Process cartridge, electrophotographic imaging device and electrophotographic photosensitive drum unit
Abstract
FIELD: physics. SUBSTANCE: present invention relates to a process cartridge, an electrophotographic imaging device in which the process cartridge can be installed with possibility of replacement thereof, and an electrophotographic photosensitive drum unit. The process cartridge (B) for use in the main unit of the imaging device, wherein the main unit includes a drive shaft (180), and the process cartridge can be removed from the main unit in a direction perpendicular to the axial direction of the drive shaft (180), wherein the process cartridge includes: i) a photosensitive drum (107) capable of turning about its axis; ii) a process means (108, 110) capable of acting on the drum; iii) a connecting element (150), capable of engaging the drive shaft in order to turn the drum (107), wherein the connecting element is capable of occupying an angular transmission position for transmitting a rotary force to the drum (107) and an angular engagement position where the connecting element is deviated from the axis of the drum (107) from the angular transmission position, wherein when removing the process cartridge (B) from the main unit in the direction perpendicular the axis of the drum (107), the connecting element (150) is displaced from the angular transmission position to the angular engagement position. EFFECT: design of a process cartridge capable of smoothly rotating the photosensitive drum by installation thereof in the main unit, which is not fitted with a mechanism for moving the connecting element on the side of the main unit in the direction of its axial line in order to transmit a rotary force to the photosensitive drum through an operation for opening and closing the cover of the main unit; as well as a photosensitive drum unit used in the process cartridge, and an electrophotographic imaging device in which the process cartridge can be installed and from which said cartridge can be removed. 145 cl, 112 dwg
Term
1.3 yearsleft in the term
Expires 25 December 2027.
- Priority
- Filed
- Granted
- Today
- Expires
145 claims: 64 independent, 81 dependent
- 1Технологический картридж для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем технологический картридж может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом технологический картридж содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси (L1) барабана;ii) технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан;и iii) соединительный элемент, вращаемый вокруг оси (L2) соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, при этом соединительный элемент имеет возможность поворота таким образом, что сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, и соединительный элемент может быть расцеплен с зацепляющей частью основного узла посредством указанного поворота.
- 2Технологический картридж по п.1, в котором соединительный элемент выводится из контакта относительно зацепляющей части основного узла посредством дополнительного перемещения, в направлении снятия, технологического картриджа после указанного поворота.
- 3Технологический картридж по п.1, который дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 4Технологический картридж по п.1, в котором, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, соединительный элемент может быть расцеплен с зацепляющей частью основного узла, поворотом соединительного элемента, посредством воспринимающей вращательное усилие части, выведенной из положения позади прикладывающей вращательное усилие части.
- 5Технологический картридж по п.1, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 6Технологический картридж по п.5, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 7Технологический картридж по п.1, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 8Технологический картридж по п.7, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 9Технологический картридж по п.1, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии технологического картриджа с основного узла устройства.
- 10Технологический картридж по п.1, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии технологического картриджа от основного узла устройства.
- 11Технологический картридж по п.1, в котором картридж снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии технологического картриджа от основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении технологического картриджа в направлении его снятия.
- 12Технологический картридж по любому из пп.1-11, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 13Технологический картридж по п.12, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 14Технологический картридж для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем технологический картридж может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом технологический картридж содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;ii) технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан;и iii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, причем соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, при этом, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством поворота соединительного элемента, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 15Технологический картридж по п.14, в котором посредством соединительного элемента, поворачивающегося при перемещении технологического картриджа в направлении снятия, воспринимающая вращательное усилие часть может быть отведена от положения позади прикладывающей вращательное усилие части относительно направления снятия.
- 16Технологический картридж по п.14, который дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 17Технологический картридж по п.14, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 18Технологический картридж по п.17, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 19Технологический картридж по п.14, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 20Технологический картридж по п.19, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 21Технологический картридж по п.14, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии технологического картриджа с основного узла устройства.
- 22Технологический картридж по п.14, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии технологического картриджа с основного узла устройства.
- 23Технологический картридж по п.14, в котором картридж снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии технологического картриджа от основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении технологического картриджа в направлении его снятия.
- 24Технологический картридж по любому из пп.14-23, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 25Технологический картридж по п.24, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 26Технологический картридж для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем технологический картридж может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом технологический картридж содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;ii) технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан;и iii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, причем соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, при этом, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством такого поворота соединительного элемента, что сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 27Технологический картридж по п.26, в котором посредством соединительного элемента, поворачивающегося при перемещении технологического картриджа в направлении снятия, воспринимающая вращательное усилие часть может быть отведена от положения позади прикладывающей вращательное усилие части относительно направления снятия.
- 28Технологический картридж по п.26, который дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 29Технологический картридж по п.26, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 30Технологический картридж по п.29, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 31Технологический картридж по п.26, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 32Технологический картридж по п.31, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 33Технологический картридж по п.26, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии технологического картриджа с основного узла устройства.
- 34Технологический картридж по п.26, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии технологического картриджа с основного узла устройства.
- 35Технологический картридж по п.26, в котором картридж снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии технологического картриджа с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении технологического картриджа в направлении его снятия.
- 36Технологический картридж по любому из пп.26-35, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 37Технологический картридж по п.36, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 38Технологический картридж для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем технологический картридж может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом технологический картридж содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;ii) технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан;и iii) соединительный элемент, вращаемый вокруг оси соединительного элемента для передачи вращательного усилия на электрофотографический фоточувствительный барабан, при этом соединительный элемент включает в себя множество воспринимающих вращательное усилие частей, предусмотренных на воображаемой окружности вокруг оси соединительного элемента в диаметрально противоположных положениях, и передающую вращательное усилие часть для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, при этом соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, iv) воспринимающий вращательное усилие элемент для принятия вращательного усилия от зацепляющей части основного узла, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, а соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом;при этом соединительный элемент имеет возможность поворота таким образом, что при перемещении технологического картриджа в направлении снятия сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, причем, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством поворота соединительного элемента, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 39Технологический картридж по п.38, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 40Технологический картридж по п.38, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 41Технологический картридж по п.38, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 42Технологический картридж по п.41, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 43Технологический картридж по п.38, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии технологического картриджа с основного узла устройства.
- 44Технологический картридж по п.38, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии технологического картриджа с основного узла устройства.
- 45Технологический картридж по п.38, в котором картридж снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии технологического картриджа с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении технологического картриджа в направлении его снятия.
- 46Технологический картридж по любому из пп.38-45, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 47Технологический картридж по п.36, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 48Блок барабана для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем блок барабана может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом блок барабана содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, при этом соединительный элемент имеет возможность поворота таким образом, что сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, и соединительный элемент может быть расцеплен с зацепляющей частью основного узла посредством указанного поворота.
- 49Блок барабана по п.48, в котором соединительный элемент выводится из контакта относительно зацепляющей части основного узла посредством дополнительного перемещения, в направлении снятия, блока барабана после указанного поворота.
- 50Блок барабана по п.48, который дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 51Блок барабана по п.48, в котором, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, соединительный элемент может быть расцеплен с зацепляющей частью основного узла с поворотом соединительного элемента, посредством воспринимающей вращательное усилие части, выведенной из положения позади прикладывающей вращательное усилие части.
- 52Блок барабана по п.48, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 53Блок барабана по п.52, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 54Блок барабана по п.48, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 55Блок барабана по п.54, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 56Блок барабана по п.48, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 57Блок барабана по п.48, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 58Блок барабана по п.48, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 59Блок барабана по любому из пп.48-58, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 60Блок барабана по п.59, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 61Блок барабана для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем блок барабана может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом блок барабана содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, причем соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, при этом, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством поворота соединительного элемента, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 62Блок барабана по п.61, в котором посредством соединительного элемента, поворачивающегося при перемещении блока барабана в направлении снятия, воспринимающая вращательное усилие часть может быть отведена от положения позади прикладывающей вращательное усилие части относительно направления снятия.
- 63Блок барабана по п.61, который дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 64Блок барабана по п.61, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 65Блок барабана по п.64, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 66Блок барабана по п.61, в котором приводной вал выполнен с полусферическими поверхностями на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 67Блок барабана по п.66, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 68Блок барабана по п.61, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 69Блок барабана по п.61, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 70Блок барабана по п.61, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 71Блок барабана по любому из пп.61-70, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 72Блок барабана по п.71, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 73Блок барабана для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем блок барабана может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом блок барабана содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, причем соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, при этом, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством такого поворота соединительного элемента, что сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 74Блок барабана по п.73, в котором посредством соединительного элемента, поворачивающегося при перемещении блока барабана в направлении снятия, воспринимающая вращательное усилие часть может быть отведена от положения позади прикладывающей вращательное усилие части относительно направления снятия.
- 75Блок барабана по п.73, который дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 76Блок барабана по п.73, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 77Блок барабана по п.76, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 78Блок барабана по п.73, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 79Блок барабана по п.78, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 80Блок барабана по п.73, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 81Блок барабана по п.73, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 82Блок барабана по п.73, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 83Блок барабана по любому из пп.73-82, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 84Блок барабана по п.83, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 85Блок барабана для электрофотографического устройства формирования изображений, включающего в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, причем блок барабана может сниматься с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, при этом блок барабана содержит:i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента для передачи вращательного усилия на электрофотографический фоточувствительный барабан, при этом соединительный элемент включает в себя множество воспринимающих вращательное усилие частей, предусмотренных на воображаемой окружности вокруг оси соединительного элемента в диаметрально противоположных положениях, и передающую вращательное усилие часть для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, при этом соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана;и iii) воспринимающий вращательное усилие элемент для принятия вращательного усилия от зацепляющей части основного узла, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, а соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом;при этом соединительный элемент имеет возможность поворота таким образом, что при перемещении блока барабана в направлении снятия сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, причем, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством поворота соединительного элемента, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 86Блок барабана по п.85, который дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 87Блок барабана по п.86, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 88Блок барабана по п.85, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 89Блок барабана по п.88, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 90Блок барабана по п.85, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 91Блок барабана по п.85, дополнительно содержащий облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 92Блок барабана по п.85, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 93Блок барабана по любому из пп.85-92, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 94Блок барабана по п.93, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 95Электрофотографическое устройство формирования изображений для формирований изображений на носителе записи, содержащее:основной узел, включающий в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, блок барабана, снимаемый с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, причем блок барабана включает в себя: i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, при этом соединительный элемент имеет возможность поворота таким образом, что сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, и соединительный элемент может быть расцеплен с зацепляющей частью основного узла посредством указанного поворота.
- 96Устройство формирования изображений по п.95, в котором соединительный элемент выводится из контакта относительно зацепляющей части основного узла посредством дополнительного перемещения, в направлении снятия, блока барабана после указанного поворота.
- 97Устройство формирования изображений по п.95, в котором блок барабана дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 98Устройство формирования изображений по п.95, в котором, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, соединительный элемент может быть расцеплен с зацепляющей частью основного узла с поворотом соединительного элемента, посредством воспринимающей вращательное усилие части, выведенной из положения позади прикладывающей вращательное усилие части.
- 99Устройство формирования изображений по п.95, в котором блок барабана дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 100Устройство формирования изображений по п.99, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 101Устройство формирования изображений по п.95, в котором приводной вал выполнен с полусферическими поверхностями на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 102Устройство формирования изображений по п.101 в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 103Устройство формирования изображений по п.95, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 104Устройство формирования изображений по п.95, дополнительно содержащее облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 105Устройство формирования изображений по п.95, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 106Устройство формирования изображений по любому из пп.95-105, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 107Устройство формирования изображений по п.106, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 108Устройство формирования изображений по п.95, в котором блок барабана включает технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан.
- 109Электрофотографическое устройство формирования изображений для формирований изображений на носителе записи, содержащее:основной узел, включающий в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, блок барабана, снимаемый с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, причем блок барабана включает в себя: i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, причем соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, при этом, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством поворота соединительного элемента, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 110Устройство формирования изображений по п.109, в котором посредством соединительного элемента, поворачивающегося при перемещении блока барабана в направлении снятия, воспринимающая вращательное усилие часть может быть отведена от положения позади прикладывающей вращательное усилие части относительно направления снятия.
- 111Устройство формирования изображений по п.109, в котором блок барабана дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 112Устройство формирования изображений по п.109, в котором блок барабана дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 113Устройство формирования изображений по п.112, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 114Устройство формирования изображений по п.109, в котором приводной вал выполнен с полусферическими поверхностями на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 115Устройство формирования изображений по п.114, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 116Устройство формирования изображений по п.109, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 117Устройство формирования изображений по п.109, дополнительно содержащее облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 118Устройство формирования изображений по п.109, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 119Устройство формирования изображений по любому из пп.109-118, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 120Устройство формирования изображений по п.119, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 121Устройство формирования изображений по п.109, в котором блок барабана включает технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан.
- 122Электрофотографическое устройство формирования изображений для формирований изображений на носителе записи, содержащее:основной узел, включающий в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, блок барабана, снимаемый с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, причем блок барабана включает в себя: i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента посредством вращательного усилия, принимаемого от зацепляющей части основного узла, причем соединительный элемент включает в себя воспринимающую вращательное усилие часть, сцепляемую с прикладывающей вращательное усилие частью, для принятия вращательного усилия, которое должно передаваться на электрофотографический фоточувствительный барабан от зацепляющей части основного узла, и передающую вращательное усилие часть, для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, причем соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, при этом, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством такого поворота соединительного элемента, что сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 123Устройство формирования изображений по п.122, в котором посредством соединительного элемента, поворачивающегося при перемещении блока барабана в направлении снятия, воспринимающая вращательное усилие часть может быть отведена от положения позади прикладывающей вращательное усилие части относительно направления снятия.
- 124Устройство формирования изображений по п.122, в котором блок барабана дополнительно содержит воспринимающий вращательное усилие элемент для принятия вращательной силы от передающей вращательное усилие части, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, и соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом.
- 125Устройство формирования изображений по п.122, в котором блок барабана дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 126Устройство формирования изображений по п.125, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 127Устройство формирования изображений по п.122, в котором приводной вал выполнен с полусферической поверхностью на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 128Устройство формирования изображений по п.127, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 129Устройство формирования изображений по п.122, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 130Устройство формирования изображений по п.122, дополнительно содержащее облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 131Устройство формирования изображений по п.122, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 132Устройство формирования изображений по любому из пп.122-131, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 133Устройство формирования изображений по п.132, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 134Устройство формирования изображений по п.122, в котором блок барабана включает технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан.
- 135Электрофотографическое устройство формирования изображений для формирований изображений на носителе записи, содержащее:основной узел, включающий в себя зацепляющую часть основного узла, приводимую в движение электродвигателем, и имеющую приводной вал и прикладывающую вращательное усилие часть, предусмотренную на приводном валу, блок барабана, снимаемый с основного узла в направлении, по существу перпендикулярном аксиальному направлению приводного вала, причем блок барабана включает в себя: i) электрофотографический фоточувствительный барабан, который может вращаться вокруг своей оси барабана;и ii) соединительный элемент, вращаемый вокруг оси соединительного элемента для передачи вращательного усилия на электрофотографический фоточувствительный барабан, при этом соединительный элемент включает в себя множество воспринимающих вращательное усилие частей, предусмотренных на воображаемой окружности вокруг оси соединительного элемента в диаметрально противоположных положениях, и передающую вращательное усилие часть для передачи вращательного усилия на электрофотографический фоточувствительный барабан через воспринимающую вращательное усилие часть, при этом соединительный элемент может поворачиваться так, что ось соединительного элемента наклоняется относительно оси барабана, и iii) воспринимающий вращательное усилие элемент для принятия вращательного усилия от зацепляющей части основного узла, причем воспринимающий вращательное усилие элемент закреплен на электрофотографическом фоточувствительном барабане, а соединительный элемент с возможностью поворота соединен с воспринимающим вращательное усилие элементом;при этом соединительный элемент имеет возможность поворота таким образом, что при перемещении блока барабана в направлении снятия сторона воспринимающей вращательное усилие части оси соединительного элемента располагается до стороны передающей вращательное усилие части оси соединительного элемента по отношению к направлению снятия, причем, когда воспринимающая вращательное усилие часть находится позади прикладывающей вращательное усилие части по отношению к направлению снятия, воспринимающая вращательное усилие часть может быть отведена из положения позади прикладывающей вращательное усилие части посредством поворота соединительного элемента, посредством которого соединительный элемент может быть расцеплен с зацепляющей частью основного узла.
- 136Устройство формирования изображений по п.135, которое дополнительно содержит поджимающий элемент для поджима соединительного элемента в направлении от электрофотографического фоточувствительного барабана к зацепляющей части основного узла, в состоянии, в котором соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла.
- 137Устройство формирования изображений по п.136, в котором соединительный элемент перемещается в направлении, противоположном направлению поджима поджимающего элемента, при повороте соединительного элемента.
- 138Устройство формирования изображений по п.135, в котором приводной вал выполнен с полусферическими поверхностями на его свободном конце, причем соединительный элемент имеет выемку, которая поджимается полусферической поверхностью, когда соединительный элемент принимает вращательное усилие от зацепляющей части основного узла.
- 139Устройство формирования изображений по п.138, в котором выемка выполнена с выступающей частью, которая выступает от оси соединительного элемента, когда расстояние от электрофотографического фоточувствительного барабана вдоль оси соединительного элемента увеличивается, при этом выступающая часть поджимается к полусферической поверхности.
- 140Устройство формирования изображений по п.135, в котором соединительный элемент поворачивается посредством принятия усилия от зацепляющей части основного узла, при снятии блока барабана с основного узла устройства.
- 141Устройство формирования изображений по п.135, в котором блок барабана дополнительно содержит облегчающий поворот элемент для поджима соединительного элемента, чтобы способствовать повороту соединительного элемента при снятии блока барабана с основного узла устройства.
- 142Устройство формирования изображений по п.135, в котором блок барабана снимается в направлении вверх, и соединительный элемент поворачивается посредством собственного веса при снятии блока барабана с основного узла устройства, причем соединительный элемент поворачивается посредством собственного веса при перемещении блока барабана в направлении его снятия.
- 143Устройство формирования изображений по любому из пп.135-142, в котором, когда соединительный элемент может принимать вращательное усилие от зацепляющей части основного узла, ось соединительного элемента и ось барабана являются, по существу, коаксиальными друг с другом.
- 144Устройство формирования изображений по п.143, в котором соединительный элемент поворачивается так, что угол между осью соединительного элемента и осью барабана составляет 20-60°, когда соединительный элемент расцепляется с зацепляющей частью основного узла.
- 145Устройство формирования изображений по п.135, в котором блок барабана включает технологическое средство, способное воздействовать на электрофотографический фоточувствительный барабан.
Independent claims145
729 paragraphs in 5 sections, as filed
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a process cartridge, an electrophotographic image forming apparatus to which the process cartridge can be installed with the possibility of substitution, and an electrophotographic photosensitive drum unit.
Examples of the electrophotographic image forming apparatus include an electrophotographic copying machine, an electrophotographic printer (laser printer, LED printer, etc.) and the like.
The process cartridge is prepared by integrally assembling in the electrophotographic photosensitive member and process means acting on the electrophotographic photosensitive member in the unit (cartridge), wherein said cartridge is mounted to and removed from the main assembly of the electrophotographic image forming apparatus. For example, the process cartridge is prepared by integrally assembling in the electrophotographic photosensitive member and at least one of a developing means, charging means and / or a cleansing agent as a process means in the cartridge. Accordingly, examples of the process cartridge include a process cartridge prepared by integrally assembling in the electrophotographic photosensitive member and three process means consisting of the developing means, charging means and cleaning means in the cartridge; a process cartridge prepared by integrally assembling in the electrophotographic photosensitive member and charging means as the process means into a cartridge; and a process cartridge prepared by integrally assembling in the electrophotographic photosensitive member and two process means consisting of the charging means and the cleaning means.
The process cartridge may be installed by the user on the main assembly of the apparatus with a possibility of its replacement. Accordingly, the maintenance of the device may be performed by the user without recourse to service personnel. The result is a line maintenance of the electrophotographic image forming apparatus.
BACKGROUND
In existing process cartridges known structure in which a rotational drive force for rotating the electrophotographic photosensitive member in the form of drum (hereinafter called "photosensitive drum") is supplied from the main assembly of the apparatus.
On the side of the main assembly includes a rotating member for transmitting the driving force of the motor and a twisted recess, which is located in the central portion of the rotating element, and its cross section is rotated together with the rotating member and has a plurality of angles.
On the side of the process cartridge is provided with a curved projection which is provided on one of the longitudinal ends of the photosensitive drum and has a cross section with a plurality of angles.
Upon rotation of the rotating member in a state of coupling between the projection and the slot in the case where the process cartridge is mounted in the main assembly of the apparatus, rotating force of the rotating member is transmitted to the photosensitive drum in the state in which the protrusion on said attractive force acts in the direction of the slit. As a result, the rotational force for rotating the photosensitive drum is transmitted from the apparatus main assembly to the photosensitive drum (US Patent 5903803).
Furthermore, a method in which the photosensitive drum is rotated by engagement with the pinion attached to the photosensitive drum, which is part of the process cartridge (US Patent No. 4,829,335).
However, in the known design described in US Patent No. 5903803, it is necessary that the rotating element is moved in the horizontal direction when mounting the process cartridge into the main assembly, or removing it from the main assembly by movement in a direction substantially perpendicular to the axial line of the rotating member. That is, it is necessary that the rotating element moves horizontally due to the operation of opening and closing the cover of the main assembly provided in the main assembly of the apparatus. As a result, the operation of opening the lid of the main assembly projection extends from the slot. On the other hand, during the operation of closing the cover main body moves to the lug groove, so as to enter into engagement with it.
Accordingly, in a process cartridge should be provided for the primary node corresponding structure for moving the rotating member in the rotation axis direction by the operation of opening and closing the cover of the main assembly.
In the construction described in US Patent 4829335 where there is no movement of the drive gear provided to the main assembly in the direction of the centerline of the cartridge can be mounted to the main assembly and removed therefrom by moving in a direction substantially perpendicular to the axial line. However, in this construction, the drive connecting portion between the main assembly and the cartridge is an engaging portion between gears, making it difficult to prevent the uneven rotation of the photosensitive drum.
SUMMARY OF THE INVENTION
The main object of the present invention to provide a process cartridge, a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with possibility of its replacement, can solve the above problems of known process cartridges.
Another object of the present invention to provide a process cartridge capable of smoothly rotating a photosensitive drum by its installation into the main assembly is not provided with a mechanism for moving the connector member to the main assembly side, in the direction of its centerline, for transmitting a rotational force to the photosensitive drum by opening operation and closing the lid of the main unit. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be installed and from which it can be removed.
Another object of the present invention to provide a process cartridge which can be removed from the main assembly of the electrophotographic image forming apparatus provided with a drive shaft in a direction perpendicular to the axial line of the drive shaft. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
Another object of the present invention to provide a process cartridge which can be mounted to the main assembly of the electrophotographic image forming apparatus provided with a drive shaft in a direction substantially perpendicular to the axial line of the drive shaft. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
Another object of the present invention to provide a process cartridge which can be mounted to the main assembly and removed from the main assembly of the electrophotographic image forming apparatus provided with a drive shaft in a direction substantially perpendicular to the axial line of the drive shaft. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
Another object of the present invention to provide a process cartridge which realizes the possibility of consistently remove the process cartridge from the main assembly provided with the driving shaft in a direction substantially perpendicular to the axial line of the drive shaft and capable of smoothly rotating the photosensitive drum. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
Another object of the present invention to provide a process cartridge which realizes consistently possibility of mounting the process cartridge to the main assembly provided with a drive shaft in a direction substantially perpendicular to the axial line of the drive shaft and capable of smoothly rotating the photosensitive drum. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
Another object of the present invention to provide a process cartridge which realizes consistently possibility of mounting the process cartridge into the main assembly, and removing it from the main assembly provided with the driving shaft in a direction substantially perpendicular to the axial line of the drive shaft and capable of smoothly rotating the photosensitive drum. Another object of the present invention is to provide a photosensitive drum unit used in the process cartridge, and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
According to the present invention there is provided a photosensitive drum unit used with the process cartridge and an electrophotographic image forming apparatus to which the process cartridge can be mounted with the possibility of removal.
According to the present invention there is provided a process cartridge which can be installed in a direction substantially perpendicular to the axis of the drive shaft, the main assembly of the electrophotographic image forming apparatus provided with the drive shaft.
According to the present invention there is provided a photosensitive drum unit used with the process cartridge and an electrophotographic image forming apparatus with a process cartridge installed with the possibility of removal.
According to the present invention there is provided a process cartridge which can be installed in and removed from the main assembly of the electrophotographic image forming apparatus provided with a drive shaft in a direction substantially perpendicular to the axis of the drive shaft.
According to the present invention there is provided a photosensitive drum unit used with the process cartridge and an electrophotographic image forming apparatus which can be installed in and which can be removed from the process cartridge.
According to the present invention, the process cartridge is set in the main assembly is not provided with a mechanism for moving the connecting member on the main assembly side for transmitting rotational force to the photosensitive drum in the axial direction, and can smoothly rotate the photosensitive drum.
According to the present invention, the process cartridge can be removed in a direction substantially perpendicular to the axis of the drive shaft provided in the main assembly, and simultaneously may provide smooth rotation of the photosensitive drum.
According to the present invention, the process cartridge can be mounted in a direction substantially perpendicular to the axis of the drive shaft provided in the main assembly, and simultaneously may provide smooth rotation of the photosensitive drum.
According to the present invention, the process cartridge can be installed and removed in a direction substantially perpendicular to the axis of the drive shaft provided in the main assembly, and simultaneously may provide smooth rotation of the photosensitive drum.
These and other objects, features and advantages of the present invention will become more apparent upon consideration of the following description of preferred embodiments of the present invention taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF DRAWINGS
1 - a side view in section of the cartridge according to an embodiment of the present invention;
Figure 2 - a perspective view of the cartridge according to the embodiment of the present invention;
Figure 3 - is a perspective view of the cartridge according to the embodiment of the present invention;
4 - sectional side view of the main assembly of the apparatus according to the embodiment of the present invention;
Figure 5 - is a perspective view and a longitudinal sectional view of a drum flange (drum shaft) according to the embodiment of the present invention;
6 - a perspective view of a photosensitive drum according to the embodiment of the present invention;
7 - longitudinal sectional views of a photosensitive drum according to the embodiment of the present invention;
Figure 8 - perspective views and a longitudinal sectional view of a connecting member according to the embodiment of the present invention;
Figure 9 - perspective views of the drum support member according to the embodiment of the present invention;
10 - detailed views of the side surface of the cartridge according to the embodiment of the present invention;
Figure 11 - exploded perspective views and longitudinal sectional views of the connecting element and the support element according to the embodiment of the present invention;
12 - a longitudinal sectional view after assembly of the cartridge according to the embodiment of the present invention;
13 - a longitudinal sectional view after assembly of the cartridge according to the embodiment of the present invention;
14 - a longitudinal sectional view of a cartridge according to the embodiment of the present invention;
Figure 15 - perspective views illustrating the drum shaft and the connecting member in a connected state;
Figure 16 - perspective views illustrating a tilting state of the connecting element according to the embodiment of the present invention;
Figure 17 - perspective views and a longitudinal sectional view of the driving structure of the main assembly of the apparatus according to the embodiment of the present invention;
Figure 18 - perspective view of a cartridge mounting portion in the main assembly of the apparatus according to the embodiment of the present invention;
Figure 19 - perspective view of a cartridge mounting portion in the main assembly of the apparatus according to the embodiment of the present invention;
Figure 20 - sectional views illustrating the installation process cartridge into the main assembly of the apparatus according to the embodiment of the present invention;
Figure 21 - perspective views illustrating the process of coupling a driving shaft and a connecting member according to the embodiment of the present invention;
Figure 22 - perspective views illustrating the process of coupling a driving shaft and a connecting member according to the embodiment of the present invention;
Figure 23 - perspective views illustrating the coupling member and the apparatus main assembly coupling member of the cartridge according to the embodiment of the present invention;
Figure 24 - exploded perspective view illustrating the drive shaft, the pinion gear, the connecting member and the drum shaft according to the embodiment of the present invention;
Figure 25 - perspective views illustrating the process of disengagement of the connecting element from the drive shaft according to the embodiment of the present invention;
Figure 26 - perspective views illustrating the coupling member and the drum shaft according to the embodiment of the present invention;
Figure 27 - perspective views illustrating a drum shaft according to the embodiment of the present invention;
Figure 28 - perspective views illustrating a drum shaft and a pinion gear according to the embodiment of the present invention;
Figure 29 - perspective views illustrating a connecting element according to the embodiment of the present invention and side views;
Figure 30 - exploded perspective views illustrating the drum shaft, drive shaft and a connecting member according to the embodiment of the present invention;
Figure 31 - a side view and a longitudinal section of the lateral surface of the cartridge according to the embodiment of the present invention;
Figure 32 - a perspective view and a side view of the cartridge mounting portion in the main assembly of the apparatus according to the embodiment of the present invention;
33 - longitudinal sectional views illustrating the process of removing the cartridge from the main assembly of the apparatus according to the embodiment of the present invention;
Figure 34 - longitudinal sectional views illustrating the process of mounting the cartridge into the main assembly of the apparatus according to the embodiment of the present invention;
Figure 35 - perspective views illustrating a means for controlling the phase of the drive shaft according to a second embodiment of the present invention;
Figure 36 - perspective views illustrating the mounting operation of the cartridge according to the embodiment of the present invention;
Figure 37 - perspective views of a connecting member according to the embodiment of the present invention;
Figure 38 - top views of the cartridge installed in the mounting direction according to the embodiment of the present invention;
Figure 39 - perspective views illustrating the process cartridge (photosensitive drum) able to stop the drive according to the embodiment of the present invention;
Figure 40 - longitudinal sectional views and perspective views illustrating the removal operation of the process cartridge according to the embodiment of the present invention;
Fig.41 - is a sectional view illustrating a state when the door is open, provided in the main assembly of the apparatus according to the third embodiment of the present invention;
Figure 42 - is a perspective view illustrating a mounting guide on the drive side of the main assembly of the apparatus according to the embodiment of the present invention;
Figure 43 - a side view of a driving side of the cartridge according to the embodiment of the present invention;
Figure 44 - is a perspective view from the driving side of the cartridge according to the embodiment of the present invention;
Figure 45 - is a side view illustrating a state in which the cartridge is inserted into the main assembly of the apparatus according to the embodiment of the present invention;
46 is - is a perspective view illustrating a state in which the locking member is coupled to the carrier element of the drum according to a fourth embodiment of the present invention;
Figure 47 - exploded perspective view showing the drum bearing member, the connecting member and the drum shaft according to the embodiment of the present invention;
Figure 48 - is a perspective view illustrating the driving side of the cartridge according to the embodiment of the present invention;
Figure 49 - perspective views and longitudinal sectional views illustrating a coupled state of the drive shaft and a connecting member according to the embodiment of the present invention;
fig.50 - an exploded perspective view illustrating a state in which the carrier element on the drum has been installed, the pressing member according to a fifth embodiment of the present invention;
Fig.51 - exploded perspective views showing the drum bearing member, the connecting member and the drum shaft according to the embodiment of the present invention;
Figure 52 - is a perspective view illustrating the driving side of the cartridge according to the embodiment of the present invention;
53 is - perspective views and longitudinal sectional views illustrating a coupled state of the drive shaft and a connecting member according to the embodiment of the present invention;
54 is - an exploded perspective view illustrating a cartridge before assembling the major members according to a sixth embodiment of the present invention;
fig.55 - a side view illustrating the driving side according to the embodiment of the present invention;
fig.56 - schematic longitudinal sectional views of a drum shaft and a coupling member according to the embodiment of the present invention;
fig.57 - longitudinal sectional views illustrating a coupling between the drive shaft and the connecting element according to the embodiment of the present invention;
58A - sectional views illustrating a modified example of the locking element of the connecting assembly according to the embodiment of the present invention;
fig.59 - a perspective view illustrating a state in which the reel on the support element is fixed magnetic element according to a seventh embodiment of the present invention;
fig.60 - an exploded perspective view showing the drum bearing member, the connecting member and the drum shaft according to the embodiment of the present invention;
61, - is a perspective view illustrating the driving side of the cartridge according to the embodiment of the present invention;
fig.62 - perspective views and longitudinal sectional views illustrating a coupled state of the drive shaft and a connecting member according to the embodiment of the present invention;
fig.63 - a perspective view illustrating the driving side of the cartridge according to the eighth embodiment of the present invention;
fig.64 - exploded perspective views illustrating a state before the assembly of the carrier element according to the embodiment of the present invention;
fig.65 - longitudinal sectional views illustrating the structure of the drum shaft, the coupling element and the carrier element according to the embodiment of the present invention;
fig.66 - a perspective view illustrating the driving side of the apparatus main assembly guide according to the embodiment of the present invention;
fig.67 - longitudinal sectional views illustrating the state of unlatching the closure element according to the embodiment of the present invention;
fig.68 - longitudinal sectional views illustrating a coupling between the drive shaft and the connecting element according to the embodiment of the present invention;
fig.69 - side views illustrating the driving side of the cartridge according to a ninth embodiment of the present invention;
fig.70 - a perspective view illustrating the driving side of the apparatus main assembly guide according to the embodiment of the present invention;
fig.71 - side views illustrating the interaction between the cartridge and the main assembly guide according to the embodiment of the present invention;
fig.72 - perspective views illustrating the interaction between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.73 - side views from the driving side, illustrating the process of mounting the cartridge to the main assembly according to the embodiment of the present invention;
fig.74 - a perspective view illustrating the driving side of the main assembly guide according to a tenth embodiment of the present invention;
fig.75 - a side view illustrating the interaction between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.76 - a perspective view illustrating the interaction between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.77 - a side view illustrating the interaction between the cartridge and the main assembly guide according to the embodiment of the present invention;
fig.78 - perspective views illustrating the interaction between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.79 - a side view illustrating the interaction between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.80 - a perspective view illustrating the relationship between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.81 - a side view showing the relation between the main assembly guide and the coupling element according to the embodiment of the present invention;
fig.82 - a perspective view and a sectional view of the connecting element according to the eleventh embodiment of the present invention;
fig.83 - a perspective view and a sectional view of the connecting element according to the embodiment of the present invention;
fig.84 - fig.82 - a perspective view and a sectional view of the connecting element according to the embodiment of the present invention;
fig.85 - perspective views and sectional views of a connecting member according to a twelfth embodiment of the present invention;
fig.86 - perspective views illustrating a connecting member according to a thirteenth embodiment of the present invention;
fig.87 - sectional view illustrating a drum shaft, a drive shaft connecting member and a biasing member according to the embodiment of the present invention;
fig.88 - sectional views which illustrate the drum shaft, the coupling member, the carrier element and the drive shaft according to the embodiment of the present invention;
fig.89 - a perspective view illustrating a drum shaft and a coupling member according to the 14th embodiment of the present invention;
fig.90 - perspective views illustrating the process of coupling a driving shaft and a connecting member according to the embodiment of the present invention;
fig.91 - perspective views and sectional views illustrating the drum shaft, the coupling member and a supporting member according to the 15th embodiment of the present invention;
fig.92 - perspective views illustrating a method for supporting the coupling member (mounting method) according to 16th embodiment of the present invention;
fig.93 - perspective views illustrating a method for supporting the coupling member (mounting method) according to 17th embodiment of the present invention;
fig.94 - a perspective view of the cartridge according to an embodiment of the present invention;
fig.95 - illustration only connecting element according to the embodiment of the present invention;
fig.96 - illustration of a drum flange having a coupling member according to an embodiment of the present invention;
fig.97 - sectional views along the line S22-S22 in the fig.84;
fig.98 - sectional view of a photosensitive drum unit according to an embodiment of the present invention;
fig.99 - sectional view taken along a line S23-S23 in the fig.85;
fig.100 - perspective views illustrating the drum shaft and the coupling member in a combined state according to an embodiment of the present invention;
fig.101 - perspective views illustrating a coupling member in an inclined state according to an embodiment of the present invention;
fig.102 - perspective views illustrating the process of coupling the drive shaft with a coupling element according to an embodiment of the present invention;
fig.103 - perspective views illustrating the process of coupling the drive shaft with a coupling element according to an embodiment of the present invention;
fig.104 - exploded perspective views illustrating a driveshaft, pinion gear, the connecting member and the drum shaft according to an embodiment of the present invention;
fig.105 - perspective views illustrating the process of disengagement of the connecting element from the drive shaft according to an embodiment of the present invention;
fig.106 - perspective views illustrating the drum shaft and the coupling member in a combined state according to an embodiment of the present invention;
fig.107 - perspective views illustrating the drum shaft and the coupling member in a combined state according to an embodiment of the present invention;
fig.108 - perspective views showing the drum shaft and the coupling member in a combined state according to an embodiment of the present invention;
fig.109 - a perspective view of a first frame unit having a photosensitive drum by the driving side according to an embodiment of the present invention;
fig.110 - is a perspective view illustrating a drum shaft and a coupling element according to the embodiment of the present invention;
fig.111 - sectional view taken along a line S20-S20 in the fig.79;
fig.112 - a perspective view of a photosensitive drum unit according to an embodiment of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
The following describes the process cartridge and an electrophotographic image forming apparatus according to an embodiment of the present invention.
Option 1
(1) Brief description of process cartridge
The process cartridge B to which the embodiment of the present invention is applicable is described with reference to Figures 1-4. 1 is a sectional view of the cartridge B. Figures 2 and 3 are perspective views of the cartridge B. Figure 4 is a sectional view of the main assembly of the electrophotographic image forming apparatus (hereinafter referred to as "apparatus main assembly A"). A basic unit of the device corresponds to the electrophotographic image forming apparatus, which is removed from the cartridge B.
As shown in Figures 1-3, the cartridge B includes an electrophotographic photosensitive drum 107. The photosensitive drum 107 is rotated under the influence of a rotational force from the apparatus main assembly A by a coupling mechanism, when the apparatus main assembly A the cartridge B is installed, as shown in 4. The cartridge may be installed in the apparatus A main assembly or removed therefrom by the user.
In contact with the outer peripheral surface of the photosensitive drum 107 is provided a charging roller 108 as a charging means (process means). The charging roller 108 provides electrical charging of the photosensitive drum 107, the voltage supply from the main assembly A of the device. The charging roller 108 is rotated by the rotation of the photosensitive drum 107.
The cartridge B includes a developing roller 110 as a developing means (process means). The developing roller 110 supplies the developer to the developing zone of the photosensitive drum 107. The developing roller 110 via the developer t develops the electrostatic latent image formed on the photosensitive drum 107. The developing roller 110 contains a magnet roll (a permanent magnet) 111. In contact with the peripheral surface of the developing roller 110 provided a developing blade 112. The knife 112 developer determines the amount of developer t, is placed on the peripheral surface of the developing roller 110. The developing blade 112 transmits a triboelectric charge in the developer t.
The developer t, which is in the container 114 for storing the developer is fed to the developing chamber 113a by rotation of stirring members 115 and 116, so that the developing roller 110 with the voltage applied thereto is rotated. As a result, on the surface of the developing roller 110, a layer of developer, which developer blade 112 electrically charges reported. The developer t is transferred onto the photosensitive drum, depending on the latent image. The resulting latent image is developed.
The developer image formed on the photosensitive drum 107 is transferred onto the recording medium 102 transmit transfer roller 104. Recording medium 102 is used to form the developed image thereon; it may be, for example, paper for recording instruments, label, OHP sheet, etc.
In contact with the outer peripheral surface of the photosensitive drum 107 is an elastic cleaning blade 117a as a cleaning means (process means). The cleaning blade 117a elastically contacts the photosensitive drum 107 at its end and removes the developer t, remaining on the photosensitive drum 107 after the developer image transferred on the recording medium 102. The developer t, remote from the surface of the photosensitive drum 107 a cleaning blade 117a, 117b is placed in the tank for remote developer.
The cartridge is fully formed the first unit of the RAMS RAMS 119 and the second unit 120. The first frame unit 119 is formed as the first frame 113 of the frame B1 cartridge. The first frame unit 119 includes a developing roller 110, a blade 112 of the developer, the developing chamber 113a, the container 114 to accommodate the developer and the stirring members 115 and 116.
The second frame unit 120 is formed as the second frame 118 of the frame B1 cartridge. The second frame unit 120 includes a photosensitive drum 107, cleaning blade 117a, 117b detachable tank for the developer and the charging roller 108.
The first frame unit 119 and a second frame unit 120 are connected with each other (with the possibility of rotation) P. finger to the photosensitive drum 107 is pressed against the developing roller 110 due to the elastic member 135 (Figure 3) provided between the first and second blocks by web 119 and 120.
The user establishes (sets) the cartridge B in the part 130a for mounting the cartridge in the main assembly A device while holding the grip. During installation, as described below, the drive shaft 180 (Figure 17) apparatus main assembly A and a coupling member 150 (described below) as part of the cartridge B, which transmits the rotational force, connected to each other in synchronism with the operation of the installation of the cartridge B. The photosensitive drum 107 or the like It is rotated by the rotational force from the apparatus main assembly A.
(2) Description of electrophotographic image forming apparatus
Next, with reference to Figure 4 describes the electrophotographic image forming apparatus using the above-described cartridge B.
In the following description of exemplary apparatus main assembly A is taken laser printer.
During the image forming surface of the rotating photosensitive drum 107 is uniformly electrically charged by the charging roller 108. Then, the surface of the photosensitive drum 107 is irradiated with the laser beam (in accordance with image information) emitted from the optical means 101, which includes such elements, not shown here, as a laser diode , a polygon mirror, a lens and reflecting mirror. As a result, the photosensitive drum 107 is formed an electrostatic latent image depending on image information. This latent image is developed by the developing roller 110 as described above.
On the other hand, in synchronism with the imaging pickup roller 103b and conveying roller pairs 103c, 103d and 103rd transported recording medium 102 mounted in the cassette 103a, in place of the transfer. As the transfer means in place of the transfer roller 104 is transferring. By the transfer roller 104 a voltage is applied. As a result, the recording medium 102 is transferred developer image formed on the photosensitive drum 107.
Recording medium 102 on which the transferred developer image is transported to fixing means 105 through a guide 103f. The locking means 105 includes a driving roller 105c and a fixing roller 105b, containing a heater 105a. By passing the recording medium 102 supplied heat and pressure is applied in order to fix the developer image on the recording medium 102. As a result, the recording medium 102 an image is formed. After that, the recording medium 102 transported by roller pairs 103g and 103h and is displayed in the tray 106. The above-described roller 103b, the conveying roller pair 103c, 103d and 103e, the guide 103f, 103g, and a pair of roller 103h, etc. constitute a means of transportation for 103 medium transport 102 records.
Part 130a is a cartridge mounting portion (space) for mounting therein the cartridge B. In the state in which the cartridge B is placed in this space, the connecting member 150 (described below) of the cartridge B is connected with the drive shaft of the main assembly A of the device. In this embodiment, the cartridge is installed in the mounting portion 130a is called the cartridge is installed in the main assembly A of the device. Moreover, removal (transfer) of the cartridge B from the mounting portion 130b is called removing the cartridge B from the apparatus main assembly A.
(3) Description of the construction of the drum flange
First, with reference to Figure 5 describes a drum flange on the side where the rotational force is transmitted from the apparatus main assembly A to the photosensitive drum 107 (hereinafter it is simply called a "drive side"). 5 (a) is a perspective view of the drum flange at the drive side, and in Figure 5b - view of the drum flange taken along line S1-S1, shown in Figure 5 (a). Incidentally, with respect to the direction of the axial line of the photosensitive drum side opposite the drive side, it is called "non drive side".
The flange 151 of the drum is made of resinous material by injection molding. Examples of the resinous material may include polyacetal, polycarbonate, etc. The shaft 153 of the drum is made of metal such as iron, stainless steel or the like Suitable materials for the flange 151 and the drum shaft 153 of the drum can be chosen depending on the load torque during the rotation of the photosensitive drum 107. For example, the drum flange 151 may also be made of metal, and the drum shaft 153 may be made of resinous material. When the flange 151 and the drum, and the drum shaft 153 are made of resin material, they may be formed integrally.
Flange 151 is provided with an engaging part 151a that engages with the inner surface of the photosensitive drum, gear portion (helical gear or spur gear) 151c for transmitting a rotational force to the developing roller 110, the engaging portion 151d is supported on the support drum rotatably. In particular, when using the flange 151 of the engaging portion 151a engages with one end of a cylindrical drum 107a as will be described below. They are located on the same axis as the axis L1 of rotation of the photosensitive drum 107. The drum engaging portion 151a has a cylindrical shape and is provided perpendicular to the base 151b. The base 151b is provided with a drum shaft 153 extending outwardly in an axial direction L1. Said shaft 153 has a drum coaxial with the drum engaging portion 151a. They are fixed coaxially with the axis L1 of rotation. As a method of attachment can be chosen press fit, bonding, filling, etc. from among the existing methods.
Shaft 153 comprises a cylindrical drum portion 153a, which has a protruding shape and is disposed coaxially with the rotational axis of the photosensitive drum 107. At the end portion of the photosensitive drum 107 on the axis L1 of the photosensitive drum 107 is provided a drum shaft 153. In addition, the drum shaft 153 has a 5-15 mm in diameter depending on the material and the load space. Part 153b of the free end of the cylindrical portion 153a is configured with a hemispherical surface, so that it can be smoothly tilted by tilting the axis of the drum coupling member 150 which is a part that transmits rotational force, as described more fully below. Furthermore, for obtaining a rotational force from the drum coupling member 150 at the side of the free end of the shaft 153 of the photosensitive drum 107 is provided finger rotational force transmitting element (part) 155 that accepts the rotational force. A finger 155 extends in a direction substantially perpendicular to the axis of the shaft 153 of the drum.
Leg 155 as an element-receiving rotational force is cylindrical with a diameter smaller than the diameter of the cylindrical portion 153a of the drum shaft 153, and is made of a metal or a resinous material. It is attached by press fitting, gluing, etc. with the shaft 153 of the drum. Pin 155 is fixed in a direction in which its axis intersects the axis L1 of the photosensitive drum 107. Preferably, the axis of the pin 155 is positioned so that it passes through the center P2 of the spherical surface portion 153b at the free end of the drum shaft 153 (Figure 5 (b)) . Although the free end portion 153b actually has a hemispherical surface, the center P2 is the center of an imaginary spherical surface, wherein said hemispherical surface is a part. It is possible to properly select the number of fingers 155. In this embodiment, a single finger 155, based on the characteristics of the assembly and ensure reliable transfer of torque. Pin 155 passes through said center P2 and the shaft 153 of the drum. Pin 155 extends outwardly in places peripheral surface of the drum shaft 153 diametrically opposed to each other (155a1, 155a2). In particular, the pin 155 projects in a direction perpendicular to the axis (axis L1) of the drum shaft 153 at two opposite locations (155a1, 155a2). With this drum shaft 153 receives a rotational force from the drum coupling member 150 at two locations. In this embodiment, the pin 155 is mounted on the drum shaft 163 is 5 mm from the free end of the shaft 153 of the drum. However, this is not a limitation of the present invention.
Furthermore, the spatial part 151e formed by the engaging portion 151d and the base 151b, accommodates a portion of the drum coupling member 150 when installed on the flange 151 of the drum coupling member 150 (as described below).
In this embodiment, the flange 151 is installed the gear portion 151a for transmitting the rotational force to the developing roller 110. However, the rotation of the developing roller 110 can provide not through the flange 151. In this case, the gear portion 151c is not required. However, in the case of the gear portion 151a of the flange 151 can be used forming the gear portion 151a of the flange 151 as a single piece.
The flange 151, the drum shaft 153 and the pin 155 acting as an element-receiving rotational force, which receives the rotational force from the drum coupling member 150 as will be described below.
(4) Construction of the electrophotographic photosensitive drum unit
Referring to Figures 6 and 7, with reference to the block that describes the construction of an electrophotographic photosensitive drum ("Drum Unit"). 6 (a) is a perspective view of the drum unit U1 with the driving side and Figure 6 (b) - it is not a perspective view with the driving side. Furthermore, Figure 7 shows a sectional view along line S2-S2 in Figure 6 (a).
The photosensitive drum 107 has a cylindrical drum 107a coated with a photosensitive layer 107b on its peripheral surface.
The cylindrical drum 107a has an electroconductive cylinder, such as aluminum, and thereon a photosensitive layer 107b. At opposite ends of the drum and is provided substantially coaxial hole 107a1, 107a2 engaging with a flange (151, 152) of the drum. In particular, the end portion of the cylindrical drum 107a co-axially with the cylindrical drum 107a of the shaft 153 is provided drum. Gear labeled 151c transmits to the developing roller 110 rotational force which the coupling member 150 receives from the drive shaft 180. The gear 151c is formed with a flange 151 integrally.
The cylinder 107a may be hollow or solid.
Description of the drum flange 151 on the drive side is omitted because it was given above.
Flange 152 on the drum is not driven side is made of a resinous material as the drive side, using injection molding. Drum engaging portion 152b and the support portion 152a positioned virtually coaxial in relation to each other. Furthermore, the flange 152 is provided with a drum grounding plate 156. Drum grounding plate 156 is an electroconductive thin plate (metal). Drum grounding plate 156 includes contact portions 156b1, 156b2, which are in contact with the conductive inner surface of the cylindrical drum 107a, and the contact portion 156a which contacts the drum grounding shaft 154 (which will be described later). For the purpose of grounding the photosensitive drum 107 of the drum grounding plate 156 is electrically connected to the main assembly A of the device.
Flange 152 on the drum is not driven side is made of a resinous material as the drive side, using injection molding. Drum engaging portion 152b and the support portion 152a are located virtually coaxially with respect to one another. Furthermore, the flange 152 provides grounding plate 156 of the drum. Drum grounding plate 156 is an electroconductive thin plate (metal). Drum grounding plate 156 includes contact portions 156b1, 156b2, which are in contact with the conductive inner surface of the cylindrical drum 107a, and the contact portion 156a which contacts the drum grounding shaft 154 (which will be described later). For the purpose of grounding the photosensitive drum 107 of the drum grounding plate 156 is electrically connected to the main assembly A of the device.
Although in this specification indicates that the drum grounding plate 156 is provided on the flange 152, the present invention is not limited to this example. For example, the drum grounding plate 156 may be on the drum flange 151, and it is possible to properly select a location that can be connected to "ground".
Thus, the control unit U1 of the drum 107 comprises a photosensitive drum having a cylinder 107a, the flange 151, the flange 152, the drum shaft 153, the pin 155 and the ground plate 156 of the drum.
(5) Part of transmitting rotational force (the connecting element of the drum)
Referring to Figure 8 describes an example of the drum coupling member which is a part that transmits the rotational force.
8 (a) shows a perspective view of a coupling member drum from the main assembly of the apparatus, Figure 8 (b) shows a perspective view of the coupling member from the drum of the photosensitive drum, and Figure 8 (c) - is a perspective view in the direction perpendicular to the rotation axis L2 of the connecting element. Besides, 8d is a side view of the connecting member drum from the main assembly of the apparatus, Figure 8 (e) shows a side view of the photosensitive drum, and Figure 8 (f) - is a sectional view along the line S3 in Figure .8 (d).
Connecting element ("Compound") 150 carries out engagement with the drum drive shaft 180 (Figure 17) apparatus main assembly A in the state where the cartridge B is installed into the installation section 130a. In addition, the coupling member 150 is disengaged from the driving shaft 180 when the cartridge B is removed from the apparatus main assembly A. The coupling member 150 receives the rotational force from the motor provided in the apparatus main assembly A through the drive shaft 180 in a state where it is engaged with the drive shaft 180. In addition, the connecting member 150 transmits the rotational force to the photosensitive drum 107. The materials of which can perform the connecting member 150 are resin materials such as polyacetal and the polycarbonate PPS. However, to increase the rigidity of the coupling member 150 in the above-described resin material depending on the required load torque may be added to the optical fiber, carbon fiber, etc. In the case of adding a mixture of the material stiffness of the coupling member 150 may increase. In addition, a resinous material may be introduced into the metal so that it was possible to further increase the rigidity, and can be made from a metal entire connecting element etc.
The connecting member 150 basically comprises three parts.
The first part can perform the clutch with the drive shaft 180 (described later), and it is a driven portion 150a on the side of the coupling member to receive a rotational force from the pin 182, transmitting rotational force that is part of applied rotational force (the part that transmits the rotational force on the main assembly side) provided on the drive shaft 180. In addition, a finger grip 155 may carry the second part of which is a driving portion 150b side coupling member for transmitting a rotational force to the shaft 152 of the drum. This third part is a connecting portion 150c to connect with each other driven ca STI 150a and the driving part 150b (8 (a and f)).
The driven portion 150a, the driving portion 150b and the connecting portion 150c may be molded integrally, or, alternatively, as separate parts which can be connected with each other. In this embodiment, these parts are integrally molded with resinous material. With this manufacturing connecting member 150 presents no difficulties when these high precision parts. As shown in Figure 8 (f), the driven portion 150a has a portion 150m in the form of holes for the input drive shaft which extends through the rotational axis L2 the coupling member 150. The driving portion 150b has a part in form of a bore 150l input shaft of the drum that passes axis L2 of rotation.
The opening 150m has a conical surface 150f to input drive shaft in a projecting portion extending in the direction of the drive shaft 180 in a state where the coupling member 150 is set in the main assembly A of the device. Receiving surface 150f forms a recess 150z, as shown in Figure 8 (f). The recess 150z includes an opening 150m in a location opposite the side adjacent to the photosensitive drum 107 in accordance with the direction of the axis L2.
Due to this, regardless of rotation phase of the photosensitive drum 107 in the cartridge B, the coupling member 150 may be pivotally rotated between the angular position transmitting rotational force angular position prior coupling and the angular position of disengagement relative to the axis L1 of the photosensitive drum 107 without impeding the free end of the drive shaft 180. The angular position, the rotational force transmitting angular position and the pre-clutch disengagement angular position described below.
Circumferentially about the axis L2 on an end surface of the recess 150z provided with a plurality of projections (engaging portion) 150d1-150d4 equal intervals. Between adjacent ribs 150d1, 150d2, 150d3, 150d4 provided taking part 150k1, 150k2, 150k3, 150k4. Intervals between adjacent protrusions 150d1-150d4 larger outer diameter pin 182, so that a finger placing the drive shaft 180, the rotational force transmission, which are provided in the main assembly of the apparatus A (the portions applied rotational force) 182. The recesses between the adjacent projections and the receiving portion are 150k1-k4. When transmitting a rotational force to the coupling member 150 from the driving shaft 180 transmitting fingers 182a1, 182a2 fall into any of the receiving portions 150k1-k4. Furthermore, as shown in Figure 8 (d), ahead in the clockwise direction (X1) of each projection 150d includes surface 150E for receiving the rotational force (the portion which receives the rotational force), intersecting with the direction of rotation of the coupling member 150, the surface (150e1-150e4) provided ahead in the clockwise direction for each finger 150d. In particular, the projection 150d1 has a receiving surface 150e1, the projection 150d2 has a receiving surface 150e2, the projection 150d3 has a receiving surface 150e3 and the projection 150d4 has a receiving surface 150e4. In a state where the drive shaft 180 rotates, the pin 182a1, 182a2 contacts with any of the sensing surfaces 150e1-150e4. With this finger 182 presses onto a surface 150E in contact with the finger 182a1, 182a2. As a result, the connecting member 150 is rotated around the axis L2. 150e1-150e4 receiving surface extends in a direction intersecting with the direction of rotation of the coupling member 150.
So as to better stabilize the torque transmitted to the coupling member 150, it is desirable to arrange the surface 150E that receive the rotational force on the same circle centered about the axis L2. Due to this rotational force transmission radius is constant and stabilize the torque transmitted to the coupling member 150. In this regard 150d1-150d4 protrusions, it is preferable that the position of the connecting member 150 is stabilized by the equality of forces, which receives the connecting member. For this reason, in this embodiment, perceiving surface 150E arranged in diametrically opposite positions (180 degrees). In particular, in this embodiment, the receiving surface 150e1 and receiving surface 150e3 are diametrically opposed to each other and diametrically opposed to each other perceive surface 150e2 and 150e4 (8 (d)). With this arrangement, force that takes the coupling member 150 to form a force couple. Thus, the coupling element 150 can continue rotary motion only sensing action of this force couple. For this reason, the connecting member 150 can rotate without the need to install a position corresponding to its rotation axis L2. Furthermore, with regard to quantity, it can be selected appropriately, with the proviso that the fingers 182 of the drive shaft 180 (the portion applied rotational force) can enter the receiving portion 150k1-150k2. In this embodiment, as shown in Figure 8, there are four surfaces of perception. This option is not limited to this example. For example, perceiving surface 150E (protrusions 150d1-150d4) need not necessarily be on the same circle (imaginary circle C1 in Figure 8 (d)). It is also not necessary that they are in diametrically opposite positions. However, the above results can be achieved by placing the receiving surface 150E as described above.
In this embodiment, the diameter of the pin is approximately 2 mm and the circumferential length of the receiving portion 150k is approximately 8 mm. The circumferential length of the receiving portion 150k is an interval between adjacent protrusions 150d (on an imaginary circle). These dimensions are not limitative of the present invention.
Like the opening portion 150m 150l of shaft insertion holes of the drum has a conical surface 150i, a receiving rotational force of the protruding portion, which extends in the direction of the drum shaft 153 in the state where it is mounted on the cartridge B. The receiving surface 150i forms a recess 150q, as shown in Figure 8 (f).
Due to this, regardless of rotation phase of the photosensitive drum 107 in the cartridge B, the coupling member 150 may be pivotally rotated between the angular position transmitting rotational force angular position prior coupling and the angular position of disengagement with the axis L1 of the drum, without experiencing hindrance from the free end of the shaft 153 of the drum. In the example shown here recess 150q is formed by a conical receiving surface 150i with the center of the axis L2. The receiving surface 150i includes receiving holes 150g1 and 150g2 (8b). As for the connecting member 150, the fingers 155 may be inserted into said hole 150g1 and 150g2, so that the connecting member can be mounted on the shaft 153 of the drum. The size of the holes 150g1 and 150g2 larger than the outer diameter of pin 155. Due to this, regardless of rotation phase of the photosensitive drum 107 in the cartridge B, the coupling member 150 may be pivotally rotated between the angular position transmitting rotational force and angular pre-locked position (or disengaging angular position) as will be described below, without experiencing hindrance from the pin 155.
In particular, in the neighborhood of the free end of the recess 150z provided protrusion 150d. Protrusions 150d protrude in a direction which intersects with the direction of rotation of the coupling member 150, the intervals between them are provided along the direction of rotation. In the state where the cartridge B is set in the main assembly A device perceiving surface 150E engage or abut the finger 182 and are under its influence.
With this perceiving surface 150E receive the rotational force from the drive shaft 180. In addition, perceiving surface 150E disposed equidistant from the axis L2, and they form a pair relative to the axis L2, and they are formed in a surface intersecting direction with projections 150d. Thus the direction of rotation provided for receiving parts (recesses) 150k, being pressured toward the axis L2.
Receiving portion 150k is formed as a space between adjacent projections 150d. In a state where the cartridge B is set in the main assembly A device, finger 182 includes a receiving portion 150k and remains there for driving. When the drive shaft 180 rotates, the pin 182 pushes the receiving surface 150E.
Due to this coupling member 150 rotates.
The surface 150E, perceiving the rotational force (element (part) that accepts the rotational force), can be located within the surface 150f, the host drive shaft. The receiving surface 150E may be provided in a portion, projecting outwardly from the receiving surface 150f in accordance with the direction of the axis L2. When the location of the receiving surface 150E within the receiving surface 150f receiving portion 150k is inside the receiving surface 150f.
In particular, the receiving portion 150k is the recess provided between the protrusions 150d inside the arc of the receiving surface 150f. Here, when the receiving surface 150E is located at a position protruded outwardly receiving portion 150k is the recess, located between the projections 150d. There recess may be a through hole extending in the direction of the axis L2, or may be closed at one end. In particular, the recess is provided by a spatial region provided between the projections 150d. All that is necessary is to allow the insertion of finger 182 in a specified area in a state where the cartridge B mounted in the main assembly A of the device.
These structures host part are applicable in a similar manner to the embodiments described below.
8 (e) surface 150h (150h1 and 150h2), transmitting rotational force provided behind holes 150g1 and 150g2 in the clockwise direction (X1). The rotational force is transmitted to the photosensitive drum 107 from the coupling member 150 or convective sections 150h1 150h2, in contact with any of the fingers 155a1, 155a2. In particular, the transmitting surface 150h1 and 150h2 press on the lateral surface of the finger 155. This connecting member 150 is rotated with the center aligned with the axis L2. Transmitting surface 150h1 or 150h2 extends in a direction intersecting with the direction of rotation of the coupling member 150.
By analogy with the protrusion 150d transmitting surface 150h1 and 150h2 desirable to place on the same circumference at diametrically opposite positions relative to each other.
During manufacture, the drum coupling member 150 by injection molding the connecting element 150 can be thin. The reason for this is that the manufacture of the connecting element trying to ensure that the part 150a, the rotational force of perceiving, the driving portion 150b and the connecting portion 150c have substantially the same thickness. When the rigidity of the connecting portion 150c is insufficient, it is possible to execute a connecting portion 150c thicker, but so that the driven portion 150a, the driving portion 150b and the connecting portion 150c have substantially the same thickness.
(6) The support member drum
Referring now to Figure 9 describes a drum support member. 9 (a) is a perspective view from the side of the drive shaft, and 9 (b) - is a perspective view from the side of the photosensitive drum.
The support member 157 supports the drum, the photosensitive drum 107 to the second frame 118, allowing its rotation. Further, the support member 157 for positioning of the second frame unit 120 in the main assembly A of the device. Moreover, it is designed to hold the connecting member 150, so that it was possible to transmit the rotational force to the photosensitive drum 107.
As shown in Figure 9, the engaging portion 157d, positioned to the second frame 118 and the peripheral portion 157c, is positioned to the main assembly of the apparatus A, are physically located on the same axis. Engaging portion 157d and the peripheral portion 150c have a ring shape. The connecting member 150 is located within the spatial part 157b. Engaging portion 150d and the peripheral part 157c are provided with a rib 157e, to the connecting member 150 remains in the cartridge in the region of the central portion relative to the axial direction. The support member 157 has holes 157g1 and 157g2, which penetrate the boundary surface 157f, and a fixing screw for fixing the supporting member 157 to the second frame 118. As described below, the supporting member 157 as an integral part of the guide portion 157a is provided for installation and removal cartridge B from the main assembly A of the device.
(7) The method for installing the connecting element
Next, with reference to fig.10-16 describe how the connecting element. Figure 10 (a) is an enlarged view (on the side surface of the driving side) of the main part around the photosensitive drum. Figure 10 (b) is an enlarged view of a main part on the side surface of the driving side does not. Figure 10 (c) is a sectional view along line S4-S4 in Figure 10 (a).
11 (a) and (b) are exploded perspective views illustrating a state before fixing the main elements of the second frame unit. 11 (c) is a sectional view along the line S5-S5 in Figure 11 (a). 12 is a sectional view illustrating a state after fastening. 13 is a sectional view along the line S6-S6 in Figure 11 (a). 14 shows a sectional view illustrating a state after the rotation of the connecting member and the photosensitive drum 90 degrees with respect to the state in Figure 13. 15 shows a perspective view illustrating a state of the drum shaft and the coupling member when combined. Figure 15 (a1) - (a5) are front views, when viewed in the axial direction of the photosensitive drum, and Figure 15 (b1) - (b5) - perspective views. 16 is a perspective view illustrating a state where the coupling member is inclined in the process cartridge.
As shown in Figure 15, the connecting member 150 is mounted so that the axis L2 can deflect in any direction relative to the axis L1 of the drum shaft 153 (coaxial with the photosensitive drum 107).
Figure 15 (a1) and 15 (b1), the axis L2 the coupling member 150 coincides with the axis L1 of the shaft 153 of the drum. Condition when the connecting member 150 is deviated from said condition, shown in Figure 15 (a2) and (b2). As shown in this figure, the coupling member tilt toward the opening side of the hole 150g 150g moves along the pin 155. As a result, the connecting member 150 deviates around the axis AX perpendicular to the axis of the pin 155.
Figure 15 (a3) and (b3) shows the state where the coupling member 150 is deflected to the right. As shown in this figure, when tilting the coupling member 150 in the orthogonal direction relative to the opening 150g, 150g aperture rotates around pin 155. The axis of rotation is the axis line AY pin 155.
Condition, when the connecting member 150 is deflected downward, shown in Figure 15 (a4) and (b4), a condition where the connecting member 150 is deflected to the left, shown in Figure 15 (a5) and (b5). The axes of rotation AX and AY have been described previously.
In directions other than the direction of inclination, as previously described, for example, in the direction of 45 degrees in Figure 15 (a1) and the like, the inclination is made by combining the rotations about the axes AX and AY. Thus, the axis L2 is pivotable in any direction relative to the axis L1.
In particular, the transmitting surface 150h (the portion transmitting rotational force) can move relative to the pin 155 (the portion which receives the rotational force). Pin 155 has the transmitting surface 150 that provides the ability to move. Transmitting surface 150h and the pin 155 engages with each other in the direction of rotation of the coupling member 150. In this way, the connecting member 150 is mounted in the cartridge. To accomplish this, between the transmitting surface 150h and the pin 155 is provided a gap. Due to this coupling member 150 may be pivotally rotated in practically all directions about the axis L1. As described above, the opening 150g extends in the direction (the direction of the axis of rotation of the coupling member 150) intersecting at least with the direction of projection of fingers 155. Thus, as previously described, the connecting member may be pivotally rotated in all directions.
It was mentioned that the axis L2 can be inclined in any direction relative to the axis L1. However, not necessary that the axis L2 can linearly diverge at a predetermined angle around the 360-degree range of directions in the connector housing 150. For example, the opening 150g can be made slightly wider in the circumferential direction. Hence, during the inclination of the axis L2 relative to the axis L1, even in the case where the linear deviation is impossible at a predetermined angle, the coupling member 150 is still able to turn to a limited extent relative to the axis L2. Thus, there may be provided a predetermined tilt angle. In other words, it is possible to properly choose the amount of free play in the direction of rotation of holes 150g, if necessary.
In this way, the coupling member 150 can pivot or deflect substantially the entire circumference of the drum 153 relative to the shaft (element-receiving rotational force). In particular, connecting member 150 may be pivotally rotated substantially the entire circumference of the drum 153 relative to the shaft.
Furthermore, as is clear from the foregoing explanation, the coupling member 150 is capable of circular movement, substantially along the circumference of the shaft 153 of the drum. Said circular movement is not relevant to the motion associated with the rotation of the connecting element around the axis L2; simply inclined axis L2 rotates about the axis L1 of the photosensitive drum, wherein said turning here prevents rotation of the coupling element itself relative to the axis L2 the coupling member 150.
Next, a process of assembling said parts.
First the photosensitive drum 107 in the direction X1 in Figure 11 (a) and 11 (b). At this point, the support portion 151d of the flange 151 is virtually coaxially engaged with the centering portion 118h of the second frame 118. This provides substantially coaxial clutch support hole 152a (Figure 7 depicting the flange 152a) with the centering portion 118g of the second frame 118.
Drum grounding shaft 154 is inserted into the direction X2. The centering portion 154b passes through the support hole 152a (Figure 6 (b)) and the centering hole 118g (Figure 10 (b)). At this time, the centering portion 154b and the supporting hole 152a are supported so that the photosensitive drum 107 can be rotated. On the other hand, the centering portion 154b and the centering hole 118g are supported in fixed state by means of a press fit, etc. In this way, the photosensitive drum 107 is rotatably supported by the second frame. In an alternative embodiment, the fixation is possible without the possibility of rotation relative to the flange 152 and the shaft 154, the drum grounding (centering portion 154b) may be mounted to the second frame 118 to rotate.
The connecting member 150 and support member 157 is inserted in the direction X3. First, the front relative to the direction X3 driving portion 150b is inserted, maintaining parallelism of the axis L2 (11c) and X3. At this time, the phase of the pin 155 and hole 150g phase coincide with each other, and the pin 150 is inserted into the hole 150g1 and 150g2. The free end portion 153b of the drum shaft 153 is inclined to the drum bearing surface 150i. Free end portion 153b is a spherical surface and the drum bearing surface 150i is a conical surface. That is, the conical bearing surface 150i of the drum, which is a recess and the free end portion 153b of the drum shaft 153, which is the projection contact one another. Thus, the driving portion 150b side is positioned relative to the free end portion 153b. As previously described, during rotation of the coupling member 150 by transmitting the rotational force from the apparatus main assembly A at the pin 155 located in opening 150g, the pressure will be provided by the surfaces 150h1 and 150h2 (portion transmitting rotational force) (Figure 8b). Due to this rotational force is transmitted to the photosensitive drum 107. Further, the direction X3 engaging portion 157d is inserted. Due to this part of the connecting member 150 included in the spatial part 157b. The engaging portion 157d supports the bearing portion 151d of the flange 151, so that the photosensitive drum 107 can be rotated. Wherein the engaging portion 157d engages with the centering portion 118h of the second frame 118. The adjacent surface 157f of the support member 157 is adjacent to the inclined surface 118g of the second frame 118. Through holes 157g1 and 157g2 are screws 158a, 158b, which are fixed in the screw holes 118k1, 118k2 a second frame 118, so that the support member 157 is fixed to the second frame 118 (Figure 12).
The following describes the size of various parts of the connecting member 150. As shown in Figure 11 (c), the maximum outer diameter of the driven portion 150a is ⌀D2 the maximum outer diameter of the driving part 150b is ⌀D1, and the small diameter receiving hole 150G is ⌀D3. In addition, a maximum outer diameter of the pin 155 is ⌀D5, and an inner diameter of the retaining rib 157e of the support member 157 is ⌀D4. Here, the maximum outer diameter is the outer diameter of the largest rotation trajectory around the axis L1 and the axis L2. At the same time, since the inequality is satisfied ⌀D5 <⌀D3, connecting member 150 may be assembled at a predetermined position by performing direct mounting in the direction X3, and build quality is high (the state after assembly shown in Figure 12). The diameter of the inner surface ⌀D4 retaining rib 17e of the support member 157 is greater than the diameter ⌀D2 connecting member 150, and smaller than the diameter ⌀D1 (⌀D2 <⌀D4 <⌀D1). Due to this assembly of the support member 157 at a predetermined position to perform sufficient fixation directly in the direction X3. For this reason, quality can be improved assembly (state after assembly shown in Figure 12).
As shown in Figure 12, the retaining edge 157e of the support member 157 is located next to the flange portion 150j of the connecting member 150 in the direction of the axis L1. In particular, in a direction away from the axis L1 of the end surface 150j1 of the flange portion 150j to the axis L4 of the pin 155 n1. Furthermore, the distance from the end surface 157e1 rib 157e to the other end surface 157j2 of the flange portion 150j is n2. For these distances satisfies the inequality n2 <n1.
In the direction perpendicular to the axis L1, the flange portion 150j is located and a rib 157e so that they overlap each other. In particular, the distance n4 from the inner surface 157e3 rib 157e to the outer surface 150j3 of the flange portion 150j is the overlap value n4 with respect to the orthogonal direction of the axis L1.
Thanks to these relations mounting pin 155 is prevented from disengaging from the hole 150g. That is, the movement of the connecting element 150 is limited to the supporting member 157. Thus, the coupling member 150 is not disengaged from the cartridge. Preventing disengagement can be provided without additional parts. The above sizes are desirable in terms of reducing the cost of manufacture and assembly. However, the present invention is not limited to these dimensions.
As described above (Figure 10 (c) and 13), the receiving surface 150i, 150q which is a connecting member recess 150 is in contact with the free end surface 153b of the drum shaft 153, which is a projection. Therefore, the coupling member 150 is rotated along the free end portion (spherical surface) 153b about the center P2 of the free end portion 153b (the spherical surface); in other words, the axis L2 can actually pivotally rotated in all directions irrespective of the phase of the shaft 153 of the drum. The axis L2 of the connecting member 150 may be pivotally rotated in virtually all directions. As will be described later, the connecting member 150 could pull the clutch with the drive shaft 180, the axis L2 immediately before the clutch to be tilted forward in the mounting direction of the cartridge B relative to the axis L1. In other words, as shown in Figure 16, the axis L2 is inclined so that the driven portion 150a is in front with respect to the installation direction X4 relative to the axis L1 of the photosensitive drum 107 (the drum shaft 153). Figure 16 (a) - (c), although the position of the driven portion 150a slightly differ from each other, they are in any case situated in front with respect to the cartridge mounting direction X4.
The following is a more detailed description.
As shown in Figure 12, a distance n3 between a part with a maximum outside diameter of the support member 157 and the drive portion 150b is selected so that between them was provided with a small gap. Due to this, as described above, the connecting member 150 may be pivotally rotated.
As shown in Figure 9, the rib 157e is semicircular. The rib 157e is in front with respect to the cartridge mounting direction X4 B. Thus, as shown in Figure 10 (c), the driven portion 150a side of the axis L2 has great potential pivotally rotated in the direction X4. In other words, the driving portion 150b side of the axis L2 has great potential pivotally rotated in the direction of the angle α3 with the phase (Figure 9 (a)) that does not coincide with the phase of arrangement of the ribs 157e. Figure 10 (c) shows a state where the axis L2 rejected. In addition, it may also be pivotally rotated from the state of the inclined axis L2, shown in Figure 10 (c), in a state substantially parallel to the axis L1 (as shown in Figure 13). In this way, provided the desired location ribs 157e. Due to this coupling member 150 can be installed on the cartridge in a simple manner. Furthermore, since the axis L2 can be pivotally rotated relative to the axis L1, no matter how a phase angle stop shaft 153 of the drum. Said ribs is not limited to the edge with a semi-circle shape. As soon as the coupling member 150 may be pivotally rotated in a predetermined direction and the connecting member 150 can be set in the cartridge B (photosensitive drum 107), any suitable edge. In this way, the edge 157e acts as the adjustment means to adjust the direction of inclination of the connecting member 150.
The distance n2 (Figure 12) in the direction of the axis L1 of the rib 157e to the flange portion 150j is shorter than the length n1 from the center pin 155 to the edge on the side of the drive portion 150b. Because of this the pin 155 does not lose contact with the hole 150g.
As described above, the connecting member 150 is substantially supported by the drum shaft 153 and support drum 157. In particular, the coupling member 150 is mounted on the cartridge B is virtually the drum shaft 153 and support drum 157.
The connecting member 150 has a play (the distance n2) in the direction of the axis L1 relative to the shaft 153 of the drum. Consequently, the receiving surface 150i (conic surface) may loose contact with the free end portion 153b of the drum shaft (spherical surface). In other words, the center of the pivoting may deviate from the center of curvature P2 of the spherical surface. However, even in such a case, the axis L2 can be pivotally rotated relative to the axis L1. For this reason, the goal can be achieved this embodiment.
In addition, maximum possible inclination angle of α4 (Figure 10 (c)) between the axis L1 and the axis L2 is half the cone angle (α1, 8 (f)) between the axis L2 and the receiving surface 150i. The receiving surface 150i has conical shape and the drum shaft 153 has a cylindrical shape. For this reason, a gap is provided therebetween g angle α1 / 2. Due to this taper angle α1 varies, and therefore, the angle α4 of the connecting member 150 is set to the optimum value. In this way, since the receiving surface 150i is a conical surface portion 153a of the drum shaft 153 has a simple cylindrical shape. In other words, the drum shaft does not need to have a complicated configuration. Thus, the cost can be reduced to the processing of the drum shaft.
Also, as shown in Figure 10 (c), when a deviation of the connecting member 150 of the connecting element can enter a space portion 151e (the hatched portion of the flange 151). Through this it can be effectively used lightweight cavity (space portion 151e) portion of the gear 151c. Therefore, there can be provided an effective use of space. Incidentally, lightweight cavity (space portion 151e) is not commonly used.
As described above, in the embodiment of Figure 10 (c), the coupling member 150 is set so that it can often take a position which overlaps the gear portion 151c in the direction of the axis L2. In the case where the flange has a gear portion 151c, the connecting element 150 can further enter into the cylinder 107a.
When the axis is tilted L2, width of the opening 150g is selected based on the size of the pin 155 so that the pin 155 does not represent an obstacle.
In particular, the transmitting surface 150h (the portion transmitting rotational force) can move relative to the pin 155 (the portion which receives the rotational force). Pin 155 has the transmitting surface 150 that provides the ability to move. Transmitting surface 150h and the pin 155 are engaged with each other in the direction of rotation of the coupling member 150. In this way, the connecting member 150 is mounted on the cartridge. To accomplish this, between the transmitting surface 150h and the pin 155 is provided a gap. Due to this coupling member 150 may be pivotally rotated substantially in all directions relative to the axis L1.
The locations of the flange portion 150j is tilted driven portion 150a in the direction X5 shown as area T1 in Figure 14. As shown in Figure 14, even when tilting the coupling member 150 do not occur interference with finger movements 155, and therefore, the flange portion 150j may be provided on the entire circumference of the coupling member 150 (Figure 8 (b)). In other words, the surface 150i, the receiving shaft has a conical shape, and therefore the inclination of the connecting member 150 the pin 155 is not included in the area T1. For this reason, the region is minimized disruption of the connecting member 150. Consequently, it can be ensured the rigidity of the connecting member 150.
In the above process, the process of mounting the coupling member (not drive side) in the direction X2 and the process (the driving side) in the direction X3 may be exchanged.
It was stated that the support member 157 is fixed by screws to the second frame 118. However, the present invention is not limited to these examples. Any suitable method, such as bonding, if with it the support element 157 can be fixed to the second frame 118.
(8) drive shaft and driving structure of the main assembly device
Next, referring to Figure 17 describes the construction of the photosensitive drum 107 in the main assembly A of the device. 17a is a perspective partial sectional view of the driving side of the side plate in a state where the cartridge B is not mounted to the main assembly A of the device. Figure 17 (b) is a perspective view illustrating the construction of the drum drive only. Figure 17 (c) is a sectional view along the line S7-S7 of Figure 17 (b).
The drive shaft 180 has substantially the same structure as the above described drum shaft 153. In other words, its free end portion 180b forms a hemispherical surface. It also has passing substantially through the center finger 182 that transmits rotational force, as part of, the rotational force is applied, the main body 180a is cylindrical in shape. The rotational force is transmitted to the connecting element 150 to point the finger 182.
On the opposite longitudinal side of the free end portion 180b of drive shaft 180 provides the driving gear 181 of the drum, the axis of which substantially coincides with the axis of the drive shaft 180. The gear 181 is fixed non-rotatably relative to the drive shaft 180. Consequently, rotation of the pinion 181 also rotates the drive shaft 180.
In addition, the gear 181 is meshed with the small gear 187 to receive a rotational force from the motor 186. Thus, rotation of the motor 186 causes rotation of the drive shaft 180 through the gear 181.
Also, the gear 181 is rotatably mounted on the apparatus main assembly A by supporting elements 183, 184. The gear 181 can not move at this time with respect to the axial direction L3 of the drive shaft 180, that is, it is positioned with respect to the axial direction L3. Consequently, the pinion 181 and the support members 183 and 184 may be located close to each other with respect to the axial direction. Thus the drive shaft 180 does not move in the direction of the axis L3. Consequently, the drive shaft 180 and the clearance between the support members 183 and 184 are sized to allow rotation of the drive shaft 180. For this reason, the position of gear 181 with respect to the diametrical direction relative to the pinion 187 is set properly.
While there, it was stated that the movement is directly transmitted to the pinion gear 181 from 187, the present invention is not limited to these examples. For example, it is possible to use a plurality of gears by positioning the motor on the main assembly A of the device. In an alternative embodiment, the rotational force can be transmitted to a belt, etc.
(9) mounting rails on the side of the main assembly for guiding the cartridge B
As shown in Figures 18 and 19, the mounting means 130 of this embodiment includes the guides 130R1, 130R2, 130L1, 130L2, provided in the main assembly A of the device.
These guides are provided opposite one another on both side surfaces of the cartridge mounting space (the part 130a cartridge mounting) provided in the apparatus main assembly A (the driving side surface in Figure 18) (the side surface 19, which is not driven) . Guides 130R1, 130R2 of the main assembly provided in the main assembly opposite the driving side of the cartridge B, where they act along the mounting direction of the cartridge B. On the other hand, the guide 130L1, 130L2 are provided on the main assembly side of the main unit opposite to the driving side of the cartridge is not in, and they act in the mounting direction of the cartridge B. guides 130R1, 130R2 and the main assembly guides 130L1, 130L2 main body face each other. During installation of the cartridge B on the apparatus main assembly A these guides 130R1, 130R2, 130L1, 130L2 guide the cartridge guides as will be described below. During installation of the cartridge B in the apparatus main assembly A the cartridge door 109 which can be opened and closed by turning the shaft 109a relative to the main assembly of the apparatus A is open. Installing cartridge B in the apparatus main assembly A is completed closing door 109. At the time of removal of the cartridge B from the apparatus main assembly A door 109 is closed. These operations are initiated by the user.
(10) the positioning portion for the cartridge B, associated with a mounting guide and apparatus main assembly A
As shown in Figures 2 and 3, in this embodiment, the outer periphery 157a of the outer end of the support member 157 also functions as a cartridge guide 140R1. Wherein the outer periphery 154 of the outer end of the drum grounding shaft 154 also functions as a cartridge guide 140L1.
In addition, one longitudinal end (drive side) of the second unit frame 120 is provided with the cartridge guide 140R2 on the upper portion of the guide 140R1 of the cartridge. The other end (not drive side) in the longitudinal direction is provided with the cartridge guide 140L2 on the upper portion of the cartridge guide 140L1.
In particular, one longitudinal end of the photosensitive drum 107 is provided with lateral guides 140R1, 140R2 cartridge outwardly from the cartridge frame B1. The other end in the longitudinal direction is provided with lateral guides 140L1, 140L2 of the cartridge outwardly from the cartridge frame B1. Guides 140R1, 140R2, 140L1, 140L2 extend outwardly in said longitudinal direction. In particular, the guides 140R1, 140R2, 140L1, 140L2 project from the cartridge frame B1 along the axis L1. During installation of the cartridge B in the apparatus A main assembly and during removal of the cartridge B from the apparatus main assembly A the guide rail guides 140R1 130R1, 140R2 and the guide rail guides 130R2. During installation of the cartridge B in the apparatus A main assembly and during removal of the cartridge B from the apparatus main assembly A the guide 140L1 guided by the guide 130L1, 140L2 and the guide 130L2 guided by the guide. In this way, the cartridge B is installed in the apparatus main assembly A, moving in a direction substantially perpendicular to the axial direction L3 of the main shaft 180, and similarly removed from the apparatus main assembly A. In this embodiment, the guides 140R1, 140R2 cartridge molded from the second frame 118 as a whole. However, as guides 140R1, 140R2 individual elements can be used.
(11) The installation of the process cartridge
Next, referring to Figure 20 describes the operation of mounting the cartridge B into the apparatus A main assembly. 20 shows the installation process. 20 is a sectional view taken along a line S9-S9 in Figure 18.
As shown in Figure 20 (a), the door 109 is opened by the user. Cartridge B is removably installed in the cartridge mounting means 130 (the installation section 130a) provided in the main assembly A of the device.
During the installation of the cartridge in the main assembly A device on the drive side guides 140R1, 140R2 are moving along the cartridge guide 130R1, 130R2 of the main assembly, as shown in Figure 20 (b). On non drive side guides 140L1, 140L2 of the cartridge (3) moving along the guides 130L1, 130L2 main assembly (19).
When the cartridge B inserted further in the direction of arrow X4 connection is established between the drive shaft 180 and cartridge B, and then the cartridge B is set in a predetermined position (the installation section 130a). In other words, as shown in Figure 20 (c), the cartridge guide 140R1 contacts to positioning portion 130R1a of the guide 130R1 of the main assembly and the cartridge guide 140R2 contacts to positioning portion 130R2a of the guide 130R2 of the main assembly. In addition, the cartridge guide 140L1 contacts to the positioning portion 130L1a (19) of the guide 130L1 of the main assembly and the cartridge guide 140L2 contacts to the positioning portion 130L2a of the main assembly guide 130L2, and since this state is essentially symmetrical illustration is not provided for it. Thus, the cartridge B is installed into the insertion section 130a of the mounting means 130 with the possibility of removal. In particular, the cartridge B is set in a state where it is in the main assembly A of the device. In a state in which the cartridge B is installed in the installation section 130a, the drive shaft 180 and coupling member 150 are in a state of coupling with one another.
In particular, the coupling member 150 is in an angular position to provide the transfer of rotational force, as will be described below.
The cartridge, when installed in the mounting portion 130a provides the ability to perform the image forming operation.
By providing a predetermined position in the cartridge of the 140R1b, which is a pressure sensor (2) on the cartridge B receives force pushing against the urging spring 188R (18, 19 and Figure 20). Also part 140L1b, which is a pressure sensor (3) on the cartridge B receives force pushing. Due to the cartridge B (photosensitive drum 107) is correctly positioned relative to the transfer roller, the optical means, etc. A main body of the device.
The user may enter the cartridge B to the mounting portion 130a as described above. Alternatively, the user inserts the cartridge in half, and the subsequent mounting operation can be performed by other means. For example, when using the door closing operation of the door 109 acts on the cartridge B which is in poluvstavlennom position, pushing the cartridge into its final installation position. In a further alternative embodiment, the user presses the middle portion of the cartridge B, which causes it to fall into the mounting portion 130a by its own weight.
As shown in Figure 18-20, attaching the cartridge B in the apparatus A main assembly, and its removal is performed by moving in a direction substantially perpendicular to the axis L3 of the drive shaft 180 (Figure 21) in accordance with said operations; wherein the drive shaft 180 and the connecting member 150 move from the state of the clutch disengagement state.
Further it is disclosed, the term "substantially perpendicular".
For smooth installation and removal of the cartridge in between the cartridge B and the main assembly A device includes small gaps. In particular, small gaps are provided between the guide 140R1 and the guide 130R1 in the longitudinal direction, between the guide 140R2 and the guide 130R2 in the longitudinal direction between the guide 140L1 and the guide 130L1 in the longitudinal direction, and between the guide 140L2 and the guide 130L2 in the longitudinal direction. Thus, during the installation and removal of the cartridge B from the apparatus main assembly A whole cartridge B can slightly bend within said gap. For this reason, the squareness is not strict. However, even in this case, the present invention achieves its results. Thus, the term "substantially perpendicular" includes a case where the cartridge slightly slanted.
(12) The operations of the clutch coupling element and the transmission of the rotational motion
As stated earlier, immediately prior to or substantially simultaneously with positioning in a predetermined position of the main assembly A of the coupling device 150 carries out the clutch member with the drive shaft 180. In particular, the coupling member 150 takes the angular position permitting transmission of rotational force. Here, at a predetermined position means a mounting portion 130a. Next, referring to Figure 21, 22 and 23, an operation of said clutch coupling element. 21 is a perspective view illustrating a main portion of the drive shaft and the drive side of the cartridge. Figure 22 is a longitudinal sectional view from the bottom of the main assembly of the apparatus. Figure 23 also shows a longitudinal sectional view from the bottom of the main assembly of the apparatus. Here, the term "coupling" means the state in which the axis L2 and the axis L3 actually coincide with each other, and can transmit rotational motion. As shown in Figure 22, the cartridge B is installed in the apparatus main assembly A in the direction (arrow X4) substantially perpendicular to the axis L3 of the drive shaft 180. The same holds when removing the cartridge from the main assembly A of the device. The angular position of the pre-coupling axis L2 (22a) of the coupling member 150 deviates from the direction of advance of installation and X4 from the axis L1 (Figure 22 (a)) of the drum shaft 153 (Figure 21 (a) and 22 (a) ).
In order to reject in advance the coupling member to an angular position prior clutch is used as an example of the structure of Embodiment 3-9, which will be described below.
Due to the inclination of the connecting member 150 is a free end 150A1 located ahead with respect to the cartridge mounting direction X4 is closer to the photosensitive drum 107 than the free end 180b3 of the drive shaft in the direction of the axis L1. Further, the upper free end 150A2 in the cartridge mounting direction is closer to the finger 182 than the free end 180b3 of the drive shaft (Figure 22 (a), (b)). Here, the free end position is the position nearest to the drive shaft of the driven portion 150a shown in Figure 8 (a) and (c), in the direction of the axis L2, and is the position farthest from the axis L2. In other words, this end of the driven portion 150a of the connecting member 150 or end of the protrusion 150d, depending on the phase of rotation of the connecting member 150 (150A) in Figure 8 (a) and (c).
The free end of the connecting member 150 in position 150A1 passes by the free end 180b3 of the drive shaft. After passing through the connecting member 150 by the free end 180b3 of the drive shaft receiving surface 150f (the contact portion on the cartridge) or the projection 150d (contact portion on cartridge side) in contact with the free end portion 180b of the drive shaft 180 (engaging portion on main assembly side) or finger 182 (engaging portion on main assembly side) (one part, the rotational force is applied). In accordance with the operation of mounting the cartridge (B), the axis L2 is deflected so that it could actually coincide with the axis L1 (Figure 22 (c)). When the coupling member 150 deviates from the angular position of said clutch and its preliminary axis L2, substantially aligned on the axis L1, is achieved by the angular position permitting transmission of rotational force. Finally, set the position of the cartridge B relative to the main assembly (A) of the device. At this point, drive shaft 180 and the drum shaft 153 are substantially coaxial. Thus the receiving surface 150f turns against the spherical free end portion 180b of the drive shaft 180. This state is a state of coupling the coupling member 150 and the drive shaft 180 (Figure 21 (b) and 22 (d)). At this point, pin 155 (not shown) falls into a hole 150g (Figure 8 (b)). In other words, the finger receiving portion 182 takes 150k. Here, the coupling member 150 covers the free end portion 180b.
Receiving surface 150f forms a recess 150z. Deepening 150z has a conical shape.
As described above, the connecting member 150 may be pivotally rotated about the axis L1. In accordance with the movement of the cartridge (B) of the connecting element 150 (the receiving surface 150f and / or 150d of projections) which is a contact portion on the cartridge side is in contact with the engaging portion on the main assembly (drive shaft 180 and / or the finger 182). Due to this rotation is initiated by the coupling member 150. As shown in Figure 22, the coupling member 150 is set to overlap with the drive shaft 180 in the direction of the axis L1. However, the connecting member 150 and drive shaft 180 are engaged with each other in the overlapping state through pivoting connecting members as described above.
The above-described mounting operation the coupling member 150 can be performed regardless of the phases of the drive shaft 180 and the connecting member 150. Further details are described by Figures 15 and 23. Figure 23 shows the phase relationship between the coupling member and the drive shaft. Figure 23 (a), is in front with respect to the direction X4 of the cartridge mounting, the finger 182 and receiving surface 150f are positioned against each other. Figure 23 (b) are against each other the finger 182 and the projection 150d. Figure 23 (c) against each other are the free end portion 180b and the projection 150d. Figure 23 (d) against each other are the free end portion 180b and the receiving surface 150f.
As shown in Figure 15, the connecting member 150 is pivotable mounted in any direction relative to the shaft 153 of the drum. In particular, connecting member 150 can rotate. Therefore, as shown in Figure 23, it can be deflected in the direction X4 of the cartridge mounting regardless of the phase of the drum shaft 153 with respect to cartridge mounting direction X4 (V). The angle of deviation of the coupling member 150 is set so that, irrespective of the phase of the drive shaft 180 and coupling member 150, the free end position 150A1 is nearer to the photosensitive drum 107 than the axial free end 180b3 in the direction of the axis L1. Also, the angle of inclination of the connecting member 150 is set so that the free end portion 150A2 is nearer to the finger 182 than the axial free end 180b3. With this setting, in accordance with the operation of mounting the cartridge (B) the axial free end 180b3 passes by the free end portion 150A1 toward X4 installation. In the case shown in Figure 23 (a), the receiving surface 150f contacts the finger 182. In the case shown in Figure 23 (b), the protrusion (engaging portion) 150d contacts the finger 182 (one part, the rotational force is applied). In the case shown in Figure 23 (c), the projection 150d contacts with the free end portion 180b. In the case shown in Figure 23 (d), the receiving surface 150f contacts the free end portion 180b. Furthermore, under the action of contact forces generated during installation of the cartridge (B), the axis L2 the coupling member 150 is moved so that it substantially coincides with the axis L1. Due to this connecting member 150 is interlocked with the drive shaft 180. Specifically, recess 150z coupling member includes a free end portion 180b. For this reason, the connecting member 150 may enter into engagement with the drive shaft 180 (finger 182) regardless of the phase of the drive shaft 180, the coupling member 150 and the shaft 153 of the drum.
As shown in Figure 22, between the drum shaft 153 and the connecting member 150 is provided a gap, so that the connecting member has the ability to deviate (hinge pivot and rotate).
In this embodiment, the connecting member 150 is moved in the plane of the drawing sheet in Figure 22. However, the coupling member 150 of the present embodiment is able to perform a circular movement, as described above. Therefore, the movement of the connecting member 150 may include motion not in the plane of the drawing sheet in Figure 22. In this case, there is a transition from the state shown in Figure 22 (a) to the state shown in Figure 22 (d). This applies to embodiments that will be described below, unless otherwise stated.
Next, with reference to Figure 24 will be described operation of transmitting a rotational force during the rotation of the photosensitive drum 107. The drive shaft 180 rotates together with the gear 181 in the direction X8 under the action of the rotational force received from the source of rotary motion (motor 186). Finger 182, which is an integral part of the drive shaft 180 (182a1, 182a2), is in contact with any of the surface that receives the rotational force (the portion which receives the rotational force) 150e1-150e4. In particular, the pin 182a1 contacts with any one of the surfaces 150e1-150e4, sensing the rotational force. Also finger 182a2 is also in touch with some other of the surfaces 150e1-150e4, sensing the rotational force. Due to this rotational force of the drive shaft 180 is transmitted to the connecting member 150 to rotate. Furthermore, due to the rotation of the connecting member 150 or surface 150h1 150h2 connecting member 150, transmitting rotational force to finger contact 155, which is part of shaft 153 of the drum. Due to this rotational force of the drive shaft 180 is transmitted to the photosensitive drum 107 through the connecting member 150, the surface 150h1 and 150h2 transmit a rotational force, the pin 155, the drum shaft 153 and the flange 151 of the drum. Thus it is ensured by the rotation of the photosensitive drum 197.
The angular position capable of transmitting rotational force, the free end portion 153b in contact with the receiving surface 150i. The free end portion (positioning portion) 180b of the drive shaft 180 is in contact with the receiving surface (positioning portion) 150f. Due to this coupling member 150 is positioned relative to the drive shaft 180 in a state where it covers the drive shaft 180 (Figure 22 (d)).
In this embodiment, even if the axis L3 and the axis L1 deviate from several coaxial arrangement, the connecting member 150 can provide for the transfer of rotational force, since the connecting member 150 is deflected slightly. Even in this case, the connecting member 150 can rotate without transmitting extra large load on the shaft of the drum 153 and drive shaft 180. Thus, the arrangement is easily achieved precision of the drive shaft 180 and the drum shaft 153 during assembly. For this reason, the efficiency can be improved assembly.
This is also one of the positive results of the invention.
17, as described above, drive shaft 180 and gear 181 are positioned in the diametrical direction and the axial direction in the predetermined position (mounting portion 130a) of the main assembly (A) of the device. Furthermore, the cartridge (B) is set at a predetermined position of the apparatus main assembly as described above. The drive shaft 180 positioned in said predetermined position and the cartridge (B) is positioned in said predetermined position, connect the connecting member 150. The connecting member 150 may deviate (pivotally rotated) relative to the photosensitive drum 107. For this reason, as described above, connecting member 150 can transmit the rotational force smoothly between the drive shaft 180 positioned in a predetermined position and the cartridge (B) positioned at a predetermined position. In other words, even if there is some axial deviation between the drive shaft 180 and the photosensitive shaft 107, the coupling member 150 can smoothly transmit the rotational force.
It is also one of the positive results of this option.
Furthermore, as op isano above, the cartridge (B) is positioned at a predetermined position. For this reason, the photosensitive drum which is an integral part of the cartridge (B) is properly positioned relative to the main assembly (A) of the device. Consequently, it can be maintained with high accuracy spatial relationship between the photosensitive drum 107 and the optical means 101, the transfer roller 104 or recording material 102. In other words, said positional deviations can be reduced.
The connecting member 150 is in contact with the drive shaft 180. Because of this, although it was mentioned that the coupling member 150 deviates from the angular position of the clutch prior to the angular position permitting transmission of a rotational force, the present invention is not limited to this example. For example, the abutting portion may be provided in the form of the engaging portion on the main assembly, at a position not connected to the drive shaft of the main assembly of the device. In the process of mounting the cartridge (B), after the free end portion 150A1 passed by the free end 180b3 of the drive shaft, the connecting element 150 (the contact portion on cartridge side) in contact with said abutting portion. Due to this coupling element may take the force in the direction where it is bent (the direction of the hinge deviation) and the deviation may be such that the axis L2 practically coincides with the axis L3 (the pivoting). In other words, enough to have another means if the axis L1 may actually coincide with the axis of L3 in connection with the installation of the cartridge (B).
(13) Operation disengage the connecting member and the cartridge removal operation
Next, with reference to Figure 25 will be described operation of disengaging the coupling member 150 from the drive shaft 180 during removal of the cartridge (B) from the main assembly (A) of the device.
Figure 25 is a longitudinal sectional view from the bottom of the main assembly of the apparatus.
First, a position of the finger 182 during removal of the cartridge (B). Upon completion of imaging, as is apparent from the foregoing description, the pin 182 is located in either of the two receiving portions 150k1-150k4 (8). Finger 155 is located in the hole 150g1 and 150g2.
Description of operation performed with respect to the connecting member 150 disengage from the driving shaft 180 in connection with the operation of removal of the cartridge (B). As shown in Figure 25, the cartridge (B) is removed in the direction (direction of the arrow X6), substantially perpendicular to the axis L3, at the time of its removal from the main assembly (A) of the device.
In the state of stopping the drive shaft 153 of the drum axis L2, is substantially coincident with the axis L1 in the connecting member 150 (the angular position permitting transmission of rotational force) (Figure 25 (a)). The shaft 153 of the drum moves in the direction X6 removing the cartridge with the cartridge (B) and the receiving surface 150f or the projection 150d in the connecting member 150 located behind relative to the direction of removal of the cartridge, in contact with at least a free end portion 180b of the drive shaft 180 (FIG. 25 (a)). The axis L2 begins to deviate upward relative to the cartridge removal X6 (Figure 25 (b)). This direction coincides with the direction of deflection of the connecting element during mounting of the cartridge (B) (the angular position prior clutch). It moves, while when the free end portion 150A3, located behind with respect to the removal direction X6 of the cartridge, in contact with the free end portion 180b as a result of the deletion of the cartridge from the main assembly (A) of the device. In more detail, in accordance with the movement in a removing direction of the cartridge (B), the coupling element moves when the connecting element 150 (the receiving surface 150f and / or 150d of projections) which is a contact portion on the cartridge side is in contact with the engaging portion on side of the main unit (drive shaft 180 and / or the finger 182). Axis L2 on the free end portion 150A3 is deflected to the free end 180b3 (disengaging angular position) (Figure 25 (c)). In this state, the drive shaft 180 passes the coupling element 150 is in contact with the free end 180b3, and is disengaged from the drive shaft 180 (Figure 25 (d)). Thereafter, with the cartridge (B) is carried out an operation opposite to the operation of its installation described in connection with Figure 2, and the cartridge is removed from the main assembly (A) of the device.
As apparent from the foregoing description, the angle corresponding to the angular position of the preliminary coupling, relative to the axis L1 is greater than the angle corresponding to the angular position of disengagement relative to the axis L1. The reason for this is that it is preferable that the free end portion 150A1 guaranteed to depart from the free end portion 180b3 in the pre-locked angular position in view of said dimensional tolerances of parts during coupling of the connecting element. In particular, it is preferable that between the coupling member 150 and the free end portion 180b3 gap existed in the prior angular position clutch (22 (b)). In contrast, during the disengagement of the connecting member axis L2 deflected in connection with the removal operation of the cartridge in the disengaging angular position. Therefore, the coupling member 150A3 moves along the free end portion 180b3. In other words, the upper part (with respect to the direction of removal of the cartridge) of the connection element and the free end of the drive shaft are located practically in the same position (Figure 15 (c)). For this reason, the angle corresponding to the angular position of the preliminary coupling, relative to the axis L1 is greater than the angle corresponding to the angular position of disengagement relative to the axis L1.
In addition, similarly to the case of mounting the cartridge (B) to the main assembly (A) of the device, the cartridge (B) can be removed independently of the phase difference between the coupling member 150 and the finger 182.
As shown in Figure 22, the angular position of the connecting member 150 providing a rotational force transmission angle relative to the axis L1 of the connecting member 150 is such that in a state where the cartridge (B) mounted in the main assembly (A) of the device, the connecting member 150 perceives rotational force transmitted from the drive shaft 180, and therefore rotates.
The angular position of the connecting member 150 providing a rotational force transmission, the rotational force for rotating the photosensitive drum is transferred to the drum.
Furthermore, the angular position of the coupling member 150 to provide initial adhesion, the angular position of the coupling member 150 relative to the axis L1 corresponds to the state immediately after the connecting member 150 performs clutch with the drive shaft 180 in the mounting operation of the cartridge (B) to the main assembly (A ) device. In particular, this corresponds to an angular position relative to axis L1, wherein the free end portion 150A1 of the connecting member 150 to the rear with respect to the cartridge mounting direction (B), can move away from the drive shaft 180.
The angular position of the coupling member 150, providing disengagement is the angular position of the coupling member 150 relative to the axis L1 during removal of the cartridge (B) from the main assembly (A) of the device when the coupling member 150 is disengaged from the drive shaft 180. Specifically, as shown in Figure 25, it corresponds to an angular position relative to axis L1, wherein the free end portion 150A3 of the connecting member 150 may move away from the drive shaft 180 in accordance with the direction of removal of the cartridge (B).
The angular position prior coupling or disengaging angular position, the angle "theta 2" between axes L1 and L2 is greater than the angle 'theta 1' between axes L1 and L2 in the angular position, the rotational force transmitting. Preferably, the angle 'theta 1' is equal to 0 degrees. However, in this embodiment, if the angle 'theta 1' is less than 15 degrees, it provides a smooth transmission of the rotational force. This is also one of the positive effects of the invention. With regard to the angle 'theta 2', then it is preferable to range from 20 to 60 degrees.
As described above, the connecting member may be pivotally mounted on the axis L1. The connecting member 150 in a state where it overlaps the drive shaft 180 in the direction of the axis L1, can be disengaged from the drive shaft 180, since the connecting member is deflected in accordance with the operation of removing the cartridge (B). In particular, due to movement of the cartridge (B) in a direction substantially perpendicular to the axial direction of the drive shaft 180, the connecting member 150 covering the drive shaft 180 may disengage from them.
In the above description, the receiving surface 150f of the connecting element 150 or the protrusion 150d contacts with the free end portion 180b (finger 182) in connection with the movement of the cartridge (B) in the direction X6 removal. Due to this, as has been described, the axis L1 starts to deviate upwards towards the removal of the cartridge. However, the present invention is not limited to this example. For example, in the construction of the coupling member 150 can foresee the possibility of pushing up in the removing direction of the cartridge. In accordance with the movement of the cartridge (B) is a force pushing initiates deflection axis L1 downward in the removal direction of the cartridge. The free end 150A3 passes by the free end 180b3, and the coupling member 150 is disengaged from the drive shaft 180. In other words, the receiving surface 150f, to the rear in relation to the direction of removal of the cartridge or a protrusion 150d is not in contact with the free end portion 180b, and therefore, may occur disengagement from the drive shaft 180. For this reason, it may be applied any design unless the axis L1 can vary due to the operation of removing the cartridge (B).
At the time immediately before the coupling member 150 is mounted to the drive shaft 180, the driven part of the coupling member 150 is deflected so that a downward inclination with respect to the cartridge mounting direction. In other words, the coupling member 150 moves in the advance state corresponding to the angular position of the prior couplings.
Above it was described the movement in the plane of the drawing sheet in Figure 25, but this movement can include a circular motion, as in the case shown in Figure 22.
With regard to an appropriate design, it may be any of those that will be described in the embodiment 2 and all subsequent ones.
Next, referring to Figure 26 and Figure 27 will be described another embodiment of the drum shaft. 26 is a perspective view of the surrounding shaft of the drum. 27 is a distinctive part.
In the above embodiment, the free end of the drum shaft 153 is formed as a spherical surface, and the connecting member 150 is in contact with its spherical surface. However, as shown in Figure 26 (a) and 27 (a), the free end 1153b of the drum shaft 1153 may have a flat surface. In this embodiment, the peripheral edge of the 1153s surface contact with the conical surface of the connecting member 150, thereby allowing the transmission of rotation. Even with such a structure able to guarantee the axis L2 relative to the axis L1 deviate. In this embodiment, there is no need to manufacture a spherical surface. Consequently, there may be reduced processing costs.
In the above embodiment, the drum shaft is mounted on another finger transmitting rotary motion. However, as shown in Figure 26 (b) and 27 (b), may be formed of the drum shaft 1253 and the pin 1253s as a whole. In the case of the use of integral injection molding opens wide possibilities of varying the geometric parameters. In this case finger 1253s can be formed with the drum shaft 1253 as a whole. For this reason, it may be provided with a wide area portion 1253d to transmit the driving force. Thus, the torque can be guaranteed to be transmitted to the drum shaft made of a resinous material. In addition, since integral molding is used, the processing costs are reduced.
As shown in Figure 26 (c) and 27 (c), the opposite ends 1355a1, 1355a2 finger 1355 that transmits the rotational force (element-receiving rotational force), are fixed in advance by means of compressed planting etc. a receiving hole 1350g1 and 1350g2 connecting element 1350. Thereafter, possible to insert the drum shaft 1353 which has a free end portion 1353s1, 1353s2 with concave slotted vents. At the same time, to permit rotation of the coupling member engaging portion 1350 1355b 1355 finger associated with a free end portion (not shown) of the drum shaft 1353 has a spherical shape. Thus, the pin 1355 (part exerts the rotational force) is fixed in advance. It can thereby be reduced hole size 1350g coupling element 1350. Therefore, the rigidity can be enhanced coupling element 1350.
Previously described structure, through which runs along the slope of the axis L1 of the free end of the drum. However, as shown in Figure 26 (d), 26 (e) and 27 (d), may be provided along the inclination of the contact surface 1457a of the contact member 1457 to 1453 of the shaft axis of the drum. In this case, the height of the free end surface 1453b of the drum shaft 1453 is comparable to the height of the end surface of the contact element 1457. In addition, the finger transmitting rotational force (element that accepts the rotational force) 1453s, advocates the free end surface 1453b, is introduced into the receiving opening of the connector 1450g Leg member 1450 contacts the surface 1453s 1450h, transmitting the rotational force (the portion transmitting rotational force) of the coupling member 1450. Because of this rotational force is transmitted to the drum 107. In this way, in the contact member 1457 is provided by the contact surface 1457a at the time of tilting of the connecting member 1450. Due to this direct processing drum shaft becomes not mandatory. Therefore, costs can be reduced for processing.
The spherical surface at the free end may also be a molded part of a single element of a resinous material. In this case, the cost can be reduced to the processing shaft. The reason for this is that the configuration can be simplified to the shaft to be processed by cutting, etc. Furthermore, when reducing the area of the spherical surface at the axial free end of the processing area can be reduced, which requires high degree of accuracy. This could lead to reduced processing costs.
Next, referring to Figure 28 describes another embodiment of the drive shaft. Figure 28 are perspective views of the drive shaft and the drum drive gear.
Firstly, as shown in Figure 28 (a), the free end of the drive shaft 1180 is formed with a flat surface 1180b. Due to this, since the configuration of the shaft is simplified, costs can be reduced for processing.
As shown in Figure 28 (b), part 1280 (1280s1, 1280s2) applying rotational force (the portion transmitting the driving force) to the drive shaft 1280, may be formed integrally. If the drive shaft 1280 is a part molded from a resinous material, the part applied rotational force, may be formed with it as a unit. Thus, it is possible to reduce costs. Said part with a flat surface is designated as 1280b.
Furthermore, as shown in Figure 28 (c), the area of the free end portion 1380b of the drive shaft 1380 is decreased. For this reason, the outer diameter of the free end of the 1380s the shaft can be made smaller than the outer diameter of the main part 1380a. As described above, the free end portion 1380b is to be made with a certain accuracy in order to accurately define the position of the connecting member 150. Consequently, the area of said spherical contact portion is limited only by the connecting member. Due to this part, distinct from the surface, requiring high precision finishing becomes unnecessary. In connection with this reduced processing costs. In addition, by analogy can be cut free end of the spherical surface is not required. The finger (of the applied rotational force) is designated as 1382.
Next, a method of positioning the photosensitive drum relative to the direction of the axis L1. In other words, the connecting member 1550 is provided with a tapered surface (inclined plane) 1550e, 1550h. Due to the rotation of the drive shaft 181 creates a force in the direction of thrust. Under the action of this pulling force holds the positioning member 1550 with respect to the connecting direction of the axis L1 and the photosensitive drum 107. With reference to Figure 29 and 30 is described in detail. 29 is a perspective view and a top view of the coupling member in isolation. 30 is an exploded perspective view illustrating the drive shaft, the drum shaft and the coupling member.
As shown in Figure 29 (b), the surface 1550e perceptible rotational force (the inclined plane) (the portion which receives the rotational force) is angled relative to the axis α5 L2. When the drive shaft 180 rotates in the direction T1, the finger 182 and surface 1550e perceptible rotational force in contact with each other. Then, to the connecting member 1550 in the direction T2, a component force is applied and moves in the direction T2. The connecting member 1550 is intermixed in the axial direction, until the surface 1550f, receives force of the drive shaft (30A) contacts the free end 180b of the drive shaft 180. This sets the position of the connecting member 1550 with respect to the direction of the axis L2. When the free end 180b of the drive shaft 180 has a spherical surface and the receiving surface 1550f has a conical surface. Thus, in regard to the direction perpendicular to the axis L2, the position defined relative to the driven portion 1550a of the drive shaft 180. When the coupling member 1550 is mounted on the drum 107, the drum 107 also moves in the axial direction depending on the amount of force which is added in the direction T2. In this case, with respect to the longitudinal direction of the predetermined position of the drum 107 relative to the main assembly of the apparatus. The drum 107 is mounted with the possibility of moving longitudinally in the cartridge frame B1.
As shown in Figure 29 (c), the surface 1550h transmit rotational force (the portion transmitting rotational force) is angled relative to the axis L2 α6. By turning the coupling member 1550 in direction T1 transmission surface 1550h and the pin 155 contact each other. Then, the finger 155 in the direction T2, a component force is applied and moves in the direction T2. The shaft 153 is moved to the drum until the free end 153b of the drum shaft 153 comes into contact with the drum bearing surface 1550i (Figure 30 (b)) of the connecting element 1550. This predetermined position of the drum shaft 155 (the photosensitive drum) in relation to the direction axis L2. In addition, the drum bearing surface 1550i has a conical surface, and the free end 153b of the drum shaft 153 has a spherical surface. Thus, in regard to the direction perpendicular to the axis L2, the position defined relative to the driving portion 1550b of the drum shaft 153. Α5 and α6 angles of inclination are set such that create a force causing movement of the connecting member and the photosensitive drum in the thrust direction. However, these forces are different depending on the torque of the photosensitive drum 107. However, if it is provided a means for setting the position in the thrust direction, and tilt angles α5 α6 can be made small.
As described above, inclination is provided for the thrust in the connecting element in the direction of the axis L2 and the conic surface for position reference axis L2 with respect to the orthogonal direction. Due to this position once set to the direction of the axis L1 of the connecting element and position relative to the direction perpendicular to the axis L1. In addition, the coupling member can surely transmit the rotational force. Moreover, compared with the case where the surface that receives the rotational force (the portion which receives the rotational force) or transfer surface rotational force (the portion transmitting rotational force) of the connection element does not have an angle of inclination as described above may be stabilized by contact between a part, applying rotational force of the drive shaft and the part that receives rotational force of the connecting element. It may also be stabilized by the contact between the part that receives rotational force of the drum and the shaft portion transmitting the rotational force of the connecting element.
However, the tapered surface (inclined plane) for the retraction of the connecting member in the axial direction L2, and a conical surface to define the position of the axis L2 with respect to the orthogonal direction may be omitted. For example, instead of the inclination to initiate movement in the direction of the axis L2 can add the item to push drum in the direction of the axis L2. Further, although there is no specific mention of this, the inclined surface and provided with a conical surface. In addition, the inclined surface and a tapered surface provided in coupling member 150 as described above.
Next, referring to Figure 31 describes adjusting means for adjusting the tilt direction of the connecting element relative to the cartridge. Figure 31 (a) is a side view illustrating a main part of the driving side of the process cartridge, and Figure 31 (b) is a sectional view along the line S7-S7 in Figure 31 (a).
In this embodiment, because the adjusting device is provided, it is provided a more reliable coupling of the connecting member 150 and the drive shaft 180 of the main assembly of the device.
In this embodiment, the adjusting means includes adjusting portion 1557h1 or 1557h2 on the support member 1557 of the drum. The connecting member 150 by means of this adjusting means can be adjusted in the directions of deviation relative to the cartridge (B). The design here is such that at the time immediately before the coupling member 150 coupling the drive shaft 180, said adjusting portion 1557h1 or 1557h2 are parallel movement direction X4 of the cartridge (B). Here the intervals D6 slightly larger than the outer diameter D7 of the driving part 150b of the connecting member 150. This connecting member 150 may be pivotally rotated only in the cartridge mounting direction X4 (V). The connecting member 150 may be deflected in any direction relative to the shaft 153 of the drum. Thus, regardless of the phase of the shaft 153 of the drum coupling member 150 can be deflected in a predetermined direction. Thus, the drive shaft 180 can enter the hole 150m of the connecting member 150 more securely. It can thereby be achieved more reliably grip the coupling member 150 to the drive shaft 180.
Next, with reference to Figure 32 will be described another arrangement for controlling the direction of inclination of the connecting element. Figure 32 (a) is a perspective view showing the inside of the driving side of the main assembly of the apparatus, and Figure 32 (b) is a side view of the cartridge when viewed from behind with respect to the cartridge mounting direction X4.
In the above description, the adjustment portion 1557h1 or 1557h2 are provided in the cartridge (B). In this embodiment of the mounting guide 1630R1 on the drive side of the main assembly (A) of the device is a part of the adjustment rebrovidnuyu 1630R1a. Adjusting portion 1630R1a represents adjusting means for adjusting the deviation in the direction of the connecting member 150. The design here is such that when inserting a user of the cartridge (B), the outer periphery of the connecting portion 150c of the connecting member 150 contacts the upper surface 1630R1a 1-regulating section 1630R1a. Due to this coupling element 150 upper surface is directed 1630R1a-1. As a result, the direction of tilt is governed by the coupling member 150. Furthermore, similarly to the above embodiment, regardless of the phase of the drum shaft 153, the coupling member 150 is inclined in the direction specified adjustment.
Adjusting 1630R1a part in the example shown in Figure 32 (a), is provided below the connecting member 150. However, similarly to the regulating portion 1557h2, shown in Figure 31, by adding the regulating section on the upper side may be provided with a more reliable adjustment.
As described above, can also be combined with the construction in which the adjusting portion is provided in the cartridge (B). In this case, it may be provided with a more reliable adjustment.
However, in this embodiment, on the basis of which the means for adjusting the direction of inclination of the connecting element can be, for example, is omitted, the connecting member 150 is tilted forward in advance with respect to the cartridge mounting direction (B). Surface 150f, receiving a drive shaft connecting member is increased. With this grip may be provided a drive shaft 180 and coupling member 150.
In the foregoing description, the angle in the angular position pre clutch coupling element 150 relative to the axis L1 of the drum is greater than the angle in the disengaging angular position (Figures 22 and 25). However, the present invention is not limited to these examples.
Next, with reference to the description of Figure 33 will be performed. Figure 33 is a longitudinal sectional view illustrating the process of removing the cartridge (B) from the main assembly (A) of the device.
During withdrawal of the cartridge (B) from the main assembly (A) of the device at an angle disengaging angular position (in a state at fig.33s) of the coupling member 1750 relative to the axis L1 may be equal to the angle at the angular position pre clutch connecting member 1750 relative to the axis L1 while coupling the connecting element 1750. A process in which the disengagement of the connecting member 1750 shown in Figure 33 by reference numerals (a) - (b) - (c) - (d).
Specifically, the settings are such that the passage of the free end portion 1750A3 to the rear relative to the direction X6 dismounting the coupling member 1750 by the free end portion 180b3 of the drive shaft 180 the distance between the free end portion 1750A3 and the free end portion 180b3 is comparable with the distance in residence time in the preliminary angular position of coupling. When setting the parameters of said connecting element 1750 may be disengaged from the drive shaft 180.
Other operations during removal of the cartridge similar to the above-described operations, and therefore their description is omitted.
In the foregoing description, during installation of the cartridge (B) to the main assembly (A) of the device a free end situated in front in relation to the direction of mounting of the connecting element is closer to the drum shaft than the free end of the drive shaft 180. However, the present invention is not limited to the above example .
Next, description will be performed with reference to Figure 34. 34 is a longitudinal sectional view for illustrating the process of mounting the cartridge (B). As shown in Figure 34, in a state (a) of the process cartridge mounting (B) in the direction of the axis L1 of the free end position 1850A1 situated ahead relative to the cartridge mounting direction X4, is closer to the direction of the finger 182 (the portion applied rotational force) than the free end 180b3 of the drive shaft. In the state of (b) the free end position 1850A1 corresponds to a contact with a free end portion 180b. At the same time, the free end position 1850A1 moves toward the drum shaft 153 along the free end portion 180b. The position of the free end 1850A1 passes by the free end portion 180b3 of the drive shaft 180 in this position, and the coupling member 150 moves to an angular position prior coupling (Figure 34 (c)). Finally, the clutch is installed between the connecting element 1850 and the drive shaft 180 ((angular position of the rotational force transmission) Figure 34 (d)).
Next, an example of this embodiment.
Firstly, the diameter of the drum shaft 153 is designated as ⌀Z1 diameter pin 155 is designated as ⌀Z2, and the length - Z3 (Figure 7 (a)). The maximum outer diameter of the driven portion 150a of the connecting member 150 is designated as ⌀Z4, the diameter of the imaginary circle C1 through the inner ends of the projections 150d1 or 150d2 or 150d3, 150d4, designated ⌀Z5, and the maximum outer diameter of the driving portion 150b is designated as ⌀Z6 (Figure .8 (d), (f)). The angle formed between the connecting member 150 and receiving surface 150f, designated as α1. The diameter of the drive shaft 180 is designated as ⌀Z7, as the diameter of the finger 182 ⌀Z8, and the length of both Z9 (Figure 17 (b)). Angle relative to the axis L1 in the angular position transmitting rotational force designated as β1, an angle of the angular position of the clutch as a preliminary β2, and the angle in the disengaging angular position as a β3. In this example, Z1 = 8 mm; Z2 = 2mm; Z3 = 12mm; Z4 = 15mm; Z5 = 10mm; Z6 = 19mm; Z7 = 8mm; Z8 = 2mm; Z9 = 14 mm; α1 = 70 degrees; α2 = 120 degrees; β1 = 0 degrees; β2 = 35 °; β3 = 30 degrees. Under these setting parameters it was confirmed by the possibility of coupling the coupling member 150 with drive shaft 180. However, these values do not limit the present invention. When the connecting member 150 can transmit the rotational force to the drum 107 with high precision. The above values are examples, and the present invention is not limited to these values.
In this embodiment, the finger 182 (the portion applied rotational force) is in the range of 5 mm from the free end of the drive shaft 180. The surface 150E, perceiving the rotational force provided on the protrusion 150d, is in the range of 4 mm from the free end of the connecting member 150, thus, the finger 182 is located on the free end side of the drive shaft 180 and the surface 150E, perceiving rotational force is at the free end side of the connecting member 150.
Hence, during installation of the cartridge (B) to the main assembly (A) of the device can be achieved smoothly with each other clutch drive shaft 180 and coupling member 150. To be more specific, it is possible to smooth the interlocking pin 182 and the surface 150E, receiving the rotational force.
During removal of the cartridge (B) from the main assembly (A) of the device can be ensured a smooth disengagement of the drive shaft 180 from the coupling member 150. In particular, it can be ensured a smooth disengagement of the finger 182 from the surface 150E that receives rotational force.
The above values are examples, and the present invention is not limited to these values. However, the above-described positive results further strengthened when placing the finger 182 (part enclosing the rotational force), and the surface 150E that receives rotational force in specified ranges of numerical values.
As previously described, in the described embodiment, the connecting member 150 is able to move to an angular position transmitting rotational force to transmit a rotational force to the electrophotographic photosensitive drum for rotation thereof and the angular position of disengagement, in which the coupling member 150 deviates from the axis of the electrophotographic photosensitive drum transmitting angular position from the rotational force. When removing the process cartridge from the main assembly of the apparatus for forming electrophotographic images in a direction substantially perpendicular to the axis of the electrophotographic photosensitive drum, the coupling member is moved from the angular position, the rotational force transmission in the angular position of disengagement. When mounting the process cartridge to the main assembly of the electrophotographic image forming apparatus in a direction substantially perpendicular to the axis of the electrophotographic photosensitive drum, the coupling member moves from the disengaging angular position to the angular position of the rotational force transmission. All of the above can be applied to the following embodiments, although the next version 2 only concerns the removal of the cartridge.
Option 2
Next, with reference to fig.35-40 will be described a second embodiment to which the present invention is applicable.
In the description of this embodiment reference numerals as in embodiment 1 are assigned to the elements having the corresponding functions in this embodiment, and therefore, for simplicity the detailed description thereof is omitted. This also applies to another embodiment described below.
This embodiment is effective not only when installing or removing (B) from the main assembly (A) of the device, but also just for the removal of the cartridge (B) from the main assembly (A) of the device.
In particular, when stopped drive shaft 180 it stops at a predetermined phase under the control of the main assembly (A) of the device; in other words, it stops so that the pin 182 is at a predetermined position. Furthermore, the phase coupling element 14150 (150) is aligned, for example, the phase stopped drive shaft 180, the position of the receiving portion 14150k (150k) is set so that during installation of the cartridge (B) to the main assembly (A) of the device it can be harmonized to a position at which the stop finger 182 at said setting parameters, and even if the connecting member 14 150 (150) is not rotated, it returns to the state opposite the drive shaft 180. The rotational force from the drive shaft 180 is transmitted to the connecting element 14150 (150) through rotation of the drive shaft 180. With the above, the connecting member 14 150 (150) can be rotated with high precision. However, this embodiment is also effective in the removal of the cartridge (B) from the main assembly (A) of the device by moving in a direction substantially perpendicular to the axis L3. The reason for this is that even in case of stopping the drive shaft 1880 at a predetermined phase of the finger 182 and surface 14150e1, 14150e2 (150E) receptive rotational force are in engagement with each other. For this reason, in order to disengage the connecting member 14 150 (150) and a drive shaft 180, the coupling member 14 150 (150) to rotate.
In the above embodiment 1 during installation of the cartridge (B) to the main assembly (A) of the device during its removal connection element 14150 (150) is rotated. Thus, there is no need to manage the main assembly (A) of the device described above, as during installation of the cartridge (B) to the main assembly (A) of the device is not necessary to set the phase of the coupling member 14 150 (150) in accordance with the phase of the stopped before this drive shaft 180.
The description of this embodiment is performed with reference to the drawings.
3 is a perspective view illustrating means for controlling the phase of the drive shaft, drive pinion and the drive shaft of the apparatus main assembly. Figure 36 shows a perspective view and a plan view of the connecting element. Figure 37 is a perspective view illustrating a mounting operation of the cartridge. Figure 38 is a plan view from the direction during the installation of the cartridge. Figure 39 is a perspective view illustrating a state of stopping the drive of the cartridge (photosensitive drum). Figure 40 is a longitudinal sectional view and a perspective view illustrating the operation of removal of the cartridge.
In this embodiment, the description focuses on the cartridge to be mounted to the main assembly (A) of the device with the possibility of removal, wherein the main assembly (A) is provided with control means (not shown) which can control the phase position of the stop pin 182. One end side (not shown in the photosensitive drum 107 side) of the driving shaft 180 is the same as in the first embodiment (see Figure 35 (a)), and therefore its description is omitted. On the other hand, as shown in Figure 35 (b), the other end side (the opposite side is not shown of the photosensitive drum 107 side) is provided with a flag 14195 extending from the drive shaft 180 to the outside. Check Box 14195 thanks to its rotation passes through fotovyklyuchatel 14196, attached to the main assembly (A) of the device. Control means (not shown) provides control such that after the rotation (for example, turning the imaging) of the driving shaft 180, when the flag 14195 interrupts the first light flux in fotovyklyuchatele 14196, engine 186 stops. With this finger 182 is stopped in a predetermined position relative to the axis of rotation of the drive shaft 180. As for the motor 186, in this embodiment, it is desirable to use a stepping motor in which the positioning control is simplified.
Referring to Figure 36, with reference to which will now be described a connecting member used in this embodiment.
Connecting element 14150 mainly comprises three parts. As shown in Figure 36 (c), is driven portion 14150a, perceiving the rotational force from the drive shaft 180, the driving portion 14150b for transmitting rotational force to the shaft 153 and the connecting portion of the drum 14150s, which connects to one another driven portion 14150a and the driving portion 14150b.
Driven portion 14150a has a portion 14150m to insert the drive shaft, and formed part of 14150m 2 surfaces divergent relative to the axis L2. At the same time the driving portion 14150b has a part to insert 14150v drum shaft with two surfaces, divergent relative to the axis L2.
Part 14150m to insert a sloping surface or 14150f1 14150f2, take a drive shaft. On each end surface of the protrusion is provided 14150d1 or 14150d2. The projections 14150d1 and 14150d2 are arranged circumferentially relative to the axis L2 the coupling member 14150. The receiving surfaces 14150f1, 14150f2 form a recess 14150z, as shown in the figure. As shown in Figure 36 (d), of the projection 14150d1, 14150d2, located in front with respect to the clockwise direction, it has a surface 14150e (14150e1, 14150e2), a receiving rotational force (the portion which receives the rotational force). Finger 182 (part enclosing the rotational force) merges with the surface of the receiving 14150e1, 14150e2. Due to this rotational force is transmitted to the connecting element 14150. interval (W) between the adjacent projections 14150d1-d2 larger than the outer diameter of pin 182, allowing to insert a finger 182. This interval is the receiving portion 14150k.
Part 14150v formed by two surfaces 14150i1, 14150i2. These surfaces 14150i1, 14150i2 provided receiving hole 14150g1 or 14150g2 (Figure 36, Figure 36). In addition, as shown in Figure 36 (e) to the rear (with respect clockwise direction) portion of the apertures or 14150g2 is provided 14150g1 surface 14150h (14150h1 or 14150h2) for transmitting a rotational force (the portion transmitting rotational force). As described above, the pin 155a (portion which receives the rotational force) is in contact with surfaces or 14150h1 14150h2 transmit a rotational force. Due to this rotational force from the coupling member 14150 is transmitted to the photosensitive drum 107.
With this form of connecting member 14150 it is over the free end of the drive shaft in a state where the cartridge is set in the main assembly of the apparatus.
When using a design similar to that described in the first embodiment, the coupling element 14150 can be deflected in any direction relative to the shaft 153 of the drum.
Next, with reference to Fig.37 and Fig.38 will be described mounting operation the coupling member. Figure 37 (a) is a perspective view illustrating a state before the assembly of the connecting element. Figure 37 is a perspective view illustrating a state of coupling of the connecting element. Figure 38 (a) is a plan view thereof as viewed from the mounting direction. Figure 38 (b) shows a plan view thereof as seen from above with respect to the mounting direction.
The axis L3 finger by the above control means is set parallel to the direction X4 mounting. In addition, with regard to the cartridge, the phase aligns so that the surfaces of perception and 14150f1 14150f2 turned against each other in a direction perpendicular to the mounting direction X4 (Figure 37 (a)). As a structure for aligning the phase, either party or the receiving surface 14150f1 14150f2 aligned to mark 14157z, provided on the supporting member 14157, as shown, for example, in this figure. This is done before sending the cartridge factory. However, the user can perform it before installing the cartridge (B) in the main assembly of the apparatus. It can also be used by other means of phase control. Thus, the connecting element 14150 and the drive shaft 180 (finger 182) do not interfere with each other in the mounting direction, as shown in Figure 38 (a). Therefore, the coupling member 14150 and the drive shaft 180 can engage without any problem (Figure 37 (b)). Drive shaft 180 rotates in the direction X8, so that the pin 182 contacts the receiving surface 14150e1, 14150e2. Due to this rotational force is transmitted to the photosensitive drum 107.
Next, referring to Figure 39 and Figure 40 will be described operation in which the connecting element 14150 is disengaged from the drive shaft 180 in interrelation with the operation of removal of the cartridge (D) of the main assembly (A) of the device. Phase finger 182 relative to the drive shaft 180 is fixed the control means in a predetermined position. As described above, the assessment of the ease of mounting the cartridge (B) it is desirable that the pin 182 installed in parallel with the phase-removal direction X6 of the cartridge (fig.39b). Operation during removal of the cartridge (B) is shown in Figure 40. In this state (Figure 40 (a1) and (b1)) 14150 connecting element takes the angular position of the rotational force transmission, while the axes L1 and L2, substantially coincide with each other. At this time, similar to the case of mounting the cartridge (B), the coupling element 14150 can be deflected in any direction relative to the drum shaft 153 (Figure 40 (a1), Figure 40 (b1)). Thus, the axis L2 is deflected in the opposite direction to remove the cartridge relative to the axis L1, in conjunction with the operation of removing the cartridge (B). In particular, the cartridge (B) is removed in the direction (direction of the arrow X6) substantially perpendicular to the axis L3. In the process of removing the cartridge axis L2 is rejected until the free end of the connecting element 14150A3 14150 would not located along the free end 180b of the drive shaft 180 (the angular position of disengagement). Either it is deflected so far in relation to the free end portion 180b3 (Figure 40 (a2), Figure 40 (b2)), until the axis L2 does not fit to the shaft 153 of the drum. In this state, the connecting element 14150 extends past the free end portion 180b3. In this way the connecting element 14150 is dismantled from the drive shaft 180.
As shown in Figure 39 (a), the axis of pin 182 may stop in the state perpendicular to the cartridge removal direction X6. Typically, the finger 182 is stopped in the position shown in Figure 39 (b), under the control of control means. However, the source voltage device (printer) can be switched off, and then the management tool can not run. Pin 182 may then stop in the position shown in Figure 39 (a). However, even in this case, the axis L2 is deflected from the axis L1 by analogy with the above case, and there may be a cartridge removal operation. When the device is able to stop the drive, the finger 182 is in front of the projection 14150d2 relative to the direction X6 removal. Thus, the free end of the projection 14150A3 14150d1 connecting element extends along the shaft 153 of the drum 182 through the finger deflection axis L2. As a result the connecting element 14150 is disconnected from the drive shaft 180.
As described above, even if the connecting member 14150 proved interlocked in any way with the drive shaft 180 due to the installation of the cartridge (B), the axis L2 is deflected from the axis L1 in the case of the cartridge removal operation. Due to this coupling element 14150 can be disconnected from the drive shaft 180 only by the operation of said removal.
As described above, this embodiment two equally effective both in the case of removing the cartridge from the main assembly of the apparatus, and in the case of mounting the cartridge (B) into and removing it from the main assembly (A) of the device.
Option 3
Next, with reference to fig.41-45 will be described a third embodiment of the present invention.
Figure 41 is a sectional view illustrating the state when the door apparatus main assembly A is opened. In Figure 42 is a perspective view illustrating the installation guide. 43 is an enlarged view of the cartridge from the drive end. 44 is a perspective view of the cartridge from the drive end. 45 is a view illustrating the state of insertion of the cartridge into the main assembly of the apparatus.
In this embodiment, for example, in the case of an image forming apparatus such as "shell", the cartridge is set upside down. A typical image forming apparatus of the "shell" is shown in Figure 41. The main assembly A2 device comprises a lower casing D2 and an upper housing E2. The upper casing E2 is provided with a door 2109 and the exposure device 2101 inside the door 2109. Therefore, when tilting upwards the upper casing E2 is given exposure unit 2101 opens upper portion 2130a of the cartridge mounting. When the user mounts the cartridge B-2 in the mounting portion 2130a, it lowers the cartridge B-2 downwardly towards H4V. This completes the installation of the cartridge, and as can be seen, it is quite simple. The upper part of the device can be activated jam clearance operation in the area of the fixing device 105. Therefore, the jam recovery is greatly simplified. There is a jam recovery operation of removing the recording material 102 jammed in its submission.
Next described in more detail the mounting portion for the cartridge B-2. As shown in Figure 42, the image forming device A2 is provided with a guide 2130R installation on the drive side and is provided with opposite guide not shown installed on the drive side not as a means to install 2130. The mounting portion 2130 is formed in a space surrounded by the opposing guides. The rotational force is transmitted from the apparatus main assembly A the coupling member 150 of the cartridge B-2 provided in said mounting portion 2130a.
2130R installation guide provided with a groove 2130b, which is in a substantially perpendicular direction. In the lowermost part of the supporting part is provided 2130Ra, define the position of the cartridge B2. From groove 2130b the drive shaft 180. In the state where the cartridge B-2 is in a predetermined position, the drive shaft 180 transmits rotational force from the apparatus main assembly A the coupling member 150. To ensure that the cartridge B to position 2 in the predetermined position, the bottom 2130R installation of the guide provides a biasing spring 2188R. Due to the above construction, the cartridge B-2 is positioned in the mounting portion 2130a.
As shown in Figure 43 and Figure 44, the cartridge B2 is provided with guide 2140R1 and 2140R2 of the cartridge installation. During installation of the cartridge B-2, these guide its orientation is fixed. Installation guide 2140R1 is formed on the support member in 2157 of the drum as its integral part. Thus, substantially over the guide 2140R1 is provided guide 2140R2 installation. Guide 2140R2 is provided in the second frame 2118, wherein it has the shape of ribs.
Guides 2140R1, 2140R2 of the cartridge mounting guide 2130R B2 and apparatus main assembly A have the above structure. In particular, it coincides with the guide structure described in connection with Figures 2 and 3. The design of the guide at the other end is the same. Thus, the cartridge B-2 is set when it is moved to the main assembly of the apparatus A in a direction substantially perpendicular to the axis L3 of the drive shaft 180, and similarly with the cartridge removed from the apparatus main assembly A.
As shown in Figure 45, during installation of the cartridge B-2, the top casing E2 is rotated clockwise relative to the shaft 2109, and the user enters the cartridge B-2 in the upper portion of the lower casing D2. At this time, the coupling member 150 is deflected downward under its own weight (Figure 43). In other words, the axis L2 of the connecting element is deflected relative to the axis L1 of the drum, so that the driven portion 150a of the connecting member 150 may be in an angular position prior clutch.
As has been described in connection with Embodiment 1 (Figures 9 and 12), it is desirable to provide a semi-circular retaining rib 2157e (Figure 43). In this embodiment, the mounting direction of the cartridge B-2 is a downward direction. Therefore, the rib 2157e is at the bottom. Due to this, as has been described in connection with one embodiment, the axis L1 and the axis L2 can be pivotally rotated relative to each other, which ensures the retention of the connecting member 150. The retaining rib prevents separation of the coupling member 150 from the cartridge D2. When installing the connecting element 150 on the photosensitive drum 107 is prevented its separation from the photosensitive drum 107k.
In this state, as shown in Figure 45, the user lowers the cartridge B-2 downward, aligning guides 2140R1, 2140R2 of the cartridge B installation 2 with guides 2130R apparatus main assembly A2. By this operation, the cartridge B-2 can be mounted in the mounting portion 2130a apparatus main assembly A2. During installation, in analogy with the embodiment (22) can be provided the clutch coupling member 150 driving shaft 180 to the apparatus main body (in this state, the coupling element occupies an angular position, the rotational force transmitting). In particular, by moving the cartridge B-2 in a direction substantially perpendicular to the axis L3 of the drive shaft 180 occurs clutch connecting member 150 with drive shaft 180. During removal of the cartridge similar to the embodiment 1 uncoupling the coupling member 150 from the drive shaft 180 may only be achieved by the operation of removing the cartridge (the coupling member is moved to the disengaging angular position from the angular position transmitting rotational force (Figure 25)). In particular, by moving the cartridge B-2 in a direction substantially perpendicular to the axis L3 of the drive shaft 180 is carried uncoupling the coupling member 150 from the drive shaft 180.
As described above, since the connecting element is deflected downward under its own weight when the cartridge is inserted downward into the main assembly of the apparatus, it can be provided a secure grip with the drive shaft of the main assembly of the device.
In the present embodiment described the image forming apparatus of the "shell". However, the present invention is not limited to this example. This embodiment can for example be applied if the mounting direction of the cartridge is downward direction. This trajectory is not limited to the installation downwards in a straight line. For example, at the initial stage of the cartridge installation it can be tilted downward, and the end may be in a vertical position. The present embodiment is effective if the installation path just before reaching the set position (cartridge mounting portion) is directed downward.
Option 4
Next, with reference to fig.46-49 will be described a fourth embodiment of the present invention.
In this embodiment, a means for maintaining the axis L2 in an inclined state relative to the axis L1.
The drawing shows only an element related to the description of this part of the present invention, and other elements are omitted. The same applies to other embodiments described below.
At 46 is a perspective view illustrating the closure element of the connecting element (which is the specificity of this embodiment) adhered to the drum support member. 47 is shown an exploded perspective view showing the drum support member, the connecting member and the drum shaft. In Figure 48 is an enlarged perspective view of the principal part of the driving side of the cartridge. At 49 is shown a perspective view and a longitudinal sectional view which illustrate the coupling condition between the drive shaft and the coupling element.
As shown in Figure 46 is, the support member 3157 has a space 3157b of the drum, the surrounding portion of the connecting member. The locking element 3159 connecting member as a supporting member serving to support the inclination of the connecting member 3150 is pasted on a cylinder surface 3157i, defining said space. As will be described hereinafter, this locking member 3159 is a member for temporary support state in which the axis L2 relative to the axis L1 rejected. In other words, as shown in Fig.48, the flange portion 3150j of the connecting member 3150 in contact with the locking member 3159. This axis L2 is maintained in a downward inclination relative to the direction (X4) of the cartridge mounting relative to the axis L1 (Figure 49 (a1 )). Thus, as shown at 46 is, the locking member 3159 is located on the cylindrical surface 3150i of the support member 3157 to the rear in relation to the direction X4 installation. As a material for the closure element 3159 suitable materials having a relatively high coefficient of friction such as rubber and ELAS altimeter or elastic material such as sponge and the flat spring. The reason for this is that the inclination of the axis L2 can be maintained by the frictional force, elastic force, etc. Here, by analogy with the embodiment 1 (shown in Figure 31), the support member 3157 is provided with a rib 3157h adjust the direction of inclination. This rib 3157h can reliably set the direction of inclination of the connecting member 3150. In addition, the flange portion 3150j and the locking element 3159 may be more securely in contact with each other. Referring to Fig.47, a method for assembling the connecting member 3150. As shown in Figure 47, the pin 155 (the portion which receives the rotational force) is included in the receiving space of the coupling member 3150. 3150g portion of the connecting member 3150 inserted into the space portion 3157b, which attaching the support member 3157 in the drum. At this time, it is preferable that the distance D12 between the edge of the inner surface of the rib 3157e and the locking member 3159 becomes such that it is greater than the maximum outer diameter of the driven portion ⌀D10 3150A. When the distance D12 is set so as to be less than the maximum outer diameter ⌀D11 drive portion 3150b. Through this can be carried out direct assembly of the support member 3157. Therefore, improving the quality of the assembly. However, the present invention is not limited to this feature.
Referring to Figure 49, with reference to which will be described operation of coupling (cartridge mounting part of the operation) for coupling the coupling member 3150 with drive shaft 180. In Figure 49 (a1) and (b1) shows the state immediately before the coupling and FIG .49 (a) and (b2) shows the state of completion of the coupling.
As shown in Figure 49 (a1) and Figure 49 (b1), the axis L2 of the connecting member 3150 previously rejected downstream relative to the direction X4 relative to the axis L1 of the locking member under the influence of 3159 (the angular position prior clutch). Due to such inclination of the connecting member 3150 in the direction of the axis L1 located ahead (with respect to the cartridge mounting direction) free end portion 3150A1 is closer to the direction of the photosensitive drum 107 than the free end portion 180b3 the drive shaft. And located behind (relative to the cartridge mounting direction) free end portion 3150A2 is closer to the finger 182 than the free end of the drive shaft b3, and at this time, as described above, the flange portion 3150j contacts the locking element inclined state 3159. axis L2 is maintained by the frictional force.
Next, the cartridge B is moved in a direction X4 installation. Due to this free end surface 180b or the free end of the finger 182 contacts the receiving surface 3150f of the drive shaft connecting member 3150. The axis L2 becomes a direction parallel to the axis L1 under the action of the contact force (force to the cartridge mounting). At this time, the flange portion 3150j extends from the locking member 3159 and goes to a state of no contact. Finally, the axes L1 and L2, substantially coincide with each other. The connecting member 3150 enters a wait state for transmitting a rotational force (angular position for transmitting rotary force) (Figure 49 (a2), (b2)).
By analogy with the embodiment 1, the rotational force of the motor 186 is transmitted through the drive shaft 180 to the coupling member 3150, the pin 155 (the portion which receives the rotational force), the drum shaft 153 and the photosensitive drum 107. The axis L2 during rotation virtually coincides with the axis L1. Thus, the locking member 3159 does not contact with the connecting member 3150. Therefore, the locking member 3159 does not affect the rotation of the connecting member 3150.
These operations follow the step similar to Embodiment 1, in a process in which the cartridge B is removed from the apparatus main assembly A (Figure 25). In other words, the free end portion 180b of the drive shaft 180 presses the connecting element 3150f 3150, receiving the drive shaft. This axis L2 deviates from the axis L1, and the flange portion 3150j is brought into contact with the locking member 3159. With this tilting state again supported coupling element 3150. In other words, the connecting member 3150 is moved from the angular position, the rotational force transmission, to an angular position prior coupling.
As described above, the inclined state of the axis L2 is maintained locking member 3159 (maintaining member). It can thereby be achieved more reliably grip the coupling member 3150 with drive shaft 180.
In this embodiment, the locking member 3159 pasted on the rearmost (relative to the cartridge mounting direction X4) portion of the inner surface 3157i of the support member 3157. However, the present invention is not limited to this example. For example, if a deviation axis L2 can be any position which can support an inclined state of the axis.
Furthermore, in this embodiment, the locking member 3159 is in contact with the flange portion 3150j, provided on the side of the drive portion 3150b (Figure 49 (b1)). However, the position of the contact may be driven portion 3150A.
The locking element 3159 used in this embodiment is a separate element to the support member 3157. However, the present invention is not limited to this example. Locking element 3159 may be formed with the support member 3157 as a whole (for example, two-color molding). Alternatively, the support member 3157 may be in direct contact with the connecting member 3150 in place of the locking member 3159. Or, the surface may be roughened to increase the coefficient of friction.
Also in this embodiment, the locking member 3159 pasted on the supporting member 3157. However, if the locking member 3159 is the member fixed to the cartridge B, it can be pasted into any position.
Option 5
Next, with reference to fig.50-53 will be described a fifth embodiment of the present invention.
This embodiment will be described other means for maintaining the state of inclination of the axis L2 relative to the axis L1.
In fig.50 is shown an exploded perspective view of a biasing member (which is characteristic of the present invention) mounted on the drum support member, for urging the coupling member. 51A contains an exploded perspective view showing the drum support member, the connecting member and the drum shaft. Figure 52 is an enlarged perspective view of the principal part of the driving side of the cartridge. At 53 is a perspective view and a longitudinal sectional view illustrating the drive shaft in a state of coupling with the connecting element.
As shown in fig.50, in the retention rib 4157e of the support member 4157 provided the drum retaining hole 4157j. In the holding hole 4157j mounted biasing member 4159a, 4159b to the connecting element as the support element for supporting the connecting member 4150. tilt biasing members 4159a, 4159b draw in the connecting member 4150 so that the axis L2 is deflected downward relative to the mounting direction of the cartridge B-2 relative axis L1. Each biasing element 4159a, 4159b is a cylindrical compression spring (a resilient material). As shown in Fig.51, biasing member 4159a, 4159b draw in the flange portion 4150j of the connecting member 4150 in the direction of the axis L1 (an arrow X13 to Fig.51). Contact point where biasing member in contact with the flange portion 4150j, is ahead of the center shaft of the drum with respect to the cartridge mounting direction X4. Thus, with regard to the axis L2, the driven portion 4150a side is deflected downward relative to the direction (X4) of the cartridge mounting relative to the axis L1 by the elastic force by the urging member 4159a, 4159b (Figure 52).
As shown in fig.50, the free end of each urging member 4159a, 4159b to the connecting element, which is a coil spring, provided with a contact member 4160a, 4160b. The contact member 4160a, 4160b is in contact with the flange portion 4150j. Therefore, it is preferable that the material of the contact member 4160a, 4160b have a high lubricity. Thus, by using such a material, as will be described below, during transfer of the rotational force minimizes the effect of the biasing force exerted by the biasing element 4159a, 4159b, the rotation of the connecting member 4150. However, in the case where the load connected to the rotation is sufficiently small and a connecting member 4150 is rotated properly, contact members 4160a, 4160b are not required.
The present invention provides two-urging member. However, in case when the axis L2 can be deflected forward with respect to the cartridge mounting direction relative to the axis L1, the amount of biasing member may be any. For example, in the case of using biasing member for activating the position desired, so that it is as far as possible forward in relation to the cartridge mounting direction X4. Due to this coupling element 4150 may stably deflect downward relative to the cartridge mounting direction.
In addition, in the present invention, the biasing element is a coil compression spring. However, elastic force may be provided by a leaf spring, torsion spring, rubber, sponge material, etc., then the biasing element may be different. However, the deviation axis L2 is required to provide a specific course. Consequently, in the case of using an annular spring, etc. it is necessary that this course was provided.
Next, referring to Fig.51, a method for mounting the connecting member 4150.
As shown in Fig.51, the pin 155 enters into the receiving space of the coupling member 4150b 4150. Part of the coupling member 4150 is inserted into the space 4157b of the drum 4157 of the support member. At this time, as described above, the biasing member 4159a, 4159b push the flange portion 4157j at a predetermined position by a contact member 4160a, 4160b. In 4157g1 and 4157g2 hole, provided in the supporting member 4157, is screwed into the screw (4158a, 4158b in Figure 52), through which the support member 4157 is fixed to the second frame 118. This ensures the urging force of the impact on the connecting member 4150 by the biasing element 4159a, 4159b. The axis L2 is deflected relative to the axis L1 (Figure 52).
With reference to the operation 53 is described (cartridge mounting part of the operation) the clutch coupling member 4150 with drive shaft 53 is 180. (a1) and (b1) shows the state immediately before the clutch 53 is on (a2) and (b2 ) shows a state of completion of the clutch, and 53 is (c1) shows the intermediate state.
53 is on (a1) and (b1), the axis L2 of the connecting element 4150 is inclined in advance in the cartridge mounting direction X4 relative to the axis L1 (the angular position prior clutch). Due to the inclination of the connecting member 4150 of the free end position 4150A1 situated ahead relative to the direction of the axis L1, is closer to the photosensitive drum 107 than the free end 180b3. The position of the free end of the 4150A2 is closer to the finger 182 than the free end 180b3. In other words, as described above, the biasing element 4159 exerts pressure on the flange portion 4150j coupling element 4150. Therefore, the axis L2 by the action of the biasing force is deflected relative to the axis L1.
Further, by moving the cartridge B in the direction X4 installation the free end surface 180b or the free end (hook portion on main assembly side) of the finger 182 (the portion applied rotational force) comes into contact with the receiving surface 4150f of the drive shaft or the projection 4150d coupling member 4150 (contact portion on cartridge side). 53 is on (c1) shows the state in which the finger 182 contacts the receiving surface 4150f. The axis L2 becomes a direction parallel to the axis L1, by the action of the contact force (force of the cartridge installation). Simultaneously presses 4150j1 part, which acts on the elastic force of the spring 4159 provided in the flange portion 4150j, moves in the direction of compression spring 4159. Finally, the axes L1 and L2 coincide. The connecting member 4150 takes the standby position for performing transmit a rotational force (rotational position, the rotational force transmission, 53 is (a2, b2)).
By analogy with the embodiment 1, the rotational force transmitted from the motor 186 to the coupling member 4150, the pin 155, the drum shaft 153 and the photosensitive drum 107 through the drive shaft 180. During the rotation of the biasing force of the biasing element 4159 acts on the connecting member 4150. However, as was described above, the biasing force of the biasing element 4159 acts on the connecting element 4150 through the contact member 4160. Therefore, the coupling member 4150 can be rotated without high load. This contact element 4160 is not required if the torque of the engine 186 is large enough. In this case, even if the contact member 4160 is not provided, the coupling member 4150 can transmit the rotational force with high precision.
During removal of the cartridge B from the apparatus main assembly A is performed step counter step when installing the cartridge. In other words, the connecting member 4150 is typically a biasing element 4159 is pushed forward with respect to the direction X4 installation. Thus, the removal process cartridge B receiving surface 4150f contact with the free end portion 182A of the pin 182 on to the rear with respect to the cartridge mounting direction X4 (53 is (c1)). Furthermore, between the free end 180b of the transmitting surface 4150f and the drive shaft 180 with respect to the front direction X4 installation is necessary to provide a gap n50. In the above embodiments, a process of removing the cartridge receiving surface 150F or protrusion 150d, situated in front with respect to the mounting direction X4, the coupling member is brought into contact with the free end portion 180b of the drive shaft 180 (e.g., see Figure 25). However, in the present embodiment, the receiving surface 150f or the projection 4150d, situated in front with respect to the direction X4 mounting connector element is not in contact with the free end portion 180b of the drive shaft 180, and in accordance with the operation of removing the cartridge B coupling member 4150 can be separated from the drive shaft 180 . Even after the connecting member 4150 has departed from the driving shaft 180, the axis L2 by the action of the biasing force by the biasing member 4159 is deflected forward with respect to the cartridge mounting direction X4 relative to the axis L1 (disengaging angular position). In particular, in this embodiment, the angle of the angular position and angle of the clutch prior to disengaging angular position relative to the axis L1 are equivalent to each other. The reason for this is that the coupling member 4150 is pushed by an elastic force of the spring.
The function of the biasing element 4159 is the inclination of the axis L2, and moreover, the regulation of the direction of inclination of the connecting element 4150. In particular, the biasing element 4159 acts as the adjustment means to adjust the direction of inclination of the connecting element 4150.
As previously described, in this embodiment, the connecting member 4150 is urged by the elastic force of the urging member 4159 provided in the support member 4157. This deviates axis L2 relative to the axis L1. Thus, the inclined state is maintained coupling element 4150. Therefore, there can be provided a secure grip coupling member 4150 with drive shaft 180. The urging member 4159 described in this embodiment, is provided in the rib 4157e of the support member 4157. However, the present invention is not limited to this example. For example, it may be another part of the support member 4157, and it may be any member fixed to the cartridge B (not on the support member).
In this embodiment, the direction in which the biasing element 4159 performs Poggio, is a direction along the axis L1. However, the direction of the biasing may be any if the axis L2 bent forward relative to the direction X4 of the cartridge mounting B.
For more reliable tilt forward coupling member 4150 with respect to the mounting direction of the cartridge B in the process cartridge can be provided with an adjusting part for adjusting the inclination of the connecting element (Figure 31).
In this embodiment, the activating position biasing member 4159 is its position at the flange portion 4150j. However, the position of the connecting member may be any if the axis L2 bent forward with respect to the cartridge mounting direction.
Also, the present embodiment can be implemented in conjunction with the embodiment 4. In this case, it may be further provided with operation of mounting and dismounting the coupling member.
Option 6
Next, with reference fig.54-58 will be described a sixth embodiment of the present invention.
This embodiment will describe other means for supporting a state in which the axis L2 is inclined relative to the axis L1.
At 54 it is presented an exploded perspective view of the process cartridge in this embodiment. In fig.55 is shown an enlarged side view of the driving side of the cartridge. In fig.56 is a schematic longitudinal sectional view of the drum shaft, the coupling member and the support member. In fig.57 is shown a longitudinal sectional view illustrating the operation in which the mounting of the connecting element on the drive shaft. On 58A is a sectional view illustrating a modified example of the locking member to the coupling member.
As shown in fig.56 and 54 is, the support member 5157 is provided with a reel locking member 5357k for the connecting element. During assembly, the support member 5157 in the direction of the axis L1 part 5157k1 locking surface of the locking member 5157k engages with the upper surface of the flange portion 5150j 5150j1 in contact with the inclined surface 5150m of the connecting member 5150. At this time, the flange portion 5150j is supported with possibility of free running (angle α49) in the rotational direction between the locking surface of the locking portion 5157k 5157k1 and the cylindrical portion 153a of the shaft 153 of the drum. The following results are based on given free lift (angle α49). In particular, even if the dimensions of the connecting elements 5150, 5157 of the support member and the drum shaft 153 vary within the boundaries of their tolerance 5150j1 upper surface can be reliably fixed locking surface 5157k1.
As shown in fig.56a, with regard to the axis L2, the driven side portion 5150 relative to the axis L1 is inclined forward in relation to the direction (X4) of the cartridge mounting. Moreover, since the flange portion 5150j covers the entire circumference, it can ensure retention regardless of the phase coupling member 5150. Furthermore, as has been described in connection with one embodiment, the coupling member 5150 can only be deflected in the installation direction X4 by the regulating portion 5157h1 or 5157h2 (fig.55) as adjusting means. Furthermore, in this embodiment, the locking member 5157k is provided for connecting the front element with respect to the direction (X4) of the cartridge mounting.
As will be described later, in a state where the coupling member 5150 is in engagement with the drive shaft 180, the flange portion 5150j is released from the locking member 5157k, as shown in fig.56 (b). The connecting member 5150 is released from the locking member 5157k. Without the ability to hold the tilt state of the coupling member 5150 when the support member assembly 5157 driven portion 5150a connecting member urged by a suitable means, etc. (fig.56 (b) an arrow X14). Due to this coupling member 5150 can easily return to the inclined state (fig.56 (a)).
To protect the user from touching the edge of the connecting element is provided 5157m. The rib 5157m is set to virtually the same height, which corresponds to the position of the free end in an inclined state of the coupling member (fig.56 (a)). With reference to fig.57 will be described the operation (a part of mounting operation of the cartridge) coupling the coupling member 5150 with drive shaft 180. In fig.57 (a) shows the state immediately before the coupling member coupling; on fig.57 (b) shows a state after the drive shaft 180 hit the part of the connecting member 5150; on fig.57 (c) shows the state where the drive shaft 180 freed inclined connecting member 5150, while fig.57 (d) shows the coupled state.
In the state (a) and (b) the axis L2 of the connecting member 5150 previously rejected in the cartridge mounting direction X4 relative to the axis L1 (the angular position prior clutch). Due to the inclination of the connecting member 5150 of the free end position 5150A1 is closer to the photosensitive drum than the free end 180b3 in the direction of the axis L1. The position 5150A2 is closer to the free end of the finger 182 than the free end 180b3. As described above, at this time, the flange portion 5150j is in contact with stop surface 5157k1, and is supported by an inclined state of the coupling member 5150.
Thereafter, as shown in part (c), the receiving surface 5150f or the projection 5150d contacts to the free end portion 180b or the finger 182 by the movement of the cartridge B in the direction X4 installation. The flange portion 5150j is separated from the locking surface 5157k1 contact force. Condition locking the connecting member 5150 to the support member 5157 is terminated. In accordance with the operation of mounting the cartridge coupling member is inclined so that its axis L2 practically coincides with the axis L1. After passing through the flange portion 5150j locking member 5157k returns to the previous position by the restoring force. At this time, the coupling member 5150 is released from the locking member 5157k. Finally, as shown in part (d) axis L1 and L2 are practically the same, and sets a state of readiness in rotation (angular position, the rotational force transmitting).
In the process in which the cartridge B is removed from the apparatus main assembly A (Figure 25), followed by a step similar to the embodiment 1. In particular, the state of the coupling member 5150 from moving in the removing direction X6 of the cartridge is changed in sequence: (d) , (c), (b) and (a). First, the free end portion 180b presses the receiving surface 5150f (the contact portion on the side of the cartridge). Due to this axis L2 relative to the axis L1 is deflected, and the lower surface of the flange portion 5150j2 comes into contact with the inclined surface 5157k2 locking member 5157k. The elastic portion of the locking member 5157k 5157k3 bent and the free edge 5157k4 locking surface extends from the flange portion 5150j (fig.57 (c)). In addition, the flange portion 5150j and the locking surface 5157k1 contact with each other when the cartridge is moved in the direction (X6) of its removal. This supports the inclination angle of the connecting element 5150 (fig.57 (b)). In particular, the connecting member 5150 pivotally angular position deviates from transmitting the rotational force in the disengaging angular position.
As described above, the disengaging angular position is maintained with locking element 5150 5157k. This supports the inclination angle of the connecting element. Thus, there can be provided a secure grip coupling member 5150 with drive shaft 180. In addition, during the rotation of the locking member 5157k is not in contact with the connecting member 5150. Therefore, the coupling member 5150 can perform a stable rotation.
The movement of the connecting element shown in fig.56, 57 and 58 may include a circular motion.
In this embodiment, the locking member 5157k is provided with an elastic portion. However, it may be an edge having no elastic portion. In particular, the degree of coupling between the locking member 5157k and the flange portion 5150j is reduced. Can thereby be achieved a similar result if we make the flange portion 5150j is slightly deformed (58A (a)). In addition, the locking member 5157k is provided at the front in relation to the cartridge mounting direction X4. However, if the slope can be maintained in a predetermined direction of the axis L2, the position of the locking member 5157k may be any.
On 58A (b) and 58 (c) show examples where the locking portion 5357k (fig.58b) and 5457k (fig.58s) is provided behind the connecting element relative to the cartridge mounting direction X4.
In the above embodiment, the locking member 5157k is formed by part of the support member 5157. However, if it is attached to the cartridge B, the locking member 5157k may be constituted as a part of the element other than the reference element. Also the locking member may be a separate element.
Furthermore, the present invention can be implemented with Embodiment 4 or 5. In this embodiment, the operation of installation and removal is performed more securely.
Option 7
With reference to fig.59, fig.62 will be described a seventh embodiment of the present invention. This embodiment will describe other means for supporting the axis of the connecting element in an inclined state with respect to the axis of the photosensitive drum.
In fig.59 is a perspective view illustrating a state where the magnetic element (which is a characteristic feature of the present embodiment) pasted on the drum bearing member. In fig.60 shows an exploded perspective view. At 61, an enlarged perspective view of the principal part of the driving side of the cartridge. In fig.62 is shown a perspective view and a longitudinal sectional view illustrating the state of the drive shaft and its coupling to the coupling element.
As shown in fig.59, the support member 8157 forms a space 8157b of the drum, the surrounding portion of the connecting member. Magnetic element 8159 as a supporting member to support the inclination of the connecting element 8150, is pasted on the cylindrical surface 8157i, which constitutes said space. Furthermore, as shown in fig.59, the rear portion (relative to the installation direction X4) of the cylindrical surface 8157i provided magnetic element 8159. As will be described below, this magnetic element 8159 serves to temporarily maintain the state in which the axis L2 is inclined relative axis L1. Here, the connecting element 8150 is made of magnetic material. The magnetic portion is attracted to the magnetic force of the magnetic element 8159 element 8159. In this embodiment, the flange portion 8150j, representing virtually complete circle is formed of a metal magnetic material 8160. In other words, as shown at 61,, the flange portion 8150j is contacted with the magnetic element 8159 through the power of magnetic attraction. Therefore, the axis L2 is maintained to tilt forward relative to the direction (X4) of the cartridge mounting relative to the axis L1 (fig.62 (a1)). Similarly to Embodiment 1 (Figure 31) adjusting the tilt direction rib 8157h is preferably provided in the support member 8157. The direction of inclination of the coupling member 8150 can be set reliably by providing the rib 8157h. The flange portion 8150j of a magnetic material and a magnetic element 8159 may come into contact with each other more firmly. With reference to fig.60, a method for assembling the connecting member 8150.
As shown in fig.60, the pin 155 enters into the receiving space 8150g connecting member 8150, and 8150 of the connecting element is introduced into the space portion 8150b of the drum 8157 of the support member. At this point, it is preferable that the distance D12 between the edge of the inner surface of the retaining rib 8157e of the support member 8157 and the magnetic member 8159 was greater than the maximum outer diameter of the driven portion 8150a ⌀D10. In addition, the distance D12 is smaller than the maximum outer diameter of the drive ⌀D11 8150b. Due to this assembly of the support member 8157 is simplified. Thus, improved build quality. However, the present invention is not limited to this feature.
With reference to fig.62 to be described the operation of coupling (cartridge mounting part of the operation) for coupling the coupling member 8150 with drive shaft 180. In fig.62 (a1) and (b1) shows the state immediately before the clutch, and on fig.62 ( a2) and (b2) shows the state of completion of the coupling.
As shown in fig.62 (a1) and (b1), the axis L2 the coupling member 8150 beforehand inclined downstream relative to the direction X4 relative to the axis L1 force of the magnetic member (supporting member) 8159 (pre angular position of the clutch).
Further, the free end surface 180b or the free end of the finger 182 contacts the receiving surface 8150f of the drive shaft connecting member 8150 by moving the cartridge B in the direction X4 installation. The axis L2 is set so that it can virtually coincide with the axis L1 by the action of the contact force (force to the cartridge mounting). At this time, the flange portion 8150j separates from the magnetic element 8159 and is not in contact with it. Finally, L1 axis practically coincides with the axis L2. The connecting member 8150 is ready to rotate (fig.62 (a2), (b2)) (rotational position, the rotational force transmitting).
Movement as shown in fig.62, may include a circular motion.
As described above, in this embodiment, the inclined state of the axis L2 is supported by the magnetic attraction force of the magnetic member 8159 (maintaining member) pasted on the supporting member 8157. This may be provided by a reliable coupling of the connecting element with the driveshaft.
Embodiment 8
With reference to fig.63, fig.68 will be described an eighth embodiment of the present invention.
This embodiment will be described other means for maintaining a state where the axis L2 is inclined relative to the axis L1.
In fig.63 is a perspective view illustrating the driving side of the cartridge. In fig.64 is presented an exploded perspective view illustrating a state before assembly of the drum support member. In fig.65 is a schematic longitudinal sectional view of the drum shaft, the coupling element and the support element of the drum. In fig.66 is a perspective view illustrating the driving side of the recording apparatus main assembly. In fig.67 is shown a longitudinal sectional view illustrating the disengagement of the locking element. In fig.68 is shown a longitudinal sectional view illustrating the operation of coupling the coupling member to the drive shaft.
As shown in fig.63, the connecting element 6150 is tilted forward relative to the direction (X4) by the installation of the locking element 6159 and 6158 of the spring member.
Referring first to fig.64 with reference to which will be described in the supporting member 6157 reel locking member 6159 and spring member 6158. The support member 6157 has an opening 6157v. Hole 6157v and the locking portion (locking element) 6159a engaged with each other. Due to this free end 6159a1 obturator 6159a protrudes toward the space portion 6157b of the support member 6157. As will be described below, the state of inclination of the connecting member 6150 is supported by this locking portion 6159a. Locking element 6159 is mounted in the space 6157p of the support member 6157. The spring member 6158 is mounted by the boss 6157m hole 6159b and the support member 6157. The spring member 6158 in this embodiment is a cylindrical compression developmental elastic force from about 50 g to 300 g, however, may be used any spring, if it develops a predetermined elastic force. Locking element 6159 may be moved in the cartridge mounting direction X4 adhesion due to the slot 6159d and the rib 6157k.
When the cartridge B is outside the apparatus main assembly A (state where the cartridge B is not mounted in the apparatus main assembly A), the coupling member 6150 is able to tilt. In this state, the free end 6159a1 obturator locking element 6159 is in the range of possible movement of T2 (shaded) of the flange portion 6150j. In fig.64 (a) shows the orientation of the connecting member 6150. Due to such a construction can be supported inclined orientation of the connecting element. In addition, the locking member 6159 abuts against the outer surface 6157q (fig.64 (b)) of the support member 6157 by the force of the compression spring member 6158. This may be maintained stable orientation of the coupling member 6150. For coupling the coupling member 6150 with drive shaft 180, this the locking element is released, allowing the inclination of the axis L2. In other words, as shown in fig.65 (b), the free end 6159a1 obturator is moved in the direction X12 to drain region T2 of possible movement of the flange portion 6150j.
In addition, further described release the locking member 6159.
As shown in fig.66, the guide 6130R1 is provided with an element of 6131, releasing constipation. During installation of the cartridge B in the apparatus A main assembly releasing member 6131 and locking member 6159 are engaged with each other. Because of this, the position of the locking member 6159 in the cartridge B. Thus, the connecting member 6150 is possible to pivotally turn.
With reference to fig.67 will be described in the release of the locking element 6159. As a result of the movement in the direction X4 of the cartridge mounting position 6150A1 The free end of the connecting element 6150 is adjacent to the free end 180b3 of the shaft, releasing member 6131 and the locking element 6159 engages each with friend. At this time, the rib 6131a releasing member 6131 (contact portion) and picks up part of the 6159s the locking member 6159 (the part that senses the amount) in contact with each other. Due to this fixed position of the locking element 6159 inside the main assembly A device (fig.67 (b)). After that, the free end 6159a1 obturator is in the space 6157b of the cartridge by moving to 1-3 mm in the direction of its installation. Therefore, there can be provided the clutch drive shaft 180 and coupling member 6150 with each other, and the connecting member is in the state (s) that enable deflection (pivoting).
With reference to fig.68 will be described operation of coupling the coupling member to the drive shaft and the position of the locking element.
In the state shown in fig.68 (a) and (b), the axis L2 of the connecting element 6150 is inclined in advance toward a direction X4 relative to the axis L1 Position (angular position prior clutch). At this time, the free end position 6150A1 with respect to the direction of the axis L1 closer to the photosensitive drum 107 than the free end 180b3 of the shaft and the free end position 6150A2 is closer to the finger 182 than the free end 180b3 of the shaft. In the state of (a) the locking element (portion receives force) 6159 is in engagement able to perceive the efforts of the member 6131 exempting constipation (contact portion). In the state of (b) the free end 6159a1 obturator is removed from the space portion 6157b. Due to this coupling element 6150 is output from the state support orientation. In particular, there is a possibility of deviation (pivoting) of the coupling element 6150.
Further, as shown in part (c), by moving in the direction X4 of the cartridge installation receiving surface 6150f of the driving shaft coupling member 6150 (contact portion on cartridge side) or protrusion 6150 contacts the free end portion 180b or the finger 182. In accordance with the movement cartridge axis L2 is set so that it can virtually coincide with the axis L1. Finally, as shown in part (d), the axis L1 and L2 are practically identical. Due to this coupling member 6150 is in a state of readiness in rotation (angular position, the rotational force transmitting).
Timing diagram surgery removal of the locking element 6159 is as follows. The locking element 6159 is given after the part of the free end 6150A1 passes by the free end of the shaft 180V3, and before receiving surface 6150f or the projection 6150d comes into contact with the free end portion 180b or finger 182. This connecting member 6150 is not experiencing excessive load, and the mounting operation of the cartridge is guaranteed to execute. The receiving surface 6150f has a conical shape.
In the process of removing the cartridge B from the apparatus main assembly A must move opposite to the cartridge mounting step. In particular, by moving the cartridge B in the direction of removing the free end portion 180b of the drive shaft 180 (engaging portion on main assembly side) presses the receiving surface 6150f (the contact portion on cartridge side). Due to this axis L2 (fig.68 (c)) begins to deviate relative to the axis L1. The connecting member 6150 completely passes by the free end 180b3 of the shaft (fig.68 (b)). Immediately after that picks up part of the 6159s extends from the ribs 6131a. The free end 6159a1 obturator contacts the lower surface of the flange portion 6150j2. Thus, the inclined state is maintained connecting element 6150 (fig.68 (a)). In particular, the coupling member 6150 is pivotally rotated from the angular position, the rotational force transmitting (deviation) in the disengaging angular position.
Movement as shown in fig.67 and 68 may include a circular motion.
As described above, the angular inclination position of the coupling member 6150 is supported by the locking member 6159. With this state maintained slanted connecting member. Thus, the coupling member 6150 more securely mounted relative to the drive shaft 180. In addition, during the rotation of the locking member 6159 does not contact with the connecting member 6150. Therefore, the coupling member 6150 can rotate more stably.
In the above embodiment, the locking member is provided behind with respect to the mounting direction. However, the position of the locking member may be any if the inclination is maintained in a predetermined axial direction of the connecting element.
Also, the present embodiment can be implemented together with the options 4-7. In this case, the operation can be secured mounting and dismounting the coupling member.
Embodiment 9
With reference to fig.69, fig.73 will be described a ninth embodiment of the present invention.
This embodiment will be described another means for tilting the axis L2 relative to the axis L1.
In fig.69 is an enlarged side view of the driving side of the cartridge. In fig.70 is a perspective view illustrating the driving side of the recording apparatus main assembly. In fig.71, a side view illustrating the interaction between the cartridge and the main assembly guide. In fig.72 is shown a side view and a perspective view illustrating the interaction between the main assembly guide and the coupling element. In fig.73 is shown a side view illustrating the installation process.
In fig.69 (a1) and fig.69 (b1) shows side views of the cartridge (the part of the drive shaft), and on fig.69 (a2) and fig.69 (b2) shows side views of the drive shaft cartridge (on the opposite side ). As shown in fig.69, in the state that can be rotated downward relative to the installation direction X4, the coupling member 7150 is mounted to the support member 7157 of the drum. With regard to the direction of inclination, then (as described in connection with embodiment 1) pivotally connecting element may only rotate forwards relative to the direction X4 by the installation of the retaining rib (regulating means) 7157e. Furthermore, on fig.69 (b1) axis L2 the coupling member 7150 is angled relative to the horizontal α60. The following explains the reason that the coupling member 7150 is deflected by an angle α60. On the flange portion 7150j of the connecting element 7150 performs the regulation of the adjusting 7157h1 or 7157h2 as adjusting means. Thus, located in front of (with respect to mounting direction) side of the connecting element 7150 may be pivotally rotated upward at an angle α60.
With reference to fig.70 guide 7130R will be described in the main assembly. Main assembly guide 7130R1 includes a guide rib 7130R1a for guiding the cartridge B through the coupling member 7150 and parts 7130R1e, 7130R1f, positioning the cartridge. Rib 7130R1a is on the path of the cartridge mounting B. Rib 7130R1a held just prior to the drive shaft 180 in the mounting direction of the cartridge. Rib 7130R1b near the driving shaft 180 has such a height that does not interfere with engagement of the connecting member 7150 with the drive shaft 180. The main assembly guide 7130R2 includes a guide portion in the main portion and 7130R2a 7130R2c, positioning the cartridge to define the orientation during installation cartridge by the correct direction of the frame B1 cartridge.
The following describes the interaction between the main assembly guide 7130R and the cartridge during the cartridge installation.
As shown in fig.71 (a), on the drive side in contact connecting part 7150s (portion receives force) of the coupling member 7150 with the guide rib (contact portion) 7130R1a cartridge B moves. At this time, the cartridge guide 7157a of the support member 7157 is separated from the guide surface to define a gap 7130R1c n59. Consequently, to the connecting member 7150 is applied weight of the cartridge B. On the other hand, as described above, the connecting member 7150 is set so that it can be pivotally rotated in a direction in which a party to the front with respect to the mounting direction, is deflected upwards at an angle α60 relative to the direction (X4) installation. Thus, the driven portion 7150a of the connecting member 7150 is deflected downward (in a direction at an angle α60 from the mounting direction) with respect to the direction X4 unit (fig.72).
The following explains the reason for the deviation of the connecting element 7150. The connecting portion 7150s accepts a reaction force corresponding to the weight of the cartridge B from the guide rib 7130R1a. This reaction force is applied to the adjustment of the 7157h1 7157h2 or to adjust the direction of the tilt. Due to this connection element is deflected in the predetermined direction.
Here in the movement of the connecting portion of the guide rib 7150s 7130R1a appears the friction force between the connecting part of the 7150s and the guide rib 7130R1a. Thus, the coupling member 7150 receives a force in a direction opposite to the direction X4 installation due to this frictional force. However, the friction force created in accordance with the coefficient of friction between the connecting part of the 7150s and the guide rib 7130R1a, less than the force for pivoting the coupling member 7150 with respect to the forward direction X4 setting the value of the reaction force. Thus, the connecting element 7150 overcomes the frictional force and pivotally rotated downward relative to the installation direction X4.
Adjustment of the 7157r (fig.69) of the support member 7157 can be used as a means of adjusting the tilt. Thus, it adjusts the direction of inclination of the connecting element in various positions relative to the direction of the axis L2 by the regulating section 7157h1, 7157h2 (fig.69) and the regulating section 7157r. This makes it possible to more reliably adjust the direction of the deviation of the connecting element 7150. However, he always deflected by an angle approximately equal to α60. However, adjustment of the direction of inclination of the connecting element 7150 can be carried out differently.
The guide rib is located in the space 7130R1a 7150s, formed part of the slave 7150a, 7150b, and a part of the drive connecting portion 7150s. Thus, during the installation of the longitudinal position (in the direction of the axis L2) inside the apparatus main assembly A adjusts the coupling member 7150 (fig.71). The longitudinal position of the adjustable connecting element 7150 may be more securely coupled to the drive shaft 180.
Next, an operation for engaging the coupling member 7150 with drive shaft 180. This operation is actually the same as in Embodiment 1 (Figure 22). With reference to fig.73 described interaction between the guide 7130R2 main assembly, the support member 7157 and the connecting element 7150 in a process in which the clutch coupling element with the drive shaft 180. While the connecting portion is in contact with the edge 7150s 7130R1a, the cartridge guide 7157a is separate from the guide surface 7130R1c. Due to this coupling element 7150 deviates (fig.73 (a), fig.73 (d)) (the angular position prior clutch). During the passage of the free end 7150A1 of the inclined coupling member 7150 by the free end 180b3 of the shaft connecting portion 7150s extends from the guide rib 7130R1a (fig.73 (b1), fig.73 (e1)). At this time, the cartridge guide 7157a passes the guide surface 7130R1c and comes into contact with a positioning surface sloping surface 7130R1e through 7130R1d (fig.73 (b), fig.73 (f)). Thereafter, the receiving surface 7150f or the projection 7150d contacts to the free end portion 180b or the finger 182. In accordance with the cartridge mounting operation, the axis L2, is substantially coincident with the axis L1, and the center shaft of the drum is aligned with the center of the coupling member. Finally, as shown in fig.73 (c) and fig.73 (f), the axis L1 and L2 coincide with each other. The connecting member 7150 is in a state of readiness in rotation (angular position, the rotational force transmitting).
In the process of extracting the cartridge B from the apparatus main assembly A next step is almost the opposite clutch operation. In other words, the cartridge B moves in the direction of its removal. Thanks to this free end portion 180b presses the receiving surface 7150f. Because of this, the axis L2 begins to deviate relative to the axis L1. The free end portion 7150A1, located behind (in relation to the direction of removal of the cartridge) moves in the free end of the shaft 180b during the removal operation of the cartridge and the axis L2 is deflected until the upper free end portion A1 reaches the free end 180b3 of the drive shaft. The connecting member 7150 in this state (fig.73 (b)) passes completely free end portion 180b3. After this part of the 7150s connecting contacts the coupling member 7150 with a rib 7130R1a. Due to this connecting member 7150 comes out of tilt forward relative to the mounting direction. In other words, the connecting member 5150 is rotated from the angular position, the rotational force transmitting (deviation) in the disengaging angular position.
As described above, the connecting element is rejected when the user sets the cartridge in the main assembly, and the coupling is carried out with the drive shaft of the main assembly. Thus there is no need for special funds to support the orientation of the connecting element. However, with the present embodiment may be used to support the construction of orientation, as in the embodiments 4-8.
In this embodiment, the connecting element is deflected in the cartridge mounting direction under application of weight to the guide rib. However, further it can be used not only the weight but also the spring force, etc.
In this embodiment, the connecting member connecting the deflected part of the connecting element, said force sensing. However, the present invention is not limited to this example. For example, if the coupling member is deflected under the force of the contact portion of the main unit, the contact of the contact portion may be a part other than the connecting portion.
Also, the present invention may be practiced with any of the embodiments 4-8. In this case, the clutch can be ensured and uncoupling the drive shaft from the coupling member.
Option 10
Next, with reference to fig.74-81 will be described a tenth embodiment of the present invention.
This embodiment will be described another means for tilting the axis L2 relative to the axis L1.
In fig.74 is a perspective view illustrating the driving side of the main assembly of the apparatus. With reference to fig.74 will be described in the main assembly guide and means biasing the connecting member.
The present invention is effectively applicable to the case where the frictional force described in Embodiment 9 is greater than the reaction force caused by pivotally connecting member 7150-turning forward (in the direction X4 relative to the installation). Specifically, for example, even if the friction force increases due to the effect of friction on the connecting portion or the main assembly guide according to this embodiment, the coupling member can surely turn to an angular position prior clutch. Main assembly guide 1130R1 includes a guide surface 1130R1b for guiding the cartridge B through the cartridge guide 140R1 (Figure 2) 1130R1c guide rib, which guides the connecting member 150, and a portion 1130R1a, positioning the cartridge. 1130R1c guide rib located on the trajectory of the cartridge installation guide rib B. 1130R1c passes just before the drive shaft 180 in the cartridge mounting direction. Rib 1130R1d, provided next to the drive shaft 180 has a height not interfering with adhesion of the connecting member 150.
Part 1130R1c rib cut. 1130R1c mounted on edge guide slider 1131 of the main assembly, which can slide in the direction of arrow W. The slider 1131 is pressed against the elastic force of the urging spring 1132. The slider 1131 adjacent to the contact surface of the guide 1130R1 1130R1e main assembly defines a definite position. In this state, the slider 1131 projects above the guide rib 1130R1c.
The guide 1130R2 of the main assembly has a portion 1130R2b to define the orientation of the cartridge during installation in the frame by means of a cartridge and parts B1 1130R2a, positioning the cartridge.
Referring to fig.75-77 described interaction between the guide 1130R1, 1130R2 slider main assembly 1131 and the cartridge B during the installation of the cartridge B. In fig.75 shows a side view from the side of the drive shaft 180 of the main assembly (Figures 1 and 2) and on fig.76 shows its perspective view. On fig.77 is a sectional view along the line ZZ in the fig.75.
As shown in fig.75, on the drive side in contact with the cartridge guide 1440R1 surface 1130R1b cartridge guide moves. At this time, as shown in fig.77, the connecting portion 150c is separated from the edge guide by a distance 1130R1c n1. Thus, the connecting member 150 is not applied force. As shown in fig.75, the coupling member 150 is regulated by the regulating portion 140R1a on the upper surface of the left side. Thus, the coupling member 150 can be rotated freely only in the direction (X4) installation.
Next, with reference to fig.78-81 will be described an operation for moving the slider from the activated position when the coupling member 150 contacts to the slider 1131 in the retracted position. In fig.78 and 79, the connecting member is engaged with the apex 1131b of the slider 1131 and the slider 1131 is in the retracted position. The connecting portion 150c and the inclined surface of the projection of the slider 1131 1131a contact with each other due to the movement of the connecting member 150 only in the direction (X4) installation. With this slider is pushed in 1131 and moved to the retracted position.
Referring to fig.80-81 will be described the operation after connecting member 150 hit the top of the slider 1131b 1131. In fig.80 and 81 shows the state after the coupling member 150 hit the top of the slider 1131 1131b.
When the coupling member 150 slides over the top of 11131b, the slider 1131 tends to return from the retracted position to the activated position by the elastic force of the urging spring 132. In this case, the portion of the connecting part 150c connecting member 150 receives a force F from the inclined surface of the slider 1131s 1131. In particular, inclined surface acts as part of the 1131s, a force is applied, and also acts as part of perceiving the force of the connecting portion to 150c for the perception of effort. As shown in fig.80, the portion which receives the force is provided behind the connecting portion 150c with respect to the cartridge mounting direction. Thus, it can provide a smooth deflection of the connecting member 150.
As shown in fig.81, the force F is divided into component force F1 and the component force F2. At the same time, the upper surface of the connecting member 150 is regulated by the regulating portion 140R1a. Thus, the connecting element 150 is deflected in the direction X4 installation component force F2. In particular, the connecting member 150 is diverted to the angular position of the pre-coupling. This makes it possible coupling connecting member 150 to the drive shaft 180.
In the above embodiment, the connecting portion receives the force and the coupling member is deflected. However, the present invention is not limited to this example. For example, if the coupling member may be pivotally rotated by the force of the contact portion of the main assembly, the contact portion may contact the other part, distinct from the connecting part.
Also, the present invention can be used with any of embodiments 4 to 9. In this case, the clutch can be ensured and the disengagement of the connecting element from the drive shaft.
Option 11
Next, with reference to fig.82-84 will be described an eighth embodiment of the present invention.
This embodiment will be described the configuration of the connecting element. On fig.82-84 (a) are perspective views of the connecting elements, and fig.82-84 (b) these types of connectors in the section.
In the previous embodiments, the surface receiving the drive shaft and the bearing surface of the connecting element have a conical shape. However, in this embodiment, another configuration to be described.
The connecting member 12150, as shown in fig.82, basically comprises three parts, by analogy with the coupling element shown in Figure 8. In particular, as shown in fig.82 (b), the coupling 12150 comprises a driven element portion 12150a for receiving the drive force from the drive shaft, the drive portion 12150b for transmitting the driving force to the drum shaft and the connecting part 12150s, which connects the driven portion 12150a and a driving portion 12150b with each other.
As shown in fig.82 (b), the driven portion 12150a has a portion 12150m as an opening for inserting the drive shaft, which extends in the direction of the drive shaft 180 about the axis L2, and the driving portion 12150b has a portion 12150v as an opening for inserting the drum shaft, which is in the direction of the shaft 153 of the drum. The opening 12150m and an opening 12150v are formed respectively receiving surface 12150f of the drive shaft having a convergent shape, and the drum bearing surface 12150i having a convergent shape. Receiving surface 12150f and receiving surface 12150i have recesses 12150h, 12150z, as shown in fig.82. During transmission, the rotational force 12150z recess is opposite the free end of the drive shaft 180. More specifically, the deepening 12150z covers the free end of the drive shaft 180.
With reference to fig.83 be described connecting member 12250. As shown in fig.83 (b), the driven portion 12250a has a portion 12250m as an opening for inserting the drive shaft, which extends in the direction of the drive shaft 180 about the axis L2, and a drive 12250b is a part of the 12250v a hole for inserting the shaft of the drum, which is in the direction of the drum shaft 153 relative to the axis L2.
The opening 12250m and an opening 12250v are formed respectively receiving surface 12250f of the drive shaft and the bell-shaped bearing surface 12250i drum having a bell shape. Receiving surface 12250f and receiving surface 12250i form recesses 12250h, 12250z, as shown in fig.83. While transmitting rotational force recess 12250z engaging with the free end portion of the drive shaft 180. With reference to fig.84 be described connecting member 12350. As shown in fig.84 (a), the driven portion 12350a includes projections 12350d1, 12350d2, 12350d3 , 12350d4, which extend directly from the connecting part 12350s and which extend radially in the direction of the drive shaft 180 about the axis L2.
Part of adjacent protrusions 12350d1-12350d4 forms a receiving portion. Furthermore, behind relative to the direction of rotation provided X7 surfaces 12350e (e1-e4 12350) that receive the rotational force (the portion which receives the rotational force). During rotation, the rotational force from the finger 182 (the portion applied rotational force) is transmitted to the surface of 12350 e1-e4, perceiving rotational force. During the rotational force transmitting recess 12250z is against the free end of the drive shaft, is a projection of the main assembly of the apparatus. In particular, deepening 12250z covers the free end of the drive shaft 180.
It may also be applied to any configuration of holes 12350v, provided that if the result is provided, such as that described in Embodiment 1.
A method for mounting the connecting element matches with the cartridge described in Embodiment 1, and therefore its description is omitted. Also the mounting operation of the cartridge in the main assembly of the apparatus and the operation is removed from the apparatus main body coincide with the same operations in Embodiment 1 (Figures 22 and 25), and therefore their description is omitted.
As described previously, the support surface of the drum at the connecting element has an elongated configuration, and the connecting element may be mounted obliquely in relation to the shaft axis of the drum. Furthermore, the surface connecting member receiving the drive shaft has a flared configuration and can provide deflection of the connecting member without interfering with the drive shaft, in accordance with the operation of installing or removing operation of the cartridge B. In this way and in this embodiment may be provided results similar to those described in the first or second embodiments.
As for the hole configurations 15150m, 12250m and the opening 12150v, 12250v, they can combine the convergent and bell-shaped.
Option 12
With reference to fig.85 will be described a twelfth embodiment of the present invention.
This embodiment differs from Embodiment 1 in configuration of the connecting element. In fig.85 (a) is a perspective view of a connector member having a substantially cylindrical shape, and on fig.85 (b) is a sectional view, when provided with clutch coupling member mounted on the cartridge with the drive shaft.
The edge of the connecting element 9150 on the driving side provided with a plurality of projections led 9150d. Between the projections 9150d, perceiving the driving force receiving portion is provided 9150k, perceiving the driving force. The projection has a surface 9150d 9150e, a receiving rotational force (the portion which receives the rotational force). Leg 9182 drive shaft 9180 that transmits the rotational force (the portion enclosing the rotational force), as will be described below, is contacted with the surface 9150e, the receiving rotational force. Due to this rotational force is transmitted to the connecting member 9150.
To stabilize the torque transmitted to the coupling member, it is desirable that a plurality of surfaces 150e, sensing the rotational force, are on the same circumference (on the imaginary circle C1 in Figure 8 (d)). Due to this arrangement, the rotational force transmission radius is constant, and the transmitted torque is stable. From the viewpoint of stabilization for transmitting rotary motion is desired to sense surface 9150e are in diametrically opposed positions (180 degrees). The number of sensing surfaces 9150e can be any, if the host can take part 9150k finger 9182 of the drive shaft 9180. In this embodiment, the number is two. The surfaces 9150e, perceiving the rotational force may not be on the same circle, or may not be in diametrically opposite positions.
On the cylindrical surface of the coupling member 9150 is provided receiving hole 9150g. This hole has a surface 9150g 9150h for transmitting rotational force (the part that transmits rotational force). Actuating finger 9155 (element-receiving rotational force) (fig.85 (b)) of the drum shaft as will be described below, is contacted with the surface of 9150h to transmit a rotational force. Due to this rotational force is transmitted to the photosensitive drum 107.
Similar projections 9150d is desirable that the surface 9150h for transmitting a rotational force are diametrically opposed on the same circle.
The following describes the structure of the drum shaft 9153 and drive shaft 9180. In the embodiment 1, the cylindrical end has a spherical surface. However, in this embodiment, the diameter of the spherical end portion 9153b of the drive shaft 9153 is greater than the diameter of the main part 9153a. With this structure, even if the connecting member, as shown here, has a cylindrical shape, it can be pivotally rotated relative to the axis L1. In other words, between the drum shaft 9153 and the connecting member 9150 is provided a gap g, as shown in the figure, whereby the connecting element 9150 may be pivotally rotated (deflected) relative to the shaft 9153 of the drum. The configuration of the drive shaft 9180 is actually the same as the configuration of the drum shaft 9150. In other words, the free end portion 9180b has a spherical surface with a diameter greater than the diameter of the main part 9180a of the cylindrical shape. When this finger 9182 that actually passes through the center of the free end portion 9180b, having a spherical surface that transmits the rotational force to the surface 9150e connecting member 9150, a receiving rotational force.
9150 drum shaft and the spherical surface of the drive shaft 9180 are in engagement with the inner surface of the connecting element 9150r 9150. Thus, given the relative position between the drum shaft 9150 and the connecting element 9150 of the drive shaft 9180. orientation during assembly and disassembly of the connecting element 9150 is the same as in 1 embodiment, and therefore its description is omitted.
As described above, the connecting member has a cylindrical shape, and therefore may be a predetermined position with respect to the direction perpendicular to the axis L2 the coupling member 9150, with respect to the drum shaft or the drive shaft. Next, a modified example of the coupling member. In the configuration of the coupling member 9250 as shown in fig.85 (c), combined cylindrical and conical shape. In fig.85 (d) is a sectional view of the connecting element of this modified example. The driven portion 9250a of the connecting member 9250 has a cylindrical shape, and its inner surface 9250r engages with the spherical surface of the drive shaft. In addition, it has an adjacent surface 9250q and can perform positioning in relation to the axial direction between the connecting element 9250 and the drive shaft 180. The driving portion 9250b has a conical shape, and like the embodiment 1, the position relative to the shaft 153 of the drum bearing surface 9250i given drum.
Configuration of connecting member 9350, as shown in fig.85 (f), combines a cylindrical and a conical shape. In fig.85 (f) is a sectional view of this modified example the driven portion 9350a where the connecting member 9350 has a cylindrical shape, and the inner surface 9350r engages with the spherical surface of the drive shaft 180. The positioning in the axial direction is performed by clamping of the spherical surface of the drive shaft 9350q edge portion, formed between the cylindrical portions having different diameters.
Configuration of connecting member 9450, as shown in fig.85 (g), combines a spherical surface, cylindrical and conical shape. In fig.85 (h) is a sectional view of this modified example the driven portion 9450a where the connecting member 9450 has a cylindrical shape, and the inner surface 9450r engages with the spherical surface of the drive shaft 180. A spherical surface of the drive shaft 180 is in contact with the spherical surface 9450q, which a part of said spherical surface. Due to this situation can be set in relation to the direction of the axis L2.
In this embodiment, the connecting member has a substantially cylindrical surface, and the free end portions of the drum shaft or the drive shaft have the spherical configurations in addition; wherein, as mentioned above, of a diameter greater than the diameter of the main part of the drum shaft or the drive shaft. However, the present invention is not limited to this example. The connecting member has a cylindrical shape and the drum shaft or the drive shaft has a cylindrical shape, the diameter of the drum shaft or the drive shaft is less than the inner diameter of the inner surface of the connecting member to the extent that there is no disengagement of the finger from the coupling member. Due to this coupling member may be pivotally rotated relative to the axis L1 and can be tilted without hindering the movement of the drive shaft in accordance with the operation of installing or removing operation of the cartridge B. In this embodiment can also be attained effects similar to embodiment 1 or embodiment 2.
In this embodiment, although a configuration of the connecting element has been described with an example of combination (plus cylindrical tapered) shape possibile opposite example. In other words, the side of the drive shaft may have a conical shape and the drum shaft side may be cylindrical in shape.
Option 13
Referring now to be described fig.86-88 thirteenth embodiment of the present invention.
The present invention differs from Embodiment 1 by the mounting operation of the drive shaft connecting member and the structure. In fig.86 is a perspective view showing the configuration of the connecting element 10150 of the present embodiment. In the configuration of the connecting element 10150 is combined cylindrical and conical shape which have been described in the embodiment 10. Also, on the free end of the connecting element 10150 provides a tapered surface 10150r. On the surface on the opposite side of the projection 10150d, perceiving the driving force (with respect to the direction of the axis L1), has a surface 10150s, perceiving biasing force.
With reference to fig.87 will be described the construction of the connecting element.
10150r inner surface and a spherical surface 10153b of the drum shaft 10153 10150 coupling member are engaged with each other. Between receiving surface 10150s, described previously, and the bottom surface 10151b of the drum flange 10151 is 10634. With the biasing element connecting member 10150 it is pushed in the direction of the drive shaft 180. Like the above embodiments on the side of the drive shaft 180 of the flange portion 10150j with respect to the direction of the axis L1 is provided retaining rib 10157e. Through it prevents disengagement of the coupling 10150 from the cartridge member, the inner surface 10150r connector element 10150 is cylindrical. Thus, it is possible to move in the direction of the axis L2.
Fig.88 illustrates the orientation of the connecting member when it is engaged with the drive shaft. In fig.88 (a) is a sectional view of the connecting element 150 of Embodiment 1, and in fig.88 (c) shows a sectional view of the coupling member 10150 of the present embodiment. In fig.88 (b) is a sectional view before reaching the state shown in fig.88 (c), the installation direction shown by arrow X4, and dash-dot line L5 is parallel to the mounting direction from the free end of the drive shaft 180.
For coupling the connecting member to the drive shaft 180 is necessary that the front portion 10150A1 (with respect to mounting direction) free end passed the free end portion 180b3 of the drive shaft 180. In the case of Embodiment 1, the axis L2 is deflected through an angle greater than the angle α104. Due to this coupling member is moved to a position in which the free end portion 150A1 is not a hindrance to the free end portion 180b3 (fig.88 (a)).
On the other hand, as for the connecting member 10150 of the present invention, in a non-engagement with the drive shaft 180, the coupling member takes the position nearest to the drive shaft 180, thanks to the restoring force of the urging member 10634. In this state, when the connecting member 10150 moves in Position direction X4, of the drive shaft 180 contacts the cartridge B at the tapered surface 10150r connector element 10150 (fig.88 (b)). At the same time, a tapered surface 10150r force is applied opposite to the direction X4, and therefore connecting member 10150 is given in the longitudinal direction X11 exposed component of said force. The free end portion 10153b of the drum shaft 10153 abuts to an adjacent part of the connecting element 10150 10150t, wherein the connecting member 10150 rotates clockwise about the center P1 of the free end portion 10153b (the angular position prior clutch). Due to this free end portion 10150A1 coupling member passes by the free end 180b of the drive shaft 180 (fig.88 (c)). When the drive shaft 180 and the drum shaft 10153 is substantially aligned, the connecting element surface 10150f 10150 perceptible driving force comes into contact with the free end portion 180b due to a restoring force urging spring 10634. This connecting element passes into a state of readiness to rotate (angular position, the rotational force transmitting) (fig.87). With this structure, combined displacement axis L2 in the direction and swiveling movement (deflection operation), and the connecting element is rejected, changing the angular position of the clutch prior to an angular position, the rotational force transmission.
Through this structure, even if the angle α106 (deviation axis L2) is small, the cartridge can be mounted to the main assembly A of the device. Thus, it turns out that the space required for the swivel movement of the connecting element 10150, a little. Consequently, the possibility of expanding the design decisions for the main assembly A of the device.
Rotation of the drive shaft 180 of the connecting member 10150 is the same as in embodiment 1, and therefore its description is omitted. During removal of the cartridge B from the apparatus main assembly A on the free end portion 180b by the force moves the cartridge is pushed surface 10150f conical receiving drive shaft. The connecting member 10150 rotates under the action of this force in the direction of the axis L2, and the connecting element is disconnected from the drive shaft 180. In other words, the conveying operation in the direction of the axis L2, and rotate together (this could include a circular movement), and the connecting member may transfer the angular position of rotational force to turn the state into an angular disengagement.
Option 14
Next, with reference to fig.89-90 will be described in the 14th embodiment of the present invention.
From the embodiment 1, the present embodiment differs clutch operation and structure relating to the drive shaft connecting member.
In fig.89 is a perspective view illustrating a connecting element 21150 and the shaft 153 of the drum. In fig.90 is shown a longitudinal sectional view from the bottom of the main assembly of the apparatus. As shown in fig.89, on the end part of the drive coupling member 21150a 21150 mounted magnetic member 21100. The drive shaft 180 shown in fig.90 comprises magnetic material. Thus, in this embodiment, the magnetic member is deflected 21100 21150 connecting member by magnetic force between the drive shaft and the magnetic material.
First, as shown in fig.90 (a), the connecting element 21150 hardly deviates from the drum shaft 153 and the magnetic member 21100 is positioned in the driving portion 21150a behind with respect to the direction X4 installation.
When the magnetic member 21100 is inserted in the location shown in fig.90 (b), it is attracted to the drive shaft 180. And, as shown in this figure, the connecting member starts to deviate 21150 under the action of its magnetic force.
Further, the front end portion 21150A1 (relative to the direction (X4) Position) of the coupling element 21150 extends past the free end 180b3 of the drive shaft having a spherical surface. The receiving surface 21150f of the drive shaft of the conical shape forming the recess 21150z connecting member 21150, or the driven projection 21150b (contact portion on cartridge side) after passing in contact with said free end portion 180b or 182 (fig.90 (c)).
In accordance with the operation of mounting the cartridge coupling member is deflected so that the axis L2 substantially coincides with the axis L1 (fig.90 (d)).
Finally, the axes L1 and L2 substantially coincide with each other. In this state, the deepening 21150z covers free end portion 180b. The axis L2 is pivotally rotated, and the connecting member 21150 of the angular position of the clutch goes into the preliminary angular position, the rotational force transmission, so that it substantially coincides with the axis L1. Implemented by interlocking coupling element 21150 and the drive shaft 180 (fig.90 (e)).
The movement of the connecting element shown in fig.90 can also include rotation.
It is necessary that the magnetic element 21100 located behind the drive portion 21150a with respect to the direction X4 installation.
Thus, during installation of the cartridge in the apparatus main assembly A must agree phase coupling member 21150. As the method of duplication of the phase coupling member can use the method described an embodiment 2.
The process of obtaining a rotational force of the rotation, and after the installation of the cartridge is the same as in embodiment 1, and therefore its description is omitted.
Option 15
With reference to fig.91 will be described in the 15th embodiment of the present invention.
This embodiment differs from the embodiment 1 by connecting the support element. In one embodiment, the axis L2 the coupling member can be rotated by reacting the free end of the shaft of the drum with the holding rib. On the other hand, in the present embodiment, the axis L2 the coupling member can only rotate under the influence of the drum support member, as described in more detail below.
In fig.91 (a) is a perspective view illustrating a state during mounting of the connecting element. In fig.91 (b) is its longitudinal sectional view. In fig.91 (c) is a perspective view illustrating a state in which the axis deviates from the axis L2 L1. In fig.91 (d) represented by its longitudinal sectional view. In fig.91 (f) is a perspective view illustrating a state of rotation of the coupling member. On fig.91f shows its longitudinal sectional view.
Furthermore, in this embodiment, the shaft 153 of the drum located in the space limited by the inner surface of the space portion 11157b of the support member 1157 of the drum, and the inner surface against the shaft 153 of the drum are provided rib 11157e and the rib 11157r (in different positions relative to the axis L1).
With this construction, the flange portion 11150j and bearing surface 11150i drum regulated by the inner end surface of the cylindrical portion and 11157r1 11153a ribs in a state where the axis L2 rejected (fig.91 (d)). Here on the support member 11157 is provided 11157r1 end surface. In addition, the cylindrical portion 11153a is a part of the drum shaft 11153. And when the axis L2 substantially coincides with the axis L1 (fig.91 (f)), and the flange portion 11150j tapered outer surface of the outer edge 11150q regulated 11157r2 rib 11157e and the rib support member 11157.
Thus, the coupling member 11150 is retained in the supporting member 11157 by selecting a suitable configuration of the support member 11157, whereby the connecting element 11150 may be pivotally mounted relative to the axis L1.
The drum shaft 11153 has on its free end with a portion for transmitting driving force, and hence is not required to have a portion with a spherical surface for adjusting the displacement of the connecting element 11150, and therefore facilitates the handling of the drum shaft 11153.
In addition, the rib 11157e and the rib 11157r arranged offset. Due to this, as shown in fig.91 (a) and fig.91 (b), the coupling member 11150 is mounted to the support member 11157 with a slight slope (direction X12 in said figure), then do not need any special installation; wherein the supporting member 11157, which is temporarily mounted on the connecting member 11150 is mounted on the drum shaft 11153 (X13 direction to fig.91).
Option 16
With reference to fig.92 will be described in the 16th embodiment of the present invention.
This embodiment differs from the embodiment 1 by mounting the connecting element. In one embodiment, the connecting member is located between the free end portion and the retention rib of the drum shaft. In contrast, in this embodiment, the connecting element is carried retention finger 13155 13153 drum shaft which transmits rotational force (element-receiving rotational force). In particular, in this embodiment, the connecting element is held finger 13150 13155. Below is described in greater detail.
In fig.92 is shown the connecting element being held on the end of the photosensitive drum 107 (cylindrical drum 107a), and a part of the driving side of the photosensitive drum 107, and all other details are omitted for simplicity.
In fig.92 (a), the axis L2 practically coincides with the axis L1 in this state, and the connecting member 13150 receives a rotational force from the drive shaft 180 to the driven portion 13150a. Connecting element 13150 transmits the rotational force to the photosensitive drum 107.
As shown in fig.92 (b), the coupling member 13150 is mounted on the drum shaft 13153 so that it can be pivotally rotated in either direction about the axis L1. The configuration of the driven portion 13150a may be the same as the configuration of the driven portion described in connection with fig.82-85 wherein said photosensitive drum unit U13 is assembled into the second frame in the manner described in connection with the embodiment 1. During installation and removal of the cartridge B into / from apparatus main assembly A may be provided with a clutch coupling element and its disengagement from the drive shaft.
Next, a mounting method according to the present embodiment. The free end (not shown) of the drum shaft 13153 is covered by further coupling element 13150, and a hole (not shown) is inserted into the drum shaft 13153 13155 finger (element-receiving rotational force) in the direction perpendicular to the axis L1. Wherein the opposite ends of pin 13155 outwardly protrude beyond the inner surface of the flange portion 13150j. This prevents the output pin 13155 of the receiving opening 13150g. This eliminates the need of adding portion preventing disengagement of the connecting element 13150.
As mentioned above, according to the above embodiment, the drum unit U13 is formed cylindrical drum 107a, the coupling element 13150, the photosensitive drum 107, the drum flange 13151, the drum shaft 13153, 13155 finger for transmitting driving force, etc. However, the structure of the drum unit U13 is not limited to this example.
As a means for tilting the axis L2 to an angular position directly prior clutch before the clutch connecting element carries the drive shaft can be used the above-described embodiments 3-10.
As for the clutch and disengaging the connecting element and the drive shaft, which are coordinated with the installation and removal of the cartridge, these operations coincide with the respective operations in the embodiment 1, and therefore description thereof is omitted.
Also, as has been described in connection with Embodiment 1 (Figure 31), the direction of inclination of the connecting element is governed by the support member. Due to this connecting member can be more securely coupled to the drive shaft.
When using the above described structures connecting element 13150 is part of a photosensitive drum, forming integrally with the photosensitive drum. Thus, processing is facilitated during assembly, and therefore, the quality can be improved assembly.
Option 17
With reference to fig.93 will be described in the 17th embodiment of the present invention.
The difference of this embodiment from Embodiment 1 is the mounting of the connecting element. With regard to one embodiment, the connecting element it is mounted from the free end of the shaft of the drum, so that the axis L2 can be deflected in any direction relative to the axis L1. In contrast, in this embodiment, the connecting member 15150 is mounted directly at the end of the cylindrical drum 107a of the photosensitive drum 107 so that it can deflect in any direction.
More details are described below.
In fig.93 is shown the block electrophotographic photosensitive drum ("Drum Unit») 15 150 U. The connecting element is mounted on the end portion of the photosensitive drum 107 (cylindrical drum 107a). With regard to the photosensitive drum 107, there is shown a part of the driving side, while other details are omitted for simplicity.
The axis L2 on fig.93 (a) substantially coincides with the axis L1. In this state, the coupling member 15150 receives the rotational force from the drive shaft 180 to the driven portion 15150a. The connecting element 1550 transmits the received rotational force to the photosensitive drum 107.
In fig.93 (b) shows an example in which the connecting element 1550 is mounted on the end portion of the cylindrical drum 107a of the photosensitive drum 107 so that it can deflect in any direction. In this embodiment, one end of the connecting member is not mounted on the drum shaft (projection) but into the recess (element-receiving rotational force) provided in the end portion of the cylinder 107a. Connecting element 15150 can also be rotated in either direction about the axis L1. As for the driven portion 15150a, there is shown the configuration described in Embodiment 1, but this configuration may be the driven portion of the connecting member described in embodiment 10 or embodiment 11. As described in connection with one embodiment, the drum unit U is assembled into a second frame 118 (drum frame), and it is designed as a cartridge which can be installed in or removed from the apparatus main assembly.
Thus, the drum unit U is formed by the connecting element 15150, the photosensitive drum 107 (cylindrical drum 107a), the drum flange 15151, etc.
As in the structure for deflecting the axis L2 toward the pre-locked angular position, immediately before the clutch coupling member to the drive shaft 180, it is possible to use any of the embodiments 3 to 9.
Coupling and uncoupling of the coupling member and the drive shaft operated by interconnected with the installation and removal of the cartridge are the same, with the same operations in Embodiment 1. Therefore, description thereof is omitted.
Also, as has been described in connection with Embodiment 1 (Figure 31), is provided with a drum support member and control means to adjust the direction of inclination of the connecting element relative to the axis X. This can provide a more reliable coupling of the connecting element with the driveshaft.
With this construction, the connecting member can be mounted without the drum shaft with the possibility of inclination, as previously described, in any direction relative to the photosensitive drum. Consequently, it is possible to achieve cost reduction.
According to the above construction, the connecting element 15150 is part of the drum units comprising the photosensitive drum as a single unit. Thus, easier handling during assembly of the cartridge can be improved and the quality of the assembly.
Referring now to be further described fig.94-105 present embodiment.
In fig.94 is a perspective view of the process cartridge B-2 which uses the coupling member 15150 of the present embodiment. 15157a outer periphery of the outer end of the support member 15157 drum provided on the drive side, the function of the cartridge guide 140R1.
In addition, at one longitudinal end (drive side) of the second frame section 120 is actually above the cartridge guide 140R1, which protrudes outwardly, is provided a cartridge guide 140R2, also projecting outward.
The process cartridge is supported (with the possibility of removal) in the apparatus main assembly by these guides 140R1, 140R2, and the cartridge guide (not shown) provided on the driven side is not. In particular, the cartridge B moves to the main assembly of the apparatus A in a direction substantially perpendicular to the axis L3 of the drive shaft 180 when it is mounted in the apparatus main assembly A2 or removed from said assembly.
In fig.95 (a) is a perspective view of a coupling member with the driving side on fig.95 (b) is a perspective view of the coupling member from the photosensitive drum, and on fig.95 (c) shows a coupling member from a direction perpendicular to the axis L2. In fig.95 (d) is a side view of the connecting member with the driving side on fig.95 (f) shows a side view of the photosensitive drum, and on fig.95 (f) is a sectional view along the line S21-S21 in FIG. 95 (d).
Connecting element 15150 is coupled to the drive shaft 180 in a state in which the cartridge B is mounted into the mounting portion 130a provided in the main assembly A of the device. When removing the cartridge B from the mounting portion 103a, it is disengaged from the drive shaft 180. In the state where the cartridge is engaged with the drive shaft 180, the coupling member 15150 receives the rotational force from the motor 186 and transmits the rotational force to the photosensitive drum 107.
Connecting element 15150 mainly comprises three parts (fig.95 (c)). The first part is a driven portion 15150a (part of the set in motion), which has a surface 15150e (15150e1-15150e4), a receiving rotational force (the portion which receives the rotational force) to be coupled to the drive shaft 180 and receiving a rotational force from the finger 182. The second part a driving portion 15150b, which carries the clutch drum flange 15151 (finger 15155 (element that accepts the rotational force)) and transmits the rotational force. The third part is a connecting portion 15150s, which connects the driven portion 15150a and the driving portion 15150b. The materials for these parts include resinous materials, such as polyacetal, polycarbonate, and PPS. However, to increase the stiffness element in the resin material depending on the required load torque may be made of glass fiber, carbon fiber, etc. In addition, the rigidity can be further improved by introducing a resin material into the above metal and metal, etc. It can be made all the connecting element. The driven portion 15150a is provided portion 15150m as an opening for inserting the drive shaft, which has a flared shape as a cone about the axis L2, as shown in fig.95 (f). The opening 15150m forms deepening 15150z, as shown in the figure.
Drive part 15150b has a spherical surface 15150i to accommodate the drive shaft. Connecting element 15150 may be pivotally rotatable between an angular position, the rotational force transmission, and the angular position pre clutch (disengaging angular position) relative to the axis L1 under the influence of the receiving surface 15150i. This ensures that clutch connecting member 15150 with the drive shaft 180 irrespective of the rotation phase of the photosensitive drum 107 without interference from the free end portion 180b of the drive shaft 180. The driving portion 15150b has the convex configuration as shown in the figure.
By circle (imaginary circle C1 in Figure 8 (d)) end surface of the driven portion 15150a is provided a plurality of projections 15150d1-d4. At the same time intervals between adjacent protrusions 15150d1, 15150d2, 15150d3 15150d4 and perform the function of receiving portions 15150k1, 15150k2, 15150k3 and 15150k4. Each interval between the adjacent projections 15150d1-d4 greater than the outer diameter of the pin 182 so that the pin 182 (the portion applied rotational force) is in these ranges, which are the receiving portion 15150k1-k4. Also on fig.95 (d) clockwise from the surface of the projection 15150d provided 15150e1-15150e4 perceiving the rotational force (the portion which receives the rotational force) facing in a direction intersecting with the direction of the rotational movement of the connecting element 15150. When you rotate the drive shaft 180 thumb 182 adjacent or in contact with one of the surfaces 15150e1-15150e4 perceiving the driving force. Surface 15150, perceiving the driving force, is interested in the side surface of the finger 182, and rotates the coupling member 15150 relative to the axis L2.
Drive part 15150b has a spherical surface. The coupling element 15150 can be rotated between the angular position of the rotational force transmitting angular position and pre-adhesion (or disengaging angular position) due to this spherical surface irrespective of the rotation phase of the photosensitive drum 107 in the cartridge B (deviations). In the illustrated example, spherical surface is a spherical bearing surface 15150i drum whose axis is aligned with the axis L2. 15150g hole for attaching the finger 15155 (part transmitting rotational force) runs through its center.
With reference to fig.96 will be described as an example of the drum flange 15151 on which is mounted a connecting member 15150. In fig.96 (a) shows a side view of the drive shaft, and in fig.96 (b) is a sectional view along line S22-S22 on fig.96 (a).
Holes 15151g1, 15151g2, shown in fig.96 (a) have the shape of grooves extending circumferentially of the flange 15151. By the opening and the opening 15151g2 15151g1 an opening 15151g3. During installation, the coupling member flange 15151 15150 15151g1 in these holes, located 15151g2 finger 15155. In addition, in the opening 15151g3 located bearing surface 15150i drum.
When using the above-described structures, regardless of the rotational phase of the photosensitive drum 107 (irrespective of the stopping pin 15155) in the cartridge B-2 connecting element 15150 can rotate (vary) between the angular position transmitting rotational force and angular pre-locked position (or angular position of unlatching ).
In addition, before fig.96a (clockwise) holes 15151g1, 15151g2 provided surface 15151h1, 15151h2 for transmitting rotational force (the elements that receive the rotational force). The lateral surface of the pin connector element 15150 15155 transmitting the rotational force (the portion transmitting rotational force), contacts the surface 15151h1, 15151h2, transmit the rotational force. This rotational force is transmitted from the coupling 15150 to the photosensitive member drum 107. Here, the transmitting surface 15151h1, 15151h2 are turned in the circumferential direction of the rotational movement of the flange 15151. Because of this conveying surface 15151h1, 15151h2 are pushed to the side surface of the pin 15155. In the state in which the axis L1 and l2 actually coincide, the coupling member 15150 rotates about the axis L2.
In this construction, the flange 15151 has a receiving part 15151h1, 15151h2, and so it serves as a member of the perceiver rotational force.
The retaining portion 15151i, shown in fig.96 (b), the function of retaining the coupling 15150 to the flange element 15151 so that the connecting member may be pivotally rotatable between an angular position of the rotational force transmitting angular position and pre-adhesion (or disengaging angular position); In addition, it performs a function of adjusting the movement of the connecting element axially 15150 L2. Therefore, the hole has a diameter 15151j ⌀D15, the smaller the diameter of the bearing surface 15150i. Thus, the movement of the connecting member is restricted flange 15151. This prevents disengagement of the connecting element 15 150 from the photosensitive drum (cartridge).
As shown in fig.96, the driving portion 15150b 15150 connecting element is in engagement with a recess provided in the flange 15151.
In fig.96 (c) is a sectional view illustrating a process of mounting the coupling member on the flange 15151 15150.
Driven portion 15150a and joining of the 15150s are inserted into the flange 15151 in the direction X33. In the direction of arrow X32 introduced 15150r positioning element (driving portion 15150b), having a bearing surface 15150i. Finger 15155 penetrates the fixing hole of the 15150s connecting 15150r. Due to this positioning element is fixed in the connecting 15150r of the 15150s.
In fig.96 (d) is a sectional view illustrating a process in which the connecting member is attached to the flange 15150 15151.
The connecting member 15150 is moved in the direction X32, so that the bearing surface 15150i is in contact or is close to the retaining portion 15151i. Material 15156 retention portion inserted in the direction of arrow X32 and fixed in the flange 15151. In this method, mounting the connecting member 15150 is mounted to the flange 15151 with the possibility of free running (gap) to the positioning member 15150r. Due to this coupling element may change its direction.
Like the projection 15150d desirable that the surface 15150h1, 15150h2 for transmitting a rotational force of circumferentially arranged diametrically opposite each other (180 degrees).
With reference to fig.97 and 98 will be described a construction of a photosensitive drum unit U3. In fig.97 (a) is a perspective view of the drum unit from the driving side, and in fig.97 (b) is a perspective view of the driving side does not. In fig.98 is a sectional view along the line S23-S23 on fig.97 (a).
A drum flange 15151 mounted to the coupling element 15150 is fixed to one end of the photosensitive drum 107 (cylindrical drum 107a), so that the transmitting portion is open. The flange 152 of the drum with no driving side is fixed to the other end of the photosensitive drum 107 (cylindrical drum 107a). By such fixation methods include crimping, bonding, welding or the like
In a state in which the drive side is supported by the supporting member 15157 and are not supported by the drive side finger supporting drum (not shown), the drum unit U3 is supported by the second frame 118 rotatably. It combines into a single unit with the process cartridge by setting the first frame unit 119 in the second frame block 120 (fig.94).
Under reference numeral 15151s shown pinion that performs a function to transmit the rotational force received by the coupling member 15150 from the drive shaft 180 to the developing roller 110. The gear 15151s molded together with the flange integrally 15151.
The drum unit U3 described in this embodiment, comprises a connecting element 15150, the photosensitive drum 107 (cylindrical drum 107a), and a drum flange 15151. The peripheral surface of the cylindrical drum 107a coated with a photosensitive layer 107b. In addition, the drum unit comprises the photosensitive drum coated with the photosensitive layer 107b, and a connecting member mounted on one of its ends. The design of the connecting member is not limited to the construction described in this embodiment. For example, the connecting member may be constructed as previously described embodiments of the connecting element. Furthermore, it may have a different construction if it produces the positive results of the present invention.
Here, as shown in fig.100 connecting member 15150 is mounted so that its axis L2 can be deflected in any direction relative to the axis L1. 100 (a1) - (a5) are views from the side of the drive shaft 180, and 100 (b1) - (b5) are perspective views of the connecting element. On fig.100 (b1) - (b5) are views in partial section of substantially all of the connecting element 15150, in which a portion of the flange 15151 is cut out for better illustration.
100 (a1), (b1) axis L2 coincides with the axis L1. When the connecting member 15150 is deflected upward from this state, it is in the state shown in 100 (a2), (b2). As shown in this figure, when a deviation of the connecting element towards the hole 15150 15151g 15155 finger is moved along the opening 15151g. As a result, the connecting element 15150 deflected relative to the axis AX, perpendicular to the opening 15151g.
100 (a3), (b3) coupling element 15150 is tilted to the right. As shown in this figure, when a deviation of the connecting element 15150 in a direction perpendicular to the opening 15151g, the coupling member rotates in the opening 15151g. 15155 Finger rotates around the axis line AY finger 15155.
100 (a4), (b4) and 100 (a5), (b5) shows the state in which the coupling element 15150 deflected to the left, and the state in which it is deflected downwards. As previously described the axis of rotation AX, AY, here the description thereof is omitted for simplicity. Rotation in a direction different from the directions of inclination (e.g., rotate 45 degrees, shown at 100 (a1)) is provided by a combination of rotations around the axes AX and AY. Thus, it may be ensured axis L2 incline in any directions relative to the axis L1.
15151g hole extends in a direction intersecting the direction of protrusion pin 15155.
Between the flange 15151 (element-receiving rotational force) and the connecting element 15150 gap is provided as shown in the figure. With such a construction as described above, connecting element 15150 may be pivotally rotated in all directions.
In particular, the transmitting surface 15151h (15151h1, 15151h2) (part of transmitting rotational force) is in position with respect to the fingers 15155 (part transmitting rotational force). Finger 15155 can move relative to the transmitting surface 15151h. Transmitting surface 15151h and the pin 15155 are linked or adjacent to each other. To perform the movement between the pin 15155 and the transmitting surface 15155h gap is provided. Thanks to him connecting element 15150 may be pivotally rotated about the axis L1 in all directions. The connecting member 15150 is mounted on the end of the photosensitive drum 107 in this manner.
Here, it was mentioned that the axis L2 is pivotable to rotate in either direction relative to the axis L1. However, not necessary that the connecting element 15150 can linearly rotated by a predetermined angle in the range of 360 degrees. This applies to all the connecting elements in previously described embodiments.
In this embodiment, the opening 15151g done little advanced in the direction of rotation. With this construction, when the axis L2 is deflected relative to the axis L1, even in case of failure of its linear offset by a predetermined angle, the coupling element 15150 can be deflected by a predetermined angle by a small rotation about the axis L2; in other words, selects the appropriate clearance for the opening 15151g in the direction of rotation if necessary.
Thus, the coupling element 15150 can be pivotally rotated in all directions. Consequently, the coupling element 15150 can be rotated substantially around the entire circumference of the flange relative 15151.
As has been described previously (fig.98), the spherical surface 15151i 15150 connecting member contacts the retaining portion 15151i (recess portion). This ensures alignment of the center P2 of the spherical surface 15150i with the axis of rotation and mounting of the connecting element provided 15150. In particular, the axis L2 the coupling member 15150 is pivotable irrespective of the phase of the rotated flange 15151.
For coupling the connecting member 15150 with the drive shaft 180 the axis L2 is deflected downward relative to the mounting direction of the cartridge B-2 relative to the axis L1 immediately before the coupling. In particular, as shown in fig.101 axis L2 relative to the axis L1 rejected, so that the driven portion 15150a is ahead relative to the direction X4 installation. On fig.101 (a) - (c), the driven portion 15150a is ahead relative to the direction X4 in any case.
In fig.94 shows a state in which the axis L2 relative to the axis L1 rejected. On fig.98 is a sectional view along the line S24-S24 in the fig.94. As shown in fig.99, is possible thanks to the above construction, the transition from a state where the axis L2 is rejected, in a state where it is substantially parallel to the axis L1. Thus the maximum possible angle of inclination α4 (fig.99) between the axis L1 and the axis L2 is the angle during deflection, while the driven portion 15150a or the connecting part 15150s comes into contact with the flange 15151 or the bearing member 15157. The value of this angle must be such that it was possible to provide a clutch coupling element and its disengagement from the drive shaft during installation of the cartridge into and removing it from the apparatus main assembly.
Immediately before or simultaneously with the cartridge is installed in a predetermined place in the apparatus main assembly A occurs clutch coupling element 15150 and the drive shaft 180 to each other. Referring to fig.102 and 103 will be described operation of the clutch coupling element 15150. In fig.102 is a perspective view illustrating a main portion of the drive shaft and driving side of the cartridge. On fig.103 is a longitudinal sectional view from the bottom of the main assembly of the apparatus.
The installation process cartridge B, as shown in fig.102, the cartridge B is installed in the apparatus main assembly A in the direction (arrow X4) substantially perpendicular axis L3. The axis L2 of the connecting element 15150 advance leans forward (relative to the installation direction X4) with respect to the axis L1 (the angular position prior clutch) (fig.102 (a) fig.103 (a)). Due to this inclination of the connecting element (relative to the direction of the axis L1) portion 15150A1 is closer to the photosensitive drum 107 than the free end 180b3 of the shaft relative to the axis L1. The position 15150A2 is closer to the free end of finger 182 than the free end 180b3 of the shaft relative to the axis L1 (fig.103 (a)).
First, the free end of the 15150A1 passes by the free end 180b3 of the drive shaft. Then, the surface 150f conical receiving a drive shaft or the driven projection 150d comes in contact with the free end portion 180b of the drive shaft 180 or the finger 182 to transmit the driving force. Here, the receiving surface 150f and / or protrusion 150d are contact portions on the side of the cartridge. The free end portion 180b and / or 182 are interlocking finger portions on the side of the main assembly. In accordance with the movement of the cartridge B coupling member 15150 is inclined so that the axis L2 practically coincides with the axis L1 (fig.103 (c)). When the position of the cartridge B relative to the main assembly A device finally determined, the drive shaft 180 and the photosensitive drum 107 are in fact aligned. In particular, in the state wherein the contact portion on the cartridge side is in contact with a mating portion on the main assembly side, in response to an input of the cartridge B toward the back side of apparatus main assembly A, the coupling member 15150 is pivotally rotated from the angular position of the preliminary adhesion to an angular position transmitting the rotational force, so that the axis L2, is substantially coincident with the axis L1. Also there clutch coupling element 15150 and the drive shaft 180 to each other (fig.102 (b), fig.103 (b)).
As described above, the connecting member 15150 is mounted so as to permit deviations from the axis L1. It can perform clutch with the drive shaft 180 due to the pivoting coupling element 15150 in accordance with the operation of the installation of the cartridge B.
Also, like the embodiment 1, the above operation clutch coupling element 15150 can be performed regardless of the phase of the drive shaft 180 and the coupling member 15150.
Thus, according to the present embodiment, the connecting member 15150 is mounted to permit rotation or circular motion (swing) relative to the axis L1 actually. Movement shown in fig.103 may include a circular motion.
Next, with reference to the operation will be described fig.104 transmitting rotational force during the rotation of the photosensitive drum 107. The drive shaft 180 rotates with the drum driving gear 181 in the direction X8 (as shown in the figure) under the influence of a rotational force received from the motor 186. The gear 181 is helical gear, and its diameter is about 80 mm. Finger 182, which is an integral part of the drive shaft 180 is in contact with either of the two receiving surfaces 150E (four points) (the portion which receives the rotational force) of the connecting element connecting element 15150. 15150 is rotating under the influence of the finger 182, the pushing receiving surface 150E. The connecting member 15150 15155 finger transmitting rotational force (the engagement part, the part for transmitting the rotational force of the connecting member), contacts the surface 15151h1, 15151h2 transmit a rotational force (element-receiving rotational force). Due to this coupling element 15150 is connected to the photosensitive drum 107 to transfer the driving force. Thus, the photosensitive drum 107 rotates through the flange 15151 by the rotation of the connecting element 15150.
With a small deviation of the axes L1 and L2 of the coupling member 15150 deviates slightly. Due to this coupling element 15150 can rotate without applying large load to the photosensitive drum 107 and drive shaft 180. Thus, during assembly of the drive shaft 180 and the photosensitive drum 107 does not require precise adjustment. Consequently, there may be reduced the manufacturing costs.
With reference to the operation will be described fig.105 dismounting the coupling member 15150 during removal of the process cartridge B-2 from the apparatus main assembly A. On fig.105 is a longitudinal sectional view from the bottom of the main assembly of the apparatus. When removing the cartridge B from the apparatus main assembly A as shown in fig.105, it moves in the direction (direction of the arrow X6) substantially perpendicular to the axis L3. First, like the embodiment 1, during the dismantling of the cartridge B-2 182 transmit rotational finger force of the drive shaft 180 is in either of the two receiving portions 15150k1-15150k4.
After stopping of the photosensitive drum 107 connecting member 15150 moves in an angular position, the rotational force transmission, in which the axis L2 and L1, substantially coincide. When the cartridge B moves toward the front side of the apparatus main assembly A (the direction of removal X6), the photosensitive drum 107 is moved toward said front side. Accordingly, the moving surface 15150f, the receiving shaft, or a projection 15150d (behind in relation to the direction of dismounting the coupling member 151 550) in contact with at least a free end portion 180b of the drive shaft 180 (fig.105a). The axis L2 begins to deviate (fig.105 (b)) (backward relative to the direction of removal of the cartridge X6). This direction coincides with the slope of inclination of the connecting element 15150 during installation of the cartridge B. As a result, the removal operation of the cartridge B moves it, when the free end portion L 15150A3 (located behind with respect to the direction X6 Position) is contacted with the free end portion 180b. Connecting element deviates to 15150 until the free end portion 15150A3 reaches the free end portion 180b3 of the drive shaft (fig.105 (c)). In this case, the angular position of the coupling element 15150 is the angular position of disengagement. In this state, the free end 180b3 of the drive shaft connecting member passes 15150 in contact with the free end 180b3 of the drive shaft (fig.105 (d)). Thereafter, the cartridge B-2 is extracted from the apparatus main assembly A.
As described above, the connecting member 15150 is mounted for swivel movement about the axis L1. The connecting element 15150 may be disengaged from the drive shaft 180 due to the rotation of the connecting element 15150 in accordance with the operation of removing the cartridge B-2.
Movement shown in fig.105 may include a circular motion.
With the above construction, the connecting member 15150 is integral part of the photosensitive drum as the photosensitive drum unit. Consequently, during assembly is facilitated and improved handling quality assembly.
To reject the axis L2 to an angular position directly prior coupling before connecting element 15150 implement coupling with the drive shaft 180, it is possible to use any of the structures according to embodiments 3-9.
In this embodiment, it has been described that the drum flange on the driven side is a separate element with respect to the photosensitive drum. However, the present invention is not limited to this example. In other words, the portion which receives the rotational force, may be provided directly on the cylindrical drum, not on the drum flange.
Option 18
Next, with reference to fig.106, fig.107 fig.108 and will be described in the 18th embodiment of the present invention.
This embodiment is a modified example of a connecting element described in Embodiment 17. The configurations of the drum flange and retaining member on the drive side in Embodiment 17 are different. In any case, the connection element may be rotated in a predetermined direction regardless of the phase of the photosensitive drum. Structure for mounting the photosensitive drum unit to the second frame as will be described below, the same as in the previous embodiment, and therefore its description is omitted.
On fig.106 (a) and (b) shows a first modified example of the photosensitive drum unit. On fig.106 (a) and (b), since the photosensitive drum and drum flange on the driven side is not the same as in embodiment 16, are not shown.
In particular, the connecting element provided with a supporting part 16150 16150r annular shape through which the finger 155. The boundary line 16150r1 16150r2 peripheral portion and the supporting portion 16150r are equidistant from the axis of the pin 155.
The inner periphery of the drum flange 16151 (element that accepts the rotational force) forms part of a spherical surface 16151i (recess). 16151i center part with the spherical surface is located on the axis of the pin 155. In addition, the gap is provided 16151u, which goes in the direction of the axis L1. Thanks to the pin 155 does not interfere with the deflection axis L2.
Between the driven portion 16150a and the supporting portion 16150r provided a retaining element 16156. On the part opposite the supporting portion 16150r, provides part 16156a having a spherical surface. There portion 16156a having a spherical surface portion 16151i is concentric with, having a spherical surface. In this slot 16156u is disposed so that it is a continuation of the slot 16151u in the direction of the axis L1. Thus, when the axis L1 pivotally rotated, the pin 155 can move in the slots 16151u, 16156u.
A drum flange, the coupling member and the retaining member for these driving side structures are mounted on the photosensitive drum. The result is a photosensitive drum unit.
With the above construction, when the axis L2 rejected boundary line 16150r1, 16150r2 supportive of the move on the part of 16150r 16151i and part 16156a, which have a spherical surface. Because of this, like the previous embodiment connecting element 16150 is guaranteed to bend.
Thus, the supporting portion 16150r can pivotally rotate with respect to portion 16151i, having a spherical surface; that is, between the flange and the connecting element 16151 16150 provides a suitable gap, so that the connecting element 16150 can swing.
Thus, provided similar results to those described in embodiment 17.
On fig.107 (a) and (b) shows a second modified example of the photosensitive drum unit. On fig.107 (a) and (b), since the photosensitive drum and drum flange on the driven side is not the same as in embodiment 17, are not shown.
In particular, by analogy with the embodiment 17 on the connecting member provided 17150 spherical supporting portion 17150r, which intersects a center axis of the pin 155 and the axis L2.
On the drum flange 17151 is provided conical portion 17151i, contacting the surface of the supporting portion 17150r (deepening).
Between the driven portion 17150a and the supporting portion 17150r provided a retaining member 17156. edge portion 17156a contacts the surface of the supporting portion 17150r. Structure (drum flange, the coupling member and retaining member) of said drive side is mounted on the photosensitive drum. The result is a photosensitive drum unit.
With the above construction, when the axis L2 is deflected, the supporting portion 17150r is able to move along the conical portion 17151i and the edge line 17156a of retaining member. Because of this connection element 17150 may be safely rejected.
As described above, the supporting portion 17150r can pivotally rotate (swing) with respect to the conical portion 17151i. Between the flange 17151 and the coupling 17150 part gap is provided with a pivotable connecting element 17150. Thus, provided similar results to those described in embodiment 17.
On fig.108 (a) and (b) shows a third modified example of the photosensitive drum unit U7. The photosensitive drum and drum flange on the driven side is not the same as in the embodiment 17, in the modified example of fig.108 (a) and (b), and therefore they are not shown.
In particular, they are aligned with the axis of rotation of the pin 20155. The coupling element portion 20150r 20150 has a flat surface perpendicular to the axis L2. Provided hemispherical support portion 20150r that as the center is the intersection of the axis of the finger 20155 with the axis L2.
The flange 20151 is provided with a conical portion 20151i, 20151g having a vertex at its axis. Apex 20151g is contacted with a portion 20150r connecting member having a flat surface.
Between the driven portion 20150a and the supporting portion 20150r provided a retaining element 20156. In addition, the edge portion 20156a contacts with the surface of the supporting portion 20150r.
Structure (drum flange, the coupling member and retaining member) of this driving side is mounted to the photosensitive drum. The result is a photosensitive drum unit.
With the above construction, even if the axis L2 is inclined, the coupling element 20150 and the flange 20151 are always in contact with each other substantially at one point. Therefore, the coupling member 20150 is guaranteed to be rejected.
As described above, a portion 20150r connecting member having a flat surface, can swing relative to the conical surface 20151i. Between the flange 20151 and 20150 connecting element is provided a gap, which is the ability to swing the connecting element 17150.
The above results can be achieved thanks to the above construction of the photosensitive drum. As a means for deflecting the coupling member to an angular position prior clutch is used, any of the structure of Embodiment 3-9.
Option 19
Next, with reference to fig.109, fig.110 fig.111 and will be described in the 19th embodiment of the present invention.
This embodiment differs from the embodiment 1 by mounting the photosensitive drum and the structure for transmitting rotational force from the coupling member to the photosensitive drum.
On fig.109 is a perspective view illustrating the drum shaft and the coupling member. On fig.111 is a perspective view of the second frame unit with the drive side. On fig.110 a sectional view taken along the line S20-S20 in the fig.111.
In this embodiment, the photosensitive drum 107 is supported by the drum shaft 18153, the drive end extending from the second frame 18118 is not at its drive side. Through this can be more accurately defined position of the photosensitive drum 107. This is explained in more detail.
Val 18153 drum (item receptive rotational force) supports the positioning hole 18151g, 18152g of flanges 18151 and 18152 on the opposite ends of the photosensitive drum 107. The drum shaft 18153 rotates integrally with the photosensitive drum 107 of the 18153s, transmitting the driving force. In addition, the drum shaft 18153 supported by support members 18158 and 18159 at the opposite ends of second frame 18118 rotatably.
The free end portion 18153b of the drum shaft 18153 has the same configuration as the configuration described in connection with the embodiment 1. In particular, the free end portion 18153b has a spherical surface and the supporting surface 150f of the drum in the connecting member 150 can slide along said spherical surface. As a result, the axis L2 is pivotable to rotate in either direction relative to the axis L1. This prevents disengagement of the connecting member 150 by the drum bearing member 18157. They are combined into a single unit as a process cartridge by connecting a first frame unit (not shown) with the second frame 18118.
The rotational force is transmitted from the coupling member 150 via a pin 18155 (element-receiving rotational force) to the photosensitive drum 107. The pin 18155 passes through the center of the free end portion (spherical surface) 18153 of the drum shaft.
In addition, the drum bearing member 18157 prevents disengagement of the connecting member 150.
The clutch coupling element and disengagement from the main assembly of the apparatus in connection with the operations of installation and removal of the cartridge place in the same way as in the embodiment 1, and therefore description thereof is omitted.
With regard to the structure to deflect the axis L2 to the angular position of the pre-clutch, then you can use any of the designs of embodiments 3-10.
It is also possible to use the construction described in connection with the embodiment 1, regarding the configuration of the free end of the shaft of the drum.
As has been described in connection with Embodiment 1 (Figure 31), the direction of deflection of the connecting element relative to the cartridge is regulated by the drum bearing member. It can thereby be achieved more reliable coupling of the connecting element with the driveshaft.
This construction is not restricted more than if the end portion of the photosensitive drum is provided the portion which receives the rotational force, and this part is rotated integrally with the photosensitive drum. For example, it may be provided on the drum shaft provided at an end portion of the photosensitive drum (cylindrical drum), as described in connection with Embodiment 1. Or, as has been described in this embodiment, it may be provided on the end portion of the shaft which extends through the photosensitive drum (cylindrical drum). Furthermore, in an alternative embodiment, as was described in connection with the embodiment 17, said portion may be provided on the flange at the end portion of the photosensitive drum (cylindrical drum).
Furthermore, the clutch (coupling) between the drive shaft and the coupling element means the state in which the connecting member abuts or contacts the drive shaft and / or part, the rotational force is applied; This also means that when the drive shaft begins to rotate, the connecting member adjacent to or in contact with a portion, rotational force is applied, and there is the possibility of obtaining a rotational force.
With regard to reference letter index positions, in the above described embodiments for the coupling member parts having corresponding functions are assigned the same letter codes.
On fig.112 is a perspective view of a photosensitive drum unit U according to an embodiment of the present invention.
In this figure, a photosensitive drum 107 is provided with a helical gear 107c at the end, having a connecting member 150. The helical gear 107c transmits, to the developing roller 110 (process means), the rotational force which the coupling member 150 receives from the apparatus main assembly A. This structure is applicable to the drum unit U3 shown in fig.97.
On the photosensitive drum 197 at the end opposite the end where there is a helical gear 107c, provided the gear d. In this embodiment, this gear 107d is a helical. The gear 107d transmits a transporting roller 104 (Figure 4) provided in the apparatus main assembly A, the rotational force which the coupling member 150 receives from the apparatus main assembly A.
The charging roller 108 (process means) along a longitudinal contact area with the photosensitive drum 107. This charging roller 108 rotates with the photosensitive drum 107. The transfer roller 104 may be in contact with the photosensitive drum 107 along its longitudinal zone. Through this transporting roller 104 may rotate the photosensitive drum 107. In this case, the gear to rotate the transfer roller is not required.
As shown in fig.98, on the photosensitive drum 107 has a spur gear 15151s at that end where the connecting element 15150. 15150s pinion transmits the rotational force received by the coupling element 15150 of apparatus main assembly A, on the developing roller 110, and the position ( relative to the axis L1 of the photosensitive drum 107), which provides gear 15151s, and a position in which is provided a finger 15150h1, h2, transmitting the rotational force (the portion transmitting rotational force), are overlapped with each other (the position of the overlap is shown by the reference numeral 3 on fig.98).
Thus, the gear portion 15151s and transmitting the rotational force, overlap one another in the direction of the axis L1. This reduces the force tending to deform the frame into the cartridge. Furthermore, it can be reduced by the length of the photosensitive drum 107.
For this purpose the drum unit can use the connecting elements of the above embodiments.
Each connecting element described above has the following construction.
The connecting element (for example, the connecting elements 150, 1550, 1750 and 1850, 3150, 4150, 5150, 6150, 7150, 8150, 1350, 1450, 11150, 12150, 12250, 12350, 13150, 14150, 15150, 16150, 17150, 20150 , 21150, etc.) are meshing with the part applied rotational force (e.g., fingers 182, 1280, 1355, 1382, 9182, etc.) provided in the main assembly A of the device. The coupling member receives a rotational force for rotating the photosensitive drum 107. Each connecting element can be rotated between the angular position transmitting rotational force to be transmitted to the photosensitive drum 107 rotating force to rotate the photosensitive drum 107 by engagement with a portion, rotational force is applied, and the angular position unlatching, deflected in the direction of the axis L1 of the photosensitive drum 107 from the angular position, the rotational force transmission.
During removal of the cartridge B from the apparatus main assembly A in a direction substantially perpendicular to the axis L1, the connecting member is rotated from the angular position, the rotational force transmission in the angular position of disengagement.
As described above, the angular position, the rotational force transmitting and disengaging angular position may be the same or equivalent to each other.
During installation of the cartridge B in the apparatus main assembly A following operation is performed. The connecting member is rotated from the angular position of the preliminary adhesion to an angular position transmitting rotational force in response to movement of the cartridge B in the direction substantially perpendicular to the axis L1, so as to allow part of the connecting member (e.g., parts in the forward position A1 of the free end) located in front (relative to the direction in which the cartridge B is installed in the apparatus main assembly A) to circumvent the drive shaft. Finally, the coupling element is installed in an angular position, the rotational force transmission.
The term "substantially perpendicular" has been explained above.
The coupling member has a recess (e.g., 150z, 12150z, 12250z, 14150z, 15150z, 21150z), wherein the rotational axis L2 the coupling member extends through the center mold forming recess. The recess covers the free end of the drive shaft (e.g., 180, 1180, 1280, 1380, 9180) in a state in which the connecting element is in the angular position, the rotational force transmitting. Portion which receives the rotational force (e.g., surface 150E, 9150e, 12350e, 14150e, 15150e, perceiving rotational force) protrudes from the part adjacent to the drive shaft in a direction perpendicular to the axis L3, and can carry out coupling or adjacent to a portion applying rotational force in the direction of rotation of the coupling element. Due to this coupling member receives a rotational force from the drive shaft for rotation. When removing the process cartridge from the apparatus main assembly electrophotographic image-forming connecting element is rotated from the angular position of the transmitting rotational force to the angular position of disengagement, so that a portion (end portion 150A3, 1750A3, 14150A3, 15150A3, located behind with respect to the direction of removal of the cartridge) the coupling member rotates the drive shaft in response to movement of the process cartridge in a direction substantially perpendicular to the axis of the electrophotographic photosensitive drum. Due to this uncoupling the coupling member is performed by a drive shaft.
On an imaginary circle C1 (Figure 8 (d), fig.95 (d)) with the center O (Figure 8 (d), fig.95 (d)) on the axis of rotation of the connecting member at locations substantially diametrically opposed to each other , a plurality of these units, which receive the rotational force.
The recess of the connecting element has an expanding portion (for example, 8, 29, 33, 34, 36, 47, 51, 54, 60, 63, 69, 72, 82, 83, 90, 91, 92, 93, 106, 107 , 108). Many parts, which receive a rotational force provided at regular intervals along the direction of rotation of the coupling element.
Part applied rotational force (e.g., 182a, 182b), acts in each of said two positions and extends in a direction perpendicular to the axis of the drive shaft. One of the portion which receives the rotational force, is engaged with one of the two parts, the rotational force is applied. Another of the portion which receives the rotational force, opposite to the first of said parts, is engaged with the other of the two parts, the rotational force is applied. Due to this coupling member receives a rotational force from the drive shaft for rotation. In this construction the rotational force can be transmitted to the photosensitive drum coupling member.
The expanding portion has a conical shape. This conical shape has an apex on the rotational axis of the connecting element, and in a state in which the connecting element is in the angular position, the rotational force transmitting this vertex is opposite the free end of the drive shaft. The coupling member includes a free end of the drive shaft when transmitting a rotational force to the coupling member. With this structure, the coupling member can carry out adhesion (connection) with the drive shaft protruding from the apparatus main assembly with an overlap in the direction of the axis L2. Thus, the connecting member may have a stable coupling with the drive shaft.
The free end portion of the connecting member covers the free end of the drive shaft. Thus, the coupling member can easily disengage from the driving shaft. The connecting member can receive the rotational force from the drive shaft with a high precision.
Connecting element having a flared portion and a drive shaft may have a cylindrical shape. This facilitates the processing of the drive shaft.
The connecting member has a conical-shaped flared portion, so that the above results can be improved.
When the connecting member is in the angular position, the rotational force transmitting axis L2 and the axis L1, substantially coincide. In a state in which the connecting element is in the angular position of disengagement, the axis of rotation of the coupling member is inclined relative to the axis of said electrophotographic photosensitive drum, allowing located behind (relative to the direction in which one of the main assembly forming apparatus of electrophotographic image is deleted cartridge) of the connecting element to pass passing the free end of the drive shaft in the direction indicated. The coupling member includes a portion transmitting rotational force (for example, 150h, 1550h, 9150h, 14150h, 15150h), for transmitting rotational force to the electrophotographic photosensitive drum, and a connecting portion (for example, the 7150s) between the part that receives the rotational force and the part transmitting a rotational force, wherein the portion which receives the rotational force connecting part and transmitting the rotational force, arranged along the axis of rotation. When the process cartridge is moved in a direction substantially perpendicular to the drive shaft, the angular position prior clutch is provided connecting portion contacting a fixed portion (guide rib (contact portion) 7130R1a), provided in the main assembly of the electrophotographic image forming apparatus.
The cartridge comprises a support member (locking member 3159, a biasing element 4159a, 4159b, locking member 5157k, magnet member 8159) to support the connecting element in an angular position prior coupling, wherein the coupling element is supported in an angular position prior coupling force developed by the support member. The connecting element is positioned in an angular position prior adhesion force of the supporting member. Supporting element can be resilient member (biasing element 4159a, 4159b). The connecting member is supported in the angular position of the elastic force of the elastic coupling member. The support member may be a friction member (locking member 3159). Due to the friction force of the friction element connecting member is supported in the angular position of coupling. The connecting member may be a locking member (locking member 5157k). Supporting element may be a magnetic member (portion 8159) provided on the connecting member. The connecting member is maintained in an angular position by the magnetic force of the magnetic coupling member.
Portion which receives the rotational force, engages with the part applied rotational force, which can be rotated together with the drive shaft as a unit. Portion which receives the rotational force, may perform part of the clutch with applied rotational force, which can be rotated together with the drive shaft as a unit. Moreover, when the portion which receives the rotational force receiving driving force for rotating the coupling member, the portion which receives the rotational force is inclined in the direction of the drive shaft for the effort. Due to the attractive force of the connecting member securely contacts the free end of the drive shaft. Then the connecting element is positioned relative to the direction of the axis L2 of the drive shaft. When pull-in of the photosensitive drum 107 is given by the position of the photosensitive drum 107 relative to the main assembly of the apparatus in accordance with the direction of the axis L1. Those skilled in the art will readily be able to properly set the value of the attractive force.
The connecting member provided at an end of the electrophotographic photosensitive drum, and it can be deflected relative to the axis of the electrophotographic photosensitive drum substantially in all directions. Due to this connecting element can be smoothly rotated between the angular position prior angular position and the clutch transmitting the rotational force, as well as between the angular position, the rotational force transmission, and the angular position of disengagement.
It is assumed that the phrase "substantially in all directions" means that the connecting element can be rotated to an angular position, the rotational force transmission, regardless of the phase in which the stop part, the rotational force is applied.
The connecting element can be rotated in the disengaging angular position irrespective of the phase in which the stop part, the rotational force is applied.
In the part of transmitting rotational force (for example, 150h, 1550h, 9150h, 14150h, 15150h), and element, perceiving the rotational force (for example, pin 155, 1355, 9155, 13155, 15155, 15151h), provides clearance, so that the connecting element can be deflected relative to the axis of the electrophotographic photosensitive drum substantially in all directions, and part that transmits the rotational force is provided on the end of the electrophotographic photosensitive drum and is movable relative to the element, sensing the rotational force, with a part that transmits rotational force, and an element-receiving rotational force may carry grip each other in the direction of rotation of the coupling member. The connecting element is mounted on the end of the drum in this manner. The connecting member is able to deflect substantially in all directions relative to the axis L1.
The main assembly of electrophotographic image forming apparatus includes a biasing member (for example, slider 1131) capable of moving between the biasing position and a retracted position away. When mounting the process cartridge into the main assembly of the electrophotographic image forming apparatus, the coupling member is moved to an angular position prior clutch resiliently urging member returns to the position after the tightening of the temporary retraction in the retracted position due to contact with the process cartridge. With this structure, even if the connecting portion assigned due to friction, the coupling member can surely move to an angular position prior clutch.
The photosensitive drum unit has the following construction. Unit (U, U1, U3, U7, U13) of the photosensitive drum can be installed in and removed from the main assembly of electrophotographic image forming apparatus in a direction substantially perpendicular to the axial direction of the drive shaft. Drum unit has an electrophotographic photosensitive drum and a photosensitive layer (107b) on its peripheral surface, the electrophotographic photosensitive drum can rotate about its axis. It also includes a coupling member for coupling with the part applied rotational force, and for receiving a rotational force for rotating the photosensitive drum 107. The construction of the elements may be as described above.
The unit is mounted in the drum cartridge. By mounting the cartridge to the main assembly of the apparatus may be provided by mounting the drum unit in the main assembly of the apparatus.
A cartridge (B, B2) has the following structure.
The cartridge may be installed in and removed from the apparatus main assembly in a direction substantially perpendicular to the axial direction of the drive shaft. The cartridge comprises a drum with a photosensitive layer (107b) on its peripheral surface, the electrophotographic photosensitive drum can rotate about its axis. The cartridge further comprises process means actable on the photosensitive drum 107 (for example, cleaning blade 117a, charging roller 108 and the developing roller 100). The cartridge further comprises a coupling member for receiving a rotational force for rotating the drum 107 by engaging with a part of applied rotational force. The connecting member may have the structures described above.
The drum unit may be loaded into an electrophotographic imaging apparatus.
In an electrophotographic image forming apparatus, the process cartridge can be loaded.
The axis is the rotational axis L1 of the photosensitive drum.
The axis L2 is an axis of rotation of the coupling element.
The axis L3 is an axis of rotation of the drive shaft.
Circular motion is not a motion with which the coupling member itself rotates about the axis L2, but refers to a rotation axis L2 inclined relative to the axis L1 of the photosensitive drum, and a circular motion does not prevent rotation of the coupling element itself relative to the axis L2 the coupling member.
Other options
In the above embodiment, the trajectory of installation and removal of the cartridge extends obliquely or without tilting (up-down) relative to the drive shaft of the apparatus main assembly. However, the present invention is not limited to these examples. These options can be used for the process cartridge which can be installed and removed in a direction perpendicular to the drive shaft, according to, for example, the design of the apparatus main assembly.
In the above embodiment, although the installation path is rectilinear relative to the main assembly of the apparatus, the present invention is not limited to these examples. The trajectory of the installation can, for example, be a combination of straight-line segments or be curved trajectory.
Cartridges as described in the above embodiment, a monochrome image is formed. However, the above-described embodiments can be applied to the cartridges for forming the images (for example, two-color image, three color image or full-color images, etc.) of a plurality of colors using a plurality of developing devices.
In addition, the above-described process cartridge includes an electrophotographic photosensitive member, for example, at least one process means. Thus, the process cartridge may contain a photosensitive drum and charging means as a process means as a unit. The process cartridge may contain a photosensitive drum and developing means as process means unified. The process cartridge may contain a photosensitive drum and cleaning means as a process means as a unit. In addition, the process cartridge may contain a photosensitive drum and two or more of the technological tools that make up a whole.
The process cartridge is installed in and removed from the apparatus main assembly by the user. Thus, maintenance of the apparatus main assembly by the user. As to the main assembly of the apparatus, according to the above-described embodiments, it does not provide a mechanism for moving the connecting member of the drum on the side of the main assembly for transmitting a rotational force to the photosensitive drum in its axial direction, the process cartridge can be installed (with the possibility of removal) in the direction virtually perpendicular to the axis of the drive shaft. Also, the photosensitive drum can rotate smoothly. According to the above embodiment, the process cartridge can be removed from the main assembly of electrophotographic image forming apparatus provided with a drive shaft in a direction substantially perpendicular to the axis of the drive shaft.
According to the above embodiment, the process cartridge can be mounted to the main assembly of electrophotographic image forming apparatus provided with a drive shaft in a direction substantially perpendicular to the axis of the drive shaft. Furthermore, according to the above embodiment, the process cartridge can be installed and removed in the direction of the axis of the drive shaft relative to the main assembly of the electrophotographic image forming apparatus provided with the drive shaft.
As described above, the connecting member, even if he is not forced to move the driving gear provided in the main assembly, in the axial direction, the coupling member can be mounted on and dismounted from the main assembly of the apparatus by moving the process cartridge in a direction substantially perpendicular to the axis of the drive shaft.
According to the above-described embodiment in the presence of a drive connecting portion between the main unit and the photosensitive drum cartridge can smoothly rotate in contrast to the case when using the grip between the gears.
According to the above embodiment, the process cartridge can be installed (with the possibility of removing it) in a direction substantially perpendicular to the axis of the drive shaft provided in the main assembly, and at the same time, the photosensitive drum can rotate smoothly.
According to the above embodiment, the process cartridge can be installed (with the possibility of removing it) in a direction substantially perpendicular to the axis of the drive shaft provided in the main assembly, and at the same time can be made smooth rotation of the photosensitive drum.
Industrial Applicability
As described above, in the present invention, the axis of the drum coupling member can take the different angular positions relative to the axis of the photosensitive drum. With this coupling structure of the drum coupling member to the drive shaft can be carried in a direction substantially perpendicular to the axis of the drive shaft provided in the main assembly. In addition, disengagement of the connecting member of the drum from the drive shaft can be carried in a direction substantially perpendicular to the axis of the drive shaft. The present invention can be applied to a process cartridge, an electrophotographic photosensitive drum unit cell portion transmitting rotational force (drum coupling member) and an electrophotographic image forming apparatus.
While the invention has been described with reference to the structures disclosed herein, it is not limited to the details disclosed herein, it is assumed that the present application cover such modifications or changes as fall within the scope of the aims of the invention or scope of the claims below.
Contents5
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP2004045603A | Cites | Japan |
| EP1178370A | Cites | European Patent Office (EPO) |
| US2006240896A1 | Cites | United States of America |
| US6473580B1 | Cites | United States of America |
| JP05341589A | Cites | Japan |
266 members in 22 offices
Priority claims11
| Document | Office | Kind | Date |
|---|---|---|---|
| 2006346190 | Japan | – | |
| 2006346190 | Japan | A | |
| 2006346190 | Japan | A | |
| 2007042665 | Japan | – | |
| 2007042665 | Japan | A | |
| 2007042665 | Japan | A | |
| 2007330303 | Japan | – | |
| 2006346190 | – | – | – |
| 2007042665 | – | – | – |
| JP20060346190 | – | – | – |
| JP20070042665 | – | – | – |
Members266
| Document | Office | Kind | |
|---|---|---|---|
| US2008152388A1 | United States of America | A1 | |
| AU2007339163A1 | Australia | A1 | |
| CA2670502A1 | Canada | A1 | |
| CA2961034A1 | Canada | A1 | |
| CA3117024A1 | Canada | A1 | |
| CA3117031A1 | Canada | A1 | |
| CA3117038A1 | Canada | A1 | |
| CA3119205A1 | Canada | A1 | |
| CA3119212A1 | Canada | A1 | |
| CA3119274A1 | Canada | A1 | |
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| CA3119466A1 | Canada | A1 | |
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| EP2087407A1 | European Patent Office (EPO) | A1 | |
| KR20090105941A | Republic of Korea | A | |
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| KR20140088160A | Republic of Korea | A | |
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| CN103279023B | China | B | |
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Numbers
- Publication
- 2467370
- Publication, DOCDB
- 2467370
- Publication, EPODOC
- RU2467370
- Application
- 200912819628
- Application, DOCDB
- 2009128196
- Application, EPODOC
- RU20090128196
Titles2
- Russian
- ТЕХНОЛОГИЧЕСКИЙ КАРТРИДЖ, ЭЛЕКТРОФОТОГРАФИЧЕСКОЕ УСТРОЙСТВО ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЙ И ЭЛЕКТРОФОТОГРАФИЧЕСКИЙ ФОТОЧУВСТВИТЕЛЬНЫЙ БАРАБАННЫЙ БЛОК
- English
- PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGING DEVICE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT
Classification
- CPC, 14
- G03G15/757
- G03G21/1803
- G03G15/00
- G03G21/1842
- G03G21/186
- G03G2221/1657
- G03G21/1853
- G03G21/1821
- G03G21/185
- G03G21/1857
- G03G21/1647
- G03G15/751
- G03G21/1817
- G03G21/1814
- IPC, 1
- G03G21 18