Method and construction for mounting flexible printed circuit

[Detailed Description of the Invention]

(Field of the Invention) The present invention relates to the mounting method and mounting structure of a flexible printed circuit board which are used abundantly at the electric appliance, When cylindrical, at least two flexible printed circuit boards are electrically connected into a multiple pillar-like housing and being mounted especially, it is related with the mounting method and structure of a suitable flexible printed circuit board. (PRIOR ART) The flexible printed circuit board is thinly excellent in flexibility, and it can be freely made it to Curvature from before, and since it can store efficiently in the narrow air in apparatus, it is used for many electric appliances. Generally the flexible printed circuit board is mounted in the shape united with the space shape in the narrow space of the versatility of an electric appliance. [ in lens barrels, such as a camera, ] -- lens! the direction of a pipe of a pipe -- the -- the inside of the space of the doughnut shape on the plane which intersects perpendicularly with the direction of a pipe by which 1 flexible printed circuit board was pinched by the body tube outside a lens, and the body tube in a lens -- the -- electrically connecting and mounting 2 flexible printed circuit board Or A plurality of flexible printed circuit boards may be mounted in the direction of a pipe of a lens barrel in piles. in such a case, in the case of the former, it is shown in Drawing 7, for example -- as -- the -- 1 flexible printed circuit board 71 is stored in the direction of a pipe of housing 70, and some of the terminal areas 72 are bent on the plane which intersects perpendicularly with the direction of a pipe. the [ and / of the shape lacking in doughnut shape or its part / what is called / of circle beltlike type ] -- after piling up 2 flexible printed circuit board 73 with terminal area 72, it mounts by carrying out soldering 74 grade. the [ thus, ] -- terminal area 72 which comprises the plane part of 1 flexible printed circuit board 71 -- the [ of circle beltlike type ] -- after piling up 2 flexible printed circuit board -- both sides -- with Handa -- etc the method of electrically connecting and mounting in a housing -- the -- there was a fault whose area for a terminal area occupying much area of 2 flexible printed circuit board side, and providing the child made from an electric circuit decreases. The work of etc had to be done with Handa in the narrow space in a housing, and there were problems, like working efficiency is bad. (Problem which an invention tends to solve) When a plurality of flexible printed circuit boards in a multiple pillar-like housing in which the present invention is cylindrical are mounted, A large area for providing the electric circuit element of each flexible printed circuit board can be taken, and moreover, with Handa aims at the mounting method of a flexible printed circuit board and offer of mounting structure which can electrically be connected and can be mounted by high working efficiency, when carrying out etc. (Means for solving a problem) In the method of cylindrical or mounting the flexible printed circuit board of at least two sheets in a multiple pillar-like housing, the [ which consists the 1st stating part field and the 1st terminal area field ] -- 1 flexible printed circuit board, The 1st stating part field is located in the above-mentioned housing, and it arranges so that the 1st terminal area field may project for the housing outside to pass, the [ which has the 2nd stating part field and the 2nd terminal area field ] -- while the 2nd stating part field is located in the above-mentioned housing and the 2nd terminal area field projects 2 flexible printed circuit board out of the housing It is having arranged so that a connection section's may overlap with the above-mentioned 1st terminal area field at least, then having electrically out of the above-mentioned housing connected the above-mentioned 1st terminal area field and the 2nd terminal area field, and having bent and stored the further connected above-mentioned 1st and 2nd terminal area field in the above-mentioned housing. In the structure of cylindrical or mounting the flexible printed circuit board of at least two sheets in a multiple pillar-like housing, the [ which it has the 1st stating part field and the 1st terminal area field, the 1st stating part field was fixed almost in parallel with the direction of an axis in the above-mentioned housing, and the 1st terminal area field projected to the 1st stating part field, and was formed ] -- 1 flexible printed circuit board, While having the 2nd stating part field and the 2nd terminal area field, and the 2nd stating part field's being fixed in the direction of an axis by the abbreviated right angle within the account housing of Navigation and projecting and forming the 2nd terminal area field in the 2nd stating part field, the [ which is arranged so that a connection section may overlap with the above-mentioned 1st terminal area field at least ] -- it is bent by the Navigation 2 stating-part field in the almost parallel position, where it comprised 2 flexible printed circuit board and the above-mentioned 1st and 2nd terminal area field's is electrically connected. (EXAMPLE) Drawing 1 is a schematic diagram of the 1st example of the present invention. the case in which a lens barrel of 10 etc. are cylindrical in the figure, and 1 -- the -- 1 flexible printed circuit board and 2 -- the -- it is 2 flexible printed circuit board, and mounting before to cylindrical housing 10 is shown typically. the -- 1 flexible printed circuit board 1 has the 1st terminal area field 1b connected with the 1st stating part field 1a and drawer part 1d from it. It has connected with the actuators an unillustrated iris diaphragm drive motor, for zoom, etc., and the 1st stating part field 1a is stored by the direction of axis parallel position of the pipe in housing 10. The 1st terminal area field 1b has locating hole 1c for positioning with connection pattern part 1e for electrically connecting with other printed circuit boards, and has projected it out of case 10. the -- 2 flexible printed circuit board 2 has the 2nd terminal area field 2b connected to the 2nd stating part field 2a and drawer part 2d from it. Doughnut shape is made, electric parts 2e, such as IC1 resistance and a capacitor, are laid on the field of the doughnut shape, and installation maintenance of the 2nd stating part field 2a is carried out in level difference side 10a formed in the rectangular direction to the direction of an axis of the above-mentioned case 10. the 2nd terminal area field 2b -- the -- it has locating hole 2C for positioning with connection pattern part 2e for electrically connecting with 1 flexible printed circuit board 1. it intersects perpendicularly with the 2nd stating part field 2a or the direction of an axis of housing 10 in this example -- although inserted planate, as shown in Drawing 2 at this time, the 2nd terminal area field 2b projects outside from case 10 -- the -- it has set up to touch the 1st terminal area field 1b of 1 flexible printed circuit board l out of case 10. Both connection pattern le and 2e are electrically connected with solder 3 etc. at the same time it positions using the locating hole of lc and 2c with the tool whose 1st terminal area field 1b and 2nd terminal area field 2b are not illustrated in this state. And as shown in Drawing 3, after connection bent both terminal area field ib of the method position of the outside of a housing, and zb to housing inboard, carried out them for overlapping on a 2nd stating part field 2a side, and it has stored it. Lens mount 4 and makeup pipe 5 are inserted after that. In this example, they are both terminal area fields 1b. After bending 2b and storing in case 10, it may be made to hold in a housing in the state where fix both terminal area fields 1b and 2b to case lO by the fixed member, and it pressed in the lens mount 4 grade. The 2nd stating part field 2a may be the circle beltlike type of the shape lacking in doughnut shape and its part. Housings 10 may be many square pillars-like. Terminal area field 1b which is each terminal area of two flexible printed circuit boards besides housing 10 in this example as mentioned above, It is made to make 2b project, both terminal area fields 1b and 2b are electrically connected in this state, and he bends both terminal area fields 1b and 2b after that, and is trying to store in case 10. For this reason, electrical link working of etc becomes easy with Handa, and there are the features, like a large area for loading of the electric parts of the 2nd stating part field 2a of circle beltlike type can be taken. Drawing 4 is an explanatory view of the 2nd example of the present invention. this example -- the -- the 2nd stating part field 2a in which electric part 2f of 2 flexible printed circuit board is laid comprises belt shape of the peripheral direction, and has stored this 2nd stating part field 2a over a cylindrical wall surface in the space of the doughnut shape formed with case 10 and inner barrel 40. the order stored in a housing at this time -- the -- even if it is 1 flexible printed circuit board -- the -- it may be whichever of 2 flexible printed circuit board. the [ and / 1st ] -- as the 1st and 2nd terminal area fields 1b and 2b of 2 flexible printed circuit board show by the dotted line of the figure and it projects from housing 10, after electrically connecting both sides in this state, it bends in the direction shown in arrow 41, and stores in housing 10 like a solid line. Lens mount 4 and makeup pipe 5 are made to insert after that. - this example whose Drawing 5 is a schematic diagram of the 3rd example of the present invention is improvement of the 1st example shown in Drawing 1, gives the same code number to the same element as the 1st example, and appears in it. In this example, store the 2nd stating part field 2a in housing 10, and when you unite the 1st terminal area field 1b and the 2nd terminal area field 2b out of case 10 for connection, drawer part 1d of the 1st stating part field 1a and drawer part 2d of the 2nd stating part field 2a should shift in the direction of the circumference of case 10, That is, he is trying for a phase gap to arise. It is made easy to make small drawer parts [ 1d and 2d ] restitution which tried to return as this shows in Drawing 6, when bending both drawer parts 1d and 2d and storing in case 10, and to bend. If it mounts so that a phase gap may produce mutually the drawer part of each flexible printed circuit board in a similar manner also when it mounts three or more flexible printed circuit boards in piles in the example shown in Drawing 5, it can store easily in the state with little restitution in a similar manner. (EFFECT OF THE INVENTION) According to the present invention, a large area which provides an electric circuit element for the cylindrical flexible printed circuit board of the plurality in a multiple pillar-like housing can be taken as mentioned above, And when carrying out etc with Handa, the mounting method and structure of a flexible printed circuit board of it which can electrically be connected and can be stored by high working efficiency become possible.

[Brief Description of the Drawings]

Drawings 1 are a schematic diagram showing each element before mounting of the 1st example of the present invention, and Drawing 2, The explanatory view and Drawing 4 in which Drawing 3 shows the mounting process of the 1st example of the present invention are an explanatory view when a flexible printed circuit board is mounted in the housing of the former [ Drawing / the explanatory view of the 2nd example of the present invention, Drawing 5, and / 6 / Drawing / the explanatory view mounting before of the 3rd example of the present invention, and after mounting, and / 7 ]. one in a figure -- the -- 1 flexible printed circuit board and 2 -- the -- 2 flexible printed circuit board, 2a -- the 2nd stating part field, lb, and 2b -- the -- the 1. 2nd terminal area field, lc, and 2c -- a locating hole, ld and 2 d -- a drawer part and 3 -- solder and 4 -- lens mount and 5 -- a makeup pipe and 1o -- a case and 2 f -- electric parts and 71.73 -- the -- the [ 1. ] -- as for 2 flexible printed circuit board and 7o, a case and 74 are solder. Applicant for a patent Drawing 3 of canon incorporated company Wealth 4 figure 7th Si 1 It is published by Fair (spontaneity) in procedure. September 8, Showa 62 2) The title of an invention The mounting method and mounting structure of a flexible printed circuit board Those who do 3 and amendment Relation with an incident Applicant for a patent Address 3-30-2, Shimo-maruko, Ota-ku, Tokyo name (+00) Canon incorporated company representative Ryuzo Kaku part 4, representative In address Postcode158 Tokyo, Taya ward Okusawa 2-17-3 Berja Yim freedom amends object board " of (8681) hill No. (telephone 718-5614) 301 name patent attorney Takanashi [ Yukio ] =", M5, and amendment with "flexible printed circuit board 73." (Ro) it applies to the 2nd line from the 5th page specification of the 1st line -- "-- the method of mounting -- the -- occupying much area of 2 flexible printed circuit board side in a terminal area -- " -- "-- the method of mounting is shown in Drawing 8 -- as -- the -- terminal area 73a of 2 flexible printed circuit board side 73 occupies much area -- " -- amend. (8) It "is made easy to bend". "It is at the same time it makes it easy to bend, [ of the 17th line with a specification of page / 11th ] Cautions are required for a size setup of size L2 containing the drawer part of size L1 containing the drawer part of the 1st flexible printed board, and the 2nd flexible printed board in the 1st example, Since it will not be hit and assembled inside drawer part 1d if L2 is too long, but the phase is shifted in the 3rd example as for each drawer part 1d and 2d, it is Ll. Since the error of the length of L2 is absorbable with the elasticity of a flexible printed board, length Ll and a setup of L2 are easy for it. It amends as ". (D) the ""5th line with a specification of page [ 12th ] -- and " -- or " -- amend. It inserts "set to what is mounted" before the "electric circuit element" of eye the 7th line. (2) It amends "Drawing 7 being a flexible printed circuit board in the conventional housing", saying "Drawing 7 and Drawing 8 are the flexible printed circuit boards of a conventional system in a housing". [ which is applied to the 17th line from the 16th line with a (4) specifications of page / 12th ] (3) (() figure 1, and Drawing 2 are amended as an attached sheet.) (0) Add Drawing 8 as an attached sheet. 1upsilonU.