Bed system

many springs located inside the outer frame and mounted over a plurality of transverse rods; a height adjustment system that includes said at least one rotatable transverse rod and a rotary transmission member that is accessible from the outside of the outer frame along the longitudinal side of the outer frame and which is designed to transmit rotation to said at least one rotatable around its eccentric axis, the transverse beam, according to the preamble of the first claim.

[0002] A standard bed system typically includes an upper mattress that is positioned on top of the mattress supporting structure. Said structure supporting the mattress usually comprises a base structure on which a spring package is fixed, which is usually covered with a soft material. The framework of the structure formed by the structure of the base and the package of springs is then covered with a textile material so that an aesthetically attractive piece of furniture is manufactured.

[0003] A standard bed system provides an even support for all parts of the wearer's body, independent of its shape and weight. However, different parts of the body require different orthopedic support. In addition, the bodies of different adult people may have significant differences in shape and weight that may even change over time, e.g. as a result of pregnancy, overweight or illness.

[0004] In order to increase the comfort of the user, and in particular the orthopedic support, a number of bed systems have been developed in which height differences have been incorporated into the structure supporting the mattress in a fixed manner. In US-A2

7210181 describes, for example, a bed system with a mattress supporting structure comprising a number of transverse slats. The slats are designed to support many springs. The transverse strips are divided into first and second strips, which support the first and second springs respectively. The height of the first and second slats and the spring constant of the first and second springs are so selected that a different support is provided: slats of low height and springs with a high constant spring are placed in the area supporting the arms, hips and legs; slats with a higher height and springs with a smaller spring constant are placed in the area supporting other parts of the human body. This type of bed system has a disadvantage because the height differences are built into the mattress structure in a fixed manner,

[0005] In order to solve this problem, EP-B-1410742 presents a bed system with a mattress supporting structure, in which the number of supports may be adapted to changes in the shape of the human body occurring during life. The mattress supporting structure comprises an outer frame and a plurality of height-adjustable elements installed in the outer frame and which are aligned with the corresponding adjustment means on the cushion-like element. The cushion element fits as a result of vertical displacement into the outer frame. In a first embodiment, described in EPB-1410742, the height adjustment means comprise a number of protrusions rotatably mounted on the outer frame. The cushion element includes a frame, springs and a layer of padding covering the springs. In addition, the cushion element contains a number of three-level depressions, which when they fit into the outer frame, block the protrusions in one of three positions. Such a bed system has the disadvantage that it is only possible to adapt the limited area of ​​the mattress supporting structure, namely the part that has the length of the cushion. Another disadvantage is that the height adjustment is inconvenient and requires the implementation of many different steps. In addition, since the left and right sides of the bed must be set separately, it is likely that the setting will be made incorrectly and that an unstable support structure will be created. In a second preferred embodiment described in EP-B-1410742, the height adjustment elements comprise a plurality of triangular rotatable elements that are rotated about the eccentric axis and so provide three different height levels for the supporting slats and also for the springs supported by the slats. Such a bed system has the disadvantage that the contact surface between the triangular rotatable elements and the support strips is too small to provide a stable support for the upper mattress. Another disadvantage is that no means are provided for blocking the position of the triangular rotatable elements, as a result of which it is impossible to avoid the rotating elements rotating again due to the dynamic load. Another disadvantage is that the triangular rotatable elements do not directly support the springs, but additional slats are needed at the top of the rotary elements to support the springs. As a result, the height of the mattress support system is adversely increased by the height adjustment means. In a third preferred embodiment described in EP-B-1410742, the height adjustment system includes discs, which are eccentrically mounted on a fixed spindle, mounted in an outer frame. The spindle can be rotated by a hand crank that is accessible from the outside of the outer frame. The cushion element is mounted on top of rotatable transverse disks. Such a bed system has the disadvantage that the height adjustment system is infinitely variable, which makes it difficult to provide the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly. mounted in the outer frame. The spindle can be rotated by a hand crank that is accessible from the outside of the outer frame. The cushion element is mounted on top of rotatable transverse disks. Such a bed system has the disadvantage that the height adjustment system is infinitely variable, which makes it difficult to provide the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly. mounted in the outer frame. The spindle can be rotated by a hand crank that is accessible from the outside of the outer frame. The cushion element is mounted on top of rotatable transverse disks. Such a bed system has the disadvantage that the height adjustment system is infinitely variable, which makes it difficult to provide the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly. The cushion element is mounted on top of rotatable transverse disks. Such a bed system has the disadvantage that the height adjustment system is infinitely variable, which makes it difficult to provide the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly. The cushion element is mounted on top of rotatable transverse disks. Such a bed system has the disadvantage that the height adjustment system is infinitely variable, which makes it difficult to provide the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly. which creates a difficulty in providing the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly. which creates a difficulty in providing the user with correct orthopedic recommendations. This is due to the fact that the measurement error - in the analysis of the user's body shape, in connection with the regulation recommendations - becomes larger than the height difference between successive height positions, which makes the recommendation incorrect and subjective. If the number of possible height positions is too high, the risk of incorrect adjustment increases accordingly.

[0006] US-3340548 describes a device in which the amount of spring support elements can be adapted to changes in the shape of the human body over time. The device for this includes an elongated rectangular structure that serves as an outer frame for many pressure-exerting body support elements and for many pressure-regulating elements. Each of the plurality of exerting body support elements comprises a row of spring coils, a bottom rigid rod-shaped element, called a roller, attached to the underside of the windings and extending between opposing longitudinal sides of the frame, and an upper rigid rod-shaped element, called a head, attached at the top of the windings and pulling between the opposite longitudinal sides of the frame. Each of the pressure control elements selectively raises a single roller and a row of springs fixed to it. In addition, each of the pressure control means comprises an adjusting mandrel and a pair of spaced circular cams at opposed longitudinal ends of the mandrel. The spindle and cams are mounted below the shaft, so that by rotating the spindle, the cam circuits have sliding engagement with the bottom side of the shaft. Since the cams are mounted eccentrically on the regulating mandrel, the cams raise or lower the respective shaft as a result of the rotation of the mandrel. The rotation of the spindle can be effected from the outside by means of a removable crank which is engaged at the protruding end of the spindle. The position of the cams, and hence the roller, can be secured in a number of raised positions by means of a calibrated disc connected to the mandrel and accessible from the outside of the frame.

[0007] An apparatus as described in US-3340548 has the disadvantage that the rotating element being the removed crank is not able to lock the cam in a specific position. Locking the position of the cam can only be achieved by performing a separate gripping, i.e. by manually engaging the trigger hook mounted on the outer side of the frame, by one of the pawls on the calibrated disc. Such a blocking system is inconvenient because it requires separate user action after rotating the spindle. In fact, the user needs to move the latch from the position in which it is engaged to the latch to the position in which it is released, while maintaining the removed crank in the turned position. In order to keep it both in the locked position and in the unblocked position, the trigger hook is loaded. As a result, there is a basic risk,

It is therefore an object of the present invention to provide a new mattress support system with height adjustment system with reduced risk of returning to a previous or different position that provides a mattress supporting system with a limited number of different height positions.

[0009] According to the present invention, this is achieved by means of a mattress support system exhibiting technical features in accordance with the characterizing part of the first claim.

[0010] The invention is explained in more detail in the attached figures and figures.

Figures 1A and 1B show a mattress supporting structure of a bed system according to the present invention.

Figures 2A and 2B show a preferred embodiment of the rotatable rod according to the present invention in a three-dimensional and cross-sectional view, respectively.

Figure 3 shows a preferred embodiment of the various parts of the modular height adjustment system in the bed system of the present invention. Figure 4 shows a preferred embodiment of a modular connector of a height adjustment system according to the present invention.

Figure 5 shows a preferred embodiment of a modular elevator system housing according to the present invention.

Figure 6 shows a preferred embodiment of the rod-shaped modular height control system element according to the present invention.

Figure 7 shows a preferred embodiment of the rod support element in the modular height adjustment system according to the present invention.

[0011] Figures 1A and 1B illustrate a preferred embodiment of a mattress supporting structure 1 of the bed system of the present invention. Said mattress supporting structure 1 comprises an outer frame 2 comprising two lateral sides 5, 6 and two longitudinal sides 3, 4 sides. Said supporting structure 1 further comprises a plurality of transverse rods 7 adjacent each other, each of which is connected with a first end transversely with the first longitudinal side 3 of the outer frame and a second end transverse with the second longitudinal side 4 opposite the first longitudinal side. 3 of the outer frame 2. The rods 7 are arranged in spaced apart directions, extending in the longitudinal direction of the outer frame 2 side by side. Inside the outer frame 2 there are a plurality of springs 13 and are mounted over the above-mentioned plurality of transverse rods 7. The mattress supporting structure 1 formed by said springs 13, said outer frame 2 and said transverse rods 7 is preferably covered with a textile material, as shown in Figure 1A to improve the aesthetic appearance of the entire bed system. The upper mattress (not shown) is therefore preferably placed on a covered mattress supporting structure so that a box-shaped, spring-like bed system is obtained. Alternatively, the mattress supporting structure can simultaneously act as a bed system mattress and the user can lie directly on the mattress supporting structure 1. The mattress supporting structure 1 formed by said springs 13, said outer frame 2 and said transverse rods 7 is preferably covered with a textile material, as shown in Figure 1A, to improve the aesthetic appearance of the entire bed system. The upper mattress (not shown) is therefore preferably placed on a covered mattress supporting structure so that a box-shaped, spring-like bed system is obtained. Alternatively, the mattress supporting structure can simultaneously act as a bed system mattress and the user can lie directly on the mattress supporting structure 1. The mattress supporting structure 1 formed by said springs 13, said outer frame 2 and said transverse rods 7 is preferably covered with a textile material, as shown in Figure 1A, to improve the aesthetic appearance of the entire bed system. The upper mattress (not shown) is therefore preferably placed on a covered mattress supporting structure so that a box-shaped, spring-like bed system is obtained. Alternatively, the mattress supporting structure can simultaneously act as a bed system mattress and the user can lie directly on the mattress supporting structure 1. The upper mattress (not shown) is therefore preferably placed on a covered mattress supporting structure so that a box-shaped, spring-like bed system is obtained. Alternatively, the mattress supporting structure can simultaneously act as a bed system mattress and the user can lie directly on the mattress supporting structure 1. The upper mattress (not shown) is therefore preferably placed on a covered mattress supporting structure so that a box-shaped, spring-like bed system is obtained. Alternatively, the mattress supporting structure can simultaneously act as a bed system mattress and the user can lie directly on the mattress supporting structure 1.

[0012] At least one of said adjacent transverse rods is a polygonal rotatable transverse beam 7 as depicted in figure 1B and as illustrated in detail in figures 2A and 2B. Said at least one polygonal rotatable transverse rod 7 comprises an eccentric rotary axis 12 that is accessible from the outside of the outer frame 2. Said at least one rotatable transverse beam 7 further comprises a plurality of transverse beam sides 8, 9, 10, 11 arranged with respect to each other that a polygonal transverse beam 7 is formed as for example shown in figures 2A and 2B. Figures 2A and 2B show a rotatable transverse beam 7 with a quadrangular cross-section, comprising four transverse beam sides 8, 9, 10, 11 that together form a quadrangle. However, the polygonal rotatable transverse beam may have any other type of cross-section considered by a person skilled in the art, such as a triangular cross-section defined by three sides of the transverse beam that together form a triangle. One of said sides of the transverse beam acts as a support surface for at least one row of springs from said plurality of springs. The row of springs 13 may be in direct contact with said one of the sides of the transverse beam or an additional layer may be provided between the upper side of the rod and the springs. One of said sides of the transverse beam acts as a support surface for at least one row of springs from said plurality of springs. The row of springs 13 may be in direct contact with said one of the sides of the transverse beam or an additional layer may be provided between the upper side of the rod and the springs. One of said sides of the transverse beam acts as a support surface for at least one row of springs from said plurality of springs. The row of springs 13 may be in direct contact with said one of the sides of the transverse beam or an additional layer may be provided between the upper side of the rod and the springs.

[0013] By rotating said rotatable transverse beam 7 about its eccentric axis 12, the upper side 11 of the transverse beam, i.e. the side of the transverse beam that supports the springs 13, will assume a different height with respect to the outer frame.

2. As a result, the springs 13 resting on top of the upper side 11 of the transversal rod will be set higher or lower, depending on the particular position of the upper side 11 of the cross rod with respect to the outer frame 2. The rotatable rod 7 shown in FIG. the first 10, second 11, third 9 and fourth 8 sides of the transverse beam. The first side 10 of the transverse beam has the highest position relative to the outer frame 2 and the position of the springs 13 is at its highest position relative to the outer frame 2. The fourth side 8 of the transverse beam has the lowest position with respect to the outer frame 2 and the position of the springs 13 is at its lowest position relative to the outer frame 2.

As a result, since no additional supporting strips are needed at the top of the rotary transverse beam 7 for supporting the springs 13, it is possible to achieve a reduction in the total height and weight of the supporting structure 1 of the mattress 1 as compared with prior art systems.

Rotation of said rotatable transverse beam 7 about its eccentric axis 12 is carried out by means of a height adjustment system of the bed system, and in particular by means of a turning part 14, a height adjustment system that is accessible from outside the outer frame 2. Said transmission element 14 rotation can be an element of any type considered appropriate by a specialist. Said rotation imparting member may be part of the rotatable transverse beam itself, e.g. in the form of a recess that is accessible from the outside and which extends in the longitudinal direction of the eccentric axis of rotation, but is preferably a separate element attached to the rotatable transverse beam. Such a separate element 14 for imparting rotation may, for example, take the form of an element, which fits the opening in the longitudinal side of the outer frame and which comprises a protruding portion which at least partially extends inside the outer frame and which at least partially corresponds to a respective part of the rotatable transverse beam or rod element mounted on the rotatable transverse beam and which extends in the longitudinal direction of the eccentric axis of rotation of the rotatable transverse beam. Such a protruding portion may be fitted around or within the protruding portion of the rotatable transversal rod or rod component, or in the grooved portion of the rotatable transverse beam or rod member. Due to the access to the element 14 imparting rotation from the outer side of the outer frame 2 and by rotating it, said rotatable transverse rod 7 can be turned and height adjustment can be achieved.

[0015] The rotation imparting element 14 may be arranged on two opposite longitudinal sides 3, 4 of the outer frame or only on one longitudinal side 3 of the outer frame. Since one single rotation imparting member 14 allows to adjust the height of the entire transverse beam 7 along its overall length, it is no longer necessary to adjust the height at both ends of the outer frame. This reduces the risk of misalignment, i.e. setting different heights at both ends of the transverse beam, and thus the risk of obtaining an unstable design supporting the mattress. [0016] The number of sides of the transverse beam determines a maximum number of different height positions of the rotatable transverse beam with respect to the outer frame. As a result of allowing only a limited number of height positions, the consumer can receive better orthopedic recommendations. In addition, the mattress supporting system 1 with a limited number of height positions also allows the user himself to set the height of the crosswise transverse beam, with a reduced risk of incorrect setting. The rotary transverse beam 7, as shown in Figures 2A and 2B, allows, for example, to set the upper side of the transverse beam at four different height positions relative to the outer frame. Preferably, the various height positions are selected in such a way that they represent a multiple thereof. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ... In addition, the mattress supporting system 1 with a limited number of height positions also allows the user himself to set the height of the crosswise transverse beam, with a reduced risk of incorrect setting. The rotary transverse beam 7, as shown in Figures 2A and 2B, allows, for example, to set the upper side of the transverse beam at four different height positions relative to the outer frame. Preferably, the various height positions are selected in such a way that they represent a multiple thereof. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ... In addition, the mattress supporting system 1 with a limited number of height positions also allows the user himself to set the height of the crosswise transverse beam, with a reduced risk of incorrect setting. The rotary transverse beam 7, as shown in Figures 2A and 2B, allows, for example, to set the upper side of the transverse beam at four different height positions relative to the outer frame. Preferably, the various height positions are selected in such a way that they represent a multiple thereof. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ... with a reduced risk of incorrect setting. The rotary transverse beam 7, as shown in Figures 2A and 2B, allows, for example, to set the upper side of the transverse beam at four different height positions relative to the outer frame. Preferably, the various height positions are selected in such a way that they represent a multiple thereof. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ... with a reduced risk of incorrect setting. The rotary transverse beam 7, as shown in Figures 2A and 2B, allows, for example, to set the upper side of the transverse beam at four different height positions relative to the outer frame. Preferably, the various height positions are selected in such a way that they represent a multiple thereof. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ... that they constitute their multiple. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ... that they constitute their multiple. The first side 10 of the transverse beam can e.g. be located at a distance of 4x from the eccentric axis of rotation, the second side 11 of the transverse beam at a distance of 3x, the third side 9 of the transverse beam at a distance of 2x, ...

In figure 1A, two rows of springs 13 are supported by one side of the transverse beam, but any other number of spring rows, considered by a person skilled in the art, can be placed on the upper side of one transverse rod.

[0018] The surface of the lateral rods 8, 9, 10, 11 may be flat, as shown in figure 3 or curved. Preferably, the surface of the transverse beam sides is curved in such a way that the peak of curvature is for each side of the transversal rod positioned on a line perpendicular to the horizontal plane of the mattress supporting structure and passing through the center of the eccentric axis of rotation. In this way, the top of the upper side of the transverse beam remains in the same position regardless of its specific height position, hence regardless of which side of the transverse beam is located at the top. This curved surface allows the transverse beam height to be set exactly in the same transverse position with respect to the outer frame.

[0019] The width of the various sides 8, 9, 10, 11 of the transverse beam in one rotatable transverse beam 7 may be mutually equal, as shown in Figures 2A and 2B, or may vary. Preferably, the width of the different sides 8, 9, 10, 11 of the transversal rod is large enough to provide a large contact area with springs 13. The large contact area between the springs 13 and the lateral rods 8, 9, 10, 11 is advantageous because it provides greater structural stability 1 a supporting mattress that exhibits better resistance to the dynamic and static forces exerted on the bed system. However, the width of the different sides of the transverse beam in the rotatable transverse beam is limited because the larger the width, the higher the height of the mattress supporting structure, which is not always desirable.

[0020] The element 14 for transmitting the height adjustment system can be moved between the first and the second position. Said first position 20 is intended to rotate said at least one rotatable transverse beam about its eccentric axis and said second position 21 is intended to lock said at least one rotatable transverse beam in a position with a desired height relative to the outer frame. Said locking portion 21 of said rotation imparting member 14 is accessible from outside of the outer frame, i.e. the rotatable transverse rod can be locked in a position appropriate for the desired height without removing a part or the whole of the mattress supporting system. The blocking part 21 ensures that the bed system is more stable,

[0021] Said rotation imparting member 14 may be part of the rotatable transverse beam 7 itself, for example in the form of at least one positioning element that cooperates with a corresponding position for positioning the outer frame of the mattress supporting structure or other part of the height adjustment system. Preferably, the rotation imparting member 14 is a separate element comprising at least one blocking region 21 that cooperates with a corresponding area 25 of the outer frame, the mattress supporting structure or another part of the height adjustment system.

[0022] The mattress supporting structure 1, as shown in Figures 1A and 1B, comprises a number of rotatable transverse rods 7 arranged along the outer frame 2. Said rotatable transversal rods 7 preferably extend parallel to each other, as shown in Figures 1A and 1B but they can be pulled at any angle relative to each other, considered by a specialist to be appropriate. A plurality of rotatable transverse rods 7 may be provided along the entire outer frame 2, as depicted in Figures 1A and 1B, or only along one or more specific areas. In the latter case, said mattress supporting structure comprises a first region that includes one or more attached transverse rods, extending between opposing longitudinal sides of a mattress supporting structure and comprising a predetermined upper side of a transverse beam that has a predetermined height position relative to the outer frame and which serves as a supporting surface for at least one row of springs; and a second region that includes one or more rotatable transverse rods extending between opposing longitudinal sides of the mattress supporting structure and comprising an upper side of a transverse beam that has an adjustable height position relative to the outer frame and which serves as a support surface for at least one row of springs. Preferably, the springs are in direct contact with the upper side of the transverse beam in the transverse rods. Preferably, said plurality of rotatable transverse rods are located at least between the head and hip region of the outer frame, i.e. the area of ​​the mattress supporting structure that is designed to support the head and hips, respectively. These areas are at least advantageous because the parts of the human body in these areas, i.e. the head, shoulders, chest, loin or lumbar region and hips, require different support, which may even vary during life. Figure 1B shows a mattress supporting structure that includes a number of pulling parallel rotatable transverse rods 7, positioned along the entire length of the outer frame 2 at a distance d from each other, wherein the height of the upper sides 11 of the transverse beam of the various rotary transversal rods 7 with respect to the outer frame 2 differs depending on the relative position of the human body part in relation to the body shape, i.e. the amount of support or relief required for that part of the human body which lies above this transverse rod. [0023] According to a preferred embodiment of the bed system of the present invention, the cross-section of the rotatable transverse rods 7 arranged along the outer frame 2 differs. As explained above, the type of cross-section of the rotatable transverse beam 7, as well as the number of sides 8, 9, 10, 11 of transversal rods, defines the maximum number of height positions of this particular rotatable transverse beam 7. By adjusting the cross-section of the various rotary transverse rods 7 along the length of the outer frame, the height of the supporting surface can be adapted for different parts of the human body. This allows, for example, a mattress supporting structure 1 with rotatable transverse rods with a pentagonal cross-section, i.e. a greater number of sides of the transverse beam, in those areas that support body parts that are likely to vary over a large extent over time, such as e.g. hips and loins, as a result of, for example, pregnancy, and rotatable transverse rods with a triangular transversal cross-section, i.e. with fewer sides of the transversal rod, in those areas that support parts of the body in which the likelihood of timing varies considerably.

[0024] Preferably, the bed system of the present invention comprises a modular height adjustment system comprising one or more different parts that are assembled in an interchangeable manner on an outer frame and / or on a rotatable transverse beam. Such a modular system has the advantage of causing a reduction of costs incurred by the consumer in the long term. If one of the height adjustment parts is damaged, it is not necessary to eject the entire mattress supporting structure or the entire outer frame or rotary transverse beam, but it is sufficient to replace only part of the system that is damaged. Another benefit of such a modular height adjustment system is that the modular construction allows separate production of different parts. This may even allow the production of different parts in different locations and / or in different countries and / or by different companies, which means that parts can be produced at the lowest possible cost. The modular height adjustment system also simplifies the production process of the entire system.

[0025] A preferred embodiment of the modular height adjustment system is shown in figure 3.

[0026] The modular height adjustment system preferably comprises a connector 14, which acts as a rotary transmission element and is intended for transmitting the rotation of said at least one rotatable transverse beam 7 about its eccentric axis of rotation and which is designed to cooperate with an outer frame. A preferred embodiment of the connector 14 is shown in figure 3 and in detail in the figure

4. The connector 14 shown in figure 4 includes a projection that fits the opening in the longitudinal side of the outer frame and at least partially extends inside the outer frame. The protrusion shown in figure 4 has the shape of an empty cylinder, but any other shape considered by the person skilled in the art is possible. The roller does not necessarily have to be empty but, for example, it may be a solid cylinder that includes a recess 15 that is accessible from outside the outer frame. The empty roller has the advantage of being light-weighted, easily accessible from the outside and can be directly attached to and to the portion extending in the longitudinal direction of the eccentric axis of the rotatable transverse beam to which it is connected. The empty roll comprises a first region 16 of the connector which cooperates with the corresponding first region 30 of the rod in the rotatable transverse beam 7, shown in FIG. 6. The first region 16 of the connector, as shown in FIG. 4, includes a number of alternating first grooves 18 and projections 17 that cooperate with corresponding second protrusions and grooves on the rotatable transverse beam. The first region of the connector 16 and the rod 30 can include any other type of cooperating positioning elements considered appropriate by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector that cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis. as shown in Figure 4, includes a number of alternating first grooves 18 and projections 17 that cooperate with corresponding second protrusions and grooves on the rotatable transverse beam. The first region of the connector 16 and the rod 30 can include any other type of cooperating positioning elements considered appropriate by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector that cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis. as shown in Figure 4, includes a number of alternating first grooves 18 and projections 17 that cooperate with corresponding second protrusions and grooves on the rotatable transverse beam. The first region of the connector 16 and the rod 30 can include any other type of cooperating positioning elements considered appropriate by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector that cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis. which cooperate with the corresponding second protrusions and grooves on the rotatable transverse rod. The first region of the connector 16 and the rod 30 can include any other type of cooperating positioning elements considered appropriate by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector that cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis. which cooperate with the corresponding second protrusions and grooves on the rotatable transverse rod. The first region of the connector 16 and the rod 30 can include any other type of cooperating positioning elements considered appropriate by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector that cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis. considered to be suitable by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector, which cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis. considered to be suitable by a person skilled in the art, such as a cooperating circular groove located on the first region of the connector, which cooperates with a corresponding circular projection on the first region of the rod. Thanks to these cooperating first regions of the connector and the rod, the rotation of said empty connecting rod will be translated into rotation of said rotatable transverse beam around its eccentric axis.

The hollow roller further comprises a gripping element 15 that is accessible from the outside of the outer frame and which is designed to rotate said connector and said at least one rod with which it is connected about its eccentric axis of rotation. The gripping element 15 may be in the form of a recess in an empty roll or it may be any other type of gripping element considered appropriate by the skilled person. Rotation can be obtained, for example, by inserting an empty cylinder key and rotating, as shown in figure 3. In order to prevent complete passage of the hollow protruding portion through the outer frame into the interior of the outer frame, the hollow protrusion is preferably prevented by a plate that is larger than an opening in the outer frame, as shown in figures 3 and 4.

Said empty cylinder further comprises a second connector region 19 positioned to adjoin the first connector region 16 and preferably in a position closer to the outer frame 2. The second connector region 19 comprises a setting portion 20 that allows said connector to rotate. said rotatable rod and a locking portion 21 that allows blocking of said connector and said rotatable rod in a desired position. The set-up portion 20 shown in Figure 4 has a smooth cylindrical portion and allows free rotation of said connector. Any other type of alignment parts may be considered suitable by a person skilled in the art. The locking portion 21 shown in Figure 4 is a corrugated part including a number of alternating recesses 23 and projections 22, which are designed to cooperate with corresponding projections 26 and recesses 27 in the outer frame 2 or some other part of the modular height adjustment system, as shown in Figure 5. The alternation of these projections 22, 26 and recesses 23, 27 is preferably such that the transverse rod 7 can be locked in a number of height positions defined by the number of sides of the transverse beam. Preferably, the adjusting portion 20 is positioned closest to the outer frame 2, while the locking portion 21 is located further away from the outer frame 2 as shown in figures 3 and 4. 26 and recesses 23, 27 is preferably such that the rotatable transverse rod 7 can be locked in a number of height positions defined by the number of sides of the transverse beam. Preferably, the adjusting portion 20 is positioned closest to the outer frame 2, while the locking portion 21 is located further away from the outer frame 2 as shown in figures 3 and 4. 26 and recesses 23, 27 is preferably such that the rotatable transverse rod 7 can be locked in a number of height positions defined by the number of sides of the transverse beam. Preferably, the adjusting portion 20 is positioned closest to the outer frame 2, while the locking portion 21 is located further away from the outer frame 2 as shown in figures 3 and 4.

The use of the coupler 14 is advantageous because it acts both as a rotary transmission element for rotating said at least one rotatable transverse bar about its eccentric axis and a part of the locking mechanism designed to block said at least one rotatable transverse beam in the desired position. height. The connector shown in figure 4 thus provides in a very compact manner a height adjustment system suitable for adjusting and locking the desired height of the rotatable transverse rod 7. Furthermore, it does not adversely affect the height and weight of the entire mattress supporting system 1.

[0030] The connector 14 shown in Figure 4 can be attached directly to the opening of the outer frame 2 or can be attached to a housing 24 that is directly mounted in the opening of the outer frame 2. Figures 3 and 5 illustrate a preferred embodiment of the case 24 that is intended for for direct mounting in a hole in the longitudinal side 3 of the outer frame 2. The housing 24 comprises a recessed part that is intended to house the projection of the connector. The recessed part of the housing shown in Figure 5 comprises an empty cylindrical housing portion that is intended to accommodate the hollow cylindrical projection of the connector. However, any other recessed portion of the housing, considered appropriate by the person skilled in the art, is possible, provided that it is able to accommodate the projection of the connector. Said hollow cylindrical housing portion includes a locking housing portion 25 designed to cooperate with the locking portion 21 of the connector 14 to lock the at least one rotatable rod 7 in the desired position. The locking portion 25 of the housing in the housing 24 shown in Figure 5 includes a number of alternating projections 26 and recesses 27 that are designed to cooperate with corresponding recesses 23 and protrusions 22 of the locking portion 21 of the connector 14. As a result of inserting the connector 14 into the housing 24 and pushing its smooth cylindrical portion 20 behind the locking portion 25 of the housing, the connector 14 is free to rotate and the desired height can be set. By pulling the connector 14 back into the outer frame 2 after it has been rotated, the blocking part of the connector 21 will be secured to the locking portion of the housing and the desired height position will be set. The use of housing 24 is advantageous because it is not necessary to replace the entire outer frame in the case of damage to the cooperating recesses and protrusions, which leads to lower replacement costs. Preferably, the shapes of the projections 26 blocking the housing parts are designed in such a way that the connector can only be attached to the housing in one possible manner so that the risk of misalignment of the modular height adjustment system can be minimized.

The modular height adjustment system connector 14 can be connected directly to the rotatable transverse beam 7 or can be connected to the rod element 28 mounted on the end portion of the rotatable transverse rod 7. The rod element 28 is advantageous because it results in lower replacement costs and the element is able to absorb some of the forces exerted on the rotary transverse rod 7 by the connector 14. The connection between the rod element 28 and the coupler 14 can be made by any means considered appropriate by a person skilled in the art, e.g. by means of a fastening screw, which is intended to connect the connector 14 and the element 28 rod (not shown). A preferred embodiment of the rod element 28 for use in the modular height adjustment system is shown in figures 3 and 6. The bar element 28 shown in Figure 6 includes a first side that is mounted on the end portion of the rotatable transverse beam and a second side opposite the first side that includes an element 30 to cooperate with the first connector region 16. The cooperating element 30 can be any element considered appropriate by a person skilled in the art. The cooperating element as shown in figure 6 comprises a protruding part 29 which extends in the longitudinal direction of the eccentric axis and which is accessible from outside the outer frame. Preferably, said protruding portion 29 has a recess which is intended to receive at least the first region 16 of the connector 14 as illustrated in figures 3 and 6. The cooperating element can, for example, be a recessed part that cooperates with the projection part of the connector. The use of the rod element 28 is advantageous because it can be made independent of the rotatable transverse rod 7. Another advantage is again that this results in lower replacement costs because not all of the rotary transverse rod needs to be replaced in the case of failure of the first region of the connector. The rotatable transverse beam 7 may comprise a rod element 28 on one longitudinal side of the outer frame or on both longitudinal sides, as shown in figure 3.

[0032] Preferably, said height adjustment system further comprises a rod support element 31 that includes a recess 32 for housing and supporting at least a portion of said protruding portion 29 of said rod element and which is designed to be mounted on the inner side of the outer frame of said system 1 support a mattress that is intended to guide the rotation of said at least one rotatable transverse beam. A preferred embodiment of such a support member of the rod is shown in figures 3 and 7. The support member of the rod shown in figure 7 is a U-shaped element that comprises a U-shaped recess and which is connected to the first srona with the inner side of the outer frame in this way, that the opening of the outer frame extends between the U-shaped recess 32 of the supporting member 31 of the rod. However, any other type of shape of the rod supporting element and recesses deemed suitable by a person skilled in the art is possible. The U-shaped recess is intended to accommodate and support the protruding portion 29 of the rod element 28 or the rotatable transverse beam 7, which is intended to house the first connector region 16 in the coupler 14 and the rotation guide of said at least one rotatable transverse bar 7. Such a support element The rod has the advantage of being able to absorb some of the forces exerted on the mattress supporting structure, in particular on the rotatable transverse rods. Preferably, said rod support means comprises a noise absorbing layer intended to absorb at least a portion of the noise noise due to friction between the connector and / or the projection of the rod element or the rotating transverse beam itself and the rod support element. Preferably, said U-shaped recess further comprises a cap 33 intended to reduce the displacement of the projection towards the top of the outer frame as illustrated in figure 7. The support member of the rod can be located at one end of the rotatable transverse beam or both ends as illustrated in FIG. 7.

[0033] Preferably, said height adjustment system further comprises a transition system that allows passage from the setting portion to the locking portion of said second connector region and vice versa. Preferably, said transition system comprises a spring structure 34 and is mounted between said link and said rod element or said rotatable transverse beam, as illustrated in figure 3. The spring structure 34 can be mounted in any position relative to the connector, e.g. outside the empty connector roll. In the case where the connector is connected by means of a fastening screw to the rotatable rod or rod element, the spring is preferably mounted such that it surrounds at least a portion of the screw. As a result of pushing the connector 14 towards the rotatable transverse beam 7, the spring 34 is compressed between the connector portion and a portion of the rod element and the connector 14 is pushed with its locking portion 21 beyond the corresponding locking portion 25 of the housing 24 or outer frame 2. The connector 14 can so be rotated freely and the desired height position of the rotatable transverse beam can be set. Upon rotation of the connector 14, the spring structure 34 automatically pushes the connector 14 back towards the outer frame 2 such that its locking portion 21 fits into the corresponding locking portion 25 of the housing 24 or outer frame 2 such that the desired height position is blocked. As a result, such a transition system,

Preferably, said modular height adjustment system further comprises an indication system 35 which is mounted on the connector and which is visible from outside the outer frame 2 and which is designed to visually indicate the height position of at least one pivot rod 7. Such an indication system 35 has such an advantage that a user intending to adjust the height of the structure 1 supporting the mattress in a specific position, directly observes what is the position of the height of the rotary transverse pole 7. Such a visual feedback system 35 also allows the manufacturer to provide orthopedic recommendations to the user and enables visualization. The indicating system 35 can also be in the form of a ring-shaped circular element as shown in figure 3, wherein it is divided into a number of different colors that correspond to the number of different possible height positions. In figure 3, the indicating system 35 has four colors which correspond to four different height positions of a quadrangular rotatable transverse rod connected to the height adjustment system. The indicating system 35 may, however, be of any type indicative of a system considered to be suitable by a person skilled in the art. It can be completely visible from the outside or only the part that indicates a certain height can be seen. The indication can be made by means of colors, numbering or any other type of indication can be used. which correspond to four different height positions of a quadrangular rotatable transverse rod connected to the height adjustment system. The indicating system 35 may, however, be of any type indicative of a system considered to be suitable by a person skilled in the art. It can be completely visible from the outside or only the part that indicates a certain height can be seen. The indication can be made by means of colors, numbering or any other type of indication can be used. which correspond to four different height positions of a quadrangular rotatable transverse rod connected to the height adjustment system. The indicating system 35 may, however, be of any type indicative of a system considered to be suitable by a person skilled in the art. It can be completely visible from the outside or only the part that indicates a certain height can be seen. The indication can be made by means of colors, numbering or any other type of indication can be used. which indicates the specified height. The indication can be made by means of colors, numbering or any other type of indication can be used. which indicates the specified height. The indication can be made by means of colors, numbering or any other type of indication can be used.

[0035] Various parts of the modular height adjustment system of the mattress supporting structure according to the present invention may be made of any material considered suitable by a person skilled in the art, such as a plastic material, a metal material or a wooden material.