JP7165801B2 - bed component and bed device - Google Patents

Description

The present invention relates to a bed component and a bed apparatus.

2. Description of the Related Art Conventionally, there has been known a bed apparatus disclosed in, for example, Patent Document 1 below. This bed apparatus includes a bed, a support base for supporting the bed, and a drive mechanism attached to the support base. In the bed apparatus, when the drive mechanism operates, an external force such as driving force or drive reaction force is transmitted to the portion of the support base to which the drive mechanism is attached, and stress is generated in this attachment portion.

JP-A-2005-87652

However, in the conventional bed device, in order to increase the strength against stress at the attachment portion, it is necessary to increase the number of parts, such as by providing a reinforcing member for reinforcing the attachment portion, and the structure of the bed device is complicated. easy to become

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple and strong bed device.

In order to solve the above problems, the present invention proposes the following means.
(1) A bed-constituting member according to the present invention is a bed-constituting member that constitutes at least a part of a bed that is supported by a support frame, that is fixed to the support frame and to which a drive mechanism is attached, wherein the support frame It is characterized by comprising a pair of fixing members arranged with a space therebetween and fixed to the support frame, and a connecting member connecting the pair of fixing members.

According to this invention, when the drive mechanism operates, the external force from the drive mechanism is transmitted to the bed constituent member. At this time, stress is generated in the portion where the fixing member and the support frame are fixed (hereinafter referred to as “fixed portion”). Here, in this bed constituting member, a pair of fixing members are provided, and a connecting member connects the pair of fixing members. Therefore, the external force transmitted from the drive mechanism to the bed constituent member is distributed to the pair of fixing members through the connecting member. Therefore, the stress generated in the fixing part can be distributed to the fixing parts for each of the pair of fixing members. As a result, for example, it is possible to eliminate the need to fix the fixing member to the support frame via a reinforcing member, and instead fix the fixing member directly to the support frame. As a result, for example, it is possible to reduce the number of parts of the bed device, and to form the bed device simply and firmly. If it is possible to reduce the number of parts of the couch device, for example, it is possible to reduce the cost of painting when painting the couch device. As described above, the bed device can be manufactured at low cost.

(2) In the bed constituting member according to (1) above, a configuration may be adopted in which the connecting member can be attached with the driving mechanism.

In this case, the link can attach the drive mechanism. Therefore, the external force transmitted from the drive mechanism to the bed constituent member is effectively distributed to the pair of fixing members through the connecting member. Thereby, the stress generated in the fixing portion can be reliably dispersed to the fixing portion for each of the pair of fixing members.
Further, the connecting member can be attached with the driving mechanism, and the connecting member has not only the function of dispersing the external force but also the function of mounting the driving mechanism. As a result, the number of parts can be reliably reduced, and the bed device can be manufactured at a lower cost.

(3) In the bed component according to (1) or (2) above, a configuration is adopted in which a covering member that covers the pair of fixing members and the connecting member and is fixed to the pair of fixing members is further provided. may

In this case, the covering material is fixed to a pair of fixing materials. Therefore, for example, when an external force is transmitted from the drive mechanism to the bed-constituting member, the relative displacement between the pair of fixing members can be restricted by the covering member. Thereby, the stress generated in the fixed portion can be effectively suppressed.
A covering member covers the pair of fixing member and connecting member. Thus, for example, a mattress on a bed can be supported by a covering without abutting fixings and connecting members, and the like. Thereby, the mattress can be stably supported.

(4) The bed constituent member according to any one of (1) to (3) above further includes a side member extending along the connecting member and connecting the ends of the pair of fixing members. configuration may be employed.

In this case, the side member connects the ends of the pair of fixing members. Therefore, for example, when an external force is transmitted from the drive mechanism to the bed-constituting member, the relative displacement between the pair of fixing members can be restricted by the side members. Thereby, the stress generated in the fixed portion can be effectively suppressed.

(5) The bed constituent member according to any one of (1) to (4) above may employ a configuration to which a plurality of the drive mechanisms can be attached.

In this case, the couch component can be fitted with multiple drive mechanisms. Therefore, the stress dispersing effect described above can be remarkably achieved.

(6) A bed apparatus according to the present invention includes a bed, a support base for supporting the bed, and a drive mechanism attached to the support base, wherein at least a part of the bed includes: (5), wherein the drive mechanism is attached to the support frame via the bed constituent member.

In this case, the bed device can be formed simply and firmly.

(7) In the bed device according to (6) above, the bed constituent member may form at least part of the waist bottom.

In this case, the bed forming member forms at least part of the waist bottom. Therefore, since the waist bottom is fixed substantially immovably to the support frame, the external force transmitted from the drive mechanism to the bed component can be stably transmitted to the support frame via the bed component. can be done.

(8) In the bed apparatus according to (6) or (7) above, the support frame includes a base frame having a grounding portion, a main frame to which the bed component is fixed, and the main frame attached to the base frame. an elevating mechanism connected to the elevating mechanism, wherein the driving mechanism comprises an elevating drive mechanism that transmits a driving force to the elevating mechanism to elevate the main frame with respect to the base frame; A configuration may be employed in which the mechanism is attached to the bed constituent member.

In this case, the elevation drive mechanism raises and lowers the main frame with respect to the base frame. The main frame bears the load of the user from the bed. Therefore, the lift drive mechanism performs a particularly large task among the drive mechanisms that are assumed to be applied to the bed apparatus. Since such an elevating drive mechanism is attached to the bed constituent member, the aforementioned stress dispersing effect can be remarkably achieved.

(9) In the bed device according to (8) above, the elevating mechanism includes a link mechanism having a plurality of link members, and the link mechanism includes a hinge member that connects ends of the plurality of link members. You may adopt the structure which has.

In this case, the hinge member connects the ends of the plurality of link members. Therefore, the number of parts can be reduced compared to, for example, a case where another member is interposed between the link member and the hinge member.

(10) In the bed device according to (9) above, the hinge member connects the end portions of the plurality of link members in a state of being overlapped in the hinge axial direction, and the link members are connected via the hinge member. A configuration may be employed in which the non-connected portions of the plurality of link members, excluding the ends, are spaced further apart in the hinge axis direction than the ends.

In this case, the hinge member connects the end portions of the plurality of link members while overlapping them in the hinge axis direction. Therefore, the structure of the link mechanism can be simplified.
Further, among the plurality of link members connected via the hinge member, the non-connected portions are spaced further apart in the hinge axis direction than the end portions. Therefore, even if the link mechanism operates such that the non-connected portions overlap each other when the link mechanism is viewed from the hinge axis direction when the elevating mechanism raises and lowers the main frame, the non-connected portions are not connected to each other by the hinge axis. can be reliably spaced apart in the direction. As a result, for example, it is possible to prevent the non-connected portions from rubbing against each other and peeling off the coating.

According to the present invention, the bed constituent member can be formed simply and firmly.

1 is a perspective view of a bed device according to one embodiment of the present invention; FIG. FIG. 2 is a side view of the couch device shown in FIG. 1; FIG. 2 is a top view of the couch device shown in FIG. 1; FIG. 2 is a bottom view of the couch device shown in FIG. 1; FIG. 3 is a side view showing a state in which a bed is raised in the bed device shown in FIG. 2; 2 is a perspective view showing a state in which the back bottom and leg bottoms are rotated in the bed device shown in FIG. 1; FIG. FIG. 2 is a perspective view of a part including a main frame in the couch device shown in FIG. 1, showing a state in which the bed device is turned upside down; 8 is an enlarged view of a main part of the perspective view shown in FIG. 7; FIG. FIG. 2 is a partial cross-sectional view including a waist bottom in the bed device shown in FIG. 1; FIG. 5 is a bottom view of the couch device shown in FIG. 4 and an enlarged view of a main part including a link mechanism; 11 is a perspective view of a second link that constitutes the link mechanism shown in FIG. 10, showing a state in which it is turned upside down; FIG. 11 is a perspective view of a third link that constitutes the link mechanism shown in FIG. 10; FIG. 13 is an enlarged view of a main part of the third link shown in FIG. 12; FIG.

A bed device 10 according to one embodiment of the present invention will be described below with reference to FIGS. 1 to 13. FIG. The bed device 10 can be used, for example, as a general floor bed, an ICU bed, or the like in a medical environment (including a nursing care environment). 1 to 10, the arrow H indicates the head side H direction when a person (user) sleeps, and the arrow F indicates the foot side direction F when the person sleeps. In the following description, the horizontal direction orthogonal to the front-rear direction, which is the direction of the arrows H and F, may be referred to as the left-right direction. Both the front-rear direction and the left-right direction are directions along the horizontal direction.

As shown in FIGS. 1 to 6, the bed device 10 includes a bed 11, a support frame 12, a fence 13, a board 14, an option 15, and a drive mechanism 16. The bed device 10 is a so-called electric bed using electric power as a power source.
The bed 11 is longer in the front-rear direction than in the left-right direction in plan view. The longitudinal direction of the bed 11 is the front-rear direction, and the lateral direction of the bed 11 is the left-right direction. A mattress (not shown) is placed on the bed 11 . A user lies on the bed 11 with the mattress interposed therebetween.

The bed 11 has a back bottom 21, a waist bottom 22, and a leg bottom 23. - 特許庁These back bottom 21, waist bottom 22 and leg bottom 23 are arranged in this order from the head side H to the foot side F. The back bottom 21 supports the back of the user. The waist bottom 22 supports the waist of the user. The leg bottoms 23 support the legs of the user.
The leg bottom 23 has a knee bottom 24 and a leg bottom 25. - 特許庁These knee bottoms 24 and leg bottoms 25 are arranged in this order from the head side H to the foot side F. The knee bottom 24 supports the user's knees and hips. The leg bottom 25 supports the user's knees and toes.

The support frame 12 supports the bed 11 . The support frame 12 receives the loads of the bed 11 and the user on the bed 11 . As shown in FIGS. 2 and 4, the support frame 12 includes a base frame 31, a main frame 32, and an elevating mechanism 33. As shown in FIG.
The base frame 31 is grounded on the ground plane. The base frame 31 has a rectangular shape in plan view. The base frame 31 includes a first vertical member 34 extending in the front-rear direction, a first horizontal member 35 extending in the left-right direction, and a ground contact portion 36 contacting the ground surface.

A pair of first vertical members 34 are provided with an interval in the left-right direction.
The first horizontal member 35 is installed between the pair of left and right first vertical members 34 . The first horizontal member 35 connects the pair of left and right first vertical members 34 in the left-right direction. A pair of first horizontal members 35 are provided with a space therebetween in the front-rear direction. The first horizontal member 35 is immovably fixed to the first vertical member 34 . The first horizontal member 35 is welded (fixed) to the first vertical member 34 .

The grounding portion 36 is provided at an end portion in the front-rear direction of the first vertical member 34 . An end portion of the first vertical member 34 in the front-rear direction protrudes further outward in the front-rear direction than the first horizontal member 35 . In the illustrated example, casters are used as the contacting portions 36, but it is also possible to use rubber covers in place of the casters.

A main frame 32 supports the bed 11 . The main frame 32 has a rectangular shape in plan view. The main frame 32 includes a second vertical member 37 extending in the front-rear direction, a second horizontal member 38 extending in the left-right direction, and an option attachment portion 39 for attaching the option 15 .

A pair of the second vertical members 37 are provided with an interval in the left-right direction.
The second horizontal member 38 connects the pair of left and right second vertical members 37 in the left-right direction. A pair of the second horizontal members 38 are provided spaced apart in the front-rear direction. The second transverse member 38 is immovably fixed to the second longitudinal member 37 . The second horizontal member 38 is welded (fixed) to the second vertical member 37 . The left-right end of the second horizontal member 38 protrudes further in the left-right direction than the second vertical member 37 .
The option mounting portion 39 is provided at the left-right end portion of the second horizontal member 38 .

As shown in FIGS. 4 and 5, the elevating mechanism 33 connects the main frame 32 to the base frame 31 so as to be able to move up and down. The lifting mechanism 33 includes a pair of front and rear lifting units 40 . The pair of lifting units 40 are arranged so as to sandwich the waist bottom 22 in the front-rear direction. Each lifting unit 40 includes a pair of left and right link mechanisms 41 and a connecting member 42 that connects the pair of left and right link mechanisms 41 . The lifting mechanism 33 lifts and lowers the bed 11 by operating the pair of front and rear lifting units 40 in parallel.

As shown in FIGS. 1 and 6, the support frame 12 supports a portion (movable bottom) of the bed 11 so as to be rotatable around a rotation shaft 26 extending in the left-right direction. The bed device 10 is a so-called gap bed. In this embodiment, the waist bottom 22 is fixed to the support frame 12, and the back bottom 21 and the leg bottom 23 are rotatably connected to the waist bottom 22. As shown in FIG.

The rotating shaft 26 includes a first rotating shaft 26 a connecting the back bottom 21 and the waist bottom 22 and a second rotating shaft 26 b connecting the leg bottom 23 and the waist bottom 22 .
The knee bottom 24 and the leg bottom 25 are rotatably connected around a bending shaft 27 extending in the left-right direction. Therefore, when the leg bottom 23 rotates around the second rotation shaft 26b, the leg bottom 23 bends upward so that the bending shaft 27 forms a vertex.

The boards 14 are arranged at both ends of the support frame 12 in the front-rear direction. The board 14 is formed in a plate-like shape with front and back surfaces facing in the front-rear direction. The board 14 is detachably attached to the support frame 12 . The board 14 includes a headboard 14a located on the head side H and a footboard 14b located on the foot side F.

The rails 13 are arranged at the left and right ends of the support frame 12 . In this embodiment, the rails 13 are arranged on both sides of the support base 12 in the left-right direction. A pair of rail bodies 13 are provided at intervals in the front-rear direction. The rail body 13 is connected to the support frame 12 so as to be movable up and down.

The fence body 13 is biased toward the head side H along the front-rear direction. In a side view of the bed device 10 in the left-right direction, the fence 13 is close to the headboard 14a and separated from the footboard 14b.
The option 15 is detachably attached to the option attachment portion 39 . A spacer 15a is provided as the option 15 in this embodiment. The spacer 15a closes the space between the rail 13 and the footboard 14b in the side view.

As shown in FIG. 4, the drive mechanism 16 is attached to the support cradle 12 . A plurality of drive mechanisms 16 are provided. A plurality of drive mechanisms 16 are arranged below the bed 11 . The drive mechanism 16 moves at least a portion (movable portion) of the bed 11 and the support frame 12 . The drive mechanism 16 is a linear actuator that extends and contracts in the front-rear direction.

The drive mechanism 16 includes an elevation drive mechanism 51 that raises and lowers the bed 11, and a rotation drive mechanism 52 that rotates the back bottom 21 or the leg bottom 23 (movable bottom).
The elevation driving mechanism 51 transmits driving force to the elevation mechanism 33 to raise and lower the main frame 32 with respect to the base frame 31 . A plurality of elevation drive mechanisms 51 are provided. A pair of lifting drive mechanisms 51 are provided in the front-rear direction. The pair of elevation drive mechanisms 51 are arranged in the center of the bed 11 in the left-right direction.

Both ends of each elevation drive mechanism 51 in the front-rear direction are attached to the main frame 32 and the elevation unit 40 , respectively. In the head-side H elevation drive mechanism 51 , the head-side H end is attached to the head-side H elevation unit 40 , and the foot-side F end is attached to the main frame 32 . In the lifting drive mechanism 51 on the foot side F, the end on the foot side F is attached to the lifting unit 40 on the foot side F, and the end on the head side H is attached to the main frame 32 .

The rotation drive mechanism 52 includes a first drive mechanism 53 that rotates the back bottom 21 and a second drive mechanism 54 that rotates the leg bottom 23 . The first drive mechanism 53 and the second drive mechanism 54 are arranged so as to sandwich the elevation drive mechanism 51 in the left-right direction. Both ends of the first drive mechanism 53 in the front-rear direction are attached to the support frame 12 and the back bottom 21 respectively. Both ends of the second drive mechanism 54 in the front-rear direction are attached to the support frame 12 and the leg bottom 23, respectively.

In the present embodiment, the support base 12 is provided with an attachment member 43 to which the rotary drive mechanisms 52 are commonly attached. The mounting member 43 is installed in the left-right direction between the second vertical members 37 . The attachment member 43 is arranged on the foot side F of the waist bottom 22 . To the mounting member 43, the ends of the rotation drive mechanisms 52 on the foot side F in the front-rear direction are commonly mounted. This simplifies the structure compared to, for example, the case where each rotation drive mechanism 52 is attached to separate members of the support frame 12 .

As shown in FIGS. 7 to 9, at least part of the bed 11 is configured by a bed component member 60. As shown in FIGS. In this embodiment, the waist bottom 22 is formed by the bed constituent member 60 . The waist bottom 22 is composed of only one bed-constituting member 60. - 特許庁In other words, the bed forming member 60 forms at least a portion (entirely in the illustrated example) of the waist bottom 22 .
The bed constituent member 60 is fixed to the support frame 12 . The bed constituent member 60 is welded (fixed) to the main frame 32 . A drive mechanism 16 can be attached to the bed component member 60, and in this embodiment, a plurality of drive mechanisms 16 can be attached. A lifting drive mechanism 51 is attached to the bed forming member 60 .

As shown in FIGS. 8 and 9 , the bed component member 60 includes a pair of fixing members 61 , connecting members 62 , covering members 63 and side members 64 . A pair of fixing members 61 are arranged on the support frame 12 with a gap therebetween and are fixed to the support frame 12 . Each fixing member 61 extends in the left-right direction. The pair of fixing members 61 are spaced apart in the front-rear direction. Each fixing member 61 is laid over a pair of left and right second vertical members 37 . The left and right ends of each fixing member 61 protrude outward in the left and right direction from the pair of left and right second vertical members 37 . Each fixing member 61 is welded (fixed) to the second vertical member 37 . The fixing member 61 is a pipe (tubular). The shape of the fixing member 61 viewed from the left-right direction is rectangular. The inner surfaces of the pair of fixing members 61 face each other in the front-rear direction.

The connecting member 62 connects the pair of fixing members 61 . The connecting member 62 connects at least one of inner surfaces of the pair of fixing members 61 and lower surfaces of the pair of fixing members 61 . In this embodiment, the connecting member 62 is arranged between the pair of fixing members 61 and connects the inner surfaces of the pair of fixing members 61 . In this embodiment, the connecting member 62 is arranged only between the pair of fixing members 61, but the form of the connecting member 62 is not limited to this. For example, the connecting member 62 may be arranged below the pair of fixing members 61 and the upper surface of the connecting member 62 may be fixed to the lower surface of each fixing member 61 . Further, for example, the connecting members 62 may protrude from the pair of fixing members 61 in the front-rear direction, and may be connected while sandwiching the pair of fixing members 61 in the front-rear direction.
A plurality of connecting members 62 are provided at intervals. In this embodiment, a pair of connecting members 62 are arranged with a gap in the left-right direction. The connecting member 62 connects the pair of fixing members 61 in the front-rear direction. Both ends of the connecting member 62 in the front-rear direction are welded (fixed) to the fixing member 61 .

The pair of connecting members 62 is arranged at the center of the pair of fixing members 61 in the left-right direction. Each connecting member 62 is formed to have the same shape and size as each other. The connecting member 62 is a plate (plate-like). The connecting member 62 extends along an orthogonal plane perpendicular to the left-right direction. The connecting member 62 is longer in the front-back direction than in the up-down direction.

The connecting member 62 includes a body plate 65 and a protruding plate 66 . The main body plate 65 is formed in a rectangular shape elongated in the front-rear direction when viewed from the front of the main body plate 65 . Both upper and lower edges of the main body plate 65 are arranged at the same positions in the vertical direction with respect to both upper and lower surfaces of the connecting member 62 . Front and rear edges of the body plate 65 are welded (fixed) to the fixing member 61 .

The protruding plate 66 protrudes downward from the body plate 65 . The protruding plate 66 is arranged at the foot-side F end of the body plate 65 . The projecting plate 66 is formed in a rectangular shape when the projecting plate 66 is viewed from the front. The projecting plate 66 is smaller than the body plate 65 in the front-rear direction.

The covering material 63 covers the pair of fixing members 61 and the connecting member 62 and is fixed to the pair of fixing members 61 . The covering material 63 covers the pair of fixing material 61 and connecting material 62 from above. The covering material 63 is formed in a plate shape whose front and back surfaces face up and down. The covering material 63 is formed in a rectangular shape elongated in the left-right direction when the covering material 63 is viewed from the front. The lateral size of the coating material 63 is the same as the lateral size of the fixing member 61 . Front and rear ends of the covering material 63 are arranged on and fixed to the fixing members 61 . The upper edge of the body plate 65 abuts against the lower surface of the covering material 63 .

The side member 64 extends along the connecting member 62 and connects the ends of the pair of fixing members 61 . The side member 64 extends in the front-rear direction. The side member 64 connects the ends of the pair of fixing members 61 in the left-right direction. The side members 64 are formed to have the same shape and size as each other. The side member 64 is a plate (plate-like). The side member 64 extends along an orthogonal plane orthogonal to the left-right direction. The side member 64 extends parallel to the connecting member 62 . The side member 64 is longer in the front-rear direction than in the up-down direction. The side member 64 is longer in the front-rear direction than the connecting member 62 and the covering member 63 . The side member 64 is welded (fixed) to the fixing member 61 .

The connecting member 62 can attach the drive mechanism 16 . The drive mechanism 16 is sandwiched between adjacent connecting members 62 . A mounting hole 67 is formed in the connecting member 62 . The mounting holes 67 are provided in the projecting plate 66 . The mounting holes 67 are provided in pairs at positions facing each other in the left-right direction in the pair of left and right connecting members 62 . The drive mechanism 16 is rotatably attached to a pair of left and right attachment holes 67 . A pair of left and right mounting holes 67 are provided in the front-rear direction. Thereby, the connecting member 62 can attach a pair of drive mechanisms 16 .

As shown in FIG. 9 , a pair of front and rear lifting drive mechanisms 51 are attached to the connecting member 62 . The foot-side F end of the head-side H elevation drive mechanism 51 and the head-side H end of the foot-side F elevation drive mechanism 51 are attached to the pair of connecting members 62 . The elevation drive mechanism 51 on the head side H and the elevation drive mechanism 51 on the foot side F are attached to a common connecting member 62 . As a result, the number of parts can be reduced compared to, for example, the case where the elevation drive mechanism 51 on the head side H and the elevation drive mechanism 51 on the foot side F are attached to separate connecting members 62 .

As shown in FIGS. 5 and 10, the link mechanism 41 includes a plurality of link members 71 and hinge members 72 in this embodiment.
The link member 71 is formed in a plate shape with front and back surfaces facing in the left-right direction. The link member 71 is formed in a rectangular shape when viewed from the left and right from the front.

The hinge member 72 connects end portions of the plurality of link members 71 . The hinge member 72 is formed in the shape of a shaft extending in the left-right direction. In this embodiment, the hinge axis, which is the axis of the hinge member 72, extends in the left-right direction, and the hinge axis direction is the left-right direction. The hinge member 72 connects the end portions of the plurality of link members 71 while overlapping them in the left-right direction.

In the link mechanism 41 in the lifting unit 40 on the head side H, the link member 71 includes a first link 73 , a second link 74 and a third link 75 . The first link 73 is fixed to the base frame 31 . The second link 74 is fixed to the main frame 32 . A third link 75 connects the first link 73 and the second link 74 . The third links 75 of the pair of left and right link mechanisms 41 are connected via the connecting member 42 .

As shown in FIG. 11, the end portion 74a of the second link 74 that is connected to the third link 75 is laterally offset with respect to the portion other than the end portion 74a. As a result, as shown in FIG. 10, of the second link 74 and the third link 75, which are connected via the hinge member 72, the non-connected portions excluding the ends are laterally wider than the ends. away.

As shown in FIGS. 12 and 13, the end portion 75a of the third link 75 connected to the first link 73 is laterally offset with respect to the portion other than the end portion 75a. As a result, as shown in FIG. 10, of the first link 73 and the third link 75 that are connected via the hinge member 72, the non-connected portions excluding the ends are arranged in the horizontal direction relative to the ends. away.

As described above, according to the bed component 60 and the bed device 10 according to this embodiment, the external force from the drive mechanism 16 is transmitted to the bed component 60 when the drive mechanism 16 operates. At this time, stress is generated in the portion where the fixing member 61 and the support frame 12 are fixed (hereinafter referred to as “fixed portion 60a” (see FIG. 8)). Here, in this bed-constituting member 60, a pair of fixing members 61 are provided, and a connecting member 62 connects the pair of fixing members 61 together. Therefore, the external force transmitted from the driving mechanism 16 to the bed constituent member 60 is distributed to the pair of fixing members 61 through the connecting members 62 . Therefore, the stress generated in the fixing part 60a can be distributed to the fixing part 60a for each of the pair of fixing members 61. As shown in FIG. As a result, for example, the fixing member 61 does not need to be fixed to the support frame 12 via a reinforcing member, and the fixing member 61 can be directly fixed to the support frame 12, or the like. As a result, for example, the number of parts of the bed device 10 can be reduced, and the bed device 10 can be formed simply and firmly. If the number of parts of the bed device 10 can be reduced, for example, the cost of painting the bed device 10 can be reduced. Thereby, the bed device 10 can be manufactured at low cost.

A link 62 can attach the drive mechanism 16 . Therefore, the external force transmitted from the drive mechanism 16 to the bed constituent member 60 is effectively dispersed to the pair of fixing members 61 through the connecting members 62 . As a result, the stress generated in the fixing portion 60a can be reliably distributed to the fixing portions 60a of the pair of fixing members 61, respectively.
The connecting member 62 can attach the driving mechanism 16 , and the connecting member 62 has not only the function of dispersing the external force but also the function of mounting the driving mechanism 16 . As a result, the number of parts can be reliably reduced, and the bed device 10 can be manufactured at a lower cost.
A couch component 60 is capable of mounting a plurality of drive mechanisms 16 . Therefore, the stress dispersing effect described above can be remarkably achieved.

A covering member 63 is fixed to the pair of fixing members 61 . Therefore, for example, when the external force from the driving mechanism 16 is transmitted to the bed constituting member 60, the relative displacement between the pair of fixing members 61 can be regulated by the covering member 63, or the like. Thereby, the stress generated in the fixed portion 60a can be effectively suppressed.
A covering material 63 covers the pair of fixing material 61 and connecting material 62 . Therefore, for example, the mattress on the bed 11 can be supported by the covering material 63 without being brought into contact with the fixing material 61 and the connecting material 62 . As described above, the mattress can be stably supported.

A side member 64 connects the ends of the pair of fixing members 61 . Therefore, for example, when an external force is transmitted from the drive mechanism 16 to the bed constituting member 60, the relative displacement between the pair of fixing members 61 can be restricted by the side members 64, or the like. Thereby, the stress generated in the fixed portion 60a can be effectively suppressed.
Since the fixing member 61 is a pipe, the bed device 10 can be reliably formed simply and strongly.

A plurality of connecting members 62 are provided at intervals. Therefore, the external force transmitted from the driving mechanism 16 to the bed constituting member 60 can be reliably distributed to the pair of fixing members 61 while reducing the weight of each connecting member 62 .
Note that when the drive mechanism 16 can be attached to the connecting members 62 as in the present embodiment, the drive mechanism 16 can be sandwiched between adjacent connecting members 62, for example. Thereby, the driving mechanism 16 can be firmly attached to the connecting member 62 .

The elevation drive mechanism 51 raises and lowers the main frame 32 with respect to the base frame 31 . A user's load is applied from the bed 11 to the main frame 32 . Therefore, the lifting drive mechanism 51 performs a particularly large job among the drive mechanisms 16 that are assumed to be applied to the bed device 10 . Since such a lifting drive mechanism 51 is attached to the bed forming member 60, the aforementioned effect of dispersing stress can be remarkably achieved.

A bed forming member 60 forms at least part of the waist bottom 22 . Therefore, since the waist bottom 22 is fixed substantially immovably to the support frame 12 , the external force transmitted from the drive mechanism 16 to the bed component member 60 can be transferred to the support frame 12 via the bed component member 60 . can be stably transmitted to

A hinge member 72 connects ends of the plurality of link members 71 . Therefore, the number of parts can be reduced compared to, for example, the case where another member is interposed between the link member 71 and the hinge member 72 .
A hinge member 72 connects the end portions of the plurality of link members 71 while overlapping them in the left-right direction. Therefore, the structure of the link mechanism 41 can be simplified.
Of the plurality of link members 71 that are connected via hinge members 72, the non-connected portions are spaced apart in the left-right direction from the ends. Therefore, even if the link mechanism 41 is operated so that the non-connected portions overlap each other when the link mechanism 41 is viewed from the left-right direction when the elevating mechanism 33 moves the main frame 32 up and down, the non-connected portions do not overlap each other. can be reliably spaced apart in the left-right direction. As a result, for example, it is possible to prevent the non-connected portions from rubbing against each other and peeling off the coating.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

The fence 13, the board 14, and the option 15 may be omitted.

The lifting mechanism 33 is not limited to the configuration shown in the above embodiment. For example, a so-called X-link elevating mechanism 33 may be employed.

In the above-described embodiment, the elevation drive mechanism 51 is attached to the bed constituent member 60, but the present invention is not limited to this. For example, the rotation drive mechanism 52 may be attached to the bed component 60 .
Although a plurality of drive mechanisms 16 are attached to the bed component 60 in the above embodiment, the present invention is not limited to this. For example, only one drive mechanism 16 may be attached to the bed component 60 .
Although the drive mechanism 16 is attached to the connecting member 62 in the above embodiment, the present invention is not limited to this. For example, the drive mechanism 16 may be attached to a member different from the coupling member 62 in the bed component member 60 .

The number of connecting members 62 that connect the pair of fixing members 61 is not limited to two, and may be three or more, or may be one.
The fixing member 61 may not be a pipe, and the connecting member 62 may not be a plate. For example, the fixing member 61 and the connecting member 62 may be rod-shaped.
The side member 64 need not be a plate. For example, the side member 64 may be formed integrally with the fixing member 61, and the entire pair of fixing members 61 and the pair of side members 64 may be formed into a rectangular frame.
The bed component 60 may be without the covering material 63 and the side material 64 .

In the above embodiment, the waist bottom 22 is composed of only one bed component member 60 . However, the present invention is not limited to this. For example, the waist bottom 22 may be composed of a plurality of bed-constituting members 60 . The waist bottom 22 may be formed by a combination of one bed forming member 60 and another member.

In the above-described embodiment, a 4ACT (4-motor) Gatch bed having both the back bottom 21 and the leg bottom 23 as movable bottoms and having a lifting mechanism 33 for lifting and tilting the bed 11 is adopted. The invention is not limited to this. For example, 3ACT (3 motors) without a tilting mechanism, 2ACT (2 motors) without a lifting mechanism, or 1ACT (1 motor) in which only one of the back bottom 21 or the leg bottom 23 rotates is adopted. is also possible. In the case of a one-act (one-motor) gatch bed, the sleeper device 10 can be preferentially equipped with a back lifting function in which the back bottom 21 is a movable bottom. That is, the present invention can adopt a configuration in which at least one of the back bottom 21 and the leg bottoms 23 is a movable bottom, and at least the back bottom 21 of the back bottom 21 and the leg bottoms 23 can be a movable bottom. can be adopted.
Furthermore, the present invention is not limited to application to motorized gatch beds. The present invention can also be applied to a manually operated gatch bed in which the drive mechanism 16 is powered by human power.

In addition, it is possible to appropriately replace the constituent elements in the above-described embodiment with well-known constituent elements without departing from the spirit of the present invention, and the modifications described above may be combined as appropriate.

10 Bed device 11 Bed 12 Support frame 16 Drive mechanism 22 Waist bottom 31 Base frame 32 Main frame 33 Elevator mechanism 36 Ground part 41 Link mechanism 51 Elevator drive mechanism 60 Bed constituent member 61 Fixing member 62 Connecting member 63 Covering member 64 Side member 71 Link member 72 Hinge member

Claims (6)

a bed and
a pair of lifting drive mechanisms;
In a sleeper apparatus comprising
At least a part of the bed is configured by a bed-constituting member arranged in the center of the bed in the front-rear direction,
The pair of elevation drive mechanisms has a first elevation drive mechanism positioned on the front side and a second elevation drive mechanism positioned on the rear side,
a rear end portion of the first elevation drive mechanism and a front end portion of the second elevation drive mechanism are attached to the bed-constituting member, respectively;
A bed-constituting member, wherein the elevation driving mechanism tilts the bed. 2. The bed constituent member according to claim 1, wherein said bed constituent member comprises a pair of fixing members and a connecting member for connecting said pair of fixing members. The connecting member has a first mounting hole and a second mounting hole,
a rear end of the first elevation drive mechanism is rotatably attached to the first attachment hole,
The front end of the second lifting drive mechanism is rotatably attached to the second attachment hole,
The bed constituent member according to claim 2, characterized in that: The bed constituent member according to claim 2 or 3, further comprising a covering member covering the pair of fixing members and the connecting member and fixed to the pair of fixing members. 5. The bed constituting member according to any one of claims 2 to 4, further comprising a side member extending along the connecting member and connecting end portions of the pair of fixing members. The bed apparatus according to any one of claims 1 to 5, wherein the bed forming member forms at least part of a waist bottom.

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