bed

Abstract

To provide a bed that can prevent a board from wobbling.SOLUTION: A bed comprises a bed body part, and a head board 10A detachably attached to the bed body part. The head board 10A comprises a board body part 11, and a board bracket 12 fixed to the board body part 11. The bed body part 2 comprises a board stay 22C to which the board bracket 12 is attached. A sheet 13 (elastic member) is provided between the board body part 11 and the board stay 22C.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to a bed.

Background Art

[0002] In a conventional bed, the board is attached to the bed main body by inserting the opening of the board bracket into the attachment stay of the bed main body.

Prior Art Documents

Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the opening of the board bracket is set to a dimension that is considered to be able to absorb the welding error, warping, and left-right parallelism of the attachment stay so that it can be assembled. Therefore, when the board bracket is attached to the attachment stay, there is a gap between the two, causing the board to wobble. As a result, it becomes unstable when the user walks along while touching the board.

[0005] Therefore, an object of the present invention is to provide a bed capable of preventing the board from wobbling.

Means for Solving the Problems

[0006] A bed according to one embodiment comprises a bed body and a board detachably attached to the bed body, wherein the board comprises a board body and a mounting portion fixed to the board body, the bed body comprises a mounting portion to which the mounting portion is attached, and an elastic member is provided between the board body and the mounting portion.

[0007] The elastic member may be in the form of a sheet and may have a convex portion that bulges out in a convex shape when no external force is applied.

[0008] The top of the convex portion may be located below the central portion in the vertical direction of the elastic member.

[0009] The top of the convex portion may have a width that is aligned with the width direction of the board.

[0010] The mounting portion comprises a housing portion for housing the portion to be mounted and a fixed portion provided to surround the outer circumference of the housing portion except for the lower side, the elastic member is provided to surround the outer circumference of the convex portion except for the lower side and has an outer edge portion with a notch formed therein, the mounting portion is fixed to the board body portion by fixing the portion to be fixed to the board body portion with a fixing member while the elastic member is sandwiched between the board body portion and the mounting portion, the elastic member has the convex portion located within the housing portion and the outer edge portion sandwiched between the board body portion and the portion to be fixed, and the fixing member may pass through the notch in the outer edge portion. [Effects of the Invention]

[0011] This invention can provide a bed that can prevent the board from wobbling. [Brief explanation of the drawing]

[0012] [Figure 1] This is an exploded perspective view of the bed according to this embodiment. [Figure 2] This is a perspective view showing the bed's head frame and headboard before assembly. [Figure 3](a) is a perspective view of the front end of the head frame, and (b) is an enlarged perspective view of the board stay. [Figure 4] (a) is a perspective view of the headboard, and (b) is an exploded perspective view of the headboard. [Figure 5] This is a perspective view of the board bracket and seat from below. [Figure 6] This is a plan view of the sheet. [Figure 7] (a) is a cross-sectional view of the sheet in Figure 6 along the line VIa-VIa, (b) is a cross-sectional view of the sheet in Figure 6 along the line VIb-VIb, and (c) is a cross-sectional view of the sheet in Figure 6 along the line VIc-VIc. [Figure 8] This is a vertical dial showing the board bracket of the board body inserted into the board stay of the bed body. [Modes for carrying out the invention]

[0013] One embodiment of the present invention will be described below with reference to the drawings. Figure 1 is an exploded perspective view of the bed 1 according to this embodiment.

[0014] The bed 1 shown in Figure 1 is an electric care bed used, for example, in hospitals and nursing care facilities. The bed 1 is formed in a roughly rectangular shape with a vertical elongation in a plan view in order to support the body of a person lying down.

[0015] Bed 1 comprises a bed body 2, a headboard 10A, and a footboard 10B. Bed body 2 comprises a base frame 21, a bed frame 20 (22, 23, 24) installed on top of the base frame 21, and a bottom 30 provided on top of the bed frame 20. The headboard 10A and footboard 10B are provided at the front and rear ends of bed body 2, respectively.

[0016] The bed frame 20 has a head frame 22, a center frame 23, and a foot frame 24. Fixed legs 25 are attached to the four corners of the base frame 21 respectively. The fixed legs 25 stand on the floor and support the base frame 21 from below. The base frame 21, the head frame 22, the center frame 23, and the foot frame 24 are made of steel.

[0017] The bottom 30 supports a mattress (not shown) from below and has a plurality of bottom elements such as a back bottom 31, a lumbar bottom 32, a knee bottom 33, and a leg bottom 34. The bottom 30 is made of, for example, steel or synthetic resin.

[0018] When the bed 1 is being transported or stored, it is disassembled into a plurality of main components such as the base frame 21, the head frame 22, the center frame 23, the foot frame 24, the back bottom 31, the lumbar bottom 32, the knee bottom 33, the leg bottom 34, the headboard 10A, and the footboard 10B. When those separated components are connected to each other, the completed bed is assembled.

[0019] Figure 2 is a perspective view showing the state before assembly of the head frame 22 and the headboard 10A of the bed 1. Figure 3(a) is a perspective view of the front end of the head frame 22, and Figure 3(b) is an enlarged perspective view of the board stay 22C.

[0020] Headboards 10A and 10B are almost identical in shape, and only headboard 10A will be described. Headboard 10A is mounted on the front end of the head frame 22. As shown in Figure 3(a), the head frame 22 has a pair of horizontal frame members 22A and a connecting member 22B that connects the pair of horizontal frame members 22A. At the front end of each horizontal frame member 22A, a board stay 22C is inserted into the inside of the horizontal frame member 22A and fixed by a knob bolt. The overall length of the bed 1 can be changed by pulling out or pushing the board stay 22C relative to the horizontal frame member 22A. As shown in Figure 3(b), the front end of the board stay 22C is substantially flat, and its thickness T1 in the front-rear direction is, for example, about 7.4 mm. The board stay 22C has an insertion hole 22d on which a hook 12E, described later, can be hooked. The board stay 22C corresponds to the mounting part.

[0021] Figure 4(a) is a perspective view of the headboard 10A, and Figure 4(b) is an exploded perspective view of the headboard 10A. Figure 5 is a perspective view of the board bracket 12 and the sheet 13 from below.

[0022] The headboard 10A comprises a board body 11, a pair of board brackets 12, and a pair of seats 13. The board body 11 is made of, for example, wood or metal. Multiple screw holes 11a are formed in the board body 11. Each board bracket 12 is made of metal, is configured as a pocket with an open bottom, and is attached to the lower ends of both ends in the width direction of the inner wall surface of the board body 11. The board brackets 12 constitute the mounting portion.

[0023] Each board bracket 12 has a housing portion 12A and a fixed portion 12B. The housing portion 12A has a roughly box shape with openings on the bottom and the board body portion 11 side, and a slit 12c is formed therein. The fixed portion 12B is provided so as to surround the outer circumference of the housing portion 12A except for the bottom side, and has a plurality of screw insertion holes 12d formed therein. By inserting a plurality of screws 14 through the plurality of screw insertion holes 12d of the fixed portion 12B, each board bracket 12 is fixed to the inner wall surface of the board body portion 11. A hook 12E (not shown in Figures 3 and 4, see Figure 5) is rotatably supported at the upper end of the front of each board bracket 12. When the headboard 10A is attached to the head frame 22, each hook 12E is configured to catch on each insertion hole 22d. As a result, the headboard 10A will not come off even if it is lifted upwards.

[0024] Figure 6 is a plan view of sheet 13. Figure 7(a) is a cross-sectional view of sheet 13 in Figure 6 along the line VIa-VIa, Figure 7(b) is a cross-sectional view of sheet 13 in Figure 6 along the line VIb-VIb, and Figure 7(c) is a cross-sectional view of sheet 13 in Figure 6 along the line VIc-VIc.

[0025] As shown in Figure 4, each sheet 13 is interposed between the headboard 10A and each board bracket 12. As shown in Figures 6 and 7, the elastic sheet 13 is made of resin (e.g., polypropylene) with a thickness T2 of approximately 2 mm and has a convex portion 13A and an outer edge portion 13B.

[0026] The convex portion 13A has a roughly dome shape that bulges out in a convex shape when no external force is applied, and has a apex 13C. The height H of the apex 13C is approximately 2 mm. Therefore, the thickness T3 of the sheet 13 when no external force is applied is approximately 4 mm. As shown in Figures 6 and 7(a), the apex 13C is located below the center of the sheet 13 in the vertical direction. The apex 13C of the convex portion 13A has a width W along the width direction of the headboard 10A. Therefore, the convex portion 13A has inclined surfaces 13D and 13E above and below the apex 13C.

[0027] The outer edge portion 13B is provided so as to surround the outer circumference of the convex portion 13A, excluding the lower side, and has a plurality of notches 13f formed therein. The plurality of notches 13f are formed on both the left and right sides of the upper end and on both the left and right sides of the lower portion, respectively.

[0028] As shown in Figure 4(b), each sheet 13 is sandwiched between the board body 11 and each board bracket 12, and the fixed portion 12B is fixed to the board body 11 by four fixing members, which are screws 14, thereby fixing each board bracket 12 to the board body 11. Each sheet 13 has a convex portion 13A located inside the housing portion 12A, and its outer edge 13B is sandwiched between the board body 11 and the fixed portion 12B (see also Figure 8), and each screw 14 passes through a notch 13f in the outer edge 13B. As shown in Figure 5, the gap G between the sheet 13 and the housing portion 12A at the opening of the board bracket 12 is approximately 8 mm. Therefore, the gap between the top 13C of the convex portion 13A and the housing portion 12A is 6 mm, which is smaller than the thickness T1 (7.4 mm) of the board stay 22C.

[0029] Figure 8 is a vertical cross-sectional view showing the state in which the board bracket 12 of the board body 11 is inserted into the board stay 22C of the bed body 2.

[0030] When inserting the board stay 22C into the board bracket 12, the board stay 22C causes the convex portion 13A of the sheet 13 to elastically deform and be compressed, while the board stay 22C is inserted up to the upper end of the board bracket 12. As shown in Figure 8, the upper end of the board stay 22C is in contact with the upper end of the housing portion 12A. The convex portion 13A of the sheet 13 is compressed by the board stay 22C, but not completely, and there is a small gap between the top of the convex portion 13A and the board body portion 11. The convex portion 13A of the sheet 13 biases the board stay 22C toward the bed body portion 2 due to its elastic force. As a result, the sheet 13 constantly generates a repulsive force between the board body portion 11 and the board stay 22C, which prevents the headboard 10A from wobbling.

[0031] As described above, according to the bed 1 of this embodiment, the headboard 10A comprises a board body portion 11 and a board bracket 12 fixed to the board body portion 11, the bed body portion 2 comprises a board stay 22C to which the board bracket 12 is attached, and a sheet 13 (elastic member) is provided between the board body portion 11 and the board stay 22C. As a result, the elastic force of the sheet 13 constantly generates a repulsive force between the board body portion 11 and the board stay 22C, thereby preventing the headboard 10A from wobbling.

[0032] The sheet 13 is sheet-like and has a convex portion 13A that bulges out in a convex shape when no external force is applied. By elastically deforming and crushing the convex portion 13A, a repulsive force can be constantly generated between the board body 11 and the board stay 22C by the convex portion 13A.

[0033] The top 13C of the convex portion 13A is located below the vertical center of the seat 13. This allows a constant repulsive force to be generated between the board body 11 and the board stay 22C at a position away from the upper end of the housing portion 12A (the upper end of the board stay 22C), thereby reliably preventing the headboard 10A from wobbling.

[0034] The top 13C of the convex portion 13A has a width W that is in line with the width direction of the headboard 10A. As a result, when the board stay 22C is attached to the board bracket 12, the contact area of ​​the seat 13 with the board stay 22C is increased, so that the headboard 10A can be reliably prevented from wobbling.

[0035] With each sheet 13 sandwiched between the board body 11 and each board bracket 12, each board bracket 12 is fixed to the board body 11 by securing the fixed portion 12B to the board body 11 with four fixing members, which are screws 14. Each sheet 13 has a convex portion 13A located within the housing portion 12A, and its outer edge 13B is sandwiched between the board body 11 and the fixed portion 12B (see also Figure 8), and each screw 14 passes through the notch 13f of the outer edge 13B. In this way, since the sheet 13 is sandwiched between the conventional board body 11 and board bracket 12 configuration, the sheet 13 can be added to the headboard 10A with almost no effect on the assembly of the headboard 10A.

[0036] It should be noted that the present invention is not limited to the embodiments described above. Those skilled in the art can make various additions and modifications within the scope of the present invention.

[0037] For example, although the seat 13 was made of resin, it may also be made of metal. The shape of the seat 13 is not limited to the shape of the embodiment described above, but may also be in the shape of a leaf spring, disc spring, etc. Although the seat 13 was provided on the headboard 10A, it may also be attached to the front of the board stay 22C. [Explanation of symbols]

[0038] 1: Bed, 2: Bed frame, 10A: Headboard, 11: Board frame, 12: Board bracket, 12A: Storage section, 12B: Fixing section, 13: Sheet, 13A: Convex section, 13B: Outer edge, 13C: Top, 13f: Notch, 14: Screw, 22C: Board stay

Claims

1. A bed comprising a bed frame and a board that is detachably attached to the bed frame, The board comprises a board body and a mounting portion fixed to the inner wall surface of the board body. The bed body portion includes a mounting portion to which the mounting portion is attached, An elastic member is provided between the board body and the mounting portion in the longitudinal direction of the bed. A bed in which the mounting portion is biased from the board body towards the bed body by the elastic member.

2. The elastic member is fixed in a state sandwiched between the board body and the mounting portion. The mounting portion has a housing portion that accommodates at least the upper end of the portion to be mounted, and an opening through which the elastic member is exposed to the bed body side. The bed according to claim 1, wherein the mounting portion is located between the opening and the elastic member when its upper end is inserted into the housing portion.

3. A bed comprising a bed frame and a board that is detachably attached to the bed frame, The board comprises a board body and a mounting portion fixed to the board body. The bed body portion includes a mounting portion to which the mounting portion is attached, An elastic member is provided between the board body and the mounting portion in the longitudinal direction of the bed. The mounting portion has a housing portion that accommodates at least the upper end of the portion to be mounted, The elastic member is in contact with at least the part of the mounting portion below its vertical center, The upper end of the mounting portion is in contact with the upper end of the housing portion, which is a bed.

4. The bed according to any one of claims 1 to 3, wherein the elastic member is in the form of a sheet and has a convex portion that bulges out in a convex shape when no external force is applied.

5. The bed according to claim 4, wherein the top of the convex portion is located below the central portion in the vertical direction of the elastic member.

6. The bed according to claim 4, wherein the top of the convex portion has a width along the width direction of the board.

7. A bed comprising a bed frame and a board that is detachably attached to the bed frame, The board comprises a board body and a mounting portion fixed to the board body. The bed body portion includes a mounting portion to which the mounting portion is attached, An elastic member is provided between the board body and the mounting portion. The elastic member is in the form of a sheet and has a convex portion that bulges out in a convex shape when no external force is applied. The mounting portion comprises a housing portion for housing the portion to be mounted, and a fixing portion provided so as to surround the outer circumference other than the lower side of the housing portion. The elastic member is provided so as to surround the outer circumference other than the lower side of the convex portion, and has an outer edge portion in which a notch is formed. With the elastic member sandwiched between the board body and the mounting portion, the mounting portion is fixed to the board body by the fixing member, thereby fixing the portion to be fixed to the board body. The elastic member is a bed in which the convex portion is located within the housing portion, the outer edge portion is sandwiched between the board body portion and the fixed portion, and the fixing member passes through the notch in the outer edge portion.

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