Body support tool

Abstract

To provide a body support tool that can be adjusted asymmetrical according to a posture of a user.SOLUTION: A wheelchair 10 includes: a right-side support part 42 and a left-side support part 44 extending across a pair of horizontal frames 32, stretchable in a vertical direction, arranged side by side in a width direction of a body, and supporting a body; and tensile force adjustment parts 45 that are provided respectively in the right-side support part 42 and the left-side support part 44 and adjust respectively tensile force of the right-side support part 42 and the left-side support part 44.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a body support device. [Background technology]

[0002] Patent Document 1 discloses a wheelchair equipped with an adjustment means capable of adjusting the tension of a support that is spanned between a pair of left and right frames, thereby adjusting the tension of the seat and backrest. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-074255 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, it is preferable for a body support to be adjusted asymmetrically in accordance with the user's posture.

[0005] An object of the present invention is to provide a body support that can be adjusted asymmetrically in accordance with the user's posture. [Means for solving the problem]

[0006] The body support device of claim 1 comprises a first support part that is stretched between a pair of frames and extends in the vertical direction of the body, the first support parts being arranged side by side in the width direction of the body and supporting the body, and a tension adjustment part that is provided on each of the first support parts and adjusts the tension of the first support part.

[0007] In the body support device according to claim 1, the tension of each of the first support parts is adjusted independently by providing a tension adjustment part for adjusting the tension of the first support parts, so that the tension of each of the first support parts can be adjusted asymmetrically depending on the user's posture.

[0008] A body support device according to claim 2 is the body support device according to claim 1, in which the tension adjustment section is provided on the opposite side of the frame from the side of the first support section that supports the body.

[0009] In the body support device according to claim 2, the tension adjustment unit is provided on the opposite side of the frame from the side of the first support unit that supports the body, so that the tension adjustment unit is disposed at a position that does not contact the body when the first support unit supports the body. Therefore, the tension adjustment unit can be adjusted asymmetrically while the body is supported.

[0010] The body support device of claim 3 is the body support device of claim 1 or claim 2, further comprising a second support part that is hung across a pair of frames and extends in a direction intersecting the extension direction of the first support part, and at least a portion of the first support part is positioned rearward of the second support part.

[0011] In the body support device according to claim 3, at least a part of the first support part is disposed rearward of the second support part, so that when the tension of one of the first support parts is adjusted to be stronger, the one first support part side of the second support part is pushed forward by the one first support part. On the other hand, when the tension of the other first support part is not adjusted, the other first support part side of the second support part is not moved. Therefore, the center of deflection of the second support part is moved in a direction approaching the other first support part side.

[0012] Furthermore, when the tension of one of the first support parts is adjusted to be weaker, the one first support part side of the second support part is moved backward. On the other hand, when the tension of the other first support part is not adjusted, the other first support part side of the second support part is not moved. Therefore, the center of deflection of the second support part is moved in a direction approaching the one first support part side. As a result, it is possible to adjust asymmetrically left and right according to the user's posture.

[0013] The body support device of claim 4 is the body support device described in claim 3, wherein the first support part is positioned rearward of the part of the second support part that is most bent toward the rear, and is positioned in front of the other parts of the second support part.

[0014] In the body support device of claim 4, the first support part is positioned rearward of the most bent portion of the second support part, so that when the tension of the first support part is adjusted to be stronger, the most bent portion of the second support part is pushed forward.

[0015] Furthermore, because the first support part is positioned in front of the other parts of the second support part, when the tension of the first support part is adjusted to be stronger, the part of the first support part that is most bent rearward of the second support part is pushed forward, with the other parts of the second support part as a fulcrum.

[0016] Therefore, while the user is supported by the body support device, the user's posture can be easily adjusted.

[0017] The body support device according to claim 5 is the body support device according to any one of claims 1 to 4, further comprising an adjustment amount visualization section that visualizes the amount of adjustment made by the tension adjustment section.

[0018] The body support device according to claim 5 includes an adjustment amount visualization unit that visualizes the amount of adjustment made by the tension adjustment unit, and the user can adjust the tension according to the user's posture by looking at the adjustment amount visualization unit. Therefore, adjustment according to the user's posture can be easily performed. Effect of the Invention

[0019] As described above, the body support device according to the present invention can be adjusted asymmetrically in accordance with the user's posture. [Brief description of the drawings]

[0020] [Figure 1] 1 is a side view showing a schematic view of a wheelchair according to an embodiment; [Diagram 2] FIG. 2 is a front view showing the back support part according to the embodiment. [Diagram 3] 3 is a cross-sectional view showing the back support part according to the embodiment, showing the cross section AA of FIG. 2. [Figure 4] FIG. 3 is a cross-sectional view showing the wheelchair according to the embodiment, showing the cross section taken along line BB in FIG. 2. [Diagram 5] FIG. 11 is a cross-sectional view showing a back support part according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, a body support device according to an embodiment will be described with reference to the drawings. In the embodiment, an example will be described in which the body support device is a wheelchair 10. In each drawing, the arrow UP indicates the upper side in the up-down direction of the wheelchair 10, the arrow FR indicates the front side in the front-rear direction of the wheelchair 10, and the arrow RH indicates the right side in the left-right direction of the wheelchair 10.

[0022] [10 Wheelchair Configurations] As shown in FIG. 1, a wheelchair 10 as a body support device includes a seat portion 12 that supports the buttocks and thighs of user H, a foot support portion 14 that supports the feet of user H, an arm support portion 16 that supports the arms of user H, a grip portion 18 that a caregiver grasps when moving the wheelchair 10, front wheels 20, rear wheels 22, and a back support portion 30 that supports the back of user H.

[0023] [Configuration of back support part 30] As shown in FIG. 2, the back support section 30 includes a frame 31, a first support section 40, and a second support section 50. The frame 31 includes a first support section 40 and a second support section 50. As shown in FIG.

[0024] (Frame 31) The frame 31 is formed of a metal such as aluminum or steel, and has sufficient rigidity to support the body of the user H. The frame 31 is formed into a rectangular frame shape in a front view by a pair of upper and lower horizontal frames 32 and a pair of left and right vertical frames 34.

[0025] The horizontal frame 32 is formed in a cylindrical shape and extends in the left-right direction, while the vertical frame 34 is formed in a cylindrical shape and extends in the up-down direction.

[0026] (First support part 40) The first support portion 40 is formed in a belt shape from, for example, polyester, nylon, or the like, has flexibility for applying an appropriate reaction force to the user H, and supports the user H's body.

[0027] As shown in Fig. 2, the first support part 40 has a right support part 42 and a left support part 44. The right support part 42 is provided on the right side of the center part of the back support part 30 in the left-right direction. The left support part 44 is provided on the left side of the center part of the back support part 30 in the left-right direction. The right support part 42 and the left support part 44 are arranged side by side in the width direction of the body of the user H seated in the wheelchair 10. The right support part 42 and the left support part 44 are arranged in parallel. The right support part 42 and the left support part 44 have the same configuration.

[0028] 3, the right support part 42 and the left support part 44 extend in the vertical direction and are supported by being stretched across a pair of upper and lower horizontal frames 32. The right support part 42 and the left support part 44 are supported by being stretched across a pair of upper and lower horizontal frames 32.

[0029] The right side support part 42 and the left side support part 44 are disposed rearward of the second support part 50 that is bent rearward the most among the multiple second support parts 50. The right side support part 42 and the left side support part 44 are disposed forward of the second support parts 50 other than the second support part 50 that is bent rearward the most among the multiple second support parts 50. The right side support part 42 and the left side support part 44 are provided movably with respect to each second support part 50.

[0030] The right support part 42 is provided with a tension adjustment part 45 so as to connect both ends in the extension direction of the right support part 42. The left support part 44 is provided with a tension adjustment part 45 so as to connect both ends in the extension direction of the left support part 44. The tension adjustment part 45 is provided on the opposite side to the side of the first support part 40 that supports the body of the user H, across the frame 31.

[0031] The tension adjustment unit 45 is a member capable of adjusting and fixing the tension in the extension direction of the first support unit 40, and may be, for example, a buckle. Note that the tension adjustment unit 45 may be any member capable of adjusting and fixing the tension in the extension direction of the first support unit 40, and may be, for example, a chain block or a hook-and-loop fastener.

[0032] The tension adjustment unit 45 is provided with an adjustment amount visualization unit that visualizes the adjustment amount. The adjustment amount visualization unit can be a scale marked at predetermined distances from a predetermined reference point.

[0033] (Second support part 50) The second support part 50 is made of the same material as the first support part 40. The second support part 50 is formed in a belt shape from, for example, polyester, nylon, or the like, has flexibility that provides an appropriate reaction force to the user H, and supports the body of the user H.

[0034] 2, the second support parts 50 are arranged side by side at intervals in the up-down direction. Each second support part 50 extends in a left-right direction intersecting with the extension direction of the first support part 40, and is supported by being stretched across a pair of left and right vertical frames 34.

[0035] A tension adjustment section 52 is provided at both ends in the extension direction of each second support section 50. The tension adjustment section 52 is a member that adjusts the tension in the extension direction of the second support section 50 and can be fixed, and can be, for example, a hook and loop fastener.

[0036] The tension adjustment unit 52 is provided with an adjustment amount visualization unit that visualizes the adjustment amount. The adjustment amount visualization unit can be a scale marked at predetermined distances from a predetermined reference point.

[0037] [Wheelchair 10 movements] As shown in FIG. 4, when the tension adjustment portion 45 of the right support portion 42 is adjusted so that the tension of the right support portion 42 is increased, the right side of the second support portion 50 is pushed forward by the right support portion 42.

[0038] When the tension adjustment portion 45 of the right support portion 42 is adjusted so that the tension of the right support portion 42 is weakened, the right side of the second support portion 50 is moved rearward.

[0039] When tension adjustment portion 45 of left support portion 44 is adjusted so that the tension of left support portion 44 is increased, the left side of second support portion 50 is pushed forward by left support portion 44.

[0040] When tension adjustment portion 45 of left support portion 44 is adjusted so that the tension of left support portion 44 is weakened, the left side of second support portion 50 is moved rearward.

[0041] [Effect] The wheelchair 10 of the embodiment is equipped with a right side support part 42 and a left side support part 44 that are stretched between a pair of horizontal frames 32, extend in the vertical direction, and are arranged side by side in the width direction of the body to support the body, and tension adjustment parts 45 that are provided on each of the right side support part 42 and the left side support part 44 and adjust the tension of each of the right side support part 42 and the left side support part 44 (Figure 3).

[0042] The tension adjustment units 45 are provided on the right support part 42 and the left support part 44, respectively, and adjust the tension of each of the right support part 42 and the left support part 44, so that the tension of each of the right support part 42 and the left support part 44 can be adjusted independently. Therefore, the tension can be adjusted asymmetrically depending on the posture of the user H.

[0043] Furthermore, when the user H is supported by the wheelchair 10 for a long period of time, pressure may be concentrated on the body of the user H. Even in such a case, the tension adjustment unit 45 can change the pressure concentration area in the left-right direction. Therefore, the wheelchair 10 can reduce the physical burden on the user H.

[0044] In the wheelchair 10 according to the embodiment, the tension adjustment section 45 is provided on the opposite side of the frame 31 from the sides of the right support section 42 and the left support section 44 that support the body (see FIG. 3).

[0045] The tension adjustment unit 45 is provided on the opposite side of the frame 31 from the side of the right support unit 42 and the left support unit 44 that supports the body, so that the tension adjustment unit 45 is disposed at a position that does not contact the body when the body is supported by the right support unit 42 and the left support unit 44. Therefore, the tension adjustment unit 45 can be adjusted asymmetrically while the body is supported.

[0046] Furthermore, the tension adjustment unit 45 is disposed at a position where it does not come into contact with the body when the body is supported by the right support unit 42 and the left support unit 44. Therefore, the wheelchair 10 does not give the user H a foreign body sensation.

[0047] The wheelchair 10 of the embodiment is provided with a second support part 50 that is suspended across a pair of vertical frames 34 and extends in a left-right direction intersecting the extension direction of the first support part 40, and at least a portion of the first support part 40 is positioned rearward of the second support part 50 (see Figure 3).

[0048] At least a portion of the first support part 40 is disposed rearward of the second support part 50, so that when the tension of the right support part 42 is adjusted to be stronger, the right support part 42 side of the second support part 50 is pushed forward by the right support part 42. On the other hand, when the tension of the left support part 44 is not adjusted, the left support part 44 side of the second support part 50 is not moved. Therefore, the center of deflection of the second support part 50 is moved in a direction approaching the left support part 44 side.

[0049] Furthermore, when the tension of the right support part 42 is adjusted to be weaker, the right support part 42 side of the second support part 50 is moved rearward. On the other hand, when the tension of the left support part 44 is not adjusted, the left support part 44 side of the second support part 50 is not moved. Therefore, the center of deflection of the second support part 50 is moved in a direction approaching the right support part 42 side. As a result, it is possible to perform an asymmetric adjustment in accordance with the posture of the user H.

[0050] In the wheelchair 10 of the embodiment, the first support part 40 is positioned behind the most rearwardly bent part of the second support part 50, and in front of the other parts of the second support part 50 (see Figure 3).

[0051] Since the first support part 40 is positioned behind the part of the second support part 50 that is most bent toward the rear, when the tension of the first support part 40 is adjusted to be stronger, the part of the second support part 50 that is most bent toward the rear is pushed forward.

[0052] Moreover, since the first support part 40 is disposed in front of the other parts of the second support part 50, when the tension of the first support part 40 is adjusted to be stronger, the part of the first support part 40 that is most bent rearward of the second support part 50 is pushed forward with the other parts of the second support part 50 as a fulcrum. Therefore, when the user H is supported by the wheelchair 10, the posture of the user H can be easily adjusted.

[0053] The wheelchair 10 according to the embodiment is provided with an adjustment amount visualization unit that visualizes the amount of adjustment made by the tension adjustment unit 45.

[0054] By providing an adjustment amount visualization unit that visualizes the amount of adjustment made by the tension adjustment unit 45, the user H can make adjustments according to the posture of the user H by looking at the adjustment amount visualization unit. Therefore, adjustments according to the posture of the user H can be easily made.

[0055] The body support device according to the embodiment has been described above based on the embodiment. However, the specific configuration is not limited to this embodiment, and design changes and the like are permitted as long as they do not deviate from the gist of the invention according to each claim in the scope of the claims.

[0056] In the embodiment, an example has been shown in which the first support portion 40 is disposed rearward of the second support portion 50 that is bent rearward the most, and disposed in front of the second support portions 50 other than the second support portion 50 that is bent rearward the most. However, as shown in FIG. 5, the first support portion 40 may be disposed rearward of all the second support portions 50. Furthermore, at least a portion of the first support portion 40 may be disposed rearward of the second support portions 50.

[0057] In the embodiment, the right support portion 42 and the left support portion 44 are provided parallel to the vertical direction. However, the right support portion 42 and the left support portion 44 may be provided inclined to the vertical direction or may be provided so as to cross each other.

[0058] In the embodiment, an example has been shown in which two first support portions 40 are provided, the right support portion 42 and the left support portion 44. However, three or more first support portions 40 may be provided.

[0059] In the embodiment, an example has been shown in which the tension adjustment units 45 of the right support unit 42 and the left support unit 44 are manually adjustable. However, the tension adjustment units 45 of the right support unit 42 and the left support unit 44 may be electrically adjustable.

[0060] In the embodiment, the second support portion 50 is in the form of a belt. However, the second support portion 50 may be in the form of a sheet.

[0061] In the embodiment, an example has been shown in which the back support section 30 includes the second support section 50. However, the back support section 30 does not necessarily need to include the second support section 50.

[0062] In the embodiment, an example has been shown in which the right support portion 42 and the left support portion 44 are provided in the back support portion 30. However, the right support portion 42 and the left support portion 44 may be provided in the seat portion 12.

[0063] In the embodiment, an example has been shown in which the body support device is a wheelchair 10. However, the body support device may be anything that supports the body, such as a vehicle seat, a sofa, or a chair. [Explanation of symbols]

[0064] 10. Wheelchair (an example of a personal support device) 31 Frame 32 Horizontal frame (example of a frame) 34 Vertical frame (example of a frame) 40 1st support part 42 Right side support part (an example of the first support part) 44 Left side support part (an example of the first support part) 50 Second support part

Claims

1. A first support portion that is stretched between the pair of frames and extends in the vertical direction of the body, and is arranged side by side in the width direction of the body to support the body; a tension adjusting section provided on each of the first support sections and adjusting a tension of the first support sections; A body support device comprising:

2. The tension adjustment unit is provided on the opposite side of the frame from the side of the first support unit that supports the body.

2. The body support device of claim 1.

3. A second support portion is provided between the pair of frames and extends in a direction intersecting with the extension direction of the first support portion, At least a portion of the first support portion is disposed rearward of the second support portion.

2. The body support device of claim 1.

4. The first support portion is disposed rearward of a portion of the second support portion that is most bent rearward, and disposed forward of the other portion of the second support portion.

4. The body support device of claim 3.

5. An adjustment amount visualization unit is provided for visualizing the amount of adjustment made by the tension adjustment unit.

2. The body support device of claim 1.

Images