Nursing device

A rotatable knee support mechanism in assist devices addresses the space constraints of existing designs by retracting when not in use, ensuring space for wheelchair maneuvering and caregiver support.

JP2025177846APending Publication Date: 2025-12-05TANAKA KOGYO CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
JP2024084973
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-12-05

AI Technical Summary

Technical Problem

Existing assist devices, such as handrail devices and toilet transfer aids, narrow the space available for wheelchair turning and caregiver support due to their design, which includes knee support portions that occupy valuable space when not in use.

Method used

A rotatable knee support mechanism that can switch between a supportable state and a stored state, allowing the knee support portion to be retracted when not in use, and is attachable to both floor and wall installations without altering the base structure.

Benefits of technology

Ensures a large required space around the assistance device by retracting the knee support when not in use, facilitating wheelchair turning and caregiver support without interfering with user movement.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025177846000001_ABST
    Figure 2025177846000001_ABST
Patent Text Reader

Abstract

To widely secure a required space in the periphery of a nursing device when a knee support part is not used.SOLUTION: A nursing device 10 comprises: a supporter 31 (first base part) arranged on a floor Y or a wall K; and a support part 50 including a rotation part 48 arranged in a fixing part 40 (second base part) arranged in the supporter 31, capable of supporting a knee part SB (a part or a whole of an area from a kneecap to an upper part of a shin) of a user S from a lower side or a side, rotatable within a predetermined angle range with respect to the fixing part 40, exchangeable between a supportable state and a storage state to be stored on a deep side from the supportable state, and to be rotatably supported by the fixing part 40, an arm part 44 extending from the rotation part 48, a frame 52 fixed to the arm part 44 and a pad part 54 for covering the frame 52.SELECTED DRAWING: Figure 5
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to an assist device. [Background technology]

[0002] For example, a handrail device has been disclosed that has a lower cushion body extending approximately horizontally in the middle section of a frame body fixed upright on a base, or in both the intermediate section and the upper end section (see Patent Document 1).

[0003] Also disclosed is a toilet transfer aid having knee and shin pads that stabilize the user's posture when the user stands up from a sitting position or in a standing position (see Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-97900 A [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-22155 Summary of the Invention [Problem to be solved by the invention]

[0005] In the handrail device described in Patent Document 1, the person being assisted can lean their thighs against the cushion body and place both hands on the cushion body provided at the upper end, thereby maintaining a safe and accurate standing posture with almost no physical strain.

[0006] Furthermore, the toilet transfer and standing position assisting device disclosed in Patent Document 2 allows the person being assisted to transfer between the wheelchair and the toilet while placing their knees against the knee pads.

[0007] However, the lower cushion body of Patent Document 1 and the knee pad portion of Patent Document 2 may narrow the space available for turning the wheelchair or narrow the space available for a caregiver to support a person being assisted.

[0008] An object of the present invention is to ensure a large required space around the assistance device when the knee support portion is not in use. [Means for solving the problem]

[0009] The assistance device of the first aspect has a first base that is installed on the floor or a wall, and a second base that is installed on the first base and is capable of supporting part or all of the user's body from the kneecap to the upper shin from below or laterally, and is rotatable within a predetermined angle range relative to the second base and switchable between a supportable state and a stored state in which it is stored at the back from the supportable state, and has a rotating part that is rotatably supported by the second base, an arm part that extends from the rotating part, a frame fixed to the arm part, and a support part that has a pad part that covers the frame.

[0010] In this assistance device, the support section in the supportable state supports the user's knees from below or from the side, preventing the knees from bending and supporting the knees from the side. The support section is rotatable within a predetermined angle range relative to the second base section, and can be switched between the supportable state and the stored state. Therefore, by storing the support section when not in use, it is possible to secure a large amount of necessary space around the assistance device, such as space for turning the wheelchair and space for the caregiver to support the person being assisted.

[0011] In a second aspect, in the assistance device according to the first aspect, the rotating part or the second base part is provided with an upper limit stopper that determines the upper limit of the rotation range corresponding to the stored state of the support part, and the rotating part or the second base part is provided with a lower limit stopper that determines the lower limit of the rotation range corresponding to the supportable state of the support part.

[0012] In this assistance device, the upper and lower limits of the rotation range of the support part are determined by the upper and lower limit stoppers, and it is possible to switch between the stored state and the supportable state.

[0013] In a third aspect, in the assistance device of the second aspect, a convex portion is provided on one of the rotating portion and the second base portion, and a concave, arc-shaped guide portion is provided on the other of the rotating portion and the second base portion, and moves relatively with the convex portion inserted as the support portion rotates, one end of the guide portion is the upper limit stopper, the other end of the guide portion is the lower limit stopper, and the wall of the guide portion is continuous between the one end and the other end.

[0014] In this assistance device, the protrusion is provided on either the rotating part or the second base part, and moves relative to the arc-shaped guide part while inserted into the guide part as the support part rotates. One end of the guide part is an upper limit stopper, and the other end is a lower limit stopper, so that the protrusion moves within the range of the guide part to switch between the stored state and the supportable state of the support part. In addition, the wall of the guide part is continuous between the one end that is the upper limit stopper and the other end that is the lower limit stopper, which increases the strength of the upper limit stopper and the lower limit stopper.

[0015] In a fourth aspect, in the assistance device according to the second or third aspect, a plunger is provided that acts at the position of the upper limit stopper when the support part is in the stored state and can maintain the support part in the stored state.

[0016] In this assistance device, when the support part is in the stored state, the plunger acts at the position of the upper limit stopper, so that the support part can be stably held in the stored state.

[0017] In a fifth aspect, in the assistance device according to the first aspect, the second base can be attached to a support pole erected above the floor by sandwiching the support pole between the second base and a plate, and can also be attached to a mounting portion that protrudes from the wall.

[0018] In this assistance device, the second base can be attached to either a support pole installed on the floor or a mounting part installed on a wall, so the installation location of the assistance device can be selected without changing the structure of the second base. [Effects of the Invention]

[0019] According to the present invention, when the knee support portion is not in use, it is possible to ensure a large required space around the assistance device. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view showing an assistance device according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing the assistance device according to the first embodiment in a state where the support section is stored. [Figure 3] 1 is a plan view showing a toilet in which an assistance device according to a first embodiment is installed. [Figure 4] 1 is a side view showing a state in which the front part of the upper body of a user is leaning against an upper body support part in the care device according to the first embodiment. FIG. [Figure 5] 5 is a side view showing a state in which, when the knee bends in the state of FIG. 4, part or all of the area from the kneecap to the upper shin is supported from below by the support part. FIG. [Figure 6] 5 is a side view showing a state in which the user bends his / her knees to put on or take off clothes from the state shown in FIG. 4. FIG. [Figure 7] FIG. 10 is an exploded perspective view showing the attachment structure of the second base portion and the support column in the support portion. [Figure 8] 10 is a cross-sectional view showing the attachment structure of the arm portion, the rotating portion, and the second base portion in the support portion. FIG. [Figure 9] FIG. 2 is an exploded perspective view showing a second base portion, a plate, and a rotating portion. [Figure 10] 10 is a partially cutaway side view showing the positional relationship between the protrusion and the guide portion when the support portion is in a supportable state. FIG. [Figure 11] 10 is a partially cutaway side view showing the positional relationship between the protrusion and the guide portion when the support portion is in a stored state. FIG. [Figure 12] FIG. 10 is a perspective view showing a support section in a supportable state in an assistance device according to a second embodiment. [Figure 13]FIG. 10 is a perspective view showing a support section in a stored state in an assistance device according to a second embodiment. [Figure 14] FIG. 10 is an exploded view showing the attachment structure of the support portion and the attachment portion that is installed so as to protrude from the wall in the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components indicated by the same reference numerals in each drawing are the same or similar components. Note that duplicated descriptions and reference numerals may be omitted in the embodiments described below. Furthermore, all drawings used in the following description are schematic, and the dimensional relationships and ratios of elements shown in the drawings do not necessarily correspond to the actual ones. Furthermore, the dimensional relationships and ratios of elements between multiple drawings do not necessarily correspond to the actual ones.

[0022] [First embodiment] 1 to 6, the assistance device 10 according to this embodiment has a support pole device 30 as an example of a first base, and a support section 50. The assistance device 10 also has, for example, an upper body support section 20 that enables a user S to maintain a standing posture by himself / herself. In FIG. 3, the assistance device 10 is installed near a sit-down toilet 16 in a toilet T used by, for example, a wheelchair user. Around the sit-down toilet 16, for example, armrest devices 15 are provided. Taking into consideration use with a wheelchair (not shown), the assistance device 10 is installed so that, for example, the upper body support section 20 and the support section 50 face in a direction midway between the front-to-rear direction F of the sit-down toilet 16 and the direction E in which the wheelchair moves in and out.

[0023] The support pole device 30 is installed on the floor Y of the toilet T. Specifically, the support pole device 30 is mainly composed of, for example, a base plate 32 installed on the floor Y, and a hollow pipe support pole 31 erected on the base plate 32. The base plate 32 is fixed to the floor Y, so that the support pole device 30 is erected vertically upward from the floor Y. A rib-shaped reinforcing member 33 is attached to the lower end of the support pole 31 and the base plate 32 to prevent the support pole 31 from tilting.

[0024] The upper body support section 20 is provided on the support column 31 and is a portion against which the front portion SA of the upper body of a user S in a standing position can lean. The front portion SA of the upper body is mainly the chest. In addition to the chest, the abdomen and head of the user S may also be able to lean against the upper body support section 20. The upper body support section 20 may be a portion that supports the standing position of the user S. As an example, the upper body support section 20 has a pair of left and right vertical grip bars 21 that extend vertically, and each vertical grip bar 21 is curved so that it convex toward the front. The distance between the vertical grip bars 21 is set to be smaller than the shoulder width of the user S. The user S can lean the front portion SA of the upper body against the pair of vertical grip bars 21. The "front side" means the side of the user S who leans on the upper body support part 20 with the front part SA of the upper body (the front side as seen from the user S).

[0025] The lower ends of the pair of vertical grip bars 21 are connected to each other by a lower connector 22 extending substantially horizontally. In the illustrated example, the pair of vertical grip bars 21 and the lower connector 22 are integrally configured, but the lower connector 22 may be configured separately from the pair of vertical grip bars 21. The upper ends of the pair of vertical grip bars 21 are connected to each other by an upper connector 23. The upper connector 23 has a pair of first wall portions 23A extending rearward from the pair of vertical grip bars 21, and a second wall portion 23B connecting the rear ends of the pair of first wall portions 23A. The second wall portion 23B is located rearward of the pair of vertical grip bars 21 and is fixed to a base 26 provided at the upper end of the support pole 31. A support portion (not shown) is provided at the top of the support pole 31, and the base 26 is fixed to this support portion. A pad portion 24 is provided on the base 26. The pad portion 24 is located between the pair of vertical grip bars 21, between the upper connecting portion 23 and the lower connecting portion 22. Note that the "rear side" means the front side of the user S who is leaning on the upper body support portion 20 with the front portion SA of his or her upper body.

[0026] The fixed portion 40, which is an example of a second base portion, is installed on the support column 31. As shown in FIGS. 7 to 9 , the fixed portion 40 is attached at a predetermined height, for example, below the attachment position of the upper body support portion 20 on the support column 31, with the support column 31 sandwiched between the fixed portion 40 and a plate 46 in the radial direction. The fixed portion 40 has a recess 40A that is, for example, substantially U-shaped in a plan view and can receive the support column 31. In FIG. 7 , the recess 40A opens on the side of the support section 50 opposite to the pad portion 54 side described below. Four screw holes 40B, for example, are formed in the end face on the opening side of the recess 40A. The plate 46 is fastened and fixed to the screw holes 40B of the fixed portion 40 using screws 62 and washers 64 and 66, respectively. As a result, the support column 31 is sandwiched between the fixed portion 40 and the plate 46, and the fixed portion 40 is attached to the support column 31.

[0027] The washer 64 may be a spring washer. Anti-slip members 34 such as rubber sheets may be provided between the fixed part 40 and the support 31, and between the plate 46 and the support 31. The anti-slip members 34 also function as protective materials for the support 31. Furthermore, the mounting height of the fixed part 40 on the support 31 may be changeable.

[0028] The support part 50 is rotatable within a predetermined angle range relative to the fixed part 40, and is switchable between a supportable state and a stored state in which the supportable state is stored to the rear side. The predetermined angle range is the range required to switch the support part 50 between the supportable state and the stored state.

[0029] The support part 50 is provided on the fixed part 40, and can support part or all of the area from the kneecap to the upper shin (hereinafter referred to as "knee part SB") of the user S from below when, for example, the knee of the user S leaning against the upper body support part 20 bends. The support part 50 is disposed below the upper body support part 20, for example.

[0030] The support part 50 has a rotating part 48 that is rotatably supported by the fixed part 40, an arm part 44 that extends from the rotating part 48, a frame 52 that is fixed to the arm part 44, and a pad part 54 that covers the frame 52.

[0031] A cylindrical portion 40C, for example, is integrally formed on each side of the fixed portion 40. A through hole 40D is formed in the center of the cylindrical portion 40C. A bearing 68, made of, for example, low-friction resin, is disposed in the through hole 40D. The bearing 68 is formed in a cylindrical shape with a flange portion at one end in the axial direction. Two bearings 68 are inserted into the through hole 40D from one side and the other. The length of the bearings 68 excluding the flange portions is set to be slightly shorter than the length of the through hole 40D. Furthermore, a cylindrical spacer 69 is provided inside the bearing 68.

[0032] The rotating portion 48 is formed, for example, in a disk shape, and is rotatably attached to the fixed portion 40 together with the arm portion 44 by a bolt 70 and a nut 72. A pair of rotating portions 48 are provided on both sides of the fixed portion 40. The outer diameter of the rotating portion 48 is, for example, equal to the outer diameter of the cylindrical portion 40C. The arm portion 44 is, for example, a pipe with an oval cross section, and has an outer wall 44A opposite the fixed portion 40 side and an inner wall 44B on the fixed portion 40 side. The end of the arm portion 44 opposite the frame 52 side is closed with a cap 74.

[0033] The bolt 70 is inserted into the arm portion 44, for example, through a working hole 44C formed in the outer wall 44A of the arm portion 44, passes through the inner wall 44B and the rotating portion 48, and is inserted into the spacer 69. After the arm portion 44 is assembled to the fixed portion 40, a cap 56 is fitted into the working hole 44C. The spacer 69 is interposed between the inner wall 44B and the nut 72. This prevents the distance between the bolt 70 and the nut 72 from becoming shorter than the length of the spacer 69 when the bolt 70 and the nut 72 are fastened together. This also prevents the rotating portion 48 and the arm portion 44 from being fixed to the fixed portion 40 by the fastening force of the screws and becoming unable to rotate.

[0034] A nut 72 is threaded onto the tip end of the bolt 70. A washer 76, for example, is provided between the head of the bolt 70 and the inner wall 44B. In addition, a washer 78 and a disc spring 79, for example, are provided between the nut 72 and the flange of the bearing 68.

[0035] An upper limit stopper 82U that determines the upper limit of the rotation range corresponding to the storage state of the support unit 50 may be provided on the rotating unit 48 or the fixed unit 40, for example, on the inside of the cylindrical portion 40C of the fixed unit 40. Furthermore, a lower limit stopper 82D that determines the lower limit of the rotation range corresponding to the supportable state of the support unit 50 may be provided on the rotating unit 48 or the fixed unit 40, for example, on the cylindrical portion 40C of the rotating unit 48B.

[0036] One of the rotating portion 48 and the fixed portion 40, for example, the rotating portion 48, may be provided with a head 84A of a bolt 84, which is an example of a protrusion. The head 84A of the bolt 84 protrudes toward the fixed portion 40 of the rotating portion 48. The bolt 80 penetrates the rotating portion 48 and the inner wall 44B of the arm portion 44 and is inserted into the arm portion 44. A washer 86 and a nut 88 are attached to the threaded portion of the bolt 84 inside the arm portion 44. The bolt 84 is fixed to the rotating portion 48 and the arm portion 44 by fastening the threaded portion of the bolt 84 to the nut 88. In this embodiment, two bolts 84 are used per rotating portion 48. The two bolts 84 are arranged point-symmetrically with respect to the center of the bolt 70, for example. The two bolts 84 are also arranged parallel to the longitudinal direction of the arm portion 44, for example.

[0037] The other of the rotating part 48 and the fixed part 40, for example the fixed part 40, may be provided with a concave, arc-shaped guide part 82 that moves relatively with the head 80A of the bolt 80 inserted as the support part 50 rotates. A pair of these guide parts 82 is provided, for example, on the inside of the cylindrical part 40C on each side of the fixed part 40. The pair of guide parts 82 is arranged point-symmetrically with respect to the center of the bolt 70, for example. One end of the guide part 82 is an upper limit stopper 82U, and the other end of the guide part 82 is a lower limit stopper 82D.

[0038] The wall of the guide portion 82 may be continuous between one end and the other end (in other words, between the upper limit stopper 82U and the lower limit stopper 82D). Specifically, the guide portion 82 has a width in the radial direction of the cylindrical portion 40C that is slightly larger than the head 84A of the bolt 84. The guide portion 82 has a radially inner wall and a radially outer wall. These walls extend to the upper limit stopper 82U and the lower limit stopper 82D. The radially outer wall is part of the wall of the cylindrical portion 40C. In this way, the wall of the guide portion 82, including the upper limit stopper 82U and the lower limit stopper 82D, may be continuous in an endless manner.

[0039] A plunger 90 may be provided that acts at the position of the upper limit stopper 82U to maintain the support part 50 in the stored state when the support part 50 is in the stored state. This plunger 90 is, for example, a ball plunger having a spring-loaded ball, and is attached to the guide part 82 at a position corresponding to the upper limit stopper 82U. The head 84A of the bolt 84 has, for example, a hexagonal hole. When the support part 50 is in the stored state, that is, when the head 84A is at the position of the upper limit stopper 82U, a portion of the ball of the plunger 90 enters and gets caught in the hexagonal hole. This maintains the stored state of the support part 50. Furthermore, the plunger 90 provides a click when the support part 50 enters or leaves the stored state.

[0040] In this embodiment, the plunger 90 is provided on one of the pair of guide portions 82 in each of the cylindrical portions 40C on both sides. That is, two plungers 90 are provided. However, as long as the support portion 50 can be maintained in the stored state, only one plunger 90 may be provided.

[0041] 7, 10, and 11, the frame 52 is arranged substantially horizontally, for example, by connecting the front ends of the pair of arm sections 44 together. The frame 52 extends in the left-right direction of the user S leaning on the upper body support section 20 with the front portion SA of the upper body (FIGS. 4 and 5). Both ends of the frame 52 protrude further to the left and right than the front ends of the pair of arm sections 44. The length of the frame 52 is set to be wider than the distance between the knees of the user S in a standing position leaning on the upper body support section 20, so that the knees can be supported even if the position of the legs fluctuates slightly left and right. The frame 52 and the arm sections 44 are connected by screws 92, for example.

[0042] The pad portion 54 is provided so as to cover both ends of the frame 52 in the longitudinal direction, for example, from the top to the front side and further down. The pad portion 54 has, for example, urethane foam and a surface skin. The outer shape of the pad portion 54 is formed, for example, with an arc-shaped cross section. Note that the range of the arc-shaped cross section of the pad portion 54 is not limited to the example shown in the figure. It is sufficient that at least the area of ​​the pad portion 54 that comes into contact with the knee SB of the user S with bent knees has an arc-shaped cross section.

[0043] In the illustrated example, the state in which the pair of arms 44 are rotated upward to flip up the support unit 50 is the stored state of the support unit 50 (FIGS. 2 and 11). On the other hand, the state in which the pair of arms 44 are rotated downward from the stored state to become approximately horizontal is the supportable state of the support unit 50 (FIGS. 1, 7, and 10). In the supportable state, the support unit 50 can support the knee SB of a user S whose knee has been bent.

[0044] 5, when the knees of the user S in a standing position leaning against the upper body support part 20 bend, the support part 50 in the supportable state supports the knee part SB from below, thereby preventing the knee from bending. The knee joint angle θ when the support part 50 supports the knee part SB is preferably 10 degrees or more, and more preferably 20 degrees or more. The knee joint angle θ when the support part 50 supports the knee part SB is preferably 60 degrees or less, and more preferably 50 degrees or less.

[0045] In the supportable state of the support unit 50, the frontmost portion of the support unit 50, i.e., the frontmost portion of the pad unit 54, may be located closer to the front than the frontmost portion of the upper body support unit 20, i.e., the frontmost portion of the vertical grip bar 21. Furthermore, in the supportable state, the support unit 50 may be formed so as not to come into contact with the knee SB of the user S when the knee of the user S leaning against the upper body support unit 20 is extended. In other words, the frontmost portion of the support unit 50 may be located below the kneecap and further back than the upper shin when the knee of the user S leaning against the upper body support unit 20 is extended (FIG. 4).

[0046] Furthermore, the support part 50 may be formed so as not to come into contact with the knee part SB of the user S when the user S bends his / her knee in the supportable state. As shown in Fig. 6, even when the user S bends his / her knee to put on or take off clothes for the lower body, the knee part SB of the user S does not come into contact with the support part 50. Therefore, the support part 50 is unlikely to interfere with putting on or taking off clothes.

[0047] Specifically, when support unit 50 is in a supportable state, the distance A in the front-to-rear direction between the frontmost part of support unit 50 and the frontmost part of upper body support unit 20 is, for example, approximately 20 mm. Furthermore, the height H from floor Y to the uppermost position of support unit 50 is approximately 400 mm. Although the knee height varies depending on the physique of user S, with these dimensions, it is possible for support unit 50 to comfortably support the knees of user S who is, for example, 140 to 180 cm tall.

[0048] (action) This embodiment is configured as described above, and its operation will be described below. When a user S transfers between a wheelchair and a sit-down toilet 16, the user S temporarily assumes a standing position to put on or take off clothing from the lower half of the body. In Figure 4, in this embodiment, the front portion SA of the upper body of the user S in a standing position can lean against the upper body support part 20. When the knees of the user S leaning against the upper body support part 20 are extended, the knee portions SB of the user S do not come into contact with the support part 50 in a supportable state, so movement of the user S's legs and changes in direction are not hindered.

[0049] 5, when the knees of a user S in a standing position leaning against the upper body support part 20 bend, the support part 50 in the supportable state supports the knee part SB from below, thereby preventing the knees from bending. The support part 50 is rotatable within a predetermined angle range relative to the fixed part 40, and can be switched between the supportable state and the stored state. Therefore, by putting the support part 50 in the stored state when not in use, it is possible to ensure a large amount of necessary space around the assistance device, such as space for turning the wheelchair and space for the caregiver to support the person being assisted.

[0050] 3, a toilet T used by a wheelchair user requires space for turning the wheelchair, but with the assistance device 10 according to this embodiment, the support part 50 can be retracted from the supporting state to the storable state, making it easy to ensure space for turning the wheelchair even in a limited space such as the toilet T. Furthermore, in an assistance device that can assist the user S in maintaining an upright posture, unintentional bending of the knees can be prevented without interfering with the movement or change of direction of the user S's legs.

[0051] To further explain the operation of the support portion 50, in this embodiment, the upper limit stopper 82U and the lower limit stopper 82D define the upper and lower limits of the rotation range of the support portion 50, allowing it to switch between a stored state and a supportable state.

[0052] 10 and 11, head 84A of bolt 84 is provided on one of rotating portion 48 and fixed portion 40, and moves relative to arc-shaped guide portion 82 while inserted into guide portion 82 as support portion 50 rotates. One end of guide portion 82 is upper limit stopper 82U, and the other end is lower limit stopper 82D, so that head 84A of bolt 84 moves within the range of guide portion 82, thereby switching support portion 50 between a retracted state and a supportable state. Furthermore, because the wall of guide portion 82 is continuous between one end which is upper limit stopper 82U and the other end which is lower limit stopper 82D, the strength of upper limit stopper 82U and lower limit stopper 82D can be increased.

[0053] When the support part 50 is in the stored state, the plunger 90 (FIG. 9) acts at the position of the upper limit stopper 82U, so that the support part 50 can be stably held in the stored state.

[0054] 4 and 5, the frontmost portion of the support unit 50 is located closer to the user than the frontmost portion of the upper body support unit 20. Therefore, even if the knees of the user S in a standing position leaning against the upper body support unit 20 begin to bend, the progression of the knee bending can be suppressed in the early stages of the knee bending. By appropriately setting the position of the support unit 50, the support unit 50 can support the knees SB in the same way even if the height of the knees SB varies depending on the physique of the user S. By making the upper and front surfaces of the support unit 50 curved, the knees SB can be supported in the same way even if the direction in which the knees SB abut against the support unit 50 changes slightly.

[0055] As described above, according to this embodiment, the assistance device capable of assisting the user S in maintaining a standing posture can prevent unintentional bending of the knees without interfering with the movement or change of direction of the legs of the user S. Furthermore, when the knee support section 50 is not in use, a large amount of space can be secured around the assistance device.

[0056] [Second embodiment] 12 to 14, in this embodiment, both the upper body support unit 20 and the support unit 50 are attached to a wall K. The base 26 of the upper body support unit 20 is fixed to a wall-mounted bracket 100, which serves as an example of a first base and is provided on the wall K. In addition, the fixing unit 40 of the support unit 50 is also attached to an attachment unit 102 that protrudes from the wall K.

[0057] As shown in FIG. 14, the mounting portion 102 is provided at the tip of an arm 104 that is fixed to a wall K (FIG. 12). The arm 104 is fixed to the wall K by a plate-shaped base 108. The tip of the arm 104 is bent at an angle of 45° when viewed from above, for example, and the plate-shaped mounting portion 102 is provided at the tip. By bending the tip of the arm 104, the angle between the support part 50 and the wall K when viewed from above can be set to, for example, 45°.

[0058] The mounting portion 102 is configured in the same manner as the plate 46 (FIG. 9) in the first embodiment. The recess 40A of the fixing portion 40 is filled with, for example, a semicircular cover 106. Two covers 106 are provided, for example, above and below the recess 40A. Note that a semicylindrical member may be used instead of the cover 106. The mounting portion 102 and the fixing portion 40 are fastened and fixed with screws 62, as in the first embodiment.

[0059] Similar to the first embodiment, this support section 50 can also be switched between a supportable state (FIG. 12) and a retracted state (FIG. 13).

[0060] In this way, the fixing part 40 of the assistance apparatus 10 can be attached not only to the support 31 installed on the floor Y as in the first embodiment, but also to the mounting part 102 installed on the wall K as in the second embodiment. Therefore, the installation location of the assistance apparatus 10 can be selected without changing the structure of the fixing part 40.

[0061] Other parts are the same as those in the first embodiment, so the same parts are given the same reference numerals in the drawings and the explanations thereof will be omitted.

[0062] [Other embodiments] The above describes one example of an embodiment of the present invention, but the embodiment of the present invention is not limited to the above, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0063] The upper body support section 20 is not limited to the above-described embodiment, and may be any type that allows the front portion SA of the upper body of the user S in a standing position to rest against it.

[0064] Although the head 84A of the bolt 84 has been given as an example of a convex portion, the convex portion is not limited to this. Although the convex portion is provided on the rotating portion 48 and the guide portion 82 is provided on the fixed portion 40 in the above embodiment, the convex portion may be provided on the fixed portion 40 and the guide portion 82 may be provided on the rotating portion.

[0065] For example, when the user S is standing, the support unit 50 may support the knee portion SB from below or from the side with the knee portion SB in contact with the pad portion 54. Alternatively, when the user S stands up from a seated position in a wheelchair or the like, the support unit 50 may support the knee portion SB from the side with the knee portion SB in contact with the pad portion 54. In other words, the support unit 50 may support the knee portion SB from below or from the side with no knee bending occurring. [Explanation of symbols]

[0066] 10 Assistive Devices 30 Prop device (1st base) 31 Post 40 Fixed part (second base) 44 Arm section 46 Plates 48 Rotating part 50 Support Department 52 frames 54 Pad section 82 Information Department 82D Lower limit stopper 82U Upper limit stopper 84A Head (convex part) 90 Plunger 102 Mounting part K wall SB Knee (part or all of the area from the kneecap to the upper shin) Y Floor

Claims

1. a first base portion that is installed on a floor or a wall; a support section provided on a second base section installed on the first base section, capable of supporting a part or all of the user's body from the kneecap to the upper shin from below or laterally, rotatable within a predetermined angle range relative to the second base section, and switchable between a supportable state and a stored state stored in the rear side from the supportable state, the support section having a rotating section rotatably supported by the second base section, an arm section extending from the rotating section, a frame fixed to the arm section, and a pad section covering the frame; An assistance device having:

2. 2. The assistance device of claim 1, wherein the rotating unit or the second base is provided with an upper limit stopper that determines the upper limit of the rotation range corresponding to the stored state of the support unit, and the rotating unit or the second base is provided with a lower limit stopper that determines the lower limit of the rotation range corresponding to the supportable state of the support unit.

3. a convex portion provided on one of the rotating portion and the second base portion, and a concave and arc-shaped guide portion provided on the other of the rotating portion and the second base portion, into which the convex portion is inserted and which moves relatively as the support portion rotates; One end of the guide portion serves as the upper limit stopper, and the other end of the guide portion serves as the lower limit stopper, The care device according to claim 2 , wherein the wall of the guide portion is continuous between the one end and the other end.

4. 4. The assist device according to claim 2, further comprising a plunger that acts at the position of the upper limit stopper when the support section is in the stored state to hold the support section in the stored state.

5. 2. The assistance device according to claim 1, wherein the second base can be attached to a support pole erected above the floor by sandwiching the support pole between the second base and a plate, and can also be attached to a mounting portion protruding from the wall.

Citation Information

Patent Citations

  • Transfer aid for toilet

    JP2016022155A

  • Handrail device

    JP2019097900A