JP3875579B2 - Arm movement support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for rehabilitation exercise that supports the functional impairment of a care recipient who has a motor dysfunction in the arm part of the body and alleviates the obstacles of daily life, and also helps the recovery of the function through the daily rehabilitation exercise. .
[0002]
Japanese Patent Laid-Open No. 9-31547, Japanese Patent Laid-Open No. 2000-51289, etc. have proposed devices that support leg and lower back dysfunctions for care recipients with motor dysfunction due to paralysis of the body. An effective rehabilitation technique for supporting motor dysfunction has not been proposed yet.
[0003]
[Problems to be solved by the invention]
In view of the above, the present invention intends to provide an arm motion support device capable of supporting exercise over a wide range in response to a motor function disorder of the arm.
[0004]
[Means for Solving the Problems]
The arm movement support device according to claim 1 for achieving the above-mentioned object comprises an arm holding part, an arm up / down action part, and an arm front / rear action part.
The arm holding unit comprises a Udeno置座for mounting the arm, and a support seat for swingably supported via a horizontal axis perpendicular to Udeno置座in its longitudinal direction, the mounting arms between both seat It consists of a damper that adjusts and holds the vertical swing load on the seat,
The arm up-and-down operation unit includes a first bearing unit that joins the support seat with a first vertical shaft that is pivotably supported at one end, and a second bearing unit that pivotally supports a second vertical shaft at the other end. A parallel link that joins both ends to the two bearing portions so as to be rotatable about a horizontal axis, and a damper that is provided between one of the parallel links and the second bearing portion to adjust and hold the vertical swing load. Consisting of
The arm front-rear operating part has a support plate joined to the second vertical shaft at the upper end, a receiving seat joined to the seating base at the lower end, and each end is rotatable about a horizontal axis between the two. It consists of a parallel link to be joined, and a rotation control type damper that adjusts and holds a longitudinal swing load between one of the receiving seat and the parallel link,
Rotation controlled dampers definitive the operating portion after the skill is, the own weight of the movable portion of the prowess after actuation portion, and the dead weight of the arm in the vertical actuating portion and the arm holder, and the arm entire own weight from the shoulder joint, consisting of a load The damper in the arm up-and-down actuating part balances the load that consists of the weight of the movable part of the arm up-and-down actuating part and the weight of the arm holding part and the weight of the entire arm from the shoulder joint. The damper in the arm holding portion has a drag force that balances the load consisting of the weight of the movable portion of the arm holding portion and the weight of the entire arm from the shoulder joint.
The arm motion support device according to claim 2 is the arm motion support device according to claim 1, wherein the receiving seat is joined to the stool so as to be raised and lowered, and the standing posture of the receiving seat is positioned and held by a stopper. .
According to a third aspect of the present invention, there is provided an arm movement support device, wherein the hand support plate can be pivoted up and down through a horizontal axis perpendicular to the longitudinal direction at the protruding end of the arm placement seat of the arm movement support device according to the first or second aspect. The vertical swing load is adjusted and held by a rotation control type damper disposed between the two.
Therefore, according to the above configuration, the arm is held by the arm mounting seat of the arm holding portion, is pivotally supported by the support seat, and the horizontal axis that integrates the arm mounting seat corresponds to the vertical movement of the elbow joint. first vertical axis of the bearing portion corresponds to the left and right swinging of the elbow joint through which an integral support seat. The second vertical axis of the second bearing portion of the arm up / down operation portion corresponds to the left / right swinging of the shoulder joint, and the parallel link passed to both the bearing portions corresponds to the vertical movement of the entire arm including the upper arm. In addition, the parallel link of the arm front-rear operating part corresponds to the front-rear movement of the entire arm.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Stool table for fixing the arm operation support system is also provided which is joined from those one pedestal the two base folding expand freely, from what Udeno置座is constant shape sufficient to place the arms, There is also provided a device in which a part of the bottom portion protrudes in a telescopic manner in accordance with the length of the arm along the longitudinal direction.
[0006]
【Example】
Referring to FIG. 1, the arm movement support device a according to the present invention is roughly divided into an arm holding unit 1, an arm up / down operation unit 2, and an arm front / rear operation unit 3, as shown in FIG. ing. The arm holding unit 1 supports an arm mounting seat 4 on which the arm A is mounted, and a support seat that supports the arm mounting seat 4 so as to swing up and down by receiving a horizontal shaft 5 orthogonal to one end of the arm mounting seat 4. 6 and a damper 9 in which the rear end of the cylinder is pivotally joined to a mounting seat 8 projecting from the side plate 7 of the arm mounting seat 4 and the tip of the cylinder rod is pivotally joined to the support seat 6. The damper 9 is adjusted so as to develop a drag force capable of holding the weight of the entire arm from the shoulder joint and the weight of the movable portion (arm mounting seat 4) of the structural member of the arm holding portion 1. As shown in FIG. 2 , the arm mounting seat 4 is a bowl-shaped body in which the left and right side plates 7 and the bottom plate 10 are connected by a curved portion at the corner, and as shown in FIG. A required dimension (a length sufficient to support the hand) protrudes from the front end of the side plate 7, and a notch portion 11 is provided in the rear portion including the side plate 7 on the side opposite to the mounting side of the support seat 6, and the bottom plate 10 is notched. The side shape of the side plate 7 is such that the attachment side end of the support seat 6 is tall, the other end is low, the middle portion is formed as an inclined edge, and the arm holding band is provided on the front side plate 7. 12 is formed by joining one end.
The arm holding portion 1 is an arm up / down operation portion 2 joined via a support seat 6, and a first bearing in which a first vertical shaft 13 is rotatably supported at one end and the support seat 6 is joined to the first vertical shaft 13. A second bearing portion 16 that rotatably supports the second vertical shaft 15 at the other end of the portion 14 at a required interval; and both ends of the bearing portions 14 and 16 can be rotated about a horizontal axis. a parallel link 17 to be joined, Ri formed from one bonded to the front end of the rod rotatably to a damper 18 for joining the rear end of the cylinder to the second bearing portion 16 of the parallel link 17, the damper 18 to the arm move up and down It is adjusted so as to develop a drag force that can hold the weight of the movable part of the part 2 and the weight of the arm holding part 1 and the weight of the entire arm from the shoulder joint.
The arm front-rear operating unit 3 has a support plate 19 joined to the second vertical shaft 15 at the upper end, a receiving seat 21 joined to the stool 20 at the lower end, and each end pivots about a horizontal axis between them. a parallel link 22 to freely joined, as shown in FIG. 4, Ri from the receiving seat 21 in the damper 23 of the rotary control type bonding the rotary control axis in the axial branch of one of the parallel link 22 joined to the casing Metropolitan formed, The damper 23 is adjusted so as to develop a drag force capable of holding the own weight of the movable part of the arm front / rear action part 3, each weight of the arm up / down action part 2 and the arm holding part 1, and the own weight of the entire arm from the shoulder joint. Made up.
[0007]
The use of the arm movement support device a thus configured is that, as shown in FIGS. 1 and 2, a care recipient B who has a motor function disorder in the arm is seated on the stool 20, and the arm holder 1 is mounted on the arm.置座4 arms a is placed on and fixed to the arm a on the arm mounting置座4 on the band 12, the own weight of the whole arm including an upper arm, with its own weight in accordance with the work of structural members of the above-described respective units Since the total load is supported by the dampers 9, 18, and 23, the caregiver can grasp the arm holding portion 1 and concentrate the effort only on the movement of the arm A, so that the care effort is reduced.
Therefore, the movement support of the arm A will be described. When the arm holding portion 1 is grasped and lifted, the entire arm is lifted around the shoulder joint via the parallel link 17, and in this state, the arm holding portion 1 is swung left and right. The arm A swings left and right around the elbow joint, and when the arm holding portion 1 is pushed upward about the horizontal axis 5 in the state of swinging inward, the arm A moves upward about the elbow joint. Because the hand is bent and the hand can approach the mouth, a series of these operations are repeated at meals. In addition, if the protrusion part of the baseplate 10 of the arm mounting base 4 is lengthened as shown by a virtual line, or a hand support plate (not shown) is joined to the baseplate 10 so as to be extendable and contractible, the hand and the protrusion part or the hand A spoon or the like can be sandwiched between the support plate.
[0008]
It is possible to push the arm A forward or backward with the arm A lowered, as indicated by the phantom line by the parallel link 22, and further, the second vertical shaft 15 of the second bearing portion 16. By rotating, the entire arm can swing left and right around the shoulder joint. Further, the back-and-forth movement of the waist can be transmitted to the arm A through the shoulder joint by the parallel link 22 and the parallel link 17 without difficulty.
[0009]
Further, as shown in FIG. 5, the receiving seat 21 is joined to the seat base 20 via a hinge 24 so as to be raised and lowered, and a pin 27 is attached to the guide fitting 26 joined to the bottom plate 25 of the receiving seat 21. The seat 21 is guided by removably guiding in a direction perpendicular to the axis of movement, and a clasp 28 having a pin hole for engaging the pin 27 is joined to the seat 20 and the pin 27 is engaged with the pin hole. It is possible to provide a stopper 29 for maintaining the standing posture. Further, when the stool 20 is divided from the center in the width direction and is foldably joined by a hinge 30, the arm holder 1, the arm up / down operating unit 2, and the arm front / rear operating unit are attached to the stool 20 on one side as indicated by a virtual line. 3 collapses.
[0010]
Further, as shown in FIG. 6, an upper bearing 32 supporting a rotation shaft 31 along the longitudinal direction thereof is joined to the arm mounting seat 4 in which one end of the band 12 is joined to the side plate 7, and the rotation shaft 31 is joined. There is an arm holding portion 35 in which the lower bearing 33 pivotally supported is joined to the intermediate receiving seat 34, the intermediate receiving seat 34 is joined to the horizontal shaft 5, and the arm mounting seat 4 is swingable left and right around the longitudinal direction. Provided.
[0011]
Furthermore, as shown in FIG. 7, the casing of the damper 36 is joined to the outer end portion of the side plate 7 of the arm mounting seat 4, the rotation control shaft is joined to the L-shaped hand support plate 37, and the wrist joint is formed. The arm holding portion 38 that can push and hold the hand placed on the hand support plate 37 in the center by the damper 36 upward can be provided. In the present embodiment, the right-arm support arm movement support device a is shown. However, if only the arm holding portion 1 has a bilaterally symmetric structure, the left-arm support can be obtained by changing the mounting side of the damper 18 of the arm up-and-down operation portion 2. Can also respond immediately.
[0012]
【The invention's effect】
According to the present invention, the entire arm including the upper arm centered on the shoulder joint moves vertically and swings and swings left and right, and the arm moves centering on the elbow joint and swings left and right. Supports arm movement with a wide range of freedom, such as swinging the wrist and moving the wrist up and down, and the weight of the entire arm is held via each damper, reducing the labor of care. For care recipients, fatigue of holding arm posture is reduced, and rehabilitation for functional recovery is also effective.
[Brief description of the drawings]
FIG. 1 is a left side view of an arm movement support device a of the present invention.
FIG. 2 is a schematic front view of FIG.
FIG. 3 is a view taken in the direction of arrow P in FIG.
4 is a cross-sectional view of the lower part of the arm front-rear operating part 3 in a plan view.
FIG. 5 is a main part explanatory view of the second invention in a state in which a receiving seat 21 is foldably joined to a stool 20;
FIGS. 6A and 6B are explanatory views of an arm holding portion 35 according to another embodiment, where FIG. 6A is a schematic front view thereof, and FIG. 6B is a left side view with a part broken away.
FIGS. 7A and 7B are explanatory views of an arm holding portion in the third invention, where FIG. 7A is a schematic front view thereof, and FIG. 7B is a left side view with a part broken away.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Arm holding part 2 Arm up-down action part 3 Arm front-back action part 4 Arm mounting seat 5 Horizontal shaft 6 Support seat 7 Side plate 8 Mounting seat 9 Damper 10 Bottom plate 11 Notch part 12 Band 13 First vertical shaft 14 First bearing part 15 Second vertical shaft 16 Second bearing portion 17 Parallel link 18 Damper 19 Support plate 20 Seat base 21 Seat 22 Parallel link 23 Damper 24 Hinge 25 Bottom plate 26 Guide metal fitting 27 Pin 28 Stopper 29 Stopper 30 Hinge 31 Rotating shaft 32 Upper bearing 33 Lower bearing 34 Intermediate receiving seat 35 Arm holder 36 Damper 37 Hand support plate 38 Arm holder a Arm movement support device A Arm B Care recipient

Claims (3)

An arm placement seat for placing the arm, a support seat for swingably supporting the arm placement seat via a horizontal axis orthogonal to the longitudinal direction thereof, and vertical swinging to the arm placement seat between the two seats An arm holding portion comprising a damper for adjusting and holding a dynamic load;
A first bearing portion that is pivotally supported at one end and a first vertical shaft joined to the support seat, a second bearing portion that is pivotally supported at the other end, and both bearing portions. An arm up-and-down actuating portion comprising: a parallel link that joins each end so as to be rotatable around a horizontal axis; and a damper that is provided between one of the parallel links and the second bearing portion and adjusts and holds a vertical swing load. ,
A support plate joined to the second vertical shaft at the upper end, a receiving seat joined to the stool at the lower end, and a parallel link joined to each end rotatably around a horizontal axis between the two; An arm front / rear operation unit comprising a rotation control type damper that adjusts and holds a front / rear swing load between one of the receiving seat and the parallel link,
The rotation control type damper in the arm front / rear operating part balances the load consisting of the weight of the movable part of the arm front / rear operating part, the weight of the arm up / down operating part and the arm holding part, and the weight of the entire arm from the shoulder joint. The damper in the arm up-and-down operation part has a drag that balances the load consisting of the weight of the movable part of the arm up-and-down action part , the weight of the arm holding part and the weight of the entire arm from the shoulder joint. The damper in the arm holding part has a drag that balances the load consisting of the weight of the movable part of the arm holding part and the weight of the whole arm from the shoulder joint.   The arm movement support device according to claim 1, wherein the receiving seat is joined to the seat base so that the seat can be raised and lowered, and the standing posture of the receiving seat is positioned and held by a stopper. A hand support plate is pivotally supported on the protruding end of the arm mounting seat via a horizontal axis perpendicular to the longitudinal direction, and a vertical swing load is applied by a rotation control type damper disposed between the two. Adjust and hold,
The arm operation support device according to claim 1 or 2, wherein the rotation control type damper has a drag force that balances a load composed of the weight of the support plate and the weight of the wrist.

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