JP2018166928A - Physical aid - Google Patents

Abstract

To obtain a physical aid that has no restriction in operation time and using place and that has a light and simple structure.SOLUTION: The physical aid 1 includes: a first installation body 2 that is worn on the right forearm; a second installation body 3 that is worn on the right upper arm; and an oil damper 4 that is arranged in the connection position of these installation bodies. The oil damper 4 is fastened to the second installation body 3, with a shaft 5 housed in a shaft insertion hole of the oil damper 4, and with the shaft 5 attached to the first installation body 2. When the right forearm is rotated clockwise, the shaft 5 rotates with the first installation body 2. With the rotation of the shaft 5, a rotor of the oil damper 4 rotates, when resistance works relative to the rotation of the right forearm. When the right forearm is rotated counterclockwise, the shaft 5 rotates with the first installation body 2, with no rotor of the oil damper 4 rotating. In this instance, no resistance by the oil damper 4 works relative to the rotation of the right forearm.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an auxiliary tool for assisting the body.

  2. Description of the Related Art Conventionally, devices for assisting body movement are known. In Patent Document 1, as a device for assisting rotation around the joint of the body, a proximal side mounting part attached to the upper arm, a distal side mounting part attached to the forearm, and these two mounting parts are connected. An apparatus including a coupling mechanism and a motor is described. By rotating the motor, the movement of rotating the forearm relative to the upper arm around the elbow joint is assisted.

JP 2007-029113 A

  A device using power as described above requires a battery and a power source. However, the battery has a limited operating time. When electricity is supplied from a power source, the operating time is not limited, but the place of use is limited to around the power source. In addition, an apparatus using electric power has a complicated configuration that is heavy and has many electric wirings.

  Accordingly, an object of the present invention is to provide a body assisting device having a light and simple configuration with no limitation on operation time and place of use.

  The body assisting device of the present invention includes a first mounting body disposed along a part of the body, a second mounting body disposed along another part continuous with the part of the body, and the first mounting body. And a connecting member disposed at a position for connecting the second mounting body, the first mounting body being rotatable clockwise and counterclockwise with respect to the second mounting body. When the drag acting on the first mounting body by the connecting member when the body is rotated clockwise or counterclockwise rotates the first mounting body clockwise or counterclockwise. The drag force acting on the first mounting body by the connecting member is larger.

  In the present invention, the rotational movement of a part of the body can be assisted by the drag of the connecting member instead of the electric power. Therefore, there is no restriction on the use time and use place. Moreover, if a connection member is used, it can be set as a light and simple structure. Furthermore, since the drag when performing one operation that places a burden on the user among the clockwise and counterclockwise rotation operations is large and the drag when performing the other operation is small, during the other operation that does not impose a burden on the user It is possible to prevent a burden on the user.

  Further, when the first mounting body rotates in one of the clockwise and counterclockwise directions, the first mounting body and the second mounting body do not exceed a predetermined angle so that the angle formed by the first mounting body and the second mounting body does not exceed a predetermined angle. It is preferable to provide a stopper that stops the rotation of the mounting body.

  The stopper can stop the rotation of a part of the body and maintain the stopped state. Further, since the stopper supports the part of the body, it is possible to reduce the load on the part of the body and further the load on the other part of the body that supports the part of the body. This can reduce user fatigue.

  Moreover, it is preferable that the said 2nd mounting body is a wider shape than the said 1st mounting body. Since the other part of the body supports the part of the body that rotates, the support of the part of the body can be strengthened by making the second mounting body disposed in the other part of the body wide. .

  The first mounting body, the second mounting body, and the connecting member are arranged to overlap each other, and when the first mounting body and the second mounting body are disposed along the body, the first mounting body is a body It is preferable that the connecting member is disposed at a position closest to the body, and the connecting member is disposed at a position farthest from the body.

  By making the first wearing body close to the body part and moving the connecting member away from the body part, the body part can easily rotate.

  The connecting member is an oil damper, and the oil damper is attached to the second mounting body and has a rotor. A rotation shaft insertion hole is formed in a central portion of the oil damper. A rotating shaft to be inserted into the rotating shaft insertion hole is attached to one mounting body, and the first mounting body and the second mounting body are connected by inserting the rotating shaft into the rotating shaft insertion hole. It is preferred that

  By using an oil damper, it is possible to achieve a lighter and simpler configuration than when electric power is used. Further, when a part of the body is rotated, the rotor of the oil damper rotates and a drag is generated. Thereby, the rotation operation of a part of the body can be assisted.

Further, the second mounting body has an extending portion extending in an extending direction of the other part of the body when arranged along the other part of the body, and the oil damper is fixed to the first fixed body. The tool and the second fixing tool are fixed to the extending portion at one end and the other end in the radial direction across the rotation shaft insertion hole,
A first hole facing the one end, a second hole facing the other end, and a third hole facing the rotating shaft insertion hole are formed in the extending portion.
The first fixture and the second fixture are inserted into the first hole and the second hole, respectively.
One of the first hole and the second hole and the third hole are preferably long in the extending direction of the extending portion.

  One of the radial end and the other end of the oil damper is fixed at a fixed position with respect to the extending portion of the second mounting body, so when the size of the oil damper changes, the radial end and the other The other position of the end portion and the position of the rotation shaft insertion hole are shifted in the extending direction of the extending portion. However, in the extending portion, the first hole or the second hole that overlaps the other of the one end in the radial direction and the other end, and the third hole that overlaps the rotation shaft insertion hole are long in the extending direction of the extending portion. Even if the size of the damper is changed, the first hole or the second hole overlaps the other of the one end and the other end in the radial direction, and the rotation shaft insertion hole and the third hole overlap. A fixture and a shaft can be inserted into the overlapped portion. Therefore, oil dampers of various sizes can be applied.

  In addition, a part of the body on which the first mounting body is disposed and another part of the body on which the second mounting body is disposed are continuous across a joint, and the first mounting body is moved by extending the joint. It is preferable that the first attachment body is rotated clockwise or counterclockwise by rotating the joint clockwise or counterclockwise and bending the joint.

  This can reduce the load on a part of the body when the joint is extended. Further, when bending the joint, since the drag applied to the body part by the connecting member is small, the load on the body part is small.

  The first wearing body is disposed along the waist of the body, the second wearing body is disposed along the thigh of the body, and the first wearing body is rotated clockwise and counterclockwise by the operation of stretching the waist. It is preferable that the first mounting body is rotated clockwise and counterclockwise by the operation of rotating clockwise and bending the waist.

  This can reduce the load on the waist when the waist is extended with a heavy load. When bending the waist, the load applied to the waist is small because the drag applied to the waist by the connecting member is small.

  In the present invention, the rotational movement of a part of the body can be assisted by the drag of the connecting member instead of the electric power. Therefore, there is no restriction on the use time and use place. Moreover, if a connection member is used, it can be set as a light and simple structure.

It is a perspective view of the body assistance tool which concerns on embodiment of this invention. It is a top view when the 1st mounting body and 2nd mounting body of a body assistance tool are not connected. It is a top view of a rotary damper and a 1st mounting body before attaching a rotary damper to a 1st mounting body. It is a rear view of the 1st mounting body to which the rotary damper was attached. It is a front view of the body assistance tool explaining when a body rotates. It is a figure which shows the back surface of the body assistance tool explaining when a body rotates.

  Hereinafter, preferred embodiments of the present invention will be described.

  FIG. 1 shows a state where the body assisting tool 1 is mounted on the upper right arm and the right forearm of the body. The body assisting device 1 is disposed at a position connecting the first mounting body 2 mounted on the right forearm, the second mounting body 3 mounted on the upper right arm, and the first mounting body 2 and the second mounting body 3. And an oil damper (connection member) 4. The oil damper 4 is disposed on the opposite side of the body torso (not shown). In FIG. 1, the detailed configuration of the oil damper 4 is omitted.

  The first mounting body 2 includes a support plate 11, a semi-arc-shaped arm holder 12, a first belt 13, and a second belt 14. The support plate 11 extends in the longitudinal direction of the right forearm and contacts the outer peripheral surface of the arm holder 12. The arm holder 12 is disposed along the right forearm.

  The first belt 13 is disposed farther from the oil damper 4 than the second belt 14, and is wound around the right forearm from above the arm holder 12. The second belt 14 is disposed near the oil damper 4 and is wound around the right forearm from above the support plate 11 and the arm holder 12. Thereby, the support plate 11 and the arm holder 12 are fixed so as not to be displaced from the right forearm. When the first mounting body 2 is mounted on the right forearm, the support plate 11 and the arm holder 12 are disposed on the opposite side of the body torso (not shown).

  The second mounting body 3 includes a support plate (extending portion) 15, a semi-arc-shaped arm holder 16, a first belt 17, and a second belt 18. The support plate 15 extends in the longitudinal direction of the upper right arm, and the support plate 15 is in contact with the outer peripheral surface of the arm holder 16. The arm holder 16 is disposed along the upper right arm.

  The first belt 17 is disposed farther from the oil damper 4 than the second belt 18, and is wound around the upper right arm from above the arm holder 16. The second belt 18 is disposed at a position close to the oil damper 4 and is wound around the upper right arm from above the support plate 15 and the arm holder 16. Thereby, the support plate 15 and the arm holder 16 are fixed so as not to be displaced from the upper right arm. When the second mounting body 3 is mounted on the upper right arm, the support plate 15 and the arm holder 16 are disposed on the opposite side of the body torso (not shown).

  The support plate 15 of the second mounting body 3 has a laterally wider shape than the support plate 11 of the first mounting body 2. Further, the first belt 17 and the second belt 18 of the second mounting body 3 are wider than the first belt 13 and the second belt 14 of the first mounting body 2.

  FIG. 2 shows a diagram in which the first mounting body 2 and the second mounting body 3 are not connected. In the first mounting body 2, a shaft 5 is attached to the lower part of the support plate 11. The shaft 5 projects in a direction perpendicular to the plane of the support plate 11 (see FIG. 1) and is accommodated in the rotation shaft insertion hole 4a of the oil tamper 4. As shown in FIG. 2, the oil tamper 4 is fixed to the lower part of the support plate 15 of the second mounting body 3.

  In FIG. 3, the figure which removed the oil damper 4 from the support plate 15 of the 2nd mounting body 3 is shown. A round hole 21 and a long hole 22 for attaching the oil damper 4 and a long shaft hole (hole) 23 are formed between them at the lower part of the support plate 15. The round hole 21 is formed at the lower end of the support plate 15. The long hole 22 is formed above the round hole 21 and is formed at a position close to the first belt 17. The round hole 21, the shaft long hole 23, and the long hole 22 are arranged in order from the lower end portion to the upper end portion of the support plate 15.

  The round hole 21 is circular. The long hole 22 and the shaft long hole 23 extend long in the longitudinal direction of the support plate 15. The shaft long hole 23 is a hole through which the shaft 5 (see FIG. 1) passes, and is wider than the round hole 21 and the long hole 22.

  The oil damper 4 includes a main body case 31 and a rotor 32 accommodated in the main body case 31. An oil (not shown) is filled between the main body case 31 and the rotor 32. A rotation shaft insertion hole 4a for accommodating the shaft 5 (see FIG. 1) is formed at the center of the oil damper 4. The main body case 31 is formed with a screw hole 31a and a screw hole 31b at one end and the other end in the radial direction across the rotation shaft insertion hole 4a.

  As shown in FIG. 2, the oil damper 4 is attached to the support plate 15 at one end and the other end in the radial direction with the rotation shaft insertion hole 4 a sandwiched therebetween using fixtures 41 and 42 such as screws, bolts, and nuts. It is fixed (reference). When the oil damper 4 is fixed to the support plate 15, the screw hole 31 a and the screw hole 31 b of the oil damper 4 are overlapped with the round hole 21 and the long hole 22 of the support plate 15, respectively, in FIG. 3. At this time, the rotation shaft insertion hole 4 a of the oil damper 4 is made to overlap the shaft long hole 23. A fixing tool 41 (screw, bolt, etc.) is inserted into the place where the screw hole 31a and the round hole 21 penetrate, and a fixing tool 42 (screw, bolt, etc.) is inserted into the place where the screw hole 31b and the long hole 22 penetrate ( (See FIG. 2). Then, as shown in FIG. 4, from the back side of the support plate 15, a nut 41 a (fixing tool 41) is fitted to a fixing tool 41 (screw, bolt, etc.) that has passed through the round hole 21. Further, the nut 42a (fixing tool 42) is fitted to the fixing tool 42 (screw, bolt, etc.) that has passed through the long hole 22. Thereby, the fixing tool 41 and the fixing tool 42 are prevented from coming out of the round hole 21 and the long hole 22, respectively. The nuts 41 a and 42 a are larger than the widths of the round hole 21 and the long hole 22. The nuts 41 a and 42 a protrude from the back surface of the support plate 15.

  Here, returning to FIG. 3, when the size of the oil damper 4 changes, the radial distance from the screw hole 31a of the oil damper 4 to the rotating shaft insertion hole 4a, and the screw hole 31a of the oil damper 4 to the screw hole 31b. The radial distance to is changed. When the screw hole 31 a of the oil damper 4 is overlapped with the round hole 21 of the support plate 15, the position of the rotary shaft insertion hole 4 a and the position of the screw hole 31 b are shifted in the longitudinal direction of the support plate 15 depending on the size of the oil damper 4. However, since the long shaft hole 23 and the long hole 22 of the support plate 15 extend in the longitudinal direction of the support plate 15, the rotation shaft insertion hole 4 a of the oil damper 4 overlaps the long shaft hole 23, and the oil damper 4 The screw hole 31 b overlaps the elongated hole 22. The oil damper 4 can be fixed to the support plate 15 by inserting the shaft 5 and the fixture 42 into the overlapped portion.

  In FIG. 2, the shaft 5 of the first mounting body 2 is accommodated in the rotary shaft insertion hole 4a through the shaft long hole 23 from the back side of the second mounting body 3 (see FIG. 4). The body 2 and the second mounting body 3 can be connected. While the first mounting body 2 and the second mounting body 3 are connected, the first mounting body 2 is mounted on the right forearm and the second mounting body 3 is mounted on the upper right arm (see FIG. 1).

  FIG. 5 and FIG. 6 show views in which the right forearm is rotated with respect to the upper right arm when the elbow joint is extended or bent. FIG. 5 is a view of the first mounting body 2 and the second mounting body 3 as viewed from the front, and FIG. 6 is a diagram illustrating the back surfaces of the first mounting body 2 and the second mounting body 3.

  When a load is applied to the right forearm when the oil damper 4 is viewed from the front, the elbow joint is extended and the right forearm rotates clockwise with respect to the upper right arm (see FIG. 5). Accordingly, the first mounting body 2 rotates clockwise with respect to the second mounting body 3, and the shaft 5 also rotates clockwise. The shaft 5 engages with the inner peripheral surface of the rotor 32 of the oil damper 4, and the rotor 32 rotates clockwise together with the shaft 5. At this time, a drag acts on the clockwise rotation of the right forearm. This drag reduces the load on the right forearm due to the load. Also, the load on the upper right arm that supports the rotation of the right forearm is reduced.

  When the right forearm rotates further clockwise with respect to the upper right arm, the support plate 11 of the first mounting body 2 contacts the nut (stopper) 41a of the fixture 41 as shown in FIG. The forearm stops rotating.

  The position at which the rotation of the support plate 11 and the right forearm stops can be, for example, a position where the angle θ between the support plate 11 and the support plate 15 is 150 degrees (see FIG. 5). By adjusting the size and position of the nut 41a, it is possible to adjust the position where the rotation of the support plate 11 and the right forearm is stopped.

  When there is no load on the right forearm, the right forearm rotates counterclockwise with respect to the upper right arm in an attempt to bend the elbow joint. Accordingly, the first mounting body 2 rotates counterclockwise with respect to the second mounting body 3, and the shaft 5 also rotates counterclockwise. At this time, the shaft 5 does not engage with the inner peripheral surface of the rotor 32. Therefore, the rotor 32 does not rotate, and only the shaft 5 rotates inside the rotor 32 (idling). Accordingly, the drag by the oil damper 4 does not act on the counterclockwise rotation of the right forearm. Therefore, when the elbow joint is bent, the elbow joint can be bent easily.

As described above, this embodiment has the following effects.
In this embodiment, not the electric power but the drag of the oil damper 4 can assist the rotation of the right forearm when the elbow joint is extended. Since the oil damper 4 is used, there is no restriction on the use time when using a battery and the use place when using a power source. Further, when the oil damper 4 is used, a light and simple configuration can be obtained.

  Furthermore, in the operation of extending the elbow joint that places a burden on the right forearm, the drag by the oil damper 4 is large, and in the operation of bending the elbow joint that does not place a burden on the right forearm, the drag by the oil damper 4 does not act, so only the necessary operation In an operation that does not place a burden on the user, an unnecessary burden can be reduced.

  Moreover, in the operation | movement which extends an elbow joint, rotation of a right forearm can be stopped on the way with the nut (stopper) 41a of the fixing tool 41, and the stopped state can be maintained. Further, since the right forearm is supported by the nut (stopper) 41a, it is possible to reduce the load on the right forearm due to luggage or the like, and further the load on the upper right arm that supports the right forearm. This can reduce user fatigue.

  Moreover, the support of the right forearm by the upper right arm can be strengthened by making the support plate 15 and the arm holder 16 arranged along the upper right arm wide.

  Further, when the body support tool 1 is worn (see FIG. 1), the support plate 11 of the first wearing body 2, the first support plate 15 of the second wearing body 3, and the oil damper 4 overlap each other around the elbow joint. And the support plate 11 is closest to the right forearm in which the support plate 11 rotates. The oil damper 4 is disposed at the farthest position. This makes it easier to rotate the right forearm.

  Moreover, in the support plate 15 of the 2nd mounting body 3, the axial long hole 23 and the long hole 22 are long in the longitudinal direction of the support plate 15 (refer FIG. 3). Thereby, when the screw hole 31a of the oil damper 4 is overlapped with the round hole 21 of the support plate 15, the position of the rotary shaft insertion hole 4a and the position of the screw hole 31a are in the longitudinal direction of the support plate 15 depending on the size of the oil damper 4. Even if they are displaced, the rotation shaft insertion hole 4a and the screw hole 31a can be overlapped with the shaft long hole 23 and the long hole 22 of the support plate 15, respectively. The shaft 5 and the fixture 42 can be inserted into the overlapped portion. Therefore, oil dampers of various sizes can be applied.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is defined by the terms of the claims, rather than the description above, and includes all modifications within the scope and meaning equivalent to the terms of the claims.

  For example, in the embodiment described above, the oil damper 4 is used as the connecting member, but a spring may be used instead of the oil damper 4.

  Further, in the above-described embodiment, the nut 41a of the fixture 41 is used as a stopper for stopping the clockwise rotation of the right forearm and the first mounting body 2, but a member serving as a stopper is separately attached to the second mounting body 3. May be. Moreover, it is good also as a structure which does not have a stopper.

  Furthermore, in the embodiment described above, the support plate 15, the first belt 17 and the second belt 18 of the second mounting body 3 mounted on the upper right arm are supported by the support plate 11 of the first mounting body 2 mounted on the right forearm. Although it is wider than the first belt 13 and the second belt 14, these widths may be the same.

  In the embodiment described above, the long hole 22 and the shaft long hole 23 formed in the support plate 15 of the second mounting body 3 are long in the longitudinal direction of the support plate 15, but these holes may be circular.

  Moreover, although embodiment mentioned above demonstrated the body assistance tool 1 with which an upper right arm and a right forearm were mounted | worn, a body assistance tool may be mounted in another site | part. For example, it may be worn on the left upper arm and the left forearm. In order to assist the movement around the joint, for example, the knee joint, a body support tool may be attached to the thigh and the lower leg. Moreover, in order to assist the operation | movement which extends the joint of an ankle, you may mount | wear a body support tool with a leg part and a leg part. Further, a body support tool may be attached to the forearm and the hand to assist the operation of extending the wrist joint.

  Moreover, in order to assist the operation | movement which extends a waist | hip | lumbar part other than the operation | movement which extends a joint, you may mount | wear a body assistance tool to a waist | hip | lumbar part and a leg part. This can reduce the burden on the waist when lifting a heavy load.

  In the embodiment described above, the oil damper 4 is fixed to the support plate 15 using the fixtures 41 and 42 (see FIG. 2), but may be fixed by welding or the like without using the fixture.

  In the above-described embodiment, the first mounting body 2 and the second mounting body 3 include the arm holder, but the first mounting body 2 and the second mounting body 3 may not include the arm holder.

DESCRIPTION OF SYMBOLS 1 Body assist tool 2 1st mounting body 3 2nd mounting body 4 Oil damper 4a Rotating shaft insertion hole 5 Axis 11 Support plate 12,16 Arm holder 13,17 1st belt 14,18 2nd belt 15 Support plate (extension) Part)
21 round hole 22 long hole 23 shaft long hole (hole)
31 Body case 31a, 31b Screw hole 32 Rotor 41, 42 Fixing tool 41a Nut (stopper)
42a Nut 70,80 type internal agent

Claims (8)

A first wearing body disposed along a part of the body;
A second wearing body disposed along another part continuous with the part of the body;
A connecting member disposed at a position for connecting the first mounting body and the second mounting body;
The first mounting body is rotatable clockwise and counterclockwise with respect to the second mounting body;
When the first mounting body is rotated clockwise or counterclockwise, a drag force acting on the first mounting body by the connecting member causes the first mounting body to be rotated clockwise or counterclockwise. A body assisting device, wherein the body assisting device is larger than a drag force acting on the first wearing body by the connecting member when rotated.   When the first mounting body is rotated clockwise or counterclockwise, the first mounting body and the second mounting body do not exceed a predetermined angle so that the angle formed by the first mounting body and the second mounting body does not exceed a predetermined angle. The body assisting device according to claim 1, further comprising a stopper for stopping the rotation of the body.   The body support tool according to claim 1 or 2, wherein the second wearing body is wider than the first wearing body. The first mounting body, the second mounting body, and the connecting member are arranged to overlap each other,
When the first mounting body and the second mounting body are disposed along the body, the first mounting body is disposed at a position closest to the body, and the connecting member is disposed at a position farthest from the body. The body auxiliary tool according to any one of claims 1 to 3, wherein The connecting member is an oil damper;
The oil damper is attached to the second mounting body and has a rotor,
A rotation shaft insertion hole is formed in the center of the oil damper,
A rotation shaft to be inserted into the rotation shaft insertion hole is attached to the first mounting body,
The body according to any one of claims 1 to 4, wherein the first attachment body and the second attachment body are connected by inserting the rotation shaft into the rotation shaft insertion hole. Auxiliary tool. The second wearing body has an extending portion that extends in the extending direction of the other part of the body when arranged along the other part of the body,
The oil damper is fixed to the extending portion by a first fixing tool and a second fixing tool at one end and the other end in the radial direction across the rotation shaft insertion hole,
A first hole facing the one end, a second hole facing the other end, and a third hole facing the rotating shaft insertion hole are formed in the extending portion.
The first fixture and the second fixture are inserted into the first hole and the second hole, respectively.
The body assisting device according to claim 5, wherein one of the first hole and the second hole and the third hole are long in an extending direction of the extending portion. A part of the body where the first wearing body is arranged and the other part of the body where the second wearing body is arranged are continuous across the joint,
Rotating the first wearing body clockwise or counterclockwise by the operation of extending the joint;
The body support device according to any one of claims 1 to 6, wherein the first wearing body is rotated clockwise or counterclockwise by an operation of bending the joint. The first wearing body is disposed along the waist of the body,
The second wearing body is disposed along the thigh of the body;
Rotating the first wearing body clockwise or counterclockwise by the operation of extending the waist,
The body support device according to any one of claims 1 to 6, wherein the first mounting body is rotated clockwise or counterclockwise by an operation of bending the waist.

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