JP2015023907A - Wheelchair connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair connector that can be easily attached.SOLUTION: A wheelchair connector 1 includes: a first fixation part 2 having first engaging parts 22 and 23 that engage with a handle part of a first wheelchair; a second fixation part 3 having second engaging parts 32 and 33 that engage with a handle part of a second wheelchair; a connection part 4 arranged between the first and second fixation parts 2 and 3; a first joint 5 for rotatably connecting the first fixation part 2 and the connection part 4; and a second joint 6 for rotatably connecting the second fixation part 3 and the connection part 4.

Description

  The present invention relates to a wheelchair connector.

  Conventionally, a wheelchair connector for connecting a plurality of wheelchairs as described in Patent Document 1 is known. However, since the wheelchair connector described in Patent Document 1 connects a frame located under the seat surface of the wheelchair located in front and a frame located at the foot of the wheelchair behind, the installation thereof The position is very low. For this reason, both wheelchairs are complicated to mount. In addition, since the connecting tool extends from the foot of a patient (human) sitting on the rear wheelchair, there is a high possibility that the patient will hook his / her foot on the connecting tool. A patient sitting in a wheelchair often has weak legs, and the above problem is very likely to occur and is dangerous.

JP 2007-31805 A

  An object of the present invention is to provide a wheelchair connector that is easy to wear.

Such an object is achieved by the present invention described below.
(1) a first fixing portion having a first engaging portion that engages with a handle of the first wheelchair;
A second fixing portion having a second engaging portion that engages with a handle of the second wheelchair;
A connecting portion disposed between the first fixing portion and the second fixing portion;
A first joint for rotatably connecting the first fixed portion and the connecting portion;
A wheelchair connector comprising: a second joint that rotatably connects the second fixing portion and the connecting portion.

(2) a first posture maintaining mechanism that maintains the posture of the first fixed portion with respect to the connecting portion;
The wheelchair connector according to (1), further including a second posture maintaining mechanism that maintains the posture of the second fixed portion with respect to the connecting portion.

(3) The first engagement portion has an insertion hole through which the handle of the first wheelchair is passed,
Said 2nd engaging part is a wheelchair coupling tool as described in said (1) or (2) which has the penetration hole which lets the said handle of a said 2nd wheelchair pass.

  (4) The wheelchair connector according to (3), wherein each of the first engagement portion and the second engagement portion can change a width of the insertion hole.

(5) The first engagement portion sandwiches the handle of the first wheelchair,
The wheelchair connector according to any one of (1) to (4), wherein the second engagement portion clamps the handle of the second wheelchair.

  (6) The wheelchair connector according to (3), wherein each of the first engagement portion and the second engagement portion is configured to press-fit the handle into the insertion hole.

(7) The first engagement portion includes a wide portion in which the width of the insertion hole is wider than the width of the handle of the first wheelchair, and a narrow portion that is narrower than the width of the handle. ,
The second engagement portion includes a wide portion having a width of the insertion hole wider than a width of the handle of the second wheelchair and a narrow portion narrower than a width of the handle. The wheelchair connector according to (5) or (6).

  (8) The wheelchair connector according to any one of (1) to (7), wherein a rotation axis of the first joint and a rotation axis of the second joint are parallel.

  (9) The wheelchair connector according to any one of (1) to (8), wherein the connecting portion is configured to be extendable.

  According to this invention, since it is comprised so that the handle | steerings of a 1st wheelchair and a 2nd wheelchair may be connected, it can mount | wear easily. In addition, since the wearing position is high, the patient using the wheelchair is safe without getting caught. For example, since it can utilize also as a holding part at the time of moving the 1st, 2nd wheelchair, the 1st, 2nd wheelchair can be moved smoothly. Moreover, it can utilize also as a handrail and can assist getting on and off to a wheelchair.

It is a perspective view which shows an example of a wheelchair. It is a top view which shows the wheelchair coupling tool which concerns on 1st Embodiment of this invention. It is sectional drawing of the 1st fixing | fixed part which the wheelchair coupling tool of FIG. 2 has. It is the top view and sectional drawing of a connection part which the wheelchair connection tool of FIG. 2 has. It is sectional drawing of the joint which the wheelchair coupling tool of FIG. 2 has. It is a figure explaining the usage method of the wheelchair coupling tool of FIG. It is a figure explaining the usage method of the wheelchair coupling tool of FIG. It is a top view which shows the wheelchair coupling tool which concerns on 2nd Embodiment of this invention. It is a figure explaining the usage method of the wheelchair coupling tool shown in FIG. It is sectional drawing which shows the wheelchair coupling tool which concerns on 3rd Embodiment of this invention. It is a top view which shows the wheelchair coupling tool which concerns on 4th Embodiment of this invention. It is sectional drawing which shows the wheelchair coupling tool which concerns on 5th Embodiment of this invention.

  Hereinafter, a preferred embodiment of a wheelchair connector of the present invention will be described with reference to the accompanying drawings.

<First Embodiment>
First, a first embodiment of the wheelchair connector of the present invention will be described.

  FIG. 1 is a perspective view showing an example of a wheelchair. FIG. 2 is a plan view showing the wheelchair connector according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view of a first fixing portion of the wheelchair connector of FIG. FIG. 4 is a plan view and a cross-sectional view of a connecting portion of the wheelchair connector of FIG. FIG. 5 is a cross-sectional view of a joint included in the wheelchair connector of FIG. 6 and 7 are diagrams for explaining how to use the wheelchair connector of FIG.

  A wheelchair 9 shown in FIG. 1 is a general wheelchair, and includes a seating surface 91, a backrest 92, a foot plate 93, an elbow rest 94, a caster 95, a tire 96, handles 971 and 972, and a handle 971. , 972, and grips 981, 982. However, the configuration of the wheelchair 9 is not limited to this. For example, the wheelchair 9 may further include a brake.

  A wheelchair connector 1 shown in FIG. 2 is an instrument that connects two wheelchairs 9. In the following, for convenience of explanation, one wheelchair 9 of the two wheelchairs 9 is referred to as “first wheelchair 9A”, and the other wheelchair 9 is also referred to as “second wheelchair 9B”.

  The wheelchair connector 1 includes a first fixing portion 2 that fixes (connects) the first wheelchair 9A, a second fixing portion 3 that fixes (connects) the second wheelchair 9B, and a first fixing portion 2. A connecting portion 4 provided between the first fixing portion 3 and the second fixing portion 3; a first joint 5 connecting the first fixing portion 2 and the connecting portion 4; a second fixing portion 3; And a second joint 6 connecting the two.

  As shown in FIG. 2, the first fixing portion 2 includes a hard rod-like main body 21, a pair of engaging portions (first engaging portions) 22 and 23 provided on the main body 21, and an engaging portion. And locking mechanisms 24 and 25 provided on the heads 22 and 23, respectively. Further, the engaging portions 22 and 23 have a donut shape having insertion holes 22a and 23a. In the first fixing portion 2 having such a configuration, the first wheelchair 9A can be fixed by passing the handle 971 through the insertion hole 22a and passing the handle 972 through the insertion hole 23a.

  However, the shape of the engaging portions 22 and 23 is not particularly limited as long as it has the insertion holes 22a and 23a. The engaging portions 22 and 23 may be made of metal or resin, or may be soft like a string, or have elasticity (stretchability) made of rubber. There may be.

  The locking mechanisms 24 and 25 are in a fixed state in which the engaging portions 22 and 23 are fixed to the main body 21, can be slid in the axial direction of the engaging portions 22 and 23 with respect to the main body 21, and can be rotated about the axis. The release state can be switched. By setting the lock mechanisms 24 and 25 to the released state, the positions of the engaging portions 22 and 23 (separation distance between the engaging portions 22 and 23) can be changed, and by setting the locking mechanisms 24 and 25 to the fixed state, the engaging portion 22 can be changed. , 23 can be fixed. Thus, it becomes wheelchair connector 1 excellent in the convenience which can be applied to various wheelchairs by making the position of engaging parts 22 and 23 variable.

  The configuration of the locking mechanisms 24 and 25 is not particularly limited as long as the above functions can be exhibited. As shown in FIG. 3, the locking mechanism 24 of the present embodiment includes a substantially C-shaped body 241 disposed on the outer periphery of the main body 21, a pin 242 inserted through the body 241, and a cam lever attached to the pin 242. 243, and a contact plate 244 provided between the body 241 and the cam lever 243. The base portion of the cam lever 243 has an eccentric cam shape. When the cam lever 243 is raised, the body 241 is loosened and can slide with respect to the main body 21. Conversely, when the cam lever 243 is tilted, the body 241 is tightened. It is fixed to the main body 21. The lock mechanism 25 has the same configuration as this.

  In this embodiment, the locking mechanisms 24 and 25 are provided in both the engaging portions 22 and 23. However, if a locking mechanism is provided in either one, the same effect as in this embodiment can be exhibited. it can. That is, for example, the engaging part 22 may be fixed to the main body 21, and only the engaging part 23 may be able to change its position on the main body 21. In addition, the engaging portions 22 and 23 may be fixed to the main body 21 without providing the engaging portions 22 and 23 with a lock mechanism. In addition, the engaging portions 22 and 23 may be slidable on the main body 21 without providing the engaging portions 22 and 23 with a lock mechanism. Further, in the present embodiment, when the lock mechanisms 24 and 25 are in the released state, the engaging portions 22 and 23 can be rotated with respect to the main body 21, but may not be able to rotate.

  As shown in FIG. 2, the second fixing portion 3 includes a hard rod-shaped main body 31, a pair of engaging portions (second engaging portions) 32 and 33 provided on the main body 31, and an engaging portion. And locking mechanisms 34 and 35 provided on 32 and 33. Moreover, the engaging parts 32 and 33 have comprised the donut shape which has the penetration holes 32a and 33a. In the second fixing portion 3 having such a configuration, the second wheelchair 9B can be fixed by passing the handle 971 through the insertion hole 32a and passing the handle 972 through the insertion hole 33a. Since the second fixing part 3 has the same configuration as the first fixing part 2, detailed description thereof is omitted.

  The connecting portion 4 has a hard bar shape and can be expanded and contracted. As shown in FIG. 1 and FIG. 4A, the connecting portion 4 includes an outer cylinder 41, an inner cylinder 42 inserted into the outer cylinder 41, a lock mechanism 43 provided at an end of the outer cylinder 41, have. The inner cylinder 42 may or may not be able to rotate with respect to the outer cylinder 41.

  The lock mechanism 43 can switch between a fixed state in which the inner cylinder 42 is fixed to the outer cylinder 41 and a released state in which the inner cylinder 42 is slidable with respect to the outer cylinder 41. Therefore, the amount of protrusion of the inner cylinder 42 from the outer cylinder 41 can be changed and adjusted by setting the lock mechanism 43 to the released state, and the amount of protrusion of the inner cylinder 42 can be fixed by setting the lock mechanism 43 to the fixed state. Can do. Thus, when the connection part 4 is comprised so that expansion-contraction is possible, the length of the connection part 4 can be adjusted according to use conditions, and it becomes the wheelchair connection tool 1 excellent in convenience. It is preferable that the connection part 4 can be expanded-contracted in the range of about 50 cm to 200 cm.

  The configuration of the lock mechanism 43 is not particularly limited as long as the above function can be exhibited. As shown in FIG. 4B, the lock mechanism 43 of the present embodiment has a configuration using a cam lever similarly to the lock mechanism 24. That is, the lock mechanism 43 includes a substantially C-shaped body 431 disposed on the outer periphery of the outer cylinder 41, a pin 432 inserted through the body 431, a cam lever 433 attached to the pin 432, and the body 431 and the cam lever 433. And a contact plate 434 provided between the two. On the other hand, a slit 419 extending in the axial direction and opening at the end is formed at the end of the outer cylinder 41. When the cam lever 433 is raised, the body 431 (the end of the outer cylinder 41) is loosened, and the inner cylinder 42 is slidable with respect to the outer cylinder 41. Conversely, when the cam lever 433 is tilted, the body 431 (the outer cylinder 41) The inner cylinder 42 is fixed to the outer cylinder 41 by tightening the end portion.

  In addition, although the connection part 4 of this embodiment is provided with the outer cylinder 41 and the inner cylinder 42, and is comprised so that expansion-contraction is possible, in order to expand an expansion-contraction range, for example, it inserts in an outer cylinder and an outer cylinder, You may provide the middle cylinder which can be slid with respect to an outer cylinder, and the inner cylinder which is inserted in a middle cylinder and can slide with respect to a middle cylinder. Moreover, the connection part 4 may be a structure which cannot expand-contract. In this case, for example, the connecting portion 4 can be configured by a single rod.

  In the first joint 5, the first fixing portion 2 is rotatably connected to the connecting portion 4, and the posture of the first fixing portion 2 with respect to the connecting portion 4 can be fixed. Yes. The configuration of the first joint 5 is not particularly limited as long as such an effect can be exhibited. As shown in FIG. 5A, in the first joint 5 of the present embodiment, the end of the inner cylinder 42 is a pair of tongue pieces (protruding pieces) 211 and 212 formed at the end of the main body 21. These are arranged between them and are pivotally connected by a shaft pin 51. Further, the shaft pin 51 is provided with a cam lever (first posture maintaining mechanism) 52. When the cam lever 52 is raised, the inner cylinder 42 is tightened by the tongue pieces 211 and 212, and the main body 21 and the inner cylinder 42 are released. Can be rotated around the axis of the shaft pin 51. On the contrary, when the cam lever 52 is tilted, the inner cylinder 42 is tightened by the tongue pieces 211 and 212, and the postures of the main body 21 and the inner cylinder 42 are fixed. The movable range of the main body 21 is not particularly limited, but is preferably ± 90 ° or more when the state in which the main body 21 is linear with respect to the inner cylinder 42 is 0 °.

  In the second joint 6, the second fixing portion 3 is rotatably connected to the connecting portion 4, and the posture of the second fixing portion 3 with respect to the connecting portion 4 can be fixed. Yes. The configuration of the second joint 6 is not particularly limited as long as such an effect can be exhibited, but in the present embodiment, the configuration is the same as that of the first joint 5 described above.

  That is, as shown in FIG. 5B, in the second joint 6, the end portion of the outer cylinder 41 is disposed between a pair of tongue pieces 311 and 312 formed at the end portion of the main body 31. Are pivotally connected by a shaft pin 61. The shaft pin 61 is provided with a cam lever (second posture maintaining mechanism) 62. When the cam lever 62 is raised, the outer cylinder 41 is loosened by the tongue pieces 311 and 312 and the main body 31 and the outer cylinder 41 are released. Can be rotated around the axis of the shaft pin 61. On the contrary, when the cam lever 62 is tilted, the outer cylinder 41 is fastened by the tongue pieces 311 and 312, and the postures of the main body 31 and the outer cylinder 41 are fixed. The movable range of the main body 31 is not particularly limited, but is preferably ± 90 ° or more when the state in which the main body 31 is linear with respect to the outer cylinder 41 is 0 °.

  Here, in the connection part 4, when the inner cylinder 42 cannot be rotated with respect to the outer cylinder 41, the shaft pins 51 and 61 are installed substantially parallel to each other. Thereby, since the 1st fixing | fixed part 2 and the 2nd fixing | fixed part 3 can be rotated in the same surface with respect to the connection part 4, the usage method which is mentioned later (refer FIG. 6, FIG. 7). Thus, the wheelchair connector 1 is excellent in convenience. On the other hand, when the inner cylinder 42 can rotate with respect to the outer cylinder 41, the shaft pins 51, 61 can be made substantially parallel by rotating the inner cylinder 42 or the outer cylinder 41. You can also By setting the shaft pins 51 and 61 in a twisted relationship, the first fixing portion 2 and the second fixing portion 3 can be rotated in different planes with respect to the connecting portion 4.

  The configuration of the wheelchair connector 1 has been described in detail above. Next, a method for using the wheelchair connector 1 will be described.

  First, as shown to Fig.6 (a), the main body 21,31 and the connection part 4 are made into linear form, and it connects in the state which arranged the 1st wheelchair 9A and the 2nd wheelchair 9B in the horizontal direction. be able to. In the case of such a usage method, the user (caregiver, helper) grasps the connecting portion 4 and uses the connecting portion 4 as a handle, so that the first wheelchair 9A and the second wheelchair 9B are balanced. You can steer. In particular, since the height of the connecting portion 4 is substantially the same as the height of the handles 971 and 972, the first and second wheelchairs 9A and 9B can be operated without a sense of incongruity. In the case of this usage method, the maneuverability of the first and second wheelchairs 9A and 9B can be enhanced by making the length of the connecting portion 4 relatively short.

  Further, as shown in FIG. 6B, the first wheelchair 9A and the second wheelchairs 9A and 9B having different handle heights are formed by slightly bending the main bodies 21 and 31 to the opposite side in the vertical direction with respect to the connecting portion 4. The wheelchair 9B can be connected. Also in the case of this usage method, the user can handle the first wheelchair 9A and the second wheelchair 9B in a well-balanced manner by holding the connecting portion 4 and using the connecting portion 4 as a handle. Moreover, in the case of this usage method, the controllability of 1st, 2nd wheelchair 9A, 9B can be improved by making the length of the connection part 4 comparatively short.

  Further, as shown in FIG. 7 (a), the first wheelchair 9A is formed by bending the main bodies 21 and 31 substantially at right angles to the same side in the horizontal direction with respect to the connecting portion 4 to form a "U" shape. And the second wheelchair 9B can be connected in a state in which they are arranged in the vertical direction. Also in the case of this usage method, the user can handle the first wheelchair 9A and the second wheelchair 9B in a well-balanced manner by holding the connecting portion 4 and using the connecting portion 4 as a handle. Moreover, since the connection part 4 can be utilized as a handrail, the boarding / alighting to the 2nd wheelchair 9B can be assisted.

  Further, as shown in FIG. 7 (b), the first wheelchair 9A and the second wheelchair 9B are obliquely bent by bending the main bodies 21 and 31 substantially at right angles to the opposite side of the connecting portion 4 in the horizontal direction. They can be connected in a state aligned in the direction. Also in the case of this usage method, the user can handle the first wheelchair 9A and the second wheelchair 9B in a well-balanced manner by holding the connecting portion 4 and using the connecting portion 4 as a handle. Moreover, since there is no 1st wheelchair 9A ahead of the 2nd wheelchair 9B, the boarding / alighting to the 2nd wheelchair 9B becomes smoother compared with the usage method shown to Fig.7 (a), for example.

  As described above, since the wheelchair connector 1 connects the handles of the first and second wheelchairs, the wheelchair connector 1 can be easily mounted and has excellent convenience.

Second Embodiment
Next, a second embodiment of the wheelchair connector of the present invention will be described.

  FIG. 8 is a plan view showing a wheelchair connector according to the second embodiment of the present invention. FIG. 9 is a diagram illustrating a method of using the wheelchair connector shown in FIG.

  Hereinafter, the wheelchair connector of the second embodiment will be described focusing on the differences from the first embodiment described above, and the description of the same matters will be omitted.

  The wheelchair connector of the second embodiment is substantially the same as that of the first embodiment except that the configurations of the first fixing portion and the second fixing portion are different. In addition, since the 1st fixing | fixed part and the 2nd fixing | fixed part are mutually the same structures, below, the 1st fixing | fixed part is demonstrated representatively and the description is abbreviate | omitted about the 2nd fixing | fixed part. To do.

  As shown in FIG. 8, the engaging portions 22 and 23 of the present embodiment have wide portions 221 in which the widths W of the insertion holes 22a and 23a are larger than the widths (widths in the horizontal direction) W1 of the grips 981 and 982, respectively. 231 and narrow portions 222 and 232 narrower than the width W1.

  The 1st fixing | fixed part 2 of this embodiment connects the 1st wheelchair 9A as follows. First, as shown in FIG. 9A, the grip 981 is passed from the wide portion 221 to the insertion hole 22a, and the grip 982 is passed from the wide portion 231 to the insertion hole 23a. Next, the engaging portion 22 is pulled up to press fit the grip 981 into the narrow width portion 222, and the engaging portion 23 is pulled up to press fit the grip 982 into the narrow width portion 232. As a result, as shown in FIG. 9B, the grip 981 is sandwiched by the inner peripheral surface of the narrow portion 222 of the engaging portion 22, and is gripped by the inner peripheral surface of the narrow portion 232 of the engaging portion 23. 982 is clamped and 9 A of 1st wheelchairs can be firmly fixed to the 1st fixing | fixed part 2. FIG.

  In order to firmly fix the first wheelchair 9 </ b> A by the first fixing portion 2, it is preferable to perform a process for increasing the frictional resistance of the inner peripheral surface of the engaging portion 22. Although it does not specifically limit as the said process, For example, an unevenness | corrugation is formed in the internal peripheral surface of the engaging part 22, or the internal peripheral surface of the engaging part 22 is comprised with a material with high friction resistance like a rubber material. To do.

  Also by such 2nd Embodiment, the effect similar to 1st Embodiment can be exhibited.

  In the present embodiment, the first fixing portion 2 is gripped 981 by positioning the main body 21 below the engaging portions 22 and 23 and lifting the engaging portions 22 and 23 with respect to the grips 981 and 982. , 982, but on the contrary, the main body 21 is positioned above the engaging portions 22, 23, and the engaging portions 22, 23 are gripped and pulled down with respect to 981, 982, so that the first fixing portion 2 may be fixed to 981 and 982. Further, in the engaging portion 22 of the present embodiment, the narrow width portion 222 is located closer to the main body 21 than the wide width portion 221, but on the contrary, the wide width portion 221 is closer to the main body 21 than the narrow width portion 222. May be located. The same applies to the engaging portion 23.

<Third Embodiment>
Next, a third embodiment of the wheelchair connector of the present invention will be described.
FIG. 10 is a cross-sectional view showing a wheelchair connector according to the third embodiment of the present invention.

  Hereinafter, the wheelchair connector of the third embodiment will be described with a focus on differences from the first embodiment described above, and the description of the same matters will be omitted.

  The wheelchair connector of the third embodiment is substantially the same as that of the first embodiment except that the configurations of the first fixing portion and the second fixing portion are different. In addition, since the 1st fixing | fixed part and the 2nd fixing | fixed part are mutually the same structures, below, the 1st fixing | fixed part is demonstrated representatively and the description is abbreviate | omitted about the 2nd fixing | fixed part. To do.

  As shown in FIG. 10, in the 1st fixing | fixed part 2 of this embodiment, the engaging parts 22 and 23 have comprised the cylindrical shape, respectively. Each of the insertion holes 22a and 23a has a truncated cone shape (tapered shape), and the cross-sectional area (opening area) is directed from the distal end side (upper side in the figure) to the proximal end side (lower side in the figure). Gradually decreasing. Further, the width W of the distal end portion of the insertion holes 22a and 23a is wider than the width W1 of the grip 981, and the width W of the proximal end portion is narrower than the width W1 of the grip 981.

  In the first fixing portion 2 of the present embodiment, the grip 981 is press-fitted into the insertion hole 22a from the distal end side of the engagement portion 22, and the grip 982 is press-fitted into the insertion hole 23a from the distal end side of the engagement portion 23. The first wheelchair 9A can be firmly fixed.

  According to the third embodiment, the same effect as that of the first embodiment can be exhibited.

<Fourth embodiment>
Next, a fourth embodiment of the wheelchair connector of the present invention will be described.
FIG. 11 is a plan view showing a wheelchair connector according to the fourth embodiment of the present invention.

  Hereinafter, the wheelchair connector of the fourth embodiment will be described with a focus on differences from the first embodiment described above, and the description of the same matters will be omitted.

  The wheelchair connector of the fourth embodiment is substantially the same as that of the first embodiment except that the configurations of the first fixing portion and the second fixing portion are different. In addition, since the 1st fixing | fixed part and the 2nd fixing | fixed part are mutually the same structures, below, the 1st fixing | fixed part is demonstrated representatively and the description is abbreviate | omitted about the 2nd fixing | fixed part. To do.

  As shown in FIG. 11A, the first fixing portion 2 has a main body 21 and an engaging portion 26 provided on the main body 21. The engaging portion 26 has an insertion hole 26a, and the width W of the insertion hole 26a can be changed (widened or contracted). In such a 1st fixing | fixed part 2, the 1st wheelchair 9A is fixed by letting both the handles 971 and 972 (both grips 981 and 982) of the 1st wheelchair 9A pass through the insertion hole 26a.

  The engaging portion 26 is provided in the outer cylinder 261 which is U-shaped and fixed to the main body 21, the inner cylinder 262 which is U-shaped and inserted into the outer cylinder from both ends thereof, and the outer cylinder 261. And a lock mechanism 263. The lock mechanism 263 can switch between a fixed state in which the inner cylinder 262 is fixed to the outer cylinder 261 and a released state in which the inner cylinder 262 is slidable with respect to the outer cylinder 261. Therefore, the protruding amount of the inner cylinder 262 from the outer cylinder 261 can be changed / adjusted by setting the lock mechanism 263 to the released state, and the protruding amount of the inner cylinder 262 can be fixed by setting the lock mechanism 263 to the fixed state. . The lock mechanism 263 is not particularly limited. For example, the lock mechanism 263 can be configured using a cam lever as in the lock mechanism 43 described in the first embodiment.

  The 1st fixing | fixed part 2 of this embodiment connects the 1st wheelchair 9A as follows. First, the lock mechanism 263 is released, the inner cylinder 262 is sufficiently protruded from the outer cylinder 261, and the insertion hole 26a is sufficiently expanded. Next, the grips 981 and 982 of the handles 971 and 972 are passed through the insertion hole 26a. Next, the inner cylinder 262 is retracted into the outer cylinder 41 until the grips 981 and 982 are held between the outer cylinder 261 and the inner cylinder 262. Next, the lock mechanism 263 is set in a fixed state, and the clamped state is maintained (see FIG. 11B). Thereby, the first wheelchair 9 </ b> A can be firmly fixed to the first fixing portion 2.

  According to the fourth embodiment, the same effect as that of the first embodiment can be exhibited.

  In the present embodiment, the grips 981 and 982 are clamped by the engaging portion 26, but the present invention is not limited to this, and the handles 971 and 972 located on the proximal side from the grips 981 and 982 may be clamped. .

  Moreover, in the engaging part 26 of this embodiment, the inner cylinder 262 may be urged | biased to the outer cylinder 261 side. As a result, an urging force is generated in the direction of narrowing the width of the insertion hole 26a, so that the grips 981 and 982 can be held between the outer cylinder 261 and the inner cylinder 262 more reliably. Although such a configuration is not particularly limited, for example, a coil spring can be disposed in the outer cylinder 261, one end can be fixed to the outer cylinder 261, and the other end can be fixed to the inner cylinder 262. Thereby, the inner cylinder 262 is biased toward the outer cylinder 261 by the contraction force of the spring.

<Fifth Embodiment>
Next, a fifth embodiment of the wheelchair connector of the present invention will be described.
FIG. 12 is a cross-sectional view showing a wheelchair connector according to a fifth embodiment of the present invention.

  Hereinafter, the wheelchair connector of the fifth embodiment will be described with a focus on the differences from the first embodiment described above, and description of similar matters will be omitted.

  The wheelchair connector of the fifth embodiment is substantially the same as the first embodiment except that the configurations of the first fixing portion and the second fixing portion are different. In addition, since the 1st fixing | fixed part and the 2nd fixing | fixed part are mutually the same structures, below, the 1st fixing | fixed part is demonstrated representatively and the description is abbreviate | omitted about the 2nd fixing | fixed part. To do.

  As shown in FIG. 12A, the first fixing portion 2 has a cylindrical main body 21 and an engaging portion 27 provided on the main body 21. The engaging portion 27 includes a first claw portion 271 fixed to the main body 21, a second claw portion 272 slidably provided with respect to the main body 21, and the second claw portion 272 as the first claw. And a coil spring (biasing member) 273 that urges toward the portion 271 side. The main body 21 is formed with a guide hole 218 provided along the axial direction thereof, and is guided by the guide hole 218 so that the second claw portion 272 is located within the range of the guide hole 218 with respect to the main body 21. And slide in the axial direction. The coil spring 273 is disposed in the main body 21, one end thereof is fixed to the main body 21, and the other end is fixed to the second claw portion 272. Although the coil spring 273 is used as the biasing member, the configuration of the biasing member is not particularly limited as long as the second pawl portion 272 can be biased toward the first pawl portion 271. For example, Alternatively, an elastic rubber body may be used.

  The 1st fixing | fixed part 2 of this embodiment connects the 1st wheelchair 9A as follows. First, the second claw portion 272 is grasped, and the second claw portion 272 is opened against the urging force of the coil spring 273. Next, both handles 971 and 972 are positioned between the first and second claw portions 271 and 272. Next, the second claw portion 272 is released, and the handles 971 and 972 are sandwiched between the first claw portion 271 and the second claw portion 272 as shown in FIG. Thereby, the first wheelchair 9 </ b> A can be firmly fixed to the first fixing portion 2.

  According to the fifth embodiment, the same effect as that of the first embodiment can be exhibited.

  In the present embodiment, the handles 971 and 972 are held by the engaging portion 27, but the present invention is not limited to this, and the grips 981 and 982 may be held.

  As mentioned above, although the wheelchair coupler of this invention was demonstrated based on embodiment of illustration, this invention is not limited to these. For example, in the wheelchair connector of the present invention, the configuration of each part can be replaced with any configuration that exhibits the same function, and any configuration can be added. Moreover, you may combine the above-mentioned embodiment suitably.

DESCRIPTION OF SYMBOLS 1 Wheelchair connector 2 1st fixing | fixed part 21 Main body 211 Tongue piece 212 Tongue piece 218 Guide hole 22 Engagement part 22a Insertion hole 221 Wide part 222 Narrow part 23 Engagement part 23a Insertion hole 231 Wide part 232 Narrow part 24 Lock mechanism 241 Body 242 Pin 243 Cam lever 244 Contact plate 25 Lock mechanism 26 Engaging part 26a Insertion hole 261 Outer cylinder 262 Inner cylinder 263 Lock mechanism 27 Engaging part 271 First claw part 272 Second claw part 273 Coil spring 3 First 2 fixed portion 31 body 311 tongue piece 312 tongue piece 32 engaging portion 33 engaging portion 32a insertion hole 33a insertion hole 34 lock mechanism 35 lock mechanism 4 connecting portion 41 outer cylinder 419 slit 42 inner cylinder 43 lock mechanism 431 body 432 pin 433 Cam lever 434 Contact plate 5 First joint 51 shaft pin 52 cam lever 6 second joint 61 shaft pin 62 cam lever 9 wheelchair 9A first wheelchair 9B second wheelchair 91 seating surface 92 backrest 93 foot plate 94 elbow rest 95 caster 96 tire 971 handle 972 handle 981 grip 982 grip

Claims (9)

A first fixing portion having a first engaging portion that engages with a handle of the first wheelchair;
A second fixing portion having a second engaging portion that engages with a handle of the second wheelchair;
A connecting portion disposed between the first fixing portion and the second fixing portion;
A first joint for rotatably connecting the first fixed portion and the connecting portion;
A wheelchair connector comprising: a second joint that rotatably connects the second fixing portion and the connecting portion. A first posture maintaining mechanism for maintaining the posture of the first fixed portion with respect to the connecting portion;
The wheelchair connector according to claim 1, further comprising: a second posture maintaining mechanism that maintains a posture of the second fixing portion with respect to the connecting portion. The first engagement portion has an insertion hole through which the handle of the first wheelchair passes.
The wheelchair connector according to claim 1 or 2, wherein the second engagement portion has an insertion hole through which the handle of the second wheelchair is passed.   4. The wheelchair connector according to claim 3, wherein each of the first engaging portion and the second engaging portion can change a width of the insertion hole. The first engagement portion holds the handle of the first wheelchair,
The wheelchair connector according to any one of claims 1 to 4, wherein the second engagement portion clamps the handle of the second wheelchair.   The wheelchair connector according to claim 3, wherein each of the first engagement portion and the second engagement portion is configured to press-fit the handle into the insertion hole. The first engagement portion has a wide width portion in which the width of the insertion hole is wider than the width of the handle of the first wheelchair, and a narrow width portion narrower than the width of the handle,
The second engaging portion includes a wide portion having a width of the insertion hole wider than a width of the handle of the second wheelchair and a narrow portion narrower than a width of the handle. Item 7. The wheelchair connector according to Item 5 or 6.   The wheelchair connector according to any one of claims 1 to 7, wherein a rotation axis of the first joint and a rotation axis of the second joint are parallel.   The wheelchair connector according to any one of claims 1 to 8, wherein the connecting portion is configured to be extendable and contractible.

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