JP2016147043A - Wheelchair pulling assist tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair pulling assist tool capable of easily attaching/detaching a shaft with respect to a wheelchair and easily changing an angle of the shaft according to a body type of a pulling person.SOLUTION: The wheelchair pulling assist tool includes: shafts 1A and 1B for pulling a wheelchair; and a right/left pair of first attachment members 30 and 40 for detachably attaching the shafts 1A and 1B on at least one of front pipes 102 and 104 and leg pipes 106 and 108 of the wheelchair. The left side first attachment member 30 and the right side first attachment member 40 are configured so as to be inserted with wheelchair attachment parts 14 and 24 of rod bodies 10 and 20 of the shafts 1A and 1B and attach/detach the rod bodies 10 and 20 of the shafts 1A and 1B.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wheelchair pulling assisting tool for pulling and assisting when a wheelchair travels during an emergency evacuation such as a disaster, or when a wheelchair travels on an uneven terrain such as a gravel road or uphill.

  As a wheelchair emergency assisting tool for assisting the traveling movement of the wheelchair at the time of emergency evacuation such as a disaster or the traveling movement of the wheelchair on rough terrain such as a gravel road or uphill, for example, the wheelchair described in Patent Document 1 Mobility aids are known.

  The wheelchair movement support tool of Patent Document 1 includes a pair of left and right attachment members that can be detachably attached to at least one of the left and right front pipes or the left and right leg pipes of the wheelchair, and the pair of attachment members at both ends of the pipe frame. And a provided pipe frame for a club.

  The attachment member is composed of a first member and a second member, and the first member is rotatably attached to the end portion of the rod pipe frame with a shaft connecting the pair of attachment members as a rotation shaft. . On the other hand, the second member is configured to be fitted to at least one of a front pipe or a leg pipe of a wheelchair. The first member and the second member are fixed using a plurality of bolts and nuts.

Utility Model Registration No. 3175732

When an emergency is required, the work of attaching the club to the wheelchair needs to be performed in a short time and reliably.
However, since the wheelchair movement support tool of Patent Document 1 has an integral structure of the first member of the mounting member and the club frame for the club, the work of attaching to and detaching from the left and right front pipes or left and right leg pipes of the wheelchair is not possible. There was a problem of being complicated.

  Furthermore, it is also necessary to have a structure in which the angle of the club is easily changed in a freely rotatable manner with the axis connecting the pair of attachment members as the rotation axis according to the body shape of the person pulling.

  SUMMARY OF THE INVENTION Therefore, a main object of the present invention is to provide a wheelchair tension assisting tool that can be easily attached to and detached from a wheelchair and can be easily changed according to the body shape of the person who pulls the angle of the club. It is.

  A wheelchair tension assisting device according to claim 1 of the present invention is a pair of left and right for removably attaching the club to at least one of a club for pulling a wheelchair, a left and right front pipe and a left and right leg pipe of the wheelchair. A first mounting member, wherein the gripping part is formed at one end of the casing, and the wheelchair mounting part is formed at the other end of the casing, and the first mounting member is formed of the casing of the casing. The wheelchair mounting portion is configured to be inserted, and the frame of the club is configured to be attached / detached by inserting / removing a positioning pin, and the first mounting member is joined to at least one of a front pipe and a leg pipe of the wheelchair. A first connecting member configured to be connected to at least one of a front pipe and a leg pipe of the wheelchair. The first connecting member and the second connecting member are connected to each other with at least one of a front pipe and a leg pipe interposed therebetween, and the first mounting member is connected to the first connecting member. A wheelchair pulling assisting device configured to be able to change an angle formed by a club and a horizontal plane by rotating the member and / or the second connecting member.

  In the present invention, the club is easily attached to and removed from the wheelchair.

  Moreover, since the 1st connection member of a 1st attachment member is comprised so that rotation can be made by using the axis | shaft which connects a pair of 1st attachment members as a rotating shaft, the club pin positioned by the 1st connection member The angle can be easily set.

  The wheelchair pulling assisting tool according to claim 2 of the present invention is a pair of left and right second wheels for supporting the housing of the club, which can be detachably attached to a base pipe that connects the left and right front wheels and rear wheels of the wheelchair. An attachment member, the second attachment member is located at the other end of the housing, and the first attachment member is located between the grip portion of the housing and the second attachment member, The second attachment member includes a third connection member configured to be joined to a base pipe of the wheelchair and a fourth connection member configured to be joined to a base pipe of the wheelchair. The wheelchair tension assist according to claim 1, wherein the member is configured to change an angle formed by the club and the horizontal plane by rotating the third connecting member and / or the fourth connecting member. It is a tool.

A wheelchair pulling assisting device according to claim 3 of the present invention is a pair of left and right second wheels for supporting a housing of the club, which can be detachably attached to a base pipe that connects the left and right front wheels and rear wheels of the wheelchair. A mounting member,
The second mounting member is positioned on the other end side of the housing, and the first mounting member is positioned between the grip portion of the housing and the second mounting member.
The second mounting member comprises a pivot portion configured to pivot the housing at the other end of the housing;
The said 2nd attachment member is comprised so that rotation of a 3rd connection member and / or a 4th connection member can change the angle which a club makes and a horizontal surface, The structure of Claim 1 characterized by the above-mentioned. Is a wheelchair pulling aid.

  In the present invention, since the club is held by the second mounting member in addition to the first mounting member and the club is held at two locations, the mechanical strength of the club becomes high. Therefore, even when mechanical stress perpendicular to the direction in which the club is extended is applied to the club, problems such as bending of the club are unlikely to occur.

  ADVANTAGE OF THE INVENTION According to this invention, the wheelchair tension | pulling assistance tool which can be easily attached or detached with respect to a wheelchair, and can be easily changed according to the body shape of the person who pulls the angle of a clubbar can be obtained.

  The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of embodiments for carrying out the invention with reference to the drawings.

It is a perspective view which shows the wheelchair to which the wheelchair tension | pulling assistance tool which is one Embodiment which concerns on this invention was attached. It is a top view which shows a wheelchair tension assistance tool. It is the perspective view which looked at one 1st attachment member from the seat sheet side. It is the perspective view which looked at one 1st attachment member from the outer side. It is a disassembled perspective view which shows the 1st 1st attachment member. It is the perspective view which looked at the other 1st attachment member from the seat sheet side. It is the perspective view which looked at the other 1st attachment member from the outside. It is the perspective view which looked at the 1st 2nd attachment member from the seat sheet side. It is the perspective view which looked at the 1st 2nd attachment member from the outside. It is a disassembled perspective view which shows one 2nd attachment member. It is the perspective view which looked at the other 2nd attachment member from the seat sheet side. It is the perspective view which looked at the other 2nd attachment member from the outside. It is explanatory drawing which shows the use condition of a wheelchair tension assistance tool. It is a perspective view which shows the procedure which changes the angle of a club. It is a schematic diagram which shows the positional relationship of the 1st connection member of a 1st attachment member, and a 2nd connection member. It is a schematic diagram which shows the positional relationship of the 1st connection member of a 2nd attachment member, and a 2nd connection member. It is a side view solution figure which made a section of a wheelchair tension auxiliary tool a section. It is a side view solution figure which shows the assembly method of the wheelchair tension assistance tool shown in FIG. It is a side view solution figure which shows the assembly method of the wheelchair tension assistance tool shown in FIG. It is a side view solution figure which shows the assembly method of the wheelchair tension assistance tool shown in FIG. It is a perspective view which shows the wheelchair with which the wheelchair tension | pulling assistance tool which is one Embodiment which concerns on this invention was attached. It is a top view which shows a wheelchair tension assistance tool. It is the perspective view which looked at one 1st attachment member from the seat sheet side. It is the perspective view which looked at one 1st attachment member from the outer side. It is a disassembled perspective view which shows the 1st 1st attachment member. It is the perspective view which looked at the other 1st attachment member from the seat sheet side. It is the perspective view which looked at the other 1st attachment member from the outside. It is the perspective view which looked at the 1st 2nd attachment member from the seat sheet side. It is the perspective view which looked at the 1st 2nd attachment member from the outside. It is a disassembled perspective view which shows one 2nd attachment member. It is the perspective view which looked at the other 2nd attachment member from the seat sheet side. It is the perspective view which looked at the other 2nd attachment member from the outside. It is explanatory drawing which shows the use condition of a wheelchair tension assistance tool. It is a perspective view which shows the procedure which changes the angle of a club. It is a schematic diagram which shows the positional relationship of the 1st connection member of a 1st attachment member, a 2nd connection member, and the 3rd connection member of a 2nd attachment member, and a 4th connection member. It is a schematic diagram which shows the positional relationship of the 1st connection member of a 1st attachment member, a 2nd connection member, and the 3rd connection member of a 2nd attachment member, and a 4th connection member. It is a side view solution figure which made a section of a wheelchair tension auxiliary tool a section. It is a side view solution figure which shows the assembly method of the wheelchair tension assistance tool shown in FIG. It is a side view solution figure which shows the assembly method of the wheelchair tension assistance tool shown in FIG. It is a side view solution figure which shows the assembly method of the wheelchair tension assistance tool shown in FIG. It is an illustration figure of embodiment which attached the belt to the club, (A) is a top view solution figure, (B) is a front view solution figure. It is a top view which shows the horizontal bar between clubs. It is explanatory drawing which shows the attachment method of the horizontal bar of a stick stick, (A) is a partially expanded plan view, (B) is a partial sectional view. It is a top view which shows the modification of the horizontal bar between clubs. It is a front view which shows the use condition of a chair with a pulling wheel.

The wheelchair tension assisting tool according to one embodiment of the present invention is a wheelchair tension assisting tool for assisting traveling by pulling the wheelchair during traveling movement of the wheelchair during emergency evacuation such as a disaster.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.

1. Configuration of Wheelchair FIG. 1 is a perspective view showing a wheelchair 100 to which a wheelchair emergency aid 1 is attached. The wheelchair 100 is similar to a commercially available general wheelchair, and the wheelchair emergency aid 1 according to the present invention should be applied to all commercially available general wheelchairs.

Here, the configuration of the wheelchair 100 will be briefly described. The wheelchair 100 to which the present invention is applied is a chair with a vehicle devised for people who are unable to walk, and is similar to a general wheelchair, and thus detailed description thereof is omitted.
In this specification, the front side of the wheelchair is referred to as the pulling side, the left hand as viewed from the front side is referred to as the left side, and the right hand is referred to as the right side.

  The wheelchair 100 generally includes a left front pipe 102 and a right front pipe 104, a left leg pipe 106 and a right leg pipe 108, a seat 110, a left foot plate 112 and a right foot plate 114, and Arm pipe 116 and right arm pipe 118, cross pipe 120, left elbow rest 122 and right elbow rest 124, back band 126, left backrest pipe 128 and right backrest pipe 130, left Grip 132 and right grip 134, left rear wheel (tire) 140 and right rear wheel (tire) 142, left front wheel (caster) 150 and right front wheel (caster) 152, and left base pipe 154 and the right base pipe 156 and the brake lever And over 160, and a brake shoe 162.

The front pipes 102 and 104 are respectively arranged to extend in front of the wheelchair 100 and are connected to front wheels (casters) 150 and 152.
The leg pipes 106 and 108 are for supporting the foot plates 112 and 114, respectively, are projected horizontally from the upper part of the front pipes 102 and 104, and then extend downward in the forward direction, with the tip portion directed forward. It is bent at a right angle. Foot plates 112 and 114 are rotatably attached to the distal ends of the leg pipes 106 and 108, respectively. The foot plates 112 and 114 are for a person using the wheelchair 100 to put their feet on.

  The seat 110 is for a person who uses the wheelchair 100 to sit down, and is disposed between the arm pipe 116 and the arm pipe 118. The cross pipe 120 is for reinforcing the mechanical strength of the lower part of the wheelchair 100. On the upper surfaces of the arm pipes 116 and 118, elbow rests 122 and 124 for a person using the wheelchair 100 to attach an elbow are arranged. A back band 126 is stretched between the backrest pipe 128 and the backrest pipe 130 so that a person using the wheelchair 100 can backrest. The upper portions of the backrest pipes 128 and 130 are bent to be provided with grips 132 and 134. The grips 132 and 134 are for a person who pushes the wheelchair 100 to hold it with his hand and push the wheelchair 100. The grips 132 and 134 are made of a rubber material or the like so as to be easily held by the hand.

  The base pipe 154 is for connecting the rear wheel (tire) 140 and the front wheel (caster) 150, and the front side (pull side) portion thereof extends and is connected to the leg pipe 106. Similarly, the base pipe 156 is for connecting the rear wheel (tire) 142 and the front wheel (caster) 152, and the front side (pull side) portion thereof is connected to the leg pipe 108.

  The brake lever 160 is for stopping the movement of the wheelchair 100, and the brake shoe 162 interlocked with the brake lever 160 presses the outer peripheral surface of the rear wheel (tire) 140 to fix the position of the wheelchair 100. it can.

2. FIG. 2 is a plan view showing the wheelchair emergency assistance tool 1. The wheelchair emergency aid 1 includes a left club 1A and a right club 1B for pulling the wheelchair 100, and at least one of the left and right front pipes 102 and front pipes 104 and the left and right leg pipes 106 and leg pipes 108 of the wheelchair 100. A pair of left and right first mounting members 30 and a first mounting member 40 for detachably mounting the club 1A and the club 1B are provided.
The wheelchair emergency assistance tool 1 includes a depression angle adjusting mechanism for changing the angle between the club 1A and club 1B and the horizontal plane.
As for the said stick 1A and the stick 1B, the grip part 12 and the grip part 22 are formed in the one end part of the housing 10 and the housing 20, and the wheelchair attachment part 14 and the wheelchair attachment part 24 are on the other end side of the housing 10 and the chassis 20. Is formed.
The left first mounting member 30 and the right first mounting member 40 are configured to pass through the chassis 10 of the club 1A and club 1B, the wheelchair mounting part 14 and the wheelchair mounting part 24 of the chassis 20, and The rod 10 and rod 20 of the rod 1A and rod 1B are configured to be attached and detached by inserting and removing the positioning pins 304.
The first attachment member 30 and the first attachment member 40 are connected to at least one of the front pipe 102, the front pipe 104, the leg pipe 106, and the leg pipe 108 of the wheelchair 100. 1 connecting member 400 and the second connecting member 302 and the second connecting member 402 configured to be joined to at least one of the front pipe 102 and the front pipe 104 and the leg pipe 106 and the leg pipe 108 of the wheelchair 100. .
The first connecting member 300 and the first connecting member 400 and the second connecting member 302 and the second connecting member 402 sandwich the front pipe 102, the front pipe 104, and the leg pipe 106 and the leg pipe 108, respectively. It is connected.
The wheelchair emergency assistance tool 1 includes a depression suppression angle changing member that constitutes a depression suppression adjustment mechanism.
The first attachment member 30 and the first attachment member 40 constitute a depression angle changing member, and the first connection member 300, the first connection member 400 and / or the second connection member 302, and the second connection member 402. The angle between the horizontal bar 1A and the horizontal bar 1B and the horizontal plane can be changed by relative rotation.

The wheelchair emergency aid 1 includes a pivot member that constitutes a depression angle adjusting mechanism.
The wheelchair emergency aid 1 is detachably attachable to the left base pipe 154 and the right base pipe 164 that connect the left and right front wheels and the rear wheel of the wheelchair 100, and the housing 10 of the club 1A and club 1B. A pair of left and right second mounting members 50 and second mounting members 60 for supporting the housing 20 are further provided.
The second mounting member 50 on the left side and the second mounting member 60 on the right side are located at the other ends of the housing 10 and the housing 20, and the first mounting member 30 and the first mounting member 40 are connected to the housing 10 and the housing 10. It is located between the grip part 12 and the grip part 22 of the housing 20 and the second attachment member 50 and the second attachment member 60.
The second attachment member 50 and the second attachment member 60 are configured to be joined to the base pipe 154 and the base pipe 164 of the wheelchair 100, and the base of the wheelchair 100. The fourth connecting member 502 and the fourth connecting member 602 are configured to be joined to the pipe 154 and the base pipe 164.
The second mounting member 50 and the second mounting member 60 constitute a depression angle changing member, and the third connecting member 500 and the third connecting member 600 and / or the fourth connecting member 502 and the fourth connecting member 602. Is rotated so that the angle between the horizontal bar 1A and the horizontal bar 1B and the horizontal plane can be changed.
The second attachment members 50 and 60 may be omitted depending on the specifications of the wheelchair emergency aid 1.

(A) Rods The pair of left and right rods 1A and rods 1B have the same shape and size. The left club 1 </ b> A and the right club 1 </ b> B include a chassis 10 and a chassis 20, a grip part 12 and a grip part 22, a wheelchair attachment part 14, a wheelchair attachment part 24, and protection parts 18 and 28, respectively. The casing 10 and the casing 20 made of aluminum or the like have a length of, for example, 1 m to 2 m, and are pipes having a circular cross section in order to reduce weight and increase mechanical strength.
The left club 1 </ b> A and the right club 1 </ b> B are attached to the left and right sides of the wheelchair 100 with an interval slightly longer than the width of the wheelchair 100, that is, the width of the seat 110.

  The substantially cylindrical grip portions 12 and 22 are provided so as to cover one end portions (end portions on the pulling side) of the casings 10 and 20 having a circular cross section.

The other end portion (the end portion on the wheelchair side) of the casing 10 of the left club 1 </ b> A is inserted into one (left side) second attachment member 50. The wheelchair 10 is formed with a wheelchair mounting portion 14 near the center thereof, and the wheelchair mounting portion 14 between the grip portion 12 of the housing 10 and the second mounting member 50 is inserted into the first mounting member 30 and mounted. .
A pair of upper and lower through holes 16a and 16b for inserting positioning pins 304 (described later) are formed on the upper side and the lower side of the outer peripheral surface of the housing 10 at positions where the first mounting member 30 of the housing 10 is to be disposed. Has been. The through-holes 16a and 16b are formed so that the respective axis centers are on the same axis.

The other end (wheelchair side end) of the case 20 of the right club 1B is inserted into the other (right side) second attachment member 60. The chassis 10 is formed with a wheelchair mounting portion 24 near the center thereof, and the wheelchair mounting portion 24 between the grip portion 22 of the housing 20 and the second mounting member 60 is inserted into the first mounting member 40 and mounted. The
A pair of upper and lower through holes 26a and 26b for inserting positioning pins 404 (described later) are formed on the upper side and the lower side of the outer peripheral surface of the housing 20 at positions where the first mounting member 40 of the housing 20 is to be disposed. Has been. The through-holes 26a and 26b have respective axes that are formed on the same axis.

In use, the club 1 </ b> A and club 1 </ b> B are attached to the wheelchair 100 only by being inserted through the first mounting portion 30 and the first mounting portion 40 that are previously mounted on the wheelchair 100.
The club 1 </ b> A and the club 1 </ b> B are attached to the wheelchair 100 so as to have a line-symmetric positional relationship with respect to the central axis C of the wheelchair 100.
Furthermore, the clubs 1A and 1B are in a state of being inclined downwardly in a straight line toward the side of the protective parts 18 and 28 (wheelchair side), with the grip parts 12 and 22 side (pull side) facing upward. Attached to the wheelchair 100.

  Moreover, the substantially hemispherical-shaped protection part 18 and the protection part 28 are provided so that the other end part (end part by the side of a wheelchair) of the housings 10 and 20 may be covered. Since the protection part 18 and the protection part 28 are substantially semicircular, the wheelchair, the ground, and the floor are hardly damaged even when the other ends of the clubs 1A, 1B collide with the wheelchair, the ground, and the floor. The protection part 18 and the protection part 28 are made of an elastic rubber material or resin material. The grip portions 12 and 22 are made of a rubber material or a resin material so that a person who pulls the wheelchair 100 can easily grip the wheelchair 100 with a hand.

(B) First Attachment Member The pair of left and right first attachment members 30 and 40 can be detachably attached to at least one of the left and right front pipes 102 and 104 and the left and right leg pipes 106 and 108 of the wheelchair 100. In the first attachment member 30, the first connection member 300 and the second connection member 302 are connected to each other with the leg pipe 106 interposed therebetween, and the leg pipe 106 is tightened to be attached to the leg pipe 106.
In the first mounting member 40, the first connecting member 400 and the second connecting member 402 are connected to face each other with the front pipe 108 interposed therebetween, and the leg pipe 108 is fastened and attached to the leg pipe 108.
The first attachment member 30 on the left side and the first attachment member 40 on the right side are usually attached to the wheelchair 100 at the same height position.
Normally, the club 1 </ b> A and club 1 </ b> B removed from the first mounting member 30 and the first mounting member 40 are inserted into the first mounting member 30 and the first mounting member 40 in an emergency, etc. It is attached.
In the present embodiment, the case where the first attachment members 30 and 40 are attached to the leg pipes 106 and 108 will be described as an example.
The club insertion portion 310 for the club extends in the radial direction of the disk-shaped first connection member 300 and rotates around the center (center axis L) of the circular first connection member 300 as will be described later. The angle (elevation angle, θ shown in FIG. 13) formed with the ground contact surface of the wheelchair 100 can be changed as appropriate.

(I) First mounting member 30
FIG. 3 is a perspective view of the first mounting member 30 as viewed from the seat side. FIG. 4 is a perspective view of the first mounting member 30 as viewed from the outside. FIG. 5 is an exploded perspective view showing the first mounting member 30.
The left first attachment member 30 includes a first connection member 300 disposed on the seat seat side, a second connection member 302 disposed outside the leg pipe 106, and a positioning pin 304. .
The first connecting member 300 and the second connecting member 302 are fastened to the leg pipe 106 and combined using four sets of bolts 326, 328, 330, 332 and nuts 327, 329, 331, 333. Are connected.

  The first connecting member 300 has a disk shape, and a cylindrical rod insertion portion 310 for a rod that protrudes in a convex shape toward the seat is formed at the center. The club insertion portion 310 for the rod extends through the central portion of the first connecting member 300 and extends from one outer edge of the first connecting member 300 to the other outer edge. The extending direction of the club insertion portion 310 for the club is parallel to the direction in which the club 1A extends (direction a in FIG. 3) and is substantially the same axis as the axis of the club 1A.

  The cross section of the rod insertion portion 310 for the rod is a semi-ellipse, and the inner diameter dimension is set larger than the outer diameter of the rod 10 of the rod 1A. Therefore, in the first connecting member 300, the rod 1A is inserted into the rod rod body even when the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 are loosened or tightened. The inside of the part 310 can be inserted.

  Further, a pair of upper and lower through-holes 340 and 342 for inserting the positioning pins 304 are formed in the upper and lower portions of the outer peripheral surface of the rod rod insertion portion 310. The pair of upper and lower through holes 340 and 342 are formed so that the axis is on the same axis as the axis of the pair of upper and lower through holes 16 a and 16 b of the housing 10.

  The first connecting member 300 is formed with a pair of opposing arc-shaped movable range restricting long holes 312 and 314 having concentric circles at the center of the first connecting member 300 with the rod insertion member 310 interposed therebetween. Yes. A bolt 326 is inserted into one end of the movable range restriction long hole 312 and a bolt 332 is inserted into the other end. A bolt 328 is inserted into one end of the movable range restriction long hole 314, and a bolt 330 is inserted into the other end. The movable range regulating long holes 312 and 314 provide a rotation range between the first connecting member 300 and the second connecting member 302 that are combined by bolts 326, 328, 330, and 332 and nuts 327, 329, 331, and 333. It is for regulation. The hole diameters of the movable range restriction long holes 312 and 314 are set to be slightly larger than the diameters of the bolts 326, 328, 330, and 332, and the bolts 326, 328, 330, and 332 smoothly pass through the movable range restriction long holes 312 and 314. It is configured to be able to move to.

  On the other hand, the second connecting member 302 on the right side has substantially the same shape and size as the first connecting member 300. The second connecting member 302 is configured to be fitted to at least one of the front pipe 102 and the leg pipe 106 of the wheelchair 100. In the present embodiment, the case where the second connecting member 302 is attached to the leg pipe 106 will be described as an example.

  The second connecting member 302 has a disk shape, and a cylindrical leg pipe fitting portion 320 that protrudes outward in the central portion is formed. The leg pipe fitting portion 320 extends from one outer edge of the second connecting member 302 to the other outer edge through the central portion of the second connecting member 302. The extending direction of the leg pipe fitting portion 320 is parallel to the direction in which the leg pipe 106 extends (direction b in FIG. 3), and is substantially the same axis as the axis of the leg pipe 106. The leg pipe fitting portion 320 is in a positional relationship that is substantially orthogonal to the rod rod housing insertion portion 310 of the first connecting member 300.

  The cross section of the leg pipe fitting part 320 is semi-oval, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the leg pipe 106. Accordingly, when the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 are loosened, the second connecting member 302 allows the leg pipe 106 to pass through the leg pipe fitting portion 320. Can do. When the second connecting member 302 is tightened by the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333, the leg pipe 106 is fitted to the leg pipe fitting portion 320, The first attachment member 30 is fixed to the leg pipe 106.

  Further, the second connecting member 302 has a pair of opposing arc-shaped movable range restricting long holes 322 and 324 formed concentrically with the center of the second connecting member 302 with the leg pipe fitting portion 320 in between. Yes. A bolt 326 is inserted into one end of the movable range restriction long hole 322, and a bolt 328 is inserted into the other end. A bolt 332 is inserted into one end of the movable range restriction long hole 324, and a bolt 330 is inserted into the other end. The movable range restricting long holes 322 and 324 provide a rotation range between the first connecting member 300 and the second connecting member 302 combined by bolts 326, 328, 330 and 332 and nuts 327, 329, 331 and 333. It is for regulation. The hole diameters of the movable range restriction long holes 322 and 324 are set to be slightly larger than the diameters of the bolts 326, 328, 330, and 332, and the bolts 326, 328, 330, and 332 smoothly move the movable range restriction long holes 322 and 324. It is configured to be movable. The movable range restriction long holes 322 and 324 are in a positional relationship substantially perpendicular to the movable range restriction long holes 312 and 314 of the first connecting member 300.

In the first connecting member 300 and the second connecting member 302, the surface 301 on the side where the rod insertion portion 310 for the club is not projected and the surface 303 on the side where the leg pipe fitting portion 320 is not projected are brought into contact with each other. It is piled up in the state which did. The center of the first connecting member 300 and the center of the second connecting member 302 exist on the central axis L (shown in FIG. 5) of the first mounting member 30. The pair of arc-shaped movable range restricting long holes 312 and 314 of the first connecting member 300 and the pair of arc-shaped movable range restricting long holes 322 and 324 of the second connecting member 302 are the first mounting member 30. Are arranged in the same circle centered on the central axis L. Moreover, the 1st connection member 300 and the 2nd connection member 302 are combined in the state which mutually shifted substantially 90 degrees.
The first connecting member 300 and the second connecting member 302 are combined so as to extend in a direction in which the rod rod insertion portion 310 of the first connecting member 300 and the leg fitting portion 320 of the second connecting member 302 intersect. It is.
The movable range restriction long hole 312 and the movable range restriction long hole 314 of the first connecting member 300 extend in a direction intersecting with the movable range restriction long hole 322 and the movable range restriction long hole 324 of the second connection member 302.
As shown in FIG. 15, the pair of arc-shaped movable range restriction long holes 312 and 314 of the first connecting member 300 and the pair of arc-shaped movable range restriction long holes 322 and 324 of the second connecting member 302 are Both ends overlap each other. Bolts 326, 328, 330, and 332 are inserted into the overlapping ranges R1, R2, R3, and R4, respectively.

  Between the bolt 326 and the bolt 328 and between the bolt 330 and the bolt 332, a rod insertion member 310 is disposed. A leg pipe fitting portion 320 is disposed between the bolt 326 and the bolt 332 and between the bolt 328 and the bolt 330. Accordingly, since the four bolts 326, 328, 330, and 332 are arranged at substantially equal intervals on the edge of the first mounting member 30, the mechanical strength of the first mounting member 30 is increased.

The first connecting member 300 has a central axis L (shown in FIG. 5) of the first mounting member 30 when the four sets of bolts 326, 328, 330, 332 and nuts 327, 329, 331, 333 are loosened. As a rotation axis, the surface 301 and the surface 303 that are in surface contact with each other can be relatively slid and rotated in the direction c shown in FIG. In other words, the first connecting member 300 is rotatable together with the club 1A about the axis Q1 (shown in FIG. 2) connecting the pair of first mounting members 30 and 40 as a rotation axis. However, the rotatable range is limited to the ranges R1, R2, R3, and R4 where the movable range restriction long holes 312 and 314 and the movable range restriction long holes 322 and 324 overlap. Furthermore, when the bolts 326, 328, 330, and 332 and the nuts 327, 329, 331, and 333 are loosened, the first mounting member 30 is also in the direction in which the leg pipe 106 extends (direction b in FIG. 3). It is movable. The axis Q1 is orthogonal to the clubs 1A and 1B. Further, the surface 301 and the surface 303 that are in surface contact with each other are orthogonal to the axis Q1 and parallel to the club 1A. The axial centers 326a, 328a, 330a, 332a of the bolts 326, 328, 330, 332 are orthogonal to the surfaces 301, 303 and the rod 1A.
The first connecting member 300 and the second connecting member 302 rotate relative to each other, and the leg pipe fitting portion 320 of the second connecting member 302 attached to the leg pipe 106 and the rod insertion member insertion portion of the first connecting member 300 The angle formed with 310 can be changed.

  The positioning pin 304 includes an annular head part 304a and a cylindrical body part 304b. The positioning pin 304 has a cylindrical body portion 304b on the lower side, and a pair of upper and lower through holes 340 and 342 of the rod rod housing insertion portion 310 whose axis is formed on the same axis from the upper and lower sides of the housing 10. The pair of through holes 16a and 16b are inserted. When the annular head portion 304a of the positioning pin 304 is locked by the through hole 340, the rod 1A is positioned on the rod insertion portion 310 (first connecting member 300).

(Ii) First mounting member 40
FIG. 6 is a perspective view of the first mounting member 40 as viewed from the seat side. FIG. 7 is a perspective view of the first mounting member 40 as viewed from the outside. The first attachment member 40 is the same as the first attachment member 30, and the first connection member 400 on the right side disposed on the seat seat side and the second connection member disposed on the outside with the leg pipe 108 interposed therebetween. 402 and positioning pins 404.
The first connecting member 400 and the second connecting member 402 are fastened to the leg pipe 108 using four sets of bolts 426, 428, 430, 432 and nuts 427, 429, 431, 433, and combined. It is connected.

The first connecting member 400 has a disc shape, and has a cylindrical rod insertion portion 410 that protrudes in a convex manner toward the seat in the center portion. The club insertion portion 410 for the rod extends through the central portion of the first connecting member 400 and extends from one outer edge of the first connecting member 400 to the other outer edge. The extending direction of the club insertion portion 410 for the club is parallel to the direction in which the club 1B extends (direction a in FIG. 6), and is substantially the same axis as the axis of the club 1B.
The club insertion portion 410 for the club extends in the radial direction of the disk-shaped first connecting member 400 and, as will be described later, when rotated about the center (central axis L) of the circular first connecting member 400 The angle (elevation angle, θ shown in FIG. 13) formed with the ground contact surface of the wheelchair 100 can be changed as appropriate.

  The cross section of the rod insertion portion 410 for the club is a semi-oval, and the inner diameter is set larger than the outer diameter of the cabinet 20 of the club 1B. Therefore, in the first connecting member 400, the rod 1B is inserted into the rod rod body even when the bolts 426, 428, 430, 432 and the nuts 427, 429, 431, 433 are loosened or tightened. The portion 410 can be inserted.

  Further, a pair of upper and lower through-holes 440 and 442 for inserting the positioning pins 404 are formed in the upper and lower portions of the outer peripheral surface of the rod rod insertion portion 410. The pair of upper and lower through holes 440 and 442 are formed so that the axis is on the same axis as the axis of the pair of upper and lower through holes 26 a and 26 b of the housing 20.

  The first connecting member 400 is formed with a pair of arc-shaped movable range restricting long holes 412 and 414 facing each other with the center of the first connecting member 400 being concentric with the rod insertion portion 410 for the rod. Yes. A bolt 426 is inserted into one end of the movable range restriction long hole 412, and a bolt 432 is inserted into the other end. A bolt 428 is inserted into one end of the movable range restriction long hole 414, and a bolt 430 is inserted into the other end. The movable range restricting long holes 412 and 414 provide a rotation range between the first connecting member 400 and the second connecting member 402 that are combined by bolts 426, 428, 430, and 432 and nuts 427, 429, 431, and 433. It is for regulation. The hole diameters of the movable range restriction long holes 412 and 414 are set slightly larger than the diameters of the bolts 426, 428, 430, and 432, and the bolts 426, 428, 430, and 432 smoothly move in the movable range restriction long holes 412 and 414. It is configured to be able to move to.

  On the other hand, the second connecting member 402 has substantially the same shape and size as the first connecting member 400. The second connecting member 402 is configured to fit into at least one of the front pipe 104 and the leg pipe 108 of the wheelchair 100. In the present embodiment, the case where the second connecting member 402 is attached to the leg pipe 108 will be described as an example.

  The second connecting member 402 has a disk shape, and a cylindrical leg pipe fitting portion 420 that protrudes outward in the center is formed. The leg pipe fitting portion 420 extends from one outer edge of the second connecting member 402 to the other outer edge through the center portion of the second connecting member 402. The extending direction of the leg pipe fitting part 420 is parallel to the direction in which the leg pipe 108 extends (direction b in FIG. 6), and is substantially the same axis as the axis of the leg pipe 108. The leg pipe fitting portion 420 is in a positional relationship that is substantially orthogonal to the rod rod housing insertion portion 410 of the first connecting member 400.

  The cross section of the leg pipe fitting portion 420 is semi-oval, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the leg pipe 108. Accordingly, when the bolts 426, 428, 430, and 432 and the nuts 427, 429, 431, and 433 are loosened, the second connecting member 402 allows the leg pipe 108 to pass through the leg pipe fitting portion 420. Can do. When the second connecting member 402 is tightened by the bolts 426, 428, 430, 432 and the nuts 427, 429, 431, 433, the leg pipe 108 is fitted to the leg pipe fitting portion 420, The first attachment member 40 is fixed to the leg pipe 108.

  Further, the second connecting member 402 has a pair of opposing arc-shaped movable range restricting long holes 422 and 424 formed concentrically with the center of the second connecting member 402 with the leg pipe fitting portion 420 in between. Yes. A bolt 426 is inserted into one end portion of the movable range regulating long hole 422, and a bolt 428 is inserted into the other end portion. A bolt 432 is inserted into one end portion of the movable range restriction long hole 424, and a bolt 430 is inserted into the other end portion. The movable range restricting long holes 422 and 424 provide a rotation range between the first connecting member 400 and the second connecting member 402 that are combined by bolts 426, 428, 430, and 432 and nuts 427, 429, 431, and 433. It is for regulation. The hole diameters of the movable range restriction long holes 422 and 424 are set slightly larger than the diameters of the bolts 426, 428, 430, and 432, and the bolts 426, 428, 430, and 432 smoothly move the movable range restriction long holes 422 and 424. It is configured to be movable. The movable range restriction long holes 422 and 424 are in a positional relationship substantially perpendicular to the movable range restriction long holes 412 and 414 of the first connecting member 400.

In the first connecting member 400 and the second connecting member 402, the surface 401 on the side where the rod insertion portion 410 does not protrude and the surface 403 on the side where the leg pipe fitting portion 420 does not protrude are brought into contact with each other. It is piled up in the state which did. The center of the first connecting member 400 and the center of the second connecting member 402 exist on the central axis L of the first mounting member 40. The pair of arc-shaped movable range restricting long holes 412 and 414 of the first connecting member 400 and the pair of arc-shaped movable range restricting long holes 422 and 424 of the second connecting member 402 are the first mounting member 40. Are arranged in the same circle centered on the central axis L. Moreover, the 1st connection member 400 and the 2nd connection member 402 are combined in the state which mutually shifted substantially 90 degrees.
The first connecting member 400 and the second connecting member 402 are combined so as to extend in the direction in which the rod insertion member 410 for the rod of the first connecting member 400 and the leg fitting portion 420 of the second connecting member 402 intersect. It is.
The movable range restriction long hole 412 and the movable range restriction long hole 414 of the first connection member 400 extend in a direction intersecting the movable range restriction long hole 422 and the movable range restriction long hole 424 of the second connection member 402.
Similarly to FIG. 15, the pair of arc-shaped movable range restricting long holes 412 and 414 of the first connecting member 400 and the pair of arc-shaped movable range restricting long holes 422 and 424 of the second connecting member 402 are mutually connected. The two ends overlap each other. Bolts 426, 428, 430, and 432 are inserted into the overlapping ranges R1, R2, R3, and R4, respectively.

  Between the bolt 426 and the bolt 428 and between the bolt 430 and the bolt 432, a rod insertion member 410 is disposed. A leg pipe fitting portion 420 is disposed between the bolt 426 and the bolt 432 and between the bolt 428 and the bolt 430. Accordingly, since the four bolts 426, 428, 430, and 432 are disposed at substantially equal intervals on the edge of the first mounting member 40, the mechanical strength of the first mounting member 40 is increased.

Then, when the four sets of bolts 426, 428, 430, and 432 and the nuts 427, 429, 431, and 433 are loosened, the first connecting member 400 uses the central axis L of the first mounting member 40 as the rotation axis. The surface 401 and the surface 403 that are in surface contact with each other can be relatively slid and rotated in the direction c shown in FIG. In other words, the first connecting member 400 is rotatable together with the club 1B with the axis connecting the pair of first mounting members 30 and 40 as a rotation axis Q1 (shown in FIG. 2). However, the rotatable range is limited to the ranges R1, R2, R3, and R4 where the movable range restriction long holes 412 and 414 and the movable range restriction long holes 422 and 424 overlap. Further, when the bolts 426, 428, 430, and 432 and the nuts 427, 429, 431, and 433 are loosened, the first mounting member 40 also extends in the direction in which the leg pipe 108 extends (direction b in FIG. 6). It is movable. The surface 401 and the surface 403 that are in surface contact with each other are orthogonal to the axis Q1 and parallel to the club 1B. The axial centers 426a, 428a, 430a, and 432a of the bolts 426, 428, 430, and 432 are orthogonal to the surfaces 401 and 403 and the club 1B.
The first connecting member 400 and the second connecting member 402 rotate relative to each other, and the leg pipe fitting portion 420 of the second connecting member 402 attached to the leg pipe 106 and the rod insertion member insertion portion of the first connecting member 400 The angle formed with 410 can be changed.

  The positioning pin 404 includes an annular head 404a and a cylindrical body 404b. The positioning pin 404 has a cylindrical body portion 404b on the lower side, and a pair of upper and lower through holes 440 and 442 and a vertical direction of the housing 20 from the upper side of the shaft insertion portion 410 for the shaft that is formed on the same axis from above. The pair of through holes 26a and 26b are inserted. Then, when the annular head 404a of the positioning pin 404 is locked by the through hole 440, the club 1B is positioned on the club insertion part 410 (first connecting member 400).

(C) Second mounting member The pair of left and right second mounting members 50 and 60 are attached to and detached from base pipes 154 and 156 that connect the left and right front wheels (casters) 150 and 152 and the rear wheels (tires) 140 and 142 of the wheelchair 100. It can be attached freely.

(I) Second mounting member 50
FIG. 8 is a perspective view of the second mounting member 50 as viewed from the seat side. FIG. 9 is a perspective view of the second mounting member 50 as viewed from the outside. FIG. 10 is an exploded perspective view showing the second mounting member 50. The 2nd attachment member 50 is comprised by the 3rd connection member 500 arrange | positioned at the seat sheet side, and the 4th connection member 502 arrange | positioned on the outer side. The third connecting member 500 and the fourth connecting member 502 are tightened and combined using four sets of bolts 526, 528, 530, 532 and nuts 527, 529, 531, 533.

The third connecting member 500 has a disc shape, and a cylindrical rod insertion portion 510 for a cylindrical rod projecting in a convex shape toward the seat is formed at the center. The club insertion portion 510 for the rod extends through the central portion of the third connecting member 500 and extends from one outer edge of the third connecting member 500 to the other outer edge. The extending direction of the club insertion portion 510 for the club is parallel to the direction in which the club 1A extends (direction a in FIG. 8) and is substantially the same axis as the axis of the club 1A.
The club insertion portion 510 for the club extends in the radial direction of the disk-shaped first connecting member 500 and rotates around the center (center axis L) of the circular first connecting member 500 as will be described later. The angle (elevation angle, θ shown in FIG. 13) formed with the ground contact surface of the wheelchair 100 can be changed as appropriate.

  The cross section of the rod insertion portion 510 for the rod is a half oval, and the inner diameter is set larger than the outer diameter of the rod 10 of the rod 1A. Accordingly, in the third connecting member 500, the rod 1A is inserted into the rod rod body even when the bolts 526, 528, 530, 532 and the nuts 527, 529, 531, 533 are loosened or tightened. The portion 510 can be inserted.

  The third connecting member 500 is formed with a pair of arc-shaped movable range restricting long holes 512 and 514 facing each other with the center of the third connecting member 500 being concentric with the rod insertion portion 510 for the rod. Yes. A bolt 526 is inserted into one end of the movable range restriction long hole 512, and a bolt 532 is inserted into the other end. A bolt 528 is inserted into one end of the movable range restriction long hole 514, and a bolt 530 is inserted into the other end. The movable range restricting long holes 512 and 514 provide a rotation range between the third connecting member 500 and the fourth connecting member 502 that are combined by bolts 526, 528, 530, and 532 and nuts 527, 529, 531, and 533. It is for regulation. The hole diameters of the movable range restriction long holes 512 and 514 are set slightly larger than the diameters of the bolts 526, 528, 530, and 532, and the bolts 526, 528, 530, and 532 smoothly pass through the movable range restriction long holes 512 and 514. It is configured to be able to move to.

  On the other hand, the fourth connecting member 502 has substantially the same shape and size as the third connecting member 500. The fourth connecting member 502 is configured to fit into the base pipe 154 of the wheelchair 100. The fourth connecting member 502 has a disk shape, and a cylindrical base pipe fitting portion 520 that protrudes outward is formed at the center. The base pipe fitting part 520 extends from one outer edge of the fourth connecting member 502 to the other outer edge through the center of the fourth connecting member 502. The extending direction of the base pipe fitting portion 520 is parallel to the direction in which the base pipe 154 extends (the b direction in FIG. 8), and is substantially the same axis as the axis of the base pipe 154. The base pipe fitting portion 520 is in a positional relationship that is obliquely crossed with the rod rod insertion portion 510 of the third connecting member 500.

  The cross section of the base pipe fitting portion 520 is semi-oval, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the base pipe 154. Therefore, when the bolts 526, 528, 530, 532 and the nuts 527, 529, 531, 533 are loosened, the third connecting member 500 and the fourth connecting member 502 are fitted with the base pipe 154. The inside of the part 520 can be inserted. When the third connecting member 500 and the fourth connecting member 502 are tightened by the bolts 526, 528, 530, 532 and the nuts 527, 529, 531, 533, the base pipe 154 is fitted into the base pipe. The second mounting member 50 is fixed to the base pipe 154 by being fitted to the portion 520.

  The fourth connecting member 502 is formed with a pair of opposing arc-shaped movable range restricting long holes 522 and 524 with the center of the fourth connecting member 502 being concentric with the base pipe fitting portion 520 interposed therebetween. Yes. A bolt 526 is inserted into one end of the movable range restriction long hole 522, and a bolt 528 is inserted into the other end. A bolt 532 is inserted into one end of the movable range restriction long hole 524, and a bolt 530 is inserted into the other end. The movable range restricting long holes 522 and 524 provide a rotation range between the third connecting member 500 and the fourth connecting member 502 that are combined by bolts 526, 528, 530, and 532 and nuts 527, 529, 531, and 533. It is for regulation. The hole diameters of the movable range restriction long holes 522 and 524 are set to be slightly larger than the diameters of the bolts 526, 528, 530, and 532, and the bolts 526, 528, 530, and 532 smoothly move the movable range restriction long holes 522 and 524. It is configured to be movable. The movable range restriction long holes 522 and 524 are in a positional relationship obliquely with the movable range restriction long holes 512 and 514 of the third connecting member 500.

In the third connecting member 500 and the fourth connecting member 502, the surface 501 on the side where the rod insertion portion 510 for the club is not projected and the surface 503 on the side where the base pipe fitting portion 520 is not projected are brought into contact with each other. It is piled up in the state which did. The center of the third connecting member 500 and the center of the fourth connecting member 502 exist on the central axis (L in FIG. 10) of the second mounting member 50. The pair of arc-shaped movable range restricting long holes 512 and 514 of the third connecting member 500 and the pair of arc-shaped movable range restricting long holes 522 and 524 of the fourth connecting member 502 are the second mounting member 50. Are arranged in the same circle centered on the central axis L. Moreover, the 3rd connection member 500 and the 4th connection member 502 are combined in the state which mutually shifted | deviated a little.
The third connecting member 500 and the fourth connecting member 502 extend in a direction in which the rod insertion rod insertion portion 510 of the third connecting member 500 intersects with the front and rear leg connecting rod fitting portions 520 of the fourth connecting member 502. , Combined.
As shown in FIG. 16, the pair of arc-shaped movable range restriction long holes 512 and 514 of the third connecting member 500 and the pair of arc-shaped movable range restriction long holes 522 and 524 of the fourth connecting member 502 are Each central part overlaps each other. Bolts 526, 528, 530, and 532 are inserted through the overlapping ranges R5 and R6, respectively.

  Between the bolt 526 and the bolt 528 and between the bolt 530 and the bolt 532, a rod insertion member 510 for the rod is provided. A base pipe fitting portion 520 is disposed between the bolt 526 and the bolt 532 and between the bolt 528 and the bolt 530. Accordingly, since the four bolts 526, 528, 530, and 532 are disposed at substantially equal intervals on the edge of the second mounting member 50, the mechanical strength of the second mounting member 50 is increased.

The third connecting member 500 has a central axis L (shown in FIG. 10) of the second mounting member 50 when the four sets of bolts 526, 528, 530, and 532 and the nuts 527, 529, 531, and 533 are loosened. 8 can be rotated in the c direction shown in FIG. 8 by relatively sliding the surfaces 501 and 503 in contact with each other. In other words, the third connecting member 500 is rotatable together with the club 1A about the axis Q2 (shown in FIG. 2) connecting the pair of second mounting members 50 and 60 as a rotation axis. However, the rotatable range is limited to the ranges R5 and R6 where the movable range restriction long holes 512 and 514 and the movable range restriction long holes 522 and 524 overlap. Further, when the bolts 526, 528, 530, 532 and the nuts 527, 529, 531, 533 are loosened, the second mounting member 50 also moves in the direction in which the base pipe 154 extends (direction b in FIG. 8). Is possible. The axis Q2 is orthogonal to the clubs 1A and 1B. Further, the surface 501 and the surface 503 that are in surface contact with each other are orthogonal to the axis Q2 and parallel to the club 1A. The axial centers 526a, 528a, 530a, and 532a of the bolts 526, 528, 530, and 532 are orthogonal to the surfaces 501 and 503 and the club 1A.
The first connecting member 500 and the second connecting member 502 are rotated relative to each other so that the leg pipe fitting portion 520 of the second connecting member 502 attached to the leg pipe 106 and the rod insertion member insertion portion of the first connecting member 500 The angle formed with 510 can be changed.

(Ii) Second mounting member 60
FIG. 11 is a perspective view of the second mounting member 60 viewed from the seat side. FIG. 12 is a perspective view of the second mounting member 60 as viewed from the outside. The second attachment member 60 is the same as the second attachment member 50, and includes a third connection member 600 disposed on the seat seat side and a fourth connection member 602 disposed on the outside. The third connecting member 600 and the fourth connecting member 602 are tightened and combined using four sets of bolts 626, 628, 630, 632 and nuts 627, 629, 631, 633.

The 3rd connection member 600 is disk shape, and the cylindrical rod insertion body insertion part 610 which protruded in the center part at the seat seat side convexly is formed. The club insertion portion 610 for the club extends through the central portion of the third connecting member 600 and extends from one outer edge of the third connecting member 600 to the other outer edge. The extending direction of the rod insertion portion 610 for the rod is parallel to the direction in which the rod 1B extends (direction a in FIG. 11), and is substantially the same axis as the axis of the rod 1B.
The club insertion portion 610 for the club extends in the radial direction of the disc-shaped first connecting member 600 and rotates around the center (central axis L) of the circular first connecting member 600 as will be described later. The angle (elevation angle) between the wheelchair 100 and the ground contact surface can be changed as appropriate.

  The cross section of the rod insertion portion 610 for the club is a semi-oval, and the inner diameter dimension is set larger than the outer diameter dimension of the casing 20 of the club rod 1B. Therefore, the third connecting member 600 and the fourth connecting member 602 are not only when the bolts 626, 628, 630, 632 and the nuts 627, 629, 631, 633 are loosened, but also when tightened. The club 1B can be inserted through the club insertion part 610 for the club.

  Further, the third connecting member 600 has a pair of opposing arc-shaped movable range restricting long holes 612 and 614 formed concentrically with the center of the third connecting member 600 with the rod insertion portion 610 interposed therebetween. Yes. A bolt 626 is inserted into one end of the movable range restriction long hole 612, and a bolt 632 is inserted into the other end. A bolt 628 is inserted into one end of the movable range restriction long hole 614, and a bolt 630 is inserted into the other end. The movable range regulating long holes 612 and 614 provide a rotation range between the third connecting member 600 and the fourth connecting member 602 that are combined by bolts 626, 628, 630, and 632 and nuts 627, 629, 631, and 633. It is for regulation. The hole diameters of the movable range restriction long holes 612 and 614 are set to be slightly larger than the diameters of the bolts 626, 628, 630, and 632, and the bolts 626, 628, 630, and 632 smoothly move in the movable range restriction long holes 612 and 614. It is configured to be able to move to.

  On the other hand, the fourth connecting member 602 has substantially the same shape and size as the third connecting member 600. The fourth connecting member 602 is configured to fit into the base pipe 156 of the wheelchair 100. The fourth connecting member 602 has a disk shape, and a cylindrical base pipe fitting portion 620 that protrudes outward is formed at the center. The base pipe fitting part 620 extends from one outer edge of the fourth connecting member 602 to the other outer edge through the center of the fourth connecting member 602. The extending direction of the base pipe fitting portion 620 is parallel to the direction in which the base pipe 156 extends (the b direction in FIG. 11), and is substantially the same axis as the axis of the base pipe 156. The base pipe fitting part 620 is in a positional relationship obliquely intersecting with the rod rod housing insertion part 610 of the third connecting member 600.

  The cross section of the base pipe fitting portion 620 is semi-oval, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the base pipe 156. Therefore, when the bolts 626, 628, 630, 632 and the nuts 627, 629, 631, 633 are loosened, the third connecting member 600 and the fourth connecting member 602 are fitted with the base pipe 156. The inside of the part 620 can be inserted. When the third connecting member 600 and the fourth connecting member 602 are tightened by the bolts 626, 628, 630, 632 and the nuts 627, 629, 631, 633, the base pipe 156 is fitted into the base pipe. The second mounting member 60 is fixed to the base pipe 156 by being fitted to the portion 620.

  The fourth connecting member 602 is formed with a pair of opposing arc-shaped movable range restricting long holes 622 and 624 with the center of the fourth connecting member 602 being concentric with the base pipe fitting portion 620 interposed therebetween. Yes. A bolt 626 is inserted into one end of the movable range restriction long hole 622, and a bolt 628 is inserted into the other end. A bolt 632 is inserted into one end portion of the movable range restriction long hole 624, and a bolt 630 is inserted into the other end portion. The movable range restricting long holes 622 and 624 have a rotation range between the third connecting member 600 and the fourth connecting member 602 that are combined by bolts 626, 628, 630, and 632 and nuts 627, 629, 631, and 633. It is for regulation. The hole diameters of the movable range restriction long holes 622 and 624 are set to be slightly larger than the diameters of the bolts 626, 628, 630, and 632, and the bolts 626, 628, 630, and 632 smoothly move the movable range restriction long holes 622 and 624. It is configured to be movable. The movable range restriction long holes 622 and 624 are in a positional relationship obliquely intersecting with the movable range restriction long holes 612 and 614 of the third connecting member 600.

In the third connecting member 600 and the fourth connecting member 602, the surface 601 on the side where the rod insertion portion 610 for the rod is not projected and the surface 603 on the side where the base pipe fitting portion 620 is not projected are brought into contact with each other. It is piled up in the state which did. The center of the third connecting member 600 and the center of the fourth connecting member 602 exist on the central axis L of the second mounting member 60. The pair of arc-shaped movable range restricting long holes 612 and 614 of the third connecting member 600 and the pair of arc-shaped movable range restricting long holes 622 and 624 of the fourth connecting member 602 are the second mounting member 60. Are arranged in the same circle centered on the central axis L. Moreover, the 3rd connection member 600 and the 4th connection member 602 are combined in the state which mutually shifted | deviated a little.
The third connecting member 600 and the fourth connecting member 602 extend in a direction in which the rod insertion rod insertion portion 610 of the third connecting member 600 and the front and rear leg connecting rod fitting portions 620 of the fourth connecting member 602 intersect. , Combined.
Similarly to FIG. 16, the pair of arc-shaped movable range restriction long holes 612 and 614 of the third connecting member 600 and the pair of arc-shaped movable range restriction long holes 622 and 624 of the fourth connecting member 602 are mutually connected. The central part of each overlaps. Bolts 626, 628, 630, and 632 are inserted through the overlapping ranges R5 and R6, respectively.

  Between the bolt 626 and the bolt 628, and between the bolt 630 and the bolt 632, a rod insertion member 610 is disposed. A base pipe fitting portion 620 is disposed between the bolts 626 and 632 and between the bolts 628 and 630. Accordingly, since the four bolts 626, 628, 630, and 632 are arranged at substantially equal intervals on the edge of the second mounting member 60, the mechanical strength of the second mounting member 60 is increased.

Then, when the four sets of bolts 626, 628, 630, and 632 and the nuts 627, 629, 631, and 633 are loosened, the third connecting member 600 uses the central axis L of the second mounting member 60 as the rotation axis. The surface 601 and the surface 603 that are in surface contact with each other can be relatively slid and rotated in the direction c illustrated in FIG. In other words, the third connecting member 600 is rotatable together with the bar 1B about an axis Q2 (shown in FIG. 2) connecting the pair of first mounting members 50 and 60 as a rotation axis. However, the rotatable range is limited to the ranges R5 and R6 where the movable range restriction long holes 612 and 614 and the movable range restriction long holes 622 and 624 overlap. Further, when the bolts 626, 628, 630, and 632 and the nuts 627, 629, 631, and 633 are loosened, the second mounting member 60 also extends in the direction in which the base pipe 156 extends (direction b in FIG. 11). It is movable. The surface 601 and the surface 603 that are in surface contact with each other are orthogonal to the axis Q2 and parallel to the club 1B. The axial centers 626a, 628a, 630a, and 632a of the bolts 626, 628, 630, and 632 are orthogonal to the surfaces 601 and 603 and the club 1B.
The first connecting member 600 and the second connecting member 602 rotate relative to each other, and the leg pipe fitting portion 620 of the second connecting member 602 attached to the leg pipe 106 and the rod insertion member insertion portion of the first connecting member 600 The angle formed with 610 can be changed.

2. Procedure for Handling Wheelchair Pulling Aid (a) Procedure for Attaching Wheelchair Pulling Aid to Wheelchair Next, a procedure for attaching wheelchair emergency aid 1 having the above configuration to wheelchair 100 will be described mainly based on FIGS. .

In the wheelchair emergency aid 1, the first connecting member 300 and the second connecting member 302 of the first mounting member 30 are fastened by bolts 326, 328, 330, 332 and nuts 327, 329, 331, 333, and the wheelchair The leg pipe fitting portion 320 of the second connecting member 302 is fitted and fixed at a predetermined position of the 100 leg pipes 106. Similarly, the first connecting member 400 and the second connecting member 402 of the first mounting member 40 are fastened by bolts 426, 428, 430, 432 and nuts 427, 429, 431, 433, and the leg pipe of the wheelchair 100 is secured. The leg pipe fitting portion 420 of the second connecting member 402 is fitted and fixed at a predetermined position 108.
The first connecting member 300 and the second connecting member 302 of the first mounting member 30 and the first connecting member 400 and the second connecting member 402 of the first mounting member 40 are at the same height position, the leg pipe 106 and the leg pipe 108. Attached to.

  Further, the third connecting member 500 and the fourth connecting member 502 of the second mounting member 50 are fastened by bolts 526, 528, 530, 532 and nuts 527, 529, 531, 533, and the base pipe 154 of the wheelchair 100. The base pipe fitting portion 520 of the fourth connecting member 502 is fitted and fixed at the predetermined position. Similarly, the third connecting member 600 and the fourth connecting member 602 of the second mounting member 60 are fastened by bolts 626, 628, 630, 632 and nuts 627, 629, 631, 633, and the base pipe of the wheelchair 100 is secured. The base pipe fitting part 620 of the fourth connecting member 602 is fitted and fixed at a predetermined position 156.

Next, a procedure for attaching the club 1A and the club 1B to the first mounting member 30, the first mounting member 40, the second mounting member 50, and the second mounting member 60 will be described.
First, the rod 1 </ b> A is inserted into the rod rod insertion portion 310 of the first attachment member 30 and the rod rod insertion portion 510 of the second attachment member 50 from the side where the protection portion 1814 is provided. After that, the positioning pins 304 are arranged from above to a pair of upper and lower through holes 340 and 342 of the rod insertion portion 310 for the rod and the pair of upper and lower through holes 16a and 16b of the housing 10 which are formed on the same axis. It is inserted and inserted. Then, when the annular head portion 304a of the positioning pin 304 is locked by the through hole 340, the rod 1A is positioned and easily fixed to the rod insertion portion 310 for the rod of the first mounting member 30.
The third connecting member 500 and the fourth connecting member 502 of the second mounting member 50 and the third connecting member 600 and the fourth connecting member 602 of the second mounting member 60 are at the same height position and front and rear position, and the base pipe 154. And attached to the base pipe 156.

  Similarly, the club 1 </ b> B is inserted from the side on which the protection part 28 is provided into the club rod insertion part 410 of the first attachment member 40 and the rod rod insertion part 610 of the second attachment member 60. Thereafter, the positioning pins 404 are arranged from above to a pair of upper and lower through holes 440 and 442 of the rod insertion part 410 for the rod whose axis is formed on the same axis and a pair of upper and lower through holes 26a and 26b of the casing 20 from above. It is inserted and inserted. Then, when the annular head 404a of the positioning pin 404 is locked by the through-hole 440, the club 1B is positioned and easily fixed to the club insertion part 410 for the club of the first mounting member 40.

FIG. 13 is an explanatory diagram showing a use state of the wheelchair emergency assistance device 1. A person 200 who pulls the wheelchair 100 enters an area between the pair of left and right clubs 1A and 1B of the wheelchair emergency aid 1 and moves forward by grasping the grips 12 and 22 by hand. It is possible to assist the traveling movement of the wheelchair 100 during emergency evacuation, or the traveling movement of the wheelchair 100 on rough terrain such as a gravel road or uphill.
In order to assist the towing person 200 when pulling the wheelchair 100, a belt 700a may be bridged between the club 1A and club 1B as shown in FIG.
The belt 700a includes a belt piece 702a attached to the club 1A and a belt piece 704a attached to the club 1B, a connector 706a attached to the tip of the belt piece 702a, and a connector attached to the tip of the belt piece 704a. It is configured to engage with and connect to 708a.
The towed person 200 places the belt 700a on the abdomen and pulls the wheelchair 100 forward.

(B) Procedure for removing wheelchair emergency aid from wheelchair Next, a procedure for removing wheelchair emergency aid 1 from wheelchair 100 will be described.
When the positioning pins 304 are extracted from the pair of upper and lower through holes 340 and 342 of the rod insertion member 310 for the rod and the pair of upper and lower through holes 16a and 16b of the rod 10, the positioning of the rod 1A is released. Accordingly, the club 1 </ b> A can be pulled out from the club rod insertion portion 310 for the rod of the first attachment member 30 and the rod insertion portion 510 for the rod of the second attachment member 50, and the club 1 </ b> A can be easily detached from the wheelchair 100.

  Similarly, when the positioning pins 404 are extracted from the pair of upper and lower through holes 440 and 442 of the rod rod housing insertion portion 410 and the pair of upper and lower through holes 26a and 26b of the rod body 20, the positioning of the rod 1B is released. Therefore, the club 1B can be pulled out from the club insertion part 410 for the club of the first mounting member 40 and the chassis insertion part 610 for the club of the second mounting member 60, and the club 1B can be easily detached from the wheelchair 100.

(C) Procedure for changing the angle of the clubs Next, a procedure for changing the angles of the clubs 1A and 1B will be described. This is because the angle of the clubs 1A and 1B needs to be changed depending on the body shape of the person 200 who pulls the wheelchair 100.

  FIG. 14 is a perspective view showing a procedure for changing the angle of the club 1A. FIG. 15 is a schematic diagram illustrating a positional relationship between the first connecting member 300 and the second connecting member 302 of the first mounting member 30. FIG. 16 is a schematic diagram showing the positional relationship between the third connecting member 500 and the fourth connecting member 502 of the second mounting member 50. For example, when the figure of the person 200 who pulls the wheelchair 100 is large, it is necessary to increase the angles of the clubs 1A and 1B as shown in FIG.

  That is, when the angle of the club 1A is increased, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are loosened, and the bolts 526 of the second mounting member 50 are tightened. 528, 530, 532 and nuts 527, 529, 531, 533 are loosened.

  Next, the first connecting member 300 of the first mounting member 30 rotates by a predetermined angle in the clockwise direction (the direction shown in FIG. 14A) with respect to the second connecting member 302. At that time, as shown in FIG. 15B, the positions of the bolts 326, 328, 330, and 332 are the movable range restriction long holes 312 and 314 of the first connection member 300 and the movable range restriction long hole of the second connection member 302. It moves slightly within the range R1, R2, R3, R4 where 322 and 324 overlap. Similarly, the third connecting member 500 of the second mounting member 50 rotates by a predetermined angle in the clockwise direction (the direction shown in FIG. 14B) with respect to the fourth connecting member 502. At that time, as shown in FIG. 16B, the positions of the bolts 526, 528, 530, and 532 are the movable range restriction long holes 512 and 514 of the third connection member 500 and the movable range restriction long holes of the fourth connection member 502. It moves slightly within the ranges R5 and R6 where 522 and 524 overlap.

  Thereafter, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are tightened, and the bolts 526, 528, 530, 532 of the second mounting member 50 and the nuts 527, 529 are tightened. , 531 and 533 are tightened. As a result, the angle in the extending direction of the rod insertion portions 310 and 510 for the rods of the first mounting members 30 and 50 is increased, and the angle of the rod 1A can be increased. The angle of the club 1B can be increased by the same procedure.

  Moreover, when the body shape of the person 200 who pulls the wheelchair 100 is small, it is necessary to make the angle of the clubs 1A and 1B small. When the angle of the club 1A is increased, the bolts 326, 328, 330, 332 of the first mounting member 30 and the nuts 327, 329, 331, 333 are loosened, and the bolts 526, 528, of the second mounting member 50 are loosened. 530, 532 and nuts 527, 529, 531, 533 are loosened.

  Next, the first connecting member 300 of the first mounting member 30 rotates by a predetermined angle in the counterclockwise direction (the direction opposite to the illustrated direction in FIG. 14A) with respect to the second connecting member 302. At that time, as shown in FIG. 15C, the positions of the bolts 326, 328, 330, and 332 are the movable range restriction long holes 312 and 314 of the first connecting member 300 and the movable range restriction long holes of the second connecting member 302. It moves slightly within the range R1, R2, R3, R4 where 322 and 324 overlap. Similarly, the third connecting member 500 of the second mounting member 50 rotates by a predetermined angle in the counterclockwise direction (the direction opposite to the illustrated direction in FIG. 14B) with respect to the fourth connecting member 502. At that time, as shown in FIG. 16C, the positions of the bolts 526, 528, 530, and 532 are the movable range restriction long holes 512 and 514 of the third connection member 500 and the movable range restriction long holes of the fourth connection member 502. It moves slightly within the ranges R5 and R6 where 522 and 524 overlap.

  Thereafter, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are tightened, and the bolts 526, 528, 530, 532 of the second mounting member 50 and the nuts 527, 529 are tightened. , 531 and 533 are tightened. As a result, the angle of the extending direction of the rod insertion member 310, 510 for the rod of the first mounting member 30, 50 is reduced, and the angle of the rod 1A can be reduced. By the same procedure, the angle of the club 1B can be reduced.

The joining surfaces of the first connection member 300 and the second connection member 302 of the first attachment member 30 that contact the first connection member 300 and the second connection member 302 of the first attachment member 30 are planar, and The joining surfaces of the first connecting member 400 and the second connecting member 402 of the first mounting member 40 that contact the first mounting member 40 and the second connecting member 402 are planar.
In addition, the joint surface of the third connecting member 500 and the fourth connecting member 502 of the second mounting member 50 that contacts the fourth connecting member 502 and the fourth connecting member 502 of the second mounting member 50 is planar. And the joint surface of the 3rd connection member 600 of the 2nd attachment member 60 and the 4th connection member 602 which contacts the 3rd connection member 600 and the 4th connection member 602 of the 2nd attachment member 60 is planar.
The joint surface of the first attachment member 30, the joint surface of the first attachment member 40, the second attachment member 50, and the joint surface of the second attachment member 60 are joined in one plane.
The joining surface of the first connecting member 300 and the second connecting member 302 of the first mounting member 30 and the joining surface of the first connecting member 400 and the second connecting member 402 of the first mounting member 40 are within the one plane. The first connecting member 300, the second connecting member 302, and the first attaching member 40 of the first attaching member 30 rotate with each other.
The joining surface of the third connecting member 500 and the fourth connecting member 502 of the second attaching member 50 and the joining surface of the third connecting member 600 and the fourth connecting member 602 of the second attaching member 60 are second in the one plane. The third connecting member 500 and the fourth connecting member 502 of the mounting member 50 and the third connecting member 600 and the fourth connecting member 602 of the second mounting member 60 rotate relative to each other.

3. Effects of Embodiment (a) Since the positioning pins 304 and 404 are inserted into the clubs 1A and 1B, the clubs 1A and 1B can be easily attached to and detached from the wheelchair 100 only by inserting and removing the positioning pins. it can.

  (B) Further, the first connecting members 300 and 400 of the first mounting members 30 and 40 are respectively attached to the clubs 1A and 1B, and an axis Q1 connecting the pair of first mounting members 30 and 40 is used as a rotation axis. It is comprised so that rotation with the clubs 1A and 1B is possible. And the 3rd connection member 500,600 of the 2nd attachment members 50 and 60 is attached to clubs 1A and 1B, respectively, and axis Q2 which connects a pair of 2nd mounting members 50 and 60 is used as a rotation axis, and clubs 1A and 1B It is configured to be rotatable together with 1B. As a result, the angle of the clubs 1A and 1B can be easily set.

  (C) In addition to the first mounting members 30 and 40, the second mounting members 51 and 60 also hold the clubs 1A and 1B, and hold the clubs 1A and 1B at two locations. The mechanical strength can be increased. Therefore, even when mechanical stress orthogonal to the clubs 1A and 1B is applied to the clubs 1A and 1B, problems such as bending of the clubs 1A and 1B hardly occur.

  The present invention is not limited to the embodiment described above, and various modifications can be made based on the idea of the present invention.

1. Configuration of Wheelchair FIG. 19 is a perspective view showing the wheelchair 100 to which the wheelchair emergency aid 1 is attached. The wheelchair 100 is similar to a commercially available general wheelchair, and the wheelchair emergency aid 1 according to the present invention should be applied to all commercially available general wheelchairs.

Here, the configuration of the wheelchair 100 will be briefly described. The wheelchair 100 to which the present invention is applied is a chair with a vehicle devised for people who are unable to walk, and is similar to a general wheelchair, and thus detailed description thereof is omitted.
In this specification, the front side of the wheelchair is referred to as the pulling side, the left hand as viewed from the front side is referred to as the left side, and the right hand is referred to as the right side.
2. Wheelchair Emergency Aid Tool FIG. 20 is a plan view showing the wheelchair emergency aid 1. The wheelchair emergency aid 1 includes a left club 1A and a right club 1B for pulling the wheelchair 100, and at least one of the left and right front pipes 102 and front pipes 104 and the left and right leg pipes 106 and leg pipes 108 of the wheelchair 100. A pair of left and right first mounting members 30 and a first mounting member 40 for detachably mounting the club 1A and the club 1B are provided.
The wheelchair emergency assistance tool 1 includes a depression angle adjusting mechanism for changing the angle between the club 1A and club 1B and the horizontal plane.
As for the said stick 1A and the stick 1B, the grip part 12 and the grip part 22 are formed in the one end part of the housing 10 and the housing 20, and the wheelchair attachment part 14 and the wheelchair attachment part 24 are on the other end side of the housing 10 and the chassis 20. Is formed.
The left first mounting member 30 and the right first mounting member 40 are configured to pass through the chassis 10 of the club 1A and club 1B, the wheelchair mounting part 14 and the wheelchair mounting part 24 of the chassis 20, and The rod 10 and rod 20 of the rod 1A and rod 1B are configured to be attached and detached by inserting and removing the positioning pins 304.
The first attachment member 30 and the first attachment member 40 are connected to at least one of the front pipe 102, the front pipe 104, the leg pipe 106, and the leg pipe 108 of the wheelchair 100. 1 connecting member 400 and the second connecting member 302 and the second connecting member 402 configured to be joined to at least one of the front pipe 102 and the front pipe 104 and the leg pipe 106 and the leg pipe 108 of the wheelchair 100. .
The first connecting member 300 and the first connecting member 400 and the second connecting member 302 and the second connecting member 402 sandwich the front pipe 102, the front pipe 104, and the leg pipe 106 and the leg pipe 108, respectively. It is connected.
The wheelchair emergency assistance tool 1 includes a depression suppression angle changing member that constitutes a depression suppression adjustment mechanism.
The first attachment member 30 and the first attachment member 40 constitute a depression angle changing member, and the first connection member 300, the first connection member 400 and / or the second connection member 302, and the second connection member 402. The angle between the horizontal bar 1A and the horizontal bar 1B and the horizontal plane can be changed by relative rotation.

The wheelchair emergency aid 1 includes a pivot member that constitutes a depression angle adjusting mechanism.
The wheelchair emergency aid 1 is detachably attachable to the left base pipe 154 and the right base pipe 164 that connect the left and right front wheels and the rear wheel of the wheelchair 100, and the housing 10 of the club 1A and club 1B. A pair of left and right second mounting members 51 and a second mounting member 61 for supporting the housing 20 are further provided.
The second mounting member 51 on the left side and the second mounting member 61 on the right side are located at the other ends of the housing 10 and the housing 20, and the first mounting member 30 and the first mounting member 40 are connected to the housing 10 and the housing 10. It is located between the grip part 12 and the grip part 22 of the housing 20 and the second attachment member 51 and the second attachment member 61.
The second attachment member 51 and the second attachment member 61 are configured to be joined to the base pipe 154 and the base pipe 164 of the wheelchair 100, and the base of the wheelchair 100. The fourth connecting member 502 and the fourth connecting member 602 are configured to be joined to the pipe 154 and the base pipe 164.
The second attachment member 51 and the second attachment member 61 constitute a pivot member, and rotate the third connection member 500 and the third connection member 600 and / or the fourth connection member 502 and the fourth connection member 602. The angle formed between the horizontal bar 1A and the horizontal bar 1B and the horizontal plane can be changed.
The second attachment members 51 and 61 may be omitted depending on the specifications of the wheelchair emergency aid 1.

(A) Rods The pair of left and right rods 1A and rods 1B have the same shape and size. The left club 1 </ b> A and the right club 1 </ b> B include a chassis 10 and a chassis 20, a grip part 12 and a grip part 22, a wheelchair attachment part 14, a wheelchair attachment part 24, and protection parts 18 and 28, respectively. The casing 10 and the casing 20 made of aluminum or the like have a length of, for example, 1 m to 2 m, and are pipes having a circular cross section in order to reduce weight and increase mechanical strength.
The left club 1 </ b> A and the right club 1 </ b> B are attached to the left and right sides of the wheelchair 100 with an interval slightly longer than the width of the wheelchair 100, that is, the width of the seat 110.

  The substantially cylindrical grip portions 12 and 22 are provided so as to cover one end portions (end portions on the pulling side) of the casings 10 and 20 having a circular cross section.

The other end portion (the end portion on the wheelchair side) of the casing 10 of the left club 1A is inserted into one (left side) second mounting member 51. In the vicinity of the center of the chassis 10, a wheelchair mounting part 14 is formed, and the wheelchair mounting part 14 between the grip part 12 of the chassis 10 and the second mounting member 51 is inserted and attached to the first mounting member 30. .
A pair of upper and lower through holes 16a and 16b for inserting positioning pins 304 (described later) are formed on the upper side and the lower side of the outer peripheral surface of the housing 10 at positions where the first mounting member 30 of the housing 10 is to be disposed. Has been. The through-holes 16a and 16b are formed so that the respective axis centers are on the same axis.

The other end portion (the end portion on the wheelchair side) of the casing 20 of the right club 1B is inserted into the other (right side) second attachment member 61. In the vicinity of the center of the housing 10, a wheelchair mounting portion 24 is formed, and the wheelchair mounting portion 24 between the grip portion 22 of the housing 20 and the second mounting member 61 is inserted into the first mounting member 40 and attached. The
A pair of upper and lower through holes 26a and 26b for inserting positioning pins 404 (described later) are formed on the upper side and the lower side of the outer peripheral surface of the housing 20 at positions where the first mounting member 40 of the housing 20 is to be disposed. Has been. The through-holes 26a and 26b have respective axes that are formed on the same axis.

In use, the club 1 </ b> A and club 1 </ b> B are attached to the wheelchair 100 only by being inserted through the first mounting portion 30 and the first mounting portion 40 that are previously mounted on the wheelchair 100.
The club 1 </ b> A and the club 1 </ b> B are attached to the wheelchair 100 so as to have a line-symmetric positional relationship with respect to the central axis C of the wheelchair 100.
Furthermore, the clubs 1A and 1B are in a state of being inclined downwardly in a straight line toward the side of the protective parts 18 and 28 (wheelchair side), with the grip parts 12 and 22 side (pull side) facing upward. Attached to the wheelchair 100.

  Moreover, the substantially hemispherical-shaped protection part 18 and the protection part 28 are provided so that the other end part (end part by the side of a wheelchair) of the housings 10 and 20 may be covered. Since the protection part 18 and the protection part 28 are substantially semicircular, the wheelchair, the ground, and the floor are hardly damaged even when the other ends of the clubs 1A, 1B collide with the wheelchair, the ground, and the floor. The protection part 18 and the protection part 28 are made of an elastic rubber material or resin material. The grip portions 12 and 22 are made of a rubber material or a resin material so that a person who pulls the wheelchair 100 can easily grip the wheelchair 100 with a hand.

(B) First Attachment Member The pair of left and right first attachment members 30 and 40 can be detachably attached to at least one of the left and right front pipes 102 and 104 and the left and right leg pipes 106 and 108 of the wheelchair 100.
The first connecting member 30 on the left side is connected to the first connecting member 300 and the second connecting member 302 so as to face each other with the front pipe 102 interposed therebetween, and the front pipe 102 is fastened and attached to the front pipe 102.
The first connecting member 40 on the left side is connected to the first connecting member 400 and the second connecting member 402 facing each other with the front pipe 104 interposed therebetween, and the front pipe 104 is fastened to be attached to the front pipe 104.
The first attachment member 30 on the left side and the first attachment member 40 on the right side are usually attached to the wheelchair 100 at the same height position.
Normally, the club 1 </ b> A and club 1 </ b> B removed from the first mounting member 30 and the first mounting member 40 are inserted into the first mounting member 30 and the first mounting member 40 in an emergency, etc. It is attached.
In the present embodiment, the case where the first attachment members 30 and 40 are attached to the front pipe 102 and the front pipe 104 will be described as an example.
The club insertion portion 310 for the club extends in the radial direction of the disk-shaped first connection member 300 and rotates around the center (center axis L) of the circular first connection member 300 as will be described later. The angle between the wheelchair 100 and the ground contact surface (elevation angle, θ shown in FIG. 31) can be changed as appropriate.

(I) First mounting member 30
FIG. 21 is a perspective view of the first mounting member 30 as viewed from the seat side. FIG. 22 is a perspective view of the first attachment member 30 as viewed from the outside. FIG. 23 is an exploded perspective view showing the first mounting member 30.
The left first attachment member 30 includes a first connection member 300 disposed on the seat seat side, a second connection member 302 disposed outside the front pipe 102, and a positioning pin 304.
Then, the first connecting member 300 and the second connecting member 302 are tightened and combined with the front pipe 102 using four sets of bolts 326, 328, 330, 332 and nuts 327, 329, 331, 333. Has been.

  The first connecting member 300 has a disk shape, and a cylindrical rod insertion portion 310 for a rod that protrudes in a convex shape toward the seat is formed at the center. The club insertion portion 310 for the rod extends through the central portion of the first connecting member 300 and extends from one outer edge of the first connecting member 300 to the other outer edge. The extension direction of the club insertion portion 310 for the club is parallel to the direction in which the club 1A extends (direction a in FIG. 21), and is substantially the same axis as the axis of the club 1A.

  The cross section of the rod insertion portion 310 for the rod is a semi-ellipse, and the inner diameter dimension is set larger than the outer diameter of the rod 10 of the rod 1A. Therefore, in the first connecting member 300, the rod 1A is inserted into the rod rod body even when the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 are loosened or tightened. The inside of the part 310 can be inserted.

  Further, a pair of upper and lower through-holes 340 and 342 for inserting the positioning pins 304 are formed in the upper and lower portions of the outer peripheral surface of the rod rod insertion portion 310. The pair of upper and lower through holes 340 and 342 are formed so that the axis is on the same axis as the axis of the pair of upper and lower through holes 16 a and 16 b of the housing 10.

  The first connecting member 300 is formed with a pair of opposing arc-shaped movable range restricting long holes 312 and 314 having concentric circles at the center of the first connecting member 300 with the rod insertion member 310 interposed therebetween. Yes. A bolt 326 is inserted into one end of the movable range restriction long hole 312 and a bolt 332 is inserted into the other end. A bolt 328 is inserted into one end of the movable range restriction long hole 314, and a bolt 330 is inserted into the other end. The movable range regulating long holes 312 and 314 provide a rotation range between the first connecting member 300 and the second connecting member 302 that are combined by bolts 326, 328, 330, and 332 and nuts 327, 329, 331, and 333. It is for regulation. The hole diameters of the movable range restriction long holes 312 and 314 are set to be slightly larger than the diameters of the bolts 326, 328, 330, and 332, and the bolts 326, 328, 330, and 332 smoothly pass through the movable range restriction long holes 312 and 314. It is configured to be able to move to.

  On the other hand, the second connecting member 302 on the left side has substantially the same shape and size as the first connecting member 300. The second connecting member 302 is configured to be fitted to at least one of the front pipe 102 and the leg pipe 106 of the wheelchair 100. In the present embodiment, the case where the second connecting member 302 is attached to the front pipe 104 will be described as an example.

  The second connecting member 302 has a disk shape, and a tubular pipe fitting portion 320 that protrudes outward is formed at the center. The pipe fitting portion 320 extends from one outer edge of the second connecting member 302 to the other outer edge through the center portion of the second connecting member 302. The extending direction of the leg pipe fitting portion 320 is parallel to the direction in which the front pipe 102 extends (direction b in FIG. 21), and is substantially the same axis as the axis of the front pipe 102. The pipe fitting portion 320 is in a positional relationship that is substantially orthogonal to the rod rod housing insertion portion 310 of the first connecting member 300.

  The cross section of the pipe fitting part 320 is semi-oval, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the front pipe 102. Therefore, when the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 are loosened, the second connecting member 302 can insert the front pipe 102 through the pipe fitting portion 320. . When the second connecting member 302 is tightened by the bolts 326, 328, 330, and 332 and the nuts 327, 329, 331, and 333, the front pipe 102 is fitted into the pipe fitting portion 320, and the first coupling member 302 is The attachment member 30 is fixed to the front pipe 102.

  The second connecting member 302 is formed with a pair of arc-shaped movable range restricting long holes 322 and 324 facing each other with the center of the second connecting member 302 being a concentric circle with the pipe fitting portion 320 interposed therebetween. . A bolt 326 is inserted into one end of the movable range restriction long hole 322, and a bolt 328 is inserted into the other end. A bolt 332 is inserted into one end of the movable range restriction long hole 324, and a bolt 330 is inserted into the other end. The movable range restricting long holes 322 and 324 provide a rotation range between the first connecting member 300 and the second connecting member 302 combined by bolts 326, 328, 330 and 332 and nuts 327, 329, 331 and 333. It is for regulation. The hole diameters of the movable range restriction long holes 322 and 324 are set to be slightly larger than the diameters of the bolts 326, 328, 330, and 332, and the bolts 326, 328, 330, and 332 smoothly move the movable range restriction long holes 322 and 324. It is configured to be movable. The movable range restriction long holes 322 and 324 are in a positional relationship substantially perpendicular to the movable range restriction long holes 312 and 314 of the first connecting member 300.

The first connecting member 300 and the second connecting member 302 are in surface contact with the surface 301 on the side where the rod insertion portion 310 for the rod is not projected and the surface 303 on the side where the pipe fitting portion 320 is not projected. Overlapped in state. The center of the first connecting member 300 and the center of the second connecting member 302 exist on the central axis L (shown in FIG. 23) of the first mounting member 30. The pair of arc-shaped movable range restricting long holes 312 and 314 of the first connecting member 300 and the pair of arc-shaped movable range restricting long holes 322 and 324 of the second connecting member 302 are the first mounting member 30. Are arranged in the same circle centered on the central axis L. Moreover, the 1st connection member 300 and the 2nd connection member 302 are combined in the state which mutually shifted substantially 90 degrees.
The first connecting member 300 and the second connecting member 302 are combined so as to extend in a direction in which the rod rod insertion portion 310 of the first connecting member 300 and the leg fitting portion 320 of the second connecting member 302 intersect. It is.
The movable range restriction long hole 312 and the movable range restriction long hole 314 of the first connecting member 300 extend in a direction intersecting with the movable range restriction long hole 322 and the movable range restriction long hole 324 of the second connection member 302.
As shown in FIG. 15, the pair of arc-shaped movable range restriction long holes 312 and 314 of the first connecting member 300 and the pair of arc-shaped movable range restriction long holes 322 and 324 of the second connecting member 302 are Both ends overlap each other. Bolts 326, 328, 330, and 332 are inserted into the overlapping ranges R1, R2, R3, and R4, respectively.

  Between the bolt 326 and the bolt 328 and between the bolt 330 and the bolt 332, a rod insertion member 310 is disposed. A pipe fitting portion 320 is disposed between the bolt 326 and the bolt 332 and between the bolt 328 and the bolt 330. Accordingly, since the four bolts 326, 328, 330, and 332 are arranged at substantially equal intervals on the edge of the first mounting member 30, the mechanical strength of the first mounting member 30 is increased.

The first connecting member 300 has a central axis L (shown in FIG. 23) of the first mounting member 30 when the four sets of bolts 326, 328, 330, 332 and nuts 327, 329, 331, 333 are loosened. As a rotation axis, the surface 301 and the surface 303 that are in surface contact with each other can be relatively slid and rotated in the direction c shown in FIG. In other words, the first connecting member 300 is rotatable together with the club 1A about the axis Q1 (shown in FIG. 20) connecting the pair of first mounting members 30 and 40 as a rotation axis. However, the rotatable range is limited to the ranges R1, R2, R3, and R4 where the movable range restriction long holes 312 and 314 and the movable range restriction long holes 322 and 324 overlap. Further, when the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 are loosened, the first mounting member 30 also moves in the direction in which the front pipe 102 extends (direction b in FIG. 21). Is possible. The axis Q1 is orthogonal to the clubs 1A and 1B. Further, the surface 301 and the surface 303 that are in surface contact with each other are orthogonal to the axis Q1 and parallel to the club 1A. The axial centers 326a, 328a, 330a, 332a of the bolts 326, 328, 330, 332 are orthogonal to the surfaces 301, 303 and the rod 1A.
The first connecting member 300 and the second connecting member 302 rotate relative to each other, and the pipe fitting part 320 of the second connecting member 302 attached to the front pipe 102 and the rod insertion part 310 for the rod of the first connecting member 300. The angle formed by can be changed.

  The positioning pin 304 includes an annular head part 304a and a cylindrical body part 304b. The positioning pin 304 has a cylindrical body portion 304b on the lower side, and a pair of upper and lower through holes 340 and 342 of the rod rod housing insertion portion 310 whose axis is formed on the same axis from the upper and lower sides of the housing 10. The pair of through holes 16a and 16b are inserted. When the annular head portion 304a of the positioning pin 304 is locked by the through hole 340, the rod 1A is positioned on the rod insertion portion 310 (first connecting member 300).

(Ii) First mounting member 40
FIG. 24 is a perspective view of the first mounting member 40 as viewed from the seat side. FIG. 25 is a perspective view of the first mounting member 40 as viewed from the outside. The first attachment member 40 is the same as the first attachment member 30, and the first connection member 400 on the right side disposed on the seat seat side and the second connection member 402 disposed on the outside with the front pipe 104 interposed therebetween. And positioning pins 404.
The first connecting member 400 and the second connecting member 402 are fastened to the front pipe 104 using four sets of bolts 426, 428, 430, and 432 and nuts 427, 429, 431, and 433, and are combined and connected. Has been.

The first connecting member 400 has a disc shape, and has a cylindrical rod insertion portion 410 that protrudes in a convex manner toward the seat in the center portion. The club insertion portion 410 for the rod extends through the central portion of the first connecting member 400 and extends from one outer edge of the first connecting member 400 to the other outer edge. The extending direction of the club insertion portion 410 for the club is parallel to the direction in which the club 1B extends (direction a in FIG. 24) and is substantially the same axis as the axis of the club 1B.
The club insertion portion 410 for the club extends in the radial direction of the disk-shaped first connecting member 400 and, as will be described later, when rotated about the center (central axis L) of the circular first connecting member 400 The angle between the wheelchair 100 and the ground contact surface (elevation angle, θ shown in FIG. 31) can be changed as appropriate.

  The cross section of the rod insertion portion 410 for the club is a semi-oval, and the inner diameter is set larger than the outer diameter of the cabinet 20 of the club 1B. Therefore, in the first connecting member 400, the rod 1B is inserted into the rod rod body even when the bolts 426, 428, 430, 432 and the nuts 427, 429, 431, 433 are loosened or tightened. The portion 410 can be inserted.

  Further, a pair of upper and lower through-holes 440 and 442 for inserting the positioning pins 404 are formed in the upper and lower portions of the outer peripheral surface of the rod rod insertion portion 410. The pair of upper and lower through holes 440 and 442 are formed so that the axis is on the same axis as the axis of the pair of upper and lower through holes 26 a and 26 b of the housing 20.

  The first connecting member 400 is formed with a pair of arc-shaped movable range restricting long holes 412 and 414 facing each other with the center of the first connecting member 400 being concentric with the rod insertion portion 410 for the rod. Yes. A bolt 426 is inserted into one end of the movable range restriction long hole 412, and a bolt 432 is inserted into the other end. A bolt 428 is inserted into one end of the movable range restriction long hole 414, and a bolt 430 is inserted into the other end. The movable range restricting long holes 412 and 414 provide a rotation range between the first connecting member 400 and the second connecting member 402 that are combined by bolts 426, 428, 430, and 432 and nuts 427, 429, 431, and 433. It is for regulation. The hole diameters of the movable range restriction long holes 412 and 414 are set slightly larger than the diameters of the bolts 426, 428, 430, and 432, and the bolts 426, 428, 430, and 432 smoothly move in the movable range restriction long holes 412 and 414. It is configured to be able to move to.

  On the other hand, the second connecting member 402 has substantially the same shape and size as the first connecting member 400. The second connecting member 402 is configured to fit into at least one of the front pipe 104 and the leg pipe 108 of the wheelchair 100. In the present embodiment, the case where the second connecting member 402 is attached to the front pipe 104 will be described as an example.

  The second connecting member 402 has a disk shape, and a tubular pipe fitting portion 420 that protrudes outward is formed at the center. The pipe fitting portion 420 extends from one outer edge of the second connecting member 402 to the other outer edge through the center portion of the second connecting member 402. The extending direction of the pipe fitting portion 420 is parallel to the direction in which the front pipe 104 extends (direction b in FIG. 6), and is substantially the same axis as the axis of the front pipe 104. The pipe fitting portion 420 is in a positional relationship substantially orthogonal to the rod rod housing insertion portion 410 of the first connecting member 400.

  The cross section of the pipe fitting portion 420 is semi-oval, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the front pipe 104. Therefore, when the bolts 426, 428, 430, and 432 and the nuts 427, 429, 431, and 433 are loosened, the second connecting member 402 allows the front pipe 104 to pass through the pipe fitting portion 420. . When the second connecting member 402 is tightened by the bolts 426, 428, 430, and 432 and the nuts 427, 429, 431, and 433, the front pipe 104 is fitted to the pipe fitting portion 420, and the first The attachment member 40 is fixed to the front pipe 104.

  The second connecting member 402 has a pair of arc-shaped movable range restricting long holes 422 and 424 facing each other with the center of the second connecting member 402 being concentric with the pipe fitting portion 420 interposed therebetween. . A bolt 426 is inserted into one end portion of the movable range regulating long hole 422, and a bolt 428 is inserted into the other end portion. A bolt 432 is inserted into one end portion of the movable range restriction long hole 424, and a bolt 430 is inserted into the other end portion. The movable range restricting long holes 422 and 424 provide a rotation range between the first connecting member 400 and the second connecting member 402 that are combined by bolts 426, 428, 430, and 432 and nuts 427, 429, 431, and 433. It is for regulation. The hole diameters of the movable range restriction long holes 422 and 424 are set slightly larger than the diameters of the bolts 426, 428, 430, and 432, and the bolts 426, 428, 430, and 432 smoothly move the movable range restriction long holes 422 and 424. It is configured to be movable. The movable range restriction long holes 422 and 424 are in a positional relationship substantially perpendicular to the movable range restriction long holes 412 and 414 of the first connecting member 400.

The first connecting member 400 and the second connecting member 402 are brought into surface contact with the surface 401 on the side where the rod insertion portion 410 is not overhanging and the surface 403 on the side where the pipe fitting portion 420 is not overhanging. Overlapped in state. The center of the first connecting member 400 and the center of the second connecting member 402 exist on the central axis L of the first mounting member 40. The pair of arc-shaped movable range restricting long holes 412 and 414 of the first connecting member 400 and the pair of arc-shaped movable range restricting long holes 422 and 424 of the second connecting member 402 are the first mounting member 40. Are arranged in the same circle centered on the central axis L. Moreover, the 1st connection member 400 and the 2nd connection member 402 are combined in the state which mutually shifted substantially 90 degrees.
The first connecting member 400 and the second connecting member 402 are combined so as to extend in the direction in which the rod insertion member 410 for the rod of the first connecting member 400 and the leg fitting portion 420 of the second connecting member 402 intersect. It is.
The movable range restriction long hole 412 and the movable range restriction long hole 414 of the first connection member 400 extend in a direction intersecting the movable range restriction long hole 422 and the movable range restriction long hole 424 of the second connection member 402.
Similarly to FIG. 33, the pair of arc-shaped movable range restricting long holes 412 and 414 of the first connecting member 400 and the pair of arc-shaped movable range restricting long holes 422 and 424 of the second connecting member 402 are mutually connected. The two ends overlap each other. Bolts 426, 428, 430, and 432 are inserted into the overlapping ranges R1, R2, R3, and R4, respectively.

  Between the bolt 426 and the bolt 428 and between the bolt 430 and the bolt 432, a rod insertion member 410 is disposed. A pipe fitting portion 420 is disposed between the bolt 426 and the bolt 432 and between the bolt 428 and the bolt 430. Accordingly, since the four bolts 426, 428, 430, and 432 are disposed at substantially equal intervals on the edge of the first mounting member 40, the mechanical strength of the first mounting member 40 is increased.

Then, when the four sets of bolts 426, 428, 430, and 432 and the nuts 427, 429, 431, and 433 are loosened, the first connecting member 400 uses the central axis L of the first mounting member 40 as the rotation axis. The surface 401 and the surface 403 that are in surface contact with each other can be relatively slid and rotated in the direction c illustrated in FIG. In other words, the first connecting member 400 is rotatable together with the club 1B with the axis connecting the pair of first mounting members 30 and 40 as a rotation axis Q1 (shown in FIG. 20). However, the rotatable range is limited to the ranges R1, R2, R3, and R4 where the movable range restriction long holes 412 and 414 and the movable range restriction long holes 422 and 424 overlap. Further, when the bolts 426, 428, 430, 432 and the nuts 427, 429, 431, 433 are loosened, the first mounting member 40 also moves in the direction in which the front pipe 104 extends (direction b in FIG. 24). Is possible. The surface 401 and the surface 403 that are in surface contact with each other are orthogonal to the axis Q1 and parallel to the club 1B. The axial centers 426a, 428a, 430a, and 432a of the bolts 426, 428, 430, and 432 are orthogonal to the surfaces 401 and 403 and the club 1B.
The first connecting member 400 and the second connecting member 402 rotate relative to each other, and the pipe fitting part 420 of the second connecting member 402 attached to the front pipe 104 and the rod insertion part 410 for the rod of the first connecting member 400. The angle formed by can be changed.

  The positioning pin 404 includes an annular head 404a and a cylindrical body 404b. The positioning pin 404 has a cylindrical body portion 404b on the lower side, and a pair of upper and lower through holes 440 and 442 and a vertical direction of the housing 20 from the upper side of the shaft insertion portion 410 for the shaft that is formed on the same axis from above. The pair of through holes 26a and 26b are inserted. Then, when the annular head 404a of the positioning pin 404 is locked by the through hole 440, the club 1B is positioned on the club insertion part 410 (first connecting member 400).

(C) Second Mounting Member The left second mounting member 51 and the right second mounting member 61 can be detachably attached to the left base pipe 154 and the right base pipe 156 of the wheelchair 100.

(I) Second mounting member 51
FIG. 26 is a perspective view of the left second attachment member 51 as seen from the outside. FIG. 27 is a perspective view of the second mounting member 51 as seen from the seat side. FIG. 28 is an exploded perspective view showing the second mounting member 51. The second mounting member 51 includes a third connecting member 1500 disposed on the outside and a fourth connecting member 1502 disposed on the seat side. The third connecting member 1500 and the fourth connecting member 1502 are tightened and combined using six sets of bolts 1540, 1542, 1544, 1546, 1548, and 1550.

  The third connecting member 1500 includes a pivot support portion 1510 and a pivot 1512.

The pivot support 1510 is a metal plate that has a flat outer surface.
The pivot support portion 1510 has a length extending above the left base pipe 154 and a width capable of forming the pivot hole 1514.

The third connecting member 1500 is provided with a pivot support portion 1510.
The pivot support 1510 is vertically attached to the left base pipe 154.
A pivot hole 1514 is formed above the pivot support 1510.

The pivot hole 1514 is formed in the upper part of the base pipe 154 in a direction orthogonal to the central axis of the base pipe 154.
The pivot hole 1514 is formed above the pivot support portion 1510, and the pivot hole 1516 is formed on the other end side (the chair side end) of the club 1002A.

  The pivot 1512 is disposed on the upper portion of the base pipe 154 in a direction orthogonal to the central axis of the base pipe 154.

The pivot shaft 1512 is formed by combining a pivot hole 1516 formed in the club 1A portion (the end on the chair side) and a pivot hole 1514 formed above the pivot support portion 1510, into the pivot hole 1514 and the pivot hole 1516. A shaft portion of a bolt constituting the pivot shaft 1512 is inserted, and a nut 1518 is fitted and fastened to the shaft portion to be fixed to the pivot support portion 1510 and the club 1A.
The pivot 1512 is configured with a bolt shaft (shank). A nut 1518 is fitted to a male screw cut in the shaft, and a hexagonal head and a nut 1518 project from one end of the shaft. The pivot support 1510 and the club 1A are tightened.

The fourth connecting member 1502 includes a pivot support connecting member 1504.
The pivot support part connecting member 1504 includes a pipe fitting part 1520 configured to fit into the base pipe 154 of the chair 101, and a first pivot support part extending upward from the pipe fitting part 1520. A fixing portion 1522 and a second pivot support fixing portion 1524 extending downward from the pipe fitting portion 1520 are provided.

The first pivot support portion fixing portion 1522 is joined to the inner surface of the pivot support portion 1510 disposed outside the base pipe 154, and a bolt 1548 is formed in the female screw hole formed in the first pivot support portion fixing portion 1522. 1530 and a female screw hole 1532 formed in the pivot support portion 1510 are screwed into the pivot support portion 1510.
The second pivot support portion fixing portion 1524 is joined to the inner surface of the pivot support portion 1510 disposed outside the base pipe 154, and a bolt 1550 is formed in the second screw shaft support portion fixing portion 1524. 1534 and a female screw hole 1536 formed in the pivot support portion 1510 are screwed and fixed to the pivot support portion 1510.

(Ii) Second mounting member 61
FIG. 29 is a perspective view of the second mounting member 61 on the right side as viewed from the outside. FIG. 30 is a perspective view of the second attachment member 61 as seen from the seat side. The second attachment member 61 is the same as the second attachment member 51, and includes a third connection member 1600 disposed on the outside and a fourth connection member 1602 disposed on the seat side. The third connecting member 1600 and the fourth connecting member 1602 are tightened and combined using six sets of bolts 1640, 1642, 1644, 1646, 1648 and 1650.

  The third connecting member 1600 includes a pivot support 1616 and a pivot 1612.

The pivot support portion 1610 is a metal plate having a flat outer surface.
The pivot support portion 1610 has a length extending above the right base pipe 156 and a width capable of forming the pivot hole 1614.

The third connecting member 1600 is configured with a pivot support portion 1610.
The pivot support 1610 is vertically attached to the right base pipe 154.
A pivot hole 1614 is formed above the pivot support portion 1610.

The pivot hole 1614 is formed in the upper part of the base pipe 156 in a direction orthogonal to the central axis of the base pipe 156.
The pivot hole 1614 is formed above the pivot support portion 1610, and the pivot hole 1616 is formed on the other end side (the chair side end portion) of the club 1B.

  The pivot 1612 is disposed on the upper portion of the base pipe 156 in a direction orthogonal to the central axis of the base pipe 156.

The pivot 1612 is formed by combining a pivot hole 1616 formed in the club 1B portion (the end on the chair side) and a pivot hole 1614 formed above the pivot support portion 1610, into the pivot hole 1614 and the pivot hole 1616. A shaft portion of a bolt constituting the pivot shaft 1612 is inserted, and a nut 1618 is fitted to the shaft portion to be fastened and fixed to be attached to the pivot support portion 1610 and the club 1B.
The pivot 1612 is configured with a bolt shaft (shank). A nut 1618 is fitted to a male screw cut in the shaft, and a hexagonal head and a nut 1618 project from one end of the shaft. The pivot support portion 1610 and the club 1B are tightened.

The fourth connecting member 1602 includes a pivot support part connecting member 1604.
The pivot support part connecting member 1604 includes a pipe fitting part 1620 configured to be fitted to the base pipe 156 of the chair 101, and a first pivot support part extending upward from the pipe fitting part 1620. A fixing part 1622 and a second pivot support part fixing part 1624 extending downward from the pipe fitting part 1620 are provided.

The first pivot support portion fixing portion 1622 is joined to the inner surface of the pivot support portion 1610 disposed outside the base pipe 156, and the bolt 1648 is formed in the female screw hole formed in the first pivot support portion fixing portion 1622. 1630 and a female screw hole 1632 formed in the pivot support portion 1610 are screwed into the pivot support portion 1610.
The second pivot support portion fixing portion 1624 is joined to the inner surface of the pivot support portion 1610 disposed outside the base pipe 156, and a bolt 1650 is connected to the female screw hole formed in the second pivot support portion fixing portion 1624. 1634 and a female screw hole 1636 formed in the pivot support portion 1610 are screwed into the pivot support portion 1610.

3. Handling Procedure of Sticks (a) Procedure for Attaching Sticks to Chair Next, a procedure for attaching the sticks 1A and 1B to the chair 101 will be described mainly with reference to FIGS. 32A to 35C.

The first connecting member 300 and the second connecting member 302 of the left first mounting member 30 are fastened by bolts 326, 328, 330, 332 and nuts 327, 329, 331, 333, and the front pipe on the left side of the chair 101. The pipe fitting portion 320 of the second connecting member 302 is fitted and fixed at a predetermined position 102. Similarly, the first connecting member 400 and the second connecting member 402 of the first mounting member 40 on the right side are fastened by bolts 426, 428, 430, 432 and nuts 427, 429, 431, 433, and the chair 101 The pipe fitting portion 420 of the second connecting member 402 is fitted and fixed at a predetermined position of the front pipe 104.
The first connecting member 300 and the second connecting member 302 of the first mounting member 30 and the first connecting member 400 and the second connecting member 402 of the first mounting member 40 are connected to the front pipe 102 and the front pipe 104 at the same height position. It is attached.

  Further, the third connecting member 1500 and the fourth connecting member 1502 of the second mounting member 51 on the left side are connected to the upper and lower first pivot support part fixing parts 1522 and the second pivot support part fixing part 1524 of the fourth connection member 1502. The pipe 1515 and the bolt 1550 are tightened, and the pipe fitting portion 1520 of the fourth connecting member 1502 is fitted and fixed at a predetermined position of the base pipe 154 of the chair 101. Similarly, the third connecting member 1600 and the fourth connecting member 1602 of the second mounting member 61 on the right side are the upper and lower first pivot support portion fixing portions 1622 and second pivot support portion fixing portions 1624 of the fourth connection member 1602. Are fastened by the bolts 1648 and 1650, and the pipe fitting portion 1620 of the fourth connecting member 1602 is fitted and fixed at a predetermined position of the base pipe 156 of the chair 101.

Next, a procedure for attaching the club 1A and the club 1B to the first mounting member 30, the first mounting member 40, the second mounting member 51, and the second mounting member 61 will be described.
First, the club 1 </ b> A is attached to the club insertion part 310 for the club of the first mounting member 30 and the third connecting member 1500 of the second mounting member 51 from the side where the protection part 903 is provided. Thereafter, the positioning pins 304 are arranged from above to a pair of upper and lower through holes 340 and 342 of the rod insertion portion 310 for the rod whose axis is formed on the same axis and a pair of upper and lower through holes 26a and 26b of the rod 1021. It is inserted and inserted. Then, when the annular head portion 304a of the positioning pin 304 is locked by the through hole 340, the rod 1A is positioned and easily fixed to the rod insertion portion 310 for the rod of the first mounting member 31.
The third connection member 1500 of the second attachment member 51 and the third connection member 1600 of the second attachment member 61 are attached to the left base pipe 154 and the right base pipe 156 at the same height position and front-rear position. .

  Similarly, the club 1 </ b> B is attached to the club insertion part 410 for the club of the first mounting member 40 and the third connecting member 1600 of the second mounting member 61 from the side where the protection part 901 is provided. Thereafter, the positioning pins 404 are arranged from above to a pair of upper and lower through-holes 440 and 442 of the rod insertion member 410 having a shaft center formed on the same axis and a pair of upper and lower through-holes 16a and 16b of the housing 1011. It is inserted and inserted. Then, when the annular head 404a of the positioning pin 404 is locked by the through hole 440, the club 1A is positioned and easily fixed to the club insertion part 410 for the club of the first mounting member 41.

  FIG. 31 is an explanatory diagram showing a use state of the wheelchair tension assist tool. The person 200 who pulls the chair 101 enters the region between the pair of left and right clubs 1A and 1B with the person 202 carried on the seat 110 of the wheelchair 100 sitting, and holds the grips 12, 22 Grasping by hand, the left rear wheel (tire) 140 and the right rear wheel (tire) 142 are grounded, and the lower part of the right front wheel (caster) 150 and the left front wheel (caster) 150 are grounded to the ground plane. By moving forward in this state, it is possible to assist the traveling movement of the wheelchair 100 during emergency evacuation such as a disaster or the traveling movement of the wheelchair 100 on rough terrain such as gravel roads or uphills.

In order to assist the towing person 200 when pulling the wheelchair 100, a belt 700a may be bridged between the club 1A and the club 1B as shown in FIG.
The belt 700a includes a belt piece 704a attached to the club 1A and a belt piece 702a attached to the club 1B, a connector 708a attached to the tip of the belt piece 704a, and a connector attached to the tip of the belt piece 702a. 706a is engaged and connected.
The towed person 200 places the belt 700a on the abdomen and pulls the wheelchair 100 forward.

(B) Procedure for removing the club from the chair Next, a procedure for removing the club 1A and the club 1B from the wheelchair 100 will be described.
The positioning pins 304 are extracted from the pair of upper and lower through-holes 340 and 342 of the rod insertion portion 310 for the rod and the pair of upper and lower through-holes 26a and 26b of the rod 1021, and the positioning of the rod 1A is released. Accordingly, the club 1A can be pulled out from the club insertion part 310 for the club of the first mounting member 30, and the club 1A can be easily detached from the wheelchair 100 by removing the bolt 1512 and the nut 1518 of the second mounting member 51. It is.

  Similarly, the positioning pin 404 is extracted from the pair of upper and lower through holes 440 and 442 of the rod insertion portion 410 for the rod and the pair of upper and lower through holes 16a and 16b of the rod 1011 so that the positioning of the rod 1B is released. Therefore, the club 1B can be pulled out from the club insertion part 410 for the club of the first mounting member 40, and the club 1B can be easily detached from the wheelchair 100 by removing the bolt 1612 and the nut 1618 of the second mounting member 61. It is.

(C) Procedure for changing the angle of the club 1 Next, a procedure for changing the angles of the club 1A and the club 1B will be described. This is because the angle of the club 1A and club 1B needs to be changed depending on the body shape of the person 200 who pulls the wheelchair 100.

  FIG. 32 is a perspective view showing a procedure for changing the angle of the club 1B. 33A and 33B are schematic views showing the positional relationship between the first connecting member 300 and the second mounting member 51 of the first mounting member 30. FIG. For example, when the figure of the person 200 who pulls the wheelchair 100 is large, as shown in FIG. 33A, it is necessary to increase the angles of the club 1A and club 1B.

  That is, when the angle of the club 1A is increased, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are loosened.

  Next, the first connecting member 300 of the first mounting member 30 rotates by a predetermined angle in the clockwise direction (the direction shown in FIG. 32A) with respect to the second connecting member 302. At that time, as shown in FIG. 33A (B), the positions of the bolts 326, 328, 330, and 332 are the movable range restriction long holes 312 and 314 of the first connecting member 300 and the movable range restriction long holes of the second connecting member 302. It moves slightly within the range R1, R2, R3, R4 where 322 and 324 overlap. Similarly, the housing 1011 rotates around the bolt 1518 that is the pivot shaft of the third connecting member 1500 of the second mounting member 51.

Thereafter, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are tightened.
As a result, the angle of the extending direction of the 1st attachment member 30 and the 2nd attachment member 51 becomes large, and the angle of the club 1A can be enlarged. The angle of the club 1B can be increased by the same procedure.

  Moreover, when the figure of the person 200 who pulls the wheelchair 100 is small, it is necessary to make the angle of the club 1A and club 1B small. When the angle of the club 1A is reduced, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are loosened.

  Next, the first connecting member 300 of the first attachment member 30 rotates by a predetermined angle in the counterclockwise direction (the direction opposite to the illustrated direction in FIG. 32A) with respect to the second connecting member 302. At that time, as shown in FIG. 33A (C), the positions of the bolts 326, 328, 330, and 332 are the movable range restriction long holes 312 and 314 of the first connection member 300 and the movable range restriction long hole of the second connection member 302. It moves slightly within the range R1, R2, R3, R4 where 322 and 324 overlap. Similarly, the housing 1011 rotates around the bolt 1518 that is the pivot axis of the second mounting member 51.

Thereafter, the bolts 326, 328, 330, 332 and the nuts 327, 329, 331, 333 of the first mounting member 30 are tightened.
As a result, the angle in the extending direction of the rod rod insertion portions 310 and 510 of the first attachment member 30 and the second attachment member 51 is reduced, and the angle of the rod 1A can be reduced. By the same procedure, the angle of the club 1B can be reduced.

4). Advantages of the Second Embodiment (a) Since the positioning pins 304 and 404 are inserted through the club 1A and club 1B, the club 1A and club 1B can be easily attached to the wheelchair 100 simply by inserting and removing the positioning pins. Can be detached.

  (B) Further, the first connecting members 300 and 400 of the first mounting members 30 and 40 are attached to the clubs 1A and 1B, and the axis Q11 connecting the pair of first mounting members 30 and 40 is used as a rotation axis. 1A and the club 1B are configured to be rotatable. The third connecting members 1500 and 1600 of the second mounting members 51 and 61 are rotatably attached to the club 1A and club 1B, and the club 1A and club 1B are configured to be rotatable. As a result, it is possible to easily set the angles of the club 1A and club 1B.

  (C) Further, the second mounting members 51 and 61 in addition to the first mounting members 30 and 40 hold the club 1A and club 1B and support the club 1A and club 1B at two points, so that they are supported at one point. In this case, the front leg side of the wheelchair 100 can be lifted more stably and the support strength can be increased.

The present invention is not limited to the embodiment described above, and various modifications can be made based on the idea of the present invention.
For example, as shown in FIG. 34, the pair of left and right clubs 1A, 1B are attached to the outside of the left and right front pipes 102, 104 and the left and right leg pipes 106, 108 of the wheelchair 100 instead of the inside (seat seat 110 side). Also good. In this case, for example, the arrangement of the first connection members 300 and 400 and the second connection members 302 and 402 of the first attachment members 30 and 40 is changed, and the first connection members 300 and 400 are arranged outside, and the second connection members The members 302 and 402 are disposed on the seat seat side.

  Moreover, in the said embodiment, although the 1st attachment members 30 and 40 are attached to the front pipes 102 and 104, it attaches to the leg pipes 106 and 108 instead of the front pipes 102 and 104, and fixes the clubs 1A and 1B. You may do it.

Further, a horizontal bar may be installed between the casing 10 and the casing 20 in the vicinity of the grip portions 12 and 22 side (the tension side) of the casings 10 and 20 of the casings 1A and 1B.

  The present invention is not limited to the above-described embodiment, and various modifications can be made based on the idea of the present invention. For example, the pair of left and right clubs 2 </ b> A and 2 </ b> B may be attached not to the outside of the left and right front pipes 102 and 104 and the left and right base pipes 154 and 156 but to the inside (the seat 110 side). In this case, for example, the arrangement of the first connecting members 300 and 400 and the second connecting members 302 and 402 of the first mounting members 30 and 40 is changed, and the first connecting members 300 and 400 are arranged on the seat side, The two connecting members 302 and 402 are disposed outside.

  As shown in FIG. 37, a horizontal bar 700 may be bridged between the club 1 </ b> A and the club 1 </ b> B to assist the towed person 200 when pulling the wheelchair 100. The shape of the cross section of the horizontal bar 700 is a substantially semicircular pipe whose central portion is curved in a convex shape. The left end 702 and the right end 704 of the horizontal bar 700 are crushed by pressing or the like to form a plate shape. Further, the left end portion 702 and the right end portion 704 are formed with a notch 703 and a notch 705 on the tension side, respectively.

  On the other hand, in the upper part of the vicinity of the grip portion 12 of the club 1A and the vicinity of the grip section 22 of the club 1B, as shown in FIG. A nut 710 is embedded, welded and fixed. Further, the embedding nut 710 is embedded in the club 1A at a position away from the position where the embedding nut 710 is embedded on the chair side by a dimension between the notch 703 and the notch 705 of the horizontal bar 700b. It is fixed by welding. When the horizontal bar 700b is used, the butterfly bolt 706b and the butterfly bolt 708b are loosely screwed into the embedded nuts 710 provided in the vicinity of the grip portion 12 of the club 1A and in the vicinity of the handle 22 of the club 1B, respectively. Is done.

  As shown in FIG. 38 (A), the horizontal bar 700b is arranged above the clubs 1A and 1B so as to be orthogonal to the clubs 1A and 1B and so that the notches 703 and 705 are on the tension side. Then, the horizontal bar 700b is moved to the pulling side until the notch 703 and the notch 705 hit the butterfly bolt 706b and the butterfly bolt 708b and are locked. Thereafter, with the notch 703 and the notch 705 engaged with the butterfly bolt 706b and the butterfly bolt 708b, the butterfly bolt 706b and the butterfly bolt 708b are tightened, and the horizontal bar 700b is fixed.

  When the horizontal bar 700b is not used, the butterfly bolt 706b and the butterfly bolt 708b are respectively screwed into the two embedded nuts 710 provided on the club 1A, and then the notch 703 and the notch 705 of the horizontal bar 700b. Is locked to the butterfly bolt 706b and the butterfly bolt 708b, the butterfly bolt 706b and the butterfly bolt 708b are tightened, and the horizontal bar 700b is fixed.

  Alternatively, as shown in FIG. 39, screw holes (not shown) are formed in advance in the left end portion 702b and the right end portion 704b of the horizontal bar 700b, and the screws 712 and 714 are inserted into the screw holes. The horizontal bar 700b may be attached between the club 1A and the club 1B by screwing it into a screw hole (not shown) formed in advance on each of the club 1A and the club 1B. .

  As shown in FIG. 40, the towed person 200 can easily pull the chair 1 with maneuvering wheel forward by placing the horizontal bar 700b on the abdomen.

As described above, the embodiment of the present invention has been disclosed in the above description, but the present invention is not limited to this.
That is, various modifications can be made to the embodiment described above with respect to the mechanism, shape, material, quantity, position, arrangement, etc., without departing from the scope of the technical idea and object of the present invention. Which are included in the present invention.

The wheelchair tension assist tool according to the present invention can be applied to a general wheelchair.

DESCRIPTION OF SYMBOLS 1 Wheelchair emergency assistance tool 1A, 1B Bar 10,20 Body 12,22 Grip part 14 24 Wheelchair attachment part 18,28 Protection part 16a, 16b, 26a, 26b Through-hole 30,40 1st attachment member 50,51,60, 61 Second mounting member 100 Wheelchair 102,104 Front pipe 106,108 Leg pipe 110 Seat seat 112,114 Foot plate 116,118 Arm pipe 120 Cross pipe 122,124 Elbow 126 Back band 128,130 Backrest pipe 132,134 Grip 140,142 Rear wheel (tire)
150,152 Front wheels (casters)
154, 156 Base pipe 160 Brake lever 162 Brake shoe 200 Towing person 300 First connecting member 302 Second connecting member 301, 303 surface (sliding surface)
304 Locating Pin 304a Toroidal Head 304b Columnar Body 310 Rod Rod Body Insertion Port 312, 314, 322, 324 Movable Range Restriction Slot 320 Leg Pipe Fitting Portion 320 Pipe Fitting Portion 326, 328, 330, 332 Bolt 326a, 328a, 330a, 332a Axes 327, 329, 331, 333 Nut 340, 342, 440, 442 Through hole 400 First connecting member 402 Second connecting member 401, 403 surface (sliding surface)
404 Positioning Pin 404a Toroidal Head 404b Columnar Body 410 Rod Rod Body Insertion Part 412, 414, 422, 424 Movable Range Restriction Slot 420 Leg Pipe Fitting Part 420 Pipe Fitting Part 426, 428, 430, 432 Bolt 426a, 428a, 430a, 432a Axes 427, 429, 431, 433 Nut 500 Third connecting member 502 Fourth connecting member 501, 503 surface (sliding surface)
510 Rod insertion portion 512, 514, 522, 524 Movable range restriction long hole 520 Base pipe fitting portion 526, 528, 530a, 532 Bolt 526a, 528a, 530a, 532a Shaft 527, 529, 531, 533 Nut 600 Third connecting member 602 Fourth connecting member 601, 603 surface (sliding surface)
610 Rod insertion part 612, 614, 622, 624 Range of movement restriction long hole 620 Base pipe fitting part 626, 628, 630, 632 Bolt 626a, 628a, 630a, 632a Shaft 627, 629, 631, 633 Nut 700 Belt 702, 704 Belt piece 706, 708 Connector 700a Belt 702a, 704a Belt piece 706a, 708a Connector 700b Horizontal bar 702b Left end 704b Right end 706b, 708b Butterfly bolt 703, 705 Notch 710 Embedded nut 712 , 714 Screw 1500 Third connecting member 1502 Fourth connecting member 1504 Pivot support part connecting member 1510 Pivot support part 1512 Pivot 1514, 1516 Pivot hole 1518 Nut 1520 Pipe fitting part 1522 First pivot support Part fixing part 1524 second pivot support part fixing part 1530, 1532, 1534, 1536 female screw hole 1540, 1542, 1544, 1546, 1548, 1550 bolt 1600 third connection member 1602 fourth connection member 1604 pivot support part connection member 1610 Pivot support part 1612 Pivot axis 1614, 1616 Pivot hole 1618 Nut 1620 Pipe fitting part 1622 First pivot support part fixing part 1624 Second pivot support part fixing part 1630, 1632, 1634, 1636 Female screw holes 1640, 1642, 1644, 1646 , 1648, 1650 Bolt C Central axis of the wheelchair L Central axis of the first mounting member (second mounting member) Q1 Axis connecting the pair of first mounting members (rotating shaft)
Q2 Axis connecting the pair of second mounting members (rotating shaft)
R1, R2, R3, R4 Range in which the movable range regulating long hole of the first connecting member and the movable range regulating long hole of the second connecting member overlap each other R5, R6 The movable range regulating long hole of the third connecting member and the fourth Range where the movable member restriction slot of the connecting member overlaps

Claims (3)

A club to pull the wheelchair,
A pair of left and right first mounting members for detachably mounting the club on at least one of the left and right front pipes and the left and right leg pipes of the wheelchair;
As for the said stick, a grip part is formed in one end part of a housing, and a wheelchair attachment part is formed in the other end side of a housing,
The first mounting member is configured to be inserted through a wheelchair mounting portion of the shaft of the club, and configured to be attached to and detached from the shaft of the club by inserting and removing a positioning pin.
The first attachment member is configured to be joined to at least one of a front pipe and a leg pipe of the wheelchair and a first connection member configured to be joined to at least one of a front pipe and a leg pipe of the wheelchair. Constituted by a second connecting member;
The first connecting member and the second connecting member are connected with at least one of a front pipe and a leg pipe interposed therebetween,
The wheelchair tensioning aid is characterized in that the first mounting member is configured to change the angle formed by the club and the horizontal plane by rotating the first connecting member and / or the second connecting member. A pair of left and right second mounting members for supporting the housing of the club, removably mounted on a base pipe that connects the left and right front wheels and rear wheels of the wheelchair;
The second mounting member is located at the other end of the housing; the first mounting member is located between the grip portion of the housing and the second mounting member;
The second mounting member includes a third connecting member configured to be joined to a base pipe of the wheelchair and a fourth connecting member configured to be joined to a base pipe of the wheelchair.
The said 2nd attachment member is comprised so that rotation of a 3rd connection member and / or a 4th connection member can change the angle which a club makes and a horizontal surface, The structure of Claim 1 characterized by the above-mentioned. Wheelchair pulling aids. A pair of left and right second mounting members for supporting the housing of the club, removably mounted on a base pipe that connects the left and right front wheels and rear wheels of the wheelchair;
The second mounting member is positioned on the other end side of the housing, and the first mounting member is positioned between the grip portion of the housing and the second mounting member.
The second mounting member comprises a pivot portion configured to pivot the housing at the other end of the housing;
The said 2nd attachment member is comprised so that rotation of a 3rd connection member and / or a 4th connection member can change the angle which a club makes and a horizontal surface, The structure of Claim 1 characterized by the above-mentioned. Wheelchair pulling aids.

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