JP2003310664A - Wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair allowing lateral turning and tilting operation by a helper of foot plates energized and turned into erected states in a rear side of a wheelchair. <P>SOLUTION: A footrest 30 is provided with the foot plates 31 provided in a front part side of the wheelchair A and turned around a pair of turning axes in a fore and aft direction. In the foot plates 31, downward turning from laterally tilted positions is prevented so as to bring mutual tip sides 31a closer, they are constantly energized so as to turn the tip sides 31a upward into erected states, and the tip sides 31a turned upward and erected by energization are prevented from turning toward sides of the wheelchair A from erected positions. The wheelchair A has operating means 40 for laterally tilting the erected foot plates 31 against the energization, and it is provided with an operating part 50 operating the operating means 40 in a position in a rear side of the wheelchair A that is reachable by hands of the helper supporting movement of the wheelchair A. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair that is easy to get on and off and is easily assisted by an assistant.

[0002]

2. Description of the Related Art Conventional wheelchairs typically include a footrest having a foot plate on which a person who sits on a seat of the wheelchair and conveniently uses the wheelchair can put his / her feet on the seat. There was something.

However, in this type of wheelchair, the foot plate of the footrest hinders a person sitting on the seat of the wheelchair and using the wheelchair from getting on and off the wheelchair. , For example,
The foot plate in the footrest is rotated by hand from the front side of the wheelchair to the side, or the foot plate on the front side of the wheelchair is lifted so as to be raised by hand. There was a need.

Further, in this type of wheelchair, the foot plate of the footrest is placed in such a state that the foot of a person who sits on the seat of the wheelchair and can use the wheelchair can be conveniently placed. That is, the foot plate that has been manually turned from the front side of the wheelchair to the side is turned by hand again to the front side of the wheelchair, or the tip side of the foot plate is erected upward by hand. -It was necessary to perform processing such as rotating the tip side of the gut downward by hand again.

[0005]

However, when a person who sits on a seat of a wheelchair and uses the wheelchair himself / herself gets in and out of the wheelchair, the foot plate in the footrest is always moved to the front side of the wheelchair. From the side to the side by hand, or by turning the side footplate on the front side of the wheelchair by hand, and by pushing the tip side of the footplate upward. In many cases, it is often difficult or difficult to perform an operation such as turning upright and turning the tip side of the foot plate downward by hand. Was carried out by a caregiver who supported the movement by the wheelchair.

[0006] However, when operating such a foot plate, the caregiver needs to go around to the front side of the wheelchair one by one and perform each of the above operations while leaning forward on the front side of the wheelchair. There was a trouble that required labor.

Further, there is a problem that it takes a long time to operate the foot plate, and it is difficult to assist the wheelchair smoothly.

[0008] Further, in the case where the passage for moving the wheelchair is narrow and it is difficult for the caregiver to turn around the side of the wheelchair from the rear side of the wheelchair and move to the front side of the wheelchair, or to the front side of the wheelchair. When there are various obstacles, it is difficult for the caregiver to operate the foot plate.

The present invention solves the above-mentioned problem in the conventional wheelchair, and the foot plate which is easy to get on and off and which is biased and rotated in the standing state is supported by the caregiver against the bias. The main purpose of the wheelchair is to provide a wheelchair located on the rear side of the wheelchair so that the wheelchair can be tilted sideways and operated.

[0010]

In order to achieve the above object, the invention according to claim 1 is a wheelchair having a front footrest, wherein the footrest provided in the wheelchair is the wheelchair. Is equipped with foot plates that are respectively rotated with a pair of rotation axes in the front-rear direction in the front-rear direction, and the foot plates are laid sideways so that their tip ends can approach each other. While being prevented from turning downward from the collapsed position,
The tip end side is always urged so that the tip end side is rotated and erected upward, and the tip end side that is rotated and erected upward by the urging is further rotated from the standing position toward the side of the wheelchair. In addition, there is an operating means for tilting each of the foot plates, which are erected with the tip end side upward, against the urging force in a lateral direction. At the same time, an operating portion for operating the operating means individually or simultaneously is provided at a position on the rear side of the wheelchair within a reach of a caregiver who supports movement by the wheelchair. It is as a wheelchair.

In the wheelchair constructed as above,
Since the foot plate provided in the wheelchair is constantly urged so that the tip side of the wheelchair is rotated and erected upward, the foot plate moves the tip side of the foot plate by the urging. It is turned upright and raised upright.

The foot plate, which is pivotally erected with its tip end side facing upward by the bias, is located on the rear side of the wheelchair by an assistant who supports the movement of the wheelchair. It can be easily and surely pushed down sideways against the force.

In order to achieve the above object, the invention according to claim 2 is a wheelchair having a footrest in a front portion thereof, wherein the footrest provided in the wheelchair includes:
A pair of mounting shafts provided on the front side of the wheelchair so as to project forward are provided with foot plates rotatably provided, respectively, and the foot plates are also provided.
Are prevented from pivoting downward from the position where they are laid sideways so that the tips of them approach each other, and they are always urged to stand up with their tips pointing upward. And the tip end side that is rotated and erected upward by the urging is prevented from rotating further from the erected position toward the side of the wheelchair. Has an operating means for tilting each of the foot plates that are erected upright sideways against the bias, and an operating portion for operating the operating means individually or simultaneously. A wheelchair is provided on the rear side of the wheelchair so that it can be reached by a caregiver who supports movement by the wheelchair.

In the wheelchair constructed as above,
In addition to the features described above, a footrest provided with a footplate can be constructed by rotatably assembling the footplate on the mounting shaft.

Next, the invention according to claim 3 is, in the invention according to claim 1 or claim 2, a position where the operation portion is within a reach of a person who sits on the seat of the wheelchair and uses the wheelchair. It is a wheelchair that is equipped with.

In the wheelchair constructed as above,
In addition to the above-mentioned features, a person who sits on the seat of the wheelchair and uses the wheelchair himself resists the urging by a foot plate which is erected by the urging so that the tip side thereof is turned upward. It can be easily and surely pushed down sideways.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A wheelchair according to a typical embodiment of the present invention will be described in detail below. 1 to 15
Shows a wheelchair A according to an exemplary embodiment,
FIG. 1 shows each frame body 1 of the wheelchair A according to the embodiment.
2 is a state in which the front end side 31a of the foot plate 31 is urged and rotated upward to be erected when 0 is separated from the foot plate 31 in the so-called use state, and FIG. The side view shows the state in which the is pushed down sideways against the bias. Figure 3
Is a state in which the wheelchair A is in such a state, that is, a state in which the frame body 10 is separated from each other to be in a so-called use state, the tip side 31a of the foot plate 31 is urged and rotated upward to stand up, FIGS. 4A and 4B respectively show the front side of the wheelchair A in this state in which the foot plate 31 is laid sideways against the bias. FIG. 5 shows the wheelchair A in the above situation, that is, the state in which the main parts when the respective frame bodies 10 are pulled apart to be in a so-called usage state are viewed from the front side in a vertical cross-section.
FIG. 6 shows a cross-section of a main part of the frame bodies 10 and 10 in a state where they are close to each other and is viewed from the front side. Figure 7
The principal part which fractured | ruptured and expanded a part of typical operation part 50 in the wheelchair A which concerns on the said typical embodiment is seen and shown from the side surface side. 8 and 9 show the footrest 30.
FIG. 8 shows a part of the footrest 30 in FIG. 8 in a state in which the tip side 31a of the footplate 31 is rotated and erected upward, and in FIG. 9, the footplate 31 is biased. It shows a state in which it has been laid sideways against it. FIG. 10 shows a typical embodiment of the operation unit 50, which is a WW line in FIG.
The main part is shown in cross section at the line position as viewed from above. Further, FIG. 11 shows a state taken along the line VV in FIG. 7. FIG. 12 shows the tip side 3 of the foot plate 31.
Footrest 3 in a state of standing upright by turning 1a upward
0, and FIG. 13 shows the footrest 3 in a state in which the footplate 31 is laid sideways against the bias.
The main parts of 0 are partially broken to support pipe part 1
It is shown from the 0 g side. FIG. 14 is an enlarged view of a main part of the footrest 30 in a state where the tip side 31a of the foot plate 31 is rotated and erected upward, as seen from a side surface side by breaking a part of the leg pipe part 10j. FIG. 15 is an enlarged view of the main part of the footrest 30 in a state in which the distal end side 31a of the foot plate 31 is turned upright and is viewed from the back side of the foot plate 31.

A typical wheelchair A according to this embodiment
Is a wheelchair A provided with a footrest 30 in the front part, and the footrest 3 provided in the wheelchair A.
The wheelchair 0 is equipped with a foot plate 31 on the front side of the wheelchair A, which is rotated by a pair of rotation axes extending in the front-rear direction.
1 is prevented from rotating downward from a position in which the tip ends 31a of the two are brought sideways toward each other, and is always attached so that the tip ends 31a are turned upward. The tip end side 31a, which is biased and is pivotally erected upward by the urging, is configured to be prevented from pivoting further from the erected position toward the side of the wheelchair A. Further, the wheelchair A has the tip end side 31a.
An operating means 40 is provided corresponding to each of the foot plates 31 for tilting the respective foot plates 31 which are erected with their sides upside down against the biasing force in a lateral direction. The operation unit 50 for operating each of the 40 individually or simultaneously is the wheelchair A.
It is provided at a position on the rear side of the vehicle and within reach of a caregiver supporting the movement by the wheelchair A.

Another typical wheelchair A according to this embodiment is a wheelchair A provided with a footrest 30 on the front part thereof, and the footrest 3 provided on the wheelchair A.
0 has a foot plate 31 rotatably provided on each of a pair of attachment shafts 32 provided on the front side of the wheelchair A so as to project forward,
The foot plates 31 are prevented from pivoting downward from the position in which they are laid sideways so that the tip ends 31a of the foot plates 31 come close to each other, and moreover, the foot plates 31 turn upward with the tip ends 31a directed upward. Is always energized by
It is configured to prevent the tip end side 31a that is rotated and erected upward by the biasing from further rotating from the erected position toward the side of the wheelchair A. You, the said wheelchair,
An operating means 40 is provided corresponding to each of the foot plates 31 for tilting the respective foot plates 31 which are erected with the tip end side 31a upwards in a lateral direction against the bias. An operating unit 5 for operating the operating means 40 individually or simultaneously
0 is provided on the rear side of the wheelchair A at a position within reach of a caregiver supporting the movement by the wheelchair A.

In the wheelchair A according to the embodiment, the footrest 30 having the foot plate 31 having the above-mentioned structure, the operation means 40 for causing the foot plate 31 to perform the operation, and the operation means 40 for operating the operation means 40 are provided. Any type of wheelchair A may be used as long as it is a wheelchair A configured to include the operation unit 50. For example, electric type wheelchairs, hand-held type wheelchairs, folding type wheelchairs, non-foldable type wheelchairs, wheelchairs with two pairs of paired wheels, type with a pair of large wheels and a pair of small wheels. Configured as a wheelchair.

Further, the operation means 40 provided in the wheelchair A according to this embodiment is provided with the foot plate 31 which is always urged and erected so that its tip end side 31a is directed upward. Any kind of operation means 40 may be used as long as it is an operation means 40 for tilting sideways against a force, for example, the foot plate 31.
Is constructed by using various operating means 40 such as a traction means for tilting the foot plate 31 sideways against the bias and a pushing means for tilting the foot plate 31 sideways against the bias. More specifically, the operating means 40 is, for example,
The operation wire 41 and the operation rod are used.

The operating portion 50 provided in the wheelchair A according to this embodiment can rotate the foot plate 31 in the direction in which the foot plate 31 is laid sideways against the bias by the operating means 40. If it is, it may be of any type.

The operation unit 50 provided in the wheelchair A according to this embodiment is provided on the rear side of the wheelchair A within a reach of a caregiver who supports movement by the wheelchair A. For example, even if the helper is on the rear side of the wheelchair A, such as the rear side of the grip portion 10h of the wheelchair A, the side portion of the intermediate portion of the wheelchair A, the front pipe portion 10c of the wheelchair, or the like. The wheelchair A can be operated and provided on the side of the front side of the wheelchair A or the like.

Further, the operating section 50 is provided with the operating means 40, 4 provided on each of the foot plates 31, 31.
The foot plates 31 and 31 may be separately operated by providing the foot plates 31 and 31, respectively, and one operating means 40 provided for each foot plate 31 and 31 may be provided. The operation unit 50 may be operated simultaneously.

In the wheelchair A constructed as described above, the foot plate 31 provided in the wheelchair A is provided.
However, the foot plate 31 is always urged so that its tip end side 31a is rotated and erected upward, and the foot plate 31 rotatably erected with the tip end side 31a upward is rotated by such urging. An assistant who supports the movement by A is on the rear side of the wheelchair A and can easily and surely lay down sideways against the urging force, and the assistant takes the front side of the wheelchair A one by one. It is possible to eliminate the need for the operation of standing up and tilting the foot plate by hand, which is performed while wrapping around and leaning over.

In addition, when the passage for moving the wheelchair A is narrow and it is difficult for the caregiver to move around the side of the wheelchair A from the rear side of the wheelchair A and move to the front side of the wheelchair A, or the wheelchair concerned. Even when various obstacles are present on the front side of A, the foot plate 31 is easily and surely placed in a rotation standing state with its tip end side 31a facing upward, and the rotation standing state. The foot plate 31 located at can be laid down sideways.

Further, in the wheelchair A according to the other embodiment, the footrest 30 provided in the wheelchair A is provided on the front side of the wheelchair A so as to protrude forward. The foot plate 31 is rotatable with respect to the pair of mounting shafts 32, so that the foot plate 31 is rotatable with respect to the mounting shaft 32 in accordance with the above-mentioned features. The footrest 30 including the foot plate 31 can be configured by assembling the footrest 31.

Further, in the wheelchair A having a structure in which the operation section 50 is provided at a position where a person who sits on the seat 1 of the wheelchair A and who uses the wheelchair A can reach, the seat of the wheelchair A is The person who sits at position 1 and uses the wheelchair A himself easily and reliably tilts the foot plate 31, which is erected to rotate upward with the tip side 31a upward by the bias, against the bias sideways. be able to.

The wheelchair A according to this embodiment is typically a seat 1 on which a user sits, and this seat 1
A pair of rear side wheels 2 and a pair of front side wheels 2 provided on the sides of the vehicle, a backrest 4, and a footrest 30.
And more typically, a seat 1, a pair of main wheels 2a as large wheels and casters 2b as small wheels provided on the side of the seat 1, an armrest 5, and the like. A foot that is configured to include at least a backrest 4 and a footrest 30 and that is rotated by a pair of rotation axes that are on the front side of the wheelchair A and that are oriented in the front-rear direction. The plate 31 or the foot plate 31 rotatably provided on each of the pair of mounting shafts 32 provided on the front side of the wheelchair A so as to protrude forward. The foot plate 31 is prevented from rotating downward from a position where the foot plates 31 are laid sideways so that the distal ends 31a of the foot plates 31 come close to each other, and the distal ends 31a are upwardly rotated. As described above, the tip side 31a which is always urged by the urge and is rotated and erected upward by the urge is prevented from further rotating from the erected position toward the side of the wheelchair A. In addition, each foot plate 3 is erected with the tip side 31a facing upward.
Operation means 40 for tilting sideways 1 against the urging force is provided corresponding to each of the foot plates 31, and an operation for operating the operation means 40 individually or simultaneously. The part 50 is provided on the rear side of the wheelchair A at a position accessible by a caregiver supporting the movement by the wheelchair A.

A typical example of the wheelchair A according to this embodiment will be specifically described. A wheelchair A as a typical example of this is configured to include a pair of frame bodies 10 and 10. That is, the one-side frame body 10 ′ provided with each wheel 2, 2, typically, a large wheel as the main wheel 2 a and a small wheel as the caster 2 b, and similarly each wheel 2,
2. Typically, the other side frame body 10 ″ having a large wheel as a main wheel 2a and a small wheel as a caster 2b
And a folding mechanism for pulling the two apart conveniently and bringing them closer together so that they can be folded together as necessary.

Such a folding mechanism is an example of various folding mechanisms, for example, a double brace type folding mechanism in this embodiment, which is rotatably assembled at the intersection and has one lower end. At the one side frame body 10 ′ and the other lower end portion rotatably assembled to the other side frame body 10 ″ at a pair of front side crossbar members 21, 21 and an intersecting portion. A pair of rear side cross rotatably assembled, one lower end of which is rotatably assembled to the one frame body 10 'and the other lower end of which is rotatably assembled to the other frame body 10 ". The bar members 22, 22 (generally referred to as "plow"), the front side crossbar members 21, 21 and the rear side crossbar portion along the traveling direction of the wheelchair A. Seat pipe is fixed to the upper portion in the respective same side in 22, 22 23, 23
Is provided.

Between the frame body 10 and the seat 1 on the rear side of the seat 1, which is composed of the seat material 1a provided on both side edges of the seat pipe 23 having the above-mentioned structure. In the wheelchair A provided with the backrest 4 provided over and the footrest 30 provided on the front side of each of the frame bodies 10 and 10,
When the respective frame bodies 10 and 10 are moved in the directions in which they are separated from each other, the frame members 10 and 1 corresponding to the respective seat pipes 23 and 23 are in the required pulling positions.
It is configured to be supported by 0 to prevent the frame bodies 10 and 10 from moving in the separation direction. Further, when the sheet material 1a is pulled upward, the seat pipes 23, 23 supported by the frame bodies 10, 10 are pulled upward so as to approach each other, and the seat pipe 23 is fixed. Each of the frame bodies 10, 1 assembled to the front side crossbar member 21 and the rear side crossbar member 22
The configuration is such that 0s are moved toward each other.

The frame body 10 according to this embodiment
Is a vertically oriented back pipe portion 1 that supports the main wheels 2a.
0a and a vertically oriented bagrest pipe portion 10 that is a grip portion 10h that extends upward from the back pipe portion 10a and has an upper end side curved rearward.
b, a vertically-oriented front pipe portion 10c provided on the front side of the wheelchair A, a curve extending laterally from the upper side of the front pipe portion 10c, and welded to the main wheel 2a side of the bag rest pipe portion 10b. The arm pipe portion 10d, the side surface of the bag pipe portion 10a that faces the front pipe portion 10c below the arm pipe portion 10d, and the surface of the front pipe portion 10c on the side of the seat 1 that are welded to each other to form the seat pipe 23. A side seat side pipe portion 10e that receives the seat side, a leg pipe portion 10j that is curved from the front end side of the seat side pipe portion 10e and extends obliquely downward and forward, a rear side surface of the leg pipe portion 10j, and the front pipe portion. Horizontal welded to the surface of the seat 1 side at the bottom of 10c And Kino support pipe portion 10g, the and the lower portion of the front pipe portion 10c so as to extend from the support pipe portion 10g bag pipe portion 10
a base pipe portion 10f which is welded to the lower end surface of a and is provided laterally, and a tapping bar portion 10i which is provided so as to extend from the bag pipe portion 10a further rearward from the base pipe portion 10f. It has a configuration including and.

In the frame body 10 having such a structure, the hub 3 is provided on the relatively lower side of the bag pipe portion 10a, and the main wheel 2a provided with the hand rim 7 is rotatably provided. A thick plate-shaped attachment member 8 is provided on the lower side of the front pipe portion 10c.
Is vertically welded, and a mounting pipe 9 is vertically welded to the mounting member 8, and a caster 2b having a centerline of the mounting pipe 9 as a rotation axis is rotatable below the mounting pipe 9. Is installed in.

Next, the arm pipe portion 10d is provided with an arm rest 5, and a brake 60 is provided on the seat side pipe portion 10e in front of the main wheel 2a. The brake lever 61 of the brake 60 is provided. By rotating the wheelchair A in the front-rear direction, the pressure contact portion 62 of the brake 60 is rotated.
The pressure contact with the main wheel 2a and the elimination of the pressure contact state are performed.

The brake 60 is typically
A configuration is provided in which a brake lever 61 of the brake 60 is provided at a position within reach of both an assistant who is behind the wheelchair A and supports movement in the wheelchair A and a person who gets in the wheelchair A and moves. There is.

Further, a part of the base pipe portion 10f between the front pipe portion 10c and the bag pipe portion 10a is a turning pipe portion 10f ', and the base pipe portion is welded to the front pipe portion 10c. 10f and the base pipe portion 10f welded to the bag pipe portion 10a are rotatably assembled.

Further, in the seat side pipe portion 10e,
A support member 63 for supporting the seat pipe 23 is fixed, and the support member 63 fixed to the seat side pipe portion 10e is gradually moved downward by separating the frame bodies 10 and 10 from each other. The seat pipes 23, 23 are supported by the support member 63 so as to prevent the seat pipes 23, 23 from moving downward from the support member 63.

The support members 63 are provided on the front side and the rear side of the seat side pipe portion 10e, and are fixed to the seat side pipe portion 10e by a fastener 64 composed of bolts and nuts. The supporting member 63 is provided with an arcuate groove-shaped recess 63a smaller than a semicircle for receiving the pipe-shaped seat pipe 23 on the upper side.

The front side crossbar member 21 has two
It is composed of a long thin plate-like material, and is rotatably assembled by a shaft material 24 at the intersecting portions, and one lower end of the rotating pipe portion 10f in the one-side frame body 10 '. The other lower end is welded to the front side of the turning pipe portion 10f 'in the other side frame body 10 ", and the one upper end is attached to the one seat. The other upper end of the pipe 23 is welded to the other seat pipe 23.

Further, the rear side crossbar member 22 has two
It is composed of a long thin plate-like material, and is rotatably assembled by a shaft material 24 at the intersecting portions, and one lower end of the rotating pipe portion 10f in the one-side frame body 10 '. The other lower end is welded to the rear side of the rotating pipe portion 10f 'of the other side frame body 10 ".
The upper end of the rear side crossbar member 22 on the same side as the one front side crossbar member 21 is welded to the seat pipe 23 to which the front side crossbar member 21 is welded, and The other front side crossbar member 21
The upper end portion of the rear side crossbar member 22 on the same side as is welded to the seat pipe 23 welded to the front side crossbar member 21, and each seat pipe 23 is the seat side pipe. The guide plate 25 is configured to be provided in parallel to the portion 10e, and the other end portion of the guide plate 25 rotatably assembled with the shaft member 26 to a position above the intersection portion of the rear side crossbar member 22 is the back portion. The pipe member 10a is rotatably mounted on the shaft member 26.

On each of the seat pipes 23 fixed to the front side crossbar member 21 and the rear side crossbar member 22, both side edge portions of the seat material 1a constituting the seat 1, that is, the traveling direction of the wheelchair A. The sheet 1 is configured by fixing the edges along the.

The front side crossbar member 21 and the rear side crossbar member 22 are the one-side frame body 1
0'and the other side frame body 10 "are movable to a state where they are close to each other and a state where they are separated from each other, so that the one side frame body 10 'and the other side frame body 10" are separated from each other. When the sheet material 1a of the seat 1 is unfolded and the sheet material 1a of the seat 1 is unfolded, the seat pipe 23 is supported by the support member 63 of the seat side pipe portion 10e, and the guide plate 25 is arranged substantially sideways. is there.

The front side crossbar member 2 is also provided.
1 and the rear side crossbar member 22 bring the one side frame body 10 ′ and the other side frame body 10 ″ in the above state close to each other, for example, by pulling up the central portion of the sheet material 1 a of the seat 1. The configuration is such that it can approach the folded state.

A backrest 4 is provided between the backrest pipe portions 10b and 10b in each of the frame bodies 10 and 10, and the backrest 4 is provided at both side edges of the backrest sheet material 4a, for example, the backrest. It is configured to be fixed to the pipe portion 10b.

The skirt guard 11 is provided between the back pipe portion 10a and the front pipe portion 10c above the seat side pipe portion 10e in the frame body 10.

A leg rest 6 is provided between the leg pipe portions 10j of each of the frame bodies 10 and 10, and the leg rest 6 is made of a leg rest sheet material 6a.
Both side edge parts of the leg pipe parts 10j, 10
It is configured to be fastened by being wound around j.

The leg pipe portion 10j may be provided, for example, so that the length thereof can be adjusted. In the illustrated example, the leg pipe portion 10j is provided so as to project forward from the front pipe portion 10c. Pipe body 10j '
And the auxiliary leg pipe 12 provided on the lower side of the leg pipe body portion 10j ′, the leg pipe portion 10j is configured, and more specifically, the auxiliary leg is provided at the lower end portion of the leg pipe body portion 10j ′. Pipe 1
The leg pipe portion 10j that constitutes the footrest 30 is configured by inserting the 2 in a removable manner and supporting the auxiliary leg pipe 12 in a stopped state at a predetermined insertion position.

The auxiliary leg pipe 12 of which the length is adjustable in the leg pipe portion 10j has an inclined surface 12 at the inner end.
and a pressure contact piece 13 having a circular cross section, which has an inclined surface 13a which is slid and moved in contact with the inclined surface 12a.
Is provided on the inner end side of the auxiliary leg pipe 12,
A bolt 15 having a flange 15a that contacts the opening end of the auxiliary leg pipe 12 is screwed into the female screw member 14 provided in the press contact piece 13, and the press contact piece 13 is inclined by the screwing of the bolt 15. By moving along the surface 12a, the press contact piece 13 and one side surface of the auxiliary leg pipe 12 are pressed against the inner surface of the leg pipe body portion 10j ', whereby the leg pipe body portion 10j' is contacted. The auxiliary leg pipe 1 inserted
2 is configured to remain fixed in the insertion position.

The footrest 30 provided on the front side of each of the frame bodies 10 and 10 includes a pair of foot plates 31 which are respectively rotated by a pair of rotation axes in the front-rear direction of the wheelchair A, and the foot. Plate 31
A configuration that prevents downward rotation from a position in which the tip ends of the two are brought sideways to approach each other,
The tip side 31a of the foot plate 31 is constantly urged so as to be rotated and erected upward, and the tip side 31a of the foot plate 31 that is rotatably erected upward by the urging is moved from the erected position. Further, the wheelchair A is configured so as to be prevented from rotating toward the side. Then, the foot plate 31 constituting the footrest 30 is urged so as to turn upright with the tip side 31a facing upward.
Is required by the operation means 40 for tilting the tip end side 31a of the foot plate 31 sideways against the bias and the operation part 50 for operating the operation means 40 individually or simultaneously. Accordingly, the tip ends 31a of the respective members can be laid sideways so as to approach each other.

More specifically, the footrest 30 is provided with a foot plate 31 rotatably with respect to a mounting shaft 32 provided so as to project forward from the lower side of the leg pipe portion 10j. Moreover, a part of the foot plate 31, which is tilted sideways so that the front end sides 31a are brought closer to each other, comes into contact with the leg pipe portion 10j to prevent the foot plate 31 from rotating further downward. When the contact support portion 34 and the tip end side 31a thereof are rotated and erected upward, a part of the foot plate 31 comes into contact with the contact support portion 34 to prevent the foot plate 31 from further rotating toward the side of the wheelchair A. Inversion prevention unit 3
5 and, further, is provided with a biasing means 33 for biasing the foot plate 31 so that the tip side 31a of the foot plate 31 turns upward.

The foot plate 31 which constitutes the foot rest 30 includes the leg pipe portions 10j and 10j.
j, more specifically, the leg pipe body 10j ′.
The auxiliary leg pipe 12 integrally provided in the lower part of the
When the foot plate 31 is laid sideways with respect to the pipe-shaped mounting shafts 32, 32 provided so as to project from the lower side of the front side 12 to the front side 3,
1a are rotatably provided so as to be close to each other, and a bearing portion 31b having a kamaboko shape is provided so as to penetrate through a hole 31j into which the mounting shaft 32 is inserted in the longitudinal direction.
And a plate portion 31c for mounting a foot are integrally provided.

Here, the foot-mounting plate portion 31c constituting the foot plate 31 has a substantially quadrangular shape wider than the length of the bearing portion 31b, more specifically, a substantially rectangular shape, and the kamaboko is used. The bearing portion 31 below the hole 31j in the bearing portion 31b having the shape of
The plate portion 31c and the bearing portion 31b are integrally formed in a state where a part of the lower portion of the plate portion 31b along the longitudinal edge is inserted into the edge portion of one short side of the plate portion 31c. Moreover, when the foot plate 31 is rotatably assembled to the mounting shaft 32, the width of the short side is configured so that a part of the plate portion 31c contacts the leg pipe portion 10j. is there.

The foot plate 31 includes the bearing portion 3
When the end face 31f of the plate portion 31c, which is formed from both side end faces of 1b in the front-rear direction, collapses the foot plate 31 in the lateral direction, the leg pipe portion 10j, more specifically, the auxiliary In contact with the contact bearing portion 34 configured as the surface of the leg pipe 12,
The foot plate 31 is provided at a position that prevents the foot plate 31 from moving further downward, and when the front end side 31a of the foot plate 31 is rotated and erected upward, the surface of the plate portion 31c is increased. The side surface 31g is located above the mounting shaft 32, and the leg pipe portion 10j is provided.
The surface of the plate portion 31c is provided with a required distance between the extended virtual surface of the front side surface 31g of the plate portion 31c and the mounting shaft 32 so as to be in an upright state in contact with the inversion prevention portion 35 configured as the surface.

Further, a concave portion 31d facing the longitudinal direction is provided on the lower surface of the bearing portion 31b having a semi-cylindrical shape, which is a concave portion 31d of the mounting shaft 32 which is exposed. The concave portion 31d is exposed to the concave portion 31d. A stopper 31e such as a screw is detachably provided on the mounting shaft 32 so that the foot plate 31 that is detachably assembled to the mounting shaft 32 does not come off from the mounting shaft 32, and the foot is The plate 31 is configured to be rotatable as described above, that is, the plate 31 can be vertically erected with the front end side 31a facing upward and horizontally tilted.

Foot plate 31 having such a structure
The end surface 31f of the plate portion 31c is the foot plate 31 assembled to the mounting shaft 32.
Does not come into contact with the contact bearing portion 34 when it is turned sideways, and is not turned further downward than the sideways position, and the front side surface 31g of the plate portion 31c is
However, when the foot plate 31 is rotated and erected with its tip end side 31a directed upward, the foot plate 31 comes into contact with the inversion prevention portion 35 to prevent the foot plate 31 from rotating further laterally.

The foot plate 31, which is rotatably assembled to the mounting shaft 32 in this manner, has various urging means 33, for example, a twisting member, so that the tip end side 31a of the foot plate 31 is erected upward. The foot plate 31 is configured to be constantly biased by a biasing means 33 such as a coil spring 33a so that the tip side 33a is rotated and erected upward, and resists the bias by the biasing means 33.
In a state in which the foot plate 31 is not operated by the operation means 40 that tilts the sideways, the leg pipe portion located above the mounting shaft 32 in a state in which the tip end side 31a of the foot plate 31 is rotated and erected. It is configured to be in contact with the inversion prevention portion 35 of 10j and be maintained in an upright state with its tip side 31a facing upward.

The torsion coil spring 33a shown as an example of the urging means 33 is the foot plate 3
1 bearing portion 31b and the leg pipe portion 10j
It is wound around the mounting shaft 32 between the one end side 3
3a ′ is elastically contacted with the back surface side 31h of the foot plate 31, more specifically, with the back surface side 31h of the plate portion 31c, and the other end side 33a ″ is fixed to the leg pipe portion 10j. The foot plate 31 is always urged so that its tip end side 31a is rotated and erected upward.

Next, the operating means 4 according to this embodiment
In 0, the operation wire 41 is used as a typical operation means 40 in which the inner wire 41a is movably inserted in the outer cable 41b having a tube shape, and the operation wire 41 is projected from the outer cable 41b. One end side of the inner wire 41a of the operation wire 41 is fixed to the footrest 30 and the other end side is fixed to the operation section 50, and the footrest 30 is laterally moved by the operation of the operation section 50 against the bias. It has a configuration that can be collapsed into. A hook block member 41c called a Tyco or a nipple is integrally provided on one end of the inner wire 41a and the other end of the inner wire 41a has an end portion. The end member 41d composed of a winding plate portion 41d 'that holds the winding plate portion 41d' and a plate portion 41d "with a hole integrally extending from the winding plate portion 41d 'is the winding plate portion 41d' and the inner wire 41a.
It is caught and fastened so as to hold the end of the.

The operation section 50 according to the present embodiment used for operating the operation wire 41 is the pipe section 10c located relatively above the front pipe section 10c.
By the shaft member 52 on the surface opposite to the seat 1 in
The operation rod 51 is rotatably assembled so as to project one side forward and the other side rearward, and the tip of the operation rod 51 protruding rearward from the front pipe portion 10c. The inner wire 4 is inserted into a hole 51a provided in the operation rod 51 so that the block member 41c is brought into contact with the outer surface portion on the side.
1a is inserted and one end side of the inner wire 41a is connected to the operation rod 5 at the edge of the hole 51a on the side opposite to the side where the block material 41c is provided.
1 is welded 54, and a spherical portion 53 is provided at the tip of the operation rod 51 protruding forward from the front pipe portion 10c.

The operation section 50 constructed in this manner is located on the rear side of the wheelchair A and operates the operation wire 41 by an assistant who supports the movement of the wheelchair A.
A person who gets into the wheelchair A and uses the wheelchair A can operate the operation wire 41. Also,
In this illustrated example, the foot plate 3 of each footrest 30 provided in each frame body 10, 10 respectively
The operation units 50 and 50 corresponding to the operation means 40 and 40 for individually operating 1 and 31 are respectively connected to the frame bodies 10 and
The operating means 40, 4
The operation of each of the foot plates 31 and 31 by 0 may be configured to be operated by one operation unit 50.

The shaft member 52 for rotatably assembling the operating rod 51 to the front pipe portion 10c can be constituted by, for example, a bolt 52a and a nut 52b screwed to the bolt 52a. The bolt 52a inserted into the insertion hole 10k of the portion 10c is inserted into the holed spacer 52c, and
The washer 52d of the nut 52b and the spacer 52c are inserted by inserting the washer 52d into the bolt 52a protruding from the operating rod 51 and screwing the nut 52b into the hole 52b of the operating rod 51. In between, the operation rod 51 is rotatably assembled to the front pipe portion 10c.

The other end side of the inner wire 41a of the operation wire 41 is on the side end surface of the foot plate 31 of the footrest 30, more specifically, on the side of the leg pipe portion 10j of the plate portion 31c. An end member 41d composed of the holed plate portion 41d ″ of the inner wire 41a is fixed to the end surface 31i by a screw 41e. The inner wire 41a is attached to the plate portion 31c at this position. In the illustrated example, the plate portion 31c is attached to a position slightly closer to the bearing portion 31b than the center of the side end surface of the plate portion 31c.

In the operation wire 41, the operation wire 41 portion having the outer cable 41b is located below the operation rod 51.
0c, the side surface fixed to the lower end portion of the auxiliary leg pipe 12 is provided so as to protrude toward the side of the foot plate 31 in the footrest 30 via the lower surface of the guide plate 16 having an L shape. More specifically, from the front pipe portion 10c below the operation rod 51 to the leg pipe portion 10j.
The front pipe portion 10 over a relatively lower side of the portion.
c along with the leg pipe portion 10j and is fastened to the front pipe portion 10c and the leg pipe portion 10j by a suitable fitting, for example, a band 42, and the band 42 on the relatively lower side of the leg pipe portion 10j. The leg pipe portion 10j is provided on the lower side of the leg pipe portion 10j from the fixing position by the.
The auxiliary leg pipe 12, which is used for adjusting the length of j, is fixed to the lower end surface of the guide plate 16 with a band 42 with a slack corresponding to the planned moving length, and the guide plate 16 is used to the footrest. It is provided so as to be projected to the side of the foot plate 31 in 30.

The side surface of the guide plate 1 fixed to the lower end of the auxiliary leg pipe 12 is L-shaped.
In this illustrated example, 6 is fixed to the mutually facing surface portions of the pair of auxiliary leg pipes 12 and is bent toward the lower side of the plate portion 31c which is laid sideways. The operation wire 41 provided with the outer cable 41b is attached to the lower surface of the bent extension portion, and the band 42 is attached.
It is configured to be stopped by.

The inner wire 4 fixed to the operating rod 51 by protruding outward from one side of the operating wire 41 portion provided with the outer cable 41b.
1a, the foot plate 31 by the bias,
When the tip end side 31a is turned upright,
The operation rod 51, to which the inner wire 41a is fixed, has a required length that does not come into contact with the outer cable 41b of the operation wire 41 that is fixed to the front pipe portion 10c by the band 42. It is configured to be provided between the cable 41b and the operation rod 51, and is protruded outward from the other side of the operation wire 41 portion provided with the outer cable 41b and fixed to the foot plate 31. The inner wire 41a is in contact with the outer cable 41b of the operation wire 41 when the foot plate 31 is tilted sideways against the bias by the operation rod 51. The required length that does not hinder the horizontal tilting operation It is constituted with between the cable 41b and the foot plate 31.

The inner wire 41a portion protruding outward from the outer cable 41b is
When the operation rod 51 is operated, the foot plate 31 can be smoothly and reliably laid down in a laterally oriented state against the urging from the rotationally erected state due to the urging, and the foot plate 31 is laid sideways. When the foot plate 31 is rotated to the standing state by the bias,
The operation rod 51 is provided in such a manner that it can be smoothly and reliably pulled.

The band 42 as an attachment used for fixing the operation wire 41 and the torsion coil spring 33a is, for example, a tubular engaging portion 42a and the tubular engaging portion 42a. State engagement part 42
The tubular engaging portion 42a is provided with a band portion 42b that is integrally provided in a, and the tubular engaging portion 42a has an engaging piece 42c that obliquely projects from the insertion side of the band portion 42b toward the extraction side in the tubular portion. Also, the band portion 42b is provided with, and the band portion 42b gradually bulges from the tip end side of the band portion 42b toward the side of the tubular hook portion 42a. Are formed in a so-called rack shape sequentially provided over the longitudinal side of the inner side surface of the band portion 42b, and the outer side of the band portion 42b is provided on the inner side surface of the tubular engaging portion 42a with respect to the tubular engagement portion 42a. The side surfaces are in contact with each other and the engaging projection 42
By inserting the band portion 42b while elastically deforming the engaging piece 42c by d, the engaging piece 42c and the engaging convex strip 42d are brought into a hooked state at the inserting position of the band portion 42b, and the band portion 42b. It is configured to prevent the loosening of the.

In the wheelchair A thus constructed, the foot plate 31 constituting the foot rest 30 is formed.
However, by the biasing of the biasing means 33, the tip end side thereof is always rotated and erected upward, and by the operation of the operating rod 51 in the operating portion 50, the bias is applied. Against this, the foot plate 31 can be tilted sideways. Further, the respective frame bodies 10, 10 are configured to be movable in a direction away from each other and in a direction approaching each other, and in the movement of the respective frame bodies 10, 10 in a direction away from each other, the seat pipe 23 is moved to the seat. The movement is stopped at the position where it is supported by the groove-shaped recess 63a in the support member 63 provided on the side pipe 10e.

In the wheelchair A thus constructed, the foot plate 3 which constitutes the footrest 30 is formed.
1 is urged by the urging means 33 so that its tip side 31
Since the a is turned upright, the foot plate 31 does not obstruct walking when getting on or off the wheelchair A. Further, even when the wheelchair A is folded and stored, the foot plate 31 constituting the footrest 30 is rotatably erected by the urging of the urging means 33 with its tip side 31a directed upward. Therefore, the foot plate 31
Does not hinder the folding of the wheelchair A.

Further, the caregiver operates the operating rod 51 which constitutes the operating portion 50 on the rear side of the wheelchair A, so that the foot plate 31 constituting the footrest 30 is moved to the urging means 33. The plate portion 31c of the foot plate 31 can be tilted sideways against the bias and can be used as a foot rest of a person who gets into the wheelchair and uses the wheelchair. Further, in this embodiment, since the operation rod 51 configuring the operation unit 50 is provided at a position within reach of a person who gets into the wheelchair A and uses the wheelchair A, the wheelchair A is A person who gets in the wheelchair A and can push down the foot plate 31 sideways against the urging force of the urging means 33 can be operated by himself.

In the wheelchair A having such a structure, the caregiver does not need to go to the front of the wheelchair A one by one to perform various operations. The wheelchair A can be effectively used even in a narrow space that cannot be detoured or when there is an obstacle in front of the wheelchair A.

[0073]

According to the first aspect of the present invention, there is provided a wheelchair having a footrest in a front portion thereof, wherein the footrest provided in the wheelchair is located in a front portion of the wheelchair in a front-back direction. It is equipped with foot plates that are respectively rotated with a pair of rotation axes, and the foot plates are rotated downward from a position in which they are laid sideways so that their distal ends come close to each other. Of the wheelchair, the tip end side of the wheelchair is further urged so that the tip end side of the wheelchair is erected upward so that the tip end side is turned upward by the urging. It is designed to prevent it from turning sideways, and
It has operating means for tilting the respective foot plates standing upright with the tip end side upwards against the urging force, and operating these operating means individually or simultaneously. Since the operating portion for performing the operation is provided at the rear side of the wheelchair and is provided at a position within reach of the caregiver who supports the movement by the wheelchair, the footpres The G has the advantage that it can be rotated and erected by its biasing with its tip side directed upward without requiring manual work one by one.

Further, the foot plate, which is pivotally erected upward with its tip side facing upward by the bias, is located on the rear side of the wheelchair by an assistant who supports the movement by the wheelchair. It has an advantage that it can be easily and surely pushed down sideways against a force.

According to a second aspect of the present invention, there is provided a wheelchair having a front footrest, wherein the footrest provided in the wheelchair is provided on the front side of the wheelchair so as to project forward. A pair of mounting shafts, each of which is provided with a foot plate rotatably provided, and downward from a position where the foot plates are laid sideways so that their distal ends come close to each other. Is urged at all times so as to erect the tip end side upward, and the tip end side which is rotatably erected upward by the urging is the erected position. To prevent the wheelchair from further turning toward the side of the wheelchair, and further, the respective foot plates standing upright with the tip end side facing upward are turned sideways against the bias. Defeated A position that has an operating means for pulling and has an operating section for operating each of the operating means individually or simultaneously and located at the rear side of the wheelchair and within reach of a caregiver who supports movement by the wheelchair. In addition to the above features, the foot plate of the footrest can be rotatably assembled by rotatably assembling the foot plate to the mounting shaft. ing.

Further, in the invention according to claim 1 or claim 2, the operation part is provided at a position accessible to a person who sits on the seat of the wheelchair and uses the wheelchair. In addition to the above features, the person who sits on the seat of the wheelchair and uses the wheelchair himself / herself pushes the foot plate whose tip end side is turned upright by the bias. It has an advantage that it can be easily and surely pushed down sideways against the above.

[Brief description of drawings]

FIG. 1 is a side view of a wheelchair according to a typical embodiment in a state in which a front end side of a foot plate is pivotally erected upward with each frame body separated from each other.

FIG. 2 is a side view of the wheelchair with the frame bodies separated from each other, in which the foot plate is laid sideways against the bias.

FIG. 3 is a front view of the wheelchair in a state where the front end side of the foot plate is pivotally erected upward with the frame bodies separated from each other.

FIG. 4 is a front view of the wheelchair in which the frame plates are separated from each other and the foot plate is laid sideways against the bias.

FIG. 5 is a vertical cross-sectional view of the main part of the wheelchair, showing a cross-section of the main part in the vertical direction and seen from the front side.

FIG. 6 is a longitudinal cross-sectional view of the main part of the wheelchair as seen from the front side, with the main parts being vertically approached and each main part being sectioned in the vertical direction.

FIG. 7 is an enlarged side view of an essential part of the wheelchair with a part of the operating part cut away.

FIG. 8 is a perspective view of an essential part of the footrest in the same wheelchair in a state in which the front end side of the foot plate is turned upright.

FIG. 9 is a perspective view of a main part of the footrest in a state in which the foot plate is tilted sideways against the bias.

FIG. 10 is a plan view showing a cross section of a main part taken along line WW of FIG.

11 is a cross-sectional view taken along the line VV of FIG.

FIG. 12 is an enlarged rear view of the main part of the footrest in which the main part of the footrest is pivoted upright with the tip end side of the foot plate facing upward, as seen from the support pipe part side

FIG. 13 is an enlarged rear view of the main part of the footrest, in which the main part of the footrest is tilted sideways against the bias and seen from the side of the support pipe.

FIG. 14 is an enlarged side view of an essential part of the footrest, showing the essential part of the footrest in a state where the distal end side of the foot plate is rotated and erected upward, with a part of the leg pipe part cut away;

FIG. 15 is an enlarged side view of the main parts of the footrest, showing the main parts of the footrest in a state where the front end side of the foot plate is rotated and erected upward, as viewed from the back surface side of the foot plate.

[Explanation of symbols]

A wheelchair 30 footrest 31 foot plate 31a Tip side 32 mounting shaft 40 means of operation 50 Operation part

Claims (3)

[Claims] 1. A wheelchair having a front footrest, wherein each of the footrests provided in the wheelchair has a pair of pivot axes extending in the front-rear direction on the front side of the wheelchair. It is equipped with a foot plate that can be rotated, and the foot plate is prevented from rotating downward from a position in which the foot plates are laid sideways so as to bring their tip ends closer to each other. The tip end side is always biased so as to rotate and stand with its side facing upward, and the tip side that is rotated and raised upward by the bias is further rotated from the standing position toward the side of the wheelchair. In addition, it has an operating means for tilting the respective foot plates standing upright with the tip end side upwards against the urging force in a lateral direction. , This An operating unit for operating each of the operating means individually or simultaneously is provided on the rear side of the wheelchair at a position within reach of a caregiver who supports movement by the wheelchair. wheelchair. 2. A wheelchair having a front footrest, wherein the footrest provided in the wheelchair is provided on the front side of the wheelchair so as to project forward. Each has a foot plate rotatably provided, and the foot plates are prevented from turning downward from a position in which the foot plates are laid sideways so that their front ends come close to each other. The wheelchair is always urged so that the tip end side thereof is rotated and erected upward, and the tip end side rotatably erected upward by the urging is further laterally of the wheelchair from the standing position. And an operating means for tilting the respective foot plates standing upright with the tip end side up against the biases in a lateral direction. Have In addition, an operating portion for operating the operating means individually or simultaneously is provided on the rear side of the wheelchair at a position accessible by a caregiver who supports movement by the wheelchair. Wheelchair characterized by. 3. The wheelchair according to claim 1 or 2, wherein the operation portion is provided at a position accessible to a person who sits on the seat of the wheelchair and uses the wheelchair. .