JP2014012087A - Footrest operating device and wheelchair with footrest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a footrest operating device which is easily operated even by a person in need of nursing care who needs to use a wheelchair due to a decline in muscular strength.SOLUTION: This invention relates to a footrest operating device 1 for operating to move a footrest C1 via a remote operating mechanism 3 by operating an operation part 2. The remote operating mechanism 3 includes an operation-side rotating body 31, a footrest-side rotating body 32, a first wire 33a, and a second wire 33b. The footrest makes moving actions that are synchronized with rotating actions of the footrest-side rotating body 32. The first wire 33a connects the operation-side rotating body 31 and the footrest-side rotating body 32 in such a manner that the footrest-side rotating body 32 rotates in one direction, and the second wire 33b connects the operation-side rotating body 31 and the footrest-side rotating body 32 in such a manner that the footrest-side rotating body 32 rotates in the reverse direction. The footrest C1 is displaced and moved between a use position and a retreat position.

Description

  The present invention relates to a footrest operating device attached to a wheelchair or the like and a wheelchair with a footrest.

  A footrest attached to a wheelchair can play an important role in keeping a foot in a comfortable state because a care recipient or an elderly person can sit on a chair when sitting on a chair. However, when the footrest is always in the use position, when getting on and off the wheelchair, it is difficult to sit and stand because the seat is located away from the center of gravity of the body. Therefore, the footrest is generally structured to be foldable when getting on and off the wheelchair.

  Many footrests have a structure that must be opened and closed by the hands and feet of the care recipient, the elderly themselves, and the caregivers and caregivers who care for them. Not only was it a burden, but there were also problems with hygiene. Therefore, a mechanism for opening and closing the footrest without touching the footrest directly while a care recipient, elderly person or caregiver is sitting is known. For example, in Patent Document 1, as shown in FIG. 7, a foot support 102 extending to the left and right front sides of a body frame 101 of a wheelchair C is freely rotatable by a pair of footrest shafts 103 and side end portions 104 thereof. A footrest opening / closing mechanism 100 having a footrest 105 supported by a fitting shaft is disclosed.

  The opening / closing mechanism 100 operates a control lever 106 (see FIG. 7) on the hand side of a care recipient or elderly person sitting in a wheelchair C using one rope 108 shown in FIG. The footrest 105 is opened and closed by pulling and operating a single cable 108. One rope 108 is inserted into the protective tube 112 shown in FIG. 7, and is provided between the operation lever 106 and the footrest 105. The rope 108 and the footrest 105 connect the connecting shaft 111. Are connected through. As shown in FIG. 8, a coil spring 107 is wound around the footrest shaft 103 around which the footrest 105 opens and closes, and one end of the coil spring 107 is placed in the hole 109 of the footrest shaft 103 and the other end is placed on the side surface of the footrest 105. The footrest 105 is always urged in the direction of use (closed position; the state of the left footrest 105 in FIG. 7) through the provided hole 110. On the other hand, when the footrest 105 is moved to the retracted position (open position; the state of the right footrest 105 in FIG. 7), the operating lever 106 is operated, the cord 108 is pulled, and the cord 108 and the connecting shaft 111 are operated. The footrest 105 connected by the above is lifted and moved to the retracted position.

JP 2009-213862 A

  However, the opening / closing mechanism 100 is operated against the biasing force of the coil spring 107 that biases the footrest 105 in the direction of the use position (closed position) in order to move the footrest 105 to the retracted position (open position). It is necessary to operate the lever 106. Therefore, the operation is difficult for a person requiring care and an elderly person with weak power. Furthermore, it is difficult for a care recipient or elderly person to sit while operating the operation lever 106 when trying to sit down. When the footrest 105 is in the use position when trying to sit in the wheelchair, the footrest 105 in the use position becomes in the way as shown in FIG. The foot placement L on the ground is far away from the center of gravity of the care recipient or elderly person H, and balance is maintained when a person requiring care or the elderly person H tries to sit on the wheelchair C. Not only is it difficult, it puts a burden on various places such as arms and waist.

  The present invention is for solving the above-described problem, and can be easily operated even by a user who uses a chair having a footrest such as a wheelchair, for example, a care recipient who has weakened muscle strength. An object is to provide an apparatus.

  The footrest operating device of the present invention is a footrest operating device that performs a movement operation of the footrest via a remote operation mechanism by operation of the operation unit, and the remote operation mechanism includes an operation side rotating body that rotates by operation of the operation unit; A footrest-side rotating body connected to the footrest, and a wire connected between the operation-side rotating body and the footrest-side rotating body, the footrest being connected to the footrest-side rotating body, The moving operation is synchronized with the rotating operation of the side rotating body, the wire has a first wire and a second wire, and the first wire is pulled by a normal rotation of the operating side rotating body and is The operating-side rotating body and the footrest-side rotating body are connected so that the footrest-side rotating body rotates in one direction, and the second wire is The operation-side rotating body and the footrest-side rotating body are connected so that the second wire is pulled by the reverse rotation of the rotating body and the footrest-side rotating body rotates in the reverse direction, and according to the operation of the operation unit Further, the footrest is displaced between a use position and a retracted position by the wire pulling operation.

  Moreover, the wheelchair with a footrest of the present invention is characterized in that the footrest can be displaced between a use position and a retracted position by operating the operation portion using a footrest operating device.

  The footrest operating device and the wheelchair with the footrest according to the present invention include two wires, and the footrest moves between the use position and the retracted position by pulling each of them. Because it does not resist the urging force, it can be operated easily. For example, even a care recipient or elderly person with weak muscles who needs to use a wheelchair can easily sit and stand safely. be able to. In addition, the retracted position of the footrest can be maintained by the sliding frictional force of the wire, so there is no need to provide a configuration for maintaining the retracted position by engagement with the operation unit for operating the wire. There is no need to disengage and the operation is simple.

(A) is a front view of a wheelchair including the footrest operating device of the present invention, and (b) is a side view of the wheelchair including the footrest operating device of the present invention. 1 is an overall view showing an embodiment of a footrest operating device of the present invention. It is sectional drawing by the side of the operation side rotary body in the remote control mechanism of the footrest operating device of this invention. It is sectional drawing by the side of the footrest side rotary body in the remote control mechanism of the footrest operating device of this invention. It is a figure for demonstrating the state which the footrest moved to the retracted position with the footrest operating device of this invention. It is a figure for demonstrating the state which the footrest moved to the use position with the footrest operating device of this invention. It is a figure which shows the opening / closing mechanism of the conventional footrest. It is the elements on larger scale of the opening / closing mechanism of the footrest of FIG. It is a figure for demonstrating the state when sitting on the wheelchair using the opening / closing mechanism of the conventional footrest.

  Hereinafter, a footrest operating device and a wheelchair with a footrest according to the present invention will be described in detail with reference to the accompanying drawings.

  1 (a) and 1 (b) are a front view and a side view of a wheelchair with footrest (hereinafter simply referred to as a wheelchair) C including the footrest operating device 1 of the present invention. The footrest operating device 1 of the present invention is configured to move the footrest C1 through the remote operation mechanism 3 that transmits the operating force of the operating unit 2 to a position away from the operating unit 2 by operating the operating unit 2 that operates the footrest C1. It is configured to Further, the wheelchair C having the footrest operating device 1 of the present invention is configured such that the footrest C1 can be displaced between the use position and the retracted position by operating the operation unit 2 using the footrest operating device 1. ing. As shown in FIGS. 1 (a) and 1 (b), the footrest operating device 1 is used in a wheelchair C such as a care recipient or an elderly person who uses the wheelchair C (hereinafter simply referred to as a user). Are attached to two positions, namely, an operation position where the footrest C1 is physically operated and moved.

  As shown in FIGS. 1A, 1B, and 2, in the operation position, the operation unit 2 side of the remote operation mechanism 3 is in front of a horizontal frame C3 positioned on both the left and right sides of the seat C2 of the wheelchair C. Is attached to a vertical frame C4 intersecting with the front part of the horizontal frame C3 by a known fixing means such as a screw T via an attachment member P for attaching the remote control mechanism 3. Further, at the operated position, the footrest C1 side of the remote operation mechanism 3 is similarly connected to the footrest mounting frame C5 by a known fixing means using a screw T (see FIG. 4) or the like, and serves as a rotation axis of the footrest C1. The member 4 (refer FIG.1 (b) and FIG. 4) is attached. Thus, although the footrest operating device 1 is attached to the wheelchair C, the footrest operating device 1 may be incorporated in the wheelchair C in advance, or the footrest operating device 1 unitized is already used in the ready-made wheelchair C. It can also be used after being attached to a wheelchair C.

  The attachment position of the remote operation mechanism 3 is not particularly limited as long as the user of the wheelchair C can operate the operation unit 2 and the footrest C1 can be operated by the operation of the operation unit 2. Therefore, the armrest C6 of the wheelchair C, the frame C7 on the back side of the wheelchair C, and the grip portion for manually pushing the wheelchair C so that the person pushing the wheelchair C can operate the operation unit 2 side of the remote control mechanism 3. You may provide in C8. The footrest C1 side of the remote control mechanism 3 may also be attached to the shaft member 4 serving as the rotation shaft of the footrest C1 in addition to the footrest attachment frame C5, or the rear side of the footrest C1 as shown in FIG. Instead of being provided on the right side of the footrest C1 in FIG. 1B, it may be provided on the front side (the left side of the footrest C1 in FIG. 1B).

  Moreover, although the footrest operating device 1 of this Embodiment has shown the example applied to the wheelchair C, the footrest operating device 1 of this invention is not limited to the wheelchair C, A rail vehicle, an aircraft, a bus, a movie theater If it is a chair used with a footrest, etc., it can apply widely.

  As shown in FIG. 2, the remote operation mechanism 3 includes an operation-side rotating body 31 that rotates by operating the operation unit 2, a footrest-side rotating body 32 that is connected to the footrest C <b> 1, and the operation-side rotating body 31 and the footrest-side rotation. And a wire 33 connected to the body 32. The wire 33 has a first wire 33a and a second wire 33b. The first wire 33a is pulled toward the operation unit 2 side by the normal rotation of the operation side rotator 31 (rotation in the counterclockwise direction in FIG. 2), and the footrest side rotator 32 is rotated in one direction (clockwise in FIG. 2). The operation side rotating body 31 and the footrest side rotating body 32 are connected so as to rotate in the direction). Further, the second wire 33b is pulled by the operation side 2 by the reverse rotation of the operation side rotating body 31 (clockwise in FIG. 2), and the footrest side rotating body 32 is reversed. The operation side rotating body 31 and the footrest side rotating body 32 are connected so as to rotate in a direction (counterclockwise in FIG. 2).

  That is, in the present embodiment, the first wire 33a moves the footrest C1 from the use position where the user's foot is placed on the footless C1 to the retreat position where the footrest C1 is retracted when the footrest C1 is not used. It is used for. The second wire 33b is used to move the footrest C1 from the retracted position to the use position. Ends E1 and E3 of the first wire 33a and the second wire 33b on the operation side rotating body 31 side are locked to a wire end locking portion 31a provided on the operation side rotating body 31, and the operation side rotating body 31 is When rotating, the first wire 33a and the second wire 33b are configured to be pulled. Similarly, the end portions E2 and E4 of the first wire 33a and the second wire 33b on the footrest-side rotator 32 side are fixed to wire end locking portions 32a provided on the footrest-side rotator 32, so that the operation-side rotator is provided. When the 31 rotates, the first wire 33a and the second wire 33b are pulled. Thus, when the operation side rotating body 31 rotates forward and backward, the footrest side rotating body 32 rotates in one direction and reverse direction via the first wire 33a and the second wire 33b.

  In FIG. 2, the first wire 33 a and the second wire 33 b are accommodated in one outer casing O, slide inside thereof, and are guided from the operation side rotating body 31 to the footrest side rotating body 32. . According to this embodiment, the outer casing O having two mutually parallel insertion holes for accommodating the first wire 33a and the second wire 33b is used. You may use the two outer casings which each accommodate the wire 33b.

  As shown in FIGS. 2 and 3, the operation-side rotating body 31 is a rotating body that rotates by operating the operation unit 2. In FIGS. 2 and 3, the operation-side rotating body 31 is a known pulley to which the inner cable of the control cable is connected. It is shown. In the embodiment shown in FIGS. 2 and 3, the operation unit 2 is shown as an operation lever that rotates integrally with the operation side rotating body 31 around the rotation axis Ax of the operation side rotating body 31. The operation unit 2 is connected to the operation side rotator 31 by a bolt B and a nut N, and is configured to directly transmit the rotation operation of the operation unit 2 to the operation side rotator 31. The rotation operation of the operation unit 2 may be transmitted to the operation-side rotating body 31 through the member. Further, the operation unit 2 and the operation-side rotating body 31 are connected to each other via a mechanism that converts reciprocating motion into rotational motion, such as a rack and a pinion, and the operation unit 2 is reciprocated (for example, the front-rear direction of the wheelchair C). The operation side rotating body 31 may be rotated.

  In the present embodiment, as shown in FIG. 2, the operation unit 2 is operated in the direction in which the operation unit 2 is erected as viewed from the user of the wheelchair C, as indicated by a two-dot chain line, from the collapsed state indicated by the solid line. As a result, the footrest C1 is moved from the tilted position (use position) to the raised position (retracted position), and the operation section 2 is operated in the direction of tilting the operation section 2 from the standing position indicated by a two-dot chain line. Thus, the footrest C1 is moved from the standing state (retracted position) to the state in which the footrest C1 is tilted (used position). In addition, when the operation direction of the operation unit 2 and the moving direction of the footrest C1 are reversed, that is, when the operation unit 2 is operated in a direction to stand up, the footrest C1 is tilted and the operation unit 2 is tilted. The footrest C1 may be configured to stand when operated.

  As shown in FIG. 3, the operation side rotating body 31 is rotatably supported by the operation side housing 34. The operation side rotating body 31 is formed with a wire locking groove 31b around which the first wire 33a and the second wire 33b are wound (in FIG. 3, the first wire 33a and the second wire 33b are not shown). Omitted). An annular groove 31c is formed along the outer periphery of a portion adjacent to the wire locking groove 31b in the rotation axis Ax direction, and a protrusion 34a formed in the operation side housing 34 enters the annular groove 31c. The operation side rotating body 31 is supported by the operation side housing 34 and rotates. In the present embodiment, an attachment claw 34 b for attaching the operation side housing 34 to which the operation unit 2 is attached to the attachment member P extends from the operation side housing 34. Thereby, attachment to the attachment member P of the operation side housing 34 and removal become easy, and the maintenance of the operation side rotating body 31 and the operation side housing 34 becomes easy. 2 and 3 is merely an example, and the operation-side rotating body 31 and the operation-side housing 34 may have any shape as long as the operation-side rotating body 31 can rotate smoothly. The structure is not particularly limited. The attachment member P for attaching the remote control mechanism 3 to the wheelchair C is not limited to the structure shown in FIG. 2 as long as the remote control mechanism 3 can be easily attached to the wheelchair C. A clamp member that is fastened and fixed to the frame may be used, or may be fixed by welding or adhesion.

  The footrest side rotating body 32 is configured to rotate when the operation side rotating body 31 rotates and the first wire 33a and the second wire 33b are pulled. 2 and 4, the footrest side rotating body 32 is shown as a known pulley to which the inner side of the control cable is connected. The footrest side rotating body 32 is formed with a wire locking groove 32b around which the first wire 33a and the second wire 33b are wound (in FIG. 4, the first wire 33a and the second wire 33b are not shown). Omitted). The footrest side rotating body 32 is attached to the footrest side housing 35 and is rotatably supported by a shaft portion 35 a formed in the footrest side housing 35. In the embodiment shown in FIG. 4, the footrest-side rotator 32 attached to the shaft portion 35 a of the footrest-side housing 35 has the footrest-side rotator 32 coming out of the shaft portion 35 a to the shaft portion 35 a of the footrest-side housing 35. The cap member 36 for preventing is supported by being attached. However, the shape and structure of the footrest-side rotating body 32 and the footrest-side housing 35 are not limited as long as the footrest-side rotating body 32 can rotate and the footrest C1 can be moved by the rotation of the footrest-side rotating body 32. Is not particularly limited.

  The footrest-side rotator 32 supported by the footrest-side housing 35 can be attached to the wheelchair C via the attachment member P2, similarly to the operation-side rotator 32. The attachment member P2 is attached to the wheelchair C by known fixing means such as a screw T as shown in FIG. The attachment member P2 for attaching the remote operation mechanism 3 is not limited to the structure shown in FIG. 2 as long as the remote operation mechanism 3 can be easily attached to the wheelchair C, similarly to the attachment member P. A clamp member that is fastened and fixed to any one of the frames may be used, or may be fixed by welding or adhesion. In FIG. 4, the footrest-side rotating body 32 is attached to the frame C5 on the rear side of the footrest C1 (the rear side in the front-rear direction of the wheelchair C), but the footrest-side rotating body 32 is the front portion of the footrest C1. You may attach to the side (front side in the front-back direction of the wheelchair C. The right side of the footrest C1 in FIG. 4).

  The footrest-side rotator 32 is connected directly or indirectly to the footrest C1, and the footrest C1 is connected to the footrest-side rotator 32 so as to perform a movement operation synchronized with the rotation operation of the footrest-side rotator 32. Has been. The footrest C1 is displaced between a use position (a position indicated by a solid line in FIG. 2) and a retracted position (a position indicated by a two-dot chain line in FIG. 2) by pulling the wire 33 according to the operation of the operation unit 2. Move. Here, the “synchronized movement operation” is intended to cause the footrest C1 to move in conjunction with the rotation of the footrest-side rotating body 32, and the footrest C1 is not necessarily the same as the footrest-side rotating body 32. It is not required to rotate at the same rotation angle in the direction. That is, as shown in FIGS. 1A and 1B, the footrest C1 rotates around the shaft member 4 extending in the front-rear direction of the wheelchair C to move between the use position and the retracted position. However, when the footrest C1 is in the retracted position, the footrest C1 may move differently from the movement shown in FIGS. 1A and 1B if it does not get in the way when sitting on the wheelchair C. . For example, the wheelchair C may be rotated around a rotation shaft (not shown) extending in the left-right direction, or the footrest C1 can be moved up and down in a horizontal state, and the footrest C1 is in the retracted position. The footrest C1 may be in a state of being lowered to the installation surface of the wheelchair C such as the ground. Further, in the embodiment shown in FIGS. 2 and 4, the connection between the footrest C <b> 1 and the footrest side rotating body 32 is connected via a footrest moving member 37 that rotates together with the footrest side rotating body 32 as will be described later. However, the footrest-side rotating body 32 may be directly connected to the shaft member 4 serving as the rotation shaft of the footrest C1, and the footrest C1 may be rotated when the shaft member 4 rotates.

  In the embodiment shown in FIGS. 2 and 4, the footrest moving member 37 for moving the footrest C <b> 1 is attached coaxially with the footrest side rotating body 32 and rotates in the same direction as the rotation direction of the footrest side rotating body 32. Has been. Although the shape of the footrest moving member 37 is not particularly limited, in FIGS. 2 and 4, the footrest moving member 37 is a fan-shaped portion F (projecting outward in the radial direction from the outer peripheral edge of the footrest side rotating body 32. 2) and a plate-shaped plate 37a and two rod-shaped protrusions 37b and 37c protruding from the fan-shaped portion F of the plate-shaped plate 37a. The footrest C1 is sandwiched from both sides by the two protrusions 37b and 37c (see FIG. 2), and the footrest moving member 37 rotates together with the footrest-side rotating body 32, whereby the footrest C1 can be moved. By sandwiching the footrest C1 from both sides by the two protrusions 37b and 37c, it is possible to cope with both movements from the use position to the retracted position and from the retracted position to the use position. Further, by sandwiching the footrest C1 between the two protrusions 37b and 37c, the footrest moving member 37 can be attached as it is without adding a hand to the structure of the footrest C1. Therefore, the footrest operating device 1 can be easily attached to the ready-made wheelchair C or the wheelchair C being used.

  In addition, as shown in FIG. 2, the fan-shaped portion F is further formed with another preliminary projection 37d in addition to the two projections 37b and 37c sandwiching the footrest C1 described above. The distance between the preliminary protrusion 37d and the protrusion 37c is the same as the distance between the two protrusions 37b and 37c. In this way, by arranging the three protrusions 37b, 37c, and 37d with an interval for sandwiching the footrest C1 between them, the footrest operating device 1 having the same shape can correspond to both the left and right of the wheelchair C. It is possible to simplify the manufacturing process and manufacture at low cost.

  Next, the movement of the footrest operating device 1 and the footrest C1 according to the present invention will be described with reference to FIGS. First, when trying to sit on the wheelchair C, the user H operates the operation unit 2 to move the footrest C1 to the retracted position (the state of the footrest C1 shown in FIG. 5). When the footrest C1 is in the use position, the footrest C1 is rotated counterclockwise in FIG. 2 from the state indicated by the solid line to the state indicated by the two-dot chain line in FIG. At this time, when the operation unit 2 is rotated counterclockwise, the operation side rotating body 31 connected to the operation unit 2 is also rotated in the same direction, and the first wire 33a is subjected to a pulling operation. When the first wire 33a is subjected to a pulling operation, the footrest-side rotator 32 to which the end E2 of the first wire 33a is fixed rotates clockwise in FIG. When the footrest-side rotating body 32 rotates in the clockwise direction, the footrest-side rotating body 32 is connected to the footrest C1 by the footrest moving member 37. Therefore, the footrest C1 is a two-dot chain line from the use position indicated by the solid line in FIG. It moves to the retreat position shown by.

  At this time, since the footrest C1 is not biased in the direction to maintain the use position, the footrest C1 can be easily moved to the retracted position only by operating the operation unit 2. Therefore, the user H does not have to bend the footrest C1 by hand and directly operate the footrest C1 by hand, but can be easily operated even by a care recipient or an elderly person who needs to use the wheelchair C. The unit 2 can be operated.

  Further, when the footrest C1 moves to the retracted position, the footrest C1 comes into contact with the footrest mounting frame C5 or a stopper (not shown) provided separately and stops at the retracted position so as not to rotate more than a certain amount. 2, the counterclockwise due to the weight of the operation unit 2 caused by the operation unit 2 being inclined (indicated by a two-dot chain line) from the vertical standing position toward the operation direction (the wheelchair rearward direction). The footrest C1 is held at the retracted position without rotating from the retracted position toward the use position by the rotational force M in the rotating direction. Further, the rotational force due to the weight of the footrest C1 and the sliding frictional force between the footrest C1 and the shaft member 4 are also applied, so that the holding at the retracted position can be further ensured. Therefore, the operation unit 2 for operating the wire 33 is configured to maintain the retracted position by engagement (for example, when the footrest C1 is in the retracted position by the operation unit 2, the operation unit 2 is not moved. Since there is no need to provide a locking mechanism or the like, it is not necessary to disengage the operation portion 2 and the operation is simple.

  When the footrest C1 moves to the retracted position, the user H can easily sit on the wheelchair C with a natural posture as shown in FIG. That is, when the footrest is urged toward the use position and is always in the use position as in the prior art, the footrest in the use position becomes an obstacle, and the place where the foot is placed on the user's ground is the center of gravity of the user H. Is far away from For this reason, when the user tries to sit on the wheelchair, the center of gravity of the body will be behind, so it is necessary to provide a wheelchair movement prevention mechanism such as a wheel stopper, and assistance by the caregiver when sitting It is necessary to do. (See FIG. 9). However, by moving the footrest C1 to the retracted position as in the present invention, the foot placement place L on the ground G of the user H can be made close to the center of gravity of the user H. Therefore, it is possible to sit comfortably as if sitting on a normal chair without a footrest. In addition, since the movement operation of the footrest C1 is easy, even an elderly person or a care recipient can perform the sitting / standing operation alone. Furthermore, since the operation part 2 and the footrest C1 can operate the other by one operation by pulling the first wire and the second wire, the footrest C1 is pressed against an object and moved. Since the footrest can be moved to the retracted position, the footrest operating device 1 is excellent in operability as compared with the footrest in which the lock mechanism is provided in the operation portion.

  After the footrest C1 is moved to the retracted position and the user H sits on the wheelchair C, the footrest C1 is moved to the use position by operating the operation unit 2 as shown in FIG. That is, the operation unit 2 is rotated clockwise in FIG. 2 from the position indicated by the two-dot chain line in FIG. 2 to the position indicated by the solid line to rotate the footrest C1. At this time, when the operation unit 2 is rotated in the clockwise direction, the operation-side rotating body 31 connected to the operation unit 2 is also rotated in the same direction, and the second wire 33b is subjected to a pulling operation. When the second wire 33b is subjected to a pulling operation, the footrest-side rotator 32 to which the end E4 of the second wire 33b is fixed rotates counterclockwise in FIG. When the footrest-side rotator 32 rotates counterclockwise, the footrest-side rotator 32 is connected to the footrest C1 by the footrest moving member 37, so that the footrest C1 moves away from the retracted position indicated by the two-dot chain line in FIG. Move to the use position indicated by the solid line. The footrest C1 moved to the use position is further prevented from moving by the end portion coming into contact with the footrest mounting frame, and the operation portion 2 is brought into contact with the locking portion S to stop the movement. To stop moving. When the user H puts his / her foot on the footrest C1 stopped at the use position, the user H can sit on the wheelchair C in an easy state.

  As described above, according to the present invention, not only can the footrest C1 be moved to the use position and the retracted position by a simple operation of the operation unit 2, but also the biasing member and the like can be attached to the use position and the retracted position. Since the operation can be performed without resisting the urging member, even a care recipient who has weakened muscular strength or an elderly person can easily operate. Further, since the operation unit 2 is fixed so as not to move and an engagement means for fixing the footrest C1 in the retracted position and an operation for releasing the engagement are unnecessary, the operation of the footrest C1 is simplified. be able to. Therefore, even a care recipient or an elderly person can easily handle it. Moreover, since the footrest operating device 1 of this invention does not choose the attachment position by the said structure, it can be easily attached also to the wheelchair C and the wheelchair C currently used.

DESCRIPTION OF SYMBOLS 1 Footrest operating device 2 Operation part 3 Remote operation mechanism 31 Operation side rotary body 31a Wire end latching part 31b Wire latching groove 31c Annular groove 32 Footrest side rotary body 32a Wire end latching part 32b Wire latching groove 33 Wire 33a First wire 33b Second wire 34 Operation side housing 34a Protruding portion 34b Mounting claw 35 Footrest side housing 35a Shaft portion 36 Cap member 37 Footrest moving member 37a Plate 37b, 37c Protruding portion 37d Preliminary projecting portion 4 Shaft member Ax Rotating shaft B Bolt C Wheelchair C1 Footrest C2 Seat C3 Horizontal frame C4 Vertical frame C5 Footrest mounting frame C6 Armrest C7 Back frame C8 Grip part E1, E2, E3, E4 End F Fan-shaped part G Ground H User Storage M rotational force N nut O outer casing P mounting member P2 attachment member S engagement portion T screw feet

Claims (2)

A footrest operating device that performs a movement operation of the footrest via a remote operation mechanism by operating an operation unit, wherein the remote operation mechanism is
An operation side rotating body that rotates by operation of the operation unit;
A footrest-side rotating body connected to the footrest;
A wire connected between the operating side rotating body and the footrest side rotating body,
The footrest is connected to the footrest-side rotating body and performs a movement operation synchronized with the rotation operation of the footrest-side rotating body,
The wire has a first wire and a second wire,
The first wire connects the operating side rotating body and the footrest side rotating body so that the first side wire is pulled by a normal rotation of the operating side rotating body and the footrest side rotating body rotates in one direction,
The second wire connects the operating side rotating body and the footrest side rotating body so that the second wire is pulled by the reverse rotation of the operating side rotating body and the footrest side rotating body rotates in the reverse direction. And
The footrest operating device, wherein the footrest is displaced between a use position and a retracted position by an operation of pulling the wire in accordance with an operation of the operation unit. A wheelchair with a footrest capable of displacement movement between a use position and a retracted position by operating the operation portion using the footrest operating device according to claim 1.

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