JP2006204707A - Detachable footrest for wheelchair, footrest for wheelchair and wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent even a wheelchair user having difficulty in keeping its feet fixed on a position by itself because of an impaired lower back from slipping its feet backward. <P>SOLUTION: The footrest includes a heel part 22 provided on an existing footrest part 20 for putting the feet thereon of the existing footrest when the user is on the wheelchair so as to make a constant angle and prevent the feet from slipping to a heel side, and a fixing means to detachably attached to the existing wheelchair. The footrest has a clamp force generating mechanism to clamp the existing footrest and an opposite part provided on an opposite position of the existing footrest. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a footrest for preventing a wheelchair user from slipping.

  Conventionally, a wheelchair is provided with a footrest for resting a foot while riding. For example, as shown in FIG. 8 (A), in a general wheelchair 100, a footrest 101 is disposed in advance ahead of the front wheels in the traveling direction. As shown in FIG. 8B, the user of the wheelchair 100 puts the foot on the footrest 101 while riding to stabilize the foot and prevent the foot from getting tired.

  However, even when the foot is placed on the existing footrest 201, there is a problem that the foot slides backward from the footrest 201. In particular, wheelchair users who have obstacles in the lower body and often have difficulty in keeping their feet in the same position on their own, recover by themselves after sliding off the footrest 201 as shown in FIG. 8C. There is a problem that the foot is caught between the wheelchair 200 and the ground or floor.

  If the assistant keeps pushing the wheelchair 200 without noticing it, the slipped foot will be dragged by the wheel of the wheelchair 200, causing sprains and fractures.

  On the other hand, this type of wheelchair has already been manufactured and sold in large quantities and used in many facilities. Therefore, it has been difficult to deal with these problems.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a footrest, a wheelchair and the like that are easy to use for wheelchair users and assistants.

  In order to achieve the above object, the following configuration is adopted.

  (1) A footrest for placing a foot while riding in a wheelchair, a heel that is placed at a fixed angle with respect to the footrest and prevents the foot from slipping to the heel side, and removable to an existing wheelchair Fixing means, and

  A footrest for a detachable wheelchair characterized by comprising:

  (2) The detachable wheelchair footrest according to (1), wherein the fixing means can be fixed to an existing footrest previously installed in the wheelchair.

  (3) The fixing means is located above the existing footrest and a position below the existing footrest and facing the footrest with a certain distance from the footrest. (2), and a holding force generating mechanism for generating a holding force for holding the existing footrest by the facing portion and the facing portion. ) Detachable wheelchair footrest.

  (4) The holding force generating mechanism includes a connecting portion that connects the footrest portion and the facing portion and can generate a holding force between the footrest portion and the facing portion by elasticity or flexibility. The footrest for detachable wheelchairs as described in (3) characterized by these.

  (5) The holding force generation mechanism includes a magnetic part that is disposed on at least one of the footrest part and the opposing part and that can generate a clamping force between the footrest part and the opposing part by magnetism. The footrest for a detachable wheelchair according to (3), characterized in.

  (6) The fixing means includes the footrest portion, a facing portion disposed at a position facing the footrest portion at a certain distance from the footrest portion, and between the footrest portion and the facing portion. The side surface portion is configured to have a U-shaped cross section, and the existing footrest is inserted between the footrest portion and the facing portion, and can be fixed to the existing footrest. The footrest for detachable wheelchairs as described in (2).

  (7) a toe portion that is disposed on the toe side of the footrest portion and prevents the foot from sliding down to the toeside, and an angle variable mechanism that allows changing an angle formed by the footrest portion and the toe portion; The footrest for a detachable wheelchair according to any one of (1) to (6), comprising:

  (8) The detachable wheelchair footrest according to any one of (1) to (7), wherein a main part is formed of metal, plastic, rubber, or elastomer.

  (9) A footrest portion for placing a foot while riding a wheelchair, and a heel portion that is disposed at a certain angle with respect to the footrest portion and prevents the foot from sliding down to the heel side. And a wheelchair footrest.

  (10) It has a toe part that prevents the foot from slipping toward the toe side of the footrest part, and an angle variable mechanism that makes it possible to change the angle formed by the footrest part and the toe part. Yes, the wheelchair footrest described in (9).

  (11) The detachable wheelchair footrest according to (9) or (10), wherein a main part is formed of metal, plastic, rubber or elastomer.

  (12) A wheelchair including a footrest for resting a foot during wheelchair riding, wherein the footrest is disposed at a fixed angle with respect to a footrest portion for placing a foot during wheelchair riding, A wheelchair comprising: a heel portion that prevents the foot from slipping to the heel side.

  (13) It has a toe part that prevents the foot from slipping toward the toe side of the footrest part, and an angle variable mechanism that makes it possible to change the angle formed by the footrest part and the toe part. The wheelchair according to (12).

  According to the detachable wheelchair footrest, the wheelchair footrest, and the wheelchair of the present invention, it is possible to effectively and reliably prevent the drop of the foot from the footrest of the wheelchair. A wheelchair that is safe and comfortable for the user is provided.

  Embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a detachable wheelchair footrest 12 of the present embodiment. The detachable wheelchair footrest 12 includes a footrest 20 and a buttocks 21. The foot placement unit 20 is a place where a user of the wheelchair 10 puts his / her foot while the wheelchair 10 is on board. The heel part 21 is arranged at a certain angle with respect to the footrest part 20, and this step prevents the user's foot of the wheelchair 10 from sliding down to the heel side.

  Specifically, the heel portion 21 is disposed at a heel side end portion of the footrest portion 20 so as to be substantially perpendicular to the footrest portion 20. The footrest portion 20 and the heel portion 21 are integrated by welding.

  In addition, although the case where it becomes perpendicular | vertical is shown here, the angle which the footrest part 20 and the heel part 21 make produces the level | step difference of the grade which can prevent a user's leg | foot of the wheelchair 10 slipping back. If it is such an angle, it can be set arbitrarily.

  Further, in the detachable wheelchair footrest 12, a toe portion 22 is disposed at a toe side end portion of the footrest portion 20. The toe portion 22 prevents the foot placed on the foot placement portion 20 from sliding down to the toe side.

  As shown in FIGS. 2 and 3, the toe portion 22 and the footrest portion 20 are provided with a variable angle mechanism. Various structures for realizing this mechanism will be described below.

  The foot placement portion 20 and the toe portion 22 are formed with a plurality of convex portions 20A and 22A, respectively, which are alternately combined. In the state where both convex portions 20A, 22A are combined, each convex portion 20A, 22A is formed with a horizontal hole penetrating them simultaneously, and the connecting pin 30 is passed through the horizontal hole, The foot placement part 20 and the toe part 22 are connected. The diameter of the horizontal hole formed in the convex portion 22 </ b> A on the toe portion 22 side is set to be slightly larger than the diameter of the connecting pin 30, so that the toe portion 22 can swing around the connecting pin 30. Yes. As a result, the angle formed between the foot placement portion 20 and the toe portion 22 can be freely changed. In addition, you may employ | adopt a separate hinge etc. for the connection of the footrest part 20 and the toe part 22 in addition to this.

  Furthermore, fixing pins 31A and 31B, locking pins 32A and 32B, and semicircular plates 33A and 33B are installed near both ends of the connecting pin 30. It should be noted that here, one side (31A, 32A, 33A side) will be described in detail, and the description on the opposite side (31B, 32B, 33B side) will be omitted. The fixing pin 31A is installed on the side surface of the toe portion 22, and the semicircular plate 33A is swingably held by the fixing pin 31A. A plurality of holes 34 are continuously formed in the semicircular plate 33A in the circumferential direction. On the other hand, the locking pin 32A is provided on the side surface of the footrest 20 and protrudes from the side surface, and can selectively engage with any one of the plurality of holes 34 of the semicircular plate 33A. It has become. For example, by inserting the locking pin 34 </ b> A into any of the plurality of holes 34 of the semicircular plate 33 </ b> A, the toe portion 22 can be fixed to the footrest portion 20 at a certain angle.

  When getting on and off the wheelchair 10, the toe portion 22 is tilted until it is substantially parallel to the footrest portion 20, so that the toe portion 22 can get on and off smoothly without getting in the way. In addition, when the wheelchair 10 is being ridden, if the toe portion 24 is upright so that the angle between the toe portion 22 and the footrest portion 20 is substantially vertical, it is possible to prevent the foot from slipping toward the toe side.

  Next, with reference to FIG. 4, the fixing means of this detachable wheelchair footrest 12 will be described. This fixing means allows the detachable wheelchair footrest 12 to be easily attached to and detached from the existing wheelchair 10, but here, in particular, a footrest previously installed in the wheelchair 10 (hereinafter referred to as an existing footrest). It is possible to fix to 11).

  The fixing means includes a footrest portion 20 disposed above (front side) of the existing footrest 11, a facing portion 24 disposed below (back side) of the existing footrest 11, and the footrest portion 20 and the facing portion 24 connected to each other. The connecting portion 23 is configured to be configured. The facing portion 24 is disposed at a certain distance from the footrest portion 20 and faces the footrest portion 20 in a situation where it is removed from the existing footrest 11.

  The connection part 23 is arrange | positioned so that the surface (namely, end surface of the width direction) parallel to the advancing direction of the wheelchair in the footrest part 20 may be followed. Further, the connecting portion 23 is a plate-like member, and is arranged so that its planar direction is substantially perpendicular to the planar direction of the footrest portion 20. Furthermore, since the foot placement part 20 and the facing part 24 are substantially parallel, the relationship between the connecting part 23 and the facing part 24 is also perpendicular to each other. As a result, the footrest portion 20 is disposed at the upper end edge in the vertical direction of the connecting portion 23, and the facing portion 24 is disposed at the lower end edge. Therefore, the cross-section of the detachable wheelchair footrest 12 is U-shaped such that the connecting portion 20 forms a side portion. This U-shape is set so that h1> h2, where h1 is the width on the connecting portion 23 side and h2 is the width on the opening side.

  Since the connecting portion 23 generates a restoring force that maintains a constant gap h2 between the footrest portion 20 and the facing portion 24 by its own elastic deformation, the footrest portion 20 and the facing portion 24 can be used to connect the existing footrest 11 to each other. It can be pinched.

  Specifically, the foot placement portion 20, the facing portion 24, and the connecting portion 23 are integrally formed by bending spring steel. The reason for this is to increase the restoring force and increase the clamping force for the existing footrest 11. In addition, although this embodiment shows the case where spring steel is used as a whole, the present invention is not limited to this. For example, only the side surface portion 23 may be made of spring steel, and the footrest portion 20, the side surface portion 23, and A material having elasticity or flexibility other than spring steel, such as rubber, metal, or plastic, may be employed for the facing portion 24.

  When fixing the detachable wheelchair footrest 12 to the existing footrest 11, first, the gap h2 between the footrest portion 20 and the facing portion 24 is widened by hand. Thereby, in particular, since the connecting portion 23 is elastically deformed, a restoring force is generated to restore the widened gap h2. The existing footrest 11 is inserted from the opening side into a U-shaped space formed between the footrest portion 20 and the facing portion 24 while resisting this restoring force, and when the insertion is completed, the hand is released. The existing footrest 11 is sandwiched between the footrest portion 20 and the facing portion 24 by the restoring force. As a result, the footrest portion 20 and the facing portion 24 of the detachable wheelchair footrest 12 are in a state of sandwiching the existing footrest 11, and the detachable wheelchair footrest 12 can be fixed to the existing footrest 11.

In addition, although the case where the pinching force is generated by the spring steel is shown here, in short, it is sufficient if a mechanism capable of generating the pinching force is interposed between the footrest portion 20 and the facing portion 24. .
By adopting the above configuration, the wheelchair 10 that has been widely used in the world can be easily and quickly and reliably attached and detached, so that the foot of the wheelchair 10 user can be prevented from slipping while the wheelchair 10 is being used. be able to. Further, since the angle of the toe portion 22 can be freely changed, the toe portion 22 does not get in the way when getting on or getting off. Moreover, since it is detachable, it does not get in the way when the wheelchair is stored.

  The main part of the detachable wheelchair footrest 12 is formed of metal, plastic, rubber or elastomer. Examples of the metal used include steels and alloys made of heavy metals such as iron, chromium and copper, and light metals such as aluminum, titanium and magnesium. Plastics include thermoplastic resins such as polyethylene, polypropylene, polyester, ABS resin, vinyl chloride resin and methacrylic resin, thermosetting resins such as unsaturated polyester resin and epoxy resin, and reinforced plastics with glass fiber added to these Is mentioned. Examples of the rubber and elastomer include synthetic rubber such as natural rubber, diene rubber, olefin rubber, and silicon rubber, and various synthetic elastomers.

  Next, with reference to FIG. 5, the usage method of the footrest 12 for removable wheelchairs in this embodiment is demonstrated. The detachable wheelchair footrest 12 is attached to the existing footrest 11 so that the angle between the toe portion 22 and the footrest portion 20 does not interfere with the placement of the foot on the footrest portion 20. 24 is substantially parallel. Thereafter, the foot of the wheelchair 10 user is placed on the footrest portion 20 so that the heel contacts the heel portion 21, and then the toe portion 22 is lifted until it is substantially perpendicular to the footrest portion 20. If the toe portion 22 is fixed at a certain angle by the angle adjusting mechanism, the boarding is completed.

  Thereby, the foot of the user of the wheelchair 10 can be surely placed on the footrest 12 for the detachable wheelchair, and slipping of the foot toward the heel side and the toe side can be prevented.

  As another aspect of the fixing means in the present embodiment, as shown in FIG. 6, a magnetic member 40 </ b> A is installed on a part or all of the footrest portion 20, and the existing footrest 11 is in contact with the footrest portion 20. By installing the magnetic member 40 </ b> B on a part or all of the footrest 12, the detachable wheelchair footrest 12 can be fixed to the existing footrest 11 by the attractive force due to the magnetic force between the footrest 20 and the existing footrest 11. In this case, the facing portion 24 is not necessarily provided. Moreover, when one of the footrest part 20 or the existing footrest 11 is a metal that can be attracted by magnetic force, it can be sufficiently fixed only by arranging a magnetic member on the other side.

  Moreover, when the footrest 12 for detachable wheelchairs is already provided with the footrest part 20 and the opposing part 24 as shown in FIG. 1, you may provide a magnetic member in both. In this case, a pinching force is generated using the magnetic force of the magnetic member instead of the restoring force by the connecting portion. As a result, the detachable wheelchair footrest 12 sandwiches the existing footrest 11 by the magnetic force, and the detachable wheelchair footrest 12 can be securely fixed to the existing footrest 11.

  Next, with reference to FIG. 7, the wheelchair 100 which concerns on 2nd Embodiment, and the footrest 112 previously installed in this wheelchair 100 are demonstrated. The footrest 112 is not detachable as in the first embodiment, but in the basic structure, the lower two digits are the same for the parts and members that are substantially the same as the detachable wheelchair footrest 12 of the first embodiment. By using the reference numerals, a specific description is omitted.

  The footrest 112 in the wheelchair 100 includes a foot placement part 120, a heel part 121, and a toe part 122. The heel part 121 is disposed so that the angle formed with the footrest part 120 is substantially vertical, and the user's foot of the wheelchair 100 can be prevented from sliding backward. The toe portion 122 is swingable with respect to the flange portion 121 and can be fixed at a specific angle. As shown in this figure, before getting on the wheelchair 100, the footrest part 120 and the toe part 122 are kept parallel, and after getting on, one of the plurality of holes 134 of the semicircular plate 133A is locked. If the pin 134A is inserted, the toe portion 122 can be fixed to the foot placement portion 120 at a certain angle. Accordingly, it is possible to prevent the user's feet from falling off the footrest 112 while riding.

  According to the present invention, a wheelchair that can be used safely by an assistant or the like and that is safe and comfortable for a wheelchair user is provided.

The perspective view of the footrest for detachable wheelchairs concerning a 1st embodiment. Side view of the detachable wheelchair footrest Top view of the detachable wheelchair footrest Rear view of the detachable wheelchair footrest Side view showing the use state of the detachable wheelchair footrest Footrest provided with a magnetic member as another example of the first embodiment The partial expansion perspective view which shows the wheelchair and footrest which concern on 2nd Embodiment (A) Overall view of a conventional wheelchair, (B) Enlarged view of the footrest part while using the wheelchair, (C) Schematic diagram when the foot of the wheelchair user slips backward

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wheelchair 11 Existing footrest 12 Footrest 20 for detachable wheelchairs Footrest part 21 Claw part 22 Toe part 23 Side part 24 Opposite part 30 Connecting pin 31A Fixing pin 31B Fixing pin 32A Locking pin 32B Locking pin 33A Semicircular plate 33B Half Circular plate 34 Hole 40A Magnetic member 40B Magnetic member 100 Wheelchair 112 Footrest

Claims (13)

A footrest for placing a foot while riding in a wheelchair;
A heel part that is arranged at a certain angle with respect to the footrest part and prevents the foot from sliding down to the heel side;
Fixing means to be detachable from an existing wheelchair;
A footrest for a detachable wheelchair characterized by comprising:   The detachable wheelchair footrest according to claim 1, wherein the fixing means can be fixed to an existing footrest previously installed in the wheelchair. The fixing means includes
The footrest located above the existing footrest;
An opposing part located below the existing footrest and arranged at a position facing the footing part at a certain distance from the footing part,
A clamping force generating mechanism for generating a clamping force for clamping the existing footrest by the foot placement part and the opposing part;
The detachable wheelchair footrest according to claim 2, comprising:   The pinching force generating mechanism includes a connecting portion that connects the footrest portion and the facing portion and can generate a pinching force between the footrest portion and the facing portion by elasticity or flexibility. The detachable wheelchair footrest according to claim 3.   The clamping force generating mechanism includes a magnetic part that is disposed on at least one of the footrest part and the opposing part and can generate a clamping force between the footrest part and the opposing part by magnetism. The footrest for detachable wheelchairs according to claim 3.   The fixing means is disposed between the footrest, the facing portion disposed at a position facing the footrest at a certain distance from the footrest, and between the footrest and the facing portion. The side surface portion is formed in a U-shaped cross section, and the existing footrest is inserted between the footrest portion and the facing portion, and can be fixed to the existing footrest. The footrest for detachable wheelchairs according to 2. A toe part that is disposed on the toe side of the foot placement part and prevents the foot from sliding down to the toe side; and
An angle variable mechanism that makes it possible to change an angle formed by the footrest portion and the toe portion; and
The footrest for a detachable wheelchair according to any one of claims 1 to 6, characterized by comprising:   The footrest for a detachable wheelchair according to any one of claims 1 to 7, wherein the main part is formed of metal, plastic, rubber, or elastomer. A footrest for placing a foot while riding in a wheelchair;
A heel part that is arranged at a certain angle with respect to the footrest part and prevents the foot from sliding down to the heel side;
A footrest for a wheelchair, comprising: A toe portion for preventing the foot from slipping to the toe side of the foot placement portion;
An angle variable mechanism that makes it possible to change an angle formed by the footrest portion and the toe portion; and
The footrest for wheelchairs according to claim 9, characterized by comprising: Characterized in that the main part is made of metal, plastic, rubber or elastomer,
The footrest for detachable wheelchairs according to claim 9 or 10. A wheelchair with a footrest for resting while in a wheelchair,
The footrest has a footrest for placing a foot during wheelchair riding;
A heel part that is arranged at a certain angle with respect to the footrest part and prevents the foot from sliding down to the heel side;
A wheelchair characterized by comprising: A toe portion for preventing the foot from slipping to the toe side of the foot placement portion;
An angle variable mechanism that makes it possible to change an angle formed by the footrest portion and the toe portion; and
The wheelchair according to claim 12, comprising:

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