JP3204702U - Wheelchair tire cover - Google Patents

Abstract

To provide a cover capable of uniformly covering the outer periphery of a wheelchair tire with a simple structure. A cover 1 is mounted so as to cover a surface of a tire 5 constituting a wheel 3 of a wheelchair 2. The cover 1 is formed in a thin film shape and in an annular shape by an elastic material, and the surface of the tire 5 has a half or more circumference in its cross section. And has a circumference shorter than the length of the outer circumference of the tire 5. [Selection] Figure 1

Description

  The present invention relates to a wheelchair tire cover.

  The wheelchair sometimes goes back and forth between indoors and outdoors when used, and if the tires are dirty when returning from the outside to the inside, the inside of the wheelchair is soiled.

  In addition, if water or the like adheres to the tire for any reason regardless of whether it is indoors or outdoors, it is assumed that the wheelchair is difficult to control due to slipping of the tire.

  Conventionally, for example, a technique disclosed in Patent Document 1 has been proposed to deal with such a problem.

  In this conventional technique, a band-shaped cover having a predetermined width is formed of a flexible material, and the cover is wound around the outer periphery of the tire over the entire circumference, and both ends of the cover are connected to the both ends. By connecting with a magnet attached to the tire, the tire is covered over the entire circumference.

  Further, when the belt-like cover is wound around the tire, both side edges in the width direction are lifted from the tire in a state where the intermediate portion in the width direction is in contact with the surface of the tire.

  In order to avoid such inconveniences, in the above-described prior art, in the state in which the belt-like cover is formed in a hook shape and attached to the tire, both side edges of the cover are opposed to both side faces of the tire. I try to let them.

JP 2011-65814 A

In the above-described conventional technology, when the cover is attached to the tire, both ends are connected by magnets.
Therefore, the number of parts constituting the cover is large, and a special structure for fixing the magnet is required, and the configuration becomes extremely complicated.

  Furthermore, when the cover is fixed, both ends thereof are overlapped, and the cover is connected by attracting the magnet at the overlapped portion.

  However, the overlapping portion of the cover forms a step on the outer peripheral portion of the tire, which adversely affects running performance.

  On the other hand, in order to eliminate the level difference, it is also conceivable that the two ends of the cover are connected to each other by suction with a magnet.

However, even with such a connection structure, discontinuous portions are formed at the connection portions at both ends of the cover.
For this reason, when water adheres to the tire, there is a concern that the water may ooze out from the discontinuity of the cover onto the cover surface.

  The present invention has been made as a solution to the problems remaining in the prior art described above, and should provide a cover that can uniformly cover the outer periphery of the tire with a simple structure. Let it be an issue.

  A wheelchair tire cover according to the present invention is a cover that is attached to cover the surface of a tire that constitutes a wheel, and is formed into a thin film and an annular shape by an elastic material. It has a width to cover and has a shorter circumference than the outer circumference of the tire.

  With such a configuration, in use, a part of the cover is covered so as to cover a part of the tire, and then the cover is stretched using its elasticity while the circumferential direction of the tire is extended. By sequentially covering the cover, the cover can be covered over the entire circumference of the tire.

A portion of the cover that covers the tire is deformed so as to wrap the tire due to its elasticity, whereby the cover is integrated with the tire.
Further, when removing the cover, an operation opposite to that described above may be performed.

Thus, the cover of the present invention can be easily attached to and detached from the tire using its elasticity.
And the said cover is used independently, the additional structure for fixing to the said tire is unnecessary, and the structure is very simple.

In addition, the cover is mounted uniformly over the entire circumference of the tire when mounted on the tire.
Therefore, no step is formed on the outer periphery of the tire, and stable running performance is ensured.

  And many convex parts can also be formed on the surface of the cover that faces outward when mounted on the tire.

By setting it as such a structure, the sliding of a wheelchair can be suppressed by raising the friction with the said cover and a running surface.
Thereby, running stability can be further improved.

  According to the tire cover of the wheelchair of the present invention, the configuration can be simplified by configuring with a single member, and the tire can be uniformly covered over the entire circumference.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is an external perspective view showing a mounting state on a wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a cover in an attached state, showing an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is an external perspective view showing a state where a cover is widened. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and is an enlarged longitudinal sectional view of a main part showing a state where a cover is mounted on a tire.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In these drawings, reference numeral 1 denotes a cover according to the present embodiment. As shown in FIG. 1, the cover 1 is mounted so as to cover the outer periphery of each of the pair of wheels 3 attached to both sides of the wheelchair 2.

  The wheel 3 includes a wheel 4 that is rotatably attached to the vehicle body of the wheelchair 2 and a tire 5 that is attached to the wheel 4. The wheel 3 covers the outer periphery of the tire 5 and relates to the present embodiment. The cover 1 is attached.

  The cover 1 according to the present embodiment is formed in a thin film shape and in an annular shape by an elastic material, and has a width W that covers the tire 5 surface over a half circumference in its cross section, as shown in FIG. 5 has a shorter circumferential length than the outer circumferential length.

  That is, when the inner diameter in the state where the cover 1 is annularly expanded is r as shown in FIG. 3 and the outer diameter of the tire 5 is R as shown in FIG. Is set.

  By using such a configuration, in use, a part of the cover 1 is covered so as to cover a part of the tire 5, and then the cover 1 is stretched using its elasticity while the cover 1 is stretched. By sequentially covering the tire 5 in the circumferential direction, the cover 1 can be covered over the entire circumference of the tire 5 as shown in FIG.

  By such an operation, the portion of the cover 1 covered by the tire 5 is deformed so as to wrap the tire 5 due to its elasticity, and as a result, as shown in FIG. 5 is integrated.

  On the other hand, when removing the cover 1 from the tire 5, an operation opposite to the above-described operation may be performed.

Thus, the cover 1 of the present invention can be easily attached to and detached from the tire 5 using its elasticity.
The cover 1 is used alone and is fixed to the tire 5 by its own elasticity, so that no additional structure for mounting is required, and the configuration is extremely simple.

Moreover, the cover 1 is mounted uniformly over the entire circumference of the tire 5 in a state where the cover 1 is mounted on the tire 5.
Therefore, no step is formed on the outer periphery of the tire 5, and stable running performance is ensured.

  In addition, the shape, dimension, etc. shown in the said embodiment are examples, and can be variously changed based on a design request etc.

  For example, a large number of convex portions can be formed on the surface of the cover 1 that faces outward when the tire 1 is mounted.

By setting it as such a structure, the slip of the wheelchair 2 can be suppressed by raising the friction with the said cover 1 and a running surface.
Thereby, running stability can be further improved.

When the cover 1 is not in use, the outer shape can be freely changed as shown in FIG. 2, whereby the cover 1 can be folded and stored.
This facilitates storage in the wheelchair 2 and carrying.

  Furthermore, it is also possible to give an advertisement function to the surface of the cover 1 by attaching characters, designs, etc., as indicated by the symbol Z in FIG.

1 Cover 2 Wheelchair 3 Wheel 4 Wheel 5 Tire r Cover radius R Tire outer diameter W Width Z Letters and designs

Claims (2)

  A cover that is mounted to cover the surface of a tire that constitutes a wheel of a wheelchair, is formed in a thin film shape and in an annular shape by an elastic material, and has a width that covers a half or more circumference in the cross section of the tire surface, A wheelchair tire cover having a circumference shorter than a length of an outer circumference of the tire. 2. The wheelchair tire cover according to claim 1, wherein a plurality of convex portions are formed on a surface positioned outward in a state where the tire is mounted on the tire.