JP2002085464A - Fender for wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fender for a wheelchair which has a rational shape, is light and free from deformation. SOLUTION: A guard plate 14 is a rectangle with a partly protruded part, and is formed so as to be provided with a protruded circular-arc-like fender 15 and a protrusive streak part 30 along the surroundings of the guard plate 14, which are integrally formed of a synthetic resin. On the inside or the seat side of the guard plate 14, a concavely recessed part 20 is provided along the fender 15 and the inside of the fender is made to be a cavity. The recessed part 20 has a cross section similar to that of the fender 15 and is formed so as to be an almost triangle in which the end is tapered. The fender 15 is formed so that the upper part thereof is inclined down toward an external end, and the end is formed so as to be a smooth curve.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mudguard for a wheelchair, and more particularly to an improvement thereof.

[0002]

2. Description of the Related Art Wheelchairs are provided with elbow pads on both sides of a seat, driving wheels and auxiliary wheels on both sides, and generally have an inflatable shin support in front of them, although there are some differences depending on the model. It has a structure with a footrest with a pad and a footrest, and a mudguard connected to the frame by mounting hardware is provided above the drive wheels.

[0003]

In a conventional wheelchair mudguard, as shown in FIG. 5, the wheelchair is attached with bolts and nuts from base frame 101 inside wheels 109 via long retainers 117, 117. The long retainer 11 is easy to bend in addition to being troublesome to attach.
7, 117, the mudguard 115 was also easily deformed.
Further, since the guard plate 114 is provided so as to have a gap between the guard plate 114 provided on both sides of the seat and the guard plate 114 and the mudguard 115, the occupant can move while receiving nursing care. Occasionally, a player may get his / her hands idle, or, when boarding, contact the skirt of the clothing with the drive wheels to make it dirty and unpleasant (first conventional wheelchair mudguard).

[0004] Therefore, as shown in FIG.
A wheelchair in which a gap is eliminated by integrally forming a mudguard 215 disclosed in Japanese Patent No. 285500 with a guard plate 214 has been proposed (a second conventional wheelchair mudguard). However, due to the essential common function of a wheelchair in which wheels are arranged on both sides of the seat and the wheels are directly operated and driven by the occupant's arms, the mudguard 215 in this case also protrudes by a length to cover the wheels. In order to prevent deformation due to minimum external force and secure its shape, it is necessary to increase the thickness of mudguards and to provide ribs, which increases the weight and makes it inconvenient to handle. I was In addition, the tip side of the mudguard 215 protruding outwardly at a substantially right angle from the guard plate 214 has a limit in increasing the thickness of the mudguard 215 for the above-described reason. When manipulating the, if the hand or the arm hits the tip side of the mudguard 215, the user may feel pain. In addition, the formation of such a mudguard has a strong image of an old mudguard, and the visual sensation received from its appearance is empirically reminiscent of the wheels rotating close to the body. Yes, it is forcibly associated with negative emotions such as danger and tension, and the negative effects on the spirit cannot be ignored.

[0005] On the other hand, regarding the use of a wheelchair, it is often the case that the passenger always rides in close contact with the occupant's daily life.
In particular, the seats and elbow rests were soiled, and bacteria and microorganisms such as Escherichia coli were promoted, and odors were easily generated. Therefore, antibacterial and deodorant measures are taken by using a seat with an antibacterial deodorant or applying an antibacterial deodorant to the inside of the armrest 213 and the guard plate 214, but the former seat is washed by washing. The antibacterial deodorant is washed away, and the application of the latter antibacterial deodorant is wiped off by directly touching the hand or clothing, so the duration of both antibacterial and deodorant effects must be shortened. I was no longer getting it.

In view of these problems, an object of the present invention is to provide a wheelchair mudguard that has a reasonable shape and is lightweight and does not deform.

[0007]

According to a first aspect of the present invention, a guard plate is provided between a wheelchair seat and a wheel, and a curvature along a wheel periphery from a side surface of the guard plate. A mudguard of a wheelchair that is formed so as to have at least a part of the mudguard, wherein a protruding tip side of the mudguard has a rounded shape, and a concave portion is provided inside the guard plate to reach the inside of the mudguard.

According to a second aspect of the present invention, in the first aspect of the present invention, the upper surface of the mudguard has a slope inclined downward toward the projecting tip.

According to a third aspect of the present invention, in the first or second aspect of the present invention, an antibacterial deodorant is applied or a filler containing the antibacterial deodorant is accommodated in the recess.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a wheelchair mudguard according to the present invention will be described with reference to the drawings. FIG. 1 shows the entire wheelchair. Reference numerals 1 and 1 denote a pair of left and right base frames in which an upper frame 1b is mounted on an upper portion of a side frame 1a. 2, the base material 3 is stretched between the two base frames 1 and 1, and the seat material 3 is extended until the seat portion is stretched by pulling the seat material 3 or the base frames 1 and 1 overlap with each other. So that it can be folded. On the front side of each of the base frames 1, 1, a footrest 4 having a footrest 4 a at a tip thereof.
4 is projected obliquely downward from the upper part, and a sheet material 5 for use as a pad for supporting the inflated shin is stretched between the footrests 4 and 4. At the rear of each of the base frames 1, 1, steering arms 6, 6 are provided to project right above,
A seat material 7 as a backrest is stretched between the steering arms 6 and 6.

On each side surface of the base frames 1 and 1, an auxiliary wheel 8 is provided at a front portion and a driving wheel 9 is provided at a rear portion. The auxiliary wheel 8 is provided to protrude below the base frame 1. The driving wheel 9 is attached to the support shaft 8a so as to be able to freely turn.
, And is provided with a drive ring 10 which is rotatably cantilevered and concentrically arranged. A side lever 11 is mounted on a side surface of each base frame 1 to move the brake pawl 11a away from the peripheral surface of the driving wheel by a rotation operation, and is attached to a grip 6a at the tip of the steering arm 6. A drum-type brake 12a operable by a grip lever 12 provided is used for driving wheels 9,
9 attached.

The upper frame 1b is assembled so as to protrude upward from a connection portion with the side frame 1a, has an armrest 13 on an upper edge, and a side surface is covered with a guard plate 14.
An opening window 16 is formed in the upper front part of the guard plate 14. Here, FIG. 2 shows the shapes of the guard plate 14, the mudguard 15 and the ridge 30. FIG. 2 (a) is a front view, and FIG. 2 (b) is a sectional view taken along line AA 'of FIG. As shown in FIG. 2A, the guard plate 14 has a rectangular shape having a partly projecting portion, and has a protruding arc-shaped mudguard 15 and a protruding ridge 30 along the periphery of the guard plate 14. And they are integrally formed of synthetic resin. A concave recess 20 is provided along the mudguard 15 inside the guard plate 14 on the seat surface side to form a hollow inside the mudguard. FIG.
As shown in (b), the cross-sectional shape of the concave portion 20 is similar to the cross-section of the mudguard 15 and is formed in a substantially triangular shape with a detailed tip, and the upper surface of the mudguard 15 faces the outer tip. It is formed so as to form a downward slope. Also mudguard 1
5 is formed with a smooth curved surface. An antibacterial deodorant 40 generated by using a photocatalyst made of, for example, an aqueous solution in which titanium oxide powder and a trace amount of an acid are dissolved is applied to the inner surface of the recess 20.

FIG. 3 shows a first modification of the mudguard of a wheelchair. In this manner, the upper and lower surfaces of the mudguard 15 may be formed substantially in parallel, and the protruding tip may have a rounded shape.
Further, the upper surface of the mudguard 15 may be formed by two inclined surfaces as in a second modification of the mudguard of a wheelchair shown in FIG.

In the wheelchair according to the present invention, since the mudguard 15 is provided with the recess 20 so that the cross-sectional shape of the mudguard 15 is similar to a substantially triangular shape, the rigidity of the mudguard 15 is improved. As a result, the mudguard 15 can secure required strength without reinforcing with ribs or the like, and it is not necessary to arrange reinforcing members and increase the thickness of the mud, so that the weight of the wheelchair can be reduced. If the guard plate 14 is made of a synthetic resin, the weight can be reduced more effectively, and it can be easily manufactured by vacuum molding. In addition, the ridges 30 provided along the periphery of the guard plate 14 together with the recesses 20 can further enhance the rigidity of the guard plate 14 due to its reinforcing action. In addition, since the mudguard 15 formed so as to be inclined downward toward the outer end is formed integrally with the guard plate 14, the mudguard 15 can be formed so as to have a particularly large volume and wrap the wheels. A comfortable environment can be provided to the user without any discomfort even if the arm of the user touches the arm. The wheelchair, which is visually perceived, reminds you that the wheels are spinning very close to the occupant's body, relieves anxiety and tension, and even forgets that it is mudguard. As a result, a stable mental state of the user can be maintained continuously during use.

Further, even if the sheet materials 3, 7 and the armrest 13 are soiled by occupants' sweat or meal spills, the antibacterial deodorant 40 can be applied to the recess 20 by applying the antibacterial deodorant 40 to the recess 20. Since the generation of microorganisms can be suppressed and the odor can be removed, a comfortable environment can be provided to the user. At the same time, the hand or clothing does not directly hit the recess 20, so that the effect can be maintained for a long time. In this case, the mudguard 15 may be formed using a transparent or translucent material, so that the antibacterial and deodorizing effect can be exhibited more favorably. Note that the antibacterial deodorizing effect may be maintained for a longer period of time by storing the antibacterial deodorant 40 in the hollow portion 20 in a lightweight filler such as a foam material. Further, an antibacterial deodorant and a fungicide may be mixed and used, or may be used as a substitute.

The wheelchair to which the mudguard according to the present invention is attached is not limited to a folding type.

[0017]

As described in detail above, according to the first aspect of the present invention, since the recess is provided inside the mudguard, the rigidity of the mudguard can be improved and the weight can be reduced.

According to the second aspect of the invention, in addition to the effect of the first aspect, the guard plate and the mudguard are integrally formed, and the upper surface of the mudguard is inclined downward toward the protruding tip side, so that the recess inside the mudguard is formed. A large part can be taken, and the sporty feeling received from the appearance of mudguard can be felt, so that a comfortable environment can be provided to the user.

According to the invention of claim 3, claim 1 or 2
In addition to the effects described above, the action of the antibacterial deodorant can be maintained for a long period of time, and a comfortable environment can be provided to the wheelchair user.

[Brief description of the drawings]

FIG. 1 is an explanatory view of mudguard of a wheelchair according to the present invention.

FIG. 2 shows the shape of a guard plate, a mudguard and a ridge,
(A) is a front view, (b) is AA 'sectional drawing of (a).

FIG. 3 shows a first modification of mudguard for wheelchairs.

FIG. 4 shows a second modification of the wheelchair mudguard.

FIG. 5 is a front view of a mudguard portion of the first conventional wheelchair.

FIG. 6 is a perspective view of a mudguard portion in a second conventional wheelchair.

[Explanation of symbols]

1. Base frame, 1a side frame, 1b upper frame, 2. X-shaped link, 3. Seat ground (for seat), 4. Foot rest, 4a.・
Seat ground (for putting), 6 ··· Steering arm, 6a ··· handle, 7 ··· Seat ground (for backrest), 8 ··· Auxiliary wheel, 8a ··· Support shaft, 9 ··· Drive wheel, 9a ··· Bearing, 10 ... drive ring, 11 ... side lever, 11
a brake brake, 12 grip lever, 12a
・ Brake, 13 ・ ・ Elbow rest, 14 ・ ・ Guard plate, 15
..Mudguards, 16 windows, windows, recesses, 30
.. ridges, 40 .. Antibacterial deodorant.

Claims (3)

[Claims] 1. A mudguard for a wheelchair, wherein a guard plate is provided between a wheelchair seat and a wheel, and is formed to project from a side surface of the guard plate so as to have at least a part of a curvature along an outer periphery of the wheel. A projecting tip side of the wheelchair is rounded, and a recessed portion is provided inside the guard plate so as to reach the inside of the mudguard. 2. The wheelchair mudguard according to claim 1, wherein the upper surface of the mudguard has a downward slope toward the projecting tip. 3. The mudguard of a wheelchair according to claim 1, wherein an antibacterial deodorant is applied or a filler containing the antibacterial deodorant is stored in the recess.