JPH07236660A - Wheelchair - Google Patents

Abstract

PURPOSE:To provide a wheelchair easy to maintain in which a foot plate can be easily housed, and the number of part items and kinds of parts are minimized by use of a simple structure. CONSTITUTION:A wheelchair has a pair of front struts 11 supported on the left and right-sides in the front of a wheelchair body 10, respectively, and foot plates 30 laid over the longitudinal direction of the front struts 11 and supported in such a manner as to be rotatable with the longitudinal direction of the wheelchair body 10 as the axial center.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair, and more specifically, to a lower end portion of a front pillar supported on both front left and right sides of a wheelchair body, provided with a foot plate for a user of the wheelchair to put his / her foot on Regarding the improvement of wheelchairs.

[0002]

2. Description of the Related Art Conventionally, various wheelchairs having a foot plate have been devised, but some of them are supported on the left side or the right side in front of the wheelchair body, for example, as shown in FIG. The lower ends of the pair of front support pillars are formed in a substantially L shape so as to protrude forward of the wheelchair body, and the foot plate is inserted into the protruding portion of the front support pillar and the protruding portions are used as an axis center. Some are supported rotatably. This is because the foot plate is rotated upward to stand up so that the foot plate does not get in the way when the user gets on and off the wheelchair, or the entire wheelchair can be folded (arrow in FIG. 6). b) is made possible.

However, the wheelchair as shown in FIG.
Even if the foot plate is erected, the entire foot plate protrudes in front of the front support pillar, so that when the user gets on and off the wheelchair, the entire foot plate protruding from the front support pillar may be an obstacle. It was something. Also, in the case of a foldable wheelchair, even if it is folded, the entire foot plate protrudes from the front strut,
I could not fit the whole compactly.

As a wheelchair that solves such a problem, for example, as shown in FIG. 7, a foot plate is supported on a lower end portion of a front support pillar so as to be rotatable about a longitudinal direction and a width direction of the wheelchair main body. There is something. This is because after rotating the foot plate upright by rotating the wheelchair in the longitudinal direction of the wheelchair (arrow c in FIG. 7), it further rotates in the widthwise direction of the wheelchair and tilting it backward (FIG. 7). The arrow d) in Fig. 4 is a structure in which the entire foot plate can be housed outside and rearward of the front support.

Further, as shown in FIG. 8, for example, an inclined strut protruding obliquely downward to the outside of the front strut is fixed to the lower end portion of the front strut, and the foot plate is rotated around the inclined strut as an axis. Some are freely supported. This is such that the entire foot plate can be housed behind and outside the front support by rotating the foot plate diagonally (arrow e in FIG. 8).

[0006]

However, even the above-mentioned wheelchair has the following problems.

First, in the wheelchair as shown in FIG. 7, when the foot plate is stored, the foot plate must be erected and then the foot plate must be tilted backward, which requires complicated work. It was something to do. Further, there is a problem that the foot plate needs a complicated structure for rotatably supporting the front and rear direction and the width direction of the wheelchair main body as an axis, and hence the number of parts is increased.

In the wheelchair as shown in FIG. 8, the foot plate can be housed by a simple work of rotating the foot plate diagonally, but the foot plate and the front support column are provided with a so-called right side dedicated to the right side. There has been a problem that selfishness and so-called left-handedness for exclusive use on the left side occur, and therefore the number of types of parts increases.

Further, in each of the above-mentioned wheelchairs, since the foot is placed on the foot plate in a fallen state,
A stopper must be provided to prevent the foot plate from rotating downwards from its collapsed position. For this reason, the structure of the foot plate mounting part becomes complicated and the number of parts increases, and when a stopper is provided on the front strut itself or the foot plate itself, the front strut or foot plate is right-handed or left-handed. There was also the problem of selfishness and an increase in the number of component types.

Since a wheelchair is used by an injured person, a sick person, a physically handicapped person, or the like who cannot move freely, the operation must be simplified as much as possible, and the user himself / herself must Since maintenance such as replacement of parts, disassembly, assembly, etc. may be performed, it is necessary to reduce the number of parts and types of parts as much as possible to simplify the work such as maintenance, disassembly, and assembly.

Each of the present inventions has been made in view of such circumstances, and an object thereof is, first, in the invention of claim 1, the foot plate can be easily accommodated and the number of parts is increased. Another object of the present invention is to provide a wheelchair having a small number of parts and easy maintenance, etc. with a simple structure.

Next, according to the second aspect of the invention, not only the foot plate can be easily housed, the number of parts and the kind of parts are small and maintenance is easy, but also the foot plate is securely fixed in a tilted state. It is to provide a wheelchair that can be performed with a simple structure.

Finally, according to the third aspect of the invention, not only the foot plate can be easily housed, but the number of parts and the kind of parts are small and maintenance is easy.
Alternatively, in addition to providing a wheelchair with a simple structure, not only can the footplate be securely fixed in a fallen state, but also the user can securely place his / her foot on the fallen footplate. It is to be.

[0014]

Means for solving the above problems will be described with reference to the reference numerals used in the drawings. First, the invention according to claim 1 A pair of front struts 11 supported on the left side or the right side of the front of the main body 10 and a lower end portion of each of the front struts 11 straddled in the front-back direction of the front struts 11 and extending in the front-back direction of the wheelchair body 10. A wheelchair characterized by having a foot plate 30 rotatably supported on its axis "
Is.

Next, the invention according to claim 2 is provided with "a mounting member 20 fixed to the lower end portion of each of the front columns 11 and having both ends projecting in the front-rear direction of the front columns 11 in a substantially kamaboko shape. The foot plate 30 is provided with fitting portions 31 that are fitted to both end portions of the mounting member 20 and that come into contact with the side surfaces 22 of the mounting member 20 when the foot plate 30 is tilted down. The wheelchair according to claim 1, wherein the wheelchair is fitted to the mounting member 20 at a joint portion 31 and is rotatably supported.

Finally, the invention of claim 3 is characterized in that "a flexible footrest 40 is slackened and stretched between the front support columns 11.
It is the wheelchair mentioned.

[0017]

The wheelchair according to the present invention thus constructed operates as follows.

First, in the wheelchair according to the invention of claim 1, the foot plate 30 is laid across the front support 11 in the front-rear direction. For example, as shown in FIG. 1, when the foot plate 30 is erected, Although the foot plate 30 projects in front of the front support 11, the projecting portion is a part of the foot plate 30 rather than the entire foot plate 30. Therefore, this projecting portion can be used for getting on and off as compared with the wheelchair shown in FIG. It is less likely to get in the way, and in the case of a folding wheelchair, folding makes the whole more compact.

Further, since the foot plate 30 can be housed by a single turning operation, the operation is easier and the structure is simplified as compared with the wheelchair shown in FIG. The points will also decrease.

Furthermore, since the foot plates 30 having the same shape can be used on both left and right sides, the number of types of parts is smaller than that of the wheelchair shown in FIG.

Next, the wheelchair according to the invention of claim 2 is the wheelchair according to the invention of claim 1, wherein the foot plate 3
No. 0 is attached to the front support 11 via mounting members 20 that are formed in a substantially semi-cylindrical shape and have both ends protruding in the front-back direction of the front support 11. Here, in the foot plate 30,
Fitting portions 31 that are fitted to both end portions of the mounting member 20 and contact the side surfaces 22 of the mounting member 20 when the foot plate 30 is tilted are provided.
Is fitted to the mounting member 20 at the fitting portion 31 and is rotatably supported. Therefore, for example, as shown in FIG. 4, when the foot plate 30 is tilted, the foot plate 30 does not rotate further downward, and a stopper that prevents the foot plate 30 from rotating is provided as in the conventional case. There is no need to provide it separately.

Therefore, in addition to the operation of the invention of claim 1 described above, it is not necessary to separately provide a stopper for preventing the rotation of the foot plate 30, so that the structure is further simplified and the number of parts is further reduced. You will get it. Since the foot plate 30 and the mounting member 20 having the same shape can be used on both left and right sides, the number of types of parts does not increase.

Finally, the wheelchair according to the invention of claim 3 is
In the wheelchair according to the invention of claim 1 or 2,
A footrest 40 having flexibility is slackened and stretched between the front columns 11. Therefore, in addition to the action of the invention of claim 1 or claim 2 described above, it acts as follows.

Generally, in a wheelchair, a so-called footrest 40 formed of cloth or leather for holding the calf portion of the user's foot is stretched between the left and right front columns 11 without slack. However, the foot plate 30
When the front strut 11 is laid across in the front-rear direction, the foot plate 30 is located across the front and rear of the front strut 11, for example, as shown in FIG. When the foot is placed on the entire upper surface of the foot plate 30 including the foot plate, the footrest 40 may be an obstacle. Further, in some cases, the footrest 40 becomes an obstacle, so that the foot can be placed only on the front part of the foot plate 30, and the foot placed on the foot plate 30 may be in an unstable state.

Therefore, when the footrest 40 is made of a flexible material and is stretched between the left and right front columns 11 in a loosened manner, as shown in FIG. 5, for example, the footrest 40 is formed. The foot can be placed on the entire upper surface of the foot plate 30 without any hindrance.

[0026]

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

FIG. 1 shows an embodiment of a wheelchair according to the inventions of claims 1 and 2. In this wheelchair, as shown in FIG. 3, at the lower end portions of a pair of front support columns 11 supported on the left side or the right side of the front of the wheelchair main body 10, as shown in FIG. The wheelchair body 30 is rotatably supported about the longitudinal direction of the wheelchair body 10.

In the present embodiment, as in the invention of claim 2, the foot plate 30 is attached to the front support 11 via the mounting member 20 as described below. However, the invention is not limited to this.

As shown in FIG. 2, the mounting member 20 is formed in a generally semi-cylindrical shape, and the mounting member 20 is provided with a through hole 21 that penetrates vertically. The front support 11 is inserted into the through hole 21 of the mounting member 20, and both ends of the front support 11 are protruded in the front-rear direction of the front support 11 by bolts 22 as shown in FIG. It is fixed to the lower end. The mounting member 20
Has the same shape on both left and right sides of the wheelchair, so that the mounting member 20 does not have right-handedness and left-handedness, and the number of parts is reduced.

Further, the foot plate 30 is provided with fitting portions 31 which are fitted to both ends of the above-mentioned mounting member 20. The fitting portions 31 are fitted to the mounting member 20 and are mounted. The members 20 are rotatably supported via bolts 32 around the ends of the member 20, that is, the front-rear direction of the wheelchair. When the user gets on and off the wheelchair or folds in the folding wheelchair, as shown in FIG. 1, the foot plate 30 can be rotated to stand up (arrow a in FIG. 1). There is.

Further, the fitting portion 31 of the foot plate 30
As shown in FIG. 4, when the foot plate 30 is tilted, it comes into contact with the side surface 22 of the mounting member 20 to prevent the foot plate 30 from rotating further downward. . Here, since the mounting member 20 is formed in a substantially semi-cylindrical shape, the fitting portion 31 of the foot plate 30 and the side surface 22 of the mounting member 20 contact each other when the foot plate 30 rotates upward. Therefore, the foot plate 30 can be rotated upward without any trouble.

The foot plate 30 has the same shape on both the left and right sides of the wheelchair, so that the foot plate 30 is not right-handed or left-handed, and the number of parts is reduced.

On the other hand, as shown in FIG. 1, the footrest 40 formed of a flexible material such as cloth, leather, or a synthetic resin sheet is provided between the left and right front columns 11 as in the invention of claim 3. However, it is stretched loosely. Then, as shown in FIG. 5, even if the user puts his / her foot on the entire upper surface of the foot plate 30, the footrest 40 does not hinder anything, and moreover, the footrest 40 keeps the calf portion of the foot of the user. Make sure to hold it. In addition,
This is not the case in the inventions of claims 1 and 2.

[0034]

As described in detail above, first of all, in the wheelchair according to the invention of claim 1, a foot plate is provided on the lower end portion of the front support pillar in the front-rear direction of the front support pillar and in the front-rear direction of the wheelchair body. The foot plate is rotatably supported around the axis, and the foot plate can be erected with a single turning operation, and the erected foot plate does not get in the way when getting on and off. Is a product that can be folded and stored in a compact size.

Next, a wheelchair according to a second aspect of the invention is the wheelchair according to the first aspect of the invention, wherein the lower end of the front support column is
Attach the mounting members that are formed into a substantially semi-cylindrical shape with both ends projecting in the front-rear direction of the front support, and fit to the foot plates at both ends of the mounting members, and if the foot plates are tilted, attach to the side surfaces of the mounting members. A fitting part that abuts is provided, and this fitting part fits the foot plate to the mounting member and rotatably supports it. It is designed so that it can be prevented from moving.

Finally, the wheelchair according to the invention of claim 3 is
The wheelchair according to claim 1 or 2, wherein a flexible footrest is slackened and stretched between the left and right front struts, and when the user puts his / her foot on the entire upper surface of the foot plate. , The footrest is designed so that it does not get in the way.

Therefore, first, according to the invention of claim 1,
A wheelchair that can easily store the foot plate, has a small number of parts and types of parts, and is easy to maintain
It can be provided by a simple structure.

Next, according to the second aspect of the invention, not only the foot plate can be easily housed, but also the number of parts and the kind of parts are small and maintenance is easy. A wheelchair that can be fixed can be provided with a simple structure.

Finally, according to the invention of claim 3, not only the foot plate can be easily housed, but also the number of parts and the kind of parts are small and maintenance is easy. It is possible to provide a wheelchair that not only can be reliably fixed in a fallen state but also that the user can surely put his / her foot on the fallen foot plate with a simple structure.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of a wheelchair according to the present invention.

FIG. 2 is an enlarged perspective view of a main part of FIG.

FIG. 3 is a view on arrow C in FIG.

4 is a sectional view taken along line AA in FIG.

5 is a view on arrow B in FIG. 1. FIG.

FIG. 6 is a partial perspective view showing an example of a conventional wheelchair.

FIG. 7 is a partial perspective view showing another example of a conventional wheelchair.

FIG. 8 is a partial perspective view showing still another example of the conventional wheelchair.

[Explanation of symbols]

 10 Wheelchair Main Body 11 Front Strut 20 Mounting Member 21 Through Hole 22 Bolt 30 Foot Plate 31 Fitting Part 32 Bolt 40 Foot Rest

Claims (3)

[Claims] 1. A pair of front struts supported on the left side or the right side of the front of the wheelchair body, and a lower end portion of each of these front struts, which is laid across the front struts in the front-rear direction of the wheelchair body. A wheelchair, comprising: a foot plate rotatably supported about an axis. 2. A mounting member fixed to the lower end portion of each front strut, and having both ends thereof formed in a substantially semi-cylindrical shape protruding in the front-back direction of the front strut, wherein both end portions of the mounting member are attached to the foot plate. A fitting portion that comes into contact with the side surface of the mounting member when the foot plate is tilted and is fitted to the foot plate, and the foot plate is rotatably supported while being fitted to the mounting member at the fitting portion. The wheelchair according to claim 1, wherein: 3. A flexible footrest is slackened and stretched between the front pillars.
Alternatively, the wheelchair according to claim 2.