JP2002166822A - Seat belt device for wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat belt device for a wheelchair capable of enhancing the easiness in the belt setting operation. SOLUTION: The seat belt device 30 is attached to a wheelchair W through a fixing part 31, when belts 43R and 43L and a tongue 46 and buckle 47 for fastening them together will be positioned near the side with wheelchair W. This enhances the easiness in the belt setting works, and because the person sitting on the wheelchair can conduct the setting of the belts 43R and 43L her/himself, the burden of anybody in care is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seat belt device for a wheelchair.

[0002]

2. Description of the Related Art Some vehicles for welfare are provided with an installation space for a wheelchair on the floor and provided with a device for fixing the wheelchair with a belt, a wire, or the like. When a person sitting in a wheelchair is put on such a vehicle, the wheelchair is fixed on a floor with a belt or the like, and then, for example, as shown in FIG. Attach to passengers. The seat belt device 1 includes a winding device 3 installed on a floor 2, a belt 4 pulled out from the winding device 3, and a suspension member 5 for turning the belt 4 downward. Tongue 6 provided at the tip end position and intermediate position of belt 4
A, 6B, and a pair of buckles 7 erected from the floor 2 and capable of connecting the tongues 6A, 6B.

[0003]

In order to mount the seat belt device 1 on an occupant, first, the belt 4 provided on the vehicle side is pulled out, and the tongue 6A at the tip of the belt 4 is moved from the wheelchair W side to the right side (left side in the figure). ) Through the spokes of the wheel 8 and under the armrest (not shown), and is connected to the buckle 7 on the floor 2. Then, the tongue 6B provided at the intermediate position of the belt 4 is connected to the buckle 7 on the floor 2 through the spokes of the left wheel 8 and the lower side of the armrest (not shown) from the wheelchair W side. As described above, since the belt 4 must be moved back and forth between the vehicle and the wheelchair W, the work of mounting the seatbelt device 1 is extremely poor in workability, and it is naturally difficult for the occupant of the wheelchair W to wear the belt 4 itself. Therefore, the burden was placed on the attendant. The present invention has been made in view of the above circumstances, and its purpose is to:
It is an object of the present invention to provide a wheelchair seat belt device capable of improving wearing workability.

[0004]

According to a first aspect of the present invention, there is provided a wheelchair seat belt device for restraining an occupant of a wheelchair in a vehicle. The wheelchair has a fixing portion that can be fixed to a frame of the wheelchair, and the fixing portion is connected to at least one fastener for fastening a belt that is wound around a front surface of an occupant of the wheelchair. Have.

According to a second aspect of the present invention, in the first aspect, the fixing portion has a fixing member connecting portion provided between the vehicle and the vehicle and capable of connecting a wheelchair fixing device for fixing a wheelchair. It is characterized by where it is provided.

[0006] The invention of claim 3 is claim 1 or claim 2.
Wherein the belt portion is provided so as to be able to be pulled out from a winding device provided on the vehicle side.

[0007] The invention of claim 4 is the invention of claims 1 to 3.
In any one of the above, the fixing portion, a pair of mounting portions mounted at both end positions in the width direction with respect to the frame of the wheelchair, and the distance between the pair of mounting portions can be adjusted. It is characterized by having a length adjusting mechanism for connection.

[0008]

According to the first aspect of the present invention, the fastener for fastening the belt is attached to the wheelchair via the fixing portion, so that the fastener is arranged at a position near the wheelchair. It is possible to improve the belt mounting workability.

According to the second aspect of the present invention, when a strong load is applied to the belt, the load is applied to the vehicle via the wheelchair fixture, so that the load applied to the frame of the wheelchair from the fixing portion is reduced. Becomes possible.

According to the third aspect of the present invention, the belt pulled out from the winding device provided on the vehicle side is fastened to the fastening portion on the wheelchair side, so that the winding device is not provided on the wheelchair side, and the winding device is not provided on the wheelchair side. The function of the picking device can be used.

According to the fourth aspect of the present invention, the seat belt device can be used for wheelchairs of different sizes by adjusting the distance between the two mounting portions according to the width of the wheelchair.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment> Next, a first embodiment of the present invention will be described with reference to FIGS. The seatbelt device 30 for a wheelchair of the present embodiment is of an attachment type that can be attached to a wheelchair W. When an occupant sitting in the wheelchair W is put on a vehicle having a wheelchair installation space S, the wheelchair W is Be attached. As shown in FIG. 1, a pair of left and right belt fixing pins 12
One belt fixing pin 13 is attached to the rear side (only the left side is shown in FIG. 1). Each of the belt fixing pins 12 and 13 has a ring-shaped portion protruding upward, and includes a wheelchair fixing belt 5 to be described later.
0, 51 (corresponding to the "wheelchair fixture" of the present invention) can be attached at one end.

The wheelchair W is an ordinary manual wheelchair, and has a frame 21 made of a metal pipe material. A pair of vertical frames 22 are provided on the left and right side edges of the rear portion of the frame 21 along a substantially vertical direction, and a shaft of a wheel 23 is connected to a lower portion thereof. A pair of side frames 25 are provided along both sides of the seating portion 24 of the wheelchair W along the front-rear direction, and the rear ends thereof are connected to the vertical frame 22 at a substantially right angle to form a substantially T-shape. Has made. As will be described later, the T-shaped portion of the frame 21 has attachment portions 32R, 3
2L can be attached. In addition, the frame 21 has both sides of the seating portion 24 (side frame 25
Armrest 26).

The seat belt device 30 has a fixing portion 31 that can be fixed to the frame 21 of the wheelchair W. The fixing portion 31 includes a pair of left and right mounting portions 32R and 32L mounted on both sides of the frame 21, and an adjustment plate 41 connecting the pair of mounting portions 32R and 32L. The pair of mounting portions 32R and 32L are symmetrical to each other, and include a substantially L-shaped side wall portion 32A and a rear wall portion 32B. A pair of upper and lower positioning walls 3 extending in the front-rear direction is provided on the inner side surface in the width direction of the side wall portion 32A.
4U, 34L are erected, and both positioning walls 34U, 34U are provided.
The side frame 25 can be fitted with a certain margin between 34L. Further, a positioning screw 36 is screwed through the lower positioning wall 34L from below, and the distal end of the positioning screw 36 abuts against the side frame 25 and is tightened. The side frame 25 can be sandwiched and positioned therebetween. Furthermore, both positioning walls 3
The vertical frame 22 can be fitted with a certain margin between the rear ends of the 4U and 34L and the rear wall 32B. A positioning screw 37 is passed through the rear wall portion 32B and screwed from behind. The front end of the positioning screw 37 abuts against the vertical frame 22 and is fastened to the rear end of the positioning walls 34U and 34L. The vertical frame 22 can be sandwiched and positioned. Further, one end of a belt 43R (or 43L) described later is attached via a pin 38 at a position above the upper positioning wall 34U in the side wall portion 32A.

A connecting pin 39 is provided at the tip of the rear wall 32B.
Is screwed from the rear. The connecting pin 39 is formed of a screw portion 39A and an annular portion 39B (corresponding to the “fixing device connecting portion” of the present invention). Can be connected. In addition, the annular portion 39
B and the rear end of the rear wall portion 32B.
1 (the connecting pin 39 and the adjusting plate 4
1 constitutes the "length adjustment mechanism" of the present invention). The adjustment plate 41 has a substantially rectangular shape that is elongated in the left and right directions.
Is provided with an elongate slide groove 42 through which the light-emitting element is inserted. The width dimension of the slide groove 42 is smaller than the annular portion 39B of the connection pin 39. By tightening the connection pin 39, the adjustment plate 41 is fixed to the mounting portions 32R and 32L, and the connection pin 39 is loosened. And both mounting portions 32
The distance between the mounting portions 32R and 32L can be adjusted according to the width of the wheelchair W by sliding the R and 32L in the left-right direction with respect to the adjustment plate 41.

Now, the seat belt device 30
1 is provided with a pair of left and right belts 43R and 43L. Attachment bracket 4 is attached to one end of both belts 43R and 43L.
4 is connected, and is rotatably attached to the attachment portions 32R, 32L via the above-described pins 38.
A tongue 46 (corresponding to the "fastener" of the present invention) is provided at the tip of the right belt 43R, and a buckle 47 (the present invention) connectable to the tongue 46 is provided at the tip of one left belt 43L. "Corresponding to the" fastener ").

The wheelchair W is fixed on the floor 11 by attaching a pair of wheelchair fixing belts 50 on the front side and one wheelchair fixing belt 51 on the rear side. The rear wheelchair fixing belt 51 is formed by connecting one ends of three small belts 52, 53, 53 via a ring-shaped connecting member 54A. Are provided (e.g., carabiner). The small belt 52 is provided with an adjusting tool 56 for adjusting the length in the middle portion, and one end of the wheelchair fixing belt 51 is fixed on the floor 11 by connecting the connecting tool 54C to the belt fixing pin 13. You. In addition, small belt 5
3, 53 extend in a branched shape from the small belt 52 side,
The connecting tools 54B, 54B at the tips are connected to the annular portion 39B of the connecting pin 39. On the other hand, although not shown in detail, the front wheelchair fixing belt 50 includes, for example, connecting members at both ends of the belt, and one of the connecting members is connected to the belt fixing pin 12 of the floor 11 and the other is connected to the frame of the wheelchair W. 21.

The present embodiment has the above configuration, and its operation will be described below. The seat belt device 30 is attached to the wheelchair W before riding on the vehicle. To attach the seat belt device 30 to the wheelchair W, first, with the positioning screws 36 and 37 and the connecting pin 39 loosened, the left and right mounting portions 32R and 32L are fitted to the T-shaped portion of the frame 21, and the connecting pin The adjustment plate 41 is fixed by tightening 39. At this time, the distance between the two mounting portions 32R and 32L is adjusted according to the width of the wheelchair W, and
Is locked. Subsequently, the fixing screws 31 are tightened to position the fixing portion 31 in the front-rear direction or the vertical direction with respect to the frame 21 (22, 25).

When the wheelchair W to which the seat belt device 30 is attached is put on the vehicle as described above, after the wheelchair W is stopped in the installation space S, the helper attaches the pair of wheelchair fixing belts 50 to the front belt fixing pins 12 respectively. And the frame 21 of the wheelchair W. Subsequently, the connecting member 54C of the wheelchair fixing belt 51 is connected to the belt fixing pin 13 on the rear side, and the pair of connecting members 54B, 54B are connected to the connecting pins 39, respectively. At this time, the length is adjusted by the adjusting tool 56 so that the wheelchair fixing belts 50 and 51 are in a tension state. During the above operation, the occupant of the wheelchair W is driven by the pair of belts 43 located on the left and right sides of the seat 24.
R and 43L are wrapped around the front of the user, and the tongue 46 and the buckle 47 are connected. The belts 43R and 43L may be mounted in advance before getting on the vehicle.

As described above, according to the present embodiment, by attaching the seat belt device 30 to the wheelchair W via the fixing portion 31, the belts 43R and 43L and the tongues 46 and the buckles 47 for fastening them are formed. Wheelchair W
It is arranged at a position near the side. Therefore, the belt 43
R, 43L mounting workability is improved, and the belt 4
Since the 3R and 43L can be mounted by the wheelchair occupant himself, the burden on the attendant is reduced.

A connecting pin 3 for connecting a wheelchair fixing belt 51 for fixing the wheelchair W to the vehicle is attached to the fixing portion 31.
9, when a strong load is applied to the belts 43 </ b> R and 43 </ b> L, for example, when sudden braking is applied, the load is applied to the vehicle via the wheelchair fixing belt 51. The load applied to the frame 21 of the wheelchair W can be reduced, and the deformation and the like of the frame 21 can be prevented. In particular, in the present embodiment, the belt 43
Since the direction in which a tensile load is applied to R and 43L and the direction in which the wheelchair fixing belt 51 is stretched are substantially opposite directions,
Great effect.

Further, a length adjusting mechanism (adjusting plate 41)
By adjusting the distance between the two mounting portions 32R and 32L according to the width of the wheelchair W using the connecting pins 39), the seat belt device 30 can be used for wheelchairs W of different sizes. Also, each of the mounting portions 32R, 32
L, the frame 21 (22, 25) of the wheelchair W is tightened and fixed by the positioning screws 36, 37, so that the seat belt device 30 is
It can be used for wheelchairs with different diameters.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIG. The seatbelt device 60 of the present embodiment includes a three-point belt 61 provided on the vehicle side and a wheelchair-side seatbelt device 30 mounted on the wheelchair W side. Since the wheelchair-side seat belt device 30 has the same configuration as the seat belt device 30 of the first embodiment, the same reference numerals are given and the description is omitted. Further, the belt 43R and the tongue 46 may be removed from the seat belt device 30.

The three-point belt 61 extends upward from a winding device 63 installed on the floor 11, is hung on a suspending member 64 provided on an upper wall surface of the vehicle, and is turned downward. A tongue 65 is provided at the tip of the three-point belt 61 and can be connected to a buckle 66 erected on the floor 11. Further, a tongue 67 is provided at an intermediate portion of the three-point belt 61, and can be connected to the buckle 47 of the wheelchair-side seat belt device 30.

When the wheelchair W is put on the vehicle, the wheelchair-side seat belt device 30 is attached to the wheelchair W in the same procedure as in the first embodiment. Then, the wheelchair W is fixed to the wheelchair fixing belts 50 and 5 in the same procedure as in the first embodiment.
1 and is fixed to the installation space S. Three-point belt 6
In order to attach the buckle 1, the caretaker pulls out the three-point belt 61 from the winding device 63 and connects the tongue 65 to the buckle 66 between the spokes 23 </ b> A of the right wheel 23 (left side in the drawing) and the lower side of the armrest 26. I do. And
The other tongue 67 is connected to the wheelchair side seat belt device 30.
Buckle 47. The last work may be performed by a wheelchair occupant.

According to the present embodiment, the buckle 47 for fastening the three-point belt 61 is attached to the wheelchair W via the fixing portion 31, so that the buckle 47 is arranged at a position near the wheelchair W. Thereby, the three-point belt 6
The mounting workability of (1) is improved, and at least a part of the mounting work can be performed by a wheelchair occupant.

The three-point belt 61 is provided on the vehicle side. When a strong load is applied to the three-point belt, a part of the load is transferred to the vehicle such as the winding device 63, the suspension member 64, and the buckle 66. Since it is applied to the member on the side, the load applied to the frame 21 of the wheelchair W from the fixing portion 31 can be reduced. Furthermore, the three-point belt 61 pulled out from the winding device 63 provided on the vehicle side is fastened to the buckle 47 on the wheelchair W side, so that the function of the winding device 63 can be provided without providing the winding device on the wheelchair W side. Can be used.

The technical scope of the present invention is not limited by the above-described embodiment. For example, the followings are also included in the technical scope of the present invention. (1) The seat belt devices 30, 60 of the above embodiments.
Is a so-called two-point or three-point type, but a four-point type or another method may be used as a belt mounting method. (2) In the second embodiment, the winding device 63 is provided on the vehicle side. However, according to the present invention, the winding device may be provided on a seat belt device attached to a wheelchair.

(3) In the second embodiment, only one of the pair of tongues 65 and 67 of the three-point belt 61 is fastened to the wheelchair-side seat belt device 30. However, the invention is not limited to this. Buckles may be provided on both left and right sides of the device 30 so that both of the pair of tongues of the three-point belt can be fastened to the wheelchair respectively. (4) In each of the above embodiments, the wheelchair fixing belts 50 and 51 are used to fix the wheelchair W. However, according to the present invention, a wire or other fixing metal may be used as the wheelchair fixing tool.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a wheelchair is fixed to a vehicle in a first embodiment.

FIG. 2 is a perspective view showing a seat belt device.

FIG. 3 is a side sectional view showing a mounting portion.

FIG. 4 is a front view schematically showing a state in which a belt is worn on a wheelchair occupant in the second embodiment.

FIG. 5 is a front view showing a state in which a conventional seat belt is worn by a passenger in a wheelchair.

[Explanation of symbols]

 W: Wheelchair 21: Frame 30, 60: Seat belt device 31: Fixing portion 32R, 32L: Mounting portion 39: Connection pin (length adjustment mechanism) 39B: Annular portion (fixing device connection portion) 41: Adjustment plate (length) Adjustment mechanism) 46 ... tongue (fastening tool) 47 ... buckle (fastening tool) 51 ... wheelchair fixing belt (wheelchair fixing tool) 61 ... three-point belt (belt) 63 ... winding device

Claims (4)

[Claims] 1. A wheelchair seatbelt device for restraining an occupant of a wheelchair mounted on a vehicle, comprising: a fixing portion which can be fixed to a frame of the wheelchair; A seat belt device for a wheelchair, wherein at least one fastener for fastening a belt stretched over a front surface is connected. 2. The fixing part according to claim 1, wherein the fixing part is provided with a fixing part connecting part provided between the vehicle and the wheelchair fixing part for fixing a wheelchair. Seat belt device for wheelchairs. 3. The wheelchair seat belt device according to claim 1, wherein the belt portion is provided so as to be able to be pulled out from a winding device provided on a vehicle side. 4. The fixing portion includes a pair of mounting portions mounted at both ends in a width direction with respect to the frame of the wheelchair, and a length for connecting the pair of mounting portions so that a distance between the mounting portions can be adjusted. The wheelchair seat belt device according to any one of claims 1 to 3, further comprising an adjusting mechanism.