JPH09299407A - Self-traveling apparatus for wheel chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To load a wheel chair on or unload it from and fix it on a vehicle easily by a person on the wheel chair and further enable operation of the wheel chair by himself as riding thereon. SOLUTION: A freely openable or closable slop/door 9 is formed on the rear of a self-traveling vehicle 1. A stopper 17 which is brought into contact with the front of a frame 11 of a wheel chair 7 to regulate forward, upward and sideway motions of the frame 11 when a wheel chair 7 rides on at an operable position in a chamber 6 of the vehicle 1 is formed in front of the chamber 6 of the vehicle 1. A clamp mechanism 19 which has a pressing member 18 to press right and left main running wheels 15 of the wheel chair 7 to the side of the stopper 17 and downward is formed in the chamber 6 of the vehicle 1. Thus, the loading of the wheel chair 7 on or unloading thereof from or fixing thereof on the vehicle 1 is easily accomplished by a person riding on the wheel chair 7. This also enhances the certainty in the fixing of the wheel chair 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled device for a wheelchair that allows a vehicle to travel while sitting on a wheelchair.

[0002]

2. Description of the Related Art Recently, a vehicle has been developed in which a person who needs a wheelchair is transported together with the wheelchair. The first conventional example is to open the slope-combined door provided on the back of the vehicle so that it can be opened and closed and to bring it down. Then, the person who drives the wheelchair can climb the slope-combined door to enter the vehicle and move the front of the wheelchair to the vehicle. The wheelchair is used as a driver's seat by abutting it against a part of the vehicle and fixing the wheelchair with the seat belt together with the human body.

In the second conventional example, a slope-combining door provided on the rear surface of the vehicle so as to be freely opened and closed is opened and brought down, and an attendant pushes a wheelchair to store the slope-combining door in the rear space of the vehicle. The one-touch lock mechanism provided on the floor is used by the caregiver to operate the foot to fix the wheelchair. In this case, the driver's seat for actually driving the vehicle is separately provided at the front part of the vehicle.

[0004]

In the first conventional example, since the wheelchair is fixed together with the human body by the seatbelt, if the seatbelt is tightened too much, the degree of freedom of the body is restricted, and the body has a degree of freedom. If the seatbelt is tightened so that the wheelchair can be obtained, the wheelchair will not be sufficiently fixed, and the wheelchair may move just by suddenly starting and stopping, and it is difficult to withstand a large impact such as a collision.

In the second conventional example, the person in the wheelchair cannot drive the vehicle by himself, and the operation of an attendant is required even when the wheelchair gets on and off the vehicle and is fixed.
There is no freedom for persons with disabilities.

[0006]

According to the present invention, there is provided a self-propelled vehicle having wheels, an engine, a steering device, etc., the opening is closed in the closed state, and the wheelchair is allowed to run on the inner surface in the open state. A dual-purpose door is rotatably attached to both sides of a lower portion of an opening formed on the back surface of the vehicle, and when the wheelchair is placed in a position where the vehicle can be operated in front of the interior of the vehicle, A stopper is provided fixedly for abutting against the front surface, the upper surface, and the side surface of the front portion of the frame of the wheelchair to restrict the forward, upward, and lateral movement of the frame, and the main running wheels of the wheelchair are provided inside the vehicle. There is provided a clamp mechanism having a pressing member for restricting the movement of the vehicle in the left and right directions to press the main traveling wheel toward the stopper side and downward.

Therefore, when the combined use door of the slope is opened, the wheelchair can be run on the inner surface of the combined use door of the slope to get on and off the vehicle. When a wheelchair is placed inside the vehicle, the front part of the frame of the wheelchair abuts against the stopper, and the front part of the frame is restricted from moving forward, upward, and laterally. When the clamp mechanism is operated, movement of the main traveling wheels in the left-right direction is restricted by the pressing member, and the main traveling wheels are pressed and fixed to the stopper side and downward.

[0008]

An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, 1 is a vehicle. At the bottom of the vehicle 1, front wheels 2 and rear wheels 3 are respectively provided as wheels.
Are rotatably provided. Further, the vehicle 1 includes an engine (not shown) that drives at least one of the front wheels 2 and the rear wheels 3, and a steering device 4 that changes the direction of the front wheels 2.
Etc. are provided. On a dashboard (not shown) arranged in front of the steering wheel 5 of the steering device 4, instruments and an engine switch operated by the right hand are arranged. The steering wheel 5 has a knob (not shown) operated by the right hand.
On the left side of the, the mission lever (not shown) that switches the mission to the forward or reverse side, and the accelerator / brake control lever (not shown) that accelerates or brakes
And are arranged. In the accelerator / brake control lever, a lighting switch, a turn signal switch, a wiper switch, and the like are arranged in a range that can be operated by a finger of the hand holding the lever.

Further, as shown in FIG. 1 and FIG.
In this example, the room 6 is set to a size in which one wheelchair 7 can be stored with a margin. Further, on the back surface of the vehicle 1, an opening 8 having a size that opens substantially the entire back surface is formed, and slope-combined doors 9 are rotatably supported on both lower sides of the opening 8. A running surface 10 for running the wheelchair 7 is formed on the inner surface of the slope / combined door 9. Although not shown, the vehicle 1 has a door 9 that also serves as a slope.
Although an opening / closing mechanism for opening / closing is provided, a switch for opening / closing the opening / closing mechanism is provided outside the vehicle 1 and inside the room 6.

As shown in FIGS. 3 and 4, the wheelchair 7 is
The frame 11 of is formed by joining a plurality of metal pipes by welding or bolts.
Casters 13 having swivel wheels 12 are rotatably supported on both sides of the front part of the frame with a vertical axis, and main running wheels 15 that rotate integrally with a rotary shaft 14 are provided at the rear part of the frame 11. At both ends of the rotary shaft 14, the main traveling wheels 1
A ring 16 having a diameter slightly smaller than 5 is fixed.
The wheelchair 7 travels when a person riding the wheelchair rotates the ring 16 by hand to drive the main traveling wheels 15.

As shown in FIG. 1, when the vehicle 1 is brought into contact with the front portion of the frame 11 of the wheelchair 7, the frame 11 is moved forward, upward, and laterally. A stopper 17 for restricting is fixedly provided. Further, a clamp mechanism 19 having a pressing member 18 for pressing the left and right main traveling wheels 15 of the wheelchair 7 toward the stopper 17 and downward (toward the floor 6a of the room 6) is provided.

The stoppers 17 are formed in front of the pipes 20 arranged on both sides of the frame 11 (on the left side in FIG. 3) and pressed in the vicinity of a bent portion 21 bent downward. , The inner surface thereof includes a front surface receiver 17a that receives the front surface of the bent portion of the bent portion 21, a top surface receiver 17b that receives the upper outer circumference (upper surface) of the bent portion 21, and the left and right of the bent portion 21. It has a side surface support 17c (see FIG. 5) for receiving a side surface, and is formed in an inverted U-shape in cross section. These stoppers 17 are formed of a metal having a high rigidity on the outer side, but are provided with a cushioning member capable of elastically bending on the inner surface. Therefore, the left and right bent portions 21 of the frame 11 are connected to the respective portions 17a, 17b, 1 of the stopper 17.
In the state of being received by 7c, the forward movement of the front portion of the frame 11 is restricted by the front surface support 17a, the upward movement is restricted by the upper surface support 17b, and the left and right movements are restricted by the side surface support 17c. .

As described above, the stopper 17 serves as the frame 11
Since the left and right sides are paired to regulate the movement in the left-right direction, the side surface receiver 17c that abuts the side surface of the bent portion 21 contacts at least only the outer side surface of the bent portion 21, as shown in FIG. It suffices to provide the side bearings 17c that come into contact with one side, or, as shown in FIG. 7, provide the side bearings 17c that come into contact with only the inner side surfaces of the bent portion 21 on one side. In addition, the stopper 17 includes a front surface receiver 17a and an upper surface receiver 17b.
The present invention is not limited to the one that includes all of the above and the side receivers 17c, and may be divided into a plurality of stoppers that include one or two of the front receiver 17a, the top receiver 17b, and the side receiver 17c.

As shown in FIG. 4, the pressing member 18 is
The main traveling wheels 15 are arranged so as to be pressed at a position slightly away from the top dead center of the main traveling wheels 15 in a direction away from the stopper 17, and the main traveling wheels 15 are provided on the inner surface thereof on the stopper 17 side and It has a pressing surface 18a that presses downward (toward the floor surface 6a of the room 6) and a restricting surface 18b that abuts on both side surfaces of the main traveling wheel 15, and has a reverse U-shaped cross section. These pressing members 18 are formed of a metal having a high rigidity on the outer side, but have a cushioning member capable of elastically bending on the inner surface. Therefore, in the state where the left and right main traveling wheels 15 are pressed by the pressing member 18, the backward movement and the upward movement of the main traveling wheels 15 are fixed.

As described above, since the pressing members 18 form a pair on the left and right in order to fix the left and right main traveling wheels 15 in the left-right direction, the restricting surface 18 that abuts the side surface of the main traveling wheel 15.
As shown in FIG. 8, the b may have at least one regulating surface 18b that abuts only on the inside (or outside) of the main traveling wheel 15 on one side.

The pressing member 18 is brought into contact with and separated from the main traveling wheel 15 by the clamp mechanism 19. That is, as shown in FIGS. 4 and 9, the clamp mechanism 19 has a link 24 rotatably supported at one end by a pin 23 on a bracket 22 and a pin 25 at the other end of the link 24. Supported clamp handle 26
And a clamp lever 28 rotatably supported on the bracket 22 by a pin 27. The clamp lever 28 and the clamp handle 26 are rotatably connected by a pin 29. The pressing member 18 is screwed to the lower end of a screw rod 30 screwed to the tip of the clamp lever 28. This screw rod 30 has a clamp lever 2
Two lock nuts 31 are screwed together with 8 in between. Therefore, by loosening these lock nuts 31 and rotating the screw rod 30 in an arbitrary direction, the interval between the clamp lever 28 and the pressing member 18 is adjusted, and the lock nut 31 is tightened on both upper and lower surfaces of the clamp lever 28. The screw rod 30 is fixed. The support base 32 for fixing the bracket 22 so that the person riding the wheelchair 7 can operate the clamp mechanism 19 as shown in FIG. It is fixedly installed near both sides of the upper part of.

Here, referring to FIG. 9, the clamp mechanism 19
The operation of will be described. The state shown in FIG. 9A is a state in which the main traveling wheels 15 are fixed. In this state, the center of the pin 25 is located below the straight line connecting the centers of the pins 23 and 29, and the clamp lever 28 presses the pressing member 18 downward via the screw rod 30. Therefore, the main traveling wheel 1
5 is pressed and fixed by the pressing member 18. At this time, the clamp lever 28 moves around the pin 27 as shown in FIG.
Receives a reaction force that rotates clockwise at
Since the center of the pin 25 is located below the straight line connecting the centers of 3, 29, the upward rotation of the clamp lever 28 is restricted by the link 24. Therefore, the clamp lever 28 is maintained in a state of pressing the pressing member 18 downward.

When the clamp handle 26 is grasped and pulled upward, as shown in FIG. 9B, the clamp handle 26 rotates the link 24 clockwise around the pin 23 and rotates the link 24 clockwise around the pin 29. Rotate counterclockwise. The displacement of the link 24 at this time causes the position of the pin 29 to be displaced clockwise about the pin 27, so that the clamp lever 28 rotates clockwise around the pin 27 together with the pressing member 18, and the main traveling wheel 15 is rotated. release. When the clamp handle 26 is pressed down, the clamp lever 28 presses the pressing member 18 by the operation reverse to the operation described above.

The description with reference to FIG. 9 is for the clamp mechanism 19 on the right side of the vehicle 1 when viewed from the rear. The arrangement and operation of the left side clamp mechanism 19 are symmetrical with the arrangement and operation of the right side clamp mechanism 19.

The mounting height of the stopper 17 and the clamp mechanism 19 is adjusted so that the turning wheel 12 and the main traveling wheel 15 are pressed against the floor surface 6a of the interior 6 of the vehicle 1. Further, although not shown, rails that define the traveling path of the wheelchair 7 are provided on the traveling surface 10 of the slope / door 9 and the floor surface 6a of the interior 6 of the vehicle 1.

In such a structure, when a person in the wheelchair 7 gets into the vehicle 1, the slope / door 9 is opened by a switching operation from the outside. In this state, as shown by a phantom line in FIG. 1, the slope / door 9 is inclined with a gentle inclination angle, and the free end is in contact with the ground. As a result, a person in the wheelchair 7 can get in the room 6 of the vehicle 1 by turning the ring 16 by hand. When the wheelchair 7 is driven to a position where it can be operated, the bent portion 21 of the frame 11 comes into contact with the stopper 17, so that, as described above, the front portion of the frame 11 moves forward, moves upward, and moves to the left and right. Movement is regulated.

Next, when the person on the wheelchair 7 pushes down the left and right clamp handles 26, the clamp lever 28 is lowered as described above, and the pressing member 18 pressed by the clamp lever 28 pushes the main traveling wheel 15. Due to the pressing, the upward movement of the main traveling wheel 15, the movement in both left and right directions, and the backward movement are fixed. The position where the wheelchair 7 is fixed is a position where all operations necessary for traveling of the vehicle 1 are possible. Then, by closing the slope / combined door 9 by a switching operation in the room, it becomes possible to shift to a traveling operation of the vehicle 1.

When getting off from the vehicle, the rear side is confirmed and the door 9 also serving as a slope is opened by a switching operation in the room. Then, by pulling up the clamp handle 26, the clamp lever 28 is retracted above the main traveling wheel 15 together with the pressing member 18, and the ring 16 is rotated by hand to travel on the traveling surface 10 while riding on the wheelchair 7, and outside the vehicle. You can get off at.

As described above, the person riding the wheelchair 7 can easily get on and off the vehicle 1 and fix the wheelchair 7 in the vehicle 1 without the help of an attendant. Further, when the wheelchair 7 is put into the vehicle 1, the stopper 17 causes the front of the front portion of the wheelchair 7 to move forward,
The movement in the upper and left and right directions can be securely fixed,
Since the pressing member 18 can securely fix the movement of the main traveling wheel 15 in the upward, backward, and left and right directions, safety can be improved.

[0025]

According to the present invention, an openable / closable door is provided on the back surface of a vehicle that is self-propelled, and when the wheelchair is placed in front of the interior of the vehicle at a position where the vehicle can be operated and operated. , The front of the frame by contacting the front surface, the upper surface, and the side surfaces of the front portion of the frame of this wheelchair,
A stopper for restricting upward and lateral movement is fixedly provided, and the main traveling wheel is provided with a regulating surface for regulating movement of the main traveling wheel of the wheelchair in both left and right directions inside the vehicle. Since the clamp mechanism having the pressing member that presses the stopper side and the downward direction is provided, the person who is in the wheelchair can get on and off the wheelchair by opening the door that also serves as the slope. Also, when the wheelchair is placed in a position where the vehicle can be operated and operated, the front part of the frame of the wheelchair can be brought into contact with the stopper to move the front part of the frame forward, upward, and laterally. It can be securely fixed, and by operating the clamp mechanism by the person in the wheelchair himself, the movement of the main traveling wheel in the left and right direction can be restricted by the pressing member, and the main traveling wheel can be pressed to the stopper side and downward. it can.
As a result, the movement of the wheelchair forward, backward, upward, and laterally can be reliably and easily fixed.

[Brief description of drawings]

FIG. 1 shows one embodiment of the present invention, and is a side view of a partially cut-away vehicle.

FIG. 2 is a front view of a vehicle with a part cut away.

FIG. 3 is a side view showing a state in which the wheelchair is fixed by a stopper and a pressing member.

FIG. 4 is a rear view showing a state in which the wheelchair is fixed by a pressing member.

FIG. 5 is a rear view of the stopper.

FIG. 6 is a rear view showing another example of the stopper.

FIG. 7 is a rear view showing another example of the stopper.

FIG. 8 is a rear view showing another example of the pressing member.

FIG. 9 is a side view showing the operation of the clamp mechanism.

[Explanation of symbols]

 1 Vehicle 2, 3 Wheels 4 Steering Device 6 Indoor 7 Wheelchair 8 Opening 9 Slope / Door 17 Stopper 18 Pressing Member 18b Restricting Surface 19 Clamping Mechanism

Claims (1)

[Claims] 1. A self-propelled vehicle having wheels, an engine, a steering device, and the like, and a rotatably supported on both sides of a lower portion of an opening formed on the rear surface of the vehicle and closing the opening in a closed state. However, in the open state, the door also serves as a slope that allows the wheelchair to travel inside, and a frame of the wheelchair that is fixedly provided in front of the interior of the vehicle when the wheelchair is placed in a position where the vehicle can be operated and operated. A stopper that abuts against the front, top, and side surfaces of the front part of the vehicle to regulate forward, upward, and lateral movements of the frame; and a stopper that is displaceably supported in the interior of the vehicle and that supports the main running wheels of the wheelchair. A clamping mechanism having a pressing member for pressing the main traveling wheel toward the stopper side and downward, which has a restricting surface for restricting movement in both directions, and a wheelchair user equipment. Running device.