JP2005041263A - Vehicle boarding slope device for wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically stretch a slope plate and doubly fold the slope plate for storing in an erected posture. <P>SOLUTION: The vehicle boarding slope device for a wheelchair comprises a front plate 2 having the proximal end section 2a freely turnably attached to the lower end of a doorway G and connected with a driving means 16, and a rear plate 3 having the proximal end section 3a freely turnably attached to the distal end section 2b of the front plate 2. Then, one end 7a of a wire 7 is fixed to a cabin back side to be apart from a rotating shaft 6 at the proximal end section 2a of the front plate 2, and at the same time, the other end 7b is attached to the rear plate 3. The wire 7 is stretched on a pulley 8 which is arranged in a manner to protrude from the end surface of the end section 2b (3a) of the distal end section 2b of the front plate 2 or the proximal end section 3a of the rear plate 3. Thus, by simply tilting the front plate 2 by the driving means 16 from a state wherein the front plate 2 and the rear plate 3 being doubly folded are housed in the doorway G under a standing posture, the wire 7 becomes tense and pulls the rear plate 3 in a manner to be spread. Therefore, the front plate 2 and the rear plate 3 are automatically linearly stretched, and spans the gap between the doorway G and a road surface R. By the reverse procedures, the front plate 2 and the rear plate 3 are automatically housed in the doorway G by being doubly folded. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slope device for getting on and off a wheelchair of a vehicle.
[0002]
[Prior art]
Conventionally, as a slope device of this type, a front plate and a rear plate are connected to be able to bend and stretch, a base end portion of the front plate is rotatably connected to a lower end of the rear opening of the vehicle, and a handle provided at a front end portion of the rear plate Hold the handle in a folded manner in the rear opening of the vehicle and hold the handle to extend the front plate and the rear plate and land the tip of the rear plate on the road surface to form a slope. (See, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 7-24645 [0004]
[Problems to be solved by the invention]
However, the above-mentioned slope device has to store and extend the front plate and the rear plate manually, and places a burden on the caregiver.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slope device in which a slope plate is automatically extended and stowed in a folded state.
[0005]
[Means for Solving the Problems]
In view of the above problems, the present invention is provided with a slope plate that can be folded and stretched in a straight line and stretched between the entrance and exit and the road surface. A base end portion is rotatably attached to the lower end of the mouth, and includes a front plate connected to the driving means, and a rear plate having a base end portion rotatably attached to the front end portion of the front plate. Fix the one end of the wire away from the inner end of the rotating shaft at the end, and attach the other end to the rear plate so that it protrudes from the end surface of the front plate to the front end of the front plate or the base end of the rear plate By pulling the wire over the arranged pulley, the pulley pulls in the direction to expand the rear plate by pulling the rear plate away from the fixed end of the wire during the automatic tilting of the front plate by the driving means. Expand.
And the tilt of the front plate further increases, the front plate and the rear plate extend linearly, and the slope plate is automatically passed between the entrance and exit and the road surface by the tip of the rear plate landing on the road surface, By reversing the procedure, the slope plate is automatically stowed and stored in a folding manner at the entrance / exit to solve the above problem.
In addition, the wire is provided with tension increasing means for winding one end side of the wire for a predetermined length while the front plate is tilted, so that the rear plate can be expanded widely with respect to the front plate when the front plate is tilted. By supporting the other end in a telescopic manner, when the slope plate extends and the tip of the rear plate lands on the road surface, even if the landing point is lower than the assumed position, the other end of the wire is By extending the wire, it is possible to prevent the rear plate from stopping in a state where the tip of the rear plate is lifted from the landing point, and the drive means has a swinging motion of the rear plate in the above-mentioned retracted state of the slope plate. By providing an automatic lock means that releases the inhibition when the front plate starts swinging, the rear plate does not swing freely even if the vehicle runs in the above-described retracted state of the slope plate where the wire relaxes. Like.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
The slope device shown in FIGS. 1 to 6 is opened and closed by a back door (not shown), and a vehicle C having a wheelchair riding space on the rear side in the vehicle has a two-way entrance G having a back door. A slope plate 1 is provided which is stowed and stood up in a folded manner and stretched in a straight line so as to be stretched between the entrance / exit G and the road surface R.
The vehicle C is equipped with a knee down device (not shown) that lowers the vehicle height at the rear of the vehicle C by contracting the damper of the rear wheel suspension device. Although each of the states in which the slope plate 1 is extended and stored in a posture inclined downward from the posture to the outside of the entrance / exit G is shown, the slope device can be installed regardless of the vehicle C equipped with the knee down device.
Moreover, even if it exists in a back door, you may equip not only with a manual but the automatic opening / closing apparatus (not shown) which opens and closes automatically by remote operation.
[0007]
The slope plate 1 comprises a rectangular front plate 2 and a rear plate 3 made of metal and having the same width, and the front plate 2 is capable of pivoting a base end portion 2a at a lower end of an entrance G that is a rear end of a vehicle floor F. The rear plate 3 is attached to the front end portion 2b of the front plate 2 so that the base end portion 3a is freely rotatable, and the front plate 2 and the rear plate 3 are respectively provided with side walls 4, 4a, 5, 5a standing up and down. ing.
Further, on one side wall 4 side of the front plate 2, one end 7 a of the wire 7 is fixed at a position farther away from the rotary shaft 6 of the base end portion 2 a of the front plate 2 and the other end 7 b of the rear plate 3. It is attached at a proper position on one side wall 5.
A wire is connected to a pulley 8 disposed on the front end 2b of the front plate 2 or the rear end 3a of the rear plate 3 (in the illustrated example, the front end 2b of one side wall 4 of the front plate 2) so as to protrude from the end surface of the end 2b. 7 is crossed.
The wire 7 is provided with a tension increasing means 9 in which one end 7a side of the wire 7 is wound by a predetermined length while the front plate 2 is tilted. The tension increasing means 9 is formed in a semicircular arc shape protruding upward. A block piece in which a wire guide groove 9a is formed, and one end 7a of the wire 7 is fixed to the start end of the wire guide groove 9a farthest from the rotating shaft 6 in the block piece 9.
The other end 7 b of the wire 7 is inserted through the fixing plate 10 projecting at right angles to the one side wall 5 of the rear plate 3, on the distal end portion 3 b side of the rear plate 3 from the fixing plate 10, and on the fixing plate 10. The movable plate 11 is fixed to a movable plate 11 facing the movable plate 11 so as to be able to advance and retreat, and a coil spring 12 is interposed between the movable plate 11 and the fixed plate 10 so that the movable plate 11 can be extended and retracted.
A guide pulley 13 is arranged on the loose side of the wire 7 at a substantially intermediate position of the one side wall 4 of the front plate 2 so that the wire 7 always follows the one side walls 4 and 5.
In addition, a substantially U-shaped projecting piece 14 is provided at an appropriate position on one side wall 4 of the front plate 2, and corresponds to the projecting piece 14 in an upright retracted posture in which the front plate 2 and the rear plate 3 are bent in two. A stopper 15 for stopping the projecting piece 14 is disposed in the vehicle.
[0008]
The front plate 2 in the slope plate 1 is linked to driving means 16 that swings the front plate 2.
The driving means 16 is fixed to one side of the vehicle in the vicinity of the entrance / exit G. The electric motor 18 is fixed to the frame 17 and can be rotated forward and backward. The driving means 16 is rotatably attached to the frame 17. A large-diameter driven gear 19 that meshes with a drive gear 18 a that is attached to the shaft, a crank 20 that is fixed so that the tip of the driven gear 19 protrudes in the diameter direction of the driven gear 19, and a tip of the crank 20. It consists of articulated rods 21 that are pivotally connected.
The distal end of the connecting rod 21 is pivotally connected to an appropriate position (in the illustrated example, coaxial with the guide pulley 13) on one side wall 4 of the front plate 2, and the connecting rod 21 is connected by a crank 20 that is rotated by the operation of the electric motor 18. The front plate 2 is swung freely up and down.
Further, the driving means 16 is provided with an automatic locking means 22 that suppresses the swinging operation of the rear plate 3 in the upright retracted state in which the slope plate 1 is folded in two and releases the suppression when the front plate 2 starts swinging. ing.
The automatic locking means 22 includes a hook 23 formed at the tip of the connecting rod 21 that protrudes from the pivotally connected portion with the front plate 2, and the rear plate so as to correspond to the hook 23 in the retracted state of the slope plate 1. 3 on one side wall 5 and a pin 24 projecting at an appropriate position. The hook 23 is locked to the pin 24 in a standing state of the front plate 2 swinging by the connecting rod 21, and the hook 23 is pin 24 before starting swinging. It is made to leave more.
The driving means 16, the knee down device and the automatic back door opening / closing device are configured to be remotely operated by a remote controller (not shown).
[0009]
Next, the operation of the slope device according to the present invention will be described.
When the slope plate 1 is in the retracted state, the front plate 2 and the rear plate 3 are held at the entrance / exit G in a standing posture bent in half.
In this state, the posture of the front plate 2 is firmly held by being connected to the connecting rod 21 of the driving means 16 and the projecting piece 14 provided on the front plate 2 being stopped by the stopper 15. Has been.
Further, although the wire 7 is loosened, the hook 23 provided at the tip of the connecting rod 21 is locked to the pin 24 of the rear plate 3, so that the above posture is also firmly supported and the vehicle C travels. The back plate 3 is prevented from shaking due to the above.
Here, after the vehicle floor F is inclined downwardly from the entrance G by the knee down device and the back door is manually or automatically opened, the electric motor 18 is operated to rotate the crank 20 clockwise. By this rotation, the connecting rod 21 operates so as to protrude downward from the entrance G.
At the initial start of the connecting rod 21, the front plate 2 pivotally attached to the connecting rod 21 is tilted outward of the vehicle C while the hook 23 at the tip of the connecting rod 21 is detached from the pin 24.
When the degree of tilting of the front plate 2 increases, the end 7a of the wire 7 is fixed at a position shifted from the rotary shaft 6 of the base end portion 2a of the front plate 2 to the interior of the vehicle, so that the wire 7 is tensioned. Then, the length from the one end 7a to the pulley 8 becomes long, and the one end 7a side gradually winds around the wire guide groove 9 as the tilt of the front plate 2 increases. The length is further increased. Therefore, the length of the wire 7 from the pulley 8 to the other end 7b of the wire 7 is shortened, and a force for pulling the rear plate 3 to which the other end 7b is attached works.
This pulling force acts in the expanding direction of the rear plate 3 because the pulley 8 is located above the base end portion 3a of the rear plate 3, so that the rear plate 3 is automatically expanded by the tilt of the front plate 2. When opened, the slope plate 1 is automatically extended in a U-shape.
Then, when the tilt of the front plate 2 further proceeds, the front plate 2 and the rear plate 3 extend linearly, and the electric motor 18 is stopped when the front end portion 3b of the rear plate 3 lands on the road surface R. The slope plate 1 is bridged from the entrance / exit G to the road surface R.
Further, when the slope plate 1 extends and the tip 3b of the rear plate 3 lands on the road surface R, if the landing point is lower than the assumed position, for example, even if it is a depression depressed from the road surface R, the wire 7 Since the moving plate 11 that fixes the other end 7b of the moving plate 11 moves toward the fixed plate 10 against the elastic force of the coil spring 12 to extend the wire 7, the slope plate 1 can be tilted to a lower position, The tip 3b can be landed.
In storing the slope plate 1, the front plate 2 and the rear plate 3 are folded in half at the entrance / exit G through the reverse procedure by rotating the electric motor 18 in the reverse direction. Stored upright.
[0010]
【The invention's effect】
In short, according to the present invention, the base end 2a is rotatably attached to the lower end of the entrance G and the front plate 2 connected to the driving means 16 and the base end 3a is rotatable to the front end 2b of the front plate 2. The rear plate 3 is attached to the rear plate 3, and is separated from the rotary shaft 6 of the base end portion 2 a of the front plate 2 to the back of the vehicle interior to fix one end 7 a of the wire 7, and the other end 7 b is attached to the rear plate 3. Since the wire 7 is stretched over the pulley 8 arranged so as to protrude from the end surface of the end portion 2b (3a) of the front end portion 2b of the plate 2 or the base end portion 3a of the rear plate 3, the front plate is bent in half. By simply tilting the front plate 2 with the driving means 16 from the state in which the 2 and the rear plate 3 are stood up in the standing position, the wire 7 is tensioned so that the rear plate 3 is expanded. Therefore, the front plate 2 and the rear plate 3 are automatically extended so that the straight line extends between the entrance G and the road surface R. Can pass over the flop plate 1 can automatically store the slope plate 1 to entrance G is folded in two through the reverse procedure.
Therefore, according to the present invention, the slope plate 1 has a simple structure in which the front plate 2 and the rear plate 3 are connected by the one drive means 15 for swinging the front plate 2 and the wire 7 and the pulley 8 as described above. The extension and storage of the rear plate 3 can be automated, and the operation of the rear plate 3 is regulated as described above by the swing of the front plate 2 by the wire 7 or the like, so that it is stable and safe without swinging like a pendulum. .
[0011]
Since the wire 7 is provided with the tension increasing means 9 in which the one end 7a side of the wire 7 is wound for a predetermined length while the front plate is tilted, the wire 7 is wound around the tension increasing means 9 when the front plate 2 is tilted. 7 can increase the pulling action of the rear plate 3 in the expanding direction, and the rear plate 3 can be automatically expanded better, and the one end 7a of the wire 7 is connected to the rotating shaft 6 of the base end portion 2a of the front plate 2. Therefore, the wire 7 is tensioned without slackening even in a state where the front plate 2 and the rear plate 3 are linearly extended, and the appearance is good.
[0012]
Since the other end 7b of the wire 7 is stretchably supported, even if the front plate 2 and the rear plate 3 extend linearly, even if the wire 7 is in a tension state, the other end 7b side can be extended, and the extension is a slope. Since the plate 1 can be tilted to a lower position, for example, when the other end 7b of the wire 7 is fixed to the rear plate 3, that is, the wire 7 is in a tensioned state when the slope plate 1 extends linearly. The slope plate 1 cannot be lowered any more, and it can be solved that the tip portion 3b cannot land on the road surface R.
Therefore, when the slope plate 1 extends and the tip 3b of the rear plate 3 lands on the road surface R, even if the landing point is lower than the assumed position, for example, even if it is a depression depressed from the road surface R, the wire 7 The front end 3b of the slope plate 1 can be landed without stopping in a state where the front end 3b of the rear plate 3 is lifted at a landing point lower than the road surface R due to tension.
[0013]
A hook 23 formed at the front end of a connecting rod 21 that is provided on the driving means 16 and is pivotally connected so as to support the front plate 2 in a swinging manner, and is locked by the hook 23 when the slope plate 1 is stood and stowed. Thus, even if the wire 7 is loosened in the upright retracted state in which the slope plate 1 is folded in half by the automatic locking means 22 including the pin 24 provided on the rear plate 3, the rear portion is caused by vibration during traveling of the vehicle C. It is possible to prevent the plate 3 from swinging, and at the start of the swing of the front plate 2, the suppression is canceled and the front plate 2 and the rear plate 3 can be extended without any trouble. The effect is great.
[Brief description of the drawings]
FIG. 1 is a side view of a slope device in an extended state of a slope plate.
2 is a partially omitted plan view of FIG. 1. FIG.
FIG. 3 is a side view of the slope plate in the extended state as viewed from the side where the wire is attached.
4 is an enlarged view showing a state in which the wire is wound by the tension increasing means in FIG. 1. FIG.
FIG. 5 is a side view of the slope device in a retracted state of the slope plate.
FIG. 6 is a side view of the slope device when the automatic locking means is released.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Slope board 2 Front board 2a Base end part 2b Front end part 3 Back board 3a Base end part 6 Rotating shaft 7 Wire 7a One end 7b Other end 8 Pulley 9 Tension | tensile_strength increasing means 16 Drive means 21 Connecting rod 22 Automatic locking means 23 Hook 24 Pin G boarding gate R road surface

Claims (5)

In addition to being stowed and folded in two at the entrance / exit, a slope plate that can be stretched and stretched in a straight line and spanned between the entrance / exit and the road surface is provided. It consists of a front plate connected to the drive means and a rear plate with a base end pivotally attached to the front end of the front plate, and is located at the back of the vehicle from the rotating shaft at the base end of the front plate. The wire is separated and fixed at one end, the other end is attached to the rear plate, and the wire is stretched over a pulley arranged so as to protrude from the end surface of the front plate at the front end or the rear plate. A slope device for getting on and off a wheelchair of a vehicle. The slope device for getting on and off a wheelchair of a vehicle according to claim 1, wherein the wire is provided with tension increasing means for winding one end of the wire to a predetermined length while the front plate is tilted. The slope device for getting on and off a wheelchair according to claim 1 or 2, wherein the other end of the wire is supported so as to be stretchable. The drive means is provided with an automatic locking means for suppressing the swinging operation of the rear plate in the above-mentioned retracted state of the slope plate and releasing the suppression when the front plate starts swinging. The slope device for getting on and off a wheelchair according to 2 or 3. The automatic locking means is provided in the driving means so that the front plate is hooked and connected to the front end of the articulated rod so as to support the front plate, and the slope plate is locked with the hook in the retracted state. The slope device for getting on and off a wheelchair according to claim 4, comprising a pin provided on a rear plate.

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