JP2000157579A - Elevating/lowering device for wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevating/descending device for a wheelchair capable of elevating and descending the wheelchair both indoors and outdoors by providing mobility in the device itself and preventing a forward tilting feeling at the time of elevating and descending. SOLUTION: This device is provided with a base frame 10 having wheels, an elevating/descending guide frame 20 erected on the base frame 10, an elevating/descending body 30 elevatable and descendable along the elevating/ descending guide frame 20, a wheelchair supporting body 40 projecting in a front direction, disposed on the elevating/descending body 30 and capable of supporting the lower part of the wheelchair 70, a driving means 60 for driving the elevating/descending body 30 to be elevated and descended and a front raising means capable of tilting the front part side of the wheelchair 70 upwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair elevating device used when transferring to an automobile while being in a wheelchair.

[0002]

2. Description of the Related Art Conventionally, when traveling between indoors and outdoors while riding in a wheelchair, when transferring to a car, the ground and the car floor are usually placed at the rear of a car having a box carrier, a so-called one-box car. A method has been adopted in which an elevating device provided with a mounting table which moves up and down the space is mounted, a wheelchair is mounted on the mounting table, and the occupant is transferred to the automobile together with the wheelchair.

[0003]

However, in the above-described conventional lifting device for a wheelchair, it is necessary to equip the vehicle with a lifting device having a complicated structure, and the lifting device is a fixture exclusive to the vehicle.

For this reason, when a wheelchair is raised or lowered in another place, for example, when going from indoor to outdoor, an elevator for a car cannot be used in a staircase at the entrance of a Japanese house with a large difference in elevation, and another elevator is used. Or rely on the helper's effort.

[0005] Further, there is a problem that, when the user lifts up to a high position while sitting in a wheelchair by the elevating device, the wheelchair occupant tends to lean forward and easily instability.

The present invention has been made in view of the above, and it is an object of the present invention to provide a device in which a wheelchair can be moved up and down both indoors and outdoors with mobility, and a sense of squeezing before rising. It is an object of the present invention to provide a wheelchair elevating device capable of preventing the occurrence of a wheelchair.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a wheelchair lifting / lowering apparatus according to a first invention has a base frame having wheels and an upright standing on the base frame. Lift guide frame, a lift that can move up and down along the lift guide frame, a wheelchair support that projects forward from the lift and that can support the lower part of the wheelchair, and drives the lift up and down A wheelchair lifting / lowering device, comprising: a driving means for driving the wheelchair; and a front ascending means capable of inclining the front side of the wheelchair supported by the wheelchair support upward.

According to a second aspect of the present invention, there is provided a wheelchair elevating device comprising a base frame having a pair of front and rear wheels, an elevating guide frame extending vertically and standing upright on the base frame, An elevating body having a roller and a lower roller, which can be guided up and down by the elevating guide frame, and a pair of left and right wheelchair supports which are provided on the elevating body so as to protrude forward and can support a lower part of a wheelchair frame; A driving unit provided to be able to drive the elevating body up and down, and a forward ascending means capable of inclining a front side of a wheelchair supported by the wheelchair support member upward with the elevating body rising. A lifting and lowering device for a wheelchair, wherein the forward raising means has a forwardly inclined portion inclined forward at a base end side, and a backwardly inclined portion extending obliquely rearward and upward from an upper end of the forwardly inclined portion. When, An elevating body in which the upper roller and the lower roller can take a rearwardly inclined portion position and a forwardly inclined portion position of the elevating guide frame at a lower position, respectively, and the upper roller and the lower roller are at the lowest position While the wheelchair support is held substantially horizontally at substantially the same level as the base frame at the rearwardly inclined portion position and the forwardly inclined portion position of the elevating guide frame, respectively, with the ascent of the elevating body, The lifting device for a wheelchair, wherein the upper roller and the lower roller are respectively located at rearwardly inclined positions of the lifting guide frame, and the front end side of the wheelchair support is formed so as to be tiltable upward.

According to a third aspect of the present invention, there is provided a wheelchair elevating device, comprising: a base frame having a pair of front and rear wheels; an elevating guide frame extending vertically and standing upright on the base frame; An elevating body having a roller and a lower roller, which can be guided up and down by the elevating guide frame, and a pair of left and right wheelchair supports which are provided on the elevating body so as to protrude forward and can support a lower part of a wheelchair frame; A driving unit provided to be able to drive the elevating body up and down, and a forward ascending means capable of inclining a front side of a wheelchair supported by the wheelchair support member upward with the elevating body rising. A lifting and lowering device for a wheelchair, wherein the raising means includes a lifting guide frame formed to extend linearly in a vertical direction, and a wheelchair attached to the lifting body with a front end inclined upward. A support, and the wheelchair support is held at substantially the same level as the base frame when the lift is at the lowest position, and the wheelchair support follows the upward inclination of the lift as the lift rises. A front part of the wheelchair is formed so as to be tiltable upward.

According to a fourth aspect of the present invention, there is provided a wheelchair elevating device, comprising: a base frame having a pair of front and rear wheels; an elevating guide frame extending vertically and standing upright on the base frame; A lifting and lowering body having a roller and a lower roller, which is guided by the lifting and lowering guide frame and can be raised and lowered; A pair of left and right wheelchair supports formed and having a width larger than a turning diameter on the plane of the caster wheel, a driving means provided to be able to drive the elevating body up and down, and an elevating of the elevating body A wheel-chair elevating device, comprising: a front ascending device capable of inclining a front side of the wheelchair supported by the wheelchair support member upward. A lifting and lowering guide frame having a forwardly inclined portion inclined forward and a rearwardly inclined portion extending obliquely rearward and upward from the upper end of the forwardly inclined portion; An elevating body that can assume a rearwardly inclined part position and a forwardly inclined part position, wherein the upper roller and the lower roller are respectively at the rearwardly inclined part position and the forwardly inclined part of the elevating guide frame at the lowest position. And the wheelchair support is held substantially horizontally at the same level as the ground, and the upper roller and the lower roller are respectively moved backward by the elevation guide frame as the elevation body rises. Wherein the front end side of the wheelchair support is formed so as to be tiltable upward.

According to a fifth aspect of the present invention, there is provided a wheelchair lift device according to any one of claims 2 and 3, wherein the wheelchair support is rotatable with respect to the lift member. The wheelchair lifting / lowering device is provided with a protruding angle variable mechanism capable of adjusting a protruding angle of the wheelchair support member.

According to a sixth aspect of the present invention, there is provided a wheelchair elevating device according to any one of the second, third and fourth aspects, wherein the distance between the pair of wheelchair supports is adjusted. A wheelchair elevating device comprising a possible interval adjusting mechanism.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 9 show a first embodiment of the present invention. A wheelchair lifting / lowering device (hereinafter abbreviated as a lifting / lowering device) indicated by a reference numeral 1A in the drawing includes a pair of a front wheel 17 and a rear wheel 1 respectively.
8, an elevating guide frame 20 having a forwardly inclined portion 21 and a rearwardly inclined portion 22 and standing upright on the base frame 10, and an elevating guide frame 20 having an upper roller 34 and a lower roller 36. Elevating body 3 that is guided and goes up and down
0, a wheelchair support 40 protruding forward from the elevating body 30, a gap adjusting mechanism 50, a driving means 60 mainly including a gear mechanism 61, a front inclined portion 21 of the elevating guide frame 20, The apparatus is provided with forward raising means 55 including the inclined portion 22 and the upper roller 34 and the lower roller 36 of the elevating body 30. In the following description, the left-right portion of the lifting device 1A will be described with respect to the left-right symmetric portion, and the description of the right portion will be omitted.

The base frame 10 includes a pair of base pipes 12 arranged in the front-rear direction, cross members 13 for connecting the pair of base pipes 12, and rear ends of the left and right base pipes 12. It is formed in a frame shape with a horizontal member 14 that is provided between the upright columns 15 and 15 and that protrudes to both sides. The base pipe 12
A front wheel 17 is attached to a front end of the vehicle, and a rear wheel 18 composed of caster wheels with a foot-operated brake is attached to both ends of the lateral member 14, respectively.

The lifting guide frame 20 includes an upper roller 3
4, a pair of left and right guide rail-shaped rectangular members for guiding the lower roller 36 so as to be able to roll, and is formed in a frame shape by back plates 26 and 27, and extends vertically in the rear portion of the base frame 10 and stands upright. Have been. Reference numeral 15 denotes a column, and a handle for assisting an assistant is provided on the rear side of the elevating guide frame 20.

The lift guide frame 20 is inclined forward toward the lower base end (for example, an inclination angle of 30 degrees from the vertical line).
A front inclined portion 21 having a predetermined length and a bent portion 2
3, a rear inclined portion 22 having a predetermined length inclined rearward and upward (for example, an inclination angle of 10 degrees rearward from the vertical line). In addition, on the upper part of the lifting guide frame 20,
A pulley 63 is pivotally mounted on a horizontal axis in the left-right direction, and a hook 65 is attached near the pulley 63.

The elevating body 30 includes a pair of elevating side plates 31, 31 disposed to face left and right, connecting plates 32, 32 disposed to face each other and connecting the left and right elevating side plates 31, and a vertical direction. The upper roller 34 and the lower roller 36, which are provided at predetermined intervals and roll by being guided by the elevating guide frame 20, and the upper and lower
It has a pair of guide pipes 38, 38 and is formed in a frame shape. The upper roller 34 and the lower roller 36 are pivotally supported by shafts 35 and 37, respectively.
Between them, a pulley 64 pivotally supported on a horizontal axis in the front-rear direction is pivotally mounted.

The wheelchair support 40 is formed of a square pipe, is provided extending in the front-rear direction, and a base 41 extending upward at substantially a right angle is fixed to the rear end. It is slidably supported by 30 guide pipes 38.

The base 41 is provided with horizontal shafts 43 projecting inward in a horizontal direction.
Are inserted into the guide pipes 38, 38, respectively, so that the left and right wheelchair supports 40, 40 approach and separate from each other. When the lifting body 30 is at the lowermost position, the wheelchair support body 40 is formed outside the base frame 10 so as to be parallel to and substantially at the same level.

The line Y connecting the centers of the shafts 35 and 37 of the elevating body 30 vertically and the line extending in the front-rear direction of the wheelchair support 40 are formed at substantially right angles. The above guide pipe 3
8, 38 and the horizontal shafts 43, 43, the wheelchair support 4
And the left and right wheelchair support 4
The intervals of 0 and 40 can be fixed at required intervals.

At the front end of the wheelchair support 40, an upward U-shaped support piece 44 for supporting the lower side of the frame 71 of the wheelchair 70 for elevating and lowering is attached, and at the rear end of the wheelchair support 40, Supports 42, 42 are provided diagonally parallel to the base 41 at a predetermined interval.
Of the wheelchair 70 between the columns 42, 42 so as to support the rear end side of the frame 71.

A belt hook 41 is provided on the upper end of the base 41.
a wheelchair 70 supported by a wheelchair support 40
, A belt 49 capable of tightening the passenger is attached.

Incidentally, the front inclined portion 21 and the rear inclined portion 22 of the elevating guide frame 20 and the upper roller 34 of the elevating body 30,
Due to the configuration of the lower roller 36, the front raising means 55 of the present invention capable of inclining the front end side of the wheelchair support member 40 upward is formed.

In this embodiment, the driving means 60 includes a gear, a ratchet mechanism, etc., and the gear mechanism 6 capable of winding and unwinding the rope 62 depending on the rotation direction of the driving handle 61a.
1 and its rope 62, and the aforementioned pulleys 63, 64,
And a hook 65. This gear mechanism 61
Is attached to a rear portion of the lifting guide frame 20, and the rope 62 is wound around pulleys 63 and 64, and the end is fixed to a hook 65. The vertical position of the elevating body 30 is determined via the pulley 64 by the amount of winding the rope 62.

Next, the elevating device 1A thus configured
The operation of will be described.

When the elevating device 1A is not in use, the elevating body 30 is usually at the lowest position, the upper roller 34 is located on the rear inclined portion 22 of the elevating guide frame 20, and the lower roller 36
Is in the forward inclined portion 21, and the line Y connecting the centers of the shafts 35 and 37 vertically is substantially vertical (see FIG. 4). The wheelchair support 40 is located substantially horizontally and in a position parallel to the outside of the base frame 10. At this time, the rope 62 is in the most extended state (see FIGS. 1 and 2).

Using this lifting device 1A, a wheelchair 70
When the vehicle is mounted on a car,
And the wheelchair support 40 at the lowest position
Of the wheelchair support 4 on the left and right sides by the distance adjustment mechanism 50.
The interval between 0 and 40 is adjusted so as to match the left and right width of the frame 71.

Next, the drive handle 61a is rotated in the rope winding direction to wind the rope 62 and pulley 6
4 is lifted up to raise the lifting body 30. At this time, the upper roller 34 of the elevating body 30 rolls obliquely rearward and upward along the rear inclined portion 22 of the elevating guide frame 20, and the lower roller 36 rolls obliquely forward and upward along the front inclined portion 21. Then, the lower roller 36 moves to the backward inclined portion 22 beyond the bent portion 23.
As a result, a line Y connecting the centers of the shafts 35 and 37 vertically is inclined such that the shaft 35 side is inclined rearward (see FIG. 5) and the wheelchair support 40
The front end is inclined upward by 10 degrees from the rear end.

As the wheelchair 70 rises from the lowermost position, the wheelchair support 40 contacts the lower portion of the frame 71,
Finally, the running wheel 72 and the caster wheel 73 of the wheelchair 70 are raised above the ground (see FIG. 8). At this time, the front part of the wheelchair 70 rises with the upward inclination of the front end side of the wheelchair support member 40, and the center of gravity of the wheelchair 70 occupant shifts slightly to the back side, so that a stable posture is achieved. And the frame 71
The support piece 44 supports the front side, and the rear side of the frame 71 is stably supported between the columns 42, 42. In addition,
When the entire wheelchair support body 40 abuts on the frame 71, the left and right belts 49, 49 are tightened together with the occupant of the wheelchair 70, and the lifting device 1A is moved to the vicinity of the vehicle in this state.

Further, the pulley 64 is further pulled up by the winding operation of the rope 62, and the lifting body 3
Raise 0 to the desired height. This raised position is held by the gear mechanism 61. At this time, the wheelchair 70 rises with the front-side upward posture immediately after the rise, and
2. The caster wheel 73 hangs downward from the wheelchair support 40, and the running wheel 72, the caster wheel 73 and the base frame 1
Between 0 and 0, a large three-dimensional space is formed (see FIG. 9).

Then, the elevating device 1A is moved in the direction of arrow X in FIG. 9, and the wheelchair support member 40 and the wheelchair 70 at the ascending position are advanced above the floor 80 of the car with the door open. At this time, the base frame 10 moves below the floor 80 of the automobile, and the wheelchair support 40 and the wheelchair 70 move to the floor 8.
Go up 0.

Next, the drive handle 61a is turned over to pull out the rope 62 from the gear mechanism 61. As a result, the elevating body 30, the wheelchair support 40 descends via the pulley 64 due to the weight of the elevating body 30, the wheelchair support 40, the wheelchair 70, and the like.

With this lowering, the running wheels 7 of the wheelchair 70
2. The caster wheel 73 abuts on the floor 80, and the wheelchair 70 is mounted on the automobile. When the elevating body 30 is further lowered, the wheelchair support 40 separates from the lower part of the frame 71 of the wheelchair 70, and the wheelchair support 40 is moved from the frame 71 to the floor 80.
The elevator device 1A is retracted at a position between
Is completed on the car.

During this time, the wheelchair 70 can move upward between the ground GL and the floor 80 in a stable posture with its front portion facing upward, and ascend without giving the occupant of the wheelchair 70 a forward curling feeling. In addition, the center of gravity of the lifting device 1A when the wheelchair 70 is raised and lowered is less moved, and the stability of the lifting operation can be maintained. Further, after the wheelchair 70 is mounted on the vehicle, the lifting device 1A can be mounted on the vehicle and move.

On the other hand, when there is no space below the floor where the base frame 10 of the lifting / lowering device 1A can enter, such as a rising frame at the entrance, a rim-shaped relay stand having the same height as the floor of the rising frame (not shown). ) Is used to move the wheelchair 70 upward. In other words, the relay frame is attached to the rising frame, and the base frame 10 is made to enter under the relay frame, so that the wheelchair 70 can be raised on the frame in the same manner as the above-described upward movement to the floor 80.

When the wheelchair 70 is to be lowered from a high floor such as an automobile or a rising frame, the wheelchair 70 can be lowered from a high position to the ground GL by the above-described reverse procedure of mounting.

FIGS. 10 to 12 show a second embodiment of the present invention, which is characterized by the structures of the forward raising means and the driving means. In the following description, components that are the same as or equivalent to those of the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

The lifting device 1B according to the second embodiment includes
Base frame 10 having a pair of front wheels 17 and rear wheels 18
An elevating guide frame 25 erected on the base frame 10, an elevating body 30 having an upper roller 34 and a lower roller 36 and guided by the elevating guide frame 25 to elevate and lower;
A wheelchair support 45 protruding forward from the elevating body 30, a gap adjusting mechanism 50, a male screw 66, a female screw 6
7 and a lifting guide frame 2
5 and a wheelchair support 45 and a forward raising means 55.

The lifting guide frame 25 is provided with the upper roller 3
4, a pair of right and left rectangular members in the form of guide rails for rollingly guiding the lower roller 36;
It is formed in a frame shape linearly extending from the base end side fixed to the rear part to the upper end side.

The lifting guide frame 20 is, for example,
It is erected at an inclination angle of 10 degrees backward from the vertical line,
Bearings 68, 68 constituting part of the driving means 60 are mounted on the same axis on the upper and lower parts, respectively.

The elevating body 30 is provided with one connecting plate 32 disposed in a substantially horizontal plane between a pair of left and right elevating side plates 31, and the center of the connecting plate 32 is the same as the bearings 68, 68. On the axis, a female screw portion 67 which constitutes a part of the driving means 60
Is attached. Note that the upper roller 34, the lower roller 36, the guide pipes 38, 38, and the like are the same as those of the elevating body 30 of the first embodiment.

The wheelchair support 45 is formed of a rectangular pipe extending in the front-rear direction. Side plates 46, 46 for supporting the lower part of the frame 71 of the wheelchair 70 are attached to the side surfaces thereof. A base 41 extending upward at substantially right angles is fixed to the rear end of the wheelchair support 45, and horizontal shafts 43, 43 similar to the wheelchair support 40 of the first embodiment project on the base 41. Has been established. When the lift 30 is at the lowermost position, the wheelchair support 45 is connected to the base frame 1.
It is formed so as to be located at substantially the same level as 0.

By the combination of the lift guide frame 25 and the wheelchair support 45, the front end side of the wheelchair support 45 between the lowermost position and the uppermost position of the lifter 30
It ascends and descends 10 degrees upward with respect to the horizontal line. With the configuration of the lifting guide frame 25 and the wheelchair support 45, the front lifting means 55 of the lifting device 1B of the second embodiment is used.
Is formed.

The drive means 60 of the elevating device 1B comprises a male screw body 66 having a drive handle 66a, a female screw portion 67 having a pair of screws, and bearings 68, 68. The male screw body 66 is screwed and penetrated into the female screw part 67 with the axis line extending vertically, and the upper and lower ends are rotatably supported by bearings 68, 68, and are disposed on the lifting guide frame 25. Have been. By the rotation of the male screw body 66, the female screw part 67, that is, the elevating body 30 is raised,
Alternatively, it is configured to move downward.

According to the elevating device 1B of the second embodiment, when the elevating body 30 is at the lowest position in the non-use state, the upper roller 34 and the lower roller 36 are at the lowermost part of the elevating guide frame 25, and the shaft 35 , 37 are vertically inclined at 10 degrees rearward parallel to the lifting guide frame 25, and the front end of the wheelchair support 45 is inclined 10 degrees upward from the rear end.

Using this lifting device 1B, a wheelchair 70
When the vehicle is mounted on an automobile, the base frame 10 and the wheelchair support 45 at the lowest position are made to enter the frame 71 from the rear of the wheelchair 70 (see FIG. 12), and the distance between the left and right wheelchair supports 45, 45 is adjusted. The left and right widths of the frame 71 are matched.

Next, the drive handle 66 of the drive means 60
a is rotated in the ascending / descending body 30 ascending direction to ascend the ascending / descending body 30. As the elevating body 30 rises, first, the front end side of the wheelchair support 45 abuts on the lower part of the frame 71, and raises the front caster wheel 73 of the wheelchair 70. Subsequently, the entire upper surface of the wheelchair support 45 abuts on the lower part of the frame 71. Then, the wheelchair 70 is in the front-up posture, and finally, the running wheel 72 of the wheelchair 70 is raised above the ground GL. The two-dot chain line in FIG. 12 indicates the uppermost position of the elevating body 30.

During this time, the occupant of the wheelchair 70 ascends without causing a sense of instability of turning forward. Note that the frame 71 is stably supported on the sides by the side plates 46, 46 and the columns 42, 42. Hereinafter, the lifting operation is performed according to the lifting procedure of the lifting device 1A of the first embodiment.

According to the lifting / lowering device 1B of the second embodiment, the forward raising means 55 and the driving means 60 can be simply configured.

FIGS. 13 to 15 show a third embodiment of the present invention, which is characterized by the structure of the wheelchair support.

The lifting device 1C according to the third embodiment has
Base frame 10 having a pair of front wheels 17 and rear wheels 18
An elevating guide frame 20 erected on the base frame 10, an elevating body 30 having an upper roller 34 and a lower roller 36 and guided by the elevating guide frame 20 to elevate and lower;
A wheelchair support 47 protruding forward from the elevating body 30, a distance adjusting mechanism 50, a driving means 60 mainly including a gear mechanism 61, and a front inclined portion 2 of the elevating guide frame 20.
1, a forward raising means 55 composed of the rear inclined portion 22 and the upper roller 34 and the lower roller 36 of the elevating body 30.

The wheelchair support 47 is made of a flat member extending in the front-rear direction, and has left and right side edges formed with rising side edges 47a, 47a bent upward.
At the rear end of the wheelchair support 47, a base 41 extending upward at a substantially right angle is fixed, and horizontal shafts 43, 43 project inward from the base 41, so that the wheelchair support 40 of the first embodiment is provided. Similarly, a pair of wheelchair supports 47 are formed so as to approach and separate from each other in the left and right direction. When the lifting body 30 is at the lowest position, the wheelchair support 47 is
It is formed to be located on L.

The rising edge 47 of the wheelchair support 47
The distance between the wheels a and 47a is slightly larger than the turning diameter of the caster wheel 73 of the wheelchair 70 on the plane, and
2. The caster wheels 73 are formed at intervals such that they can guide the forward and backward movement of the caster wheels 73 in the front-rear direction, and can turn freely when the caster wheels 73 are reversed.

Further, the wheelchair support 47 is formed by the front raising means 55 so that the front end side can be inclined upward from the lowest position in the horizontal state as it rises, similarly to the front raising means 55 of the lifting device 1A. ing.

Using this lifting device 1C, a wheelchair 70
When the vehicle is mounted on an automobile, the distance between the wheelchair supports 47 and 47 is adjusted by the distance adjusting mechanism 50 so that the running wheels 72 and
The wheelchair 70 is positioned at the lowest position from the front side of the wheelchair support 47 on the ground GL at the lowest position.
And the running wheel 72 and the caster wheel 73 are moved onto the wheelchair support 47 (see FIG. 15).

Next, the drive handle 61a is rotated in the winding direction to raise the elevating body 30. With this rise, the wheelchair support 47 in the horizontal state is gradually inclined upward at the front end side, and when the lower roller 36 passes over the bent portion 23, the front end side of the wheelchair support 47 is directed upward by 10 degrees from the rear end side. It becomes a front up posture. Further, by continuing the engulfing operation, the elevating body 30, the wheelchair support 47, and the wheelchair 70 are raised to the ascending position while maintaining the front-up posture, and between the wheelchair support 47 and the base frame 10,
A large three-dimensional space is formed (see a two-dot chain line in FIG. 15).

Then, the lifting device 1C is moved to the vicinity of the vehicle, and the front end of the upper surface of the wheelchair support 47 is made flush with the end of the floor 80 of the vehicle. You can make a move. Further, in the rising frame, the front end of the upper surface of the wheelchair support 47 is aligned with the same height as the rising frame end, so that the ascending movement can be performed in the same manner as described above.

It should be noted that the present invention is not limited to the above description and examples of the drawings, and the embodiments thereof can be modified without departing from the technical idea of the present invention. For example, wheelchair support 40 or wheelchair support 4
5 may be pivotally attached to the base 41 so that the forwardly projecting angle thereof can be adjusted in a plurality of steps.

Although the lifting guide frame has a bent shape or a straight shape, it may have a curved shape. Further, an electric motor may be combined with the driving means.

Further, in addition to the above-described embodiment, a combination of the elevating guide frame 25, the wheelchair support 45, and the driving means 60 mainly including the gear mechanism 61 may be used. The combination of
It can be changed as needed.

[0062]

As described above, according to the wheelchair elevating device of the present invention, the wheelchair elevating device itself has mobility, so that the wheelchair is mounted on the car and the entrance frame of the entrance of the Japanese house. It is possible to cope with ascending and descending with both at any time.

In addition, since the structure of the wheelchair is provided with the means for upwardly tilting the wheelchair, the backrest side of the wheelchair occupant is lifted in a lowered sitting position, so that it is possible to prevent a forward turning sensation and perform a stable lifting operation. Can be.

Further, since the wheelchair lifting / lowering device of the present invention can raise / lower the wheelchair without being mounted on the vehicle, it is suitable for any vehicle on which a wheelchair can be mounted, and has the effect of mounting / lowering the wheelchair. Play.

[Brief description of the drawings]

FIG. 1 is a side view of a wheelchair elevating device according to a first embodiment of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a partial side sectional view showing, on an enlarged scale, a left portion, an upper roller, and a lower roller of a lifting guide frame at a lowermost position of the lifting body.

FIG. 5 is a partial side sectional view showing, on an enlarged scale, a left portion, an upper roller, and a lower roller of the lifting guide frame when the lifting body is lifted.

FIG. 6 is an enlarged plan sectional view showing the lifting guide frame and the lifting body of FIG. 3;

FIG. 7 is a side view showing a state in which the wheelchair support of the wheelchair lifting / lowering device of the first embodiment is used at the lowest position.

FIG. 8 is a side view showing a state in which the wheelchair support is used at an intermediate raised position.

FIG. 9 is a side view showing the use state of the wheelchair support at the uppermost position.

FIG. 10 is a side view of a wheelchair elevating device according to a second embodiment of the present invention.

FIG. 11 is a front view of FIG. 10;

FIG. 12 is a side view showing the use state of the wheelchair lifting / lowering device of the second embodiment.

FIG. 13 is a side view of a wheelchair elevating device according to a third embodiment of the present invention.

FIG. 14 is a front view of FIG. 13;

FIG. 15 is a side view showing a use state of the wheelchair lifting / lowering device of the third embodiment.

[Explanation of symbols]

 1A, 1B, 1C Elevating device 10 Base frame 20, 25 Elevating guide frame 21 Forward inclined portion 22 Rear inclined portion 30 Elevating body 34 Upper roller 36 Lower roller 40, 45, 47 Wheelchair support 50 Distance adjusting mechanism 55 Forward raising means 60 Drive means 61 Gear mechanism 66 Male thread body 70 Wheelchair

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Makoto Furuya 35 Nihon Kasuga-gun, Nishi-Kasugai-gun, Aichi Pref. Address Arako Co., Ltd. (72) Inventor Tatsuhiko Oya 25, Kamifujiike, Yoshiwara-cho, Toyota-shi, Aichi F-term (reference) 4C040 AA08 HH02 JJ04 JJ08

Claims (6)

[Claims] 1. A base frame having wheels, an elevating guide frame erected on the base frame, an elevating body capable of elevating along the elevating guide frame, and protruding forward from the elevating body. A wheelchair support capable of supporting the lower part of the wheelchair, driving means for driving the elevating body up and down, and forward rising means capable of inclining the front side of the wheelchair supported by the wheelchair support upward. A lifting device for a wheelchair, comprising: 2. A base frame having a pair of front and rear wheels, an elevating guide frame extending vertically and standing upright on the base frame, and a pair of left and right upper rollers and lower rollers. An elevating body that is guided by a guide frame and can move up and down; a pair of left and right wheelchair supports that are provided to protrude forward from the elevating body and that can support a lower part of a wheelchair frame; A driving means provided, a lifting device for a wheelchair, comprising: a front-up means capable of inclining the front side of a wheelchair supported by the wheelchair support body with the lifting of the lifting body upward, An elevating guide frame having a forwardly inclined portion inclined forward at a base end side, and a rearwardly inclined portion extending obliquely rearward and upward from an upper end of the forwardly inclined portion; And an elevating body in which the lower roller can take a backward inclined position and a forward inclined position, respectively, of the elevating guide frame, wherein the elevating body is at a lowermost position, and the upper roller and the lower roller are respectively the elevating guide frame. The wheelchair support is held substantially horizontally at the same level as the base frame at the rear inclined position and the forward inclined position, and the upper roller and the lower roller Are respectively located at rearwardly inclined positions of the elevating guide frame, and formed so that a front end side of the wheelchair support can be inclined upward. 3. A base frame having a pair of front and rear wheels, an elevating guide frame extending vertically and standing upright on the base frame, and a pair of left and right upper rollers and lower rollers. An elevating body guided by a guide frame and capable of elevating; a pair of left and right wheelchair supports provided on the elevating body so as to protrude forward to support a lower part of a wheelchair frame; A driving means provided, a lifting device for a wheelchair, comprising: a front-up means capable of inclining the front side of a wheelchair supported by the wheelchair support body with the lifting of the lifting body upward, The front ascending means comprises an elevating guide frame formed to extend linearly in a vertical direction; and a wheelchair support attached to the elevating body with a front end side inclined upward. When the lifting body is at the lowest position, the wheelchair support is held at substantially the same level as the base frame, and the front side of the wheelchair faces upward following the upward inclination of the wheelchair support as the lifting body rises. A lift device for a wheelchair, wherein the lift device is formed so as to be tiltable. 4. A base frame having a pair of front and rear wheels, an elevating guide frame extending in a vertical direction and standing on the base frame, and a pair of upper and lower rollers on the left and right sides. An elevating body which is guided by a guide frame and which can be raised and lowered, and which is provided on the elevating body so as to protrude forward and is formed so as to be able to support a running wheel and a lower part of a caster wheel on one side of a wheelchair, respectively, and has a width of the caster. A pair of left and right wheelchair supports formed to be larger than the turning diameter on the plane of the wheel, driving means provided to be able to drive the elevating body up and down, and supported by the wheelchair support as the elevating body rises A lifting device for a wheelchair, comprising: a front ascending device capable of inclining a front side of a wheelchair upward, wherein the front ascending device is a forwardly inclined portion inclined forward at a base end side. And an elevating guide frame having a rearward inclined portion extending obliquely rearward and upward from the upper end of the forwardly inclined portion, wherein the upper roller and the lower roller at the lowermost position respectively include a rearwardly inclined portion and a forwardly inclined portion of the elevating guide frame. An elevating body that can take a position, wherein the elevating body is at a lowermost position, the upper roller and the lower roller are respectively located at a rearwardly inclined position and a forwardly inclined position of the elevating guide frame, and the wheelchair support While being held substantially horizontally at the same level as the ground, with the rise of the elevating body, the upper roller and the lower roller are respectively located at the rear inclined positions of the elevating guide frame, and the front end side of the wheelchair support is An elevator device for a wheelchair, which is formed so as to be tiltable upward. 5. The lift device for a wheelchair according to claim 2, wherein the wheelchair support is rotatably mounted on the lift and the wheelchair support. A lifting device for a wheelchair, comprising: a projection angle variable mechanism capable of adjusting a projection angle. 6. The wheelchair lifting / lowering apparatus according to claim 2, further comprising an interval adjusting mechanism capable of adjusting an interval between the pair of wheelchair supports. A lifting device for a wheelchair.