JP4141027B2 - Wheelchair lifting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lifting device for a wheelchair that is used when moving to an automobile while riding in a wheelchair.
[0002]
[Prior art]
Conventionally, when traveling indoors or outdoors while riding in a wheelchair, when moving to a car, the car is usually raised and lowered between the ground and the car floor at the rear of a car having a box carrier, so-called one-box car A method has been adopted in which a lifting device equipped with a mounting table is attached, a wheelchair is mounted on the mounting table, and the passenger is transferred to the car together with the wheelchair.
[0003]
[Problems to be solved by the invention]
However, in the conventional lifting device for wheelchairs as described above, it is necessary to equip a vehicle with a lifting device having a complicated structure, and the lifting device is a dedicated equipment for the vehicle.
[0004]
Therefore, when moving up and down the wheelchair in other places, for example, when going out of the house indoors, the elevator of the automobile cannot be used in the rising fence of the entrance of a Japanese house with a large difference in height, so prepare another elevator Or there was a problem of relying on the effort of the caregiver.
[0005]
In addition, when the elevator device is raised to a high position while sitting on the wheelchair, there is a problem that the wheelchair occupant tends to feel forward and feel unstable.
[0006]
The present invention has been made in view of the above, and an object of the present invention is to prevent the feeling of sag before rising while the apparatus itself has mobility and can raise and lower the wheelchair both indoors and outdoors. An object of the present invention is to provide a lifting device for a wheelchair that can be used.
[0007]
[Means for Solving the Problems]
The present invention has been made to achieve the above object,
A wheelchair lifting apparatus according to a first invention includes a base frame having a pair of front and rear wheels,
An elevating guide frame extending up and down and standing on the base frame;
A lifting body that has a pair of left and right upper rollers and a lower roller and that can be lifted and lowered by being guided by the lifting guide frame;
A pair of left and right wheelchair supports provided on the elevating body and projecting forward to support the lower part of the wheelchair frame;
Drive means provided to be capable of moving up and down the lifting body;
A lifting device for wheelchairs, comprising: a front lifting means capable of tilting upward the front side of the wheelchair supported by the wheelchair support as the lifting body rises,
The front raising means
A lifting guide frame having a forward inclined portion inclined forward on the base end side, and a rear inclined portion extending obliquely rearward and upward from the upper end of the forward inclined portion;
The upper roller and the lower roller at the lowest position are each composed of a lifting body that can take the position of the rearward tilting portion and the forward tilting portion of the lifting guide frame,
When the elevating body is at the lowest position, the upper roller and the lower roller are respectively located at the rearward tilting portion position and the forward tilting portion position of the lifting guide frame, and the wheelchair support body is substantially horizontal at substantially the same level as the base frame. As well as
As the elevating body is raised, the upper roller and the lower roller are respectively positioned at the rearwardly inclined portions of the elevating guide frame, and the front end side of the wheelchair support body is formed so as to be inclined upward. It is a lifting device for a wheelchair.
[0009]
A wheelchair lifting apparatus according to a second invention includes a base frame having a pair of front and rear wheels,
An elevating guide frame extending up and down and standing on the base frame;
A lifting body that has a pair of left and right upper rollers and a lower roller and that can be lifted and lowered by being guided by the lifting guide frame;
A pair of left and right wheelchair supports provided on the elevating body and projecting forward to support the lower part of the wheelchair frame;
Drive means provided to be capable of moving up and down the lifting body;
A lifting device for wheelchairs, comprising: a front lifting means capable of tilting upward the front side of the wheelchair supported by the wheelchair support as the lifting body rises,
The front raising means
An elevating guide frame formed linearly in the vertical direction;
A wheelchair support attached to the lifting body with the front end side inclined upward,
In the lowest position of the lifting body, the wheelchair support is held at substantially the same level as the base frame,
A lifting device for a wheelchair, wherein the front side of the wheelchair is formed so as to be able to tilt upward in accordance with the upward tilt of the wheelchair support as the lifting body is raised.
[0010]
A wheelchair lifting apparatus according to a third aspect of the present invention includes a base frame having a pair of front and rear wheels,
An elevating guide frame extending up and down and standing on the base frame;
A lifting body that has a pair of left and right upper rollers and a lower roller and that can be lifted and lowered by being guided by the lifting guide frame;
The left and right sides are formed so as to project forward from the lifting body so as to be able to support the traveling wheel and the lower caster wheel on one side of the wheelchair and whose width is larger than the turning diameter on the plane of the caster wheel. A pair of wheelchair supports;
Drive means provided to be capable of moving up and down the lifting body;
A lifting device for wheelchairs, comprising: a front lifting means capable of tilting upward the front side of the wheelchair supported by the wheelchair support as the lifting body rises,
The front raising means
A lifting guide frame having a forward inclined portion inclined forward on the base end side, and a rear inclined portion extending obliquely rearward and upward from the upper end of the forward inclined portion;
The upper roller and the lower roller at the lowest position are each composed of an elevating body that can take the position of the rearward tilting portion and the position of the forward tilting portion of the lifting guide frame,
When the elevating body is at the lowest position, the upper roller and the lower roller are respectively located at the rearward tilt position and the forward tilt position of the lift guide frame, and the wheelchair support is held substantially horizontally at the same level as the ground. And
As the elevating body is raised, the upper roller and the lower roller are respectively positioned at the rearwardly inclined portions of the elevating guide frame, and the front end side of the wheelchair support body is formed so as to be inclined upward. It is a lifting device for a wheelchair.
[0011]
A lifting device for a wheelchair according to a fourth invention is the lifting device for a wheelchair according to any one of claims 1 and 2 ,
A lifting device for a wheelchair characterized in that the wheelchair support is pivotally attached to the lifting body and includes a projecting angle variable mechanism capable of adjusting a projecting angle of the wheelchair support. It is.
[0012]
Fifth wheelchair lift device of the present invention is claimed in claim 1, claim 2, a wheelchair lift device according to claim 3,
A lifting device for a wheelchair comprising an interval adjusting mechanism capable of adjusting an interval between the pair of wheelchair supports.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
1 to 9 show a first embodiment of the present invention, and a lifting device for a wheelchair (hereinafter abbreviated as lifting device) denoted by reference numeral 1A in the figure is a base having a pair of front wheels 17 and rear wheels 18 respectively. The frame 10, an elevating guide frame 20 having a forward inclined portion 21 and a rear inclined portion 22, which is erected on the base frame 10, and an upper roller 34, a lower roller 36, and being guided by the elevating guide frame 20 Elevating body 30 to be moved, wheelchair support body 40 projecting forward from elevating body 30, distance adjusting mechanism 50, driving means 60 mainly composed of gear mechanism 61, and forward inclined portion of elevating guide frame 20 21, a rearwardly inclined portion 22 and a forward raising means 55 constituted by an upper roller 34 and a lower roller 36 of the elevating body 30. In the following description, the left-right symmetric part of the lifting device 1A is described on the left side, and the description on the right side is omitted.
[0015]
The base frame 10 is erected on a pair of base pipes 12 that are arranged in the front-rear direction, on the horizontal rods 13 and 13 that connect the pair of base pipes 12, and on the rear ends of the left and right base pipes 12. The support columns 15 are connected to each other and have a cross member 14 projecting from both sides and formed in a frame shape. Further, a front wheel 17 is attached to the front end of the base pipe 12, and rear wheels 18 made of caster wheels with foot-operated brakes are attached to both ends of the lateral member 14.
[0016]
The elevating guide frame 20 is mainly composed of a pair of left and right square members in the form of guide rails for guiding the upper roller 34 and the lower roller 36 so as to roll, and is formed in a frame shape by the back plates 26 and 27. It extends up and down in the vertical direction. Reference numeral 15 denotes a support, and a handle for pushing an assistant is provided on the rear surface side of the lifting guide frame 20.
[0017]
The elevating guide frame 20 has a forward inclined portion 21 having a predetermined length inclined forward (e.g., an inclination angle of 30 degrees from a vertical line) toward the lower base end side, and a rear upper portion with the upper end of the forward inclined portion 21 as a bent portion 23. It is formed with a rearwardly inclined portion 22 having a predetermined length that is inclined (for example, an inclination angle of 10 degrees backward from the vertical line). A pulley 63 is pivotally mounted on the horizontal axis in the left-right direction at the upper part of the elevating guide frame 20, and a hook 65 is attached in the vicinity thereof.
[0018]
The elevating body 30 includes a pair of elevating side plates 31, 31 that are arranged relative to the left and right, connecting plates 32, 32 that are arranged opposed to the front and rear and connect the left and right elevating side plates 31, and a predetermined interval in the vertical direction. And an upper roller 34 and a lower roller 36 that roll while being guided by the lifting guide frame 20, and a pair of upper and lower guide pipes 38, 38 that are horizontally attached through the left and right lifting side plates 31. 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, and a pulley 64 pivotally supported by a horizontal axis in the front-rear direction is pivoted between the connecting plates 32 and 32.
[0019]
The wheelchair support 40 is formed of a square pipe and is provided extending in the front-rear direction, and a base 41 extending upward at a substantially right angle is fixed to the rear end, and the guide of the lifting body 30 via the horizontal shaft 43. The pipe 38 is slidably supported.
[0020]
The base 41 is provided with horizontal shafts 43 and 43 that are horizontally parallel to the inner side. The horizontal shaft 43 and the horizontal shaft 43 are inserted into the guide pipes 38 and 38, respectively. Are configured so as to be close to and separated from each other. And in the lowest position, the wheelchair support body 40 exists in the outer side of the base frame 10, is parallel to it, and is formed so that it may be located in the substantially same level.
[0021]
The line Y connecting the centers of the shafts 35 and 37 of the elevating body 30 up and down and the line extending in the front-rear direction of the wheelchair support body 40 are formed substantially at right angles. The guide pipes 38 and 38 and the horizontal shafts 43 and 43 constitute a distance adjusting mechanism 50 for the wheelchair support 40, and the distance between the left and right wheelchair supports 40 and 40 can be fixed at a required distance. Yes.
[0022]
Further, an upward U-shaped support piece 44 that supports the lower side of the frame 71 of the wheelchair 70 that is supported to be lifted is attached to the front end of the wheelchair support 40, and the base 41 and the rear end of the wheelchair support 40 are Struts 42 and 42 that are obliquely parallel with each other at a predetermined interval are provided between them to reinforce the wheelchair support 40 and to support the frame 71 rear end side of the wheelchair 70 between the struts 42 and 42. ing.
[0023]
A belt hook 41a is provided at the upper end of the base 41, and a belt 49 capable of fastening the wheelchair 70 supported by the wheelchair support 40 together with the passenger is attached.
[0024]
It should be noted that the front end side of the wheelchair support 40 can be tilted upward by the configuration of the forward tilting portion 21 and the rearward tilting portion 22 of the lifting guide frame 20 and the upper roller 34 and lower roller 36 of the lifting body 30. The front rising means 55 of the invention is formed.
[0025]
In this example, the driving means 60 includes a gear, a ratchet mechanism, etc., and the gear mechanism 61 capable of winding and feeding the rope 62 depending on the rotation direction of the driving handle 61a, the rope 62, and the pulleys 63 and 64 described above. A hook 65 is used. The gear mechanism 61 is attached to the rear portion of the elevating guide frame 20, and the rope 62 is wound around pulleys 63 and 64 and the end portion is fixed to the hook 65. The vertical position of the elevating body 30 is determined via the pulley 64 by the amount of the rope 62 involved.
[0026]
Next, the operation of the lifting device 1A configured as described above will be described.
[0027]
When the lifting device 1A is not in use, the lifting body 30 is normally at the lowest position, the upper roller 34 is positioned at the rearward tilting portion 22 of the lifting guide frame 20, and the lower roller 36 is at the forward tilting portion 21, A line Y connecting the centers of the shafts 35 and 37 in the vertical direction is substantially vertical (see FIG. 4). And the wheelchair support body 40 exists in the position parallel to the outer side of the base frame 10 in the substantially horizontal state. At this time, the rope 62 is in the most extended state (see FIGS. 1 and 2).
[0028]
When the wheelchair 70 is mounted on an automobile using the lifting device 1A, an assistant causes the base frame 10 and the wheelchair support 40 located at the lowest position to enter from below the wheelchair 70 to below the frame 71 (see FIG. 7), the distance between the left and right wheelchair supports 40, 40 is adjusted by the distance adjusting mechanism 50 to match the left and right width of the frame 71.
[0029]
Next, the drive handle 61a is rotated in the rope winding direction to wind the rope 62, and the pulley 64 is lifted upward to raise the elevator 30. At this time, the upper roller 34 of the elevating body 30 rolls obliquely rearward and upward along the rearward inclined portion 22 of the elevating guide frame 20, and the lower roller 36 rolls obliquely forward and upward along the forward inclined portion 21. The lower roller 36 moves beyond the bent portion 23 to the rearward inclined portion 22. As a result, the line Y connecting the centers of the shafts 35 and 37 is inclined backward on the shaft 35 side (see FIG. 5), and the front end side of the wheelchair support 40 is inclined upward by 10 degrees from the rear end side.
[0030]
As the wheelchair 70 rises from the lowest position, the wheelchair support 40 comes into contact with the lower portion of the frame 71, and finally the traveling wheels 72 and caster wheels 73 of the wheelchair 70 are raised from the ground (see FIG. 8). At this time, the front part of the wheelchair 70 rises forward in association with the upward inclination of the front end side of the wheelchair support 40, and the center of gravity of the wheelchair 70 occupant moves toward the back and becomes a stable posture. The support piece 44 supports the front side of the frame 71, and stably supports the rear side of the frame 71 between the columns 42 and 42. When the entire wheelchair support 40 abuts against 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.
[0031]
Furthermore, by operating the rope 62 to be wound up, the pulley 64 is pulled up further, and the elevating body 30 is raised to a desired height. This raised position is held by the gear mechanism 61. At this time, the wheelchair 70 is lifted with the front side upward posture immediately after being lifted, and the traveling wheel 72 and the caster wheel 73 hang downward from the wheelchair support 40, and the traveling wheel 72, the caster wheel 73 and the base frame are lowered. A large three-dimensional space is formed between 10 and 10 (see FIG. 9).
[0032]
Then, the lifting device 1A is moved in the direction of the arrow X in FIG. 9, and the wheelchair support 40 and the wheelchair 70 in the raised position are advanced above the floor 80 of the automobile 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 advance above the floor 80.
[0033]
Next, the drive handle 61 a is reversed and the rope 62 is fed out from the gear mechanism 61. Thereby, the lifting body 30 and the wheelchair support body 40 are lowered via the pulley 64 due to the weight of the lifting body 30, the wheelchair support body 40, the wheelchair 70 and the like.
[0034]
Along with this lowering, the traveling wheel 72 and the caster wheel 73 of the wheelchair 70 come into contact with the floor 80, and the wheelchair 70 is mounted on the automobile. When the elevating body 30 is further lowered, the wheelchair support 40 is separated from the lower portion of the frame 71 of the wheelchair 70, and the wheelchair support 40 retracts the elevating device 1 </ b> A at a position between the frame 71 and the floor 80. Installation on the car is completed.
[0035]
During this time, the wheelchair 70 is in a stable posture with its front portion facing upward, can move up between the ground GL and the floor 80, and rises without giving the wheelchair 70 a forward feeling. Moreover, there is little center-of-gravity movement in the raising / lowering apparatus 1A at the time of raising / lowering the wheelchair 70, and the stability of raising / lowering work can be maintained. Further, the lifting device 1A after the wheelchair 70 is mounted on the automobile can be mounted on the automobile and moved.
[0036]
On the other hand, when there is no space for the base frame 10 of the lifting device 1A to enter below the floor surface, such as a rising wall at the entrance, an edge-like relay stand (not shown) having the same height as the rising floor surface is used. Thus, the wheelchair 70 is moved upward. In other words, the wheelchair 70 can be lifted and moved up to the heel similarly to the above-described ascending movement to the floor 80 by placing the relay board on the rising pole and allowing the base frame 10 to enter the lower side of the relay board.
[0037]
In addition, when lowering the wheelchair 70 from an automobile or a high floor surface such as a rising rod, the wheelchair 70 can be lowered from the high position to the ground GL by the reverse procedure of mounting described above.
[0038]
10 to 12 show a second embodiment of the present invention, which is characterized by the configuration of the front raising means and the driving means. In the following description, components that are the same as or equivalent to those in the first embodiment are assigned the same reference numerals, and descriptions thereof are omitted.
[0039]
The lifting device 1B according to the second embodiment includes a base frame 10 having a pair of front wheels 17 and rear wheels 18, a lifting guide frame 25 erected on the base frame 10, an upper roller 34, and a lower roller 36. A lifting body 30 that is guided by the lifting guide frame 25 and that moves up and down, a wheelchair support body 45 that protrudes forward from the lifting body 30, an interval adjustment mechanism 50, a male screw body 66, and a female screw 67. And a forward raising means 55 composed of a lifting guide frame 25 and a wheelchair support 45.
[0040]
The elevating guide frame 25 is mainly composed of a pair of left and right square members in the form of guide rails that guide the upper roller 34 and the lower roller 36 so as to be able to roll, and from the base end side fixed to the rear portion of the base frame 10 to the upper end side. It is formed in a frame shape extending linearly.
[0041]
The elevating guide frame 20 is erected with an inclination angle of 10 degrees rearward from the vertical line, for example, and bearings 68 and 68 constituting a part of the driving means 60 are provided on the same axis at the upper and lower portions, respectively. It is attached on the line.
[0042]
The elevating body 30 includes one connecting plate 32 disposed in a substantially horizontal plane between a pair of left and right elevating side plates 31, and the central portion of the connecting plate 32 is on the same axis as the bearings 68 and 68. A female screw portion 67 constituting a part of the driving means 60 is attached. The upper roller 34, the lower roller 36, the guide pipes 38, 38 and the like are the same as the lifting body 30 of the first embodiment.
[0043]
The wheelchair support 45 is formed of a rectangular pipe extending in the front-rear direction, and side plates 46 and 46 that support the lower side of the frame 71 of the wheelchair 70 are attached to the side surfaces thereof. Further, a base 41 extending upward at a substantially right angle is fixed to the rear end portion of the wheelchair support 45, and horizontal shafts 43, 43 similar to the wheelchair support 40 of the first embodiment protrude from the base 41. It is installed. The wheelchair support 45 is formed so as to be positioned at substantially the same level as the base frame 10 when the elevating body 30 is at the lowest position.
[0044]
By the combination of the lift guide frame 25 and the wheelchair support 45, the front end side of the wheelchair support 45 is lifted and lowered by 10 degrees upward with respect to the horizontal line between the lowest position and the highest position of the lift body 30. By the structure of this raising / lowering guide frame 25 and the wheelchair support body 45, the front raising means 55 of the raising / lowering apparatus 1B of 2nd Embodiment is formed.
[0045]
The drive means 60 of the lifting / lowering device 1B includes a male screw body 66 having a drive handle 66a, a female screw portion 67 and a bearing 68. This male threaded body 66 is threaded through the female threaded portion 67 with the axis line set in the vertical direction, and its upper and lower end portions are rotatably supported by bearings 68 and 68 and disposed in the lifting guide frame 25. Has been. By the rotation of the external thread body 66, the internal thread portion 67, that is, the elevating body 30 is moved upward or downward.
[0046]
According to the lifting device 1B of the second embodiment, when the lifting body 30 is in the lowest position in the non-use state, the upper roller 34 and the lower roller 36 are at the lowermost portion of the lifting guide frame 25, and the shafts 35 and 37 The line connecting the centers up and down is at a rearward inclination of 10 degrees parallel to the lifting guide frame 25, and the front end side of the wheelchair support 45 is inclined upward by 10 degrees from the rear end side.
[0047]
When the wheelchair 70 is mounted on an automobile using the lifting device 1B, the base frame 10 and the wheelchair support 45 located at the lowermost position are advanced from the rear of the wheelchair 70 to below the frame 71 (see FIG. 12). The distance between the left and right wheelchair supports 45 is matched to the left and right width of the frame 71.
[0048]
Next, the drive handle 66a of the drive means 60 is rotated in the ascending / descending body 30 ascending direction to raise the elevating body 30. As the elevating body 30 is raised, first, the front end side of the wheelchair support 45 comes into contact with the lower part of the frame 71 to raise the front caster wheel 73 of the wheelchair 70, and then the entire upper surface of the wheelchair support 45 comes into contact with the lower part of the frame 71. Thus, the wheelchair 70 is in the forward climbing posture, and finally the traveling wheel 72 of the wheelchair 70 is raised from the ground GL. A two-dot chain line in FIG. 12 indicates the uppermost position of the lifting body 30.
[0049]
During this time, the occupant of the wheelchair 70 rises without generating a sense of instability that is leaning forward. The side of the frame 71 is stably supported by the side plates 46 and 46 and the columns 42 and 42. Hereinafter, the lifting operation is performed according to the lifting procedure of the lifting device 1A of the first embodiment.
[0050]
According to the lifting device 1B of the second embodiment, the front raising means 55 and the driving means 60 can be simply configured.
[0051]
FIGS. 13-15 shows 3rd Embodiment of this invention, and it has the characteristics in the structure of a wheelchair support body.
[0052]
The lifting device 1C according to the third embodiment includes a base frame 10 having a pair of front wheels 17 and rear wheels 18, a lifting guide frame 20 erected on the base frame 10, an upper roller 34, and a lower roller 36. And a lift 30 that is guided by the lift guide frame 20 and that moves up and down, a wheelchair support 47 that protrudes forward from the lift 30, a distance adjustment mechanism 50, and a gear mechanism 61. It comprises a means 60 and a forward raising means 55 by means of a forward inclined part 21 and a backward inclined part 22 of the lifting guide frame 20 and an upper roller 34 and a lower roller 36 of the lifting body 30.
[0053]
The wheelchair support 47 is composed of a flat plate-like member extending in the front-rear direction, and rising side edges 47a and 47a bent upward are formed on the left and right side edges. A base 41 extending upward at a substantially right angle is fixed to the rear end portion of the wheelchair support 47, and horizontal shafts 43, 43 project inward from the base 41, and the wheelchair support 40 according to the first embodiment. Similarly, a pair of wheelchair supports 47 are formed so as to approach and separate from each other relative to the left and right. And it is formed so that the wheelchair support body 47 may be located on the ground GL in the raising / lowering body 30 in the lowest position.
[0054]
The distance between the rising side edges 47a and 47a of the wheelchair support 47 is formed to be larger than the turning diameter on the plane of the caster wheel 73 of the wheelchair 70, and the traveling wheel 72 and the caster wheel 73 are moved forward and backward. In addition to guiding, the caster wheel 73 is formed at a freely rotatable interval when moving forward and backward.
[0055]
The wheelchair support 47 is formed by the front raising means 55 so that the front end side can be inclined upward as it rises from the lowest position in the horizontal state, like the front raising means 55 of the lifting device 1A.
[0056]
When the wheelchair 70 is mounted on an automobile using the lifting device 1C, the distance adjustment mechanism 50 causes the distance between the wheelchair supports 47 and 47 to coincide with the left and right distance between the traveling wheel 72 and the caster wheel 73 of the wheelchair 70. The wheelchair 70 is retracted from the front side of the wheelchair support 47 on the ground GL at the lower position, and the traveling wheel 72 and caster wheel 73 are moved onto the wheelchair support 47 (see FIG. 15).
[0057]
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 gradually inclines upward at the front end side, and when the lower roller 36 crosses the bent portion 23, the front end side of the wheelchair support 47 is 10 degrees upward from the rear end side. It will be a front-up posture. Further, by continuing the entrainment operation, the lifting body 30, the wheelchair support body 47, and the wheelchair 70 are lifted to the ascending position while keeping the forward ascending posture, and a large three-dimensional object is formed between the wheelchair support body 47 and the base frame 10. A space is formed (see the two-dot chain line in FIG. 15).
[0058]
And while moving the raising / lowering device 1C to the vicinity of the automobile, the front end of the upper surface of the wheelchair support 47 is aligned with the end of the floor 80 of the automobile, and the wheelchair 70 itself is advanced to move upward on the floor 80. be able to. Further, in the rising heel, the front end of the upper surface of the wheelchair support 47 is aligned with the same height as the rising heel end, so that the upward movement can be performed in the same manner as described above.
[0059]
It should be noted that the present invention is not limited to the above description and examples, and the embodiments can be changed without departing from the technical idea of the present invention. For example, you may comprise so that the wheelchair support body 40 or the wheelchair support body 45 may be pivotally attached to the base 41, and the protrusion angle to the front can be adjusted in multiple steps.
[0060]
Moreover, although the raising / lowering guide frame showed the bent shape and the linear shape, it may be a curved shape. Moreover, you may combine an electric motor with a drive means.
[0061]
Further, in addition to the above-described embodiment, the combination of the lifting guide frame 25, the wheelchair support 45, and the driving means 60 mainly composed of the gear mechanism 61, such as the combination of the lifting guide frame, the wheelchair support, and the driving means is It can be changed as necessary.
[0062]
【The invention's effect】
As explained above, according to the lifting device for wheelchairs of the present invention, the lifting device for wheelchairs itself has mobility. Can be raised and lowered at any time.
[0063]
In addition, the configuration including the upwardly rising means for tilting the wheelchair upward raises the chair seat posture with the backrest side of the wheelchair occupant lowered, so that a forward feeling can be prevented and the elevator can be moved up and down in a stable state.
[0064]
In addition, the wheelchair lifting device of the present invention can lift and lower a wheelchair without being mounted on a vehicle, so that it is suitable for any vehicle on which a wheelchair can be mounted, and has an effect that the wheelchair can be lifted and lowered.
[Brief description of the drawings]
FIG. 1 is a side view of a lifting device for a wheelchair according to a first embodiment of the present invention.
FIG. 2 is a front view of FIG.
FIG. 3 is a plan view of FIG. 1;
FIG. 4 is an enlarged partial side sectional view showing a left side portion of an elevating guide frame, an upper roller, and a lower roller at the lowest position of the elevating body.
FIG. 5 is an enlarged partial side cross-sectional view showing a left side portion, an upper roller, and a lower roller of a lifting guide frame when the lifting body is raised.
6 is an enlarged plan sectional view showing the lifting guide frame and the lifting body of FIG. 3. FIG.
FIG. 7 is a side view showing a state in which the wheelchair support of the wheelchair lifting device of the first embodiment is in the lowest position.
FIG. 8 is a side view showing a use state where the wheelchair support is also in an intermediate lift position.
FIG. 9 is a side view showing a state where the wheelchair support is in the uppermost position.
FIG. 10 is a side view of a lifting device for a wheelchair according to a second embodiment of the present invention.
11 is a front view of FIG.
FIG. 12 is a side view showing a use state of the wheelchair lifting device of the second embodiment.
FIG. 13 is a side view of a lifting device for a wheelchair according to a third embodiment of the present invention.
14 is a front view of FIG. 13;
FIG. 15 is a side view showing a use state of the lifting device for a wheelchair according to the third embodiment.
[Explanation of symbols]
1A, 1B, 1C Lifting device 10 Base frame 20, 25 Lifting guide frame 21 Forward tilting part 22 Backward tilting part 30 Lifting body 34 Upper roller 36 Lower roller 40, 45, 47 Wheelchair support 50 Spacing adjustment mechanism 55 Front lifting means 60 Driving means 61 Gear mechanism 66 Male thread body 70 Wheelchair

Claims (5)

A base frame having a pair of front and rear wheels;
An elevating guide frame extending up and down and standing on the base frame;
A lifting body that has a pair of left and right upper rollers and a lower roller and that can be lifted and lowered by being guided by the lifting guide frame;
A pair of left and right wheelchair supports provided on the elevating body and projecting forward to support the lower part of the wheelchair frame;
Drive means provided to be capable of moving up and down the lifting body;
A lifting device for wheelchairs, comprising: a front lifting means capable of tilting upward the front side of the wheelchair supported by the wheelchair support as the lifting body rises,
The front raising means
A lifting guide frame having a forward inclined portion inclined forward on the base end side, and a rear inclined portion extending obliquely rearward and upward from the upper end of the forward inclined portion;
The upper roller and the lower roller at the lowest position are each composed of a lifting body that can take the position of the rearward tilting portion and the forward tilting portion of the lifting guide frame,
When the elevating body is at the lowest position, the upper roller and the lower roller are respectively located at the rearward tilting portion position and the forward tilting portion position of the lifting guide frame, and the wheelchair support body is substantially horizontal at substantially the same level as the base frame. As well as
As the elevating body is raised, the upper roller and the lower roller are respectively in the position of the rearward inclined part of the elevating guide frame, and the front end side of the wheelchair support body is formed so as to be inclined upward.
A lifting device for a wheelchair characterized by that. A base frame having a pair of front and rear wheels;
An elevating guide frame extending up and down and standing on the base frame;
A lifting body that has a pair of left and right upper rollers and a lower roller and that can be lifted and lowered by being guided by the lifting guide frame;
A pair of left and right wheelchair supports provided on the elevating body and projecting forward to support the lower part of the wheelchair frame;
Drive means provided to be capable of moving up and down the lifting body;
A lifting device for wheelchairs, comprising: a front lifting means capable of tilting upward the front side of the wheelchair supported by the wheelchair support as the lifting body rises,
The front raising means
An elevating guide frame formed linearly in the vertical direction;
A wheelchair support attached to the lifting body with the front end side inclined upward,
In the lifting body is lowermost position, together with the wheelchair support is maintained substantially the same level as the base frame,
Following the upward inclination of the wheelchair support body as the lifting body rises, the front side of the wheelchair is formed so as to be inclined upward.
A lifting device for a wheelchair characterized by that. A base frame having a pair of front and rear wheels;
An elevating guide frame extending up and down and standing on the base frame;
A lifting body that has a pair of left and right upper rollers and a lower roller and that can be lifted and lowered by being guided by the lifting guide frame;
The left and right sides are formed so as to project forward from the lifting body so as to be able to support the running wheel and the lower caster wheel at one side of the wheelchair and whose width is larger than the turning diameter on the plane of the caster wheel. A pair of wheelchair supports;
Drive means provided to be capable of moving up and down the lifting body;
A lifting device for wheelchairs, comprising: a front lifting means capable of tilting upward the front side of the wheelchair supported by the wheelchair support as the lifting body rises,
The front raising means
An elevating guide frame having a forward inclined portion inclined forward on the base end side, and a rear inclined portion extending obliquely rearward and upward from the upper end of the forward inclined portion ;
The upper roller and the lower roller at the lowermost position are each composed of an elevating body that can take the position of the backward inclined portion and the position of the forward inclined portion of the lifting guide frame,
When the elevating body is at the lowest position, the upper roller and the lower roller are respectively located at the rearward tilt position and the forward tilt position of the lift guide frame, and the wheelchair support is held substantially horizontally at the same level as the ground. And
As the elevating body is raised, the upper roller and the lower roller are respectively in the position of the rearward inclined part of the elevating guide frame, and the front end side of the wheelchair support body is formed so as to be inclined upward.
A lifting device for a wheelchair characterized by that. A lifting device for a wheelchair according to any one of claims 1 and 2,
The wheelchair support is provided with a projecting angle variable mechanism that is rotatably attached to the lifting body and can adjust the projecting angle of the wheelchair support.
A lifting device for a wheelchair characterized by that. A lifting device for a wheelchair according to any one of claims 1, 2, and 3,
An interval adjusting mechanism capable of adjusting an interval between the pair of wheelchair supports;
A lifting device for a wheelchair characterized by that.

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