JP5029548B2 - Wheelchair lifting belt - Google Patents

Description

  The present invention includes a pair of left and right wheel support frames and a pair of left and right seat frames connected to the wheel support frame via a link mechanism, and approaches each other while pulling up the left and right seat frames. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair lifting belt configured to be hung on a hook of a suspension device when the wheelchair is configured to be folded by an operation to be folded while the wheelchair is lifted.

Patent document 1 discloses a wheelchair storage device including a lifting belt for a wheelchair related thereto.
The wheelchair storage device is a device for storing the wheelchair on the roof of the passenger car after folding the wheelchair while lifting the wheelchair. As shown in FIGS. 5A and 5B, the wheelchair lifting belt 100 used in the wheelchair storage device is configured such that both ends are connected to a pair of left and right seat frames 102 of the wheelchair. Thus, by lifting the wheelchair by hanging the hook 115 of the lifting device 110 on the lifting belt 100 for the wheelchair, the pair of left and right seat frames 102 approach each other while being pulled upward in the center so that the wheelchair is folded. become.

JP 2000-237238 A

However, because the wheelchair lifting belt 100 is added with the total weight of the wheelchair, both ends of the wheelchair lifting belt 100 are firmly attached to the left and right seat frames 102 as shown in FIG. It is necessary to connect to. For this reason, the connection structure of the lifting belt 100 for the wheelchair and the left and right seat frames 102 is complicated.
Further, since a seat cloth 104 on which a wheelchair user sits is stretched between the left and right seat frames 102, it is necessary to adjust the tension of the wheelchair lifting belt 100 according to the tension of the seat cloth 104. At this time, if the connection structure between the wheelchair lifting belt 100 and the left and right seat frames 102 is complicated, it takes time to adjust the tension.

  The present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is to prevent the total weight of the wheelchair from being added to the folding belt for folding the wheelchair. It is to make it possible to reduce the strength and to easily adjust the tension.

The above-described problems are solved by the inventions of the claims.
The invention of claim 1 comprises a pair of left and right wheel support frames and a pair of left and right seat frames connected to the wheel support frame via a link mechanism, while pulling up the left and right seat frames. In a wheelchair configured to be folded by the action of approaching each other, a lifting belt for a wheelchair configured to be hung on a hook of a lifting device when the wheelchair is folded while supporting the left and right wheel support frames In the state, there is a main body belt that is hung on the hook of the suspension device, and a folding belt that allows the left and right seat frames to be close to each other while pulling up, and both ends of the folding belt are connected to the main body belt When the main body belt is lifted by the suspension device, both ends of the folding belt are pulled by the main body belt. , Characterized in that it is configured to approach each other while pulling up the seat frame.

According to the present invention, both ends of the folding belt are connected to the main body belt, and when the main body belt is lifted by the suspension device, both ends of the folding belt are pulled by the main body belt, and the seat frame is It is the structure which makes it mutually approach while pulling up. That is, the weight of the wheelchair is mainly applied to the main body belt that supports the left and right wheel support frames, and only the tension necessary for folding the wheelchair is applied to the folding belt.
For this reason, the strength of the folding belt and the strength of the connecting portion can be reduced as compared with the conventional case, and the tension of the folding belt can be easily adjusted with a simple configuration.

According to the invention of claim 2, the length of the main body belt and the folding belt is adjustable.
For this reason, when the main body belt is lifted by the suspension device, the timing at which the folding belt pulls up the seat frame can be adjusted.

According to the invention of claim 3, in the folding belt, one belt piece and the other belt piece are used for the left and right seats by aligning one surface of the other belt piece with one surface of one belt piece. The structure is characterized in that the frame is joined with a strength capable of being pulled up.
For this reason, tension adjustment of the folding belt is facilitated.

According to the invention of claim 4, the main body belt is passed through the position shift prevention member that prevents the main body belt from being displaced in the front-rear direction of the wheelchair with respect to the wheel support frame. It is comprised so that it can support.
For this reason, the main body belt is not displaced in the front-rear direction of the wheelchair with respect to the wheel support frame, and the wheelchair can be lifted stably.

  According to the present invention, since the total weight of the wheelchair is not added to the folding belt for folding the wheelchair, the strength of the folding belt can be reduced, and the tension of the folding belt can be easily adjusted with a simple configuration.

[Embodiment 1]
The wheelchair lifting belt according to Embodiment 1 of the present invention will be described below with reference to FIGS. The wheelchair lifting belt according to the present embodiment is a belt that is used in a wheelchair storage device that is stored on the roof of a passenger car after the wheelchair is folded while being lifted. Here, FIGS. 1 and 2 are a rear view and a partially broken perspective view showing a state where the wheelchair is lifted using the wheelchair lifting belt, and FIG. 3 is a wheelchair equipped with the wheelchair lifting belt. It is a rear view showing a state. FIG. 4 is an overall perspective view of the wheelchair lifting belt (FIG. A) and an arrow B view of FIG.
In addition, front and rear, left and right and up and down in the figure correspond to front and rear, left and right and up and down of the wheelchair.

<About the wheelchair 10 overview>
Before describing the wheelchair lifting belt 30 according to the present embodiment, an outline of the wheelchair 10 will be described with reference to FIG.
The wheelchair 10 includes a pair of left and right wheel support frames 12 that support the front wheel 15 and the rear wheel 14. The wheel support frame 12 is formed in a substantially rectangular frame shape by an upper tube portion 12u that is bent into a substantially L shape and a lower tube portion 12d that is also bent into a substantially L shape. The rear portion of the horizontal portion of the upper tube portion 12u and the rear portion of the horizontal portion of the lower tube portion 12d are connected to each other by the vertical tube portion 12t.
A vertical tube portion 12z of the lower tube portion 12d protrudes upward at the rear end of the wheel support frame 12, and a handrail portion 13 is attached to the protruding end of the vertical tube portion 12z.

As shown in FIGS. 1 and 3, the left and right lower ends of the link mechanism 25 formed in an X shape are connected to the lower pipe portions 12 d of the left and right wheel support frames 12, respectively. The link mechanism 25 is a mechanism that connects the left and right wheel support frames 12 and the left and right seat frames 21 so as to be folded in the width direction, and includes a linear first link 25a and a second link 25b. ing. The first link 25a and the second link 25b intersect each other in an X shape, and the intersecting portion is connected to each other by a rotation center shaft 25c so as to be rotatable with respect to each other. The upper ends of the first link 25 a and the second link 25 b of the link mechanism 25 are connected to the left and right seat frames 21.
The left and right seat frames 21 are straight tubular frames that support a seat cloth 23 on which a wheelchair user is seated from both left and right sides, and the left and right seat frames 21 are positioned parallel to each other.

With the above configuration, as shown in FIG. 3, when a force in the direction of expanding the width is applied to the left and right wheel support frames 12 and the left and right seat frames 21, the right and left seat frames are operated by the link mechanism 25. 21 descends. When the left and right seat frames 21 are lowered to the lower limit position supported by the upper pipe portions 12u of the left and right wheel support frames 12, the width dimensions of the left and right seat frames 21 are maximized, and the seat cloth 23 is flattened. It is held in an extended state. This state is the use state of the wheelchair 10.
As shown in FIG. 1, when the left and right seat frames 21 are pulled up, the distance between the left and right seat frames 21 and the left and right wheel support frames 12 is reduced by the link mechanism 25. When the left and right seat frames 21 are pulled up to the upper limit position, the width of the wheelchair 10 is minimized. This state is the folded state of the wheelchair 10.
FIG. 1 shows a state in the middle of folding the wheelchair 10.

<About wheelchair lifting belt 30>
The wheelchair lifting belt 30 is a belt used when the wheelchair 10 is lifted by a lifting device (not shown) of the wheelchair storage device, and is configured to fold the wheelchair 10 in the process of lifting the wheelchair 10. .
The wheelchair lifting belt 30 includes a main body belt 32 and a folding belt 36 as shown in FIG. The main body belt 32 surrounds the left and right wheel support frames 12 of the wheelchair 10 and is a belt that is hung on a hook (not shown) of the suspension device while supporting the entire wheel support frame 12. The main body belt 32 is a belt having a predetermined length, and is configured such that one end side 32e is connected to the first engagement piece 33 and the other end side 32x is hooked on the second engagement piece 34. The main body belt 32 is formed in a ring shape by engaging the first engagement piece 33 on one end side 32e of the main body belt 32 with the second engagement piece 34 on the other end side.
As shown in FIG. 1 and the like, the main body belt 32 is attached to the wheelchair 10 so that the first engagement piece 33 and the second engagement piece 34 are on the lower side, and the upper end portion of the main body belt 32 (both engagement pieces). 33, 34) is configured to be hung on a hook (not shown) of the suspension device.

The first engagement piece 33 is a metal fitting formed in a substantially square frame shape, and as shown in FIG. 4B, one end 32e of the main body belt 32 is formed in a ring shape on one side of the first engagement piece 33. The first engagement piece 33 is connected to the one end side 32e of the main body belt 32 by winding and sewing the front end of the main body belt 32 and the vicinity of the front end.
The second engagement piece 34 is a metal fitting formed in a substantially square frame shape like the first engagement piece 33, and passes through the opening of the first engagement piece 33 on one side of the second engagement piece 34. The other end side 32x of the main body belt 32 is hung. Then, the other end side 32x of the main body belt 32 that is folded on one side of the second engagement piece 34 is passed from the opposite side to the opening of the first engagement piece 33, and the first engagement piece 33. Thereby, when tension is applied to the main body belt 32, the first engaging piece 33 and the second engaging piece 34 are engaged, and the main body belt 32 is held in a ring shape.
When adjusting the size of the ring of the main body belt 32, the folding position of the other end side 32x of the main body belt 32 that is hung on one side of the second engagement piece 34 in a state where no tension is applied to the main body belt 32 is set. adjust.

  When the wheelchair 10 is lifted by the suspension device via the body belt 32, the folding belt 36 is brought close to each other while pulling up the left and right seat frames 21 of the wheelchair 10 as shown in FIG. A belt for folding the wheelchair 10. As shown in FIG. 1 and the like, the folding belt 36 includes a first belt piece 37 for lifting the left seat frame 21 and a second belt piece 38 for lifting the right seat frame 21. ing. The base end portion 37m of the first belt piece 37 and the base end portion 38m of the second belt piece 38 are sewn at predetermined positions on the inner wall surface of the main body belt 32, as shown in FIG. In addition, a large number of fine rings (not shown) are formed at the front end portion of the first belt piece 37 by thin fibers on the lower surface 37d side. On the other hand, many needle-like flexible resins (not shown) that are thin and short on the upper surface 38u side are implanted at the front end portion of the second belt piece 38 substantially perpendicularly to the upper surface 38u. The tip of the needle-like flexible resin is curved like a bowl.

Thereby, the lower surface 37d of the front end portion of the first belt piece 37 and the upper surface 38u of the front end portion of the second belt piece 38 are pressed together so that a large number of fine rings on the first belt piece 37 side and the second belt A large number of needle-like flexible resins on the belt piece 38 side are engaged, and the tip portion of the first belt piece 37 and the tip portion of the second belt piece 38 are connected in an overlapping state. Further, the first belt piece is peeled off from the tip portion of the first belt piece 37 with a force greater than the engagement force between the many needle-like flexible resins and the many fine rings. 37 and the second belt piece 38 can be disconnected.
In this manner, since the first belt piece 37 and the second belt piece 38 can be connected by overlapping the tip portion of the first belt piece 37 and the tip portion of the second belt piece 38, the overlapping range of both 37, 38. By changing the length, the length of the folding belt 36 can be easily adjusted.

<Attaching the wheelchair lifting belt 30>
When attaching the wheelchair lifting belt 30 to the wheelchair 10, first, the engagement between the first engagement piece 33 and the second engagement piece 34 of the main body belt 32 is released, and the first belt piece 37 of the folding belt 36 is released. And the second belt piece 38 are disconnected. In this state, as shown in FIG. 3, the body belt 32 of the wheelchair lifting belt 30 is set so as to surround the left and right wheel support frames 12 and the seat frame 21 in the wheelchair 10 in use. Here, as shown in FIGS. 2 (A) to 2 (C), the wheel support frame 12 and the seat frame 21 have a positional shift that prevents the positional shift of the main body belt 32 in the longitudinal direction at a predetermined position in the longitudinal direction. A prevention member 41 is attached. As shown in FIG. 2 (C), the misalignment prevention member 41 is a plate-like member having a substantially trapezoidal planar shape, and is bolted to the outer peripheral surface of the wheel support frame 12 or the like. It is comprised so that the clearance gap which allows the main body belt 32 to pass between outer peripheral surfaces can be formed.

That is, the main body belt 32 is set so as to surround the left and right wheel support frames 12 and the seat frame 21 while being passed through a gap by the misalignment prevention member 41. Then, by engaging the first engagement piece 33 and the second engagement piece 34 of the main body belt 32, the attachment of the main body belt 32 is completed. At this time, by adjusting the length of the main body belt 32 at the second engaging piece 34, the tension of the main body belt 32 with respect to the seat cloth 23 between the left and right seat frames 21 is adjusted.
Next, the leading end of the first belt piece 37 and the leading end of the second belt piece 38 of the folding belt 36 so that the folding belt 36 comes into contact with the left and right seat frames 21 from below with no slack. Join with the part overlapped. In this state, the attachment of the wheelchair lifting belt 30 is completed.
With the above configuration, when the hook of the suspension device is hooked on the upper end portion of the main body belt 32 of the wheelchair lifting belt 30 and the main body belt 32 is pulled up, the wheel support frame 12 of the wheelchair 10 is lowered from below by the main body belt 32. It is stably lifted in a supported state. Further, the both ends of the folding belt 36 are pulled upward by the body belt 32, whereby the left and right seat frames 21 of the wheelchair 10 are pulled up by the folding belt 36 and approach each other as shown in FIG. That is, the wheelchair 10 is folded in the process of lifting the wheelchair 10.

<Advantages of Wheelchair Lifting Belt 30 according to this Embodiment>
According to the wheelchair lifting belt 30 according to the present embodiment, both ends of the folding belt 36 are connected to the body belt 32, and when the body belt 32 is lifted by the suspension device, both ends of the folding belt 36 are Pulled by the main body belt 32, the left and right seat frames 21 are brought close to each other while being pulled up. That is, the weight of the wheelchair 10 is mainly applied to the main body belt 32 that supports the left and right wheel support frames 12, and only the tension necessary for folding the wheelchair 10 is applied to the folding belt 36.
For this reason, the strength of the folding belt 36 and the strength of the connecting portion can be reduced as compared with the prior art, and the tension of the folding belt 36 can be easily adjusted with a simple configuration.

Further, since the length of the main body belt 32 and the folding belt 36 is adjustable, the timing at which the folding belt 36 pulls up the seat frame 21 can be adjusted when the main body belt 32 is lifted by the suspension device. become.
Further, the folding belt 36 has the upper surface 38u of the second belt piece 38 aligned with the lower surface 37d of the first belt piece 37, so that the first belt piece 37 and the second belt piece 38 are used for the left and right seats. Since the frame 21 is joined with a strength capable of being pulled up, the tension adjustment of the folding belt 36 is facilitated.
Further, since the main body belt 32 is configured to be able to support the wheel support frame 12 in a state where the main body belt 32 is passed through the position shift prevention member 41, the main body belt 32 is in the front-rear direction of the wheelchair 10 with respect to the wheel support frame 12. The wheelchair 10 can be lifted stably without being displaced.

<Example of change>
In addition, this invention is not limited to the said embodiment, The change in the range which does not deviate from the summary of this invention is possible. For example, in the present embodiment, an example is shown in which the first belt piece 37 and the second belt piece 38 of the folding belt 36 are connected by the engagement action of a large number of needle-shaped flexible resins and a large number of fine rings. However, for example, a configuration in which the two are connected using the attractive force of the magnet is also possible.
Moreover, although the example which sets the main body belt 32 so that the lower side pipe part 12d of the wheel support frame 12 may be supported from the downward direction was shown, the main body belt 32 so that the upper side pipe part 12u may be supported instead of the lower side pipe part 12d. It is also possible to set the Thereby, the main body belt 32 can be shortened.

It is a rear view showing a mode that a wheelchair is lifted using the wheelchair lifting belt which concerns on Embodiment 1 of this invention. A partially broken perspective view (A view) showing a state where the wheelchair is lifted using the wheelchair lifting belt, a side view (B view) of the position shift prevention member, and a plan view (C view) of the position shift prevention member It is. It is a rear view showing the state where the wheelchair provided with the wheelchair lifting belt is used. FIG. 2 is an overall perspective view (A diagram) of a wheelchair lifting belt, and a B arrow view (B diagram) of FIG. It is the side view (A figure) showing a mode that a wheelchair is lifted using the conventional belt for raising a wheelchair, a rear view (B figure), and the schematic diagram (C figure) of a wheelchair lifting belt.

Explanation of symbols

10. Wheelchair 12 ... Wheel support frame 21 ... Seat frame 23 ... Seat cushion 25 ... Link mechanism 30 ... Wheelchair lifting belt 32 ... · Body belt 36 ··· Folding belt 37 ··· First belt piece 38 ··· Second belt piece 41 ··· Misalignment prevention member

Claims (4)

A pair of left and right wheel support frames, and a pair of left and right seat frames connected to the wheel support frame via a link mechanism, and can be folded by moving the left and right seat frames close together In the wheelchair configured as described above, when the wheelchair is folded while being lifted, a lifting belt for a wheelchair configured to be hung on a hook of a lifting device,
A body belt that is hung on a hook of the suspension device in a state of supporting the left and right wheel support frames,
A folding belt that brings the left and right seat frames up close to each other while pulling up,
Both ends of the folding belt are connected to the main body belt, and when the main body belt is lifted by the suspension device, both ends of the folding belt are pulled by the main body belt while pulling up the seat frame. A wheelchair lifting belt characterized by being configured to approach each other. The wheelchair lifting belt according to claim 1,
The wheelchair lifting belt is characterized in that the main body belt and the folding belt can be adjusted in length. A belt for lifting a wheelchair according to claim 2,
The folding belt has a strength that allows one belt piece and the other belt piece to pull up the left and right seat frames by aligning one surface of the other belt piece with one surface of one belt piece. A belt for lifting a wheelchair characterized by being joined. A wheelchair lifting belt according to any one of claims 1 to 3,
The main body belt is configured to be able to support the wheel support frame in a state where the main body belt is passed through a position shift prevention member that prevents the wheel support frame from shifting in the front-rear direction of the wheelchair. A belt for lifting a wheelchair characterized by being made.

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