JP2010273745A - Wheelchair backward reclining device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair backward reclining device capable of reducing fatigue and the body pressure of a user by allowing the user using the wheelchair everyday to take a reclining posture while seated on the usually using wheelchair. <P>SOLUTION: The wheelchair backward reclining device can be used by the user while seated on the usually using wheelchair, and the user can keep the reclining posture at an optionally selected angle by backward reclining a bottom board and a backrest of the wheelchair together with the wheelchair by operating a switch (a control part) disposed under the user's hand. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an apparatus for tilting a wheelchair backward.

If a user who lives in a wheelchair has been in the wheelchair for a long time, fatigue may accumulate on the back, hips and buttocks. In particular, users with severe disabilities in the upper limbs are unable to push-up on their own (supporting the wheelchair with both arms to lift their bodies and lifting the buttocks to disperse body pressure), but the butt is displaced There is a case where it will be in the state of (jukuso). Furthermore, users with severe disabilities in the upper limbs cannot easily transfer to a bed or sofa temporarily on their own to reduce fatigue and distribute body pressure. Therefore, there is a case where the time for getting on the wheelchair is limited due to anxiety about fatigue and bedsores. Thus, as disclosed in Patent Document 1 and Patent Document 2, many reclining wheelchairs have been developed that tilt the backrest of the wheelchair backward to restore fatigue and distribute body pressure.

JP 2006-246990 A JP 11-155908 A

However, reclining-type wheelchairs as disclosed in Patent Document 1 and Patent Document 2 are assumed to be operated by an assistant and cannot be operated by a user alone. In addition, the reclining wheelchairs disclosed in Patent Document 1 and Patent Document 2 have a reclining function and thus increase in weight, resulting in lower mobility than light weight wheelchairs that are widely used. There is a case. In addition, since the reclining function is installed, the structure of the wheelchair itself may be complicated, and maintenance may be complicated. Furthermore, the reclining wheelchairs disclosed in Patent Document 1 and Patent Document 2 have larger outer dimensions such as a backrest portion than the popular lightweight wheelchairs. Handling may be inconvenient, such as loading. Therefore, the present invention can be used as it is in a wheelchair that is used daily by users, and can be easily operated independently without the help of others, recovery from fatigue, prevention of bedsores due to dispersion of body pressure, It is an object of the present invention to provide a wheelchair backward tilting device for the purpose of reducing the symptoms of orthostatic hypotension seen in the early stage of injury of an injured patient.

In order to solve the above problems, the wheelchair rearward tilt device according to the present invention includes a bottom plate portion on which the wheelchair is placed, a backrest portion against which a user's back is applied, a driving means for tilting the bottom plate portion and the backrest portion backward, A control unit for controlling the operation of the driving means, and the user operates the control unit to tilt the bottom plate part and the backrest part together with the wheelchair using the driving means, at an arbitrary angle. It is characterized by being configured to hold a reclining posture.

According to such a configuration, the user can get on the wheelchair that the user uses everyday. Therefore, it is not necessary to transfer to another wheelchair, equipment, or facility. Furthermore, according to such a structure, the said drive means can incline the said baseplate part and the said backrest part with a wheelchair back by operating the said control part. Therefore, the posture of the user reclining together with the wheelchair can be held at an arbitrary angle.

Further, the present invention has been made to solve the above-described problem, and the bottom plate portion rotates while always contacting the ground when the bottom plate portion and the backrest portion are tilted backward. Yes.

According to such a configuration, the user can be tilted together with the wheelchair while the bottom plate portion curved in an arc shape moves smoothly. Therefore, the operation when tilting becomes stable, and the anxiety when the user takes a reclining posture is reduced.

In addition, the present invention has been made to solve the above problems, and the rear wheel of the wheelchair always rotates while contacting the floor surface when the bottom plate portion and the backrest portion tilt backward. It is said.

According to such a configuration, the user can be tilted together with the wheelchair while the rear wheel of the wheelchair moves smoothly. Therefore, the operation when tilting becomes stable, and the anxiety when the user takes a reclining posture is reduced.

Moreover, this invention is made | formed in order to solve the said subject, The said control part is provided in the range which the said user can reach, It is characterized by the above-mentioned.

According to such a configuration, the user can easily operate the control unit. Therefore, the user can take a reclining posture independently without helping others.

Further, the present invention has been made to solve the above-mentioned problem, wherein the control unit drives the driving means to tilt the bottom plate part and the backrest part at an arbitrary angle. Yes.

According to such a configuration, the user can set the reclining posture at an arbitrary angle. Therefore, the user can maintain a reclining posture at a comfortable angle.

In addition, the present invention has been made to solve the above-described problems, and is characterized in that an elastic member is provided on the backrest portion.

According to such a configuration, when the user is tilted to a deep angle, there is no fear that the user's back hits a hard member and feels pain. Accordingly, the user can comfortably hold the reclining posture.

Moreover, this invention is made | formed in order to solve the said subject, The armrest part is provided in the said backrest part, It is characterized by the above-mentioned.

According to such a configuration, since the user's arm can be supported by the arm rest portion when tilted to a deep angle, there is no possibility of hanging down backward. Therefore, the user can hold the reclining posture with peace of mind.

In addition, the present invention has been made to solve the above-described problems, and is characterized in that the driving means can be used with a household power source.

According to such a configuration, the wheelchair rearward tilting device can be used anywhere where there is an outlet. Therefore, the place where the user takes a reclining posture is hardly restricted.

According to the present invention described above, a bed slip caused by fatigue recovery or body pressure dispersion can be easily used alone at home, in a hospital, or in a rehabilitation facility, in a wheelchair used daily by a user living in a wheelchair. Can prevent or reduce the symptoms of orthostatic hypotension. Therefore, since it is possible to live in a wheelchair for a long time, an effect of improving the quality of life (QOL) of a user living in a wheelchair can be obtained.

The side view of the Example of the wheelchair back tilting apparatus of 1st embodiment. The side view of the state which tilted the wheelchair back tilting apparatus of 1st embodiment. The front view of the wheelchair back tilting device of a first embodiment. The rear view of the wheelchair back tilting device of a first embodiment. The top view of the Example of the wheelchair back tilting apparatus of 1st embodiment. The side view of the Example of the wheelchair back tilting apparatus of 2nd embodiment. The side view of the state which tilted the wheelchair back tilting apparatus of 2nd embodiment. The front view of the wheelchair back tilting apparatus of 2nd embodiment. The rear view of the wheelchair back tilting device of a second embodiment. The top view of the Example of the wheelchair back tilting apparatus of 2nd embodiment. The control system figure of a wheelchair back tilting apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<First embodiment>
FIG. 1 is a side view of a wheelchair rearward tilt device according to the present invention. FIG. 2 is a side view showing a state in which the wheelchair rearward tilting device of FIG. 1 is tilted. FIG. 3 is a front view of the wheelchair rearward tilting device. FIG. 4 is a rear view of the wheelchair rearward tilting device. FIG. 5 is a top view of the wheelchair rearward tilting device. FIG. 11 is a control system diagram of the wheelchair rearward tilting device.

As shown in FIG. 1 to FIG. 5 and FIG. 11, the wheelchair rearward tilting device 1 according to this embodiment includes a bottom plate portion 2 on which a wheelchair is placed, a backrest portion 3 on which a user hits his back, a bottom plate portion 2 and a backrest portion. 3 is configured using a drive unit 6 for tilting 3 backward and a control unit 7 for controlling the movement of the drive unit 6.

The bottom plate portion 2 includes a flat portion on which a front wheel of a wheelchair is placed and a portion curved in an arc shape on which a rear wheel is placed. Further, the side plate portion 4 is joined to the side surface of the bottom plate portion 2 curved in an arc shape, and the bottom plate portion 2 and the side plate portion 4 are configured in a bucket shape.

The backrest part 3 is provided with a resilient member 3-1 at the front part where the back of the user hits. As the elastic member 3-1, low resilience urethane, sponge, or the like is used. Also, arm rests 3-2 are provided on both sides of the backrest 3.

The arcuate portion of the rear portion of the bottom plate portion 2 and the backrest portion 3 are joined. The back part of the backrest part 3 and the upper end of the drive means 6 are connected.

Side plate shafts 4-1 are provided on both outer sides of the side plate portion 4, and an outer frame portion 5 is attached to the side plate shaft 4-1 in parallel with the side surface of the side plate portion 4. The bottom plate portion 2 supported by the outer frame portion 5 is configured to rotate like a rocking chair around the side plate axis 4-1.

Wheels 5-1 are attached to the four corners of the outer frame portion 5. The drive means support frame 5-2 is joined to the rear end portion of the outer frame portion 5. The outer frame portion 5 is formed in a U shape when viewed from above.

The lower end of the drive means 6 is connected to the central portion of the drive means support frame 5-2, and the upper end of the drive means 6 is connected to the back surface portion of the backrest portion 3.

As the driving means 6, for example, an electric cylinder that can be used with a household power source is used.

The control unit 7 is provided on the left side of the side plate unit 4 within the reach of the user's hand. However, the control unit 7 may be provided on the right side of the side plate unit 4. Moreover, the control part 7 is comprised by the structure which tilts and operates a rod-shaped switch so that the user with a serious disorder | damage | failure in an upper limb can operate using a palm or a wrist.

The wheelchair rearward tilting device 1 according to the present embodiment is configured as described above, and functions as follows based on this configuration.

On the bottom plate 2, the user gets behind the wheelchair and operates the control unit 7 provided within the reach of the user.

The control part 7 drives the drive means 6 to tilt the bottom plate part 2 and the backrest part 3 to an arbitrary angle. In the present embodiment, the bottom plate portion 2 and the backrest portion 3 are tilted at an angle of 45 degrees with respect to the vertical, but this tilt angle is normally in the range of 20 degrees to 70 degrees, but 30 degrees to 60 degrees. Degree is a preferred angle, and an angle of 40 to 60 degrees is most preferred. Note that if the tilt angle is 20 degrees or less, the effect when the reclining posture is taken is weak, and if the tilt angle is 70 degrees or more, the user may feel a fear of falling.

The driving means 6 tilts the bottom plate part 2 and the backrest part 3 backward together with the wheelchair or returns it to the original position.

Since the bottom plate portion 2 curved in an arc shape is always rotated while being in contact with the floor surface, the operation when the bottom plate portion 2 and the backrest portion 3 are tilted backward is stabilized.

The elastic member 3-1 provided in the front portion of the backrest 3 protects the user's back when tilted. Moreover, the arm rests 3-2 provided on both sides of the backrest 3 support the user's arm so that the user's arm does not droop backward when tilted.

Since the wheelchair rearward tilting device 1 according to the present embodiment is configured and functions as described above, the following effects can be obtained.

A user who lives in a wheelchair can get in the wheelchair that is used everyday. By operating the control unit 7 provided in a reachable range, the driving means 6 can be used to tilt the wheelchair backward. That is, the user can easily take a reclining posture alone. By adopting a reclining posture, it is possible to recover the user's fatigue, prevent bed slips due to dispersion of body pressure, and reduce the symptoms of orthostatic hypotension. Therefore, since it becomes possible to ride in a wheelchair for a long time, it is possible to obtain an effect of improving the quality of life (QOL) of a user living in a wheelchair such as a hospital or a rehabilitation facility as well as a home. .

<Second embodiment>
Next, a second embodiment of the present invention will be specifically described with reference to the drawings.

FIG. 6 is a side view of the wheelchair rearward tilt device according to the present invention. FIG. 7 is a side view showing a state in which the wheelchair rearward tilting device in FIG. 6 is tilted. FIG. 8 is a front view of the wheelchair rearward tilting device. FIG. 9 is a rear view of the wheelchair rearward tilting device. FIG. 10 is a top view of the wheelchair rearward tilting device. FIG. 11 is a control system diagram of the wheelchair rearward tilting device.

As shown in FIGS. 6 to 11, the wheelchair rearward tilting device 1 according to the present embodiment includes a bottom plate portion 2 on which a front wheel of the wheelchair is placed, a backrest portion 3 on which a user hits his back, a bottom plate portion 2 and a backrest portion 3. The driving means 6 for tilting the rear side and the control unit 7 for controlling the movement of the driving means 6 are used.

The bottom plate portion 2 includes a flat front portion on which a front wheel of the wheelchair is placed and a rear portion that joins the backrest portion 3 through a pair of rear wheels of the wheelchair.

The backrest part 3 is provided with a resilient member 3-1 at the front part where the back of the user hits. As the elastic member 3-1, for example, low-resilience urethane, sponge, or the like is used. Also, arm rests 3-2 are provided on both sides of the backrest 3.

The rear part of the bottom plate part 2 and the lower part of the backrest part 3 are joined. A driving means 6 is connected to a central portion where the bottom plate portion 2 and the backrest portion 3 are joined.

As the driving means 6, for example, an electric motor that can be used with a household power source is used.

The control unit 7 extends from the rear left side of the backrest unit 3 to the front, and is provided within a reach of the user's hand. However, the control unit 7 may be provided to extend from the right rear side of the backrest unit 3. Moreover, the control part 7 is comprised by the structure which tilts and operates a rod-shaped switch so that the user with a serious disorder | damage | failure in an upper limb can operate using a palm or a wrist.

The wheelchair rearward tilting device 1 according to the present embodiment is configured as described above, and functions as follows based on this configuration.

On the bottom plate 2, the user gets behind the wheelchair and operates the control unit 7 provided within the reach of the user.

The control part 7 drives the drive means 6 to tilt the bottom plate part 2 and the backrest part 3 to an arbitrary angle. In the present embodiment, the bottom plate portion 2 and the backrest portion 3 are tilted at an angle of 45 degrees with respect to the vertical, but this tilt angle is normally in the range of 20 degrees to 70 degrees, but 30 degrees to 60 degrees. Degree is a preferred angle, and an angle of 40 to 60 degrees is most preferred. Note that if the tilt angle is 20 degrees or less, the effect when the reclining posture is taken is weak, and if the tilt angle is 70 degrees or more, the user may feel a fear of falling.

The driving means 6 tilts the bottom plate part 2 and the backrest part 3 backward together with the wheelchair or returns it to the original position.

Since the rear wheel of the wheelchair always rotates while being in contact with the floor surface, the operation when the bottom plate portion 2 and the backrest portion 3 tilt backward is stabilized.

The elastic member 3-1 provided in the front portion of the backrest 3 protects the user's back when tilted. Moreover, the arm rests 3-2 provided on both sides of the backrest 3 support the user's arm so that the user's arm does not droop backward when tilted.

As described above, although there are some differences in configuration, the wheelchair rearward tilting device 1 according to the present embodiment has the same function as the first embodiment. Therefore, the wheelchair backward tilting device 1 according to the present embodiment can obtain all the effects described in the first embodiment.

It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications as necessary within the scope that can be adapted to the gist of the present invention. It is included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Wheelchair back tilting apparatus 2 Bottom plate part 3 Backrest part 3-1 Elastic member 3-2 Arm rest part 4 Side plate part 4-1 Side plate axis 5 Outer frame part 5-1 Wheel 5-2 Drive means support frame 6 Drive Means 7 Control unit

Claims (3)

A bottom plate portion on which a wheelchair is placed; a backrest portion on which a user's back is applied; a drive unit that tilts the bottom plate portion and the backrest portion backward; and a control unit that controls driving of the drive unit. A wheelchair configured to operate a control unit and to tilt the bottom plate part and the backrest part together with the wheelchair using the driving means so as to hold the reclining posture at an arbitrary angle. Back tilt device. The wheelchair rearward tilt device according to claim 1, wherein the bottom plate portion rotates while always contacting the floor surface when the bottom plate portion and the backrest portion tilt backward. The wheelchair rearward tilting device according to claim 1, wherein the wheelchair rear wheel rotates while always contacting the floor when the bottom plate portion and the backrest portion tilt backward.