JPH10118122A - Multi-function wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely execute lying, reclining and moving from a bed and to go to a tiolet, etc., by means of a wheelchair by pivotally supporting a back frame and permitting the back rest frame and a leg part lifting-up part to be vertically moved by means of the lift-up operation of link fixture which pivotally supports the back rest frame in configuration. SOLUTION: A link-type jack is used in a lifting device 5 and a pipe 16 penetrating a shaft 17 fitted in the lower part of the back rest frame 1 is connected to the pipe 16 which loosely penetrates the shaft 17 fitted in the upper part of auxiliary legs 2 with wheels. Then, the link device constituted of the back rest 1, the auxiliary legs 2 with the wheels, a support link 4 and the link 3 for a leg lift-up part is operated. The support link 4 holds the auxiliary legs 2 with the wheels when the back rest frame 1 is lowered. The link 3 for the leg lift-up part is provided between a toilet seat arrangement frame 19 and a wheel fitting frame 21 so as to prevent a hindrance. Then, a person can go to the toilet by a multi-function wheelchair up to the toilet seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair for nursing care, and more particularly to a reclining device for a backrest and a safety mechanism.

[0002]

2. Description of the Related Art Conventionally, means for raising and lowering a backrest of a wheelchair include a ratchet mechanism, a reduction gear device, and a frame and a backrest frame constituting a wheelchair. There are known ones in which a trapezoidal screw is turned with a handle and used as a jack, and one in which a hydraulic device is used.

[0003]

All of those described in the prior art have been deployed in the upper part of a narrow wheelchair supported by four or three wheels, so the more the backrest tilts, There was a risk that the center of gravity would move backwards and fall with the user.

[0004] In addition, when used for nursing care, the conventional one is not in a stretcher shape but in a chair shape. Therefore, when a bedridden person is put on a wheelchair, holding or moving mechanical equipment is required. However, it is very hard work and time-consuming, and as a result, it is not possible to provide sufficient nursing care, and people who are still bedridden are increasing, which has become a social problem.

In addition, when the toilet seat is attached to a wheelchair and the user enters the toilet with the wheelchair, the reclining device described above is too large or too long, and is caught by the toilet and obstructed.

[0006] The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to allow the backrest and leg lifting portion of a wheelchair to move up and down sufficiently to ensure safety. The aim is to provide a multi-function wheelchair for nursing care, which allows the patient to lean and sleep, move easily from a bed, and enter a restroom / bathroom in a wheelchair.

[0007]

In order to achieve the above object, a multifunctional wheelchair according to the present invention comprises a frame constituting a wheelchair, wherein a backrest frame is pivoted, and the auxiliary leg with wheels pivotally mounted on the backrest frame. A link device including a link and a support link for a leg lifting portion, wherein the link device is operated by the lifting device.

The backrest frame and the auxiliary legs with wheels are each provided with a shaft through which a pipe is inserted, and the pipe and the pipe are connected by a lifting device.

In order to facilitate turning of a wheelchair,
Free casters are used for the rear wheels and the wheels of the auxiliary legs with wheels.Attachment of the support link for the purpose of individually identifying the backrest frame and the auxiliary legs with wheels. An auxiliary leg storage part with wheels is formed below the support link for individualizing the legs.

Further, in order to lift the leg lifting portion, a link for the leg lifting portion which is pivotally mounted on a lower portion of the backrest frame and a link device which is pivotally mounted on the leg lifting portion are formed. The part link penetrates between the toilet seat setting frame and the wheel mounting frame.

[0011]

[Function] By applying the stopper of the front wheel and extending the lifting device, the auxiliary legs with wheels open and retreat, and at the same time as the backrest frame goes down, the link for the leg lifting part also moves to lift the leg. Push up the part.

When the backrest frame is horizontal, the leg lifting portion is also horizontal, and the support link is
Holding the retracted auxiliary legs with wheels, and aligning the leg lifting part, toilet seat installation frame, backrest frame,
The front wheels, rear wheels, and auxiliary legs with wheels support it.

[0013] Also, by retracting the lifting device,
When the auxiliary legs with wheels move forward and push up the backrest frame, the link for the leg lifting part also moves, lowers the leg lifting part, and when the backrest frame rises, the auxiliary legs with wheels are formed under the support link. Stored in the auxiliary leg storage unit with wheels.

[0014]

An embodiment will be described with reference to the drawings. In FIG. 1 to FIG. 3, the material of the parts constituting the multi-function wheelchair is stainless steel for all metal parts, and synthetic resin or FRP is used for the backrest, armrest, toilet seat, and leg lifting parts. It may be corrosive, and the backrest may use mesh-like chemical fibers for bathing.

As the lifting device, a link jack composed of a right-hand screw and a left-hand screw of a trapezoidal screw was used. The pipe was loosely mounted on a shaft attached to a lower portion of a backrest frame and was attached to an upper portion of an auxiliary leg with wheels. The pipe which passes through the shaft is connected by this link type jack, and a link device composed of a backrest frame, an auxiliary leg with wheels, a support link, and a link for a leg lifting portion is operated. In more detail, due to the structure of the link type jack, even if the handle is attached and turned, the position of the handle attachment part only moves parallel to the side of the backrest frame, so the backrest frame of the multifunctional wheelchair can be moved from either the left or right side It can be moved up and down, and its speed is fast.

A supporting link pivotally attached to the wheel-mounted auxiliary leg and the wheel mounting frame fixes the backrest frame and the wheeled auxiliary leg, and can hold the wheeled auxiliary leg when the backrest frame is lowered. In addition, the link for the leg lifting part pivoted on the lower part of the backrest frame is between the toilet seat installation frame and the wheel mounting frame so that it does not get in the way when entering the toilet in the multifunctional wheelchair and entering the toilet. It is desirable to penetrate. And, the armrests should be flipped up and run along the side of the backrest frame, and when the multi-function wheelchair becomes a stretcher-like shape, a fall prevention fence should be placed at the bottom of the armrests to prevent it from falling sideways. It may be attached to the side of the toilet seat setting frame.

[0017]

Since the present invention is configured as described above, the following effects can be obtained.

In the multifunctional wheelchair according to the present invention, a link device is constituted by a backrest frame mounted on the shaft, an auxiliary leg with wheels mounted on the backrest frame, a link for a leg lifting portion, and a support link. By installing and operating the lifting device in a part of the device, all the movable parts are operated, so that it is efficient and simple.

In the multifunctional wheelchair according to the second aspect, the wheelchair is supported by the front wheels, the rear wheels, and the auxiliary legs with wheels, so that the shaft attaching portion of the backrest frame is operated during the operation of the backrest frame by the link device. To prevent bending,
In addition, since the auxiliary leg with wheels moves rearward, the backrest frame is stable and safe.

By using a link jack composed of a right-hand screw and a left-hand screw of a trapezoidal screw for the lifting device of the link device, the handle mounting portions can be installed at both ends due to its structure, and a multifunctional wheelchair can be provided. Can be operated with steering wheel from either left or right.

[Brief description of the drawings]

FIG. 1 is a wheelchair-like side view of a multi-function wheelchair.

FIG. 2 is a front view of a link type jack.

FIG. 3 is a side view of a stretcher-like multifunctional wheelchair.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Backrest frame 2 Auxiliary leg with wheels 3 Link for leg lifting part 4 Support link 5 Lifting device 6 Leg lifting part 7 Front wheel 8 Rear wheel 9 Right trapezoidal screw 10 Left trapezoidal screw 11 Handle mounting part 12 Link type jack 13 Manual pushing Part 14 Handle 15 Stopper 16 Pipe 17 Shaft 18 Wheel auxiliary leg storage part 19 Toilet seat setting frame 20 Toilet seat 21 Wheel mounting frame 22 Step 23 Jumping armrest 24 Backrest

Claims (3)

[Claims] 1. A frame constituting a wheelchair, wherein a backrest frame (1) is pivotally mounted, and an auxiliary leg with wheels (2), a leg lifting link (3), and a support link (4) pivotally mounted on the backrest frame. ), And the link device is operated by the lifting device (5) to move the auxiliary legs (2) with wheels and the link (3) for the lifting portion of the leg, and to move the backrest frame ( 1) A multi-function wheelchair characterized by raising and lowering a leg lifting part (6). 2. A wheelchair comprising front wheels (7) and rear wheels (8).
The multifunctional wheelchair according to claim 1, characterized in that the wheelchair is supported by an auxiliary leg with wheels (2). 3. A link type jack (12) comprising a right-handed trapezoidal screw (9) and a left-handed screw (10) on a lifting device (5) of a link device, and having handle mounting portions (11) at both ends. 3. The multifunctional wheelchair according to claim 1, further comprising: