RU2234904C2 - Invalid's wheel chair with mechanism for raising and lowering of seat by individual occupying seat - Google Patents

Abstract

FIELD: transportation means, in particular, equipment with special devices for transportation of invalids.

SUBSTANCE: invalid's wheel chair has mechanism for raising and lowering of seat by user himself, and levers for raising and lowering of each leg or simultaneously of two legs. Seat is made detachable and replaceable. Raising and lowering mechanism is designed for raising of seat to upper face of wheel chair and lowering to floor level. Carcass has detachable rigidity ribs used for preventing collision thereof with toilet bowl. Such construction allows invalid to move to bed or from bed, wash in bath, all by himself.

EFFECT: wider operational capabilities, improved blood circulation and provision for doing massage with foots.

3 dwg

Description

The invention relates to vehicles with special devices for the disabled.

The closest analogue of the invention is a wheelchair according to the application of Japan 3-66898, A 61 G 6/00, 10.21.1991, containing a mechanism for raising and lowering the seat by the seated ones.

The essence of the invention lies in the fact that a wheelchair containing a mechanism for raising and lowering the seat by the one sitting on the seat, in contrast to the closest analogue, further comprises levers for raising and lowering each leg or two legs at the same time, while the seat is removable and replaceable, the lifting mechanism and lowering the seat is made with the possibility of raising it to the upper edge of the stroller and lowering it to the floor level, and the frame has removable stiffeners for hitting the toilet.

The invention is illustrated by drawings, Fig.1-3.

The carriage frame is assembled from pipes.

In the pipe 1 fasten the cables for raising and lowering the seat.

In the pipe 2 there is a screw with a nut. The screw has a square profile thread. This thread has the property of self-braking.

Handle 4 for turning the screw for raising and lowering the wheelchair seat.

Seat 6 is removable and interchangeable.

In the pipe 9 are the cables lifting the seat. In the vertical pipe 10 there are cables for raising and lowering the seats and rollers for supporting the cables.

The lever 11 for lifting the leg supports raises and lowers the leg supports.

Prop 13 legs.

Figure 2.

In the pipes 1 there are cables for raising and lowering the seat.

In the vertical pipe 2 there is a screw with a nut for raising and lowering the seat, and a shaft rotation handle 4.

In the pipe 9 there are cables.

In the vertical pipes 10 pass the cables and placed rollers of the cable support.

11 - lever lifting legs supports.

The frame stiffener is removable.

The strut stiffener strut 12a is removable.

Bearing 13.

Wheel 15 strollers. Hinge 16 levers lifting legs.

Figure 3.

Shown here is a mechanism for raising and lowering the wheelchair seat, curved from the carriage frame.

Screws with square threads are located in the vertical tubes of the frame.

Nuts are screwed onto the screws. The nuts are attached to the seat. Screws rotate by handles 4. Seat 6.

By mounting 6a, the seat is attached to the cables. Cables 7 for raising and lowering the seat. Rollers 8 - cable supports.

Stroller work

Disabled person sits on a stroller seat from floor level. Handles both screws at the same time. Sets the required seat level. He drives up to a bed, sofa, etc. Raises his legs with levers and, holding on to the bed, moves himself to or from her.

The upper edge of the seat can rise to the level of the top of the frame.

The handle is removed, and the disabled person displaces himself from the stroller in one direction or another.

A visit to the bath in the same way.

A disabled person lifts the leg supports with levers and shifts himself to the bath seat.

Currently, the Oktyabr P / Association of the city of Kamensk-Uralsky has finished manufacturing an industrial design of the mechanism for lowering the seat into the bath and raising it in the bath, which makes it possible for a disabled person to wash in the bath as a healthy person.

A disabled person has the opportunity, while sitting in a stroller, to raise his legs with leverage in a horizontal position and thereby improve blood circulation for a while, etc.

If desired, the disabled person can do leg massage, raising and lowering the levers of their support.

The force of rotation of the screws when lifting the seat with a person according to the formula

F = pH / 2πR,

where P is 80 kg per person,

N - 2 cm pitch of the screw,

R - 20 cm arm length.

Will make: 160: 125.6 - 1.3 kg, taking into account friction - 2 kg.

Overcoming the indicated force will not be difficult for a weak person and a young one.

Claims (1)

A wheelchair containing a mechanism for raising and lowering the seat by the one sitting on the seat, characterized in that it further comprises levers for raising and lowering each leg or two legs at the same time, while the seat is removable and interchangeable, the mechanism for raising and lowering the seat is made to raise it to the upper edge of the stroller and lowering to the floor level, and the frame has removable stiffness brackets for hitting the toilet.

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