JP2001087316A - Standing-up/seating operation mechanism of running auxiliary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means enabling a very old person or a person requiring rehabilitation to safely perform standing-up/seating operation in a general home without requiring a helper. SOLUTION: Small-sized standing-up/seating operation utilizing a gas cylinder is realized by a lift mechanism consisting of an auxiliary lift device 10 and a wrench handle with a ratchet wherein a guide nut is incorporated in a guide screw 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a travel assist mechanism for assisting an elderly person or a person in need of rehabilitation to stand and sit without a caregiver.

2. Description of the Related Art Conventionally, as a travel assisting device for elderly people or those who need rehabilitation, there has been a device described in, for example, (1) Japanese Patent Application Laid-Open No. 9-285496. As a result, running, standing, and sitting operations can be performed.

[0003] Others that support standing and sitting motions include (2) a travel assist device that supports the standing and sitting motions described in Japanese Patent Application Laid-Open No. 9-285495, all of which are large and can be handled by ordinary households. It is an auxiliary device having a difficult and expensive electric standing and sitting operation auxiliary device and a moving operation control section.

[Problems to be Solved by the Invention] Both the prior arts (1) and (2) are large and difficult to use in narrow corridors of ordinary homes.

[0005] With the promotion of barrier-free, handrails have been installed in living rooms and corridors of ordinary homes, and an environment that makes it easy to walk along has been set up. It is very difficult for those who require rehabilitation and rehabilitation, and the prior arts (1) and (2) are also large, cumbersome and expensive.

SUMMARY OF THE INVENTION An object of the present invention is to provide a small and inexpensive standing / seating / running assist device that can be used in ordinary homes so that the elderly or those who need rehabilitation can stand alone without a caregiver. is there.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention comprises a lifting / lowering mechanism provided with a gas cylinder and a guide screw of an auxiliary lift in a travel assist device, and the lifting / lowering position of a seat is determined. Arbitrarily easy to stop.

[0008] Furthermore, the guide screw can be easily moved up and down by switching the direction of the ratchet pawl with a wrench handle with a ratchet in which a lifting nut is assembled.

[0009] Furthermore, the simplification of the auxiliary lift mechanism has made it possible to provide a small and inexpensive traveling assist device having a standing / seating operation mechanism.

[Embodiment of the Invention] (Overall Structure) FIG. 1 is an external view of a travel assist device of the present embodiment.
FIG. 2 is a plan view of a detailed view of the guide screw portion of FIG. FIG. 4 is a side view of the travel assist device, and FIG. 5 is a view seen from the rear thereof. The travel assisting device has legs 1 and 2, and a seat 3, a backrest 4, and a guide frame 6 that moves up and down are integrated with a bracket 9 to which the bottom side of a cylinder 10 is fixed and moves up and down.

The traveling is performed by alternately moving the left and right grips 2. At this time, a joint is attached to the frame 2 so as to rotate around the leg axis of the frame 1, and a rubber pad 18 for preventing slip is connected to an end of the leg.

The seat 3 includes a backrest 4, a cylinder mounting bracket 9, and a guide frame 6 on which the cylinder 10 moves up and down.
And the frame 1 at both ends of the guide frame 6
The joint which slides the leg is connected.

FIG. 3 is a detailed view of the guide screw portion.
A bracket 11 that connects the rod side of the silling 10 to a frame 5 integrated with the frame 1 is fixed, and a bracket 12 is fixed with bolts.
Is fixed with a nut 14.

A guide screw 8 is inserted through a drilled hole of the bracket 13 through a bracket 9 connected to the bottom side of the cylinder 10, and a wrench handle 7 with a ratchet with a nut 15 and a bracket 13 through a slide washer 16 are moved up and down. It is fixed with two bolts.

(Elevating mechanism) The seat assembly (the seat 3, the backrest 4, and the guide frame 6) via the bottom side of the cylinder 10 and the bracket 9 prevents the cylinder 10 from being raised by the bracket 1 fixed to the bracket 9.
The seat assembly is moved up and down each time the nut 15 is moved up and down by a ratchet handle with a ratchet.

In FIG. 4, when the seat 3 is in contact with the floor and the handle 7 installed behind the seat back 4 is operated, and the lifting nut 15 of the guide screw 8 is operated to the up side, the seat 3 is moved to the position shown in FIG. Is raised to the position indicated by the dashed line, and the switching lever 17 (FIG. 2) of the pawl of the wrench handle 7 with a ratchet is switched.
Is a configuration in which the seat 3 is lowered to lower the seat 3.

(Operation Procedure) When an elderly person or a person in need of rehabilitation rises from a state of sitting on the floor, FIG.
In FIG. 1, when the handle 7 at the back of the backrest 4 is swung, the nut 1 is seated.
5 pushes up the bracket 13 along the guide screw.

The bracket 9 which connects the bracket 13
Is in a direction in which it is constantly pushed up by the reaction force of the gas of the cylinder 10, and this is fixed to the nut 15 attached to the guide screw 8.
Are positioned and restrained.

Therefore, the seat 3 connected to the brackets 9, 13 moves up and down integrally with the brackets 9, 13 by raising and lowering the nut 15 of the guide screw 8 and raising and lowering the seat 3 by the lowering operation. Descend.

In FIG. 4, a hinge mechanism is built in the upper portion of the seat 3 during walking, and a mechanism is provided in which the seat 3 is rotated and stored as shown by a broken line.

[Brief description of the drawings]

FIG. 1 is an external view of an embodiment of a stand-up running assist device according to the present invention.

FIG. 2 is a plan view of a detailed guide screw part FIG. 3;

FIG. 3 is a detailed view of a guide screw unit.

FIG. 4 is a side view of the rising traveling assist device of the present invention.

FIG. 5 is a view seen from the rear of the stand-up running assist device of the present invention.

[Explanation of symbols]

1, 2 frames, 3 lifting seats, 4 lifting frames, 5 fixed frames, 6 lifting guide frames, 7
Handle, 8 guide screw, 9 lifting bracket, 10 cylinder, 11, 12 fixed bracket, 1
3 lifting bracket, 14 nuts, 15 guide nuts, 16 washers, 17 ratchet switching lever, 18 pads,

Claims (3)

[Claims] An auxiliary lift having a gas cylinder and a guide screw in an auxiliary lift having an elevating / seating operation mechanism. 2. The driving assistance device according to claim 1, wherein
A travel assist device having an elevating mechanism, comprising a wrench handle with a ratchet in which a nut is assembled to a guide screw. 3. A travel assist device according to claim 1, wherein said auxiliary lift device comprises a lifting mechanism using pneumatic, hydraulic and electric power for said auxiliary lift.