Electric telescopic stick

A technology of electric retractable and crutches, which is applied in the direction of walking sticks, travel goods, applications, etc., and can solve the problems of not being able to stretch one by one, slow stretching, etc.

Inactive Publication Date: 2011-04-20
IWATA TEKKOSHOKK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Conventional crutches are simply rod-shaped crutches. There are telescopic crutches that fit buttons into holes and fix them, and telescopic crutches that fix them with screws. stretch one by one to fit
[0003] On the other hand, although Patent Documents 1 to 5 list crutches with electric telescopic functions, none of these crutches has many threads for converting rotation into linear motion, and the response to expansion and contraction is slow.

Method used

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  • Electric telescopic stick
  • Electric telescopic stick
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 as well as figure 2 Among them, the fixed crutch part 2 and the movable crutch part 3 are hollow outer tubes and inner tubes constituting the main body of the crutches, which are made of light weight, high bending strength carbon tubes, aluminum alloys such as duralumin and other metal materials. The handle part 1 is attached to the upper part of the part 2.

[0030] An electric motor 7 , a control circuit board 12 for driving the motor, a rechargeable lithium ion battery 11 , and a switch 6 are built in the handle portion 1 . In addition, the electric motor 7 is rotationally driven in forward and reverse directions by operating the switch 6 of the handle portion 1 . In addition, the outer surface of the handle portion 1 is covered with a soft member of soft synthetic rubber or foamed resin.

[0031] The crutch main body is composed of a large-diameter fixed crutch part 2 and a movable crutch part 3 inserted into the fixed crutch part 2 so as to be slidable...

Embodiment 2

[0035] exist figure 2 The lower end of a plurality of feed threads is assembled with a buffer device composed of sliding hardware 13, spring retainer 14, spring 15, and sleeve 16. According to this, although the nut member 5 and spring retainer 14 are stretched out at the maximum The collision is further compressed by the spring 15, but the clutch moves before the spring 15 contracts, and the occlusal adhesion (食いつき付) of the thread can be eliminated. From this state, the crutches can be contracted without any problem by reversing the rotation with the switch 6 .

[0036] image 3 In the example of the clutch used in the present invention, the spring 26 and the steel ball 25 that are accommodated in the deep hole 24 provided on one of the rotating shafts 22 only in the extending direction are provided on a plurality of feed screw connection shafts. The abutment hole 23 on the opposite surface of 21, that is, with the depth of the steel ball 25 entering the center, the two-ho...

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PUM

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Abstract

There is provided an electric telescopic stick of which length can be easily adjusted quickly if needed by using only one hand by providing a multiple thread screw and providing a switch on an anterior portion of a grip portion including an electric motor which rotates the multiple thread screw in the forward and reverse directions. Further, in the electric telescopic stick, since a clutch is formed between the electric motor and the multiple thread screw, overload is not applied to the motor because the clutch idles when the movable stick portion is completely elongated. Further, a user can recognize the idling state from hitting sounds generated when steel balls are hit against holes when the clutch idles.

Description

technical field [0001] The invention relates to an electric telescopic crutch with a telescopic function for assisting up and down steps, etc., and assisting movements such as standing up from a chair and sitting down. Background technique [0002] Conventional crutches are simply rod-shaped crutches. There are telescopic crutches that fit buttons into holes and fix them, and telescopic crutches that fix them with screws. Scale one by one to fit. [0003] On the other hand, although Patent Documents 1 to 5 list crutches with electric telescopic functions, none of these crutches has many threads for converting rotation into linear motion, and the expansion and contraction is slow. [0004] prior art literature [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 7-246223 [0006] Patent Document 2: Japanese Patent Application Laid-Open No. 8-242917 [0007] Patent Document 3: Japanese Unexamined Patent Publication No. 2002-35064 [0008] Patent Document ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A45B7/00A45B9/00
CPCA45B2009/007A45B9/00
Inventor 岩田胜美
Owner IWATA TEKKOSHOKK
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