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Tricycle wheelchair

A wheelchair and three-wheeled technology, which can be used in patient chairs or special transportation tools, vehicle rescue, medical transportation, etc., and can solve problems such as difficult driving and difficult turning quickly

Inactive Publication Date: 2014-07-16
JAPAN AUTOMATIC MACHINE +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the three-wheeled wheelchair having the above-mentioned configuration, there is a problem that it is possible to turn quickly when turning to the left but it is difficult to turn quickly when turning to the right
In addition, there is a problem that it is difficult to travel on a slope because the rotational driving force of the pedals is transmitted only to the drive wheels and not to the floating wheels.

Method used

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  • Tricycle wheelchair
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Examples

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Embodiment Construction

[0012] The present invention will be described based on the embodiments shown in the drawings. figure 1 , figure 2 The whole structure of the three-wheel wheelchair which concerns on one Embodiment of this invention is shown. However, each direction such as front, rear, left, and right used in the text is based on the direction viewed from the perspective of the user sitting on the three-wheeled wheelchair.

[0013] In the three-wheeled wheelchair of the present embodiment, the frame portion of the three-wheeled wheelchair is formed of a main frame 1 positioned at the center in the left-right direction, and a pair of left and right side frames 2 positioned across the main frame 1 in the left-right direction. The main frame 1 extends in the front-rear direction, and supports a pedal portion 3 for stepping on its front end portion. A rear wheel support shaft 4 extending downward is connected to a rear end portion of the main frame 1 , and a rear wheel 5 is rotatably supported...

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PUM

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Abstract

A problem which the present invention addresses is to provide a tricycle wheelchair with which it is possible to smoothly implement a turn operation up to a pivot turn with a simple manipulation, and to travel well even on an inclined surface. To solve this problem, the present invention is a tricycle wheelchair comprising: a pair of front wheels (16, 18) which are positioned to the left and right; one rear wheel (5) which is positioned to the rear thereof; a manipulation handle (25) which manipulates the facing of the rear wheel (5); and a motive force transmission mechanism (21) which transmits rotating drive motive force of pedal parts (3) to the pair of front wheels (16, 18). The rear wheel (5) is positioned in a middle location between the pair of front wheels (16, 18) and to the rear thereof. The motive force transmission mechanism (21) further comprises a differential mechanism (19) which is interposed between a left shaft (15) and a right shaft (17).

Description

technical field [0001] The present invention relates to a three-wheeled wheelchair that operates by pedaling. Background technique [0002] Japanese Unexamined Patent Publication No. 2010-259517 proposes a three-wheeled wheelchair that can be operated by stepping on a front pedal while maintaining a posture of sitting on a chair. This three-wheeled wheelchair has a pair of front wheels on the left and right, and a steering wheel on the rear of the front wheels. In addition, the right front wheel of the pair of left and right front wheels is used as a driving wheel, and the left front wheel is used as a floating wheel. The driving wheel is driven to rotate by pedaling, and the steering wheel is operated by handle operation. thereby performing a turning action. [0003] In the three-wheeled wheelchair having the above-mentioned configuration, there is a problem that it is possible to turn quickly when turning to the left but it is difficult to turn quickly when turning to th...

Claims

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Application Information

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IPC IPC(8): A61G5/02
CPCA61G5/023A61G5/026A61G5/1005A61G5/1035A61G5/1051A61G5/1089
Inventor 五十岚伸一铃木铁雄高桥隆行半田康延铃木坚之
Owner JAPAN AUTOMATIC MACHINE