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Wheel chair

A technology of wheelchairs and wheels, which can be used in patient chairs or special means of transport, vehicle rescue, rider driving, etc., and can solve the problems of difficult wheelchairs, heavy loads, and heavy loads

Inactive Publication Date: 2006-03-22
NITTA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But in order to make the wheelchair walk in this way, a large load is generated on its upper body
Especially when walking on gravel roads and soft ground containing water, the load is quite heavy, and it is difficult to use a wheelchair to walk without considerable physical strength

Method used

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Examples

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Effect test

Embodiment Construction

[0042] Hereinafter, suitable embodiments of the wheelchair of the present invention will be described with reference to the drawings.

[0043] figure 1 It is an external perspective view of the wheelchair 1. The wheelchair 1 includes a frame 2, a seat 3 attached to the frame 2, two main wheels 4 arranged on both sides of the seat 3, and an arm 5 for rotating the two main wheels 4. A backrest portion 6 is provided in a direction crossing the seat portion 3, and two auxiliary wheels 7 having a smaller diameter than the main wheel 4 are arranged in front of the main wheel 4. Furthermore, between the main wheel 4 and the arm portion 5, a force transmission mechanism 20 for transmitting force from the arm portion 5 to the main wheel 4 (refer to figure 2 ). The following describes their respective structures.

[0044] figure 1 Among them, the frame 2 has a horizontal frame 2a, a vertical frame 2b, a side frame 2c, and a foot frame 2d. The horizontal frame 2a is formed by extending t...

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PUM

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Abstract

The present invention provides a manual wheelchair that can rotate its wheels by itself with a small load. The wheelchair of the present invention is provided with: a frame (2) that supports at least a seat portion (3); and a plurality of wheels (4), at least one of which is arranged on both sides of the seat portion (3), and is provided with respect to the vehicle. The frame (2) can rotate freely; the arm portion (5) is installed on at least one wheel (4) among the plurality of wheels (4), and can use the approximate center of the wheel (4) as a fulcrum. Swings in the rotation direction of the wheel (4); a force transmission mechanism is installed between the one wheel (4) and the arm (5), when the arm (5) is moved in a certain direction When swinging, it imparts a rotational force to the substantially central portion of the wheel (4), and when the arm portion (5) is swinged in a direction different from the one direction, it spins freely with respect to the wheel (4). .

Description

Technical field [0001] The present invention relates to a wheelchair, in particular to a manual wheelchair that can easily walk by itself while riding on the wheelchair. Background technique [0002] The manual wheelchair has a ring-shaped outer ring integrated with the wheel on the outside of the wheel. When the caregiver is not present, the user of the wheelchair rotates the outer ring to make the wheelchair walk. [0003] However, in order to make the wheelchair walk in this way, a large load is generated on its upper body. Especially when walking on gravel roads and soft ground containing water, the load is quite large, and it is difficult to walk on a wheelchair without considerable physical strength. [0004] In order to solve this problem, for example, Patent Document 1 discloses a wheelchair that can walk even if the user of the wheelchair is weak. In this wheelchair, a lever is provided between the horizontal frame of the wheelchair and the wheels. The lever is installed...

Claims

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Application Information

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IPC IPC(8): A61G5/00A61G5/10B62M1/16A61G5/02
CPCA61G5/028A61G5/1016A61G5/1035
Inventor 河渕靖大内守青木胜诏
Owner NITTA CORP