Wheeled-chair chassis with a suspension mechanism

Details Wheeled-chair chassis with a suspension mechanism Wheeled-chair chassis with a suspension mechanism

1991-12-13

1993-01-19

Culbreth, Eric D.

Motor vehicles

Power

Electric

180 60, 180 656, 180299, 180371, 180312, 180907, 280690, 280701, B60K 100

Patent

active

051800250

ABSTRACT:
A wheeled-chair chassis with a suspension mechanism which comprises a chassis structure, a suspension system, a transmission system and two front and rear wheels; the chassis structure includes a steel pipe frame similar to an inverse triangular frame. The suspension system includes shock absorbers, rocker arms, and pivot pins; one end of the rocker arm is connected with a pivot base on lower end of the steel pipe frame by means of a pin, while the other end thereof is mounted with a gear rack for mounting a motor of the transmission system, a gear box, and the rear wheels. The shock absorber is fixedly mounted between the steel pipe frame and the rocker arm to provide a retractable movement for absorbing a shake from the rear wheels and the rocker arm caused by a rough road surface in order to provide the chair with a comfortable driving. Since each of the systems is an independent assembly, it is easy to assemble.

REFERENCES:
patent: 2039513 (1936-05-01), Baker
patent: 4436320 (1984-03-01), Brudermann et al.
patent: 4455031 (1984-06-01), Hosaka
patent: 4967864 (1990-11-01), Boyer et al.
patent: 5022476 (1991-06-01), Weege

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