Wheelchair

Details Wheelchair Wheelchair

1988-05-13

1990-10-02

Marmor, Charles A.

Motor vehicles

Special driving device

Portable track

180907, 280 522, 2802501, B62D

Patent

active

049601806

ABSTRACT:
A wheelchair is provided with an endless track drive for travel over rough ground. The endless track drive is detachably connected to the wheelchair by a frame such that a lower run of each of the endless tracks is located adjacent a lower periphery of each wheel. The chair in the wheelchair is kept low so that the occupant is not lifted so high as to experience a substantially different elevation when travelling on the endless track as when traveling on the wheels. A suspension preferably in the form of a flexible sheet allows one forward end of an endless track to be moved vertically independently of the forward end of the other endless tracks. Preferably, the endless drive is an attachment that is easily clamped to the wheelchair and is made mostly of plastic that is lightweight and easily cleaned and provides a low cost for the attachment.

REFERENCES:
patent: 3191953 (1965-06-01), Aysta
patent: 3609804 (1971-10-01), Morrison
patent: 4411330 (1983-10-01), Blokland
patent: 4556229 (1985-12-01), Bihler et al.
patent: 4556706 (1986-01-01), Bihler et al.
patent: 4688843 (1987-08-01), Hall

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