Wheelchair

Details Wheelchair Wheelchair

1992-01-13

1993-10-19

Camby, Richard M.

Land vehicles

Wheeled

Extensible

280 42, 280647, B62B 1100, B62M 114

Patent

active

052538869

ABSTRACT:
A collapsible wheelchair having a pair of opposed side frames connected by scissors cross bars and having a pair of vertical shafts, which terminate in handles connected to the rear end of the side frame. A pair of seat-supporting members telescope into the side frames and move up and down as the side frames are brought together to collapse the wheelchair. To reduce the frictional forces in the telescoping members, rollers are provided on the telescoping members which bear against the vertical shafts and roll up and down as the chair is folded from use to non-use positions and back again.

REFERENCES:
patent: 3627343 (1971-12-01), Meger
patent: 4422660 (1983-12-01), Costello et al.
patent: 4457535 (1984-07-01), Takeuchi et al.
patent: 4641848 (1957-02-01), Ayers
patent: 4861056 (1989-08-01), Duffy, Jr. et al.

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