Stair-climbing wheelchair

Details Stair-climbing wheelchair Stair-climbing wheelchair

1977-01-31

1978-08-22

Song, Robert R.

Land vehicles

Step or abutment ascending type vehicle

Relatively movable running gear portions

180 8A, B62B 502

Patent

active

041084497

ABSTRACT:
A wheelchair which has a seat, back and foot and leg supporting structure in which there are main and auxiliary wheels for supporting the body of the wheelchair when it is operating on a substantially level or smooth surface and in which there is climbing and descending means in the form of a flexible and pliable wheel which is brought into operating position when it: is desired to climb or descend a staircase, or when the wheelchair is moving over a very rough surface.

REFERENCES:
patent: 3104112 (1963-09-01), Crail
patent: 3169596 (1965-02-01), Wright
patent: 3196970 (1965-07-01), Brenner
patent: 3592282 (1971-07-01), Soileau

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