Folding wheelchair

Details Folding wheelchair Folding wheelchair

2005-09-06

2005-09-06

Lerner, Avraham (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C280S650000

Reexamination Certificate

active

06938911

ABSTRACT:
A folding wheelchair includes two side frame units arranged in parallel at two sides, each side frame unit formed of two four-bar linkages arranged at different elevations, a plurality of folding bars transversely coupled between the side frame units, two sets of guide rods respectively coupled to the side frame units and adapted to guide folding of the wheelchair between the extended position and the collapsed position, and two swivel hooks for hooking on the pivot between each set of guide rods to lock the wheelchair in the extended position.

REFERENCES:
patent: 6131940 (2000-10-01), Arnoth
patent: 6227559 (2001-05-01), Slagerman et al.
patent: 6302429 (2001-10-01), Friedrich
patent: 6343805 (2002-02-01), Roy
patent: 6352275 (2002-03-01), Lindenkamp
patent: 6769503 (2004-08-01), Cheng
patent: 6776433 (2004-08-01), Harrison et al.
patent: 2002/0038943 (2002-04-01), Kuroda
patent: 3136099 (1983-04-01), None
patent: 2125740 (1984-03-01), None

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