Method of making a pair of wheelchair side frame assemblies

Details Method of making a pair of wheelchair side frame assemblies Method of making a pair of wheelchair side frame assemblies

1993-08-17

1994-11-08

Vo, Peter Dungba

Metal working

Method of mechanical manufacture

Structural member making

29897, B23P 1904

Patent

active

053614941

ABSTRACT:
A wheelchair includes a chassis having a pair of side frame assemblies that are rigidly connected to each other by a seat pan. Mounted on each side frame assembly is an interchangeable axle receiving platform for orienting drive wheels at a desired camber angle. One end of a seat member is pivotally attached to a foot member for adjustment of the seating angle. By moving an opposite end of the seat member along a curved portion of a bottom member of each side frame assembly, the seat angle is changed. A one piece caster assembly is disposed forward of the drivewheels on the chassis. Through the one-piece caster assembly, each caster can be simultaneously adjusted to a particular location along the frame.

REFERENCES:
patent: 3917312 (1975-11-01), Rodaway
patent: 4232897 (1980-11-01), Maclaren et al.
patent: 4317581 (1982-03-01), Kassai
patent: 4405142 (1983-09-01), Whetstine
patent: 4650201 (1987-03-01), Hartwell
patent: 5020816 (1991-06-01), Mulholland
patent: 5152543 (1992-10-01), Sims et al.
patent: 5249818 (1993-10-01), Patterson

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