Single-hand manual drive wheelchair assembly

Land vehicles – Wheeled – Occupant propelled type

Patent

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Details

2803041, 280270, B62M 114

Patent

active

053060350

ABSTRACT:
A single-handed manual drive wheelchair assembly (20) for a wheelchair (10) is provided for triplegic persons having use of only one hand. A first drive wheel (22) is provided rotatably mounted to one side (13) of a wheelchair frame (11), while a second drive wheel (23) is rotatably mounted to an opposite side (14) of the frame (20). A manual hand-rim assembly (26) positioned proximate the first drive wheel (22) which is mounted for rotation relative to the first drive wheel (22) about a common wheel axis (24). An elongated drive axle member (30) is coupled between the hand-rim assembly (26) and the second drive wheel (23) which is substantially axially aligned to rotate about the common wheel axis (24). The axle member (30) includes a first latching mechanism (31) on one end thereof which is releasably coupled to the hand-rim assembly (26). The axle member (30) further includes a second latching mechanism (32) on an opposite end thereof which is releasably coupled to the second drive wheel (23) such that manual rotation of the hand-rim assembly (26) from a working-hand side of the wheelchair (10) rotatably drives the second drive wheel (23).

REFERENCES:
patent: 4506900 (1985-03-01), Korosue
patent: 4553770 (1985-11-01), Lyman
patent: 4641847 (1987-02-01), Busse
patent: 4684171 (1987-08-01), Roy et al.
patent: 4938623 (1990-07-01), Alexander
patent: 4993732 (1991-02-01), Wedemeyer
patent: 5020815 (1991-06-01), Harris et al.
patent: 5112072 (1992-05-01), Korosue

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