Land vehicles – Wheeled – Occupant propelled type
Patent
1999-01-07
2000-04-11
DePumpo, Daniel G.
Land vehicles
Wheeled
Occupant propelled type
280248, 280249, B62M 114
Patent
active
060479809
ABSTRACT:
A manual two-speed wheelchair having a chair, frame, fixed wheel axles, and wheel assemblies. The wheelchair is capable of driving in a direct (1:1) power mode and a lower gear mode without shifting. A separate secondary input assembly provides for reduced gearing, one secondary input rim assembly per wheel assembly. The secondary input assembly includes a toothed driver gear, a toothed driven gear, and toothed belt. The driver gear and driven gear are offset from each other. This is accomplished by an offset arm. The secondary input assembly drives the driver gear, which, in turn, drives the belt, which, in turn, drives the driver gear, which is fixedly attached to the wheelchair wheel assembly. The wheel assembly also includes a direct drive input rim such that a user can choose to apply a propulsion force to either the direct drive input rim (1:1 direct drive mode) or the secondary rim assembly (the slow or reduced gear mode), which can be field adjusted by changing the gearing ratio between the driver gear, driven gear and belt.
REFERENCES:
patent: 3563568 (1971-02-01), Sasse et al.
patent: 4274650 (1981-06-01), Gilles
patent: 4360213 (1982-11-01), Rudwick et al.
patent: 4380343 (1983-04-01), Lovell et al.
patent: 4453729 (1984-06-01), Lucken
patent: 4506900 (1985-03-01), Korosue
patent: 4506901 (1985-03-01), Tosti
patent: 4560181 (1985-12-01), Herron
patent: 4625984 (1986-12-01), Kitrell
patent: 4652026 (1987-03-01), Byrge
patent: 4682783 (1987-07-01), Kuschall
patent: 4732402 (1988-03-01), Lambert
patent: 4758013 (1988-07-01), Agrillo
patent: 5020815 (1991-06-01), Harris et al.
patent: 5033993 (1991-07-01), Genaw et al.
patent: 5037120 (1991-08-01), Parisi
patent: 5060962 (1991-10-01), McWethy
patent: 5160156 (1992-11-01), Mendon
patent: 5184837 (1993-02-01), Alexander
patent: 5322312 (1994-06-01), Cammack
patent: 5362081 (1994-11-01), Beidler et al.
patent: 5482305 (1996-01-01), Jeffries et al.
Al-A wadhi Khaled
Aleshire Rebecca A.
Cousins Amand
Livesay Jean
Margherita Anthony
DePumpo Daniel G.
Dunn David R.
Petrich Kathleen T.
University of Washington
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