Parallel axis gear set and elevator hoist employing the same

Details Parallel axis gear set and elevator hoist employing the same Parallel axis gear set and elevator hoist employing the same

1990-10-31

1991-06-25

Huppert, Michael S.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

74409, 74440, B66B 1104, F16H 5518

Patent

active

050258940

ABSTRACT:
A parallel axis gear set has a first gear, a second gear in engagement with the first gear, and a third gear coaxially rotatable relative to the first gear and in engagement with the second gear. The third gear is in frictional engagement with the first gear, and the third gear includes a plurality of teeth having a tooth thickness larger than that of the second gear or the first gear. The meshing depth between the first gear and the second gear is greater than the meshing depth between the third gear and the second gear. An elevator hoist apparatus employing the gear set is also disclosed.

REFERENCES:
patent: 3174356 (1965-03-01), Michalec
patent: 3496794 (1970-02-01), Forichon
patent: 4189951 (1980-02-01), Sauter
patent: 4433755 (1984-02-01), Ohtomi
patent: 4526252 (1985-07-01), Hirano
patent: 4569423 (1986-02-01), Hirano
patent: 4747321 (1988-05-01), Hannel
patent: 4846309 (1989-07-01), Nara et al.

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