Gear transmission apparatus

Details Gear transmission apparatus Gear transmission apparatus

1992-12-23

1995-01-03

Lorence, Richard M.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Sun braked

475318, 475324, F16H 344

Patent

active

053782100

ABSTRACT:
A gear transmission apparatus comprises a planetary gear mechanism having an internal gear, a plurality of pinion gears, a pinion carrier, and a sun gear. The pinion carrier has an overhang portion extending along an outer periphery of the internal gear. A bearing or bush is provided to support the overhang portion. A band brake is provided for braking the pinion carrier when brought into frictional contact with the overhang portion. A one-way clutch is interposed between the rotation input shaft and the rotation output shaft so as to allow rotation of the rotation output shaft in a speed-increase direction. In a preferred embodiment, either the sun gear or the internal gear is braked by the band brake.

REFERENCES:
patent: 2327769 (1943-08-01), Claytor
patent: 2369976 (1945-02-01), Orr
patent: 2771795 (1956-11-01), Orr
patent: 4800780 (1989-01-01), Sivalingam
patent: 4862770 (1989-09-01), Smith
patent: 4938738 (1990-07-01), Fuelberth et al.
patent: 5139468 (1992-08-01), Churchill et al.

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