Change gear system

Details Change gear system Change gear system

1995-09-08

1997-10-21

Marmor, Charles A.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural drive ratios other than unity

475 16, 475170, 475298, 74 63, 74390, 74393, 74397, F16H 344

Patent

active

056790880

ABSTRACT:
A change gear system comprises a driven case, a driving shaft and shifting means for shifting the drive shaft, and three sliding frames are provided in alignment in the driven case. Each sliding frame is provided with a pair of rack gears with teeth facing each other and cam surfaces facing each other in parallel with a pitch line of the rack gears. The sliding frames are provided for movement at an angle of 120 (deg.) in different directions perpendicular to the pitch, respectively. The driving shaft is provided with pinions and cam plates. The cam plates are in contact with the cam surfaces, and serve for positioning the sliding frames. The cam plates are configured such that arcs C1 are linked alternatingly with arcs C2.

REFERENCES:
patent: 3526148 (1970-09-01), Charpentier
patent: 4411165 (1983-10-01), Evans
patent: 4800768 (1989-01-01), Kazuta
patent: 5099706 (1992-03-01), Irvin

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