Automatic speed-variating system

Details Automatic speed-variating system Automatic speed-variating system

1991-07-22

1992-01-28

Diehl, Dwight

Planetary gear transmission systems or components

Condition responsive control

Centrifugally controlled clutch or brake

192 46, 475293, F16H 0000

Patent

active

050839918

ABSTRACT:
An automatic speed-variating system includes: a first speed-variating device formed on a driving rotating device such as a bike pedal and its driving chain sprocket having a first planetary gear system and a ratchet wheel for preliminarily manually variating a speed of the driving rotating device, and a second speed-variating device formed on a follower rotating device such as a follower chain sprocket formed on a bike rear wheel driven by the driving rotating device having at least a second planetary gear system operatively engageable with the follower chain sprocket by at least a centrifugal coupling for automatically variating a speed of the follower rotating device.

REFERENCES:
patent: 813465 (1906-02-01), Svenson
patent: 3494227 (1970-02-01), Shimano et al.
patent: 3546970 (1970-12-01), Schwerdhofer
patent: 3557922 (1971-01-01), Schwerdhofer
patent: 4229997 (1980-10-01), Schwerdhofer
patent: 4838401 (1989-06-01), Nagano
patent: 5004083 (1991-04-01), Lohman
patent: 5011464 (1991-04-01), White

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