Automatic speed-variating system

Details Automatic speed-variating system Automatic speed-variating system

B - Operations, Transporting

62

M

B62M 11/14 (2006.01) F16H 61/02 (2006.01)

Patent

CA 2074202

Abstract of the Disclosure: 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.

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