Crank device for the transmission of energy with elimination of

Details Crank device for the transmission of energy with elimination of Crank device for the transmission of energy with elimination of

1995-11-06

1998-05-26

Schoeppel, Roger

Endless belt power transmission systems or components

System including spaced pulleys interconnected by a belt

With frame or mount for system

474903, 745942, G05G 112

Patent

active

057556350

ABSTRACT:
The pedal cranks (32, 34) on the propulsion group of a bicycle or similar rotate independently with respect to one another around axis (a), which is parallel and spaced at a distance (d) from axis (b) of a chain drive sprocket wheel (28). Each pedal crank is constrained to rotate together with the sprocket wheel but is free to travel over the same. An adjustment for the position of the sprocket wheel, around the axis of the pedal cranks, is provided for.

REFERENCES:
patent: 599970 (1898-03-01), Menk
patent: 4768998 (1988-09-01), Hirose et al.
patent: 4816009 (1989-03-01), Philipp
patent: 5067370 (1991-11-01), Lemmens

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