Multistage gear crank for a bicycle

Details Multistage gear crank for a bicycle Multistage gear crank for a bicycle

1976-12-16

1978-08-15

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

29159R, F16H 5530, B21D 5326

Patent

active

041063570

ABSTRACT:
A multistage gear crank for a bicycle, comprising at least two chain gears and a crank body, which chain gears together with a mounting plate for mounting the two gears to the crank body are formed by punching only one metallic sheet.

REFERENCES:
patent: 3785219 (1974-01-01), Anthamatten
patent: 3813955 (1974-06-01), Huret et al.
patent: 3901095 (1975-08-01), Wechsler

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