Gear crank for a bicycle

Details Gear crank for a bicycle Gear crank for a bicycle

1976-07-19

1980-01-15

Scott, Samuel

Machine element or mechanism

Elements

Cranks and pedals

192 64, 280261, B62M 300, F16D 2300

Patent

active

041832620

ABSTRACT:
A gear crank for a bicycle unidirectionally freely rotatably supporting at least one sprocket wheel with a crank body integrated with a crank shaft and a pair of crank arms at both ends of the shaft and having an inner ring which is passed over one of the arms to be mounted to one end of the shaft, is fixed with a cone, and supports, through a unidirectional rotational transmission, a driven member with the sprocket wheel in a unidirectionally freely rotating relation therewith.

REFERENCES:
patent: 506105 (1893-10-01), Donnelly
patent: 624635 (1899-05-01), Fauber
patent: 643349 (1900-02-01), Fauber
patent: 2211548 (1940-08-01), Schwinn
patent: 2257401 (1941-09-01), Schwinn
patent: 3377883 (1968-04-01), Thun
patent: 3433097 (1969-03-01), Fox
patent: 3492883 (1970-02-01), Maeda
patent: 3608184 (1971-09-01), Thun
patent: 3835729 (1972-11-01), Tarutani

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