Gear crank apparatus for a bicycle

Details Gear crank apparatus for a bicycle Gear crank apparatus for a bicycle

1979-06-12

1982-03-09

Husar, C. J.

Machine element or mechanism

Elements

Cranks and pedals

291592, 29526R, 74447, 74449, 403344, G05G 114, F16H 5502

Patent

active

043183107

ABSTRACT:
A chain gear for a bicycle is formed from an approximately rectangular metallic band-shaped plate which has gear teeth formed along one edge and which is equal in length to the peripheral length of the chain gear. The band-shaped plate is wound into a ring-shape and end portions of the band-shaped plate are secured together to form the chain gear. The chain gear is secured to a chain gear adapter of a bicycle by a fixing means, the adapter rotating in accordance with a pedalling operation.

REFERENCES:
patent: 648077 (1900-04-01), Ludlow
patent: 786274 (1905-04-01), Duff
patent: 2385617 (1945-09-01), Eisenman et al.
patent: 3407681 (1968-10-01), Kiernan et al.
patent: 3557633 (1971-01-01), Frerichs
patent: 3919898 (1975-11-01), Sugino
patent: 4009621 (1977-03-01), Segawa

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