Assembly of chain sprockets and cranks for bicycle

Details Assembly of chain sprockets and cranks for bicycle Assembly of chain sprockets and cranks for bicycle

1976-03-03

1977-03-01

Scott, Samuel

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

745942, 74447, F16H 5530, F16H 5512

Patent

active

040096211

ABSTRACT:
An assembly of chain sprockets and cranks for a bicycle, a plurality of which sprockets are formed of a punched metal plate and fixed at a predetermined interval to mounting arms. The arms are provided with a plurality of mounting seats formed inwardly stepwise from the utmost ends of the arms respectively so that each of the chain sprockets is fixed to each of the seats by means of a fixing means, whereby the assembly is inexpensive to manufacture by saving loss of materials, each sprocket can be changed independently, and the assembly is capable of preventing a driving chain from falling between the sprockets.

REFERENCES:
patent: 580291 (1897-04-01), Osmond
patent: 3550465 (1976-12-01), Maeda
patent: 3919898 (1975-11-01), Sugino

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