Derailleur for bicycle

Details Derailleur for bicycle Derailleur for bicycle

1975-09-23

1977-06-07

Scott, Samuel

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74242, F16H 722

Patent

active

040275426

ABSTRACT:
In a derailleur for a bicycle, improved pivotal connections between a bracket fixed to a bicycle frame and a support mounted to the bracket and rotatable only in a given range, and between a movable member supported on the support through links and a chain-change-over frame carried with the movable member through swinging motion only in a given range. At least one of the bracket and the support and one of the movable member and the chain-change-over frame is integrally formed in projection by a press a pivot or a receptor receiving the pivot therein, thereby to provide a derailleur having a reduced number of parts for pivotting and saving processes in assembly with attendant low costs of manufacture.

REFERENCES:
patent: 3111855 (1963-11-01), Juy
patent: 3181383 (1965-05-01), Juy
patent: 3364763 (1968-01-01), Juy
patent: 3710636 (1973-01-01), Ozaki
patent: 3803933 (1974-04-01), Huret et al.
"The Handbook of Cycl-Ology" 6th edition, p. 58, 1973, copyrighted 1967-1973.

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