Front derailleur for a bicycle

Details Front derailleur for a bicycle Front derailleur for a bicycle

1983-07-14

1985-03-26

Staab, Lawrence J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

74501R, F16H 722, F16H 1108

Patent

active

RE0318540

ABSTRACT:
An improved front derailleur for a bicycle, is provided with a mounting nose extending from a base member of the derailleur and with a support mounted to the nose integrally therewith or independently thereof, the support including an insertion bore for a control wire and a socket for an outer sheath guiding the wire. The mounting nose and support have guide slots in continuation of the insertion bore and extending therefrom, the guide slot extending in a direction away from a linkage member of the derailleur. The guide slots have a length larger than the maximum wire deflection created when a control wire having no outer sheath is operated.

REFERENCES:
patent: 3730012 (1973-05-01), Juy
patent: 3798988 (1974-03-01), Nagano
patent: 3813955 (1974-06-01), Huret et al.
patent: 3890847 (1975-06-01), Dian
patent: 3979962 (1976-09-01), Kebsch
patent: 4030374 (1977-06-01), Isobe
patent: 4051738 (1977-10-01), Dian
patent: 4174851 (1979-11-01), Huret
Le Cycle (French Magazine), Oct. 1970 (Cover page and pp. 35, 36).
Catalogue SXA12-Simplex Company, Publication Date Unknown.
New Cycling-Derailleurs Collection 1981; Published May 15, 1981, Bero Company (Cover page, pp. 82, 83, and back page).
"Simplex" Derailleur-(Photographs) circa Oct. 1970.
The Handbook of Cyclology, 7th Edition, p. 50, 1976.

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