Front derailleur

Details Front derailleur Front derailleur

1978-02-22

1980-04-29

Byers, Jr., Nile C.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

280236, B62M 912, B62M 2500, F16H 1108

Patent

active

041999983

ABSTRACT:
A front derailleur for a bicycle, which is used to switch a driving chain to each of at least two sprockets, is provided with a fixing member, a chain guide and an adjuster provided between the fixing member and chain guide. The chain guide is supported with respect to the fixing member in relation of being movable axially of the sprockets and toward at least two positions corresponding to the sprockets respectively, and the adjuster is capable of desirably adjusting the chain guide in its position with respect to the fixing member correspondingly to each of the sprockets in use and has a sustainer for maintaining the adjuster position of the chain guide.

REFERENCES:
patent: 2697975 (1954-12-01), Buhr
patent: 3813955 (1974-06-01), Huret et al.
patent: 4030374 (1977-06-01), Isobe

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