Derailer for a bicycle

Details Derailer for a bicycle Derailer for a bicycle

1976-11-01

1978-08-15

Wyche, Benjamin W.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

F16H 1104

Patent

active

041063562

ABSTRACT:
A derailer for a bicycle, comprising a fitting member, a movable member, and a connecting member for movably connecting the movable member with the fitting member, at least one control member swingable independently of the movable member, a spring energized by the swing of the control member, and a positioning device provided between the control member and one of the fitting member, movable member and connecting member and serving to positionally set a chain guide on the movable member with respect to one of a plurality of sprockets, so that the speed-changing stage previously desired may be selected when the pedals stop rotating regardless of whether the bicycle is at a standstill or coasting.

REFERENCES:
patent: 3535950 (1970-10-01), Shimano et al.
patent: 3890847 (1975-06-01), Dian
patent: 3896679 (1975-07-01), Huret et al.
patent: 3903751 (1975-09-01), Dian
patent: 3974707 (1976-08-01), Nagano
patent: 3979962 (1976-09-01), Kebsch
patent: 4027542 (1977-06-01), Nagano
patent: 4030375 (1977-06-01), Nagano

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