Bicycle derailleur having positive speed position retention

Details Bicycle derailleur having positive speed position retention Bicycle derailleur having positive speed position retention

1979-02-15

1980-10-28

Husar, C. 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...

280236D, F16H 722, F16H 700

Patent

active

042299870

ABSTRACT:
A four member derailleur is disclosed having a control element which includes a plurality of engageable portions corresponding to the number of speed change stages mounted to one of the four members and a retainer for engaging with or disengaging from the engageable portions to keep a movable member of the four members in a proper position. The derailleur also includes means for moving the retainer in the direction of disengaging from each of the engageable portions so that when the movable member returns, through action of a return spring, the retainer may disengage from each of the engageable portions allowing the return movement of a chain guide.

REFERENCES:
patent: 3974707 (1976-08-01), Nagano
patent: 4030375 (1977-06-01), Nagano
patent: 4037484 (1977-07-01), Morse
patent: 4132119 (1979-01-01), Nagano et al.

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