Bicycle gear changer

Details Bicycle gear changer Bicycle gear changer

1995-08-24

1997-11-11

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Hand operated

74489, 74506, F16C 118, B62K 2304

Patent

active

056851987

ABSTRACT:
A derailleur activating device attachable to the handlebar of a bicycle also having a frame and a derailleur with a gear cable, wherein the device has a bracket tube secured to the handlebar of the bicycle, a shifting sleeve rotatably mounted on the bracket member, a pulley rotatably mounted on the shifting sleeve and a gear cable with an end of the gear cable attached to the bracket tube. The cable is wrapped partially around the pulley such that, when the shifting sleeve is rotated, the pulley is displaced causing the gear cable to be pulled such as to shift the gears of the derailleur.

REFERENCES:
patent: 3633437 (1972-01-01), Ishida
patent: 4232564 (1980-11-01), Yamasaki
patent: 4900291 (1990-02-01), Patterson
patent: 4938733 (1990-07-01), Patterson
patent: 5102372 (1992-04-01), Patterson et al.
patent: 5241877 (1993-09-01), Chen
patent: 5315891 (1994-05-01), Tagawa
patent: 5390565 (1995-02-01), Tagawa et al.

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