Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1997-05-19
1999-02-02
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
743375, 7447313, 7447314, 74489, 474 81, B62K 2302, B62M 912, B62M 2504
Patent
active
058650628
ABSTRACT:
A speed control method and device for a bicycle, aimed at synchronously controlling both front and rear derailleurs to achieve predetermined sequential combinations of front and rear gears of front and rear gear systems, respectively, for a gradual and smooth increase/decrease of speed of the bicycle.
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Friedman Mark M.
Herrmann Allan D.
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