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B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
B62M9/131—Front derailleurs
B62M9/134—Mechanisms for shifting laterally
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FR926197D1946-04-271946-04-27Changement de vitesse par déraillement de chaîne au pédalier pour bicyclettes, tandems ou similaires
ExpiredFR926197A
(fr)
Changement de vitesse pour bicyclettes, par dérailleur avec levier fourchette portegalet oscillant au gré de la position transversale et angulaire de la chaine