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
Dispositif de commande assurant des positions multiples preetablies et controlees, applicable en particulier aux changements de vitesse pour les cycles et vehicules similaires
Adaptation de divers dispositifs de commande a systeme alternatif a des changements avant et arriere pour cycles et vehicules assimiles. dispositif de changements de vitesses avant ou arriere a commande alternative pour cycles et vehicules assimiles