A gear switching control device of an internal derailleur includes a plurality of planet gear speed change systems; a gear switching control unit; a plurality of axial ratchet control rings (21, 22, 23) for controlling action of a plurality of axial ratchets (17); said plurality of axial ratchets (17); and the plurality of axial ratchet control rings are serially connected by the same gear switching control unit; wherein the gear switching control unit comprises a track sleeve (2), one end of the track sleeve is installed with a force accept portion (2a) and another end thereof is installed with a linking rod (2b) which is used to serially connect the plurality of axial ratchet control rings; each of the axial ratchet control rings is formed with a respective connecting hole (21a, 22a, 23a); each axial ratchet control ring being installed with a cam or cam-like device (21b, 21c, 22b, 22c, 23b, 23c); said cams or cam-like devices each having a different operating moving range.
GEAR SWITCHING CONTROL DEVICE OF AN INTERNAL DERAILLEUR
VORRICHTUNG ZUR STEUERUNG DER GANGSCHALTUNG EINER INTERNEN SCHALTUNG
DISPOSITIF DE COMMANDE DE CHANGEMENT DE VITESSE D'UN DÉRAILLEUR INTERNE
2023-08-30
Patent
Electronic Resource
English
Bicycle derailleur gear, particularly a front derailleur gear, with improved reliability
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