A bicycle transmission device for connected to an freehub body on a rear wheel, which has convex keys arranged radially on the periphery, is provided, including a connecting member, a fastener, and a cogset assembly. The connecting member includes a cylindrical body portion, connection keys protruding from periphery of the body portion, a cut groove passing through the body portion, a first and second connecting seats located on two sides of the cut groove. The inner wall of the body portion has concave grooves corresponding to the convex keys. The fastener is connected to the connecting seats to exert a force making them close. The cogset assembly includes a cogset seat and sprockets. The cogset seat has a first socket hole fitting around the connecting member, and connection grooves corresponding and connected to the connection keys; the sprockets with different chain teeth are connected to the cogset seat.
BICYCLE TRANSMISSION DEVICE
04.11.2021
Patent
Elektronische Ressource
Englisch
Europäisches Patentamt | 2017
|Bicycle shifter, bicycle transmission device, and bicycle electric system
Europäisches Patentamt | 2018
|BICYCLE SHIFTER, BICYCLE TRANSMISSION DEVICE, AND BICYCLE ELECTRIC SYSTEM
Europäisches Patentamt | 2017
|Bicycle shifter, bicycle transmission device, and bicycle electric system
Europäisches Patentamt | 2021
|