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1. (WO2017196003) BICYCLE TRANSMISSION HUB

Pub. No.:    WO/2017/196003    International Application No.:    PCT/KR2017/004367
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Wed Apr 26 01:59:59 CEST 2017
IPC: B62M 11/06
B62M 25/04
B60B 27/02
B62M 11/16
Applicants: KIM, Bok Soung
김복성
KIM, Do Hwan
김도환
BYGEN CO., LTD.
주식회사 바이젠
Inventors: KIM, Bok Soung
김복성
KIM, Do Hwan
김도환
Title: BICYCLE TRANSMISSION HUB
Abstract:
A bicycle transmission hub according to the present invention comprises: a hub shaft to which a rotation force is input, the hub shaft having a plurality of first pawls arranged on the outer peripheral surface thereof; a transmission control means for controlling the first pawls to appear and disappear; a plurality of driving gears, each of which has a ratchet formed on the inner peripheral surface thereof to receive a rotation force transferred by the first pawls, the driving gears having a different number of teeth, the hub shaft extending through the center of each of the driving gears; a plurality of driven gears, which are engaged with the driving gears, respectively, have a different number of teeth, and rotate while being coupled to each other; an output wheel, which rotates while being coupled to a driving gear adjacent thereto among the driving gears and has a second pawl disposed on the outer peripheral surface thereof; and a hub shell, which has a wheel spoke connected thereto and has a ratchet formed on the inner peripheral surface thereof to receive a rotation force transferred by the second pawl.