Search International and National Patent Collections

1. (WO2018108490) TRANSMISSION FOR A BICYCLE

Pub. No.:    WO/2018/108490    International Application No.:    PCT/EP2017/080397
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Sat Nov 25 00:59:59 CET 2017
IPC: B62M 11/18
B62M 6/55
B62M 11/14
Applicants: ZF FRIEDRICHSHAFEN AG
Inventors: KALTENBACH, Johannes
GRIESMEIER, Uwe
ENGEL, Valerie
NITSCH, Matthias
Title: TRANSMISSION FOR A BICYCLE
Abstract:
The invention relates to a transmission for a bicycle, comprising an input shaft (1), which can be connected to a pedal crank shaft (2) for conjoint rotation, and an output shaft (3), which can be connected to an output wheel for conjoint rotation. The transmission is characterized in that the transmission has at least three, in particular exactly three, planetary gearboxes, which are operatively connected to the input shaft and the output shaft, wherein a single one of the planetary gearboxes has a stepped planet gear (4) having a first toothed region (5) having a first diameter and a second toothed region (6) having a second diameter.