Bicycle drive with automatic variator and continuous controller e.g. for bicycle drive, has pedal shaft and tensioner with movable part connected to driving disk by large thread connected to pedal shaft

摘要

The bicycle drive marked by automatic Variator has a pedal shaft (1), a driving disk (2), a driven disk (6), a belt (8), and a tensioner (9). A movable part (2b) is connected to driving disk by a large thread connected to the pedal shaft. The mobile part of the driving disk is pressed in slightly by a combined spring (3) onto the driving disk. The stress of the spring (3) is adjusted by a nut (4).