IPC Definitions - January 01, 2012

B62M 9/122 - Definition fr

Definition statement

This group covers:

Electric or fluid assisted rear derailleurs and control methods therefor for shifting chains by rear derailleurs. Contrary to the directly manual actuated derailleur, these shifting devices are assisted by a small electric or fluid operated servos connected to the derailleur mechanism.

Informative references

Attention is drawn to the following places, which may be of interest for search:

Actuators for gearing speed-change mechanisms specially adapted for cycles with electrical or fluid transmitting systems

B62M 25/08