Actuator device and relative nut for a bicycle gearshift,...

Details Actuator device and relative nut for a bicycle gearshift,... Actuator device and relative nut for a bicycle gearshift,...

2004-08-04

2011-10-11

King, Bradley (Department: 3657)

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Condition responsive

C474S080000, C474S082000, C474S078000, C074S473120

Reexamination Certificate

active

08033937

ABSTRACT:
An actuator device for a bicycle gearshift is provided. The actuator comprises an actuation mechanism, driven by a drive member and in turn to drives a derailleur of the gearshift. The mechanism comprising a member which—in the case of a knock to the mechanism—is subjected to a stress; the member is capable of elastically yielding when subjected to a stress above a predetermined stress threshold.

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