Electronic derailleur

Abstract

An electronic derailleur includes a base portion for connecting to a frame of a bicycle, a movable portion, a first linkage, a second linkage, four pivot shafts, and a control module. The movable portion is movable relative to the base portion. Both the first linkage and the second linkage are pivotally connected to the base portion and the movable portion. The base portion, the movable portion, the first linkage, and the second linkage are pivotally connected as a four-bar linkage for moving the movable portion relative to the base portion. The pivot shafts are disposed between the base portion and the second linkage, between the second linkage and the movable portion, between the movable portion and the first linkage, and between the first linkage and the base portion, respectively. The control module is positioned relative to the base portion, the movable portion, the first linkage, or the second linkage and is disposed on one end of one of the four pivot shafts.

Dependencies are inferred from the claim text.