US 12,227,264 B2
Bicycle rear derailleur
Atsushi Komatsu, Sakai (JP); and Satoshi Idogaki, Sakai (JP)
Assigned to Shimano Inc., Sakai (JP)
Filed by SHIMANO Inc., Sakai (JP)
Filed on Feb. 17, 2023, as Appl. No. 18/171,034.
Application 18/171,034 is a continuation of application No. 16/410,276, filed on May 13, 2019, granted, now 11,608,139.
Prior Publication US 2023/0202619 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B62M 9/122 (2010.01); B62M 25/08 (2006.01)
CPC B62M 9/122 (2013.01) [B62M 25/08 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A bicycle rear derailleur comprising:
a base member including a mounting portion configured to be attached to a bicycle frame, the mounting portion having a mounting opening through which a central axis of a hub axle passes in a mounting state of the bicycle rear derailleur, the mounting portion being free of any joint;
a movable member movably coupled relative to the base member;
a linkage structure operatively connecting the movable member to the base member; and
at least one of a motor and a first wireless communication unit, the at least one of the motor and the first wireless communication unit being at least partially disposed on the base member, wherein
the mounting portion includes a first base portion and a second base portion spaced apart from the first base portion in an axial direction along the central axis, and
the first wireless communication unit is disposed between the first base portion and the second base portion in the axial direction.