Patent ID: 11919607
Assignee: SHIMANO INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A bicycle rear derailleur for coaxial installation on a rear-wheel axis of a bicycle, the bicycle rear derailleur comprising:
a base element including a first attachment end being configured to be coaxially installed on the rear-wheel axis and a second attachment end;
a movable element movably arranged relative to the base element;
a linkage mechanism connecting the movable element to the base element; and
a chain guide arrangement rotatably connected to the movable element about a rotational axis;
the second attachment end being coupled to the linkage mechanism;
the first attachment end including a first arm and a second arm, which are arranged so as to be spaced apart from each other in an axial direction with respect to the rear-wheel axis, the first arm and the second arm being connected by an arm connecting; portion;
the base element including an angular position adjustment structure configured to adjust an angular position of the bicycle rear derailleur relative to a frame of the bicycle by rotating the first arm and the second arm about the rear-wheel axis; and
the angular position adjustment structure being disposed between the first attachment end and the second attachment end in a radial direction with respect to the rear-wheel axis, the angular position adjustment structure being disposed on the arm connecting portion.