US 11,787,506 B2
Derailleur for human-powered vehicle
Takashi Furuya, Sakai (JP); and Kazutaka Fukao, Sakai (JP)
Assigned to SHIMANO INC., Sakai (JP)
Filed by SHIMANO INC., Sakai (JP)
Filed on Mar. 30, 2021, as Appl. No. 17/218,058.
Prior Publication US 2022/0315165 A1, Oct. 6, 2022
Int. Cl. B62M 9/136 (2010.01); B62M 9/1342 (2010.01)
CPC B62M 9/136 (2013.01) [B62M 9/1342 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A derailleur for a human-powered vehicle, comprising:
a base member configured to be mounted to the human-powered vehicle;
a chain guide movable relative to the base member;
a linkage structure configured to movably couple the chain guide to the base member; and
a biasing member configured to apply biasing force to at least one of the linkage structure and the chain guide,
the linkage structure including a first link pivotally coupled to the base member about a first link pivot axis,
the chain guide including a first chain guide pivotally coupled to the first link about a first guide pivot axis spaced apart from the first link pivot axis, the first chain guide including
a first guide body including a first guide surface configured to be in contact with a chain, and
a first guide protrusion protruding from the first guide body and pivotally coupled to the first link about the first guide pivot axis, the first guide protrusion being spaced apart from the first link in an axial direction with respect to the first guide pivot axis to define an intermediate space between the first guide protrusion and the first link in the axial direction, the intermediate space being free of a spring, and
the intermediate space is provided between the first guide protrusion and the biasing member in the axial direction.