US 11,697,474 B2
Bicycle derailleur and link pin for bicycle derailleur
Naoki Fujimoto, Sakai (JP)
Assigned to SHIMANO INC., Sakai (JP)
Filed by SHIMANO INC., Sakai (JP)
Filed on Jun. 30, 2020, as Appl. No. 16/916,119.
Prior Publication US 2021/0403124 A1, Dec. 30, 2021
Int. Cl. B62M 9/132 (2010.01)
CPC B62M 9/132 (2013.01) 31 Claims
OG exemplary drawing
 
1. A bicycle derailleur comprising:
a base member having at least one first link-pin-receiving opening;
a chain guide movable relative to the base member from a lower-gear position to a higher-gear position to move a chain in an outward-shifting direction, the chain guide being movable relative to the base member from the higher-gear position to the lower-gear position to move the chain in an inward-shifting direction which is an opposite direction of the outward-shifting direction;
a motor unit having at least one second link-pin-receiving opening; and
a linkage structure comprising:
at least one link member configured to movably couple the chain guide to the base member, the at least one link member having at least one third link-pin-receiving opening; and
at least one link pin configured to pivotally couple the at least one link member to the base member about at least one link pivot axis,
one of the at least one link pin being configured to extend through the at least one first link-pin-receiving opening, the at least one second link-pin-receiving opening, and the at least one third link-pin-receiving opening, wherein
the at least one link member includes an inner link member,
the at least one link pivot axis includes an inner-link pivot axis,
the at least one link pin includes an inner link pin configured to pivotally couple the inner link member to the base member about the inner-link pivot axis,
the at least one first link-pin-receiving opening of the base member includes at least one first inner link-pin-receiving opening,
the at least one second link-pin-receiving opening of the motor unit includes at least one second inner link-pin-receiving opening,
the at least one third link-pin-receiving opening of the at least one link member includes at least one third inner link-pin-receiving opening that the inner link member has, and
the inner link pin is configured to extend through the at least one first inner link-pin-receiving opening, the at least one second inner link-pin-receiving opening, and the at least one third inner link-pin-receiving opening.