Bicycle derailleur
AssigneeShimano Inc.
InventorYoshiaki Nanko
Life of this patent
Estimating the term…
Abstract
A bicycle front derailleur has a fixed member, a movable member, linkage assembly and cable attachment assembly. The cable attachment assembly has a cable fixing bolt, cable fixing washer and a first resilient member. The first resilient member is arranged to retain the cable fixing washer on the shaft portion of the cable fixing bolt is located. The fixed member includes a derailleur fixing bolt, a derailleur fixing washer, and a second resilient member. The second resilient member is arranged to retain the derailleur fixing washer on the shaft portion of the derailleur fixing bolt.
Claims24
A bicycle derailleur comprising:
- a fixed member configured to be coupled to a bicycle frame;
- a movable member having a chain guide portion with a chain receiving slot configured to shift a chain of the bicycle in a transverse direction;
- a linkage assembly coupled between the fixed member and the chain guide portion to move the chain guide portion between a retracted position and an extended position;
- and
- a cable attachment assembly coupled to the linkage assembly, the cable attachment assembly including
- a cable fixing bolt having a head portion with a tool engaging surface and a shaft portion with threads that are received in a threaded hole of the linkage assembly,
- a cable fixing washer including an outer peripheral surface and an inner peripheral surface defining a bolt receiving opening in which the shaft portion of the cable fixing bolt is located;
- and
- a resilient member being retained on the shaft portion between the threads and the head portion, the resilient member being arranged to retain the cable fixing washer on the shaft portion of the cable fixing bolt is located.
A bicycle derailleur comprising:
- a fixed member configured to be coupled to a bicycle frame;
- a movable member having a chain guide portion with a chain receiving slot configured to shift a chain of the bicycle in a transverse direction;
- a linkage assembly coupled between the fixed member and the chain guide portion to move the chain guide portion between a retracted position and an extended position;
- and
- a cable attachment assembly coupled to the linkage assembly,
- the fixed member including
- a derailleur fixing bolt having a head portion with a tool engaging surface and a shaft portion with threads that are received in a threaded hole formed the fixed member,
- a derailleur fixing washer including an outer peripheral surface and an inner peripheral surface defining a bolt receiving opening in which the shaft portion of the derailleur fixing bolt is located;
- and
- a resilient member being retained on the shaft portion between the threads and the head portion, the resilient member being arranged to retain the derailleur fixing washer on the shaft portion of the derailleur fixing bolt.
Dependencies are inferred from the claim text.