Bicycle derailleur

Patent metadata

Field	Value
Publication number	US-2018244346-A1
Application number	US-201815902196-A
Country	US
Kind code	A1
Filing date	Feb 22, 2018
Priority date	Feb 24, 2017
Publication date	Aug 30, 2018
Grant date	—

Abstract

A bicycle derailleur comprising a chain guide movable between intermediate positions. An actuation arm associated with the derailleur has a cable seat formed it. A cable-clamping washer includes with a cable-bending appendage that is insertable in the seat of the actuation arm. The actuation arm cooperates with the cable-bending appendage to lock an actuation cable in the desired position.

First claim

What is claimed is:

1 . A bicycle derailleur comprising:
a chain guide configured to interact with a transmission chain of a bicycle and movable between a plurality of intermediate positions comprised between an inner position and an outer position; a fixed body configured for being fixedly associated with a part of a frame of a bicycle; an outer connection element rotatably connected to the fixed body about a first articulation axis (A) and rotatably connected to the chain guide about a second articulation axis (B) parallel to the first articulation axis (A); an inner connection element rotatably connected to the fixed body about a third articulation axis (C) and to the chain guide about a fourth articulation axis (D); an actuation arm hinged to the fixed body about the first articulation axis (A); and, a cable-clamping washer with a cable-bending appendage having predetermined dimensions that are mate with in a seat formed in the actuation arm; said seat extending along a first direction (F) and being provided with a first insertion opening and a second insertion opening, opposite one another and selectively engageable by said cable-bending appendage of the cable-clamping washer.

2 . The derailleur according to claim 1 , wherein said first direction (F) is substantially parallel to said first articulation axis (A).

3 . The derailleur according to claim 1 , wherein said seat in the actuation arm crosses an entire thickness of the actuation arm along said first direction (F).

4 . The derailleur according to claim 1 , wherein said seat in the actuation arm is formed on a portion of the actuation arm facing the way of the inner connection element.

5 . The derailleur according to claim 1 , wherein said cable-bending appendage extends in a direction substantially perpendicular to an inner surface of said cable-clamping washer facing said actuation arm.

6 . The derailleur according to claim 1 comprising at least one cable-guiding groove formed on at least one of said cable-clamping washer and said actuation arm.

7 . The derailleur according to claim 6 , wherein said cable-guiding groove is formed on an inner surface of the cable-clamping washer.

8 . The derailleur according to claim 5 , wherein said inner surface of the cable-clamping washer comprises a pair of cable-guiding grooves that are substantially parallel to one another and spaced apart.

9 . The derailleur according to claim 8 , wherein respective cable-guiding grooves of said pair of cable-guiding grooves are arranged on opposite sides with respect to a aperture of the cable-clamping washer.

10 . The derailleur according to claim 8 , wherein said cable-bending appendage is arranged between said pair of cable-guiding grooves.

11 . The derailleur according to claim 1 , wherein said seat in the actuation arm is distal from said first articulation axis (A).

12 . The derailleur according to claim 1 , wherein said seat in the actuation arm is a groove on a rear surface of the actuation arm facing the fixed body.

13 . The derailleur according to claim 1 further comprising a second seat in the actuation arm that extends along a direction parallel to said first direction (F) and provided with a first insertion opening and a second insertion opening opposite one another and dimensioned for engagement with said cable-bending appendage of the cable-clamping washer.

14 . The derailleur according to claim 1 , wherein said actuation arm has a projection that extends along a direction parallel to said first direction (F) and has opposite ends that extend away from said actuation arm.

15 . The derailleur according to claim 1 , wherein the derailleur is a bicycle front derailleur.

16 . The derailleur according to claim 2 , wherein said seat in the actuation arm crosses an entire thickness of the actuation arm along said first direction (F).

17 . The derailleur according to claim 2 , wherein said seat in the actuation arm is formed on a portion of the actuation arm facing the way of the inner connection element.

18 . The derailleur according to claim 17 , wherein said seat in the actuation arm is formed on a portion of the actuation arm facing the way of the inner connection element.

19 . The derailleur according to claim 18 , wherein said cable-bending appendage extends in a direction substantially perpendicular to an inner surface of said cable-clamping washer facing said actuation arm.

20 . The derailleur according to claim 2 , wherein said cable-bending appendage extends in a direction substantially perpendicular to an inner surface of said cable-clamping washer facing said actuation arm.

21 . The derailleur according to claim 5 , comprising at least one cable-guiding groove formed on at least one of said cable-clamping washer and said actuation arm.

22 . The derailleur according to claim 21 , wherein said cable-guiding groove is formed on said inner surface of the cable-clamping washer.

23 . The derailleur according to claim 21 , wherein said actuation arm has a projection that extends along a direction parallel to said first direction (F) and has opposite ends that extend away from said actuation arm.

Assignees

• Campagnolo Srl

Inventors

• Minto Marco
• Feo Nicola

Classifications

• B62M9/137 Primary

  Mounting or guiding of cables · CPC title

• B62M9/136

  Chain guides; Mounting thereof · CPC title

• B62M9/1342

  characterised by the linkage mechanisms · CPC title

• B62M9/134 Primary

  Mechanisms for shifting laterally · CPC title