| 摘要 |
An improved two-piece control cable adjustment device (20) for offsetting a change of relative length between the outer sheath (12) and control wire (18) operatively linking a control mechanism such as a bicycle shifter (20) or brake lever to an operating mechanism such as a derailleur (24) or brake. The adjustment device includes an adjuster nut (40) having a threaded bore (42) cooperating with a mounting member threaded shaft (30) and an indexing mechanism achieved by the relative elastic deformation of rotatably engaging protrusions (32) and/or detents circumferentially formed on the cooperating adjuster nut (40) and mounting member, thereby enables riders to sense each increment of stepped adjustment. The adjuster nut (40) is configured to protectively enclose both the cooperating threads (30) and engaging portion of the protrusions (44) and detents from environmental exposure thereby preventing the trapping of external particles in the threads, a primary concern for use in the harsh mud and dirt environment common to off-road biking, and in turn preventing the premature wear and replacement of parts. |
