Selector for a bicycle gear mechanism

US6216553A · kind A · utility

Assignee

• SRAM DEUTSCHLAND GmbH · DE

Inventors

• Robert Wessel · Würzburg, DE
• Markus Arbeiter · Würzburg, DE
• Bernhard Johanni · Oberwerrn, DE

Key dates

• Filing date: Dec 4, 1998
• Grant date: Apr 17, 2001
• Expiry date: Dec 4, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20438
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A selector for a bicycle gear mechanism. The selector has a housing fastened to a portion of a bicycle frame, a cable inlet, and a rotatable drum having a control cable wound onto for effecting cable travel. The selector also includes a rotary bushing for operating the selector and a mechanism for superimposing a correction or overshift travel on the cable travel. The mechanism includes a pivoting lever for guiding the control cable and a correction cam having a profile configured to provide the requisite correction travel for each gear stage as the rotatable drum is rotated.