Gearshift for bicycle gears

US6095010A · kind A · utility

Assignee

• SRAM DEUTSCHLAND GmbH · DE

Inventors

• Markus Arbeiter · Würzburg, DE
• Martin Assel · Aichholzhof, DE

Key dates

• Filing date: Mar 4, 1999
• Grant date: Aug 1, 2000
• Expiry date: Mar 4, 2019

Classification

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

Abstract

A gearshift for bicycle gears includes an operating lever arranged so as to be rotatable around a stationary central axis for controlling an operating part arranged in a housing. The operating part is also rotatable around the central axis and has a take-up groove for receiving a gear-shifting cable, whereby a latch interacts with a tooth mechanism on the operating part for winding the cable. The gearshift further includes a release-and-hold mechanism consisting of a first latching disk having a first latching segment and a second latching disk having a second latching segment connected to the operating part, and of a release lever that interacts alternately with the first latching segment and the second latching segment. Arranged on the release lever are a first latching lug and a second latching lug, which alternately engage with the first latching segment and the second latching segment. The release lever is mounted pivotally about a rotational axis arranged substantially perpendicularly relative to the central axis in a stationary fashion. An advantage of the invention lies in the simple operability of the operating lever and the release lever, whereby attention has been given …