Bicycle derailleur
US6629903B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M9/1346
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A derailleur for a bicycle is provided that is easy to operate. The derailleur basically has a mounting member, a chain guide and a chain guide positioning mechanism. The mounting member is adapted to be coupled to a portion of the bicycle. The chain guide is movably coupled to the mounting member. The chain guide is adapted to shift a chain of a bicycle in a transverse direction. The chain guide positioning mechanism has an actuating cam operatively coupled to the chain guide. The actuating cam is adapted to be coupled to a control element such as a cable. The actuating cam is arranged to rotate only in one direction in response to movement of the control element to move the chain guide from a first position to a second position. In the preferred embodiment, the chain guide positioning mechanism includes one-way clutch coupled to the actuating cam, and an indexing mechanism with an indexing element that is arranged to operatively apply a retaining force to the actuating cam. The one-way clutch has a ratchet fixedly coupled to the actuating cam and an actuating element with a pawl engaging the ratchet. The actuating element is adapted to be coupled to the control element such that …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.