Grip gear-shifter for actuating derailleur of bicycle
US6644143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2133
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A grip gear-shifter for being used in actuating a derailleur of a bicycle is provided. The grip gear-shifter includes a return spring, a resilient steel plate having a polyhedron-formed controlling pawl, a guiding ring having a guiding notch for guiding a cable, a first module for lodging and positioning said controlling pawl when the bicycle are in the state of shifting gears, and a second module having a projection and a positioning unit for operating in coordination with the return spring and the resilient steel plate, thereby forming a relative motion of the resilient steel plate and the first module to correctly shift gears when the bicycle are in the state of shifting gears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.