Bicycle gear-shifting handgrip
US7373854B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 5, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Aug 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2042
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle gear-shifting handgrip includes an inner tube fixedly fit over a bicycle handlebar and an outer tube rotatably fit over the inner tube. A casing that is fixed to the handlebar is fit over the inner tube and defines axially spaced front and rear chambers, both surrounding the outer tube. A toothed ring and a detent ring are axially stacked over each other and received in the front chamber. The toothed ring is rotatably fixed but axially movable in the front chamber and has a surface forming plural sets of teeth that are axially biased by a spring to respectively engage detent projections formed on the detent ring. The detent ring is rotatable in unison with the outer tube to induce a camming action between the teeth and the detent projection. A cable-driving ring is received in the rear chamber and is rotatable in unison with the outer tube for pulling a cable coupled to a bicycle derailleur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.