Free wheel clutch mechanism for bicycle drive train
US7850577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2009 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Aug 4, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/09
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A clutch mechanism may be positioned in engagement with a slave sprocket of a drive train and a hub of a flywheel to create a frictional engagement between the sprocket and the hub, and to establish a break-free force threshold. When the drive train is actuated in the forward direction, the slave sprocket and the hub may move together, and when the drive train is actuated in the rearward direction under the influence of a force greater than the break-free force threshold, the clutch mechanism may slip between the slave sprocket and the hub, allowing the slave sprocket and the flywheel to move independently of one another. The clutch mechanism may also include a spring tensioner whereby the break-free force may be adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.