Bicycle hub assembly
US7621842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2007 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Mar 7, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D41/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multi-speed internal bicycle hub transmission assembly includes a hub axle, a driver, a hub shell, a power transmission mechanism, a pawl and a pawl retracting mechanism. The driver is rotatably supported to the hub axle. The hub shell is rotatably supported to the hub axle. The power transmission mechanism is disposed between the driver and the hub shell for transmitting rotational power from the driver to the hub shell through at least a first power transmission path and a second power transmission path. The pawl is configured to transfer torque between the driver and the hub shell with torque being transferred along the first power transmission path. The pawl retracting member is configured to restrict movement of the pawl with torque transmitted along the second power transmission path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.