Bicycle generator hub
US7288865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Apr 26, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62J6/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle generator hub is mounted to the front fork of a bicycle and includes a hub shaft, a hub shell, bearings, a generator mechanism and first and second magnetic flux recirculation members. The hub shaft is non-rotatably mounted to the front fork. The hub shell is disposed around the surface of the hub shaft. The bearings are disposed between the hub shell and the hub shaft to enable the hub shell to rotate relative to the hub shaft. The generator mechanism has a coil mounted to the hub shaft and a magnet unit disposed such that the generator mechanism generates electric power via the rotation of the hub shell relative to the hub shaft. The first and second magnetic flux recirculation members are disposed on the hub shaft or the hub shell and return a leaked magnetic flux to the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.