Internal bicycle hub transmission having an operating unit disposed inboard of the free end of an axle
US6134980A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | May 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20426
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An internal hub transmission for a bicycle includes a hub axle having an axle axis for retaining the transmission to a bicycle frame, a driver rotatably supported relative to the hub axle, an output member rotatably supported relative to the hub axle, a power transmission mechanism disposed between the driver and the output member for communicating rotational force of the driver to the output member through a plurality of transmission paths, and an operation mechanism disposed in the hub axle for movement in the direction of the axle axis to select among the plurality of transmission paths. An actuating mechanism is mounted on the hub axle inboard of a free end of the hub axle for moving the operation mechanism in the direction of the axle axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.