Motor unit for an assisting apparatus for changing speeds in a bicycle transmission
US6899649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2002 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M25/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control apparatus is provided for a bicycle shift control device that uses power from a rotating member to assist the operation of a bicycle transmission, wherein the shift control device includes an input transmission member that requests assistance of the rotating member and an output transmission member that is assisted by the rotating member. The control apparatus comprises an input transmission member drive member that moves at least to a neutral position, to an upshift position and to a downshift position; an input drive member position sensor operatively coupled to the input transmission member drive member; and a motor operatively coupled to the input transmission member drive member. A control unit is operatively coupled to the input drive member position sensor and to the motor to move the input transmission member drive member to at least one of the neutral position, the upshift position and the downshift position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.