Power operated gear change assembly for bicycles
US5470277A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jun 9, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M25/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power operated gear change assembly for bicycles, which includes a gear change whose derailleur is displaceable by an electric geared motor and associated power supply accumulator, operated through a manual control device or detector for detecting the derailleur displacement, and a control circuit for controlling operation of the electric geared motor. The electric geared motor is directly fitted on the derailleur of the gear change, and the detector includes a transducer device placed in a remote position relative to the derailleur of the gear change and operatively connected thereto through a transmission device. The electric accumulator is rechargeable by means of a dynamo-electric unit incorporated in the derailleur of the gear change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.