Device for displaying the gear parameters of a bicycle or the like
US4859984A · kind A · utility
22Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62J50/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A device for displaying the gear parameters of a bicycle comprises a sensor for detecting the position of the member (or members) for controlling the gear-change, and display means connected to the sensor means and able to supply a signal indicative of the ratio engaged. In a preferred embodiment, the number of teeth of the two gear-wheels (front and rear) on which the chain is engaged are displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.