Front derailleur with chainline controlling idler cog
US6045470A · kind A · utility
7Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Aug 17, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M9/131
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A front derailleur for shifting gears on a chain driven bicycle, the chain having a drive run and a return run from a plurality of chainwheels, uses a chain supporting idler cog to vertically control the chainline of the chain drive run and to also move transversely to shift the chain from one of the chainwheels to another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.