Six link front derailleur
US8303443B2 · kind B2 · utility
20Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jun 19, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M9/1342
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A front derailleur for shifting a bicycle chain between chain rings of a bicycle crank set. The front derailleur may include an attachment mechanism for securing the derailleur to a bicycle frame member. The front derailleur may further include a chain guide for enclosing a bicycle chain and contacting the chain during shifting. The front derailleur may further include a six link movement mechanism adjustably affixed to the attachment mechanism and chain guide for selectively moving the chain guide and enclosed bicycle chain during shifting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.