Bicycle chain rings with ramps
US8506436B2 · kind B2 · utility
14Cited by
28References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2011 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Dec 27, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention include bicycle chain rings for bicycles having specially shaped ramps, tapers and profiled teeth for improved shifting performance. Additional embodiments of the bicycle chain rings of the present invention may be configured with one or more additional features formed within the chain rings including a transition slide, a tapered ramp face, a ramp bridge, a ramp lead, a trailing transition slide and a wear pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.