Bicycle chain rings with ramps
US9791033B2 · kind B2 · utility
19Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed are bicycle chain rings for bicycles having specially shaped ramps with lifting surfaces for improved up-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.