Multiple sprocket, multiple function chain guide
US7059983B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 20, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jun 4, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0865
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Chain guides for the front sprockets of bicycles are disclosed. More particularly, the chain guides are adapted or configured for bicycles that have multiple (usually 2 or 3) sprockets/chain rings mounted to the crank assembly. The setup is provided to freely allow shifting between the gears. All of the chain guide variations presented are provided with an outer flange attached to a roller section so that these portions roll together with the chain they restrain. Additional optional features include aspects to do with roller positioning, bracket mounting, roller configuration and supplemental chain restrain means (including a stop/post member and inner roller flange.)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.