Bicycle chain
US7325391B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2007 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Mar 2, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M2009/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bicycle chain has an outer link with two outer link plates, an inner link formed with two inner link plates and a link pin connecting adjacent ones of the together. The link plates are configured to aid in smoothly shifting a chain moves between sprockets. The outer link plates have the outer link peripheral edges that are shaped differently. One of the outer link plates has an exteriorly facing surface with a first chamfered outer edge portion extending along a section of its outer link peripheral edge at a first end portion and a first reduced area part having a reduced radial dimension with respect to a radial dimension of the first end portion lying along a longitudinal axis. The inner link plates have center connecting portions with different minimum widths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.