Crankset assembly
US5766106A · kind A · utility
Inventor
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M9/105
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A crankset assembly employing a steel spider construction without adding excessive weight, and accommodating virtually unlimited combinations of bolt circle diameters and types of chain rings that include the crankset assembly. The crankset assembly may include a crank arm, a spindle piece attached to the crank arm, a radially extending spider fixed to the crankset assembly, at least two chain rings supported on the crankset assembly by the spider, and a plurality of connector elements attached to the spider at a corresponding plurality of spaced positions about the spider central axis. At least one of the chain rings is mounted to, and solely supported by, the plurality of connector elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.