Chain tensioner for chain saw
US5896670A · kind A · utility
27Cited by
29References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Jul 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/7239
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chain tensioner for a chain saw has a cam member in positive engagement with a flange of a plate attached to the guide bar. Rotation of the cam member forces the guide bar away from a drive sprocket of the chain saw to tension the chain. The cam member is clamped in position to maintain the guide bar in the adjusted position. Flats on the cam member in abutment with the flange resist rotation of the cam member when in the adjusted and clamped position. A slot is provided in the cam member to facilitate rotating the cam to force the guide bar away from the drive sprocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.