Method and arrangement for a sawchain
US9168671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2008 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Feb 8, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/909
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention concerns a method for a sawchain and a sawchain. According to the method according to the invention, a sawchain intended to be used for a sawing arrangement for a forestry harvester in order to prevent the whip-like movement of a sawchain that breaks during sawing, is achieved through a method that comprises the steps: —that the sawchain (1) is provided with a means (20) of limiting pivoting that allows a forwardly located link (3, 4, 5, 2) of the sawchain to pivot in a first direction relative to the subsequent link (3, 4, 5, 2) while limiting the ability of the forwardly located link to pivot in an opposite second direction relative to the subsequent link, —that the sawchain (1) is driven around a guide bar (9) with the aid of a driving wheel that is located at one end of the guide bar, —that sawing of a tree trunk is carried out through the guide bar (9) being turned around an axis of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.