Arrangement for the passive capture of a broken saw chain
US9656406B2 · kind B2 · utility
0Cited by
13References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2013 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Dec 5, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B17/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An arrangement to capture passively a broken saw chain of a chain saw with a guide bar that is arranged such that it can pivot, including a stationary screen that forms part of a sawing box and that covers a rear part of the saw. In order to achieve an inexpensive and efficient protection there is arranged between an end surface of the screen and the guide bar an energy-absorbing brake member that is sufficiently elastic or flexible to receive the kinetic energy from a broken saw chain, to direct kinetic energy away from the chain and to regain its normal form after it has suffered an impact from and been deformed by the chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.