Powered reciprocating saw and clamping mechanism
US6449851B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1998 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Jan 29, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D51/046
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a powered reciprocating saw, in particular, to a pruning saw. To simplify use of the saw, a clamping mechanism is provided which holds an object in position while it is sawed. The clamping mechanism includes a clamping arm that is mounted at the front portion of the saw housing near the blade by a one way rotary clutch such that the arm can freely rotate in only one direction. During use, the saw vibrates due to its reciprocating parts. Since the clamping arm has a center of mass spaced apart from the axis of rotation provided by the one way rotary clutch, a progressive rotational movement of the clamping arm results which thereby automatically closes to clamp the object to be cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.