Reciprocating cutting tool
US9573207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Dec 20, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D51/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A jigsaw includes a motor, a rod having a blade attached thereto, a power transmission portion that converts rotation transmitted from the motor to vertical movement of the rod to vertically move the blade, and a counterweight that moves vertically in a direction of the vertical movement of the rod outside a range of the vertical, movement of the rod and the blade. At least a part of the counterweight is disposed so as to cross an extended line of a trajectory of the vertical movement of the rod. The counterweight moves vertically independently of the vertical movement of the rod which is produced by the power transmission portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.