Power impact tool
US7322427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jul 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/261
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
It is an object of the present invention to provide an effective technique to improve ease of operation of the power impact tool. The power tool of the present invention includes a tool body, a tool bit, a motor, first and second switches and a mode changing mechanism. The motor is driven only when both switches are in an on position. The first switch is biased in the off position. The second switch is biased in the last position operated. The mode changing mechanism switches between hammer operation modes such that in the first hammer mode, the user actuates the first switch while the second switch is locked in the on position and in the second hammer mode, the first switch is locked in the on position while the second switch is actuated. In the second hammer mode, actuating the second switch similar to a toggle switch operates the tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.