Power tool
US7252157B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2004 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Apr 2, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/371
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
It is an object of the present invention to provide a power tool having a further improved vibration reducing performance. The representative power tool may comprise a tool bit, an actuating mechanism, a dynamic vibration reducer. The actuating mechanism drives the tool bit linearly by means of pressure fluctuations so as to cause the tool bit to perform a predetermined operation. The dynamic vibration reducer has a weight that reciprocates under a biasing force of an elastic element to reduce vibration of the actuating mechanism. The weight may be driven by means of pressure fluctuations caused in the actuating mechanism. According to the invention, the weight of the dynamic vibration reducer can be actively driven by pressure fluctuations in the actuating mechanism for driving the tool bit. Therefore, regardless of the magnitude of vibration acting on the power tool, the dynamic vibration reducer can be forcedly and steadily operated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.