Power tool
US9364944B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2010 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/255
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided is a power tool which is capable of more reliably detecting excessive reaction torque acting on a tool body. More specifically, provided is a handheld power tool which causes a tip tool to rotate so as to carry out a predetermined machining operation, the handheld power tool comprising a tool body, a motor which is housed in the tool body and causes the tip tool to rotate, a first sensor which detects the torque state of the tip tool, a second sensor which detects the motion state of the tool body, and a torque cut-off mechanism which cuts off the transmission of torque between the motor and the tip tool. The torque cut-off mechanism is configured to cut off the transmission of torque on the condition that the first sensor and the second sensor respectively detect a preset threshold value for the first sensor and the second sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.