Power tool
US9737984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2014 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/147
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
It is an object of the invention to provide a technique for enhancing the operability of a power tool.A representative screwdriver 100 is provided which has a motor 110 and a driving mechanism 120. The driving mechanism 120 has a rotation transmitting mechanism including a driving cam 137 and a driven cam 157, and a cam engagement state is switched by movement of the spindle 150 in a longitudinal direction of the spindle. The position of the spindle 150 in the longitudinal direction is detected by a detecting mechanism 162 that is disposed on the opposite side of the rotation transmitting mechanism from a front end region in the longitudinal direction of the spindle 150. A controller 180 controls the rotation speed of the motor 110 based on the detection result of the detecting mechanism 162 and drives the motor 110.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.