Electrical power tool
US8276685B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Dec 21, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In view of the above problem, the present invention is to provide an electrical power tool which enables a user to intuitively grasp a rotation direction and a rotation speed of a tip tool. The electrical power tool 1 comprises a chuck 2 provided at a tip of a tool body 3, and rotatable with a tip tool held, and an operation switch 7 having operation protrusions 6 exposed to both side surfaces of a tool body 3 so as to be able to operate, respectively bilaterally symmetrically protruded with a rotation axis of the chuck 2 therebetween, coaxially rotatable with the chuck 2, and urged so as to be self-restored to a neutral position. The chuck 2 is rotated in a direction according to a rotation direction of the switch 7 at a speed according to a rotation angle from the neutral position of the operation switch 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.