Power tool
US9815182B2 · kind B2 · utility
7Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jan 12, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25F5/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A screw driver (100) which comprises a motor (110) and a rotation transmission mechanism (120) is provided. The rotation transmission mechanism (120) comprises a driving gear (125), a spindle (150), a roller (141) and a retainer (130). The retainer (130) moves the roller (140) in a circumference direction of the spindle (150) and thereby a position of the roller (140) between a transmittable position and a non-transmittable position is switched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.