Impact driving tool
US7921933B2 · kind B2 · utility
2Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2009 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/391
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a driving tool, a diameter of an intermediate member is enlarged to increase a mass of the intermediate member and an outside diameter of a cylinder at a position where the intermediate member is internally provided is enlarged in accordance with the enlarged diameter of the intermediate member. Further, in the driving tool, a bearing thickness of a ball bearing is reduced correspondingly to a dimension of the enlarged outside diameter of the cylinder and a washer is provided at a part where the ball bearing abuts on the cylinder in the forward and backward moving direction thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.