Impact tool
US8267191B2 · kind B2 · utility
10Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Dec 26, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/065
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In an upper surface of a crank housing is provided an inlet for grease which is configured to be openable and closable by a cap. A vibration damping mechanism, which includes a counterweight provided with a connecting pin loosely fitted in a connecting hole of an eccentric pin when the cap is attached, is mounted in the cap, whereby the vibration damping mechanism is allowed to be taken in and out of the crank housing through the inlet by attachment and detachment of the cap to and from the inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.