Percussion device comprising a damping mechanism
US9764457B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2013 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jun 17, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/085
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A percussion device including a shank adaptor, a machine housing that contains a percussion piston that is arranged to carry out a reciprocating movement caused by the pressure from a hydraulic fluid and to strike the shank adaptor when the percussion device is in use. An elastic element is arranged radially outwards from the percussion piston to dampen the recoil from the shank adaptor. The machine housing has an inner surface that faces the percussion piston. The elastic element has an inner surface that faces the percussion piston and an outer surface that faces the inner surface of the machine housing. At least a part of the outer surface of the elastic element directly faces the inner surface of the machine housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.