Pressure medium operated impact mechanism
US5755292A · kind A · utility
Inventors
Key dates
| Filing date | Jun 2, 1997 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jun 2, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D51/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pressure medium operated reciprocating impact mechanism has at least one working member (7) and at least one stop member (15), which are axially movable with respect to each other, and a working chamber (22) for pressure medium is arranged in at least one of them and is opened towards the other member. One of the members has an opening (39) emerging into the working chamber for feeding pressure medium to the working chamber. The impact mechanism comprises an arrangement (21) for sealing the working chamber in the position in which the members are brought most together and allow pressure medium to escape out of the working chamber when a predetermined relative position of the members is reached during their movement apart. Furthermore, the impact mechanism comprises members (34, 35, 36) adapted to be actuated by the relative movement of the stop member and the working member and by this actuation during the movement of these members apart arrive to a state in which they obstruct the supply of compressed medium to the chamber and allow the supply during the movement of these members towards each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.