| 摘要 |
<p>The system has a stop piston (2) sliding inside a stop body (4) in which a viscous fluid e.g. oil, is compressed during an insertion of the piston in the body. A dampening unit varies the action of the piston inside the body and has openings (10) realized in the thickness of the body. The body has a lower end that is opened to form a housing, where the housing permits and guides the sliding of the piston. The piston covers the openings, and the fluid present in the housing flows back out of the housing through a limited number of openings, when the piston is moved inside the housing.</p> |
