| 摘要 |
<p>The platform (2) has an ejector shield (10) moved inside a body between a rest position (R) and a maximal ejection position. A main telescopic jack (12) e.g. single-acting hydraulic jack, is interposed between a carrier structure (3) and the shield. A jack inclination modifying unit is formed by a carriage (13) and a guiding path (14). The unit places a jack axis (delta) in a position inclined with respect to a translation direction (DELTA) when the shield is in rest position, and in a position parallel to the direction during displacement of the shield towards the ejection position.</p> |
