| 摘要 |
A moulding tool for producing mouldings from foamable plastic particles is equipped with improved devices for moulding projections or undercuts behind projections and depressions in the moulding wall in which the moulding tool element moulding said projections or depressions is mounted on a lifting element which is mounted in the vicinity of the mould wall so as to be pivotable and is movable, with support by means of a restoring and actuating spring, into its demoulding position moved back against the mould wall. The restoring and actuating spring and its guide devices are the only parts of this device which are to be arranged in the steam chamber of a moulding tool part. By arranging detent elements, that is to say projections and depressions, in the corner regions of the container circumference wall and of the lid rim, an effective tamper-proof seal can be provided. By arranging projections and depressions in the central region of two mutually opposite container walls, at the mutually overlapping wall strips of the container and of the lid, a flexible detent closure can be formed, which can be repeatedly operated. |
