| 摘要 |
A mould (10) for the injection moulding of hollow products (1) or products with recesses and made from a plastic which quickly expands after removal from the mould, has two mould parts (12, 14) and a one-piece core (18) surrounded thereby. The core (18) within the mould rests with an extension (20) against both mould parts (12, 14). This extension (20) is movably supported on a guide column (22, 24) to be removed from the respective mould parts (12, 14) upon opening of the mould. A compression spring (28, 30) is provided in one of the mould parts (12, 14) which is supported against the mould part (12 or 14) and the core (18).
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