| 摘要 |
<p>The invention concerns a screw top (2) comprising a skirt (6) closed by a base (4) and a tamperproof ring (12) linked to the skirt by frangible bridges (10), the tamperproof ring (12) comprising a lip (14) folded inwards and towards the top base. It further comprises axial stops (18) arranged between the tamperproof ring (12) and the skirt (6), as well as an undercut provided at the tamperproof ring base, on the side opposite to the top base (4). Said top can be produced in a single moulding/stripping operation in a mould comprising a fixed base opposite a mobile part or mould base, a stripper portion or stripper ring, a core designed to be lifted by a translation movement, without rotation, and mould slides placed between the mould base and the stripper portion.</p> |
