| 摘要 |
<p>An opening device for a packaging container (74), a screw cap for use in such an opening device and a method of forming such an opening device are provided. The opening device comprises a neck portion (76) and a screw cap (10, 34). The opening device comprises a wall (20, 40) of the first part of the screw cap having a weakening (22, 42) extending in a circumferential direction (C) of the first part and a recess (26, 46) extending in a longitudinal centre axis direction (L) of the first part. The recess is arranged to receive a projection (78) of the neck portion, which projection is directly injection-moulded in the recess. A tamper flap (28, 48) of the first part, which tamper flap is defined by the weakening and the recess, is automatically deformable in connection with a first time opening of the packaging container by cap rotation.</p> |
