| 摘要 |
<p>A closure (1) and a container comprising: a pouring spout (2) having a neck (5) and a cover portion (6) closing said neck (5); a cap (4) which can be rotated about a longitudinal axis (A) to be fitted to, and removed from, the pouring spout (2); cam means (16, 17) for transforming a rotation impressed to the cap (4) into a stroke thereof having a rotational component about the same rotation axis (A) and a translational component along said axis (A) to couple/detach the cap (4) with/from the pouring spout (2); a weakening line (9) provided on the end (8) of the neck (5); first opening promoting means (25) provided on the cover portion (6) ; and second opening promoting means (26) provided on the cap (4) and arranged for engaging the first opening promoting means (25) upon removal of the cap (4) from the pouring spout (2) to separate the cover portion (6) from the neck (5) along the weakening line (9); the first and second opening promoting means (25, 26) comprise at least one further cam element (30) configured to increase locally the lifting thrust produced by the cap (4) on the cover portion (6) during removal of the cap (4) from the pouring spout (2).</p> |
