| 摘要 |
<p>A container having a neck (2), which surrounds an opening (3) in the container, and a plastic collar (21), which can be screwed onto the neck and has a top side and an underside and an outer circumference. The neck is provided with a first screw thread and the collar is provided with a second screw thread (24). Beneath the first screw thread, the neck is provided with a blocking rib (7) which projects radially outwards. On the underside, the collar is provided with a tamper-evident ring (25), which ring is provided, on the inner circumference, with inwardly projecting flexible blocking members (27), which are distributed around the circumference, in such a manner that when the collar is being screwed onto the neck the flexible blocking members pass over the blocking rib, and when the collar is being unscrewed the blocking rib forms a stop for the blocking members, resulting in one or more parts of the collar being broken.</p> |
