| 摘要 |
A safety closure for a container has a disc-like top (1), a cylindrical skirt (3) downwardly dependent from the periphery thereof, which skirt is threaded to engage a corresponding thread on the neck of the container, and a substantially frusto-conically shaped skirt (5) provided with internal ribs (8, 18) for engagement with corresponding abutments (10) on the container. The frusto-conical skirt is deformable such that the ribs and abutments do not engage when the skirt is deformed, and has a wall thickness which increases gradually from the point (6) at which it merges into the cylindrical skirt to its outer end (7). |
