開栓明示機能を有するクロージャ（ａｔａｍｐｅｒ−ｅｖｉｄｅｎｔｃｌｏｓｕｒｅ）

摘要

A tamper-evident closure for a container comprises a first portion and a second portion, the first portion being connected or connectable to the second portion and removable therefrom. The closure is movable upon a first opening from a first position in which the portions are in a first relative relation to a second position in which they are in a second relative relation. The closure comprises means for preventing the portions from returning to the first position. The closure comprises a removable retention member which attaches the first and second portions together such that the member must be removed before the portions can be separated from each other.