| 摘要 |
PROBLEM TO BE SOLVED: To obtain a safety device capable of realizing a structure which reliably indicates that an unsealing mechanism has been manipulated before between a closed position and an open position, namely, whether an unsealable container has been unsealed before, by an unsealing and reclosing mechanism of a type in which its manipulation is simple and easy. SOLUTION: At a closed position of an unsealing mechanism, a tongue-shaped protrusion 9 extends through a slit 15 and enters a recess 14 in an unsealable part. Accordingly, the protrusion 9 can partly be seen from the upper side of the unsealing mechanism until such time that a movalbe part 4 is displaced to an open position where the protrusion 9 irreversibly leave the recess 14 and that the unsealing mechanism indicates evidently and visually that it has been unsealed before. |
