| 摘要 |
PROBLEM TO BE SOLVED: To provide a tamper evidence structure of a cap which makes it possible to open a cap by normal cap-opening operation when opening the cap first, and besides makes it possible to discriminate cap-opening history.SOLUTION: A cap body 2 and a cover 3 of a cap 1 are coupled by means of a tamper evidence piece 5. The tamper evidence piece 5 is constituted of a cover side locking piece 45 locked on the cover 3 side, a cap body side locking piece 46 locked on the cap body 2 side, and each of easy-to-cut rod-like parts 60 (weakened part 47) connecting the cover side locking piece 45 and the cap body side locking piece 46. As a result, by opening the cover 3 as usual, when opening the cap first, the rod-like parts 60 of the tamper evidence piece 5 are cut, thereby making a container usable. It is possible to discriminate the cap-opening history by viewing the cut conditions of the respective rod-like parts 60 of the tamper evidence piece 5. |
