| 摘要 |
PROBLEM TO BE SOLVED: To unseal a seal when a lid of a one-operation plug is fitted to a body by providing a pilfer proof seal part at a mouth part of a plug device. SOLUTION: In a plug device of a container provided with proof function in an unused condition, a plug device 3 capable of opening a lid in one operation is provided at a mouth part 2 of a container body 1, an opening of a plug body 4 of the plug device 3 is broken by a needle means, and closed by an unsealable closing means, the needle means capable of unsealing the closing means is provided on an inner surface of the lid part of the plug device 3, the needle means is held separately upward of the closing means in an unused condition, and the needle means is advanced toward the closing means when in use. |
