| 摘要 |
PROBLEM TO BE SOLVED: To obtain an extraction plug which is not likely to come off during an article distribution stage and can be easily removed after use for classified recovery by providing a lock ring held to an extraction plug body to a neck flange of a container body in a hanging stage so that it can be broken to be separable and by providing a preventive means against dropping-out and a break prevention means on the lock ring. SOLUTION: A lock ring 8 hangs from a lower end of an attaching cylinder 12 of an extraction plug body 7 through a plurality of thin small breaking pieces 20 whereby it is integrally provided while hanging so that it can be broken to be separable, while the lock ring 8 is equipped on an inner periphery with an anti-drop-off means 9 by placing an appropriate number of locking pieces 21 to be engaged with a neck flange 6 of a container body 1 so that the lock ring cannot drop off, and a cut 22 is provided at an appropriate part so that its ring shape can be broken to open thereby providing a break prevention means 10. Therefore, leakage can be prevented, mixture of a foreign matter can be prevented, mischief can be prevented or the like during an article distribution stage, convenience in ejection and prevention for leakage or the like can be realized during a consuming stage, and at the time of disposal it can be served for classified recovery as a resource without interference. |
