| 摘要 |
PROBLEM TO BE SOLVED: To provide a plug of a beverage container for preventing, if a torsion spring for opening and closing a lid body breaks, the spring fragments from being erroneously drunken, and for improving the appearance of the beverage container.SOLUTION: A torsion spring 51 is stored in a storage part 50, whereas the opening 52 of the storage part 50 is covered with a cover member 53, and no clearance exists between the storage part 50 and the cover member 53. Therefore, the torsion spring 51 is broken so that its fragments can be prevented from falling into a drinking container 2 and from being erroneously drunken. Moreover, the torsion spring 51 cannot be viewed from the outside so that the appearance of the drinking container can be improved. |
