| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum bottle having a simple structure without liquid leakage when tumbling, in the vacuum bottle which is provided with the plug structure made up of a combination of an outer plug and an inner plug. SOLUTION: In the plug structure made up of a combination of the outer plug 8 which opens/closes an opening section 4 of the vacuum bottle body 1 and the inner plug 9 which opens/closes a liquid passage 37 formed in the outer plug 8, the outer plug is fitted movably up and down so as to be capable of opening the opening section 4 of the vacuum bottle body 1, and the inner plug is fitted movably up and down so as to be capable of opening the liquid passage 37, in terms of the structure. |
