| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device which surely seals a part to be sealed, as of a lidded container or fiber drum, and also makes it possible to find, even in case unsealing is performed maliciously, fraudulent sealing easily after the unsealing. SOLUTION: A large flange 1 that is not insertable into the sealing through- hole of a body 7 to be sealed and a small flange 2 that is insertable into the sealing through-hole are connected together by a fitted part 3 and freely bendable/stretchable connecting legs 4 so that a space between the opposite flanges can be increased/decreased. The fitted part 3 is provided with an engagement projection 5 with a thin-wall low-tensile-stress part 5C so that it projects toward the small flange 2. An engagement recess 6 engageable with the engagement projection 5 is provided so as to be directed toward the large flange 1 from the small flange 2. The engagement projection 5 and the engagement recess 6 separated with the connecting legs 4 stretched increasing the space between both the opposite flanges 2 are engaged together by the connecting legs 4 bent narrowing the space between the opposite flanges, thereby forming a seal. When unsealing is caused in the sealed state, the low-tensile-stress part 5C is plucked off and the connecting legs 4 are consequently stretched.
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