| 摘要 |
PROBLEM TO BE SOLVED: To add the liquid dripproof function to a mouth B1 of a vessel B. SOLUTION: An auxiliary member 20 comprising an insertion part 21 to be adapted to the mouth B1 of the vessel B, a dripproof outer flange 21a continuous to an upper part of the insertion part 21, and a connection part 22 formed in the insertion part 21 via a thin-walled part 23 is combined with a screw type cap body 10. When the cap body 10 is mounted on the mouth B1, the thin-walled part 23 is broken and the insertion part 21 is inserted in the mouth B1, and the auxiliary member 20 can add the liquid dripproof function to the mouth B1 via the outer flange 21a. |
