| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap capable of preventing content in a container from leaking outside, in a state that a lid body is closed.SOLUTION: An engagement part 13 of a cap body 4 is formed on the other end edge B on an opposite side of a hinge part 5 excluding the hinge part 5, and the cap body 4 has an extraction cylinder 14. In inside of a lid body 6, a holding cylinder 26 for holding an inside plug 25 for opening and closing an extraction mouth is provided. The inside plug 25 has a seal part 30 fitted in the extraction cylinder 14 in a state that the lid body 6 is closed, and when an outer periphery of the seal part 30 contacts an inner periphery of the extraction cylinder 14, the extraction mouth is closed by the inside plug 25. On the outer periphery of the extraction cylinder 14, a position correction member 32 is provided on a side close to the hinge part 5, and when the lid body 6 is closed, the position correction member 32 contacts the inner periphery of the holding cylinder 26, and pushes back the holding cylinder 26 to a side D of the hinge part 5. |
