| 摘要 |
PROBLEM TO BE SOLVED: To stop the flow of a liquid at two places being the entrance and exit of a liquid channel by simple structure. SOLUTION: This cap has an outer cap 3 in the state of a bottomed cylinder fitted to the opening part of a container main body 2 in the state of being freely attachable and detachable, an inner cap 4 provided at the upper part of the cap 3 in the state of being rotatable with a hinge in a vertical direction to open and close the upper opening of the cap 3 and an engaging member 5 for engaging the cap 4 with the cap 3 in a closed state. A liquid through hole 35 is bored at the bottom wall 34 of the cap 3 to make a part between the wall 34 and the upper opening to be the liquid channel 37. A flow-in port seal part 71 for closely sealing the hole 35 and a flow-out port seal part 72 closely adhered to an inner peripheral wall in the neighborhood of the upper opening of the cap 3 are provided at the cap 4.
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