| 摘要 |
PROBLEM TO BE SOLVED: To open or close a plug easily and rapidly and to close the plug firmly by a method wherein when a cap is engaged, the lower end of a push plate presses an elastic pour cylinder against the top surface of an inwardly directed flange to close the elastic pour cylinder. SOLUTION: The plug for pouring liquid comprises a mount member B, a cap C, and a pour member D. The mount member B comprises mount cylinders 2, 4, and an engaging plate 5 is erected on the cylinder 4. In the cap C, a push plate 7 is extended downward from the top wall of a cylindrical body and the peripheral wall of the cylindrical body is adapted to be releasably engaged with the plate 5 in a male-female relationship. In the pour member D, a liquid inlet cylinder 10 whose top side is closed is fitted into a flange hole of an inwardly directed flange 3 and flexible elastic pour cylinder 12 is fowardly protruded from the front of the liquid inlet cylinder 10. And the length of the cylinder 12 forwardly protruding and the length of the plate 7 are determined so that when the cap C is fitted on the plate 5, the lower end of the plate 7 presses the cylinder 12 against the top surface of a half forward portion of the flange to close the forward end part of the cylinder 12. |
