| 摘要 |
PROBLEM TO BE SOLVED: To keep a stable state and also to prevent an atmosphere from entering a container to prevent contamination inside the container by supporting a rise of internal pressure in the container even if a diameter of a tip of a pouring cylinder port increases in a closure structured between the tip of the pouring cylinder port of an inner lid and a top plate of a cap in a push-out container. SOLUTION: The push-out container comprising a container A for filling contents, an inner lid B having a pouring cylinder attached thereto and a cap C attached to the inner lid B has a small protrusion (a) protruding at a tip of a pouring cylinder port 12 of the inner lid B. A flexible top plate (b) of the cap C in contact with the small protrusion (a) can separate from the small protrusion (a) due to a rise in internal pressure in the container, and a skirt-like valve (c) is peripherally provided separately from the cap C above a threaded portion of the inner lid B to be screwed with the cap C, thereby allowing an increased pressure inside the container to go out and also preventing an atmosphere from entering. |
