| 摘要 |
<p>A spout set in a liquid container, consisting of a pouring port element (2) fixed to the opening of the liquid container, an unsealing blade (4) inserted into a cylindrical portion of the element (2) and provided at its lower edge with a cutting member opposed to a film, and a cap (3) rotatably fitted on the cylindrical portion of the element (2). The cap (3) has a cylindrical member to be inserted into the unsealing blade (4). One of the opposed surface portions of the cylindrical member and the blade (4) has a guide surface extending from the upper edge to the lower edge thereof so as to incline upward in the direction of opening of the cap (3), and the other thereof is provided with a member slidably contacting the inclined guide surface, whereby the blade (4) can be lowered when the cap (3) is turned in the direction of its opening. Accordingly, when the cap is turned in the direction of its opening (upward), the cylindrical member is turned and the blade is pressed downward, so that the film is broken by the blade to open the pouring port. Consequently, the liquid becomes ready to be poured when the cap is removed.</p> |
