| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plug with an unsealing function capable of easily and completely breaking a sealing film even if a barrier layer of the sealing film for a spout hole with perforations or a cut of a paper-made container for a liquid is a vapor deposition film such as silicon oxide. <P>SOLUTION: The plug is structured by connecting a lid with a rear peripheral wall (110) of a plug body (100) via a thin hinge line (101) so that it can be opened/closed, and providing an opening (130) in the front of a base plate (120) of the plug body. The plug has an unsealing projection (141) above the opening, hanging from the front toward outer peripheral lower surfaces on both right and left sides, a rear side end of an unsealing flap (140) having a slide contact surface on the upper surface in the rear connected with the base plate at the rear side end of the opening via a thin hinge line, and a drawing slit (121) with a lateral width of the unsealing flap. The plug is also equipped with a pair of opposite supporting poles (151) standing on a base plate of the drawing slit and a slide contact circular rod is straddled at the upper end positions between the poles. A separate control member (300) with a slide contact mounting part (330) hanging on a lower surface of a front side rim of a control part (320) is rotatably mounted on the circular rod (152). <P>COPYRIGHT: (C)2004,JPO&NCIPI |
