| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an unpluggable cap preventing a part of a pull ring from being elongated or cut by deformation of the pull ring in unplugging. <P>SOLUTION: The cap attached to a vessel body has a bottom wall, and a removal part of a thin and weakened part becoming a spout is mounted on the bottom wall. A strut pulling up the removal part during opening and the pull ring connected to the strut are mounted in a predetermined position of the upper surface of the removal part. The pull ring has a connection part upward extending in a V-shape from both ends of the strut and a circular finger hold part, and the cross-sectional area of the portion other than the central part of the finger hold part of the pull ring, at least the connection part, is as large as or larger than the cross-sectional area of the central part. <P>COPYRIGHT: (C)2009,JPO&INPIT |
