| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vacuum valve-actuated airtight container lid which has a simple packing mounting structure, ensures a strong airtight force, and allows the attachment/detachment thereof to/from a container body by one-touch operation. <P>SOLUTION: The vacuum valve-actuated airtight container lid is formed of: a vacuum valve (4) which is set the interior of the container body (2) in continuity with the exterior of the same, or actuated so as to interrupt the continuity and maintain a vacuum pressure; and a packing (10) which makes intimate contact with an inner wall surface of the container body (2) to hermetically seal the interior of the container body (2). In order to mount the packing (10), the container lid (1) is formed by injection-molding a body section (3) in a manner of defining an annular groove (9) therein so as to be opened horizontally outward, and double-injecting a downward-bent peripheral edge (12) bent so as to enclose the peripheral edge (2a) of the container body (2), at the outer peripheral edge (11) of the body section (3), and jointing them. <P>COPYRIGHT: (C)2007,JPO&INPIT |
