| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container lid of synthetic resin capable of eliminating a necessity for replacing various component elements of an existing installed device without excessively reducing its strength and further capable of attaining a substantial reduction of an amount of synthetic resin used for its molding. <P>SOLUTION: A plurality of cavities (42, 142, 242) are arranged to be spaced apart in a circumferential direction at the outer circumferential surfaces of the skirt walls (6, 106, 206), and each of the cavities is extended from the upper end portion of each of the major portions (10, 110, 210) of each of the skirt walls over the circumferential breaking lines (8, 108) up to the damper evident skirts (12, 112) in an axial direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
