| 摘要 |
PROBLEM TO BE SOLVED: To smoothly carry out caulking work for a caulking lid provided with a tamperproof function. SOLUTION: A circular caulking lid 1 to be caulked to the flange part 41 of a container 4, the flange part having an approximate skirt form capable of being folded back toward outside provided on the upper end part of the container 4 with an aperture in an upward direction, is provided with a caulking part 2 around the outer periphery thereof, forming recessed parts 22 in the circumferential direction C at a predetermined interval exhibiting state of pleats. COPYRIGHT: (C)2003,JPO
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