| 摘要 |
PROBLEM TO BE SOLVED: To prevent dragging feeling when a container lid is opened.SOLUTION: A skirt wall 6 of a synthetic resin container lid 2 is divided into a main portion 20 above a break line 18 and a tamper-evident skirt portion 22 below the break line 18. A fitting surface 43 extending toward the upper part from the base edge of an upper face of engaging means 34 is formed on the inner peripheral surface of the tamper-evident skirt portion 22, and the fitting surface is a friction reduction region where a friction resistance is reduced.SELECTED DRAWING: Figure 1 |
