| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently reduce torque required for breaking a circular thin line by improving a container lid comprising a body (2) attached to a container and an outer lid (4) covering the body and having a form in which the circular thin line (18) defining a removal area (20) is formed at a closing wall (6) of the body closing a mouth part of the container.SOLUTION: A plurality of breakable arc thin lines (26) extending in an arc shape at an inner side in a radial direction of a circular thin line are formed at intervals in a circumferential direction at a closing wall of a body, in addition to the circular thin line. Connection thin lines (28) connecting upstream ends of the arc thin lines to the circular thin line when viewed in an opening rotation direction of an outer lid with respect to the body are formed. The breakage of the circular thin line is configured to start at a plurality of regions to which the connection thin lines are connected and gradually proceed in the opening rotation direction. |
