| 摘要 |
PROBLEM TO BE SOLVED: To allow, in a synthetic resin container lid (2 or 302) including a pull-ring (28, 128, 228 or 328), a finger to easily and reliably hook on the pull- ring and to pass therethrough if needed, even if the pull-ring has a relatively small diameter due to a small diameter of the container lid. SOLUTION: At least a portion of the pull-ring is formed in a wavy form where projections and recesses are repeated. |
