| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin container lid having an inside plug (4) and a lid body (6) and capable of producing a passage opening (88) in a closing wall (8) of the inside plug without producing so-called trash, and fully surely breaking a breakable thin line (32) as required.SOLUTION: An inside plug comprises: a closing wall; and an attachment wall (10), and a lid body comprises: a cover wall (46); and a fitting wall (48). In the closing wall, a breakable thin line and lock means (40) are provided. In the cover wall, locking means (80) is provided. When the lid body is attached to the inside plug as required, the locking means is locke by the lock means. |
