| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap with an inner stopper, which can be easily opened and is improved in seal performance when closing the cap after being opened.SOLUTION: The cap with an inner stopper comprises an inner stopper 20, a cap 30 attached to the inner stopper and a small lid part 50 for sealing an opening part 32a of the cap. The inner stopper 20 has stopper bodies 26 integrally connected through a thin breakable part extending from an inner peripheral face of a spouting cylinder 25. The cap 30 has a sealing wall 35 that contacts the inner peripheral face of the spouting cylinder 25 to seal the spouting cylinder 25 with the cap attached to the inner stopper 20. The small lid part 50 has a cylindrical side wall 51 and a protruding part 53 hanging down from an inner face of a top wall 52. On the outer peripheral face of a cylindrical wall 26a is provided a first knurled part, and on the inner peripheral face of the cylindrical side wall 51 is provided a second knurled part to be engaged with the first roulette part. Between a first engagement protruding part, formed on the inner peripheral face of the cylindrical wall 26a, and a second engagement protruding part, which is formed on the outer peripheral face of the protruding part and engaged with the first engagement protruding part, is formed a space allowing the stopper bodies 26 to move along a center axis C of the spouting cylinder 25. |
