| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap which facilitates adjustment of flow rate of a content liquid using an inner plug, prevents the inner plug from being idly rotated due to opening/closing operation of an upper lid, and ensures sufficient sealing property.SOLUTION: This invention includes: an upper lid B; and an inner plug C which has a fastening section 26 including an engagement protruding section 25 which engages with an annular protruding section 33 formed on the outer peripheral surface 31a on the distal end 31b of the container mouth section, and a pressing section 24 which comes into contact with a slope 34 formed on the inner peripheral surface 31c of the distal end 31b of the container mouth section; and a liquid pouring section 23 which is installed on the upper section of the fastening section 26. The upper lid B which houses the inner plug C is fastened to the container mouth section 31 by screwing for the cap. The inner surfaces 24a of the pressing section 24 and the liquid pouring section 23 are formed so as not to protrude to the inside of the container beyond the inner peripheral surface 31c of the container mouth section 31. |
