| 摘要 |
PROBLEM TO BE SOLVED: To provide a spout stopper, which easily drains off water entering between a spout and a cap, and can secure enough strength of the spout even in the case of reducing the amount of resin used for forming the spout.SOLUTION: A spout stopper 1 includes: a spout 2 having a cylindrical side wall 4, one end of which is opened, a male screw 5 provided on the outer surface of the side wall 4, and a flange 6 provided on the other end side of the side wall 4; and a cap 3 engaged with the spout 2. The male screw 5 is provided with a skip screw part 12a where the male screw 5 is intermittently cut out in a constant cycle so that the cutout parts are arranged side by side in the axial direction of the spout 3. In the side wall 4, the thickness of a part corresponding to the skip screw part 12a is larger than the thickness of a part not having any skip screw part. |
