| 摘要 |
PURPOSE:To correctly effect the catch of a positioning claw and thus considerably decrease the positioning defeats by providing a positioning recession or protrusion on a part of the outer periphery of a flange part. CONSTITUTION:A cotter 25 is fixed outwardly on the inclined surface of a top part of a paper vessel 1 which contains liquid contents such as milk, juice and the like, and equipped with a pouring material 5 comprising a cylindrical part 8 having a partially notched flange part 9 and side wall part, and a cap material 6 being fitted with the pouring material 5, wherein on a part of the outer periphery of the flange part 9, a positioning recession 22 and a protrusion are provided. |
