| 摘要 |
<p>PURPOSE: To prevent the peeling of the paper material and inner bag of a container or the ply separation of the paper material by providing a flange to the peripheral edge of the lower end of a pouring cylinder having a screw part and providing a pair of opposed sides approaching two opposed parallel sides of the attaching surface of a paper container main body in parallel thereto to the flange. CONSTITUTION: A circular cap fixing plate 7b and a circular pedestal 8 are formed to the lower part of a pouring cylinder 7 having a screw part 7a provided to the pouring port 6 thereof and a flange 9 is provided to the peripheral edge of the lower end of the cylinder 7. The flange is formed into a square shape same to the shape of an attaching surface and having a size almost same to that of the attaching surface. By this constitution, the pouring port receives load strongly when a cap is screwed or unscrewed and, even when the pouring cylinder is ready to be revolved along with the cap, a pair of the opposed sides of the flange of the pouring port soon come into contact with two parallel opposed sides of the attaching surface of a container to prevent further revolution and, therefore, the peeling of the paper material and inner bag of the container or the ply separation of the paper material can be prevented.</p> |
