SQUARE-SHAPED DRAWN CONTAINER AND METHOD OF MOLDING THE SAME

摘要

[Problem] A rectangular drawn container and a method for forming the same are provided which can prevent warpage of a bottom portion of a container in a simple way. [Solution] In a rectangular drawn container that is provided with a polygonal bottom panel portion 2 and a body portion 3 of a polygonal tubular shape rising from peripheral edges of the bottom panel portion 2, a convex bead 5 is formed on the bottom panel portion 2 at a location in the vicinity of at least one bottom side rounded portion 4 among bottom side rounded portions of the body portion 3, at an inner side of the container so as to extend in parallel to the at least one bottom side rounded portion 4 at a predetermined distance therefrom. The bottom panel portion 2 takes a rectangular shape, and the bead 5 is arranged along a pair of bottom side rounded portions 4 at long sides of the bottom panel portion.