| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bottle can capable of highly precisely molding a skirt on a mouthpiece, and a manufacturing method of the same. <P>SOLUTION: The mouth piece 22 includes an external thread 6, and the skirt 7 connected with a lower end in a can axial direction of the external thread 6 and equipped with a first peripheral wall gradually widened as coming downward and a second peripheral wall connected with the lower end of the first peripheral wall via a convex curve protruding radially outward and gradually narrowing as coming downward. A circumferentially extending recess 7d or circumferentially intermittently spotted recesses are formed on a region of the first peripheral wall reaching at least approximately 180°in the circumferential direction reversely to the direction X of the thread 6 extending from a tail 6a at the lower end of the can axial direction of the external thread 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
