| 摘要 |
PROBLEM TO BE SOLVED: To provide a screwed metal container in which the strength (neck part side rigidity) in a direction perpendicular to a can axis is improved, in the neck part composed of a mouth part and a shoulder part.SOLUTION: A screwed metal container 1 comprises a body part 2, a shoulder part 3, and a mouth part 4. This mouth part 4 comprises: a proximal part 8 connected to the upper end 3a of the shoulder part 3; and a skirt trough part 6a, a skirt part 6, and a screw part 5, which are located above this proximal part. The proximal part 8 also has: a protrusion part projecting radially outside so as to gradually increase in diameter in a downward direction from the skirt trough part 6; and a bead part projecting radially inside so as to smoothly curve in a downward direction from the protrusion part. The bead part project linearly or in a scattering manner in a circumferential direction. The distance (bead height) H in a direction perpendicular to the can axis between the protrusion part and the bead part is 0.1 to 0.6 mm.SELECTED DRAWING: Figure 1 |
