| 摘要 |
PROBLEM TO BE SOLVED: To perform a more positive removing operation when a plastic cover is removed from a metallic container. SOLUTION: A bulged-out part 21 is formed at an outer cylinder 2 of a plastic cover 1. An inner cylinder 3 is formed with a protrusion 31 coupled to a lower indentation section of a curled part 82 of a metallic container 8. The protrusion 31 has a cut region 36 and a radius of curvature 33R in a vertical direction of an upper side raised portion 33 of a circumferential end 32 is larger than that (35R) of a continuous part 34 subsequent to the end section. When a pressing display section 22 is pushed in a direction of arrow, the inner cylinder 3 connected to the outer cylinder 2 by ribs 38 and a protrusion 31 or the like are deformed into an elliptical shape. In addition, the bulged-out part 21 is abutted against a shoulder slant surface 81 of the metallic container 8 without any delay in time and the protrusion 31 may accept an upward- directed force. When they are deformed into an elliptical shape, a surface shape of a circumferential end 32 which is hardly widened toward an outside part of the curled part 82 is formed into such a state as one in which it is easily removed from the curled part as described above. |
