| 摘要 |
PROBLEM TO BE SOLVED: To provide a plug with a pull-ring in which tearing of an annular thin-wall fragile line along a post raising part is easy when the pull-ring is pulled, by decreasing unplugging force for easy opening.SOLUTION: In a plug 1 with a pull-ring, a removal plate 7 surrounded with an annular thin-wall fragile line 6 is formed in a closing plate 5 which seals a pouring tube 3, and a post 9 containing a pull-ring 8 is raised at a position near the annular thin-wall fragile line 6 of the removal plate 7. A thin-wall plate part 15 which is easy to deflect and deform is formed at the removal plate 7 and a plate-like thick-wall plate part 16 which is harder to deflect and deform than the thin-wall plate part 15 is formed in a region other than the thin-wall plate part. Two plate parts 15, 16 whose wall thickness being different from each other are provided side by side through a step part 18, in the radial direction of the removal plate running through the center of the removal plate 7 from a post raising part 14. |
