| 摘要 |
A plastic cap comprising a cap proper composed of a top panel and a skirt side wall, and a circumferential band provided in the lower end of the skirt side wall, wherein a screw for screwably engaging with the outer circumference of the neck of the container is formed in the inner surface of the skirt side wall, from the lower end of the skirt side wall, a circumferential band extends downwardly via a breakable line a plurality of bridge portions, in the inner surface of the lower portion of the circumferential band, a protrusion engageable with an engageable protrusion formed in the outer surface of the neck of the container is formed, and at least one flexible fin extending diametrically inwardly is provided in the inner surface of the circumferential band. When the container is tilted, the flexible fin is hooked on the jaw portion of the neck of the container, and is not removed from the neck of the container. Accordingly, in pouring out the liquid within the container, a trouble of the circumferential band falling into a vessel such as a cup together with the liquid in the container can be effectively prevented.
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