摘要 |
<p>A closure device composed of a container and a cap of synthetic resin mounted to the neck of the container. The cap of synthetic resin comprises a cap body composed of a top plate portion and a cylindrical portion depending from a peripheral edge of the top plate portion. The cylindrical portion is compartmented by a severable weakened line into a main portion above the weakened line and a lower tamper-evidence ring portion, the main portion being formed at its inner wall surface with a thread, and the tamper-evidence ring portion being provided at its inner wall surface with fallable engaging projections. The container is formed at an outer periphery of the upper end of the neck thereof with a male thread and below the male thread with an annular expanded portion. Provided contiguous to the expanded portion is at least bridge extending means comprising depressing portions, which engage with the engaging projections of the cap to depress the same when the cap of synthetic resin mounted to the container neck is turned in an opening direction, and extended step portions adapted to engage with the engaging projections depressed by the depressing portions to prevent upward movement of the engaging projections.</p> |