| 摘要 |
PROBLEM TO BE SOLVED: To easily detach a cap from a container after the consumption of content by providing an open part having a ridge for fitting a cap not formed thereto or formed thereto extremely small to the outer periphery of a mouth part. SOLUTION: A ridge 2 is formed to the upper end of the outer periphery of the mouth part of a container 1 and a part thereof is formed into an open part 3 where the ridge 2 is omitted. The ridge 2 is fitted to the ridge 6 formed to the inner periphery of the cylindrical wall of a cap 4 to strongly attach the cap 4 to the container 1. When the cap 4 is detached from the container 1, an outer lid 11 is pulled in the direction shown by an arrow, that is, in an upward direction. Since the ridge 2 of the container 1 at the part of a hinge 2 becomes the open part 3 and does not become the fitting state with the ridge 6 of the cap 4, the cap 4 begins to easily detach from the container 1 from this part. When the outer lid 11 is further pulled upwardly, the cap 4 is perfectly detached from the container 1. |
