| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely fix a base cup in a delamination bottle having the base cup on the bottom of a container body; and to easily open an air inlet between an outer layer and an inner layer. <P>SOLUTION: The container body is formed of a laminate structure including the outer layer and the inner layer, and includes a bottom seal to serve as a cut-off portion of a parison on the lower surface of a bottom plate wall and an external thread on a side face of the bottom. The base cup to be assembled with the container body includes an internal thread to be screwed with the external thread, and a narrow pressurized part with a smaller width than the diameter of the bottom plate wall. A spouting container is constituted of the container body and the base cup. Thus when the base cup is screwed with the external thread of the container body, the narrow pressurized part applies pressing force to the bottom plate wall from sideward and forms a slit for introducing the open air between the outer layer and the inner layer on the cut-off portion of the bottom seal. Thus the base cup can be surely and rigidly fixed to the container body by screwing, and the slit can be easily opened on the bottom seal as the base cup is screwed. <P>COPYRIGHT: (C)2004,JPO |
