| 摘要 |
PROBLEM TO BE SOLVED: To provide a pouring container which solves the technical issue of constructing a check valve mechanism realizable in a small-sized double container while maintaining a high productivity, thereby being manufactured with a high productivity, causing no infiltration of the external air into the interior of the container, and being excellent in the sanitary aspect. SOLUTION: The pouring container has an outer container body which is deformable by squeeze and has restorable flexibility and whose cylindrical mouth is provided upright at the upper part of the outer container body. The container has an inner container body which is positioned inside the outer container body in the state that its cylindrical mouth is directly fitted and coupled to the mouth of the outer container body to be fixed thereto and which is deformable by a reduction in its volume. The container has a first check valve which is fitted and coupled to the interior of the mouth of the inner container body to be fixed thereto and which opens and closes the opening of the mouth of the inner container body without allowing the external air to infiltrate. The container has a second check valve which is fitted and coupled either to the mouth of the outer container body or to the mouth of the inner container body to be fixed thereto, whose forward end is closely and peripherally contacted with the other mouth, and which opens and closes a fluid passage formed between the outer container body and the inner container body and leading from the upper end of the mouth to the bottom of the container so as to allow air to infiltrate from the external side but not to allow air to be discharged from the interior. COPYRIGHT: (C)2004,JPO
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