| 摘要 |
PROBLEM TO BE SOLVED: To provide a spout having a structure to which a cap of a hard material can be fitted even when a conventional flexible material is used for the structure. SOLUTION: In the spout for the bag-in-box having a flange for welding an inner bag, rib-like projections are provided on a surface in contact with an object to be stored. The rib-like projections are arranged along two or more directions different from each other to increase the bending rigidity of the flange. COPYRIGHT: (C)2010,JPO&INPIT
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