| 摘要 |
PROBLEM TO BE SOLVED: To obtain sufficiently high sealabilities for storing a content rich in liquid components by welding a lid body on a flange part of an assembled container with a flange in a blank for the container forming the container with the flange. SOLUTION: Corner part ridge folding lines 4 and 4 being provided at a corner part and respectively formed at connecting parts between first and second folding pieces 5a and 5b being folded outward and joined and a first and second side face plates 3a and 3b, are respectively formed over the inner edge parts of the side edges of the first and second side face plates 3a and 3b to the intermediate parts and are not formed on the outer edge parts. The inside corner part of the container with the flange is composed of a joined part of bending parts each other along the corner part ridge folding lines 4 and 4. The part where the corner part ridge folding lines 4 and 4 are not formed corresponds to the upper part of the container with the flange, and at the initial stage when the first and second folding pieces 5a and 5b are folded and joined, they are pushed together under a condition that they are not completely bent to easily obtain a face adhesion which hardly generates defect of joining. COPYRIGHT: (C)2009,JPO&INPIT
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