| 摘要 |
PROBLEM TO BE SOLVED: To provide a hinge part structure of a styrene foam molding which is sufficiently withstandable even at a folded portion requiring the bending angle of about 90°such as a folded portion to form a box shape. SOLUTION: In the styrene foam molding, plate-like members 2 and 2 are connected to each other via a hinge part 1. The hinge part 1 has a recessed streak groove 3 formed between the plate-like members 2 and 2, and a projecting bar projection 4 is formed on a bottom portion 3a of the recessed streak groove 3. COPYRIGHT: (C)2004,JPO |
