| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the manufacturing cost of the conventional frame for signboard is high, its strength is insufficient regardless of its long construction work, and the conventional frame is weak against rust. SOLUTION: A frame body in which a display panel is attachable/detachable is configured by connecting four corner members constituted of square pipes whose both internal/external faces are plated with intermediate members constituted of similar square pipes, and the corner members and the intermediate members are fixed with fastening tools. On one edge part of either the corner member or the intermediate member, a connecting part fit into the inside of the other edge part so as to be made fixable to the member with the fastening tool is projectingly provided. The adjacent corner members are connected via the two or more intermediate members to each other, and the intermediate members are fixed to each other with the fastening tools. COPYRIGHT: (C)2004,JPO&NCIPI
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