| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sign tower hard to be damaged when multiple sign towers are stackingly stored and capable of withstanding the use for a long period. <P>SOLUTION: This sign tower A comprises a polygonal crest panel 1 positioned at the top end in the height direction and surrounded by sides in plan view; and side surface panels 2a, 2b having the upper ends joined to the sides of the crest panel 1 and adjacent to each other through a corner part 3. The sign tower is formed in a generally polygonal pyramid shape with a hollow part therein. A swelled part 3a is formed on or near the outer surfaces of at least two corner parts 3 in the cross section of at least a part of the sign tower in the height direction. <P>COPYRIGHT: (C)2008,JPO&INPIT |
