| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a warning sign board capable of surely urging warning to natural disaster, having stable structure and allowed to be easily constructed. <P>SOLUTION: Since stable structure can be obtained even when a detailed information board 1 has a large scale because the detailed sign board 1 is fixed to a plurality of supports 3A, 3B and a rough sign board 2 is formed on the upper projection part 4 of the detailed information board 1 so that rough information is clearly displayed, warning to natural disaster can be surely urged. Since the rough sign board 2 is installed by projecting one of the supports which are used for fixing the detailed information board 1, the installation of another support is unnecessary and labor required for the construction of the detailed information board 1 and the rough information board 2 can be simplified because the same fixing means 5 are used for the detailed information board 1 and the rough information board 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
