| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound structure having excellent portability and housing property. <P>SOLUTION: A sound structure 10 is surrounded by four side plates 12, 14, 13 and 15 and two bottom face plates 17 and 16, and forms a hollow square pole extending in one direction. The sound structure 10 can be folded so as to form a flat sheet shape as a whole by bringing the side plates 12 and 13 close to each other while folding the side plates 14 and 15 at respective folds xa1 and xa2 and folding the bottom face plates 16 and 17 at respective folds ya1 and ya2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
