| 摘要 |
<P>PROBLEM TO BE SOLVED: To house a percussion instrument compactly by enabling both drum boards to be closely stacked by folding. <P>SOLUTION: A base end part 25Aa of an arm 25A is connected to a 1st turning mechanism part 21A and the drum board 20A is attached to an free end part 25Ab of the arm 25A at a fixed angle. A base end part of an arm 25G2 is connected to a free end part 25G1b of a connection arm 25G1 formed on the left part of the arm 25A through a 1st turning mechanism part 21G1. The drum board 20G is attached to the free part of the arm 25G2 through the 1st turning mechanism part 21G2 so as to be freely turnable. The drum boards 20A, 20G are configured so that the disposition state may be variable to a spread disposition suitable for performance and to a folding disposition suitable for holding, respectively, and are brought into a stacked state at a regular position in the folding disposition and closer to each other than in the spread disposition. <P>COPYRIGHT: (C)2008,JPO&INPIT |
