| 摘要 |
PROBLEM TO BE SOLVED: To provide a music box device having an economic power source by enabling continuous performance for a long period of time. SOLUTION: The music box device comprises a rotating drum embedding a plurality of pins in response to a program; a vibration valve for generating tone color corresponding to the program by coming into contact with the pins to vibrate vibration edges; and a windmill having a plurality of blades. The windmill and the rotating drum are connected through a power transmission means, and the rotating drum is rotated by power obtained to rotate the windmill. COPYRIGHT: (C)2005,JPO&NCIPI
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