| 摘要 |
PROBLEM TO BE SOLVED: To provide a music box capable of sounding at an accurate timing.SOLUTION: A star wheel 14 which is rotated and driven by a motor picks a vibration valve 18 once after a projection 36 starts rotation from a standby position of stopping at a prescribed position and time before the projection 36 is stopped at the standby position is shorter than length of sound of the sound played at a prescribed tempo according to the music data. Thus, the star wheel can return to the standby position before the time equivalent to the prescribed sound length determined by the music data and the timing for respective star wheels 14 to sound a corresponding vibration valve 18 by picking it can be accurately controlled. |
