| 摘要 |
PURPOSE:To realize long period operation by providing a step motor part connected to stepping motor drive generating part and an accelerating part which has tact bar which is moved reciprocatingly by the step motor. CONSTITUTION:A box type accelerator 2 is placed at the lower part of frame body 1, and outside of the accelerator 2 is provided with step motor 4, and in front of the step motor 4 is provided with loud speaker 5, and at the bottom of frame body 1 is provided with power source 6 which is consisted of batteries. Then slide a button 10 of slide control body 7 to the optional scale of tempo and rhythm, and turn on the power source 6. Then the step motor 4 is driven by comb shaped signal controlled by pulse generation circuit of power control part, and the step motor 4 continuously moves the tact bar 15 reciprocally in the range of 72 deg. at every 4 pulses, and a sound is issued at the reverse action of the tact bar. |
