| 摘要 |
PURPOSE:To make long-term operation possible by providing a tact oscillation part which converts the rotating motion by a step motor part to linear motion or forward and backward operation approximate to the linear motion and oscillates a tact bar. CONSTITUTION:The step motor 4 is constituted to rotate, for example, 18 deg. at one pulse and therefore said motor rotates one turn in any of the direction A hen 20 pulses are inputted therto. The rotation thereof is transmitted via a motor shaft and a belt 14 to a tact bar driving part 18 by which the driving part is moved to either of the direction B. The movement thereof is transmitted to the tact bar 15. Since the bar 15 is freely rotatably fixed by a tact bar shaft 20 in the lower part, the bar 15 is oscillated to either of the direction C when the shaft 18 moves in the direction B. Sound is produced from a speaker part during the backward movement of the bar 15. |
