| 摘要 |
PURPOSE: A vibration eraser is provided to cleanly and rapidly remove characters or drawings on a board or a blackboard with small power by using a vibrato on which a vibrating device or an ultrasonic oscillator is attached. CONSTITUTION: A vibration eraser comprises the following: a eraser main body(20); a vibration member consisting of one member selected between an ultrasonic oscillator or a vibrator(120) equipped on one side of the eraser main body; a battery part(180) supplying power to the vibration member; and an operation switch(160) and a PCB part operating the battery part. The ultrasonic oscillator or the vibrator is operated by a motor.
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