| 摘要 |
PURPOSE: A blackboard eraser cleaner is provided to efficiently clean a blackboard eraser by repeatedly applying weak impacts to the blackboard eraser. CONSTITUTION: A blackboard eraser cleaner includes a receiving space for a blackboard eraser. A motor and an impacting plate(1) are mounted at the lower part of the receiving space. Suction holes(2) are formed at several sides of the receiving space. Impacts are applied to the blackboard eraser by the motor and the impacting plate, and chalk powder is removed from the blackboard eraser. The removed chalk powder is sucked through the suction holes. The blackboard eraser includes a cover(3) and a switch(4).
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