| 摘要 |
PURPOSE: A board eraser is provided to prevent environmental contamination due to dust, and to collect the dust in a dust container without scattering the dust to the outside through simple manipulation in using of the eraser. CONSTITUTION: A board eraser includes the followings: a dust container(100) storing and collecting dust; a dust container cover(200) opening and closing the top of the dust container; a belt-type eraser sheet erasing words; a roller(400) mounted on either bottom of the dust container; a roller handle(500) rotating the roller, and mounted on the roller; a dust spindle(600) penetrating the center of the roller; a dust separation brush(700) separating the dust attached on the surface of an eraser sheet; an eraser sheet support materials(800); and eraser sheet support material protrusions(900) fixing the eraser sheet support materials.
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