| 摘要 |
When letters written by a pencil are erased, eraser residues occur. The present invention is designed to maximize intermolecular bonding between graphite molecules by changing silicone polymer adhesion elements into various compositions, to maintain balance by adjusting caster oil which is used as glycerine or lubricant to be separated while obtaining an appropriate cohesive force, and to be sensitive to pressure by adding poly dimethyl siloxane to allow elasticity. A solenoid magnet vibrating motor is manufactured on the end of a cylinder using the adhesion elements, a current is consecutively changed, an electric field is induced, and a magnet is vibrated. A vibratory eraser is manufactured using the vibrating motor and the adhesion elements to erase letters without residues during learning or sketching. |
