ROTOR WITH MASS ECCENTRICITY AND ROTATION-TYPE VIBRATION MOTOR TO WHICH THE SAME IS FITTED

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PROBLEM TO BE SOLVED : To provide a rotor with mass eccentricity which is fitted to a rotation axis of a rotation-type motor, generates vibration, is formed of a base metal (common metal) such as iron and copper and can generate necessary vibration and to provide the rotation-type vibration motor to which the rotor is fitted. SOLUTION : The rotor 11 with mass eccentricity which is fitted to the rotation axis 83 of the rotation-type motor 82 and generates vibration is formed of a top part 12 that is freely rotatably fixed to the rotation axis 83 and an eccentricity weight part 52 extended in an axial direction of the rotation axis 83 from a top part 12-side. Thus, the rotation-type vibration motor 81 which can efficiently generate strong vibration of a practical level without using a rare metal can be provided. COPYRIGHT : (C)2009, JPO&INPIT