Patent ID: 7157824

Claim:
A coin type vibrating motor comprising: a rotor provided with an upper base including at least one wound coil placed on the upper surface thereof, a weight eccentrically disposed on the upper surface thereof, and a commutator placed on the lower surface thereof; a stator including a pair of brushes placed on the upper surface of a lower base, on which a magnet is mounted corresponding to the wound coil, said brushes provided with upper ends contacting the commutator, and a power supply unit for supplying power to the brushes; and a shafting unit including a bearing member formed integrally with the upper base to surround the wound coil and the weight, and a shaft, of which the bearing member is installed on the outer periphery, wherein an oil scattering-preventing portion, which exposes an assembling region between an outer surface of the shaft and an inner surface of the bearing member to the outside therethrough, and has an inner surface extended downwardly to a designated length while being spaced from the outer surface of the shaft, is formed integrally with the lower surface of an insulator exposed to the outside through an opening of the upper base, and wherein the oil scattering-preventing portion is extended to have a designated length such that the rotor does not interfere with the stator when the lower end of oil scattering-preventing portion contacts an upper end of a lower shaft supporter for supporting a lower end of the shaft.