Solve the problems, such as: to provide a kind of electric toothbrush, wherein direct current generator and vibration axis are contained in bar component.SOLUTION: there is a stem member can connect/dismantle to/from which brush device for the electric toothbrush. Rod unit is to be made of synthetic resin, and have a hollow portion, containing direct current generator and vibration axis and direct current generator. It when the hollow parts of one end are opened, is therefrom inserted into direct current generator with vibrating shaft, the other end and hollow component are closed. The other end in the free end of vibrating shaft rotatably holds in hollow portion, which has a tapered wall, conic inner wall is crimped into shoulder direct current generator, so that it is secured so that dc motor is maintained at hollow portion.In selected attached drawing: Fig. 2 CCOPYRIGHT:(C) 2016, JPO& INPIT
