| 摘要 |
PURPOSE: A power toothbrush is provided, which cleans tooth up and down by overlapping a linear reciprocating motion and a cleaning motion. CONSTITUTION: A power toothbrush comprises: a body(11) in which a switch is formed outside, a battery is equipped in the inner bottom, a motor and a battery are electrically connected to each other, and a housing is formed in the top end portion; a rotary plate in which a bevel gear pivot axis is formed in the bottom part and a magnet is fixed to and combined with the top end portion and which is equipped to be reversibly pivoted; a spring journal in which a leaf spring is fixed; a driving plate(19) having a fixation pin; and a bristle base(18). |
