| 摘要 |
<p>PURPOSE: A both sided brush apparatus for tooth is provided, which can automatically wash the front and back surfaces of the upper and lower teeth at the same time. CONSTITUTION: A both sided brush apparatus for tooth comprises: an upper housing(10-1) in which the top is formed into a mouth-piece shape; a pair of first and second brushes(20,30) which are axis-installed by a flexible axis member to correspond to the top of the housing; a third brush which is axis-installed by a flexible axis member to locate in both side bottom center of first and second brushes; a driving axis member connected to a drive motor; first and second driven gears geared with first and second worm gears; a third driven gear geared with a third worm unit.</p> |
