| 摘要 |
<p>On a tip of a main body case (2) is formed a cylindrical brush attachment barrel (11) to which a toothbrush head (5) (holding unit (51)) is removably attached. In a space (S1) within the cylindrical brush attachment barrel (11) is disposed a motor (M) to which an eccentric weight (29) generating vibration is attached. Therefore, it is possible for the tip of the toothbrush head (5) to approach the main body case (2) side by the length of the cylindrical brush attachment barrel (11), thereby shortening the total length of an electric toothbrush (1).</p> |
