| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electric toothbrush of simple structure and low cost having high tooth polishing and massaging effect which can be carried to be used. SOLUTION: In the toothbrush body part 1 partly or wholly formed as a grip, as oscillating body 5 with a tip having a bristle bundle 6 extended outward, an oscillation drive source 17 to let the oscillating body 5 reciprocally oscillate around an oscillation center part for letting the bristle bundle 6 reciprocally oscillate roughly in its length direction, and a battery chamber 2 for installation of a battery 3 to supply power to the oscillation drive source 17 are provided.</p> |
