| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a motor-driven toothbrush capable of dissolving an unpleasant feeling due to vibrations, improving operability inside the mouth, and keeping a bristle implanted part sanitary. <P>SOLUTION: The motor-driven toothbrush 1 comprises: a holding part 2 with a built-in driving mechanism 6; the bristle implanted part 3 where a brush 5 is implanted; and a neck part 4 disposed between the holding part 2 and the bristle implanted part 3, in which the drive shaft 25 of the driving mechanism 6 is inserted to the inside. The bristle implanted part 3 comprises: an annular fixed part 10 fixed to the neck part 4 and provided with a penetrated void 10a; and a movable part 11 disposed inside the void 10a and moved by the transmission of power from the driving mechanism 6 through the drive shaft 25. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
