Patent ID: 7222382

Claim:
An electro-motion toothbrush comprising: a case containing a driving unit, the driving unit including; a power source, first and second rotation gears which engage each other and are rotated by power from the power source, and first and second rotation support shafts, connected to and activated through first ends fixed to the first and second rotation gears, respectively, and having second ends; first and second toothbrush support rods which are flexible and rotated by the driving unit in directions opposite to each other, wherein the second ends of the first and second rotation support shafts are connected to the first and second toothbrush support rods, respectively; first and second toothbrush heads connected to ends of the first and second toothbrush support rods, respectively; first and second toothbrush bristles implanted along a lengthwise direction of the first and second toothbrush heads, which interweave with each other, and which do not cross each other during rotation of the first and second toothbrush support rods; and an interval adjustment unit installed at the case and adjusting spacing between the first and second toothbrush support rods.