Patent ID: 7331076

Claim:
An electric motor driven tooth brush equipped with latitude oscillating scrubbing brush head is comprised of; a rechargeable battery accommodated in a cylindrical chamber of a housing of a handle portion of a toothbrush; and a motor gear attached to a rotating shaft of an electric motor and rotatably supported on a first end plate and a second end plate of the housing via a bearing equipped ring connector; and two scrubbing drive gears each having straight blades and sloped blades in one body and is coupled to the motor gear and rotatably supported on the first end plate and second end plate of the housing via bearing equipped ring connector; and another scrubbing gear with only sloped blades and is perpendicularly coupled to the two scrubbing drive gears; and a scrubbing shaft having an annular portion, which has two arc shape protrusions developed on an upper side thereof located opposite each other at a most farthest distance, at one end to allow the perpendicularly coupled scrubbing gear pass through thereof, and which is positioned above the motor gear by rotatably anchored at one end thereof to the first end plate and the other end thereof is connected to a replaceable tooth brush head via a holding shaft; and a replaceable toothbrush head that is engaged to the scrubbing shaft with the aid of pressing protrusions developed inwardly at the other end of the scrubbing shaft; and a circular plate that is attached to the perpendicularly coupled scrubbing gear with a predetermined angle by allowing the scrubbing gear to penetrate the center of the circular plate and both ends thereof are rotatably anchored to an upper and bottom inner surface of a space formed between the first and second end plates; and two springs located just below the protrusions on the annular portion to push up the annular portion.