Patent ID: 7610651

Claim:
An automatic cleaning device comprising: a body; a suction head located at a location of the body and having at least one main brush and a brush motor to rotate the main brush; a suction motor located on the inside of the suction head to suction air; an exhaust located behind the suction motor to discharge the air to the outside of the body after dust, suctioned along with the air, is filtered by a filter cartridge; an air injector to inject part of the air, moving to the exhaust, to the outside of the body; and an auxiliary cleaner to direct dust to the suction head, wherein the auxiliary cleaner includes: at least one side brush having a rotating shaft mounted in a location of the body and a plurality of rotating blades attached to the rotating shaft; and a brush rotator to rotate the side brush in accordance with driving of the brush motor, wherein the side brush has a vertically movable lifting mechanism, and wherein the lifting mechanism includes: a rotating disk fitted around the rotating shaft to simultaneously rotate with the rotating shaft, the rotating disk having a plurality of slits; and a plurality of lifters extending upward from upper ends of the rotating blades, respectively, to be inserted through the slits in a vertically slidable manner, a stopper being formed at an upper end of each of the lifters.