Patent ID: 7363682
Filing Date: 2008-04-29
Classification: A47L

Abstract:
1. A suction head for a vacuum cleaner, comprising: a casing having a suction port for sucking alien substances from a floor; an agitator roll rotatably installed inside the suction port, a plurality of brushes being arranged on the agitator roll in the length direction; an agitator roll driving unit including a rotating driving motor having a drive shaft with a rotating lever attached thereto for driving the agitator roll to perform reciprocating rotation of the agitator roll in a predetermined angle range and a driving force transmitting unit for transmitting the driving force of the driving motor to the agitator roll; and a resonance unit for resonating the reciprocating rotation of the agitator driving unit, wherein the resonance unit comprises a spiral spring of which an end is fixed to the drive shaft of the driving motor, and another end is fixed to the driving motor or the casing.