Patent ID: 7856694

Claim:
A nozzle assembly of a vacuum cleaner, comprising: a casing comprising an upper casing and a lower casing, and a suction port formed in a lower portion of the lower casing; a drum brush comprising a plurality of drum bristles planted along an outer circumference thereof, the drum brush rotatably disposed in an interior space of the casing so the drum bristles hit a surface being cleaned; a fan disposed in the interior space of the casing to be rotated by air being drawn in through the suction port, the fan to provide the drum brush with a rotational force; and a blocking plate being formed adjacently to a front of the fan to screen most of the fan except for a portion of the fan, wherein the fan comprises, a circular fan body, a shaft member extending from the center of the circular fan body, and a plurality of blades formed on the circular fan body, and wherein each of the blades have an inside edge that is at a distance from the shaft member so that the drawn-in air passes through a space defined between the inside edge of each of the blades and the shaft member, wherein the blocking plate comprises: a straight portion parallel to a tangent to an outer circumference of the circular fan body; a curved portion extending from a bottom of the straight portion and curved toward the portion of the fan; and a cutaway portion formed in the curved portion, wherein the curved portion has a lower end that is spaced apart from an inner surface of the lower casing.