Patent ID: 8671513
Filing Date: 2014-03-18
Classification: A47L

Abstract:
1. A nozzle assembly of a vacuum cleaner, comprising: a nozzle assembly body; a drum brush unit disposed in the nozzle assembly body, the drum brush unit having a drum brush disposed to move dirt or dust adhered to a surface to be cleaned while coming in rotational contact therewith; and a subsidiary brush unit disposed in front of the drum brush unit, and the subsidiary brush unit having a subsidiary brush member to preliminarily move the dust or dirt adhered to the surface to be cleaned before the drum brush moves dirt or dust adhered to the surface, wherein the subsidiary brush member includes a subsidiary brush casing and a subsidiary brush attached to the subsidiary brush casing, and wherein the nozzle assembly further comprises: a pair of links for movably connecting the subsidiary brush member to the nozzle assembly body such that the subsidiary brush member is manually movable between an unfolded state, where the subsidiary brush is in contact with the surface to be cleaned, and a folded state, where the subsidiary brush is spaced from the surfaced to be cleaned, the subsidiary brush unit further comprises: at least one bracket member having one side connected to the nozzle assembly body, wherein the pair of links connect the at least one bracket member and the subsidiary brush member, and at least one guide member to connect the subsidiary brush member and the at least one bracket member, wherein the at least one bracket member has at least one guide groove formed therein, and one end of the at least one guide member is inserted into and moved in the at least one guide groove to change a position of the subsidiary brush member.