Cleaner head and vacuum cleaner having the same

Abstract

A cleaner head is provided. The cleaner head includes: a nozzle; a case disposed close to an inlet of the nozzle; and a brush rotatably disposed in the case, wherein the case includes an air passage groove disposed in an outer side surface of the case and having a passage formed for the air to flow from an edge region of the case toward a surface to-be-cleaned.

1 - 13 . (canceled) 
     
     
         14 . A cleaner head comprising:
 a case including
 a nozzle connection portion, and 
 at least one air passage formed along a front surface of the case and configured to allow air to flow from above the case toward a surface to-be-cleaned; 
   a brush rotatably disposed in an interior of the case and configured to rotate to move material from the surface to-be-cleaned into the case, to thereafter be provided to the nozzle connection portion.   
     
     
         15 . The cleaner head as claimed in  claim 14 , wherein the case further includes:
 a main case including a shielding surface connected to the brush and formed to extend forward than an outer circumferential surface of the brush; and   a side case installed on a side surface of the main case and forming a step with a front surface of the main case,   wherein the at least one air passage is formed by the step between the front surface of the main case and the side case.   
     
     
         16 . The cleaner head as claimed in  claim 15 , wherein the side case includes bristles adjacent to the brush and arranged along an edge of a bottom surface of the side case, and a lower air passage is formed on the bottom surface of the side case along the bristles. 
     
     
         17 . The cleaner head as claimed in  claim 16 , wherein the side case further includes a sub lower air passage formed on one side of the lower air passage along the lower air passage. 
     
     
         18 . The cleaner head as claimed in  claim 15 , wherein the side case further includes a sub air passage formed on one side of the air passage along the at least one air passage. 
     
     
         19 . The cleaner head as claimed in  claim 16 , wherein the case is configured so that, while the cleaner head makes contact with a corner between wall surfaces including a front wall surface and a side wall surface,
 the shielding surface of the main case is brought into contact with the front wall surface and a side surface of the side case is brought into contact with the side wall surface, and   the surface to-be-cleaned on which the cleaner head is disposed and the side wall surface form the lower air passage, together with the bristles arranged along the edge of the bottom surface of the side case, and the bottom surface of the side case.   
     
     
         20 . A vacuum cleaner comprising:
 a cleaner body;   a nozzle connected to the cleaner body; and   a cleaner head connected to the nozzle, and including a case having a brush rotatably disposed in the case,   wherein the case is configured so that, while the cleaner head makes contact with a corner region between wall surfaces, an air passage through which air flows from above the case toward a surface to-be-cleaned is formed on an outer surface of the case.   
     
     
         21 . The vacuum cleaner as claimed in  claim 20 , wherein the air passage is formed by an air passage groove formed on an exterior side surface of the case. 
     
     
         22 . The vacuum cleaner as claimed in  claim 21 , wherein the air passage groove decreases in width toward the surface to-be-cleaned from a first region of the exterior side surface of the case. 
     
     
         23 . The vacuum cleaner as claimed in  claim 20 , wherein the case includes:
 a main case connected to the brush; and   a side case installed on a side surface of the main case and forming a step with a front surface of the main case,   wherein the air passage is formed by the step between the front surface of the main case and the side case.