Wet-cloth brush for vacuum cleaner and a vacuum cleaner having the same

Abstract

A wet-cloth brush for a vacuum cleaner, which generates minor vibration and enables a user to check the operation of a wet-cloth board, comprises a brush body, a fan mounted to the brush body to be rotated by drawn-in air, an eccentric cam mounted to the brush body and operated in association with a power transmitter that transmits a rotational power of the fan, and at least two wet-cloth boards separably mounted to the brush body to move along a locus of the eccentric cam.

1 . A wet-cloth brush for a vacuum cleaner, comprising: 
 a brush body;    a fan mounted to the brush body to be rotated by drawn-in air;    a plurality of eccentric cams mounted to the brush body and operated in association with a power transmitter that transmits a rotational power of the fan; and    at least two wet-cloth boards mounted to the brush body to move along a locus of the eccentric cam.    
   
   
       2 . The wet-cloth brush of  claim 1 , wherein the power transmitter comprises: 
 a plurality of worms mounted to a rotation shaft protruded from opposite sides of the fan; and    a plurality of worm wheels meshing with the worms and having the eccentric cam at a lower end thereof, respectively.    
   
   
       3 . The wet-cloth brush of  claim 2 , wherein the worm wheels formed at both sides of the fan are rotated in the opposite directions to each other.  
   
   
       4 . The wet-cloth brush of  claim 1 , wherein the wet-cloth boards comprises: 
 a cam groove formed as a long groove for insertion of the eccentric cam; and    a guide projection formed at one side of the cam groove and inserted in a guide groove formed as a long groove on the brush body.    
   
   
       5 . The wet-cloth brush of  claim 4 , wherein the two wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.  
   
   
       6 . The wet-cloth brush of  claim 5 , wherein the two wet-cloth boards respectively have a sloping edge on the sides facing each other.  
   
   
       7 . The wet-cloth brush of  claim 1 , wherein the wet-cloth boards are mounted to a lower part of the brush body to partly protrude from the brush body.  
   
   
       8 . A vacuum cleaner performing wet-cleaning by drawing in dust-laden air through a wet-cloth brush, wherein the wet-cloth brush comprises: 
 a brush body;    a fan mounted to the brush body to be rotated by the drawn-in air;    first and second worms respectively mounted to rotation shafts formed on both sides of the fan;    first and second worm wheels mounted in the brush body to mesh with the first and the second worms;    first and second eccentric cams respectively mounted at a lower part of the first and the second worm wheels and deviated from rotational centers of the worm wheels; and    first and second wet-cloth boards including a cam groove formed as a long groove for insertion of anyone of the first and the second eccentric cams, and a guide projection formed at one side of the cam groove and inserted in a guide groove formed as a long groove in the brush body.    
   
   
       9 . The vacuum cleaner of  claim 8 , wherein the first and the second wet-cloth boards repeatedly and linearly move so as to gather at a center part of the brush body and separate from each other.  
   
   
       10 . The vacuum cleaner of  claim 8 , wherein the first and the second wet-cloth boards respectively have a sloping edge on the sides facing each other.  
   
   
       11 . The vacuum cleaner of  claim 8 , wherein the first and the second wet-cloth boards are mounted to a lower part of the brush body to partly protrude from the brush body.