Automatic cleaner

Abstract

An automatic cleaner, which includes a casing including a suction port through which,a foreign substance is suctioned, a moving device that moves the casing, and a side brush assembly movably installed on the casing. The side brush assembly includes a brush rotating to move a foreign substance located outside the footprint of the casing, to the suction port. A rotation shaft of the brush is moved according to a movement of the side brush assembly.

1 - 20 . (canceled) 
     
     
         21 . An automatic cleaner comprising:
 a casing comprising a suction port in a bottom portion of the casing through which a foreign substance is suctioned;   a moving device that moves the casing; and   a side brush assembly movably installed on the casing,   wherein the side brush assembly comprises a brush rotating to move a foreign substance located outside the footprint of the casing, to the suction port, and a rotation shaft of the brush is moved according to a movement of the side brush assembly.   
     
     
         22 . The automatic cleaner of  claim 21 , wherein the side brush assembly further comprises a movable member movably installed on the casing, and
 the brush is rotatably installed on the movable member.   
     
     
         23 . The automatic cleaner of  claim 22 , wherein when the movable member is moved, an overlap area of the movable member and the casing is varied. 
     
     
         24 . The automatic cleaner of  claim 22 , wherein when the automatic cleaner is not in a cleaning operation, the movable member is located in a first position, and
 when the automatic cleaner is in a cleaning operation, the movable member is moved to a second position.   
     
     
         25 . The automatic cleaner of  claim 24 , wherein while the automatic cleaner is in a cleaning operation, the movable member stays in the second position. 
     
     
         26 . The automatic cleaner of  claim 24 , wherein while the automatic cleaner is in a cleaning operation, the movable member is moved between the first and second positions. 
     
     
         27 . The automatic cleaner of  claim 22 , wherein when the automatic cleaner is in a cleaning operation, the movable member is moved. 
     
     
         28 . The automatic cleaner of  claim 22 , wherein the brush is rotated when the automatic cleaner is in a cleaning operation, and
 the movable member is moved when the casing approaches a wall with a predetermined distance.   
     
     
         29 . The automatic cleaner of  claim 22 , further comprising:
 a first driving member that generates driving force to move the movable member; and   a second driving member that generates driving force to rotate the brush.   
     
     
         30 . The automatic cleaner of  claim 29 , wherein the first driving member and the second driving member are disposed on the casing. 
     
     
         31 . The automatic cleaner of  claim 29 , wherein the first driving member is disposed on the casing, and
 the second driving member is disposed on the movable member and is moved together with the movable member.   
     
     
         32 . The automatic cleaner of  claim 22 , wherein the movable member is installed on the casing and is allowed to linearly move. 
     
     
         33 . The automatic cleaner of  claim 22 , wherein the movable member is installed on the casing and is allowed to rotate about a rotation shaft. 
     
     
         34 . The automatic cleaner of  claim 22 , wherein the side brush assembly is provided in plurality, and
 when one of the side brush assemblies is adjacent to a wall, the movable member of the side brush assembly adjacent to the wall is moved.   
     
     
         35 . An automatic cleaner comprising:
 a casing comprising a suction port through which a foreign substance is suctioned;   a moving device that moves the casing;   a main brush contacting a foreign substance through the suction port and removing the foreign substance;   a main driving member that provides driving force to rotate the main brush;   a movable member movably installed on the casing;   a first driving member that provides driving force to move the movable member; and   a brush rotatably installed on the movable member to direct a foreign substance to the suction port.   
     
     
         36 . The automatic cleaner of  claim 35 , wherein when the automatic cleaner is not in a cleaning operation, the movable member is located in a first position, and
 when the automatic cleaner is in a cleaning operation, the movable member is moved to a second position.   
     
     
         37 . The automatic cleaner of  claim 36 , further comprising a second driving member to drive the brush,
 wherein the second driving member is operated when the automatic cleaner is in a cleaning operation.   
     
     
         38 . The automatic cleaner of  claim 36 , further comprising:
 a first sensing part to sense the first position of the movable member; and   a second sensing part to sense the second position of the movable member.   
     
     
         39 . The automatic cleaner of  claim 35 , wherein the first driving member is operated when the casing approaches a wall. 
     
     
         40 . The automatic cleaner of  claim 35 , wherein when the first driving member is operated, an overlap area of the movable member and the casing is varied.