Suction brush for a vacuum cleaner

Abstract

A suction brush rotatably disposed at a cleaner body to move along a cleaning surface for drawing in contaminants from the surface to be cleaned by a suction force generated from a motor driving chamber disposed at a lower portion of the cleaner body having a suction brush body, a brush bar rotatably disposed inside the suction brush body, for brushing the contaminants off from the surface to be cleaned, a driving force transmission belt disposed inside the suction brush body for transmitting a rotation force to the brush bar from a motor disposed in the motor driving chamber, and a belt checking cover pivotably disposed at a lower portion of the suction brush body to check the condition and contamination of the driving force transmission belt.

What is claimed:  
     
         1 . A suction brush for an upright type vacuum cleaner, disposed at a cleaner body to move along a surface to be cleaned, for drawing in contaminants from the cleaning surface by a suction force generated from a motor driving chamber disposed at a lower portion of the cleaner body, the suction brush comprising: 
 a suction brush body;    a brush bar rotatably disposed inside the suction brush body, for brushing the contaminants off from the surface to be cleaned;    a driving force transmission belt disposed inside the suction brush body, for transmitting a rotation force to the brush bar from a motor disposed in the motor driving chamber; and    a belt checking cover disposed at a lower portion of the suction brush body to check the condition and contamination of the driving force transmission belt.    
     
     
         2 . The suction brush of  claim 1 , wherein the belt checking cover is pivotably hinged on a brush bar cover disposed at a lower portion of the suction brush body for covering the brush bar and having an opening port formed therein through which the brush bar may be exposed.  
     
     
         3 . The suction brush of  claim 1 , wherein the suction brush is rotatably disposed at the cleaner body.  
     
     
         4 . The suction brush of  claim 1 , wherein the entire length of the driving force transmission belt is accessible when the belt checking cover is removed.  
     
     
         5 . The suction brush of  claim 1 , wherein the drive transmission belt is disposed within a belt mounting section of the cleaner body, separate from a brush mounting section, the belt mounting section being covered by the belt checking cover.