Rotation brush driving apparatus for vacuum cleaner

Abstract

The present disclosure relates to a rotation brush driving apparatus for a vacuum cleaner capable of selectively transmitting power of a motor to a rotation brush in a simple structure. The rotation brush driving apparatus for a vacuum cleaner according to the present disclosure includes a motor for generating suction force; a rotation brush; a belt for transmitting rotation force of the motor to the rotation brush; and a driving selection unit installed rotatably around the rotation shaft of the motor, for selectively transmitting the rotation force of the motor to the rotation brush by selectively contacting the belt with the rotation shaft of the motor.

1 . A rotation brush driving apparatus for a vacuum cleaner, comprising:
 a motor for generating suction force;   a rotation brush;   a belt for transmitting rotation force of the motor to the rotation brush; and   a driving selection unit installed rotatably around a rotation shaft of the motor, for selectively transmitting the rotation force of the motor to the rotation brush by selectively contacting the belt with the rotation shaft of the motor.   
   
   
       2 . The apparatus of  claim 1 , wherein the driving selection unit comprises:
 a bar shaped selection link installed rotatably around the rotation shaft of the motor; and   an idle pulley installed rotatably at an end of the selection link and supporting the belt,   wherein the rotation shaft of the motor comes to contact with the belt and thus the rotation force of the motor is transmitted to the rotation brush by pulling the selection link.   
   
   
       3 . The apparatus of  claim 2 , wherein the rotation shaft of the motor is separated from the belt and thus the rotation force of the motor is not transmitted to the rotation brush by pushing the selection link in the opposite direction. 
   
   
       4 . The apparatus of  claim 2 , wherein the driving selection unit further comprises a fixing unit for fixing the selection link to a predetermined position. 
   
   
       5 . The apparatus of  claim 4 , wherein the fixing unit comprises
 a fixing shaft having a front end formed to selectively project to a side surface of the selection link;   a guiding holder for guiding the fixing shaft to move perpendicular to the side surface of the selection link and installed on the selection link so that a rear end of the fixing shaft is projected; and   an elastic member installed inside the guiding member and elastically supporting the fixing shaft.   
   
   
       6 . The apparatus of  claim 2 , further comprising a link supporting shaft for supporting the selection link so as to rotate in relation to the rotation shaft of the motor. 
   
   
       7 . The apparatus of  claim 6 , wherein the link supporting shaft is installed on a supporting bracket which is installed at a front of the motor. 
   
   
       8 . A rotation brush driving apparatus for a vacuum cleaner, comprising:
 a rotation brush provided with a pulley;   a belt installed to transmit force by contacting with the pulley of the rotation brush;   a motor for generating suction force having a rotation shaft which projects to a side;   a link supporting shaft formed with a hole through which the rotation shaft of the motor passes;   a supporting bracket for supporting the link supporting shaft and installed at the side of the motor; and   a driving selection unit installed rotatably on the link supporting shaft, for selectively transmitting the rotation force of the motor to the rotation brush by selectively contacting the belt with the rotation shaft of the motor thereby allowing the rotation brush to rotate.   
   
   
       9 . The apparatus of  claim 8 , wherein the driving selection unit comprises
 a bar shaped selection link installed rotatably on the link supporting shaft; and   an idle pulley installed rotatably at an end of the selection link and supporting the belt,   wherein by the pulling the selection link in one direction, the belt is moved by the idle pulley and thus the belt comes to contact with the rotation shaft of the motor, the idle pulley and the pulley of the rotation brush.   
   
   
       10 . The apparatus of  claim 9 , wherein by the idle pulley by pushing the selection link in the opposite direction, the belt is moved and thus the belt comes to contact with the idle pulley and the pulley of the rotation brush while separated from the rotation shaft of the motor. 
   
   
       11 . The apparatus of  claim 9 , wherein the driving selection unit further comprises a fixing unit for fixing the selection link to a predetermined position. 
   
   
       12 . The apparatus of  claim 11 , wherein the fixing unit comprises
 a fixing shaft having a front end formed to selectively project to a side surface of the selection link;   a guiding holder for guiding the fixing shaft to move perpendicular to the side surface of the selection link and installed on the selection link so that a rear end of the fixing shaft is projected; and   an elastic member installed inside the guiding member and elastically supporting the fixing shaft.   
   
   
       13 . The apparatus of  claim 12 , wherein the supporting bracket comprises at least one fixing hole in which the supporting shaft of the fixing unit is inserted.