Business machine and paper feeding mechanism thereof

Abstract

A business machine comprises a paper feeding mechanism for transmitting papers. The paper feeding mechanism comprises a paper pick-up roller, an intermittence gear set connected to the paper pick-up roller, a first power supply connected to and used for driving the intermittence gear set, and a paper separating roller. The intermittence gear set drives the paper pick-up roller and the paper pick-up roller transmits the media at a first feeding speed while the media is in a first feeding position, and the paper separating roller contacts and transmits the media and the paper pick-up roller rotates at a second feeding speed to drive the intermittence gear set to disengage from the first power supply while the media is in a second feeding position.

1 . A paper feeding mechanism for transmitting a media, comprising: 
 a paper pick-up roller;    an intermittence gear set connected to the paper pick-up roller, comprising a first gear and a second gear disposed on an axis;    a first power supply connected to and used for driving the first gear and the second gear of the intermittence gear set to rotate about the axis; and    a paper separating roller;    wherein the second gear of the intermittence gear set drives the paper pick-up roller and the paper pick-up roller transmits the media at a first feeding speed while the media is in a first feeding position, and the paper separating roller contacts and transmits the media and the paper pick-up roller rotates at a second feeding speed to drive the intermittence gear set disengaging from the first power supply while the media is in a second feeding position.    
   
   
       2 . The paper feeding mechanism as claimed in  claim 1 , wherein the media moves the paper pick-up roller rotated at the second feeding speed greater than the first feeding speed while the media is at the second feeding position.  
   
   
       3 . The paper feeding mechanism as claimed in  claim 1 , wherein the intermittence gear set comprises a second gear connected to the paper pick-up roller, wherein the second gear moves the media while the media is at the first feeding position, and the paper pick-up roller moves the second gear and the second gear moves the intermittence gear set disengaging from the first power supply while the media is at the second feeding position.  
   
   
       4 . The paper feeding mechanism as claimed in  claim 1 , wherein the first gear comprises a first protrusion and connects to the first power supply, and the second gear comprises a second protrusion and connects to the paper pick-up roller; 
 wherein the first protrusion pushes the second protrusion to move the second gear rotated at a first gear rotation speed and drives the paper pick-up roller while the media is at the first feeding position, and the paper pick-up roller drives the second gear rotated at a second gear rotation speed greater than the first gear rotation speed while the media is at the second feeding position, so that a force exerted by the first protrusion acts on the second protrusion to push the intermittence gear set to disengage from the first power supply.    
   
   
       5 . The paper feeding mechanism as claimed in  claim 1  further comprising an adjusting gear set and a roller arm connected to the adjusting gear set, wherein the adjusting gear set controls the roller arm rotating between a first roller arm position and a second roller arm position, and the paper pick-up roller and the intermittence gear set are disposed on the roller arm, and the paper pick-up roller contacts the media while the roller arm is at the first roller arm position.  
   
   
       6 . The paper feeding mechanism as claimed in  claim 5 , wherein the roller arm comprises a slot and the intermittence gear set moves between a first intermittence gear set position and a second intermittence gear set position along the slot, and the first power supply drives the intermittence gear set while the intermittence gear set is at the first intermittence gear set position, and the intermittence gear set disengages from the first power supply while the intermittence gear set is at the second intermittence gear set position.  
   
   
       7 . The paper feeding mechanism as claimed in  claim 1  further comprising a roller arm rotatably contacting the paper pick-up roller and a spring disposed between the roller arm and the paper pick-up roller, and the roller arm is at a first roller arm position while the paper pick-up roller moves toward a first paper separating direction, and the roller arm is at a second roller arm position while the paper pick-up roller moves toward a second paper separating direction, and the paper pick-up roller and the intermittence gear set are disposed on the roller arm, and the paper pick-up roller contacts the media while the roller arm is at the first roller arm position.  
   
   
       8 . A business machine for recording data on a media, comprising: 
 a paper feeding mechanism comprising a paper pick-up roller, an intermittence gear set connected to the paper pick-up roller and comprising a first gear and a second gear disposed on an axis, a first power supply connected to and used for driving the first gear and the second gear of the intermittence gear set to rotate about the axis, and a paper separating roller; wherein the second gear of the intermittence gear set drives the paper pick-up roller and the paper pick-up roller transmits the media at a first feeding speed while the media is in a first feeding position, and the paper separating roller contacts and transmits the media and the paper pick-up roller rotates at a second feeding speed to drive the intermittence gear set disengaging from the first power supply while the media is in a second feeding position.    
   
   
       9 . The business machine as claimed in  claim 8 , wherein the media moves the paper pick-up roller rotated at the second feeding speed greater than the first feeding speed while the media is at the second feeding position.  
   
   
       10 . The business machine as claimed in  claim 8 , wherein the second gear is connected to the paper pick-up roller, wherein the second gear moves the media while the media is at the first feeding position, and the paper pick-up roller moves the second gear and the second gear moves the intermittence gear set to disengage from the first power supply while the media is at the second feeding position.  
   
   
       11 . The business machine as claimed in  claim 8 , wherein the first gear comprises a first protrusion and connects to the first power supply, and the second gear comprises a second protrusion and connects to the paper pick-up roller; 
 wherein the first protrusion pushes the second protrusion to move the second gear rotated at a first gear rotation speed and drives the paper pick-up roller while the media is at the first feeding position, and the paper pick-up roller drives the second gear rotated at a second gear rotation speed greater than the first gear rotation speed while the media is at the second feeding position, so that a force exerted by the first protrusion acts on the second protrusion to push the intermittence gear set to disengage from the first power supply.    
   
   
       12 . The business machine as claimed in  claim 8  further comprising an adjusting gear set and a roller arm connected to the adjusting gear set, wherein the adjusting gear set controls the roller arm rotating between a first roller arm position and a second roller arm position, and the paper pick-up roller and the intermittence gear set are disposed on the roller arm, and the paper pick-up roller contacts the media while the roller arm is at the first roller arm position.  
   
   
       13 . The business machine as claimed in  claim 12 , wherein the roller arm comprises a slot and the intermittence gear set moves between a first intermittence gear set position and a second intermittence gear set position along the slot, and the first power supply drives the intermittence gear set while the intermittence gear set is at the first intermittence gear set position, and the intermittence gear set disengages from the first power supply while the intermittence gear set is at the second intermittence gear set position.  
   
   
       14 . The business machine as claimed in  claim 8  further comprising a roller arm rotatably contacting the paper pick-up roller and a spring disposed between the roller arm and the paper pick-up roller, and the roller arm is at a first roller arm position while the paper pick-up roller moves toward a first paper separating direction, and the roller arm is at a second roller arm position while the paper pick-up roller moves toward a second paper separating direction, and the paper pick-up roller and the intermittence gear set are disposed on the roller arm, and the paper pick-up roller contacts the media while the roller arm is at the first roller arm position.