Paper-separating mechanism

Abstract

A paper-separating plate is adapted for a paper-separating mechanism having a paper-separating roller. The paper-separating plate placed around a side of the paper-separating roller comprises a main body and a cushion. The main body has a surface and a plurality of grooves and the grooves are positioned on the surface. The cushion is positioned on the surface of the main body and covers the grooves. The cushion positioned over the partial grooves is elastically pressed onto the paper-separating roller. The grooves, neighboring one another or each other, linearly extend in a direction substantially parallel with the axis of the paper-separating roller. Besides, the cushion is made of flexible material and the main body is made of rigid material.

1. A paper-separating plate adapted for a paper-separating mechanism having a paper-separating roller and the paper-separating plate, placed around a side of the paper-separating roller , comprising:
 a main body having a surface and a plurality of grooves, the grooves  with at least one groove positioned on the surface are , wherein the at least one groove is lined in parallel with respect  to an axis of the  a paper-separating roller; and  
 a cushion positioned on the surface of the main body and covering the at least one grooves , wherein the cushion positioned over the partial grooves  is elastically pressed onto the paper-separating roller.  
 
     
     
       2. The paper-separating plate according to  claim 1 , wherein the cushion extends over the grooves, neighboring one another or each other, linearly extend in a direction substantially parallel with the axis of the paper-separating roller  at least one groove. 
     
     
       3. The paper-separating plate according to  claim 1 , wherein the cushion is made of flexible material. 
     
     
       4. The paper-separating plate according to  claim 1 , wherein the main body is made of rigid material. 
     
     
       5. A paper-separating mechanism, comprising:
 a paper-separating roller; and  
 a paper-separating plate, placed around a side of  adjacent to the paper-separating roller, comprising: 
 a main body having a first  surface and a plurality of first  grooves, the first grooves  positioned on the first  surface, wherein the plurality of grooves are lined in parallel with respect  to an axis of the paper-separating roller; and  
 a first  cushion positioned on the first  surface of the main body and covering the first  plurality of grooves, wherein the first  cushion positioned over the partial first grooves  is elastically pressed onto the paper-separating roller.  
 
 
     
     
       6. The paper-separating mechanism according to  claim 5 , wherein the first  plurality of grooves, neighboring one another or each other,  linearly extend in a direction substantially parallel with  to the axis of the paper-separating roller. 
     
     
       7. The paper-separating mechanism according to  claim 5 , wherein the first  cushion is made of flexible material. 
     
     
       8. The paper-separating mechanism according to  claim 5 , wherein the main body is made of rigid material. 
     
     
       9. The paper-separating mechanism according to  claim 5 , wherein the paper-separating mechanism  further comprises  comprising a paper-feed roller placed around  having an axis, wherein the paper- feed roller is located near  the paper-separating roller, and wherein the axis of the paper-separating  feed roller is parallel with that  to the axis of the paper-feed  separating roller. 
     
     
       10. A paper-separating mechanism, comprising:
 a paper-separating roller having an axis;  
 a paper-feed roller placed around  having an axis, wherein the paper- feed roller is located near  the paper-separating roller and an  the axis of the paper-separating roller is generally parallel with that  to the axis of the paper-feed roller; and  
 a paper-separating plate, placed around a side  located adjacent to an outer diameter of the paper-separating roller, comprising: 
 a main body having a first surface and  with a plurality of first grooves, the first grooves positioned on the first surface, a plurality of second grooves and a second cushion, the second grooves are placed on  a second surface, the second cushion is placed on the second surface and covers the  with a plurality of second grooves, and the second cushion positioned over the partial second groove is elastically pressed onto the paper-feed roller, and  
 a first cushion positioned on the first surface of the main body and covering the first grooves, wherein the first cushion positioned over the partial first grooves is elastically pressed onto the paper-separating roller  a cushion positioned on the first and second surfaces of the main body.  
 
 
     
     
       11. The paper-separating mechanism according to  claim 10 , wherein the plurality of second grooves, neighboring one another or each other,  linearly extend in a direction substantially parallel with the axis of the paper-feed roller. 
     
     
       12. The paper-separating mechanism according to  claim 10 , wherein the second  cushion is made of flexible material. 
     
     
       13. The paper-separating mechanism according to  claim 10 , wherein there is an acute angle between the  a normal vector of the first surface and the  a normal vector of the second surface. 
     
     
       14. A paper- separating plate, comprising:      a main body having a surface with at least one groove; and        a cushion positioned on the surface of the main body and covering the at least one groove, wherein the cushion covering the at least one groove is elastically pressed onto a paper - separating roller, and wherein the at least one groove is parallel to an axis of the paper - separating roller.     
     
     
       15. The paper- separating plate according to    claim 14   , wherein the at least one groove linearly extends in a direction substantially parallel to the axis of the paper - separating roller.   
     
     
       16. The paper- separating plate according to    claim 14   , wherein the cushion is made of flexible material.   
     
     
       17. The paper- separating plate according to    claim 14   , wherein the main body is made of rigid material.   
     
     
       18. An automatic document feeder, comprising:
   a paper - separating roller having an axis;        a paper - feed roller having an axis, wherein the paper - feed roller is located near the paper - separating roller and the axis of the paper - separating roller is substantially parallel to the axis of the paper - feed roller; and        a paper - separating plate, comprising:      a single main body having a first cushioned surface elastically pressed toward the paper - separating roller and a second cushioned surface elastically pressed toward the paper - feed roller, wherein the main body comprises a plurality of grooves.       
     
     
       19. The automatic document feeder according to  claim 18 , further comprising a cushion positioned on the main body. 
     
     
       20. The automatic document feeder according to  claim 19 , wherein the cushion is configured to deform into the plurality of grooves located beneath the paper- separating roller.   
     
     
       21. The automatic document feeder according to  claim 19 , wherein the cushion covers the plurality of grooves on the main body. 
     
     
       22. The automatic document feeder according to  claim 19 , wherein the cushion is made of flexible material. 
     
     
       23. The paper- separating mechanism according to    claim 10   , wherein the cushion comprises:      a first cushion positioned on the first surface of the main body; and        a second cushion positioned on the second surface of the main body.     
     
     
       24. The automatic document feeder according to  claim 19 , wherein there is an acute angle between a normal vector of the first cushioned surface and a normal vector of the second cushioned surface. 
     
     
       25. The paper- separating mechanism according to    claim 10   , wherein the cushion covers the plurality of first grooves and the plurality of second grooves.