Paper separation structure

Abstract

A paper separation structure arranged in an office machine, comprising: a separating roller set having a separating roller and a shaft, and a pick roller arranged to correspond to the separating roller set and contacted with the separating roller set, wherein the separating roller has a roller frame, a shaft hole is formed in the roller frame for accommodating the shaft, and a rubber layer connected with the pick roller, the shaft hole has a narrow inner diameter at a middle of the shaft hole and a wide inner diameter at opposite ends of the shaft hole to form two swing spaces between the middle of the shaft hole and opposite ends of the shaft hole, the roller frame and the rubber layer are swung about a joint between the middle of the shaft hole and the shaft.

What is claimed is: 
     
         1 . A paper separation structure arranged in an office machine, comprising:
 a separating roller set having a separating roller and a shaft, and   a pick roller arranged to correspond to the separating roller set and contacted with the separating roller set, wherein   the separating roller has a roller frame, a shaft hole is formed in the roller frame for accommodating the shaft, and a rubber layer connected with the pick roller, the shaft hole has a narrow inner diameter at a middle of the shaft hole and a wide inner diameter at opposite ends of the shaft hole to form two swing spaces between the middle of the shaft hole and opposite ends of the shaft hole, the roller frame and the rubber layer are swung about a joint between the middle of the shaft hole and the shaft.   
     
     
         2 . The paper separation structure as claimed in  claim 1 , wherein the separation roller has two the roller frames, a connecting portion is connected between the roller frames, the shaft hole is formed in the connecting portion and penetrated through the roller frames. 
     
     
         3 . The paper separation structure as claimed in  claim 2 , wherein the shaft has a limiting ring which is larger than the wide inner diameter of the shaft hole for holding the roller frames and the connecting portion. 
     
     
         4 . The paper separation structure as claimed in  claim 2 , wherein the separating roller set has a frame which covers a top of the separating roller, a joint portion is extended downward from a lower surface of the frame and arranged in corresponding to the connecting portion for being contacted with the connecting portion, a tab is extended upward from an upper surface of the frame and arranged in corresponding to the joint portion, a spring is arranged on the tab, the spring applies a force to the frame to drive the separating roller to contact with the pick roller. 
     
     
         5 . The paper separation structure as claimed in  claim 4 , wherein a clamping block is extended outward and extended radially from the connecting portion of the separating roller, a clamping slot is recessed from the joint portion for holding the clamping block.