Polishing device

Abstract

A polishing device includes shape following sections opposing a workpiece with a polishing body interposed between the shape following sections and the workpiece, and each including a displaceable shaft section. At least two of the shaft sections adjacent to each other are coupled via a link member. For example, when one of the shaft sections of the shape following sections coupled via the link member retracts by receiving a reaction force from the workpiece, the other of the shaft sections advances.

What is claimed is: 
     
         1 . A polishing device that polishes an object-to-be-polished by an expandable or contractible polishing body, the polishing device comprising:
 a plurality of shape following sections opposing the object-to-be-polished with the polishing body interposed between the shape following sections and the object-to-be-polished, and each including a displaceable shaft section;   a supporting body configured to support the shape following sections; and   a link section configured to couple the shaft sections to each other, wherein   the link section includes a link member configured to couple at least two of the shaft sections adjacent to each other, and   when one of the two shaft sections coupled via the link member retracts by receiving a reaction force from the object-to-be-polished, another of the two shaft sections advances.   
     
     
         2 . The polishing device according to  claim 1 , wherein the link section further includes a separate link member configured to couple the link members to each other. 
     
     
         3 . The polishing device according to  claim 1 , wherein the link section is provided with a locking unit configured to position and fix the shaft section. 
     
     
         4 . The polishing device according to  claim 1 , wherein the shape following sections each include a tip that faces the polishing body and is provided with a swinging section configured to swing. 
     
     
         5 . The polishing device according to  claim 1 , wherein the shape following sections each include a tip that faces the polishing body and is configured to rotate. 
     
     
         6 . The polishing device according to  claim 1 , wherein the plurality of shape following sections are arranged in a zigzag manner. 
     
     
         7 . The polishing device according to  claim 1 , further comprising an eccentric rotation unit configured to eccentrically rotate the supporting body. 
     
     
         8 . The polishing device according to  claim 1 , further comprising a robot configured to hold the supporting body. 
     
     
         9 . The polishing device according to  claim 1 , wherein the polishing body is an endless belt configured to turn, and the polishing device comprises a driving force applying unit configured to apply, to the endless belt, a driving force for turning.