System for connecting a disc to a disc holder, as well as a disc for such system

Abstract

A system for connecting a disc to a disc holder, e.g. for grinding or polishing purposes, has a disc with an operating surface, an opposite connection surface and a protrusion which is mounted to the connection surface. The disc holder has a supporting surface for supporting the connection surface of the disc and a socket in the supporting surface of the disc holder for receiving the protrusion. The connection surface of the disc and the supporting surface of the disc holder are provided with a fixation element distributed over the surfaces outside the protrusion and the socket respectively.

1 . System for connecting a disc ( 1 ) to a disc holder ( 2 ), e.g. for grinding or polishing purposes, said disc ( 1 ) having an operating surface ( 3 ), an opposite connection surface ( 4 ) and a protrusion ( 6 ) which is mounted to said connection surface ( 4 ), said disc holder ( 2 ) having a supporting surface ( 5 ) for supporting the connection surface ( 4 ) of the disc ( 1 ) and a socket ( 7 ) in the supporting surface ( 5 ) of the disc holder ( 2 ) for receiving said protrusion ( 6 ), characterised in that the connection surface ( 4 ) of the disc ( 1 ) and the supporting surface ( 5 ) of the disc holder ( 2 ) are provided with fixation means ( 8 ,  9 ) which are distributed over the said surfaces ( 4 ,  5 ) outside the protrusion ( 6 ) and the socket ( 7 ) respectively. 
     
     
         2 . System according to  claim 1 , wherein the protrusion ( 6 ) has a solid external shape, and the socket ( 7 ) has a free internal space the shape of which corresponds to the shape of the protrusion ( 6 ). 
     
     
         3 . System according to  claim 2 , wherein the external shape of the protrusion ( 6 ) and the internal shape of the socket ( 7 ) are symmetrically in circumferential direction. 
     
     
         4 . System according to  claim 1 , wherein the fixation means ( 8 ,  9 ) on the connection surface ( 4 ) of the disc ( 1 ) and on the supporting surface ( 5 ) of the disc holder ( 2 ) comprise Velcro-Type® or other hook & loop connection means ( 17 ,  10 ), adhesive connection means and/or magnetic connection means. 
     
     
         5 . System according to  claim 1 , wherein the disc ( 1 ) comprises a laminated structure. 
     
     
         6 . System according to  claim 5 , wherein the disc ( 1 ) comprises a metallic layer ( 14 ), one side of which metallic layer ( 14 ) being provided with a grinding layer ( 15 ) or polishing layer and the other side being provided with the protrusion ( 6 ). 
     
     
         7 . System according to  claim 1 , wherein a throughgoing hole has been provided extending through the disc, the disc holder being provided with a corresponding and coaxial feed channel for feeding a liquid to the operating surface of the disc. 
     
     
         8 . System according to  claim 1 , wherein the protrusion and the socket have corresponding cylindrical shapes. 
     
     
         9 . System according to  claim 1 , wherein the protrusion ( 6 ) and the socket ( 7 ) have corresponding conical shapes. 
     
     
         10 . Disc ( 1 ) for use in the system according to  claim 1 , said disc ( 1 ) having an operating surface ( 3 ), an opposite connection surface ( 4 ), a protrusion ( 6 ) which is mounted to the connection surface ( 4 ) of the disc ( 1 ) as well as fixation means ( 8 ) distributed over said connection surface ( 4 ) outside said protrusion ( 6 ). 
     
     
         11 . System according to  claim 2 , wherein the fixation means ( 8 ,  9 ) on the connection surface ( 4 ) of the disc ( 1 ) and on the supporting surface ( 5 ) of the disc holder ( 2 ) comprise Velcro-Type® or other hook & loop connection means ( 17 ,  10 ), adhesive connection means and/or magnetic connection means. 
     
     
         12 . System according to  claim 3 , wherein the fixation means ( 8 ,  9 ) on the connection surface ( 4 ) of the disc ( 1 ) and on the supporting surface ( 5 ) of the disc holder ( 2 ) comprise Velcro-Type® or other hook & loop connection means ( 17 ,  10 ), adhesive connection means and/or magnetic connection means. 
     
     
         13 . System according to  claim 2 , wherein the disc ( 1 ) comprises a laminated structure. 
     
     
         14 . System according to  claim 3 , wherein the disc ( 1 ) comprises a laminated structure. 
     
     
         15 . System according to  claim 4 , wherein the disc ( 1 ) comprises a laminated structure. 
     
     
         16 . System according to  claim 2 , wherein a throughgoing hole has been provided extending through the disc, the disc holder being provided with a corresponding and coaxial feed channel for feeding a liquid to the operating surface of the disc. 
     
     
         17 . System according to  claim 3 , wherein a throughgoing hole has been provided extending through the disc, the disc holder being provided with a corresponding and coaxial feed channel for feeding a liquid to the operating surface of the disc. 
     
     
         18 . System according to  claim 4 , wherein a throughgoing hole has been provided extending through the disc, the disc holder being provided with a corresponding and coaxial feed channel for feeding a liquid to the operating surface of the disc. 
     
     
         19 . System according to  claim 5 , wherein a throughgoing hole has been provided extending through the disc, the disc holder being provided with a corresponding and coaxial feed channel for feeding a liquid to the operating surface of the disc. 
     
     
         20 . System according to  claim 6 , wherein a throughgoing hole has been provided extending through the disc, the disc holder being provided with a corresponding and coaxial feed channel for feeding a liquid to the operating surface of the disc.