Tool for Surface Finish Machining

Abstract

A tool ( 1 ) for surface finish machining, having a cushion ( 6 ) made of an elastic plastics foam, on the underside of which there is formed a working medium face ( 2 ) having working media or adhesives ( 8, 11, 12, 13 ) for the releasable attachment of working medium discs and on the top side of which there is formed a drive receptacle ( 4, 5 ) for application of work, is created as a product that is producible easily and non-critically in high volume, is extremely robust in use, is moisture-resistant and is able to withstand high rotational speeds, in that the elastic plastics foam consists of closed-cell expanded and fused-together particles of a thermoplastic elastomer (TPE).

What is claimed is: 
     
         1 .- 18 . (canceled) 
     
     
         19 . A tool for surface finish machining, comprising:
 a cushion comprising a bottom side with a working material face provided with a working material or with a coupling agent configured to detachably connect a working material disc;   a drive receptacle disposed at a top side of the cushion and configured to introduce working forces into the cushion;   wherein the cushion is comprised of an elastic plastic material foam that is comprised of closed-cell expanded and fused-together particles of a thermoplastic elastomer.   
     
     
         20 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of a urethane-based elastomer. 
     
     
         21 . The tool according to  claim 20 , wherein the elastic plastic material foam is comprised of hard segments and soft segments, wherein the hard segments comprise urethane links and wherein the soft segments comprise links selected from the group consisting of ether links, ester links, and carbonate links. 
     
     
         22 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of thermoplastic polyamide elastomers. 
     
     
         23 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of thermoplastic copolyamides. 
     
     
         24 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of thermoplastic copolyesters. 
     
     
         25 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of thermoplastic olefin elastomer. 
     
     
         26 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of thermoplastic styrene block copolymers with a diene. 
     
     
         27 . The tool according to  claim 19 , wherein the elastic plastic material foam is formed of gas-filled, balloon-shaped, approximately spherical to oval particles joined under pressure and fused with each other at their surfaces under heat. 
     
     
         28 . The tool according to  claim 19 , wherein the elastic plastic material foam is homogenous and embodied without a condensed outer molded skin up to outer rims of the cushion. 
     
     
         29 . The tool according to  claims 19 , wherein the working material face is provided with a surface profiling configured to attach a working material disc thereto. 
     
     
         30 . The tool according to  claim 29 , wherein the surface profiling comprises projections that are distributed across a surface of the working material face and configured to hook or engage a loop texture or fabric texture of a working material disc. 
     
     
         31 . The tool according to  claim 29 , wherein the surface profiling is comprised of suction cups distributed across a surface of the working material face. 
     
     
         32 . The tool according to  claim 19 , wherein the drive receptacle comprises at least one fixed and stiff connecting part that is integrally formed on the cushion during molding of the cushion. 
     
     
         33 . The tool according to  claim 32 , wherein the connecting part comprises a coupling element for a machine drive and a support body that at least partially covers the cushion. 
     
     
         34 . The tool according to  claim 32 , wherein the connecting part comprises at least one grip element configured to manually actuate the tool. 
     
     
         35 . The tool according to  claim 19 , wherein the coupling agent is integrally formed on the working material face during molding of the cushion. 
     
     
         36 . The tool according to  claim 19 , wherein the working material is integrally formed during molding of the cushion on the working material face.