Patent ID: 6378952
Filing Date: 2002-04-30
Classification: B28D,E21C

Abstract:
In a tool for at least one of a coal cutting machine, a mining machine and a road cutting machine, having a round-shaft cutter with a cutter head and a cutter shaft, wherein a wear-protection disk is pushed on the cutter shaft on an upper side of which the cutter head rests, wherein the cutter shaft is captively held in a receiver of a holding projection of a cutter holder in a direction of a center longitudinal axis of the projection but freely rotatable around the center longitudinal axis, wherein the projection has a first support surface which extends at least in sections around the receiver, and on which a wear-protection disk rests with an opposite surface and is supported on a second support surface of the cutter holder, and wherein the cutter head rests on the upper side of the wear-protection disk facing away from the support surface, the improvement comprising:the support surface (22) extending transversely with respect to the center longitudinal axis (18) of the receiver (21) up to an exterior dimensional limit of an area of the holding projection (24) adjoining the support surface (22); the wear-protection disk (30) covering an entire radially outwardly located area of the support surface (22) with an opposite face (31) of the wear-protection disk (30); and the holding projection (24) having at least one wear marking arranged behind the wear-protection disk (30).