发明名称 CHISEL
摘要 The invention relates to a chisel (10) having a chisel head (11) and a chisel shaft (17), wherein near its end facing away from the chisel head the chisel shaft has a threaded portion having a thread (19), wherein the chisel head holds a chisel tip (20) made of a hard material, and wherein near the side facing the chisel shaft the chisel head is provided with a supporting surface (15). Especially when superhard hard materials are used for the chisel tip, a load-optimized chisel design is obtained by a domed supporting surface (15).
申请公布号 WO2015043884(A3) 申请公布日期 2015.10.22
申请号 WO2014EP68499 申请日期 2014.09.01
申请人 BETEK GMBH & CO. KG;WIRTGEN GMBH 发明人 LEHNERT, THOMAS;BUHR, KARSTEN;BARIMANI, CYRUS;HÄHN, GÜNTER;FRIEDERICHS, HEIKO;KAMMERER, KARL;ROTH, MARKUS
分类号 E21C35/18;E21C35/19 主分类号 E21C35/18
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