发明名称 Chisel holder with receptacle for chisel shaft - has hard metal ring inserts at top and bottom supported by profiled projection
摘要 The receptacle (2) is equipped with hard metal rings (5, 6) top and bottom supported by a projection (7) at the shoulders (7a, 7b), which is in one piece with the chisel holder (1). Recesses are formed in the projection (7) in which tools for withdrawing the rings can be inserted. These recesses occur near the edge (7c) between the end and the upper or lower shoulder. In the shaft receptacle (2) is a split ring sleeve (8) between the rings which holds the chisel shaft by friction. USE/ADVANTAGE - The receptacle has a longer life due to less wear.
申请公布号 DE4202961(A1) 申请公布日期 1993.08.05
申请号 DE19924202961 申请日期 1992.02.01
申请人 BOART HWF GMBH & CO KG HARTMETALLWERKZEUGFABRIK, 6419 BURGHAUN, DE 发明人 HEIDERICH, ERNST, 6431 HOHENRADE, DE;KREMER, DIETER, 6430 BAD HERSFELD, DE
分类号 E21C35/18 主分类号 E21C35/18
代理机构 代理人
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