公开(公告)号：US20070241605A1

公开(公告)日：2007-10-18

申请号：US11578889

申请日：2005-03-10

申请人： Gunter Tewes ,  Jochen Blens ,  Bemd Holl

发明人： Gunter Tewes ,  Jochen Blens ,  Bemd Holl

IPC分类号： E21C35/19

CPC分类号： E21C35/19 ,  E21C2035/191

摘要： A fixing device for a shank chisel including a base part to which a chisel holder is attached in a manner that enables it to be exchanged. The chisel holder has a chisel location for the shank chisel and has a supporting face on which the shank chisel can be supported. The chisel holder is coupled to the base part by a pivot bearing, and the chisel holder rests against a mating face of the base part. This invention provides a stress-optimized design for the above-mentioned arrangement. Thus, according to this invention, when the chisel holder is mounted, a contact area formed between the contact face and the mating face is located between a rotation axis or a rotation path of the pivot bearing and the supporting face.

摘要翻译： 一种用于柄凿的固定装置，其包括以能使其更换的方式附接有凿子保持器的基部。 凿子支架具有用于柄凿的凿子位置，并且具有可以支撑柄凿的支撑面。 凿子保持器通过枢转轴承联接到基部，并且凿子保持器抵靠基部的配合面。 本发明提供了一种用于上述布置的应力优化设计。 因此，根据本发明，当安装凿子保持器时，形成在接触面和配合面之间的接触区域位于枢转轴承的旋转轴线或旋转路径与支撑面之间。