发明名称 Einsteckende für einen Bohrantrieb
摘要 A drill shank has at one end a coupling section (3) to a drill anchoring rod and is provided with an axial bore (12) which extends into a section and continues in a radial bore (11) for introducing a fluid medium into the bore anchoring rod in connection with a fixed adapter part which surrounds the drill shank in the area of the section (9). The fluid medium can be a rinsing medium such as water or air. It may also be a hardenable medium such as a mortar suspension. The drill shank is provided with another duct separated from the bore (12) for guiding a cooling medium. The thus designed drill shank links a drill anchoring rod to a drill drive and also serves to introduce into the drill anchoring rod all media required to drill a bore hole and to set an anchor, depending on the anchoring setting process.
申请公布号 DE19638464(A1) 申请公布日期 1998.03.26
申请号 DE19961038464 申请日期 1996.09.19
申请人 REBURG-PATENTVERWERTUNGSGESELLSCHAFT MBH, 38723 SEESEN, DE 发明人 GRUBER, HEINZ, 38723 SEESEN, DE;MUELLER, THOMAS, 37547 KREIENSEN, DE
分类号 E21D20/00;B23B47/00;B28D1/14;E21B17/02;E21B17/03;E21B21/02;E21D20/02;(IPC1-7):E21B7/20 主分类号 E21D20/00
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