发明名称 Method for anchoring an attachment element
摘要 <p>The method involves drilling a borehole (7) in a constructional component (6) with a percussively-rotationally driven hollow drill (12). The produced drillings and drilling dust are aspirated with a vacuum source (26) e.g. vacuum cleaner, between an outer side of the hollow drill and a borehole wall during drilling of the borehole. The borehole is filled with a self-hardenable mortar immediately after formation of the suction-cleaned borehole. A fastening element e.g. threaded rod, is inserted into the self-hardenable mortar. An independent claim is also included for a method for forming a cleaned borehole in a constructional component for anchoring a fastening element in a constructional component with a self-hardenable mortar.</p>
申请公布号 EP2192261(A1) 申请公布日期 2010.06.02
申请号 EP20090175875 申请日期 2009.11.13
申请人 HILTI AKTIENGESELLSCHAFT 发明人 SCHELL, ANDREAS;BOHN, KLAUS-PETER;CRAMER, TILL
分类号 E21B21/015;B23B51/00;B23Q11/00;B25D17/18;E21D20/00 主分类号 E21B21/015
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