| 摘要 |
<p>PCT No. PCT/AT94/00177 Sec. 371 Date May 7, 1997 Sec. 102(e) Date May 7, 1997 PCT Filed Nov. 25, 1994 PCT Pub. No. WO96/17153 PCT Pub. Date Jun. 6, 1996For coupling anchor bars (2) of injection anchors, the anchor bars are screwed with their outer threads (4) into a coupling sleeve (1) provided with a corresponding inner thread (5). One of the two anchor bars (2) screwed into the coupling sleeve (1) has a chamfered surface (8) formed by an end chamfer and lies on a break (6) of the inner thread (5) of the coupling sleeve (1). The second anchor bar (2) is screwed into the coupling sleeve (1) until its end face (9) lies completely on the end face (9) of the other anchor bar (2). This ensures an advantageous transmission of forces during drilling and prevents the coupling sleeve (1) from turning during drilling.</p> |
