发明公开
- 专利标题: VERBINDUNG EINER ANKERSTANGE MIT EINEM BOHRGERÄT
- 专利标题(英): Connecting an anchoring rod to a drilling tool
- 专利标题(中): 连接锚杆用钻头
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申请号: EP01274371.2申请日: 2001-07-19
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公开(公告)号: EP1407115A1公开(公告)日: 2004-04-14
- 发明人: PAPOUSEK, Hannes , PAPOUSEK, Herbert
- 申请人: Atlas Copco Mai GmbH
- 申请人地址: Werkstrasse 17,Postfach 8 9710 Feistritz/Drau AT
- 专利权人: Atlas Copco Mai GmbH
- 当前专利权人: Atlas Copco Mai GmbH
- 当前专利权人地址: Werkstrasse 17,Postfach 8 9710 Feistritz/Drau AT
- 代理机构: Beer, Manfred, Dipl.-Ing.
- 国际公布: WO2003008763 20030130
- 主分类号: E21D21/00
- IPC分类号: E21D21/00 ; E21B17/042
摘要:
The invention relates to an anchoring rod (6) for rock anchoring (self-drilling injection bolts), comprising an outer thread (9) for connecting the anchoring rod (6) to a drilling tool (1) via a coupling sleeve (5). The end of the anchoring rod (6), which is screwed into the coupling sleeve (5), comprises a section (12) which has a reduced diameter in comparison with the outer diameter of the anchoring rod (6). The free end of the section (12) of the anchoring rod (6) with the reduced diameter comprises a bevel (11). An open space (23) is thus formed between the inner surface of the coupling sleeve (5) and the reduced diameter end of the anchoring rod (6). Said space stops the anchoring rod (6) from becoming stuck in the coupling sleeve, even when the end of the rod is plastically deformed during the drilling process, so that the anchoring rod (6) can be unscrewed from the coupling sleeve (5) without applying significant force.
公开/授权文献
- EP1407115B1 VERBINDUNG EINER ANKERSTANGE MIT EINEM BOHRGERÄT 公开/授权日:2006-03-15
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