发明名称 |
INSTALLATION METHOD FOR AN EXPANSION ANCHOR AND IMPACT SCREWDRIVER FOR INSTALLING AN EXPANSION ANCHOR |
摘要 |
An installation method for an expansion anchor is carried out by repeatedly exerting rotary-percussive strikes onto the shank (2) of the expansion anchor (1) by an impact screwdriver. The repeat rate (Ntarget) of the rotary-percussive strikes is selected as a function of the tightening torque prescribed for expanding the expansion sleeve (3) of the expansion anchor (1). The impact screwdriver stops generating rotary-percussive strikes when the detected mean rotational speed (d) of the shank falls below a threshold value (D). |
申请公布号 |
US2012222876(A1) |
申请公布日期 |
2012.09.06 |
申请号 |
US201213405817 |
申请日期 |
2012.02.27 |
申请人 |
SCHMIDT PEER;APPL JOERG;KHANDOZHKO SERVEY;HILTI AKTIENGESELLSCHAFT |
发明人 |
SCHMIDT PEER;APPL JOERG;KHANDOZHKO SERVEY |
分类号 |
B25B21/02;B25B23/151 |
主分类号 |
B25B21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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