发明名称 |
Gesteinsanker und Verankerungsvorrichtung |
摘要 |
<p>The present invention relates to a rock bolt comprising first and second ends, a shaft extending between the ends, and an anchoring device extending along a first part of the shaft adjacent the first end. The anchoring device comprises a mandrel, and at least one expansion element overlaying the mandrel. The expansion element is displaced radially outwardly on a predetermined relative movement between the mandrel and the expansion element. The expansion element is joined to a connector to form an anchor assembly. The anchor assembly is keyed to the mandrel. The anchor assembly comprises relative rotation actuator means active during rotation of the anchoring device. The invention further relates to an anchoring device per se.</p> |
申请公布号 |
DE112007002517(T5) |
申请公布日期 |
2009.09.24 |
申请号 |
DE20071102517T |
申请日期 |
2007.10.23 |
申请人 |
SANDVIK INTELLECTUAL PROPERTY AB |
发明人 |
WEAVER, STEVEN;WEBB, DARREN;HORSCH, JOHN;KENNY, MATTHEW |
分类号 |
E21D21/00 |
主分类号 |
E21D21/00 |
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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