发明名称 |
SEILANKER |
摘要 |
<p>A cable bolt (10) for use in mining excavations comprising a plurality of generally closely spaced wires or strands (11) which have a first end for fitting into a bore hole (21) formed in an excavation and a second end which is terminated within a cylindrical sleeve (17). The sleeve (17) has a threaded external surface for receiving a lock nut (18) which is tightened against a bearing plate (19) so as to tension the cable bolt (10). The wires or strands (11) are separated outwardly from a central longitudinal axis of the cable bolt (10) at spaced locations along the length of the cable bolt to form a "bird cage" (13) at each location. Spacers (14) are provided at each location to cause the outward separation of the wires or strands (11). A central tubular member (12) extends along the axis through the sleeve (17) and each spacer (14).</p> |
申请公布号 |
AT255677(T) |
申请公布日期 |
2003.12.15 |
申请号 |
AT19970938674T |
申请日期 |
1997.09.09 |
申请人 |
QUANTAX PTY. LTD. |
发明人 |
HUTCHINS, WARWICK, BERNARD |
分类号 |
E21D20/00;E21D20/02;E21D21/00;(IPC1-7):E21D21/00 |
主分类号 |
E21D20/00 |
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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