发明名称 Offset mats for mine and tunnel construction
摘要 The mats consist of serrated or flat tensile- and lateral bars (2,3) with clamping sleeves (6). The ends of the tensile bars are attached to a system with the clamping sleeves. A tensionally safe rigid or flexible clamping sleeve connection is formed by the design of a sleeve having kinks (22). The sleeves have a diameter calculated so that when it is kinked by a gripping clamp, pleats are formed which positively engage with the ends (7) of the tensile bars.
申请公布号 DE19735697(A1) 申请公布日期 1998.03.26
申请号 DE19971035697 申请日期 1997.08.16
申请人 BERWALD, WERNER, DIPL.-ING., 59379 SELM, DE;BERWALD, DITHMAR, 59379 SELM, DE 发明人 BERWALD, WERNER, DIPL.-ING., 59379 SELM, DE;BERWALD, DITHMAR, 59379 SELM, DE
分类号 E21D11/15;(IPC1-7):E21D11/15 主分类号 E21D11/15
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