| 摘要 |
A bottom anchor assembly (10) for a substantially vertically-oriented elongate safety line (70) comprises safety line gripping means (20), safety line tensioning means (80) and a bracket (50). The gripping means (20) includes a manually adjustable clamp (20) and the tensioning means (80) includes a hollow shaft (40) through which the safety line (70) passes. The hollow shaft (40) is externally screw-threaded and carries the load-setting means (80) on its screw-threaded portion (41). The load-setting means (80) is adapted to bear against the underside of the bracket (50) for adjusting the safety line tension to a predetermined value. The bracket (50) may have open jaws (51, 52) for receiving the hollow shaft (40) when it is already installed on the safety line (70). The ends of the open jaws (51, 52) may be provided with down-turned portions (53, 54) for preventing accidental removal of the load-setting means (80) from between the jaws (51, 52) when the system is adjusted to its predetermined tension.
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