| 摘要 |
PERSONAL HEIGHT RESCUE APPARATUS Abstract Height rescue apparatus having a fall arrest function and a lowering function, s comprises a load element (11) releasably held in a first position relative to a bracket (4), one of the load element or the bracket being for attachment in use relative to a harness (2), a safety line (10) having one end attached relative to the other of the load element or the bracket, the other end of the safety line in use being attached to a secure anchorage, a flexible elongate element being secured at one end to the load element and at the other 1o end to at least one speed control means, release means for releasing the load element from said first position, such that when the load element is released the load element is able to move relative to the bracket at a controllable speed so as to provide a controlled speed of descent, wherein the elongate element is coiled on a rotatable drum and the portion of the elongate element between the load element and the drum has greater strength than the is remainder of the elongate element. |
