| 摘要 |
<p>A safety apparatus (11) comprising a first housing (25) supporting a first spool (17) and a second spool (21) coaxially mounted and independently rotatable. The safety apparatus (11) also comprises a support line (29) extending from the first spool (17) to the second spool (21) via a second support assembly (27). The safety apparatus (11) also comprises a locking device (35) operably movable between a locked condition wherein the first spool (17) and second spool (21) are locked relative to each other and a released condition wherein the first spool (17) and second spool (21) may rotate independently. The locking device (11) is maintained in a locked condition, locking the first spool (17) relative to the second spool (21), when a load of predetermined value, such as the weight of a fallen operator, is exerted upon the support line (29).</p> |
