| 摘要 |
<p>In one preferred form there is provided an accessory (28) for a shank type lifting hook (30). The accessory (28) comprises a mounting portion (32) for receiving the shank (34) of the lifting hook (30). An actuator mechanism (36) is provided for being operated to limit movement of a safety gate (38) to provide a number of operating conditions (58). The operating conditions (58) include a locked condition (40) in which the safety gate (38) is secured in a closed condition (42) so as to extend across the opening of the hook portion (46) of the lifting hook (30)so that the hook portion (46) is able to securely hold a lifting load.</p> |
