| 摘要 |
A load-supporting means suitable for use on a crane or lifting mechanism comprises an elongate support (2), a hook (1) suspended therefrom, said hook (1) being provided with ejector means (13) mounted around the elongate support (2), the control means (3) controlling the operation of the ejector means (13) of the hook (1), the arrangement being such that the control means (3) is mounted around the elongate support (2) at a location that is above said hook (1) and ejector means (13), and such that the weight of a load carried by the hook (1) depends from and is supported substantially only by the elongate support (2) whereas substantially no weight is carried by the control means (3). The hook (1) can be laid on a deck or floor to stop the hook (1) swinging around while leaving the control means (3) hanging upright and fully accessible for maintenance or repair. Since the control means (3) does not carry load weight, the control means (3) can be much lighter and cheaper than prior art arrangements wherein a hook release control unit has to carry the weight of a load. |
