| 摘要 |
The cargo spreader bar (100) is a rectangular frame with longitudinal sid es (120) that are longer than the lateral sides (118e). Hooks (102) are atta ched to the frame along the longitudinal sides (120). The hooks (102) hold c argo hoisting chains (CH) and include actuator (206) controlled, pivoting sa fety locks (208) that close to secure the chains (CH) to the hooks (102). A tubular chain lifter (104) pivotally mounted to the frame extends along one of the longitudinal frame members (120). A second chain lifter (104) extends along the remaining longitudinal frame member (120). Inside sections of the tubular chain lifters (104) are pivotally coupled to a chain lifter actuato r (400). When safety locks (208) are disengaged, an actuator arm (401) can b e commanded to pivot the outside sections of the lifters (104) to swing upwa rd to release the chains (CH) from the hooks (102).
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