| 摘要 |
A cargo hook system having a drogue which may be supported on the nose of a helicopter; a cargo hook assembly and a probe supported from the cargo hook assembly, said cargo hook assembly having a hook movable from an open to a closed position, and means to maintain the hook in an unloaded condition in a direction facing toward the probe, means to position the hook in any desired direction when supporting a load, means to open and close the hook, means to lock the hook in its closed position when loaded, and latch means to prevent removal of a load from said hook in its closed position; support means for the cargo hook assembly which may be connected to a helicopter at or near its center of mass; and means to guide the probe into the drogue, to maintain the probe in the drogue when the cargo hook assembly is not in use, and to release the probe from the drogue when the cargo hook assembly is in use. A cargo hook assembly having a support housing; a hook supported by the housing and being rotatable with respect thereto; the hook having an open and a closed position; means to open and close the hook; means to lock the hook in its closed position when supporting a load; means to bias the rotational direction of the hook to a predetermined position with respect to the support housing; means to position the hook in any desired rotational direction with respect to the support housing when supporting a load; and a latch means to prevent removal of a load from the hook in its closed position. A pick-up adaptor having a plurality of frame members connected pivotally in a sequential end-to-end relation; the end-most frame members connected to load support means; means biasing the frame members to maintain the unloaded adaptor in a collapsed condition in which one of the frame members having a curved and a straight portion has its straight portion in a substantially horizontal position to provide a target area for the engagement of a hook; the frame members forming an inverted V-frame structure when the adaptor is loaded, the load being supported by a hook which engages the horizontal straight portion of the said frame member having a curved portion, the hook sliding upwardly to the curved portion of the member as the adaptor forms an erect inverted V-frame structure under load conditions.
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