Helicopter cargo hook

Details Helicopter cargo hook Helicopter cargo hook

1986-05-14

1987-07-07

Marbert, James B.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Load releasing means

B66C 134

Patent

active

046782192

ABSTRACT:
A releasable self-resetting cargo hook for helicopters and other aircraft for supporting suspended loads. The cargo hook apparatus includes a pivotally supported load arm maintained in its load supporting condition by a pivotally mounted latch arm whose position, in turn, is controlled by a pivotally mounted latch. The position of the latch is determined by a pivotally mounted lock arm lever whose normal position is determined by a stop pin and which is operated by a release mechanism. The interconnection between the latch and lock arm lever is through a cam slot defined on the latch receiving a lock arm lever follower, and the cam slot-follower relationship prevents impact forces imposed on the cargo hook structure from inadvertently producing lock arm lever rotation and latch movement.

REFERENCES:
patent: 3575459 (1971-04-01), Coblenz
patent: 3630562 (1971-12-01), Metz
patent: 3926467 (1975-12-01), Crissy et al.

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