Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Load releasing means
Patent
1990-01-26
1992-04-07
Focarino, Margaret A.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Load releasing means
294 8224, 244905, 24602, 24641, B64D 2514, A44B 1125
Patent
active
051021765
ABSTRACT:
The base (46) of a release hook (22) is located between two side members (30, 32) of a hook guide (20). A first end of the hook base (46) carries a first slide pin (50) having end portions projecting into a two-part slot (38, 40) of the guide (20). The second end of the hook base (46) carries a second slide pin (52) having opposite end portions which are movable between the slot (38, 40) and a two-part notch (42, 44). A link (24) is pivotally connected at its first end to an arm (64), which arm (64) is a part of a rotatable member (10) and pivotally moves about a second axis (88). The second end of the link (24) is pivotally attached to the hook base (46) for pivotal movement about a third axis (106). When the second slide pin (52) is within the notch (42, 44), the release hook (22) is held against movement, and the link (24) holds the arm (64) and rotatable member (10) against rotation about a first axis (62). A release pin (24) is positioned within the hook throat (54). A pull on the release pin (26) moves it against a hook tine (60), thus moving the second slide pin (52) from the notch (42, 44) and into the slot (38, 40), and thus freeing the release hook (22) and the link (24) to allow the arm (64) and the rotatable member (10) to rotate about the first axis (62).
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Barnard Delbert J.
Focarino Margaret A.
Pike Andrew C.
The Boeing Company
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