Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1976-05-20
1977-04-26
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
24230AP, 294 83AB, B66C 134
Patent
active
040197719
ABSTRACT:
A releasable connector mechanism having two parallel side plates and first and second shafts extending between the plates on opposite sides thereof. At least one of the shafts is freely rotatable and has a pair of spaced pivot arms attached thereto. The rotatable shaft has a groove or cam surface extending longitudinally along its surface.
A load carrying fulcrum plate having a concave cylindrical pivot surface not more than 180.degree. on one end thereof is inserted between the side plates with the pivot surface supported on the nonrotating shaft. The other end of the fulcrum plate has a swinging latch attached thereto which pivotally contacts the other end of the fulcrum plate and also pivotally contacts the cam or groove in the rotatable shaft.
In its set condition the fulcrum plate is held between the side plates by the nonrotatable shaft and by the swinging latch. Upon rotation of the rotatable shaft by means of a release mechanism and pivot arms, the shaft rotates and the swinging latch falls away from the groove. The fulcrum plate then pivots around the other shaft until it falls completely away from that other shaft and from between the side plates.
REFERENCES:
patent: 2868581 (1959-01-01), Minty et al.
patent: 2904369 (1959-09-01), Campbell
patent: 2981074 (1961-04-01), Wilder
patent: 3602959 (1971-09-01), Perez
patent: 3848226 (1974-11-01), Perez
AMF Incorporated
Cherry Johnny D.
Gallagher John H.
Price George W.
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