King pin lock for semi-trailers

Details King pin lock for semi-trailers King pin lock for semi-trailers

1975-03-17

1976-09-28

Wood, Jr., M. H.

Locks

Special application

For control and machine elements

116 28R, 280433, F16B 4100

Patent

active

039824136

ABSTRACT:
This is a lock which can be quickly and easily attached to the locking groove of the king pin of a trailer to block entrance of the king pin into the attaching slot of the "fifth wheel" of a tractor, the lock having a pair of pivotally connected pin-surrounding locking segments with a snap-in lock element to hold the segments in closed position and also incorporating a safety warning sign to indicate the presence of the lock on the king pin and prevent inadvertent damage to the lock or the tractor unit.

REFERENCES:
patent: 2656706 (1953-10-01), Lucas et al.
patent: 3269159 (1966-08-01), Young
patent: 3785337 (1974-01-01), Flowerday
patent: 3834196 (1974-09-01), Stone

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