Fluid wedged double lock fifth wheel

Details Fluid wedged double lock fifth wheel Fluid wedged double lock fifth wheel

1977-03-28

1978-08-15

Pekar, John A.

Land vehicles

Wheeled

Articulated vehicle

B62D 5310, B62D 5312

Patent

active

041067932

ABSTRACT:
A fifth wheel hitch having three kingpin engagement jaws, two being pivotally shiftable and the third being a plunger slidable in a track to engage the kingpin and simultaneously project between the two pivotal jaws to prevent opening thereof. A wedge is transversely shiftable by a two-way fluid cylinder between the plunger and stop surface on the track to lock the jaws closed.

REFERENCES:
patent: 1660946 (1928-02-01), Winn
patent: 2469279 (1949-05-01), Seyferth
patent: 2553959 (1951-05-01), Cook et al.
patent: 2907583 (1959-10-01), Dalton

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