Fifth wheel for railway trailer hitch including a one-way gate

Details Fifth wheel for railway trailer hitch including a one-way gate Fifth wheel for railway trailer hitch including a one-way gate

1979-02-05

1980-09-30

Love, John J.

Freight accommodation on freight carrier

Load bearer accommodation

Semitrailer accommodation

248119S, 280432, 280436, B60D 112, B60P 708, F16B 900

Patent

active

042252768

ABSTRACT:
A trailer hitch head or fifth wheel is disclosed including a pair of jaws which engage the kingpin of a trailer to hold the kingpin in place. The jaws are held in closed position by a locking member which is biased to the engaged position by at least one stiff spring. A linkage engages the locking member to move the locking member to open position against the bias of the stiff spring. The linkage may be manually or automatically activated. A one-way kingpin gate is located in the front portion of the fifth wheel. The linkage engages an actuator which automatically engages the one-way gate and pivots the same to open position allowing exit of the kingpin. Preferably the linkage is automatically activated by a bumper bar linkage in a tractor operated hitch, and also may be manually activated by the operator. Optionally, a manually operable handle is provided including a keeper or projection which engages a slot in the locking member in open position to hold the locking member in open position.

REFERENCES:
patent: 2411404 (1946-11-01), Ivinn
patent: 3346223 (1967-10-01), Broling

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