Locking trailer coupling

Details Locking trailer coupling Locking trailer coupling

1990-06-04

1991-07-23

Marmor, Charles A.

Land vehicles

Wheeled

Articulated vehicle

280504, 280514, B60D 106

Patent

active

050337645

ABSTRACT:
A trailer coupling which receives the annular eye of a drawbar over a rearwardly and upwardly-projecting pintle, has a latch which engages the pintle and overlies the drawbar to prevent the drawbar from becoming dislodged during use. The latch is rotatable forwardly toward the body of the hitch, which is attached to the towing vehicle, to uncover the drawbar and permit its installation onto and removal from the pintle. A pawl mounted on the body of the coupling engages a tang on the latch when the latch is in its latched position to prevent rotation of the latch to its unlatched position. Thus the latch cannot inadvertently open during use. The pawl can be rotated away from the latch when it is desired to install or remove the drawbar.

REFERENCES:
patent: 1955876 (1934-04-01), Ferguson
patent: 2491143 (1947-01-01), Weiss
patent: 2766995 (1956-10-01), Weiss
patent: 2842380 (1956-04-01), Weiss
patent: 4721324 (1988-01-01), Blacklaw

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