Land vehicles – Wheeled – Articulated vehicle
Patent
1975-01-20
1976-03-16
Song, Robert R.
Land vehicles
Wheeled
Articulated vehicle
2801505, 280477, B60D 114
Patent
active
039442594
ABSTRACT:
An improved trailer jacking device and method. The device comprises a trailer tongue frame, an adjustable pivotal strut mounted medially of said frame, and caster and wheel provided with a lock at the lower end of the strut. To connect a vehicle to a trailer equipped with such device, the strut stands in a position back past vertical, holding the tongue and female hitch member at a predetermined height, and the vehicle above the elevation of the hitch ball is backed toward the trailer tongue. As the vehicle pushes the trailer tongue backward, the strut will pivot forward, lowering the female member on the ball hitch and removing the weight of the trailer tongue from the strut. The strut is then moved upward to stowage position, or removed for stowage in the vehicle. To unhitch a trailer from a hitch ball, the strut is placed so that its wheel rests upon the ground in a forward position, the wheel is locked, and as the vehicle is driven forward the strut pivots backward to a position past vertical, raising the trailer tongue and female hitch member above and off of the ball hitch, thus disengaging the trailer from the vehicle.
REFERENCES:
patent: 950545 (1910-03-01), Taubert
patent: 2595453 (1952-05-01), Gilmore
patent: 2865658 (1958-12-01), Dubuque
patent: 3146002 (1964-08-01), Faber
patent: 3315973 (1967-04-01), Marple
patent: 3791676 (1974-02-01), Spratlen
Pekar John A.
Song Robert R.
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