Land vehicles – Wheeled – Articulated vehicle
Patent
1989-02-06
1990-05-01
Hill, Mitchell J.
Land vehicles
Wheeled
Articulated vehicle
2804161, 2804171, 2804181, 2804231, 280433, 280495, 280901, B60D 100
Patent
active
049212664
ABSTRACT:
A fifth wheel gooseneck trailer ball coupling system for user mounting to pickup trucks comprises a multi-piece stress distributing frame and a hammer actuated ball coupling which enables the user to deploy the system in towing or non-towing modes with the use of a simple hammer. The three piece frame comprises a first generally rectangular, bed plate adapted to be disposed upon the bed of the pickup truck and bolted to the chassis, a second, back-up plate of a generally rectangular or square configuration, which is carefully welded at the front center of the bed plate, and a third frame plate, in the form of an annular apertured hammer ball base plate welded to the back-up plate. The hammer ball base plate comprises a rigid steel, annular disk comprising a central threaded orifice which receives the ball coupling. The ball coupling comprises a rigid spherical ball integral with a base portion and a downwardly projecting threaded shaft. A hammer flange welded to the base comprises a generally circular central segment and a pair of integral outwardly projecting ears which may be appropriate pounded by a simple hammer to firmly install or uninstall the ball.
REFERENCES:
patent: 1986149 (1935-01-01), Harris
patent: 4176853 (1979-12-01), Brock
patent: 4183548 (1980-01-01), Schneckloth
Carver Stephen D.
Hill Mitchell J.
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