Land vehicles – Wheeled – Articulated vehicle
Patent
1991-09-03
1993-06-15
Marmor, Charles A.
Land vehicles
Wheeled
Articulated vehicle
280510, B60D 100
Patent
active
052194361
ABSTRACT:
A trailer hitch assembly is provided for coupling a trailer to a vehicle, the lead vehicle being equipped with a standard ball-type hitch, and the trailer hitch assembly comprising a body securely attached to the trailer, the interior surface thereof forming a cylindrical cavity, the cylindrical cavity being open at one end thereof for insertion of the ball-type hitch and the opposite end thereof being closed, the interior surface at the closed end forming a curved surface which substantially conforms to a portion of the ball-type hitch; a plurality of steel balls rotatably embedded within the body such that a portion of each steel ball extends through the interior surface of the body into the cavity to secure the ball-type hitch within the cavity; and retraction means for temporarily retracting the steel balls completely within the body to allow ingress and egress of the ball-type hitch into and out of the cavity, respectively. Advantageously, a biased, rotatable collar facilitates retraction of the steel balls by allowing alignment of recesses in the retractable collar with recesses formed in the body.
REFERENCES:
patent: 2696392 (1954-12-01), Case
patent: 2755105 (1956-07-01), Wells
patent: 4320907 (1982-03-01), Eaton
Geurts Bryan A.
Marmor Charles A.
Zeender Florian
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