Device to prevent binding of a swivel coupling in a trailer hitc

Details Device to prevent binding of a swivel coupling in a trailer hitc Device to prevent binding of a swivel coupling in a trailer hitc

1977-04-25

1978-05-30

Peters, Jr., Joseph F.

Land vehicles

Wheeled

Articulated vehicle

280432, B60D 112

Patent

active

040920356

ABSTRACT:
A device to prevent binding of the swivel coupling in a trailer hitch array which includes a draft hitch projecting forwardly from the trailer, the swivel coupling being of longitudinal pintle type and projecting rearwardly from the towing vehicle, a mount to which the rear end of the swivel coupling is fixed, and a ball and socket unit connected between the forward end of the draft hitch and the mount; said device being comprised of a yoke connected between the draft hitch and the mount independently of the ball and socket unit, effective to always maintain the relatively rotatable socket centralized on the ball whereby to prevent binding and inoperativeness of such swivel coupling which otherwise frequently occurs in response to lateral cocking of said socket on the ball caused by forces transmitted from the trailer to the draft hitch under certain travel conditions. The device is especially adapted, but not limited, for use in a hitch array in which the draft hitch is of load-leveling type.

REFERENCES:
patent: 3677564 (1972-07-01), Kothmann
patent: 3912300 (1975-10-01), Bryan

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