Dual use trailer coupling

Details Dual use trailer coupling Dual use trailer coupling

1992-02-14

1994-05-17

Oberleitner, Robert J.

Land vehicles

Wheeled

Articulated vehicle

280514, 403 3, F16C 1106

Patent

active

053121287

ABSTRACT:
A trailer coupling has a removable unitary coupler-receiving element that includes both a ball configured to receive a spherical cavity coupler and a cylindrical neck configured to receive a drawbar eye. A latch is movable about a vertical axis between a closed position, where it engages the coupler-receiving element, and prevents removal of the eye from the neck, and an open position where it is separated from the coupler-receiving element and permits use of the ball. A locking mechanism locks the latch in its closed position and holds it against free movement from its open position. A trigger located in a finger-receiving cavity in the latch releases the locking mechanism. Because the latch rotates about a vertical axis, it can have a low profile and not extend substantially above the ball in the orientation.

REFERENCES:
patent: 3779653 (1973-12-01), Charlton
patent: 3820823 (1974-06-01), Beaston
patent: 3963266 (1976-06-01), Thelin
patent: 4778196 (1988-10-01), Spoliansky

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