Tractor and trailer combination

Details Tractor and trailer combination Tractor and trailer combination

1980-07-28

1983-02-08

Peters, Jr., Joseph F.

Land vehicles

Wheeled

Articulated vehicle

280476R, 280479R, 280490R, 280492, B60D 114, B62D 5306

Patent

active

043725716

ABSTRACT:
To allow a semi-trailer (9) to be towed by a drawbar tractor (T), a connector device is used to couple the tractor to the trailer. The connector is provided for lifting the trailer, and is arranged so that (i) a single point of articulation is defined between the tractor and trailer, and (ii) no vertical load is transmitted to the tractor from the trailer. The connector includes a sleeve (5) fixedly mounted on the tractor towing plate, an hydraulic ram (4) slidable in the sleeve, a freely rotating castor wheel (3) at the lower end of the ram and a bolt (7) mounted on the ram piston rod (6) for cooperation with the ball socket (10) of the trailer.

REFERENCES:
patent: 2592219 (1952-04-01), West et al.
patent: 2669314 (1954-02-01), Quayle
patent: 3347564 (1967-10-01), Snoozy
patent: 3727698 (1973-04-01), Van Selus
patent: 3837677 (1974-07-01), Haskins
patent: 4106791 (1978-08-01), Greatbatch
patent: 4148499 (1979-04-01), Johnson

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