Apparatus for coupling a tractor, a dump trailer and a dump truc

Land vehicles – Wheeled – Articulated vehicle

Patent

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Details

280479R, 280515, B60D 104

Patent

active

042880912

ABSTRACT:
An apparatus for coupling a tractor, a dump trailer and a dump truck wherein the dump trailer is adapted to be selectively towed by the tractor or by the dump truck. A draw bar having a trunnion and a hole at the leading end portion is pivotally mounted on the dump trailer. The trunnion is adapted to be engaged with a gripper mounted on an arm member of the tractor so as to enable the dump trailer to be towed by the tractor. The hole of the draw bar is adapted to be engageable with a coupler pivotally mounted on a rear axle of the dump truck thereby allowing the dump trailer to be drawn by the dump truck.

REFERENCES:
patent: 2475878 (1949-07-01), Clark
patent: 2482868 (1949-09-01), Pollard
patent: 3542399 (1970-11-01), Myers
patent: 3801134 (1974-04-01), Dees
patent: 4015855 (1977-04-01), Murray

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