Land vehicles – Wheeled – Articulated vehicle
Patent
1982-02-03
1984-05-29
Pekar, John A.
Land vehicles
Wheeled
Articulated vehicle
280443, 280476R, B62D 1304
Patent
active
044510586
ABSTRACT:
The invention provides a transport converter dolly for use as the front wheels of a trailer towed by another vehicle, when it is required to provide a substantial spacing between the vehicle and the trailer so as to meet axle loading requirements of the regulatory authorities. The dolly is connected by a towing connection to a transversely-extending bar connected to the rear of the towing vehicle. The wheels of the dolly are forcibly steered as the vehicle train negociates a curve by means of a steering connection between the bar and the dolly wheels. The steering connection preferably is a parallelogram linkage that can be altered in length without affecting the steering it produces. The dolly wheels may be mounted on steerable stub axles or the entire axle may be swivelled by mounting it to the dolly frame via a turntable bearing. The dolly frame may be fixed to the rear trailer or connected thereto by a fifth wheel connection. A latchable turntable bearing may be provided between the dolly frame and the trailer body to facilitate maneuvering to and from a loading dock.
REFERENCES:
patent: 2092683 (1937-09-01), Stidham
patent: 3105704 (1963-10-01), Schramm
patent: 3995876 (1976-12-01), Ronne
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