Motor vehicles – Vehicle trains – Motorized trailer
Patent
1986-12-31
1988-08-09
Pekar, John A.
Motor vehicles
Vehicle trains
Motorized trailer
280404, B62D 5904
Patent
active
047621923
ABSTRACT:
An extended assembly including at least one fore-trailer, a steering dolly and at least one aft-trailer. The fore-trailer has a longitudinally adjustable and pivotal connection between its forward end and a tractor. At least one longitudinally adjustable wheel assembly provides support for the rear of the fore-trailer where there also is a longitudinally adjustable, pivotally mounted load transfer assembly for supporting the forward end of a long massive load. The rear of the load is supported by an aft-trailer and a steering dolly. The steering dolly supports the forward end of the aft-trailer through a longitudinally adjustable pivotal connection while at least one longitudinally adjustable wheel assembly supports the rear of the aft-trailer. The front of the dolly is supported by steerable wheels and the rear is supported by a longitudinally adjustable wheel assembly. Between the forward and rear wheel assemblies of the dolly is a vertically adjustable drive wheel assembly for providing independent propulsion to the rear of the load and for further distributing the rear load. The steering mechanism of the dolly is controlled by a steering wheel on the aft-trailer.
REFERENCES:
patent: 3254903 (1966-06-01), Rodney
patent: 3438652 (1969-04-01), Hoffacker
patent: 3479055 (1969-11-01), Cunha et al.
patent: 4031976 (1977-06-01), Lambert
Beusse James H.
Pekar John A.
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