Motor vehicles – Having four wheels driven – With means for steering all driven wheels
Patent
1980-12-23
1984-01-10
Pekar, John A.
Motor vehicles
Having four wheels driven
With means for steering all driven wheels
280492, B60K 1730
Patent
active
044248784
ABSTRACT:
A tractor with two engines arranged in tandem, each carried by a frame portion pivotable relative to the other about a vertical axis in a first pivot member under the rear engine and a horizontal axis from second pivot member located in part between two of the tractor's front wheels. The tractor's body is narrow forward and to the rear wherein axles for front and rear sets of ground engaging wheels extend laterally and mount six wheels each. The front engine and rear engines extend completely forward of the respective supporting front and rear sets of ground wheels. Steering is accomplished by the relative pivoting of the front and rear frame portions about the aforesaid vertical axis. A fuel tank extends over all six of the rear set of wheels and includes a depression for an operator's seat. It is optionally hinged at its outer portions so the tractor's width is reduced by removing the outer wheels and pivoting the fuel tank's outer portions to the rear. A lifting device adapted to lift heavy loads extends aft between the central rear wheels and is clearly visible from the operator's seat. The weight distribution on the tractor's frame portions counterbalances loads on the lifting device to minimize stress on the pivot members between the frame portions.
REFERENCES:
patent: 2342407 (1944-02-01), Tourneau
patent: 3061029 (1962-10-01), Pryor
patent: 3220751 (1965-11-01), Tweedale
patent: 3396983 (1968-08-01), Massey et al.
Albright Penrose Lucas
Fugate D. Lynn
Pekar John A.
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