Motor vehicles – Special wheel base – With means for changing number of supporting wheels – or for...
Patent
1992-06-25
1994-09-06
Tyson, Karin L.
Motor vehicles
Special wheel base
With means for changing number of supporting wheels, or for...
171143, B62D 6112
Patent
active
053439724
ABSTRACT:
An agricultural tractor comprises a front frame section, a rear frame section carrying the engine and cab and a horizontal beam connecting the front frame section to the rear frame section leaving a space between the front and rear wheels and underneath the beam for receiving the implement in a belly mount position. The rear frame section includes auxiliary wheels which are simple non steering wheels movable vertically and braced against rearward movement which can be lowered by a ram to a position to lift the front wheels away from the ground to a height to move over the implement. The front wheels are steerable by a worm and wheel arrangement to a position at right angles to the normal forward direction to allow manouverability. The tractor can be used for the various operations in growing row crops with the implement attached on a three point hitch rearwardly of the front frame section. Harvesting is carried out by a root crop harvester having a lifting part attached to the three point hitch and a cleaning and discharge part attached rearwardly of the tractor frame with a conveyor passing between the two between the rear wheels.
REFERENCES:
patent: 2272603 (1942-02-01), Ellis
patent: 3563329 (1971-02-01), Licari
patent: 3826322 (1974-07-01), Williams
patent: 3972379 (1976-08-01), Norris
patent: 4368793 (1983-01-01), Igarashi
patent: 4446941 (1984-05-01), Laurich-Trost
patent: 4693331 (1987-09-01), Johnson et al.
patent: 5039129 (1991-08-01), Balmer
1 brochure-"Geratetrager 345 GT.360 GT. 380 GT" (18 pages) (A Tractor Brochure from Fendte, a German Company).
Ade Stanley G.
Battison Adrian D.
Thrift Murray E.
Tyson Karin L.
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