Land vehicles – Wheeled – Articulated vehicle
Patent
1992-09-01
1993-11-30
Basinger, Sherman
Land vehicles
Wheeled
Articulated vehicle
172311, 172313, B62D 5300
Patent
active
052658988
ABSTRACT:
Hitching apparatus for pulling a pair of grain drills behind a tractor, alternately in field position wherein the grain drills are in side-by-side and substantially aligned relation with each other, and transport position wherein the grain drills are arranged one behind the other in tandem relation, a pull pole swingably secured to a side portion of the front frame of the first grain drill and swingable between a transport position wherein the front end of the pull pole is aligned forwardly of the central portion of the first grain drill, and a latch mechanism retaining the pull pole in said transport position; and the pull pole being swingable to the field or planting position wherein the front end of the pull pole is substantially aligned with the adjoining side portions of the two grain drills and is retained by the latching mechanism; a swing arm pulling the second grain drill and extending transversely from the pull pole and the front frame of the first grain drill in field position and being retained by the latch mechanism; and the swing arm being swingably attached to the side portion of the first grain drill to swing behind the first grain drill as to locate the second grain drill behind and in tandem relation with the first grain drill in transport position, and a latching mechanism retaining the swing arm in said transport position.
REFERENCES:
patent: 2976058 (1961-03-01), Sandgren
patent: 3064996 (1962-11-01), Roppel
patent: 3162459 (1964-12-01), Marmorine et al.
patent: 3738682 (1973-06-01), Ritter
patent: 4113273 (1978-09-01), Gates
patent: 4213628 (1980-07-01), Hardesty
patent: 4361341 (1982-11-01), Gustafson
patent: 4381118 (1983-04-01), Weeks
patent: 4577881 (1986-03-01), Gerber
patent: 4601484 (1986-07-01), Baker et al.
patent: 4881603 (1989-11-01), Hartman
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