Land vehicles – Wheeled – Articulated vehicle
Patent
1978-03-29
1979-12-11
Pekar, John A.
Land vehicles
Wheeled
Articulated vehicle
172311, B60D 114
Patent
active
041780094
ABSTRACT:
A drafting structure for a multi-section implement having a plurality of interconnected implement sections arranged abreast to a line of draft includes a pair of spaced draft beams extended generally parallel to the line of draft and a pair of spaced spreader beams extended transversely thereto and forming a generally rectangular rigid frame. The frame is mounted over implement center sections and connected to wing sections thereof by hinges that enable folding of the implement for travel and, which when the implement is unfolded and in its working configuration, disperses and distributes the drafting forces and pressures that tend to cause arching of the center sections. Hitch arms are extended from the frame for connection to a prime mover.
REFERENCES:
patent: 3033296 (1962-05-01), Kaufman et al.
patent: 3150722 (1964-09-01), Tromm
patent: 3337242 (1967-08-01), Richardson
patent: 3414064 (1968-12-01), Foster
patent: 3463241 (1969-08-01), Essex
patent: 3529674 (1970-09-01), Todd et al.
patent: 3534820 (1970-10-01), Groenke
patent: 3810660 (1974-05-01), Peterson
patent: 3935906 (1976-02-01), Neal et al.
patent: 4023623 (1977-05-01), Anderson
patent: 4044842 (1977-08-01), Worick
Pekar John A.
Sunflower Manufacturing Company, Inc.
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