Earth working – With drive means for tool or cleaner – With specific relationship of mast-type hitch to implement
Patent
1981-03-03
1983-11-15
Shapiro, Paul E.
Earth working
With drive means for tool or cleaner
With specific relationship of mast-type hitch to implement
172311, A01B 2304, A01B 3306, A01B 59043
Patent
active
044150393
ABSTRACT:
A soil cultivating implement has a central frame part that extends substantially horizontally perpendicular to the direction of operative travel of the implement, the frame part has lateral arms tiltably connected to its opposite ends about pivot pins which extend in the direction of travel. Each lateral arm has a corresponding group of power drivable rotary soil working members indirectly connected to it and, a strong but simple frame which resists the high operating forces without deformation. The inner ends of the arms are each held between respective spaced apart cheek plates so as to be surrounded on three sides by those two cheek plates and by a respective connecting piece that rigidly couples the pair of cheek plates to one another beneath the corresponding arm. Each arm is tiltable upwardly and downwardly about the axis of the corresponding pivot pin by a hydraulic piston and cylinder assembly and when tilting the arms upwardly, the effective working width of the implement can be greatly reduced in its inoperative transport position. The central frame part and the two lateral arms constitute a single carrier which is connectible to a prime mover vehicle. The carrier is in advance of the rotary soil working members and has side wheels which can be adjusted. The rear of the implement can be supported by a roller.
REFERENCES:
patent: 2731901 (1956-01-01), Tye
patent: 3658361 (1972-04-01), Van Wyk
patent: 3680648 (1972-08-01), Tonsfeldt
patent: 3713495 (1973-01-01), Redford
patent: 3774693 (1973-11-01), Orthman
patent: 3887016 (1975-06-01), Hansen
patent: 4074766 (1978-02-01), Orthman
patent: 4173260 (1979-11-01), Lely et al.
Bom Cornelis J. G.
van der Lely Ary
C. van der Lely N.W.
Shapiro Paul E.
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