Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1976-11-30
1978-12-05
Shapiro, Paul E.
Earth working
With drive means for tool or cleaner
Plural driven tools
172 50, 172 63, 172 70, 172103, 172767, A01B 3306
Patent
active
041281292
ABSTRACT:
A soil cultivating machine has a row of tined rotors on an elongated frame portion that extends transverse to the direction of travel. An elongated soil crumbling member is pivoted to the frame portion at the front of that portion and settable to level the ground and provide support for the machine. A second elongated crumbling member is linked at the rear of the frame portion for free pivoting responsive to ground irregularities to further crumble the soil worked by the tined rotors. Both crumbling members have parallelogram linkage connections so that the relative positions of the crumbling members to the frame portion can vary without those members tilting. The bottoms of the crumbling members can be corrugated plates or other configured elements designed to bear on the ground and be self cleaning. Also, the rotors can have resilient or freely rotatable mountings to allow for the displacement of tines when meeting obstacles.
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