Trash cleaning structure for a furrow opening device

Details Trash cleaning structure for a furrow opening device Trash cleaning structure for a furrow opening device

1997-11-06

1999-10-26

Batson, Victor

Planting

Drilling

Including trash control accessory

111157, 111143, 1726245, 172604, A01B 4904

Patent

active

059708921

ABSTRACT:
A shallow-toothed clearing disk pivotally supported from the upper end of the opener drawbar assembly. A four bar linkage is connected to the forward end of the drawbar by a bracket which includes at least one link and corresponding pivot structure located above the drawbar to increase trash clearance and reduce trash build-up. The shallow rounded gullets between pointed teeth provide good disk depth control and trash penetration while reducing soil penetration and soil disturbance. The gullets also hold and prevent sliding of trash away from the clearing influence of the angled disk. The disk effectively clears trash to the side of the opener opposite the gauge wheel to assure optimum depth gauging for the opener. The gear-type structure is capable of operating over a wide range of down pressures and loads while breaking any existing crust in the cleared path with little soil disturbance. The disk provides minimum tillage with little soil and trash throw to assure uniform planting depth, seed germination and plant growth without stimulation of weed growth, both in the row being cleared and in adjacent rows.

REFERENCES:
patent: 5076180 (1991-12-01), Schneider
patent: 5095832 (1992-03-01), Rumbaugh
patent: 5152349 (1992-10-01), Roden
patent: 5255617 (1993-10-01), Williams et al.
patent: 5279236 (1994-01-01), Truax
patent: 5341754 (1994-08-01), Winterton
patent: 5349911 (1994-09-01), Holst et al.
patent: 5461995 (1995-10-01), Winterton
patent: 5555825 (1996-09-01), Geddes
patent: 5657707 (1997-08-01), Dresher et al.
patent: 5660126 (1997-08-01), Freed et al.

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