Earth working – Diverse tools – Rolling and non-rolling
Patent
1989-01-27
1990-03-13
Reese, Randolph A.
Earth working
Diverse tools
Rolling and non-rolling
172311, 172532, A01B 7300
Patent
active
049076523
ABSTRACT:
An agricultural implement is disclosed wherein soil packer coils are mounted directly to and between rearwardly extending harrow bars which, in turn, are connected to transversely extending frame members. The harrow tines are located behind the soil packer coils. Each coil is pivotally mounted between a respective pair of harrow arms by means of a pair of link arms which are also free to pivot about the axis of rotation of the coils so that the coils maintain uniform ground engaging contact independent of any up and down movement of the harrow arms.
In one exemplary embodiment, the link arms are provided with axially shortened stub shafts which extend toward each other, generally coincident with the longitudinal axis of the coil, and generally perpendicular to the respective link arms. The stub shafts are receivable within apertures provided in support plates fixed at either end of the coil. In addition, the support plates have affixed thereto, on either side of the apertures, roller bearing assemblies which enable the coil to rotate freely about the otherwise non-rotatable stub shafts.
In another exemplary embodiment, the stub shafts are replaced by half-shafts which extend along the longitudinal axis of the coil, and are separably joined approximately mid-way along the axis of the coil by a sleeve bushing.
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Henry James W.
Nadeau Paul G.
Lambert Anthony R.
Reese Randolph A.
Renn-Vertec Inc.
Thompson Jeffrey L.
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