Patent ID: 6068062
Filing Date: 2000-05-30
Classification: A01B

Abstract:
A flexible frame section for an agricultural implement adapted for movement over the ground in a forward direction and supporting earthworking tools, the frame including an inner section having an outer support area, the flexible frame section including:at least first and second fore-and-aft spaced, transversely extending tool-carrying ranks having innermost ends pivotally connected to the outer support area for pivoting about a fore-and-aft extending rank axis, the ranks including outermost ends;a support frame having a rear tool-carrying rank pivotally connected to the outer support area for rocking about a fore-and-aft extending support frame axis, the support frame further including an outer leg extending forwardly from the rear rank to a leg end supporting a ground wheel forwardly of the first rank out of interfering relationship with the first rank so that the tools can be spaced along substantially the length of the first rank without interference from the outer leg and the wheel; andrank end support structure connecting the outermost ends to the outer leg of the support frame and facilitating vertical movement of the outermost ends of the ranks relative to each other about the fore-and-aft extending axis for frame section flexibility without unnecessary rotation of the ranks about their length to thereby minimize tool depth of penetration variations resulting from rank rotation during field-working operations.