Patent ID: 6213219
Filing Date: 2001-04-10
Classification: A01B

Abstract:
In an agricultural implement having first and second frame sections pivotable relative to each other through an angle of substantially greater than 90 degrees between an extended field-working position and a folded transport position, a compact folding hinge assembly comprising:a first hinge portion connected to the first section and including a pivot defining a pivot axis offset vertically a first distance above the first frame section;a second hinge portion connected to the second section and connected for pivoting about the pivot axis;an extendable and retractable folding cylinder having a base end connected to the first hinge portion and a rod end, the cylinder located substantially below the pivot axis; anda linkage connected between the rod end and the second hinge portion, the linkage located generally below the pivot axis and moving the frame sections between the field working and transport positions with extension and retraction of the cylinder.