Patent ID: 6148747
Filing Date: 2000-11-21
Classification: A01B,A01C

Abstract:
In a row unit adapted to be mounted to an agricultural implement frame, the combination comprising: a row unit frame; a ground-engaging tool carried on said row unit frame for engaging the soil in use; first and second gauge wheels; first and second gauge wheel arms carrying said first and second gauge wheels respectively and independently pivotally mounted on said row unit frame to set an operating depth of said tool; a first link elongated in a direction transverse of a direction of travel of said row unit and having first and second ends rotationally coupled respectively to said first and second gauge wheel arms, said first link defining a first bearing surface at an intermediate location; a second link mounted to said row unit frame and defining a second bearing surface engaging said first bearing surface such that said second link restrains translational movement of a central portion of said first link in one direction while permitting free rotational movement between the ends of said first link and their associated wheel arms about an axis extending in said direction of elongation of said first link.