US 4,986,367 AGranted

Folding row marker

AssigneeKinze Manufacturing, Inc.

InventorJon E. Kinzenbaw

Life of this patent

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Abstract

A folding row marker includes first, inner and second, intermediate sections pivotally coupled together, as well as a third, outer section pivotally coupled to a distal end of the second section. A marker disc is disposed on the distal end of the third section and a hydraulic ram pivotally displaces the second section relative to the first section and further, via connecting linkage, pivotally displaces the third section relative to the second section during extension of the row marker to the use position and retraction of the row marker to the stored position. The first section is adapted for pivoting attachment to an end of a folding toolbar and linkage is provided to maintain all sections of the row marker under application of a positive force in a fixed, fully folded, compact and stable configuration when the toolbar is in the stored position.

Claims16

Dependent claims

For use with a tool bar, a folding row marker comprising:

a first, inner section pivotally coupled to an end of a toolbar member and including an inner mounting bracket on a distal end thereof;
a second, intermediate section pivotally coupled to a distal end of said first section by means of said inner mounting bracket;
a third, outer section having a proximal end pivotally coupled to said second section and a distal end having a market element disposed thereon;
displacement means coupled to said first and second sections for pivotally displacing in a generally vertical direction said first section relative to said toolbar member and said second section relative to said first section in folding and unfolding said row marker between non-use and use positions wherein said displacement means includes a hydraulic ram coupled to said inner mounting bracket for pivotally displacing said inner mounting bracket and said second section about the distal end of said first section;
and
control means coupled to said first and third sections for extending said third section from said second section generally horizontally when in the use position and for applying a positive force to said third section to maintain said third section in closely spaced, fixed relation with respect to said second section when in the non-use position.

3 more elements

Dependencies are inferred from the claim text.