Tri-fold row marker

A folding row marker for an agricultural implement, the row marker having an extended working position and a retracted storage position, the row marker comprising:

• a winglet having a first end and a second end, the first end of the winglet being pivotally mounted to said agricultural implement;
• an inner arm having a first end and a second end, the first end of the inner arm being pivotally mounted to the second end of the winglet;
• an outer arm having a first end and a second end, the first end of the outer arm being pivotally mounted to the second end of the inner arm;
• a surface marking means mounted on the second end of the outer arm for marking a surface when said row marker is its extended working position;
• a first bell crank being mounted to the winglet and extending upwardly from the winglet;
• a second bell crank being mounted to the winglet and extending downwardly from the winglet;
• a third bell crank being mounted to the inner arm and extending downwardly from the inner arm;
• a first pivot link having a first end and a second end, the first end being pivotally mounted to the inner arm;
• a second pivot link having a first end and a second end, the first end being pivotally mounted to the outer arm;
• a hydraulic cylinder having a first end and a second end, the first end of the hydraulic cylinder being pivotally coupled to said agricultural implement, the second end of the hydraulic cylinder being pivotally coupled to the first bell crank, the hydraulic cylinder having an extended position and a retracted position;
• an inner control arm having a first end and a second end, the first end of the inner control arm being pivotally coupled to said agricultural implement, the second end of the inner control arm being pivotally coupled to the third bell crank;
• an outer control arm having a first and second end, the first end of the outer control arm being pivotally coupled to the second bell crank, the second end of the outer control arm being pivotally coupled to the second ends of both the first and second pivot links;
• whereby retracting the hydraulic cylinder from its extended position to its retracted position pivots the winglet relative to said agricultural implement, the inner arm relative to the winglet and the outer arm relative to the inner arm until the hydraulic cylinder is in its retracted transport position, in extending the hydraulic cylinder from its retracted transport position to its extended working position, the hydraulic cylinder pivots the winglet relative to said agricultural implement, the inner arm relative to the winglet and the outer arm relative to the inner arm until the hydraulic cylinder is in its extended position.