Patent ID: 8113306
Filing Date: 2012-02-14
Classification: A01B,B62D

Abstract:
1. A work unit with power turning comprising: a frame having a first end, a second end, and left and right sides that extend between the first and second ends; a work element carried by the frame; a left propulsion element positioned at the left side of the frame and a right propulsion element positioned at the right side of the frame; a drive arrangement carried by the frame for driving the left and right propulsion elements; and left and right spaced-apart leverage arms that project outwardly from the second end of the frame, at least one of the left and right leverage arms being operatively connected to the drive arrangement such that pressure applied by an operator to the left or right leverage arms in a left or right direction causes the drive arrangement to turn the work unit; wherein the left and right leverage arms are pivotally connected to the frame at separate pivot axes such that the left and right leverage arms can pivot left and right relative to the frame; wherein the left and right leverage arms are linked together so that the left and right leverage arms pivot together as a unit relative to the frame; wherein the left and right leverage arms project outwardly from the frame a distance of at least 12 inches; and wherein the work unit is a walk-behind work unit, wherein the left and right leverage arms angle away from one another as the left and right leverage arms project outwardly from the frame, and wherein the work unit is configured such that the operator stands between the left and right leverage arms as the operator walks with the work unit.