Patent ID: 8894346
Filing Date: 2014-11-25
Classification: E02F,G05G,Y10T

Abstract:
1. A work vehicle comprising: a motor associated with selectable movement of a frame by a first operator control; the frame structurally carrying a cab structure and a manipulating structure associated with an implement for performing work, wherein the manipulating structure is selectably movable by a second operator control located in the cab structure, the manipulating structure is configured to position the implement with respect to three different rotational axes via a first hydraulic circuit and a second hydraulic circuit, the first hydraulic circuit is configured to position the implement with respect to one rotational axis, the second hydraulic circuit is configured to position the implement with respect to two remaining rotational axes, the three rotational axes comprise a first axis, a second axis, and a third axis, the first hydraulic circuit controls pitching movement of the implement about the first axis and the second hydraulic circuit respectively controls tilting and yawing movement of the implement about the second and third axes; and a third operator control coupled to the second operator control and configured to move in a direction that corresponds to a secondary rotational axis, wherein the secondary rotational axis is parallel to the first, second, or third rotational axis, and wherein the third operator control is a thumbwheel; wherein rotation of the second operator control about each of three control axes is configured to cause corresponding rotation of the implement about a respective one of the three different rotational axes, and the second operator control is configured to manipulate all control functions associated with positioning the implement with respect to the three different rotational axes by controlling the first and second hydraulic circuits.