Walk-behind power equipment includes: a main body provided with at least one front wheel and left and right rear wheels and a work unit; travel motors provided for the respective rear wheels; a handle extending from the main body rearward and upward; at least one of a tilt angle detector that detects a tilt angle of the main body and a load detector that detects a downward load applied to the handle; a yaw rate detector that detects a yaw rate; and a control unit that drive-controls the travel motors. The control unit determines whether the main body is in a rearward tilted state based on the tilt angle or the downward load, and if it is determined that the main body is not in the rearward tilted state, performs straight-line travel control to set a rotational speed difference between the travel motors to reduce the yaw rate.

A cultivating disc for a tillage implement includes an attachment portion positioned at a radial center of the cultivating disc. The attachment portion includes one or more attachment features configured to couple the cultivating disc to the tillage implement about an axis of rotation of the cultivating disc. The attachment portion extends along a first plane perpendicular to the axis of rotation of the cultivating disc. The cultivating disc also includes a cutting edge portion positioned at a distal end of the cultivating disc relative to the axis of rotation. The cutting edge portion extends along a second plane parallel to the first plane. The cultivating disc further includes a curved connecting portion positioned between and connecting the attachment portion to the cutting edge portion. The curved connecting portion further defines one or more radii of curvature.

A land clearing attachment for a tractor device includes semi-helically oriented teeth, knives, or blades radially outward from an outer surface of a rotor. Each tooth, knife, or blade is part of a row of teeth, knives, or blades. Each row is oriented with an offset angle such that the spirally orientation completes angular offset of about 90 or less.

A cylindrical device includes semi-helically oriented teeth, knives, or blades radially outward from an outer surface of the cylindrical device or rotor. Each tooth, knife, or blade is part of a row of teeth, knives, or blades. Each row is oriented with an offset angle such that the spirally orientation completes angular offset of about 90 or less. The knives may have sharpened edges that are oriented to cut on different planes as the cylindrical device rotates. The knives may be held in place by holders that have configurations to oriented the knives at certain angles.

A disk blade having a circular blade body of a first base material of a first hardness and having top and a bottom surfaces and an outer edge extending around the blade body. At least one clad bead extends circumferentially about the blade body on the bottom surface adjacent the outer edge of a second hardness greater than the first hardness of the base material. Various bead patterns are possible.

The active coulter system includes a pivotable support structure that vertically adjusts the position of an active coulter component to compensate for changes in the contour of a target field. In the preferred embodiment, a proximity sensor and an associated controller are in electronic communication with a linear actuator assembly. Based on data from the proximity sensor, the controller sends electronic instructions to the linear actuator assembly to automatically move the active coulter component vertically. The system also optionally includes a torque/speed sensor that can operate independently to control the torque and/or power supplied to the active coulter component, or the sensor can interface with the controller and anticipate changes in power needs and increase/decrease power before the operation of the active coulter component is affected.

In one aspect, a system for rotationally driving ground engaging tools of an agricultural implement may include a rotational actuator configured to rotationally drive a ground engaging tool of the implement about a rotational axis. A controller may be configured to determine a current ground speed of the implement based on data received from a sensor. Moreover, the controller may be further configured to determine a rotational output for the rotational actuator based on the current ground speed of the implement such that the tool rotates at a predetermined rotational speed relative to soil within a field. In addition, the controller may be configured to control the operation of the rotational actuator such that the actuator provides the determined rotational output to the tool while the tool is disposed at a working position relative to a soil surface of the field.

In one aspect, a system for rotationally driving ground engaging tools of an agricultural implement may include a rotational actuator configured to rotationally drive a ground engaging tool of the implement about a rotational axis. A controller may be configured to determine a current ground speed of the implement based on data received from a sensor. Moreover, the controller may be further configured to determine a rotational output for the rotational actuator based on the current ground speed of the implement such that the tool rotates at a predetermined rotational speed relative to soil within a field. In addition, the controller may be configured to control the operation of the rotational actuator such that the actuator provides the determined rotational output to the tool while the tool is disposed at a working position relative to a soil surface of the field.

A universal row clearing bracket including a mounting bracket configured to engage a toolbar of a tractor, wherein the mounting bracket may have a yoke engaged therewith. The yoke may connect to a first and second pivoting arm. One end of the pivoting arms configured to engage the yoke such that the yoke prevents the pivoting arms from moving with respect to the receiver past a certain point in at least one direction. The opposite end of the pivoting arms connecting to an interchangeable shoe, the interchangeable shoe configured to pivotally engage at least one engaging wheel and be replaced for other shoes to support different size engaging wheels.

A land clearing attachment for a tractor device includes semi-helically oriented teeth, knives, or blades radially outward from an outer surface of a rotor. Each tooth, knife, or blade is part of a row of independent teeth, knives, or blades. Each row is oriented with an offset angle such that the spirally orientation completes angular offset of about 90 or less.