A horizontally foldable toolbar includes opposite wings having flex joints which can be selectively locked to prevent flexing of the joints when the wings are in a transport position and unlocked to permit flexing of the joints when the wings are in a field position. The lock assembly includes a hydraulic cylinder with an extendable and retractable arm. Operation of the hydraulic cylinder can be controlled by an operator remotely, such as from a tractor cab. The stroke of the hydraulic cylinder can be adjusted to accommodate wear on the wing components.

An agricultural implement (1) for soil working, comprising a frame (10, 101, 10a, 10b, 10c, 10d, 10e), a number of ground-engaging tools (12, 13) carried by the frame, at least one rolling ground support (11a, 11b), the height position of which is adjustable relative to the frame, a height sensor (31) for contact-free measuring of the height position of the frame relative to a ground surface (G1), and a control unit (15), arranged to receive a signal from the height sensor (31) and to control the height position of the rolling ground support (11a, 11b). At least one of the tools (12, 13) is resilient relative to the frame (10, 101, 10a, 10b, 10c, 10d, 10e). A tool position sensor (32) is arranged to measure the orientation of the tool (12, 13), and the control unit (15) is arranged to receive a signal from the tool position sensor (32) and to calculate a work depth for said tool (12, 13) based on the signal from the height sensor (31) and based on the signal from the tool position sensor (32). Furthermore, a method of determining the work depth of a soil-working agricultural implement is shown.

A system for monitoring frame levelness of an agricultural implement may include first and second sensors configured to detect first and second parameters indicative of forces exerted on first and second ground engaging tools of the implement by the ground, respectively. The system may also include a controller configured to monitor a parameter differential between the first and second parameters based on measurement signals received from the first and second sensors, with the monitored parameter differential being indicative of at least one of pitch or roll of a frame of the implement. The controller may be further configured initiate a control action associated with adjusting the pitch and/or the roll of the frame based on a magnitude of the monitored parameter differential to adjust an orientation of the frame relative to the ground.

A control system for a tillage implement broadly includes front and rear sensors, a leveling assembly, and a controller. The front sensor is positioned on a front of a central section, wherein the front sensor is configured to obtain height information indicative of a height of the front of the central section above a ground. The rear sensor is positioned on a rear of the central section, wherein the rear sensor is configured to obtain height information indicative of a height of the rear of the central section above the ground. The leveling assembly is configured to adjust a front to rear orientation of the central section. The controller is configured to receive the height information from the front sensor and the height information from the rear sensor, and to provide instructions to the leveling assembly to adjust the front to rear orientation of the central section based on the received height information.

An agricultural implement broadly includes a ground-engaging tool, a time-of-flight sensor, and a controller. The time-of-flight sensor is configured to obtain information indicative of seed parameters, furrow parameters, and/or soil condition parameters. The controller is configured to process the information obtained by the time-of-flight sensor to generate the parameters, wherein the controller is further configured to automatically control operation of one or more components of the implement based on the parameters.

A hinge assembly for pivotally connecting a first frame section and a second frame section includes at least one pivot plate pivotally connected to the first mounting structure of the first frame section with a first pin and pivotally connected to the first mounting structure of the second frame section with a second pin. The hinge assembly further includes a linkage bar with a first end pivotally connected to the second mounting structure of the first frame section with a third pin and a second end pivotally connected to the second mounting structure of the second frame section with a fourth pin. The pivot plate and the linkage bar are configured such that the second frame section pivots about the fourth pin during a working state and about the third pin during a transition between the working state and a folding state.

A tillage implement having a frame member extending in a fore-aft direction of the implement, the frame member pivotally connected in a foldable configuration, the frame member comprising a main frame section; a first wing section and a second wing section, each being pivotally connected at opposing lateral sides of the main frame section in the fore-aft direction; and a middle breaker including a first disc coupled to the main frame section, the first disc laterally offset from a centerline of the middle breaker extending in the fore-aft direction, the first disc having a concave side facing towards the centerline, and a second disc coupled to the main frame section, laterally offset from the centerline of the middle breaker, the second disc having a concave side facing towards the centerline.

A method for controlling the actuation of wing sections of an agricultural implement may include regulating a supply of hydraulic fluid to a wing actuator coupled to a wing section to pivot the wing section relative to a center frame section of the implement from a transport position towards a work position. The method may also include monitoring a wheel load associated with at least one wheel of the wing section as the wing section is being moved towards the work position and detecting when the wheel(s) of the wing section contacts the ground based at least in part on the monitored wheel load. In addition, the method may include adjusting one or more flow parameters of the supply of hydraulic fluid to the wing actuator to reduce an actuation rate at which the wing section is being pivoted after detecting that wheel(s) has contacted the ground.

A system for hydraulically leveling a multi-wing agricultural implement having a pressure regulating valve and a folding valve fluidly coupled in parallel between a supply line, configured to provide a supply pressure of hydraulic fluid, and an actuator, configured to move an outer-wing section of the implement between a transport position and a fully-extended position. Specifically, when fluid is supplied to the actuator via the pressure regulating valve, only a portion of the supply pressure is allowed through the pressure regulating valve to the actuator such that the outer-wing section may pivot towards a position where the outer-wing section is substantially level with the inner-wing section. When hydraulic fluid is supplied to the actuator via the folding valve, the outer-wing section is actuated towards the transport position. When hydraulic fluid is supplied to the actuator via the leveling valve, the outer-wing section is leveled relative to the inner-wing section.

An agricultural implement includes a toolbar system having a toolbar frame, an elevator assembly, and a first wing on one side of the toolbar frame. The first wing may be coupled to the elevator and pivotable about a first vertical axis of rotation between an extended and a folded position. Tools may be coupled to the first wing and rotatable relative to a longitudinal axis of the first wing from an operating position below the first wing to a transport/shipping position above the first wing. Further, the first wing may be adapted to be moveable to position the first wing higher than a wheel of the agricultural implement on the same side of the toolbar frame in the folded position. Subsequently, the tools may be circularly rotated and the middle wing and tools pushed down to reduce the overall width and height of the implement for transporting or shipping.