Adapter (27) of an agricultural implement, having a first, cylindrically contoured section (27a), the external diameter of which is designed to couple the agricultural implement to a US quick-hitch attachment system of an agricultural support vehicle, and having a second, spherically contoured section (27b), the external diameter of which is designed to couple the agricultural implement to a European lower-link attachment system of an agricultural support vehicle.

In accordance with one series of embodiments of the current disclosure, there is provided a tractor hitch system for hitching a tractor to a trailing implement. The tractor hitch system comprises a base, an actuator, a pin and a lever arm. The base is configured to be mountable on a drawbar of the tractor. The actuator is movable between a first position and a second position. The lever arm is attached to the base, connected to the actuator, and attached to the pin. The attachment of the lever arm to the pin allows the pin to pivot and move laterally with respect to the lever arm such that, when the actuator is in the first position, the pin engages the drawbar so as to be able to couple the tractor to the trailing implement, and when the actuator is in the second position, the pin is disengaged from the drawbar so that the tractor is not coupled to the trailing implement.

A ground engagement tool, such as a universal coulter, with an integrated offset to facilitate multiple mounting configurations. In some embodiments, the ground engagement tool includes a polygonal shank, defining, for example, an octagonal or hexagonal cross-section. The polygonal shank enables rotational offset to be secured in discrete rotational orientations. A lower bracket is mounted to a spindle, providing an angular displacement range for angular deflection of the ground engagement tool. The spindle includes a key structure that complements the angular orientations of the polygonal shank so that the lower bracket can be compensated for the rotational offset. A rotational indexing plate enables selection of one of a plurality of angular displacement ranges. Retention rods may be implemented for setting a depth of the tool. A dirt deflector may also be provided, dimensioned to prevent spewing dirt from landing on adjacent plant rows and to prevent fouling in muddy conditions.

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 arm linkage system includes a pair of upper control arms and a pair of lower control arms to attach a crop harvesting header to a harvester frame of an agricultural harvester. The attachment of the header to the harvester via the control arm linkage system allows the header to move relative the harvester, with the header being displaced upward and heeled backwards in response to an upward force being imparted onto a lower surface of the header. The control arm linkage system thus allows the header to automatically adjust and adapt to unexpected raised mound that may be encountered along the path of the header during harvesting.

A towed vehicle hitch tongue includes movably connected front and rear tongue members, and a fully exposed master cylinder connected at opposite ends thereof to the tongue members such that a rearward force urging the front tongue member toward the rear tongue member forces pressurized braking fluid out of a port thereof into a braking circuit configured to exert a braking force. The braking circuit prevents braking until the rearward force warrants braking, provides dampening of the brake action, allows the towed vehicle to reverse, and can provide emergency stopping and dampening of movement of the hitch tongue. Instead of using movable front and rear tongue members, sensors can detect what the towed vehicle is doing, and apply appropriate braking force in response.

A work vehicle multi-coupler assembly having a controlled breakaway feature include a pair of coupling elements that mate along a coupling axis. A shear pin is carried by one of the coupling elements. A coupler mechanism connected to the second coupling element and configured to engage the shear pin to bring the first coupling element into mating engagement with the second coupling element. The coupler mechanism is configured to shear the shear pin to permit movement of the first coupling element away from the second coupling element along the coupling axis during a breakaway event.

A shock-absorbing tongue assembly for coupling a rotary cutter with a work vehicle includes a coupler configured to couple to the work vehicle, and a linkage mechanism having a proximal end at the rotary cutter and a distal end at the coupler. The linkage mechanism includes a suspension element configured to dampen energy transferred between the rotary cutter and the work vehicle, a primary linkage mechanism extending from the rotary cutter, and a secondary linkage mechanism extending between the primary linkage mechanism and the coupler. The secondary linkage mechanism is configured to rotate about the primary linkage mechanism while maintaining the coupler in a level condition.

The invention relates to an arrangement for attaching a working tool to a working machine, preferably to a three-point hitch of the working machine, comprising a pushing arm articulated, at one end, to the working machine, and two pulling arms articulated, at one end, to the working machine. The arrangement comprises a coupling mechanism for attaching the three-point hitch, from the cabin of the working machine, to the working tool, or, to a quick hitch positioned between the working tool and the working machine.

A rear tow hitch assembly connectable to a work tool assembly on a first agricultural implement to tow a second agricultural implement behind the first agricultural implement is provided. The first agricultural implement can be transformable between an operating position and a transport position by pivoting the work tool assembly upwards around a first axis. The rear tow hitch assembly can be shaped to clear the work tool assembly when the first agricultural implement is transformed between the operating position and the transport position while a rear tow hitch assembly remains connected to the second agricultural implement during the transformation.