A tool bar and hydraulic system for a large scale agricultural implement. The tool bar includes opposed pivotable wings that are extended in a field configuration and retracted in a transport configuration. In some embodiments, each pivotable wing includes two lift assist assemblies for aiding in the execution of turns in the field, and for aiding in the transport of the agricultural implement. The tool bar may be configured to compensate for twist of the pivotable wings when in the transport configuration. The hydraulic system is configured to stiffen the tool bar assembly for lift assist during field operation and to flex the tool bar into a folded configuration for transport.

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.

The invention relates to an agricultural machine comprising two side units and a chassis that extends in a longitudinal direction and is equipped with two wheels, each side unit being fitted to pivot in relation to the chassis via a respective longitudinal joint around a folding axis parallel to a median plane of the chassis; each side unit comprising a tool unit connected to the chassis by a respective arm and being able to occupy a work position in which it rests on the ground and in which the length of the respective tool unit extends transversely to the longitudinal direction; each side unit being also able to occupy a transport position in which it is remote from the ground and in which the length and width of the respective tool unit are substantially parallel to the median plane. The machine comprises at least a tilter articulated with the chassis around at least one tilting axis oriented transversely to the longitudinal direction, and in the transport position of the side units, each tool unit is closer to the median plane than the respective arm.

An agricultural implement for cultivating an agricultural work area includes a main frame which is transferable between an operating position and a transfer position. A first subframe is connected to the main frame, and the first subframe is transferable between an operating position and a transfer position. A main frame hydraulic cylinder and a first subframe hydraulic cylinder move the main frame and the first subframe between their corresponding positions. In order to provide correct and repeatable positioning of the first subframe hydraulic cylinder, a volume of a first chamber of the main frame hydraulic cylinder is substantially equal to a volume of the first chamber of the first subframe hydraulic cylinder when the first subframe is in its operating position.

The present invention relates to an agricultural machine intended to be hitched to a tractor and comprising two side units and a frame, which extends in a longitudinal direction, each side unit comprising an arm mounted so as to pivot relative to the frame around a respective folding axis oriented substantially parallel to the longitudinal direction, each side unit comprising a tool unit connected to the frame by means of the respective arm and being able to occupy a work position in which it rests on the ground, each side unit also comprising a connection means, which is configured to allow the respective tool unit in work position to move relative to the respective arm and which comprises at least one lightening actuator enabling an upward force to be exerted on each tool unit in work position. It is noteworthy in that the machine comprises a tie-rod connected to each of the arms through a respective upper joint of an axis parallel to the respective folding axis.

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 liquid manure spreader includes a spreader vehicle, a transversely extending injector boom having at least one outer boom section pivotable between a transversely-oriented position and a vertically-oriented position, at least one first actuatable linkage assembly for translating the boom vertically between a lowered working position and a raised position, and at least one second actuatable linkage assembly for arcuately pivoting the boom about an axis parallel to the transverse axis between a highest vertical height position and a lower transport position when the boom is in the raised position and the at least one outer boom section is in the vertically-oriented position.

A hinge for an agricultural machine having a center section having a first aperture, a wheel supporting the center section, a wing section connected to the center section and having a second aperture, and a hinge positioned between the center section and the wing section to permit the wing section to pivot about the center section. The hinge includes a pin which extends through the first and second apertures to connect the wing section to the center section. A first fastener engages the center section or the wing section and is adjacent to the first end of the pin to thereby retain the pin in the first and second apertures. A second fastener engages the center section or the wing section and is adjacent to the second end of the pin to thereby retain the pin in the first and second apertures.

A mower includes a frame, at least one cutting unit, and a lifting unit. The lifting unit is connected to the at least one cutting unit and includes a yoke assembly, a first arm assembly, a second arm assembly, and a third arm assembly. The yoke assembly is connected to the cutting unit. The first arm assembly is pivotably mounted to the vehicle frame about a first pivot axis. The second arm assembly is pivotably mounted to the first arm assembly about a second pivot axis and to the yoke assembly about a third pivot axis with the second pivot axis and third pivot axis being non-parallel to the first pivot axis. The third arm assembly includes a first end pivotally connected to the frame and a second end pivotally connected to the second arm assembly.

A tillage implement includes an implement frame having a first lengthwise frame member, a second lengthwise frame member, and a lateral frame member connected to and extending between the first and second lengthwise frame members. A hitch assembly is rotatably connected to the implement frame. A wheel assembly is connected to the implement frame and moveable between a raised position and a lowered position. A rockshaft is rotatably connected to the implement frame and connected to the wheel assembly. A leveling assembly is connected to the implement frame, the rockshaft, and the hitch assembly. The leveling assembly is configured to adjust the position of the hitch assembly based on movement of the rockshaft. The leveling assembly includes an actuator connected to and aligned with a leveling link.