A trailer device for an agricultural vehicle includes a frame part and a guide part longitudinally, displaceably mounted in the frame part. The guide part includes a coupling element provided on an end face. The frame part is pivoted by a lifting apparatus for raising and lowering the coupling element relative to a base frame for attaching to a load-bearing vehicle structure. The device includes at least one spring element arranged between the base frame and the frame part such that the spring element exerts a pretensioning force on the frame part for assisting the raising of the coupling element.

A work vehicle includes: a chassis; a cab comprising a frame carried by the chassis; a support structure carried by the chassis; a hitch system directly coupled to the support structure and including a pair of lift arms, each of the lift arms being pivotably coupled to the support structure; and an anti-roll system including an anti-roll bar coupled to the frame of the cab and directly coupled to the support structure such that the support structure simultaneously supports both the hitch system and the anti-roll system. A combined hitch and anti-roll system that includes the support structure, hitch system, and anti-roll system and may be removably mounted to a vehicle is also disclosed.

An agricultural tractor having a three-point hitch with a top link. The tractor is provided with a lifting block adjacent the three-point hitch. The lifting block has a retractable cable which can be used to assist in the raising or lowering of the top link, to allow for easy manipulation of the top link by an operator. In addition, the cable of the lifting block can be used to assist in the coupling of a rear attachment system of the tractor with relatively heavy implements.

A method and a device for hitching a tool to an agricultural vehicle by a system for coupling the agricultural vehicle to a first frame, the coupling system including two hooks which extend substantially in the progression direction of the hitch, each of the hooks being provided with a first end that is proximal and a second end that is distal relative to the first free frame and being intended to be connected to the tool, the second free ends defining, once connected to the tool, a direction, the coupling system further having elements which are positioned between the first proximal ends of the hooks and the first frame in order to pivot, about the vertical axis, the direction, defined by the second free distal ends.

An arrangement for monitoring and or controlling the driving state of a self-propelled agricultural working machine comprising a variable-position interface for attaching an implement that is provided with a control device. Vehicle-specific data, a position signal regarding the position of the interface, and implement data regarding physical properties of an implement mounted on the interface can be supplied to the control device. The control device is operated to evaluate at least one the driving state of the working machine, taking into consideration the above-mentioned signals and data to control the working machine.

A rolling soil probe which may be pulled by a tractor or a truck or mounted on a trailer. The rolling soil probe includes a rotatable square wheel having four sides, each of which has a soil probe extending outwardly therefrom.

Hitch mount systems for connecting an implement to a vehicle having two hitch arms are disclosed. The hitch mount systems may include a shaft configured to be attached to the two hitch arms of the vehicle and a yoke assembly. The yoke assembly includes first and second shaft slots for removably receiving the shaft.

Two-point hitch mount systems for connecting an implement to a tow vehicle having two hitch arms are disclosed. The hitch mount systems may include a shaft configured to be attached to the two hitch arms of the tow vehicle and a yoke assembly. The yoke assembly includes a first and second shaft slots for removably receiving the shaft.

An agricultural tractor having a three-point hitch with a top link. The tractor is provided with a lifting block adjacent the three-point hitch. The lifting block has a retractable cable which can be used to assist in the raising or lowering of the top link, to allow for easy manipulation of the top link by an operator. In addition, the cable of the lifting block can be used to assist in the coupling of a rear attachment system of the tractor with relatively heavy implements.

A method is provided for calculating characteristic geometrical or control variables of a three-point hitch for an agricultural tractor in which the hitch includes a lifting strut having a mounting position which is adjustable by means of a lifting arm in one of a plurality of receiving holes formed in a lower link and the hitch is pivotable by the lifting strut. The method includes moving the lower link initially into a horizontal angle position =0 and capturing the corresponding angular position P.sub.x, P.sub.z of the lifting arm and a corresponding angular position of the lifting strut relative to the vertical. The method further includes determining which of the receiving holes satisfies a geometrical constraint condition and determining the mounting position of the lifting strut on the lower link.