Abstract: An agricultural machine includes a processing unit equipped with an endless belt conveyor and being able to take up a work position in which the conveyor makes it possible to move a product, the movement of the belt being guided by at least two rollers guided in rotation about longitudinal axes; a tensioning system associated with the belt and including an energy accumulator and a tensioning cylinder making it possible to make the distance between the longitudinal axes vary; a regulating system associated with the belt, which prevents, in the work position of the processing unit, oil from flowing from a first pipe connecting the regulating system to a hydraulic control valve, to a second pipe connecting the regulating system to the tensioning cylinder, when the pressure in the second pipe is greater than a maximum value.

Abstract: The invention relates to an agricultural machine intended to be coupled to a tractor vehicle and comprising a work unit connected to a chassis relative to which the work unit can be moved, the machine being able to take up a work configuration in which the work unit rests at least partially on the ground and a transport configuration in which the work unit is raised from the ground. The machine comprises a lightening device having at least one lightening cylinder connected to the chassis on one side and to the work unit on the other side, the lightening cylinder being able to transfer, in the work configuration, at least some of the weight of the work unit onto the chassis.

Abstract: Collection device for cut plant processing machine and corresponding machine This invention relates to the a collection device (2), comprising, on the one hand, a frame (3) and an elongated rotor (5) guided in rotation in relation to the frame (3) about a longitudinal axis (AL), a plurality of raking tines (7) arranged by groups of three or more being mounted on rotor (5), each group of tines (7) being located in its own plane perpendicular to the longitudinal axis (AL), these different planes being laid out along the said longitudinal axis (AL), and, on the other hand, a plurality of deflectors (9) extending at least partially about rotor (5) and spaced out in the direction of the longitudinal axis (AL), the spacing between the two adjacent deflectors (9) being adapted for the passage of the tines (7) of a group during rotation of rotor (5), and in the mounted state the said deflectors (9) being connected to frame (3) by the intermediary of at least one first means of attachment (10).

Abstract: A pick-up device, usable by an agricultural machine, includes a frame and first and second units. The first and second units each include a displacement device, are arranged beside each other and a small distance apart, are connected directly to the frame by respective first and second articulations having first and second distinct axes directed in a direction of advance, include respective first and second pick-up rotors rotatable about third and fourth axes, and are connected to one another by a guidance device. The first and third axes are in a same seventh plane, the second and fourth axes are in a same eighth plane. A stop mechanism defines two work end positions of the first and second units with respect to the frame, between which they can pivot freely within a limited range, and remain connected to one another regardless of their position between the work end positions.

Abstract: An agricultural machine includes a pick-up device with teeth and points, and a guiding device with a lower front end, a rear part and an intermediate part situated above the pick-up device and movable relative to the latter about a rotation center, via a displacement device movable in a first, respectively a second position and including first and second connecting devices which enable the guiding device to pivot about a first, respectively a second rotation center. The first and second connecting devices are geometrically and/or elastically configured so that in the first position, the lower front end is greatly raised above the ground and the intermediate part is brought close to the points, and that in the second position the lower front end is brought greatly close to the ground and the intermediate part and the rear part are distanced from the points.

Abstract: An agricultural machine for forage harvesting, including a frame supporting a work unit able to occupy a work position in which it can pick up plants lying on the ground and shift them sideways, a side deflector being connected to the frame by a connecting device allowing the deflector to occupy an operation position relative to the work unit, in which the deflector can receive a flow of plants shifted sideways by the work unit. The connecting device is designed so that, while the machine moves in a direction and the work unit is in the work position, the deflector can perform a movement relative to the work unit from the operation position, longitudinally in a direction opposite the movement direction, when a resultant of a force exerted on the deflector exceeds a determined threshold.

Abstract: A haymaking machine comprises a harvesting device comprising a rotor driven about an axis which is horizontal and perpendicular to a direction of advance during work, teeth, the points of which describe a curve envelope when the rotor turns about the axis, and a conveyor moving the plants transversely to the direction of advance, the machine comprising a deflector connected to an arm connected to the harvesting device by means of an articulation, about which the arm can pivot between a first position in which the deflector is arranged, during work, beside and at a distance from a lateral end of the harvesting device, and a second position. In the second position and considering the machine during work, the deflector and the arm extend flat and at least partially above the harvesting device.

Abstract: An agricultural machine comprises a pick-up device with teeth and points, and a guiding device with a lower front end, a rear part and an intermediate part situated above the pick-up device and movable relative to the latter about a rotation center, via a displacement device movable in a first, respectively a second position and comprising first and second connecting means which enable the guiding device to pivot about a first, respectively a second rotation center. The first and second connecting means are geometrically and/or elastically configured so that in the first position, the lower front end is greatly raised above the ground and the intermediate part is brought close to the points, and that in the second position the lower front end is brought greatly close to the ground and the intermediate part and the rear part are distanced from the points.

Abstract: A pick-up device, usable by an agricultural machine, includes a frame and first and second units. The first and second units each include a displacement device, are arranged beside each other and a small distance apart, are connected directly to the frame by respective first and second articulations having first and second distinct axes directed in a direction of advance, include respective first and second pick-up rotors rotatable about third and fourth axes, and are connected to one another by a guidance device. The first and third axes are in a same seventh plane, the second and fourth axes are in a same eighth plane. A stop mechanism defines two work end positions of the first and second units with respect to the frame, between which they can pivot freely within a limited range, and remain connected to one another regardless of their position between the work end positions.

Abstract: A pick-up device, usable by an agricultural machine, includes a rotating part including at least one support arm, to which are attached raking and picking up tools and which is configured to pivot about a rotation axis with respect to the rotating part by at least first and second bearings, the at least first and second bearings each including an outer ring rigidly fastened to the rotating part, and with respect to which outer ring the support arm can pivot about the rotation axis. The first bearing includes an inner ring configured to pivot about the rotation axis with respect to the outer ring and rigidly fastened to the support arm. A stop mechanism connects the inner ring to the outer ring, and limits displacement of the support arm with respect to the rotating part in a direction substantially parallel to the rotation axis to a small or nil value.

Abstract: An agricultural machine for harvesting forage including a frame supporting at least one device for picking up plants lying on the ground and at least one device for moving the plants that have been picked up. The machine includes a device for guiding the plants which is situated at least partially above and at a short distance from the pickup device and which is supported by arms which extend rearward above the moving device and whose rear ends are articulated relative to the frame by means of substantially horizontal axes situated, during work, above the rear portion of the moving device and about which they can pivot through a certain angle.

Abstract: The present invention relates to an agricultural machine for harvesting forage comprising a frame (1) supporting at least one device (2) for picking up plants lying on the ground and at least one device (4) for moving the plants that have been picked up. It is notable in that it comprises a device (7) for guiding the plants which is situated at least partially above and at a short distance from the pickup device (2) and which is supported by arms (9) which extend rearward above the moving device (4) and whose rear ends are articulated relative to the frame (1) by means of substantially horizontal axes (11) situated, during work, above the rear portion of the moving device (4) and about which they can pivot through a certain angle.

Abstract: A hay making machine including a carrying structure which can be attached to a tractor such that the carrying structure can travel with the tractor in a forward direction. A substantially vertical support axle is mounted to the carrying structure and supports a rotor having hay making tools. A girder is attached to the support axle. A support structure is articulated to the girder via one substantially vertical pivot spindle positioned forward of the support axle. Two beams, each carrying two carrying wheels, are connected to the support at opposite sides. At curves and turns of the trajectory of the tractor, all of the carrying wheels will pivot together with their beams and the support structure around the pivot spindle. The wheels will therefore be oriented together, without skidding, in the forward direction.