Abstract: An agricultural machine includes a hitching support, at least one tool or group of tools, at least one support arm which is connected to the hitching support by a first joint and to the tool or tool group, and which is mounted so as to pivot about a transfer axis between operational and raised positions, and a safety device making it possible to carry out a safety movement under the effect of pressure. The safety device includes a lift connected to the hitching support by a second joint. The second joint is offset relative to the first joint in the direction of travel. The safety movement can include a second movement phase during which the lift is able to move the tool or the group of tools away from the ground.

Abstract: An agricultural machine includes a hitching support, at least one tool or group of tools that can be transferred between an operational position and a raised position, at least one support arm that is connected to the hitching support via two joints and to the tool or group of tools at an assembly location, and a safety device for performing a safety movement under the effect of pressure. At least one first safety movement phase is carried out around the first joint or around one of the two joints. The safety device includes at least one guiding device to allow for a variation in a distance between the other of the two joints and the assembly location when the rearward rotation is carried out around the first joint.

Abstract: An agricultural machine hitched to a tractor and includes two side units and a frame, which extends in a longitudinal direction, each side unit including 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 including a tool unit connected to the frame through the respective arm and being able to occupy a work position in which it rests on the ground, each side unit including a connection allowing the respective tool unit in work position to move relative to the respective arm, the connection includes a lightening actuator enabling to exert an upward force on each tool unit in work position. The machine includes a tie-rod connected to each of the arms through a respective upper joint of an axis parallel to the respective folding axis.

Abstract: A method for the vertical calibration of an agricultural machine wear tool is provided. The method includes: placing the wear tool in contact with a reference area; measuring the value of a position variable linked to the positioning of the wear tool when it is in contact with the reference area; determining the theoretical vertical positioning component of the wear tool according to the value measured, based on a reference curve; and determining a matching curve between a vertical positioning component of the wear tool and the position variable, by shifting the reference curve by a value equal to the theoretical vertical component.

Abstract: An agricultural machine includes 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 around a folding axis parallel to a median plane of the chassis. Each side unit includes a tool unit connected to the chassis by an arm and being able to occupy a work position in which the length of the tool unit extends transversely to the longitudinal direction. Each side unit is also able to occupy a transport position in which the length and width of the tool unit are parallel to the median plane. The machine includes a tilter articulated with the chassis around 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.

Abstract: A plant lifting device is mounted on an agricultural machine and includes a drum that is articulated to a frame around a first substantially horizontal axis and which includes a substantially cylindrical casing that has openings through which seizing means intended to lift plants situated outside the casing are able to protrude. A rotor is provided onto which the seizing means are fastened and that is able to be driven in rotation relative to the frame around a second axis directed substantially parallel to the first axis and separate from it, in which, when the device is operated, the second axis is fixed relative to the first axis. A rotational movement transmission means includes at least one rod articulated to the drum on one hand and to the rotor on another hand.

Abstract: A placing unit for a seed drill includes at least two furrow-opening disks and at least two devices for delivery of particulate products from at least one reservoir, the respective ejection outlets of which are situated between the two opener disks in a manner mutually offset along the direction of advance. The placing unit also includes a body carrying the disks and devices. The placing unit includes an elongated assembly for firming of the product or products deposited at the bottom of the furrow, and an interface for linking with the body for the seed-firming assembly, which includes an end for fixation with the interface and an opposite bracing end. The linking interface includes at least two fixation sites for the corresponding end of the assembly, offset longitudinally relative to one another along the direction of advance.

Abstract: An agricultural machine is with skids equipped with interchangeable liners. The agricultural machine is a disk mower, a swather or similar machine, resting at least partly in braced manner on the soil during its use and provided with a working element and with skids designed to slide on the soil. These skids are formed in a lower wall of the working element or are integral with this lower wall, and each skid is provided with a liner having at least one frontal end and a frontal rim on each side of this frontal end. At least one of the frontal rims of the liner of each skid has a relief, at least one part of which penetrates into an indentation formed in the corresponding skid.

Abstract: An agricultural product burying unit for an agricultural machine, configured so as to be mounted in a fixed manner relative to the agricultural machine, includes: a reference device, and a burying device. The reference device is configured to rest on the ground in the work configuration and form a depth positioning reference for the burying device. The burying device is configured to bury an agricultural product in the work configuration. The reference device is configured to be mounted in an articulated manner directly on a reference which is fixed relative to the agricultural machine. The reference device is configured to weigh on the burying device in the work configuration, thereby forming a first device of applying a bearing force on the burying device.

Abstract: A plant lifting device is mounted on an agricultural machine and includes a drum that is articulated to a frame around a first substantially horizontal axis and which includes a substantially cylindrical casing that has openings through which seizing means intended to lift plants situated outside the casing are able to protrude. A rotor is provided onto which the seizing means are fastened and that is able to be driven in rotation relative to the frame around a second axis directed substantially parallel to the first axis and separate from it, in which, when the device is operated, the second axis is fixed relative to the first axis. A rotational movement transmission means includes at least one rod articulated to the drum on one hand and to the rotor on another hand.

Abstract: A working element is mounted on an agricultural machine having a deformable connecting structure including upper arms and lower arms. The connecting structure includes a system for adjusting the down-pressure having a movable mechanism and a reference member. The mechanism includes a lever and a resilient member that are articulated about a first axis. The mechanism allows an engaged state in which it is held against the reference member in a working position, subjecting the working element to a down-pressure, and an adjusting state in which it is movable about a lower axis with respect to the reference member. The mechanism includes a second axis about which the lever is pivotable in an intermediate state.

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: An agricultural machine includes a hitching support, at least one tool or group of tools that can be transferred between an operational position and a raised position, at least one support arm that is connected to the hitching support via two joints and to the tool or group of tools at an assembly location, and a safety device for performing a safety movement under the effect of pressure. At least one first safety movement phase is carried out around the first joint or around one of the two joints. The safety device includes at least one guiding device to allow for a variation in a distance between the other of the two joints and the assembly location when the rearward rotation is carried out around the first joint.

Abstract: An agricultural machine includes a hitching support, at least one tool or group of tools, at least one support arm which is connected to the hitching support by a first joint and to the tool or tool group, and which is mounted so as to pivot about a transfer axis between operational and raised positions, and a safety device making it possible to carry out a safety movement under the effect of pressure. The safety device includes a lift connected to the hitching support by a second joint. The second joint is offset relative to the first joint in the direction of travel. The safety movement can include a second movement phase during which the lift is able to move the tool or the group of tools away from the ground.

Abstract: 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.

Abstract: 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.

Abstract: A method for the vertical calibration of an agricultural machine wear tool is provided. The method includes: placing the wear tool in contact with a reference area; measuring the value of a position variable linked to the positioning of the wear tool when it is in contact with the reference area; determining the theoretical vertical positioning component of the wear tool according to the value measured, based on a reference curve; and determining a matching curve between a vertical positioning component of the wear tool and the position variable, by shifting the reference curve by a value equal to the theoretical vertical component.

Abstract: An agricultural machine including a connecting structure designed to be hitched to a tractor, the connecting structure including a coupling support, a carrier beam and a transmission unit; the transmission unit including a driving pulley, a driven pulley, a transmission element drive-mounted on the driving and driven pulleys, the transmission unit including a transmission element tensioning system; a work unit articulated to the carrier beam via at least one folding axis, the work unit being fitted with at least one work tool, which is driven in rotation. In this machine, the tensioning system applies an unfolding force to the work unit during at least one part of the deployment from a transport position.

Abstract: A placing unit for a seed drill includes at least two furrow-opening disks and at least two devices for delivery of particulate products from at least one reservoir, the respective ejection outlets of which are situated between the two opener disks in a manner mutually offset along the direction of advance. The placing unit also includes a body carrying the disks and devices. The placing unit includes an elongated assembly for firming of the product or products deposited at the bottom of the furrow, and an interface for linking with the body for the seed-firming assembly, which includes an end for fixation with the interface and an opposite bracing end. The linking interface includes at least two fixation sites for the corresponding end of the assembly, offset longitudinally relative to one another along the direction of advance.

Abstract: An agricultural machine for processing cut plants to be moved in a progression's direction, the machine includes a chassis fitted with a hitching device enabling it to be hitched to the tractor vehicle, multiple rotors equipped with raking teeth that can be driven in rotation around substantially vertical driving axes distributed on either side of a median plane passing through the chassis. Each outer rotor and the penultimate rotor adjacent to it, driven in opposite rotational directions, form a module of which a longitudinal plane contains the driving axis of the outer rotor and the driving axis of the penultimate rotor, and, in work configuration, the longitudinal plane of a first module forms, together with the median plane, an acute work angle that is open to the rear, and the longitudinal plane of a second module forms an acute work angle with the median plane open to the rear.