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: A mower with a cutter bar including an elongated hollow casing, at least one bearing block mounted at the level of an orifice of the upper wall of the casing, at least one disk integral with a support shaft mounted in the bearing block, at least one cutter fixed with the ability to rotate freely on the disk, wherein each bearing block is made integral with the casing by at least one fastener assembly composed of at least two fastening elements assembled mutually by screwing. The mower wherein, for each fastener assembly, at least part of the zone or zones of engagement of the respectively female-threaded and male-threaded parts of the fastening elements is situated between the respective mutually opposite bracing surfaces of the fastening elements. Thus the fastening elements are less protruding and their connection zones are not subjected to the aggressions of the outside environment.

Abstract: A machine for the harvesting of plants comprises an arm movable between work and transport configuration, a tool comprising lateral ends and being able to occupy a work position and another position, a connecting device via which the tool is connected to the arm and enabling a first movement of the tool relative to the arm, during which the lateral ends move vertically relative to the arm in the same vertical direction relative thereto, the connecting device can operate a second transverse and horizontal movement of the tool relative to the arm and making it possible to operate this second movement independently of the first movement. The connecting device comprises an arm articulated on the support arm about a first transverse and horizontal axis when the support arm is in the work configuration, and this arm can, by pivoting about the first axis, moved vertically relative to the support arm.

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: A mower with a cutter bar including an elongated hollow casing, at least one bearing block mounted at the level of an orifice of the upper wall of the casing, at least one disk integral with a support shaft mounted in the bearing block, at least one cutter fixed with the ability to rotate freely on the disk, wherein each bearing block is made integral with the casing by at least one fastener assembly composed of at least two fastening elements assembled mutually by screwing. The mower wherein, for each fastener assembly, at least part of the zone or zones of engagement of the respectively female-threaded and male-threaded parts of the fastening elements is situated between the respective mutually opposite bracing surfaces of the fastening elements. Thus the fastening elements are less protruding and their connection zones are not subjected to the aggressions of the outside environment.

Abstract: A machine for the harvesting of plants, movable in a direction of advance, comprises an arm movable between work and transport configurations, a tool comprising lateral ends and being able to occupy a work position and another position, a connecting device via which the tool is connected to the arm and enabling a first movement of the tool relative to the arm, during which the lateral ends move vertically relative to the arm in the same vertical direction relative thereto, the connecting device comprising means making it possible to operate a second transverse and horizontal movement of the tool relative to the arm and making it possible to operate this second movement independently of the first movement.

Abstract: A coupling device for an agricultural machine including a support for hitching to a tractor and at least one arm articulated to the support and protruding from the support in a direction parallel to a direction of advance of the tractor, the arm carrying, in an articulated manner, a chassis carrying a work element having a cutting angle relative to the ground to allow fine control of the cutting angle during movements of the work element. The coupling device further includes an upper connecting-rod, a lower connecting-rod, and a central connecting-rod, each of the upper and lower connecting-rods is articulated to the support and the central connecting-rod to form, projected in a vertical plane parallel to the direction of advance, a deformable quadrilateral, and the central connecting-rod is articulated to the chassis. An agricultural machine can include the coupling device.

Abstract: Agricultural machine including a central frame and two work devices, the central frame being connectable to a tractor, and being provided with wheels, each work device being connected to the central frame by a first articulation and being able to be moved between a transport position and a work position.

Abstract: A coupling device for an agricultural machine including a support for hitching to a tractor and at least one arm articulated to the support and protruding from the support in a direction parallel to a direction of advance of the tractor, the arm carrying, in an articulated manner, a chassis carrying a work element having a cutting angle relative to the ground to allow fine control of the cutting angle during movements of the work element. The coupling device further includes an upper connecting-rod, a lower connecting-rod, and a central connecting-rod, each of the upper and lower connecting-rods is articulated to the support and the central connecting-rod to form, projected in a vertical plane parallel to the direction of advance, a deformable quadrilateral, and the central connecting-rod is articulated to the chassis. An agricultural machine can include the coupling device.

Abstract: A machine for the harvesting of plants, movable in a direction of advance, comprises an arm movable between work and transport configurations, a tool comprising lateral ends and being able to occupy a work position and another position, a connecting device via which the tool is connected to the arm and enabling a first movement of the tool relative to the arm, during which the lateral ends move vertically relative to the arm in the same vertical direction relative thereto, the connecting device comprising means making it possible to operate a second transverse and horizontal movement of the tool relative to the arm and making it possible to operate this second movement independently of the first movement.

Abstract: Agricultural machine including a central frame and two work devices, the central frame being connectable to a tractor, and being provided with wheels, each work device being connected to the central frame by a first articulation and being able to be moved between a transport position and a work position.

Abstract: A device for processing fodder including a rotor driven in rotation about its longitudinal axis, a first guide element partially surrounding the rotor, a second guide element configured to occupy at least two positions relative to the rotor, a first control member configured to move the first guide element into at least two positions relative to the rotor and to hold the first guide element in these positions, a link between the first guide element and the second guide element so that a change of position of the first guide element modifies the position of the second guide element, and a second control member configured to dispose the second guide element according to the various configurations.

Abstract: A device for processing fodder including a rotor driven in rotation about its longitudinal axis, a first guide element partially surrounding the rotor, a second guide element configured to occupy at least two positions relative to the rotor, a first control member configured to move the first guide element into at least two positions relative to the rotor and to hold the first guide element in these positions, a link between the first guide element and the second guide element so that a change of position of the first guide element modifies the position of the second guide element, and a second control member configured to dispose the second guide element according to the various configurations.

Abstract: The present invention relates to a haymaking machine, particularly a mower of plant matter with a grouping device allowing the plant matter cut in two passes to be grouped together into a double windrow or alternatively a single windrow to be formed. The grouping device is made of a first member for moving the plant matter toward the rear side of the machine and of a second member for moving the plant matter toward a side, the second moving member being mounted on a support in such a way that it can be moved closer to or away from the first moving member for forming a double windrow or a single windrow.

Abstract: A method and device for automatically adjusting the lightening of a working unit (U) of a machine by use of a hydraulic ram (57) associated with a hydropneumatic accumulator (67). Use is made of a second hydraulic ram (58) of which the piston (53), which can move as far as a predetermined position (PP) in the cylinder (C2) and which is detached from the rod (46) of the first hydraulic ram (57), acts directly or indirectly on the latter rod via the oil (O) contained in the first hydraulic ram (57). The working unit (U) is raised and lowered by the second hydraulic ram (58). When raising the working unit (U), the volume of oil in the first hydraulic ram (57) is increased or decreased in such a way that the working unit (U) is always at a predetermined height (HP) at the end of raising travel.

Abstract: A mowing machine includes a harvesting mechanism which extends during mowing transversely to a working direction, and a lightening device for the harvesting mechanism which includes at least one elastically deformable member whose action can be adjusted by way of an adjustment device connected to the elastically deformable member. The elastically deformable member can include a deformable envelope which contains a gas under adjustable pressure. The adjustment device can include a supply circuit provided with at least one electrovalve or gate connected to the deformable envelope. In an alternative embodiment, the adjustment device can include at least one jack connected to a mechanical spring, and a supply circuit provided with at least one gate or electrovalve connected to the jack.

Abstract: A valve includes a distributor with four ports and two positions. In a first position, a first non-return valve allows only circulation of a fluid from the first port toward the third port, while the second port and the fourth port are directly in communication with one another. In a second position, the third port and the fourth port are directly in communication with one another, while a second non-return valve allows only circulation of fluid from the third port and the fourth port in communication toward the first port.

Abstract: An agricultural machine has a fixed structure, a retractable assembly connected to the fixed structure by at least one joint such that said retractable assembly can move to at least one locking position, and a locking mechanism. The locking mechanism includes (i) at least one stop element mounted for movement with one of the fixed structure and retractable assembly and cooperable with the other of the fixed structure and the retractable assembly to lock the retractable assembly in one locking position; (ii) at least one elastic element cooperating with the at least one stop element to bias the at least one stop element into a stop element lock position in cooperation with the other of the fixed structure and the retractable assembly so as to lock the retractable assembly in the locking position. The stop element is enclosed in the stop lock position such that the stop element can be moved from the said stop lock position only by a special tool.