Abstract: Seed press wheel for sowing units for precision seeders. The seed press wheel includes a solid tire in the shape of a disc that has a hole or central axis for mounting the tire on a hub. The solid tire has a first portion extending radially from the central axis, and a second portion extending radially from the first portion, the first portion being made of a first material having a first modulus of elasticity value, and the second portion being made of a second material having a second modulus of elasticity value, the first modulus of elasticity value being different from the second modulus of elasticity value.

Abstract: A seed distribution device for precision sowing machines. The device includes a housing for a seed selector disc which is mounted for rotation about a central rotation axis, at least one ring of holes in the seed selector disc which is provided to transport seeds over a circular trajectory, a first singulator and a second singulator which are mounted so as to be radially facing on the housing at opposite sides of the circular trajectory of the seeds and the first and second singulator being distal and proximal with respect to the central rotation axis, respectively, the first singulator and second singulator defining a disruptive selection path for the seeds and being independently and selectively adjustable to modify at least locally the disruptive path so as to eliminate duplicates of seeds from the disc without creating failures.

Abstract: A sowing element (1) for agricultural precision sowing machines (100) comprising a seed selection device (10) which includes a casing (10a) and a perforated disc (18) which is caused to rotate in the casing, a pressurization device associated with the casing in order to subject opposite faces (18a, b) of the disc to a pressure differential, an opening (16) in the casing which is for ventilating one of the faces of the disc and which is or can be pneumatically connected to a filtration system (42) or a remote intake system. In this manner, the introduction of sand and powder inside the seed selection device is prevented.

Abstract: A precision pneumatic seed drill. The seed drill comprises at least one sowing element having a seed selector device housing a perforated selector disc which selects seed and has opposing faces subject to a pressure differential. A sowing duct is associated with the selector device. A system measures the speed of forward movement of the seed drill with reference to the ground being sown in order to vary the rotational speed of the selector disc according to the speed of forward movement measured by the measuring system. A pressurization device associated with the selector disc applies the pressure differential to the faces. An ejector along the sowing duct is fed by a compressed air dispenser for pneumatically accelerating the seeds singled out by the selector device. A device for varying the pressure of compressed air fed to the ejector is calibrated according to the typology of the seed to be sown.

Abstract: A device for processing the soil comprises a frame which carries at least one processing tool and at least one resilient element which has a first end portion which is associated with the processing tool and a second end portion which is associated with the frame by means of connection devices. The connection devices comprise a first laminar element which is arranged in an upper position with respect to the second end portion of the resilient element and a second laminar element which is arranged in a lower position with respect to the second end portion. The connection devices further comprise a separator device which is arranged between the first laminar element and the second laminar element which is capable of forming a separation between the second end portion and the laminar elements which defines a cavity between the first laminar element and the second laminar element, inside which the resilient element can bend.

Abstract: Seed press wheel for sowing units for precision seeders. The seed press wheel includes a solid tire in the shape of a disc that has a hole or central axis for mounting the tire on a hub. The solid tire has a first portion extending radially from the central axis, and a second portion extending radially from the first portion, the first portion being made of a first material having a first modulus of elasticity value, and the second portion being made of a second material having a second modulus of elasticity value, the first modulus of elasticity value being different from the second modulus of elasticity value.

Abstract: A cutter unit for a rotating tilling machine comprises a coupling flange connected to a rotor, a first blade and a second blade that comprises a respective operating portion and a respective coupling portion. The cutter unit further comprises a housing seat for the bladed. The coupling portion of the first blade comprises an opening suitable for housing a locking element for locking said first blade in a direction of extraction of the blades from the housing seat and the blades comprise a respective shaped portion arranged one after the other along the direction of extraction of the blades.

Abstract: A sowing element for precision pneumatic seed drills. The sowing element includes a selector disc for isolating the seed, the selector disc being rotatable about an axis (X), and a conduit for transporting the seed with an initial portion which is proximal to a position for removing the seed from the selector disc and an intermediate portion which extends in continuation of the initial portion. The conduit, at least in the initial portion and in the intermediate portion, is substantially rectilinear and substantially coaxial and has an axis (Y) which is located inside a plane which is substantially perpendicular to the sowing ground and parallel with the sowing advance direction.

Abstract: A sowing element for precision pneumatic seed drills. The sowing element includes a conduit for transporting the seed with an initial portion which is proximal to a device for isolating the seed, an intermediate portion which extends in continuation of the initial portion, and a terminal portion for dispensing the seed; and a pneumatic accelerator which is arranged along the conduit for transporting the seed. The pneumatic accelerator is positioned between the intermediate portion and the terminal portion of the conduit for transporting the seed.

Abstract: A device for coupling towed agricultural machines comprising a fastener for fastening to a frame of the machine, a connecting arm extending substantially longitudinally away from the frame of the agricultural machine, and a coupling head comprising coupling mechanism. The coupling head allows said connecting arm to rotate relative to the towing apparatus about a first axis of rotation which is substantially perpendicular to an operating surface of the agricultural machine. The connecting arm is rotatably connected to the fastener about a second axis of rotation, and further comprises reversible locking mechanism for locking the rotation of the connecting arm.

Abstract: A device for calibrating the product dispensed by a distributor (5) of granular materials comprises a calibration aperture (9) formed in a through-conduit (8) for the granular material between the distributor (5) of the seed and a device (4) for transporting the material, and a gate (10) associated with the calibration aperture (9) and movable between a calibration position, in which the aperture (9) is open and the material from the distributor (5) is conducted via the aperture (9), and a distribution position, in which the aperture (9) is closed and the material is conducted therebeyond along the through-conduit (8), wherein a motorized actuator (11) is connected to the gate (10) so as to make the gate (10) movable between those positions.

Abstract: A seed distribution element (1) includes: —a sowing disc (16) rotated by a motor-driven transmission shaft (20) —a housing (10) with a fixed portion (11) in which the shaft (20) is supported and a portion (12) movable relative to the fixed portion and can be closed against it, with a seed collection chamber (15) in the fixed portion (11) and a pneumatic suction chamber (17) in the movable portion (12), —the sowing disc (16) being interposed between the portions (11, 12) and having opposed surfaces (16a, 16b) delimiting the chambers, and provided with a ring of selector holes (23) extending between the opposed surfaces structure for producing a pressure differential between the opposed surfaces in the region of a circumferential segment of the ring of holes, including the pneumatic suction chamber, and —a seal (24) on the movable portion (12) capable of sliding contact with the facing surface (16a) of the disc (16) when the portions are closed against one another,—a thrust-bearing element (26) of the sowing di

Abstract: A device for calibrating the product dispensed by a distributor (5) of granular materials comprises a calibration aperture (9) formed in a through-conduit (8) for the granular material between the distributor (5) of the seed and a device (4) for transporting the material, and a gate (10) associated with the calibration aperture (9) and movable between a calibration position, in which the aperture (9) is open and the material from the distributor (5) is conducted via the aperture (9), and a distribution position, in which the aperture (9) is closed and the material is conducted therebeyond along the through-conduit (8), wherein a motorized actuator (11) is connected to the gate (10) so as to make the gate (10) movable between those positions.

Abstract: A seed drill with multi-row sowing elements including at least two rows (3, 4) of sowing elements (5), each connected to a respective element carrying bar (9, 10), the bars (9, 10) being parallel and spaced apart, and maintained thus by respective bar supports with respect to which the bars (9, 10) are rotatably supported about their own axis; the bars (9, 10) are connected to each other in rotation in such a way that the rotation of one with respect to the supporting structure is transmitted in an identical manner to the other bar.