Abstract: An agricultural implement (1) for distributing granular material to ground over which the agricultural implement is travelling comprises a container (14) for the material, a fan (16) for producing an air flow in a primary channel (161, 162), a driveable volumetric feeder unit (141): for feeding the material to the primary channel (161, 162), such that a material laden air flow is produced, a plurality of secondary channels (18) for transporting the material laden air flow, and a plurality of output units (17) which are each connected to one of said secondary channels (18) and have an outlet channel (174) for discharging the material to the ground. Each of the output units (17) comprises a singulator (171), which has a singulating part (1714) which is movable in a singulating space and has a plurality of through-holes, and over which a pressure difference can be applied, such that the singulating part has a high-pressure side and a low-pressure side.

Abstract: A singulating device (171) for singulating granular material in an agricultural implement comprises a metering member (1714), which is movably arranged in a meter chamber (1710) and which presents a plurality of through holes (1715, 1715a, 1715b), which are arranged along a direction of movement of the metering member (1714). The through holes (1715, 1715a, 1715b) are provided as at least one first row of holes and at least one second row of holes (1715, 1715a, 1715b), said rows of holes extending in parallel along the direction of movement. The rows of holes (1715, 1715a, 1715b) are spaced from each other in a direction perpendicular to the direction of movement. The singulating device (171) is connectable to a pressurization device (16), for providing a pressure difference across the metering member (1714), sufficient to cause granules of the material to attach to the metering member (1714) at the holes (1715, 1715a, 1715b).

Abstract: A singulating device (140) for singulating granular material comprises a base part (1401), a singulating part (1407) which is rotatable relative to the base part and which has a plurality of through-holes (14073) for receiving individual granules from said granular material with the ad of a pressure difference between opposite sides of the singulating part (1407), a closure part (1408) which is rotatable relative to the base part and which is attachable to the singulating part (1407), in order to form a closable space, such that the closure part (1408) is rotatable together with the singulating part (1407), and a motor (1409) for driving the closure part (1408) and the singulating part (1407). The singulating part (1407) is idly rotatably supported on the base part (1401). A drive shaft (14092) driven by the motor (1409) can be coupled to a driver arrangement (1408, 1413), in order to cause the driver arrangement to rotate.

Abstract: A singulating device (140) for singulating granular material comprises a base part (1401), a singulating part (1407) which is rotatable relative to the base part and which has a plurality of through-holes (14073) for receiving individual granules from said granular material with the ad of a pressure difference between opposite sides of the singulating part (1407), a closure part (1408) which is rotatable relative to the base part and which is attachable to the singulating part (1407), in order to form a closable space, such that the closure part (1408) is rotatable together with the singulating part (1407), and a motor (1409) for driving the closure part (1408) and the singulating part (1407). The singulating part (1407) is idly rotatably supported on the base part (1401). A drive shaft (14092) driven by the motor (1409) can be coupled to a driver arrangement (1408, 1413), in order to cause the driver arrangement to rotate.

Abstract: This document discloses a row unit (2) for feeding granular material to the ground. The row unit has a seed furrow-opener, which has a seed furrow-opening arm (21) carrying a seed disc (22). The seed furrow-opening arm has a proximal portion, in which the seed furrow-opening arm is pivotable about a first geometrical axis (Rb) and a distal portion, to which the seed disc is rotatably attached. The row unit has a depth regulator, which has a depth-regulating arm (31) carrying a gauge wheel (32). The depth-regulating arm (31) is pivotable about a second geometrical axis (Ra) which is concentric with a centre of rotation for the seed disc. The row unit comprises a first adjusting device for setting the height of the gauge wheel (32) in relation to the seed disc (22).

Abstract: A rotor apparatus for feeding granular or powdered material in an agricultural implement, the rotor apparatus being designed to be received in a partially cylindrical feeder space of a feeder device for volumetric feeding. The rotor apparatus comprises an insert part, which in size and shape is adapted to be inserted into the feeder space and to substantially prevent air from passing the insert part when this is inserted into the feeder space, and a rotor, which is rotatable relative to the insert part. The insert part defines a rotor space, in which the rotor is rotatable, and the rotor is together with the insert part designed to provide an air lock. The insert part comprises a wall portion interacting with the rotor and located radially outside the radially outermost portion of the rotor.

Abstract: A meter housing comprises a meter space with a material inlet and a material outlet, and a wall portion extending between the material inlet and the material outlet. The wall portion has substantially the form of a cylinder sector. The wall portion has a scraper part, which extends substantially parallel to a central axis of the cylinder sector.

Abstract: A method and a device for feeding granular material in an agricultural implement and an agricultural implement comprising such a device. The method includes establishing an air flow through a take-up zone in a direction toward an outlet of the take-up zone from an inlet of the take-up zone. The take-up zone, has an extend which, viewed in a horizontal plane, is defined by a roof above the take-up zone and side walls extending downward from the roof, so that a space, which is open in the downward direction and toward an outlet, is formed between the roof and the side walls. The method also includes feeding the material to the take-up zone with the aid of gravity, so that the material falls in a direction transversely to the airflow into the take-up zone, thus delimiting the space in the downward direction and adjusting an adjustable part which is adjustable between at least two positions, to regulate a flow rate of the airflow in the space between the material and the roof.

Abstract: The present document discloses a rotor apparatus (20) for feeding granular or powdered material in an agricultural implement, the rotor apparatus being designed to be received in a partially cylindrical feeder space of a feeder device for volumetric feeding. The rotor apparatus (20) comprises an insert part (21), which in size and shape is adapted to be inserted into the feeder space and to substantially prevent air from passing the insert part when this is inserted into the feeder space, and a rotor (22), which is rotatable relative to the insert part. The insert part (21) defines a rotor space (218), in which the rotor (22) is rotatable, and the rotor is together with the insert part designed to provide an air lock. The insert part (21) comprises a wall portion (214, 215) interacting with the rotor and located radially outside the radially outermost portion of the rotor.

Abstract: The present document discloses a meter housing for feeding granular or powdered material. The meter housing comprises a meter space with a material inlet and a material outlet, and a wall portion extending between the material inlet and the material outlet. The wall portion has substantially the form of a cylinder sector. The wall portion has a scraper part, which extends substantially parallel to a central axis of the cylinder sector.

Abstract: A separator for separating granular material, such as seed, fertilizer or pesticide, from a material-laden airflow (FI) includes a separator zone (Z) having an inlet (11) for a material-laden airflow, a material outlet (13) and an air outlet (12, 12?), and at least two separator parts (15, 15?), which extend only substantially along a material flow (FM) in the separator zone (Z) and between which is formed a separator gap (12, 12?), which is sufficiently narrow to allow air, but not the granular material, to pass through it. At the material outlet (13), the separator gap (12, 12?) is at least partially open, viewed in a direction which is substantially parallel with the material flow (FM), so that material which gets stuck in the separator gap (12, 12?) is allowed to leave this by means of displacement principally along the material flow (FM).

Abstract: This document relates to a method and a device for feeding granular material in an agricultural implement and to an agricultural implement comprising such a device.

Abstract: A sealing gasket made of a resilient rubber material or rubber-like material. The sealing gasket is formed as a rotationally symmetric body with a substantially constant cross-sectional profile. The cross-sectional profile includes: a first sealing part located furthest away from a center of rotation of the body and a second sealing part located radially inside the first sealing part, as viewed in the radial direction. An open space is defined by the first and second sealing parts. The second sealing part essentially curves through an angle away from the center of rotation. A seed housing can include such a seal and a seeder can include such a seed housing.

Abstract: A device for feeding granular material, such as seed, fertilizer or pesticide is described herein. The device includes at least two metering devices (109), a first drive device (101) for generating a pressurizing airflow (FT) for pressurization of the metering devices (109), and a central container (102), which is arranged to, via respective feed ducts (103), with the aid of a respective feed airflow (FI), feed the material to the respective metering device (109). The device also includes a second drive device (201, 201a, 201b) for generating the feed airflow (FI) and a merging connection (118, 118?) for merging at least a part (FL) of the feed airflow (FI) with the pressurizing airflow (FT).

Abstract: An agricultural implement, for working soil across which the agricultural implement travels or is towed, includes a frame, a first depth maintaining unit, including a first hydraulic actuator for adjusting height of the first depth maintaining unit relative to the frame, a second depth maintaining unit, including a second hydraulic actuator for adjusting height of the second depth maintaining unit relative to the frame, at least one soil working tool, and a hydraulic system including the hydraulic actuators configured to be connected to a mechanism supplying hydraulic fluid to the hydraulic system. A first side of the first hydraulic actuator communicates with a first side of the second hydraulic actuator and a measuring mechanism configured to provide a measured value corresponding to a first amount of hydraulic fluid occurring on said first sides.

Abstract: A sealing gasket made of a resilient rubber material or rubber-like material. The sealing gasket is formed as a rotationally symmetric body with a substantially constant cross-sectional profile. The cross-sectional profile includes: a first sealing part located furthest away from a center of rotation of the body and a second sealing part located radially inside the first sealing part, as viewed in the radial direction. An open space is defined by the first and second sealing parts. The second sealing part essentially curves through an angle away from the center of rotation. A seed housing can include such a seal and a seeder can include such a seed housing.

Abstract: A sealing gasket made of a resilient rubber material or rubber-like material. The sealing gasket is formed as a rotationally symmetric body with a substantially constant cross-sectional profile. The cross-sectional profile includes: a first sealing part located furthest away from a center of rotation of the body and a second sealing part located radially inside the first sealing part, as viewed in the radial direction. An open space is defined by the first and second sealing parts. The second sealing part essentially curves through an angle away from the center of rotation. A seed housing can include such a seal and a seeder can include such a seed housing.

Abstract: The present document shows a separator for separating granular material, such as seed, fertilizer or pesticide, from a material-laden airflow (FI). The separator comprises a separator zone (Z) having an inlet (11) for a material-laden airflow, a material outlet (13) and an air outlet (12, 12?), and at least two separator parts (15, 15?), which extend only substantially along a material flow (FM) in the separator zone (Z) and between which is formed a separator gap (12, 12?), which is sufficiently narrow to allow air, but not the granular material, to pass through it. At the material outlet (13), the separator gap (12, 12?) is at least partially open, viewed in a direction which is substantially parallel with the material flow (FM), so that material which gets stuck in the separator gap (12, 12?) is allowed to leave this by means of displacement principally along the material flow (FM).

Abstract: The present document shows an agricultural implement comprising a device for feeding granular material, such as seed, fertilizer or pesticide. The device comprises at least two metering devices (109), a first drive device (101) for generating a pressurizing airflow (FT) for pressurization of the metering devices (109), and a central container (102), which is arranged to, via respective feed ducts (103), with the aid of a respective feed airflow (FI), feed the material to the respective metering device (109). The device also comprises a second drive device (201, 201a, 201b) for generating the said feed airflow (FI) and a merging connection (118, 118?) for merging at least a part (FL) of the said feed airflow (FI) with the pressurizing airflow (FT).

Abstract: A sow housing for piecemeal sowing of seeds. The sow housing includes a seed bin and a rotating seed element having a wall that has a plurality of through holes. Each hole is arranged to, during a first part of the revolution of the hole, retain a seed as a consequence of pressure difference between the two sides of the wall. A cover is arranged to cover each hole during a second part of the revolution of the hole.