Abstract: An agricultural machine comprising a seed metering device to meter seeds for the distribution to the ground across which the agricultural machine moves. The seed metering device embraces a wall that is arranged to rotate. The seed metering device is furthermore arranged to communicate with a pressure actuating appliance for providing a wall pressure difference between a seed reception side, high-pressure side, of the wall and a side, low-pressure side, of the wall that is opposite the seed reception side. The wall is provided with a plurality of through retention openings for the reception on the seed reception side of the wall, by means of the wall pressure difference, of seeds at the retention openings. Then, the seeds are transported, by means of the rotation of the wall, through a wall transportation distance whereupon they are released from the wall.

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 means is arranged to cover each hole during a second part of the revolution of the hole.

Abstract: Agricultural machine embracing at least one drilling unit including a support device as well as a seed metering device. The drilling unit is movably connected with a structural member embraced by the agricultural machine. The seed metering device is fixedly connected with the support device of the drilling unit and the seed metering device includes a chamber for seeds arranged to be supplied with a positive pressure where the seed metering element constitutes a wall limiting the chamber and in which holes or recesses are arranged. The holes/recesses connect the chamber with the surroundings, with the purpose of, by the pressure difference developed hereby, attaching and transporting seeds at said holes/recesses of the seed metering element. A seed metering line has an inlet in the chamber, with the purpose of, by said positive pressure in the chamber, creating an air flow for the transportation of the seeds from the chamber through the seed metering line to a drill furrow.

Abstract: An apparatus for discrete distribution of granules, such as seed, fertilizer or the like includes a path forming device having an inlet (6) adapted to be associated with a granules container of an agricultural machine, and an outlet (7) adapted to be associated with a coulter of the agricultural machine. The path (25) is defined by at least one wall extending on either side of and along at least a part of the extension of the path, wherein the path is formed about a substantially vertical axis. Also included is an agricultural machine (10) provided with such an apparatus.

Abstract: An apparatus for discrete distribution of granules, such as seed, fertilizer or the like includes a path forming device having an inlet (6) adapted to be associated with a granules container of an agricultural machine, and an outlet (7) adapted to be associated with a coulter of the agricultural machine. The path (25) is defined by at least one wall extending on either side of and along at least a part of the extension of the path, wherein the path is formed about a substantially vertical axis. Also included is an agricultural machine (10) provided with such an apparatus.

Abstract: A towing device for an agricultural apparatus (2), includes at least one wheel (6) which is arranged in a front area of the agricultural apparatus (2) and can rotate about an essentially horizontal wheel axle (8); a link arm (10) which is connected to the wheel axle (8) and is coupled in an articulated manner to a frame (4) arranged on the agricultural apparatus 92) about an essentially vertical first axis (12); and a draw bar (14) which can be coupled to a towing vehicle. A control member (22) is arranged between the draw bar (14) and the frame (4) in order to control the pivoting of the link arm (10) about the first axis (12) as the towing vehicle turns, so that the agricultural apparatus (2) turns at least less than the towing vehicle.