Abstract: A seed furrow opener comprises a seed furrow opener arm, and a pair of seed discs rotatively connected to the seed furrow opener arm via at least one shaft. Geometrical rotational axes of the respective seed discs are non-parallel to each other, making a mutual distance between the peripheries of the seed discs non-constant. The seed furrow opener arm has a continuous cut-out for mounting the shaft, a slot extending from the cut-out to the periphery of the seed furrow opener arm, and a clamping device arranged to compress the slot and clamp the shaft.

Abstract: The document discloses a seed furrow opener (21), comprising a furrow opener arm (210), and a pair of cooperating seed discs (216a, 216b), whose rotational axes (Ra, Rb) are non-parallel to each other. At least one of the seed discs (216a, 216b) is axially slidably mounted on a shaft (212a, 212b), whose proximal end is attached to the seed furrow opener arm (210). A spring (213a, 213b) is arranged to bias the seed disc (216a, 216b) outwardly from the seed furrow opener arm (210). The spring (213a, 213b) biases the seed disc (216a, 216b) against an adjustable abutment (215a, 215b). There is also disclosed a row unit comprising such a seed furrow opener, an agricultural implement comprising a plurality of such row units and a method for operating a seed furrow opener.

Abstract: This document discloses a gauge wheel device (22) for maintaining working depth of a row unit (2) included in an agricultural implement, comprising a gauge wheel arm (220) which, at a distal portion thereof, carries a gauge wheel (221) which is rotatable about a gauge wheel shaft (2201, 220T). An effective length of the carrier arm (220) is variable. The document discloses a row unit comprising such a gauge wheel device, an agricultural implement comprising a plurality of such row units and a method for operating a gauge wheel assembly.

Abstract: A row unit for an agricultural implement, comprising a frame and a seed furrow-opener, wherein the seed furrow-opener comprises a pair of seed discs rotatably connected to the frame via at least one axle unit, wherein each of the seed discs has a respective geometric axis of rotation, and wherein the axes of rotation are non-parallel, so that a mutual spacing between the peripheries of the seed discs is non-constant. The axle unit is pivotable relative to the frame, so that the orientation of at least one of the axes of rotation is adjustable. An agricultural implement comprises at least one such row unit and a method of adjusting a row unit.

Abstract: This document shows a seed furrow opener, comprising a seed furrow opener arm (22), and a pair of seed discs (25) rotatably connected to the seed furrow opener arm (22) via at least one shaft unit (24). Each of the seed discs (25) has a respective geometric rotational axis. The rotational axes are non-parallel to each other, so that a mutual distance between the peripheries of the seed discs (25) is non-constant. The seed furrow opener has a continuous cut-out (221) formed in the seed furrow opener arm (22) for mounting the shaft unit (24), a slot (2221, 2222) extending from the cut-out (221) to a periphery (220) of the seed furrow opener arm (22), and a clamping device (224a, 224b; 225a, 225b), arranged to compress the slot (2221, 2222), so that the shaft unit (24) is clamped in the cut-out (221).

Abstract: This document discloses a gauge wheel device (22) for maintaining working depth of a row unit (2) included in an agricultural implement, comprising a gauge wheel arm (220) which, at a distal portion thereof, carries a gauge wheel (221) which is rotatable about a gauge wheel shaft (2201, 220T). An effective length of the carrier arm (220) is variable. The document discloses a row unit comprising such a gauge wheel device, an agricultural implement comprising a plurality of such row units and a method for operating a gauge wheel assembly.

Abstract: The document discloses a seed furrow opener (21), comprising a furrow opener arm (210), and a pair of cooperating seed discs (216a, 216b), whose rotational axes (Ra, Rb) are non-parallel to each other. At least one of the seed discs (216a, 216b) is axially slidably mounted on a shaft (212a, 212b), whose proximal end is attached to the seed furrow opener arm (210). A spring (213a, 213b) is arranged to bias the seed disc (216a, 216b) outwardly from the seed furrow opener arm (210). The spring (213a, 213b) biases the seed disc (216a, 216b) against an adjustable abutment (215a, 215b). There is also disclosed a row unit comprising such a seed furrow opener, an agricultural implement comprising a plurality of such row units and a method for operating a seed furrow opener.

Abstract: This document discloses a row unit (1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h) for an agricultural implement (2), comprising a frame (11, 132) and a seed furrow-opener (13a, 13b), wherein the seed furrow-opener comprises a pair of seed discs (131a, 131b) rotatably connected to the frame via at least one axle unit (133), wherein each of the seed discs has a respective geometric axis of rotation (Ra, Rb), and wherein the axes of rotation are non-parallel, so that a mutual spacing between the peripheries of the seed discs (131a, 131b) is non-constant. The axle unit (133) is pivotable relative to the frame (11), so that the orientation of at least one of the axes of rotation is adjustable. The document also discloses an agricultural implement comprising at least one such row unit and a method of adjusting a row unit.

Abstract: This document discloses a press wheel (161) for pick-up and/or compaction of material being fed to the ground by an agricultural implement (2). The press wheel comprises a centrally positioned hub (1611), a ground-bearing surface (1612) located at a radial distance from the hub, and a plurality of spokes (1613) extending between the hub and the ground-bearing surface. The extension (De) of each spoke between the hub and the ground-bearing surface is non-parallel to a radial direction (Rh) starting from a point at which the spoke is connected to the hub. It also relates to a row unit comprising such a press wheel and an agricultural implement comprising a number of such row units and a method of setting the hardness of a press wheel.

Abstract: A joint device of an agricultural machine has at least one tool-bearing beam (2a-c, 3a-c) for soil tillage tools (4, 5, 38, 39), such as seed coulters and cultivator tines, whereby a portion (10) of the beam end, at least on one side of the machine, is detachably fastened by means of a bolt/nut connection (13, 18, 23) arranged within the tool-bearing beam. A threaded body (18, 50) in the bolt/nut connection is fixed, preferably plug welded, in the main part of the beam (2a-c, 3a-c).

Abstract: The invention refers to a joint device at an agricultural machine with at least one tool-bearing beam (2a-c, 3a-c) for soil tillage tools (4, 5, 38, 39), such as seed coulters and cultivator tines, whereby a portion (10) of the beam end, at least on one side of the machine, is detachably fastened by means of a bolt/nut connection (13, 18, 23) arranged within said tool-bearing beam. A threaded body (18, 50) in the bolt/nut connection is fixed, preferably plug welded, in the main part of the beam (2a-c, 3a-c).