A cultivator for cultivating a field can have a frame with a tow assembly so that the cultivator can be towed by a tractor. A cultivating assembly can be provided pivotally attached to the rear of the frame. The cultivating assembly can have a plurality of discs that engage and penetrate the soil beneath the cultivating assembly. The cultivating assembly can have a center section pivotally connected at the to the rear end of the frame, a first wing section pivotally connected to one side of the center section, a second wing pivotally connected the other side of center section where all the sections have discs connected to them. A pair of ground wheels can be provided connected to the center section so that the ground wheels are positioned in front of the cultivating assembly when it is being used to cultivate a field.

A ground engaging agricultural blade, coulter, or disc having a central opening adapted to be attached to an implement for rotation about a substantially horizontal axis of rotation; the coulter or disc have an outer periphery; and plurality of step plane notches disposed in the outer periphery. The blade can be used with a hub disposed around the central opening or a spacer spool on a shaft extending through the central openings of adjacent blades, the spacer spools extending radially outwardly by a distance.

A multi-lobed wheel adapted to be mounted to an agricultural platform for traversal of an agricultural field generally traverse to adjacent rows of planted crops without crushing the individual plants. The multi-lobed wheel having a wheel hub including a central axis on which the multi-lobed wheel is configured to rotate and a plurality of spaced apart lobes defining an outer perimeter configured to make ground engaging contact with the agricultural field, the outer perimeter including structure presenting a plurality of gaps between the plurality of spaced apart lobes, the gaps shaped and sized to provide sufficient clearance for individual plants within a planted crop row so as to enable the multi-lobed wheel to pass over a planted crop row without crushing the individual plants therein.

A gang assembly of a tillage implement has disc blades suspended from a support bar with a disc hanger assembly. A disc adjustment mechanism is configured to pivotably attach the disc hanger assembly for each of the plurality of disc blades to the support bar. The disc adjustment mechanism includes a pivot mount for each of the plurality of disc blades. Each pivot mount has a pivot configured to pivot the pivot mount, a first arm connected to the disc hanger assembly, and a crank arm. A shuttle is attached to the crank arms and causes each pivot mount to pivot and adjust the disc angle of the associated disc blade. The disc hanger assembly is configured to position the disc blade such that a vertical center line of the disc blade extends through the pivot point of the pivot.

The invention relates to a soil-working device having an overload protection means, in the case of which overload protection means rebound energy is reduced after the soil-working device returns from an overload position to the working position.

The document discloses a disc tool (1) for breaking up field residues, comprising a central hub portion (10), which is designed for mounting the disc in a tool holder in order to make the disc rotatable about a rotation axis (Ar), a cultivating portion (11), which is located radially outside of and adjoins the hub portion (10), and a plurality of substantially straight cutting edges (E1, E2) which are located at the periphery of the disc tool. The cultivating portion (11) has a plurality of undulations (111, 112) which, with an axial extent decreasing toward the inside, run from the cutting edges (E1, E2) to the hub portion (10). The cutting edge (LE1, E2) is designed such that 90-98% of a track formed by the cutting edge consists of straight track portions.

The document further discloses an agricultural implement with such disc tools, the use of such an agricultural implement, and a method for manufacturing such a disc tool.

A disk blade has an outer perimeter, a first side wall, a second side wall, and a central hub. A plurality of fingers extend laterally at an angle from said first side wall. The fingers preferably comprise metal round bars curved to form part of an elliptical geometry inserted at a perpendicular angle to a vertical angle of said disk blade. The bars are arranged at locations equidistant around said disk blade and are disposed at a depth x from said outer perimeter of said disk blade. Preferably, the depth x is at least one (1) inch.

A disc device for an agricultural machine includes at least one disc implement, an arm, at one end of which the implement is journalled in bearings at an axle, and a bearing, which is arranged at the opposite end of the arm and is adapted to be fastened at a transverse beam on the frame of the agricultural machine. The disc device includes in the circumference direction of the disc implement mainly equally distributed, freestanding, out towards the periphery radially extending, protruding parts, wherein each protruding part has an outer edge, which extends in the range 15-75 degrees in relation to the plane of the disc implement.

A multi-lobed wheel adapted to be mounted to an agricultural platform for traversal of an agricultural field generally traverse to adjacent rows of planted crops without crushing the individual plants. The multi-lobed wheel having a wheel hub including a central axis on which the multi-lobed wheel is configured to rotate and a plurality of spaced apart lobes defining an outer perimeter configured to make ground engaging contact with the agricultural field, the outer perimeter including structure presenting a plurality of gaps between the plurality of spaced apart lobes, the gaps shaped and sized to provide sufficient clearance for individual plants within a planted crop row so as to enable the multi-lobed wheel to pass over a planted crop row without crushing the individual plants therein.

A disc conditioner to work soil in a forward direction including a main support structure, a secondary support structure that protrudes from the main support structure in the forward direction, a main disc assembly affixed to the main support structure, and a secondary disc assembly that is affixed to the secondary support structure and protrudes from the main disc assembly in the forward direction. The secondary disc assembly generates an oscillating soil and residue flow along a central axis of the disc conditioner that levels the soil.