Patent ID: 6945182

Claim:
A midrow levelling attachment for a seeder, the seeder comprising: a seeder frame arranged to be transported across a field to be seeded in a direction of travel; a plurality of shanks mounted on the seeder frame at positions thereon spaced both transversely to and along the direction of travel to provide an array of shanks at a required spacing across the direction of travel for seeding in the field at the required spacing; each shank having a furrow forming element mounted thereon for engaging the ground in a furrow forming action such that a furrow is formed along the line of the shank and soil is displaced from the ground to each side of the line of the shank; and each shank having a seed supply element for discharging seeds in a row in the furrow behind the furrow forming element; the midrow levelling attachment comprising: a plurality of levelling rollers each having two side edges and a peripheral surface between the side edges for rolling over the ground; and mounting elements for mounting the levelling rollers on the seeder, the mounting elements being arranged such that each roller has the peripheral surface thereof located at a position aligned with a location on the ground between a respective pair of the shanks and each roller is located rearwardly of the respective pair of shanks for engaging the ground between the furrows formed by the furrow forming element of the respective pair of shanks; the peripheral surface of each levelling roller being shaped, when considered in cross-section and in engagement with the ground, to provide a central depending apex between the two side edges and two side portions one each side of the apex which are inclined from the apex upwardly and outward to the respective side edge, such that as the peripheral surface rolls over the ground between the furrows the side portions tend to push the soil back into the furrows.