Harrow device and harrow disc
AssigneesValentina Montenegro, Camila Montenegro, Gonzalo Montenegro
InventorMarcelo Gabriel Montenegro
Life of this patent
Estimating the term…
Abstract
A harrow device for the conditioning and leveling of sowing soils in a single step, and a disc for the harrow, which allows these processes to be carried out in the proper way, guaranteeing a better quality of subsequent sowing, and also preventing premature wear of parts, jamming of materials, and/or emergency stops, and which, in turn, is constituted and built in a simple way, in order to reduce costs and facilitate both its realization and its replacement.
Claims7
A harrow device for the conditioning and leveling of sowing soils, the harrow device comprising:
- a frame which has a front pulling part;
- wheels mounted on said frame;
- and
- a plurality of harrow means arranged below the frame,
- wherein
- each harrow means of the plurality of harrow means comprises:
- at least a plurality of discs removably connected to each other by means of connecting members comprising at least one base plate removably fixed to each of said discs and joint means fixed to the base plate, such that the joint means of two adjacent discs are articulately connected to each other;
- and
- at least one tensioning means mounted on said frame and connected to said harrow means,
- said base plate comprises a central disc-shaped plate that has at least one support and wedge area against the disc, said support and wedge area being in turn provided with respective holes that are through and match with fixing holes of the disc, and
- said joint means comprise a pair of forks arranged on each side of the central disc-shaped plate, and the forks extend transversely to the central disc-shaped plate and axially with respect to each other, and at least one crosshead is arranged between each pair of opposing forks of adjacent discs, jointly defining a mechanical link between the disc-base plate assemblies and forming a line of harrow discs that rotate with respect to the frame.
A harrow device for the conditioning and leveling of sowing soils comprising a frame which has a front pulling part, wheels mounted on said frame and a plurality of harrow means arranged below the frame, wherein each of said harrow means comprises:
- at least a plurality of discs removably connected to each other by means of connecting members comprising at least one base plate removably fixed to each of said discs and joint means fixed to the base plate, such that the joint means of two adjacent discs are articulately connected to each other, and at least one tensioning means mounted on said frame and connected to said harrow means, wherein said tensioning means comprises at least one support arm having a proximal end mounted on said frame and a distal end connected to at least one pivot plate;
- wherein the at least pivot plate comprises:
- a proximal end provided with a fixing plate on which at least one selector cam is pivotally fixed;
- and
- a distal end connected to a pivot arm having a lower end operatively connected to a bearing housing through a shaft, and an upper end to which a spring is connected,
- wherein said selector cam is connected inferiorly to a tension damper which is mounted between said fixing plate of the pivot plate and said pivot arm, while superiorly, said selector cam is selectively positioned between a plurality of tension selector holes made on a tension selector plate which in turn is connected to said spring.
A harrow disc for a harrow device that comprises at least a plurality of said discs removably connected to each other by means of connecting members comprising at least one base plate removably fixed to each of said discs and joint means fixed to the base plate, such that the joint means of two adjacent discs are articulately connected to each other, the harrow disc comprising:
- at least one disc plate provided with a plurality of fixing holes;
- said joint means comprising at least one pair of half-links, where at least one of said half-links is arranged on each side of the disc plate, each of said half-links having one of said at least one base plate that is in operative contact with a face of said plate disc and is provided with holes that coincide in alignment with respective holes of the plurality of fixing holes of the disc plate;
- at least one pair of counterweight plates, where at least one of said counterweight plates is provided on each side of the disc plate, each of said counterweight plates having holes that are aligned with respective holes of the fixing holes of said disc plate;
- and
- fixing elements that pass through the holes made in the counterweight plates, the base plates of the half-links and the disc plate, operatively fixing them to each other in a removable manner.
Dependencies are inferred from the claim text.