Sowing element for precision agricultural seeders and seeder including element of this kind
AssigneeMachio Gaspardo S.P.A.
InventorsGianfranco Donadon, Luigi Giovanni Bot, Bruno Miolo
Life of this patent
Estimating the term…
Abstract
Sowing element for precision agricultural seeders comprising a device for selecting the seed, of the type which is formed of a perforated disc having opposing faces that are subject to a pressure differential and a pressurisation device associated with the disc for applying the pressure differential to the faces of the disc, the pressurisation device including a pressurisation bell combined with the disc so as to pneumatically couple thereto in order to guarantee said pressure differential, wherein the bell is rotatably idle with respect to the disc.
Claims16
A device for selecting seed and included in a sowing element for precision agricultural seeders, the device comprising:
- a box-shaped body that is fixedly mounted on a frame of the sowing element and provided with an opening that is removably closed by a cover;
- a perforated disc that is rotatably supported in the box-shaped body and has opposing faces which can be subject to a pressure differential;
- a pressurisation device associated with said disc for applying said pressure differential to said faces;
- said pressurisation device including a pressurisation bell combined with said disc so as to pneumatically couple thereto in order to guarantee said pressure differential;
- wherein said bell is idly rotatably supported on said cover, is not mechanically coupled with the disc, and when the bell contacts the disc when the cover is closed on the opening of the box-shaped body, the bell is coupled to the disc for dragging.
A device for selecting seed and included in a sowing element for precision agricultural seeders, the device comprising:
- a box-shaped body that is fixedly mounted on a frame of the sowing element and provided with an opening that is removably closed by a cover;
- a seed selection disc that is supported in the box-shaped body and has opposing faces which can be subject to a pressure differential;
- a motorisation system for rotating the seed selection disc with respect to the box-shaped body;
- a pressurisation device associated with said seed selection disc for applying said pressure differential to said faces;
- said pressurisation device including a pressurisation bell combined with said seed selection disc so as to pneumatically couple thereto in order to guarantee said pressure differential;
- wherein said bell is idly rotatably supported in the device for selecting seed with respect to the seed selection disc, and wherein the motorisation system is kinematically connected to the seed selection disc, the bell being dragged by friction from the seed selection disc,
- wherein the bell is dragged without mechanical coupling betwen the bell and the seed selection disc.
A device for selecting seed and included in a sowing element for precision agricultural seeders, the device comprising:
- a box-shaped body that is fixedly mounted on a frame of the sowing element and provided with an opening that is removably closed by a cover;
- a seed selection disc that is supported in the box-shaped body and has opposing faces which can be subject to a pressure differential;
- a motorisation system for rotating the seed selection disc with respect to the box-shaped body;
- a pressurisation device associated with said seed selection disc for applying said pressure differential to said faces;
- said pressurisation device including a pressurisation bell combined with said seed selection disc so as to pneumatically couple thereto in order to guarantee said pressure differential;
- wherein said bell is idly rotatably supported in the device for selecting seed with respect to the seed selection disc and is not mechanically coupled with the disc, and
- wherein the motorisation system is kinematically connected to the seed selection disc, the bell being dragged by the seed selection disc via friction resulting from the bell contacting the seed selection disc when the bell is pneumatically coupled to the seed selection disc.
Dependencies are inferred from the claim text.