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US 4,899,672 AGranted
Method and arrangement for sowing individual seeds in a furrow made by a ploughshare
OwnerKarl-Heinz Paulinventor
Life of this patent
Estimating the term…
Abstract
In the case of a method for sowing separate seeds in a furrow made by a ploughshare, the separate seeds run in a guide-device, are trapped in the vicinity of the ploughshare, are stored intermediately for a short time and are then released into the furrow. Upon being trapped, the individual seeds are stored intermediately spot-wise in relation to an axis corresponding to the direction of release and under a centering action. The individual seeds are accelerated, by a brief fluid-pulse in the direction of release, from the stationary intermediate storage position and are released into the furrow.
Claims9
A sowing arrangement comprising:
- seed separating means;
- guide means and a ploughshare;
- means for trapping seeds moving in said guide means and for depositing the seeds in a furrow made by the ploughshare in the vicinity of an end of said guide means;
- said trapping means being set up for trapping and releasing the individual seeds and comprising;
- an axial substantially closed housing for centering the individual seeds in relation to an axis of the housing according to a predetermined direction of release;
- said housing having a funnel-shaped part adapted to move into a first position in which the individual seeds are trapped and retained;
- said funnel-shaped part being adapted to move into a second position for releasing the individual seeds, and a fluid source driven pulsatingly and connected to said housing for releasing the individual seeds into the furrow at constant sowing spacing;
- said funnel-shaped part of said housing being actuated by said fluid source in both said positions;
- said housing for trapping and releasing the individual seeds having a substantially cylindrical shape with a cylinder axis, said housing being aligned with said cylinder axis in the direction of release;
- said housing having laterally an aperture allowing seed to pass out of said guide means;
- said fluid source being connected to an upper end of said housing, said funnel-shaped part being arranged in a lower part of said housing;
- said funnel-shaped part comprising wall parts mounted to yield resiliently under pressure;
- said funnel-shaped wall parts comprising pyramidally-arranged metal elements and return spring means.
10 more elements
A sowing arrangement comprising:
- seed separating means;
- guide means and a ploughshare;
- means for trapping seeds moving in said guide means and for depositing the seeds in a furrow made by the ploughshare in the vicinity of an end of said guide means;
- said trapping means being set up for trapping and releasing the individual seeds and comprising:
- an axial substantially closed housing for centering the individual seeds in relation to an axis of the housing according to a predetermined direction of release;
- said housing having a funnel-shaped part adapted to move into a first position in which the individual seeds are trapped and retained;
- said funnel-shaped part being adapted to move into a second position for releasing the individual seeds, and a fluid source driven pulsatingly and connected to said housing for releasing the individual seeds into the furrow at constant sowing spacing;
- said funnel-shaped part of said housing being actuated by said fluid source in both said positions;
- said housing for trapping and releasing the individual seeds having a substantially cylindrical shape with a cylinder axis, said housing being aligned with said cylinder axis in the direction of release;
- said housing having laterally an aperture allowing seeds to pass out of said guide means;
- said fluid source being connected to an upper end of said housing, said funnel-shaped part being arranged in a lower part of said housing;
- said funnel-shaped part comprising wall parts mounted to yield resiliently under pressure;
- said funnel-shaped parts comprising a wire member and return spring means.
10 more elements
A sowing arrangement comprising:
- seed separating means;
- guide means and a ploughshare;
- means for trapping seeds moving in said guide means and for depositing the seeds in a furrow made by the ploughshare in the vicinity of an end of said guide means;
- said trapping means being set up for trapping and releasing the individual seeds and comprising:
- an axial substantially closed housing for centering the individual seeds in relation to an axis of the housing according to a predetermined direction of release;
- said housing having a funnel-shaped part adapted to move into a first position in which the individual seeds are trapped and retained;
- said funnel-shaped part being adapted to move into a second position for releasing the individual seeds, and a fluid source driven pulsatingly and connected to said housing for releasing the individual seeds into the furrow at constant sowing spacing;
- said funnel-shaped part of said housing being actuated by said fluid source in both said positions;
- said housing for trapping and releasing the individual seeds having a substantially cylindrical shape with a cylinder axis, said housing being aligned with said cylinder axis in the direction of release;
- said housing having laterally an aperture allowing seeds to pass out of said guide means;
- said fluid source being connected to an upper end of said housing, said funnel-shaped part being arranged in a lower part of said housing;
- said funnel-shaped part comprising wall parts mounted to yield resiliently under pressure;
- said funnel-shape parts comprising further fabric elements and return spring means.
10 more elements
A sowing arrangement comprising:
- seed separating means;
- guide means and a ploughshare;
- means for trapping seeds moving in said guide means and for depositing the seeds in a furrow made by the ploughshare in the vicinity of an end of said guide means;
- said trapping means being set up for trapping and releasing the individual seeds and comprising:
- an axial substantially closed housing for centering the individual seeds in relation to an axis of the housing according to a predetermined direction of release;
- said housing having a funnel-shaped part adapted to move into a first position in which the individual seeds are trapped and retained;
- said funnel-shaped part being adapted to move into a second position for releasing the individual seeds;
- and a fluid source driven pulsatingly and connected to said housing for releasing the individual seeds into the furrow at constant sowing spacing;
- said funnel-shaped part being actuated by said fluid source in said two positions;
- said housing having a substantially cylindrical shape with a cylinder axis, said housing being aligned with said cylinder axis in direction of release;
- said housing having laterally an aperture allowing seed to pass out of said guide means;
- said fluid source being connected to an upper end of said housing;
- said funnel-shaped part being arranged in a lower part of said housing;
- said housing having a solenoid valve for producing short term fluid pulses in vicinity of a connection of said fluid source;
- said funnel-shaped part comprising wall parts mounted to yield resiliently under pressure;
- said funnel-shaped wall parts comprising further pyramidally arranged metal elements and return spring means;
- said funnel-shaped wall parts being arranged replaceably on said housing;
- said housing having a constriction in vicinity of said funnel-shaped part.
15 more elements
Dependencies are inferred from the claim text.