PLOWSHARE PARTICULARLY FOR SEEDING AND EVENTUAL MANURING IN SOIL ON CONTINUOUS LINE

Abstract: Plowshare particularly for seeding and eventual manuring in soil on continuous line, of the type involving two equal and symmetrical opposite convergent wings with an apex having a substantially "V" shaped plan, characterised in that: said two wings are shaped like airplane wings having a "substantially V" shaped plan (31); and their ends are turned upwards (32), in order to allow that: said plowshare may be pulled penetrating at a certain depth into the soil; cutting the soil at said depth and making it slide above said wings (31); and said flaps (32), force said soil to pour back in the obtained furrow covering it; applying at least one seed distribution device in the free area of the "V" shaped inside apex being possible.

Description: DESCRIPTION PLOWSHARE PARTICULARLY FOR SEEDING AND EVENTUAL MANURING IN SOIL ON CONTINUOUS LINE Technical Field The present invention has for object a plowshare particularly for seeding and eventual manuring in soil on continuous line. Background Art In prior art different types of plowshares and apparatuses for seeding and eventual manuring in soil on continuous line are known. Which substantially consist in having: - means for the opening of furrows in the soil; - means for laying the seed in said furrow; - means for closing the furrow over the seed; - eventual means for spreading the fertiliser along said furrow. The present solutions adopt different devices, such as: - a plowshare for opening said furrow followed by the seed spreader and a tool for closing the furrow; - a spreading tool which also acts as a plowshare by directly penetrating into the soil. The prior art drawbacks substantially consist of that the seed taking root is not sure. In particular the first solution is that which gives the best performances, nevertheless even this does not ensure the best taking root yield. The reason for which all the existing solutions do not ensure a maximum taking root, substantially derives from that they are not able to ensure a suitable seed covering in the many operational conditions. Purpose of the present invention A purpose of the present invention is that of obviating the aforementioned drawbacks and ensuring that the seed falls on the already tilled and thus suitably covered soft soil. Essence of the invention The problem is solved as claimed by a plowshare particularly for seeding and eventual manuring in soil on continuous line, of the type involving two equal and symmetrical opposite convergent wings with an apex having a substantially "V" shaped plan, characterised in that: - said two wings are shaped like airplane wings having a "substantially V" shaped plan and; - their ends are turned upwards, in order to allow that: - said plowshare may be pulled penetrating at a certain depth into the soil; - cutting the soil at said depth and making it slide above said wings and - said flaps, force said soil to pour back in the obtained furrow covering it; - applying at least one seed distribution device in the free area of the "V" shaped inside apex being possible. Advantages of the new solution Thus the advantage of sowing the seed in a tilled soil both over and under the seed with a more certain germination is obtained. Preferred variations Advantageously the front edge of said wings (31 1 ) lays on a substantially horizontal line, so that a soil layer having a suitable thickness may be easily removed. As much advantageously the rear edge of said wings is: - substantially higher than the front edge; - substantially horizontal or slightly tilted outwards and downwards. Thus a better efficacy in soil mixing and seed covering is obtained. As much advantageously said flaps tighten backwards tending to slightly heap the removed soil layer which falls back on the same furrow. Description of at least one form of invention embodiment These and other advantages will result from the following description of an embodiment preferred solution, with the aid of the enclosed drawings, whose execution details are not to be considered as limitative but are only given as examples. Figure 1 is a plan view of the seeding plowshare. Figure 2 is a front view of the same plowshare. Fig. 3 is a side view of the same plowshare. Figure 4 is a view of the plowshare assembling system in the seeding apparatus . According to the figures it may clearly be noticed that the innovation concerns a plowshare particularly for the seeding and eventual manuring in soil on continuous line, of the type involving two equal and symmetrical opposite convergent wings with an apex having a substantially "V" shaped plan, characterised in that: - said two wings are shaped like airplane wings having a "substantially V" shape top wiew (31) and; - their ends are turned upwards to realize a couple of flaps (32), in order to allow that: - said plowshare may be pulled penetrating at a certain depth into the soil; - cutting the soil at said depth and making it slide above said wings (31 ) an d - said flaps (32), force said soil to pour back in the obtained furrow covering it; - applying at least one seed distribution device in the free area of the "V" shaped inside apex being possible. The front edge of said wings (31 1 ) lays on a substantially horizontal line The rear edge of said wings (312) is: - substantially higher than the front edge (31 1 ); - substantially horizontal or slightly tilted outwards and downwards. Said flaps tighten backwards tending to slightly heap the removed soil layer which falls back on the same furrow. The seeding apparatus includes the plowshare (3) and within said plowshare internal rear apex (30) there is a seed spreader (5). Before the front apex of each said plowshare (33) there is a plowshare for the furrow opening or soil breaking ( 1), substantially at a depth greater than the front edge (33-31 1 ) of said seeding plowshare (3). Before the front apex of said plowshare (33) and after said opening plowshare (1) there is a seed or fertiliser spreader (5). Said seeding plowshare (3) is connected by means of arms (42) to its joining central part (34) in a dismountable way, to a support structure (4), to which also said front opening plowshare ( 1 ) is connected in a dismountable way. Obviously said two plowshares: the opening or breaking one, and the seeding one (3) may be assembled all in one yet not changing the invention essence.

Claims: Claims 1. Plowshare particularly for the seeding and eventual manuring in soil on continuous line, of the type involving two equal and symmetrical opposite convergent wings with an apex having a substantially "V" shaped plan, characterised in that: - said two wings are shaped like airplane wings having a "substantially V" shape top view (31 ) and; - their ends are turned upwards to relize a couple of flaps (32), in order to allow that: - said plowshare may be pulled penetrating at a certain depth into the soil; - cutting the soil at said depth and making it slide above said wings (31) an d - said flaps (32), force said soil to pour back in the obtained furrow covering it; - applying at least one seed distribution device in the free area of the "V" shaped inside apex being possible. 2. Plowshare according to claim 1 , characterised in that the front edge of said wings (31 1 ) lays on a substantially horizontal line. 3. Plowshare according to claim 1 , characterised in that the rear edge of said wings (312) is: - substantially higher than the front edge (31 1 ); - substantially horizontal or slightly tilted outwards and downwards. 4. Plowshare according to claim 1 , characterised in that said flaps (32) tighten backwards tending to slightly heap the removed soil layer which falls back on the same furrow. 5. Seeding apparatus including at least a plowshare according to any of the previous claims. 6. Seeding apparatus including a plowshare according to any of the claims 1 -4, characterised in that it includes within each said plowshare internal rear apex (30) at least a seed spreader (5). 7. Seeding apparatus including a plowshare according to any of the claims 1 -4, characterised in that it includes before the front apex of each said plowshare (33) at least a seed or fertiliser spreader (5). 8. Seeding apparatus including a plowshare according to any of the claims 1 -4, characterised in that it includes before the front apex of each said plowshare (33) at least a plowshare for the furrow opening or soil breaking (1 ), substantially at a depth greater than the front edge (33-31 1) of said seeding plowshare (3). 9. Seeding apparatus including an opening plowshare according to the previous claim, characterised in that before the front apex of said seeding plowshare (33) and after said opening plowshare (1 ) there is a seed or fertiliser spreader (5). 10. Seeding apparatus including an opening plowshare (1 ) and a seeding plowshare (3) according to the previous claims, characterised in that said seeding plowshare (3) is connected by means of arms (42) to its joining central part (34) in a dismountable way, to a support structure (4), to which also said front opening plowshare ( 1 ) is connected in a dismountable way. 1 1. Seeding apparatus including an opening plowshare ( 1 ) and a seeding plowshare (3) according to the previous claims, characterised in that they are all assembled in one. 12. Seeder endowed with at least a seeding apparatus and plowshare according to any of the previous claims.

Inventors: COLLOVATI MAURO, COLLOVATI, MAURO
Applicants: COLLOVATI MAURO, COLLOVATI, MAURO
Application year: 1999
Main classification: A01B35
IPC codes: A01B35, A01B49, A01C5