WO2014167523A1

WO2014167523A1 - Draining hoes for rotating ploughs

Info

Publication number: WO2014167523A1
Application number: PCT/IB2014/060616
Authority: WO
Inventors: Marco Bocci
Original assignee: Zappettificio Alto Lazio Di Bocci Marco
Priority date: 2013-04-10
Filing date: 2014-04-10
Publication date: 2014-10-16
Also published as: ITFI20130080A1

Abstract

There are described draining hoes for rotating ploughs wherein the part (14) equipped with the blade has an end (15) perpendicular thereto and essentially parallel to the part (11) that carries the means (12) for fixing the hoe to the plough.

Description

DRAINING HOES FOR ROTATING PLOUGHS

Field of the invention

The present invention relates to the field of devices for use in agriculture, in particular to devices for rotating ploughs.

State of the art

As is known, the preservation, fertility and productivity of a soil necessarily depend- on its preparation before starting any farming activity.

Preparation is intended here as turning over and breaking down the soil, which is carried out before proceeding with other activities, such as sowing.

Rotary ploughs are normally used to prepare the soil as indicated above; these machines are equipped with rotating discs or cylinders, mounted on which are a plurality of hoes of various shapes and sizes, which rotate integral with the disc or cylinder to which they are attached, enter the soil, break it up and turn it.

Said hoes consist of a shaped tool essentially formed of two separate parts, one straight and the other straight (and approximately perpendicular to said first part) or curved.

Said first part allows the hoe to be connected to the disc or cylinder by means of appropriate engagement means, while the other (whether straight or curved) performs the actual tilling action, as (once the hoe has been attached to the plough) it is in a position essentially parallel to the soil to be prepared so that after rotation it can enter the soil, break it up and turn it; this part has a flattened surface portion on the edge formed by a cutting blade that sinks into the soil.

Therefore, preparation essentially consists of cutting the soil carried out by the aforesaid part of the tool equipped with the blade, which performs the tilling action rotating at high speed, digging, turning over and breaking up the soil into small clumps which are mixed and stratified immediately behind the tool; the preparation depth generally does not exceed 20 cm.

Notwithstanding the undoubted advantages deriving from the use of rotating ploughs equipped with hoes as described above, these have the problem that during their action, parallel to the soil, they compact the soil in the layer immediately below the layer broken up and turned, creating a layer that becomes more impermeable to water the more times the soil is tilled with the aforesaid rotating ploughs equipped with normal hoes. This results in the stagnation of water, which will have very negative consequences on the life of existing crops, and on preparation of the soil to receive new crops. The most serious damage caused is drought in the subsoil: in fact the hardpan layer created immediately below the tilled and turned soil prevents water from draining in depth, to such an extent that the roots of existing crops no longer benefit from normal water reserves in the subsoil and those of new crops find it hard to penetrate in depth.

Therefore, the advantage of being able to use hoes for rotating ploughs that propose a remedy to the aforesaid problem is evident.

Brief description of the figures

The accompanying Fig. 1 schematically shows an embodiment of a hoe for rotating ploughs according to the invention.

The accompanying Fig. 2 schematically shows a further embodiment of a hoe for rotating ploughs according to the invention.

Summary of the invention

There are described hoes for rotating ploughs wherein the part equipped with the blade has an end essentially parallel to the part that allows fixing of the hoe to the plough.

Detailed description of the invention

The present invention allows the aforesaid problem to be solved by means of a hoe, as shown in the figure, wherein the part equipped with the blade (which, as indicated above, performs the actual tilling action) has an end approximately perpendicular thereto and essentially parallel to the arm for fixing the hoe to the plough.

As can be seen in the accompanying figure, the hoe according to the invention comprises, just as conventional hoes, two distinct parts:

- a first part 11 , substantially straight and equipped with means for connection to the disc or cylinder of the rotating plough, said connection means being, for example, simple through holes 12 adapted to allow fixing to the disc or cylinder of the rotating plough by means of screws, bolts, pins, rivets, etc.; - a second part 13, curved (see Fig. 1 ) or straight, and approximately perpendicular to said first part 11 (see Fig. 2).

Said second part 13 has the cutting blade 14 that performs the tilling action and an end 15, substantially parallel to said first part 11 , adapted to cut through the surface of the soil.

The hoe according to the invention therefore differs from normal prior art hoes due to the presence of the end 15 (also equipped with the blade 14) which, when the hoe according to the invention is arranged in the operating position, will be in a position essentially perpendicular to the soil so that when the part 13, by means of the blade 14, performs its normal action of digging and turning over the soil (just as conventional hoes), said end 15 can sink in an essentially perpendicular direction into the soil, breaking the hardpan layer created by the action of the blade 14 and greatly facilitating deep penetration of water.

In this way, drainage of the soil is protected and the aforesaid problems are eliminated.

The other great advantage of the invention is that, during rotation of the rotating plough, the end 15 naturally impacts on the soil before the blade 14, helping this latter to sink into the soil more rapidly and effortlessly, even when the soil is hard. This results in less driving strain on the ploughing machine and, consequently, on the tractor to which it is attached.

The hoes according to the invention will obviously be made of the same materials normally used to produce these tools, normally by moulding or forging, and will be equipped with analogous means for engagement with the rotating discs or cylinders of the rotating plough as described above.

Claims

1. Hoes for rotating ploughs comprising two separate parts:

- a first, essentially straight part (11 );

- a second curved or straight part (13) approximately perpendicular to said first part (11 );

characterized in that said part (13) has an end (15) essentially perpendicular to said part (13) and essentially parallel to said part (11 ).

2. A hoe according to claim 1 , wherein said part (11 ) has engagement means allowing to connect it to the disc or cylinder of the rotating plough.

3. A hoe according to claim 2, wherein said engagement means consist of through holes (12) allowing to fix it to the discs or cylinders of the plough by means of screws, bolts, pins or rivets.

4. A hoe according to claims 1-3, wherein said part (13) and said end (15) have a cutting blade (14) on their edge that sinks into the soil.