Scarifier for deep strip-tillage

Abstract

Scarifier for deep strip-tillage, that after a single trip allows the soil to be in adequate conditions for planting or sowing, operating with a great energy efficiency, contributing to an improvement in the production environment. The scarifier comprises a plurality of tillage units (a), spaced apart and located parallel to each other, and wherein each tillage unit (a) comprises a support structure (2) on which the corresponding tines (1a, 1b, 1c) are mounted, the lower ends of which are located at different heights, with the depth below the ground (d) being greater toward the rear of the scarifier. The scarifier preferably incorporates a fertilization system.

Claims

1. A scarifier having a front and a rear, wherein the scarifier is a deep strip tillage scarifier, comprising: a plurality of tillage units, spaced apart and located parallel to each other, where each tillage unit has only four tines, said four tines being connected to the scarifier via a support structure, and wherein said four tines consist of only a front tine, only a rear tine and only two intermediate tines, and wherein the two intermediate tines located between the front tine and the rear tine, have a lower end protruding deeper below the ground than a lower end of the front tine, and the rear tine has a lower end protruding deeper below the ground than the lower ends of the intermediate tines, and wherein the lower ends of the two intermediate tines are located at a same level relative to the ground, wherein the front tine and the rear tine are aligned in a centered position, whereby said front tine cuts a groove in a soil surface and is followed by the rear tine cutting in a same groove, and the two intermediate tines are located opposite to each other in a transversally off-centered position, whereby each of said two intermediate tines is arranged alone and cuts a respective groove, said two intermediate tines not being preceded or followed by any other tine when cutting the respective grooves.

2. The scarifier according to claim 1, wherein the plurality of tillage units are three tillage units which are equally spaced apart along the scarifier width.

3. The scarifier according to claim 1, wherein the tillage units are located on a general support structure, and are capable of moving transversally.

4. The scarifier according to claim 1, wherein each tillage unit incorporates front cutting organs of coulter or disk types.

5. The scarifier according to claim 1, wherein the tines can move transversally along said support structure.

Description

BRIEF DESCRIPTIONS OF THE DRAWINGS

(1) In order to make the object of the present invention more understandable, it has been illustrated with diagrammatic figures, in one of the preferred embodiments. The drawings are intended to illustrate the invention and they do not limit the invention in any way.

(2) FIG. 1 is a side view of one of the tillage units used by the soil scarifier object of the present invention.

(3) FIG. 2 is a top or plan view of the tillage unit of FIG. 1.

(4) FIG. 3 shows the soil scarifier of the present invention pulled by a tractor through its drawbar, and wherein it is displayed the spacing c between the tillage units in order to achieve strip-scarifying.

(5) FIG. 4 is a side view of the tillage unit of FIG. 1, with a fertilization system applied on each tillage tine.

(6) In all figures, same numbers and letters refer to the same elements of the invention.

DETAILED DESCRIPTION OF THE INVENTION

(7) FIGS. 1 and 2 show a preferred and nonexclusive embodiment of the present invention, where the scarifier for deep strip-tillage comprises a plurality of tillage units a, spaced apart and parallel to each other, and wherein each tillage unit a comprises a support structure 2 on which respective tines 1a, 1b, 1c are mounted, the lower ends of which are located at different heights, with the depth below the ground d being greater toward the rear of the scarifier. Preferably, the scarifier incorporates three front cutting organs of the coulter or disk type 3, positioned in line with the tillage organs or tines 1a, 1b, 1c.

(8) FIGS. 1 and 2 also show that each tillage unit a, has four tines 1a, 1b, and 1c, the front tine 1a and the rear tine 1c being located in a centered position and intermediate tines 1b, being located at each side of the unit; said two intermediate tines 1b being located at a same level relative to the ground d. FIG. 2 also shows that the front tine 1a and the rear tine 1c are located in alignment, and the intermediate tines 1b are located at a same lateral distance with respect to said front and rear tines 1a and 1c.

(9) In a preferred embodiment the tines 1a, 1b, and 1c, can move transversally over said supporting structure, since they are mounted on a crossbar 4.

(10) In another preferred embodiment of the present invention illustrated in FIG. 3, all tillage units a are equally spaced apart on the width of the scarifier at a distance c.

(11) Tillage units a are placed on a general support structure, and are able to move transversely to modify the spacing distance c between them.

(12) FIG. 4 shows a fertilization system incorporated to the tillage unit a, comprising a conduit 5 which receives fertilizer from a hopper 6.