SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM

Description

1 / 10 SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM FIELD OF THE INVENTION

[01] The present invention describes a mechanism for cutting, subsoiling and scarifying soil. More specifically, it comprises a mechanism assembled through a combination of a pair of cutting discs and a scarifying or subsoiling tine positioned on the inner portion, with the aim of breaking the mirrored cut of the discs, breaking up the soil and causing its particles to become loose and soft, creating a planting furrow suitable for accommodating the seeds and providing them with the best possible environment for germination.

[02] This new construction improves conditions for root development in plants, improving fertilizer distribution and bringing forward the planting time, even in still moist soils, with greater utilization, in addition to contributing to a significant increase in production in the planted area. BACKGROUND OF THE INVENTION

[03] A soil scarifier is an agricultural tool or machine used to scarify the soil. Scarification is a soil preparation process that involves loosening the topsoil without disturbing the deeper layers. This technique is frequently used in agriculture to improve soil structure, promote drainage, increase water infiltration, and allow for better plant root development.

[04] The soil scarifier is designed with sharp teeth or blades that penetrate the soil, breaking up compacted layers and loosening the Petition 870250092880, dated 10 / 10 / 2025, page 4 / 38 2 / 10 soil. This operation helps break up compaction caused by agricultural machinery traffic and other factors, allowing plant roots to extend more easily and access water and nutrients. Additionally, the scarifier can also be used to incorporate organic matter or fertilizers into the soil.

[05] It is important to note that scarification focuses on disturbing only the most superficial layers of the soil, preserving the structure and beneficial microorganisms present in the deeper layers. It is an essential tool in modern agriculture to improve soil conditions and promote better plant growth through the mobilization and aeration of the topsoil layers.

[06] Currently, the scarifiers available on the market are fitted with a single cutting disc with furrow opener, a cutting disc with a guillotine system or a cutting disc plus a double disc for fertilizers.

[07] Thus, the present inventor, seeking to improve application and usability, developed a system assembled using double cutting discs with an internal subsoiling shank, where the discs cut the straw and soil, and the internal subsoiling shank breaks up the layers of the planting furrow with minimal soil removal, contributing to the cultivation and recovery of degraded soils without the need for total cultivation, greatly contributing to the survival of soil microorganisms, to the environment, to the socio-economic development and grain production in the agricultural and livestock sectors, providing an advance for environmental conservation. Petition 870250092880, dated 10 / 10 / 2025, page 5 / 38 3 / 10

[08] This system is characterized as a strong solution for planting and for recovery and application of solid and liquid fertilizers and seeds conducted to the soil.

[09] In a search of the state of the art, we identified several documents claiming scarification systems, among which we can highlight the following documents:

[010] Document BR202016020616-8 (Jan. 2016) describes a multi-function machine, capable of operating as a subsoiler scarifier, soil acidity corrector and fertilizer distributor, comprising cutting discs, arranged frontally to the subsoiler scarifier tines with depth adjustment, wherein there are two conductors on each tine, where products from the reservoir are distributed, incorporating them into the same profile.

[011] Document BR102014028266-1 (Instituto de Agropecuária. 2014) describes a scarifier for deep strip tillage, which after a single pass allows the soil to be in suitable conditions for planting or sowing, operating with high energy efficiency, contributing to an improvement in the production environment. The scarifier comprises a plurality of tillage units, parallel and spaced from each other, where each tillage unit comprises a support structure on which corresponding tines are mounted, the lower ends of which are positioned at different heights, with the depth below the soil being greater towards the rear of the scarifier. The scarifier preferably incorporates a fertilizer application system.

[012] Document BR102013018153-6 (Marchesan. 2013) describes a soil scarifier comprising a disarming rod Petition 870250092880, dated 10 / 10 / 2025, page 6 / 38 4 / 10 equipped with a furrowing nozzle and a disarming rod support, the disarming rod being articulately mounted on the disarming rod support between a soil tearing position and a non-soil tearing position, the disarming rod having associated with it a disarming rod shaft, wherein the disarming rod shaft is at least partially enclosed by a protective cover within which the disarming rod shaft is capable of moving longitudinally between the soil tearing position and the non-soil tearing position. According to the present invention, a scarifier is provided in which its disarming shaft has physical protection against abrasive field elements, greatly increasing the service life of this component and reducing the need for scarifier maintenance.

[013] Document BRPI0806144-0 (Baldan. 2008) describes a device composed of a scarifying element that performs a longitudinal disengagement movement, returning to its original position after overcoming the obstacle. This invention was designed to provide an angular movement for overcoming objects without impact on the tubular system of the implement, given that it is fixed by pairs of bars. There is also the insertion of a screw that regulates the load exerted on the spring, thus providing an adaptation to different soil conditions.

[014] Document BRPI0403562-3 (Deere. 2004) describes a scarifier tip structure that includes a nose with a tapered top that initiates the lifting and fracturing of compacted soil layers. The tapered top with an included angle of approximately 100 degrees just ahead of the splitting wear leg creates a splitting stress that increases until the central portion of the soil profile is cut by a Petition 870250092880, dated 10 / 10 / 2025, page 7 / 38 5 / 10 sharp leading edge of the leg. In a winged embodiment, the gently angled scarifier tip wings gradually introduce the fracture plane left below the compaction layer and initiate a second fracture of the soil profile. The wings are spaced rearward from the tip so that the tip and wear leg have sufficient time to lift, fracture, and split the soil profile in contact with the shank before any wing steel.

[015] These documents cited in the state of the art describe constructive forms applied in scarifiers, however these documents do not describe a soil cutting, subsoiling and scarification mechanism equipped with a pair of discs that internally receive a scarifying tine that breaks the layers of the planting furrow with minimal soil removal.

[016] Thus, the present invention relates to a mechanism assembled by combining a pair of cutting discs and a scarifying or subsoiling tine positioned on the inner portion, with the aim of breaking the mirrored cut of the discs, breaking up the soil and causing its particles to become loose and soft, creating a planting furrow suitable for accommodating the seeds and providing the best possible environment for germination. This new construction improves the conditions for root development of plants, improving the distribution of fertilizers and anticipating the planting time, even in still moist soils, with greater utilization, in addition to contributing to a significant increase in production in the planted area. SUMMARY AND OBJECTIVES OF THE INVENTION Petition 870250092880, dated 10 / 10 / 2025, page 8 / 38 6 / 10

[017] These characteristics promote greater efficiency in breaking up the planting furrow layers, when compared with prior art documents.

[018] A characteristic of the present invention is a soil cutting, subsoiling and scarifying mechanism that provides a rod equipped with a tooth for fixing the rod support via a screw.

[019] A characteristic of the present invention is a soil cutting, subsoiling and scarifying mechanism that provides a scarifying tine fixed to the support by means of screws.

[020] The present invention features a soil cutting, subsoiling and scarifying mechanism that provides a support and scarifying tine that are positioned between the pair of discs, arranged on the left and right sides.

[021] A characteristic of the present invention is a soil cutting, subsoiling and scarifying mechanism that provides constructiveness that improves conditions for plant root development.

[022] The present invention features a soil cutting, subsoiling and scarifying mechanism that provides a constructiveness that facilitates the application of fertilizers and anticipates the planting time, even in still moist soils, with greater efficiency.

[023] A characteristic of the present invention is a soil cutting, subsoiling and scarifying mechanism that provides constructiveness that has contributed to a significant increase in production in the planted area. BRIEF DESCRIPTION OF THE FIGURES

[024] Figure 1 shows a perspective view of the equipment on the ground.

[025] Figure 2 shows a rear perspective view of the equipment on the ground. Petition 870250092880, dated 10 / 10 / 2025, p. 9 / 38 7 / 10

[026] Figure 3 shows a side view of the equipment on the ground.

[027] Figure 4 shows a perspective view of the equipment on the ground, detailing the scarification mechanism.

[028] Figure 5 shows a perspective view of the scarification mechanism.

[029] Figure 6 shows a rear perspective view of the scarification mechanism.

[030] Figure 7 shows a side view of the scarification mechanism.

[031] Figure 8 shows a top view of the scarification mechanism.

[032] Figure 9 shows a side view of the scarification mechanism, without one of the discs in order to detail the internal assembly.

[033] Figure 10 shows a perspective view of the scarification mechanism, without one of the discs in order to detail the internal assembly.

[034] Figure 11 shows a perspective view of the internal assembly of the mechanism, without the arrangement of the discs.

[035] Figure 12 shows a side view of the internal assembly of the mechanism, without the arrangement of the discs.

[036] Figure 13 shows a side view of the scarifier assembly, detailing its construction.

[037] Figure 14 shows the bottom perspective view of the scarifier assembly, detailing its construction.

[038] Figure 15 shows the rear perspective view of the scarifier assembly, detailing its construction. Petition 870250092880, dated 10 / 10 / 2025, page 10 / 38 8 / 10

[039] Figure 16 shows a perspective view of the scarifier assembly, detailing its construction.

[040] Figure 17 shows an exploded perspective view of the scarifier assembly, detailing its construction.

[041] Figure 18 shows an exploded perspective view of the mechanism applied to the equipment.

[042] Figure 19 shows the exploded view detail of the mechanism.

[043] Figure 20 shows, in a second constructive embodiment, the scarifying rod with the claw. DETAILED DESCRIPTION OF THE INVENTION

[044] The soil cutting, subsoiling and scarifying mechanism, object of the present invention, comprises a mechanism (100) equipped with a fixing rod (10) attached to the chassis (200) and which allows the arrangement of the pair of discs (20), arranged on the left and right sides, with the scarifying rod support (30) and the scarifying rod (40) arranged between the discs (20).

[045] The shaft (10) is equipped with fixing points (11) by means of a screw next to the chassis (100), a flange (12) equipped with a structure (121) protecting the double cutting discs and a projection (13) that allows the discs (20) to be fixed by means of a shaft and bearings.

[046] In the lower portion of the projection (13) there is a tooth (131) for fixing the support of the scarifying rod (30) by means of a screw (131 A).

[047] Double cutting discs (20) can be corrugated, wavy, countersunk or smooth, as needed for use and application. Petition 870250092880, dated 10 / 10 / 2025, p. 11 / 38 9 / 10

[048] The rod support (30) is provided with a groove (31) which allows the fixing of the tooth (131) of the projection (13) by means of the screw (131 A), a lower projection (32) and a rear projection (33).

[049] The projection (32) allows the fixing of the cutting structure (40) which is fitted together with the groove (321) of the projection (32) and fixed by means of screws (322A).

[050] The cutting structure of the scarifying shank (40) is self-exchangeable and has lateral projections (41) and a lower projection (42), being able to remove hard soil particles on the left side, on the right side and on the lower side of the planting furrow, making the soil soft and prepared with minimum tillage, to receive fertilizers and seeds in a single operation.

[051] The structure (40) has a low-relief upper projection (43) that allows it to fit into the groove (321) of the structure (30), the projection (43) being provided with fixing points (431) aligned with the points (322).

[052] Projection (33) for fitting seed and fertilizer conveying tubes.

[053] The chassis (200) of the equipment allows the attachment of the mechanism (100), of the seed / fertilizer storage box (201) equipped with a tube (202).

[054] This new constructivity applied to the mechanism (100) allows breaking up the planting furrow layers with minimal soil removal, contributing to the cultivation and recovery of degraded soils without requiring total cultivation, improving the survival of soil microorganisms, assisting the environment, socio-economic development and greater grain production in agriculture and livestock farming, providing an advance for environmental conservation. Petition 870250092880, dated 10 / 10 / 2025, page 12 / 38 10 / 10 environment. This system is characterized as a strong solution for planting and for the recovery and application of solid and liquid fertilizers and seeds to the soil.

[055] The flaps (41 and 42) of the scarifying rod (40) can be manufactured with swarf projections as needed for soil decompaction.

[056] In a second constructive embodiment, the scarifying rod (40) is fitted at the bottom with a larger claw (50) for breaking through the furrow at a greater depth in the soil. Petition 870250092880, dated 10 / 10 / 2025, page 13 / 38

Claims

1 / 3 CLAIMS:

1. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM characterized by comprising a rod (10) equipped with a tooth (131) for fixing, by means of a screw (131 A), the rod support (30) which receives the fixing of the scarifying rod (40) by means of screws (322A), said support (30) and rod (40) being positioned between the pair of discs (20), arranged on the left and right sides.

2. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the rod (10) is provided with fixing points (11) by means of a screw next to the chassis (100).

3. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the rod (10) is provided with a flange (12) having a structure (121) for protecting the double cutting discs and a projection (13) that allows the discs (20) to be fixed.

4. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the support (30) is provided with a groove (31) that allows the fixing of the tooth (131) of the projection (13) by means of the screw (131 A), a lower projection (32) and a rear projection (33).

5. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the projection (32) allows the fixing of the cutting structure (40) which is fitted together with the groove (321) of the projection (32) and fixed by means of screws (322). Petition 870250092880, dated 10 / 10 / 2025, p. 14 / 38 2 / 3 6. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the self-exchangeable scarifying shank (40) has lateral projections (41) and a lower projection (42).

7. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 6, characterized in that the flaps (41)(42) of the scarifying shank (40) are manufactured with screed projections as needed for soil decompaction.

8. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the scarifying rod (40) has an upper projection (43) in low relief that allows it to fit into the groove (321) of the structure (30), the projection (43) being provided with fixing points (431) aligned with the points (322).

9. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the scarifying shank (40) is provided with a projection (33) for fitting seed and fertilizer conveying tubes.

10. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, characterized in that the double cutting discs (20) are corrugated, wavy, scarified or smooth, according to the need for use and application.

11. SOIL CUTTING, SUBSOILING AND SCARIFICATION MECHANISM, according to claim 1, in a second constructive embodiment, characterized by the scarifying shank Petition 870250092880, of 10 / 10 / 2025, p. 15 / 38 3 / 3 (40) being equipped at the bottom with a larger claw (50) for breaking at a greater depth in the soil furrow. Petition 870250092880, of 10 / 10 / 2025, p. 16 / 38

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