Anti-removal device for sulcader

Description

Descriptive Report of Utility Model Patent: ANTI-SEPARATION DEVICE FOR FURROWER Subject:

[001] This Utility Model Patent describes an anti-separation assembly for furrowing elements of agricultural machines and implements in general, especially used in planters, popularly known as a furrowing element proximity regulator. Developed to solve common problems of misalignment, wear and maintenance frequently found in current mechanisms, the assembly eliminates play, maintains the alignment of the shanks and reduces the accumulation of residue between the rows. The device comprises a solid block machined with high precision that houses and adjusts the furrowing shank in a simplified manner. State of the Art:

[002] In the search for the state of the art, documents were found for the agricultural sector, and the furrow opener with straw cutting mechanisms and fine adjustment systems for positioning the furrow opener in agricultural machines and implements was already known.

[003] With regard to patent references relating to mechanisms that address the adjustment of furrow openers, document PI 99034964, filed on 02 / 08 / 1999 by SEMEATO S / A INDÚSTRIA E COMÉRCIO, entitled “MECHANISM FOR ADJUSTING THE DEPTH OF CUTTING DISCS AND FURROW OPENERS APPLICABLE TO AGRICULTURAL MACHINES AND IMPLEMENTS”, describes a mechanism for adjusting the depth of soil penetration of cutting discs and furrow openers, applicable to agricultural machines and implements. The mechanism uses a pin with two washers of varying distances between the center of the hole and their faces, mounted on the disc arm and connected to a spring rod, attached to the machine support. By rotating the pin and changing the face of the washers in contact with the welded stop on Petition 870250007964, dated 01 / 30 / 2025, p. 6 / 18 With a 2 / 8 arm, the cutting disc depth is adjustable, providing greater or lesser penetration into the soil. The adjustment is made by loosening and retightening the nut.

[004] Document MU 8902872-4, filed on 07 / 19 / 2011 by STARA S / A. INDÚSTRIA DE IMPLEMENTOS AGRÍCOLAS, entitled “ARRANGEMENT IN A FOUR-MOVEMENT ADJUSTMENT MECHANISM FOR ADJUSTING THE POSITION OF THE FURROWING BLADE IN RELATION TO THE DISC”, describes an adjustment mechanism comprising four movements for adjusting the position of the furrowing blade in relation to the cutting disc in agricultural machinery. The vertical rotary movement is adjusted by means of a pin attached to the cutting disc fork, inserted into a cylindrical housing in the upper support; the mechanism allows horizontal translation of the blade and combined angular adjustments, with displacement guided by elongated vertical and inclined holes; and another adjustment allows horizontal translation of the scraper.

[005] Document BR202014021456-4, filed on 08 / 29 / 2014 by SEMEATO S / A INDÚSTRIA E COMÉRCIO, entitled “FINE ADJUSTMENT DEVICE FOR THE POSITIONING OF THE FURROWER OF AGRICULTURAL MACHINES AND IMPLEMENTS IN GENERAL”, presents an adjustment device designed for use in planters and aims to allow quick adjustments of the furrow opener in relation to the cutting disc. It allows adjustment in horizontal approach and distance and in vertical adjustment in relation to the disc diameter. The device comprises a chassis fixable to the tool-holder bar, with lower forks for the cutting disc and an internal circular pin to which the upper table of the furrow opener connection element is coupled. The table is supported and limited in its travel by side screws, while horizontal and vertical adjustment is performed by spindles. Additionally, the angled wedge allows the furrow opener to be aligned with the disc. Petition 870250007964, dated 01 / 30 / 2025, page 7 / 18 3 / 8

[006] In practice, furrow openers are agricultural implements used to create furrows in the soil, facilitating the planting of seeds or the application of inputs such as fertilizers. Composed of blades or discs, they penetrate the soil in a controlled manner, opening narrow channels for seed deposition. The cutting depth is a common feature, and can be adjusted by systems such as adjustment pins, allowing adaptation to different soil types. These furrows help in soil preparation, promoting a uniform distribution of seeds and nutrients, as well as improving aeration and soil moisture control.

[007] Currently, furrow openers are adjusted with screws and washers in elongated holes, allowing their position relative to the cutting discs to be adjusted. However, this method is slow, requires tools, and makes uniform alignment difficult due to uneven disc wear.Due to misalignment, premature wear occurs, resulting in frequent maintenance.

[008] Thus, several furrow openers are already known in the state of the art and use adjustment mechanisms to adjust the penetration depth and positioning in relation to the cutting discs. However, traditional methods, such as screws and washers, as described in the documents above, are slow, prone to unblocking, and compromise uniform alignment due to uneven wear of the discs and fastening components. These limitations hinder maintenance, affect implement performance, and reduce the efficiency of alignment between the furrow opener and the cutting disc.

[009] Therefore, no documents and / or references were found in the state of the art that present or suggest the present solution relating to a machined solid block, ensuring a precise adjustment of the furrowing shank, with adjustment preventing premature separation of the shank and ensuring an aligned cut eliminating play and defects. Petition 870250007964, dated 01 / 30 / 2025, page 8 / 18 4 / 8 Inventive Concept:

[010] The present Anti-Retraction Device for Furrower was developed with the objectives of: a) Adjust the furrow opener precisely using a solid, high-precision machined block; b) Reduce the accumulation of residue between the planting rows, preventing the furrow opener from slipping. c) Eliminate play and improve the alignment of the furrowing shanks, preventing premature separation and excessive wear.

[011] To achieve the above objectives, an anti-separation mechanism for furrow openers was developed to improve the performance and durability of furrow openers in agricultural implements through a solid block machined with high precision. The product eliminates play and defects that are common in mechanisms popularly known in the current market, providing an adjustment with a tolerance of up to 0.02 mm.

[012] This performance is guaranteed by the fact that the device comprises a solid central block, equipped with an internal channel that houses the furrower shaft, whose position within the channel is regulated using an adjusting nut. When the nut is tightened, the furrower is positioned towards the inside of the block, and if the nut is loosened, the furrower is positioned towards the outside of the block. Oblong holes positioned laterally to the block allow the furrower shaft to be fixed in the chosen position, according to the size of the cutting disc used. The adjusting nut, in turn, comprises an externally threaded rod that screws into the long nut with internal thread, so as to allow the rod to move by rotating the nut, which is external to the solid block.

[013] Due to the block's construction, which is solid and not made from interlocking pieces, there is a minimal gap between the internal channel and the furrower shaft, practically preventing Petition 870250007964, dated 01 / 30 / 2025, p. 9 / 18 5 / 8 misalignments, greatly increasing the durability of the assembly. The same compact design of the assembly reduces the accumulation of debris between the planting rows. Summary:

[014] This Anti-Retreat Device for Furrower comprises a solid block with an internal channel where the upper shank of the furrower is housed, which has a threaded rod into which the adjusting nut is screwed. In addition, the block and the fixing plate have oblong holes used to fix the upper shank of the furrower by means of non-permanent fastening means. Field of Application:

[015] The application of the Anti-Retreat Device for Furrowers is used as a mechanism for excavating furrows or holes for sowing, planting or fertilizing; / machines for making furrows or furrows for sowing or planting. Advantages:

[016] The Anti-Retraction Device for Furrower has the following advantages: • The fact that the device uses a solid machined block with an internal channel that allows precise adjustment of the furrowing rod eliminates play and defects common in other known mechanisms; • This arrangement ensures uniform alignment between the furrowing shank and the cutting discs, preventing uneven wear caused by a possible gap between them; • Reduces the accumulation of residue between planting rows, which increases the overall efficiency; • Provides greater durability and virtually zero wear due to manufacturing from rolled or cast steel with tolerances as low as 0.02 mm; Petition 870250007964, dated 01 / 30 / 2025, page 10 / 18 6 / 8 • Eliminates the need for special tools for adjustment, optimizing maintenance and adjustment processes in the field, since the adjustment is made by the single nut accessible from above; • It greatly increases the efficiency of the equipment, both in terms of planting and in the time that the operator would lose adjusting an inefficient setup. Illustrations

[017] In order to facilitate research and provide understanding of the present patent, as set forth in the report, according to a basic and preferred embodiment developed by the applicant, reference is made to the attached illustrations, which form part of and support this descriptive report where, the: FIG. 01 - presents a perspective of the mechanism; FIG. 02 - shows the left side view of the mechanism; FIG. 03 - shows a side view of the furrowing shank with a tip, internally showing the machined adjustment channel and adjusting nut; FIG. 04 - shows a perspective view of the machined block; FIG. 05 - presents an exploded view of the whole. Description:

[018] The Anti-Retreat Device for Furrower comprises the following main parts: a furrower (1), a block (3) and an adjusting nut (4).

[019] The furrow opener (1) is connected to the main structure of agricultural implements, such as planters, fertilizer spreaders or subsoilers by means of a coupling base (2) using fixing supports, preferably by screws, clamps or articulations with pins, being positioned next to the cutting disc (5). Petition 870250007964, dated 01 / 30 / 2025, page 11 / 18 7 / 8

[020] The furrow opener (1) consists of an elongated and curved structure that directs and widens the furrow after the passage of the tip. For this purpose it is equipped with a furrowing tip (6), preferably triangular or wedge-shaped, used to cut the soil and start the furrow, and an upper rod (7) used for fixing and adjustment. The said upper rod (7) has a threaded rod (8), used for adjustment.

[021] The block (3) is solid, this being a shape characteristic which means that it is not made up of parts that join together, but rather constitutes a single piece, without any kind of joint or weld. Preferably the block (3) is manufactured by high precision machining and has internally the channel (9) used to house the upper rod (7) which slides inside it.

[022] Laterally, the block (3) has oblong holes (10) used to fix the upper rod (7) after positioning, by means of fixing means (13), which may be pins, screws or other means known in the art. For this purpose, the plate (11), which also comprises oblong holes (12), is positioned over the channel (9), allowing the non-permanent fixing means (13) to be placed in the oblong holes (10) and (12) and in the holes (14), fixing the upper rod (7) in the block (3), in the appropriate position.

[023] Although this method of fixing between the block (3), the upper rod (7) and the plate (11), using fixing means (13) is preferred, other methods of fixing may be admitted, while still preserving the functional improvements achieved.

[024] The plate (11) can be constructed as a separate plate from the block (3), as shown in Figure 05, but, as a possible variation, the plate (11) can be integrated into the block (3), provided that it configures the same internal channel (9) for housing the upper rod (7).

[025] The block (3) is also equipped with an adjusting nut (4) which serves to adjust the position of the upper rod (7) of the furrow opener (1), which Petition 870250007964, dated 01 / 30 / 2025, p. 12 / 18 8 / 8 are made up of a single piece. The adjusting nut (4) is a rod with internal thread, into which the threaded rod (8) is screwed, so that when the adjusting nut (4) is tightened, the upper rod (7) of the furrower (1) is positioned towards the inside of the block (3) and, if the adjusting nut (4) is loosened, the upper rod (7) of the furrower (1) is positioned towards the outside of the block (3).

[026] The device is attached to the implement or agricultural equipment by means of the coupling base (2) which is a base that allows the device to be coupled using known fastening methods, such as screws, pins, clamps, welding, etc. Conclusion:

[027] Thus, the Anti-Offset Device for Furrower is supported by unprecedented technical and functional characteristics, therefore deserving the legal protection sought.

Claims

1. ANTI-SEPARATION DEVICE FOR FURROWER characterized by comprising a solid block (3) provided with a channel (9) where the upper rod (7) of the furrower (1) is housed, which has a threaded rod (8) in which the adjusting nut (4) is screwed.

2. ANTI-SEPARATION DEVICE FOR FURROWER according to claim 1 is characterized by the fact that the block (3) has oblong holes (10) and by the fact that the plate (11) has oblong holes (12), used for fixing the upper rod (7) by means of non-permanent fixing means (13).

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