SISTEMA DE MONTAGEM, TRAVAMENTO, DESTRAVAMENTO E DESMONTAGEM DE UNIDADES DE TELAS QUE INTEGRAM UM DISPOSITIVO DE PROTEÇÃO APLICADO NA(S) LATERAL(IS) DE EQUIPAMENTOS DO TIPO ESTEIRAS TRANSPORTADORAS DE MATÉRIA PRIMA, SEU PROCEDIMENTO DE MONTAGEM, SEU PROCEDIMENTO MONTAGEM E TRAVAMENTO E PROCEDIMENTO DE DESTRAVAMENTO E DESMONTAGEM DA TELA DE PROTEÇÃO

Description

1 / 26 “ASSEMBLY, LOCKING, UNLOCKING AND "Disassembly of screen units that form part of a protective device applied to the side(s) of raw material conveyor belt type equipment, its assembly procedure, its assembly and locking procedure, and the procedure for unlocking and disassembling the protective screen." TERMINOLOGY [1] For the purpose of better understanding the subject matter disclosed and claimed in the industrial patent described herein, the meaning of some technical terms and acronyms frequently cited in the body of the descriptive report is presented, namely: [2] - System: for the purposes of this industrial patent, it is defined as an integrated set of regularly interrelated and interdependent components created to compose a protection device applied to the side(s) of ore conveying equipment; [3] - Industrial installation: encompasses a range of activities that include the electrical, civil construction, hydraulic, mechanical and human resources sectors, in order to guarantee the full operation of the industrial unit, as well as the efficiency of the production processes. For the purposes of this industrial patent, an industrial installation, defined here as the industrial installation of interest, is considered to be a mining installation for various raw materials, such as iron ore, rock salt, clays, among other related materials; [4] - Production line: can be understood as a form of mass production or continuous production process, where Petition 870250071470, dated 08 / 13 / 2025, page 6 / 35 2 / 26 Several workers, with the help of machines and / or equipment, specialized in various specific and repetitive functions, working sequentially or continuously. For the purposes of this industrial patent, the equipment considered is a conveyor belt for raw materials, this example not being a limitation of the field of application; [5] - Conveyor belt: facilitates the movement of raw materials, finished products or supplies. The conveyor belt is a fairly simple type of equipment, consisting of pulleys that move a surface over which various types of objects or materials are transported, and can also be of the type of conveyor belts; [6] - NR12 Standard: a Brazilian standard, published in 1978, aimed at regulating occupational safety and quality in Brazil, and concerns the use and inspection of machines and equipment whose operation may expose operators and / or passersby to the danger of accidents or incidents in all sorts of production lines and / or operations. It helps to reduce the risk of accidents and promote the well-being of employees, mitigating labor lawsuits, as well as the application of fines resulting from the inefficiency of production processes due to misuse and lack of inspection of equipment. NR 12 requires complete information on the entire life cycle of machines and equipment, including transportation, installation, use, maintenance, and even their disposal at the end of their useful life.In addition to everything else, this is one of the most extensive standards among the 36 regulatory standards of the Consolidation of Labor Laws; [7] - Production line of interest: for the purposes of this industrial patent, it is defined as any production line that. Petition 870250071470, dated 08 / 13 / 2025, page 7 / 35 3 / 26 has incorporated machinery and / or equipment that can be identified as potentially posing a safety risk to operators and / or passersby who remain minimally positioned adjacent to them, using as a paradigm the extraction and transport line of ores in general, clays, rock salt, among others; [8] - ART: acronym for Technical Responsibility Annotation; [9] - CIPA: acronym for Internal Commission for Accident Prevention;

[10] - Ergonomics: is the science that studies the adaptations of work so that employees can carry out activities in a safe and efficient manner;

[11] - Corrective Maintenance: according to the Brazilian standard NBR-5462, it is the maintenance carried out after the occurrence of a failure (or breakdown), intended to restore an item to a condition where it can perform a required function. Corrective Maintenance is the most expensive type of maintenance, which takes the most time and causes the most damage to the company;

[12] - Technological basis: for the purposes of this patent, it deals with the constructiveness already known in the state of the art for protective devices for ore conveyor belts and related items;

[13] - Man of the trade: according to the understanding of the treatise writers CHAVANNE, Albert & BURST, Jean-Jacques, in their work Droit de La Propriété Industrielle. Paris: Dalloz, 1993, pp. 53-55, in a referential way, it is the technician in the subject who possesses normal and average knowledge of the technique that is the object of analysis, which for the purposes of the present invention is the professional Petition 870250071470, dated 08 / 13 / 2025, page 8 / 35 4 / 26 responsible for projects involving protection / barrier systems applied to machinery and equipment, especially projects carried out in accordance with the requirements and specifications of the NR12 standard;

[14] - IPC: International Patent Classification; and

[15] The list of terms, technologies and technical concepts presented in this preliminary topic should be appreciated for the correct understanding of the present invention, providing the necessary descriptive sufficiency to the body of this descriptive report, as well as being used as a reference for studies in comparative analyses, either with hypothetical solutions from the state of the art, that is, prior to the invention and not cited in this document, or for products of the same nature and the same international patent classification (IPC), disclosed and / or marketed by third parties other than the holder(s) of this industrial patent. DESCRIPTION OF THE FIGURES

[16] To complement the present description in order to obtain a better understanding of the state of the art, identification of the problem to be solved and the distinctive characteristics of the present invention, a set of drawings is attached to the description, where:

[17] Figure .1a is a representation in a photographic report of a conveyor belt for minerals, representative of the field of application of the industrial patent, see internet link https: / / www.ferreiraroletes.com.br / correia-esteira-transportadora.php;

[18] Figure 1b is a photographic report representation of an ore conveyor belt, representative of Petition 870250071470, dated 08 / 13 / 2025, page 9 / 35 5 / 26 field of application of the invention patent, see link https: / / www.ferreiraroletes.com.br / correia-esteiratransportadora.php, highlighting the risk area, that is, the side passage deck for workers and / or passersby next to the mining conveyor belt;

[19] Figure 2a is an illustrative representation in a side view drawing of a conveyor belt type ore conveyor viewed longitudinally, representative of the technical field of the industrial patent;

[20] Figure 2b is an illustrative representation in an elevation view drawing of a conveyor belt type ore conveyor seen longitudinally where it highlights the accident risk areas, which determine the decision on the need to implement a protection device in light of the NR12 standard;

[21] Figures . 3a and . 3b depict illustrative representations in side and elevation views respectively of an ore conveyor belt, highlighting the implementation of a side protection device in accident risk areas in accordance with NR12 standard;

[22] Figure .4a is an illustrative representation in front perspective view drawing of a protective screen unit that integrates the improved side protection device, highlighting its construction;

[23] Figure .4b is an illustrative representation in a rear perspective view drawing of a protective screen unit that integrates the improved side protection device, highlighting its construction; Petition 870250071470, dated 08 / 13 / 2025, page 10 / 35 6 / 26

[24] Figure .4c is an illustrative representation in front view drawing of a protective screen unit that integrates the improved side protection device, highlighting its construction;

[25] Figure .4d is an illustrative representation in enlarged detail of the front view of a protective screen unit that integrates the improved side protection device, highlighting the distinctive element of the mounting and locking system of this device;

[26] Figure .5a is an illustrative representation in exploded perspective view drawing of the “fastening element” component that integrates the mounting and locking system of the improved side protection device;

[27] Figure .5b is an illustrative representation in exploded side view drawing of the “fastening element” component that integrates the mounting and locking system of the improved side protection device;

[28] Figure .6a is an illustrative representation in front perspective view drawing of an improved support tower unit, highlighting the distinctive elements that integrate the improved side protection device, highlighting its constructiveness;

[29] Figure .6b is an illustrative representation in front view drawing of an improved support tower unit, highlighting the distinctive elements that integrate the improved side protection device, highlighting its construction;

[30] Figure .6c is an illustrative representation in drawing Petition 870250071470, dated 08 / 13 / 2025, page 11 / 35 7 / 26 rear view of an improved support tower unit, highlighting the distinctive elements that integrate the improved side protection device, demonstrating its construction;

[31] Figure .6d is an illustrative representation in elevation view drawing of an improved support tower unit, highlighting the distinctive elements that integrate the improved side protection device, highlighting its constructiveness;

[32] Figure .6e is an illustrative representation in bottom view drawing of an improved support tower unit, highlighting the distinctive elements that integrate the improved side protection device, highlighting its construction;

[33] Figure .6f is an illustrative representation in an enlarged front perspective view drawing of Figure .6a, highlighting the constructiveness of the key locking mechanism;

[34] Figure .7a is an illustrative representation in enlarged detail view of the key locking mechanism;

[35] Figure .7b is an illustrative representation in orthogonal section view of the enlarged detail of the key locking mechanism of Figure .7a;

[36] Figure .8a is an illustrative representation in front perspective view drawing of an improved support tower component mounting pedestal unit, which integrates the improved side protection device, highlighting its construction;

[37] Figure .8b is an illustrative representation in drawing Petition 870250071470, dated 08 / 13 / 2025, page 12 / 35 8 / 26 front view of an improved support tower component mounting pedestal unit, which incorporates the improved side protection device, highlighting its construction;

[38] Figures .9a and .9b are illustrative representations in front and rear perspective view drawings respectively, indicating the through-mounting procedure of the “fastening element” component at the end of one side of the protective screen component;

[39] Figures .9c and .9d are illustrative representations in front and rear perspective view drawings respectively, indicating the procedure for fixing the “fastening element” component to the end of one side of the protective screen component;

[40] Figures .10a and .10b are illustrative representations in front and rear perspective view drawings respectively, indicating the assembly and fixing procedure of a pair of support towers next to their respective fixing pedestals previously fixed to the floor of the industrial installation, immediately prior to the fixings;

[41] Figures .10c and .10d are illustrative representations in front and rear perspective view drawings respectively, indicating the assembly and fixing procedure of a pair of support towers next to their respective fixing pedestals previously fixed to the floor of the industrial installation, immediately after the fixings;

[42] Figure .10e is an illustrative representation in drawing Petition 870250071470, dated 08 / 13 / 2025, page 13 / 35 9 / 26 front perspective view of the procedure for assembling the protective screen between two pairs of support towers, immediately before assembly;

[43] Figure .10f is an illustrative representation in front perspective view drawing of the procedure for mounting the protective screen between two pairs of support towers, immediately after assembly;

[44] Figures .10g and .10h are detailed enlarged representations of the coupling region of the upper and lower ends of one side of the protective screen to the coupling elements defined in one of the support towers;

[45] Figure .10i is an enlarged detail representation of an orthogonal cutaway of the coupling assembly of the fastening element defined on the other side of the protective screen next to the key-operated locking mechanism defined on the other support tower;

[46] Figure .10j is a detailed, enlarged orthogonal cross-sectional representation of the locking of the protective screen fastening element to the locking element defined inside the key-operated locking mechanism;

[47] Figure .10k is an illustrative representation in front perspective view drawing of a functional module of the improved protection device with the inventive system for mounting and fixing the protective screen;

[48] ​​Figures .11a and .11b are illustrative representations in front perspective views of the assembly of a second protection module adjacent to the side of a first module formed by support tower + protection screen + support tower, showing the conformation of a plurality of Petition 870250071470, dated 08 / 13 / 2025, page 14 / 35 10 / 26 modules that make up the protective device applied to the sides of mining conveyor belts; and

[49] Figures .12a, .12b and .12c are illustrative representations in front perspective views of the assembly of a second protection module, superimposed on the first protection module, showing the perfect positioning between the protection screens, without leaving any empty space between them, inhibiting any attempt to overcome this protection barrier. TECHNICAL FIELD

[50] The present invention patent, whose title is given above and which is the subject of description and claims in this document, deals with an inventive solution that finds significant benefit when applied to protect operators and / or passersby who operate or transit in the vicinity of operational units (machines / equipment) of industrial installations, specifically operational units that have component parts that, in light of the NR12 standard, represent a risk of accidents.

[51] In this context, by way of example, but not limited to, the technical field in the mining area can be defined as equipment of the type conveyor belts (Te), see figure .1a, and tubular conveyor belts (Tc), see figure .1b, intended for the transport of any raw material, such as ore, for example, food grains and related products, provided that the constructive concept of this type of conveyor is maintained.

[52] As explained in figures .2a and .2b, where the title Petition 870250071470, dated 08 / 13 / 2025, page 15 / 35 11 / 26 of example, it should be said, not restrictive, represents a conveyor belt type ore conveyor (Es), installed on a certain terrain (Pi) showing the conveyor belt (Es1) itself, on which the raw material (Mi) is transported, for example iron ore, bauxite, clay, among others, and where from a practical point of view, the presence of individuals (Op) is common, such as workers and / or passers-by, and the accident risk area (Ar) is also highlighted, see figure .1b. INDUSTRIAL PATENT APPLICATION

[53] a. Introduction

[54] In view of the previously defined technical field, the applicant identified the need to provide the necessary adjustments in order to meet the strict requirements of the occupational safety standard, NR 12 - Occupational Safety in Machinery and Equipment, which establishes the protection measures to guarantee the physical integrity of workers and the prevention of accidents in the design and use phases of machinery and equipment.

[55] b. Application for a patent of invention

[56] The patent application for invention is translated by the identification of the need for constant idealization of improvements applied to protective devices (Di) for the operator and / or passerby who is positioned near the conveyor belt (Es), equipment where the possibility of work accident risk has been identified, and for the present industrial patent, the application of these protective devices (Di) on the sides of the Petition 870250071470, dated 08 / 13 / 2025, page 16 / 35 12 / 26 referred conveyor belt (Es), as illustrated in figures .3a and .3b.

[57] As a consequence, devices must be designed to mitigate such occurrences, always taking as a design paradigm the requirements imposed by the NR12 standard.

[58] In turn, once the occupational safety device has been designed, it guarantees the employer the mitigation of workplace accidents, and is therefore a solution that helps to achieve the objectives of the company's CIPA.

[59] From an industrial point of view, the implementation of the occupational safety device minimizes the need for unscheduled shutdowns for predictive and / or corrective maintenance of a production line.

[60] Finally, a reduction in the industrial cost of mining and related industries will be observed, notably due to the reduction in interruption of ore transport lines resulting from work accidents. INDUSTRIAL PATENT REQUIREMENTS

[61] In accordance with the patent application, the applicant conceived the “assembly, locking, unlocking and disassembly system for screen units that integrate a protective device applied to the side(s) of equipment such as raw material conveyor belts, its assembly procedure, its assembly and locking procedure and the unlocking and disassembly procedure of the protective screen” provided with novelty associated with inventive activity, since they do not arise in an obvious or evident way from Petition 870250071470, dated 08 / 13 / 2025, page 17 / 35 13 / 26 other techniques anticipated by the state of the art, conferring advantages from an industrial, commercial and technical point of view.

[62] In addition, the invention patent is provided with industrial application, being economically viable and therefore meeting the strict requirements for patentability.

[63] It should be added that although a protective device intended for occupational safety has its specification and technical requirements governed by the NR12 standard, it must be emphasized that this standard in no way anticipates the inventive concept of the present patent, being limited to defining the essential protective characteristics that the device must provide.

[64] By way of example only, work safety devices applied to conveyor belts, in light of the NR12 standard, must consist of a continuous structure, with a minimum distance from the point of risk and a protective screen opening that does not allow the passage of any object or material being transported, as well as human body parts that could cause injury to operators and / or passersby, equipped with means of fixing and locking in such a way that it can only be removed with an appropriate tool.

[65] Therefore, the present invention patent is nothing more than a form of embodiment that makes it feasible to meet the technical requirements defined in the NR12 standard, but which brings with it essential distinctive characteristics that are not anticipated by the solutions of devices of this nature anticipated by the state of the art.

[66] Finally, it is correct to state that a technician in the subject, or a man of the trade, when faced with the matter Petition 870250071470, dated 08 / 13 / 2025, page 18 / 35 14 / 26 disclosed for conventional protective devices intended for workplace safety applied to conveyor belts, does not, with the teachings they provide, achieve the solution disclosed and claimed in the present invention patent. FUNDAMENTALS OF THE TECHNIQUE

[67] In order to provide veracity, and to consolidate the context explained in the introductory table topics, an explanation will be presented on the state of the art for occupational safety devices applied to raw material conveyor belts, where after critical analysis of these, once evaluated by skilled workers, they will be able to identify their limiting aspects, thus consolidating the identification of the set of demands previously listed.

[68] a. State of the art

[69] Research in patent databases reveals that there are numerous solutions in occupational safety devices applied to equipment such as raw material conveyor belts, among which the following documents deserve highlighting.

[70] - US patent document US5947266, published on 07 / 09 / 1999, entitled “PROTECTIVE AND INSULATING BOX WITH REMOVABLE PANELS FOR A TRANSFER UNIT”, describes a protective and insulating enclosure for a raw material conveyor-type transfer unit, the enclosure being formed by sides consisting of removablely mounted panels between a profiled lower support section and the bottom, said panels having housed ends Petition 870250071470, dated 08 / 13 / 2025, page 19 / 35 15 / 26 so as to be encapsulated in a linear cavity of a rear top profiled section, allowing all panels to be mounted and removed easily and quickly. A profiled section is provided such as the uprights with a section below the panel that fits into the linear cavity of the bottom support (such as defined fittings on the panels that slide on the uprights).

[71] - US patent document US5078250, published on 07 / 01 / 1992, entitled “UNIVERSAL SAFETY PROTECTION ASSEMBLY FOR A CONVEYOR”, describes an adjustable safety protection assembly for a conveyor that includes frame modules mounted adjacent to a conveyor belt via support arms.

[72] - Brazilian patent document PI 1003853-1, published on 09 / 22 / 2010, entitled “PROTECTION ASSEMBLY FOR CONVEYOR BELTS IN GENERAL”, applied to the structure of a conveyor belt, formed by a plurality of screens fixed at their lateral ends to respective uprights where hollow spacer plugs with recesses for receiving screws are pronounced, and at their lateral ends guides are defined, and from the second half of this upright the guides are offset from each other and are mounted through the respective fittings defined at the lateral ends of the screens, whose displacement range is limited by the respective stops defined at the upper ends of these fittings.

[73] b. Conventional constructive concept: reading the information revealed in patent documents US5078250, US594726 and PI 1003853-1, although not exhaustive, it is possible to affirm that in essence they represent a concept Petition 870250071470, dated 08 / 13 / 2025, p. 20 / 35 16 / 26 conventional construction, where frame modules are provided that are fixed to support arms (or spacer plugs) which in turn are fixed to the structure of a conveyor belt type equipment.

[74] c. Problem identification

[75] Conventional solutions in protective devices intended for workplace safety applied to equipment such as raw material conveyor belts, represented by prior art documents US5078250, US594726 and PI 1003853-1, although they manage to meet the safety requirements established by the NR12 standard, when analyzed with a more critical technical eye, reveal some negative aspects, namely:

[76] c.1 From a technical point of view:

[77] - Complexity is identified in the product design of the component parts of the devices anticipated in the prior art documents US5078250, US594726 and PI 1003853-1, notably when defining the engagement or fitting system between the protective screens and their respective peripheral plugs (support towers).

[78] c.2 From an ergonomic point of view

[79] A lack of ergonomics in the assembly and disassembly of the plates is identified when maintenance needs to be carried out on a certain section of the conveyor belt, where the operator encounters difficulty in assembling / disassembling and fitting / unfitting between plates and also of the plates in their respective uprights.

[80] c.3 From the point of view of equipment maintenance

[81] Due to lack of ergonomics during assembly / disassembly Petition 870250071470, dated 08 / 13 / 2025, page 21 / 35 17 / 26 of the work safety device, a bottleneck is created in maintenance operations, notably corrective maintenance of the conveyor belt equipment, because the conventional device becomes an obstacle to the maintenance team's immediate access to the area of ​​the conveyor belt where the bottleneck occurred that caused the interruption of transport movement.

[82] c.4 In the light of the industrial cost point of view

[83] Due to the difficulty of access for carrying out corrective maintenance, because the work safety device becomes an obstacle to its execution, prolonged interruptions in the flow of transport of materials extracted from mining, extraction, and other activities result in losses for the company that carries out this primary activity, since corrective maintenance activities are recognized as the most costly of all types of maintenance. INVENTION PATENT PROPOSAL

[84] a. Objective

[85] The primary objective is to solve all the negative / restrictive aspects previously listed, or in other words, to solve the problems identified for state-of-the-art solutions for safety protection devices for work applied to equipment such as raw material conveyor belts, thus meeting the set of needs previously identified.

[86] Another objective of the new work protection and safety device is to allow for quick assembly along the entire length of the sides of the conveyor belts. Petition 870250071470, dated 08 / 13 / 2025, page 22 / 35 18 / 26 ores, continuously, because as experts in the field know, for the mining industry, conveyor belt type structures are characterized by being very long and require speed in the installation of protections.

[87] Therefore, the characteristic of agility is particularly desirable during the deployment activity of this type of device, making it ergonomic from the point of view of its implementation.

[88] Another objective within the scope of ergonomics is that the work protection and safety device facilitates operator access to any sector of the conveyor belt when corrective maintenance is required.

[89] Another objective of the present invention is to mitigate losses from production stoppages caused by impeding the conveyor belt equipment for transporting raw materials of a mineral or related nature, preventing the work protection and safety device from being a barrier that hinders the maintenance of the conveyor belt without, however, renouncing its main function of protecting and ensuring the safety of operators and passersby positioned adjacent to it.

[90] b. Distinctive feature: to make feasible the scope of the patent of invention, a novel system for mounting and fixing the protective screens to the pair of respective support towers was devised, where:

[91] - First assembly movement: this is done quickly, simply by positioning the upper and lower edges of one of the sides of the protective screen in a pair of defined claws on the extreme vertical portion of a tower. Petition 870250071470, dated 08 / 13 / 2025, page 23 / 35 19 / 26 improved support, with the first claw in an inverted "L" shape, located at the upper end, and the second claw in an "L" shape, located in the middle portion, with both claws positioned slightly further apart than the height of the protective screen;

[92] - Second assembly movement: this is also done quickly, simply by positioning the fastening element defined in the middle portion of the other side of the protective screen over the key locking mechanism defined in the other extreme portion of the support tower; and

[93] - Locking of the protective device: this is done quickly by simply coupling the male thread of the fastening element with the free female thread defined inside the locking mechanism with a key.

[94] This key locking mechanism consists of a structural box with an opening in its front part, and inside which is defined a threaded nut with a conical upper cam, which has the function of providing the correct positioning of the male thread segment of the fastener to its female thread, thus eliminating possible misalignments between the respective male and female threads. DETAILED DESCRIPTION

[95] The following detailed description should be read and interpreted with reference to the drawings presented, representing a preferred embodiment of the invention patent, both for the inventive device and for its assembly, locking, unlocking and disassembly procedures of the improved device, not being Petition 870250071470, dated 08 / 13 / 2025, page 24 / 35 20 / 26 intended to limit its scope, being limited only to what is explicitly stated in the claims section.

[96] a. Constructive concept

[97] a.1 Technological basis

[98] The improved protection device (Di), see figure .10k, applied to the sides of conveyor belts (Et), see figures .3a and .3b, has its technological basis, that is, known state-of-the-art components formed by the protective screen components (10) and support towers (30) which are fixed on respective pedestals (40).

[99] a.2 Distinctive feature

[100] Each of the components defined by the technological basis of the improved protection device (Di) incorporates distinctive characteristics that together converge to the improved mounting and locking system, which are described here:

[101] - Protective screen (10): as illustrated in figures .4a to .4d, it is formed by a typically rectangular structure (11), provided with a plurality of perforated elements (12), and can be made of either polymeric or metallic material (in which case it must receive corrosion treatment), with an orifice (13) defined approximately on the vertical perimeter of one of its ends, with the function of receiving the mounting of a fastening element (20);

[102] - Fastening element (20): as illustrated in figures .5a and .5b, it consists of a screw (21), preferably an Allen screw and its nut (22), with the function of providing the locking of the protective screen (10) to the mechanism of Petition 870250071470, dated 08 / 13 / 2025, p. 25 / 35 21 / 26 key locking (X) defined on the front face of one of the peripheral flanges of the support towers (30);

[103] — Support towers (30): as illustrated in figures .6a to .6f, it is formed by an extruded “U” profile (31), provided with a plurality of adjustment holes (32) delimited by peripheral flanges (33) and (34), wherein the peripheral flange (33) defines the key locking mechanism (X) and the peripheral flange (34) defines a pair of claws (35) and (36), wherein the claw (35) has an inverted “L” profile, defined at the upper end of the peripheral flange (34) and the second claw (36) has an “L” profile, defined in the intermediate portion of the peripheral flange (34), wherein both claws (35) and (36) are spaced slightly greater than the height of the protective screen (10).

[104] In addition, the key locking mechanism (X) has its construction revealed in figures .7a and .7b, being formed by a square box (X1) provided with an opening (X2) in its lid, whose diameter is slightly larger than the diameter of the nut (22) of the fastening element (20), and whose interior of this square box (X1) has a defined special square nut (Y), provided with a body (Y1) of dimensions slightly smaller than the internal dimensions of the square box (X1), whose upper part has a defined conical profile (Y2) with the function of inviting the positioning and alignment of the male thread sector of the fastening screw (21), and at the end of this conical profile (Y2) a female threaded channel (Y3) is developed with the function of receiving the interaction with the aforementioned male thread sector of the fastening screw (21); Petition 870250071470, dated 08 / 13 / 2025, page 26 / 35 22 / 26

[105] — Pedestals (40): as illustrated in figures .8a and .8b, being formed by a base (41) fixed to the floor on which is fixed a beam (42) with extruded square profile, whose front face has defined a plurality of adjustment pins (43), with the function of receiving the assembly and fixing of the support towers (30) through their adjustment holes (32).

[106] a.3 Understanding the mounted protection device (Di)

[107] Once the components of the device (Di) have been described in detail, it can be visualized assembled through figure .10k, which in summary is formed by a pair of support towers (30) that are fixed on their respective pedestals (40), wherein the distance (d1) between the innermost part of the peripheral flange (34) of the support tower (30a) and the innermost part of the flange (33) of the support tower (30b), see figure .10d, must be the same as the length (d2) of the protective screen (10), see figure .4c, where its upper edges (10a) and (10b) fit into the claws (35) and (36) respectively, of the support tower (30a), see figures .10g and .10h, wherein the other lateral end (10c) of this protective screen (10) overlaps the fastening element (20) on the mechanism of lock with key (X), see figure .10j.

[108] One aspect that deserves highlighting is the fact that the support tower (30), despite having an extruded base formed by a “U” section (31) from whose ends peripheral edges (33) and (34) extend, the coupling elements, in the form of claws (35) and (36) for a first coupling tower (30a), act only to receive the lateral edges (10a) and (10b) of one of the protective screens (10), and the fixing of this will always take place together Petition 870250071470, dated 08 / 13 / 2025, page 27 / 35 23 / 26 to the key locking mechanism (X) defined on the other support tower (30b), as illustrated in figure .10e.

[109] b. Procedure for mounting and locking the protective device (Di)

[110] It must follow the sequential steps:

[111] Step 1 Through-mounting of the screw component (21) of the fastening element (20) through the front part of the hole (13) of the protective screen (10), see figures .9a and .9b;

[112] Step 2 Fixing the screw component (21) to the back of the protective screen (10), with the application of the nut (22), see figures .9c and .9d;

[113] Step 3 Assembly of the pedestals (40a) and (40b), positioned apart from each other, at a distance (h); see figure .10h, this distance must ensure that the pair of support towers (30a) and (30b) that are fixed on their respective pedestals (40a) and (40b), describe a distance (d1) between the innermost part of the peripheral flange (34) of the support tower (30a) and the innermost part of the peripheral flange (33) of the support tower (30b), see figure .10d must be the same as the length (d2) of the protective screen (10), see figure .4c;

[114] Step 4 Positioning for mounting the support towers (30a) and (30b) next to their respective pedestals (40), where the rear part of the extruded “U” profile (31) of each is positioned in front of the rear faces of the beams (42) of the respective pedestals (40), see figures .10a and .10b;

[115] Step 5 Fixing the support towers (30a) and (30b) to their respective pedestals (40), by through-mounting the adjustment pins (43) through the holes of Petition 870250071470, dated 08 / 13 / 2025, p. 28 / 35 24 / 26 adjustment (32) defined on the rear face of the extruded “U” profile (31) of the support towers (30a) and (30b); see figures . 10c and . 10d, where the height adjustment previously specified for the protective screen (10) is defined in this step;

[116] Step 6 Pre-positioning of the protective screen (10) with its lateral ends aligned with the peripheral flange (34) of the support tower (30a) and with the peripheral flange (33) of the support tower (30b), see figure .10e;

[117] Step 7 Coupling the side edges (10a) and (10b) of the protective screen (10) together with the claws (35) and (36) of the support tower (30a), see figures .10e, .10f, .10g and .10h;

[118] Step 8 Overlap of the fastening element (20) mounted on the protective screen (10) over the key locking mechanism (X), see figures .10e and .10f, where the nut (22) is aligned with the opening (X2) and the male threaded segment of the screw (21) penetrates the interior of the box (X1) and interacts with the conical profile (Y2) until it is aligned with the female threaded channel (Y3), see figure .10i;

[119] Step 9 Locking the protective screen (10) in the locking mechanism with key (X), by turning the screw (21) clockwise and consequently coupling the male threaded segment with the female threaded channel (Y3), see figure .10j, thus obtaining the improved protective device (Di); and

[120] Step 10 Assembly of the subsequent device (Di1), based on the pedestal (40) + support tower (30b) assembly of the device (Di), a second pedestal (40) + support tower (30c) assembly is mounted, see figures .11a and .11b. Petition 870250071470, dated 08 / 13 / 2025, page 29 / 35 25 / 26 repeating steps 1 to 9.

[121] c. Unlocking procedure removal of the protective screen (10) from the protective device (Di)

[122] You must follow the sequential steps:

[123] Step 1 Unlocking the protective screen (10) of the locking mechanism with key (X), by turning the screw (21) counterclockwise, consequently decoupling the male threaded segment of the screw (21) from the female threaded channel (Y3), in the opposite situation to that illustrated in figure 10j, returning to the condition of figure 10i; and

[124] Step 2 Disconnecting the side edges (10a) and (10b) of the protective screen (10) next to the claws (35) and (36) of the support tower (30a) with its release for maintenance and / or replacement.

[125] The choice of the preferred embodiment of the invention patent claimed herein, described in this detailed section, is provided by way of example only. Alterations, modifications and variations may be made to any other embodiments of the protective device (Di), alterations which may be devised by those skilled in the art without, however, departing from the object disclosed in the present patent application, which is exclusively defined by the appended claims.

[126] In this context, it is also pertinent to present the assembly of a second protection module, superimposed on the first protection module, highlighting the perfect positioning between the protection screens (10), without leaving any empty space between them, inhibiting any attempt to overcome this barrier. Petition 870250071470, dated 08 / 13 / 2025, pages 30 / 35 26 / 26 protection.

[127] For this purpose, support towers (30a') and (30b') are assembled on top of the respective support towers (30a) and (30b) previously assembled, where for each one the lower end segment of the extruded “U” profile (31) of the support towers (30a') and (30b') is fixed

[128] in the rear position of the upper end of the extruded “U” profile (31) of the support towers (30a) and (30b), in order to then mount and fix the respective support screen (10') which is superimposed on the support screen (10) of the previously assembled module, as illustrated in figures .12a, .12b and .12c.

[129] It is verified from what has been described and illustrated that the “ASSEMBLY, LOCKING, UNLOCKING AND DISASSEMBLY SYSTEM OF SCREEN UNITS THAT INTEGRATE A PROTECTION DEVICE APPLIED TO THE SIDE(S) OF EQUIPMENT OF THE RAW MATERIAL CONVEYOR BELT TYPE, ITS ASSEMBLY PROCEDURE, ITS ASSEMBLY AND LOCKING PROCEDURE AND UNLOCKING AND DISASSEMBLY PROCEDURE OF THE PROTECTION SCREEN now claimed falls within the norms governing the patent of invention under the Industrial Property Law, deserving, as a consequence of what has been stated, the respective privilege. Petition 870250071470, dated 08 / 13 / 2025, pp. 31 / 35

Claims

1 / 4 CLAIMS 1) ASSEMBLY SYSTEM FOR PROTECTIVE SCREEN UNITS INTEGRATING A PROTECTIVE DEVICE APPLIED TO THE SIDE(S) OF EQUIPMENT SUCH AS RAW MATERIAL CONVEYOR BELTS where a module thereof has a technological basis formed by a pair of support towers (30), each formed by an extruded “U” profile (31), provided with a plurality of adjustment holes (32) delimited by peripheral flanges (33) and (34), spaced apart and duly fixed with adjustable height by respective pedestals (40), the space between which has a protective screen (10) fixed, formed of a typically rectangular structure (11), provided with a plurality of perforated elements (12), the system being characterized by the protective screen (10) having defined approximately the vertical perimeter of one of its ends has a hole (13),which receives the through-mounting of a screw (21) fixed to the rear of the protective screen (10) by a nut (22) that integrates the fastening element (20) where the pair of support towers (30a) and (30b) have defined on the peripheral flange (34) a pair of claws (35) and (36), the claw (35) having an inverted “L” profile, defined at the upper end of the peripheral flange (34) and the second claw (36) having an “L” profile, defined in the intermediate portion of the peripheral flange (34), both claws (35) and (36) being spaced slightly greater than the height of the protective screen (10) and receiving the lateral edges (10s) and (10b) and on the peripheral flange (33) of these support towers (30a) and (30b) a locking mechanism with a key (X) is defined which receives the threading of the screw Petition 870250006802, of 01 / 28 / 2025, p. 32 / 68 2 / 4 (21) previously fixed in the hole (13) of the protective screen (10);, 2) A SYSTEM FOR MOUNTING PROTECTIVE SCREEN UNITS THAT INTEGRATE A PROTECTIVE DEVICE APPLIED TO THE SIDE(S) OF RAW MATERIAL CONVEYOR BELT EQUIPMENT according to claim 1 wherein the protective screen (10) is characterized by being made of metallic material or polymeric material; 3) LOCKING SYSTEM FOR PROTECTIVE SCREEN UNITS INTEGRATING where the key locking mechanism (X) of claim 1 is characterized by being composed of a square box (X1) provided with an opening (X2) in its lid, whose diameter is slightly larger than the diameter of the nut (22) of the fastening element (20), and whose interior of this square box (X1) has a defined special square nut (Y), provided with a body (Y1) of dimensions slightly smaller than the internal dimensions of the square box (X1), whose upper part has a defined conical profile (Y2) that invites the positioning and alignment of the male thread sector of the fastening screw (21), and at the end of this conical profile (Y2) is developed a female threaded channel (Y3) that receives the threading of the male thread sector of the fastening screw (21); 4) ASSEMBLY AND LOCKING PROCEDURE of the assembly and locking system of claim 1 characterized by the sequential steps: - Step 1 Through assembly of the screw component (21) of the fastening element (20) through the front part of the hole (13) of the protective screen (10); - Step 2 Fixing of the screw component (21) to the rear part of the protective screen (10), with the application of the nut (22); - Step 3 Assembly of the pedestals (40a) and (40b), positioned apart from each other, at a distance (h) that ensures that the pair of support towers (30a) and (30b) that are fixed on their respective pedestals (40a) and (40b), describe a distance (d1) between the innermost part of the peripheral flange (34) of the support tower (30a) and the innermost part of the peripheral flange (33) of the support tower (30b), must be the same as the length (d2) of the protective screen (10);- Step 4 Positioning for mounting the support towers (30a) and (30b) next to their respective pedestals (40), where the rear part of the extruded “U” profile (31) of each is positioned in front of the rear faces of the beams (42) of the respective pedestals (40); - Step 5 Fixing the pair of support towers (30a) and (30b) next to their respective pedestals (40), by through-mounting the adjustment pins (43) through the adjustment holes (32) defined on the rear face of the extruded “U” profile (31) of the support towers (30a) and (30b); where in this step the height adjustment previously specified for the protective screen (10) is defined; - Step 6 Pre-positioning of the protective screen (10) with the side ends aligned with the peripheral flange (34) of the support tower (30a) and with the peripheral flange (33) of the support tower respectively;- Step 7 Coupling of the side edges (10a) and (10b) of the protective screen (10) together with the claws (35) and (36) of the support tower (30a); - Step 8 Overlapping of the fastening element (20) mounted on the protective screen (10) over the locking mechanism with key (X), where the nut (22) is aligned with the opening (X2) and the male threaded segment of the screw (21) penetrates the inside of the box (X1) and interacts with the conical profile (Y2) until it is aligned with the female threaded channel (Y3); - Step 9 Locking the protective screen (10) in the locking mechanism with key (X), by turning the screw (21) clockwise, with consequent coupling of the male threaded segment with the female threaded channel (Y3), thus obtaining the improved protective device (Di);e - Step 10 Assembly of the subsequent device (Di1), based on the pedestal (40) + support tower (30b) assembly of the device (Di), a second pedestal (40) + support tower (30c) assembly is assembled, repeating steps 1 to 9; and; 5) PROCEDURE FOR UNLOCKING AND DISASSEMBLING THE PROTECTIVE SCREEN of the mounting and locking system of claim 1 characterized by the sequential steps: - Step 1 Unlocking the protective screen (10) from the locking mechanism with key (X) by turning the screw (21) counterclockwise, resulting in the decoupling of the male threaded segment of the screw (21) from the female threaded channel (Y3); and - Step 2 Decoupling the side edges (10a) and (10b) of the protective screen (10) from the claws (35) and (36) of the support tower (30a), releasing it for maintenance and / or replacement. Petition 870250006802, dated 01 / 28 / 2025, page 35 / 68

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