Construction arrangement applied to polyethylene sheet for installation as a lining for tipper truck bodies.

Description

/ 6 Construction arrangement applied to polyethylene sheet for installation as a lining for tipper truck bodies. The following descriptive report of the proposed utility model patent refers to a constructive arrangement applied to a polyethylene sheet for installation as a lining for tipper truck beds, comprising a functional improvement developed through the application of a high-density polyethylene sheet installed on the floor of the truck bed, preventing the transported material from being retained on the floor. PROBLEM In our country, the predominant mode of transport is road transport, largely carried out by dump trucks. These trucks transport various materials, especially bulk solids such as: soil, sand, limestone, gypsum, ore, sugar, grains, gravel, fertilizers, etc. - A large portion of these materials adheres to the truck bed, creating a high risk of tipping over during unloading, as the material does not settle, or only partially settles, throwing the truck bed off its center of gravity. State of the art. Polyethylene is one of the most widely used thermoplastics for manufacturing products across a wide range of sectors. Its regular and stable molecular structure allows for the production of products with superior characteristics compared to other plastics. Polyethylene is a polymer with the simplest chemical structure, obtained through the polymerization of ethene. Because it consists only of hydrogen and carbon, the product is non-toxic and has high chemical resistance. High-density polyethylene has excellent mechanical properties. Petition 870250062999, dated 07 / 22 / 2025, page 12 / 18 / 6 physical, hydraulic and chemical properties, and due to its high molecular weight, it is suitable for the manufacture of pipes, sheets, bottles, flexible packaging, household utensils, automotive parts, sewage collection networks and other segments that allow products greater durability, flexibility and lightness. - Of course, applications of polyethylene-based panels for various purposes are already known in what we call the state of the art. Research conducted using the INPI (Brazilian National Institute of Industrial Property) database revealed the existence of several such applications, which we will list below. - The patent application was filed on 04 / 03 / 2013 BR 10 2013 005177 2, entitled COMPOSITION AND PROCESS FOR OBTAINING FLAME-RETARDANT PHOTOLUMINESCENT POLYETHYLENE SHEETS AND THE PRODUCT THUS OBTAINED, belonging to the thermoplastic technical sector, more particularly a composition and process for obtaining flame-retardant photoluminescent HDPE sheets, mainly for use in the manufacture of safety signage, through which practical, efficient and financial results are obtained. The flame-retardant photoluminescent polyethylene sheet is produced using photoluminescent pigment and flame-retardant agent mixed with a vehicle resin. - On March 11, 2008, patent application MU 8800847-9 was filed, entitled "ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE SHEET (UHMW-PE) ADHESIVED WITH DOUBLE-SIDED TAPE WITH ACRYLIC GLUE," which is a utility model patent for an ultra-high molecular weight polyethylene sheet adhesived with double-sided tape with acrylic glue of various thicknesses. It consists of a sheet of ultra-high molecular weight polyethylene (UHMW-PE) known in the prior art, with a double-sided tape with acrylic foam glue applied to one side and across its entire surface, and the other side of the sheet... Petition 870250062999, dated 07 / 22 / 2025, page 13 / 18 / 6 double-sided tape, which will be used to fix the sheet to the solid surface, and this new design of the ultra-high molecular weight polyethylene (UHMW-PE) sheet bonded with double-sided tape with acrylic glue in various thicknesses, solves the aforementioned inconveniences, simplifying the process of fixing the sheet to solid surfaces, that is, with the sheet already bonded with double-sided tape, it is glued directly to the solid surface with simple manual pressure, reducing costs and increasing productivity. - The patent application was filed on April 5, 2019. BR 10 2019 007007 2, referred to as PROFILED SHEET, FLOOR AND FLOOR MANUFACTURING PROCESS, wherein the present invention describes a floor comprising at least one structural element, a fastening element and profiled sheets, which comprise an interlocking geometry that allows them to be joined together. The present invention is situated in the fields of automotive component manufacturing and semi-trailer manufacturing, without limiting the scope of application of the present invention. Finally, on April 6, 2020, patent BR 10 2020 006913 6, entitled "PROFILED SHEET, FLOOR AND FLOOR MANUFACTURING PROCESS," was filed, where the present invention describes a floor comprising at least one structural element, a fastening element, and profiled sheets, which comprise an interlocking geometry that allows them to be joined together. The present invention falls within the fields of automotive component manufacturing and semi-trailer manufacturing, without limiting the scope of application of the present invention. That being said, no applied technology is known or identified that conflicts with the claims and allegations that will be made in this report. Petition 870250062999, dated 07 / 22 / 2025, p. 14 / 18 / 6 PROPOSED DEVELOPMENT Due to considerations relevant to the state of the art, the subject of this application is the development of a constructive arrangement applied to a polyethylene sheet for installation as a lining for tipper truck beds, installed on the bed floor, preventing the transported material from being retained on the floor. - This refers to a post-consumer recycled high-density polyethylene sheet, a copolymer specifically designed for the sheet metal industry, with high impact and tensile strength, as well as good rigidity and elasticity. It shows promising usability in applications requiring abrasion resistance and good toughness. - The sheet is recovered through a process of grinding, washing, heating, mixing, and extrusion. Its composition is a blend of HDPE with an IF between 2 and 8 g / 10 min, and MDPE with an IF between 2 and 6 g / 10 min. The amount of the mixture varies according to the IF and density of each material. *190°C / 10KG. DESCRIPTION OF THE FIGURES - The characterization of the utility model patent application now proposed is made by means of drawings of the constructive arrangement applied to a polyethylene sheet for installation as a lining for tipper truck beds, in such a way that the object can be easily reproduced by appropriate technique, allowing full characterization of the functionality of the object claimed. Based on the elaborated figures, which express the best or preferred way to realize the product now conceived, the descriptive part of the report is based on a detailed and consecutive numbering, where this clarifies aspects that may be implied by the adopted representation, of Petition 870250062999, dated 07 / 22 / 2025, page 15 / 18 / 6 in order to clearly determine the protection now being sought. These figures are for illustrative purposes only and may vary, provided they do not deviate from the principle initially claimed. In this case, we have to: Figure 1 presents a perspective view of the sample of the proposed utility model. Figure 2 shows a close-up perspective view of the proposed utility model applied to the bottom of the truck bed, highlighting the reinforcement applied. Figure 3 shows a close-up perspective view of the proposed utility model applied to the bottom of the truck bed. Figure 4 presents a new close-up perspective view of the proposed utility model applied to the bottom of the truck bed. ALLEGATIONS - Constructive arrangement applied to polyethylene sheet for installation as a lining for tipper truck bodies, consisting fundamentally of a high-density polyethylene sheet (1) composed of a blend of HDPE with *IF between 2 and 8 g / 10 min, MDPE with *IF between 2 and 6 g / 10 min, which is fixed to the truck body by means of washers and nuts on the bolts (2) installed at the end next to the ground, at the bottom of the truck body. - A constructive arrangement applied to polyethylene sheeting for installation as a lining for tipper truck beds. The application process begins with reinforcing the lining on the part that will be fixed to the truck bed, ensuring that it will not detach during tipping. This reinforcement consists of welding a second polyethylene sheet over the first. Subsequently, the bolts are welded to the truck bed floor. Petition 870250062999, dated 07 / 22 / 2025, page 16 / 18 / 6 Next, after welding the screws, the covering is positioned on the floor so that markings can be made on where the screws will go, and then the necessary holes can be drilled with a drill. - A constructive arrangement applied to a polyethylene sheet for installation as a lining for tipper truck beds. The sheet application process continues with the fixing of the lining using washers and nuts. Finally, in order to optimize material flow, a finishing touch is developed, consisting of a cutout of a polyethylene sheet placed over the screws to cover them and prevent material retention. This finishing touch is fixed to the bed of the tipper and extruded welded to the polyethylene lining, and its dimensions may vary according to the size and model of the tipper. *** Petition 870250062999, dated 07 / 22 / 2025, page 17 / 18

Claims

Claim 1 - CONSTRUCTIONAL ARRANGEMENT APPLIED TO POLYETHYLENE SHEET FOR INSTALLATION AS A LINING FOR DUMP TRUCKS, consisting of a post-consumer recovered high-density polyethylene sheet, copolymer, specific for the sheet industry, with high impact and tensile strength, as well as good rigidity and elasticity, promising usability in applications that demand abrasion resistance, in addition to good toughness; recovered through the process of grinding, washing, heating, mixing and extrusion, characterized by a high-density polyethylene sheet (1) composed of a blend of HDPE with *IF between 2 and 8 g / 10 min, MDPE with *IF between 2 and 6 g / 10 min, which is fixed to the dump truck by means of washers and nuts on the bolts (2) installed at the end next to the ground, at the bottom of the dump truck. Petition 870250062999, dated 07 / 22 / 2025, page 6 / 18

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