WO2022104444A1

WO2022104444A1 - Modular cargo container for a tilting trailer, panel for a cargo container structure and manufacturing and assembly method

Info

Publication number: WO2022104444A1
Application number: PCT/BR2021/050502
Authority: WO
Inventors: Ricardo Rech GUARDA; Rodrigo BERNARDI
Original assignee: Randon S.A. Implementos E Participações
Priority date: 2020-11-17
Filing date: 2021-11-17
Publication date: 2022-05-27
Also published as: BR102020023437A2; AR124082A1

Abstract

The present invention relates to a modular cargo container for tilting trailers, panels for a cargo container structure and a method for manufacturing and assembling a cargo container. The present invention specifically comprises a cargo container formed by at least one right-hand side wall and one left-hand side wall associated with the floor of the vehicle, wherein the side walls and the floor are manufactured from extruded metal profiles arranged horizontally relative to the longitudinal length of the cargo container, interlocked by means of at least one interlocking geometry and fastened by means of at least one adhesive material, making it possible to form a lightweight cargo container having improved mechanical properties, with a uniform, precise structure, without weld spots, thus reducing the manufacturing time and tare weight of the vehicle, and also facilitating the individual maintenance of parts. The present invention pertains to the field of mechanical engineering, and specifically to the field of structures for tilting trailers.

Description

Invention Patent Descriptive Report

MODULAR LOAD BOX FOR ROAD IMPLEMENT TILTING, PANEL FOR STRUCTURE OF LOAD BOXES AND PROCESS OF

MANUFACTURING AND ASSEMBLY

Field of Invention

[0001] The present invention describes a modular cargo box of road implements of the tipping type, panels for the structure of cargo boxes and a process for manufacturing and assembling a cargo box. Specifically, the present invention comprises a cargo box formed at least by a right side wall and a left side wall associated with the floor of the vehicle, the side walls and the floor being manufactured in extruded metal profiles and arranged horizontally with respect to the length. longitudinal section of the cargo box, fitted using at least one fitting geometry and fixed using at least one adhesive material, allowing to form a light cargo box with improved mechanical properties, with a uniform and precise structure, free from weld points , providing a reduction in manufacturing time and vehicle tare, as well as easy maintenance of individual parts. The present invention is located in the fields of mechanical engineering, focused on the area of structures applied to tipper-type road implements.

Background of the Invention

[0002] Cargo boxes used in tipper-type road implements are built from steel plates joined by welding. The steel plates used have considerable thickness, which makes these cargo boxes heavier, reducing the maximum load that the vehicle can carry.

[0003] Also, the fixing between all steel plates by means of welding heats up the cargo box parts, which can cause imperfections and deformations along the structure, impairing the pattern and uniformity of the geometry of the parts. In addition, fixing the parts through welding requires specialized machinery and labor to carry out the weld, which also increases the production costs of the parts and also makes maintenance difficult.

[0004] Still, some cargo boxes use aluminum plates positioned vertically in relation to the longitudinal length of the cargo box, fixed to each other by means of welding and fixed to the box structure through welded steel profiles, which also makes it difficult to maintenance of parts damages the structure of parts and increases manufacturing and maintenance costs.

[0005] In the search for the state of the art in scientific and patent literature, the following documents were found that deal with the subject:

[0006] The document US2007033899 presents extruded panels formed by aluminum alloys and a method for manufacturing the panels. The document US2007033899 cites that, in some embodiments, said panels can be applied to the roof, floor and doors of vehicles. The solution revealed in that document focuses only on the geometry of the cross section of panels, without presenting any solution related to the means of fixing between the panels in order to allow the formation of walls of cargo boxes of a commercial vehicle, as proposed by the present invention.

[0007] The document WO0174649A1 presents a solution for floors of commercial vehicles, such as road implements, using extruded aluminum profiles or aluminum alloys, being fixed by fittings in the form of hooks. The solution disclosed in that document does not present the possibility of total construction of a cargo box by associating extruded aluminum profiles, only for the formation of the floor. [0008] Document ES2604162B2 discloses an implement bodywork formed by longitudinal panels fixed by vertical beams along the sides of the bodywork, which are welded to the walls for fixing the longitudinal panels. The present invention overcomes the technical drawbacks of document ES2604162B2, since, mainly, among other factors, it allows eliminating the use of vertical beams welded to the walls for fixing the longitudinal panels.

[0009] The document WO2015039238 discloses a solution for road implements, in which the external structure of the vehicle (side, front and rear walls) uses extruded aluminum panels with quadrangular cross-section geometry in combination with the use of a motorized mobile panel in the inside the cargo box, which acts as an internal moving part, pushing the transported cargo out of the cargo box at the time of unloading. The cargo box structure is intended to support this motorized mobile panel structure, differing from the present invention mainly in its geometry, its application and the final technical effects achieved.

[0010] Thus, no documents were found anticipating or suggesting the teachings of the present invention, so that the solution proposed here has novelty and inventive step compared to the state of the art.

[0011] With this, it is clear the demand for optimized manufacturing and maintenance cargo boxes, which have a reduced tare in relation to steel cargo boxes, allowing to increase the transported load, and reduction of the empty vehicle weight, bringing benefits economic and environmental, such as reducing fuel consumption.

Summary of the Invention

[0012] In this way, the present invention solves the problems of the state of the art from a cargo box for road implements of the tilting type segmented into modules, comprising side walls (3) and floor (2) formed by extruded metal profiles preferably in aluminium, arranged horizontally in relation to the length of the cargo box, the side walls (3) of the cargo box being formed by said profiles associated with each other by at least one fitting geometry and , alternatively, also fixed by at least one adhesive material, allowing to eliminate the need for welding in the formation of the side walls (3). The use of extruded profiles in metallic materials such as aluminum for the manufacture of the side walls (3) and floor (2) makes the structure of the cargo box lighter when compared to structures made of welded steel metal plates, which allows increase the maximum total load the vehicle can carry. In this way, the cargo box of the present invention makes it possible to significantly reduce the use of welding for the manufacture of a commercial vehicle cargo box, providing a cargo box with uniform parts, with facilitated and optimized manufacturing and maintenance processes, as well as a cleaner manufacturing process by reducing the generation of polluting gases and waste generated by welding.

[0013] In a first object, the present invention presents a modular cargo box of a tipping type road implement formed by the association of at least one right side wall (3) and a left side wall (3) to the floor (2) of the tilting road implement, the side walls (3) and floor (2) being made of extruded metal profiles, in which: each side wall (3) is formed by a combination of side wall profiles (3.1), arranged longitudinally in the direction the length of the tilting road implement, the side wall profiles (3.1) being arranged one above the other; and the floor (2) is formed by extruded floor profiles (2.1), arranged longitudinally along the length of the tilting road implement and laterally associated with each other, forming said floor (2), and associated with a structural profile (2.2) , transverse to the floor profiles (2.1), arranged below said floor (2).

[0014] In a second object, the present invention presents a panel for load box structure of tipper-type cargo transport vehicles comprising at least one side wall (3) formed by a combination of side wall profiles (3.1), arranged longitudinally along the length of the vehicle, the profiles being side wall (3.1) arranged one above the other and comprising, at their vertical ends, a cavity and/or a fitting protuberance, so that the association between extruded side wall profiles (3.1) occurs through the association between protuberances and cavities of separate extruded sidewall profiles (3.1) in combination with the use of an adhesive material between the sidewall profiles (3.1).

[0015] In a third object, the present invention presents a process of manufacturing and assembling a tipping-type road implement cargo box, said cargo box formed by side walls (3) associated with a floor (2) of the implement tilting roadway, the side walls (3) and the floor (2) being manufactured in extruded metal profiles, said manufacturing and assembly process comprising the steps of: a. extrusion of a sidewall profile (3.1) in metallic material, comprising, at its vertical ends, a cavity and/or a fitting protuberance, so that the association between extruded sidewall profiles (3.1) occurs through the association between protrusions and cavities of distinct sidewall extruded profiles (3.1); B. overlapping of side wall profiles (3.1) arranged longitudinally towards the tipping road implement and gluing of the profiles (3.1), forming a side wall (3); ç. extrusion of a floor profile (2.1), comprising, at its horizontal ends, a cavity and/or a socket protrusion; d. layout of the extruded floor profiles (2.1) in the longitudinal direction of the tilting road implement and association between extruded floor profiles (2.1 ) by the association between protrusions and cavities of different extruded floor profiles (2.1 ) and joined by a structural adhesive between the protuberances and cavities, arranged laterally to each other and on at least one structural profile (2.2) , transverse to the longitudinal direction of the profiles (2.1), in which each extruded floor profile (2.1) and the structural profile (2.2) comprise an association cavity of modular fastening elements for association between the structural profile (2.2) and the extruded profiles floor (2.1 ); and. extrusion of at least one corner profile (1 ); and f. association between the floor (2) and the side wall profiles (3) by means of the corner profiles (1 ).

[0016] These and other objects of the invention will be immediately appreciated by those skilled in the art and will be described in detail below.

Brief Description of Figures

[0017] The following figures are presented:

[0018] Figure 1 shows an embodiment of a modular cargo box of the present invention applied to a tipping road implement, in which said tipping cargo box is formed by the side walls (3) and the floor (2) of the present invention .

[0019] Figure 2 shows a perspective sectional view of the cargo box of the present invention illustrated in Figure 1 .

[0020] Figure 3 shows an embodiment of a front view of the section illustrated by figure 2, where it is possible to see the cross section of the side wall profiles (3.1), which are associated to form the side walls (3), as well as the cross section of the floor profiles (2.1) that are joined together to form the floor (2), with the side walls (3) and the floor (2) joined by corner profiles (1). [0021] Figure 4 highlights an embodiment of the association of a side wall profile (3.1) to a corner profile (1) and of a floor profile (2.1) to said corner profile (1).

[0022] Figure 5 shows an embodiment of a side wall (3) of the present invention.

[0023] Figure 6 shows an embodiment of side wall profiles (3.1) of the present invention, illustrating the interleaved association between straight profiles (3.1 a) and concave profiles (3.1 b) to form the side wall (3).

[0024] Figure 7 shows an embodiment of a corner profile (1) of the present invention.

[0025] Figure 8 shows another embodiment of a corner profile (1) of the present invention, this being a view of the corner profile (1) mirrored to the corner profile view (1) illustrated by Figure 7.

[0026] Figure 9 shows an embodiment of a floor profile (2.1) of the present invention.

[0027] Figure 10 shows a bottom view of the floor (2) of the present invention, illustrating the structural profiles (2.2) transverse to the floor profiles (2.1), as well as the corner profiles (1) associated with the ends of the floor (two).

Detailed Description of the Invention

[0028] The descriptions that follow are presented by way of example and do not limit the scope of the invention and will make the object of this patent application more clearly understood.

[0029] The present invention describes a cargo box for road implements of the tilting model segmented into modules, being formed by at least two side walls (3), one on each side of a floor (2), formed by extruded metal profiles arranged horizontally in relation to the length of the cargo box, the side walls (3) of the cargo box being formed by said metal profiles linked together by at least one fitting geometry and, alternatively, also fixed by at least one adhesive material and/or by modular fastening elements, such as screws and nuts, allowing to eliminate the need for welding in the formation of the side walls (3) , making assembly and maintenance quicker and easier.

[0030] For the purposes of the present invention, modular fastening elements are any detachable fastening means, but which promote a firm association between components such as, for the purposes of exemplification, nuts and bolts.

[0031] The use of extruded profiles in metallic materials such as aluminum for the manufacture of the side walls (3) and floor (2) makes the structure of the cargo box lighter when compared to structures made of steel metal plates, welded, which makes it possible to increase the maximum total load that the vehicle can carry. In this way, the cargo box of the present invention makes it possible to significantly reduce the use of welding for the manufacture of a commercial vehicle cargo box, providing a cargo box with uniform parts, with facilitated and optimized manufacturing and maintenance processes, as well as a cleaner manufacturing process by reducing the generation of polluting gases and waste generated by welding.

[0032] In a first object, the present invention presents a modular cargo box of a tipping type road implement formed by the association of at least one right side wall (3) and a left side wall (3) to the floor (2) of the tilting road implement, with the side walls (3) and floor (2) made of extruded metal profiles. [0033] Each sidewall (3) of the present invention is formed by a combination of sidewall profiles (3.1), arranged longitudinally along the length of the tilting road implement, the sidewall profiles (3.1) being arranged one above the other. In one embodiment, the sidewall profiles (3.1 ) are made of aluminum, which provides an anti-corrosion and inert structure to the weather, more resistant and with lower weight when compared to state-of-the-art steel profile structures, in addition to not requiring painting, reducing maintenance and manufacturing costs.

[0034] In one embodiment, the sidewall profile (3.1) comprises, at its vertical ends, a cavity and/or a fitting protuberance, so that the association between sidewall profiles (3.1) occurs through the association between protrusions and cavities of side wall profiles

(3.1) distinct, joined through a structural adhesive material. In one embodiment, each sidewall profile (3.1) comprises at least one cavity at its upper end and at least one protrusion at its lower end, the upper cavity of the sidewall profiles being

(3.1) receives the lower protrusion of a sidewall profile (3.1) arranged above it, which are joined by structural adhesive, or alternatively, to the sidewall profile (3.1) arranged higher on the sidewall (3) , it receives a bulge from another component of the cargo box, be it structural or finishing. In the same sense, the lower protrusion of each sidewall profile (3.1) is associated with the cavity of the sidewall profile (3.1) just below it, which are joined by structural adhesive, or, alternatively, to the sidewall profile. (3.1) arranged further down the side wall (3), the lower protuberance is associated with a component of the cargo box that makes the association of the side wall (3) to the floor (2). In one embodiment, the association between the side wall (3) and the floor is provided by a corner profile (1), which receives the lower protrusion of a side wall profile (3.1) and are joined by a structural adhesive.

[0035] In one embodiment, the association between sidewall profiles

(3.1 ) is a combination of cavities and protrusions associated with the use of an adhesive material disposed between the side wall profiles

(3.1 ). In one embodiment, the adhesive material for association between the side wall profiles (3.1) of the present invention comprises a liquid, solid or pasty material, which prevents the detachment of said wall profiles. (3.1 ), in addition to sealing between said side wall profiles

(3.1), making the side wall (3) of the present invention watertight. In one embodiment, the adhesive material is compatible with the metallic material used in the manufacture of the sidewall profiles (3.1). In one embodiment, the sidewall profiles (3.1) are made of aluminum and the adhesive material is a material suitable for gluing aluminum.

[0036] In one embodiment, the association between sidewall profiles

(3.1) is a combination of modular fastening elements arranged in the cavities and/or protrusions of the side wall profiles.

[0037] In one embodiment, the side wall profiles (3.1) comprise an internal face to the cargo box and an external face to the cargo box, these faces being spaced by interleaved beams, which form regions of void inside the profiles of sidewall (3.1) as illustrated by figures 2 to 4 and 6. In one embodiment, the inner and outer faces of the sidewall profile (3.1) are straight and vertical, forming a straight profile (3.1a). In another embodiment, the inner and outer faces of the sidewall profile

(3.1 ) are curved with the concavity facing away from the cargo box, forming a concave profile (3.1 b). In one embodiment, the side walls (3) of the cargo box of the present invention are formed by side wall profiles (3.1) sandwiched between straight profiles (3.1 a) and concave profiles (3.1 b), as illustrated in figure 6.

[0038] The formation of the side wall (3) of the present invention by side wall profiles (3.1) interspersed between straight profiles (3.1 a) and concave profiles (3.1 b) brings to the side wall (3) of the present invention a gain in mechanical resistance, since the use of interleaved profiles constitutes a geometry with a higher moment of inertia, when compared to the association of only straight profiles (3.1 a) or only concave profiles (3.1 b). The interspersed use of straight geometry profiles (3.1 a) and concave geometry profiles (3.1 b) for the formation of the side wall (3) assists in the flow of the load during the tipping/unloading operation of the tipping road implement, which helps to avoid tipping accidents, very common in tipper trailers and semi-trailers.

[0039] In this way, the present invention allows the construction of side walls (3) for cargo transport vehicles, such as tipping road implements, the side wall (3) being free from any welding point, which provides for its manufacture the reduction of pollutant gas emission or generation of residues caused by the welding process, as well as allowing easy assembly, with a uniform structure and free of deformations caused by the welding.

[0040] The floor (2) is formed by extruded floor profiles (2.1), arranged longitudinally along the length of the tilting road implement and laterally associated with each other, forming the said floor (2), and associated with a structural profile ( 2.2), transversal to the floor profiles (2.1), arranged below the said floor (2). In one embodiment, the floor profiles (2.1 ) are made of aluminum, which provides an anti-corrosion and inert structure to the weather, more resistant and with less weight, when compared to the structures of profiles made of steel in the state of the art, in addition to not needing painting, reducing maintenance and manufacturing costs.

[0041] In one embodiment, each horizontal - lateral - end of a floor profile (2.1) comprises a recess or a socket protrusion. In one embodiment, a first horizontal end of the floor profile (2.1) comprises a protrusion, which comes into contact with the cavity of another floor profile (2.1) lateral to it and are joined by a structural adhesive material. In the same direction, at the horizontal end opposite the protuberance, the floor profile (2.1) comprises a cavity, which comes into contact with the protuberance of another floor profile (2.1) lateral to it and are joined by a structural adhesive material, of so that the association between floor profiles (2.1 ) is given by the association between protuberances and cavities of different floor profiles (2.1 ), arranged laterally to each other, and joined by structural adhesive material. For the horizontal - lateral - ends of the floor (2), the floor profiles (2.1 ) of the ends are not associated with a subsequent floor profile (2.1 ), but with an element of association with the side wall (3) of the vehicle. In one embodiment, the association between the floor (2) and each side wall (3) is provided by a corner profile (1).

[0042] In one embodiment, the association between floor profiles (2.1) occurs by a combination of cavities and protrusions associated with the use of an adhesive material disposed between the floor profiles (2.1). In one embodiment, the adhesive material for association between the floor profiles (2.1) of the present invention comprises a liquid, solid or pasty material, which prevents the detachment of said floor profiles (2.1), in addition to sealing between the said floor profiles (2.1), bringing watertightness to the floor (2) of the present invention. In one embodiment, the adhesive material is compatible with the metallic material used in the manufacture of the floor profiles (2.1). In one embodiment, the floor profiles (2.1) are made of aluminum and the adhesive material is a material suitable for gluing aluminum.

[0043] In one embodiment, the floor profiles (2.1 ) are arranged over at least one structural profile (2.2) of the floor (2). In one embodiment, the floor profiles (2.1) are arranged on a plurality of structural profiles (2.2) of the floor (2), the structural profiles (2.2) being spaced apart. In one embodiment, the structural profiles (2.2) are made of high strength steel.

[0044] Each floor profile (2.1) and each structural profile (2.2) comprise a plurality of fixing cavity for association of modular fixing elements for association between the structural profile (2.2) and the floor profiles (2.1). In one embodiment, the floor profiles (2.1) and the structural profiles (2.2) comprise holes through which it is possible to pass the thread of a screw, being a nut or the head of the screw housed in the inside each cavity for fixing the floor profiles (2.1) and/or the structural profiles (2.2).

[0045] In one embodiment, each structural profile (2.2) comprises an "omega"-shaped cross section, resembling a "U" with outward-facing tabs, said tabs being the region provided with drilling for association with the profiles floor (2.1 ).

[0046] In one embodiment, the bottom of each side wall (3) is associated with the floor (2) by a corner profile (1), joined through a structural adhesive material to the base of the side wall (3) and associated by modular fixing elements to the structural profile (2.2) of the floor (2).

[0047] In a preferred embodiment, the corner profile (1) is made of aluminum. In another embodiment, the corner profile (1) is made of a metal alloy comprising aluminum in its composition. In yet another embodiment, the corner profile (1) is made of polymeric materials such as engineering plastic. In yet another embodiment, the corner profile (1) is made of composite materials.

[0048] In one embodiment, the corner profile (1) comprises: an upper cavity (1.1) assignable to the lower protrusion of a side wall profile (3.1), which can be glued in addition to being fitted; a horizontal extension (1.2) provided with housing cavities for modular fastening elements for association with the structural profile (2.2); and an external vertical face (1 .3), which extends from the top cavity (1 .1 ) to the bottom of a face of the structural profile (2.2), hiding and protecting the corner profile (1 ), the structural profile (2.2) and the associations of the corner profile (1 ) with the floor (2) and the side wall (3). In one embodiment, the cargo box of the present invention comprises two corner profiles (1), being arranged on each side of the floor (2) and comprising mirrored geometry, as illustrated by figures 7 and 8.

[0049] Thus, the base structure of the cargo box of the tipping road implement of the present invention is formed, being basically a floor (2) joined to two side walls (3) by corner profiles (1), said base structure can be used for the production of multiple different models of road implements, through the association of: front and/or rear panels at the ends longitudinal of the structure: doors: roof; or a combination of these.

[0050] In a second object, the present invention presents a panel for load box structure of tipper-type cargo transport vehicles comprising at least one side wall (3) formed by a combination of side wall profiles (3.1) , arranged longitudinally along the length of the vehicle, the sidewall profiles (3.1) being arranged one above the other and comprising, at their vertical ends, a cavity and/or a fitting protuberance, so that the association between extruded profiles sidewall (3.1) is given by the association between protuberances and cavities of different sidewall extruded profiles (3.1) in combination with the use of an adhesive material between the sidewall profiles (3.1).

[0051] The side wall (3) of the present invention can be used for any model of road or rail freight transport vehicle, bringing gains in vehicle tare reduction and ease of maintenance given its modular and weld-free characteristic.

[0052] Each sidewall (3) of the present invention is formed by a combination of sidewall profiles (3.1), arranged longitudinally along the length of the vehicle, the sidewall profiles (3.1) being arranged one above the other and joined by structural adhesive material. In one embodiment, the sidewall profiles (3.1) are made of aluminum, which provides an anti-corrosion and inert structure to the weather, more resistant and with less weight, when compared to the structures made of steel in the state of the art. , in addition to not needing painting, reducing maintenance and manufacturing costs.

[0053] In one embodiment, the side wall profile (3.1) comprises, at its vertical ends, a cavity and/or a socket protrusion, so that the association between side wall profiles (3.1) is given by the association between protuberances and cavities of side wall profiles

(3.1) distinct and joined by structural adhesive. In one embodiment, each sidewall profile (3.1) comprises at least one cavity at its upper end and at least one protrusion at its lower end, the upper cavity of the sidewall profiles (3.1) receiving the lower protrusion of a side wall profile (3.1) arranged above it or, alternatively, for the side wall profile (3.1) arranged higher on the side wall (3), receives a bulge from another component of the cargo box, either structural or finishing . In the same sense, the lower protrusion of each sidewall profile (3.1) is associated with the cavity of the sidewall profile (3.1) just below it or, alternatively, to the sidewall profile (3.1) arranged further down the sidewall (3), the lower protuberance is associated with a component of the cargo box that makes the association of the side wall (3) to the floor (2). In one embodiment, the association between the side wall (3) and the floor is provided by a corner profile (1), which receives the lower protuberance of a side wall profile (3.1).

[0054] In one embodiment, the association between sidewall profiles

(3.1 ). In one embodiment, the adhesive material for association between the sidewall profiles (3.1) of the present invention comprises a liquid, solid or pasty material, which prevents the detachment of said sidewall profiles (3.1), in addition to sealing between said side wall profiles

(3.1), making the side wall (3) of the present invention watertight. In one embodiment, the adhesive material is compatible with the metallic material used in the manufacture of the sidewall profiles (3.1). In one embodiment, the sidewall profiles (3.1) are made of aluminum and the adhesive material is a material suitable for gluing aluminum. [0055] In one embodiment, the association between side wall profiles (3.1) takes place by a combination of modular fixing elements arranged in the cavities and/or protrusions of the side wall profiles.

[0056] In one embodiment, the side wall profiles (3.1) comprise an internal face to the cargo box and an external face to the cargo box, these faces being spaced by interleaved beams, which form regions of void inside the profiles of sidewall (3.1) as illustrated by figures 2 to 4 and 6. In one embodiment, the inner and outer faces of the sidewall profile (3.1) are straight and vertical, forming a straight profile (3.1a). In another embodiment, the inner and outer faces of the sidewall profile (3.1) are curved with the concavity facing away from the cargo box, forming a concave profile (3.1b). In one embodiment, the side walls (3) of the cargo box of the present invention are formed by side wall profiles (3.1) sandwiched between straight profiles (3.1 a) and concave profiles (3.1 b), as illustrated in figure 6.

[0057] The formation of the side wall (3) of the present invention by side wall profiles (3.1) interspersed between straight profiles (3.1 a) and concave profiles (3.1 b) brings to the side wall (3) of the present invention a gain in mechanical resistance, since the use of interleaved profiles constitutes a geometry with a higher moment of inertia, when compared to the association of only straight profiles (3.1 a) or only concave profiles (3.1 b). The interleaved use of straight geometry profiles (3.1 a) and concave geometry profiles (3.1 b) for the formation of the side wall (3) helps in the flow of the load during the tipping/unloading operation of the tipping road implement, which contributes to avoid tipping accidents, very common in tipper trailers and semi-trailers.

[0058] In a third object, the present invention presents a process of manufacturing and assembling a tipping-type road implement cargo box, said cargo box formed by side walls (3) associated with a floor (2) of the implement tipping road, the side walls (3) and floor (2) made of extruded metal profiles, said fabrication and assembly process comprising the steps of: a. extrusion of a sidewall profile (3.1) in metallic material, comprising, at its vertical ends, a cavity and/or a fitting protuberance, so that the association between extruded sidewall profiles (3.1) occurs through the association between protrusions and cavities of distinct sidewall extruded profiles (3.1); B. overlapping of side wall profiles (3.1) arranged longitudinally towards the tipping road implement and gluing of the profiles (3.1), forming a side wall (3); ç. extrusion of a floor profile (2.1), comprising, at its horizontal ends, a cavity and/or a socket protrusion; d. arrangement of extruded floor profiles (2.1) in the longitudinal direction of the tilting road implement and association between extruded floor profiles (2.1) by the association between protrusions and cavities of different extruded floor profiles (2.1) and joined by a structural adhesive between the protrusions and cavities, arranged laterally to each other and on at least one structural profile (2.2), transverse to the longitudinal direction of the profiles (2.1), in which each extruded floor profile (2.1) and the structural profile (2.2) comprise an association cavity of modular fastening elements for association between the structural profile (2.2) and the extruded floor profiles (2.1); and. extrusion of at least one corner profile (1 ); and f. association between the floor (2) and the side wall profiles (3) by means of the corner profiles (1 ).

[0059] In one embodiment, the step of overlapping profiles of side wall (3.1) for forming a side wall (3) comprises the steps of overlapping side wall extruded profiles (3.1) with straight internal and external faces, called straight profile (3.1 a), interspersed with side wall extruded profiles ( 3.1) with concave internal and external faces, called concave profile (3.1 b), whose concavity is facing the external part of the tipping road implement.

[0060] In this way, the manufacturing and assembly process, as well as the cargo box of the present invention and the side walls (3) overcome deficiencies and limitations of the state of the art and bring economic, environmental and safety advantages, since the The structure is equipped with profiles assembled by means of a fitting geometry and also fixed by means of adhesive materials and modular fixing elements, being free of welding points in the formation of the side walls (3), the floor (2) and in the union of these elements by corner profiles (1 ), which provides a regular structure, free of deformations caused by welding. Also, it provides a lighter structure when manufactured, for example, in extruded aluminum, when compared to heavy steel plate structures, where this lighter structure brings environmental advantages such as reduced fuel consumption and, consequently, lower emission of polluting gases. when the vehicle is driving unladen, as well as bringing advantages to the vehicle owner as, with a lighter structure, it allows the vehicle owner to carry a greater amount of cargo, maximizing the vehicle owner's profit. Furthermore, the cargo box of the present invention provides easy maintenance by comprising modularized elements, which facilitates its assembly and disassembly, reducing maintenance time and cost. Furthermore, it provides environmental gains in its manufacture by reducing the generation of polluting gases and residues that are produced in state-of-the-art welding processes. Example 1 - Tipper Cargo Box Made of Aluminum Profiles [0061] The examples shown here are intended only to exemplify one of the numerous ways to carry out the invention, however without limiting its scope.

[0062] In this example, a cargo box was developed for semi-trailers, trailers, road trains, double-trains and on tipper chassis composed of extruded aluminum profiles arranged horizontally in relation to the longitudinal length of the cargo box and joined through at least one adhesive material. At least three extruded profile geometries were used, the sidewall profile (3.1 ), the floor profile (2.1 ) and the corner profile (1 ) being extruded in aluminum. The three extruded profile geometries (2.1 ; 3.1 ; 1 ) are arranged longitudinally towards the vehicle, being long profiles, differing from the previous technique that uses shorter vertical profiles.

[0063] The floor profiles (2.1) were arranged next to each other, fitted using a snap-in geometry and fixed by means of adhesive material and modular fixing elements to a structural profile (2.2) of high strength steel , forming the floor (2). The side wall profiles (3.1) were arranged one above the other, fitted using a snap-in geometry and fixed using an adhesive material, forming the side wall (3). Figure 1 shows the tipping box of the present example.

[0064] The assembly process of the side walls (3) and the floor consists of applying structural adhesive in liquid and/or solid consistency between the fitting geometry of the side wall extruded aluminum profiles (3.1), in order to fix the side wall profiles (3.1) avoiding their detachment to form the side wall (3) in a watertight way, since the structural adhesive also has the function of sealing between the side wall profiles (3.1), bringing gains to the front to antecedents that use means with less sealing, such as rivets.

[0065] After the formation of the side walls (3), these are joined to the floor (2) of the tipping cargo box by corner profiles (1), where the floor profiles (2) are joined with structural steel profiles (2) with special geometry making the basic total composition of the cargo box set. This union of the side walls (3) and the floor (2) with corner profiles (1), forming the base structure of the cargo box, is a modular base that can be used in the production of various models of later cargo boxes. .

[0066] In the present example, a panel with hinged lid was welded to the rear end of the base structure, to aid in unloading, while a panel to support a hydraulic cylinder was welded to the front end of the base structure, in order to allow that the cargo box is tipped and the transported load flows through the rear hinged panel when unloading. In the upper part of the side walls (3) is associated a profile for fixing tarpaulins to cover the cargo box.

[0067] In this way, the cargo box as a whole developed in this example has a hybrid construction, as illustrated in figure 1, and its structuring takes place through extruded aluminum profiles fitted by means of fitting geometry combined with gluing and Modular fastening elements, free from spot welds.

[0068] The process of associating aluminum profiles by means of structural adhesive is widely used in the automotive industry, in light and passenger vehicles, but little known in modes of road transport of cargo. The use of new technologies and especially with the advancement of technology in structural adhesives encourages the modal industry for road freight transport to improve the production process, with great gains in process, productivity and, mainly, eliminating the weld by a more advanced technology. clean and without the generation of waste and polluting gases. In this sense, the present invention was developed.

[0069] In this way, the present invention brings technological and economic advantages, both for the manufacturer and for the owner/user of the vehicle, since it does not use welding processes to join the parts of the vehicle. base structure of the cargo box, so that there is no need for specialized welding labor for the fabrication and maintenance of the structure, nor the need for specific equipment for welding. It also reduces maintenance costs because the aluminum structure is weather resistant and does not require painting. In addition, because the aluminum structure is a lighter structure, it allows the user/owner to carry a greater amount of cargo, maximizing their profit, in addition to the lighter structure providing reduced fuel demand when the vehicle is circulating. no charge.

[0070] Still, the present invention brings environmental advantages, since the fabrication and assembly of the structure is done in order to be free of welding points, which makes the fabrication cleaner and environmentally correct by not generating waste or polluting gases. caused by welding. In addition, the lighter structure reduces the fuel/energy demand for the vehicle to run empty, reducing pollutant emissions during its use.

[0071] Those skilled in the art will value the knowledge presented herein and may reproduce the invention in the modalities presented and in other variants and alternatives, covered by the scope of the claims below.

Claims

22 Claims

1. Modular cargo box for a tilting road implement formed by the association of at least one right side wall (3) and a left side wall (3) to the floor (2) of the tilting road implement, the side walls (3) being and the floor (2) made of extruded metal profiles, said modular cargo box characterized by the fact that: a. each side wall (3) is formed by a combination of side wall profiles (3.1), arranged longitudinally along the length of the tipping road implement, the side wall profiles (3.1) being arranged one above the other; and b. the floor (2) is formed by extruded floor profiles (2.1), arranged longitudinally along the length of the tilting road implement and laterally associated with each other, forming said floor (2), and associated with a structural profile (2.2), transversal to the floor profiles (2.1), arranged below said floor (2).

Modular cargo box, according to claim 1, characterized in that the lower part of each side wall (3) is associated with the floor (2) by a corner profile (1), joined by adhesive material to the base of the side wall. (3) and associated by modular fixing elements to the structural profile (2.2) of the floor (2).

3. Modular cargo box, according to claim 1, characterized in that the side wall profile (3.1) comprises, at its vertical ends, a cavity and/or a socket protrusion, so that the association between the side wall profiles (3.1 ) is given by the association between protuberances and cavities of different side wall profiles (3.1 ) joined through the use of an adhesive material between the side wall profiles (3.1 ).

4. Modular cargo box, according to claim 3, characterized for each side wall (3) to be formed by the superposition of side wall profiles (3.1 ) with straight internal and external walls interspersed with side wall profiles (3.1 ) with concave internal and external walls, the concavity of which faces the outside of the tilting road implement joined by structural adhesive.

5. Modular cargo box, according to claim 1, characterized in that the floor profiles (2.1) comprise, at their horizontal ends, a cavity and/or a fitting protuberance, so that the association between floor profiles (2.1) ) is given by the association between protuberances and cavities of different floor profiles (2.1 ), arranged laterally to each other and on at least one structural profile (2.2), in which each floor profile (2.1 ) and the structural profile (2.2) comprise cavity of association of modular fastening elements for association between the structural profile (2.2) and the floor profiles (2.1) and joined by structural adhesive.

6. Modular cargo box, according to claim 1, characterized in that the corner profile (1) comprises: a. an upper cavity (1.1) that can be attached to a side wall profile

(3.1 ); B. a horizontal extension (1.2) provided with housing cavities for modular fastening elements for association with the structural profile (2.2); and c. an external vertical face (1.3), which extends from the top cavity (1.1 ) to the bottom of a structural profile face

(2.2).

7. Panel for load box structure of tipper-type vehicles for transporting cargo, characterized in that it comprises at least one side wall (3) formed by a combination of side wall profiles (3.1), arranged longitudinally along the length of the vehicle , the side wall profiles (3.1) being arranged one above the other and comprising, at their vertical ends, a cavity and/or a socket protrusion, so that the association between side wall extruded profiles (3.1 ) is given by the association between protrusions and cavities of different side wall extruded profiles (3.1 ) in combination with the use of an adhesive material between the side wall profiles (3.1 ) .

Panel, according to claim 7, characterized in that each side wall (3) comprises two models of side wall profile (3.1), a first model of straight profiles (3.1 a), which have their internal and external faces. straight and vertical, and a second model of concave profiles (3.1 b), whose internal and external faces are curved with concavity facing out of the cargo box, in which the side wall (3) is formed by the superposition of straight profiles ( 3.1 a) and interleaved concave profiles (3.1 b).

9. Process of manufacturing and assembling a tipper-type road implement cargo box, said cargo box formed by side walls (3) associated with a floor (2) of the tipping road implement, with the side walls (3) and the floor (2) manufactured in extruded metal profiles, said manufacturing and assembly process characterized by comprising the steps of: a. extrusion of a sidewall profile (3.1) in metallic material, comprising, at its vertical ends, a cavity and/or a fitting protuberance, so that the association between extruded sidewall profiles (3.1) occurs through the association between protrusions and cavities of distinct sidewall extruded profiles (3.1); B. overlapping of side wall profiles (3.1) arranged longitudinally towards the tipping road implement and gluing of the profiles (3.1), forming a side wall (3); ç. extrusion of a floor profile (2.1), comprising, at its horizontal ends, a cavity and/or a socket protrusion; d. layout of the extruded floor profiles (2.1) in the direction 25 of the tilting road implement and association between extruded floor profiles (2.1 ) by the association between protuberances and cavities of different extruded floor profiles (2.1 ) and joined by a structural adhesive between the protuberances and cavities, arranged laterally to each other and over the least one structural profile (2.2), transverse to the longitudinal direction of the profiles (2.1), in which each extruded floor profile (2.1) and the structural profile (2.2) comprise an association cavity of modular fastening elements for association between the structural profile (2.2) and extruded floor profiles (2.1); and. extrusion of at least one corner profile (1 ); and f. association between the floor (2) and the side wall profiles (3) by means of the corner profiles (1 ).

Process according to claim 9, characterized by the step of overlapping sidewall profiles (3.1) for forming the sidewall (3) comprising the steps of overlapping sidewall extruded profiles (3.1) with internal and external faces. external straight, called straight profile (3.1 a), interspersed with extruded side wall profiles (3.1) with concave internal and external faces, called concave profile (3.1 b), whose concavity is facing the external part of the tilting road implement.