EP3970987A1 - Ribbed metal sheet with visual effect - Google Patents

Ribbed metal sheet with visual effect Download PDF

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Publication number
EP3970987A1
EP3970987A1 EP21186867.4A EP21186867A EP3970987A1 EP 3970987 A1 EP3970987 A1 EP 3970987A1 EP 21186867 A EP21186867 A EP 21186867A EP 3970987 A1 EP3970987 A1 EP 3970987A1
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EP
European Patent Office
Prior art keywords
sheet
ribs
ribbed
coatings
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21186867.4A
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German (de)
French (fr)
Inventor
Julien FAISANDIER
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Ateliers 3s
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Ateliers 3s
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Publication date
Application filed by Ateliers 3s filed Critical Ateliers 3s
Publication of EP3970987A1 publication Critical patent/EP3970987A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2701/00—Coatings being able to withstand changes in the shape of the substrate or to withstand welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/065—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones

Definitions

  • the present invention relates to a corrugated sheet with a visual effect.
  • the term sheet applies here to any element substantially in the form of a plate, whatever the dimensions and/or the geometry of the latter, for example square, rectangular or other. In all cases, the thickness of such a sheet is of the order of a few millimeters, generally between 0.2 mm and 3 mm.
  • metallic includes any metal, including alloys, suitable for the use of sheet metal, exterior or interior, in aggressive environments or not.
  • the term rib concerns any relief, positive or negative, with respect to the mean plane of the sheet, whatever the geometry of the cross section of the ribs and/or the dimensions and/or the number and/or the distribution ribs on the sheet.
  • Such sheets are used for roofing a building or for cladding, that is to say, for covering the wall of a building, including internal walls. They can be painted or not.
  • the ribbed metal sheets used for roofing are generally monochrome, in particular in order to comply with the architectural regulations existing in certain countries such as France. There is also a monochrome appearance of the sheets when they are used as siding of a building, for example either in a plain color or imitating wood, brick, stone. This being the case, the practice currently encountered ensures a uniform treatment of the whole of the sheet, without differentiation between the ribs and the inter-rib flat zones.
  • EP-A-358495 a corrugated sheet in which the faces of the ribs and the flat areas have various colors in order to provide a different visual appearance depending on the position of the person who is looking in relation to the sheet.
  • the visual aspect varies according to the viewing angle.
  • a ribbed sheet provided with a coating based on pearlescent pigment which gives a changing appearance of the sheet according to the angle of view.
  • none of these solutions creates a trompe l'oeil making it possible to have a different appearance from that of a corrugated sheet.
  • the invention thus proposes a ribbed sheet offering a visual effect different from those usually encountered, on the basis of a polychromy adapted to the reliefs of the sheet.
  • the subject of the invention is a ribbed metal sheet comprising at least two ribs separated by a non-ribbed flat zone, characterized in that the whole of each rib receives at least a given first coating, the whole of each non-ribbed flat zone receiving at least a second coating, the first and second coatings being differentiated and constituting a given visual effect.
  • a visual differentiation of the ribs and the non-ribbed flat zones is carried out based on different colors.
  • a given visual effect for example a trompe-l'oeil by highlighting a given aspect of reliefs or flat areas.
  • At least one of the coatings is complex and combines a color with a granite or grooved appearance.
  • At least one of the coverings is a prefabricated strip.
  • FIG.1 is a partial view, in perspective from the visible upper face, of a corrugated sheet metal according to one embodiment of the invention.
  • the figure 1 illustrates, partially, a ribbed metal sheet 1.
  • This is a steel metal sheet.
  • the sheet is made of another metal, an alloy or a composite material.
  • Such a sheet 1 generally has a rectangular shape, it being understood that it can be square.
  • Sheet 1 is ribbed.
  • the ribs 2 are all identical, parallel and regularly distributed over the sheet.
  • the ribs 2 are provided over the entire length of the sheet 1, therefore according to its largest dimension.
  • the ribs present on the sheet are not all identical and/or are not distributed regularly. Likewise, they can be arranged on a part of the sheet and/or according to its smallest dimension.
  • the ribs are located below a mean plane P of the sheet 1, or alternatively above and below the mean plane P of the sheet 1.
  • the ribs 2 here all have, in cross section, a trapezoidal shape. They are separated by a flat zone 3 of the sheet.
  • the flat areas 3 define the mean plane P of the sheet 1.
  • the flat top 4 of each rib 2 is parallel to the plane P, therefore to the flat areas 3.
  • the sides 5, 6 of each rib 2 are inclined so that the open base 7 of each rib 2 has an area greater than that of the top 4 of the rib 2 concerned.
  • the flat areas 3 and each rib 2. present a differentiated coating, respectively R2, R3.
  • the top 4 and the sides 5, 6, which is coated identically by the coating R2, namely a given color.
  • the coating may be different between the various constituent parts 4 to 6 of a rib 2.
  • the coating consists of a given color R2, providing a particular visual appearance, for example imitating wood or another material.
  • the coating can be complex, associating one or more colors with a granite, grooved or other appearance.
  • the flat areas 3 are provided with a coating R3 different from that R2 of the ribs 2 and chosen to provide a visual contrast and/or a given visual appearance, for example a trompe-l'oeil over the entire sheet 1.
  • the flat areas 3 are of a uniform, dark color R3, or even black, in order to give the optical illusion that wooden ribs are fixed on the wall of the building equipped with the sheet 1, this without the flat areas 3 stand out visually.
  • there is a differentiation by color between the ribs and the flat areas so that visually the ribs seem for example independent because in another material, flat areas.
  • the visual effect relates to the largest dimension of the sheet 1, the ribs 2 and flat areas 3 having their respective coating over their entire length.
  • the coatings R2, R3 of the ribs 2 and flat zones 3 concern only part of the length of the latter, or even discontinuously, in dotted lines.
  • a visual effect of the sheet is produced in two dimensions, like a grid.
  • the choice of coatings R2, R3 is such that it is the flat zones 3 which stand out visually with respect to the ribs 2.
  • the visual appearance does not is not that, uniform, of a sheet, only certain areas, the ribs or the flat areas, being highlighted.
  • Such a sheet is obtained either by placing the coating R2, R3 of the ribs 2 and flat areas 3 on a finished sheet, for example by painting, depositing a polymer film, colored or having a given appearance. , for example with microreliefs, or by gluing prefabricated strips corresponding to the desired coating R2, R3, in terms of color and/or appearance.
  • coatings R2, R3 are applied which, on a finished sheet 1, will form the coatings R2, R3 of ribs 2 and flat zones 3, this according to parallel strips between them and over the entire length of the metal strip.
  • the ribs and therefore the flat areas are shaped by bending.
  • the metal strip is then cut into sections whose dimensions correspond to those of a sheet 1.
  • the longevity of the sheet is improved, the coatings R2, R3 having a protective role against aging in air and/or against shocks.

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  • Finishing Walls (AREA)
  • Laminated Bodies (AREA)

Abstract

[La tôle métallique nervurée (1) comporte au moins deux nervures (2) séparées par une zone plane (3) non nervurée. L'ensemble de chaque nervure (2) reçoit au moins un premier revêtement (R2) donné, l'ensemble de chaque zone plane (3) non nervurée recevant au moins un second revêtement (R3), les premiers (R2) et second (R3) revêtements étant différenciés et constitutifs d'un effet visuel donné.[The ribbed metal sheet (1) comprises at least two ribs (2) separated by a flat area (3) not ribbed. All of each rib (2) receives at least one given first coating (R2), all of each non-ribbed flat area (3) receives at least one second coating (R3), the first (R2) and second ( R3) coatings being differentiated and constituting a given visual effect.

Description

[La présente invention concerne une tôle nervurée à effet visuel.[The present invention relates to a corrugated sheet with a visual effect.

le terme tôle s'applique ici à tout élément sensiblement en forme de plaque, quelle que soient les dimensions et/ou la géométrie de cette dernière, par exemple carrée, rectangulaire ou autre. Dans tous les cas, l'épaisseur d'une telle tôle est de l'ordre de quelques millimètres, généralement entre 0,2 mm et 3 mm. Le terme métallique comprend tout métal, y compris les alliages, adaptés à l'utilisation de la tôle, extérieure ou intérieure, en milieu agressif ou non. De même, le terme nervure concerne tout relief, en positif ou négatif, par rapport au plan moyen de la tôle, quelles que soient la géométrie de la section transversale des nervures et/ou les dimensions et/ou le nombre et/ou la répartition des nervures sur la tôle. De telles tôles sont utilisées en couverture d'un bâtiment ou en bardage, c'est-à-dire, en revêtement de paroi d'un bâtiment, y compris des parois internes. Elles peuvent être peintes ou non.the term sheet applies here to any element substantially in the form of a plate, whatever the dimensions and/or the geometry of the latter, for example square, rectangular or other. In all cases, the thickness of such a sheet is of the order of a few millimeters, generally between 0.2 mm and 3 mm. The term metallic includes any metal, including alloys, suitable for the use of sheet metal, exterior or interior, in aggressive environments or not. Similarly, the term rib concerns any relief, positive or negative, with respect to the mean plane of the sheet, whatever the geometry of the cross section of the ribs and/or the dimensions and/or the number and/or the distribution ribs on the sheet. Such sheets are used for roofing a building or for cladding, that is to say, for covering the wall of a building, including internal walls. They can be painted or not.

Les tôles métalliques nervurées utilisées en couverture sont généralement monochrome, notamment afin de respecter la réglementation architecturale existante dans certains pays comme la France. On retrouve également un aspect monochrome des tôles lorsqu'elles sont employées en bardage d'un bâtiment, par exemple soit d'une teinte unie soit imitant le bois, la brique, la pierre. Ceci étant, la pratique actuellement rencontrée assure un traitement uniforme de l'ensemble de la tôle, sans différenciation entre les nervures et les zones planes inter-nervures. Afin de réaliser un effet visuel particulier, on connait par EP-A-358495 une tôle nervurée dont les faces des nervures et les zones planes présentent diverses couleurs afin d'offrir un aspect visuel diffèrent selon la position de la personne qui regarde par rapport à la tôle. En d'autres termes, l'aspect visuel varie selon l'angle de vue. on connait également par EP-A-1223255 une tôle nervurée pourvue d'un revêtement à base de pigment nacrés qui donne un aspect changeant de la tôle selon l'angle de vue. même si l'état de la technique offre des solutions pour changer l'aspect visuel, plus précisément la couleur, d'une tôle nervurée selon l'angle de vue, aucune de ces solutions ne réalise un trompe l'œil permettant d'avoir un aspect différent de celui d'une tôle nervurée.The ribbed metal sheets used for roofing are generally monochrome, in particular in order to comply with the architectural regulations existing in certain countries such as France. There is also a monochrome appearance of the sheets when they are used as siding of a building, for example either in a plain color or imitating wood, brick, stone. This being the case, the practice currently encountered ensures a uniform treatment of the whole of the sheet, without differentiation between the ribs and the inter-rib flat zones. In order to achieve a particular visual effect, we know by EP-A-358495 a corrugated sheet in which the faces of the ribs and the flat areas have various colors in order to provide a different visual appearance depending on the position of the person who is looking in relation to the sheet. In other words, the visual aspect varies according to the viewing angle. we also know by EP-A-1223255 a ribbed sheet provided with a coating based on pearlescent pigment which gives a changing appearance of the sheet according to the angle of view. even if the state of the art offers solutions to change the visual aspect, more precisely the color, of a corrugated sheet according to the angle of view, none of these solutions creates a trompe l'oeil making it possible to have a different appearance from that of a corrugated sheet.

L'invention propose ainsi une tôle nervurée offrant un effet visuel diffèrent de ceux rencontrés habituellement, sur la base d'une polychromie adaptée aux reliefs de la tôle.The invention thus proposes a ribbed sheet offering a visual effect different from those usually encountered, on the basis of a polychromy adapted to the reliefs of the sheet.

A cet effet, l'invention a pour objet une tôle métallique nervurée comportant au moins deux nervures séparées par une zone plane non nervurée, caractérisée en ce que l'ensemble de chaque nervure reçoit au moins un premier revêtement donné, l'ensemble de chaque zone plane non nervurée recevant au moins un second revêtement, les premiers et seconds revêtements étant différenciés et constitutifs d'un effet visuel donné.To this end, the subject of the invention is a ribbed metal sheet comprising at least two ribs separated by a non-ribbed flat zone, characterized in that the whole of each rib receives at least a given first coating, the whole of each non-ribbed flat zone receiving at least a second coating, the first and second coatings being differentiated and constituting a given visual effect.

Grâce à l'invention on réalise une différenciation visuelle des nervures et des zones planes non nervurées basée sur des couleurs différentes Ainsi, en associant la perception visuelle des reliefs formés par les nervures avec une couleur donnée par rapport aux zones non nervurées, on définit un effet visuel donné, par exemple un trompe-l'œil en mettant en avant un aspect donné des reliefs ou de zones planes. Grâce à l'invention, à partir d'une tôle donnée, on peut obtenir plusieurs effets visuels, sans modification structurelle de la tôle tout en donnant l'impression qu'il ne s'agit pas d'une tôle nervurée monobloc.Thanks to the invention, a visual differentiation of the ribs and the non-ribbed flat zones is carried out based on different colors. Thus, by associating the visual perception of the reliefs formed by the ribs with a given color with respect to the non-ribbed zones, a given visual effect, for example a trompe-l'oeil by highlighting a given aspect of reliefs or flat areas. Thanks to the invention, from a given sheet, several visual effects can be obtained, without structural modification of the sheet while giving the impression that it is not a one-piece corrugated sheet.

.Selon des aspects avantageux mais non obligatoires de l'invention, une telle tôle peut comprendre une ou plusieurs des caractéristiques suivantes :

  • au moins un des revêtements est discontinu, en pointillés.
.According to advantageous but not mandatory aspects of the invention, such a sheet may comprise one or more of the following characteristics:
  • at least one of the coatings is discontinuous, dotted.

Au moins un des revêtements est complexe et associe une couleur avec un aspect granité ou rainuré.At least one of the coatings is complex and combines a color with a granite or grooved appearance.

Au moins un des revêtements est une bande préfabriquée.At least one of the coverings is a prefabricated strip.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaitront plus clairement à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en référence au dessin annexé dans lequel:
[Fig.1] est une vue partielle, en perspective à partir de la face supérieure visible, d'une tôle métallique nervurée conforme à un mode de réalisation de l'invention.The invention will be better understood and other advantages thereof will appear more clearly on reading the following description, given solely by way of non-limiting example and made with reference to the appended drawing in which:
[ Fig.1 ] is a partial view, in perspective from the visible upper face, of a corrugated sheet metal according to one embodiment of the invention.

La figure 1 illustre, partiellement, une tôle métallique nervurée 1. Il s'agit ici d'une tôle métallique en acier. En variante, la tôle est en un autre métal, en alliage ou en matériau composite. Une telle tôle 1 a généralement une forme rectangulaire, étant entendu qu'elle peut être carrée. La tôle 1 est nervurée. Ici, les nervures 2 sont toutes identiques, parallèles et régulièrement réparties sur la tôle. Les nervures 2 sont ménagées sur toute la longueur de la tôle 1, donc selon sa plus grande dimension. En variante, on conçoit que les nervures présentes sur la tôle ne sont pas toutes identiques et/ou ne sont pas réparties régulièrement. De même, elles peuvent être disposées sur une partie de la tôle et/ou selon sa plus petite dimension. Dans d'autres modes de réalisation, les nervures sont situées sous un plan moyen P de la tôle 1, ou bien alternativement au-dessus et en dessous du plan moyen P de la tôle 1.The figure 1 illustrates, partially, a ribbed metal sheet 1. This is a steel metal sheet. As a variant, the sheet is made of another metal, an alloy or a composite material. Such a sheet 1 generally has a rectangular shape, it being understood that it can be square. Sheet 1 is ribbed. Here, the ribs 2 are all identical, parallel and regularly distributed over the sheet. The ribs 2 are provided over the entire length of the sheet 1, therefore according to its largest dimension. As a variant, it is understood that the ribs present on the sheet are not all identical and/or are not distributed regularly. Likewise, they can be arranged on a part of the sheet and/or according to its smallest dimension. In other embodiments, the ribs are located below a mean plane P of the sheet 1, or alternatively above and below the mean plane P of the sheet 1.

Les nervures 2 ont ici toutes, en section transversale, une forme trapézoïdale. Elles sont séparées par une zone plane 3 de la tôle. Les zones planes 3 définissent le plan moyen P de la tôle 1. Ici, le sommet plan 4 de chaque nervure 2 est parallèle au plan P, donc aux zones planes 3. Les côtés 5, 6 de chaque nervure 2 sont inclinés de sorte que la base ouverte 7 de chaque nervure 2 a une aire supérieure à celle du sommet 4 de la nervure 2 concernée.The ribs 2 here all have, in cross section, a trapezoidal shape. They are separated by a flat zone 3 of the sheet. The flat areas 3 define the mean plane P of the sheet 1. Here, the flat top 4 of each rib 2 is parallel to the plane P, therefore to the flat areas 3. The sides 5, 6 of each rib 2 are inclined so that the open base 7 of each rib 2 has an area greater than that of the top 4 of the rib 2 concerned.

Selon l'invention, les zones planes 3 et chaque nervure 2.presentent un revêtement différencié, respectivement R2, R3. Ici, c'est l'ensemble de chaque nervure 2, donc le sommet 4 et les côtés 5, 6, qui est revêtu de manière identique par le revêtement R2, à savoir une couleur donnée. En variante, seul le sommet 4 et /ou au moins un des côtés 5,6 sont revêtus. De même, le revêtement peut être différent entre les diverses parties 4 à 6 constitutives d'une nervure 2. Dans le mode de réalisation illustré, le revêtement consiste en une couleur donnée R2, procurant un aspect visuel particulier, par exemple imitant le bois ou un autre matériau. En variante, le revêtement peut être complexe, associant un ou des couleurs avec un aspect granité, rainuré ou autre.According to the invention, the flat areas 3 and each rib 2.present a differentiated coating, respectively R2, R3. Here, it is the whole of each rib 2, therefore the top 4 and the sides 5, 6, which is coated identically by the coating R2, namely a given color. Alternatively, only the top 4 and/or at least one of the sides 5.6 are coated. Similarly, the coating may be different between the various constituent parts 4 to 6 of a rib 2. In the illustrated embodiment, the coating consists of a given color R2, providing a particular visual appearance, for example imitating wood or another material. As a variant, the coating can be complex, associating one or more colors with a granite, grooved or other appearance.

Les zones planes 3 sont pourvues d'un revêtement R3 différent de celui R2 des nervures 2 et choisi pour fournir un contraste visuel et/ou un aspect visuel donné, par exemple un trompe-l'œil sur toute la tôle 1. Dans l'exemple, si les nervures 2 ont une couleur R2 imitant le bois, les zones planes 3 sont d'une couleur uniforme, sombre R3, voire noire, afin de donner l'illusion optique que des nervures en bois sont fixées sur la paroi du bâtiment équipée de la tôle 1, cela sans que les zones planes 3 ressortent visuellement. Dans tous les cas, on a une différenciation par la couleur entre les nervures et les zones planes de sorte que visuellement les nervures semblent par exemple indépendantes car dans un autre matériau, des zones planes. Selon le mode de réalisation illustré à la figure 1, l'effet visuel concerne la plus grande dimension de la tôle 1, les nervures 2 et zones planes 3 ayant leur revêtement respectif sur toute leur longueur. En variante, les revêtements R2, R3 des nervures 2 et zones planes 3 ne concernent qu'une partie de la longueur de ces dernières, voire de manière discontinue, en pointillés. Dans une telle configuration, on réalise un effet visuel de la tôle selon deux dimensions, à la manière d'un quadrillage.The flat areas 3 are provided with a coating R3 different from that R2 of the ribs 2 and chosen to provide a visual contrast and/or a given visual appearance, for example a trompe-l'oeil over the entire sheet 1. In the example, if the ribs 2 have a color R2 imitating wood, the flat areas 3 are of a uniform, dark color R3, or even black, in order to give the optical illusion that wooden ribs are fixed on the wall of the building equipped with the sheet 1, this without the flat areas 3 stand out visually. In all cases, there is a differentiation by color between the ribs and the flat areas so that visually the ribs seem for example independent because in another material, flat areas. According to the embodiment illustrated in figure 1 , the visual effect relates to the largest dimension of the sheet 1, the ribs 2 and flat areas 3 having their respective coating over their entire length. As a variant, the coatings R2, R3 of the ribs 2 and flat zones 3 concern only part of the length of the latter, or even discontinuously, in dotted lines. In such a configuration, a visual effect of the sheet is produced in two dimensions, like a grid.

Dans d'autres modes de réalisation, le choix des revêtements R2, R3 est tel que ce sont les zones planes 3 qui ressortent visuellement par rapport aux nervures 2. Dans tous les cas, grâce à l'invention, l'aspect visuel n'est pas celui, uniforme, d'une tôle, seules certaines zones, les nervures ou les zones planes, étant mises en évidence.In other embodiments, the choice of coatings R2, R3 is such that it is the flat zones 3 which stand out visually with respect to the ribs 2. In all cases, thanks to the invention, the visual appearance does not is not that, uniform, of a sheet, only certain areas, the ribs or the flat areas, being highlighted.

La réalisation d'une telle tôle est obtenue soit par mise en place du revêtement R2, R3 des nervures 2 et de zones planes 3 sur une tôle finie, par exemple par peinture, dépôt d'un film polymère, coloré ou ayant un aspect donné, par exemple avec des microreliefs, ou par collage de bandes préfabriquées correspondant au revêtement R2, R3 voulu, en terme de couleurs et/ou d'aspect.The production of such a sheet is obtained either by placing the coating R2, R3 of the ribs 2 and flat areas 3 on a finished sheet, for example by painting, depositing a polymer film, colored or having a given appearance. , for example with microreliefs, or by gluing prefabricated strips corresponding to the desired coating R2, R3, in terms of color and/or appearance.

En variante, sur une bande métallique plane, avant réalisation des nervures par pliage, on appose les revêtements R2, R3 qui, sur une tôle 1 finie formeront les revêtements R2, R3 de nervures 2 et zones planes 3, cela selon des bandes parallèle entre elles et sur toute la longueur de la bande métallique. Pour cela, on utilise soit des techniques connues en soi de peinture soit le collage de bandes préfabriquées. Dans tous les cas, une fois les revêtements appliqués sur la bande métallique, on met en forme par pliage les nervures et donc les zones planes. La bande métallique est ensuite coupée en tronçons dont les dimensions correspondent à celles d'une tôle 1.As a variant, on a flat metal strip, before the ribs are produced by bending, coatings R2, R3 are applied which, on a finished sheet 1, will form the coatings R2, R3 of ribs 2 and flat zones 3, this according to parallel strips between them and over the entire length of the metal strip. For this, we use either known techniques of painting or the gluing of strips prefabricated. In all cases, once the coatings have been applied to the metal strip, the ribs and therefore the flat areas are shaped by bending. The metal strip is then cut into sections whose dimensions correspond to those of a sheet 1.

Grâce à l'invention, outre un aspect visuel optimisé, on améliore la longévité de la tôle, les revêtements R2, R3 ayant un rôle protecteur contre le vieillissement à l'air et/ou contre les chocs.Thanks to the invention, in addition to an optimized visual appearance, the longevity of the sheet is improved, the coatings R2, R3 having a protective role against aging in air and/or against shocks.

Claims (4)

Tôle métallique nervurée (1) comportant au moins deux nervures (2) séparées par une zone plane (3) non nervurée, caractérisée en ce que l'ensemble de chaque nervure (2) reçoit au moins un premier revêtement (R2) donné, l'ensemble de chaque zone plane (3) non nervurée séparant les nervures (2) recevant au moins un second revêtement (R3), les premiers (R2) et second (R3) revêtements étant différenciés et constitutifs d'un effet visuel donné, par exemple un trompe-l'œil.Ribbed metal sheet (1) comprising at least two ribs (2) separated by a flat non-ribbed zone (3), characterized in that the whole of each rib (2) receives at least a given first coating (R2), the each non-ribbed flat zone (3) separating the ribs (2) receiving at least one second coating (R3), the first (R2) and second (R3) coatings being differentiated and constituting a given visual effect, for example a sham. Tôle selon la revendication 1, caractérise en ce qu'au moins un des revêtements (R2, R3) est discontinu, en pointillés.Sheet according to Claim 1, characterized in that at least one of the coatings (R2, R3) is discontinuous, dotted. Tôle selon l'une des revendications 1 ou 2, caractérisée en ce qu'au moins un des revêtements (R2, R3) est complexe et associe une couleur avec un aspect granité ou rainuré.Sheet according to one of Claims 1 or 2, characterized in that at least one of the coatings (R2, R3) is complex and combines a color with a granite or grooved appearance. Tôle selon l'une des revendications précédentes, caractérisée en ce qu'au moins un des revêtements (R2, R3) est une bande préfabriquée.Sheet according to one of the preceding claims, characterized in that at least one of the coatings (R2, R3) is a prefabricated strip.
EP21186867.4A 2020-09-22 2021-07-21 Ribbed metal sheet with visual effect Pending EP3970987A1 (en)

Applications Claiming Priority (1)

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FR2009574A FR3114270A1 (en) 2020-09-22 2020-09-22 RIBBED METAL SHEET WITH VISUAL EFFECT

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EP3970987A1 true EP3970987A1 (en) 2022-03-23

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358495A1 (en) 1988-09-06 1990-03-14 James Martin Daly Decorative elements
EP1223255A2 (en) 2001-01-16 2002-07-17 Maas - GmbH Building element for the exterior of buildings

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915568A1 (en) * 1979-04-18 1980-10-23 Lipps Geb Miehle Deep-relief decorative tile system - uses tiles made of cast concrete with three=dimensional surfaces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358495A1 (en) 1988-09-06 1990-03-14 James Martin Daly Decorative elements
EP1223255A2 (en) 2001-01-16 2002-07-17 Maas - GmbH Building element for the exterior of buildings

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