EP0005118B1 - Panel having stiffening protuberances with hollow sections and structures made therefrom - Google Patents

Panel having stiffening protuberances with hollow sections and structures made therefrom Download PDF

Info

Publication number
EP0005118B1
EP0005118B1 EP79400258A EP79400258A EP0005118B1 EP 0005118 B1 EP0005118 B1 EP 0005118B1 EP 79400258 A EP79400258 A EP 79400258A EP 79400258 A EP79400258 A EP 79400258A EP 0005118 B1 EP0005118 B1 EP 0005118B1
Authority
EP
European Patent Office
Prior art keywords
panel
bosses
panel according
panels
corners
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.)
Expired
Application number
EP79400258A
Other languages
German (de)
French (fr)
Other versions
EP0005118A2 (en
EP0005118A3 (en
Inventor
Constantin Iconomou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0005118A2 publication Critical patent/EP0005118A2/en
Publication of EP0005118A3 publication Critical patent/EP0005118A3/en
Application granted granted Critical
Publication of EP0005118B1 publication Critical patent/EP0005118B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/326—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with corrugations, incisions or reliefs in more than one direction of the element

Definitions

  • the present invention relates to a polygonal construction panel, formed of a layer of substantially constant thickness of a rigid material and further comprising a network of interconnected bosses with hollow section intended to increase the rigidity and delimiting ranges, the density of distribution of the internal bosses being substantially constant at the surface of the panel.
  • a second plate provided with additional bosses may have a lower rigidity, the bosses intended to increase the rigidity being able, under conditions data, revealing themselves as weak zones allowing in particular a folding favoring a deformation mode of the plate.
  • the object of the invention is, by providing new stiffness criteria applicable a priori, and by proposing new construction characteristics, the production of new panels whose rigidity is greater than that of known panels, so that they are self-supporting.
  • any panel according to the present invention is essentially characterized in that the network of interconnected bosses includes peripheral bosses formed along all the edges of the panel and internal bosses extending from the corners of the panel or in the vicinity of these corners to converge towards the inside of this panel, and in that no boss extends alone, in a straight line, between any two edges, or between two non-neighboring corners, or between an edge and a corner not neighboring the panel, panel, because of its structure, being rigid, self-supporting and designed to withstand forces applied perpendicular to its surface and to transmit them to support points with which it is in contact at or in the vicinity of its corners.
  • the internal bosses are curved and, for example, they meander on the surface of the panel.
  • Another possible characteristic of the bosses is their twisted profile.
  • the bosses preferably have a curved section.
  • all of the areas located between the bosses can constitute a planar or non-planar surface.
  • the panels of the first category called flat panels, can in particular be triangular, square or rectangular.
  • the panels of the second category have a structure which results from a topological transformation of said planar polygonal panels. It has been found that the panels of the second category have static properties equal, if not superior, to those of the aforementioned flat panels.
  • left surfaces such as conoid surfaces, in particular the hyperbolic paraboloid surfaces (PH) well known in architecture, also spherical, ellipsoidal, ovoid surfaces, as well as developable surfaces such as cylindrical or conical surfaces.
  • PH hyperbolic paraboloid surfaces
  • the present invention relates firstly to a polygonal panel 1, for example triangular, square or rectangular, specially designed to withstand forces applied perpendicular to its surface (that is to say, with reference to Figures 1, 4 and 12 for example, perpendicular to the plane of the drawing sheet), and to transmit these forces to support points (not shown) on which the panel is supported by its corners 1a, 1b, 1c, 1d.
  • a polygonal panel for example triangular, square or rectangular, specially designed to withstand forces applied perpendicular to its surface (that is to say, with reference to Figures 1, 4 and 12 for example, perpendicular to the plane of the drawing sheet), and to transmit these forces to support points (not shown) on which the panel is supported by its corners 1a, 1b, 1c, 1d.
  • This panel consists of a layer of substantially constant thickness of a rigid material such as a metal such as steel or a rigid polymeric material, having bosses 2, 3 with hollow section ( Figures 19, 20, 22) intended to increase the rigidity, these bosses delimiting, at least partially, areas 4 which are flat and substantially coplanar.
  • a rigid material such as a metal such as steel or a rigid polymeric material
  • the set of bosses 2, 3 comprises on the one hand peripheral bosses 2 formed in the vicinity of all the edges of the panel, preferably so as to connect all the corners 1a, 1b, 1c, 1 d of the panel, and on the other hand internal bosses 3 extending, in the vicinity of the corners of the panel, or exactly from these corners, towards the interior of the panel, that is to say so approach the center 5 of this panel.
  • These internal bosses 3 form a network of interconnected bosses having a substantially constant distribution density on the surface of the panel, this regularity of density being recognized in that there is no flat area 4, totally delimited by bosses, of which the surface reaches half that of the panel.
  • the panel has a symmetry of order 2 (rectangle), of order 3 (equilateral triangle), of order 4 (square), etc.
  • the distribution of the surface areas similar to very preferably a symmetry respectively of order 2, of order 3, of order 4, etc. It can however also be adequately provided, for any panel having a symmetry of order at least equal to 3, that the distribution of the ranges analogues has a symmetry of multiple or infinite order, and, for any panel having a symmetry of order at least equal to 6, that the distribution of the analogous ranges has symmetry of order under multiple.
  • the network formed by the internal bosses 3 is such that no rectilinear boss extends entirely between any two edges of the panel, or between two non-neighboring corners of the panel, or between an edge and a corner not neighboring this same panel.
  • FIGS. 1 to 18 represent different embodiments of rigid panels.
  • FIGS. 23 to 31 illustrate typical counterexamples of the invention, that is to say panels having a rigidity markedly less than that presented by the panels of FIGS. 1 to 18.
  • the panel of FIG. 23 does not belong to the invention, since it has at least one rectilinear boss extending from a corner of the panel or from its immediate vicinity to a non-neighboring side or to its immediate vicinity;
  • the panels of FIGS. 24, 26, 28, 30 do not belong to the invention, because they have at least one rectilinear boss extending between any edge of the panel or its immediate vicinity and another arbitrary edge or its immediate vicinity ;
  • the panels of Figures 27 and 29 do not belong to the invention because they have at least one rectilinear boss extending between a corner of the panel or its immediate vicinity and a non-neighboring corner, or its immediate vicinity;
  • the panels of Figures 25, 26 and 31 do not belong to the invention because the internal bosses are not interconnected, that is to say at least extremely close.
  • the bosses in the center of the panel are not crossed when these bosses are rectilinear; on the other hand, as shown in FIG. 8, the crossings, in the center, of bosses with sinuous path are quite permitted.
  • Figures 19 and 20 which are sectional views along lines IXX and XX respectively of Figure 4, show that the panels of the invention can be glued or welded, by their side showing the inside of the bosses, on a flat plate 6 of an inextensible and preferably also rigid material, such as plywood, steel, a polymeric substance, etc.
  • This plate can also be formed by another panel according to the invention.
  • the bosses can have a twisted profile. This characteristic makes it possible to increase the torsional resistance of the bosses and, consequently, the rigidity of the panel.
  • the invention also relates to panels such as those shown in FIGS. 32 to 35 and the structure of which results from a topological transformation of a planar polygonal panel having the characteristics of bosses recalled above. (The bosses have not been shown in these figures so as not to complicate them.
  • the panels ABCD according to FIG. 32 and ABC according to FIG. 33 are panels with a surface PH whose contours are projected respectively in a square and a triangle; in other words, we can consider that their structure results from a topological transformation of plane panels respectively A i BC i D and DB I C, the bosses of these plane panels also undergo the same transformation.
  • FIG. 34 shows a panel ABCDEF with a left surface, each half of which (ABEF and BCDE) is a surface PH which projects along a trapezoid (A 1 BE 1 F and BC 1 DE 1 ).
  • the spherical panel ABC (figure 35) projects according to an equilateral or isosceles triangle.
  • each elementary panel is a self-supporting structure and the complex assemblies which they make it possible to create are therefore self-supporting.
  • Figures 36 and 37 show assemblies respectively in tablecloth and in half-cylinder of panels with PH surface with diamond projection .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Finishing Walls (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)

Description

La présente invention a pour objet un panneau de construction polygonal, formé d'une couche d'épaisseur sensiblement constante d'un matériau rigide et comportant en outre un réseau de bossages interconnectés à section creuse destinés à en augmenter la rigidité et délimitant des plages, la densité de distribution des bossages internes étant sensiblement constante à la surface du panneau.The present invention relates to a polygonal construction panel, formed of a layer of substantially constant thickness of a rigid material and further comprising a network of interconnected bosses with hollow section intended to increase the rigidity and delimiting ranges, the density of distribution of the internal bosses being substantially constant at the surface of the panel.

Il est connu d'augmenter la rigidité d'une plaque d'un matériau quelconque en la renforçant à sa surface, par des nervures rapportées ou venant de moulage avec cette plaque. Dans un tel cas, les nervures sont pleines et leur effet de renforcement apparaît quelle que soit leur distribution et position à la surface de la plaque.It is known to increase the rigidity of a plate of any material by strengthening it on its surface, by added ribs or from molding with this plate. In such a case, the ribs are full and their reinforcing effect appears whatever their distribution and position on the surface of the plate.

Il est également connu par les brevets américains US―A―3 133 795 et Us-A-2 699 599 d'augmenter la rigidité d'une plaque polygonale en la déformant à certains endroits de sa surface de manière à faire apparaître des bossages à section creuse, la plaque finie ayant cependant une épaisseur sensiblement constante sur toute sa surface, y compris à l'endroit des bossages, qui peuvent être interconnectés (US-A-3 133 795) et dont la répartition sur la surface du panneau a une configuration régulière. Dans ce cas, le renfoncement n'est pas produit par apport de matière et résulte de la nécessité, pour la plaque soumise à certaines contraintes, de satisfaire à des conditions de topologie liées à la répartition et la disposition relative de ses bossages. C'est ainsi que par rapport à une plaque présentant de tels bossages obtenus par déformation ou moulage et qui peuvent être interconnectés, une seconde plaque dotée de bossages supplémentaires peut présenter une rigidité inférieure, les bossages destinés à augmenter la rigidité pouvant, dans des conditions données, se révéler comme des zones faibles permettant notamment un pliage favorisant un mode de déformation de la plaque.It is also known from the US patents US ― A ― 3,133,795 and Us-A-2,699,599 to increase the rigidity of a polygonal plate by deforming it in certain places on its surface so as to cause bosses to appear. hollow section, the finished plate having however a substantially constant thickness over its entire surface, including at the location of the bosses, which can be interconnected (US-A-3,133,795) and the distribution of which over the surface of the panel has a regular configuration. In this case, the recess is not produced by adding material and results from the need, for the plate subjected to certain constraints, to satisfy topology conditions related to the distribution and the relative arrangement of its bosses. Thus, compared to a plate having such bosses obtained by deformation or molding and which can be interconnected, a second plate provided with additional bosses may have a lower rigidity, the bosses intended to increase the rigidity being able, under conditions data, revealing themselves as weak zones allowing in particular a folding favoring a deformation mode of the plate.

Toutefois, il ne semble pas possible actuellement, même en ayant recours aux plus récentes théories mathématiques ainsi qu'aux moyens informatiques modernes, de déterminer, pour un panneau de forme donnée, la configuration optimale des bossages de rigidité, c'est-à-dire la configuration de bossages pour laquelle la distribution des contraintes, dans le panneau soumis à des efforts appliqués sur sa surface, présente l'anisotropie la plus faible.However, it does not currently seem possible, even using the most recent mathematical theories as well as modern computer means, to determine, for a panel of given shape, the optimal configuration of the stiffness bosses, that is to say say the configuration of bosses for which the stress distribution, in the panel subjected to forces applied to its surface, has the lowest anisotropy.

Dans ce contexte, l'invention a pour but, en fournissant de nouveaux critères de rigidité applicables a priori, et en proposant de nouvelles caractéristiques de construction, la réalisation de nouveaux panneaux dont la rigidité est supérieure à celle des panneaux connus, de telle sorte qu'ils sont autoportants.In this context, the object of the invention is, by providing new stiffness criteria applicable a priori, and by proposing new construction characteristics, the production of new panels whose rigidity is greater than that of known panels, so that they are self-supporting.

Tout panneau conforme à la présente invention est essentiellement caractérisé en ce que le réseau de bossages interconnectés comprend des bossages périphériques formés le long de tous les bords du panneau et des bossages internes s'étendant des coins du panneau ou du voisinage de ces coins pour converger vers l'intérieur de ce panneau, et en ce qu'aucun bossage ne s'étend seul, en ligne droite, entre deux bords quelconques, ni entre deux coins non voisins, ni entre un bord et un coin non voisins du panneau, ce panneau, du fait de sa structure, étant rigide, autoportant et conçu pour supporter des efforts appliqués perpendiculairement à sa surface et pour les transmettre à des points d'appui avec lesquels il est en contact à ou au voisinage de ses coins.Any panel according to the present invention is essentially characterized in that the network of interconnected bosses includes peripheral bosses formed along all the edges of the panel and internal bosses extending from the corners of the panel or in the vicinity of these corners to converge towards the inside of this panel, and in that no boss extends alone, in a straight line, between any two edges, or between two non-neighboring corners, or between an edge and a corner not neighboring the panel, panel, because of its structure, being rigid, self-supporting and designed to withstand forces applied perpendicular to its surface and to transmit them to support points with which it is in contact at or in the vicinity of its corners.

De préférence, certains au moins des bossages internes sont courbes et, par exemple, ils serpentent à la surface du panneau. Une autre caractéristique possible des bossages est leur profil en torsade. En outre, les bossages ont de préférence une section courbe.Preferably, at least some of the internal bosses are curved and, for example, they meander on the surface of the panel. Another possible characteristic of the bosses is their twisted profile. In addition, the bosses preferably have a curved section.

Dans les panneaux polygonaux autoportants suivant l'invention l'ensemble des plages situées entre les bossages peut constituer une surface plane ou non plane. Les panneaux de la première catégorie dits panneaux plans, peuvent être notamment triangulaires, carrés ou rectangulaires. Les panneaux de la seconde catégorie ont une structure qui résulte d'une transformation topologique desdits panneaux polygonaux plans. On a constaté que les panneaux de la seconde catégorie présentent des propriétés statiques égales, sinon supérieures, à celles des panneaux plans précités.In the self-supporting polygonal panels according to the invention, all of the areas located between the bosses can constitute a planar or non-planar surface. The panels of the first category, called flat panels, can in particular be triangular, square or rectangular. The panels of the second category have a structure which results from a topological transformation of said planar polygonal panels. It has been found that the panels of the second category have static properties equal, if not superior, to those of the aforementioned flat panels.

A titre d'exemples de surfaces de panneaux de ce dernier type, on citera les surfaces gauches comme les surfaces conoîdes, notamment les surfaces paraboloîdes hyperboliques (PH) bien connues en architecture, on citera également les surfaces sphériques, ellipsoîdales, ovoîdes, ainsi que les surfaces développables comme les surfaces cylindriques ou coniques.By way of examples of surfaces of panels of this latter type, mention will be made of left surfaces such as conoid surfaces, in particular the hyperbolic paraboloid surfaces (PH) well known in architecture, also spherical, ellipsoidal, ovoid surfaces, as well as developable surfaces such as cylindrical or conical surfaces.

Par ailleurs, tous ces panneaux à points d'appui et à surface plane ou non ont l'avantage de pouvoir être combinés entre eux pour créer des structures complexes solides de plus grande portée, les panneaux élémentaires étant fixés entre eux par tous moyens appropriés.Furthermore, all these panels with support points and with a flat surface or not have the advantage of being able to be combined with one another to create solid, complex structures of greater range, the elementary panels being fixed to each other by any appropriate means.

Quelques exemples de panneaux conformes à l'invention seront évoqués ci'après, à titre indicatif en référence au dessin annexé sur lequel:

  • La figure 1 est une vue de dessus d'un panneau triangulaire suivant une mode de l'invention.
  • Les figures 2 et 3 sont des schémas de panneaux triangulaires également conformes à l'invention.
  • La figure 4 est une vue de dessus d'un panneau carré conforme à l'invention.
  • Les figures 5 à 11 sont des schémas d'autres panneaux carrés conformes à l'invention.
  • La figure 12 est une vue de dessus d'un panneau rectangulaire conforme à l'invention.
  • Les figures 13 à 18 sont des schémas d'autres panneaux rectangulaires conformes à l'invention.
  • La figure 19 est une vue en coupe suivant la ligne IXX-IXX de la figure 4.
  • La figure 20 est une vue en coupe suivant la ligne XX-XX de la figure 4.
  • La figure 21 est une vue de dessus d'un bossage utilisable pour les panneaux de l'invention.
  • La figure 22 est une vue en coupe d'un tel bossage.
  • Les figures 23 à 31 sont des schémas de panneaux présentant des configurations élémentaires prohibées conformement à l'invention.
  • Les figures 32 à 34 sont des vues en perspective de panneaux selon l'invention à surface paraboloîde hyperbolique (PH).
  • La figure 35 représente une vue en perspective d'un panneau selon l'invention à surface sphérique.
  • La figure 36 est une vue de dessus d'un assemblage en nappe de panneaux à surface PH.
  • La figure 37 montre en perspective un assemblage en demi-cylindre de panneaux également à surface PH.
Some examples of panels in accordance with the invention will be mentioned below, by way of indication with reference to the appended drawing in which:
  • Figure 1 is a top view of a triangular panel according to one embodiment of the invention.
  • Figures 2 and 3 are diagrams of triangular panels also according to the invention.
  • Figure 4 is a top view of a square panel according to the invention.
  • Figures 5 to 11 are diagrams of other square panels according to the invention.
  • Figure 12 is a top view of a rectangular panel according to the invention.
  • Figures 13 to 18 are diagrams of other rectangular panels according to the invention.
  • FIG. 19 is a sectional view along the line IXX-IXX of FIG. 4.
  • FIG. 20 is a sectional view along line XX-XX of FIG. 4.
  • Figure 21 is a top view of a boss usable for the panels of the invention.
  • Figure 22 is a sectional view of such a boss.
  • Figures 23 to 31 are diagrams of panels having elementary configurations prohibited in accordance with the invention.
  • Figures 32 to 34 are perspective views of panels according to the invention with a hyperbolic paraboloid surface (PH).
  • FIG. 35 represents a perspective view of a panel according to the invention with a spherical surface.
  • FIG. 36 is a top view of a ply assembly of panels with a PH surface.
  • Figure 37 shows in perspective an assembly in half-cylinder of panels also with PH surface.

La présente invention concerne en premier lieu un panneau polygonal 1, par exemple triangulaire, carré ou rectangulaire, spécialement conçu pour supporter des efforts appliqués perpendiculairement à sa surface (c'est-à-dire, en se reportant aux figures 1, 4 et 12 par exemple, perpendiculairement au plan de la feuille de dessin), et pour transmettre ces efforts à des points d'appui (non représentés) sur lesquels le panneau est en appui par ses coins 1a, 1 b, 1 c, 1 d.The present invention relates firstly to a polygonal panel 1, for example triangular, square or rectangular, specially designed to withstand forces applied perpendicular to its surface (that is to say, with reference to Figures 1, 4 and 12 for example, perpendicular to the plane of the drawing sheet), and to transmit these forces to support points (not shown) on which the panel is supported by its corners 1a, 1b, 1c, 1d.

Ce panneau est constitué d'une couche d'épaisseur sensiblement constante d'un matièriau rigide tel qu'un métal comme l'acier ou une matière polymérique rigide, présentant des bossages 2, 3 à section creuse (figures 19, 20, 22) destinés à augmenter la rigidité, ces bossages délimitant, au moins partiellement, des plages 4 planes et sensiblement coplanaires.This panel consists of a layer of substantially constant thickness of a rigid material such as a metal such as steel or a rigid polymeric material, having bosses 2, 3 with hollow section (Figures 19, 20, 22) intended to increase the rigidity, these bosses delimiting, at least partially, areas 4 which are flat and substantially coplanar.

Selon l'invention, l'ensemble des bossages 2, 3 comprend d'une part des bossages périphériques 2 formés au voisinage de tous les bords du panneau, de préférence de manière à relier tous les coins 1 a, 1 b, 1 c, 1 d du panneau, et d'autre part des bossages internes 3 s'étendant, du voisinage des coins du panneau, ou exactement à partir de ces coins, vers l'intérieur du panneau, c'est-à-dire de manière à se rapprocher du centre 5 de ce panneau.According to the invention, the set of bosses 2, 3 comprises on the one hand peripheral bosses 2 formed in the vicinity of all the edges of the panel, preferably so as to connect all the corners 1a, 1b, 1c, 1 d of the panel, and on the other hand internal bosses 3 extending, in the vicinity of the corners of the panel, or exactly from these corners, towards the interior of the panel, that is to say so approach the center 5 of this panel.

Ces bossages internes 3 forment un réseau de bossages interconnectés présentant une densité de distribution sensiblement constante à la surface du panneau, cette régularité de densité se reconnaissant en ce qu'il n'existe pas de plage plane 4, totalement délimitée par des bossages, dont la surface atteigne la moitié de celle du panneau.These internal bosses 3 form a network of interconnected bosses having a substantially constant distribution density on the surface of the panel, this regularity of density being recognized in that there is no flat area 4, totally delimited by bosses, of which the surface reaches half that of the panel.

D'autre part, il est avantageux que les différentes plages de surface et de forme voisines soient disposées autour du centre 5 du panneau suivant une distribution respectant la symétrie du panneau.On the other hand, it is advantageous for the various neighboring surface and shape areas to be arranged around the center 5 of the panel according to a distribution respecting the symmetry of the panel.

Ainsi, si le panneau a une symétrie d'ordre 2 (rectangle), d'ordre 3 (triangle équilatéral), d'ordre 4 (carré), etc..., la répartition des plages de surface analogue à très préférablement une symétrie respective d'ordre 2, d'ordre 3, d'ordre 4, etc.... On peut toutefois aussi adequate- ment prévoir, pour tout panneau ayant une symétrie d'ordre au moins égale à 3, que la répartition des plages analogues ait une symétrie d'ordre multiple ou infini, et, pour tout panneau ayant une symétrie d'ordre au moins égal à 6, que la répartition des plages analogues ait une symétrie d'ordre sous multiple.Thus, if the panel has a symmetry of order 2 (rectangle), of order 3 (equilateral triangle), of order 4 (square), etc., the distribution of the surface areas similar to very preferably a symmetry respectively of order 2, of order 3, of order 4, etc. It can however also be adequately provided, for any panel having a symmetry of order at least equal to 3, that the distribution of the ranges analogues has a symmetry of multiple or infinite order, and, for any panel having a symmetry of order at least equal to 6, that the distribution of the analogous ranges has symmetry of order under multiple.

Par ailleurs, le réseau formé par le bossages internes 3 est tel qu'aucun bossage rectiligne ne s'étende intégralement entre deux bords quelconques du panneau, ni entre deux coins non voisins du panneau, ni entre un bord et un coin non voisins de ce même panneau.Furthermore, the network formed by the internal bosses 3 is such that no rectilinear boss extends entirely between any two edges of the panel, or between two non-neighboring corners of the panel, or between an edge and a corner not neighboring this same panel.

Compte tenu de la difficulté que l'on recon- tre à mettre en évidence d'autres caractéristiques exprimées par des mots, et susceptibles de distinguer les panneaux de l'invention, le présent texte renvoie aux dessins, et notamment aux figures 1 à 18 qui représentent différents modes de réalisation de panneaux rigides.In view of the difficulty encountered in highlighting other characteristics expressed by words, and capable of distinguishing the panels of the invention, the present text refers to the drawings, and in particular to FIGS. 1 to 18 which represent different embodiments of rigid panels.

Le présent texte renvoie également aux figures 23 à 31 qui illustrent des contre- exemples typiques de l'invention, c'est-à-dire des panneaux présentant une rigidité nettement inférieure à celle que présentent les panneaux des figures 1 à 18.This text also refers to FIGS. 23 to 31 which illustrate typical counterexamples of the invention, that is to say panels having a rigidity markedly less than that presented by the panels of FIGS. 1 to 18.

Le panneau de la figure 23 n'appartient pas à l'invention, car il présente au moins un bossage rectiligne s'étendant d'un coin du panneau ou de son voisinage immédiat à un côté non voisin ou à son voisinage immédiat; les panneaux des figures 24, 26, 28, 30 n'appartiennent pas à l'invention, car ils présentent au moins un bossage rectiligne s'étendant entre un bord quelconque du panneau ou son voisinage immédiat et un autre bord quelconque ou son voisinage immédiat; les panneaux des figures 27 et 29 n'appartiennent pas à l'invention car ils présentent au moins un bossage rectiligne s'étendant entre un coin du panneau ou son voisinage immédiat et un coin non voisin, ou son voisinage immédiat; enfin les panneaux des figures 25, 26 et 31 n'appartiennent pas à l'invention car les bossages internes ne sont pas interconnectés, c'est-à-dire au moins extrêmement voisins.The panel of FIG. 23 does not belong to the invention, since it has at least one rectilinear boss extending from a corner of the panel or from its immediate vicinity to a non-neighboring side or to its immediate vicinity; the panels of FIGS. 24, 26, 28, 30 do not belong to the invention, because they have at least one rectilinear boss extending between any edge of the panel or its immediate vicinity and another arbitrary edge or its immediate vicinity ; the panels of Figures 27 and 29 do not belong to the invention because they have at least one rectilinear boss extending between a corner of the panel or its immediate vicinity and a non-neighboring corner, or its immediate vicinity; finally the panels of Figures 25, 26 and 31 do not belong to the invention because the internal bosses are not interconnected, that is to say at least extremely close.

Il faut voir que les figures 23 à 31 illustrent certaines des configurations de base interdites par les caractéristiques précédemment explicitement énoncées.It should be noted that Figures 23 to 31 illustrate some of the basic configurations prohibited by the characteristics previously explicitly stated.

Non seulement il existe une infinité d'autres configurations de base'que ces mêmes caractéristiques explicites permettent d'exclure, mais il est également clair que les combinaisons, par superposition, de configurations interdites sont également interdites.Not only are there an infinity of other basic configurations which these same explicit characteristics make it possible to exclude, but it is also clear that combinations, by overlapping, of prohibited configurations are also prohibited.

A titre d'exemple, on peut ainsi dire que les configurations résultant des superpositions des figures 23 et 24, ou 23 et 25, ou 24 et 25, ou 26 et 27, ou 29 et 30, ou 29, 30 et 31 etc..., sont interdites.By way of example, it can thus be said that the configurations resulting from the superimpositions of FIGS. 23 and 24, or 23 and 25, or 24 and 25, or 26 and 27, or 29 and 30, or 29, 30 and 31 etc. .., are prohibited.

Il est avantageux, pour augmenter la rigidité, de prévoir que les bossages internes 3 aient un trajet courbe, comme on peut le voir sur la figure 1, et, mieux encore, que ces bossages serpentent à la surface du panneau, c'est-à-dire qu'ils passent alternativement de part et d'autre de la direction qu'ils suivent pour former un trajet sinueux, comme on peut notamment le voir sur les figures 3, 7, 8, 17.It is advantageous, in order to increase the rigidity, to provide that the internal bosses 3 have a curved path, as can be seen in FIG. 1, and, better still, that these bosses meander on the surface of the panel, that is to say that is to say that they pass alternately on either side of the direction which they follow to form a sinuous path, as can be seen in particular in FIGS. 3, 7, 8, 17.

De préférence, on évite les croisements de bossages au centre du panneau lorsque ces bossages sont rectilignes; par contre, comme le montre la figure 8, les croisements, au centre, de bossages à trajet sinueux sont tout à fait permis.Preferably, the bosses in the center of the panel are not crossed when these bosses are rectilinear; on the other hand, as shown in FIG. 8, the crossings, in the center, of bosses with sinuous path are quite permitted.

Les figures 19 et 20, qui sont des vues en coupe suivant respectivement les lignes IXX et XX de la figure 4, montrent que les panneaux de l'invention peuvent être collés ou soudés, par leur face montrant l'intérieur des bossages, sur une plaque plane 6 d'un matériau inextensible et de préférence également rigide, tel que le contre-plaqué, l'acier, une substance polymérique, etc. Cette plaque peut également être constituée par un autre panneau conforme à l'invention.Figures 19 and 20, which are sectional views along lines IXX and XX respectively of Figure 4, show that the panels of the invention can be glued or welded, by their side showing the inside of the bosses, on a flat plate 6 of an inextensible and preferably also rigid material, such as plywood, steel, a polymeric substance, etc. This plate can also be formed by another panel according to the invention.

Comme on le voit sur la figure 21 représentant un bossage vu de dessus, et sur la figure 22, représentant ce même bossage vu en coupe suivant la ligne XXII-XXII, les bossages peuvent avoir un profil en torsade. Cette caractéristique permet d'augmenter la résistance à la torsion des bossages et, en conséquence, la rigidité du panneau.As seen in FIG. 21 representing a boss seen from above, and in FIG. 22, representing this same boss seen in section along the line XXII-XXII, the bosses can have a twisted profile. This characteristic makes it possible to increase the torsional resistance of the bosses and, consequently, the rigidity of the panel.

L'invention concerne aussi des panneaux tels que ceux représentés sur les figures 32 à 35 et dont la structure résulte d'une transformation topologique d'un panneau polygonal plan présentant les caractéristiques de bossages rappelées ci-dessus. (Les bossages n'ont pas été représentés sur ces figures pour ne pas les compliquer.The invention also relates to panels such as those shown in FIGS. 32 to 35 and the structure of which results from a topological transformation of a planar polygonal panel having the characteristics of bosses recalled above. (The bosses have not been shown in these figures so as not to complicate them.

Les panneaux ABCD selon la figure 32 et ABC selon la figure 33 sont des panneaux à surface PH dont les contours se projettent respectivement suivant un carré et un triangle; autrement dit, on peut considérer que leur structure résulte d'une transformation topologique de panneaux plans respectivement AiBCiD et DBIC, les bossages de ces panneaux plans subissent également la même transformation.The panels ABCD according to FIG. 32 and ABC according to FIG. 33 are panels with a surface PH whose contours are projected respectively in a square and a triangle; in other words, we can consider that their structure results from a topological transformation of plane panels respectively A i BC i D and DB I C, the bosses of these plane panels also undergo the same transformation.

La figure 34 montre un panneau ABCDEF à surface gauche, dont chaque demi-surface (ABEF et BCDE) est une surface PH qui se projette suivant un trapèze (A1BE1F et BC1DE1).FIG. 34 shows a panel ABCDEF with a left surface, each half of which (ABEF and BCDE) is a surface PH which projects along a trapezoid (A 1 BE 1 F and BC 1 DE 1 ).

Le panneau sphérique ABC (figure 35) se projette selon un triangle équilatéral ou isocèle.The spherical panel ABC (figure 35) projects according to an equilateral or isosceles triangle.

On peut créer toutes sortes de structures à partir des panneaux plans ou non portant les bossages caractéristiques décrits ci-dessus.All kinds of structures can be created from flat or non-planar panels bearing the characteristic bosses described above.

On critera notamment la construction de coupoles. Dans le cas des coupoles sphériques, on assemblera plus spécialement des panneaux plans triangulaires, qui représentent en fait des subdivisions des faces d'un icosaédre et dont le nombre dépend de l'analyse en divisions régulières de l'icosaèdre que l'on souhaite reconstituer (fréquence 2, 3, 4 etc...). Dans de tels assemblages, les bossages périphériques des panneaux élémentaires agissent comme les barres d'une structure portante et renforcent la liaison entre deux éléments adjacents. Il n'est donc pas nécessaire de prévoir l'installation d'une structure portante sur laquelle on vient ensuite adapter des panneaux dits de remplissage. Conformément à la présente invention, chaque panneau élémentaire est une structure auto-portant et les ensembles complexes qu'ils permettent de créer sont donc autoportants.In particular, the construction of cupolas was criteria. In the case of spherical domes, we will more specifically assemble triangular planar panels, which in fact represent subdivisions of the faces of an icosahedron and whose number depends on the analysis in regular divisions of the icosahedron that we wish to reconstruct. (frequency 2, 3, 4 etc ...). In such assemblies, the peripheral bosses of the elementary panels act like the bars of a supporting structure and strengthen the connection between two adjacent elements. It is therefore not necessary to provide for the installation of a bearing structure on which we then adapt so-called filling panels. In accordance with the present invention, each elementary panel is a self-supporting structure and the complex assemblies which they make it possible to create are therefore self-supporting.

D'une façon générale, on peut envisager des constructions- cylindriques ellipso(dales, ovoîdes etc..... Ansi, les figures 36 et 37 présentent des assemblages respectivement en nappe et en demi-cylindre de panneaux à surface PH à projection losange.In general, one can consider ellipso-cylindrical constructions (dales, ovoids etc ..... Ansi, Figures 36 and 37 show assemblies respectively in tablecloth and in half-cylinder of panels with PH surface with diamond projection .

Il est du reste bien entendu que les modes de réalisation décrits ci-dessus ont été donnés à titre d'exemple et que des modifications accessibles, à l'homme de l'art et ne sortant pas du cadre du contenu des revendications peuvent y être apportées sans que l'on s'écarte du domaine de la présente invention.It is, moreover, understood that the embodiments described above have been given by way of example and that modifications accessible, to a person skilled in the art and not going beyond the scope of the content of the claims can be made therein. made without departing from the scope of the present invention.

Claims (10)

1. Polygonal construction panel (1) formed from a layer of a rigid material having a substantially constant thickness and also having a system of interconnected bosses (2, 3), with a hollow section and which serve to increase the rigidity thereof, whilst defining zones (4), the distribution density of the internal bosses (3) being substantially constant on the surface of the panel, characterized in that the system of interconnected bosses (2, 3) comprises peripheral bosses (2) formed along all the edges of the panel (1) and internal bosses (3) extending from the corners of the panel (1) or the vicinity of these corners (1 a-d) in order to converge towards the interior of the panel (1), and in that no boss extends in a straight line between two random edges, or between two non-adjacent corners, or between a non-adjacent edge and corner of the panel whereby as a result of the structure, this panel is rigid, self-supporting and designed to withstand forces applied perpendicularly to its surface and for transmitting them to support points with which it is in contact at, or in the vicinity of its corners (1 a-d).
2. Panel according to claim 1, characterized in that at least some of the internal bosses (3) are curved.
3. Panel according to claim 2, characterized in that at least some of the internal bosses (3) meander on the surface of the panel.
4. Panel according to any one of the claims 1 to 3, characterized in that the bosses (2, 3) have a twisted profile.
5. Panel according to any one of the claims 1 to 4, characterized in that the bosses (2, 3) have a curved section.
6. Panel according to any one of the claims 1 to 5, characterized in that all the zones (4) between the bosses (2, 3) form a planar surface.
7. Panel according to any one of the claims 1 to 5, characterized in that the zones (4) between the bosses (2, 3) constitute a surface which is not planar.
8. Panel according to claim 7, characterized in that its surface is chosen from among the skewed surfaces, such as conoid surfaces, more partioularly hyperbolic paraboloid surfaces; spherical ellipsoidal and ovoid surfaces, and developable surfaces such as cylindrical or conical surfaces.
9. Panel according to any one of the claims 1 to 8, characterized in that the zones (4) defined by the bosses (2, 3) and which have similar surface areas and shapes, are arranged around the centre (5) of the panel (1), in accordance with a distribution respecting the symmetry of panel (1).
10. Complex self-supporting structures consisting of the assembly of panels (1), as defined in any one of the claims 1 to 9.
EP79400258A 1978-04-25 1979-04-24 Panel having stiffening protuberances with hollow sections and structures made therefrom Expired EP0005118B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7812141A FR2424379A1 (en) 1978-04-25 1978-04-25 HOLLOW SECTION RIGIDITY BOSS PANEL
FR7812141 1978-04-25

Publications (3)

Publication Number Publication Date
EP0005118A2 EP0005118A2 (en) 1979-10-31
EP0005118A3 EP0005118A3 (en) 1979-11-14
EP0005118B1 true EP0005118B1 (en) 1984-02-15

Family

ID=9207537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400258A Expired EP0005118B1 (en) 1978-04-25 1979-04-24 Panel having stiffening protuberances with hollow sections and structures made therefrom

Country Status (4)

Country Link
EP (1) EP0005118B1 (en)
JP (1) JPS54152318A (en)
DE (1) DE2966655D1 (en)
FR (1) FR2424379A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605403A (en) * 2016-02-26 2016-05-25 嘉兴云木环保科技有限公司 Slab with hollow cloud wood structure
CN111561120A (en) * 2020-06-02 2020-08-21 浙江云木新材股份有限公司 Environment-friendly flame-retardant integrated wall surface and preparation process thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133795A (en) * 1960-11-30 1964-05-19 Anaconda American Brass Co Rigidized panels

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699599A (en) * 1949-06-08 1955-01-18 Haskelite Mfg Corp Structural sheet
US2639599A (en) * 1949-09-07 1953-05-26 Jr Walker L Wellford Closed system dry cleaning apparatus utilizing volatile solvent
US3133735A (en) * 1960-12-31 1964-05-19 Greenshields William Sinclair Golf club weighting attachment which straddles the club head
FR1462462A (en) * 1965-11-05 1966-04-15 Luchaire Sa Construction panel, and walls made using such panels
FR2387331A1 (en) * 1977-04-14 1978-11-10 Iconomou Constantin Multipurpose rigid building panel - is shaped like regular polygon and rests on static corner supports and incorporates protuberances of various shapes
JPH071216U (en) * 1992-05-18 1995-01-10 健次 西井 Storage stand unit configuration

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133795A (en) * 1960-11-30 1964-05-19 Anaconda American Brass Co Rigidized panels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605403A (en) * 2016-02-26 2016-05-25 嘉兴云木环保科技有限公司 Slab with hollow cloud wood structure
CN105605403B (en) * 2016-02-26 2018-01-26 浙江云木环保科技有限公司 A kind of flat board of the hollow cloud timber structure of band
CN111561120A (en) * 2020-06-02 2020-08-21 浙江云木新材股份有限公司 Environment-friendly flame-retardant integrated wall surface and preparation process thereof

Also Published As

Publication number Publication date
JPS54152318A (en) 1979-11-30
FR2424379A1 (en) 1979-11-23
EP0005118A2 (en) 1979-10-31
DE2966655D1 (en) 1984-03-22
EP0005118A3 (en) 1979-11-14
FR2424379B1 (en) 1980-09-26

Similar Documents

Publication Publication Date Title
CA2349683C (en) Floor-covering panel, wainscot panel or the like
EP1488043A1 (en) Noise abatement wall
EP2252539B1 (en) Anchor for handling construction elements comprising fixed divergent arms
FR2815900A1 (en) NOISE REDUCING SANDWICH PANEL, ESPECIALLY FOR AN AIRCRAFT TURBOREACTOR
FR2719257A1 (en) Reinforced radial tire for trucks.
EP0741215B1 (en) Polycarbonate panels, in particular panels used for roof covering
EP0005118B1 (en) Panel having stiffening protuberances with hollow sections and structures made therefrom
CA2440855C (en) Floor with floating support
FR2638507A1 (en) BASE FOR SAFE FLOORS
EP3083423B1 (en) Container comprising a bottom provided with a varying arch
WO2015082843A1 (en) Sandwich panel comprising a honeycomb structure provided with reinforcements on the edges of said structure
FR2922537A1 (en) BOMBS IN COMPOSITE MATERIAL WITH STIFFENERS
FR3040053A1 (en) DYNAMIC ANCHOR FOR LIFTING A BUILDING ELEMENT, REINFORCED
BE1006304A4 (en) Mattress and method of realization.
EP1479324B1 (en) Support for a multi-element suspension slat of a bed
WO2000056981A1 (en) Artificial block with rough surface
EP2971367B1 (en) Structure for protecting sea and/or river construction work, and protective block used
EP3226236B1 (en) Improvement for accordion
EP3558716B1 (en) Tread for an agricultural vehicle tyre
FR2635349A1 (en) Panel provided with reinforcement stiffeners
EP2666400B1 (en) Cleaning sponge
FR2961075A3 (en) PREFABRICATED WALL ULTRALEGERE
EP2888102B1 (en) Core sheet of structural material, core and structural material having such a sheet
EP3699894A1 (en) Double display with compact structure
FR2748193A1 (en) Chair made from folded cardboard

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE GB IT NL SE

AK Designated contracting states

Designated state(s): BE DE GB IT NL SE

17P Request for examination filed

Effective date: 19810514

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19840215

Ref country code: NL

Effective date: 19840215

REF Corresponds to:

Ref document number: 2966655

Country of ref document: DE

Date of ref document: 19840322

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19840620

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19840630

Year of fee payment: 6

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: ICONOMOU CONSTANTIN

Effective date: 19870430

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19880101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890430