FR2588507A1 - Wood-based high-strength composite panel - Google Patents

Wood-based high-strength composite panel Download PDF

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Publication number
FR2588507A1
FR2588507A1 FR8515191A FR8515191A FR2588507A1 FR 2588507 A1 FR2588507 A1 FR 2588507A1 FR 8515191 A FR8515191 A FR 8515191A FR 8515191 A FR8515191 A FR 8515191A FR 2588507 A1 FR2588507 A1 FR 2588507A1
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FR
France
Prior art keywords
sheets
network
wood
fibers
panel according
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.)
Withdrawn
Application number
FR8515191A
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French (fr)
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DEUDON FREDERIC
Original Assignee
DEUDON FREDERIC
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 DEUDON FREDERIC filed Critical DEUDON FREDERIC
Priority to FR8515191A priority Critical patent/FR2588507A1/en
Publication of FR2588507A1 publication Critical patent/FR2588507A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—Next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/20—Integral or sandwich constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/38—Meshes, lattices or nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/16—Wood, e.g. woodboard, fibreboard, woodchips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Abstract

This composite panel, based on sheets of wood disposed with grains crossed, comprises a sheet of a wide-meshed network of filaments or of fibres which is sandwiched and bonded between two sheets 1, 2 of thin wood, the filaments of the said network 3 themselves being oblique with respect to the direction of the grain of each of the said sheets.

Description

La présente invention est relative à un matériau composite à haute résistance, à base de bois, utilisable dans tous les domaines techniques où lton recherche des propriétés élevées de légèreté, de résistance et de rigidité. The present invention relates to a high-strength composite material, based on wood, usable in all technical fields where we are looking for high properties of lightness, resistance and rigidity.

Dans de nombreux domaines, par exemple la construction aéronautique et en particulier dans celui de l'aviation légère, on recherehe un matériau de construction de faible épaisseur présentant de telles propriétés et en outre susceptible d'être courbé afin de produire les formes galbées imposées par les profils aérodynamiques. In many fields, for example aeronautical construction and in particular in that of light aviation, we are looking for a thin building material having such properties and also capable of being bent in order to produce the curved shapes imposed by aerodynamic profiles.

On a largement utilisé dans ce domaine des panneaux stratifiés formés de feuilles de bois minces contre-collées, depuis le "contre-plaqué" classique simple à trois couches jusqu a des panneaux de fabrication plus complexe comprenant de nombreuses couches de bois d'essences différentes apportant chacune ses qualités propres, mais la fabrication de ces panneaux s'est le plus souvent révélée compliquée et par conséquent coûteuse. Laminated panels formed from laminated thin sheets of wood have been widely used in this field, from the simple classic plywood with three layers to panels of more complex manufacture comprising many layers of wood of different species. each bringing its own qualities, but the manufacture of these panels has most often proved to be complicated and therefore expensive.

Par ailleurs, le procédé de construction consistant à poser et coller successivement plusieurs feuilles de bois minces les unes sur les autres, à fils croisés, est long, minutieux et délicat et par suite coûteux et l'on observe parfois des décollements localisés nuisibles. Furthermore, the construction process consisting of laying and successively sticking several sheets of thin wood one on top of the other, with crossed wires, is long, meticulous and delicate and consequently costly and sometimes detrimental localized detachments are observed.

L'invention a pour but de remédier à ces inconvénients en fournissant un panneau de construction à base de bois qui soit à la fois léger et résistant, présente des propriétés de rigidité tout en pouvant être incurvé, et soit de fabrication simple sans un outillage important et par conséquent peu coûteux. The object of the invention is to remedy these drawbacks by providing a wood-based construction panel which is both light and resistant, has stiffness properties while being curved, and which is simple to manufacture without significant tools. and therefore inexpensive.

Elle a pour objet à cet effet un panneau composite à base de feuilles de bois disposées à fils croisés, caractérisé en ce qu'il comprend une feuille d'un réseau de fils ou de fibres à larges mailles intercalé et collé entre deux feuilles de bois mince, les fils dudit réseau étant eux-mêmes obliques par rapport au sens du fil de chacune desdites feuilles. It has for this purpose a composite panel based on sheets of wood arranged with crossed threads, characterized in that it comprises a sheet of a network of threads or fibers with large meshes interposed and glued between two sheets of wood thin, the wires of said network being themselves oblique to the direction of the wire of each of said sheets.

Suivant une autre caractéristique de l'invention, le réseau à larges mailles est formé d'un tissu, d'un treillis ou d'une grille en fils ou fibres organiques, minéraux ou synthétiques. According to another characteristic of the invention, the wide mesh network is formed of a fabric, a lattice or a grid of organic, mineral or synthetic threads or fibers.

D'une façon avantageuse la colle utilisée est une résine synthétique polymérisable. Advantageously, the adhesive used is a polymerizable synthetic resin.

La description qui va suivre, en regard du dessin annexé à titre d'exemple non limitatif permettra de bien comprendre comment l'invention peut être mise en pratique. The description which follows, with reference to the attached drawing by way of nonlimiting example, will make it possible to understand clearly how the invention can be put into practice.

La figure 1 est une vue en perspective avec arrachement d'un morceau de panneau composite suivant l'invention. Figure 1 is a perspective view with cutaway of a piece of composite panel according to the invention.

La figure 2 en est une vue en coupe. Figure 2 is a sectional view.

En se référant au dessin le panneau composite suivant l'invention est formé d'une première feuille 1 de bois mince, et d'une seconde feuille de bois mince 2 dont les fils sont orientés à 900 l'un par rapport à l'autre. Referring to the drawing, the composite panel according to the invention is formed from a first sheet 1 of thin wood, and from a second sheet of thin wood 2, the wires of which are oriented at 900 relative to each other. .

Entre les deux feuilles 1 et 2 est disposée une feuille formée d'un réseau 3 à larges mailles, par exemple du type canevas, collée sur les deux feuilles de bois 1 et 2 au moyen d'une couche 4 d'un adhésif approprié qui peut avantageusement être, par exemple, une résine synthétique polymérisable. Between the two sheets 1 and 2 is disposed a sheet formed of a network 3 with large meshes, for example of the canvas type, glued to the two sheets of wood 1 and 2 by means of a layer 4 of an appropriate adhesive which can advantageously be, for example, a polymerizable synthetic resin.

La quantité d'adhésif doit être suffisante pour imprégner complètement le tissu, mais sans excédent formant surépaisseur.  The quantity of adhesive must be sufficient to completely impregnate the fabric, but without any excess forming extra thickness.

La feuille 3 est disposée de façon que ses fils de trame et de chaine soient orientés à 45 par rapport aux sens des fils des feuilles de bois 1 et 2 respectivement. The sheet 3 is arranged so that its weft and warp threads are oriented at 45 relative to the directions of the threads of the wooden sheets 1 and 2 respectively.

On peut utiliser un tissu en fils ou fibres textiles minérales ou synthétiques à larges mailles, un filet, une grille en matière plastique ou tout autre treillis ou réseau de fibres libres, présentant un écartement ou formant des mailles suffisantes afin que l'adhésif puisse assurer la liaison des feuilles 1 et 2 entre les fils ou fibres tout en les liant à ces feuilles. Le séchage ou la polymérisation peuvent être effectués sous pression. You can use a fabric of mineral or synthetic textile threads or fibers with large meshes, a net, a plastic grid or any other lattice or network of free fibers, having a spacing or forming sufficient meshes so that the adhesive can ensure the bonding of sheets 1 and 2 between the wires or fibers while binding them to these sheets. Drying or polymerization can be carried out under pressure.

Dans le cas où le matériau est destiné à supporter des efforts en flexion, on peut utiliser un réseau unidirectionnel de fils ou de fibres à peu près parallèles. In the case where the material is intended to withstand bending forces, it is possible to use a unidirectional network of roughly parallel wires or fibers.

Le matériau composite suivant l'invention peut être réalisé en toutes épaisseurs, et en toutes dimensions ou à couches multiples, aussi bien de façon industrielle que directement par l'utilisateur suivant ses besoins, à partir de bois dit "déroulé" et de tissus naturels ou synthétiques, en utilisant une colle à bois classique, tous ces matériaux étant disponibles dans le commerce.  The composite material according to the invention can be produced in all thicknesses, and in all dimensions or with multiple layers, both industrially and directly by the user according to his needs, from so-called "peeled" wood and natural fabrics or synthetic, using conventional wood glue, all of these materials being commercially available.

Claims (6)

REVENDICATIONS 1. Panneau de matériau composite à base de feuilles de bois disposées à fils croisés, caractérisé en ce qu'il comprend une feuille d'un réseau de fils ou de fibres à larges mailles intercalé et collé entre deux feuilles de bois mince (1,2), les fils dudit réseau (3) étant eux-memes obliques par rapport au sens du fil de chacune desdites feuilles. 1. A panel of composite material based on sheets of wood arranged with crossed threads, characterized in that it comprises a sheet of a network of threads or fibers with large meshes interposed and glued between two sheets of thin wood (1, 2), the wires of said network (3) being themselves oblique with respect to the direction of the wire of each of said sheets. 2. Panneau suivant la revendication 1, caractérisé en ce que le réseau à larges mailles est formé d'un tissu, d'un treillis ou d'une grille en fils ou fibres organiques minéraux ou synthétiques. 2. Panel according to claim 1, characterized in that the wide mesh network is formed of a fabric, a lattice or a grid of organic or mineral or synthetic fibers or yarns. 3. Panneau suivant la revendication 1, caractérisé en ce que la colle utilisée est une résine synthétique polymérisable. 3. Panel according to claim 1, characterized in that the adhesive used is a polymerizable synthetic resin. 4. Panneau suivant la revendication 2, caractérisé en ce que ledit réseau présente de larges mailles. 4. Panel according to claim 2, characterized in that said network has large meshes. 5. Panneau suivant la revendication 4, caractérisé en ce que les fils ou fibres dudit réseau sont orientés à 2450 par rapport à la direction du fil de chacune desdites feuilles (1 et 2). 5. Panel according to claim 4, characterized in that the son or fibers of said network are oriented at 2450 relative to the direction of the wire of each of said sheets (1 and 2). 6. Panneau suivant la revendication 1, caractérisé en ce que ledit réseau est formé de fils ou de fibres à peu près parallèles.  6. Panel according to claim 1, characterized in that said network is formed of approximately parallel wires or fibers.
FR8515191A 1985-10-14 1985-10-14 Wood-based high-strength composite panel Withdrawn FR2588507A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8515191A FR2588507A1 (en) 1985-10-14 1985-10-14 Wood-based high-strength composite panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8515191A FR2588507A1 (en) 1985-10-14 1985-10-14 Wood-based high-strength composite panel

Publications (1)

Publication Number Publication Date
FR2588507A1 true FR2588507A1 (en) 1987-04-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564044A1 (en) * 1992-03-31 1993-10-06 Bruynzeel Multipanel B.V. Impact-resistant plywood and method for the manufacture thereof
FR2725149A1 (en) * 1994-10-04 1996-04-05 Profichet Richard Nicolas Jean Mfr. of curved plywood panels which retain their shape after binding
EP0832736A2 (en) * 1996-09-13 1998-04-01 Mario Caporello Process for the realisation of a wooden stratified panel of the reinforced type and panel thus obtained
US6033754A (en) * 1996-08-20 2000-03-07 Fiber Technologies, Inc. Reinforced laminated veneer lumber

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428325A (en) * 1942-10-30 1947-09-30 Owens Corning Fiberglass Corp Reinforced plywood
FR931005A (en) * 1943-05-26 1948-02-11 Improvements to laminated materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428325A (en) * 1942-10-30 1947-09-30 Owens Corning Fiberglass Corp Reinforced plywood
FR931005A (en) * 1943-05-26 1948-02-11 Improvements to laminated materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564044A1 (en) * 1992-03-31 1993-10-06 Bruynzeel Multipanel B.V. Impact-resistant plywood and method for the manufacture thereof
FR2725149A1 (en) * 1994-10-04 1996-04-05 Profichet Richard Nicolas Jean Mfr. of curved plywood panels which retain their shape after binding
US6033754A (en) * 1996-08-20 2000-03-07 Fiber Technologies, Inc. Reinforced laminated veneer lumber
EP0832736A2 (en) * 1996-09-13 1998-04-01 Mario Caporello Process for the realisation of a wooden stratified panel of the reinforced type and panel thus obtained
EP0832736A3 (en) * 1996-09-13 1999-05-06 Mario Caporello Process for the realisation of a wooden stratified panel of the reinforced type and panel thus obtained

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