WO1998048133A1 - Synthetic fabric with directional reinforcing elements - Google Patents

Synthetic fabric with directional reinforcing elements Download PDF

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Publication number
WO1998048133A1
WO1998048133A1 PCT/CH1998/000151 CH9800151W WO9848133A1 WO 1998048133 A1 WO1998048133 A1 WO 1998048133A1 CH 9800151 W CH9800151 W CH 9800151W WO 9848133 A1 WO9848133 A1 WO 9848133A1
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WO
WIPO (PCT)
Prior art keywords
synthetic
reinforcing
fabric
reinforcing elements
threads
Prior art date
Application number
PCT/CH1998/000151
Other languages
French (fr)
Inventor
Gérard GAUTIER
Edouard Kessi
Original Assignee
Gautier Gerard
Edouard Kessi
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 Gautier Gerard, Edouard Kessi filed Critical Gautier Gerard
Publication of WO1998048133A1 publication Critical patent/WO1998048133A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/54—Covers of tents or canopies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/067—Sails characterised by their construction or manufacturing process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/067—Sails characterised by their construction or manufacturing process
    • B63H9/0678—Laminated sails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B29K2105/108—Oriented arranged in parallel planes and crossing at substantial angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/005—Tarpaulins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7126—Containers; Packaging elements or accessories, Packages large, e.g. for bulk storage

Definitions

  • the present invention relates to a synthetic fabric with directional reinforcing elements, and more particularly to a synthetic fabric comprising reinforcing elements which are constituted by synthetic ribbons which are reinforced by threads, the synthetic ribbons and the threads being assembled to the canvas by fusion.
  • Synthetic fabrics can be used in many fields, for example in replacement of roofs, to protect a place from bad weather and the effects of the sun. Synthetic fabrics can also be used for the manufacture of boat sails, for example.
  • the canvases In the field of tent canvases used for exhibitions or events, the canvases are mounted on frames, which are designed to take over all the efforts, for example the efforts caused by wind or snow, the canvases used being intended only as a cover and not presenting a resistance which could make it possible to take over part of the efforts of the structure.
  • the aims of the present invention therefore consist in remedying the aforementioned drawbacks of the known embodiments.
  • the fabric with directional reinforcing elements comprises a fabric of synthetic material, for example of fluoroplast material, PVC or polyethylene. Reinforcement elements are mounted on the canvas. These reinforcing elements are constituted by extruded synthetic ribbons in which reinforcing threads are mounted during extrusion.
  • the reinforcing threads can consist of threads of glass fibers, carbon fibers, aramid fiber or synthetic fibers, for example.
  • the synthetic ribbons are extruded with a material identical to the material constituting the canvas. Once the mounting of each ribbon with the reinforcing threads, the ribbon is assembled to the canvas by fusion. The materials making up the canvas and the synthetic ribbons are compatible. and can therefore be assembled by fusion. Once joined together by fusion, the synthetic ribbons and the reinforcing threads constitute one-piece reinforcing elements with the canvas.
  • the principles of the invention have many advantages.
  • a very important advantage is constituted by the fact that the reinforcing tapes and wires can be mounted flat and in two dimensions on the canvas. Their arrangement in two dimensions is determined by the acting forces and also determines the shape of the third dimension by elastic deformation.
  • Another advantage is constituted by the fact that the laying of the different elements, flat, therefore in two dimensions, eliminates the need to use three-dimensional forming jigs which would be much too expensive and much too bulky to produce canvases. very large dimensions.
  • the principles of the invention therefore make it possible to easily produce and for reduced equipment costs, reinforced fabrics which can, due to their design, take a large part of the efforts and therefore significantly reduce the costs of the annexed structures.
  • the principles of the invention make it possible to eliminate all the gluing operations, which provides a significant improvement in working conditions.
  • the reinforcing elements can be superimposed on each other which provides an important advantage, particularly at the corners of the fabric where several reinforcing elements converge.
  • Figures 1 and 2 are respectively side and top views of a triangular fabric mounted on a frame.
  • Figure 3 is a sectional view of a reinforcing element shown during installation.
  • Figure 4 is a sectional view of a reinforcement element after fusion.
  • Figure 5 is a plan view of a reinforcing member.
  • Figures 6 and 7 are respectively sectional and plan views of overlapping reinforcing elements.
  • a synthetic fabric 1 is mounted on a frame 2 which is supported by pillars 3, 4 and 5.
  • the synthetic fabric which comprises reinforcing elements 7, 8 and 9 which are provided to support part of the forces.
  • the reinforcing elements are arranged so as to act in the direction of the acting forces.
  • Figures 1 and 2 are shown by way of example. The principles of the invention can be applied for all kinds of synthetic fabrics of different shapes, and also for fabrics not resting on any frame and being simply fixed to each corner.
  • Figures 3, 4 and 5 show in detail a reinforcing element which is constituted by reinforcing son 11 and 12, for example, which are integrated in a synthetic tape 10, during the extrusion of the tape.
  • the synthetic ribbons are extruded with a synthetic material compatible with the material constituting the fabric, and reinforcing threads are integrated into the synthetic ribbons during extrusion.
  • Each synthetic tape is then placed on the canvas flat and in orientations which are determined by ⁇ the direction of the forces which may act on the canvas.
  • the ribbon is mounted on the canvas, it is assembled to the canvas by fusion.
  • each ribbon constitutes a one-piece reinforcing element with the canvas and with the reinforcing threads.
  • the reinforcing threads can be made of different materials, glass fiber, carbon fiber, aramid fiber or synthetic fiber, for example.
  • Figures 6 and 7 show reinforcing elements which are partially superimposed on each other. All aboid of the synthetic tape 10 comprising the reinforcement wires 11, is welded by fusion on the fabric 1. Then another synthetic tape 13 which includes the reinforcement wires 14 is welded by fusion on the fabric 1 and partly on synthetic tape 10.
  • the superimposition of reinforcing elements may be necessary on certain portions of the fabric depending on the direction of the acting forces, and this superposition also occurs in the corners of the fabric where several reinforcing elements converge.
  • the principles of the invention make it possible to obtain very good homogeneity by the fact that, in the event of the superimposition of the reinforcing elements, each synthetic tape is welded by fusion to the lower tape.
  • the reinforcing elements first of all have an essential function which consists in taking charge of the forces acting on the canvas. Another important function of the reinforcing elements is that they make it possible, according to particular arrangements, to make the canvas take on particular shapes, by elastic deformation.
  • the fusion of the synthetic ribbons to the fabric can be obtained by various devices making it possible to heat the ribbons to the melting and assembly temperature, by direct action of the heating body or by hot air, for example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Composite Materials (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)

Abstract

The invention concerns a synthetic fabric with directional reinforcing elements comprising reinforcing elements consisting of synthetic strips (10) extruded in a material compatible with that constituting the synthetic fabric (1) and reinforced with reinforcing yarns (11, 12) integrated into the synthetic strips during extrusion. The synthetic strips (10) are assembled to the fabric (1) by fusion such that, after fusion, the synthetic strips and the reinforcing yarns constitute a single-piece reinforcing structure integrated in the fabric. The reinforcing elements are oriented according to the forces acting on the fabric and according to the geometrical shape of the three-dimensional fabric.

Description

TOILE SYNTHETIQUE AVEC ELEMENTS DE RENFORCEMENT DIRECTIONNELSSYNTHETIC FABRIC WITH DIRECTIONAL REINFORCEMENT ELEMENTS
La présente invention se rapporte à une toile synthétique avec éléments de renforcement directionnels, et plus particulièrement à une toile synthétique comportant des éléments de renforcement qui sont constitués par des rubans synthétiques qui sont renforcés par des fils, les rubans synthétiques et les fils étant assemblés à la toile par fusion.The present invention relates to a synthetic fabric with directional reinforcing elements, and more particularly to a synthetic fabric comprising reinforcing elements which are constituted by synthetic ribbons which are reinforced by threads, the synthetic ribbons and the threads being assembled to the canvas by fusion.
Les toiles synthétiques peuvent être utilisées dans de nombreux domaines, par exemple en replacement de toitures, pour protéger un endroit des intempéries et des effets du soleil. Les toiles synthétiques peuvent également être utilisées pour la fabrication de voiles de bateaux, par exemple. Dans le domaine des toiles de tentes utilisées pour les expositions ou manifestations, les toiles sont montées sur des armatures, qui sont prévues pour prendre en charge la totalité des efforts, par exemple les efforts provoqués par le vent ou par de la neige, les toiles utilisées n'étant prévues que comme couverture et ne présentant pas une résistance qui pourrait permettre de prendre en charge une partie des efforts de la structure.Synthetic fabrics can be used in many fields, for example in replacement of roofs, to protect a place from bad weather and the effects of the sun. Synthetic fabrics can also be used for the manufacture of boat sails, for example. In the field of tent canvases used for exhibitions or events, the canvases are mounted on frames, which are designed to take over all the efforts, for example the efforts caused by wind or snow, the canvases used being intended only as a cover and not presenting a resistance which could make it possible to take over part of the efforts of the structure.
La conception des toiles connues limite les possibilités d'utilisation ainsi que. les possibilités de formes esthétiques. La conception des toiles connues présente également des limitations au point de vue dimension, dans la mesure où des toiles de très grandes dimensions peuvent subir des efforts très importants .The design of known fabrics limits the possibilities of use as well as. the possibilities of aesthetic forms. The design of known fabrics also has limitations from the point of view of dimension, insofar as very large fabrics can undergo very great efforts.
Afin de pouvoir concevoir des constructions particulières et de grandes dimensions avec des toiles, il est nécessaire que celles-ci puissent prendre une partie ou la totalité des efforts, c'est-à-dire que les toiles doivent comporter des éléments de renforcement qui peuvent être disposés dans la direction des efforts .In order to be able to design particular and large constructions with fabrics, it is necessary that these can take part or all of the efforts, that is to say that the fabrics must include reinforcing elements which can be arranged in the direction of efforts.
Des formes d'exécutions de toiles renforcées sont connues dans le domaine des voiles de bateaux, par exemple, ais ces formes d'exécutions présentent dos inconvénients importants. Ces formes d'exécutions comportent en effet deux toiles qui sont destinées à être assemblées entre-elles par collage, des fils de renforcement étant montés entre les deux toiles de manière à constituer une structure composite en sandwich. Les opérations de montage et d'encollage des fils de renforcement, ainsi que les opérations d'assemblage de l'ensemble de la structure composite, sont des opérations très compliquées qui présentent les inconvénients importants de nécessiter des équipements et gabarits très coûteux, ainsi que des teirφs d'opérations très longs. Un autre inconvénient important des formes d'exécutions connues est constitué par le fait qu'elles nécessitent deux toiles rapportées entre elles ce qui augmente considérablement les coûts par le fait que ces formes d'exécutions doublent le coût des toiles.Forms of execution of reinforced fabrics are known in the field of boat sails, for example, but these forms of execution have significant drawbacks. These forms of executions in fact comprise two fabrics which are intended to be assembled together by gluing, reinforcing wires being mounted between the two fabrics so as to constitute a sandwich sandwich structure. The operations of mounting and gluing the reinforcing wires, as well as the operations of assembling the whole of the composite structure, are very complicated operations which have the significant disadvantages of requiring very expensive equipment and templates, as well as very long operations. Another major drawback of the known forms of execution is the fact that they require two fabrics attached to each other which considerably increases the costs by the fact that these forms of executions double the cost of the fabrics.
De plus, ces formes d ' excécutions connues nécessitent des équipements très volumineux qui sont en conséquence difficilement déplaçαbles .In addition, these known forms of execution require very bulky equipment which is consequently difficult to move.
Les buts de la présente invention consistent donc à remédier aux inconvénients précités des formes d'exécutions connues.The aims of the present invention therefore consist in remedying the aforementioned drawbacks of the known embodiments.
Les buts sont atteints avec les principes de l'invention tels que définis par la revendication 1.The objects are achieved with the principles of the invention as defined by claim 1.
La toile avec éléments de renforcement directionnels, selon les principes de l'invention, comporte une toile en matière synthétique, par exemple en matière fluor thermoplast, en PVC ou en polyéthylène . Des éléments de renforcement sont montés sur la toile. Ces éléments de renforcement sont constitués par des rubans synthétiques extrudés dans lesquels des fils de renforcement sont montés lors de l'extrusion. Les fils de renforcement peuvent être constitués par des fils de fibres de verre, de fibres de carbone, de fibre d'aramide ou de fibres synthétiques, par exemple. Les rubans synthétiques sont extrudés avec une matière identique à la matière constituant la toile. Une fois le montage de chaque ruban effectué avec les fils de renforcement, le ruban est assemblé à la toile par fusion. Les matériaux constituant la toile et les rubans synthétiques sont compati blcr. et peuvent donc être assemblés par fusion. Une fois assemblés entre eux par fusion, les rubans synthétiques et les fils de renforcement constituent des éléments de renforcement monobloc avec la toile.The fabric with directional reinforcing elements, according to the principles of the invention, comprises a fabric of synthetic material, for example of fluoroplast material, PVC or polyethylene. Reinforcement elements are mounted on the canvas. These reinforcing elements are constituted by extruded synthetic ribbons in which reinforcing threads are mounted during extrusion. The reinforcing threads can consist of threads of glass fibers, carbon fibers, aramid fiber or synthetic fibers, for example. The synthetic ribbons are extruded with a material identical to the material constituting the canvas. Once the mounting of each ribbon with the reinforcing threads, the ribbon is assembled to the canvas by fusion. The materials making up the canvas and the synthetic ribbons are compatible. and can therefore be assembled by fusion. Once joined together by fusion, the synthetic ribbons and the reinforcing threads constitute one-piece reinforcing elements with the canvas.
Les principes de l'invention présentent de nombreux avantages. Un avantage très important est constitué par le fait que les rubans et fils de renforcement peuvent être montés à plat et en deux dimensions sur la toile. Leur disposition en deux dimensions est déterminée par les efforts agissant et détermine également la forme de la troisième dimension par déformation élastique. Un autre avantage est constitué par le fait que la pose des différents éléments, à plat, donc en deux dimensions, supprime la nécessité d'utiliser des gabarits de formage en trois dimensions qui seraient beaucoup trop coûteux et beaucoup trop volumineux pour réaliser des toiles de très grandes dimensions. Les principes de l'invention permettent donc de réaliser facilement et pour des coûts d'équipements réduits, des toiles renforcées qui peuvent, de part leur conception, prendre une grande partie des efforts et donc réduire d'une manière importante les coûts des structures annexes, tout en permettant en plus de réaliser des formes ou designs de toutes sortes. Les principes de l'invention permettent de supprimer toutes les opérations d'encollage ce qui procure une amélioration importante des conditions de travail. De plus, selon les principes de l'invention, les éléments do renforcement peuvent être superposés les uns sur les autres ce qui procure un avantage important, paticulièrement aux coins do la toile où plusieurs éléments de renforcement convergent.The principles of the invention have many advantages. A very important advantage is constituted by the fact that the reinforcing tapes and wires can be mounted flat and in two dimensions on the canvas. Their arrangement in two dimensions is determined by the acting forces and also determines the shape of the third dimension by elastic deformation. Another advantage is constituted by the fact that the laying of the different elements, flat, therefore in two dimensions, eliminates the need to use three-dimensional forming jigs which would be much too expensive and much too bulky to produce canvases. very large dimensions. The principles of the invention therefore make it possible to easily produce and for reduced equipment costs, reinforced fabrics which can, due to their design, take a large part of the efforts and therefore significantly reduce the costs of the annexed structures. , while also making it possible to produce shapes or designs of all kinds. The principles of the invention make it possible to eliminate all the gluing operations, which provides a significant improvement in working conditions. In addition, according to the principles of the invention, the reinforcing elements can be superimposed on each other which provides an important advantage, particularly at the corners of the fabric where several reinforcing elements converge.
Les dessins annexés illustrent schématiquement et à titre d'exemple les principes de l'invention.The accompanying drawings illustrate schematically and by way of example the principles of the invention.
Les figures 1 et 2 sont respectivement des vues de côtés et de dessus d'une toile triangulaire montée sur une armature.Figures 1 and 2 are respectively side and top views of a triangular fabric mounted on a frame.
La figure 3 est une vue en coupe d'un élément de renforcement montré lors de la pose.Figure 3 is a sectional view of a reinforcing element shown during installation.
La figure 4 est une vue en coupe d'un élément de renforcement après fusion.Figure 4 is a sectional view of a reinforcement element after fusion.
La figure 5 est une vue en plan d'un élément de renforcement.Figure 5 is a plan view of a reinforcing member.
Les figures 6 et 7 sont respectivement des vues en coupe et en plan d'éléments de renforcement se chevauchant.Figures 6 and 7 are respectively sectional and plan views of overlapping reinforcing elements.
En référence tout d'abord aux figures 1 et 2, une toile synthétique 1, est montée sut une armature 2 qui est soutenue par des piliers 3, 4 et 5. Selon les principes de la construction montrée à titre d'exemple et présentant une toile triangulaire, une partie des efforts de traction sont pris en charge par la toile synthétique qui comporte des éléments de renforcement 7, 8 et 9 qui sont prévus pour prendre en charge une partie des efforts. Les éléments de renforcement, dont le nombre est déterminé par la dimension de la toile et par l'importance des efforts agissant, sont disposés de manière à agir dans la direction des efforts agissant. Les figures 1 et 2 sont montrées à titre d'exemple. Les principes de l'invention peuvent être appliqués pour toutes sortes de toiles synthétiques de différentes formes, et également pour des toiles ne reposant sur aucune armature et étant simplement fixées à chaque coin.Referring first to Figures 1 and 2, a synthetic fabric 1 is mounted on a frame 2 which is supported by pillars 3, 4 and 5. According to the principles of construction shown by way of example and having a triangular fabric, part of the tensile forces are supported by the synthetic fabric which comprises reinforcing elements 7, 8 and 9 which are provided to support part of the forces. The reinforcing elements, the number of which is determined by the size of the fabric and by the magnitude of the acting forces, are arranged so as to act in the direction of the acting forces. Figures 1 and 2 are shown by way of example. The principles of the invention can be applied for all kinds of synthetic fabrics of different shapes, and also for fabrics not resting on any frame and being simply fixed to each corner.
Les figures 3, 4 et 5 montrent en détail un élément de renforcement qui est constitué par des fils de renforcement 11 et 12, par exemple, qui sont intégrés dans un ruban synthétique 10, lors de l'extrusion du ruban. Dans la pratique, les rubans synthétiques sont extrudés avec une matière synthétique compatible avec la matière constituant la toile, et des fils de renforcement sont intégrés aux rubans synthétiques lors de l'extrusion. Chaque ruban synthétique est alors disposé sur la toile à plat et selon des orientations qui sont déterminées par¬ la direction des efforts qui pourront agir sur la toile. Une fois le ruban monté sur la toile, il est assemblé à la toile par fusion. Un fois assemblé à la toilo, chaque ruban constitue un élément de renforcement monobloc avec le toile et avec les fils de renforcement .Figures 3, 4 and 5 show in detail a reinforcing element which is constituted by reinforcing son 11 and 12, for example, which are integrated in a synthetic tape 10, during the extrusion of the tape. In practice, the synthetic ribbons are extruded with a synthetic material compatible with the material constituting the fabric, and reinforcing threads are integrated into the synthetic ribbons during extrusion. Each synthetic tape is then placed on the canvas flat and in orientations which are determined by ¬ the direction of the forces which may act on the canvas. Once the ribbon is mounted on the canvas, it is assembled to the canvas by fusion. Once assembled to the canvas, each ribbon constitutes a one-piece reinforcing element with the canvas and with the reinforcing threads.
Les fils de renforcement peuvent être réalisés en différentes matières, en fibre de verre, fibre de carbone, fibre d'arαmide ou fibre synthétique, par exemple.The reinforcing threads can be made of different materials, glass fiber, carbon fiber, aramid fiber or synthetic fiber, for example.
Les figures 6 et 7 montrent des éléments de renforcement qui sont superposés en partie l'un sur l'autre. Tout d'aboid le ruban synthétique 10 comportant les fils de ren orcement 11, est soudé par fusion sur la toile 1. Ensuite un autre ruban synthétique 13 qui comporte les fils de renforcement 14 est soudé par fusion sur la toile 1 et en partie sur le ruban synthétique 10. La superposition d'éléments de renforcement peut être nécessaire sur certaines portions de la toile en fonction de la direction des efforts agissant, et cette superposition intervient aussi dans les coins de la toile où plusieurs élément de renforcement convergent. Les principes de l'invention permettent d'obtenir une très bonne homogénéité par le fait, qu'en cas de superposition des éléments de renforcement, chaque ruban synthétique est soudé par fusion au ruban inférieur.Figures 6 and 7 show reinforcing elements which are partially superimposed on each other. All aboid of the synthetic tape 10 comprising the reinforcement wires 11, is welded by fusion on the fabric 1. Then another synthetic tape 13 which includes the reinforcement wires 14 is welded by fusion on the fabric 1 and partly on synthetic tape 10. The superimposition of reinforcing elements may be necessary on certain portions of the fabric depending on the direction of the acting forces, and this superposition also occurs in the corners of the fabric where several reinforcing elements converge. The principles of the invention make it possible to obtain very good homogeneity by the fact that, in the event of the superimposition of the reinforcing elements, each synthetic tape is welded by fusion to the lower tape.
Les éléments de renforcement ont tout d'abord une fonction essentielle qui consiste à prendre en charge les efforts agissant sur la toile. Une autre fonction importante des éléments de renforcement est qu'ils permettent, selon des dispositions particulières, de faire prendre à la toile des formes particulières, par déformation élastique.The reinforcing elements first of all have an essential function which consists in taking charge of the forces acting on the canvas. Another important function of the reinforcing elements is that they make it possible, according to particular arrangements, to make the canvas take on particular shapes, by elastic deformation.
La fusion des rubans synthétiques à la toile peut être obtenues par divers dispositifs permettant de chauffer les rubans à la température de fusion et d'assemblage, par action directe de corps de chauffe ou par air chaud, par exemple. The fusion of the synthetic ribbons to the fabric can be obtained by various devices making it possible to heat the ribbons to the melting and assembly temperature, by direct action of the heating body or by hot air, for example.

Claims

REVENDICATIONS
1. Toile synthétique avec éléments de renforcement directionnels comportant des éléments de renforcement qui sont disposés de manière à prendre en charge les efforts agissant sur la toile synthétique, caractérisée par le fait que les éléments de renforcement sont constitués par des rubans synthétiques (10) qui sont extrudés dans une matière synthétique qui est compatible avec la matière synthétique constituant la toile (1) et qui sont renforcés par des fils de renforcement (11, 12) qui sont intégrés aux rubans synthétiques lors de l'extrusion, et par le fait que les rubans synthétiques sont assemblés à la toile par fusion, les rubans synthétiques ainsi que le fils de renforcement constituant, après fusion, une structure de renforcement monobloc qui est intégrée à la toile.1. Synthetic fabric with directional reinforcing elements comprising reinforcing elements which are arranged so as to support the forces acting on the synthetic canvas, characterized in that the reinforcing elements consist of synthetic ribbons (10) which are extruded in a synthetic material which is compatible with the synthetic material constituting the fabric (1) and which are reinforced by reinforcing threads (11, 12) which are integrated into the synthetic ribbons during extrusion, and by the fact that the synthetic ribbons are joined to the canvas by fusion, the synthetic ribbons as well as the reinforcement son constituting, after fusion, a one-piece reinforcement structure which is integrated into the canvas.
2. Toile synthétique selon la revendication 1, caractérisée par le fait que les éléments de renforcement sont superposables entre eux et sur une partie de leur longueur, les rubans synthétiques pouvant se souder les uns aux autres par fusion.2. Synthetic fabric according to claim 1, characterized in that the reinforcing elements are superimposable between themselves and over part of their length, the synthetic ribbons being able to be welded to each other by fusion.
3. Toile synthétique selon la revendication 1, caractérisée par le fait que les fils de renforcement sont constitués par des fils de fibre de verre.3. Synthetic fabric according to claim 1, characterized in that the reinforcing threads consist of fiberglass threads.
4. Toile synthétique selon la revendication 1, caractérisée par le fait que les fils de renforcement sont constitués par des fils de fibre de carbone.4. Synthetic fabric according to claim 1, characterized in that the reinforcing threads consist of carbon fiber threads.
5. Toile synthétique selon la revendication 1, caractérisée par le fait que les fils de renforcement sont constitués par des fils de fibre synthétique.5. Synthetic fabric according to claim 1, characterized in that the reinforcing son consist of son of synthetic fiber.
6. Toile synthétique selon la revendication 1, caractérisée par le fait que les fils de renforcement sont constitués par des fils de fibre d'aramide. 6. Synthetic fabric according to claim 1, characterized by the fact that the reinforcing threads consist of aramid fiber threads.
PCT/CH1998/000151 1997-04-24 1998-04-20 Synthetic fabric with directional reinforcing elements WO1998048133A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH95697 1997-04-24
CH956/97 1997-04-24

Publications (1)

Publication Number Publication Date
WO1998048133A1 true WO1998048133A1 (en) 1998-10-29

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PCT/CH1998/000151 WO1998048133A1 (en) 1997-04-24 1998-04-20 Synthetic fabric with directional reinforcing elements

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004041636A1 (en) * 2002-11-08 2004-05-21 Studio Merani Di Merani Michele E C. S.A.S. Three-dimensional sail with laminated structure and construction method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979431A (en) * 1956-03-14 1961-04-11 Ralph T Hays Method and apparatus of producing re-enforced thermoplastic bodies
GB1239579A (en) * 1968-09-25 1971-07-21
GB1454314A (en) * 1974-05-14 1976-11-03 Claro Plastics Ltd Tarpaulins
US4366017A (en) * 1980-03-28 1982-12-28 Siri Bruno G Process and apparatus for continuously applying reinforcing tapes from synthetic resin, on the longitudinal sides of plastic sheets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979431A (en) * 1956-03-14 1961-04-11 Ralph T Hays Method and apparatus of producing re-enforced thermoplastic bodies
GB1239579A (en) * 1968-09-25 1971-07-21
GB1454314A (en) * 1974-05-14 1976-11-03 Claro Plastics Ltd Tarpaulins
US4366017A (en) * 1980-03-28 1982-12-28 Siri Bruno G Process and apparatus for continuously applying reinforcing tapes from synthetic resin, on the longitudinal sides of plastic sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004041636A1 (en) * 2002-11-08 2004-05-21 Studio Merani Di Merani Michele E C. S.A.S. Three-dimensional sail with laminated structure and construction method

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