EP3167102B1 - Umbrella construction - Google Patents

Umbrella construction Download PDF

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Publication number
EP3167102B1
EP3167102B1 EP15703889.4A EP15703889A EP3167102B1 EP 3167102 B1 EP3167102 B1 EP 3167102B1 EP 15703889 A EP15703889 A EP 15703889A EP 3167102 B1 EP3167102 B1 EP 3167102B1
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EP
European Patent Office
Prior art keywords
threads
fabric
warp
umbrella
weft
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EP15703889.4A
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German (de)
French (fr)
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EP3167102A1 (en
Inventor
Stefan BERKTOLD
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Sefar AG
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Sefar AG
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Publication date
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Priority to HUE15703889A priority Critical patent/HUE040262T2/en
Priority to PL15703889T priority patent/PL3167102T3/en
Priority to PT15703889T priority patent/PT3167102T/en
Publication of EP3167102A1 publication Critical patent/EP3167102A1/en
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Publication of EP3167102B1 publication Critical patent/EP3167102B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/573—Tensile strength
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/18—Covers; Means for fastening same
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
    • D10B2321/042—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polymers of fluorinated hydrocarbons, e.g. polytetrafluoroethene [PTFE]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial

Definitions

  • the invention relates to a screen construction with a foldable umbrella rod mechanism and a screen arranged thereon with a fabric with warp threads and weft threads of PTFE yarn, according to the preamble of claim 1.
  • a fabric is for example from the EP 2 024 542 A1 known.
  • the warp count is approximately twice the weft count.
  • the warp thread is a single yarn, while the weft threads consist of a plied yarn with two monofilaments. This tissue, which is of the Applicant, is very well suited for foldable umbrella constructions.
  • the invention has for its object to provide a screen construction with a fabric, the high demands on strength, foldability and weather resistance is taken into account.
  • a screen construction comprising a foldable umbrella frame mechanism and a planar screen disposed thereon, wherein according to the invention the screen comprises a fabric as described below.
  • the fabric is woven in two or more layers with a number of wefts which essentially corresponds to the number of warp threads, and that the fabric is of the same design on its upper side and on its lower side. It has been found that such a fabric construction for the architectural sector and in particular for textile structures and covers has a high strength and at the same time is still very easy to fold. The symmetrical construction at the top and the bottom counteracts combing out of the fabric even under heavy load.
  • a preferred embodiment of the invention is that a warp thread system is provided with an upper chain and a lower chain and that the yarn of the upper chain corresponds to the yarn of the lower chain.
  • the yarns are made of PTFE, so polytetrafluoroethylene. Due to the symmetrical design with upper chain and lower chain a very good folding behavior is achieved.
  • the fabric has a thickness of about 1 mm or less.
  • the fabric has a thickness between 0.8 mm and 1 mm.
  • a sufficient water resistance is achieved at this thickness, as is desirable in particular for large umbrella constructions.
  • the fabric construction is free of any coating.
  • the number of warp threads and the number of weft threads is between 50 and 90 threads per cm. As a result, a very firm and yet still easily foldable tissue is achieved.
  • the weft thread count and the warp thread count are about the same size.
  • the weft thread number of the warp thread number deviates at most between 5 to 10 threads per cm.
  • a warp count is between 75 to 85 threads per cm, in particular 81 +/- 2 threads per cm, while a weft thread count of 75 to 85 threads per cm, specifically 77 + / - 2 threads per cm, is provided.
  • a comparably good result according to a second embodiment of the invention is that the warp thread number is between 50 to 60 threads per cm, in particular 54 +/- 2 threads per cm, while a weft thread count of 50 to 60 threads per cm, in particular 58 + / - 2 threads per cm, is provided.
  • the first embodiment is intended for particularly large screen constructions with a side length of 53 m and the second embodiment for a slightly smaller variant with 28 m side length.
  • a further preferred embodiment of the invention consists in that the warp threads and the weft threads consist of a single yarn and / or twine.
  • the warp threads and the weft threads are identical.
  • a particularly high strength is achieved.
  • a further improvement of the fabric properties for architectural applications is achieved according to an embodiment of the invention in that a titer of the warp threads corresponds to a denier of the weft threads, the titer being chosen to be particularly low.
  • the denier of the monofilaments can be, for example, 350 to 370 dtex, in particular about 360 dtex. With such a small yarn size, a particularly soft handle is established.
  • a titer of at least approximately 720 dtex can be set.
  • the weft threads can consist of a mixture of monofilaments and twisted threads.
  • the weft threads consist of a twisted yarn.
  • the denier of the weft threads may suitably correspond to the denier of the warp threads.
  • the denier of the individual filaments in the weft may be 350 dtex to 370 dtex, preferably about 360 dtex.
  • the titer of the monofilaments can have the stated values.
  • a twisted yarn can be understood in particular to mean that it is formed from at least two or more individual threads.
  • the monofilaments usually need a bit more space in the fabric structure.
  • a structure can be achieved which may be somewhat thicker and / or also particularly soft.
  • a further preferred embodiment according to the invention is that when using twisted yarns or multiple yarns they have at least one monofilament which is provided with a color which differs from the color of the other threads of the yarn. As a result, a special color of the entire fabric can be achieved with high color stability.
  • the number per unit length in the single shot can be twice the weft number. If, for example, 75 to 85 shots per cm are provided, ie if the weft thread number of the twisted weft threads is 75 to 85 threads as in the first embodiment, the number of single weft threads can be between 150 and 170 threads per cm. In the second smaller embodiment, the Weft number of the twisted weft threads 50 to 60, while the number of single weft threads is 100 to 120.
  • a twisted yarn may be used in which the monofilaments are twisted to an increased extent.
  • the yarn may in this case have two monofilaments whose titers are for example 350 to 370 dtex, preferably about 360 dtex.
  • a higher surface area and thus better water repellency are achieved compared to a single denier with the same denier, which is particularly advantageous for use in outdoor architecture.
  • the handle of the fabric can be improved by the weft threads and / or the warp threads are rotated together.
  • the fabric has a weight between 900 g / m 2 and 1500 g / m 2 .
  • the fabric has a fabric weight of 1400 g / m 2 in the first embodiment or 990 g / m 2 in the second embodiment.
  • a particularly soft handle and a good water-tightness can be achieved according to the invention in that the fabric weave is a double-layered fabric or a multi-layered fabric.
  • the tear strength of the fabric it is particularly advantageous that the fabric is woven in multiple layers, in particular double-layered.
  • a tear resistance in warp and weft of more than 10,750 Newton / 5 cm in the first embodiment or even 72,500 Newton / 5 cm in the second embodiment can be achieved.
  • a seam Tensile Strength or Comb-out in the first embodiment of 4,150 Newton / 5 cm or 2,650 Newton / 5 cm in the second embodiment can be achieved.
  • white warp threads are used, while at least some of the weft threads are colored.
  • colored weft threads may be provided periodically in the fabric structure while the remaining weft threads are white. For example, every fourth or every ninth can be executed in color.
  • a colored fabric structure can be obtained in a particularly simple and economical manner.
  • the embodiment since the colored threads are present only in a thread system, the embodiment allows particularly easy alignment of the fabric in the following processing steps.
  • a highly harmonious and at the same time uniform fabric image is realized.
  • a high mechanical strength in particular high wind resistance, a high resistance to aging, in particular UV resistance and / or a good shading property can be achieved.
  • the screen construction is designed in particular as a large-screen construction which has a diameter or a side length of at least 20 m, preferably between 25 m and 60 m. Even larger diameters and side lengths are conceivable.
  • the foldable umbrella frame mechanism is basically known. This usually has a central mast, on which a plurality of arms is hinged, which are adjustable between a folded and a folded umbrella position via an actuator.
  • the fabric according to the invention described above can also be used in awning constructions, in large tent umbrellas, in awnings, foldable shadings, in tent constructions and / or surface structures.
  • the stretched fabric preferably has widths of 20 m to 100 m. Such large spans can not be practically realized with conventional fabrics, since the fabrics are so strong for these sizes that foldability with the usual mechanical support mechanisms is no longer feasible.
  • the screen in a deployed state has a side length or a diameter of at least 20 m, preferably between 25 m and 60 m.
  • a screen size of 53m x 53m and in the second embodiment a screen size of 28m x 28m is provided.
  • the PTFE yarns are chemically particularly inert and UV-stable.
  • the method for producing a woven fabric as described above is characterized in that, when the warp threads are being passed through, at least one monofilament and / or twine is guided through a pocket of the warp threads.
  • a loom with at least two or three yarn carriers and at least two or three feeder units for the color combinations of the fabric is suitably used.
  • a particularly stable fabric construction according to a further development can be achieved in that two or more weft threads are shot in the single-shot method per weave repeat, in particular two shots per repeat.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Description

Die Erfindung betrifft eine Schirmkonstruktion mit einem faltbaren Schirmgestängemechanismus und einem daran angeordneten Schirm mit einem Gewebe mit Kettfäden und Schussfäden aus PTFE-Garn, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a screen construction with a foldable umbrella rod mechanism and a screen arranged thereon with a fabric with warp threads and weft threads of PTFE yarn, according to the preamble of claim 1.

Ein Gewebe ist beispielsweise aus der EP 2 024 542 A1 bekannt. Bei diesem Gewebe ist die Kettfadenzahl annähernd doppelt so groß wie die Schussfadenzahl. Als Kettfaden dient ein Einfachgarn, während die Schussfäden aus einem gefachten Garn mit zwei Einzelfäden bestehen. Dieses Gewebe, welches von der Anmelderin stammt, ist sehr gut für faltbare Schirmkonstruktionen geeignet.A fabric is for example from the EP 2 024 542 A1 known. For this fabric, the warp count is approximately twice the weft count. The warp thread is a single yarn, while the weft threads consist of a plied yarn with two monofilaments. This tissue, which is of the Applicant, is very well suited for foldable umbrella constructions.

Aus der GB 2478855 A ist ein hitzebeständiges Gewebe aus Garnen mit PTFE bekannt.From the GB 2478855 A is a heat resistant fabric of yarns known with PTFE.

Bei Großschirmkonstruktionen mit großen Durchmessern oder Seitenlänge von 10 m und mehr wird ein Gewebe benötigt, welches einerseits sehr hohe Spannkräfte aufnehmen kann und andererseits noch so weich und flexibel ist, dass ein Zusammenfalten des Schirmes ohne übermäßige Belastung der Schirmkonstruktion möglich ist.In large umbrella constructions with large diameters or side length of 10 m and more, a fabric is needed, which on the one hand can absorb very high clamping forces and on the other hand so soft and flexible that a folding of the screen without excessive load on the screen construction is possible.

Zudem müssen Gewebe für Schirmkonstruktionen sehr alterungs- und witterungsbeständig sein, da diese üblicherweise im Freien eingesetzt werden und über lange Zeiträume einer erheblichen Sonneneinstrahlung ausgesetzt sind. Gleichzeitig werden hohe Anforderungen an die Wasserdichtigkeit eines solchen Gewebes für Schirmkonstruktionen bei langer Lebensdauer gestellt.In addition, fabrics for umbrella constructions must be very resistant to aging and weathering, since these are usually used outdoors and exposed to significant sunlight for long periods of time. At the same time, high demands are placed on the watertightness of such a fabric for umbrella structures with a long service life.

Der Erfindung liegt die Aufgabe zugrunde, eine Schirmkonstruktion mit einem Gewebe anzugeben, wobei den hohen Anforderungen an Festigkeit, Faltbarkeit und Witterungsbeständigkeit Rechnung getragen wird.The invention has for its object to provide a screen construction with a fabric, the high demands on strength, foldability and weather resistance is taken into account.

Die Erfindung wird mit einer Schirmkonstruktion nach Anspruch 1 gelöst. Bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen angegeben.The invention is achieved with a screen construction according to claim 1. Preferred embodiments are given in the dependent claims.

Gemäß einem Aspekt der Erfindung ist eine Schirmkonstruktion mit einem faltbaren Schirmgestängemechanismus und einem daran angeordneten flächigen Schirm vorgesehen, wobei gemäß der Erfindung der Schirm ein Gewebe aufweist, wie es nachfolgend beschrieben wird.According to one aspect of the invention, there is provided a screen construction comprising a foldable umbrella frame mechanism and a planar screen disposed thereon, wherein according to the invention the screen comprises a fabric as described below.

Es ist vorgesehen, dass das Gewebe doppel- oder mehrlagig mit einer Schussfadenzahl gewebt ist, welche im Wesentlichen der Kettfadenzahl entspricht, und dass das Gewebe an seiner Oberseite und an seiner Unterseite gleich ausgebildet ist. Es wurde festgestellt, dass eine derartige Gewebekonstruktion für den Architekturbereich und insbesondere für textile Bauten und Abdeckungen eine hohe Festigkeit aufweist und gleichzeitig noch sehr gut faltbar ist. Durch den symmetrischen Aufbau an der Oberseite und der Unterseite wird einem Auskämmen des Gewebes auch bei starker Belastung entgegengewirkt.It is envisaged that the fabric is woven in two or more layers with a number of wefts which essentially corresponds to the number of warp threads, and that the fabric is of the same design on its upper side and on its lower side. It has been found that such a fabric construction for the architectural sector and in particular for textile structures and covers has a high strength and at the same time is still very easy to fold. The symmetrical construction at the top and the bottom counteracts combing out of the fabric even under heavy load.

Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass ein Kettfadensystem mit einer Oberkette und einer Unterkette vorgesehen ist und dass das Garn der Oberkette dem Garn der Unterkette entspricht. Die Garne bestehen aus PTFE, also aus Polytetraflurethylen. Durch die symmetrische Ausgestaltung mit Oberkette und Unterkette wird ein sehr gutes Faltverhalten erreicht.A preferred embodiment of the invention is that a warp thread system is provided with an upper chain and a lower chain and that the yarn of the upper chain corresponds to the yarn of the lower chain. The yarns are made of PTFE, so polytetrafluoroethylene. Due to the symmetrical design with upper chain and lower chain a very good folding behavior is achieved.

Eine besonders gute Abstimmung zwischen Festigkeit einerseits und Faltbarkeit andererseits ergibt sich nach einer Weiterbildung der Erfindung dadurch, dass das Gewebe eine Dicke von etwa 1 mm oder geringer aufweist. Vorzugsweise weist das Gewebe eine Dicke zwischen 0,8 mm und 1 mm auf. Bei der angegebenen Gewebekonstruktion wird bei dieser Dicke auch eine hinreichende Wasserfestigkeit erreicht, wie sie insbesondere für Großschirmkonstruktionen gewünscht ist. Vorzugsweise ist die Gewebekonstruktion frei von jeglicher Beschichtung.A particularly good coordination between strength on the one hand and foldability on the other hand results according to a development of the invention in that the fabric has a thickness of about 1 mm or less. Preferably, the fabric has a thickness between 0.8 mm and 1 mm. In the specified fabric construction, a sufficient water resistance is achieved at this thickness, as is desirable in particular for large umbrella constructions. Preferably, the fabric construction is free of any coating.

Weiterhin ist es nach der Erfindung bevorzugt, dass die Kettfadenzahl und die Schussfadenzahl zwischen 50 bis 90 Fäden pro cm beträgt. Hierdurch wird ein sehr festes und gleichwohl noch gut faltbares Gewebe erzielt.Furthermore, it is preferred according to the invention that the number of warp threads and the number of weft threads is between 50 and 90 threads per cm. As a result, a very firm and yet still easily foldable tissue is achieved.

Grundsätzlich wird es dabei nach der Erfindung angestrebt, dass die Schussfadenzahl und die Kettfadenzahl etwa gleich groß sind. Insbesondere ist es nach der Erfindung vorgesehen, dass die Schussfadenzahl von der Kettfadenzahl allenfalls zwischen 5 bis 10 Fäden pro cm abweicht.Basically, it is desirable according to the invention that the weft thread count and the warp thread count are about the same size. In particular, it is provided according to the invention that the weft thread number of the warp thread number deviates at most between 5 to 10 threads per cm.

Bei einer ersten Ausführungsform eines erfindungsgemäßen Gewebes für eine Großschirmkonstruktion hat sich ergeben, dass eine Kettfadenzahl zwischen 75 bis 85 Fäden pro cm, insbesondere 81 +/- 2 Fäden pro cm beträgt, während eine Schussfadenzahl von 75 bis 85 Fäden pro cm, konkret 77 +/- 2 Fäden pro cm, vorgesehen ist. Hierdurch wird eine hervorragende Festigkeit und gute Faltbarkeit erreicht. Ein vergleichbar gutes Ergebnis besteht nach einer zweiten Ausführungsform der Erfindung darin, dass die Kettfadenzahl zwischen 50 bis 60 Fäden pro cm, insbesondere 54 +/- 2 Fäden pro cm beträgt, während eine Schussfadenzahl von 50 bis 60 Fäden pro cm, insbesondere von 58 +/- 2 Fäden pro cm, vorgesehen ist. Die erste Ausführungsform ist für besonders große Schirmkonstruktionen mit einer Seitenlänge von 53 m und die zweite Ausführungsform für eine etwas kleinere Variante mit 28 m Seitenlänge vorgesehen.In a first embodiment of a fabric according to the invention for a large-screen construction, it has been found that a warp count is between 75 to 85 threads per cm, in particular 81 +/- 2 threads per cm, while a weft thread count of 75 to 85 threads per cm, specifically 77 + / - 2 threads per cm, is provided. This achieves excellent strength and good foldability. A comparably good result according to a second embodiment of the invention is that the warp thread number is between 50 to 60 threads per cm, in particular 54 +/- 2 threads per cm, while a weft thread count of 50 to 60 threads per cm, in particular 58 + / - 2 threads per cm, is provided. The first embodiment is intended for particularly large screen constructions with a side length of 53 m and the second embodiment for a slightly smaller variant with 28 m side length.

Versuche zu diesen Gewebekonstruktionen mit diesen konkreten Fadenzahlen haben gezeigt, dass Fadendichten erreicht werden, bei denen ohne Beschichtung eine Wasserdichtigkeit von 20 cm Wassersäule und mehr erzielbar ist. Durch die ausgeglichene hohe Fadenzahl lassen sich vergleichsweise kleine Poren erzielen, woraus sich die hervorragende Dichtigkeit ergibt. Zudem trägt die hohe Kett- und Schussfadenzahl zu einer besonders hohen Reißfestigkeit des Gewebes bei.Experiments on these fabric constructions with these concrete thread numbers have shown that thread densities are achieved in which a waterproofing of 20 cm water column and more can be achieved without coating. Due to the balanced high number of threads can be achieved comparatively small pores, resulting in the excellent tightness. In addition, the high warp and weft thread count contributes to a particularly high tear resistance of the fabric.

Eine weitere bevorzugte Ausführungsform der Erfindung besteht darin, dass die Kettfäden und die Schussfäden aus einem Einfachgarn und/oder Zwirn bestehen. Insbesondere sind die Kettfäden und die Schussfäden gleich ausgebildet. Vorzugsweise bei einem Zwirn, also einem verzwirnten Mehrfachgarn, wird eine besonders hohe Festigkeit erzielt.A further preferred embodiment of the invention consists in that the warp threads and the weft threads consist of a single yarn and / or twine. In particular, the warp threads and the weft threads are identical. Preferably, in a twist, so a twisted Mehrfachgarn, a particularly high strength is achieved.

Eine weitere Verbesserung der Gewebeeigenschaften für Architekturanwendungen wird gemäß einer Weiterbildung der Erfindung dadurch erreicht, dass ein Titer der Kettfäden einem Titer der Schussfäden entspricht, wobei der Titer insbesondere niedrig gewählt ist. Insbesondere kann der Titer der Einzelfäden beispielsweise 350 bis 370 dtex, insbesondere etwa 360 dtex betragen. Bei einer solchen geringen Garnstärke stellt sich ein besonders weicher Griff ein. Bei einem Zwirn kann ein Titer von zumindest annähernd 720 dtex eingestellt werden.A further improvement of the fabric properties for architectural applications is achieved according to an embodiment of the invention in that a titer of the warp threads corresponds to a denier of the weft threads, the titer being chosen to be particularly low. In particular, the denier of the monofilaments can be, for example, 350 to 370 dtex, in particular about 360 dtex. With such a small yarn size, a particularly soft handle is established. For a twist, a titer of at least approximately 720 dtex can be set.

Grundsätzlich können die Schussfäden aus einer Mischung von Einzelfäden und Zwirnfäden bestehen. Alternativ kann vorgesehen sein, dass die Schussfäden aus einem gezwirnten Garn bestehen. In diesem Fall kann der Titer der Schussfäden in geeigneter Weise dem Titer der Kettfäden entsprechen. Beispielsweise kann der Titer der Einzelfäden im Schuss 350 dtex bis 370 dtex, bevorzugt etwa 360 dtex betragen. Insbesondere kann der Titer der Einzelfäden die angegebenen Werte aufweisen. Unter einem gezwirnten Garn kann insbesondere verstanden werden, dass es aus mindestens zwei oder mehreren Einzelfäden gebildet ist.In principle, the weft threads can consist of a mixture of monofilaments and twisted threads. Alternatively it can be provided that the weft threads consist of a twisted yarn. In this case, the denier of the weft threads may suitably correspond to the denier of the warp threads. For example, the denier of the individual filaments in the weft may be 350 dtex to 370 dtex, preferably about 360 dtex. In particular, the titer of the monofilaments can have the stated values. A twisted yarn can be understood in particular to mean that it is formed from at least two or more individual threads.

Verglichen mit einem Zwirn benötigen die Einzelfäden in der Regel etwas mehr Platz in der Gewebestruktur. So lässt sich durch Verwendung eines gezwirnten Garnes bei dem resultierenden Gewebe eine Struktur erreichen, welche etwas dicker und/oder auch besonders weich sein kann.Compared to a thread, the monofilaments usually need a bit more space in the fabric structure. Thus, by using a twisted yarn in the resulting fabric, a structure can be achieved which may be somewhat thicker and / or also particularly soft.

Eine weitere bevorzugte Ausführungsform nach der Erfindung besteht darin, dass bei der Verwendung von gezwirnten Garnen oder Mehrfachgarnen diese mindestens einen Einzelfaden aufweisen, welcher mit einer Farbe versehen ist, die sich von der Farbe der anderen Fäden des Garnes unterscheidet. Hierdurch lässt sich eine spezielle Farbigkeit des Gesamtgewebes bei hoher Farbstabilität erreichen.A further preferred embodiment according to the invention is that when using twisted yarns or multiple yarns they have at least one monofilament which is provided with a color which differs from the color of the other threads of the yarn. As a result, a special color of the entire fabric can be achieved with high color stability.

Sofern als Schussfaden ein gezwirntes Garn mit zwei Einzelfäden verwendet wird, kann die Zahl pro Längeneinheit im Einzelschuss das Doppelte der Schussfadenzahl betragen. Sind beispielsweise 75 bis 85 Schüsse pro cm vorgesehen, wenn also wie bei der ersten Ausführungsform die Schussfadenzahl der gezwirnten Schussfäden 75 bis 85 Fäden beträgt, so kann die Zahl der Einzelschussfäden zwischen 150 bis 170 Fäden pro cm betragen. Bei der zweiten kleineren Ausführungsform beträgt die Schussfadenzahl der gezwirnten Schussfäden 50 bis 60, während die Zahl der Einzelschussfäden 100 bis 120 beträgt.If a twisted yarn with two individual threads is used as the weft thread, the number per unit length in the single shot can be twice the weft number. If, for example, 75 to 85 shots per cm are provided, ie if the weft thread number of the twisted weft threads is 75 to 85 threads as in the first embodiment, the number of single weft threads can be between 150 and 170 threads per cm. In the second smaller embodiment, the Weft number of the twisted weft threads 50 to 60, while the number of single weft threads is 100 to 120.

Insbesondere kann statt eines gefachten Garnes, bei dem die Fäden nicht oder nicht nennenswert miteinander verdreht sind, ein gezwirntes Garn verwendet werden, bei welchem die Einzelfäden in erhöhtem Maße verdreht sind. Das Garn kann in diesem Fall zwei Einzelfäden aufweisen, deren Titer beispielsweise 350 bis 370 dtex, vorzugsweise etwa 360 dtex, betragen. Durch Verwendung vergleichsweise dünner Einzelfäden in einem Zwirn oder einem gefachten Garn werden, verglichen mit einem Einfachgarn mit gleichem Titer, eine höhere Oberfläche und somit eine bessere Wasserabweisung erreicht, was speziell bei der Verwendung in der Außenarchitektur vorteilhaft ist. Nach einer Ausführungsform der Erfindung kann der Griff des Gewebes dadurch verbessert werden, dass die Schussfäden und/oder die Kettfäden miteinander gedreht sind.In particular, instead of a plied yarn in which the threads are not or not significantly twisted together, a twisted yarn may be used in which the monofilaments are twisted to an increased extent. The yarn may in this case have two monofilaments whose titers are for example 350 to 370 dtex, preferably about 360 dtex. By using comparatively thin monofilaments in a twisted yarn or a plied yarn, a higher surface area and thus better water repellency are achieved compared to a single denier with the same denier, which is particularly advantageous for use in outdoor architecture. According to one embodiment of the invention, the handle of the fabric can be improved by the weft threads and / or the warp threads are rotated together.

Besonders gute Eigenschaften für ein Gewebe für die Außenarchitektur werden nach der Erfindung dadurch erreicht, dass das Gewebe ein Gewicht zwischen 900 g/m2 und 1500 g/m2 aufweist. Vorzugsweise weist das Gewebe ein Gewebegewicht von 1400 g/m2 bei der ersten Ausführungsform oder 990 g/m2 bei der zweiten Ausführungsform auf.Particularly good properties for a fabric for outdoor architecture are achieved according to the invention in that the fabric has a weight between 900 g / m 2 and 1500 g / m 2 . Preferably, the fabric has a fabric weight of 1400 g / m 2 in the first embodiment or 990 g / m 2 in the second embodiment.

Ein besonders weicher Griff und eine gute Wasserdichtigkeit kann erfindungsgemäß dadurch erzielt werden, dass die Gewebbindung ein Doppellagengewebe beziehungsweise ein mehrlagiges Gewebe ist. Im Hinblick auf die Reißfestigkeit des Gewebes ist es besonders vorteilhaft, dass das Gewebe mehrlagig, insbesondere doppellagig gewebt ist. Bei einer doppellagigen Gewebestruktur können im Zusammenhang mit der erfindungsgemäß vergleichsweise hohen Kett- und Schussfadenzahl ein Reißfestigkeit in Kette und Schuss von mehr als 10.750 Newton/5 cm bei der ersten Ausführungsform oder sogar 72.500 Newton/5 cm bei der zweiten Ausführungsform erzielt werden.A particularly soft handle and a good water-tightness can be achieved according to the invention in that the fabric weave is a double-layered fabric or a multi-layered fabric. With regard to the tear strength of the fabric, it is particularly advantageous that the fabric is woven in multiple layers, in particular double-layered. In the case of a double-layered fabric structure, in connection with the inventively comparatively high warp and weft number, a tear resistance in warp and weft of more than 10,750 Newton / 5 cm in the first embodiment or even 72,500 Newton / 5 cm in the second embodiment can be achieved.

Um einem Verrutschen von Gewebenähten, auch Auskämmen genannt, entgegenzuwirken, das heißt, um eine besonders hohe Nahtfestigkeit zu erhalten, kann es vorteilhaft sein, dass die Kettfäden stark mit den Schussfäden verschlungen zu Liegen kommen. Insbesondere können eine Seam Tensile Strength beziehungsweise Comb-out bei der ersten Ausführungsform von 4.150 Newton/5 cm oder von 2.650 Newton/5 cm bei der zweiten Ausführungsform erreicht werden.In order to counteract a slippage of woven seams, also called combing out, that is, in order to obtain a particularly high seam strength, it can be advantageous for the warp threads to come to lie heavily entwined with the weft threads. In particular, a seam Tensile Strength or Comb-out in the first embodiment of 4,150 Newton / 5 cm or 2,650 Newton / 5 cm in the second embodiment can be achieved.

Nach einer weiteren Ausführungsvariante der Erfindung ist es vorteilhaft, dass weiße Kettfäden verwendet werden, während zumindest ein Teil der Schussfäden farbig ist. Insbesondere können in der Gewebestruktur periodisch farbige Schussfäden vorgesehen sein, während die verbliebenen Schussfäden weiß sind. Beispielsweise kann jeder vierte oder jeder neunte in Farbe ausgeführt sein. Hierdurch kann in besonders einfacher und wirtschaftlicher Weise eine farbige Gewebestruktur erhalten werden. Da gemäß diesem Ausführungsbeispiel die farbigen Fäden überdies nur in einem Fadensystem vorhanden sind, erlaubt das Ausführungsbeispiel eine besonders einfache Ausrichtung des Gewebes in den folgenden Verarbeitungsschritten. Darüber hinaus wird ein ausgeprägt harmonisches und zugleich gleichmäßiges Gewebebild realisiert. Mit dem erfindungsgemäßen Gewebe können ein hohe mechanische Festigkeit, insbesondere hohe Windfestigkeit, eine hohe Alterungsbeständigkeit, insbesondere UV-Beständigkeit und/oder eine gute Beschattungseigenschaft erreicht werden.According to a further embodiment variant of the invention, it is advantageous that white warp threads are used, while at least some of the weft threads are colored. In particular, colored weft threads may be provided periodically in the fabric structure while the remaining weft threads are white. For example, every fourth or every ninth can be executed in color. As a result, a colored fabric structure can be obtained in a particularly simple and economical manner. Moreover, according to this embodiment, since the colored threads are present only in a thread system, the embodiment allows particularly easy alignment of the fabric in the following processing steps. In addition, a highly harmonious and at the same time uniform fabric image is realized. With the fabric according to the invention a high mechanical strength, in particular high wind resistance, a high resistance to aging, in particular UV resistance and / or a good shading property can be achieved.

Die Schirmkonstruktion ist insbesondere als eine Großschirmkonstruktion ausgeführt, welche einen Durchmesser oder eine Seitenlänge von mindestens 20 m, vorzugsweise zwischen 25 m und 60 m aufweist. Auch größere Durchmesser und Seitenlängen sind denkbar. Der faltbare Schirmgestängemechanismus ist grundsätzlich bekannt. Dieser weist üblicherweise einen mittigen Mast auf, an welchem eine Vielzahl von Armen angelenkt ist, welche zwischen einer eingeklappten und einer aufgefalteten Schirmposition über einen Stellantrieb verstellbar sind. Neben diesen Schirmkonstruktionen kann das zuvor beschriebene erfindungsgemäße Gewebe auch bei Sonnensegelkonstruktionen, bei großen Zeltschirmen, bei Markisen, faltbaren Beschattungen, bei Zeltkonstruktionen und/oder Flächentragwerken zum Einsatz kommen. Auch bei diesen Konstruktionen weist das aufgespannte Gewebe vorzugsweise Weiten von 20 m bis 100 m auf. Derartige große Spannweiten können mit herkömmlichen Geweben praktisch nicht verwirklicht werden, da für diese Größen die Gewebe derart fest sind, dass eine Faltbarkeit mit den üblichen mechanischen Tragmechanismen nicht mehr durchführbar ist.The screen construction is designed in particular as a large-screen construction which has a diameter or a side length of at least 20 m, preferably between 25 m and 60 m. Even larger diameters and side lengths are conceivable. The foldable umbrella frame mechanism is basically known. This usually has a central mast, on which a plurality of arms is hinged, which are adjustable between a folded and a folded umbrella position via an actuator. In addition to these umbrella structures, the fabric according to the invention described above can also be used in awning constructions, in large tent umbrellas, in awnings, foldable shadings, in tent constructions and / or surface structures. Also in these constructions, the stretched fabric preferably has widths of 20 m to 100 m. Such large spans can not be practically realized with conventional fabrics, since the fabrics are so strong for these sizes that foldability with the usual mechanical support mechanisms is no longer feasible.

Insbesondere ist es nach einer Ausführungsvariante der Erfindung bevorzugt, dass der Schirm in einem aufgefalteten Zustand eine Seitenlänge oder einen Durchmesser von mindestens 20 m, vorzugsweise zwischen 25 m und 60 m aufweist. Für die größere erste Ausführungsform ist eine Schirmgröße von 53 m x 53 m und bei der zweiten Ausführungsform eine Schirmgröße von 28 m x 28 m vorgesehen.In particular, according to an embodiment variant of the invention, it is preferred that the screen in a deployed state has a side length or a diameter of at least 20 m, preferably between 25 m and 60 m. For the larger first embodiment, a screen size of 53m x 53m and in the second embodiment a screen size of 28m x 28m is provided.

Mit derartigen Konstruktionen lassen sich große Plätze, insbesondere in heißen Gegenden, großflächig beschatten.With such constructions, large spaces, especially in hot areas, can be shaded over a large area.

Ganz besonders beim Einsatz in Wüstengegenden ist es nach der Erfindung vorteilhaft, dass die PTFE-Garne chemisch besonders inert und UV-stabil sind. Das Verfahren zum Herstellen eines Gewebes wie es zuvor beschrieben wurde, ist dadurch gekennzeichnet, dass beim Durchschießen der Kettfäden zumindest ein Einzelfaden und/oder ein Zwirn durch ein Fach der Kettfäden geführt wird. Hierdurch lassen sich vornehmlich die oben erwähnten Gewebekonstruktionen herstellen. Zur Durchführung des Verfahrens wird geeigneterweise eine Webmaschine mit zumindest zwei oder drei Garnträgern und zumindest zwei oder drei Vorspulgeräten für die Farbkombinationen des Gewebes eingesetzt.Especially when used in desert areas, it is advantageous according to the invention that the PTFE yarns are chemically particularly inert and UV-stable. The method for producing a woven fabric as described above is characterized in that, when the warp threads are being passed through, at least one monofilament and / or twine is guided through a pocket of the warp threads. As a result, it is possible primarily to produce the above-mentioned fabric constructions. To carry out the method, a loom with at least two or three yarn carriers and at least two or three feeder units for the color combinations of the fabric is suitably used.

Insbesondere kann eine besonders stabile Gewebekonstruktion nach einer Weiterbildung dadurch erreicht werden, dass pro Bindungsrapport zwei oder mehrere Schussfäden im Einzelschussverfahren eingeschossen werden, insbesondere zwei Schüsse pro Rapport.In particular, a particularly stable fabric construction according to a further development can be achieved in that two or more weft threads are shot in the single-shot method per weave repeat, in particular two shots per repeat.

Claims (10)

  1. Umbrella construction having a foldable umbrella linkage mechanism and a planar umbrella arranged thereon,
    characterized in that
    the umbrella has a fabric having warp threads and weft threads of PTFE-yarn,
    in that the fabric is woven in a double-layered or multi-layered manner with a number of weft threads which substantially corresponds to the number of warp threads,
    in that the fabric is of identical design on its upper side and on its lower side, and
    in that the fabric has a weight ranging between 900 g/m2 and 1500 g/m2.
  2. Umbrella construction according to claim 1,
    characterized in that
    a warp thread system with an upper warp and a lower warp is provided and
    in that the yarn of the upper warp corresponds to the yarn of the lower warp.
  3. Umbrella construction according to claim 1 or 2,
    characterized in that
    the fabric has a thickness of approximately 1 mm or less.
  4. Umbrella construction according to any one of claims 1 to 3,
    characterized in that
    the number of warp threads and the number of weft threads ranges between 50 and 90 threads/cm.
  5. Umbrella construction according to any one of claims 1 to 4,
    characterized in that
    the number of weft threads varies from the number of warp threads between 5 to 10 threads/cm.
  6. Umbrella construction according to any one of claims 1 to 5,
    characterized in that
    the warp threads and the weft threads consist of a single yarn and/or a twine.
  7. Umbrella construction according to any one of claims 1 to 6,
    characterized in that
    a titer of the warp threads corresponds to a titer of the weft threads, wherein the titer is chosen to be low in particular.
  8. Umbrella construction according to any one of claims 1 to 7,
    characterized in that
    in an unfolded state the umbrella has a side length or a diameter of at least 20 m, preferably ranging between 25 m and 60 m.
  9. Umbrella construction according to any one of claims 1 to 8,
    characterized in that
    during the interweaving of the warp threads at least one single thread and/or a twine is led through a shed of the warp threads.
  10. Umbrella construction according to any one of claims 1 to 9,
    characterized in that
    per pattern repeat two or more weft threads are inserted in a single-weft method, in particular two wefts per repeat.
EP15703889.4A 2015-01-14 2015-01-14 Umbrella construction Active EP3167102B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
HUE15703889A HUE040262T2 (en) 2015-01-14 2015-01-14 Umbrella construction
PL15703889T PL3167102T3 (en) 2015-01-14 2015-01-14 Umbrella construction
PT15703889T PT3167102T (en) 2015-01-14 2015-01-14 Umbrella construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/050582 WO2016112973A1 (en) 2015-01-14 2015-01-14 Woven fabric for textile constructions and/or covers and method for producing the woven fabric

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EP3167102A1 EP3167102A1 (en) 2017-05-17
EP3167102B1 true EP3167102B1 (en) 2018-08-29

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EP (1) EP3167102B1 (en)
JP (1) JP6594408B2 (en)
ES (1) ES2699399T3 (en)
HU (1) HUE040262T2 (en)
PL (1) PL3167102T3 (en)
PT (1) PT3167102T (en)
TR (1) TR201815630T4 (en)
WO (1) WO2016112973A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60137061U (en) * 1984-02-23 1985-09-11 株式会社　アイ．エス．テイ Architectural tent membrane material
JPH01139840A (en) * 1987-11-27 1989-06-01 Showa Kogyo Kk Humidity pervious and waterproof cloth
JP2616375B2 (en) * 1993-04-27 1997-06-04 鹿島建設株式会社 Removable curing membrane roof structure
US5925580A (en) * 1996-04-29 1999-07-20 Toyo Polymer Co., Ltd. Repellent cloth using fluoroplastic fibers
JP3415019B2 (en) * 1998-01-19 2003-06-09 萩原工業株式会社 Polypropylene mesh sheet for construction work
JP3960683B2 (en) * 1998-04-28 2007-08-15 旭化成せんい株式会社 Umbrella
US6667097B2 (en) * 1999-01-29 2003-12-23 Edward William Tokarsky High speed melt spinning of fluoropolymer fibers
JP2004316188A (en) * 2003-04-15 2004-11-11 Designing Staff Noru:Kk Building
DE202006008868U1 (en) * 2006-06-06 2006-08-03 Sefar Ag Woven fabric made from polytetrafluoroethylene yarn and having at least twice as many warp threads as weft threads, used for textile structures and coverings, e.g. screens, awnings and tents
JP2008075322A (en) * 2006-09-21 2008-04-03 Kamimura Tekko Kk Movable sunshade device like monument
GB201004693D0 (en) * 2010-03-19 2010-05-05 Toray Textiles Europ Ltd Heat resistant fabric
CN105088489B (en) * 2012-11-29 2017-11-17 东丽纤维研究所（中国）有限公司 A kind of two-layer fabric containing polytetrafluoroethylene fibre and application thereof

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JP2018502225A (en) 2018-01-25
EP3167102A1 (en) 2017-05-17
PT3167102T (en) 2018-11-30
PL3167102T3 (en) 2019-01-31
WO2016112973A1 (en) 2016-07-21
TR201815630T4 (en) 2018-11-21
ES2699399T3 (en) 2019-02-11
JP6594408B2 (en) 2019-10-23
HUE040262T2 (en) 2019-02-28

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