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EP1525343A1 - Method for the production of a woven belt band - Google Patents

Method for the production of a woven belt band

Info

Publication number
EP1525343A1
EP1525343A1 EP03766322A EP03766322A EP1525343A1 EP 1525343 A1 EP1525343 A1 EP 1525343A1 EP 03766322 A EP03766322 A EP 03766322A EP 03766322 A EP03766322 A EP 03766322A EP 1525343 A1 EP1525343 A1 EP 1525343A1
Authority
EP
European Patent Office
Prior art keywords
weft
webbing
weft thread
skin
core
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Withdrawn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
EP03766322A
Other languages
German (de)
French (fr)
Inventor
Johann Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Berger & Co Holding KG GmbH
Original Assignee
Berger & Co Holding KG GmbH
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 Berger & Co Holding KG GmbH filed Critical Berger & Co Holding KG GmbH
Publication of EP1525343A1 publication Critical patent/EP1525343A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0005—Woven fabrics for safety belts
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting

Definitions

  • the present invention relates to a method for producing a woven webbing, in particular for seat belts for vehicles, in particular motor vehicles, with warp threads and at least one weft thread.
  • the warp threads of these tapes consist of multifilament yarns.
  • Multi-filament yarns alone, monofilament yarns alone or mixtures of monofilament and multifilament yarns are used as the weft thread or several weft threads.
  • a webbing with weft material exclusively made of multifilament yarn has the disadvantage that it has almost no transverse stiffness and elasticity.
  • Belt straps with weft threads made from monofilament material have the desired transverse stiffness and elasticity.
  • webbing with monofilament weft material is comparatively too thick compared to webbing made of pure multifilament material.
  • the invention has for its object to propose a method for producing a woven webbing, in which the disadvantages known from the prior art are avoided or at least greatly reduced.
  • the object is achieved with a method according to claim 1.
  • This method has the advantage that the processing of the multifilament yarn in the weft can be achieved in a positive manner Enable structures of the binding points in the tissue.
  • Each individual fibril of the multifilament yarn consists of a core covered with a meltable skin.
  • This yarn hereinafter referred to as "two-component yarn” is woven in the weft and forms flexible, elliptical and flat-lying tie points when the warp threads close. This cannot be achieved with monofilament games.
  • the multifilament yarn is heated according to the invention, the fibrils of the multifilament yarn sticking to one another by melting the meltable skin and the multifilament yarn in undulated form fuses into a monofilament-like, spring-elastic, uniform yarn body and thus contributes to the transverse rigidity of the tape.
  • the described process for changing the mechanical properties - to achieve the desired transverse stiffness and elasticity - follows in undulated form of the threads, i.e. the thickness of the woven tape is less and the tape surface formed by the warp threads is smoother because the heads of the binding points are less steep.
  • the multifilament or its external fibrils are additionally glued at the binding points with the warp threads crossing them during the heat setting, whereby an even higher transverse stability of the webbing can be achieved.
  • polyamide is used for the skin and polyester for the core. This results in an optimally harmonizing material pairing in the webbing.
  • polyester is used for the multifilament of the weft thread both for the skin and for the core.
  • the polyester skin advantageously consists of a modified polyester.
  • the individual fibrils stick together in such a way that a monofilament yarn body with the mechanical properties (spring elasticity, low fluffiness, stiffness) of a monofilament yarn in the weft thread is achieved. This combines all the positive features of multifilament yarn and monofilament yarn in the process according to the invention and the resulting product.
  • the method according to the invention is applicable to all known types of webbing.
  • the advantages that can now be achieved for the first time are obvious: low thickness of the webbing, smoother surface of the webbing surfaces, soft weft reversals in the edge area, spring elasticity, transverse rigidity and integrity.
  • Multifilament yarns are advantageously used as weft threads, the mass ratio of skin to core of which is in the range from approximately 20% to 80% to approximately 30% to 70%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

Disclosed is a method for the production of a woven belt band, especially for safety belts in vehicles, especially motor vehicles, consisting of warp threads and at least one weft thread, characterized in that a multifilament thread, made up of individual filaments, is used as a weft thread during weaving, said filaments consisting of a core surrounded by a meltable skin; also characterized in that the belt band is thermoset after weaving. The multifilament thread melts in an undulated form to form a monofilament spring-elastic single thread body, thereby increasing the cross-resistance of the belt, and is especially glued to the warp threads.

Description

Verfahren zur Herstellung eines gewebten Gurtbandes Method of making a woven webbing

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines gewebten Gurtbandes, insbesondere für Sicherheitsgurte für Fahrzeuge, insbesondere Kraftfahrzeuge, mit Kettfäden und wenigstens einem Schußfaden.The present invention relates to a method for producing a woven webbing, in particular for seat belts for vehicles, in particular motor vehicles, with warp threads and at least one weft thread.

Verfahren zur Herstellung derartiger Gurtbänder und die Nachteile derartig hergestellter Gurtbänder sind in vielen Variationen bekannt. In der Regel bestehen die Kettfäden dieser Bänder aus Multifilgarnen. Als Schußfaden oder mehrere Schußfäden werden Multifϊlgarne allein, Monofilgarne allein oder Mischungen aus Monofil- und Multifilgarnen eingesetzt. Ein Gurtband mit Schußfadenmaterial ausschließlich aus Multifilgarn hat den Nachteil, daß es nahezu keine Quersteifigkeit und Elastizität hat. Gurtbänder mit Schußfäden aus Monofilmate- rial haben zwar einerseits die gewünschte Quersteifigkeit und Elastizität. Daneben haben sie jedoch den Nachteil, daß der monofüe Schußfaden an seinen sogenannten Schußumkehrstellen im Kantenbereich des Gurtbands nach einer bestimmten Anzahl von Scheuervorgängen als sägezahnscharfe Kante hervortritt und Beschädigungen an der Kleidung von Passagieren oder auch Verletzungen am Oberkörper und Halsbereich von Passagieren hervorrufen kann. Daneben sind Gurtbänder mit Monofilschußmaterial vergleichsweise zu dick gegenüber Gurtbändern aus reinem Multifilmaterial.Processes for the production of such webbings and the disadvantages of webbings produced in this way are known in many variations. As a rule, the warp threads of these tapes consist of multifilament yarns. Multi-filament yarns alone, monofilament yarns alone or mixtures of monofilament and multifilament yarns are used as the weft thread or several weft threads. A webbing with weft material exclusively made of multifilament yarn has the disadvantage that it has almost no transverse stiffness and elasticity. Belt straps with weft threads made from monofilament material have the desired transverse stiffness and elasticity. In addition, however, they have the disadvantage that the monofoot weft at its so-called weft reversal points in the edge area of the webbing emerges after a certain number of abrasion processes as a sawtooth-sharp edge and can cause damage to the clothing of passengers or injuries to the upper body and neck area of passengers. In addition, webbing with monofilament weft material is comparatively too thick compared to webbing made of pure multifilament material.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines gewebten Gurtbandes vorzuschlagen, bei dem die aus dem Stand der Technik bekannten Nachteile vermieden oder zumindest stark reduziert sind.The invention has for its object to propose a method for producing a woven webbing, in which the disadvantages known from the prior art are avoided or at least greatly reduced.

Die Aufgabe wird gelöst mit einem Verfahren gemäß Anspruch 1. Dieses Verfahren hat den Vorteil, daß die Verarbeitung des Multifilgarns im Schuß die hierbei positiv erreichbaren Strukturen der Bindungspunkte im Gewebe ermöglichen. Jede einzelne Fibrille des Multifil- garnes besteht aus einem mit einer schmelzfähigen Haut ummantelten Kern. Dieses Garn, im Folgenden kurz "Zweikomponentengarn" genannt, wird im Schuß verwebt und bildet bei Fachschluß der Kettfäden flexible elliptische sowie flach liegende Bindungspunkte. Dies ist mit Monofilgamen nicht erreichbar. Beim dem Weben folgenden Fixierprozeß wird das Multifilgarn gemäß der Erfindung erwärmt, wobei durch Schmelzen der schmelzfähigen Haut die Fibrillen des Multifilgarns sich untereinander verkleben und das Multifilgarn in ondulierter Form zu einem monofilartigen federelastisch wirkenden einheitlichen Garnkörper verschmilzt und damit zur Quersteifigkeit des Bandes beiträgt.The object is achieved with a method according to claim 1. This method has the advantage that the processing of the multifilament yarn in the weft can be achieved in a positive manner Enable structures of the binding points in the tissue. Each individual fibril of the multifilament yarn consists of a core covered with a meltable skin. This yarn, hereinafter referred to as "two-component yarn", is woven in the weft and forms flexible, elliptical and flat-lying tie points when the warp threads close. This cannot be achieved with monofilament games. In the fixing process following the weaving, the multifilament yarn is heated according to the invention, the fibrils of the multifilament yarn sticking to one another by melting the meltable skin and the multifilament yarn in undulated form fuses into a monofilament-like, spring-elastic, uniform yarn body and thus contributes to the transverse rigidity of the tape.

Der geschilderte Prozeß zur Veränderung der mechanischen Eigenschaften - zum Erreichen der gewünschten Quersteifigkeit und Elastizität - folgt in ondulierter Form der Fäden, d.h. die Dicke des gewebten Bandes ist geringer und die von den Kettfäden gebildete Bandoberfläche ist glatter, weil die Köpfe der Bindungspunkte weniger steil ausgeprägt sind.The described process for changing the mechanical properties - to achieve the desired transverse stiffness and elasticity - follows in undulated form of the threads, i.e. the thickness of the woven tape is less and the tape surface formed by the warp threads is smoother because the heads of the binding points are less steep.

Wir bereits oben angedeutet entsteht bei der Herstellung eines Gurtbandes nach der Erfindung aufgrund der multifilen Garnkonstruktion aus Kett- und Schußfaden eine elliptisch abgeflachte, weiche Schußumkehrstelle im Kantenbereich. Eine durch Scheuern der Webkante entstehende Verletzung der Bandkanten führt nicht zu dem aus dem Stand der Technik bekannten gefürchteten Sägezahneffekt und dessen möglichen negativen Folgen.As already indicated above, an elliptically flattened, soft weft reversal point is created in the edge area in the manufacture of a webbing according to the invention due to the multifilament yarn construction made of warp and weft threads. An injury to the band edges caused by abrasion of the selvedge does not lead to the feared sawtooth effect known from the prior art and its possible negative consequences.

In einer vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens wird das Multifil bzw. werden dessen außenliegende Fibrillen bei der Thermofixierung zusätzlich in den Bindungspunkten mit den sie kreuzenden Kettfäden verklebt, wodurch sich eine noch höhere Querstabilität des Gurtbandes erreichen läßt.In an advantageous development of the method according to the invention, the multifilament or its external fibrils are additionally glued at the binding points with the warp threads crossing them during the heat setting, whereby an even higher transverse stability of the webbing can be achieved.

In einer weiteren vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens wird für die Haut Polyamid und für den Kern Polyester verwendet. Damit ergibt sich eine optimal harmonierende Materialpaarung im Gurtband.In a further advantageous development of the method according to the invention, polyamide is used for the skin and polyester for the core. This results in an optimally harmonizing material pairing in the webbing.

In einer weiteren vorteilhaften Ausbildung der Erfindung wird für den Multifilfaden des Schußfadens sowohl für die Haut wie für den Kern Polyester verwendet. Dies hat außerdem einen großen Vorteil darin, daß sich hierdurch eine bessere Recyclingfähigkeit ergibt. Vorteilhafterweise besteht die Polyesterhaut in diesem Fall aus einem modifizierten Polyester. Bei der nach thermischer Behandlung bei etwa 220°C gemäß dem erfindungsgemäßen Verfahren der mit dem Zweikomponentengarn erzeugten textilen Fläche verkleben die einzelnen Fibrillen so miteinander, daß im Schußfaden ein monofilartiger Garnkörper mit den mechanischen Eigenschaften (Federelastizität, geringe Flauschigkeit, Steifigkeit) eines Mono- filgarns erreicht wird. Damit sind sämtliche positiven Merkmale von Multifilgarn und Mono- filgarn im erfindungsgemäßen Verfahren und dem dabei entstehenden Produkt kombiniert.In a further advantageous embodiment of the invention, polyester is used for the multifilament of the weft thread both for the skin and for the core. This also has a great advantage in that it results in better recyclability. In this case, the polyester skin advantageously consists of a modified polyester. In the case of the textile surface produced with the two-component yarn after thermal treatment at approximately 220.degree. C. according to the invention, the individual fibrils stick together in such a way that a monofilament yarn body with the mechanical properties (spring elasticity, low fluffiness, stiffness) of a monofilament yarn in the weft thread is achieved. This combines all the positive features of multifilament yarn and monofilament yarn in the process according to the invention and the resulting product.

Selbstverständlich ist das erfindungsgemäße Verfahren auf alle bekannten Gurtbandtypen anwendbar. Die dabei nun zum ersten Mal erreichbaren Vorteile liegen auf der Hand: Geringe Dicke des Gurtbandes, glattere Oberfläche der Gurtbandflächen, weiche Schußumkehrstellen im Kantenbereich, Federelastizität, Quersteifigkeit und tadellose Oberflächengüte.Of course, the method according to the invention is applicable to all known types of webbing. The advantages that can now be achieved for the first time are obvious: low thickness of the webbing, smoother surface of the webbing surfaces, soft weft reversals in the edge area, spring elasticity, transverse rigidity and impeccable surface quality.

Vorteilhafterweise werden Multifilgarne als Schußfaden eingesetzt, deren Massenverhältnis von Haut zu Kern im Bereich von etwa 20% zu 80% bis etwa 30% zu 70% liegt. Multifilament yarns are advantageously used as weft threads, the mass ratio of skin to core of which is in the range from approximately 20% to 80% to approximately 30% to 70%.

Claims

PATENTANSPRÜCHE 1. Verfahren zur Herstellung eines gewebten Gurtbandes, insbesondere für Sicherheitsgurte für Fahrzeuge, insbesondere Kraftfahrzeuge, mit Kettfäden und wenigstens einem Schußfaden, dadurch gekennzeichnet, daß beim Weben als wenigstens einer Schußfaden ein Multifilgarn verwendet wird, das aus einzelnen Fibrillen zusammengesetzt ist, welche aus einem mit einer schmelzfähigen Haut ummantelten Kern bestehen, wobei der Schußfaden im Kantenbereich Schußumkehrstellen mit flexiblen elliptischen flachliegenden Bindungspunkten bildet, und daß das Gurtband nach dem Weben thermofixiert wird, wobei das Multifilgarn in ondulierter Form zu einem monofilartigen federelastisch wirkenden einheitlichen Garnkörper verschmilzt und damit zur Quersteifigkeit des Bandes beiträgt.1. A method for producing a woven webbing, in particular for seat belts for vehicles, in particular motor vehicles, with warp threads and at least one weft thread, characterized in that a multifilament yarn is used when weaving as at least one weft thread, which is composed of individual fibrils, which consist of a consist of a core with a meltable skin, the weft thread in the edge area forming weft reversal points with flexible, elliptical, flat-lying binding points, and the webbing being heat-set after weaving, the multifilament yarn in an undulated form melting into a monofilament-like, elastic, elastic yarn body and thus to the transverse stiffness of the Band contributes. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Gurtband nach dem Weben thermofixiert wird, wobei das Multifilgarn mit den Kettfäden verklebt.2. The method according to claim 1, characterized in that the webbing is heat set after weaving, the multifilament yarn glued to the warp threads. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß für die Haut Polyamid und für den Kern Polyester verwendet wird.3. The method according to claim 1 or 2, characterized in that polyamide is used for the skin and polyester for the core. 4. Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß für die Haut und für den Kern Polyester verwendet wird.4. The method according to claim 1, 2 or 3, characterized in that polyester is used for the skin and for the core. 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Massenverhältnis von Haut zu Kern im Bereich von etwa 20% zu 80% bis etwa 30% zu 70% liegt.5. The method according to any one of claims 1 to 4, characterized in that the mass ratio of skin to core is in the range from about 20% to 80% to about 30% to 70%. 6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der wenigstens eine Schußfaden nur über einen Teil der Kettfäden und ein zweiter Schußfaden mit dem wenigstens einen Schußfaden gefacht zu diesem, jedoch über die ganze Breite des Gurtbandes verlaufend verwebt wird. 6. The method according to any one of the preceding claims, characterized in that the at least one weft thread is woven over only part of the warp threads and a second weft thread with the at least one weft thread, but extending over the entire width of the webbing. 7. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gurtband mit Rundkanten gewebt wird.7. The method according to any one of claims 1 to 5, characterized in that the webbing is woven with round edges. 8. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gurtband im Randbereich mit Zusatzfäden versehen wird.8. The method according to any one of claims 1 to 5, characterized in that the belt is provided with additional threads in the edge region. 9. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der (die) Schußfaden (Schußfäden) an einer und/oder beiden Kanten mit Fang- und/oder Sperrfäden vermascht wird (werden).9. The method according to any one of the preceding claims, characterized in that the (the) weft (weft) is (are) meshed on one and / or both edges with catch and / or blocking threads. * * * *
EP03766322A 2002-08-01 2003-07-28 Method for the production of a woven belt band Withdrawn EP1525343A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10235227 2002-08-01
DE10235227A DE10235227A1 (en) 2002-08-01 2002-08-01 Method of making a woven webbing
PCT/EP2003/008311 WO2004013393A1 (en) 2002-08-01 2003-07-28 Method for the production of a woven belt band

Publications (1)

Publication Number Publication Date
EP1525343A1 true EP1525343A1 (en) 2005-04-27

Family

ID=30469332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766322A Withdrawn EP1525343A1 (en) 2002-08-01 2003-07-28 Method for the production of a woven belt band

Country Status (8)

Country Link
US (1) US20060016546A1 (en)
EP (1) EP1525343A1 (en)
JP (1) JP2005534821A (en)
AU (1) AU2003251649A1 (en)
CA (1) CA2494056A1 (en)
DE (1) DE10235227A1 (en)
PL (1) PL373076A1 (en)
WO (1) WO2004013393A1 (en)

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BRPI0410704A (en) * 2003-05-27 2006-06-13 Robert Per Hogerkvist use of c-abltyrosine kinase inhibitor, pdgf-tyrosine kinase, or c-kit tyrosine kinase in the treatment of diabetes
DE10326757A1 (en) * 2003-06-13 2005-01-13 Bst Berger Safety Textiles Gmbh & Co. Kg Method for producing an airbag
DE10344334A1 (en) * 2003-09-24 2005-04-28 Johann Berger Woven webbing
WO2006087830A1 (en) * 2005-02-18 2006-08-24 Kanebo, Ltd. Band-form woven-fabric structure and process for producing the same
WO2006088163A1 (en) * 2005-02-18 2006-08-24 Kb Seiren, Ltd. Woven structure of belt form and method for production thereof
JP2007146325A (en) * 2005-11-28 2007-06-14 Takata Corp Woven belt and seat belt unit
JP4761363B2 (en) * 2005-11-28 2011-08-31 タカタ株式会社 Seat belt device
JP4666495B2 (en) * 2005-11-28 2011-04-06 タカタ株式会社 Webbing for passenger restraint belt, seat belt, seat belt device
JP4664193B2 (en) * 2005-11-28 2011-04-06 タカタ株式会社 Webbing for passenger restraint belt, seat belt, seat belt device
DE102006021082A1 (en) * 2006-05-05 2007-11-15 Bst Safety Textiles Gmbh Suture construction for a tissue
JP2008144311A (en) * 2006-12-11 2008-06-26 Takata Corp Webbing for occupant restraint belt, seat belt, and seat belt device
JP2008144308A (en) * 2006-12-11 2008-06-26 Takata Corp Woven belt and seat belt device
JP2008302905A (en) 2007-06-11 2008-12-18 Takata Corp Elastic webbing, air belt, and air belt device
JP2008302907A (en) 2007-06-11 2008-12-18 Takata Corp Elastic webbing, air belt, air belt device

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DE3839549A1 (en) * 1988-11-24 1990-05-31 Schlatterer Gmbh & Co Kg Max CONVEYOR BAND FOR CONVEYING A STRING OF TOBACCO
SE9102448D0 (en) * 1990-08-28 1991-08-26 Meadox Medicals Inc RAVEL RESISTANT, SELF-SUPPORTING WOVEN GRAFT
DE19511852A1 (en) * 1995-03-31 1996-10-02 Hoechst Trevira Gmbh & Co Kg Heavy-duty core / sheath monofilaments for technical applications
DE19857034C1 (en) * 1998-10-02 2000-08-31 Johann Berger Producing seat belt with inflatable section, comprises weaving webbing with alternate single and double layers, and placing inserts into double layers
JP2000234233A (en) * 1999-02-09 2000-08-29 Toray Ind Inc Webbing for sheet belt
DE20120160U1 (en) * 2001-12-12 2003-04-24 Acordis Industrial Fibers GmbH, 42103 Wuppertal Woven seat belt webbing

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See references of WO2004013393A1 *

Also Published As

Publication number Publication date
JP2005534821A (en) 2005-11-17
PL373076A1 (en) 2005-08-08
WO2004013393A1 (en) 2004-02-12
US20060016546A1 (en) 2006-01-26
AU2003251649A1 (en) 2004-02-23
CA2494056A1 (en) 2004-02-12
DE10235227A1 (en) 2004-02-19

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