EP1458911B1 - Woven safety belt - Google Patents
Woven safety belt Download PDFInfo
- Publication number
- EP1458911B1 EP1458911B1 EP02787751A EP02787751A EP1458911B1 EP 1458911 B1 EP1458911 B1 EP 1458911B1 EP 02787751 A EP02787751 A EP 02787751A EP 02787751 A EP02787751 A EP 02787751A EP 1458911 B1 EP1458911 B1 EP 1458911B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat belt
- core
- belt webbing
- component
- threads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000000306 component Substances 0.000 claims description 20
- 239000008358 core component Substances 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 8
- -1 polyethylene terephthalate Polymers 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 description 13
- 239000011258 core-shell material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
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 woven seat belt webbing with yarns in the warp and weft directions.
- Woven seat belts or straps and methods for their preparation are for example from WO 01/48285 A1 known. They usually consist of multifilaments in the warp direction. In the weft direction monofilaments or a combination of multifilaments and monofilaments are used for the purpose of stiffening. Such stiffening in the transverse direction of garment webbing is necessary to prevent the belt from folding, which would impair its function. In particular, a hindrance of the running of the seat belt by the guide brackets and during winding is avoided by this measure.
- Tissues are thus fabrics which consist of two or more thread systems crossed at right angles, warp and weft, and are produced on a loom or a weaving machine.
- the chain is according to DIN 61 050 the totality required for the production of a fabric and in the finished fabric in the longitudinal direction, ie warp direction, extending threads, the warp yarns referred to.
- weft therefore, the entirety of the threads required for producing a fabric and extending in the finished fabric from edge to edge, ie in the transverse direction or weft direction, is meant.
- Under thread should be understood such linear textile structures that can consist of both multifilaments and monofilaments.
- polyester filaments having diameters in the range of 0.2 to 0.3 mm are generally used as monofilaments in webbing for seat belts.
- the high rigidity of these monofilaments leads to problems during the weaving process; moreover, the fabrics and thus the safety belts made of them also become relatively thick. This increase in thickness due to introduction of the monofilaments as weft threads in the fabric at least partially negates the advantages described above, in particular the running properties of the belt.
- a woven seat belt webbing according to the preamble of claim 1 is made JP-A-2000 234233 known.
- the present invention achieves this object by providing a woven seat belt webbing according to claim 1.
- the seat belt according to the present invention therefore contains, as a weft thread, a multifilament having a bicomponent structure.
- Bikomponenten Modellen are well known to those skilled in the art. These are usually filaments composed of two polymeric components. Such filaments are also referred to as heterofilaments, conjugate fibers or filaments or as composite fibers or filaments.
- the structure of these bicomponent structures may well be different and is also known to the skilled person. For example, bicomponent structures are present as "side-by-side” structures or else as “skin-core” structures or “core-shell” structures. A number of other arrangements are known in the art and need not be further explained.
- Such bicomponent structures are commercially available. Multifilaments containing bicomponent structures can be easily processed during the weaving process, since - in contrast to the relatively thick monofilaments - they have a significantly lower rigidity. As a result, the problems that occur in the prior art in the manufacture of the fabric for seat belts, largely avoid.
- the multifilaments in the weft lay in a flattened configuration between the warp threads. As a result, the seat belt webbing is less thick than one with monofilaments in the weft. Due to this smaller thickness, the handling of the belt, in particular the Aufwickel , significantly improved, which also leads to an increase in safety.
- the bicomponent structure is a core-shell structure wherein the shell component has a lower melting point than the core component.
- the core component is essentially a polymer selected from the group consisting of polyesters, polyamides and polyolefins or copolymers thereof.
- the sheath component also consists essentially of a polymer which is selected from the group consisting of polyesters, polyamides and polyolefins. Starting from these two groups for the components of the bicomponent structure, a whole series of combinations are conceivable and also favorable.
- the weft thread for example, consist of a core-shell structure with polyester as the core component and polyamide 6 as a shell component.
- polymers of the same class of compounds such as polyester as core and co-polyester as sheath component or polyamide 6.6 as core and polyamide 6 as sheath or polypropylene / co-polypropylene combinations are possible, as long as the condition that the core component has a higher Melting point than the coat or skin component is satisfied.
- the difference in the melting temperatures between the two components should not fall below 10 ° C, preferably, the difference is greater than about 30 °. Differences in the melting points of the core and shell components of at most about 100 ° C are generally sufficient.
- a particularly preferred embodiment of the seat belt webbing is obtained when the bicomponent structure has a core-shell structure, the core component consisting essentially of polyethylene terephthalate and the shell component consisting essentially of polybutylene terephthalate.
- the difference in the melting temperatures in this case is about 40 to 50 ° C, wherein the shell component has a melting point of about 220 ° C.
- a further particularly preferred embodiment is obtained when the bicomponent structure has a core-shell structure in which the core component of polyethylene terephthalate and the shell component consists of a polyether ester.
- the polyether ester a copolymer of polybutylene terephthalate and polytetrahydrofuran is excellently suitable.
- Such a polyetherester has a melting point between 190 and 200 ° C.
- the ratio of core to shell component in the preferred bicomponent structures is between 85/15 and 65/35 vol / vol, for example at 70/30 vol / vol.
- the multifilaments with a bicomponent structure advantageously have a total titer between 400 and 1700 dtex, preferably between 400 and 700 dtex. In a particularly preferred embodiment, these multifilaments have a titer of 800 dtex.
- the woven seat belt webbings are subjected to a thermal treatment such that the jacket component of the weft-extending multifilaments with bicomponent structure at least partially melts.
- the temperature for the thermal treatment should be chosen so that the core component is not or not substantially melted with it, i. the strength of the weft threads achieved essentially by the core component is maintained.
- the fabric is then formed in the weft direction of a thermal connection of the weft threads forming multifilaments with bicomponent structure. In the finished fabric these multifilaments thus lead to the transverse stiffness of the safety belt, as well as the monofilaments used in the prior art as a weft thread, but without having the disadvantages in the production of the fabric, which are caused by the monofilaments.
- woven seat belt webbing is characterized by a smaller thickness and at the same time increased flexural rigidity, whereby the thickness of the seat belt webbing can be even further reduced, without resulting in the loss of mechanical properties.
Abstract
Description
Die vorliegende Erfindung betrifft ein gewebtes Sicherheitsgurtband mit Fäden in Kettrichtung und in Schussrichtung.The present invention relates to a woven seat belt webbing with yarns in the warp and weft directions.
Gewebte Sicherheitsgurtbänder oder auch Gurtbänder und Verfahren zu ihrer Herstellung sind beispielsweise aus der
Die Begriffe Gewebe sowie Kette und Schuss und ableitend davon Kettrichtung und Schussrichtung werden im Rahmen dieser Erfindung in einer dem Fachmann geläufigen Weise verwendet. Gewebe sind demnach Flächengebilde, die aus zwei oder mehreren sich rechtwinklig kreuzenden Fadensystemen, Kette und Schuss, bestehen und auf einem Webstuhl bzw. einer Webmaschine hergestellt werden. Als Kette wird nach DIN 61 050 die Gesamtheit der zur Herstellung eines Gewebes erforderlichen und im fertigen Gewebe in Längsrichtung, also Kettrichtung, verlaufenden Fäden, die Kettfäden, bezeichnet. Mit Schuss ist demnach die Gesamtheit der zur Herstellung eines Gewebes erforderlichen und im fertigen Gewebe von Kante zu Kante, also in Querrichtung oder Schussrichtung, verlaufenden Fäden gemeint. Unter Faden sollen solche linienförmigen textilen Gebilde verstanden werden, die sowohl aus Multifilamenten als auch aus Monofilamenten bestehen können.The terms woven fabric and warp and weft and derived therefrom warp direction and weft direction are used in the context of this invention in a manner familiar to those skilled in the art. Tissues are thus fabrics which consist of two or more thread systems crossed at right angles, warp and weft, and are produced on a loom or a weaving machine. The chain is according to DIN 61 050 the totality required for the production of a fabric and in the finished fabric in the longitudinal direction, ie warp direction, extending threads, the warp yarns referred to. With weft, therefore, the entirety of the threads required for producing a fabric and extending in the finished fabric from edge to edge, ie in the transverse direction or weft direction, is meant. Under thread should be understood such linear textile structures that can consist of both multifilaments and monofilaments.
Die Verwendung von Monofilamenten als Schussfäden bringt jedoch auch Nachteile mit sich. So werden als Monofilamente in Geweben für Sicherheitsgurte in aller Regel Polyesterfäden mit Durchmessern in Bereich von 0,2 bis 0,3 mm eingesetzt. Die hohe Steifigkeit dieser Monofilamente führt zum einen zu Problemen beim Webvorgang, darüber hinaus werden die Gewebe und damit die daraus hergestellten Sicherheitsgurte auch relativ dick. Diese Dickenzunahme durch Einführung der Monofilamente als Schussfäden im Gewebe macht die oben geschilderten Vorteile, insbesondere die Laufeigenschaften des Gurtes, zumindest teilweise wieder zunichte.However, the use of monofilaments as weft threads also brings disadvantages. For example, polyester filaments having diameters in the range of 0.2 to 0.3 mm are generally used as monofilaments in webbing for seat belts. On the one hand, the high rigidity of these monofilaments leads to problems during the weaving process; moreover, the fabrics and thus the safety belts made of them also become relatively thick. This increase in thickness due to introduction of the monofilaments as weft threads in the fabric at least partially negates the advantages described above, in particular the running properties of the belt.
Ein gewebles Sicherheitsgurtband gemaß den Oberbegriff des Anspruchs 1 ist aus
Es ist wünschenswert, gewebte Sicherheitsgurtbänder zur Verfügung zu stellen, die zum einen die Vorteile der Verwendung von Monofilamenten in Schussrichtung aufweisen, zum anderen aber die Nachteile, die bei der Herstellung dieser Gewebe und bei der Verwendung der Sicherheitsgurte auftreten, weitestgehend vermeiden.It is desirable to provide woven seat belt webbing which, on the one hand, has the advantages of using monofilaments in the weft direction but, on the other hand, largely avoids the disadvantages which occur in the manufacture of these fabrics and in the use of seat belts.
Die vorliegende Erfindung löst diese Aufgabe durch die Bereitstellung eines gewebten Sicherheitsgurtbandes nach Anspruch 1.The present invention achieves this object by providing a woven seat belt webbing according to claim 1.
Der Sicherheitsgurt gemäß der vorliegenden Erfindung enthält demzufolge als Schussfaden ein Multifilament, das eine Bikomponentenstruktur aufweist. Bikomponentenstrukturen sind dem Fachmann hinlänglich bekannt. Es handelt sich dabei in aller Regel um Filamente, die aus zwei polymeren Komponenten zusammengesetzt sind. Derartige Filamente werden auch als Heterofilamente, konjugierte Fasern bzw. Filamente oder als Kompositfasern oder -filamente bezeichnet. Der Aufbau dieser Bikomponentenstrukturen kann durchaus unterschiedlich sein und ist dem Fachmann ebenfalls bekannt. So liegen Bikomponentenstrukturen beispielsweise als "Seite-an-Seite"-Strukturen oder auch als "Haut-Kern"-Strukturen bzw. "Kern-Mantel"-Strukturen vor. Eine Reihe von weiteren Anordnungen sind einschlägig bekannt und brauchen nicht weiter erläutert zu werden.The seat belt according to the present invention therefore contains, as a weft thread, a multifilament having a bicomponent structure. Bikomponentenstrukturen are well known to those skilled in the art. These are usually filaments composed of two polymeric components. Such filaments are also referred to as heterofilaments, conjugate fibers or filaments or as composite fibers or filaments. The structure of these bicomponent structures may well be different and is also known to the skilled person. For example, bicomponent structures are present as "side-by-side" structures or else as "skin-core" structures or "core-shell" structures. A number of other arrangements are known in the art and need not be further explained.
Solche Bikomponentenstrukturen sind kommerziell erhältlich. Multifilamente, die Bikomponentenstrukturen enthalten, lassen sich während des Webprozesses einfach verarbeiten, da sie - im Gegensatz zu den relativ dicken Monofilamenten - eine deutlich geringere Steifigkeit aufweisen. Dadurch lassen sich die Probleme, die im Stand der Technik bei der Herstellung der Gewebe für Sicherheitsgurte auftreten, weitgehend vermeiden. Die Multifilamente im Schuss legen sich in einer abgeflachten Konfiguration zwischen die Kettfäden. Dadurch ist das Sicherheitsgurtband weniger dick als ein solches mit Monofilamenten im Schuss. Durch diese geringere Dicke wird die Handhabbarkeit des Gurtes, insbesondere das Aufwickelverhalten, deutlich verbessert, was auch zu einer Erhöhung der Sicherheit führt.Such bicomponent structures are commercially available. Multifilaments containing bicomponent structures can be easily processed during the weaving process, since - in contrast to the relatively thick monofilaments - they have a significantly lower rigidity. As a result, the problems that occur in the prior art in the manufacture of the fabric for seat belts, largely avoid. The multifilaments in the weft lay in a flattened configuration between the warp threads. As a result, the seat belt webbing is less thick than one with monofilaments in the weft. Due to this smaller thickness, the handling of the belt, in particular the Aufwickelverhalten, significantly improved, which also leads to an increase in safety.
Es wird für das Sicherheitsgurtband gemäß der vorliegenden Erfindung bevorzugt, dass es sich bei der Bikomponentenstruktur um eine Kern-Mantel-Struktur handelt, wobei die Mantelkomponente einen niedrigeren Schmelzpunkt aufweist als die Kernkomponente.It is preferred for the seat belt webbing according to the present invention that the bicomponent structure is a core-shell structure wherein the shell component has a lower melting point than the core component.
Hierbei hat es sich als vorteilhaft herausgestellt, dass es sich bei der Kernkomponente im wesentlichen um ein Polymer handelt, das gewählt ist aus der Gruppe enthaltend Polyester, Polyamide und Polyolefine oder deren Copolymere.It has been found to be advantageous that the core component is essentially a polymer selected from the group consisting of polyesters, polyamides and polyolefins or copolymers thereof.
In gleicher Weise ist es vorteilhaft, wenn auch die Mantelkomponente im wesentlichen aus einem Polymer besteht, das gewählt ist aus der Gruppe enthaltend Polyester, Polyamide und Polyolefine.
Ausgehend von diesen beiden Gruppen für die Bestandteile der Bikomponentenstruktur sind eine ganze Reihe von Kombinationen denkbar und auch günstig. So kann der Schussfaden z.B. aus einer Kern-Mantel-Struktur mit Polyester als Kernkomponente und Polyamid 6 als Mantelkomponente bestehen. Auch Kombinationen zwischen Polymeren der gleichen Verbindungsklasse, wie z.B. Polyester als Kern- und co-Polyester als Mantelkomponente oder Polyamid 6.6 als Kern und Polyamid 6 als Mantel oder Polypropylen/co-Polypropylen-Kombinationen sind möglich, solange die Bedingung, dass die Kernkomponente einen höheren Schmelzpunkt aufweist als die Mantel- oder Hautkomponente, erfüllt ist. Der Unterschied der Schmelztemperaturen zwischen den beiden Komponenten soll 10 °C nicht unterschreiten, bevorzugt ist der Unterschied größer als etwa 30 °. Differenzen in den Schmelzpunkten der Komponenten für Kern und Mantel von höchstens etwa 100 °C sind in aller Regel völlig ausreichend.In the same way, it is advantageous if the sheath component also consists essentially of a polymer which is selected from the group consisting of polyesters, polyamides and polyolefins.
Starting from these two groups for the components of the bicomponent structure, a whole series of combinations are conceivable and also favorable. Thus, the weft thread, for example, consist of a core-shell structure with polyester as the core component and polyamide 6 as a shell component. Also combinations between polymers of the same class of compounds, such as polyester as core and co-polyester as sheath component or polyamide 6.6 as core and polyamide 6 as sheath or polypropylene / co-polypropylene combinations are possible, as long as the condition that the core component has a higher Melting point than the coat or skin component is satisfied. The difference in the melting temperatures between the two components should not fall below 10 ° C, preferably, the difference is greater than about 30 °. Differences in the melting points of the core and shell components of at most about 100 ° C are generally sufficient.
Eine besonders bevorzugte Ausführungsform des Sicherheitsgurtbandes wird erhalten, wenn die Bikomponentenstruktur eine Kern-Mantel-Struktur aufweist, wobei die Kernkomponente im wesentlichen aus Polyethylenterephthalat und die Mantelkomponente im wesentlichen aus Polybutylenterephthalat besteht. Der Unterschied in den Schmelztemperaturen liegt hierbei bei ca. 40 bis 50 °C, wobei die Mantelkomponente einen Schmelzpunkt von etwa 220 °C aufweist.A particularly preferred embodiment of the seat belt webbing is obtained when the bicomponent structure has a core-shell structure, the core component consisting essentially of polyethylene terephthalate and the shell component consisting essentially of polybutylene terephthalate. The difference in the melting temperatures in this case is about 40 to 50 ° C, wherein the shell component has a melting point of about 220 ° C.
Eine weiterhin besonders bevorzugte Ausführungsform wird erhalten, wenn die Bikomponentenstruktur eine Kern-Mantel-Struktur aufweist, bei der die Kernkomponente aus Polyethylenterephthalat und die Mantelkomponente aus einem Polyetherester besteht. Als Polyetherester eignet sich in hervorragender Weise ein Copolymer aus Polybutylenterephthalat und Polytetrahydrofuran. Ein solcher Polyetherester hat einen Schmelzpunkt zwischen 190 und 200°C.A further particularly preferred embodiment is obtained when the bicomponent structure has a core-shell structure in which the core component of polyethylene terephthalate and the shell component consists of a polyether ester. As the polyether ester, a copolymer of polybutylene terephthalate and polytetrahydrofuran is excellently suitable. Such a polyetherester has a melting point between 190 and 200 ° C.
Das Verhältnis von Kern- zu Mantelkomponente in den bevorzugt eingesetzten Bikomponentenstrukturen liegt zwischen 85/15 und 65/35 vol/vol, beispielsweise bei 70/30 vol/vol.The ratio of core to shell component in the preferred bicomponent structures is between 85/15 and 65/35 vol / vol, for example at 70/30 vol / vol.
Die Multifilamente mit Bikomponentenstruktur weisen vorteilhaft einen Gesamttiter zwischen 400 und 1700 dtex, bevorzugt zwischen 400 und 700 dtex, auf. In einer besonders bevorzugten Ausführungsform weisen diese Multifilamente einen Titer von 800 dtex auf.The multifilaments with a bicomponent structure advantageously have a total titer between 400 and 1700 dtex, preferably between 400 and 700 dtex. In a particularly preferred embodiment, these multifilaments have a titer of 800 dtex.
Die gewebten Sicherheitsgurtbänder werden einer thermischen Behandlung unterzogen, so, dass die Mantelkomponente der in Schussrichtung verlaufenden Multifilamente mit Bikomponentenstruktur wenigstens teilweise aufschmilzt. Die Temperatur für die thermische Behandlung sollte dabei so gewählt werden, dass die Kernkomponente dabei nicht oder im wesentlichen nicht mit angeschmolzen wird, d.h. die im wesentlichen durch die Kernkomponente erreichte Festigkeit der Schussfäden erhalten bleibt. Im Gewebe bildet sich dann in Schussrichtung eine thermische Verbindung der die Schussfäden bildenden Multifilamente mit Bikomponentenstruktur aus. Im fertigen Gewebe führen diese Multifilamente somit zur Quersteifigkeit des Sicherheitsgurtes, so wie die im Stand der Technik eingesetzten Monofilamente als Schussfaden, ohne dabei aber die Nachteile bei der Herstellung des Gewebes aufzuweisen, die durch die Monofilamente hervorgerufen werden.The woven seat belt webbings are subjected to a thermal treatment such that the jacket component of the weft-extending multifilaments with bicomponent structure at least partially melts. The temperature for the thermal treatment should be chosen so that the core component is not or not substantially melted with it, i. the strength of the weft threads achieved essentially by the core component is maintained. In the fabric is then formed in the weft direction of a thermal connection of the weft threads forming multifilaments with bicomponent structure. In the finished fabric these multifilaments thus lead to the transverse stiffness of the safety belt, as well as the monofilaments used in the prior art as a weft thread, but without having the disadvantages in the production of the fabric, which are caused by the monofilaments.
Ein besonderer Vorteil der vorliegenden Erfindung wird jedoch dadurch erhalten, dass die Schussfäden aus Bikomponenten-Multifilamenten im fertigen Gewebe für den Sicherheitsgurt zu einer deutlich geringeren Dicke der Gurte führen.However, a particular advantage of the present invention is obtained in that the weft threads of bicomponent multifilaments in the finished fabric for the safety belt lead to a significantly smaller thickness of the straps.
Die Herstellung von Sicherheitsgurtbändern ist der Fachperson im Prinzip bekannt. Anregungen dazu sind beispielsweise der
Die Erfindung wird durch die nachfolgenden Figuren näher erläutert.The invention is explained in more detail by the following figures.
Es zeigen:
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Fig. 1 : Die von einer mikroskopische Aufnahme (in etwa 30-facher Vergrößerung) abgezeichnete Struktur eines gewebten Sicherheitsgurtbandes enthaltend ein Monofilament als Schussfaden gemäß dem Stand der Technik. -
Fig. 2 : Die von einer mikroskopische Aufnahme (in etwa 30-facher Vergrößerung) abgezeichnete Struktur eines gewebten Sicherheitsgurtbandes enthaltend ein Bikomponenten-Multifilament als Schussfaden gemäß der Erfindung.
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Fig. 1 : The structure of a woven seat belt webbing taken from a micrograph (approximately 30 times magnification) containing a monofilament as a weft thread according to the prior art. -
Fig. 2 : The structure of a woven seat belt webbing obtained from a micrograph (approximately 30x magnification) comprising a bicomponent multifilament as a weft according to the invention.
Das in der
Claims (7)
- Woven seat belt webbing with threads in warp direction and in weft direction, said threads being threads made from multifilaments, with the multifilaments of the threads in weft direction predominantly having a bicomponent structure, said structure consisting of two polymer components with different melting points, with the component with the lower melting point forming at least partially the surface of the individual filaments, characterised in that the multifilaments of the filaments in weft direction are thermally fused together.
- Woven seat belt webbing according to Claim 1, characterised in that the bicomponent structure is a core/sheath structure with the sheath component having a lower melting point than the core component.
- Woven seat belt webbing according to Claim 1 or 2, characterised in that the core component is essentially a polymer selected from the group containing polyesters, polyamides and polyolefins and their copolymers.
- Woven seat belt webbing according to one or more of Claims 1 to 3, characterised in that the sheath component is essentially a polymer selected from the group containing polyesters, polyamides and polyolefins and their copolymers.
- Woven seat belt webbing according to one or more of Claims 1 to 4, characterised in that the bicomponent structure has a core/sheath structure with the core being made essentially of polyethylene terephthalate and the sheath component being made essentially of polybutylene terephthalate.
- Woven seat belt webbing according to one or more of Claims 1 to 5, characterised in that the multifilaments with bicomponent structure have a linear density of between 400 and 1700 dtex.
- Woven seat belt webbing according to one or more of Claims 1 to 6, characterised in that the ratio of core to sheath component lies between 85/15 and 65/35 vol/vol.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20120160U | 2001-12-12 | ||
| DE20120160U DE20120160U1 (en) | 2001-12-12 | 2001-12-12 | Woven seat belt webbing |
| PCT/EP2002/013043 WO2003050337A1 (en) | 2001-12-12 | 2002-11-21 | Woven safety belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1458911A1 EP1458911A1 (en) | 2004-09-22 |
| EP1458911B1 true EP1458911B1 (en) | 2008-02-13 |
Family
ID=7965091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02787751A Expired - Lifetime EP1458911B1 (en) | 2001-12-12 | 2002-11-21 | Woven safety belt |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1458911B1 (en) |
| AT (1) | ATE386146T1 (en) |
| AU (1) | AU2002352079A1 (en) |
| DE (2) | DE20120160U1 (en) |
| WO (1) | WO2003050337A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10235227A1 (en) * | 2002-08-01 | 2004-02-19 | Johann Berger | Method of making a woven webbing |
| 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 |
| 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 |
| JP4761363B2 (en) * | 2005-11-28 | 2011-08-31 | タカタ株式会社 | Seat belt device |
| GB2440530A (en) * | 2006-07-31 | 2008-02-06 | Autoliv Dev | Non-woven safety belt |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000234233A (en) * | 1999-02-09 | 2000-08-29 | Toray Ind Inc | Webbing for sheet belt |
| JP4734737B2 (en) * | 2001-03-07 | 2011-07-27 | タカタ株式会社 | Air belt and air belt device |
-
2001
- 2001-12-12 DE DE20120160U patent/DE20120160U1/en not_active Expired - Lifetime
-
2002
- 2002-11-21 EP EP02787751A patent/EP1458911B1/en not_active Expired - Lifetime
- 2002-11-21 AT AT02787751T patent/ATE386146T1/en not_active IP Right Cessation
- 2002-11-21 WO PCT/EP2002/013043 patent/WO2003050337A1/en active IP Right Grant
- 2002-11-21 DE DE50211709T patent/DE50211709D1/en not_active Expired - Lifetime
- 2002-11-21 AU AU2002352079A patent/AU2002352079A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003050337A1 (en) | 2003-06-19 |
| AU2002352079A1 (en) | 2003-06-23 |
| ATE386146T1 (en) | 2008-03-15 |
| DE50211709D1 (en) | 2008-03-27 |
| EP1458911A1 (en) | 2004-09-22 |
| DE20120160U1 (en) | 2003-04-24 |
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