DE19861345B4 - Method for producing airbags - Google Patents
Method for producing airbags Download PDFInfo
- Publication number
- DE19861345B4 DE19861345B4 DE19861345A DE19861345A DE19861345B4 DE 19861345 B4 DE19861345 B4 DE 19861345B4 DE 19861345 A DE19861345 A DE 19861345A DE 19861345 A DE19861345 A DE 19861345A DE 19861345 B4 DE19861345 B4 DE 19861345B4
- Authority
- DE
- Germany
- Prior art keywords
- woven
- gas
- fabric
- airbag
- layer
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/02—Inflatable articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
- D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23192—Roof bags, i.e. protecting the occupant in a roll-over situation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
- B60R2021/23542—Weaving
- B60R2021/23547—Weaving one piece weaving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
- B60R2021/2612—Gas guiding means, e.g. ducts
- B60R2021/2615—Gas guiding means, e.g. ducts for diverting the gas into a plurality of bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
- B60R2021/2612—Gas guiding means, e.g. ducts
- B60R2021/2617—Curtain bag nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
Abstract
Bei einem Verfahren zum Herstellen von Airbags als Gewebe, das in einem Bereich einer oder mehrerer Kammern wenigstens zweilagig und in die Kammern umgebenden Randbereichen einlagig gewebt wird, wird vorgesehen, dass an das Gewebe des Airbags ein oder mehrere schlauchartige Gasführungen angewebt werden, die im mittleren Bereich zweilagig und an den Rändern einlagig gewebt werden.In a method for producing airbags as a fabric, which is woven in one layer in a region of one or more chambers at least two-ply and in the chambers surrounding edge regions, it is provided that one or more tubular gas guides are weaved to the fabric of the airbag, which in the middle Two-ply range and single-layer woven at the edges.
Description
Die Erfindung betrifft ein Verfahren zum Herstellen von Airbags als ein Gewebe, das in einem Bereich einer oder mehrerer aufblasbarer Kammern wenigstens zweilagig und in die Kammern umgebenden Randbereichen einlagig gewebt wird.The The invention relates to a method for producing airbags as a tissue that is in an area of one or more inflatable Chambers at least two layers and in the chambers surrounding edge regions is woven in one layer.
Ein
Verfahren der eingangs genannten Art ist bekannt (
Es wird heute angestrebt, die Insassen von Autos, Bussen, Zügen oder Flugzeugen o.dgl. nicht nur im Frontbereich mittels eines Airbags zu schützen, sondern auch in seitlichen Bereichen. Beispielsweise erscheint es sinnvoll, die Längsholme von Fahrzeugdächern mit Airbags auszurüsten, die die Fahrzeuginsassen in dieser Richtung schützen.It is aimed at today, the occupants of cars, buses, trains or Aircraft or the like not only in the front area by means of an airbag to protect, but also in lateral areas. For example, it appears useful, the longitudinal bars of vehicle roofs to equip with airbags, which protect the vehicle occupants in this direction.
Aus
der
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art so weiterzuentwickeln, daß dadurch Airbags mit beliebiger Kontur oder Form herstellbar sind.Of the Invention is based on the object, a method of the initially so-called type so that thereby airbags with any contour or shape can be produced.
Diese Aufgabe wird durch ein Verfahren gemäß Anspruch 1 gelöst.These The object is achieved by a method according to claim 1.
Auf diese Weise lassen sich Airbags nahezu beliebiger Form herstellen, wenn an das Gewebe des Airbags ein oder mehrere schlauchartige Gasführungen angewebt werden. Diese Gasführungen, die sich in dem einheitlichen Webvorgang herstellen lassen, können benutzt werden, um das Gas von einem Gasgenerator dem Airbag zuzuführen.On this way, airbags can be made almost any shape, if the fabric of the airbag one or more tubular gas ducts be angewnbt. These gas guides, which can be produced in the uniform weaving process can be used to supply the gas from a gas generator to the airbag.
In weiterer Ausgestaltung dieser Erfindung wird vorgesehen, daß die Gasführungen zum Bilden von Gasverteilleitungen umgestülpt und in die Kammer eingesteckt werden. Diese angewebten Gasführungen bilden dann innerhalb der Kammer Gasverteilungen, die gezielt das Gas dem Inneren der Kammer zuführen. Dadurch kann auf rohrförmige oder ähnlich gestaltete Gasverteilkanäle verzichtet werden, die das Zusammenpacken des Airbags behindern können. Diese umgestülpten und eingesteckten Gasverteilleitungen sind einteilig mit dem Airbag hergestellt, so daß auf Nähte oder sonstige Verbindungsstellen verzichtet werden kann. Darüber hinaus bilden sie in dem umgestülpten Bereich einen sehr festen Anschluß, an welchem sich ein Gasgenerator sicher anbringen läßt.In Another embodiment of this invention provides that the gas ducts inverted to form Gasverteilleitungen and plugged into the chamber become. These inaugurated gas guides then form within the chamber gas distributions, specifically the Supply gas to the interior of the chamber. This can be on tubular or similarly designed Gasverteilkanäle be omitted, which hinder the packing together of the airbag can. This everted and inserted Gasverteilleitungen are integral with the airbag made so that on Seams or Other connection points can be dispensed with. Furthermore Form in the inverted Area a very strong connection, which is a gas generator safe to install.
In weiterer Ausgestaltung dieser Erfindung wird vorgesehen, daß die Gasführungen vor dem Umstülpen außen mit einem Kunststoff beschichtet werden. Diese Beschichtung befindet sich dann nach dem Umstülpen auf der Innenseite der Gasverteilleitungen, so daß einerseits die Strömungsverhältnisse aufgrund der Kunststoffbeschichtung verbessert werden, während andererseits auch in diesem Bereich, der bei Auslösen des Gasgenerators am stärksten belastet ist, eine höhere Festigkeit erhalten wird. Diese höhere Festigkeit ist auch deshalb vorteilhaft, weil Verunreinigungen aus dem Gasgenerator austreten können, die sonst das Gewebe des Airbags belasten könnten.In Another embodiment of this invention provides that the gas ducts before everting Outside be coated with a plastic. This coating is located then after the everting on the inside of the gas distribution lines, so that on the one hand the flow conditions due the plastic coating can be improved while on the other hand in this area when triggered the gas generator most heavily loaded is a higher one Strength is obtained. This higher strength is also why advantageous because impurities can escape from the gas generator, the otherwise you could strain the fabric of the airbag.
In weiterer Ausgestaltung der Erfindung wird vorgesehen, daß die Gasführungen mit Schußfäden gewebt werden, die eine höhere mechanische und/oder thermische Festigkeit als die Schußfäden des übrigen Gewebes aufweisen. Auch hierdurch ist es möglich, den höheren mechanischen und vor allem thermischen Belastungen unmittelbar nach dem Austreten des Gases aus dem Gasgenerator im Bereich der Gasführungen und Gasverteilleitungen Rechnung zu tragen.In Another embodiment of the invention provides that the gas ducts woven with wefts be a higher one mechanical and / or thermal resistance than the weft threads of the remaining fabric exhibit. This also makes it possible, the higher mechanical and above all thermal loads immediately after emergence of the gas from the gas generator in the region of the gas guides and gas distribution lines.
In weiterer Ausgestaltung wird vorgesehen, daß in dem Bereich der Kammer eine oder mehrere einlagige Fixierstellen eingewebt werden, die in dem Bereich des zweilagigen Gewebes eine Aufnahme zum Fixieren der Gasverteilleitung bilden. Dadurch wird sichergestellt, daß die Gasverteilleitung sich in einer definierten Position befindet und diese definierte Position während des Zusammenpackens des Airbags und während des Nichtge brauchs nicht verläßt. Der Airbag wird deshalb immer in definierter Weise bei einem Auslösen des Gasgenerators aufgeblasen.In Another embodiment is provided that in the region of the chamber one or more single-layer fixation sites are woven, the in the region of the two-ply tissue a receptacle for fixing form the gas distribution line. This ensures that the gas distribution line is in a defined position and defines it Position during the packing of the airbag and during Nichtge not used leaves. Of the Airbag is therefore always in a defined manner when the triggering Inflated inflator.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der in den Zeichnungen dargestellten Ausführungsbeispiele.Further Features and advantages of the invention will become apparent from the following Description of the embodiments shown in the drawings.
Der
in
Die
in Längsrichtung
des Airbags
Der
Airbag
Der
Airbag
Wenn
Randbereiche, wie bei dem Ausführungsbeispiel
die Randbereiche
Das
Ausführungsbeispiel
nach
Die
Gasleitung
Die
Gasleitung
Bevorzugt
wird vorgesehen, wie dies in
Bei
einer abgewandelten, nicht dargestellten Ausführungsform werden im Bereich
der Austrittsöffnungen
Wie
in
Mittels der Wahl einer unterschiedlichen Bindung in bestimmten Bereichen der zweilagig gewebten Gewebe ist es darüber hinaus möglich, die Gasdurchlässigkeit der Gewebelagen zu beeinflussen und insbesondere an bestimmten Bereichen eine erhöhte Gasdurchlässigkeit zu erzeugen.through the choice of a different bond in certain areas the two-ply woven fabric, it is also possible, the Gas permeability to influence the tissue layers and in particular in certain areas an increased Gas permeability to create.
Mit
Hilfe der Erfindung ist es möglich,
nahezu beliebig geformte Airbags herzustellen, deren Längserstreckung
im wesentlichen nur durch die Webbreite einer Webmaschine beschränkt ist.
In
Wie
schon anhand von
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998107572 DE19807572C2 (en) | 1998-02-23 | 1998-02-23 | Airbag manufacturing method |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19861345B4 true DE19861345B4 (en) | 2007-03-08 |
Family
ID=7858657
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998107572 Withdrawn - After Issue DE19807572C2 (en) | 1998-02-23 | 1998-02-23 | Airbag manufacturing method |
DE19861345A Expired - Fee Related DE19861345B4 (en) | 1998-02-23 | 1998-02-23 | Method for producing airbags |
DE19861347A Expired - Fee Related DE19861347B4 (en) | 1998-02-23 | 1998-02-23 | Method for producing airbags as fabric, airbag fabric and airbag |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998107572 Withdrawn - After Issue DE19807572C2 (en) | 1998-02-23 | 1998-02-23 | Airbag manufacturing method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19861347A Expired - Fee Related DE19861347B4 (en) | 1998-02-23 | 1998-02-23 | Method for producing airbags as fabric, airbag fabric and airbag |
Country Status (1)
Country | Link |
---|---|
DE (3) | DE19807572C2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357467B (en) * | 1999-12-22 | 2003-05-21 | Autoliv Dev | Improvements in or relating to an air-bag arrangement |
DE20009237U1 (en) * | 2000-05-23 | 2000-09-28 | Trw Repa Gmbh | Airbag module for vehicle occupant restraint systems |
JP2003063343A (en) * | 2001-08-24 | 2003-03-05 | Nippon Plast Co Ltd | Air bag |
GB2393692A (en) * | 2002-10-01 | 2004-04-07 | Autoliv Dev | Air bag with reinforced apertures in gas duct |
GB2399792A (en) | 2003-03-24 | 2004-09-29 | Autoliv Dev | An air-bag mounting arrangement |
ES2289623T3 (en) | 2005-06-02 | 2008-02-01 | Polyamide High Performance Gmbh | FABRIC FOR AIRBAGS. |
DE102007056137B4 (en) * | 2007-11-20 | 2015-05-13 | TAKATA Aktiengesellschaft | Airbag with a filler neck and airbag arrangement with a gas bag and a gas generator |
DE102021118306A1 (en) * | 2021-07-15 | 2023-01-19 | Autoliv Development Ab | Inflatable airbag for a motor vehicle safety device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4302904A1 (en) * | 1993-02-02 | 1994-08-04 | Johann Berger | Process for manufacturing textile airbag from tubular material |
EP0458838B1 (en) * | 1989-02-16 | 1996-05-08 | Airbags International Limited | Air bag |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ37795A3 (en) * | 1992-08-14 | 1995-11-15 | Johann Berger | Textile hollow body and process for producing thereof |
DE4324487B4 (en) * | 1993-07-21 | 2006-03-30 | Bst Safety Textiles Gmbh | Textile hollow body and process for its production |
DE4226954A1 (en) * | 1992-08-14 | 1994-02-17 | Johann Berger | Airbag construction - uses jacquard weaving procedure on four beams |
-
1998
- 1998-02-23 DE DE1998107572 patent/DE19807572C2/en not_active Withdrawn - After Issue
- 1998-02-23 DE DE19861345A patent/DE19861345B4/en not_active Expired - Fee Related
- 1998-02-23 DE DE19861347A patent/DE19861347B4/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0458838B1 (en) * | 1989-02-16 | 1996-05-08 | Airbags International Limited | Air bag |
DE4302904A1 (en) * | 1993-02-02 | 1994-08-04 | Johann Berger | Process for manufacturing textile airbag from tubular material |
Also Published As
Publication number | Publication date |
---|---|
DE19807572A1 (en) | 1999-08-26 |
DE19861347B4 (en) | 2007-03-08 |
DE19807572C2 (en) | 2003-07-24 |
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Legal Events
Date | Code | Title | Description |
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Owner name: BST SAFETY TEXTILES GMBH, 79689 MAULBURG, DE |
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Ref document number: 19807572 Country of ref document: DE Kind code of ref document: P |
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8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ITG AUTOMOTIVE SAFETY TEXTILES GMBH, 79689 MAU, DE |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: GLOBAL SAFETY TEXTILES GMBH, 79689 MAULBURG, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |