DE102005052381A1 - Airbag made from airbag material for protection against hot gases, has substance, which is fixable at airbag material, which produces endothermic reaction on contact with hot gases from gas generator - Google Patents
Airbag made from airbag material for protection against hot gases, has substance, which is fixable at airbag material, which produces endothermic reaction on contact with hot gases from gas generator Download PDFInfo
- Publication number
- DE102005052381A1 DE102005052381A1 DE200510052381 DE102005052381A DE102005052381A1 DE 102005052381 A1 DE102005052381 A1 DE 102005052381A1 DE 200510052381 DE200510052381 DE 200510052381 DE 102005052381 A DE102005052381 A DE 102005052381A DE 102005052381 A1 DE102005052381 A1 DE 102005052381A1
- Authority
- DE
- Germany
- Prior art keywords
- airbag
- substance
- hot gases
- coating
- airbag material
- 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.)
- Ceased
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
-
- 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
- B60R2021/23504—Inflatable members characterised by their material characterised by material
- B60R2021/23509—Fabric
- B60R2021/23514—Fabric coated fabric
Abstract
Description
Die Erfindung betrifft einen Airbag aus einem Airbagmaterial mit einer Beschichtung.The The invention relates to an airbag made of an airbag material with a Coating.
Aus dem Stand der Technik sind Airbags aus einem Gewebe bekannt, die zum Schutz vor heißen Gasen mit einer isolierenden Beschichtung versehen sind. Ebenfalls kann die Beschichtung die Gleitfähigkeit von Gewebebahnen aufeinander verbessern.Out The prior art airbags are known from a tissue, the for protection against hot gases provided with an insulating coating. Likewise the coating's lubricity of fabric webs improve on each other.
Aufgabe der vorliegenden Erfindung ist es, einen Airbag mit einem Airbagmaterial hinsichtlich der thermischen Beständigkeit gegenüber den heißen, von einem Gasgenerator erzeugten Gasen zu verbessern.task The present invention is an airbag with an airbag material in terms of thermal resistance to the be called, to improve gases generated by a gas generator.
Erfindungsgemäß wird diese Aufgabe durch einen Airbag mit den Merkmalen des Anspruchs 1 gelöst, bei dem an dem Airbagmaterial, das zum Beispiel aus einem Gewebe, einem Gewirke, einem Vliesstoff oder einer Folie bestehen kann, eine an dem Airbagmaterial fixierbare Substanz vorgesehen ist, die bei Kontakt mit heißen Gasen aus einem Gasgenerator eine endotherme Reaktion ausführt. Die endotherme Reaktion zwischen den heißen Gasen und der Substanz reduziert die Umgebungstemperatur in der Grenzschicht zwischen dem Gewebe und den heißen Ga sen, so dass aufgrund der in dem Airbagmaterial auftretenden geringeren Temperaturen eine erhöhte Festigkeit bereitgestellt wird. Durch die endotherme Reaktion wird der Aufheizeffekt für das Airbagmaterial aufgrund der Reduzierung der Gastemperaturen in der Grenzschicht oder der Wärmeleitfähigkeit durch das Gewebe verringert, was zu einer Festigkeitserhöhung des gesamten Airbags führt.According to the invention this Problem solved by an airbag with the features of claim 1, at on the airbag material, which is made of a fabric, for example Knitted fabric, a nonwoven fabric or a film may be one on the Airbag material fixable substance is provided, which upon contact with hot Gas from a gas generator performs an endothermic reaction. The endothermic Reaction between the hot ones Gases and the substance reduces the ambient temperature in the Boundary layer between the fabric and the hot Ga sen, so due to the lower temperatures occurring in the airbag material increased Strength is provided. Due to the endothermic reaction is the heating effect for the airbag material due to the reduction in gas temperatures in the boundary layer or the thermal conductivity reduced by the tissue, resulting in an increase in strength of the entire airbags leads.
Eine Weiterbildung der Erfindung sieht vor, dass das Airbagmaterial mit einer Beschichtung versehen ist, das eine isolierende Wirkung oder eine oder Verbesserung der Wärmebeständigkeit des Airbagmaterials bewirkt.A Further development of the invention provides that the airbag material with a coating that has an insulating effect or or improving the heat resistance causes the airbag material.
Die Substanz kann in der Beschichtung auf dem Airbagmaterial eingebettet oder in dem Airbagmaterial eingelagert oder daran angelagert sein. Ebenfalls kann die Substanz von der Beschichtung abgedeckt sein, wobei eine Anordnung der Substanz auf der dem Airbagmaterial abgewandten Seite der Beschichtung alternativ möglich ist.The Substance can be embedded in the coating on the airbag material or embedded in or attached to the airbag material. Also the substance may be covered by the coating, one being Arrangement of the substance on the side facing away from the airbag material the coating alternatively possible is.
Ebenfalls kann die Substanz zwischen dem Airbagmaterial und der Beschichtung angeordnet sein, beispielsweise auf der Innenseite des Airbags oder alternativ auf der Airbagaußenseite. In einer beispielhaften Ausgestaltung kann die Substanz aus hydriertem Aluminiumoxid (Al2O33H2O), Magnesiumhydroxid (MgOH2) und/oder Calciumcarbonat (CaCO3) bestehen. Die Substanz kann in Partikelform, insbesondere in Nanopartikelform verarbeitet und auf dem Airbagmaterial aufgebracht sein, bei einem Gewebe beispielsweise eingelagert.Likewise, the substance may be arranged between the airbag material and the coating, for example on the inside of the airbag or alternatively on the outside of the airbag. In an exemplary embodiment, the substance may consist of hydrated aluminum oxide (Al 2 O 3 3H 2 O), magnesium hydroxide (MgOH 2 ) and / or calcium carbonate (CaCO 3 ). The substance may be processed in particulate form, in particular in nanoparticle form and applied to the airbag material, for example when stored in a fabric.
Nachfolgend
werden mögliche
Anordnungen der Beschichtungen und Substanzen an oder auf dem Airbagmaterial
in den nachfolgenden
Gegenwärtige Airbagbeschichtungen ermöglichen die Durchleitung von Hitze der heißen, von dem Gasgenerator erzeugten Gase durch das Airbaggewebe oder den Airbagstoff. Diese Hitze verringert die Zugfestigkeit des Materials und damit die Gesamtfestigkeit und Gestaltfestigkeit des Airbags insgesamt.Current airbag coatings enable the transmission of heat from the hot, generated by the gas generator Gases through the airbag fabric or the airbag fabric. This heat is reduced the tensile strength of the material and thus the overall strength and Structural strength of the airbag as a whole.
Der
Airbag kann aus einem Material bestehen, das als Gewebe, Gewirke,
Vliesstoff oder Material ausgebildet ist. Nachfolgend wird von Airbaggewebe
gesprochen, darin eingeschlossen sind die anderen Materialien, ggf.
mit einer anderen Beschichtungsart behandelt. Um dem Effekt der
Verringerung der Festigkeit zu begegnen, wird das Airbaggewebe
Eine
alternative Ausgestaltung oder Anordnung der Beschichtungen und
Substanzen ist in der
In
der
In
der
In
der
Durch
die Substanz
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510052381 DE102005052381A1 (en) | 2005-10-31 | 2005-10-31 | Airbag made from airbag material for protection against hot gases, has substance, which is fixable at airbag material, which produces endothermic reaction on contact with hot gases from gas generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510052381 DE102005052381A1 (en) | 2005-10-31 | 2005-10-31 | Airbag made from airbag material for protection against hot gases, has substance, which is fixable at airbag material, which produces endothermic reaction on contact with hot gases from gas generator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005052381A1 true DE102005052381A1 (en) | 2007-05-03 |
Family
ID=37912874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510052381 Ceased DE102005052381A1 (en) | 2005-10-31 | 2005-10-31 | Airbag made from airbag material for protection against hot gases, has substance, which is fixable at airbag material, which produces endothermic reaction on contact with hot gases from gas generator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005052381A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011116447A1 (en) * | 2011-10-20 | 2013-04-25 | Gm Global Technology Operations, Llc | Safety device with elastic membrane |
US8851517B2 (en) | 2011-10-20 | 2014-10-07 | GM Global Technology Operations LLC | Safety device with elastic membrane |
DE102022101504A1 (en) | 2022-01-24 | 2023-07-27 | Zf Airbag Germany Gmbh | Gas bag with a coating |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5580086A (en) * | 1995-05-22 | 1996-12-03 | Mcalister; Roy E. | Crash protection method and apparatus |
JPH093778A (en) * | 1995-06-19 | 1997-01-07 | Kuraray Co Ltd | Ground fabric for air bag |
GB2343151A (en) * | 1998-10-30 | 2000-05-03 | C M Hammar Utveckling Ab | Inflatable structure with gas generator and protective diffuser |
-
2005
- 2005-10-31 DE DE200510052381 patent/DE102005052381A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5580086A (en) * | 1995-05-22 | 1996-12-03 | Mcalister; Roy E. | Crash protection method and apparatus |
JPH093778A (en) * | 1995-06-19 | 1997-01-07 | Kuraray Co Ltd | Ground fabric for air bag |
GB2343151A (en) * | 1998-10-30 | 2000-05-03 | C M Hammar Utveckling Ab | Inflatable structure with gas generator and protective diffuser |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011116447A1 (en) * | 2011-10-20 | 2013-04-25 | Gm Global Technology Operations, Llc | Safety device with elastic membrane |
US8851517B2 (en) | 2011-10-20 | 2014-10-07 | GM Global Technology Operations LLC | Safety device with elastic membrane |
US9120459B2 (en) | 2011-10-20 | 2015-09-01 | GM Global Technology Operations LLC | Safety device with elastic membrane |
DE102022101504A1 (en) | 2022-01-24 | 2023-07-27 | Zf Airbag Germany Gmbh | Gas bag with a coating |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R002 | Refusal decision in examination/registration proceedings | ||
R082 | Change of representative |
Representative=s name: GRAMM, LINS & PARTNER PATENT- UND RECHTSANWAEL, DE |
|
R003 | Refusal decision now final |