DE102004056159A1 - Airbag module for motor vehicle, has bag ring in housing, where bag ring comprises openings that are approximately thrust neutral and closed after assembling assembly group that constitute inflator, diffuser and bag ring, by hatches - Google Patents
Airbag module for motor vehicle, has bag ring in housing, where bag ring comprises openings that are approximately thrust neutral and closed after assembling assembly group that constitute inflator, diffuser and bag ring, by hatches Download PDFInfo
- Publication number
- DE102004056159A1 DE102004056159A1 DE102004056159A DE102004056159A DE102004056159A1 DE 102004056159 A1 DE102004056159 A1 DE 102004056159A1 DE 102004056159 A DE102004056159 A DE 102004056159A DE 102004056159 A DE102004056159 A DE 102004056159A DE 102004056159 A1 DE102004056159 A1 DE 102004056159A1
- Authority
- DE
- Germany
- Prior art keywords
- airbag module
- opening
- bag ring
- housing
- module according
- 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.)
- Granted
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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
- B60R21/26—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
- B60R21/276—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 to vent the inflation fluid source, e.g. in case of overpressure
-
- 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
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
- B60R21/2171—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters
Abstract
Description
Die Erfindung betrifft ein Airbagmodul nach dem Oberbegriff des Anspruchs 1.The The invention relates to an airbag module according to the preamble of the claim 1.
Der Gasgenerator eines Airbagmoduls löst bei einer definierten Temperatur aus und entwickelt innerhalb einer sehr kurzen Zeitspanne eine definierte Gasmasse. Um diese Gasmasse gezielt in den Gassack zu lenken, werden Diffusoren und Bagringe verwendet, die den Gasgenerator umschließen. Durch dieses Lenken des Gasstroms in eine Richtung entsteht eine Rückstoßimpuls auf das Modul.Of the Gas generator of an airbag module releases at a defined temperature and develops a defined one within a very short period of time Gas mass. To direct this gas mass targeted in the gas bag, be Diffusers and bag rings used, which enclose the gas generator. By this steering of the gas flow in one direction creates a recoil pulse on the module.
Aus dem US-Patent 5 683 102 ist ein Airbagmodul bekannt, bei dem in einem Modulgehäuse zusätzliche Gasaustrittsöffnungen vorgesehen sind, die im Brandfall aufschmelzen. Diese zusätzlichen Gasaustrittsöffnungen erlauben das direkte Einwirken von Hitze und Flammen auf den Gasgenerator, so dass dieser in kürzerer Zeit zündet. Weiterhin wird die Belastung der Modulwände verringert.Out US Pat. No. 5,683,102 discloses an airbag module in which a module housing additional Gas outlet openings are provided, which melt in the event of fire. This extra Gas outlet openings allow the direct action of heat and flames on the gas generator, so that this in shorter Time ignites. Furthermore, the load on the module walls is reduced.
Weiterhin
ist aus dem Gebrauchsmuster
Der Erfindung liegt die Aufgabe zugrunde, Unfälle durch ein Airbagmodul als komplexe Baugruppe zu verringern, insbesondere auch bei äußerer Erhitzung des Airbagmoduls, z.B. in einem Brandfall.Of the Invention is the object of accidents by an airbag module as To reduce complex assembly, especially in external heating of the airbag module, e.g. in a fire.
Erfindungsgemäß wird das gemäß den Merkmalen des Anspruchs 1 erreicht.According to the invention according to the characteristics of claim 1 achieved.
So ist bei einem Airbagmodul mit Gasgenerator, Diffusor und Bagring, wobei der Bagring in einem Gehäuse befestigbar ist, erfindungsgemäß vorgesehen, dass der Bagring mindestens eine solche Öffnung aufweist, dass die aus Gasgenerator, Diffusor und Bagring bestehende Baugruppe zumindest annähernd schubneutral ist und dass diese Öffnung nach dem Einbau der Baugruppe in das Gehäuse verschlossen ist.So is in an airbag module with gas generator, diffuser and bag ring, the bagring being in a housing is fastened, according to the invention, that the bagring has at least one such opening that the Gas generator, diffuser and bag ring existing assembly at least approximately thrust neutral is and that this opening is after the installation of the module is sealed in the housing.
Die Öffnung im Bagring kann sowohl als dynamische als auch als statische Öffnung ausgebildet sein, die mindestens einer Abströmöffnung des Diffusors gegenüberliegt.The opening in the Bagring can be designed both as a dynamic and as a static opening, the at least one outflow opening of the Diffuser opposite.
In einer ersten Ausführungsform einer dynamischen Öffnung weist diese mindestens einen Verschluss auf, der beim Nichtvorhandensein des Gehäuses durch den Druck des aus dem Gasgenerator ausströmenden Gases zu öffnen ist. Insbesondere ist die Öffnung durch mindestens eine Klappe zumindest teilweise verschließbar. Als Klappe kann ein teilweise vom Bagring abgetrennter Abschnitt vorgesehen sein. Bei diesem Ausführungsbeispiel ist also die Klappe Teil des Bagrings. Sie bleibt an einer Seite mit dem Bagring verbunden und kann bei Auslösung des Gasgenerators um diese verbliebene Verbindungsstelle herum vom Bagring wegklappen.In a first embodiment a dynamic opening this has at least one closure, which in the absence of the housing be opened by the pressure of the effluent gas from the gas generator. In particular, the opening at least partially closed by at least one flap. When Flap can be provided a partially separated from the bagring section be. In this embodiment so the flap is part of the Bagrings. She stays on one side connected to the bagring and can when triggered the gas generator to this Fold away the remaining joint around the bagring.
In einer anderen Ausführungsform ist eine sich über den gesamten Bagring erstreckende Öffnung vorgesehen. Diese ist vorzugsweise durch eine Klappe oder durch zwei Klappen verschlossen.In another embodiment is a over provided the entire bag ring extending opening. This is preferably closed by a flap or by two flaps.
In einer weiteren Ausführungsform weist der Bagring in seinem mittleren Bereich mehrere kleine Öffnungen auf, die jeweils durch eine Klappe verschließbar sind.In a further embodiment the bagring has several small openings in its central area on, which are each closed by a flap.
In einem zweiten Ausführungsbeispiel einer dynamischen Öffnung weist diese einen aufreißbaren Verschluss auf. So kann die Öffnung durch eine Folie abgedeckt sein. Diese Folie würde bei unvorgesehener Auslösung des Gasgenerators insbesondere auch infolge Hitzeeinwirkung durch den Druck des aus dem Gasgenerator ausströmenden Gases aufreißen.In a second embodiment a dynamic opening this one has a rupturable closure on. So can the opening be covered by a foil. This film would in case of accidental release of the Gas generator in particular also due to heat by the Crack the pressure of the gas flowing out of the gas generator.
Es kann aber auch ein durch Hitzeeinwirkung schmelzender Verschluss vorgesehen sein, z.B. in Form einer Aluminiumfolie. Diese Folie kann so ausgelegt sein, dass sie bereits vor der Auslösung des Gasgenerators schmilzt oder verbrennt.It but can also be a melting by heat closure be provided, e.g. in the form of an aluminum foil. This slide can be designed so that it is already before the triggering of the gas generator melts or burns.
Sofern mindestens eine statische Öffnung im Bagring vorgesehen ist, liegt diese mindestens einer Abströmöffnung des Diffusors gegenüber. Bei dieser Ausführungsform ist die Öffnung bei Nichtvorhandensein eines Gehäuses, in dem der Bagring befestigt ist, im Gegensatz zur dynamischen Öffnung ständig offen.Provided at least one static opening is provided in the bagring, this is at least one outlet opening of the Diffusers opposite. In this embodiment is the opening in the absence of a housing, in which the bagring is attached, in contrast to the dynamic opening constantly open.
Bei allen Ausführungsformen ist die Öffnung bzw. der Verschluss zweckmäßig durch die Innenwand des Gehäuses in Verschlussstellung gehalten. Durch die Ausnutzung der Gehäusewand als Verschlussmittel, indem der Bagring an der Gehäusewand anliegt, erübrigen sich zusätzliche Verschlussmittel.at all embodiments is the opening or the closure appropriate the inner wall of the housing held in closed position. By the utilization of the housing wall as a closure means by the bagring on the housing wall is present, unnecessary additional Closure means.
Die Erfindung soll in Ausführungsbeispielen anhand von Zeichnungen erläutert werden. Es zeigen:The Invention is based on embodiments explained by drawings become. Show it:
Die
In
den
Die
Beim
Ausführungsbeispiel
der
Die
Die
In
der
In
der
Die
- 11
- Gasgeneratorinflator
- 22
- BagringBagring
- 33
- Diffusordiffuser
- 44
- Gassackairbag
- 55
- Schlitzeslots
- 66
- Flanschflange
- 77
- Flanschflange
- 88th
- Gehäusecasing
- 99
- BagringBagring
- 1010
- Öffnungenopenings
- 1111
- Klappenfold
- 1212
- BagringBagring
- 1313
- Öffnungopening
- 1414
- Klappeflap
- 1515
- BagringBagring
- 1616
- Öffnungopening
- 1717
- Klappeflap
- 1818
- Klappeflap
- 19–2219-22
- GasaustrittsöffnungenGas outlet openings
- 2323
- BagringBagring
- 2424
- Schlitzeslots
- 2525
- BagringBagring
- 2626
- Öffnungenopenings
- 2727
- BagringBagring
- 2828
- Öffnungenopenings
- 2929
- Foliefoil
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004056159A DE102004056159B4 (en) | 2004-11-18 | 2004-11-18 | airbag module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004056159A DE102004056159B4 (en) | 2004-11-18 | 2004-11-18 | airbag module |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004056159A1 true DE102004056159A1 (en) | 2006-06-01 |
DE102004056159B4 DE102004056159B4 (en) | 2013-11-14 |
Family
ID=36371156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004056159A Expired - Fee Related DE102004056159B4 (en) | 2004-11-18 | 2004-11-18 | airbag module |
Country Status (1)
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DE (1) | DE102004056159B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110109069A1 (en) * | 2009-11-10 | 2011-05-12 | Gm Global Technology Operations, Inc. | Airbag module for a vehicle |
DE102010026745A1 (en) * | 2010-07-09 | 2012-01-12 | Autoliv Development Ab | Gas generator unit for use in air bag of vehicle restraint system, has deflection element whose layer covers aperture and is movable relative to another layer by gas pressure produced by gas generator to release aperture |
US11279317B2 (en) * | 2019-12-09 | 2022-03-22 | Autoliv Asp, Inc. | Gas generator of an inflatable airbag, the gas generator including a diffuser for diffusing inflation gases |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578478A1 (en) * | 1992-07-06 | 1994-01-12 | Morton International, Inc. | Vented gas passenger side air bag inflator |
DE4419549A1 (en) * | 1993-06-08 | 1994-12-15 | Takata Corp | Inflation device for an air or gas bag device |
JPH07215161A (en) * | 1994-01-27 | 1995-08-15 | Daicel Chem Ind Ltd | Gas generator for air bag |
EP0774387A2 (en) * | 1995-11-15 | 1997-05-21 | Morton International, Inc. | Airbag flow diversion walls for hot deployment performance levelling |
US5683102A (en) * | 1996-04-08 | 1997-11-04 | Morton International, Inc. | Ported passenger airbag module can |
DE20303115U1 (en) * | 2003-02-20 | 2003-11-20 | Takata Petri Gmbh Ulm | Occupant protection device |
WO2004018267A1 (en) * | 2002-08-20 | 2004-03-04 | Takata-Petri Ag | Airbag module having a gas generator |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9408908U1 (en) * | 1994-05-31 | 1994-11-17 | Trw Repa Gmbh | Airbag protection device |
DE19834690A1 (en) * | 1998-07-31 | 2000-02-03 | Takata Europ Gmbh | Airbag device with gas generator |
DE20206340U1 (en) * | 2002-04-22 | 2002-08-29 | Trw Repa Gmbh | Airbag module |
DE20300500U1 (en) * | 2003-01-13 | 2003-06-18 | Trw Repa Gmbh | Gas generator and gas bag module |
-
2004
- 2004-11-18 DE DE102004056159A patent/DE102004056159B4/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578478A1 (en) * | 1992-07-06 | 1994-01-12 | Morton International, Inc. | Vented gas passenger side air bag inflator |
DE4419549A1 (en) * | 1993-06-08 | 1994-12-15 | Takata Corp | Inflation device for an air or gas bag device |
JPH07215161A (en) * | 1994-01-27 | 1995-08-15 | Daicel Chem Ind Ltd | Gas generator for air bag |
EP0774387A2 (en) * | 1995-11-15 | 1997-05-21 | Morton International, Inc. | Airbag flow diversion walls for hot deployment performance levelling |
US5683102A (en) * | 1996-04-08 | 1997-11-04 | Morton International, Inc. | Ported passenger airbag module can |
DE69715499T2 (en) * | 1996-04-08 | 2003-06-05 | Autoliv Asp Inc | Breathable housing for a passenger gas cushion module |
WO2004018267A1 (en) * | 2002-08-20 | 2004-03-04 | Takata-Petri Ag | Airbag module having a gas generator |
DE20303115U1 (en) * | 2003-02-20 | 2003-11-20 | Takata Petri Gmbh Ulm | Occupant protection device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110109069A1 (en) * | 2009-11-10 | 2011-05-12 | Gm Global Technology Operations, Inc. | Airbag module for a vehicle |
DE102010026745A1 (en) * | 2010-07-09 | 2012-01-12 | Autoliv Development Ab | Gas generator unit for use in air bag of vehicle restraint system, has deflection element whose layer covers aperture and is movable relative to another layer by gas pressure produced by gas generator to release aperture |
DE102010026745B4 (en) | 2010-07-09 | 2020-07-09 | Autoliv Development Ab | Gas generator unit |
US11279317B2 (en) * | 2019-12-09 | 2022-03-22 | Autoliv Asp, Inc. | Gas generator of an inflatable airbag, the gas generator including a diffuser for diffusing inflation gases |
Also Published As
Publication number | Publication date |
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DE102004056159B4 (en) | 2013-11-14 |
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R082 | Change of representative |
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Owner name: TAKATA AKTIENGESELLSCHAFT, DE Free format text: FORMER OWNER: TAKATA-PETRI AG, 63743 ASCHAFFENBURG, DE Effective date: 20120904 Owner name: JOYSON SAFETY SYSTEMS GERMANY GMBH, DE Free format text: FORMER OWNER: TAKATA-PETRI AG, 63743 ASCHAFFENBURG, DE Effective date: 20120904 |
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R081 | Change of applicant/patentee |
Owner name: JOYSON SAFETY SYSTEMS GERMANY GMBH, DE Free format text: FORMER OWNER: TAKATA AKTIENGESELLSCHAFT, 63743 ASCHAFFENBURG, DE |
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Representative=s name: MAIKOWSKI & NINNEMANN PATENTANWAELTE PARTNERSC, DE |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |