DE102004056159B4 - airbag module - Google Patents
airbag module Download PDFInfo
- Publication number
- DE102004056159B4 DE102004056159B4 DE102004056159A DE102004056159A DE102004056159B4 DE 102004056159 B4 DE102004056159 B4 DE 102004056159B4 DE 102004056159 A DE102004056159 A DE 102004056159A DE 102004056159 A DE102004056159 A DE 102004056159A DE 102004056159 B4 DE102004056159 B4 DE 102004056159B4
- Authority
- DE
- Germany
- Prior art keywords
- airbag module
- opening
- bagring
- module according
- gas
- 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
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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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Airbagmodul mit einem Gasgenerator (1), einem Airbag (4), einem Diffusor (3) und einem Bagring (9, 12, 15, 23, 25, 27), wobei der Gasgenerator (1) zur einen Hälfte vom Bagring (9, 12, 15, 23, 25, 27) und zur anderen Hälfte vom Diffusor (3) umgeben ist, wobei der Bagring (9, 12, 15, 23, 25, 27) in einem Gehäuse (8) befestigbar ist und wobei der Bagring (9, 12, 15, 23, 25, 27) mindestens eine Öffnung (10, 13, 16, 24, 26, 28) aufweist, die mindestens einer Abströmöffnung (5) des Diffusors (3) gegenüberliegt, so dass eine aus Gasgenerator (1), Diffusor (3) und Bagring (9, 12, 15, 23, 25, 27) bestehende Baugruppe zumindest annähernd schubneutral ist und die nach dem Einbau der Baugruppe in das Gehäuse (8) verschlossen ist.Airbag module comprising a gas generator (1), an airbag (4), a diffuser (3) and a bag ring (9, 12, 15, 23, 25, 27), the gas generator (1) being half of the bag ring (9, 12, 15, 23, 25, 27) and the other half of the diffuser (3) is surrounded, wherein the bag ring (9, 12, 15, 23, 25, 27) in a housing (8) can be fastened and wherein the bag ring (9, 12, 15, 23, 25, 27) at least one opening (10, 13, 16, 24, 26, 28) which faces at least one outflow opening (5) of the diffuser (3), so that a gas generator (1), diffuser (3) and bag ring (9, 12, 15, 23, 25, 27) existing assembly is at least approximately thrust neutral and is sealed after installation of the assembly in the housing (8).
Description
Die Erfindung betrifft ein Airbagmodul mit einem Gasgenerator, einem Airbag, einem Diffusor und einem Bagring.The invention relates to an airbag module with a gas generator, an airbag, a diffuser and a bag ring.
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 ein Rückstoßimpuls auf das Modul.The gas generator of an airbag module triggers at a defined temperature and develops within a very short period of time a defined gas mass. To direct this gas mass targeted into the gas bag, diffusers and bag rings are used, which surround the gas generator. By directing the gas flow in one direction, a recoil pulse is created on the module.
Aus dem
Weiterhin ist aus dem Gebrauchsmuster
Aus der
Weiterhin ist aus der
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.The invention has for its object to reduce accidents by an airbag module as a complex assembly, especially in external heating of the airbag module, z. B. in a fire.
Erfindungsgemäß wird das gemäß den Merkmalen des Anspruchs 1 erreicht.According to the invention that is achieved according to the features of
Die erfindungsgemäße Anordnung besteht aus einem Airbagmodul mit einem Gasgenerator, einem Airbag, einem Diffusor und einem Bagring, wobei der Gasgenerator zur einen Hälfte vom Bagring und zur anderen Hälfte vom Diffusor umgeben ist, wobei der Bagring in einem Gehäuse befestigbar ist und wobei der Bagring mindestens eine Öffnung aufweist, die mindestens einer Abströmöffnung des Diffusors gegenüberliegt, so dass eine aus Gasgenerator, Diffusor und Bagring bestehende Baugruppe zumindest annähernd schubneutral ist und die nach dem Einbau der Baugruppe in das Gehäuse verschlossen ist.The arrangement according to the invention consists of an airbag module with a gas generator, an airbag, a diffuser and a bag ring, wherein the gas generator is surrounded on one half by the bag ring and the other half by the diffuser, wherein the bag ring can be fastened in a housing and wherein the bag ring at least has an opening which faces at least one outflow opening of the diffuser, so that an assembly consisting of gas generator, diffuser and bag ring is at least approximately push-neutral and which is closed after installation of the assembly in the housing.
Die Öffnung im Bagring ist vorzugsweise als dynamische Öffnung ausgebildet, die mindestens einer Abströmöffnung des Diffusors gegenüberliegt.The opening in the bag ring is preferably designed as a dynamic opening, which faces at least one outflow opening of the diffuser.
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 of a dynamic opening, this has at least one closure which, in the absence of the housing, is to be opened by the pressure of the gas flowing out of the gas generator. In particular, the opening is at least partially closed by at least one flap. As a flap can be provided partially separated from the bagring section. In this embodiment, therefore, the flap is part of the Bagrings. It remains connected to the bagring on one side and can fold away from the bagring when the gas generator is triggered around this remaining connection point.
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, an opening extending over the entire bag ring is provided. 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 bag ring has in its middle region a plurality of small openings which can each be 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 of a dynamic opening, it has a frangible seal. Thus, the opening may be covered by a foil. This film would tear in case of unforeseen triggering of the gas generator, in particular due to the action of heat by the pressure of the gas flowing out of the gas generator gas.
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.But it may also be provided by melting a heat closure, z. B. in the form of an aluminum foil. This film can be designed so that it melts or burns before the triggering of the gas generator.
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.If at least one static opening is provided in the bag ring, this is located opposite at least one outlet opening of the diffuser. In this embodiment, in the absence of a housing in which the bag ring is mounted, the opening is always open unlike the dynamic opening.
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. In all embodiments, the opening or the closure is suitably held by the inner wall of the housing in the closed position. By exploiting the housing wall as a closure means by the bag ring rests against the housing wall, additional closure means are unnecessary.
Die Erfindung soll in Ausführungsbeispielen anhand von Zeichnungen erläutert werden. Es zeigen:The invention will be explained in exemplary embodiments with reference to drawings. Show it:
Die
In den
Die
Beim Ausführungsbeispiel der
Die
Die
Wenn in diesem Fall der Gasgenerator gezündet wird, können die aus den Gasaustrittsöffnungen
In der
In der
Die
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 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 DE102004056159A1 (en) | 2006-06-01 |
DE102004056159B4 true 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)
Country | Link |
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DE (1) | DE102004056159B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009052565A1 (en) * | 2009-11-10 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Airbag module for a vehicle |
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 |
Citations (11)
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 |
DE9408908U1 (en) * | 1994-05-31 | 1994-11-17 | Trw Repa Gmbh | Airbag protection device |
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 |
DE19834690A1 (en) * | 1998-07-31 | 2000-02-03 | Takata Europ Gmbh | Airbag device with gas generator |
DE10318133A1 (en) * | 2002-04-22 | 2003-10-30 | Trw Repa Gmbh | Gas bag module has rigid housing in which gas generator is arranged, and in which at least two gas outflow channels are formed with adjacent mouths, separated by wall and directed to gas generator |
DE20303115U1 (en) * | 2003-02-20 | 2003-11-20 | TAKATA-PETRI (Ulm) GmbH, 89081 Ulm | Occupant protection device |
WO2004018267A1 (en) * | 2002-08-20 | 2004-03-04 | Takata-Petri Ag | Airbag module having a gas generator |
DE10358057A1 (en) * | 2003-01-13 | 2004-07-22 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Airbag module, comprising diffusor with radial and diagonally positioned openings for safe transport |
-
2004
- 2004-11-18 DE DE102004056159A patent/DE102004056159B4/en not_active Expired - Fee Related
Patent Citations (12)
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 |
DE9408908U1 (en) * | 1994-05-31 | 1994-11-17 | Trw Repa Gmbh | Airbag protection device |
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 |
DE19834690A1 (en) * | 1998-07-31 | 2000-02-03 | Takata Europ Gmbh | Airbag device with gas generator |
DE10318133A1 (en) * | 2002-04-22 | 2003-10-30 | Trw Repa Gmbh | Gas bag module has rigid housing in which gas generator is arranged, and in which at least two gas outflow channels are formed with adjacent mouths, separated by wall and directed to gas generator |
WO2004018267A1 (en) * | 2002-08-20 | 2004-03-04 | Takata-Petri Ag | Airbag module having a gas generator |
DE10358057A1 (en) * | 2003-01-13 | 2004-07-22 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Airbag module, comprising diffusor with radial and diagonally positioned openings for safe transport |
DE20303115U1 (en) * | 2003-02-20 | 2003-11-20 | TAKATA-PETRI (Ulm) GmbH, 89081 Ulm | Occupant protection device |
Also Published As
Publication number | Publication date |
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DE102004056159A1 (en) | 2006-06-01 |
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OP8 | Request for examination as to paragraph 44 patent law | ||
R082 | Change of representative |
Representative=s name: MAIKOWSKI & NINNEMANN PATENTANWAELTE, DE |
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R081 | Change of applicant/patentee |
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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Representative=s name: MAIKOWSKI & NINNEMANN PATENTANWAELTE PARTNERSC, DE Effective date: 20120904 Representative=s name: MAIKOWSKI & NINNEMANN PATENTANWAELTE, DE Effective date: 20120904 |
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R020 | Patent grant now final |
Effective date: 20140215 |
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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 |