DE102004055757A1 - Airbag unit for motor vehicle has bar-form element extending through outlet opening in wall of gas generator and on inside of outer wall supports deformation section which during gas generator operation deforms and closes off opening - Google Patents
Airbag unit for motor vehicle has bar-form element extending through outlet opening in wall of gas generator and on inside of outer wall supports deformation section which during gas generator operation deforms and closes off opening Download PDFInfo
- Publication number
- DE102004055757A1 DE102004055757A1 DE200410055757 DE102004055757A DE102004055757A1 DE 102004055757 A1 DE102004055757 A1 DE 102004055757A1 DE 200410055757 DE200410055757 DE 200410055757 DE 102004055757 A DE102004055757 A DE 102004055757A DE 102004055757 A1 DE102004055757 A1 DE 102004055757A1
- Authority
- DE
- Germany
- Prior art keywords
- gas generator
- wall
- airbag unit
- housing
- unit 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.)
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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
- B60R21/20—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 eine Gassackeinheit nach dem Oberbegriff des Anspruchs 1.The The invention relates to a gas bag unit according to the preamble of Claim 1.
Ein Problem, das sich bei der Konzeption einer Gassackeinheit fast immer stellt, ist, dass der zur Verfügung stehende Einbauraum im Kraftfahrzeug stark begrenzt ist. Beispielsweise bei Gassackeinheiten für einen Beifahrer-Gassack wird das Problem dadurch verschärft, dass in dem Bereich, in dem die Gassackeinheit angeordnet sein muss, auch zunehmend komfortrelevante Einbauten wie beispielsweise Ablagen, CD-Wechsler usw. angeordnet werden sollen.One Problem that almost always arises in the design of a gas bag unit is that the available standing installation space in the vehicle is severely limited. For example for gas bag units for a passenger gas bag this aggravates the problem that in the area in which the gas bag unit must be arranged, also increasingly comfort-relevant fixtures such as shelves, CD changer, etc. should be arranged.
Gasgeneratoren, auch solche, die für die Gassack-Einheit eines Beifahrer-Gassacks vorgesehen sind, weisen häufig eine zylindrische Außenwand auf, in deren Mantelfläche die Ausströmöffnungen schubneutral angeordnet sind. Das heißt, dass sich die Ausströmöffnungen rings um die Mantelfläche befinden. Dies wiederum heißt, dass sich bei den meisten Konzepten der Gasgenerator vollständig im Inneren des Gehäuses befinden muss. Selbst wenn der Gasgenerator in einem Randbereich des Gehäuses angeordnet ist, muss ein Ringspalt freigehalten werden, über den Gas aus den der Gehäusewandung zugewandten Ausströmöffnungen umgeleitet wird, um in den Gassack zu gelangen. Dies vergrößert zum einen die Gehäusegröße und ist zum anderen relativ aufwendig, da die Gehäusewandung im Bereich des Ringspaltes relativ stark belastet wird und entsprechend widerstandsfähig ausgestaltet sein muss.Gas generators, also those for the gas bag unit of a passenger gas bag are provided, often have a cylindrical outer wall on, in the lateral surface the outflow openings are arranged thrust neutral. That means that the outflow openings around the lateral surface are located. This in turn means that in most concepts the gas generator is completely inside of the housing must be located. Even if the gas generator in a peripheral area of the housing is arranged, an annular gap must be kept free, over the Gas from the housing wall facing outflow openings is diverted to get into the gas bag. This increases to one is the case size and is on the other hand relatively expensive, since the housing wall in the region of the annular gap is relatively heavily loaded and designed to be resistant got to.
Trotz dieser Nachteile ist der Einsatz von schubneutralen Gasgeneratoren vorteilhaft, da diese gegenüber nicht schubneutralen Gasgeneratoren we sentlich geringere Sicherheitsanforderungen bei Lagerung und Handhabung erfüllen müssen.In spite of These disadvantages are the use of thrust neutral gas generators advantageous because these are opposite Non-thrust gas generators we considerably lower security requirements during storage and handling have to.
Die
Hiervon ausgehend ist es Aufgabe der Erfindung, eine gattungsgemäße Gassackeinheit dahingehend weiterzubilden, dass geringere Anforderungen an die Maßhaltigkeit und die Montagegenauigkeit gestellt werden müssen.Of these, It is an object of the invention, a generic airbag unit to further develop that lower demands on the dimensional stability and the mounting accuracy must be made.
Diese Aufgabe wird durch eine Gassackeinheit mit den Merkmalen des Anspruchs 1 gelöst.These The object is achieved by an airbag unit having the features of the claim 1 solved.
Bei der erfindungsgemäßen Gassackeinheit erstreckt sich durch wenigstens eine Ausströmöffnung ein stabförmiges Element. Dieser dient jedoch nicht unmittelbar der Befestigung und dichtet die Ausströmöffnung im Ruhezustand auch nicht gasdicht ab. Hierdurch sind die Anforderungen an die Maßhaltigkeit und die genaue Positionierung gering. Um dennoch die Forderung zu erfüllen, dass bei Betätigung des Gasgenerators kein oder nur eine geringe Menge Gas aus der betreffenden Ausströmöffnung austritt, trägt das stabförmige Element an seinem innen liegenden Ende ein Verformungselement, das so ausgestaltet ist, dass es bei Betätigung des Gasgeneratos aufgrund des sich ausbildenden Innendrucks an die Innenseite der Außenwand gedrückt wird und somit die Ausströmöffnung hinreichend abdichtet. Der Vorgang des Abdichtens, der bei der Montage nur mit großem Aufwand erreichbar ist, wird somit vom Gasgenerator beim Zünden selbst erledigt.at extends the gas bag unit according to the invention itself by at least one outflow opening a rod-shaped element. However, this does not serve directly the attachment and seals the outflow opening in Hibernation also not gas-tight. These are the requirements to the dimensional stability and the exact positioning is low. Nevertheless, the demand too fulfill, that when pressed the gas generator no or only a small amount of gas from the relevant Outflow opening exits, carries the rod-shaped element at its inner end a deformation element, which designed so is that on actuation of the gas generator due to the forming internal pressure to the Inside of the outer wall depressed is and thus the outflow sufficient seals. The process of sealing, which when using only with great Effort is achievable, is thus from the gas generator during ignition itself done.
Bevorzugte Ausführungsformen ergeben sich aus den Unteransprüchen sowie aus den nun mit Bezug auf die Figuren näher dargestellten Ausführungsbeispielen. Hierbei zeigen:preferred embodiments emerge from the dependent claims and from the now with reference to the figures illustrated embodiments. Hereby show:
Vom
Aufnahmeabschnitt
Im
hier gezeigten Ausführungsbeispiel
ist der Verformungsabschnitt
Die
Die
Die
Die
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410055757 DE102004055757B4 (en) | 2004-11-18 | 2004-11-18 | Airbag unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410055757 DE102004055757B4 (en) | 2004-11-18 | 2004-11-18 | Airbag unit |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004055757A1 true DE102004055757A1 (en) | 2006-05-24 |
DE102004055757B4 DE102004055757B4 (en) | 2007-01-04 |
Family
ID=36313730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410055757 Expired - Fee Related DE102004055757B4 (en) | 2004-11-18 | 2004-11-18 | Airbag unit |
Country Status (1)
Country | Link |
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DE (1) | DE102004055757B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2000370A2 (en) * | 2007-06-06 | 2008-12-10 | Autoliv Development Ab | Side airbag unit with inflator-equipped housing |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10139626A1 (en) * | 2001-08-14 | 2003-03-13 | Takata Petri Ag | An air bag assembly |
DE20311254U1 (en) * | 2003-07-22 | 2003-12-04 | Trw Airbag Systems Gmbh | Method for fitting gas generator to airbag mounting in which some of the gas venting holes are used to secure the gas generator using conventional fasteners |
DE20313108U1 (en) * | 2002-08-20 | 2003-12-04 | Takata-Petri Ag | Airbag module with gas generator |
-
2004
- 2004-11-18 DE DE200410055757 patent/DE102004055757B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10139626A1 (en) * | 2001-08-14 | 2003-03-13 | Takata Petri Ag | An air bag assembly |
DE20313108U1 (en) * | 2002-08-20 | 2003-12-04 | Takata-Petri Ag | Airbag module with gas generator |
DE20311254U1 (en) * | 2003-07-22 | 2003-12-04 | Trw Airbag Systems Gmbh | Method for fitting gas generator to airbag mounting in which some of the gas venting holes are used to secure the gas generator using conventional fasteners |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2000370A2 (en) * | 2007-06-06 | 2008-12-10 | Autoliv Development Ab | Side airbag unit with inflator-equipped housing |
EP2000370A3 (en) * | 2007-06-06 | 2012-03-28 | Autoliv Development AB | Side airbag unit with inflator-equipped housing |
Also Published As
Publication number | Publication date |
---|---|
DE102004055757B4 (en) | 2007-01-04 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee | ||
R082 | Change of representative |
Representative=s name: SCHOEN, THILO, DIPL.-PHYS., DE |