DE102008048340B3 - Two-layer airbag blowing up device for security system of motor vehicle, has inflator producing air flow that is directed from outer side of airbag, and opening combustible in layer of airbag - Google Patents
Two-layer airbag blowing up device for security system of motor vehicle, has inflator producing air flow that is directed from outer side of airbag, and opening combustible in layer of airbag Download PDFInfo
- Publication number
- DE102008048340B3 DE102008048340B3 DE200810048340 DE102008048340A DE102008048340B3 DE 102008048340 B3 DE102008048340 B3 DE 102008048340B3 DE 200810048340 DE200810048340 DE 200810048340 DE 102008048340 A DE102008048340 A DE 102008048340A DE 102008048340 B3 DE102008048340 B3 DE 102008048340B3
- Authority
- DE
- Germany
- Prior art keywords
- airbag
- gas
- belt
- layer
- gas generator
- 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
- B60R21/18—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags the inflatable member formed as a belt or harness or combined with a belt or harness arrangement
-
- 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
-
- 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
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Aufblasen eines wenigstens zweilagigen, zu einem aufblasbaren Gurt gefalteten Gassackes für ein Sicherheitssystem eines Kraftfahrzeuges mit einem Gasgenerator.The The invention relates to a device for inflating an at least two-layer airbag folded into an inflatable belt for a safety system a motor vehicle with a gas generator.
Gassäcke sind z. B. im Lenkrad, in der Armaturentafel vor dem Beifahrer, seitlich an der B-Säule, im Dachrahmen, unterhalb des Lenkrades oder im Sitz angeordnet und werden im Unfall aufgeblasen. Die Gassäcke haben dabei die Aufgabe, zu verhindern, dass der Insasse während des Unfalles auf die Fahrzeugstruktur oder harte Teile des Fahrzeuges, wie z. B. das Lenkrad oder die Fahrzeugscheibe, auftrifft und sich dabei schwere Verletzungen zuzieht. Ferner kann durch die aufgeblasenen Gassäcke der Bewegungsablauf des Insassen während der Vorwärtsverlagerung verändert werden, so dass z. B. das als Submarining bekannte Durchtauchen durch den Sicherheitsgurt vermieden wird. Ferner werden solche aufblasbaren Gassäcke auch als aufblasbare Sicherheitsgurte verwendet, die dann zu einem Gurt gefaltet sind und auf einem Gurtaufroller aufgewickelt werden.Airbags are z. B. in the steering wheel, in the dashboard before the passenger side at the B-pillar, in the Roof frame, located below the steering wheel or in the seat and are inflated in the accident. The gas bags have the task to prevent the passenger during the accident on the vehicle structure or hard parts of the vehicle, such as. B. the steering wheel or the Vehicle window, hits and thereby incurs serious injury. Further can by the inflated airbags the movement of the Inmates during the forward displacement changed be such that z. B. known as submarining diving is avoided by the seat belt. Furthermore, such inflatable airbags also used as inflatable seat belts, which then become one Belt are folded and wound up on a belt retractor.
Zum Aufblasen der Gassäcke werden üblicherweise Gasgeneratoren verwendet, die über ein Anschlussstück an den Gassack angeschlossen sind. Der von den Gasgeneratoren erzeugte Gasstrom wird über einen Gaskanal in den Gassack geleitet, wobei zusätzliche Gaslanzen vorgesehen sein können, die den Gasstrom im Inneren des Gassackes verteilen.To the Inflating the airbags become common Gas generators used over a connector connected to the gas bag. The generated by the gas generators Gas flow is over a gas duct passed into the gas bag, with additional gas Gas lances can be provided which distribute the gas flow inside the airbag.
Aus
der
Bei aufblasbaren Gurten besteht grundsätzlich das Problem, an welcher Stelle der Gasgenerator an den aufblasbaren Gurt angeschlossen wird, da der Gurt einer sich ständig wiederholenden Auszugs- und Einzugsbewegung unterliegt. Aus diesem Grunde werden aufblasbare Gurte entweder vom Endbeschlag her befüllt, oder es wird eine sehr aufwendige Befüllung über die Gurtzunge vorgenommen.at inflatable belts is basically the problem at which Place the gas generator is connected to the inflatable belt, since the belt is a constantly subject to repeated pull-out and retraction movement. For this Basically, inflatable straps are either filled from the end fitting, or It will be a very elaborate filling over the Tongue tongue made.
Aufgabe der Erfindung ist es, eine konstruktiv einfache und kostengünstige Vorrichtung zum Aufblasen eines zweilagigen, zu einem aufblasbaren Gurt gefalteten Gassackes zu schaffen.task The invention is a structurally simple and inexpensive device for inflating a two-ply, folded into an inflatable belt To create airbag.
Zur Lösung der gestellten Aufgabe schlägt die Erfindung vor, dass der von dem Gasgenerator erzeugte Gasstrom von außen auf den Gassack gerichtet ist und durch den Gasstrom eine Öffnung in wenigstens eine der Lagen des Gassackes brennbar ist. Erstaunlicherweise hat sich heraus gestellt, dass der Gassack sich auch entfaltet, wenn der Gasstrom direkt auf den Gassack von außen gerichtet wird, wobei keinerlei Anschlussöffnungen oder Anschlussstücke erforderlich sind. Der Gasstrom wird dann direkt durch die dem Gasstrom ausgesetzte Lage des Gassackes eingeleitet, wobei die Einleitung des Gasstromes dadurch begünstigt werden kann, indem durch den Gasstrom eine Öffnung in wenigstens eine der Lagen des Gassackes brennbar ist.to solution the set task beats the Invention that the gas flow generated by the gas generator of Outside directed to the gas bag and through the gas flow an opening in at least one of the layers of the gas bag is combustible. Amazingly It turns out that the gas bag also unfolds when the gas flow is directed directly to the gas bag from the outside, with no connection openings or fittings required are. The gas flow is then directly through the gas flow Exposed position of the airbag initiated, the introduction favored by the gas flow can be made by the gas flow through an opening in at least one of the layers the gas bag is combustible.
Weiterhin wird vorgeschlagen, dass die Richtung des Gasstromes und die vorgesehene Entfaltungsrichtung des Gassackes einen Winkel kleiner als 90 Grad einschließen. Damit wird durch die Ausrichtung des Gasstromes bereits die Entfaltungsrichtung mit vorgegeben und das Aufblasen des Gassackes beschleunigt. Ferner wird dadurch eine Welle in der Lage erzeugt, die dem Gasstrom ausgesetzt ist, so dass diese Lage einer zusätzlichen mechanischen Beanspruchung ausgesetzt ist und das Einbrennen der Öffnung zusätzlich beschleunigt wird.Farther It is suggested that the direction of the gas flow and the intended Deployment direction of the airbag at an angle less than 90 degrees lock in. Thus, by the orientation of the gas flow already the deployment direction specified and accelerated the inflation of the airbag. Further This creates a wave capable of being exposed to the gas flow is, so this location of an additional mechanical stress is exposed and the burning of the opening is additionally accelerated.
Damit der Gasstrom nicht benachbarte Teile in dem Kraftfahrzeug beschädigen kann und zusätzlich optimal zum Aufblasen des Gassackes genutzt werden kann, wird vorgeschlagen, dass der Bereich des Gassackes, auf den der Gasstrom gerichtet ist, der Gasstrom und wenigstens der Bereich des Gasgenerators, an dem der Gasstrom aus diesem austritt, durch ein Gehäuse gekapselt sind.In order to the gas stream may damage non-adjacent parts in the motor vehicle and additionally can be used optimally for inflating the airbag, it is proposed that the area of the gas bag, on which the gas stream is directed, the Gas stream and at least the area of the gas generator, where the Gas flow from this outlet, encapsulated by a housing.
Es wird weiter vorgeschlagen, dass der Gasgenerator berührungslos gegenüber dem Gassack angeordnet ist. Damit wird der Gassack lediglich durch den auf ihn auftreffenden Gasstrom belastet und der austretende Gasstrom kann sich vor dem Auftreffen auf die Lage des Gassackes entwickeln, so dass er die nötige thermische und kinetische Energie besitzt, um die Öffnung einzubrennen. Unter dem Begriff „berührungslos” soll hier verstanden werden, dass die Gasaustrittsfläche des Gasgenerators keinen Kontakt mit dem Gassack besitzt, wobei das Gehäuse des Gasgenerators durchaus mit dem Gassack in Kontakt stehen kann.It it is further proposed that the gas generator contactless across from the gas bag is arranged. Thus, the gas bag is only by loaded the gas stream impinging on him and the exiting Gas flow can be before hitting the location of the gas bag develop, so he needed the necessary has thermal and kinetic energy to burn in the opening. The term "non-contact" is intended here be understood that the gas outlet surface of the gas generator no Has contact with the gas bag, wherein the housing of the gas generator quite can be in contact with the gas bag.
Aufgrund der erfindungsgemäßen Vorrichtung kann der Gurt nun an einer beliebigen Stelle befüllt werden, so zum Beispiel auch an einem Ausgang aus einem Gurtaufroller.by virtue of the device according to the invention The belt can now be filled at any point, such as also at an exit from a belt retractor.
Ferner wird vorgeschlagen, dass die Vorrichtung eine Führung für den Gurt aufweist, so dass die Anordnung der Einzelteile zueinander, und insbesondere der Abstand des Gurtes zu dem Gasgenerator, auch bei der Gurteinzugs- und Gurtauszugsbewegung unverändert bleibt.It is also proposed that the device has a guide for the belt, so that the arrangement of the individual parts to each other, and in particular the distance of the belt to the gas generator, even with the Gurteinzugs- and Gurtauszugsbewe remains unchanged.
Weiterhin wird vorgeschlagen, dass der Gurt zum Zeitpunkt der Zündung des Gasgenerators in Gurtauszugsrichtung blockiert ist. Damit wird verhindert, dass der Gurt sich durch den auftreffenden Gasstrom in Gurtauszugsrichtung bewegt und sich damit die Stelle auf dem Gurt an der der Gasstrom auftrifft bewegt.Farther It is suggested that the belt at the time of ignition of the belt Gas generator is blocked in Gurtauszugsrichtung. This prevents that the belt is characterized by the impinging gas flow in Gurtauszugsrichtung moves and moves the spot on the strap to the gas stream Impact moves.
Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispieles näher erläutert, in den Figuren ist im Einzelnen zu erkennen:following the invention will be explained in more detail with reference to a preferred embodiment, in The figures show in detail:
In
den
Durch
die Anordnung der Vorrichtung an einem Gurtaufroller
In
In
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Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810048340 DE102008048340B3 (en) | 2008-09-22 | 2008-09-22 | Two-layer airbag blowing up device for security system of motor vehicle, has inflator producing air flow that is directed from outer side of airbag, and opening combustible in layer of airbag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810048340 DE102008048340B3 (en) | 2008-09-22 | 2008-09-22 | Two-layer airbag blowing up device for security system of motor vehicle, has inflator producing air flow that is directed from outer side of airbag, and opening combustible in layer of airbag |
Publications (1)
Publication Number | Publication Date |
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DE102008048340B3 true DE102008048340B3 (en) | 2010-01-14 |
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Family Applications (1)
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DE200810048340 Expired - Fee Related DE102008048340B3 (en) | 2008-09-22 | 2008-09-22 | Two-layer airbag blowing up device for security system of motor vehicle, has inflator producing air flow that is directed from outer side of airbag, and opening combustible in layer of airbag |
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DE (1) | DE102008048340B3 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009057670A1 (en) * | 2009-12-09 | 2011-06-16 | Daimler Ag | Seat belt for vehicle, comprises partially tube-like belt strap which is filled with gas by using gas generator, where gas generator fills belt strap at vehicle-fixed filling station |
DE102011009560A1 (en) | 2010-02-19 | 2011-08-25 | Autoliv Development Ab | Device for inflating an at least two-layered gas bag for a safety system of a motor vehicle |
DE102010009945A1 (en) | 2010-03-02 | 2011-09-08 | Autoliv Development Ab | Seat belt unit has multi-layer inflatable seat belt, and gas producer, which is arranged on one of layers of inflatable seat belt, and produces gas flow during activation |
DE102010012832A1 (en) * | 2010-03-25 | 2011-09-29 | Benteler Automobiltechnik Gmbh | Automotive column |
WO2011144305A1 (en) | 2010-05-20 | 2011-11-24 | Daimler Ag | Device for inflating an at least two-ply airbag folded to form an inflatable belt and used for a safety system of a motor vehicle |
DE102011010168B3 (en) * | 2011-02-02 | 2011-12-15 | Autoliv Development Ab | Inflator for inflatable multilayer safety belt of motor car, has deflector that projects in transport position into withdrawing gas stream, and pivoted from active position to position in which withdrawing gas stream is released |
DE102010044566A1 (en) | 2010-09-07 | 2012-03-08 | Autoliv Development Ab | Seat belt device with a device for inflating an at least two-layer inflatable seat belt for a motor vehicle |
DE102010044565A1 (en) | 2010-09-07 | 2012-03-08 | Autoliv Development Ab | Seat belt device with a device for inflating an at least two-layer inflatable seat belt for a motor vehicle |
DE102010044568A1 (en) | 2010-09-07 | 2012-03-08 | Autoliv Development Ab | Safety belt device for motor vehicle, has inflating device for inflating two-part safety belt, where safety belt, in area of external gas flow directed towards safety belt, is guided into widening belt guiding channel |
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DE19536625A1 (en) * | 1995-09-22 | 1997-03-27 | Mihm & Partner Gmbh Dr | Method and equipment for folding airbags |
DE69305793T2 (en) * | 1992-06-12 | 1997-05-28 | Livbag Snc | Pyrotechnic, a non-toxic hot gas generating composition and its use in a protective device for occupants of a motor vehicle |
DE19858674A1 (en) * | 1997-12-23 | 1999-09-23 | Trw Inc | Catalytcally plated air bag |
DE10114208A1 (en) * | 2001-03-23 | 2002-05-08 | Trw Automotive Safety Sys Gmbh | Gasbag module assembly process involves stowing at least one component in cover, creating negative pressure in cover and closing it, making it gastight |
EP1347894B1 (en) * | 2000-12-27 | 2004-09-29 | Toyota Jidosha Kabushiki Kaisha | Air bag apparatus |
DE102004056128A1 (en) * | 2004-11-15 | 2007-01-04 | Takata-Petri Ag | Modular sub-assembly for airbag unit in motor vehicle has retaining element extending along one edge of airbag packet and over it grip fastening means provided on support for fastening of airbag packet on support |
DE202007003906U1 (en) * | 2007-03-12 | 2007-07-12 | Takata-Petri Ag | Airbag arrangements for a vehicle occupant restraint system |
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DE69305793T2 (en) * | 1992-06-12 | 1997-05-28 | Livbag Snc | Pyrotechnic, a non-toxic hot gas generating composition and its use in a protective device for occupants of a motor vehicle |
DE19536625A1 (en) * | 1995-09-22 | 1997-03-27 | Mihm & Partner Gmbh Dr | Method and equipment for folding airbags |
DE19858674A1 (en) * | 1997-12-23 | 1999-09-23 | Trw Inc | Catalytcally plated air bag |
EP1347894B1 (en) * | 2000-12-27 | 2004-09-29 | Toyota Jidosha Kabushiki Kaisha | Air bag apparatus |
DE10114208A1 (en) * | 2001-03-23 | 2002-05-08 | Trw Automotive Safety Sys Gmbh | Gasbag module assembly process involves stowing at least one component in cover, creating negative pressure in cover and closing it, making it gastight |
DE102004056128A1 (en) * | 2004-11-15 | 2007-01-04 | Takata-Petri Ag | Modular sub-assembly for airbag unit in motor vehicle has retaining element extending along one edge of airbag packet and over it grip fastening means provided on support for fastening of airbag packet on support |
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Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009057670A1 (en) * | 2009-12-09 | 2011-06-16 | Daimler Ag | Seat belt for vehicle, comprises partially tube-like belt strap which is filled with gas by using gas generator, where gas generator fills belt strap at vehicle-fixed filling station |
DE102011009560A1 (en) | 2010-02-19 | 2011-08-25 | Autoliv Development Ab | Device for inflating an at least two-layered gas bag for a safety system of a motor vehicle |
WO2011101092A1 (en) | 2010-02-19 | 2011-08-25 | Autoliv Development Ab | Device for inflating an at least two-layer airbag for a safety system of a motor vehicle |
DE102010009945A1 (en) | 2010-03-02 | 2011-09-08 | Autoliv Development Ab | Seat belt unit has multi-layer inflatable seat belt, and gas producer, which is arranged on one of layers of inflatable seat belt, and produces gas flow during activation |
DE102010009945B4 (en) * | 2010-03-02 | 2015-11-12 | Autoliv Development Ab | Method for controlling seat belt device with a multi-layer inflatable seat belt |
DE102010012832A1 (en) * | 2010-03-25 | 2011-09-29 | Benteler Automobiltechnik Gmbh | Automotive column |
DE102010012832B4 (en) * | 2010-03-25 | 2016-01-21 | Benteler Automobiltechnik Gmbh | Automotive column |
CN102905943A (en) * | 2010-05-20 | 2013-01-30 | 戴姆勒股份公司 | Device for inflating an at least two-ply airbag folded to form an inflatable belt and used for a safety system of a motor vehicle |
WO2011144305A1 (en) | 2010-05-20 | 2011-11-24 | Daimler Ag | Device for inflating an at least two-ply airbag folded to form an inflatable belt and used for a safety system of a motor vehicle |
DE102010021007A1 (en) | 2010-05-20 | 2011-11-24 | Daimler Ag | Device for inflating an at least two-layered, folded to an inflatable belt airbag for a safety system of a motor vehicle |
US8844967B2 (en) | 2010-05-20 | 2014-09-30 | Daimler Ag | Device for inflating an at least two-ply airbag folded to form an inflatable belt and used for a safety system of a motor vehicle |
DE102010044566A1 (en) | 2010-09-07 | 2012-03-08 | Autoliv Development Ab | Seat belt device with a device for inflating an at least two-layer inflatable seat belt for a motor vehicle |
WO2012031668A1 (en) | 2010-09-07 | 2012-03-15 | Autoliv Development Ab | Safety belt apparatus having a device for inflating an at least two-layer inflatable safety belt for a motor vehicle |
DE102010044568B4 (en) * | 2010-09-07 | 2012-06-14 | Autoliv Development Ab | Seat belt device with a device for inflating an at least two-layer inflatable seat belt for a motor vehicle |
WO2012031669A1 (en) | 2010-09-07 | 2012-03-15 | Autoliv Development Ab | Safety belt apparatus having a device for inflating an at least two-layer inflatable safety belt for a motor vehicle |
DE102010044565B4 (en) * | 2010-09-07 | 2014-06-26 | Autoliv Development Ab | Seat belt device with a device for inflating an at least two-layer inflatable safety belt for a motor vehicle |
DE102010044568A1 (en) | 2010-09-07 | 2012-03-08 | Autoliv Development Ab | Safety belt device for motor vehicle, has inflating device for inflating two-part safety belt, where safety belt, in area of external gas flow directed towards safety belt, is guided into widening belt guiding channel |
DE102010044565A1 (en) | 2010-09-07 | 2012-03-08 | Autoliv Development Ab | Seat belt device with a device for inflating an at least two-layer inflatable seat belt for a motor vehicle |
DE102011010168B3 (en) * | 2011-02-02 | 2011-12-15 | Autoliv Development Ab | Inflator for inflatable multilayer safety belt of motor car, has deflector that projects in transport position into withdrawing gas stream, and pivoted from active position to position in which withdrawing gas stream is released |
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8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |