DE19837749B4 - Airbag module with tethers - Google Patents
Airbag module with tethers Download PDFInfo
- Publication number
- DE19837749B4 DE19837749B4 DE1998137749 DE19837749A DE19837749B4 DE 19837749 B4 DE19837749 B4 DE 19837749B4 DE 1998137749 DE1998137749 DE 1998137749 DE 19837749 A DE19837749 A DE 19837749A DE 19837749 B4 DE19837749 B4 DE 19837749B4
- Authority
- DE
- Germany
- Prior art keywords
- airbag
- airbag module
- module according
- propagation
- speed
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01504—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use detecting bag displacement
-
- 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
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
-
- 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
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
-
- 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
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
-
- 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
- B60R2021/2765—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 comprising means to control the venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/18—Anchoring devices
- B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Airbagmodul, aufweisend wenigstens einen Gasgenerator (1) und einen Gassack (2), in den der wenigstens eine Gasgenerator (1) auf ein Auslösesignal hin schlagartig Gas einleitet, und in dem wenigstens ein an seiner frontalen Innenseite befestigtes Band (4) verläuft, welches rückseitig in einen Zugmechanismus (9) führt, wobei die Ausbreitungsgeschwindigkeit des Gassackes (2) sensiert wird und in Abhängigkeit von der sensierten Ausbreitungsgeschwindigkeit der Zugmechanismus (9) so betätigt wird, daß er im Falle einer festgestellten reduzierten Ausbreitungsgeschwindigkeit die Ausbreitung des Gassackes (2) zumindest teilweise rückgängig macht.Airbag module, comprising at least one gas generator (1) and an airbag (2), in which the at least one gas generator (1) to a trigger signal abruptly introduces gas, and in which at least one at its frontal Inside fixed band (4) runs, which is back into a pulling mechanism (9), wherein the speed of propagation of the airbag (2) senses becomes and depending from the sensed propagation speed of the pulling mechanism (9) so pressed he will in the case of a detected reduced propagation velocity the spread of the airbag (2) at least partially reverses.
Description
Die vorliegende Erfindung betrifft ein Airbagmodul, das eine spezielle Vorrichtung zum zumindest Abbremsen des Ausbreitungsvorganges des Gassackes für den Fall aufweist, daß sich der Fahrzeuginsasse in der sogenannten "out-of-Position" Sitzposition befindet, also beispielsweise zu dicht am Airbagmodul sitzt.The The present invention relates to an airbag module that has a special Device for at least slowing down the propagation process of Airbag for has the case that the vehicle occupant is in the so-called "out-of-position" seating position, so for example sits too close to the airbag module.
Es ist bekannt, daß Airbags nach Auslösung schwere körperliche Beeinträchtigungen hervorrufen können, wenn der Fahrzeuginsasse sich nicht in einer vordefinierten Sitzposition befindet. Selbst tödliche Unfälle aufgrund eines vom Airbag verursachten Genickbruches beim Fahrzeuginsassen sind registriert worden.It is known that airbags after triggering heavy physical impairments can cause if the vehicle occupant is not in a predefined seating position located. Even deadly accidents due to a caused by the airbag neck break in the vehicle occupants have been registered.
Vorliegend wird ausgegangen von einem Airbagmodul, welches wenigstens einen Gasgenerator und einen Gassack aufweist, in den der wenigstens eine Gasgenerator auf ein Auslösesignal hin schlagartig Gas einleitet. Im Inneren des Gassackes verläuft ein Band, das mit der frontalen Innenseite des Gassackes verbunden ist.present is assumed by an airbag module, which at least one Gas generator and a gas bag, in which the at least one Gas generator on a trigger signal suddenly gas starts. Inside the airbag runs a Band that is connected to the frontal inside of the airbag.
Ein
derartiges Airbagmodul ist bekannt aus der
Aus der US-A-5 249 825 ist ein Airbagmodul vorgesehen, welches wenigstens einen Gasgenerator und einen Gassack aufweist, in den der wenigstens eine Gasgenerator auf ein Auslösesignal hin Gas einleitet. Mit der frontalen Innenseite des Gassackes ist mindestens ein im Inneren des Gassackes verlaufendes Fangband verbunden. Dieses ist rückseitig ortsfest verankert über eine eine der Ausbreitung des Gassackes entgegenwirkende Kraft in das Fangband einleitende Vorrichtung. Die Gegenkraft, die durch die Vorrichtung eingeleitet wird, hat einen solchen Verlauf, daß die Entfaltungsgeschwindigkeit des Gassackes anfangs stärker reduziert wird als bei weiter zunehmender Entfaltung des Gassackes.Out US Pat. No. 5,249,825 provides an airbag module which at least a gas generator and an airbag, in which at least a gas generator on a trigger signal Gas is introduced. With the frontal inside of the airbag is connected at least one running inside the airbag tether. This is back anchored over a one of the spread of the airbag counteracting force in the tether initiating device. The drag that is through the device is introduced, has such a course that the deployment speed of the Airbag initially stronger is reduced as in further increasing deployment of the airbag.
Wenn bei diesem bekannten Airbagmodul auch die "out-of-Position"-Belastungen gegenüber anderen Systemen schon geringer sind, besteht Bedarf dafür, daß ein System die in dem bekannten System steckenden Reserven noch besser ausnutzt.If in this known airbag module and the "out-of-position" loads compared to other systems already are less, there is a need for a system that in the known System sticking reserves even better exploited.
Vor diesem Hintergrund ist es die Aufgabe der vorliegenden Erfindung, ein Airbagmodul anzugeben, bei dem die "out-of-Position"-Belastungen noch weiter reduziert werden.In front In this context, it is the object of the present invention specify an airbag module in which the "out-of-position" loads are further reduced.
Gelöst wird diese Aufgabe durch das Airbagmodul mit den Merkmalen des Anspruchs 1. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben. Demgemäß ist ein Airbagmodul vorgesehen, welches wenigstens einen Gasgenerator und einen Gassack aufweist, in den der wenigstens eine Gasgenerator auf ein Auslösesignal hin schlagartig Gas einleitet. In dem Gassack verläuft ein an seiner frontalen Innenseite befestigtes Fangband, welches rückseitig in einen Zugmechanismus führt. Die Ausbreitungsgeschwindigkeit des Gassacks wird sensiert. In Abhängigkeit von der sensierten Ausbreitungsgeschwindigkeit wird nun der Zugmechanismus so betätigt, daß er im Falle einer festgestellten reduzierten Ausbreitungsgeschwindigkeit die Ausbreitung des Gassackes zumindest teilweise rückgängig macht. Der Gassack wird in diesem Falle also aktiv wieder von dem Fahrzeuginsassen weggezogen, um die Belastung zu reduzieren.Is solved this object by the airbag module with the features of the claim 1. Advantageous developments are specified in the subclaims. Accordingly, a Airbag module provided which at least one gas generator and a Has gas bag, in which the at least one gas generator to a trigger signal suddenly gas starts. In the gas bag runs a on its front inside attached tether, which back leads into a pulling mechanism. The speed of propagation of the gas bag is sensed. Dependent on from the sensed propagation speed, the traction mechanism will become like this actuated, that he is in Case of a detected reduced propagation velocity makes the spread of the airbag at least partially reversible. The gas bag is in this case so active again by the vehicle occupants pulled away to reduce the burden.
Der Zugmechanismus kann bevorzugt ein pyrotechnischer Straffer sein, wie er im übrigen handelsüblich ist zur Verwendung als Gurtstraffer.Of the Pulling mechanism may preferably be a pyrotechnic tensioner as he does otherwise commercially is for use as a belt tensioner.
Besonders bevorzugt wird es, wenn als zusätzliche Maßnahme zur Verhinderung oder Erschwerung der weiteren Ausbreitung des Gassackes bei sensierter reduzierter Ausbreitungsgeschwindigkeit ein Aktuator Gasabströmklappen im Gehäuse des Moduls öffnet. In diesem Falle wird also nicht nur der weiteren Ausbreitung des Gassackes durch Abbremsung der Fangbänder entgegengewirkt, sondern vielmehr aktiv dafür gesorgt, daß der Gasdruck im Gassack nicht weiter erhöht wird.Especially it is preferred if as additional measure to prevent or hinder the further spread of the airbag sensed reduced propagation velocity an actuator Gasabströmklappen in the case of the Module opens. In this case, not only the further spread of the Airbag counteracted by deceleration of the tethers, but rather active for it taken care of that Gas pressure in the gas bag is not further increased.
Bei der vorerwähnten Weiterbildung kann noch zusätzlich vorgesehen sein, daß durch das Öffnen der Gasabströmklappen der Strömungsquerschnitt zwischen Gasgenerator und Gassack reduziert wird. Dies bedeutet, daß durch gezieltes Abklappen einzelner Gasabströmklappen in den Strömungsquerschnitt für das Gas zwischen Gasgenerator und Gassack eine Reduzierung des Strömungsquerschnittes erzielbar ist. Hierdurch wird die nach Aktivierung des Moduls in den Gassack strömende Gasmenge weiter reduziert.at the aforesaid Further education may be additional be provided that by the opening the gas outlet flaps the flow cross section between gas generator and gas bag is reduced. This means, that by targeted folding down of individual gas outlet flaps in the flow cross-section for the Gas between gas generator and gas bag a reduction of the flow cross-section is achievable. This will activate the module after activating the module the gas bag flowing gas further reduced.
Gemäß einer
bevorzugten Weiterbildung ist vorgesehen, daß das wenigstens eine Band
im Zusammenwirken mit einer Abtastvorrichtung sowie einer Elektronikeinheit
als Sensor für
die Ausbreitungsgeschwindigkeit des Gassackes dient. Dies für sich genommen
ist bekannt aus der schon erwähnten
Es kann als vorteilhaft vorgesehen sein, die in das wenigstens eine Band eingeleiteten Bremskräfte konstant zu halten.It may be provided as advantageous in the at least one Band initiated braking forces to keep constant.
Gemäß einer Weiterbildung kann darüber hinaus vorgesehen sein, daß die in das wenigstens eine Band eingeleiteten Bremskräfte von der Auszugslänge des Bandes abhängen.According to one Further education can be about it Be provided that the in the at least one band introduced braking forces of the extension length depend on the band.
Alternativ kann vorgesehen sein, daß die eingeleiteten Bremskräfte von der Auszugsgeschwindigkeit des Bandes abhängen.alternative can be provided that the initiated braking forces depend on the pullout speed of the belt.
Schließlich ist auch eine Kombination beider vorerwähnter Weiterbildungen möglich, wonach die eingeleiteten Bremskräfte sowohl von der Auszugslänge, als auch von der Auszugsgeschwindigkeit des Bandes abhängen.Finally is Also a combination of both aforementioned developments possible, after which the initiated braking forces both from the extension length, as well as depend on the pullout speed of the tape.
Die Erfindung wird anhand eines Ausführungsbeispieles gemäß der Figuren näher erläutert. Hierbei zeigt:The Invention is based on an embodiment according to the figures explained in more detail. in this connection shows:
Gleiche Teile sind nachfolgend mit denselben Bezugszeichen versehen.Same Parts are provided below with the same reference numerals.
Gemäß
Der
frühe erste
Kontakt des Fahrzeuginsassen mit dem Gassack wird durch die Reduktion
der Ausbreitungsgeschwindigkeit des Gassackes
In
Zeitgleich
oder zeitversetzt mit der Betätigung
der Klappenöffnung
wird vorliegend der rückseitig
an den Fangbändern
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998137749 DE19837749B4 (en) | 1998-08-20 | 1998-08-20 | Airbag module with tethers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998137749 DE19837749B4 (en) | 1998-08-20 | 1998-08-20 | Airbag module with tethers |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19837749A1 DE19837749A1 (en) | 2000-03-02 |
DE19837749B4 true DE19837749B4 (en) | 2005-05-25 |
Family
ID=7878114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998137749 Expired - Fee Related DE19837749B4 (en) | 1998-08-20 | 1998-08-20 | Airbag module with tethers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19837749B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005028481A1 (en) * | 2005-06-20 | 2006-12-28 | Siemens Restraint Systems Gmbh | Airbag module for protecting motor vehicle inmates, has belts placed in connection with air bag, where length of belts is variably adjusted for adapting of air bag characteristic to structural conditions of vehicle during unfolding of bag |
US7712766B2 (en) | 2006-06-29 | 2010-05-11 | Takata-Petri Ag | Side airbag |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20010726U1 (en) | 2000-05-19 | 2000-08-31 | Trw Automotive Safety Sys Gmbh | Airbag module |
JP4631172B2 (en) * | 2001-01-22 | 2011-02-16 | タカタ株式会社 | Airbag device |
DE10311062B4 (en) | 2003-03-13 | 2006-07-27 | Key Safety Systems, Inc., Sterling Heights | Gas mass control for airbags |
DE102005037998A1 (en) * | 2005-02-25 | 2006-09-14 | Daimlerchrysler Ag | Airbag restraint system |
DE102005048912A1 (en) * | 2005-02-25 | 2006-08-31 | Daimlerchrysler Ag | Gasbag restraint system for motor vehicle has replenishment device outside gasbag and unfolding length depending on position of seat |
DE102005008653B4 (en) * | 2005-02-25 | 2008-09-25 | Daimler Ag | Airbag restraint system |
DE202005006330U1 (en) * | 2005-04-20 | 2005-08-18 | Trw Automotive Safety Systems Gmbh | Airbag module |
US7591482B2 (en) | 2006-02-16 | 2009-09-22 | Gm Global Technology Operations, Inc. | Air bag system |
DE102007006668A1 (en) | 2007-02-10 | 2008-08-14 | Daimler Ag | Front airbag device for a motor vehicle |
EP2524843B1 (en) * | 2011-05-20 | 2014-11-19 | Autoliv Development AB | A pedestrian air-bag retraction mechanism |
DE102017101060A1 (en) | 2017-01-20 | 2018-07-26 | Trw Automotive Gmbh | Tether control module and gas bag assembly |
DE102017108176A1 (en) * | 2017-04-18 | 2018-10-18 | Autoliv Development Ab | Airbag module with brake device for pyrotechnically driven actuator |
DE102019208352A1 (en) * | 2019-06-07 | 2020-12-10 | Psa Automobiles Sa | Apparatus and method for setting an extension of an airbag with a retaining strap that is adjustable in length and retains the airbag |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4258931A (en) * | 1978-08-17 | 1981-03-31 | Lee Joseph K | Air bag system for automobiles |
US5249825A (en) * | 1992-07-13 | 1993-10-05 | General Motors Corporation | Air bag with releasable tethers |
DE19611384A1 (en) * | 1996-03-22 | 1997-09-25 | Hs Tech & Design | Airbag system for motor vehicle |
EP0836971A1 (en) * | 1996-08-22 | 1998-04-22 | Volkswagen Aktiengesellschaft | Occupant protecting arrangment for a vehicle |
US5762367A (en) * | 1997-04-10 | 1998-06-09 | General Motors Corporation | Air bag module with inflation control device |
DE29805217U1 (en) * | 1998-03-23 | 1998-07-30 | Trw Airbag Sys Gmbh & Co Kg | Vehicle occupant restraint system |
-
1998
- 1998-08-20 DE DE1998137749 patent/DE19837749B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4258931A (en) * | 1978-08-17 | 1981-03-31 | Lee Joseph K | Air bag system for automobiles |
US5249825A (en) * | 1992-07-13 | 1993-10-05 | General Motors Corporation | Air bag with releasable tethers |
DE19611384A1 (en) * | 1996-03-22 | 1997-09-25 | Hs Tech & Design | Airbag system for motor vehicle |
EP0836971A1 (en) * | 1996-08-22 | 1998-04-22 | Volkswagen Aktiengesellschaft | Occupant protecting arrangment for a vehicle |
US5762367A (en) * | 1997-04-10 | 1998-06-09 | General Motors Corporation | Air bag module with inflation control device |
DE29805217U1 (en) * | 1998-03-23 | 1998-07-30 | Trw Airbag Sys Gmbh & Co Kg | Vehicle occupant restraint system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005028481A1 (en) * | 2005-06-20 | 2006-12-28 | Siemens Restraint Systems Gmbh | Airbag module for protecting motor vehicle inmates, has belts placed in connection with air bag, where length of belts is variably adjusted for adapting of air bag characteristic to structural conditions of vehicle during unfolding of bag |
DE102005028481B4 (en) * | 2005-06-20 | 2007-10-18 | Siemens Restraint Systems Gmbh | airbag module |
US7712766B2 (en) | 2006-06-29 | 2010-05-11 | Takata-Petri Ag | Side airbag |
Also Published As
Publication number | Publication date |
---|---|
DE19837749A1 (en) | 2000-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: SIEMENS RESTRAINT SYSTEM GMBH, 63755 ALZENAU, DE |
|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: CONTINENTAL SAFETY ENGINEERING INTERNATIONAL G, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120301 |