DE102012016996A1 - Airbag for motor vehicle, particular passenger car, comprises valve unit with permeable fabric element and film, which has flow opening and is arranged overlapping with textile element, which is partially covered by protective layer - Google Patents
Airbag for motor vehicle, particular passenger car, comprises valve unit with permeable fabric element and film, which has flow opening and is arranged overlapping with textile element, which is partially covered by protective layer Download PDFInfo
- Publication number
- DE102012016996A1 DE102012016996A1 DE201210016996 DE102012016996A DE102012016996A1 DE 102012016996 A1 DE102012016996 A1 DE 102012016996A1 DE 201210016996 DE201210016996 DE 201210016996 DE 102012016996 A DE102012016996 A DE 102012016996A DE 102012016996 A1 DE102012016996 A1 DE 102012016996A1
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- Germany
- Prior art keywords
- airbag
- film
- protective layer
- volume
- retention
- 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
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- 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
-
- 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
- B60R21/239—Inflatable members characterised by their venting 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
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23115—Inflatable members characterised by their shape, construction or spatial configuration with inflatable support compartments creating an internal suction volume
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft einen Airbag für einen Kraftwagen der im Oberbegriff des Patentanspruchs 1 angegebenen Art.The invention relates to an airbag for a motor vehicle specified in the preamble of claim 1. Art.
Aus dem Serienbau von Personenkraftwagen sind derartige Airbags hinlänglich bekannt. Ein solcher Airbag umfasst ein Auffangelement zum Auffangen und Rückhalten eines Fahrzeuginsassen, der infolge einer unfallbedingten Kraftbeaufschlagung verlagert wird. Das Auffangelement ist dazu aus einer Aufbewahrungsposition in eine Rückhalteposition bewegbar.From the mass production of passenger cars such airbags are well known. Such an airbag comprises a catch element for catching and restraining a vehicle occupant, which is displaced as a result of an accident-induced application of force. The collecting element is to move from a storage position to a retaining position.
Durch das Auffangelement ist in seiner Rückhalteposition ein Rückhaltevolumen des Airbags zumindest bereichsweise umgeben. Der Airbag umfasst ferner wenigstens eine Ventileinrichtung, über welche dem Rückhaltevolumen bei der Bewegung des Auffangelements in die Rückhalteposition ein gasförmiges Medium zuführbar ist.By the collecting element a retaining volume of the airbag is at least partially surrounded in its retention position. The airbag further comprises at least one valve device, via which a gaseous medium can be fed to the retention volume during the movement of the collecting element into the retaining position.
Aus der
Zum Schutze des Fahrzeuginsassen bei einer unfallbedingten Kraftbeaufschlagung des Personenkraftwagens ist es vorteilhaft, wenn sich das Auffangelement sehr schnell in die Rückhalteposition bewegt. Dieser schnellen Bewegung in die Rückhalteposition kommt es zugute, wenn sich das Rückhaltevolumen über die Ventileinrichtung sehr schnell, d. h. in kurzer Zeit mit dem gasförmigen Medium füllen kann.To protect the vehicle occupant in an accidental application of force to the passenger car, it is advantageous if the collecting element moves very quickly in the retention position. This rapid movement into the retention position is beneficial if the retention volume via the valve device very quickly, d. H. can fill in a short time with the gaseous medium.
Es ist daher Aufgabe der vorliegenden Erfindung, einen Airbag für einen Kraftwagen der eingangs genannten Art zu schaffen, dessen Auffangelement besonders schnell in die Rückhalteposition bewegbar ist.It is therefore an object of the present invention to provide an airbag for a motor vehicle of the type mentioned, the collecting element is particularly fast in the retaining position movable.
Diese Aufgabe wird durch einen Airbag mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen und nicht-trivialen Weiterbildungen der Erfindung sind in den übrigen Ansprüchen angegeben.This object is achieved by an airbag having the features of patent claim 1. Advantageous embodiments with expedient and non-trivial developments of the invention are specified in the remaining claims.
Um einen Airbag der im Oberbegriff des Anspruchs 1 genannten Art zu schaffen, dessen Auffangelement besonders schnell in eine Rückhalteposition bewegbar ist, ist es erfindungsgemäß vorgesehen, dass die Ventileinrichtung wenigstens ein für das gasförmige Medium durchlässiges Textilelement und zumindest eine wenigstens eine Durchströmungsöffnung für das Medium aufweisende und in zumindest bereichsweiser Überdeckung mit dem Textilelement angeordnete Folie umfasst, welche auf wenigstens einer Seite zumindest bereichsweise durch zumindest eine Schutzschicht überdeckt ist.In order to provide an airbag of the type mentioned in the preamble of claim 1, the collecting element is particularly fast in a retaining position movable, it is provided according to the invention that the valve device comprises at least one permeable for the gaseous medium textile element and at least one at least one flow opening for the medium and in at least partially covering with the textile element arranged film comprises, which is at least partially covered on at least one side by at least one protective layer.
Die Schutzschicht verhindert, dass Bereiche der beispielsweise aus einem Kunststoff gebildeten Folie, insbesondere in der Aufbewahrungsposition, aneinander haften, beispielsweise miteinander verkleben, was die Bewegung des Auffangelements in die Rückhalteposition beeinträchtigen könnte. Somit ist eine schnelle Bewegung, insbesondere ein schnelles Entfalten, des Auffangelements realisierbar.The protective layer prevents regions of the film formed, for example, from a plastic, in particular in the storage position, adhere to one another, for example, stick together, which could affect the movement of the collecting element in the retention position. Thus, a fast movement, in particular a rapid deployment of the collecting element can be realized.
Dies ist insbesondere vorteilhaft, wenn die Folie beim Bewegen des Auffangelements aus der Aufbewahrungsposition in die Rückhalteposition mit dem Auffangelement mitbewegt wird. Somit kann auch die Folie sehr schnell von der Aufbewahrungsposition in die Rückhalteposition bewegt werden. Zudem ist ein geringes, sogenanntes Packvolumen des Airbags in der Aufbewahrungsposition darstellbar. Das Packvolumen ist dabei das Volumen, welches das Auffangelement beispielsweise mit der am Auffangelement gehaltenen und mit diesem in die Rückhalteposition mitbewegbaren Folie in der Aufbewahrungsposition einnimmt.This is particularly advantageous when the film is moved when moving the collecting element from the storage position to the retaining position with the collecting element. Thus, the film can be moved very quickly from the storage position to the retention position. In addition, a small, so-called packing volume of the airbag in the storage position can be displayed. The packing volume is the volume which occupies the collecting element, for example, with the held on the collecting element and mitbewegbaren with this in the retention position film in the storage position.
Zur Realisierung einer sehr guten Flexibilität und Biegeschlaffheit der Folie auch über eine hohe Lebensdauer des Airbags ist die Folie vorzugsweise aus Polyurethan gebildet. Um nun die Gefahr, dass Bereiche der Folie aneinander haften, und/oder ein Altern der Folie beispielsweise durch Oberflächeneinflüsse zu vermeiden oder besonders gering zu halten, ist die Schutzschicht vorgesehen. Die insbesondere elastische Folie kann jedoch auch aus einem anderweitigen Werkstoff gebildet sein.To realize a very good flexibility and bending slackness of the film over a long service life of the airbag, the film is preferably formed of polyurethane. In order to avoid the danger that areas of the film adhere to one another, and / or to prevent aging of the film, for example due to surface influences, or to keep it particularly low, the protective layer is provided. However, the particular elastic film may also be formed from another material.
Die Schutzschicht und die Folie sind vorteilhafterweise aus voneinander unterschiedlichen Materialen bzw. Werkstoffen gebildet. Vorzugsweise ist die Schutzschicht einem Copolyester gebildet. Dieses Material ist besonders gut geeignet, ein Haften einzelner Folienbereiche aneinander zu verhindern. Die Schutzschicht ist hierbei vorzugsweise als weitere Folie aus Copolyester, insbesondere aus modifiziertem PET (PET – Polyethylenterephthalat), ausgestaltet. Infolge der Ausgestaltung der Schutzschicht als weitere Folie aus modifiziertem PET weist die Schutzschicht einen geringen Schmelzpunkt auf, welcher im Bereich des Schmelzpunkts der Folie aus Polyurethan liegt. Dadurch können ein besonders vorteilhafter Schutz der ersten Folie sowie eine vorteilhafte Herstellbarkeit des Airbags realisiert werden. Die Schutzschicht kann jedoch auch als weitere Folie aus einem anderweitigen Werkstoff ausgebildet sein, um die erste Folie zu schützen.The protective layer and the film are advantageously formed from mutually different materials or materials. Preferably, the protective layer is a copolyester. This material is particularly well suited to prevent adhesion of individual film areas together. The protective layer is here preferably designed as a further film of copolyester, in particular of modified PET (PET - polyethylene terephthalate). Due to the design of the protective layer as a further film of modified PET, the protective layer has a low melting point, which is in the range of the melting point of the film of polyurethane. This allows a particularly advantageous protection of the first film and an advantageous manufacturability of the airbag can be realized. However, the protective layer can also be formed as a further film of another material to protect the first film.
Als besonders vorteilhaft hat es sich in weiterer Ausgestaltung der Erfindung gezeigt, wenn die Folie beidseitig, d. h. auf einer ersten Seite und auf einer der ersten Seite abgewandten, zweiten Seite mit einer jeweiligen Schutzschicht zumindest teilweise überdeckt ist. Dadurch kann die Gefahr des Haftens von Folienbereichen aneinander sowie die Alterung der Folie besonders gering gehalten oder vermieden werden. Hierdurch ist eine Sandwich-Struktur geschaffen, wobei die beidseitigen Schutzschichten jeweilige Decklagen und die Folie einen Kern der Sandwich-Struktur bilden. Die Decklagen sind dabei über den Kern voneinander beabstandet. It has proven to be particularly advantageous in a further embodiment of the invention if the film is at least partially covered with a respective protective layer on both sides, ie on a first side and on a second side facing away from the first side. As a result, the risk of adhesion of film areas to each other and the aging of the film can be kept particularly low or avoided. As a result, a sandwich structure is created, wherein the two-sided protective layers form respective cover layers and the film forms a core of the sandwich structure. The cover layers are spaced apart from each other via the core.
Vorteilhafterweise ist die Schutzschicht bzw. sind die Schutzschichten mit der Folie verbunden, so dass die Schutzschicht bzw. die Schutzschichten mit der Folie in die Rückhalteposition mitbewegbar sind und auch bei der Bewegung in die Rückhalteposition ein Haften von Folienbereichen aneinander vermeiden können.Advantageously, the protective layer or the protective layers are connected to the film so that the protective layer or the protective layers with the film can be moved into the retaining position and can also prevent adhesion of film areas to one another during movement into the retaining position.
Der Verbund aus Folie und Schutzschicht bzw. aus Folie und beidseitigen Schutzschichten und der durch diesen Verbund verwirklichte Schutz der Folie gegen ein Haften von Folienbereichen aneinander sind dabei unabhängig vom Herstellungsverfahren des Verbundes. Mit anderen Worten kann der geschilderte Schutz der Folie mittels der wenigstens einen Schutzschicht durch unterschiedliche Herstellungsverfahren realisiert werden.The composite of film and protective layer or foil and bilateral protective layers and the realized by this composite protection of the film against adhesion of film areas together are independent of the manufacturing process of the composite. In other words, the described protection of the film can be realized by means of the at least one protective layer by different manufacturing methods.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung. Die vorstehen in der Beschreibung genannten Merkmale und Merkmalskombination sowie die nachfolgend in den Fig. und/oder in der Figurenbeschreibung genannten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmend er Erfindung zu verlassen.Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiments and from the drawing. The features and feature combination mentioned in the description as well as the features and feature combinations mentioned below in the figures and / or in the description of the figures can be used not only in the respectively indicated combination but also in other combinations or alone, without the scope of the invention to leave.
Die Zeichnung zeigt in:The drawing shows in:
Mit anderen Worten werden zum Bewegen der Stützstruktur
Die Volumenelemente
Das Füllen des Rückhaltevolumens
Der Airbag
Wie in Zusammenschau mit
Ferner weist die Folie
Die Funktion der Schlauchventile
Bewegt sich nun die Stützstruktur
Trifft nun der Fahrzeuginsasse aufgrund seiner unfallbedingten Verlagerung auf die Stützstruktur
Die Herstellung der Folie
Die Schutzschichten
Die Schutzschichten kaschieren und schützen die Folie
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102007052246 A1 [0004] DE 102007052246 A1 [0004]
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210016996 DE102012016996A1 (en) | 2012-08-28 | 2012-08-28 | Airbag for motor vehicle, particular passenger car, comprises valve unit with permeable fabric element and film, which has flow opening and is arranged overlapping with textile element, which is partially covered by protective layer |
PCT/EP2013/002329 WO2014032759A1 (en) | 2012-08-28 | 2013-08-03 | Airbag for a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210016996 DE102012016996A1 (en) | 2012-08-28 | 2012-08-28 | Airbag for motor vehicle, particular passenger car, comprises valve unit with permeable fabric element and film, which has flow opening and is arranged overlapping with textile element, which is partially covered by protective layer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012016996A1 true DE102012016996A1 (en) | 2013-03-28 |
Family
ID=47828000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210016996 Withdrawn DE102012016996A1 (en) | 2012-08-28 | 2012-08-28 | Airbag for motor vehicle, particular passenger car, comprises valve unit with permeable fabric element and film, which has flow opening and is arranged overlapping with textile element, which is partially covered by protective layer |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102012016996A1 (en) |
WO (1) | WO2014032759A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007052246A1 (en) | 2007-11-02 | 2009-05-07 | Daimler Ag | Airbag, in particular for a motor vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6017057A (en) * | 1998-03-13 | 2000-01-25 | Trw Inc. | Inflatable vehicle occupant protection device |
DE102006043552B4 (en) * | 2006-09-12 | 2009-03-05 | Takata-Petri Ag | Airbag for an airbag module of a motor vehicle |
DE102008015731A1 (en) * | 2008-03-26 | 2009-10-08 | Schreiner Group Gmbh & Co. Kg | Airbag jacket element |
DE102008057376A1 (en) * | 2008-11-14 | 2010-05-20 | Daimler Ag | Airbag with channel-shaped closure element |
DE102010007882A1 (en) * | 2010-02-13 | 2011-08-18 | Daimler AG, 70327 | Valve device for a medium and airbag for a motor vehicle with such a valve device |
-
2012
- 2012-08-28 DE DE201210016996 patent/DE102012016996A1/en not_active Withdrawn
-
2013
- 2013-08-03 WO PCT/EP2013/002329 patent/WO2014032759A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007052246A1 (en) | 2007-11-02 | 2009-05-07 | Daimler Ag | Airbag, in particular for a motor vehicle |
Also Published As
Publication number | Publication date |
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WO2014032759A1 (en) | 2014-03-06 |
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R230 | Request for early publication | ||
R005 | Application deemed withdrawn due to failure to request examination |