DE202013005072U1 - Airbag with an adaptive ventilation device and pedestrian protection device with such a gas bag - Google Patents
Airbag with an adaptive ventilation device and pedestrian protection device with such a gas bag Download PDFInfo
- Publication number
- DE202013005072U1 DE202013005072U1 DE201320005072 DE202013005072U DE202013005072U1 DE 202013005072 U1 DE202013005072 U1 DE 202013005072U1 DE 201320005072 DE201320005072 DE 201320005072 DE 202013005072 U DE202013005072 U DE 202013005072U DE 202013005072 U1 DE202013005072 U1 DE 202013005072U1
- Authority
- DE
- Germany
- Prior art keywords
- state
- airbag according
- frame
- cover
- ventilation opening
- 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 - Lifetime
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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
- B60R21/23—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
- B60R21/239—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
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/36—Protecting non-occupants of a vehicle, e.g. pedestrians using airbags
-
- 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
- B60R2021/23384—Internal tether means having ends which are movable or detachable during deployment
-
- 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
- B60R2021/2395—Inflatable members characterised by their venting means comprising means to control the venting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Gassack (22) mit einer adaptiven Ventilationseinrichtung (26), wobei
der Gassack (22) eine aus einem flexiblen Material, insbesondere Gewebe, bestehende Hülle (23) aufweist, welche wenigstens eine Kammer (24) umschließt,
die Hülle (23) eine Ventilationsöffnung (28) aufweist,
die Ventilationsöffnung (28) in einem ersten Zustand von einem Abdeckelement (54) zumindest teilweise abgedeckt ist,
die Ventilationsöffnung (28) in einem zweiten Zustand vom Abdeckelement (54) weniger abgedeckt ist als im ersten Zustand und
ein mit dem Abdeckelement (54) verbundenes Zugelement vorgesehen ist, so dass bei Überschreiten einer vorbestimmten Zugspannung im Zugelement das Abdeckelement (54) seinen Zustand ändert,
dadurch gekennzeichnet, dass ein die Ventilationsöffnung (28) zumindest teilweise umlaufender Rahmen (32) vorgesehen ist, an welchem das Abdeckement (54) zumindest in einem Ausgangszustand verschiebbar angeordnet ist.Airbag (22) with an adaptive ventilation device (26), wherein
the gas bag (22) has a sheath (23) made of a flexible material, in particular fabric, which encloses at least one chamber (24),
the shell (23) has a ventilation opening (28),
the ventilation opening (28) is at least partially covered by a cover element (54) in a first state,
the ventilation opening (28) is covered less by the cover element (54) in a second state than in the first state and
a tension element connected to the cover element (54) is provided so that when a predetermined tension in the tension element is exceeded, the cover element (54) changes state,
characterized in that a the ventilation opening (28) at least partially encircling frame (32) is provided, on which the Abdeckement (54) is slidably disposed at least in an initial state.
Description
Die Erfindung betrifft einen Gassack mit einer adaptiven Ventilationseinrichtung nach dem Oberbegriff des Anspruchs 1 sowie eine Fußgänger-Schutzeinrichtung mit einem solchen Gassack nach Anspruch 13.The invention relates to a gas bag with an adaptive ventilation device according to the preamble of claim 1 and a pedestrian protection device with such a gas bag according to claim 13.
In der Patentliteratur werden schon seit geraumer Zeit Fußgänger-Schutzeinrichtungen diskutiert, welche wenigstens einen Gassack aufweisen, welcher sich im Falle eines Fußgängerunfalls vor der Windschutzscheibe und/oder vor wenigstens einer A-Säule des Kraftfahrzeugs aufbläst. Eine Fußgänger-Schutzeinrichtung mit einem solchen Gassack ist beispielsweise in der
Die
Die
Nachteilig an derartigen aktiven Ventilationseinrichtungen ist, dass eine Abstimmung der Reißnaht dahingehend, dass sie dem Innendruck bei befüllter Hülle standhält, bei einer vorbestimmten Zugkraft im Zugelement jedoch sicher reißt, schwierig ist. Durch diese Forderung wird insbesondere die Größe der Ventilationsöffnung begrenzt, was gerade für den oben beschriebenen Anwendungsfall von erheblichem Nachteil ist, da eine möglichst schnelle (im Idealfall ”schlagartige”) Entlüftung des Gassackes erfolgen soll.A disadvantage of such active ventilation devices is that a vote of the tear seam in that it withstands the internal pressure when the envelope is filled, but ruptures safely at a predetermined tensile force in the tension element, is difficult. By this requirement, in particular the size of the ventilation opening is limited, which is just for the application described above of considerable drawback, since the fastest possible (ideally "sudden") ventilation of the airbag should be made.
Hiervon ausgehend stellt sich die vorliegende Erfindung die Aufgabe, einen gattungsgemäßen Gassack mit einer adaptiven Ventilationseinrichtung dahingehend weiterzubilden, dass, insbesondere auch bei großen Ventilationsöffnungen, ein versehentliches Freigeben der Ventilationsöffnung ebenso ausgeschlossen ist wie ein Versagen der Ventilationseinrichtung beim beabsichtigten Freigeben der Ventilationsöffnung.On this basis, the present invention has the object to develop a generic airbag with an adaptive ventilation device to the effect that, especially with large ventilation openings, an accidental release of the ventilation opening is also excluded as a failure of the ventilation device in the intended release of the ventilation opening.
Diese Aufgabe wird durch einen Gassack mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by an airbag with the features of claim 1.
Erfindungsgemäß ist ein die Ventilationsöffnung – vorzugsweise vollständig – umlaufender Rahmen vorgesehen, an welchem das Abdeckelement zumindest in einem Ausgangszustand verschiebbar angeordnet ist. Die Verschieberichtung des Abdeckelementes ist hierbei im Allgemeinen parallel zu der Ebene, welche durch den Rand der Ventilationsöffnung definiert wird, das heißt, die Kraft, welche auf Grund des Gasdruckes auf das Verschlusselement ausgeübt wird, ist im Allgemeinen senkrecht zu der Bewegungsrichtung, in welcher das Verschlusselement durch das Zugelement bewegt wird, um seinen Zustand zu ändern (im Allgemeinen ist der Ausgangszustand der geschlossene Zustand, d. h. der Zustand, in welchem das Abdeckelement die Ventilationsöffnung ganz oder teilweise abdeckt; bei der erfindungsgemäßen Ausgestaltung der Ventilationseinrichtung ist jedoch auch das Umgekehrte möglich). Durch diese praktisch vollständige Richtungsentkopplung wird es auch bei großen Ventilationsöffnungen möglich, das erfindungsgemäße Ziel zu erreichen, nämlich eine hohe Funktionssicherheit. Weiterhin weist die Ventilationseinrichtung eine sehr gute Reproduzierbarkeit der Ergebnisse auf, da keine Reißnähte vorgesehen sein müssen. Ferner ist die Herstellung zu einem hohen Grad automatisierbar.According to the invention a ventilation opening - preferably completely - circumferential frame is provided, on which the cover is slidably disposed at least in an initial state. The direction of displacement of the cover element is in this case generally parallel to the plane defined by the edge of the ventilation opening, that is to say the force which is exerted on the closure element due to the gas pressure is generally perpendicular to the direction of movement in which Closing element is moved by the tension element to change its state (in general the initial state is the closed state, ie the state in which the cover element completely or partially covers the ventilation opening, but in the embodiment of the ventilation device according to the invention the reverse is also possible) , This virtually complete directional decoupling makes it possible, even with large ventilation openings, to achieve the object according to the invention, namely a high level of functional reliability. Furthermore, the ventilation device has a very good reproducibility of the results, since no tear seams must be provided. Furthermore, the production can be automated to a high degree.
Das bevorzugte Einsatzgebiet (wenn auch nicht das einig denkbare) des erfindungsgemäßen Gassacks sind Fußgänger-Schutzeinrichtungen gemäß Anspruch 13.The preferred field of use (although not the unthinkable) of the gas bag according to the invention are pedestrian protection devices according to claim 13.
Bevorzugte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen sowie aus dem nun mit Bezug auf die Figuren näher dargestellten Ausführungsbeispiel. Preferred embodiments of the invention will become apparent from the subclaims and from the embodiment now shown in more detail with reference to the figures.
Die Erfindung wird nun anhand eines Ausführungsbeispiels mit Bezug auf die Figuren näher erläutert. Hierbei zeigen:The invention will now be explained in more detail using an exemplary embodiment with reference to the figures. Hereby show:
Die
Das Abdeckelement
Nachdem die Hülle
Mit Bezug auf die
Zur Montage des Ventils
Wird über das erste Zugseil (welches in den
Im gezeigten konkreten Ausführungsbeispiel ist der erste Zustand (also der geschlossene Zustand) der Ausgangszustand. Dies wird im Allgemeinen auch die bevorzugte Anwendung sein, eine Umkehrung ist jedoch ebenfalls möglich, so dass das Abdeckelement von einem offenen Ausgangszustand in den Rahmen hineingezogen wird.In the specific embodiment shown, the first state (ie, the closed state) is the initial state. This will generally also be the preferred application, but a reversal is also possible so that the cover member is drawn into the frame from an open initial condition.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1010
- MotorhaubeEngine Hood
- 1212
- WindschutzscheibeWindshield
- 2020
- Gehäusecasing
- 2222
- Gassackairbag
- 2323
- Hülleshell
- 2424
- Kammerchamber
- 2626
- Ventilationseinrichtungventilation device
- 2828
- Ventilationsöffnungvent
- 3030
- VentilValve
- 3232
- Rahmenframe
- 3434
- erstes Teilfirst part
- 34a34a
- erste Kontaktoberflächefirst contact surface
- 3636
- umlaufender Randsurrounding border
- 3838
- Nutgroove
- 3939
- Schlitzslot
- 4040
- Stegweb
- 4242
- Stiftpen
- 4444
- zweites Teilsecond part
- 44a44a
- zweite Kontaktoberflächesecond contact surface
- 4646
- umlaufender Randsurrounding border
- 5050
- Stegweb
- 5252
- DurchgangsöffnungThrough opening
- 5454
- Abdeckelementcover
- 5656
- Befestigungsöffnungfastening opening
- 5858
- Ausstülpungprotuberance
- 6060
- Gasgeneratorinflator
- 6262
- Retraktorretractor
- 7070
- erstes Zugseilfirst pull rope
- 7272
- zweites Zugseilsecond pull rope
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
- JP 2006219046 A [0002, 0002] JP 2006219046 A [0002, 0002]
- EP 2439113 A1 [0003] EP 2439113 A1 [0003]
- EP 11000604 A1 [0004] EP 11000604 A1 [0004]
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201320005072 DE202013005072U1 (en) | 2013-06-04 | 2013-06-04 | Airbag with an adaptive ventilation device and pedestrian protection device with such a gas bag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201320005072 DE202013005072U1 (en) | 2013-06-04 | 2013-06-04 | Airbag with an adaptive ventilation device and pedestrian protection device with such a gas bag |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202013005072U1 true DE202013005072U1 (en) | 2013-07-08 |
Family
ID=48951171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201320005072 Expired - Lifetime DE202013005072U1 (en) | 2013-06-04 | 2013-06-04 | Airbag with an adaptive ventilation device and pedestrian protection device with such a gas bag |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202013005072U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013014206A1 (en) * | 2013-08-26 | 2015-02-26 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Pedestrian protection system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006219046A (en) | 2005-02-14 | 2006-08-24 | Mazda Motor Corp | Pedestrian protecting device for vehicle |
EP2439113A1 (en) | 2010-10-06 | 2012-04-11 | Autoliv Development AB | Inflatable airbag for pedestrian impact |
EP2481647A1 (en) | 2011-01-26 | 2012-08-01 | Autoliv Development AB | Pedestrian airbag arrangement |
-
2013
- 2013-06-04 DE DE201320005072 patent/DE202013005072U1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006219046A (en) | 2005-02-14 | 2006-08-24 | Mazda Motor Corp | Pedestrian protecting device for vehicle |
EP2439113A1 (en) | 2010-10-06 | 2012-04-11 | Autoliv Development AB | Inflatable airbag for pedestrian impact |
EP2481647A1 (en) | 2011-01-26 | 2012-08-01 | Autoliv Development AB | Pedestrian airbag arrangement |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013014206A1 (en) * | 2013-08-26 | 2015-02-26 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Pedestrian protection system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20130829 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years | ||
R082 | Change of representative |
Representative=s name: SCHOEN, THILO, DIPL.-PHYS., DE |
|
R151 | Utility model maintained after payment of second maintenance fee after six years | ||
R152 | Utility model maintained after payment of third maintenance fee after eight years | ||
R071 | Expiry of right |