DE29616682U1 - Airbag opening and deployment mechanism - Google Patents
Airbag opening and deployment mechanismInfo
- Publication number
- DE29616682U1 DE29616682U1 DE29616682U DE29616682U DE29616682U1 DE 29616682 U1 DE29616682 U1 DE 29616682U1 DE 29616682 U DE29616682 U DE 29616682U DE 29616682 U DE29616682 U DE 29616682U DE 29616682 U1 DE29616682 U1 DE 29616682U1
- Authority
- DE
- Germany
- Prior art keywords
- airbag
- impact
- opening
- openings
- steering wheel
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims description 9
- 239000004744 fabric Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
- B60R21/21656—Steering wheel covers or similar cup-shaped covers
-
- 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
-
- 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
- B60R21/21—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle side panels, e.g. doors
-
- 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
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
-
- 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
-
- 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
- B60R21/261—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 other than bag structure to diffuse or guide inflation fluid
-
- 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
- B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
- Telephone Function (AREA)
Description
Gebrauchsmuster "Airbagöffnungs- und *eii4f iftWgsnrie^afiTsmus" *. * * * SerieUtility model "Airbag opening and locking mechanism" *. * * * Series
- Airbagöffnungs- und -entfaltungsmechanismus -- Airbag opening and deployment mechanism -
Faltungen und Öffnungsmechanismen von Airbags heutiger Bauart zeichnen sich durch eine im wesentlichen zentrale Faltung aus, welche dazu führt, daß der größte Teil des Airbaggewebes direkt nach Zünden des Generators in eine im wesentlichen axiale Bewegung in Richtung des Insassen beschleunigt wird, wodurch es zum einen in OOP-Situationen zu hohen Belastungen des Kopfes/Halses durch Kontakt mit dem beschleunigtem Gewebe kommt, zum anderen beim Lenken des Fahrzeuges in Abhängigkeit von der Lage der Arme zum Lenkrad zu Frakturen der Unterarme kommen kann.Folding and opening mechanisms of airbags of today's design are characterized by an essentially central folding, which means that the largest part of the airbag fabric is accelerated in an essentially axial movement towards the occupant immediately after the generator is ignited, which on the one hand leads to high loads on the head/neck due to contact with the accelerated fabric in OOP situations, and on the other hand when steering the vehicle, depending on the position of the arms in relation to the steering wheel, fractures of the forearms can occur.
Die hier gezeigte dezentrale Faltung und das durch die unterschiedlichen Festigkeiten herbeigeführte Öffnungsverhalten der Öffnungsklappen (1,3) (Fig. 1 und 2) verursachen eine sanfte Enfaltung des Airbags, der dadurch sogar in der Lage ist, OOP-Situationen zu beheben, indem die kinetische Energie des Airbags nicht wie bei heutigen Systemen in den Kopf/Hals eingeleitet wird, sondern in den Oberkörper, und bei Unterschreiten der gesetzlichen Grenzwerte und der biomechanischen Toleranzgrenzen ein "In-Normal-Positionbringen" des Insassen verursacht, so daß der Airbag auch in Situationen, in denen er mit in herkömmlicher Faltung kritisch sein könnte, sein volles Schutzpotentia! entfalten kann.The decentralized folding shown here and the opening behavior of the opening flaps (1,3) (Fig. 1 and 2) caused by the different strengths cause the airbag to unfold gently, which is even able to resolve OOP situations by directing the kinetic energy of the airbag not into the head/neck as in today's systems, but into the upper body, and when the legal limits and biomechanical tolerance limits are exceeded, it causes the occupant to "return to normal position", so that the airbag can develop its full protective potential even in situations in which it could be critical with conventional folding.
Das integrierte Prallpolster mit seinen Aufblasöffnungen (9) fördert diese Schutzwirkung gezielt, da diese Aufblasöffnungen (9), direkt hinter dem dezentral gefalteten Gewebe (7) positioniert, das Öffnen des Airbags in Richtung der Lenkradebene und nicht in Richtung des Insassen verursachen.The integrated impact pad with its inflation openings (9) specifically promotes this protective effect, since these inflation openings (9), positioned directly behind the decentrally folded fabric (7), cause the airbag to open in the direction of the steering wheel plane and not in the direction of the occupant.
Die sich öffnenden Klappen (1,3), welche z.B. zwischen den Lenkradspeichen (2) positioniert werden können, werden als richtungsweisende Airbaggewebeleithilfen verwendet, wodurch das Airbaggewebe vor und nicht hinter den Lenkradkranz (6) positioniert wird.The opening flaps (1,3), which can be positioned e.g. between the steering wheel spokes (2), are used as directional airbag fabric guides, whereby the airbag fabric is positioned in front of and not behind the steering wheel rim (6).
Nachdem sich also die schwächeren Reißnähte (4,8) geöffnet haben, das Gewebe, welches sich in den Bereichen hinter den zuerst öffnenden Klappen (3) befindet, sein maximales Füllvolumen eingenommen hat und der Druck innerhalb des sich dezentral öffnenden Airbags sich weiterhin aufbaut, werden die steiferen (festeren) Reißnähte (5) jetzt aufgerissen, wodurch weiteres Gewebe durch die sich dann öffnende(n) Klappe(n) zum Aufblasen freigegeben wird. Dieser Vorgang läßt sich in Abhängigkeit von der Anzahl der Öffnungsklappen in seiner Häufigkeit variieren und führt damit ein sequentielles (stufiges) Aufblasen des Airbags herbei. Der Airbag nimmt dann seine endgültige Form ein, bevor der Insasse in den aufgeblasenen Sack eintaucht.After the weaker tear seams (4,8) have opened, the fabric located in the areas behind the flaps (3) that open first has reached its maximum filling volume and the pressure within the decentrally opening airbag continues to build up, the stiffer (firmer) tear seams (5) are now torn open, whereby further fabric is released for inflation through the flap(s) that then open. The frequency of this process can be varied depending on the number of opening flaps and thus leads to a sequential (step-by-step) inflation of the airbag. The airbag then takes on its final shape before the occupant dives into the inflated bag.
Gebrauchsmuster "Airbagöffnungs- und jentföftnngsrpecJignfejTiu^'·. &bgr; # · · Seite A Utility model "Airbag opening and jentföftnngsrpecJignfejTiu^'·. &bgr;# · · Page A
Durch die Größe und Lage der Öffnungen im Prallpolster läßt sich das dezentrale Aufblasverhalten zusätzlich steuern.The size and position of the openings in the impact cushion allow the decentralized inflation behavior to be additionally controlled.
Die gleiche Vorgehensweise läßt sich auf den Beifahrerairbag (Fig. 3) oder auf den Seitenairbag (Fig. 4) anwenden.The same procedure can be applied to the passenger airbag (Fig. 3) or to the side airbag (Fig. 4).
Für den Beifahrerairbag lassen sich Aufblasverhalten und spezielle Gewebekinematiken realisieren, welche z.B. bei rückwärtsgerichteten Kinderrückhaltesystemen oder in speziellen OOP-Situationen geringere kinetische Energien auf die zu schützenden Insassen überträgt.Inflation behavior and special fabric kinematics can be implemented for the passenger airbag, which, for example, transfers lower kinetic energies to the occupants to be protected in rear-facing child restraint systems or in special OOP situations.
Beim Seitenairbag lassen sich so die unterschiedlichen Einsatzzeiten für den Bereich des Thorax-und des Kopfairbags darstellen.With the side airbag, the different deployment times for the thorax and head airbag areas can be shown.
Geb&tgr;a&ugr;chs&tgr;&tgr;&igr;\^Sle&tgr;"WIteagöffnungs-und-g&iacgr;ltf&iacgr;&igr;lUl&iacgr;1gsnrvachafU5mus'i« .. SeiteFees &tgr;a&ugr;chs&tgr;&tgr;&igr;\^Sle&tgr;"WIteagöffnungs-und-g&iacgr;ltf&iacgr;&igr;lUl&iacgr;1gsnrvachafU5mus'i« .. Page
Ingenieurbüro für Fahrzeugsicherheft C$ätoe[dt Ijuttf&.F^sffwejiajlee, 59,16562 Bergfelde Engineering office for vehicle safety C$ätoe[d t Ijuttf& . F^sffwe j iajlee , 59,16562 Bergfelde
Airbagöffnungs- und -entfaltungsmechanismus, welcher die kinetische Energie des sich aufblasenden Airbags in Verbindung mit einer speziellen Faltungsgeometrie dazu nutzt, den Airbag gezielt dezentral und richtungsgesteuert zu öffnen.Airbag opening and deployment mechanism which uses the kinetic energy of the inflating airbag in conjunction with a special folding geometry to open the airbag in a targeted, decentralized and directionally controlled manner.
Die Erfindung kann z.B. im Bereich der Fahrzeugsicherheit im Bereich Airbags etc. Anwendung finden.The invention can be used, for example, in the field of vehicle safety in the area of airbags, etc.
- Airbag- Airbag
- Airbag mit integriertem Prallpolster- Airbag with integrated impact pad
- Abdeckklappen für Airbags- Cover flaps for airbags
- Airbagfaltungen- Airbag folding
- Reißkanten
Deformationsmateriaiien- Tear edges
Deformation materials
Ziel der Erfindung äst es, den Airbag so aufblasen zu lassen, daß direkt vor dem Airbag befindliche Körperteile durch ein möglichst diffuses und dezentrales Aufblasverhalten des Airbags vor zu hoher Energieeinleitung geschützt und damit die Schutzwirkung bekannter Systeme übertroffen wird.The aim of the invention is to inflate the airbag in such a way that body parts located directly in front of the airbag are protected from excessive energy introduction by the airbag inflating in a manner that is as diffuse and decentralized as possible, thus surpassing the protective effect of known systems.
Ausgehend vom Ziel der Erfindung besteht die Aufgabe darin, das Aufblasen des Airbags durch die darüber befindliche Abdeckklappe und eine Öffnungskiappen-orientierte Faltung des Airbaggewebes zu steuern und damit die sogenannte Out-of-Position-Problematik (OOP) zu minimieren und vor Verletzungen der Arme durch den herausschießenden Airbag, wie dies heute übliche Systeme verursachen können, zu schützen.Based on the aim of the invention, the task is to control the inflation of the airbag through the cover flap located above it and an opening flap-oriented folding of the airbag fabric and thus to minimize the so-called out-of-position problem (OOP) and to protect against injuries to the arms caused by the airbag shooting out, as can be caused by today's common systems.
Gebrauchsmuster "Airbagöffnungs- und »Örttf41tflrtgsna65tiar1ftinu^'··. ,·* Seite Utility model "Airbag opening and »Örttf41tflrtgsna65tiar1ftinu^'··. ,·* Page
Fig. 1; Schematische Darstellung eines LenkradesFig. 1; Schematic representation of a steering wheel
Fig. 2: Schematische Darstellung eines Lenkrades mit teilgeöffnetem Airbag und Klappen Fig. 3: Schematische Darstellung eines Beifahrerairbags mit teilgeöffnetem Airbag und KlappenFig. 2: Schematic representation of a steering wheel with partially opened airbag and flaps Fig. 3: Schematic representation of a passenger airbag with partially opened airbag and flaps
1 Öffnungsklappen1 opening flaps
2 Lenkradspeiche2 steering wheel spokes
3 Öffnungsklappen3 opening flaps
4 Reißnaht4 tear seam
5 Reißnaht5 Tear seam
6 Lenkradkranz6 Steering wheel rim
7 Airbaggewebe7 Airbag fabric
8 Reiznaht8 irritation suture
9 Ausblasöffnungen9 exhaust openings
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29616682U DE29616682U1 (en) | 1996-09-25 | 1996-09-25 | Airbag opening and deployment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29616682U DE29616682U1 (en) | 1996-09-25 | 1996-09-25 | Airbag opening and deployment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29616682U1 true DE29616682U1 (en) | 1997-01-16 |
Family
ID=8029697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29616682U Expired - Lifetime DE29616682U1 (en) | 1996-09-25 | 1996-09-25 | Airbag opening and deployment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29616682U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000015468A1 (en) * | 1998-09-15 | 2000-03-23 | Petri Ag | Airbag module with a multistage gas generator |
-
1996
- 1996-09-25 DE DE29616682U patent/DE29616682U1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000015468A1 (en) * | 1998-09-15 | 2000-03-23 | Petri Ag | Airbag module with a multistage gas generator |
| US6488309B1 (en) | 1998-09-15 | 2002-12-03 | Takata-Petri Ag | Airbag module with a multistage gas generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R086 | Non-binding declaration of licensing interest | ||
| R207 | Utility model specification |
Effective date: 19970227 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20000701 |