DE202006005872U1 - Knee protecting airbag arrangement, comprising upper and lower bag filled successively - Google Patents
Knee protecting airbag arrangement, comprising upper and lower bag filled successively Download PDFInfo
- Publication number
- DE202006005872U1 DE202006005872U1 DE200620005872 DE202006005872U DE202006005872U1 DE 202006005872 U1 DE202006005872 U1 DE 202006005872U1 DE 200620005872 DE200620005872 DE 200620005872 DE 202006005872 U DE202006005872 U DE 202006005872U DE 202006005872 U1 DE202006005872 U1 DE 202006005872U1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- protection device
- knee
- gas bag
- chamber
- 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
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
-
- 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
- B60R2021/23169—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for knee protection
-
- 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
- B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft eine Knieschutzeinrichtung nach dem Oberbegriff des Anspruchs 1.The The invention relates to a knee protection device according to the preamble of claim 1.
Solche zumeist als Knie-Airbag bezeichneten Knieschutzeinrichtung sind in der Technik bekannt. Ein solcher Knie-Airbag dient gemeinsam mit einem im Lenkrad bzw. im Bereich des Handschuhfachs untergebrachten Front-Airbag dem Schutz des ihm zugeordneten Insassen im Falle eines Frontalcrashs. Hierbei hat der Knie-Airbag zwei Aufgaben: Zum einen soll er verhindern, dass der Knie/Schienbeinbereich des Insassen in Kontakt mit der Innenstruktur des Fahrzeugs kommt. Weiterhin soll er in Zusammenarbeit mit dem Gurtsystem dafür sorgen, dass sich der Insasse nicht zu weit aus seinem Sitz herausbewegt. Hierzu blasen sich ein oder mehrere Gassäcke im Bedarfsfall vor den Knien und Schienbeinen des Insassen auf und bremsen deren in Fahrtrichtung gehende Bewegung.Such are mostly referred to as knee airbag knee protection device known in the art. Such a knee airbag serves together with a housed in the steering wheel or in the area of the glove box Front airbag protecting the assigned occupant in the event of a Frontal crash. Here, the knee airbag has two tasks: First It should prevent the knee / shin area of the occupant comes in contact with the interior structure of the vehicle. Farther he should work in conjunction with the belt system to ensure that the inmate not too far out of his seat. This is what bubbles in or more gas bags if necessary, in front of the knees and shins of the occupant brake their movement in the direction of travel.
Es hat sich gezeigt, dass die Belastung des Insassen dadurch minimiert werden kann, dass das Knieairbagsystem so ausgestaltet ist, dass der Großteil der Krafteinleitung im Bereich des Knies erfolgt und der Bereich der Schienbeine dadurch möglichst stark entlastet wird.It has been shown to minimize the burden on the occupant can be that the knee airbag system is designed so that the majority the force is applied in the area of the knee and the area the shins as strong as possible is relieved.
Aus
der
Durch
die in der
Hiervon ausgehend ist es Aufgabe der Erfindung, eine gattungsgemäße Knieschutzeinrichtung dahingehend weiterzubilden, dass ein weiter verbesserter Schutz des Insassen erreicht werden kann.Of these, Based on the object of the invention, a generic knee protection device to that effect to further develop that further improved protection of the occupant can be achieved.
Diese Aufgabe wird durch eine Knieschutzeinrichtung mit den Merkmalen des Anspruchs 1 gelöst.These Task is by a knee protection device with the features of claim 1.
Die erfindungsgemäße Knieschutzeinrichtung geht von der Überlegung aus, dass es, auch im Gesamtzusammenhang mit den weiteren sich im Fahrzeug befindenden Rückhalteeinrichtungen, günstiger sein kann, die Vorverlagerung des Kniebereichs des Insassen zu einem möglichst frühen Zeitpunkt zu unterbinden, anstatt eine Vorwärtsbewegung zu einem späteren Zeitpunkt stark abbremsen zu müssen.The Knee protection device according to the invention goes from consideration from that, even in the overall context with the others in the vehicle located retaining devices, cheaper can be, the forward displacement of the knee area of the occupant to one preferably early Time to stop, rather than a forward motion at a later date to slow down hard.
Um das gewünschte Ziel zu erreichen, weist die erfindungsgemäße Knieschutzeinrichtung einen Gassack mit zwei im wesentlichen übereinander liegenden Kammern auf, wobei die obere Kammer im eingebauten Zustand im wesentlichen den Knien eines Insassen und die untere Kammer im wesentlichen dem Schienbeinbereich zugeordnet ist. Die beiden Kammern sind mittels wenigstens einer Überströmöffnung miteinander verbunden. Die Einlassöffnung ist der oberen Kammer zugeordnet, so dass sich auch der Gasgenerator im oberen Bereich des Gassacks befindet. Der Gassack wird also von oben befüllt. Die Überströmöffnungen sind so ausgelegt, dass bis zum Erreichen eines einheitlichen Drucks das Füllen der unteren Kammer mit einer gewissen Zeitverzögerung gegenüber der oberen Kammer geschieht. Durch diese Anordnung wird in der oberen Kammer sehr schnell ein entsprechender Arbeitsdruck erreicht, bzw. ist der Druck in der oberen Kammer anfangs höher als nach dem anschließend erfolgenden Druckausgleich. Dies hat zur Folge, dass die Positionierung des oberen Teils des Gassacks wesentlich schneller erfolgt, als wenn auf die erfindungsgemäße Ausführung verzichtet wird. Weiterhin wird durch den hohen Anfangs-Innendruck der oberen Kammer die Rückhaltekraft für mittelgroße bis große Personen erhöht. Die Kombination aus anfänglich höherer Rückhaltekraft und zeitlich sehr früher Positionierung hat zur Folge, dass der Insasse zu einem frühen Zeitpunkt zurückgehalten wird, so dass er bezogen auf das Fahrzeug eine wesentlich geringere kinetische Energie aufbaut. Somit ist es möglich, mit deutlich geringeren Rückhaltekräften, welche natürlich schonend für den Insassen sind, eine gute Rückhaltewirkung zu erzielen.Around the wished To achieve the goal, the knee protection device according to the invention has an airbag with two essentially one above the other lying on the chambers, the upper chamber in the installed state essentially the knees of an occupant and the lower chamber in the essentially associated with the tibial region. The two chambers are by means of at least one overflow with each other connected. The inlet opening is assigned to the upper chamber, so that also the gas generator located in the upper part of the airbag. The gas bag is thus of filled at the top. The overflow openings are designed so that until a uniform pressure is achieved To fill the lower chamber with a certain time delay over the upper chamber happens. By this arrangement is in the upper chamber very quickly a corresponding working pressure is reached, or is the pressure in the upper chamber initially higher than after the subsequent Pressure compensation. As a result, the positioning of the upper part of the gas bag is much faster than when waived the execution of the invention becomes. Furthermore, due to the high initial internal pressure of the upper Chamber the retention force for medium to large persons elevated. The combination of initial higher Retention force and in time much earlier Positioning has the consequence that the inmate at an early date retained so that it's a lot less relative to the vehicle builds kinetic energy. Thus, it is possible with much lower Retention forces, which Naturally gentle on the inmates are a good retention effect to achieve.
Die Erfindung wird nun anhand eines Ausführungsbeispiels mit Bezug auf die Figuren näher erläutert. Es zeigen:The invention will now be described with reference to an off guiding example with reference to the figures explained in more detail. Show it:
Die Überströmöffnung
Wie
man anhand
Nachdem
die obere Kammer
- 1010
- Gasgeneratorinflator
- 2020
- Gassackairbag
- 2222
- obere Kammerupper chamber
- 22a22a
- obere Prallflächeupper baffle
- 2323
- Einlassöffnunginlet port
- 2525
- Trennwandpartition wall
- 2626
- Überströmöffnungoverflow
- 2828
- untere Kammerlower chamber
- 28a28a
- untere Prallflächelower baffle
- 2929
- Ausströmöffnungoutflow
- FF
- FahrzeuginnenstrukturVehicle interior structure
- BB
- Beinleg
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620005872 DE202006005872U1 (en) | 2006-04-11 | 2006-04-11 | Knee protecting airbag arrangement, comprising upper and lower bag filled successively |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620005872 DE202006005872U1 (en) | 2006-04-11 | 2006-04-11 | Knee protecting airbag arrangement, comprising upper and lower bag filled successively |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202006005872U1 true DE202006005872U1 (en) | 2006-06-08 |
Family
ID=36600109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200620005872 Expired - Lifetime DE202006005872U1 (en) | 2006-04-11 | 2006-04-11 | Knee protecting airbag arrangement, comprising upper and lower bag filled successively |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202006005872U1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008029655A1 (en) | 2008-06-24 | 2009-12-31 | Autoliv Development Ab | Knee protection device for passenger of vehicle, has one-way valve permitting flow of expansion gas into upper clamp arrangement and blocking reverse flow of expansion gas from upper clamp arrangement to lower clamp arrangement |
DE102009050384A1 (en) | 2009-10-22 | 2011-04-28 | Autoliv Development Ab | guard |
US20120049491A1 (en) * | 2009-05-06 | 2012-03-01 | Autoliv Developemenmt Ab | Airbag module |
US9469271B2 (en) | 2013-02-27 | 2016-10-18 | Autoliv Development Ab | Knee airbag |
US9475445B2 (en) | 2014-08-25 | 2016-10-25 | Ford Global Technologies, Llc | Vehicle airbag appendage |
WO2020148419A1 (en) * | 2019-01-18 | 2020-07-23 | Zf Automotive Germany Gmbh | Knee airbag module |
-
2006
- 2006-04-11 DE DE200620005872 patent/DE202006005872U1/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008029655A1 (en) | 2008-06-24 | 2009-12-31 | Autoliv Development Ab | Knee protection device for passenger of vehicle, has one-way valve permitting flow of expansion gas into upper clamp arrangement and blocking reverse flow of expansion gas from upper clamp arrangement to lower clamp arrangement |
DE102008029655B4 (en) * | 2008-06-24 | 2020-04-02 | Autoliv Development Ab | Knee protection device |
EP2427352A4 (en) * | 2009-05-06 | 2012-10-17 | Autoliv Dev | Airbag module |
US20120049491A1 (en) * | 2009-05-06 | 2012-03-01 | Autoliv Developemenmt Ab | Airbag module |
EP2427352A2 (en) * | 2009-05-06 | 2012-03-14 | Autoliv Development AB | Airbag module |
CN102414050A (en) * | 2009-05-06 | 2012-04-11 | 奥托立夫开发公司 | Airbag module |
US8505966B2 (en) * | 2009-05-06 | 2013-08-13 | Autoliv Development Ab | Airbag module |
CN102414050B (en) * | 2009-05-06 | 2014-11-05 | 奥托立夫开发公司 | Airbag module |
WO2011047750A1 (en) | 2009-10-22 | 2011-04-28 | Autoliv Development Ab | Apparatus for protecting the knee region of a vehicle occupant |
US8684400B2 (en) | 2009-10-22 | 2014-04-01 | Autoliv Development Ab | Apparatus for protecting the knee region of a vehicle occupant |
DE102009050384A1 (en) | 2009-10-22 | 2011-04-28 | Autoliv Development Ab | guard |
US9469271B2 (en) | 2013-02-27 | 2016-10-18 | Autoliv Development Ab | Knee airbag |
US9475445B2 (en) | 2014-08-25 | 2016-10-25 | Ford Global Technologies, Llc | Vehicle airbag appendage |
WO2020148419A1 (en) * | 2019-01-18 | 2020-07-23 | Zf Automotive Germany Gmbh | Knee airbag module |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20060713 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20090417 |
|
R151 | Term of protection extended to 8 years |
Effective date: 20120301 |
|
R152 | Term of protection extended to 10 years |
Effective date: 20140220 |
|
R071 | Expiry of right |