DE102008029655A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- DE102008029655A1 DE102008029655A1 DE102008029655A DE102008029655A DE102008029655A1 DE 102008029655 A1 DE102008029655 A1 DE 102008029655A1 DE 102008029655 A DE102008029655 A DE 102008029655A DE 102008029655 A DE102008029655 A DE 102008029655A DE 102008029655 A1 DE102008029655 A1 DE 102008029655A1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- chamber arrangement
- arrangement
- knee
- clamp arrangement
- 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.)
- Granted
Links
- 210000003127 knee Anatomy 0.000 title claims description 59
- 230000000903 blocking effect Effects 0.000 title description 2
- 239000012530 fluid Substances 0.000 claims description 3
- 230000004941 influx Effects 0.000 claims 1
- 210000005244 lower chamber Anatomy 0.000 description 25
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000035515 penetration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 210000005240 left ventricle Anatomy 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000002861 ventricular Effects 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
- B60R21/23—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft eine Knieschutzeinrichtung für Fahrzeuginsassen mit einem Gassack und einem Gasgenerator, der den Gassack mit einem Entfaltungsgas befüllt, wobei der Gassack zumindest eine obere und eine untere Kammeranordnung aufweist, die in strömungstechnischer Verbindung miteinander stehen und der Gasgenerator das Entfaltungsgas in eine Kammeranordnung einleitet.The The invention relates to a knee protection device for vehicle occupants with a gas bag and a gas generator that supplies the gas bag with a deployment gas filled, wherein the gas bag at least an upper and a lower chamber arrangement, which in fluidic Connection with each other and the gas generator, the deployment gas initiates into a chamber arrangement.
Die
Die
Die
Aufgabe der vorliegenden Erfindung ist es, eine verbesserte Knieschutzeinrichtung bereitzustellen, mit der insbesondere eine Verringerung einer Knieverschiebung bewirkt wird.task The present invention is an improved knee protector to provide, in particular, a reduction of knee displacement is effected.
Erfindungsgemäß wird diese Aufgabe durch eine Knieschutzeinrichtung mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.According to the invention this task by a knee protection device with the features of claim 1. Advantageous embodiments and Further developments of the invention are in the subclaims described.
Die erfindungsgemäße Knieschutzeinrichtung für Fahrzeuginsassen mit einem Gassack und einem Gasgenerator, der den Gassack mit einem Entfaltungsgas befüllt, wobei der Gassack zumindest eine obere und eine untere Kammeranordnung aufweist, die in strömungstechnischer Verbindung stehen und der Gasgenerator das Entfaltungsgas in eine Kammeranordnung einleitet, sieht vor, dass zwischen der oberen und der unteren Kammeranordnung ein Einwegeventil angeordnet ist, das ein Einströmen des Entfaltungsgases in die obere Kammeranordnung zulässt, ein Rückströmen von der oberen Kammeranordnung in die untere Kammeranord nung jedoch sperrt. Auf diese Weise ist es möglich, innerhalb der oberen Kammeranordnung ein separates Gassackvolumen bereitzustellen, so dass sich bei einem Eindringen des Knies in den Gassack das Kammervolumen der oberen Kammeranordnung schneller verringert als das Kammervolumen der unteren Kammeranordnung, so dass in der oberen Kammeranordnung ein deutlich schnellerer Druckanstieg als in der unteren Kammerordnung entsteht, was zu einer entsprechend größeren Gegenkraft auf das Knie führt. Dadurch ist es möglich, eine deutlich geringere Knieverschiebung zu erreichen, als dies mit einer herkömmlichen Knieschutzeinrichtung möglich wäre.The Knee protection device according to the invention Vehicle occupants with a gas bag and a gas generator driving the Gas bag filled with a deployment gas, wherein the gas bag at least one upper and one lower chamber arrangement, the in fluid communication and the gas generator initiating the deployment gas into a chamber arrangement, provides that between the upper and the lower chamber arrangement a one-way valve is arranged, which is an inflow of the deployment gas in the upper chamber arrangement allows a backflow from the upper chamber assembly in the lower Kammeranord voltage, however locks. In this way it is possible within the top Chamber arrangement to provide a separate airbag volume, so that when the knee penetrates into the gas bag, the chamber volume the upper chamber assembly reduces faster than the chamber volume the lower chamber arrangement, so that in the upper chamber arrangement a much faster increase in pressure than in the lower chamber order arises, resulting in a correspondingly greater drag leads to the knee. This makes it possible to get one to achieve significantly lower knee displacement than with a conventional Knee protection device would be possible.
Eine Weiterbildung der Erfindung sieht vor, dass der Gasgenerator das Entfaltungsgas in die untere Kammeranordnung einleitet, wodurch es möglich ist, die gesamte Knieschutzeinrichtung in den Fußraum des Fahrers oder Beifahrers anzuordnen, so dass der Bauraum optimal ausgenutzt werden kann.A Development of the invention provides that the gas generator the Deployment gas into the lower chamber assembly initiates, thereby It is possible to use the entire knee protector in the footwell To arrange the driver or passenger, so that the space optimally can be exploited.
Die obere Kammeranordnung kann zumindest zwei Kammern aufweisen, die strömungstechnisch voneinander getrennt sind. Dadurch ist es möglich, für jedes Knie eine separate Kammer bereitzustellen, so dass die Kniekräfte für jedes einzelne Knie unterschiedlich gesteuert werden können.The upper chamber assembly may have at least two chambers, the are fluidically separated from each other. This is it is possible for each knee a separate chamber provide so that the knee strength for each individual knees can be controlled differently.
Ebenfalls kann die untere Kammeranordnung zwei Kammern aufweisen, die strömungstechnisch voneinander getrennt sind, so dass neben einer separaten Steuerung der Kniekräfte auch die auf die Unterschenkel wirkenden Kräfte separat gesteuert werden können.Also For example, the lower chamber arrangement can have two chambers which are fluidic are separated, so in addition to a separate control Knee forces also those acting on the lower legs Forces can be controlled separately.
In der oberen Kammeranordnung kann zumindest eine Entlüftungsanordnung angeordnet sein, um das Entfaltungsgas kontrolliert entweichen zu lassen, wenn die Knieschutzeinrichtung nicht mehr benötigt wird, also wenn eine ausreichende Zeit nach dem Auslösen des Gasgenerators verstrichen ist.In the upper chamber arrangement can be at least one venting arrangement be arranged to escape the deployment gas in a controlled manner if the knee protection device is no longer needed will, so if sufficient time after triggering of the gas generator has elapsed.
Die obere Kammeranordnung weist in der Regel ein geringeres Volumen als die untere Kammeranordnung auf, um möglichst schnell hohe Gassackinnendrücke innerhalb der jeweiligen Kammeranordnung bzw. innerhalb der jeweiligen Kammer bereitstellen zu können, da die Verlagerungswege sehr gering sind und dementsprechend die Entfaltungszeiten möglichst kurz sein müssen.The upper chamber arrangement has in the Typically, a smaller volume than the lower chamber assembly in order to provide as quickly as possible high gas bag interior pressures within the respective chamber arrangement or within the respective chamber, since the displacement paths are very low and, accordingly, the deployment times must be as short as possible.
Nachfolgend wird ein Ausführungsbeispiel anhand der beigefügten Figuren näher erläutert. Es zeigen:following An embodiment with reference to the attached Figures explained in more detail. Show it:
In
der
In
der
In
der
In
der
Die
In
der
Darüber
hinaus hat ein System mit zwei getrennten Kammern
In
der
Die
Draufsicht gemäß
Die
Nähte
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006013287 A1 [0002] DE 102006013287 A1 [0002]
- - US 5458366 [0003] US 5458366 [0003]
- - DE 202006005872 U1 [0004] - DE 202006005872 U1 [0004]
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008029655.4A DE102008029655B4 (en) | 2008-06-24 | 2008-06-24 | Knee protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008029655.4A DE102008029655B4 (en) | 2008-06-24 | 2008-06-24 | Knee protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102008029655A1 true DE102008029655A1 (en) | 2009-12-31 |
| DE102008029655B4 DE102008029655B4 (en) | 2020-04-02 |
Family
ID=41360469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102008029655.4A Active DE102008029655B4 (en) | 2008-06-24 | 2008-06-24 | Knee protection device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008029655B4 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011131275A1 (en) | 2010-04-22 | 2011-10-27 | Autoliv Development Ab | Airbag comprising a first sidewall and a second sidewall and at least one retaining strap |
| DE102013003239A1 (en) | 2013-02-27 | 2014-08-28 | Autoliv Development Ab | knee airbag |
| WO2015123156A1 (en) * | 2014-02-11 | 2015-08-20 | Key Safety Systems Inc. | Airbag cushion assembly with one-way check valves |
| US10252689B2 (en) | 2017-08-01 | 2019-04-09 | Ford Global Technologies, Llc | Knee airbag with receiving pockets |
| CN111380442A (en) * | 2018-12-29 | 2020-07-07 | 观致汽车有限公司 | Instrument board model design checking method and instrument board model design checking system |
| WO2020148419A1 (en) * | 2019-01-18 | 2020-07-23 | Zf Automotive Germany Gmbh | Knee airbag module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458366A (en) | 1994-06-01 | 1995-10-17 | Morton International, Inc. | Compartmentalized airbag knee bolster |
| DE202006005872U1 (en) | 2006-04-11 | 2006-06-08 | Autoliv Development Ab | Knee protecting airbag arrangement, comprising upper and lower bag filled successively |
| DE102006013287A1 (en) | 2006-03-23 | 2007-09-27 | Daimlerchrysler Ag | Airbag e.g. side airbag, for use in motor vehicle, has flow channel with reverse flow safety device that allows flow of gas in passage direction, while flow of gas into blocking direction opposite to passage direction is blocked |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19707997C2 (en) * | 1997-02-27 | 2000-10-26 | Hs Tech & Design | Passenger airbag device |
| DE29807424U1 (en) * | 1998-04-23 | 1998-08-27 | Trw Repa Gmbh | Knee protection device for vehicle occupants |
| DE19946477B4 (en) * | 1999-09-28 | 2010-09-02 | Takata-Petri Ag | Airbag assembly |
| JP3912144B2 (en) * | 2001-05-21 | 2007-05-09 | タカタ株式会社 | Passenger leg protection device for passenger seat |
| EP1625980B1 (en) * | 2004-08-09 | 2008-10-15 | Nissan Motor Co., Ltd. | Vehicle occupant restraint system and method |
| JP2006240370A (en) * | 2005-03-01 | 2006-09-14 | Takata Corp | Airbag and airbag device |
-
2008
- 2008-06-24 DE DE102008029655.4A patent/DE102008029655B4/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458366A (en) | 1994-06-01 | 1995-10-17 | Morton International, Inc. | Compartmentalized airbag knee bolster |
| DE102006013287A1 (en) | 2006-03-23 | 2007-09-27 | Daimlerchrysler Ag | Airbag e.g. side airbag, for use in motor vehicle, has flow channel with reverse flow safety device that allows flow of gas in passage direction, while flow of gas into blocking direction opposite to passage direction is blocked |
| DE202006005872U1 (en) | 2006-04-11 | 2006-06-08 | Autoliv Development Ab | Knee protecting airbag arrangement, comprising upper and lower bag filled successively |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011131275A1 (en) | 2010-04-22 | 2011-10-27 | Autoliv Development Ab | Airbag comprising a first sidewall and a second sidewall and at least one retaining strap |
| DE102010018180A1 (en) | 2010-04-22 | 2011-10-27 | Autoliv Development Ab | Airbag with a first side wall and a second side wall and at least one tether |
| US8641085B2 (en) | 2010-04-22 | 2014-02-04 | Autoliv Development Ab | Airbag comprising at least a first sidewall and a second sidewall and at least one retaining strap |
| DE102010018180B4 (en) * | 2010-04-22 | 2016-12-08 | Autoliv Development Ab | Airbag with a first side wall and a second side wall and at least one tether |
| US9469271B2 (en) | 2013-02-27 | 2016-10-18 | Autoliv Development Ab | Knee airbag |
| WO2014131818A1 (en) * | 2013-02-27 | 2014-09-04 | Autoliv Development Ab | Knee airbag |
| DE102013003239A1 (en) | 2013-02-27 | 2014-08-28 | Autoliv Development Ab | knee airbag |
| DE102013003239B4 (en) | 2013-02-27 | 2019-03-21 | Autoliv Development Ab | knee airbag |
| WO2015123156A1 (en) * | 2014-02-11 | 2015-08-20 | Key Safety Systems Inc. | Airbag cushion assembly with one-way check valves |
| US20160339866A1 (en) * | 2014-02-11 | 2016-11-24 | Key Safety Systems, Inc. | Airbag Cushion Assembly with One-Way Check Valves |
| US10889260B2 (en) | 2014-02-11 | 2021-01-12 | Key Safety Systems, Inc. | Airbag cushion assembly with one-way check valves |
| US10252689B2 (en) | 2017-08-01 | 2019-04-09 | Ford Global Technologies, Llc | Knee airbag with receiving pockets |
| CN111380442A (en) * | 2018-12-29 | 2020-07-07 | 观致汽车有限公司 | Instrument board model design checking method and instrument board model design checking system |
| WO2020148419A1 (en) * | 2019-01-18 | 2020-07-23 | Zf Automotive Germany Gmbh | Knee airbag module |
| US12233811B2 (en) | 2019-01-18 | 2025-02-25 | Zf Automotive Germany Gmbh | Knee airbag module |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008029655B4 (en) | 2020-04-02 |
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| R016 | Response to examination communication | ||
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Representative=s name: GRAMM, LINS & PARTNER PATENT- UND RECHTSANWAEL, DE |
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