WO2007110167A1 - Gassack für ein kraftfahrzeug - Google Patents
Gassack für ein kraftfahrzeug Download PDFInfo
- Publication number
- WO2007110167A1 WO2007110167A1 PCT/EP2007/002383 EP2007002383W WO2007110167A1 WO 2007110167 A1 WO2007110167 A1 WO 2007110167A1 EP 2007002383 W EP2007002383 W EP 2007002383W WO 2007110167 A1 WO2007110167 A1 WO 2007110167A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow
- passage
- gas
- flow passage
- airbag
- Prior art date
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
- B60R21/239—Inflatable members characterised by their venting means
Definitions
- the invention relates to a gas bag for a motor vehicle according to the features of the preamble of patent claim 1.
- gas bags In the field of passive restraint systems, gas bags have become known, which in the event of an accident are suddenly filled with gas in order to restrain an occupant. Such airbags occur both as a driver or passenger airbag in a frontal impact as well as a window or side bag in a side impact. It is furthermore known that the internal pressure of the gas bag can be regulated by various measures in order to realize inflation with high or lower internal pressure as a function of load-relevant parameters.
- DE 101 11 566 A1 shows an airbag for a motor vehicle with an outflow opening, which in the broadest sense forms a flow passage.
- This flow passage connects two pressure chambers with each other, namely the interior of the airbag and the space around the airbag with each other.
- the gas flows from the interior of the gas bag through the flow passage into the environment.
- the flow passage is formed so that the flow cross-section as a function of the speed of the through Flow passage automatically exits outgoing gas flow.
- the flow passage comprises a backflow preventer, an uncontrolled flow back or back, especially in large gas bags can be avoided.
- the flow passage connects two pressure chambers with each other, wherein the return flow fuse allows the passage of the flow medium in the forward direction, while the flow of the flow medium in a reverse direction of the reverse direction is largely prevented.
- This has the advantage that in a pressure chamber, a higher internal pressure over a longer period is desired, this can be maintained by the return flow fuse, without allowing no flow of gas after the flow passage, a flow in the reverse direction of the reverse direction allows.
- it can thus be prevented that, if after a major impact another impact occurs, the gas can escape from one pressure chamber into the other pressure chamber.
- this is not just limited to side airbags.
- Airbags are closed, in which the inlet opening is not sealed at the gas generator.
- one of the pressure chambers may also be the environment.
- a pressure chamber may for example be a single airbag, which is inflated through an opening which closes according to the invention during the attempted outflow.
- the recoil protection can be activated by a pressure difference between the two pressure chambers.
- the size of the flow passage can be varied.
- the flow passage is formed as a flow channel.
- the flow channel connects two gas cushion with each other, wherein the first gas cushion is to have a lower internal pressure than the second gas cushion in the inflated state.
- the first gas cushion in the chest region and the second gas cushion can be arranged in a pelvic region of an occupant to be restrained.
- the flow passage is formed by two opposite walls, of which at least one is double-layered. The double layer causes a closing of the Flow passage in the reverse direction with increasing internal pressure.
- this overlap area is inflated so that the flow passage is self-sealing.
- the more gas-tight the material used in this area eg coated fabric, the better this sealing works.
- the filling of the chambers with different internal pressures can be realized for example via differently sized inflow cross sections.
- FIG. 1 shows a flow channel with a passage direction
- FIG. 2 shows a flow channel in the reverse direction
- FIG. 3 shows a plan view of the flow channel.
- FIG. 1 shows a flow channel 1 which connects two gas bags 2 and 3, which are designed as pressure chambers 4 and 5.
- the flow channel 1 is formed by two opposite walls 6 and 7, which are double-layered in a partial region which is hatched in FIG.
- the wall 6, 7 turned inside, so that a double layer 8, 9 results.
- This double layer 8, 9 is therefore with a side 8a, 9a fixed to the wall 6, 7, while the other side 8b, 9b is freely movable.
- the gas cushion 2 of the pressure chamber 4 is at the transition region between the wall 6, 7 and 8, 9 fixed to the wall 6, 7. If it now comes to the inflow of the gas according to arrow S from the pressure chamber 4 into the pressure chamber 5 via the flow channel 1, the double layers 8, 9 are pressed against the walls 6, 7.
- the gas flow can flow unhindered in the passage S into the pressure chamber 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009500753A JP2009537360A (ja) | 2007-03-17 | 2007-03-17 | 自動車用エアバッグ |
US12/293,981 US20090322062A1 (en) | 2006-03-23 | 2007-03-17 | Airbag for a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006013287A DE102006013287A1 (de) | 2006-03-23 | 2006-03-23 | Gassack für ein Kraftfahrzeug |
DE102006013287.4 | 2006-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007110167A1 true WO2007110167A1 (de) | 2007-10-04 |
Family
ID=38123842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/002383 WO2007110167A1 (de) | 2006-03-23 | 2007-03-17 | Gassack für ein kraftfahrzeug |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090322062A1 (de) |
DE (1) | DE102006013287A1 (de) |
WO (1) | WO2007110167A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009196538A (ja) * | 2008-02-22 | 2009-09-03 | Toyoda Gosei Co Ltd | 側突用エアバッグ装置 |
WO2010054754A1 (de) * | 2008-11-14 | 2010-05-20 | Daimler Ag | Luftsack mit kanalförmigem verschlusselement |
DE102009053381A1 (de) | 2009-11-14 | 2011-05-19 | Volkswagen Ag | Insassenschutzvorrichtung für ein Fahrzeug, insbesondere für ein Kraftfahrzeug, sowie Verfahren zum Steuern einer Insassenschutzvorrichtung |
EP2431238A1 (de) * | 2009-05-11 | 2012-03-21 | Toyota Jidosha Kabushiki Kaisha | Seitenairbag für fahrzeuge |
US8500159B2 (en) | 2009-01-21 | 2013-08-06 | Takata AG | Airbag for a vehicle occupant restraint system and method for producing an airbag |
US8696021B2 (en) | 2009-12-21 | 2014-04-15 | Toyota Jidosha Kabushiki Kaisha | Side airbag device and method of sewing side airbag |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008037812A1 (de) * | 2007-11-02 | 2009-06-04 | Daimler Ag | Fahrzeuginsassensicherheitssystem mit variabler Abstützung und entsprechendes Betriebsverfahren |
DE102008029655B4 (de) | 2008-06-24 | 2020-04-02 | Autoliv Development Ab | Knieschutzeinrichtung |
DE102009050384B4 (de) | 2009-10-22 | 2014-06-18 | Autoliv Development Ab | Schutzvorrichtung |
DE102011122464A1 (de) * | 2011-12-24 | 2013-06-27 | Autoliv Development Ab | Gassack mit zwei Kammern und einem Gasfluss-Kanal, wobei ein Ventil in dem Gasfluss-Kanal angeordnet ist |
US8746734B1 (en) * | 2013-02-19 | 2014-06-10 | Autoliv Asp, Inc. | Curtain airbags with isolated chambers and construction methods |
DE102013003239B4 (de) | 2013-02-27 | 2019-03-21 | Autoliv Development Ab | Knieairbag |
WO2015020052A1 (ja) | 2013-08-06 | 2015-02-12 | オートリブ ディベロップメント エービー | 車両用サイドエアバッグ装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19930157A1 (de) * | 1999-06-30 | 2001-01-04 | Takata Europ Gmbh | Luftsack für ein Kraftfahrzeug |
US20010003395A1 (en) * | 1999-12-08 | 2001-06-14 | Takata Corporation | Air bag and air bag device |
DE10111566A1 (de) | 2001-03-10 | 2002-09-19 | Daimler Chrysler Ag | Sicherheitsvorrichtung für ein Kraftfahrzeug |
US20040164526A1 (en) * | 2003-02-26 | 2004-08-26 | Takata Corporation | Airbag and airbag system |
EP1595751A1 (de) * | 2003-01-31 | 2005-11-16 | Ashimori Industry Co., Ltd. | Airbagvorrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5845935A (en) * | 1997-03-07 | 1998-12-08 | Morton International, Inc. | Side airbag module |
US7168733B2 (en) * | 2002-12-27 | 2007-01-30 | Takata Corporation | Airbag apparatus |
JP2004243976A (ja) * | 2003-02-17 | 2004-09-02 | Takata Corp | 側突用エアバッグ装置 |
US7347444B2 (en) * | 2004-05-06 | 2008-03-25 | Autoliv Asp, Inc. | Inflatable airbag with overlapping chamber |
DE102005028702A1 (de) * | 2004-06-28 | 2006-03-16 | Mazda Motor Corp. | Airbag-Vorrichtung |
CN101326079B (zh) * | 2005-12-01 | 2010-09-29 | 高田-彼得里公开股份有限公司 | 气囊系统 |
KR100716855B1 (ko) * | 2005-12-15 | 2007-05-09 | 현대모비스 주식회사 | 차량용 사이드 에어백의 쿠션. |
JP5199604B2 (ja) * | 2006-06-12 | 2013-05-15 | タカタ株式会社 | 側突用エアバッグ装置、車両用シート、インフレータのガス分配器 |
JP5070084B2 (ja) * | 2008-02-22 | 2012-11-07 | タカタ株式会社 | 側突用エアバッグ装置 |
-
2006
- 2006-03-23 DE DE102006013287A patent/DE102006013287A1/de not_active Withdrawn
-
2007
- 2007-03-17 WO PCT/EP2007/002383 patent/WO2007110167A1/de active Application Filing
- 2007-03-17 US US12/293,981 patent/US20090322062A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19930157A1 (de) * | 1999-06-30 | 2001-01-04 | Takata Europ Gmbh | Luftsack für ein Kraftfahrzeug |
US20010003395A1 (en) * | 1999-12-08 | 2001-06-14 | Takata Corporation | Air bag and air bag device |
DE10111566A1 (de) | 2001-03-10 | 2002-09-19 | Daimler Chrysler Ag | Sicherheitsvorrichtung für ein Kraftfahrzeug |
EP1595751A1 (de) * | 2003-01-31 | 2005-11-16 | Ashimori Industry Co., Ltd. | Airbagvorrichtung |
US20040164526A1 (en) * | 2003-02-26 | 2004-08-26 | Takata Corporation | Airbag and airbag system |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009196538A (ja) * | 2008-02-22 | 2009-09-03 | Toyoda Gosei Co Ltd | 側突用エアバッグ装置 |
WO2010054754A1 (de) * | 2008-11-14 | 2010-05-20 | Daimler Ag | Luftsack mit kanalförmigem verschlusselement |
US8979117B2 (en) | 2008-11-14 | 2015-03-17 | Daimler Ag | Air cushion with a channel-shaped closure element |
US8500159B2 (en) | 2009-01-21 | 2013-08-06 | Takata AG | Airbag for a vehicle occupant restraint system and method for producing an airbag |
CN102292243B (zh) * | 2009-01-21 | 2015-04-01 | 高田-彼得里公开股份有限公司 | 用于车辆乘员约束系统的气囊以及生产气囊的方法 |
EP2431238A1 (de) * | 2009-05-11 | 2012-03-21 | Toyota Jidosha Kabushiki Kaisha | Seitenairbag für fahrzeuge |
EP2431238A4 (de) * | 2009-05-11 | 2012-11-28 | Toyota Motor Co Ltd | Seitenairbag für fahrzeuge |
US8567817B2 (en) | 2009-05-11 | 2013-10-29 | Toyota Jidosha Kabushiki Kaisha | Side airbag device for vehicle |
DE102009053381A1 (de) | 2009-11-14 | 2011-05-19 | Volkswagen Ag | Insassenschutzvorrichtung für ein Fahrzeug, insbesondere für ein Kraftfahrzeug, sowie Verfahren zum Steuern einer Insassenschutzvorrichtung |
US8696021B2 (en) | 2009-12-21 | 2014-04-15 | Toyota Jidosha Kabushiki Kaisha | Side airbag device and method of sewing side airbag |
US8991859B2 (en) | 2009-12-21 | 2015-03-31 | Toyota Jidosha Kabushiki Kaisha | Side airbag device and method of sewing side airbag |
Also Published As
Publication number | Publication date |
---|---|
DE102006013287A1 (de) | 2007-09-27 |
US20090322062A1 (en) | 2009-12-31 |
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