WO2006015779A1 - Airbagmodul zum schutz eines kraftfahrzeuginsassen - Google Patents
Airbagmodul zum schutz eines kraftfahrzeuginsassen Download PDFInfo
- Publication number
- WO2006015779A1 WO2006015779A1 PCT/EP2005/008399 EP2005008399W WO2006015779A1 WO 2006015779 A1 WO2006015779 A1 WO 2006015779A1 EP 2005008399 W EP2005008399 W EP 2005008399W WO 2006015779 A1 WO2006015779 A1 WO 2006015779A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- airbag module
- gas generator
- airbag
- module according
- 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.)
- Ceased
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
- B60R21/2334—Expansion control features
- B60R21/2346—Soft diffusers
-
- 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
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23123—Heat protection panels
-
- 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
- B60R2021/23316—Inner seams, e.g. creating separate compartments or used as tethering 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
- B60R21/02—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
- B60R2021/23332—Inner walls crating separate compartments, e.g. communicating with vents using independent bags, one within the other
Definitions
- Airbag module for the protection of a motor vehicle occupant
- the invention relates to an airbag module for protecting a motor vehicle occupant according to the preamble of patent claim 1.
- Safety systems are known which are intended to protect a person sitting in a motor vehicle against injury in the event of a sudden deceleration of the travel movement, since the person sitting in the vehicle is against the deceleration movement against an in-vehicle base, for example the instrument panel. the front seat, the side wall, etc., is flung ge. Without the said safety systems, this often leads to serious injuries to the vehicle occupant or passengers, since then there is no sufficient protection, in particular of the head and the thorax of the vehicle occupant.
- an airbag device comprises an inflatable airbag which is accommodated, for example, in the steering wheel hub cover, in the dashboard and / or in the sidewall lining of the motor vehicle.
- an acceleration sensor activates a gas generator, which is ignited within a very short time and inflates the gas bag with filling gas.
- the cover or panel travels to a defined location and clears the way for the gas bag filling with gas. The affected person then dives into the gas bag, whereby the load resulting from the sudden deceleration of the vehicle movement is considerably reduced.
- US Pat. No. 4,966,388 discloses an airbag device for a vehicle, in which an airbag is secured in a side door, laterally from a vehicle interior. is arranged, wherein the gas bag is inflated by a gas generator when a side collision occurs, so that the inflated airbag occupies a space between the side door of the vehicle and the vehicle occupant.
- a disadvantage of these airbag systems is that the gas emerging from the gas generator is very hot, so that it can damage the gas bag or even ignite it and injure the vehicle occupant.
- US Pat. No. 6,419,266 B1 discloses a flameproof device for an airbag module, in which the gas bag is initially connected to the gas generator.
- the device also includes a deflector for receiving and deflecting the hot gases of the gas generator.
- This deflector consists of a single expandable metal band, which is arranged between the gas generator and the gas bag.
- This metal strip has a tubular shape with a closed shell circumference.
- the invention has for its object to provide an airbag module of the type mentioned, which is largely non-flammable and also still easy and inexpensive to produce and assemble.
- the invention is based on the finding that the heat arising from the gas generator during the sudden discharge of the gas can damage the gas bag and injure the vehicle occupant, and thus the resulting heat must be effectively absorbed before it reaches the gas bag.
- the object is achieved according to the features of the main claim by an airbag module, wherein the expandable Gasablenkvorrich ⁇ device is formed as a deformable band, which has a Spi ⁇ ralform in cross-section, with the radial ends of the band cover each other in the deactivated state of the gas generator ,
- the deformable band has no closed tube shape, since the free longitudinal edges of the band overlap.
- the band serving as the deflector for the gas exiting the gas generator can be more easily manufactured and assembled.
- the spiral shape can also be realized with two circumferentially overlapping cylinder segments.
- the deformable band surrounds the gas generator placed in the gas bag in Vietnameseakti- fourth state of the airbag module or the gas generator circumferentially, so that the free longitudinal edges, so seen in cross section, cover the radial ends of the tape.
- the deformable band is designed such that when Akti ⁇ demoen the gas generator, the escaping gas for inflating the airbag unfolds the spiral shape of the deformable band and this band applies under the pressure of the gas to the inner walls of the airbag.
- the free longitudinal edges of the deformable strip clap away from the gas generator and toward the gas bag, the diameter of the spiral shape being extended.
- the deformable band preferably consists of a flexible and heat-resistant plastic or metal material
- the gas which is hot by the ignition in the gas generator initially strikes the band, which absorbs part of the heat and energy of the gas. So extremely hot gas can be subsequently no longer be conveyed into the gas bag to be inflated. As a result, damage to the gas bag and a risk of injury to the vehicle occupant to be protected are avoided, in particular by the action of heat.
- a further gas bag can be arranged between the deformable band and the gas bag, which is fluidically connected to the outer gas bag and the gas generator.
- the deformable strip opens until it attaches to the inner walls of the inner airbag. In this case, further heat energy is absorbed by the inner gas bag and the heat effect of the gas is reduced immediately after it leaves the gas generator.
- the circumference of the deformable band is limited by its dimension itself and / or by the walls of the surrounding airbag.
- the deformable band may have at least one gas discharge opening on the circumferential side. This is particularly useful in dispensing with another inner gas bag, e.g. in the case of so-called curtain-type window airbags, in which the gas is to escape into the gas bag quickly and with as large an area as possible.
- Such a gas bag of a window airbag can also have, for example, at least one seam directed toward the circumference of the deformable band. This then serves for the defined limitation of the expansion of the deformable band after activation of the gas generator. Finally, it is provided that the gas generator, the gas bag or the gas bags and the deformable band are firmly connected mitein ⁇ at least at one point.
- the airbag module itself is fastened, for example, to a roof or window sill, in a steering wheel pot or the instrument panel of the motor vehicle.
- FIG. 1 is a schematic side view of the airbag module according to the invention, arranged in a motor vehicle, in a first embodiment with an outer and an inner airbag
- FIG. 2 is a cross-sectional view of the airbag module according to FIG. 1
- FIG. 3 is a schematic side view of the invention Airbag module in a second embodiment with only one Gas ⁇ sack.
- the airbag module 1 shown in FIG. 1 is fixed to a base, for example a side window railing 2 of a motor vehicle, by means of fastening elements 3 known per se, such as stud bolts and fastening screws. Furthermore, the airbag module 1 comprises an outer gas bag 4 and a smaller inner gas bag 5 made of textile fabric placed therein.
- the inner gas bag 5 encloses an expandable gas deflecting device 6, which is designed as a deformable belt 7.
- the gas deflector 6 in turn surrounds a gas generator 8, which has a plurality of circumferentially distributed gas outlet openings 9.
- the deformable band 7 consists of a flexible and heat-resistant plastic or metal material and has a, seen in cross-section, spiral shape of FIG. 2, wherein the radial ends of the belt 7 in deak ⁇ tivated state of the gas generator 8 each other radially and axially cover.
- the gas generator 8 Upon activation of the gas generator 8, the escaping gas deploys the spiral shape of the deformable belt 7 and, under the pressure of the gas, assumes the shape and position shown in FIG. 2 by the dot-and-dash line.
- the gas also flows out via the radial ends of the band 7.
- the unfolded band 7 bears against the inner wall of the inner gas bag 5, which is now inflated in the manner of impact.
- the circumference of the deformable band 7 is therefore limited by the walls of the surrounding inner airbag 5. If the inner gas bag 5 have a larger volume, the widening circumference of the deformable band 7 is itself limited by its extent.
- the still pressurized gas continues to flow through the gas passage openings 10, shown schematically on the inner gas bag 5, into the interior of the outer gas bag 4 and also inflates it abruptly. This state of the airbag module is shown in FIG.
- only one gas bag 4 is present, which is designed here as a side airbag.
- the gas bag 4 and the gas generator 8 are connected by means of screw 13 and a mounting clamp 14 with the container of the airbag device, which is fixed to the 9.povbrüstst 2 of the motor vehicle, or directly connected to the side window railing 2.
- a window airbag attachment of the See gas bag 4 and the gas generator vorzu ⁇ on the roof frame of the vehicle In a training as a window airbag attachment of the See gas bag 4 and the gas generator vorzu ⁇ on the roof frame of the vehicle.
- the gas generator 8 is at least partially wrapped by the deformable band 7, and indeed in a similar manner, as illustrated in FIG. 2 and explained above.
- the band 7 has on the circumference at least one gas outlet opening 15 for the passage of the gas flowing from the gas generator 8 into the gas bag 4.
- the gas bag 4 has two mutually spaced T-shaped seams 16. When unfolding the spiral-shaped band 7, its circumference expands until it reaches the T-shaped seams 16. Then, the gas which continues to flow out at the radial ends and the gas discharge opening 15 from the gas generator 8 ensures complete inflation of the gas bag 4.
- the gas generator 8 can be arranged within the space which the spiral band 7 spans. According to the embodiment shown in Figure 3, this gas generator may be partially disposed within this space. However, it is also possible a third embodiment, according to which the gas generator 8 is arranged completely outside the belt 7 and the gas bag. In this case, the gas generator has a connecting piece or is verbun ⁇ with a gas lance, which directs the gas from the gas generator into the interior of the spanned by the spiralför ⁇ shaped band 7 space. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/659,711 US7669886B2 (en) | 2004-08-07 | 2005-08-03 | Airbag module for protection of a vehicle occupant |
| JP2007524271A JP4494469B2 (ja) | 2004-08-07 | 2005-08-03 | 車両乗員の保護用エアバッグ・モジュール |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004038459A DE102004038459B4 (de) | 2004-08-07 | 2004-08-07 | Airbagmodul zum Schutz eines Kraftfahrzeuginsassen |
| DE102004038459.2 | 2004-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006015779A1 true WO2006015779A1 (de) | 2006-02-16 |
Family
ID=35355533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/008399 Ceased WO2006015779A1 (de) | 2004-08-07 | 2005-08-03 | Airbagmodul zum schutz eines kraftfahrzeuginsassen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7669886B2 (de) |
| JP (1) | JP4494469B2 (de) |
| DE (1) | DE102004038459B4 (de) |
| WO (1) | WO2006015779A1 (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005008847U1 (de) * | 2005-06-03 | 2005-10-06 | Autoliv Development Ab | Gasgeneratoreinheit |
| US7837227B2 (en) * | 2006-06-16 | 2010-11-23 | Autoliv Development Ab | Air-bag housing |
| DE202007015431U1 (de) | 2007-10-30 | 2008-12-24 | Takata-Petri Ag | Airbageinrichtung zum Schutz eines Fahrzeuginsassen |
| DE102008026795A1 (de) | 2008-06-02 | 2009-12-10 | Takata-Petri Ag | Airbagmodul |
| DE102009036800A1 (de) | 2008-08-12 | 2010-02-18 | Dalphimetal España S.A. | Gassackmodul mit Gasverteilungselement |
| US8408582B2 (en) * | 2010-06-23 | 2013-04-02 | Autoliv Asp, Inc. | Inflatable airbag assemblies with heat shields |
| DE102010026745B4 (de) * | 2010-07-09 | 2020-07-09 | Autoliv Development Ab | Gasgeneratoreinheit |
| US8820784B1 (en) * | 2010-09-23 | 2014-09-02 | Tk Holdings Inc. | Gas deflector for gas generating system |
| EP3744427B1 (de) * | 2012-02-06 | 2026-01-28 | Basf Se | Verfahren und vorrichtung zur behandlung von gasströmen mit stickstoffoxiden |
| JP5969792B2 (ja) * | 2012-03-30 | 2016-08-17 | タカタ株式会社 | 頭部保護エアバッグの組付方法 |
| US8622422B1 (en) * | 2012-09-11 | 2014-01-07 | Key Safety Systems, Inc. | Airbag assembly with heat shield |
| US9033363B2 (en) | 2013-03-15 | 2015-05-19 | Autoliv Asp, Inc. | Airbag assemblies with heat shield deflectors |
| DE102013011091A1 (de) * | 2013-07-03 | 2015-01-22 | Trw Automotive Gmbh | Gassackmodul |
| KR102440403B1 (ko) * | 2015-09-09 | 2022-09-05 | 현대모비스 주식회사 | 무릎 에어백 장치 및 무릎 에어백 장치의 제조방법 |
| DE102022100934A1 (de) | 2022-01-17 | 2023-07-20 | Zf Automotive Germany Gmbh | Beingassack, Fahrzeug und Fahrzeugsitz |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2225291A (en) * | 1988-07-13 | 1990-05-30 | Gen Engineering | Crash restraint bags for vehicles |
| US4944527A (en) * | 1989-08-31 | 1990-07-31 | Allied-Signal Inc. | Integral retainer, heat shield and assembly |
| EP0790154A1 (de) * | 1996-02-15 | 1997-08-20 | Trw Vehicle Safety Systems Inc. | Seitenaufprall-Luftsackmodul |
| US5893578A (en) * | 1996-07-23 | 1999-04-13 | Trw Occupant Restraint Systems Gmbh | Gas bag module for a vehicle occupant restraining system |
| JP2000211465A (ja) * | 1999-01-20 | 2000-08-02 | Toyo Tire & Rubber Co Ltd | 車両用エアバッグ装置 |
| US6419266B1 (en) * | 1999-04-20 | 2002-07-16 | Livbag Snc | Protective assembly fitted with an expanding external deflector |
| US6467805B1 (en) * | 1996-06-21 | 2002-10-22 | Takata-Petri Ag | Device for influencing the inflow of gas into the gas bag of an air bag module |
| US20030094799A1 (en) * | 2001-11-19 | 2003-05-22 | Smith Bradley W. | Airbag inflator diffuser system and method of manufacture |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4178017A (en) * | 1974-11-20 | 1979-12-11 | Nissan Motor Company, Limited | Safety bag inflation apparatus with extendible guard member against contact of bag with heated gas generator |
| JPH0694259B2 (ja) * | 1987-11-26 | 1994-11-24 | 株式会社クボタ | 移動農機の伝動構造 |
| US4966388A (en) * | 1989-05-25 | 1990-10-30 | Collision Safety Engineering Inc. | Inflatable structures for side impact crash protection |
| JP3017382U (ja) * | 1994-05-26 | 1995-10-24 | モートン インターナショナル,インコーポレイティド | 自動車エアバッグクッション部材用頭布状熱遮蔽具 |
| JPH0986333A (ja) * | 1995-09-22 | 1997-03-31 | Toyo Tire & Rubber Co Ltd | 車両用エアバッグ装置 |
| JP3634347B2 (ja) * | 1996-04-30 | 2005-03-30 | スズキ株式会社 | エアバッグ構造 |
| DE29721678U1 (de) * | 1997-11-26 | 1998-02-05 | Petri Ag | Vorrichtung zur Beeinflussung der Entfaltung eines Gassacks eines Airbagmoduls |
| US20020033590A1 (en) * | 2000-03-15 | 2002-03-21 | Rick Adkisson | Air bag diffusion device |
| DE202004000801U1 (de) * | 2004-01-20 | 2004-05-27 | Trw Airbag Systems Gmbh | Vorrichtung zum Betätigen eines Fahrzeugsicherheitssystems |
| US7370884B2 (en) * | 2004-03-02 | 2008-05-13 | Autoliv Asp, Inc. | Expanding airbag inflator housing |
-
2004
- 2004-08-07 DE DE102004038459A patent/DE102004038459B4/de not_active Expired - Fee Related
-
2005
- 2005-08-03 JP JP2007524271A patent/JP4494469B2/ja not_active Expired - Fee Related
- 2005-08-03 WO PCT/EP2005/008399 patent/WO2006015779A1/de not_active Ceased
- 2005-08-03 US US11/659,711 patent/US7669886B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2225291A (en) * | 1988-07-13 | 1990-05-30 | Gen Engineering | Crash restraint bags for vehicles |
| US4944527A (en) * | 1989-08-31 | 1990-07-31 | Allied-Signal Inc. | Integral retainer, heat shield and assembly |
| EP0790154A1 (de) * | 1996-02-15 | 1997-08-20 | Trw Vehicle Safety Systems Inc. | Seitenaufprall-Luftsackmodul |
| US6467805B1 (en) * | 1996-06-21 | 2002-10-22 | Takata-Petri Ag | Device for influencing the inflow of gas into the gas bag of an air bag module |
| US5893578A (en) * | 1996-07-23 | 1999-04-13 | Trw Occupant Restraint Systems Gmbh | Gas bag module for a vehicle occupant restraining system |
| JP2000211465A (ja) * | 1999-01-20 | 2000-08-02 | Toyo Tire & Rubber Co Ltd | 車両用エアバッグ装置 |
| US6419266B1 (en) * | 1999-04-20 | 2002-07-16 | Livbag Snc | Protective assembly fitted with an expanding external deflector |
| US20030094799A1 (en) * | 2001-11-19 | 2003-05-22 | Smith Bradley W. | Airbag inflator diffuser system and method of manufacture |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080238059A1 (en) | 2008-10-02 |
| DE102004038459A1 (de) | 2006-03-16 |
| US7669886B2 (en) | 2010-03-02 |
| DE102004038459B4 (de) | 2008-03-20 |
| JP2008509033A (ja) | 2008-03-27 |
| JP4494469B2 (ja) | 2010-06-30 |
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