WO2004067337A1 - Airbag - Google Patents

Airbag Download PDF

Info

Publication number
WO2004067337A1
WO2004067337A1 PCT/SE2003/001729 SE0301729W WO2004067337A1 WO 2004067337 A1 WO2004067337 A1 WO 2004067337A1 SE 0301729 W SE0301729 W SE 0301729W WO 2004067337 A1 WO2004067337 A1 WO 2004067337A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
bag
gas
support
deflector
Prior art date
Application number
PCT/SE2003/001729
Other languages
English (en)
Inventor
Yann Deligny
Martin Baillon
Original Assignee
Autoliv Development Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Autoliv Development Ab filed Critical Autoliv Development Ab
Priority to AU2003279650A priority Critical patent/AU2003279650A1/en
Publication of WO2004067337A1 publication Critical patent/WO2004067337A1/fr

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
    • B60R21/26—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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • B60R21/2171—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters
    • 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
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • 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
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23386—External tether means

Definitions

  • THE PRESENT INVENTION relates to an air-bag, and more particularly relates to an air-bag, to be mounted in a vehicle, which is to be provided with a gas generator unit mounted to supply gas to a gas inlet provided in a central region of one edge of the air-bag.
  • Air-bags of many different designs have been proposed before for use in motor vehicles, to be inflated in the event that an accident should occur to provide protection for an occupant of the vehicle.
  • the present invention relates to one particular type of air-bag, which is an air-bag having an edge portion with a gas inlet provided in a central region of the edge portion.
  • An air-bag of this type is a so-called inflatable curtain.
  • An inflatable curtain is, conventionally, initially stored within a recess or housing which extends above the side doors of the motor vehicle.
  • the inflatable curtain is inflated to extend downwardly from the roof to be located between an occupant of the vehicle and the adjacent doors.
  • the air-bag thus forms a curtain which covers the windows provided in the doors, minimising the risk of injury occurring to an occupant of the vehicle.
  • an inflatable curtain has the upper edge of the inflatable curtain secured to a recess or housing provided in the roof of the vehicle which initially accommodates the air-bag in an folded state.
  • Some types of inflatable curtain are provided with gas generators located either at the forward end, or at the rearward end of the curtain, ejecting gas into a gas flow duct which extends the whole length of the curtain and provides gas to various inflatable regions of the inflatable curtain.
  • an air-bag having a tubular gas inlet in a central part of the upper edge of the air-bag, the air-bag being provided with a gas generator and internal gas deflector, the internal gas deflector being located within the gas inlet of the air-bag, the gas generator being supported on a support element, the support element being provided with a mounting arrangement to mount the support element to a motor vehicle and spaced-apart support components engaging the gas generator, one support component encircling the neck of the air-bag and trapping the neck of the air-bag against the exterior of part of the internal gas deflector, the internal gas deflector being positioned to receive gas from the gas generator, part of the said one support forming a protector located on the exterior of the air-bag adjacent the internal gas deflector.
  • the internal gas deflector is formed of a deformable material.
  • the internal gas deflector is formed of a plastics material.
  • the gas generator has a terminal portion which extends into the internal gas deflector, the terminal portion being provided with a plurality of gas outlet apertures.
  • the mounting arrangement is a mounting plate provided with mounting elements, the mounting plate carrying a cantilevered support arm, the support arm carrying the said support components to support the gas generator.
  • each support component is in the form of a ring having a tab provided at one end thereof to be secured to a support plate by means of a bolt.
  • the protector is in the form of an inverted "U"-sectioned extension formed integrally with one said ring.
  • the internal gas deflector is in the form of an inverted channel having, at one end, depending side-walls and having, at the other end, the side- walls deflected inwardly to form a ring.
  • FIGURE 1 is a perspective exploded view illustrating a gas generator support and a gas deflector
  • FIGURE 2 is a diagrammatic view of an air-bag illustrating the gas deflector of Figure 1 in position
  • FIGURE 3 is a sectional view of a fully assembled air-bag
  • FIGURE 4 is an alternate sectional view of the fully assembled air-bag.
  • FIGURE 5 is a perspective view of an alternative gas generator support and a deflector, illustrating the gas generator in position.
  • a gas generator support 1 is configured to receive an elongate cylindrical gas generator which has a plurality of gas outlet apertures provided in a terminal region thereof.
  • the gas generator support comprises a substantially planar mounting plate 2 of "L"-shape, the plate 2 being provided with two mounting apertures 3, 4 to receive mounting bolts or the like.
  • One end of the elongate arm of the "L” is deflected to form a mounting tongue 5.
  • the mounting apertures and mounting tongue form mounting components, the components being spaced-apart so that the mounting plate 2 may be firmly mounted in position.
  • the mounting plate 2 carries a cantilevered arm 6 which extends from one side edge of the long arm "L".
  • the cantilevered arm 6 carries " a support plate 7.
  • the support plate 7 is substantially parallel to, but spaced from the plane of the mounting plate 2.
  • One end of the support plate carries a first mounting ring 8 formed integrally with the support plate 7, the ring 8 having a terminal lug 9 provided with an aperture 10 which, when the ring is in position, is co-aligned with a corresponding aperture in the support plate 7 to receive a nut and bolt to enable the ring 8 to be tightened in position.
  • the other end of the support plate 7 carries an integral mounting ring 11 and protector 12.
  • the rings 8 and 11 are spaced-apart.
  • the mounting ring 11 is again formed integrally with the support plate 7 and is provided with a terminal lug 13 having an aperture 14 which is to be co-aligned with a corresponding aperture formed in the support plate 7 to receive a nut to enable the mounting ring 11 to be tightened in position.
  • the mounting rings may engage spaced- apart regions of a cylindrical gas generator to hold the gas generator firmly in position.
  • the mounting ring 11 carries an integral protector 12 in the form of an inverted "U"-shaped projection which extends from the upper part of the mounting ring 11, in a direction away from the first mounting ring 8.
  • the gas deflector 15 comprises an inverted channel having, at one end, two spaced-apart depending side- walls 16, 17, part of the channel between the depending side-walls being closed by an upper transverse end wall 18.
  • the channel is of inverted "U"-shaped configuration.
  • At the other end of the channel a region is provided where the side- walls are curved inwardly 19, 20 to form a ring.
  • the upper-most part of the channel extends beyond the ring 19 to form a lug 21.
  • the gas deflector 15 should be inserted within a "neck" provided on an air-bag, and the combination of the inner deflector and the neck of the air-bag will be clamped by the mounting ring 11 to a terminal part of a gas generator so that a gas outlet region of the gas generator extends into the interior of the gas deflector 15, and the fabric of the neck of the air-bag is trapped sealingly between the ring 19, 20 of the deflector 15 and the mounting ring 11.
  • the lug 21 is positioned to be engaged by the mounting ring 11 to prevent the inner gas deflector 15 from moving axially.
  • Figure 2 illustrates an air-bag 30 formed of two inter-connected layers of fabric having a substantially straight upper, edge 31, that upper edge being provided with a plurality of mounting lugs 32 by means of which the air-bag may be mounted in position in a motor vehicle.
  • a central part of the upper edge 30 is provided with a protruding "L"-shaped tubular neck 33 which is the gas inlet for the air-bag.
  • a gas deflector 15 of the type disclosed above is illustrated in position within the neck 33.
  • the ring 19, 20 is at the open end of the neck.
  • the depending side-walls 16, 17 are in a region of the neck which communicates with the interior of the air-bag.
  • the side-walls 16, 17 engage with the layers of fabric to hold the layers apart to facilitate the flow of gas into the air-bag and to protect the fabric from the gas flow which may be very aggressive.
  • the neck 33 communicates with two inflatable regions 34, 35 defined within the air-bag, each of these regions being divided into a plurality of separate inflatable cells by means of seams 36 which secure together the two layers of fabric which respectively form the front and rear of the illustrated air- bag.
  • a first mounting strap 37 extends from one end of the air-bag, and may be connected to a mounting point provided, for example, on the "C"-Post of a motor vehicle.
  • a further mounting strap 38 extends from the other end of the air-bag and may extend to, for example, a mounting point provided on the "A"- Post of the motor vehicle.
  • the air-bag shown in Figure 2 is provided merely by way of example of one type of air-bag which may be utilised in conjunction with the gas generator support and gas deflector shown in Figure 1.
  • the inner deflector 15 may be formed of metal, or may be formed of a plastics material. It is preferable that the inner deflector may deform slightly under any forces applied thereto by gas emerging through the gas outlet apertures 41 provided on the gas generator 40. In this way the gas will not apply excessive force to the gas generator support 1.
  • the protector 12 prevents the inner deflector 15 from deforming excessively and also protects the fabric of the air-bag in the region of the neck 33.
  • Figure 5 illustrates an alternative embodiment of the invention in which the "L"-shaped support plate 2 is provided with a single aperture 3 to receive a bolt and two. deflected tabs 50, 51 adapted to be accommodated within corresponding apertures formed in the motor vehicle to facilitate the mounting of the arrangement in position.
  • the support plate 7 is shown supporting a cylindrical gas generator 53 which is held in place by the support rings 8 and 11.
  • the inner gas deflector 15 is illustrated, but the air-bag itself is omitted for the sake of clarity of illustration.
  • “comprises” means “includes or consists of and “comprising” means "including or consisting of.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un airbag comprenant une entrée de gaz (33) tubulaire ménagée dans une partie de bord dudit airbag, un générateur de gaz supporté sur un élément de support (1) doté d'une plaque de montage (2) permettant de monter ledit élément de support sur un véhicule motorisé et deux bagues de support (8, 11) espacées coopérant avec ledit générateur de gaz cylindrique. L'une des bagues supporte un déflecteur de gaz (15) intérieur disposé dans l'entrée de l'airbag.
PCT/SE2003/001729 2003-01-31 2003-11-10 Airbag WO2004067337A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003279650A AU2003279650A1 (en) 2003-01-31 2003-11-10 An air-bag

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0302304.1 2003-01-31
GB0302304A GB2397806B (en) 2003-01-31 2003-01-31 Improvements in or relating to an air-bag

Publications (1)

Publication Number Publication Date
WO2004067337A1 true WO2004067337A1 (fr) 2004-08-12

Family

ID=9952236

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/001729 WO2004067337A1 (fr) 2003-01-31 2003-11-10 Airbag

Country Status (3)

Country Link
AU (1) AU2003279650A1 (fr)
GB (1) GB2397806B (fr)
WO (1) WO2004067337A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005110820A1 (fr) * 2004-05-07 2005-11-24 Autoliv Development Ab Unite de sac gonflable
DE102006041703A1 (de) * 2006-09-06 2008-03-27 Autoliv Development Ab Schelle und Gassack-Einheit
DE102006055723A1 (de) * 2006-11-25 2008-05-29 Autoliv Development Ab Airbaganordnung mit einem innenseitig des Gassackes befestigten Gasgenerator
DE102007047480A1 (de) 2007-10-04 2009-04-09 Autoliv Development Ab Befestigungselement und Gassack-Einheit
DE102008063789A1 (de) 2008-12-18 2010-07-15 Takata-Petri Ag Gasstromverteiler für ein Gassackmodul eines Fahrzeuginsassen-Rückhaltesystem
CN102398561A (zh) * 2010-09-13 2012-04-04 奥托立夫开发公司 汽车安全气帘支架
DE102005042026B4 (de) * 2005-09-02 2012-10-04 Autoliv Development Ab Vorhanggassack-Einheit
US8678440B1 (en) 2012-12-20 2014-03-25 Autoliv Asp, Inc. Retractor-lap pretensioner with single micro-gas generator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7789418B2 (en) * 2005-05-10 2010-09-07 Key Safety Systems, Inc. Curtain air bag assembly
US7677595B2 (en) 2008-01-18 2010-03-16 Autoliv Asp, Inc. Curtain airbag mounting device
WO2015016324A1 (fr) * 2013-08-02 2015-02-05 オートリブ ディベロップメント エービー Déflecteur et dispositif de coussin de sécurité gonflable
US9573550B1 (en) * 2015-08-17 2017-02-21 Autoliv Asp, Inc. Side curtain airbag compression inflator bracket
DE102016115768A1 (de) 2016-08-25 2018-03-01 Trw Automotive Gmbh Halteadapter für einen länglichen Gasgenerator sowie Baugruppe aus einem Halteadapter und einem Gasgenerator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0855316A1 (fr) * 1997-01-24 1998-07-29 Toyoda Gosei Co., Ltd. Dispositif de coussin gonflable latéral
US6224089B1 (en) * 1998-09-14 2001-05-01 Takata Corporation Connecting structure between an airbag and an inflator
US20020105174A1 (en) * 2001-02-05 2002-08-08 Toshinori Tanase Head protecting air bag device
WO2002079008A1 (fr) * 2001-04-02 2002-10-10 Trw Occupant Restraint Systems Gmbh & Co. Kg Module de sac gonflable pour systeme de retenue d'occupants de vehicule

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6293581B1 (en) * 1999-04-15 2001-09-25 Honda Giken Kogyo Kabushiki Kaisha Occupant restraint device
US6450529B1 (en) * 2000-06-23 2002-09-17 Breed Automotive Technologies, Inc. Inflatable side air bag curtain module with chamber separators
US20020101066A1 (en) * 2001-01-31 2002-08-01 Toshinori Tanase Head protection air bag system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0855316A1 (fr) * 1997-01-24 1998-07-29 Toyoda Gosei Co., Ltd. Dispositif de coussin gonflable latéral
US6224089B1 (en) * 1998-09-14 2001-05-01 Takata Corporation Connecting structure between an airbag and an inflator
US20020105174A1 (en) * 2001-02-05 2002-08-08 Toshinori Tanase Head protecting air bag device
WO2002079008A1 (fr) * 2001-04-02 2002-10-10 Trw Occupant Restraint Systems Gmbh & Co. Kg Module de sac gonflable pour systeme de retenue d'occupants de vehicule

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7600778B2 (en) 2004-05-07 2009-10-13 Autoliv Development Ab Airbag module
WO2005110820A1 (fr) * 2004-05-07 2005-11-24 Autoliv Development Ab Unite de sac gonflable
DE102005042026B4 (de) * 2005-09-02 2012-10-04 Autoliv Development Ab Vorhanggassack-Einheit
DE102006041703A8 (de) * 2006-09-06 2008-12-24 Autoliv Development Ab Schelle und Gassack-Einheit
DE102006041703A1 (de) * 2006-09-06 2008-03-27 Autoliv Development Ab Schelle und Gassack-Einheit
DE102006041703B4 (de) * 2006-09-06 2013-01-03 Autoliv Development Ab Gassack-Einheit
WO2008061679A1 (fr) 2006-11-25 2008-05-29 Autoliv Development Ab Ensemble d'airbag avec un générateur de gaz fixé sur le côté intérieur du sac à gaz
DE102006055723A1 (de) * 2006-11-25 2008-05-29 Autoliv Development Ab Airbaganordnung mit einem innenseitig des Gassackes befestigten Gasgenerator
DE102006055723B4 (de) * 2006-11-25 2015-11-12 Autoliv Development Ab Airbaganordnung mit einem innenseitig des Gassackes befestigten Gasgenerator
DE102007047480A1 (de) 2007-10-04 2009-04-09 Autoliv Development Ab Befestigungselement und Gassack-Einheit
DE102008063789A1 (de) 2008-12-18 2010-07-15 Takata-Petri Ag Gasstromverteiler für ein Gassackmodul eines Fahrzeuginsassen-Rückhaltesystem
CN102398561A (zh) * 2010-09-13 2012-04-04 奥托立夫开发公司 汽车安全气帘支架
CN102398561B (zh) * 2010-09-13 2015-09-09 奥托立夫开发公司 汽车安全气帘支架
US8678440B1 (en) 2012-12-20 2014-03-25 Autoliv Asp, Inc. Retractor-lap pretensioner with single micro-gas generator

Also Published As

Publication number Publication date
GB2397806A (en) 2004-08-04
AU2003279650A1 (en) 2004-08-23
GB2397806B (en) 2006-01-04
GB0302304D0 (en) 2003-03-05

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