FR2861670A1 - Curtain type airbag fixation device for motor vehicle, has fixation lugs placed on strap made up of fibrous material, where strap is fixed along its length at upper edge of bag - Google Patents

Curtain type airbag fixation device for motor vehicle, has fixation lugs placed on strap made up of fibrous material, where strap is fixed along its length at upper edge of bag Download PDF

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Publication number
FR2861670A1
FR2861670A1 FR0312984A FR0312984A FR2861670A1 FR 2861670 A1 FR2861670 A1 FR 2861670A1 FR 0312984 A FR0312984 A FR 0312984A FR 0312984 A FR0312984 A FR 0312984A FR 2861670 A1 FR2861670 A1 FR 2861670A1
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FR
France
Prior art keywords
strap
bag
upper edge
length
fixation
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
Application number
FR0312984A
Other languages
French (fr)
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FR2861670B1 (en
Inventor
Stephane Goujon
Olivier Durand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aerosystems SAS
Original Assignee
Aerazur SAS
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Filing date
Publication date
Application filed by Aerazur SAS filed Critical Aerazur SAS
Priority to FR0312984A priority Critical patent/FR2861670B1/en
Publication of FR2861670A1 publication Critical patent/FR2861670A1/en
Application granted granted Critical
Publication of FR2861670B1 publication Critical patent/FR2861670B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B60R21/20—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
    • 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
    • B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The device has fixation lugs (6) connected along a predetermined space at an upper edge of an airbag (7). The fixation lugs are placed on a strap (5) made up of fibrous material. The strap is fixed along its length at the upper edge of the airbag. The lugs are made up of fibrous or plastic material. The lugs are clamped with supports carried by a lateral wall of a vehicle.

Description

La présente invention concerne les sacs de sécurité gonflables équipantThe present invention relates to the inflatable safety bags equipping

les véhicules automobiles, et elle concerne plus particulièrement les sacs de sécurité gonflables de type rideau, dits encore sacs de sécurité  motor vehicles, and it relates more particularly to the curtain-type airbag, still known as safety bags

gonflables latéraux et destinés à protéger la tête des occupants d'un véhicule.  side inflatables and intended to protect the heads of the occupants of a vehicle.

Ces sacs de sécurité gonflables de type rideau, qui équipent les parois latérales d'un véhicule, sont généralement liés à la paroi du véhicule par des excroissances de matière, appelées pattes ou oreilles, qui sont réparties sur la longueur du bord supérieur du sac de sécurité gonflable et sont réalisées en matière textile ou plastique, le nombre de ces pattes ou oreilles varie généralement de deux à six.  These curtain-type air bags, which are fitted to the side walls of a vehicle, are generally connected to the vehicle wall by material protuberances, called tabs or ears, which are distributed along the length of the upper edge of the bag of the vehicle. inflatable safety and are made of textile or plastic, the number of these legs or ears generally varies from two to six.

Actuellement, la fixation des pattes sur le sac de sécurité gonflable nécessite la manipulation de plusieurs éléments, constitués par les dites pattes, pour leur positionnement précis sur le sac, puis l'assemblage de ces pattes l'une après l'autre (par exemple par couture), ce qui augmente les coûts de fabrication. En outre, la tolérance de positionnement nécessaire entre chaque patte entraîne le refus de certains sacs dont les pattes de fixation ne viennent pas coïncider exactement avec les organes de fixation équipant la paroi du véhicule.  Currently, the attachment of the tabs on the air bag requires the manipulation of several elements, constituted by the said tabs, for their precise positioning on the bag, then the assembly of these legs one after the other (for example by sewing), which increases the manufacturing costs. In addition, the necessary positioning tolerance between each lug results in the refusal of certain bags whose mounting tabs do not coincide exactly with the fasteners fitted to the vehicle wall.

La présente invention a pour objet de remédier aux inconvénients mentionnés ci-dessus du système actuel de fixation, à la paroi latérale d'un véhicule, des sacs de sécurité gonflables de type rideau, et elle propose à cet effet un tel dispositif de fixation qui ne comporte qu'un très petit nombre d'éléments, en réduisant les coûts de fabrication liés à la manipulation et à l'assemblage de ces élément et en limitant le risque de rebut de pièces non conformes, qui permet d'améliorer la tolérance de positionnement entre chaque patte, et qui permet l'obtention d'un ensemble particulièrement robuste.  The object of the present invention is to overcome the aforementioned drawbacks of the present system for attaching curtain-type airbag air bags to the side wall of a vehicle, and proposes for this purpose such a fixing device which has a very small number of elements, reducing manufacturing costs related to the handling and assembly of these elements and limiting the risk of scrapping non-compliant parts, which improves the tolerance of positioning between each leg, and which allows obtaining a particularly robust assembly.

Selon l'invention, le dispositif de fixation pour sac de sécurité gonflable de type rideau est du type comprenant plusieurs pattes de fixation qui sont liées selon des écartements prédéterminés au bord supérieur du sac, et il se caractérise en ce que les dites pattes de fixation sont placées sur une bande ou tringle destinée à être fixée sur toute sa longueur au bord supérieur du sac.  According to the invention, the curtain type airbag fastening device is of the type comprising a plurality of fastening tabs which are connected at predetermined spacings to the upper edge of the bag, and it is characterized in that the said fastening tabs are placed on a strip or rod intended to be fixed along its entire length to the upper edge of the bag.

Avantageusement, la dite bande ou tringle selon l'invention est d'une seule pièce avec les pattes de fixation qu'elle porte en formant ainsi un ensemble monobloc.  Advantageously, said strip or rod according to the invention is in one piece with the fastening tabs that it carries thereby forming a one-piece assembly.

On comprend ainsi que le dispositif de fixation du sac gagne en robustesse, et qu'il permet de limiter les coûts de fabrication en permettant de réduire le nombre des éléments à manipuler et à assembler. En évitant le positionnement individuel des pattes sur le sac de sécurité gonflable, l'invention permet alors d'améliorer la tolérance de positionnement entre chaque patte.  It is thus understood that the fastening device of the bag is more robust and that it makes it possible to limit manufacturing costs by making it possible to reduce the number of elements to be handled and assembled. By avoiding the individual positioning of the tabs on the airbag, the invention then makes it possible to improve the positioning tolerance between each leg.

On comprend aussi que la limitation ainsi obtenue du nombre d'éléments permet de limiter les risques de rebuts pour une quantité de pièces non conformes dans l'assemblage.  It is also understood that the limitation thus obtained of the number of elements makes it possible to limit the risks of rejects for a quantity of non-compliant parts in the assembly.

Pour bien faire comprendre l'invention on en décrira ci-après, à titre d'exemple sans caractère limitatif, une forme de réalisation préférée en référence au dessin schématique annexé dans lequel: la figure 1 est une vue partielle en élévation d'un sac de sécurité gonflable de type rideau équipé d'un dispositif de fixation conventionnel; la figure 2 est une vue en élévation d'un dispositif 5 de fixation selon l'invention, destiné à équiper un sac de sécurité gonflable de type rideau; et la figure 3 est une vue partielle en élévation d'un sac de sécurité gonflable de type rideau sur lequel est monté le dispositif de fixation de la figure 2.  For a better understanding of the invention will be described hereinafter, by way of example without limitation, a preferred embodiment with reference to the accompanying schematic drawing wherein: Figure 1 is a partial elevational view of a bag inflatable safety curtain type equipped with a conventional fastening device; Figure 2 is an elevational view of a fastening device 5 according to the invention, intended to equip a curtain type airbag; and FIG. 3 is a partial view in elevation of a curtain type airbag on which the fixing device of FIG. 2 is mounted.

A la figure 1 on a représenté, au titre de l'art antérieur, la partie supérieure d'un sac de sécurité gonflable 1 de type rideau à laquelle sont assemblées de façon indépendante des pattes de fixation 2. Ces pattes 2, en textile ou en matière plastique, sont disposées de part et d'autre de la pièce 3 assurant la mise en communication du générateur de gaz (non représenté) et du tube diffuseur de gaz 4 incorporé à l'extrémité supérieure du sac 1, et sont fixées au sac 1 par couture selon un espacement mutuel prédéterminé.  FIG. 1 shows, in the prior art, the upper part of an inflatable security bag 1 of the curtain type to which are independently assembled fastening tabs 2. These tabs 2, made of textile or in plastic, are arranged on either side of the part 3 ensuring the communication of the gas generator (not shown) and the gas diffuser tube 4 incorporated in the upper end of the bag 1, and are fixed to the bag 1 by sewing according to a predetermined mutual spacing.

A la figure 2, le dispositif de fixation selon l'invention est constitué par une bande 5 en matière textile dans laquelle sont découpées des pattes de fixation 6 qui font saillie à l'extrémité supérieure de cette bande.  In Figure 2, the fixing device according to the invention is constituted by a strip 5 of textile material in which are cut out fastening tabs 6 which project at the upper end of this strip.

Comme on le voit à la figure 3, la bande 5 est appliquée contre l'extrémité supérieure de l'une des faces d'un sac de sécurité gonflable 7, et est fixée dans cette position par couture sur toute sa longueur.  As seen in Figure 3, the band 5 is applied against the upper end of one of the faces of an inflatable bag 7, and is fixed in this position by sewing along its length.

On comprend qu'un tel dispositif de fixation, dans 30 lequel chaque patte 6 fait partie intégrante d'une bande 5 fixée sur toute sa longueur au sac 7, présente une résistance bien supérieure à celle des pattes fixées individuellement au sac comme dans le cas du dispositif conventionnel de la figure 1.  It will be understood that such a fastening device, in which each lug 6 is an integral part of a strip 5 fixed along its entire length to the bag 7, has a much greater resistance than the lugs fixed individually to the bag as in the case of the conventional device of FIG.

On comprend aussi que l'espacement entre les pattes 6, qui est imposé par l'écartement existant entre les supports (non représentés) portés par la paroi latérale du véhicule, est obtenu dans le dispositif selon l'invention avec une précision supérieure au dispositif de fixation conventionnel dans lequel les pattes sont fixées indépendamment les unes des autres.  It is also understood that the spacing between the tabs 6, which is imposed by the gap existing between the supports (not shown) borne by the side wall of the vehicle, is obtained in the device according to the invention with greater accuracy than the device. conventional fixing in which the tabs are fixed independently of each other.

On comprendra que la description ci-dessus a été donnée à simple titre d'exemple, sans caractère limitatif, et que des adjonctions ou des modifications constructives pourraient y être apportées sans sortir du cadre de la présente invention.  It will be understood that the above description has been given by way of example only, without limitation, and that additions or constructive modifications could be made without departing from the scope of the present invention.

Claims (2)

REVENDICATIONS 1. Dispositif de fixation d'un sac de sécurité gonflable de type rideau, comprenant plusieurs pattes de fixation (6) liées selon des écartements prédéterminés au bord supérieur du sac (7), caractérisé en ce que les dites pattes de fixation (6) sont placées sur une bande ou tringle (5) destinée à être fixée sur toute sa longueur au bord supérieur du sac (7).  1. Device for fixing a curtain-type airbag, comprising a plurality of fastening lugs (6) connected at predetermined spacings to the upper edge of the bag (7), characterized in that said fixing lugs (6) are placed on a strip or rod (5) intended to be fixed along its length to the upper edge of the bag (7). 2. Dispositif de fixation selon la revendication 1, caractérisé en ce que la dite bande ou tringle (5) est d'une seule pièce avec les pattes de fixation (6) qu'elle porte, en constituant ainsi un ensemble monobloc. 20  2. Fastening device according to claim 1, characterized in that said strip or rod (5) is in one piece with the fastening lugs (6) it carries, thus constituting a one-piece assembly. 20
FR0312984A 2003-11-05 2003-11-05 SYSTEM FOR FASTENING AN INFLATABLE SAFETY BAG OF THE CURTAIN TYPE. Expired - Fee Related FR2861670B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0312984A FR2861670B1 (en) 2003-11-05 2003-11-05 SYSTEM FOR FASTENING AN INFLATABLE SAFETY BAG OF THE CURTAIN TYPE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0312984A FR2861670B1 (en) 2003-11-05 2003-11-05 SYSTEM FOR FASTENING AN INFLATABLE SAFETY BAG OF THE CURTAIN TYPE.

Publications (2)

Publication Number Publication Date
FR2861670A1 true FR2861670A1 (en) 2005-05-06
FR2861670B1 FR2861670B1 (en) 2006-02-03

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FR0312984A Expired - Fee Related FR2861670B1 (en) 2003-11-05 2003-11-05 SYSTEM FOR FASTENING AN INFLATABLE SAFETY BAG OF THE CURTAIN TYPE.

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10604259B2 (en) 2016-01-20 2020-03-31 Amsafe, Inc. Occupant restraint systems having extending restraints, and associated systems and methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199898B1 (en) * 1998-08-20 2001-03-13 Takata Corporation Protective cushion for vehicle occupant's head
GB2386353A (en) * 2002-03-15 2003-09-17 Autoliv Dev A gas-flow duct
EP1104724B1 (en) * 1999-12-03 2004-02-18 Delphi Technologies, Inc. Mounting arrangement for an airbag module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199898B1 (en) * 1998-08-20 2001-03-13 Takata Corporation Protective cushion for vehicle occupant's head
EP1104724B1 (en) * 1999-12-03 2004-02-18 Delphi Technologies, Inc. Mounting arrangement for an airbag module
GB2386353A (en) * 2002-03-15 2003-09-17 Autoliv Dev A gas-flow duct

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Effective date: 20130731