FR2855125A1 - Inflatable security bag for motor vehicle, has supply pipe with one end fixed to opening and another end fixed to gas generator in air-tight manner, where latter end has clamping collar to maintain gas generator - Google Patents
Inflatable security bag for motor vehicle, has supply pipe with one end fixed to opening and another end fixed to gas generator in air-tight manner, where latter end has clamping collar to maintain gas generator Download PDFInfo
- Publication number
- FR2855125A1 FR2855125A1 FR0306128A FR0306128A FR2855125A1 FR 2855125 A1 FR2855125 A1 FR 2855125A1 FR 0306128 A FR0306128 A FR 0306128A FR 0306128 A FR0306128 A FR 0306128A FR 2855125 A1 FR2855125 A1 FR 2855125A1
- Authority
- FR
- France
- Prior art keywords
- gas generator
- opening
- end fixed
- supply pipe
- bag
- 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
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
-
- 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
- B60R21/26—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
- B60R2021/2612—Gas guiding means, e.g. ducts
-
- 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
- B60R21/2334—Expansion control features
- B60R21/2346—Soft diffusers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
ii
La présente invention concerne les sacs de sécurité gonflables à déploiement du type rideau, équipant les véhicules automobiles. Elle concerne plus particulièrement l'alimentation en gaz de tels sacs de sécurité gonflables. The present invention relates to the curtain-type deployment air bags that are fitted to motor vehicles. It relates more particularly to the gas supply of such air bags.
De façon conventionnelle, l'alimentation en gaz d'un sac de sécurité gonflable à déploiement de type rideau nécessite un empilage de renforts en tissu capables d'absorber les efforts dus aux jets de gaz, et le générateur de gaz est introduit dans le sac par une 10 ouverture ménagée dans les dits renforts. Cette disposition présente l'inconvénient que le générateur de gaz peut se déplacer par rapport au sac, et que la zone de liaison entre le générateur de gaz et le sac n'est pas étanche, ce qui entraîne une perte de pression à 15 l'intérieur du sac et donc une moindre efficacité d'amortissement de l'occupant en cas de choc. Conventionally, the gas supply of a curtain-type deployment air bag requires a stack of fabric reinforcements capable of absorbing the forces due to the gas jets, and the gas generator is introduced into the bag. by an opening formed in the said reinforcements. This arrangement has the disadvantage that the gas generator can move relative to the bag, and that the connection zone between the gas generator and the bag is not sealed, resulting in a loss of pressure at 15 ° C. inside of the bag and therefore less effective damping of the occupant in case of shock.
La présente invention a pour objet de remédier aux inconvénients mentionnés ci-dessus présentés par les sacs de sécurité gonflables de type rideau à dispositif 20 traditionnel d'alimentation en gaz, et elle propose à cet effet de rendre le sac de sécurité gonflable solidaire du générateur de gaz, de rendre étanche la zone de liaison entre le générateur de gaz et le sac, et de garantir la position exacte du générateur de gaz dans le sac. The object of the present invention is to overcome the above-mentioned drawbacks presented by conventional curtain-type airbag curtain air bags and propose for this purpose to make the inflatable safety bag integral with the generator. gas, seal the connection area between the gas generator and the bag, and ensure the exact position of the gas generator in the bag.
A cet effet, le sac de sécurité gonflable à dispositif incorporé d'assemblage à un générateur de gaz selon l'invention se caractérise par une pipe d'alimentation, en un matériau élastomère, dont une extrémité est fixée de façon étanche à une ouverture 30 ménagée à la partie supérieure du sac de sécurité gonflable et dont l'autre extrémité reçoit, également de façon étanche, le générateur de gaz. Cette pipe d'alimentation peut, de façon non limitative, être de forme coudée. For this purpose, the inflatable bag with a built-in device for assembly with a gas generator according to the invention is characterized by a supply pipe, made of an elastomeric material, one end of which is sealed to an opening 30 provided at the upper part of the air bag and the other end receives, also in a sealed manner, the gas generator. This feed pipe may, without limitation, be of bent shape.
Avantageusement, l'extrémité de la pipe d'alimentation qui est fixée à l'ouverture du sac comporte une collerette qui est soudée à la paroi du sac autour de l'ouverture ménagée dans celle-ci. L'autre extrémité de la pipe d'alimentation, dans laquelle est introduit le générateur de gaz comporte un collier de serrage qui 10 assure le maintien en place du générateur. Advantageously, the end of the supply pipe which is fixed to the opening of the bag comprises a flange which is welded to the wall of the bag around the opening formed therein. The other end of the supply pipe into which the gas generator is introduced has a clamp which holds the generator in place.
On comprend ainsi que, de par sa conception, le dispositif selon l'invention permet de fixer le générateur de gaz dans une position garantie mécaniquement par la forme de la pipe d'alimentation. De plus la liaison ainsi 15 réalisée entre le générateur de gaz et le sac de sécurité gonflable est parfaitement étanche. It is thus understood that, by design, the device according to the invention allows to fix the gas generator in a position mechanically guaranteed by the shape of the supply pipe. In addition, the connection thus made between the gas generator and the air bag is perfectly sealed.
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 20 schématique annexé dans lequel: la figure 1 est une vue en élévation d'un sac gonflable de type conventionnel auquel est assemblé par le dessus un générateur de gaz; la figure 2 est une vue en coupe verticale prise 25 selon la ligne II-II de la figure 1; la figure 3 est une vue en élévation d'un sac de sécurité gonflable équipé du dispositif d'assemblage selon l'invention; la figure 4 est une vue en coupe verticale prise 30 selon la ligne IV - IV de la figure 3; les figures 5 et 6 sont des vues, respectivement de face et de côté, du dispositif d'assemblage incorporé au sac de sécurité gonflable selon l'invention; et la figure 7 est une vue en élévation d'un sac de 5 sécurité gonflable de type rideau à tube diffuseur, équipé du dispositif d'assemblage selon l'invention. 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 an elevational view of a bag inflatable conventional type which is assembled from above a gas generator; Figure 2 is a vertical sectional view taken along the line II-II of Figure 1; Figure 3 is an elevational view of an inflatable bag equipped with the assembly device according to the invention; Figure 4 is a vertical sectional view taken along line IV-IV of Figure 3; Figures 5 and 6 are views, respectively front and side, of the assembly device incorporated in the air bag according to the invention; and FIG. 7 is an elevational view of a curtain air bag of the diffuser tube type equipped with the assembly device according to the invention.
Aux figures 1 et 2, on a représenté un sac de sécurité gonflable 1 de type conventionnel, qui présente une ouverture 2 d'orientation verticale à travers laquelle 10 est engagée l'extrémité coudée 4 d'un générateur de gaz 3. FIGS. 1 and 2 show an air bag 1 of conventional type, which has an opening 2 of vertical orientation through which is engaged the bent end 4 of a gas generator 3.
Comme on le voit à la figure 1, l'extrémité 4 du générateur est susceptible d'effectuer un mouvement de translation à l'intérieur du sac 1, en occasionnant des pertes de gaz vers l'extérieur et une détérioration de 15 l'interface entre le sac 1 et le générateur 3 sous l'effet des efforts dus aux jets de gaz. As can be seen in FIG. 1, the end 4 of the generator is capable of translational movement inside the bag 1, causing outward gas losses and deterioration of the interface. between the bag 1 and the generator 3 under the effect of the forces due to the gas jets.
En référence maintenant aux figures 3 à 6, le sac de sécurité gonflable 5 en tissu enduit est fermé par couture à son extrémité inférieure et présente, à sa partie 20 supérieure, une ouverture 6. Dans cette ouverture 6 est engagée une extrémité cylindrique 7 d'une pipe d'alimentation 8. Comme représenté plus en détail aux figures 5 et 6 la pipe d'alimentation 8, réalisée en un matériau élastomère à capacité soudable, présente une 25 section transversale circulaire et une forme coudée avec ses extrémités 7 et 9 qui font entre elles un angle de 90 . L'extrémité 7 de la pipe d'alimentation 8 est solidaire d'une collerette de fixation 10 qui est soudée sur la paroi du sac 1, autour de l'ouverture 6. Dans 30 l'autre extrémité 9 de la pipe d'alimentation 8 est inséré le générateur de gaz 11, et l'ensemble est maintenu en place par un collier de serrage 12. Referring now to FIGS. 3 to 6, the airbag 5 made of coated fabric is closed by stitching at its lower end and has, at its upper part, an opening 6. In this opening 6 is engaged a cylindrical end 7 of 8. As shown in more detail in FIGS. 5 and 6, the feed pipe 8, made of a weldable elastomeric material, has a circular cross-section and a bent shape with its ends 7 and 9. which make an angle of 90 between them. The end 7 of the supply pipe 8 is secured to a fastening collar 10 which is welded to the wall of the bag 1, around the opening 6. In the other end 9 of the feed pipe 8 is inserted the gas generator 11, and the assembly is held in place by a clamping collar 12.
On comprend que le soudage de la collerette 10 permet d'obtenir une étanchéité parfaite entre le sac 5 et 5 la pipe d'alimentation 8, et que le matériau élastomère dans lequel est réalisée la pipe d'alimentation 8 permet d'assurer l'étanchéité au niveau du générateur de gaz 11 lors du serrage du collier 12. Ce matériau permet aussi, de par sa souplesse, d'absorber au niveau du coude de la 10 pipe d'alimentation 8 toutes les inclinaisons du générateur 11. It will be understood that the welding of the flange 10 makes it possible to obtain a perfect seal between the bag 5 and the feed pipe 8, and that the elastomeric material in which the feed pipe 8 is made makes it possible to ensure the Sealing at the gas generator 11 during clamping of the collar 12. This material also allows, by its flexibility, to absorb at the elbow of the feed pipe 8 all the inclinations of the generator 11.
La figure 7 montre le montage d'une pipe d'alimentation 8 sur un sac de sécurité gonflable 13 de type rideau, comportant à sa partie supérieure un tube 15 diffuseur 14, l'extrémité de la pipe d'alimentation débouchant à l'intérieur de ce tube diffuseur. FIG. 7 shows the mounting of a feed pipe 8 on an airbag 13 of the curtain type, comprising at its upper part a diffuser tube 14, the end of the feed pipe opening inside. of this diffuser tube.
On comprendra que la description ci-dessus a été It will be understood that the above description has been
donnée à simple titre d'exemple, sans caractère limitatif, et que des adjonctions ou des modifications constructives 20 pourraient y être apportées sans sortir du cadre de la présente invention. given merely by way of example, without limitation, and constructive additions or modifications could be made without departing from the scope of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0306128A FR2855125B1 (en) | 2003-05-22 | 2003-05-22 | INFLATABLE SAFETY BAG WITH A DEVICE INCORPORATING ASSEMBLY TO A GAS GENERATOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0306128A FR2855125B1 (en) | 2003-05-22 | 2003-05-22 | INFLATABLE SAFETY BAG WITH A DEVICE INCORPORATING ASSEMBLY TO A GAS GENERATOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2855125A1 true FR2855125A1 (en) | 2004-11-26 |
| FR2855125B1 FR2855125B1 (en) | 2006-05-26 |
Family
ID=33396650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0306128A Expired - Fee Related FR2855125B1 (en) | 2003-05-22 | 2003-05-22 | INFLATABLE SAFETY BAG WITH A DEVICE INCORPORATING ASSEMBLY TO A GAS GENERATOR |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2855125B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006092226A2 (en) * | 2005-03-02 | 2006-09-08 | Autoliv Development Ab | Tubular gas guiding element, a gas generating and supplying unit and a suspended gasbag unit |
| EP3018015A1 (en) * | 2014-11-04 | 2016-05-11 | Dalphi Metal España, S.A. | Airbag module, in particular for curtain air bag, airbag for an air bag module and vehicle occupant restraint system |
| WO2021058542A1 (en) * | 2019-09-25 | 2021-04-01 | Zf Automotive Germany Gmbh | Airbag and airbag module, method for producing an airbag woven as a single piece, and method for producing an airbag module |
| WO2024040064A1 (en) * | 2022-08-19 | 2024-02-22 | Illinois Tool Works Inc. | Airbag diffuser |
Families Citing this family (1)
| 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3937258A (en) * | 1971-04-09 | 1976-02-10 | Allied Chemical Corporation | Flexible flapper |
| DE19629541A1 (en) * | 1996-07-22 | 1998-01-29 | Dynamit Nobel Ag | Airbag module for vehicle passengers |
| DE29823008U1 (en) * | 1998-12-17 | 1999-03-11 | Petri Ag, 63743 Aschaffenburg | Device for blowing gas from a gas generator into a gas bag of an airbag unit for motor vehicles |
| US20020140211A1 (en) * | 2001-03-27 | 2002-10-03 | Toyota Jidosha Kabushiki Kaisha | Head protection airbag system |
| US20030030257A1 (en) * | 2001-08-09 | 2003-02-13 | Thomas Scott David | Inflatable safety restraint assembly and methods of installing such an inflatable safety restraint assembly |
-
2003
- 2003-05-22 FR FR0306128A patent/FR2855125B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3937258A (en) * | 1971-04-09 | 1976-02-10 | Allied Chemical Corporation | Flexible flapper |
| DE19629541A1 (en) * | 1996-07-22 | 1998-01-29 | Dynamit Nobel Ag | Airbag module for vehicle passengers |
| DE29823008U1 (en) * | 1998-12-17 | 1999-03-11 | Petri Ag, 63743 Aschaffenburg | Device for blowing gas from a gas generator into a gas bag of an airbag unit for motor vehicles |
| US20020140211A1 (en) * | 2001-03-27 | 2002-10-03 | Toyota Jidosha Kabushiki Kaisha | Head protection airbag system |
| US20030030257A1 (en) * | 2001-08-09 | 2003-02-13 | Thomas Scott David | Inflatable safety restraint assembly and methods of installing such an inflatable safety restraint assembly |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006092226A2 (en) * | 2005-03-02 | 2006-09-08 | Autoliv Development Ab | Tubular gas guiding element, a gas generating and supplying unit and a suspended gasbag unit |
| WO2006092226A3 (en) * | 2005-03-02 | 2008-03-13 | Autoliv Dev | Tubular gas guiding element, a gas generating and supplying unit and a suspended gasbag unit |
| EP3018015A1 (en) * | 2014-11-04 | 2016-05-11 | Dalphi Metal España, S.A. | Airbag module, in particular for curtain air bag, airbag for an air bag module and vehicle occupant restraint system |
| WO2021058542A1 (en) * | 2019-09-25 | 2021-04-01 | Zf Automotive Germany Gmbh | Airbag and airbag module, method for producing an airbag woven as a single piece, and method for producing an airbag module |
| US11975676B2 (en) | 2019-09-25 | 2024-05-07 | Zf Automotive Germany Gmbh | Airbag and airbag module, method for producing an airbag woven as a single piece, and method for producing an airbag module |
| WO2024040064A1 (en) * | 2022-08-19 | 2024-02-22 | Illinois Tool Works Inc. | Airbag diffuser |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2855125B1 (en) | 2006-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| CA | Change of address | ||
| ST | Notification of lapse |
Effective date: 20130131 |