WO2014171180A1 - Dispositif de coussin gonflable latéral - Google Patents

Dispositif de coussin gonflable latéral Download PDF

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Publication number
WO2014171180A1
WO2014171180A1 PCT/JP2014/054163 JP2014054163W WO2014171180A1 WO 2014171180 A1 WO2014171180 A1 WO 2014171180A1 JP 2014054163 W JP2014054163 W JP 2014054163W WO 2014171180 A1 WO2014171180 A1 WO 2014171180A1
Authority
WO
WIPO (PCT)
Prior art keywords
base fabric
cover member
fabric panel
airbag device
side airbag
Prior art date
Application number
PCT/JP2014/054163
Other languages
English (en)
Japanese (ja)
Inventor
雄一郎 塚越
▲みん▼動 金
Original Assignee
オートリブ ディベロップメント エービー
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 オートリブ ディベロップメント エービー filed Critical オートリブ ディベロップメント エービー
Priority to JP2015512336A priority Critical patent/JP6027677B2/ja
Publication of WO2014171180A1 publication Critical patent/WO2014171180A1/fr

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    • 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
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • 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 present invention relates to a side airbag device that protects an occupant by mitigating an impact acting on the occupant by, for example, deploying an airbag between a side door and a seat at the time of a collision from the side of the vehicle.
  • the side airbag device is built in the side portion on the side door side of the seat back constituting the seat, and when an impact exceeding a preset value acts on the side of the vehicle, the side airbag device ignites the inflator to generate high-pressure gas, An airbag is deployed between the door and the seat.
  • Some of these side airbag devices are provided with vent holes in the airbag for optimally maintaining the hardness of the airbag during deployment in order to improve occupant protection performance.
  • the passenger may be injured if the high-temperature high-pressure gas exhausted from the vent hole directly hits the passenger when the airbag is deployed.
  • Patent Document 1 a side airbag device in which a cover member for deflecting the flow of the high-pressure gas is provided at a vent hole forming portion of the airbag.
  • the vent hole forming portion of the airbag may come into contact with the cover member and the vent hole may be blocked when the airbag is deployed.
  • the deployment behavior is the same as that of an airbag without a vent hole, and the significance of providing the vent hole is lost.
  • the problem to be solved by the present invention is that when the vent hole is simply covered with a cover member, the vent hole forming portion of the airbag contacts the cover member when the airbag is deployed, and the vent hole may be blocked. It is a point.
  • An object of the present invention is to prevent the vent hole from being blocked by contact of the vent hole forming portion of the airbag with the cover member when the airbag is deployed, by defining the shape and installation method of the cover member. It is what.
  • a side airbag device that includes an airbag and an inflator and is built into a vehicle seat and deployed between an occupant and a side door in an emergency
  • the air bag forms a vent hole in a base fabric panel formed by joining the outer periphery into a bag shape, and a cover member for deflecting the flow of gas exhausted from the vent hole during deployment is provided with a vent of the base fabric panel.
  • the cover member is made of cloth, the opening provided on the gas exhaust side is formed with the widest width, and when the cover member is joined to the base fabric panel, the opening forming portion is separated from the base fabric panel.
  • the most important feature is to have a gap.
  • the cover member formed so that the opening provided on the gas exhaust side has the widest width is formed so that the opening forming portion has a gap away from the base fabric panel. It is joined to the forming part.
  • the opening forming portion of the cover member since the opening forming portion of the cover member is in a state of floating away from the base fabric panel, the gas is easily exhausted when the airbag is deployed, and the gas escape during deployment is stable. .
  • the high-temperature high-pressure gas exhausted from the vent hole does not directly hit the occupant when the airbag is deployed, and the gas is easily exhausted when the airbag is deployed. Stable and improved passenger protection performance.
  • FIG. 1 is a diagram for explaining an airbag constituting a side airbag device of the present invention, where (a) is a view of an airbag in a deployed state as viewed from the side of a vehicle, and (b) is a cross-sectional view taken along line AA in FIG.
  • FIG. 4C is a cross-sectional view taken along the line BB of FIG. It is explanatory drawing of a cover member, (a) is the figure before sewing seen from the plane direction, (b) is the figure after sewing seen from the plane direction, (c) is the figure which looked at (b) from the opening side. is there.
  • the present invention was made for the purpose of preventing the vent hole formation portion of the base fabric panel from coming into contact with the cover member and closing the vent hole when the airbag is deployed.
  • a cover member formed so that the opening provided on the gas exhaust side is widest is provided with a vent hole in the base fabric panel so that the opening forming portion is spaced from the base fabric panel. Realized by bonding to the forming part.
  • FIG. 1 is a view for explaining an airbag constituting the side airbag apparatus of the present invention.
  • the side airbag device when a collision occurs from the side of the vehicle, for example, between the driver seated on the driver's seat and the side door, from the side portion on the side door side of the seat back toward the front of the vehicle.
  • the airbag is deployed to protect the occupant.
  • the airbag 1 of the side airbag device is formed into a bag shape by, for example, overlapping two base fabric panels 2a and 2b and sewing the entire outer periphery, for example.
  • the base fabric panel 2a is also referred to as one base fabric panel 2a
  • the base fabric panel 2b is also referred to as the other base fabric panel 2b.
  • Reference numeral 3 denotes an outer periphery sewing portion of the two base fabric panels 2a and 2b.
  • One base fabric panel 2a is provided with, for example, two vent holes 4a and 4b at a position on the front side of the vehicle when the airbag 1 formed in the bag shape is installed and deployed in the vehicle. . These vent holes 4a and 4b are provided to exhaust the gas after the airbag 1 is deployed or after the occupant comes into contact with the airbag 1 to alleviate the impact on the occupant.
  • an inflator 5 is incorporated in the airbag 1 at a position on the rear side of the vehicle so as to be wrapped in one base fabric panel 2a and the other base fabric panel 2b.
  • Reinforcing cloth (not shown) is sewn together at the internal position of the inflator 5 of the one and the other base fabric panels 2a and 2b so as to withstand the heat and pressure of the gas ejected from the inflator 5.
  • the present invention is characterized by the shape of the cover member 6 that deflects the flow of the high-temperature high-pressure gas exhausted from the vent holes 4a and 4b, and the installation method on one base fabric panel 2a.
  • the cover member 6 is made of cloth, for example.
  • the cover member 6 uses a non-coated cloth, but the side of the cover member 6 facing the vent holes 4a and 4b may be provided with a silicon coat or the like in order to improve heat resistance.
  • the cover member 6 has a shape in which the opening 7 formed by the cover member 6 and the one base fabric panel 2a has the widest width, for example, the side on which the opening 7 is formed is wide.
  • the side that covers the vent holes 4a and 4b is formed in a narrow mountain shape.
  • the cloth used for the cover member 6 is preferably a cloth made of the same material as the one and the other base fabric panels 2a and 2b. It is also possible to use an elastic sheet such as a rubber sheet, but the elastic sheet has a uniform inflating method depending on the gas flow and temperature when the airbag is deployed, and obstacles in the vehicle when the airbag is deployed. Therefore, the gas discharge performance at the time of airbag deployment varies. Therefore, the elastic sheet is not suitable for the cover member 6.
  • the cover member 6 is separated from one base fabric panel 2a to form a gap 10 between the two fabrics 6 and 2a, and the cover member 6 is slackened at the portion where the opening 7 is formed. 9 is joined to one base fabric panel 2a.
  • the length L2 of the bottom side portion of the cover member 6 after joining is the bottom side 6a of the cover member 6. What is necessary is just to sew the outer peripheral part except the formation part of the opening 7 so that it may become shorter than this length L1 (refer Fig.2 (a) (b)).
  • Reference numeral 8 denotes an outer periphery sewing portion of the cover member 6.
  • the shape of the opening 7 formed by the cover member 6 and the one base fabric panel 2a is the widest on the surface of the one base fabric panel 2a.
  • the cover member 6 has a mountain shape, as shown in FIG. 3A, the heel 9a generated at the sewing position on the outer periphery of the cover member 6 is reduced, so that the sewing work can be performed easily.
  • the mountain shape is a state in which the airbag 1 is unfolded before being folded, and gradually expands from the center of the airbag 1 toward the outer periphery when the entire airbag 1 is viewed from above.
  • the shape of the cover member 6 is a rectangular shape as shown in FIG. 3B, for example, the sewing work cannot be easily performed by the generated collar 9b generated at the outer sewing position. In addition, the portion where the opening 7 is formed cannot be made the widest, and the gas cannot be exhausted smoothly.
  • one and the other base fabric from the outer periphery sewing portion 3 of the one and other base fabric panels 2a and 2b. It is desirable that the formation portion of the opening 7 is located on the center side of the panels 2a and 2b.
  • the front end portions 6b on both sides of the formation portion of the opening 7 of the cover member 6 are protruded outward from the one and the other base fabric panels 2a and 2b, and the protruded front end portions It is desirable to form a positioning hole 6c in 6b.
  • the formation portion of the opening 7 of the cover member 6 is in a state of floating with respect to the one base fabric panel 2a, so that gas is vented from the vent holes 4a and 4b when the airbag 1 is deployed. It becomes easy to exhaust, the outgassing at the time of deployment is stabilized, and the occupant protection performance is improved.
  • the exhaust direction of the high-temperature high-pressure gas exhausted from the vent holes 4a and 4b does not change from the planned direction, so that the exhausted gas directly hits the passenger and the passenger is injured. There is nothing.
  • the side airbag device described above is a preferable example of the present invention, and other embodiments can be implemented or performed by various methods.
  • the present invention is not limited to the detailed shape, size, configuration, and the like of the components shown in the accompanying drawings unless otherwise specified in the present specification.
  • expressions and terms used in the present specification are for the purpose of explanation, and are not limited thereto unless specifically limited.
  • the bag-like airbag 1 is formed by sewing the outer periphery of the two base fabric panels 2a and 2b, but the base fabric panel is folded and the outer periphery is sewn.
  • the bag-shaped airbag 1 may be formed.
  • vent 1 formed in the airbag 1 may be one, and the position is not limited to the vehicle front side of the airbag.
  • the side airbag device of the present invention can be applied not only to the driver's seat but also to the passenger seat and the rear seat.
  • the side airbag device attached to the automobile has been described.
  • the present invention can be applied to a side airbag device for a vehicle such as an aircraft or a ship other than the automobile, and the same effect is exhibited.

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

Abstract

L'invention concerne un dispositif de coussin gonflable latéral conçu de sorte que des trous de mise à l'air ne sont pas fermés durant le déploiement du coussin gonflable. Un dispositif de coussin gonflable latéral comporte un coussin gonflable (1) et un dispositif de gonflage (5). Le coussin gonflable (1) est formé en cousant les périphéries externes de panneaux de base en tissu (2a, 2b) les unes aux autres en une forme de type sac et possède des trous de mise à l'air (4a, 4b) dans un (2a) des panneaux de base en tissu (2a, 2b). Un élément de couverture (6), qui dévie le flux de gaz évacué des trous de mise à l'air (4a, 4b) durant le déploiement, est joint à la partie où les trous de mise à l'air sont formés. L'élément de couverture (6) est constitué de tissu et possède la plus grande largeur au niveau d'une partie d'ouverture formée sur le côté duquel le gaz est évacué. Lorsque l'on coud l'élément de couverture (6) au panneau de base en tissu précité (2a), la partie où est formée l'ouverture (7) est formée de sorte que l'élément de couverture (6) se trouve à une certaine distance du panneau de base en tissu (2a) pour former un écartement entre eux.
PCT/JP2014/054163 2013-04-15 2014-02-21 Dispositif de coussin gonflable latéral WO2014171180A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015512336A JP6027677B2 (ja) 2013-04-15 2014-02-21 サイドエアバッグ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013084934 2013-04-15
JP2013-084934 2013-04-15

Publications (1)

Publication Number Publication Date
WO2014171180A1 true WO2014171180A1 (fr) 2014-10-23

Family

ID=51731141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/054163 WO2014171180A1 (fr) 2013-04-15 2014-02-21 Dispositif de coussin gonflable latéral

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JP (1) JP6027677B2 (fr)
WO (1) WO2014171180A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9751490B1 (en) * 2016-04-21 2017-09-05 Hyundai Motor Company Side airbag for vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042543A (ja) * 1990-04-17 1992-01-07 Ikeda Bussan Co Ltd エアバッグ装置
JPH0632227U (ja) * 1992-10-07 1994-04-26 豊田合成株式会社 エアバッグ装置のエアバッグ
JP2007518622A (ja) * 2004-01-23 2007-07-12 タカターペトリ（ウルム）ゲーエムベーハー サイド保護装置
JP2012153340A (ja) * 2011-01-28 2012-08-16 Toyoda Gosei Co Ltd エアバッグ装置
JP2013022982A (ja) * 2011-07-15 2013-02-04 Toyota Motor Corp 助手席用エアバッグ装置
JP2013060127A (ja) * 2011-09-14 2013-04-04 Toyoda Gosei Co Ltd エアバッグ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042543A (ja) * 1990-04-17 1992-01-07 Ikeda Bussan Co Ltd エアバッグ装置
JPH0632227U (ja) * 1992-10-07 1994-04-26 豊田合成株式会社 エアバッグ装置のエアバッグ
JP2007518622A (ja) * 2004-01-23 2007-07-12 タカターペトリ（ウルム）ゲーエムベーハー サイド保護装置
JP2012153340A (ja) * 2011-01-28 2012-08-16 Toyoda Gosei Co Ltd エアバッグ装置
JP2013022982A (ja) * 2011-07-15 2013-02-04 Toyota Motor Corp 助手席用エアバッグ装置
JP2013060127A (ja) * 2011-09-14 2013-04-04 Toyoda Gosei Co Ltd エアバッグ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9751490B1 (en) * 2016-04-21 2017-09-05 Hyundai Motor Company Side airbag for vehicle

Also Published As

Publication number Publication date
JP6027677B2 (ja) 2016-11-16
JPWO2014171180A1 (ja) 2017-02-16

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