WO2008065964A1 - Ensemble airbag rideaux - Google Patents

Ensemble airbag rideaux Download PDF

Info

Publication number
WO2008065964A1
WO2008065964A1 PCT/JP2007/072644 JP2007072644W WO2008065964A1 WO 2008065964 A1 WO2008065964 A1 WO 2008065964A1 JP 2007072644 W JP2007072644 W JP 2007072644W WO 2008065964 A1 WO2008065964 A1 WO 2008065964A1
Authority
WO
WIPO (PCT)
Prior art keywords
airbag device
curtain airbag
head
slit
occupant
Prior art date
Application number
PCT/JP2007/072644
Other languages
English (en)
Japanese (ja)
Inventor
Daisuke Sato
Toshikazu Akabane
Mitsuo Nogami
Hideho Fukuda
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 JP2008546966A priority Critical patent/JP5004966B2/ja
Publication of WO2008065964A1 publication Critical patent/WO2008065964A1/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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2342—Tear seams
    • 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

Definitions

  • the present invention for example, when a high load is applied in the direction of the side of the vehicle body, such as during a collision from the side of the vehicle (hereinafter abbreviated as a side collision), the plurality of chambers are arranged in a curtain shape.
  • the present invention relates to a curtain airbag device that inflates and deploys to protect a passenger's head.
  • curtain airbag device force S that inflates and deploys a plurality of chambers in a curtain shape along the side door glass when a high load is applied in the side direction of the vehicle body, has been installed in automobiles. Yes. If this curtain airbag device is installed, the head of an occupant seated in the front seat can be effectively protected, for example, even when a heavy load is applied in the lateral direction of the vehicle body.
  • the conventional curtain airbag device has a configuration in which all of the vertically long chambers are in direct communication with the duct so that the gas from the inflator can be smoothly supplied to the chamber through the duct. It was a common thing (for example, Patent Documents 1 and 2).
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2003-231452
  • Patent Document 2 Japanese Patent Laid-Open No. 2004-231177
  • a part of the chamber that catches the entrance of the head part is pendulum only in the vehicle width direction (horizontal direction) with vehicle mounting portions provided at the upper part and the front part as fulcrums. Move to the shape.
  • FIG. 7B 1 in FIG. 7 (b) is an air bag which is composed of a duct 2 and a chamber 1 and receives the entry of the head Ph of the occupant P.
  • the problem to be solved by the present invention is that the conventional curtain airbag device has a side impact, The amount of deflection of a part of the chamber when the head is received is small. In addition, since the amount of deflection of a part of the chamber is small, it is difficult to increase the energy absorption to the head to a satisfactory level when rolling over.
  • the curtain airbag device of the present invention has been made from such a viewpoint, and in the case of a side collision, the amount of deflection of a part of the chamber when the head is received is increased, and the occupant is in the bent portion. To prevent the passengers from moving greatly in the passenger compartment. Then, the occupant is held in the bent portion, and energy absorption can be sufficiently performed.
  • the curtain airbag device of the present invention includes:
  • a curtain airbag device comprising an airbag composed of a plurality of chambers that is supplied through a duct with gas ejected from the inflator and inflated and deployed between an occupant's head and an inner side surface of a passenger compartment,
  • the main feature is that a weakened portion extending substantially parallel to the longitudinal direction of the airbag is provided.
  • the weak portion is provided at least where the occupant's head is positioned, so that the head can be reliably received in the vicinity of part of the chamber. .
  • the fragile portion may be an elongated opening such as a slit or a small elongated opening such as a perforation, or a combination of the slit or the perforation. .
  • the use of such slits and perforations is desirable because when the occupant enters the airbag, the amount of flexure increases because the openings expand more reliably.
  • a reinforcing portion is provided at the longitudinal end of the slit or perforation. It is desirable to have it.
  • This reinforcing portion is formed by sewing so as not to damage the occupant's head. Things are desirable. Furthermore, in order to improve the passenger's cabin interior holding performance, it is desirable to cover at least part of the slits or perforations by sewing an elastic film made of rubber or the like by sewing. By doing so, the occupant's restraining and holding performance is further improved, and the energy absorption is also improved.
  • upper is a term including “upper” or “upper” as a portion or direction located in the direction of the ceiling of the vehicle relative to a certain part
  • a part or direction that is located in the vehicle floor direction relative to a certain part is expressed as a term including “down” or “down”.
  • a weak portion extending substantially parallel to the longitudinal direction of the airbag is provided between the duct and the chamber, etc., when the head is received by a part of the chamber at the time of a side collision, etc.
  • the chamber portion can be moved substantially horizontally in the vehicle width direction.
  • FIG. 1 is a view showing a first example of an airbag constituting the curtain airbag device of the present invention.
  • FIG. 2 is a diagram for explaining the effect of the curtain airbag device of the present invention, in which ⁇ shows a state in which the airbag is inflated and deployed at the time of a side collision, and FIG. It is the figure which showed the state which the head part hit
  • FIG. 3 is a diagram for explaining the effect of the curtain airbag device of the present invention.
  • FIG. 4 is a view showing a second example of the airbag constituting the curtain airbag device of the present invention.
  • FIG. 5 is a view showing a third example of the airbag constituting the curtain airbag device of the present invention.
  • FIG. 6 is a view showing a fourth example of the airbag constituting the curtain airbag device of the present invention. is there.
  • FIG. 7 (a) is a side view of the automobile, (b) is a cross-sectional view taken along the line AA in Fig. (A), and the occupant's head is attached to the airbag inflated and deployed by the operation of the conventional curtain airbag device. It is a figure explaining the state where the part hit.
  • the conventional curtain airbag device has a sufficient amount of energy absorption to the head when it rolls over because the amount of deflection of a part of the chamber when the head is received at the side collision is small. In some cases, it is difficult to increase.
  • the present invention has an object of increasing energy absorption to the head to a sufficient level, such as when the vehicle rolls over during a side collision, and extends substantially parallel to the longitudinal direction of the airbag between the duct and the chamber. This is realized by providing a vulnerable part.
  • the curtain airbag device 10 of the present invention is inflated and deployed by an inflator (not shown) and a high-pressure gas ejected from the inflator, for example, for an occupant seated in a front seat and a rear seat.
  • the configuration includes an airbag 11 that protects the head.
  • the airbag 11 includes a plurality of chambers 13a to 13f that are inflated and deployed by the gas in the airbag body 12, and a duct that guides the gas to the plurality of chambers 13a to 13f. 14 and vehicle mounting portions 15a to 15h are arranged.
  • the inflator is installed, for example, on a roof side rail portion of a passenger compartment, and a sensor installed near the lower end portion of the B pillar detects a high load exceeding a predetermined value acting on a vehicle body side portion such as a side collision. In response to the signal from the sensor, high pressure gas is ejected.
  • the airbag 11 is stored in, for example, a roof side rail portion of a passenger compartment in a state of being folded in a substantially vertical direction to be elongated. Then, the high-pressure gas ejected from the inflator is supplied through the gas inlet 14 a of the duct 14.
  • the curtain airbag device 10 of the present invention has a longitudinal direction of the airbag 11 (in a state where it is installed in a vehicle) between the data 14 and the chambers 13a to 13d, for example, as shown in FIG. Then, a slit 16a (fragile portion) extending substantially parallel to the vehicle longitudinal direction) is provided.
  • the curtain airbag device 10 of the present invention is provided with the slit 16a, so that when the head portion Ph is received by the chambers 13a to 13d at the time of a side collision, for example, as shown in FIG. In addition, it becomes possible to move horizontally with a large deflection in the vehicle width direction.
  • FIG. 3 shows the result of a simulation performed to confirm the effect of the curtain airbag device 10 shown in FIG.
  • Figure 3 shows that a hemispherical metal block with a diameter of 165mm and a weight of 18.3kg was dropped from 2m above (360 joules (360 joules) in order to reproduce the situation where an adult male was released outside the car.
  • J) is a diagram showing the results of the case.
  • the vertical axis in FIG. 3 represents the acceleration applied to the dropped hemispherical metal mass by the airbag, and the horizontal axis represents the window frame with the position 0, the “+” side is the vehicle exterior side, and the “one” side is the vehicle interior side. Indicates the distance.
  • the broken line shows how energy is absorbed when any measures are taken! /, !
  • the solid line shows the energy absorption when the curtain airbag device 10 shown in Fig. 1 is installed. It shows the state of collection.
  • Fig. 3 the diagram that falls more downwards indicates that the energy absorption is greater. In addition, if the diagram crosses the horizontal axis “0” and there is no significant energy absorption on the “+” side, it indicates that the occupant is actually thrown out of the vehicle.
  • an occupant seated in the rear seat is also weak between the duct 14 and the chambers 13e to 13f as shown in FIG. 4 in order to further improve the protection performance of the head.
  • a slit 16b similar to the above may be provided as a part.
  • the air bag 11 has the chambers 13a to 13d not shown in FIGS. 1 and 4; the upper chamber 13 & 11 to 13 £ 11 and the lower chamber 13 & (1 to 13 £ (1). It may be configured.
  • the slits 16a and 16b are provided with the upper chambers 13au to 13fu and the lower chamber. It may be provided between 13ad and 13fd.
  • perforations may be provided instead of the slits 16a and 16b.
  • a rubber film which is a thin elastic body, is stitched at the upper and lower portions of the slit or perforation so as to cover, for example, at least a part of the slit or perforation that is a fragile portion.
  • it may be provided by adhesion or the like. In this case, when the occupant jumps into the airbag and tries to bend it greatly, the elastic body can obtain a larger amount of energy absorption.
  • the elastic body is not limited to rubber, and is suitably suitable for providing an appropriate elastic force. Is used.
  • the airbag 11 may protect only the head of an occupant seated in the front seat when applied to a two-seater car.
  • the curtain airbag device of the present invention is used by being installed in an automobile.
  • the curtain airbag apparatus of the present invention can be installed on a vehicle such as an aircraft or a ship other than the automobile, and the same effect is exhibited.

Landscapes

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

Abstract

[problèmes] augmenter la quantité de déflection d'une partie chambre lorsque celle-ci reçoit la tête d'un occupant en cas de collision latérale. [moyens permettant de résoudre ces problèmes] Cette invention concerne un ensemble airbag rideaux (10) comprenant un coussin de sécurité gonflable (11) pourvu d'un gonfleur et de plusieurs chambres (13a-13f) alimentées par du gaz éjecté depuis le gonfleur à travers un conduit (14), lesquelles chambres sont gonflées et déployées entre la tête (Ph) d'un occupant (P) et la surface intérieure de l'habitacle d'un véhicule. Une découpe (16a), par exemple, est ménagée entre le conduit (14) et les chambres (13a-13d), laquelle s'étend généralement parallélement à la longueur du coussin de sécurité gonflable (11). Ainsi, la partie chambre étant mobile de manière généralement horizontale dans le sens latéral du véhicule lorsque la tête est reçue par la partie chambre lors d'une collision latérale, la quantité de déflection de la partie chambre est augmentée afin d'améliorer les performances de protection de la tête de l'ensemble airbag.
PCT/JP2007/072644 2006-11-30 2007-11-22 Ensemble airbag rideaux WO2008065964A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008546966A JP5004966B2 (ja) 2006-11-30 2007-11-22 カーテンエアバッグ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006323819 2006-11-30
JP2006-323819 2006-11-30

Publications (1)

Publication Number Publication Date
WO2008065964A1 true WO2008065964A1 (fr) 2008-06-05

Family

ID=39467755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/072644 WO2008065964A1 (fr) 2006-11-30 2007-11-22 Ensemble airbag rideaux

Country Status (2)

Country Link
JP (1) JP5004966B2 (fr)
WO (1) WO2008065964A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011082016A1 (fr) * 2009-12-29 2011-07-07 Key Safety Systems, Inc. Airbag doté d'une fente située dans une région de bordure
JP2016124498A (ja) * 2015-01-07 2016-07-11 芦森工業株式会社 エアバッグ
JP2016124497A (ja) * 2015-01-07 2016-07-11 芦森工業株式会社 エアバッグ
WO2020059733A1 (fr) 2018-09-20 2020-03-26 株式会社松屋アールアンドディ Dispositif de couture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003231452A (ja) * 2002-02-12 2003-08-19 Toyota Motor Corp 頭部保護エアバッグ装置
JP2003327067A (ja) * 2002-03-08 2003-11-19 Toyoda Gosei Co Ltd 頭部保護エアバッグ装置
JP2004231177A (ja) * 2003-01-29 2004-08-19 Autoliv Development Ab エアバッグにおける又はエアバッグに関する改良
JP2007015535A (ja) * 2005-07-07 2007-01-25 Toyota Motor Corp 頭部保護エアバッグ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003231452A (ja) * 2002-02-12 2003-08-19 Toyota Motor Corp 頭部保護エアバッグ装置
JP2003327067A (ja) * 2002-03-08 2003-11-19 Toyoda Gosei Co Ltd 頭部保護エアバッグ装置
JP2004231177A (ja) * 2003-01-29 2004-08-19 Autoliv Development Ab エアバッグにおける又はエアバッグに関する改良
JP2007015535A (ja) * 2005-07-07 2007-01-25 Toyota Motor Corp 頭部保護エアバッグ装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011082016A1 (fr) * 2009-12-29 2011-07-07 Key Safety Systems, Inc. Airbag doté d'une fente située dans une région de bordure
US9150184B2 (en) 2009-12-29 2015-10-06 Key Safety Systems, Inc. Air bag having a slit in a border region
JP2016124498A (ja) * 2015-01-07 2016-07-11 芦森工業株式会社 エアバッグ
JP2016124497A (ja) * 2015-01-07 2016-07-11 芦森工業株式会社 エアバッグ
WO2020059733A1 (fr) 2018-09-20 2020-03-26 株式会社松屋アールアンドディ Dispositif de couture
US11427944B2 (en) 2018-09-20 2022-08-30 Matsuya R&D Co., Ltd. Sewing device

Also Published As

Publication number Publication date
JP5004966B2 (ja) 2012-08-22
JPWO2008065964A1 (ja) 2010-03-04

Similar Documents

Publication Publication Date Title
EP2988975B1 (fr) Sangle supérieure pour coussin de sécurité gonflable à rideau
WO2012111073A1 (fr) Dispositif de protection d'occupant
EP2617607B1 (fr) Agencement d'airbag
JP5962602B2 (ja) 前席エアバッグシステム
US9283918B2 (en) Curtain airbag
JP4603439B2 (ja) ロールオーバ保護装置
KR20080042612A (ko) 자동차용 커튼에어백의 전개 유도장치
JPH03281459A (ja) 車体側部のエネルギ吸収構造
JP2000507183A (ja) 乗用車の側方範囲のための膨らまし可能な頭保護装置
JP5004966B2 (ja) カーテンエアバッグ装置
JP4811169B2 (ja) 車体構造
JP4518468B2 (ja) ボディ構造と側面衝突保護装置とを備えた自動車
EP1541426B1 (fr) Protection de choc et son procédé
JP3941398B2 (ja) 車両の内装材構造
JP2921996B2 (ja) 車体側部のエネルギ吸収構造
KR102263721B1 (ko) 동승석 에어백 장치
JP4987013B2 (ja) カーテンエアバッグ装置
JP5174165B2 (ja) カーテンエアバッグ装置
JP4721987B2 (ja) 頭部保護エアバッグ装置
JP2008195190A (ja) 車両用エアバッグ装置
JP2018171988A (ja) カーテンエアバッグ装置
JP6390487B2 (ja) 車両用乗員拘束装置
JPH061027U (ja) 自動車のエアバッグ装置
KR101627120B1 (ko) 차량용 에어백
JP2016043712A (ja) 車両用エアバッグ装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07832373

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008546966

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07832373

Country of ref document: EP

Kind code of ref document: A1