JP3558866B2 - Airbag device - Google Patents

Airbag device Download PDF

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Publication number
JP3558866B2
JP3558866B2 JP11188998A JP11188998A JP3558866B2 JP 3558866 B2 JP3558866 B2 JP 3558866B2 JP 11188998 A JP11188998 A JP 11188998A JP 11188998 A JP11188998 A JP 11188998A JP 3558866 B2 JP3558866 B2 JP 3558866B2
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Japan
Prior art keywords
gas
airbag
chamber
housing
gas supply
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JP11188998A
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Japanese (ja)
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JPH11301403A (en
Inventor
正利 田中
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Daihatsu Motor Co Ltd
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Daihatsu Motor Co Ltd
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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
    • B60R21/233—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
    • B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents
    • B60R2021/23332—Inner walls crating separate compartments, e.g. communicating with vents using independent bags, one within the other
    • 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
    • B60R21/263—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 using a variable source, e.g. plural stage or controlled output
    • B60R2021/2633—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 using a variable source, e.g. plural stage or controlled output with a plurality of inflation levels
    • 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
    • B60R21/264—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 using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—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 using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B60R2021/2648—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 using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder comprising a plurality of combustion chambers or sub-chambers

Landscapes

  • Air Bags (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は自動車の衝突時の衝撃から乗員を保護するエアバック装置に関するものである。
【０００２】
【従来の技術】
従来から種々の構成のエアバック装置が提案されており、例えば助手席の前部に配置されるエアバック装置として、図３、図４に示すような構成のものが知られている。
【０００３】
図３において、エアバック装置３１は折り畳み状態で筐体３２内に収納されたエアバッグ３３とエアバッグ３３内にガスを吹き出して膨出させるインフレータ３４にて構成されている。インフレータ３４としては、図４に示すような２段インフレータ３５が好適なものとして用いられている。
【０００４】
図４において、２段インフレータ３５は円筒状のハウジング３６を仕切壁３７にて軸芯方向一側の第１のガス発生室３８と他側の第２ガス発生室３９に区画し、各ガス発生室３８、３９の軸心部にガス発生ペレット４０を収納し、周壁内面にディフューザ４１を配置し、周壁に適当に分散させて複数のガス吹出し穴４２を形成し、ハウジング３６の両端面に第１のガス発生室３８と第２ガス発生室３９の点火装置であるスクイブ４３、４４を装着して構成されている。
【０００５】
このエアバック装置３１は、衝撃（加速度）の大きさ等に応じてＥＣＵにてスクイブ４３、４４を点火制御して作動される。加速度が比較的小さい場合には先にスクイブ４３を点火して第１のガス発生室３８からガスを吹き出させた後、僅かに遅れてスクイブ４４を点火して第２のガス発生室３９からもガスを吹き出させることにより、図５の曲線Ａの如くエアバッグ３３内の圧力を当初ゆっくり上昇させた後に本格的に上昇させている。一方、加速度が大きい場合には両スクイブ４３、４４を同時に点火して第１と第２のガス発生室３８、３９から一挙にガスを吹き出させることにより、図５の曲線Ｂの如くエアバッグ３３内の圧力を急激に上昇させている。
【０００６】
このように衝突時に適当なタイミングでスクイブ４３、４４を点火してエアバッグ３３内にガスを吹き出すことによってエアバッグ３３内の圧力が図５の曲線Ａ又はＢの如く圧力が上昇し、図６における矢印Ｃの如くエアバッグ３３が膨らんで乗員Ｍの頭部に対してクッション作用を奏し、乗員Ｍの保護が図られる。
【０００７】
【発明が解決しようとする課題】
ところが、一般の事故においては最初に対向車と１回目の衝突をした後、電柱やガードレールに２回目の衝突が発生するような多重事故の場合があるが、上記構成の従来のエアバック装置では１回目の衝突でエアバックが展開してしまい、２回目の衝突ではエアバックが作用しないという問題があった。
【０００８】
なお、特開平３−９２４５１号公報には、各々開口部を有する独立した左右のガス供給室と中央室を設け、各ガス供給室にインフレータに設けられた複数のガス発生室を対応させたものが開示されているが、エアバッグ展開初期に側方展開を先行させて乗員の左右拘束性を図りつつエアバッグ中央部でのクッション作用が得られるようにしたもので、上記問題を解消できるものではない。
【０００９】
本発明は、上記従来の問題点に鑑み、１回目の衝突の後に２回目の衝突が発生するような多重事故の場合に乗員の安全を図ることができるエアバッグ装置を提供することを目的とする。
【００１０】
【課題を解決するための手段】
本発明のエアバッグ装置は、筐体に形成された開口部を囲むようにして折り畳み状態で筐体に接合されたエアバッグと、筐体内に配置されてエアバッグ内に所要時にガスを吹き出すインフレータとを備えたエアバッグ装置において、筐体内を仕切部材にてそれぞれの開口部を有する第１のガス供給室と第２のガス供給室とに区画し、インフレータに第１のガス供給室にガスを吹き出す第１のガス発生室と第２のガス供給室にガスを吹き出す第２のガス発生室を設けるとともに第１のガス発生室を第１のガス供給室内に、第２のガス発生室を第２のガス供給室内にそれぞれ配置し、第１のガス発生室の開口部を囲むようにして第１のエアバッグを筐体に接合し、第１のガス発生室の開口部および第２のガス発生室の開口部の全体を囲むとともに第１のエアバッグを内部に収納するようにして第２のエアバッグを筐体に接合し、かつ１回目の衝突の検出時に第１のガス発生室から第１のエアバッグ内にガスを吹き出し、２回目の衝突の検出時に第２のガス発生室から第２のエアバッグ内にガスを吹き出すように構成したことを特徴とする。
【００１１】
本発明によれば、１回目の衝突時に第１のエアバッグを展開させ、２回目の衝突時に第２のエアバッグを展開させることにより、衝突毎に各エアバッグが適正に展開されてエアバッグの作用が確実に得られ、かつ第２のエアバッグ内に第１のエアバッグが配置されていることによってほぼ同一位置でエアバッグにて乗員を保護できる。
【００１２】
【発明の実施の形態】
以下、本発明のエアバッグ装置の一実施形態について、図１、図２を参照して説明する。
【００１３】
１はエアバッグ装置、２はその筐体である。筐体２の内部は仕切部材３にて第１のガス供給室４と第２のガス供給室５とに区画され、かつ筐体２の一側面にそれぞれの第１の開口部６と第２の開口部７が形成されている。第１の開口部６の周縁部には第１のエアバッグ８が接合され、第１と第２の両方の開口部６、７の周囲を取り囲むように第２のエアバッグ９が接合され、第１のエアバッグ８は第２のエアバッグ９の内部に収納されている。図２において、８ａ、９ａはそれぞれ第１と第２のエアバッグ８、９の側面の適所に開口されたベントホールであり、エアバッグ内のガスをゆっくりと外部に放出する。
【００１４】
筐体２内には、第１のガス供給室４と第２のガス供給室５に対してそれぞれガスを吹き出す第１のガス発生室１１と第２のガス発生室１２を備えたインフレータ１０が配設されている。インフレータ１０においては、略円筒状のハウジング１３内が、中間部の仕切壁１４にて軸芯方向に並列する第１と第２のガス発生室１１、１２に区画されており、これら第１と第２のガス発生室１１、１２の周壁にはそれぞれ複数のガス吹き出し穴１５、１６が分散形成されるとともにその周壁の内側にディフューザ１７が配設されている。両ガス発生室１１、１２の軸芯部にガス発生ペレット１８が収容されている。また、ハウジング１３の両端面に第１と第２のガス発生室１１、１２内に突出するようにスクイブ１９、２０が配設され、両スクイブ１９、２０は筐体２の外面に突出されている。
【００１５】
以上の構成において、自動車が１回目に衝突したとき、ＥＣＵにてスクイブ１９が点火されて第１のガス発生室１１からガスが発生し、第１のガス供給室４内とその開口部６から第１のエアバッグ８（例えば容量４０〜６０ｌ）内にガスが吹き出し、第１のエアバッグ８が膨らみ、乗員が保護される。また、このとき同時に折り畳まれていた第２のエアバッグ９（例えば容量１００〜１２０ｌ）も半分展開した状態となっている。
【００１６】
その後自動車が２回目の衝突をすると、ＥＣＵにてスクイブ２０が点火されて第２のガス発生室１２からガスが発生し、第２のガス供給室５内とその開口部７から第２のエアバッグ９内にガスが吹き出し、第２のエアバッグ９が先に半分展開した状態から完全に膨らみ、乗員が保護される。また、その際に第２のエアバッグ９はすでに半分展開しているので勢い良く乗員に向かって膨らむことはなく、乗員の顔面に傷害を与える恐れはない。また、第２のエアバッグ９内に第１のエアバッグ８が配置されていることによってほぼ同一位置でエアバッグにて乗員を保護できる。
【００１７】
かくして、本実施形態によれば衝突が２回起こる多重事故の場合でも乗員を確実に保護することができる。さらに、従来、スクイブ１９、２０を着火させる２０〜５０ｋｍ／ｈの速度での衝突より極めて速い５０〜１００ｋｍ／ｈの速度での衝突時に、ＥＣＵにて両スクイブ１９、２０を同時に着火させるように構成すると、超高速事故でも乗員保護性能を確保することができる。
【００２０】
【発明の効果】
本発明によれば、１回目の衝突時に第１のエアバッグを展開させ、２回目の衝突時に第２のエアバッグを展開させることにより、衝突毎に各エアバッグが適正に展開されてエアバッグの作用が確実に得られ、かつ第２のエアバッグ内に第１のエアバッグが配置されていることによってほぼ同一位置でエアバッグにて乗員を保護できる。
【図面の簡単な説明】
【図１】本発明のエアバッグ装置の一実施形態を示し、（ａ）はエアバッグを展開した状態を模式的に示した断面図、（ｂ）はインフレタの斜視図である。
【図２】同実施形態の筐体とエアバッグの分解斜視図である。
【図３】従来例のエアバッグ装置の全体斜視図である。
【図４】同従来例におけるインフレータを示し、（ａ）は断面図、（ｂ）は斜視図である。
【図５】同従来例におけるエアバッグ作動時の圧力変化を示すグラフである。
【図６】同従来例におけるエアバッグの動作説明図である。
【符号の説明】
１ エアバッグ装置
２ 筐体
３ 仕切部材
４ 第１のガス供給室
５ 第２のガス供給室
６ 第１の開口部
７ 第２の開口部
８ 第１のエアバッグ
９ 第２のエアバッグ
１０ インフレータ
１１ 第１のガス発生室
１２ 第２のガス発生室[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an airbag device that protects an occupant from the impact of a vehicle collision.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various types of airbag devices have been proposed. For example, as an airbag device disposed at a front portion of a passenger seat, one having a configuration illustrated in FIGS. 3 and 4 is known.
[0003]
In FIG. 3, the airbag device 31 includes an airbag 33 housed in a housing 32 in a folded state, and an inflator 34 for blowing gas into the airbag 33 to inflate the airbag. As the inflator 34, a two-stage inflator 35 as shown in FIG. 4 is preferably used.
[0004]
In FIG. 4, a two-stage inflator 35 divides a cylindrical housing 36 into a first gas generating chamber 38 on one side in the axial direction and a second gas generating chamber 39 on the other side by a partition wall 37. The gas generating pellets 40 are housed in the axial centers of the chambers 38 and 39, the diffuser 41 is arranged on the inner surface of the peripheral wall, and a plurality of gas blowing holes 42 are formed by appropriately dispersing the gas on the peripheral wall. The squibs 43 and 44 as igniters for the first gas generation chamber 38 and the second gas generation chamber 39 are mounted.
[0005]
The airbag device 31 is operated by controlling ignition of the squibs 43 and 44 by the ECU according to the magnitude of impact (acceleration) and the like. When the acceleration is relatively small, the squib 43 is ignited first to blow out gas from the first gas generation chamber 38, and then the squib 44 is ignited with a slight delay and the second gas generation chamber 39 is also ignited. By blowing out the gas, the pressure in the airbag 33 is first slowly increased as shown by the curve A in FIG. On the other hand, when the acceleration is high, the squibs 43 and 44 are simultaneously ignited to blow out the gas from the first and second gas generating chambers 38 and 39 at a time, so that the airbag 33 as shown by the curve B in FIG. The pressure inside is rapidly increasing.
[0006]
In this way, by igniting the squibs 43 and 44 at an appropriate timing at the time of collision and blowing gas into the airbag 33, the pressure in the airbag 33 increases as shown by the curve A or B in FIG. The airbag 33 is inflated as shown by the arrow C in FIG. 4 to exert a cushioning effect on the head of the occupant M, thereby protecting the occupant M.
[0007]
[Problems to be solved by the invention]
However, in a general accident, there may be a multiple accident in which a first collision with an oncoming vehicle occurs first and then a second collision with a utility pole or a guardrail occurs. There was a problem that the airbag was deployed in the first collision and the airbag did not work in the second collision.
[0008]
Japanese Patent Application Laid-Open No. 3-92451 discloses a structure in which independent left and right gas supply chambers each having an opening and a central chamber are provided, and each gas supply chamber corresponds to a plurality of gas generation chambers provided in an inflator. However, it is possible to solve the above-mentioned problem by obtaining a cushioning effect at the center portion of the airbag while securing lateral restraint of the occupant by leading the lateral deployment at an early stage of the deployment of the airbag. is not.
[0009]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an airbag device capable of ensuring the safety of an occupant in a multiple accident in which a second collision occurs after a first collision. I do.
[0010]
[Means for Solving the Problems]
The airbag device of the present invention includes an airbag that is joined to the housing in a folded state so as to surround an opening formed in the housing, and an inflator that is disposed in the housing and blows gas into the airbag when required. In the provided airbag device, the inside of the housing is partitioned by a partition member into a first gas supply chamber and a second gas supply chamber having respective openings, and gas is blown out to the inflator into the first gas supply chamber. A second gas generation chamber for blowing gas into the first gas generation chamber and the second gas supply chamber is provided, the first gas generation chamber is provided in the first gas supply chamber, and the second gas generation chamber is provided in the second gas supply chamber. each disposed in the gas supply chamber, a first air bag and joined to the housing so as to surround the opening of the first gas generating chamber, the first gas generating chamber opening and the second gas generating chamber It surrounds the entire opening The second air bag is bonded to the housing so as to house one of the air bag therein, and blowing gas from the first gas generating chamber upon detection of the first collision in the first airbag, The gas is blown out from the second gas generation chamber into the second airbag when the second collision is detected.
[0011]
According to the present invention, by deploying the first airbag at the time of the first collision and deploying the second airbag at the time of the second collision, each airbag is properly deployed at each collision, action reliably obtained in, and Ru can protect an occupant in the airbag at substantially the same position by the first air bag into the second air bag is disposed.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of an airbag device of the present invention will be described with reference to FIGS.
[0013]
1 is an airbag device, and 2 is its housing. The interior of the housing 2 is partitioned into a first gas supply chamber 4 and a second gas supply chamber 5 by a partition member 3, and the first opening 6 and the second Opening 7 is formed. A first airbag 8 is joined to the periphery of the first opening 6, and a second airbag 9 is joined so as to surround the periphery of both the first and second openings 6, 7. The first airbag 8 is housed inside the second airbag 9. In FIG. 2, reference numerals 8a and 9a denote vent holes opened at appropriate positions on the side surfaces of the first and second airbags 8 and 9, respectively, and slowly discharge gas in the airbags to the outside.
[0014]
An inflator 10 having a first gas generating chamber 11 and a second gas generating chamber 12 for blowing gas to the first gas supply chamber 4 and the second gas supply chamber 5 is provided in the housing 2. It is arranged. In the inflator 10, the inside of the substantially cylindrical housing 13 is partitioned into first and second gas generating chambers 11 and 12 which are arranged in the axial direction by a partition wall 14 at an intermediate portion. A plurality of gas blowing holes 15 and 16 are respectively formed on the peripheral walls of the second gas generating chambers 11 and 12, and a diffuser 17 is provided inside the peripheral walls. Gas generating pellets 18 are accommodated in the shaft cores of both gas generating chambers 11 and 12. In addition, squibs 19 and 20 are provided on both end surfaces of the housing 13 so as to protrude into the first and second gas generating chambers 11 and 12, and both squibs 19 and 20 protrude from the outer surface of the housing 2. I have.
[0015]
In the above configuration, when the vehicle collides for the first time, the squib 19 is ignited by the ECU and gas is generated from the first gas generation chamber 11, and the gas is generated from the first gas supply chamber 4 and the opening 6 thereof. The gas is blown into the first airbag 8 (for example, a capacity of 40 to 60 l), and the first airbag 8 is inflated to protect the occupant. At this time, the second airbag 9 (for example, a capacity of 100 to 120 l) that has been folded at the same time is also in a state of being half-deployed.
[0016]
Thereafter, when the vehicle collides for the second time, the squib 20 is ignited by the ECU and gas is generated from the second gas generation chamber 12, and the second air is supplied from the second gas supply chamber 5 and the opening 7 thereof. The gas is blown out into the bag 9 and the second airbag 9 is completely inflated from the state where it is first half-deployed, thereby protecting the occupant. Also, at this time, since the second airbag 9 has already been half deployed, the second airbag 9 does not inflate vigorously toward the occupant, and there is no risk of injuring the occupant's face. Further, since the first airbag 8 is disposed in the second airbag 9, the occupant can be protected by the airbag at substantially the same position.
[0017]
Thus, according to the present embodiment, the occupant can be reliably protected even in the case of a multiple accident in which a collision occurs twice. Further, in a conventional collision at a speed of 50 to 100 km / h, which is much faster than a collision at a speed of 20 to 50 km / h for igniting the squibs 19 and 20, the ECU ignites both the squibs 19 and 20 simultaneously. With this configuration, occupant protection performance can be ensured even in an ultra-high-speed accident.
[0020]
【The invention's effect】
According to the present invention, by deploying the first airbag at the time of the first collision and deploying the second airbag at the time of the second collision, each airbag is properly deployed at each collision, action reliably obtained in, and Ru can protect an occupant in the airbag at substantially the same position by the first air bag into the second air bag is disposed.
[Brief description of the drawings]
FIG. 1 shows an embodiment of an airbag device of the present invention, in which (a) is a cross-sectional view schematically showing a state in which an airbag is deployed, and (b) is a perspective view of an inflator.
FIG. 2 is an exploded perspective view of the housing and the airbag of the embodiment.
FIG. 3 is an overall perspective view of a conventional airbag device.
4A and 4B show an inflator according to the conventional example, wherein FIG. 4A is a sectional view and FIG. 4B is a perspective view.
FIG. 5 is a graph showing a pressure change when the airbag is activated in the conventional example.
FIG. 6 is an explanatory diagram of an operation of the airbag in the conventional example.
[Explanation of symbols]
Reference Signs List 1 airbag device 2 housing 3 partition member 4 first gas supply chamber 5 second gas supply chamber 6 first opening 7 second opening 8 first airbag 9 second airbag 10 inflator 11 First gas generation chamber 12 Second gas generation chamber

Claims (1)

筐体に形成された開口部を囲むようにして折り畳み状態で筐体に接合されたエアバッグと、筐体内に配置されてエアバッグ内に所要時にガスを吹き出すインフレータとを備えたエアバッグ装置において、筐体内を仕切部材にてそれぞれの開口部を有する第１のガス供給室と第２のガス供給室とに区画し、インフレータに第１のガス供給室にガスを吹き出す第１のガス発生室と第２のガス供給室にガスを吹き出す第２のガス発生室を設けるとともに第１のガス発生室を第１のガス供給室内に、第２のガス発生室を第２のガス供給室内にそれぞれ配置し、第１のガス発生室の開口部を囲むようにして第１のエアバッグを筐体に接合し、第１のガス発生室の開口部および第２のガス発生室の開口部の全体を囲むとともに第１のエアバッグを内部に収納するようにして第２のエアバッグを筐体に接合し、かつ１回目の衝突の検出時に第１のガス発生室から第１のエアバッグ内にガスを吹き出し、２回目の衝突の検出時に第２のガス発生室から第２のエアバッグ内にガスを吹き出すように構成したことを特徴とするエアバッグ装置。An airbag device comprising: an airbag joined to a housing in a folded state so as to surround an opening formed in the housing; and an inflator disposed in the housing and blowing gas into the airbag when required. The body is divided into a first gas supply chamber and a second gas supply chamber each having an opening by a partition member, and a first gas generation chamber for blowing gas to the first gas supply chamber to the inflator and a second gas supply chamber. A second gas generation chamber for blowing gas is provided in the second gas supply chamber, the first gas generation chamber is disposed in the first gas supply chamber, and the second gas generation chamber is disposed in the second gas supply chamber. Joining the first airbag to the housing so as to surround the opening of the first gas generation chamber, and surrounding the entire opening of the first gas generation chamber and the opening of the second gas generation chamber; 1 airbag inside The second air bag so as to be joined to the housing, and blowing gas from the first gas generating chamber upon detection of the first collision in the first airbag, the upon detection of the second collision An airbag device characterized in that gas is blown out from the second gas generation chamber into the second airbag.
JP11188998A 1998-04-22 1998-04-22 Airbag device Expired - Fee Related JP3558866B2 (en)

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JP3558866B2 true JP3558866B2 (en) 2004-08-25

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Publication number Priority date Publication date Assignee Title
JP4365285B2 (en) * 2004-08-24 2009-11-18 トヨタ自動車株式会社 Side airbag device
US8480122B2 (en) 2009-07-24 2013-07-09 Toyota Jidosha Kabushiki Kaisha Airbag device

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