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JPH07117610A - Air bag device - Google Patents

Air bag device

Info

Publication number
JPH07117610A
JPH07117610A JP5308297A JP30829793A JPH07117610A JP H07117610 A JPH07117610 A JP H07117610A JP 5308297 A JP5308297 A JP 5308297A JP 30829793 A JP30829793 A JP 30829793A JP H07117610 A JPH07117610 A JP H07117610A
Authority
JP
Japan
Prior art keywords
airbag
air bag
inflator
main body
gas
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
JP5308297A
Other languages
Japanese (ja)
Other versions
JP3070369B2 (en
Inventor
Michio Inoue
道夫 井上
Noriyuki Horiuchi
範之 堀内
Michiyasu Ito
通康 伊藤
Atsushi Hiroshige
敦 広重
Tomoyuki Fukatsu
友之 深津
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.)
Toyota Motor Corp
Toyoda Gosei Co Ltd
Original Assignee
Toyota Motor Corp
Toyoda Gosei Co Ltd
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 Toyota Motor Corp, Toyoda Gosei Co Ltd filed Critical Toyota Motor Corp
Priority to JP5308297A priority Critical patent/JP3070369B2/en
Publication of JPH07117610A publication Critical patent/JPH07117610A/en
Application granted granted Critical
Publication of JP3070369B2 publication Critical patent/JP3070369B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/21Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle side panels, e.g. doors

Landscapes

  • Air Bags (AREA)

Abstract

PURPOSE:To provide such an air bag device that development form of inflation initial stage of an air bag main body becomes gradually thinner in thickness in the width direction of a vehicle and its development direction (stretching direction) runs along the inside face of the door (indoor side wall face). CONSTITUTION:An air bag device is provided with an air bag storage part 15 formed inside of a door panel 13 of a vehicle door, an air bag main body 17 arranged in the air bag storage part 15 in its contracted state, an inflater 20 connected to an air blowing part 19 in its covering state at a base opening part of the air bag main body 17, and a lid 23 for closing an air bag projecting port 21 in inflatingly projecting the air bag main body 17. Storing state of the air bag main body 17 in the air bag storage part 15 is wound in a rolled state.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、車両ドア内に配され、
所定時にインフレータを作動させて、発生するガスによ
り膨出させるエアバッグ本体を備えたエアバッグ装置に
関する。
BACKGROUND OF THE INVENTION The present invention is located within a vehicle door,
The present invention relates to an airbag device including an airbag body that operates an inflator at a predetermined time to inflate the generated gas.

【0002】[0002]

【従来の技術】上記タイプのエアバッグ装置は、車両ド
アのドアパネルの内側に形成されるエアバッグ収納部
と、エアバッグ収納部に収縮状態とされて配されるエア
バッグ本体と、該エアバッグ本体の元部開口部でガス吹
き出し部が囲繞されて接続されるインフレータと、エア
バッグ本体の膨出時のエアバッグ飛び出し口を閉じるリ
ッドとを備えた構成であった。
2. Description of the Related Art An airbag device of the type described above includes an airbag storage portion formed inside a door panel of a vehicle door, an airbag main body arranged in a contracted state in the airbag storage portion, and the airbag. It has a configuration including an inflator in which the gas blowing portion is surrounded by the opening portion of the main body and connected thereto, and a lid that closes the airbag pop-out opening when the airbag main body is inflated.

【0003】そして、上記エアバッグ装置におけるエア
バッグ本体は、一般に蛇腹状に折り畳んで圧縮してエア
バッグ収納部に収納していた。(実開平1−11795
7号、特開平4−46836号、特開平5−16751
・16757号等)
The air bag body in the air bag device is generally folded in a bellows shape, compressed, and housed in the air bag housing portion. (Actual Kaihei 1-111795
7, JP-A-4-46836, JP-A-5-16751
・ 16757 etc.)

【0004】[0004]

【発明が解決しようとする課題】しかし、膨出初期のエ
アバッグ本体の展開形態が、必ずしも望ましい形態とは
言えなかった。
However, the deployed form of the airbag body at the initial stage of bulging has not always been a desirable form.

【0005】即ち、膨出初期において、エアバッグ本体
が車両幅方向に膨らんで厚くなり、かつ、展開方向が車
内側に向かう。
That is, in the initial stage of inflation, the airbag body inflates in the vehicle width direction and becomes thicker, and the deployment direction is directed toward the inside of the vehicle.

【0006】また、上記従来技術においては、専用のイ
ンフレータをドアパネルから突出させて設けてあり、イ
ンフレータのガス吹き出し方向がドアパネルネルに略直
交する方向にあるため、吹き出しに伴う反力がドアパネ
ルに作用する。従って、ステアリングホイール用の汎用
インフレータに比してコスト高になるとともに、ドアパ
ネルの補強構造も大幅な変更を必要とした。
Further, in the above-mentioned prior art, since the exclusive inflator is provided so as to project from the door panel, and the gas blowing direction of the inflator is substantially perpendicular to the door panel flannel, the reaction force accompanying the blowing acts on the door panel. To do. Therefore, the cost is higher than that of a general-purpose inflator for a steering wheel, and the reinforcement structure of the door panel also needs to be significantly changed.

【0007】本発明は、エアバッグ本体の膨出初期の展
開形態が、車両幅方向で厚みにおいて薄くなるととも
に、展開方向(伸び方向)においてドア内面(車内側壁
面)に沿うようにしたエアバッグ装置を提供することを
目的とする。
According to the present invention, the airbag is designed so that the airbag body is inflated in the initial stage of bulging so that the thickness of the airbag body becomes thinner in the vehicle width direction and that the airbag body extends along the inner surface of the door (wall surface on the inner side of the vehicle). The purpose is to provide a device.

【0008】本発明の他の目的は、ドアパネルの構造を
大幅に変更することなく、ステアリングホイール用の汎
用インフレータを適用できるエアバッグ装置を提供する
ことにある。
Another object of the present invention is to provide an airbag device to which a general-purpose inflator for a steering wheel can be applied without significantly changing the structure of the door panel.

【0009】本発明のさらに他の目的は、エアバッグ収
納部の車両前後方向の幅を小さくできるとともに、エア
バッグ本体が展開時に、両側端縁(エッジ)が乗員と干
渉しないエアバッグ装置を提供することにある。
Still another object of the present invention is to provide an air bag device which can reduce the width of the air bag housing in the vehicle front-rear direction and in which both side edges do not interfere with an occupant when the air bag body is deployed. To do.

【0010】[0010]

【課題を解決するための手段】本発明は、上記第一の目
的を下記構成により解決するものである。
The present invention solves the above first object by the following constitution.

【0011】車両ドアのドアパネルの内側に形成される
エアバッグ収納部と、エアバッグ収納部に収縮状態とさ
れて配されるエアバッグ本体と、該エアバッグ本体の元
部開口部でガス吹き出し部が囲繞されて接続されるイン
フレータと、エアバッグ本体の膨出時のエアバッグ飛び
出し口を閉じるリッドとを備えたエアバッグ装置におい
て、エアバッグ本体のエアバッグ収納部での収縮状態
が、ロール状に巻かれたものであることを特徴とする。
An air bag accommodating portion formed inside a door panel of a vehicle door, an air bag main body disposed in a contracted state in the air bag accommodating portion, and a gas blowing portion at an opening portion of the air bag main body. In an airbag device including an inflator that is surrounded and connected, and a lid that closes an airbag pop-out opening when the airbag body is inflated, the contracted state in the airbag storage portion of the airbag body is roll-shaped. It is characterized by being wrapped in.

【0012】本発明の他の一つは、前記第二の目的を下
記構成により解決するものである。
Another object of the present invention is to solve the second object by the following constitution.

【0013】上記第一の発明のエアバッグ装置におい
て、周璧に多数のガス吹き出し孔が形成されたガス吹き
出し部を有する扁平筒状のステアリングホイール用の汎
用インフレータがドアパネルに沿って取付けられ、前記
インフレータには、ガス吹き出し部の略下側半分を隙間
を有して覆うガス流堰板が付設され、該ガス流堰板及び
前記ガス吹き出し部がエアバッグ本体の元部開口部で囲
繞されていることを特徴とする。
In the airbag device according to the first aspect of the present invention, a general-purpose inflator for a steering wheel having a flat tubular shape is attached along a door panel and has a gas blowing portion having a large number of gas blowing holes formed in a peripheral wall. The inflator is provided with a gas flow weir plate that covers a substantially lower half of the gas blowout portion with a gap, and the gas flow weir plate and the gas blowout portion are surrounded by a base opening portion of the airbag body. It is characterized by being

【0014】本発明のさらに他の一つは、前記第三の目
的を下記構成により解決するものである。
Still another object of the present invention is to solve the third object by the following constitution.

【0015】前記第一の発明のエアバッグ装置におい
て、エアバッグ本体が、その展開側面形状は略四辺形
で、その両側端部を車外側に折り曲げ後、ロール状に巻
かれたものであることを特徴とする。
In the airbag device of the first aspect of the invention, the airbag body has a substantially quadrangular shape on its deployed side surface, and is bent in a roll shape after bending both ends of the airbag body to the outside of the vehicle. Is characterized by.

【0016】[0016]

【実施例】以下、本発明の一実施例を、図例に基づいて
詳細に説明をする。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

【0017】(1) 本実施例の概略構成は、車両ドア11
のドアインナーパネル(ドアパネル)13の内側に形成
されるエアバッグ収納部15と、エアバッグ収納部15
に収縮状態とされて配されるエアバッグ本体17と、該
エアバッグ本体17の元部開口部でガス吹き出し部19
が囲繞されて接続されるインフレータ20と、エアバッ
グ本体17の膨出時のエアバッグ飛び出し口21を閉じ
るリッド23を備えている。なお、図例中Gは窓ガラス
である。
(1) The schematic construction of this embodiment is the vehicle door 11
And an airbag storage portion 15 formed inside the door inner panel (door panel) 13 of
The airbag main body 17 disposed in a contracted state in the air bag, and the gas blowing portion 19 at the opening of the main body of the airbag main body 17.
And an inflator 20 that is connected to the air bag main body 17, and a lid 23 that closes the airbag outlet 21 when the airbag body 17 is inflated. In the figure, G is a window glass.

【0018】(2) 本実施例では、下記のような具体的・
特徴的構成を有する。
(2) In this embodiment, the following concrete
It has a characteristic structure.

【0019】エアバッグ収納部15は、インナパネル補
強板13aを介してねじ止めないしリベット止めされた
板金製のバックアップレート25により形成されてい
る。
The air bag accommodating portion 15 is formed by a sheet metal backup rate 25 screwed or riveted through the inner panel reinforcing plate 13a.

【0020】エアバッグ本体17は、ロール状に巻かれ
てエアバッグ収納部15に配されている。このとき、図
例では、エアバッグ本体17の巻き方向が、バッグ本体
17の車内側面を外側巻き面とする構成であるが、逆巻
き、即ち、バッグ本体17の車外側面を外側巻き面とし
てもよい。また、エアバッグ本体17の展開時の側面形
状は、特に限定されないが、通常、略四辺形(図例では
平行四辺形であるが、矩形、逆台形、等であってもよ
い。)に展開(乗員の車外側に対して)するものであ
る。
The airbag body 17 is wound in a roll and arranged in the airbag storage portion 15. At this time, in the illustrated example, the winding direction of the airbag body 17 is such that the inside surface of the bag body 17 is the outside winding surface, but it may be reverse winding, that is, the outside surface of the bag body 17 may be the outside winding surface. . Further, the side shape of the airbag body 17 at the time of deployment is not particularly limited, but it is normally deployed in a substantially quadrilateral shape (a parallelogram in the example, but may be a rectangular shape, an inverted trapezoid, or the like). (To the outside of the passenger's vehicle).

【0021】そして、周璧に多数のガス吹き出し孔19
aが形成されたガス吹き出し部19を有する扁平筒状
(図例では扁平円筒状)のステアリングホイール用の汎
用のインフレータ20がドアインナーパネル13に沿っ
て(ドアインナーパネル13と略平行に)取付けられて
いる。このインフレータ20は、そのガス吹き出し部1
9の略下側半分を隙間を有して覆うガス流堰板27が付
設されている。ここではガス流堰板27は、ガス吹き出
し部19の円形形状に沿わせた一端開口の扁平円筒体を
上方切断した半円形状である。インフレータ20のガス
吹き出し部19とガス流堰板27との隙間は、通常1〜
2mmとする。なお、ガス流堰板27の上面開口方向は、
バッグ本体の展開方向に合わせて、斜め後方へ向くよう
に若干傾斜されている(図1参照)。また、このガス流
堰板27は、エアバッグ本体17と干渉しない範囲内で
半円形の両側に沿って、図例の二点鎖線で示す如く、上
方へ若干延ばしてもよい これらのガス吹き出し部19及びガス流堰板27は、エ
アバッグ本体17の元部開口部で囲繞するように、リテ
ーナ29を介してエアバッグ本体17の元部開口部周縁
とともに、バックアッププレート25にねじ止めないし
リベット止めされている。
A large number of gas blowing holes 19 are provided on the peripheral wall.
A general-purpose inflator 20 for a steering wheel having a flat tubular shape (flat cylindrical shape in the example) having a gas blowing portion 19 in which a is formed is attached along the door inner panel 13 (substantially parallel to the door inner panel 13). Has been. The inflator 20 has the gas blowing section 1
A gas flow dam plate 27 is attached to cover substantially the lower half of 9 with a gap. Here, the gas flow barrier plate 27 has a semicircular shape obtained by cutting upward a flat cylindrical body having one end opening along the circular shape of the gas blowing portion 19. The gap between the gas blowing portion 19 of the inflator 20 and the gas flow dam plate 27 is usually 1 to
2mm The upper surface opening direction of the gas flow barrier plate 27 is
It is slightly inclined so as to be directed obliquely rearward in accordance with the unfolding direction of the bag body (see FIG. 1). The gas flow dam plate 27 may extend slightly upward along both sides of the semicircle within a range where it does not interfere with the airbag body 17, as shown by the chain double-dashed line in the figure. 19 and the gas flow barrier plate 27 are screwed or riveted to the backup plate 25 together with the periphery of the base opening of the airbag body 17 via the retainer 29 so as to be surrounded by the base opening of the airbag body 17. Has been done.

【0022】また、リッド23は、下辺部をヒンジHと
して、車内側に回動して開くようにして、バックアップ
プレート25に取付け板部24を介してリベット止めさ
れ、さらに、インナパネル補強板13aに下側取付フラ
ンジ部23aを介してねじ止めされているいる。
Further, the lid 23 is rivet-fixed to the backup plate 25 via the mounting plate portion 24 so that the lower side portion is hinged H so as to rotate and open inside the vehicle, and further, the inner panel reinforcing plate 13a. Is screwed to the lower mounting flange 23a.

【0023】このとき、リテーナ29は、特開平4−1
66452号、特開平5−16751・16757号公
報における如く円環状であってもよいが、図例の如く、
車両前後方向に伸びた矩形状て、エアバッグ本体17の
下辺の略全長を固定できる構成のものが望ましい。この
構成により、エアバッグ本体17が、展開時、車両前後
方向に振れることなく、エアバッグ展開方向が安定す
る。
At this time, the retainer 29 is the one disclosed in Japanese Patent Laid-Open No. 4-1.
It may have an annular shape as in Japanese Patent No. 66452 and Japanese Patent Laid-Open No. 5-16751 / 16757, but as shown in FIG.
It is desirable to have a rectangular shape extending in the vehicle front-rear direction so that substantially the entire length of the lower side of the airbag body 17 can be fixed. With this configuration, the airbag main body 17 does not swing in the vehicle front-rear direction during deployment, and the airbag deployment direction is stable.

【0024】(3) そして、上記実施例において、さら
に、図4に示す下記態様とすることが望ましい。
(3) Further, in the above embodiment, it is desirable that the following mode shown in FIG. 4 is further adopted.

【0025】エアバッグ本体17が、その展開側面形状
が略四辺形で、その両側端部(車両高さ方向に伸びる
辺)を車外側に折り曲げ後、ロール状に巻いて、エアバ
ッグ収納部15に収納されている。この折り曲げ量b
は、エアバッグの大きさにもよるが、通常、2〜10cm
とする。これにより、エアバッグ本体17の巻き幅が小
さくなり、相対的にエアバッグ収納部15の車両前後方
向の幅を小さくできる。また、エアバッグ本体17の展
開時に、両側端縁(エッジ)が乗員に干渉することがな
い。
The airbag main body 17 has a substantially quadrangular shape on its deployed side surface. Both side ends (sides extending in the vehicle height direction) of the airbag body 17 are bent to the outside of the vehicle, and then wound in a roll to form an airbag storage portion 15. It is stored in. This bending amount b
Usually depends on the size of the airbag, but usually 2-10 cm
And As a result, the winding width of the airbag body 17 is reduced, and the width of the airbag storage portion 15 in the vehicle front-rear direction can be relatively reduced. Further, the two side edges do not interfere with the occupant when the airbag body 17 is deployed.

【0026】また、エアバッグ本体17の展開時の略中
間高さ位置を縫合糸31で縫合して、乗員胸部を保護す
る下室17aと、乗員胸部を保護する上室17bに分割
されている。ここで、縫合糸31は、汎用の合成繊維糸
を使用できるが、下室17aが所定圧に達したとき破断
可能な強度を有するものを使用する。
Further, the airbag body 17 is divided into a lower chamber 17a for protecting the occupant's chest and an upper chamber 17b for protecting the occupant's chest by suturing with a suture 31 at a substantially intermediate height position. . Here, as the suture thread 31, a general-purpose synthetic fiber thread can be used, but a suture thread having a strength capable of breaking when the lower chamber 17a reaches a predetermined pressure is used.

【0027】このように、下室17aと上室17bとに
分割することにより、インフレータからのガスは、ま
ず、下室17aのみに流入する。このため、下室17a
は、内圧上昇が速くて、室分割しない場合に比して短時
間で展開し、ドアにより近い乗員胸部を素早く保護でき
る。また、乗員頭部を保護する上室17b(頭部は胸部
に比してドアから離れているので、所要展開時間は胸部
のそれより若干の余裕がある。)は、下室17aが展開
後、縫合糸31が破断して上室17b内にもガスが流入
することにより展開する。
By thus dividing the lower chamber 17a and the upper chamber 17b, the gas from the inflator first flows into only the lower chamber 17a. Therefore, the lower chamber 17a
The internal pressure rises quickly and deploys in a shorter time than when the room is not divided, and the occupant's chest closer to the door can be protected quickly. Further, the upper chamber 17b that protects the occupant's head (since the head is farther from the door than the chest, the required deployment time is slightly longer than that of the chest), is the lower chamber 17a after deployment. The suture thread 31 breaks and the gas also flows into the upper chamber 17b to be expanded.

【0028】(4) 次に、上記実施例の使用態様を説明す
る。
(4) Next, the mode of use of the above embodiment will be described.

【0029】所定の衝撃荷重がドアアウターパネル14
に作用したとき、衝撃検知手段(図示しない)からの衝
撃検知信号によってインフレータ20が作動してインフ
レータ20内部のガス発生器からガスが爆発的に発生す
る。この発生ガスは、インフレータ20のガス吹き出し
部19の周璧のガス吹き出し孔19aから吹き出して、
エアバッグ本体17内に流入する。同時的に、リッド2
3はエアバッグ本体17の膨出する力を受けて車内側に
回動してエアバッグ飛び出し口21が開く。
A predetermined impact load is applied to the door outer panel 14
When it acts on, the inflator 20 is actuated by an impact detection signal from an impact detection means (not shown), and gas is explosively generated from the gas generator inside the inflator 20. This generated gas is blown out from the gas blowing hole 19a on the circumferential wall of the gas blowing portion 19 of the inflator 20,
It flows into the airbag body 17. Simultaneously, lid 2
3 receives the swelling force of the airbag body 17 and rotates inside the vehicle to open the airbag outlet 21.

【0030】このとき、エアバッグの収納形態がロール
状に巻かれたものであるため、ガス流の運動作用エネル
ギーが、主として、ロール状態を展開する(巻き戻し)
方向に使用される。このため、即ち、エアバッグ本体1
7の展開方向(伸び方向)においてドアパネル13の内
面(車内側壁面)に沿うようになる。即ち、従来の如
く、エアバッグ本体の展開方向が車内側に向かうような
ことはない。
At this time, since the air bag is stored in a roll shape, the kinetic energy of the gas flow mainly develops the roll state (rewinding).
Used for direction. Therefore, that is, the airbag body 1
7 extends along the inner surface of the door panel 13 (wall surface on the inner side of the vehicle) in the expanding direction (extending direction). That is, unlike the conventional case, the deployment direction of the airbag body does not face the inside of the vehicle.

【0031】また、インフレータ20のガス吹き出し部
19からドアパネル13に沿う方向でガスが吹き出すた
め、インフレータ20のドアパネル13に作用する力が
小さい。さらに、ガス吹き出し部19の下側半分から吹
き出すガスはガス流堰板27により上方へ案内されるた
め、ガス吹き出し部19の上側ガス吹き出し孔19aか
ら吹き出すガスとともに、全体的にガス流れがドアパネ
ル13に沿ったものとなる。従って、上記ガス流れ運動
エネルギーは、より有効に、上方に作用する。このた
め、エアバッグ本体17の展開・膨出がより円滑に行わ
れる。
Further, since gas is blown out from the gas blowing portion 19 of the inflator 20 in the direction along the door panel 13, the force acting on the door panel 13 of the inflator 20 is small. Further, since the gas blown out from the lower half of the gas blow-out portion 19 is guided upward by the gas flow barrier plate 27, the gas blown out from the upper gas blow-out hole 19a of the gas blow-out portion 19 and the gas flow as a whole are closed. It will be in line with. Therefore, the gas flow kinetic energy acts upward more effectively. Therefore, the airbag body 17 can be more smoothly expanded and expanded.

【0032】[0032]

【発明の作用・効果】本発明の一つであるエアバッグ装
置は、上記の如く、エアバッグ本体のエアバッグ収納部
での収納形態が、ロール状に巻かれたものである構成に
より、ガス流れによる運動エネルギーが、主として、ロ
ール状態を展開する方向に使用される。このため、即
ち、エアバッグ本体の膨出初期の展開形態が、展開方向
(伸び方向)においてドア内面(車内側壁面)に沿うよ
うになる。
As described above, the airbag device according to the present invention has a configuration in which the storage configuration of the airbag storage portion of the airbag main body is such that it is rolled. Kinetic energy from the flow is mainly used in the direction of developing the roll state. Therefore, in other words, the deployment form of the airbag main body in the initial stage of inflation is along the inner surface of the door (the inner wall surface of the vehicle) in the deployment direction (extension direction).

【0033】本発明の他の一つであるエアバッグ装置
は、ステアリングホイール用の汎用インフレータが前記
ドアパネルに沿って取付けられ、該インフレータは、ガ
ス吹き出し部の略下側半分を隙間を有して覆うガス流堰
板が付設された構成にすることにより、専用のインフレ
ータを使用しなくてもよい。また、インフレータのガス
噴出時にインフレータが、ドアパネルに沿う方向でガス
が吹き出すため、ドアパネルに作用する力が小さく、ド
アパネルの補強構造の変更も小さいもので済む。また、
該インフレータは、ガス吹き出し部の略下側半分を隙間
を有して覆うガス流堰板が付設されていることにより、
ガス流れが全体的に上方へガイドされ、ガス流れの運動
エネルギーが、エアバッグ膨出に有効に使用され、エア
バッグの上方への展開・膨出がより円滑に行われる。
In the airbag apparatus according to another aspect of the present invention, a general-purpose inflator for a steering wheel is attached along the door panel, and the inflator has a gap in a substantially lower half of the gas blowing portion. With the configuration in which the covering gas flow dam plate is attached, it is not necessary to use a dedicated inflator. Further, when the inflator blows out gas, the inflator blows out gas in the direction along the door panel, so that the force acting on the door panel is small, and the reinforcement structure of the door panel need not be changed. Also,
The inflator is provided with a gas flow weir plate that covers approximately the lower half of the gas blowing portion with a gap,
The gas flow is guided upward as a whole, and the kinetic energy of the gas flow is effectively used for inflating the airbag, so that the airbag can be more smoothly expanded and inflated upward.

【0034】本発明のさらに他の一つであるエアバッグ
装置は、エアバッグ本体の両側端部が折り曲げられてい
るので、アバッグ本体の巻き幅が小さくなり、相対的に
エアバッグ収納部の車両前後方向の幅を小さくでき、ま
た、その折曲げが車外側に曲げられているので、エアバ
ッグ本体の展開時に、両側端縁(エッジ)が乗員に干渉
することがない。
In the airbag device according to yet another aspect of the present invention, since both side ends of the airbag main body are bent, the winding width of the airbag main body becomes smaller, and the airbag storage portion is relatively accommodated in the vehicle. Since the width in the front-rear direction can be reduced and the bend is bent to the outside of the vehicle, both side edges do not interfere with the occupant when the airbag body is deployed.

【0035】なお、バッグ展開時におけるバッグ形状の
仕様が、車両前後方向の幅:410mm、高さ:670m
m、バッグ内容量:34Lであり、バッグ膨出厚さ制御
用のストラップをバッグ内側に6箇所取付けた各バッグ
17を、収縮状態:蛇腹状、ガス流堰板なし、収縮
状態:ロール状(車内側面を外側巻き面とする)、ガス
流堰板なし、収縮状態:ロール状(車内側面を外側巻
き面とする)、ガス流堰板あり、の各条件で、ステアリ
ングホイール用のインフレータが装着されたテスト用平
板板金に取付けた。そして、インフレーション試験を行
い、エアバッグの展開方向を高速度ビデオカメラで撮影
して、バッグ展開方向を観察した。その観察結果は、各
バッグの展開方向角度が、ぞれぞれ50°、42
°、25°であり、本発明の実施例は、従来例に比し
て、ドア内面に沿うように展開することが裏付けられ
た。
The specification of the bag shape when the bag is unfolded is such that the width in the front-rear direction of the vehicle is 410 mm and the height is 670 m.
m, bag internal volume: 34 L, each bag 17 having 6 swelling thickness control straps attached to the inside of the bag, contracted state: bellows-like, no gas flow dam plate, contracted state: roll-like ( The inflator for the steering wheel is installed under each of the following conditions: the inner side surface of the vehicle is the outer winding surface), there is no gas flow weir plate, and the contracted state is roll (the inner surface of the vehicle is the outer winding surface) and there is the gas flow weir plate. It was attached to the tested flat plate metal plate. Then, an inflation test was performed, the deployment direction of the airbag was photographed with a high-speed video camera, and the deployment direction of the bag was observed. The observation result shows that the angle of each bag in the direction of deployment is 50 ° and 42 °, respectively.
It was confirmed that the embodiment of the present invention spreads along the inner surface of the door as compared with the conventional example.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例におけるエアバッグ装置の全
体平面図
FIG. 1 is an overall plan view of an airbag device according to an embodiment of the present invention.

【図2】図1の2−2線断面図FIG. 2 is a sectional view taken along line 2-2 of FIG.

【図3】本発明のエアバッグ装置におけるエアバッグ本
体収納時のドア体・乗員等との関係図
FIG. 3 is a relational diagram with a door body, an occupant, etc. when the airbag body is stored in the airbag apparatus of the present invention.

【図4】本発明のアバッグ装置の他の一例を示すエアバ
ッグ本体展開時の全体概略平面図
FIG. 4 is an overall schematic plan view showing another example of the airbag device of the present invention when the airbag body is deployed.

【図5】図4の5−5線後側省略矢視図FIG. 5 is a rear side omitted arrow view taken along line 5-5 of FIG.

【符号の説明】[Explanation of symbols]

11 車両ドア 13 ドアインナーパネル(ドアパネル) 15 エアバッグ収納部 17 エアバッグ本体 19a ガス吹き出し孔 19 ガス吹き出し部 20 インフレータ 21 エアバッグ飛び出し口 23 リッド 25 バックアッププレート 27 ガス流堰板 11 Vehicle Door 13 Door Inner Panel (Door Panel) 15 Airbag Storage 17 Airbag Main Body 19a Gas Blowout Hole 19 Gas Blowout 20 Inflator 21 Airbag Jump Out 23 Lid 25 Backup Plate 27 Gas Flow Dam Plate

───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀内 範之 愛知県西春日井郡春日町大字落合字長畑1 番地 豊田合成株式会社内 (72)発明者 伊藤 通康 愛知県西春日井郡春日町大字落合字長畑1 番地 豊田合成株式会社内 (72)発明者 広重 敦 愛知県豊田市トヨタ町1番地 トヨタ自動 車株式会社内 (72)発明者 深津 友之 愛知県豊田市トヨタ町1番地 トヨタ自動 車株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Noriyuki Horiuchi, No. 1 Nagahata, Ochiai, Kasuga-cho, Nishikasugai-gun, Aichi Prefecture, Toyoda Gosei Co., Ltd. Address inside Toyota Gosei Co., Ltd. (72) Inventor Atsushi Hiroshige 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor Tomoyuki Fukatsu 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 車両ドアのドアパネルの内側に形成され
るエアバッグ収納部と、前記エアバッグ収納部に収縮状
態とされて配されるエアバッグ本体と、該エアバッグ本
体の元部開口部でガス吹き出し部が囲繞されて接続され
るインフレータと、前記エアバッグ本体の膨出時のエア
バッグ飛び出し口を閉じるリッドとを備えたエアバッグ
装置において、 前記エアバッグ本体の前記エアバッグ収納部での収縮状
態が、ロール状に巻かれたものであることを特徴とする
エアバッグ装置。
1. An airbag storage portion formed inside a door panel of a vehicle door, an airbag main body arranged in a contracted state in the airbag storage portion, and an opening portion of a main portion of the airbag main body. In an airbag device including an inflator to which a gas blowout portion is surrounded and connected, and a lid which closes an airbag pop-out opening when the airbag body is inflated, in an airbag storage portion of the airbag body, An airbag device characterized in that the contracted state is a roll.
【請求項2】 請求項1において、周璧に多数のガス吹
き出し孔が形成されたガス吹き出し部を有する扁平筒状
のステアリングホイール用の汎用インフレータが前記ド
アパネルに沿って取付けられ、該インフレータには、ガ
ス吹き出し部の略下側半分を隙間を有して覆うガス流堰
板が付設され、該ガス流堰板及び前記ガス吹き出し部が
前記エアバッグ本体の元部開口部で囲繞されていること
を特徴とするエアバッグ装置。
2. The general-purpose inflator for a steering wheel, which has a flat tubular shape and has a gas blowing portion in which a large number of gas blowing holes are formed in a peripheral wall, is attached along the door panel according to claim 1, and the inflator is attached to the inflator. A gas flow weir plate that covers approximately the lower half of the gas blow-out portion with a gap is provided, and the gas flow weir plate and the gas blow-out portion are surrounded by the base opening of the airbag body. Air bag device.
【請求項3】 請求項1において、前記バッグ本体の巻
き方向が、バッグ本体の車内側面を外側巻き面とするこ
とを特徴とするエアバッグ装置。
3. The airbag device according to claim 1, wherein a winding direction of the bag body is such that an inner side surface of the bag body is an outer winding surface.
【請求項4】 請求項1において、前記エアバッグ本体
が、その展開側面形状が略四辺形で、その両側端部を車
外側に折り曲げ後、ロール状に巻かれたものであること
を特徴とするエアバッグ装置。
4. The airbag body according to claim 1, wherein the airbag body has a substantially quadrangular shape on a side surface thereof and is wound in a roll shape after bending both side ends thereof to the outside of the vehicle. Airbag device that does.
JP5308297A 1993-08-31 1993-12-08 Airbag device Expired - Fee Related JP3070369B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5308297A JP3070369B2 (en) 1993-08-31 1993-12-08 Airbag device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5-216270 1993-08-31
JP21627093 1993-08-31
JP5308297A JP3070369B2 (en) 1993-08-31 1993-12-08 Airbag device

Publications (2)

Publication Number Publication Date
JPH07117610A true JPH07117610A (en) 1995-05-09
JP3070369B2 JP3070369B2 (en) 2000-07-31

Family

ID=26521337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5308297A Expired - Fee Related JP3070369B2 (en) 1993-08-31 1993-12-08 Airbag device

Country Status (1)

Country Link
JP (1) JP3070369B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027084A1 (en) * 1996-01-23 1997-07-31 Petri Ag Device for protecting motor vehicle occupants
US6062594A (en) * 1997-02-27 2000-05-16 Toyoda Gosei Co., Ltd. Air bag for protecting passenger from side collision which has uniform inflation characteristics
JP2004189215A (en) * 2002-12-07 2004-07-08 Dr Ing H C F Porsche Ag Safety devices for car occupants
JP4838266B2 (en) * 2004-12-24 2011-12-14 オートリブ ディベロップメント アクティエボラーグ Airbag module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027084A1 (en) * 1996-01-23 1997-07-31 Petri Ag Device for protecting motor vehicle occupants
US6129375A (en) * 1996-01-23 2000-10-10 Petri Ag Device for protecting motor vehicle occupants
US6062594A (en) * 1997-02-27 2000-05-16 Toyoda Gosei Co., Ltd. Air bag for protecting passenger from side collision which has uniform inflation characteristics
JP2004189215A (en) * 2002-12-07 2004-07-08 Dr Ing H C F Porsche Ag Safety devices for car occupants
JP4838266B2 (en) * 2004-12-24 2011-12-14 オートリブ ディベロップメント アクティエボラーグ Airbag module

Also Published As

Publication number Publication date
JP3070369B2 (en) 2000-07-31

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