JPH06255438A - Air bag device and folding method of air bag - Google Patents
Air bag device and folding method of air bagInfo
- Publication number
- JPH06255438A JPH06255438A JP5038130A JP3813093A JPH06255438A JP H06255438 A JPH06255438 A JP H06255438A JP 5038130 A JP5038130 A JP 5038130A JP 3813093 A JP3813093 A JP 3813093A JP H06255438 A JPH06255438 A JP H06255438A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- door
- folding
- folded
- inflator
- 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
- B60R21/237—Inflatable members characterised by the way they are folded
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車のインストルメン
トパネルの助手席側に配置されるエアバッグ装置および
バッグの折畳み方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag device arranged on the passenger side of an instrument panel of an automobile and a method for folding a bag.
【０００２】[0002]
【従来の技術】自動車の中には、例えば実開平１−８１
１５４号公報に示されているように、衝突時における助
手席乗員の保護対策のため、助手席側のインストルメン
トパネル内部にエアバッグユニットを配設したものが知
られている。2. Description of the Related Art Some automobiles include, for example, the actual Kaihei 1-81.
As disclosed in Japanese Patent Publication No. 154, there is known one in which an airbag unit is provided inside the instrument panel on the passenger side in order to protect passengers in the case of a collision.
【０００３】これは、具体的にはインストルメントパネ
ルの助手席側の上面部に開口部を形成し、インストルメ
ントパネルの内側の車体側部材、例えば車幅方向に設け
たステアリングメンバにエアバッグユニットを上下方向
に回動自在に軸支し、該エアバッグユニットの取付位置
を調整可能として前記開口部に臨んで配置すると共に、
該エアバッグユニットにデイプロイメントドアを取付け
て、該デイプロイメントドアを前記開口部に整合して配
置してある。Specifically, an opening is formed in the upper surface of the instrument panel on the passenger side, and a vehicle body side member inside the instrument panel, for example, a steering member provided in the vehicle width direction is provided with an airbag unit. Is rotatably supported in the up-and-down direction, and the mounting position of the airbag unit is adjustable so as to face the opening, and
A deployment door is attached to the airbag unit, and the deployment door is arranged in alignment with the opening.
【０００４】[0004]
【発明が解決しようとする課題】エアバッグユニットを
ステアリングメンバに回動自在に軸支してあるため、デ
イプロイメントドアをインストルメントパネルの開口部
に止着するまで、エアバッグユニットの位置が定まらず
組付け作業性が悪化してしまう。Since the airbag unit is rotatably supported by the steering member, the position of the airbag unit is maintained until the deployment door is fixed to the opening of the instrument panel. As a result, the workability of assembling deteriorates.
【０００５】また、エアバッグユニットの回動，調整に
伴ってデイプロイメントドアも上下移動するため、イン
ストルメントパネルの開口部を上下方向に面積を拡大す
る必要があり、デイプロイメントドアと開口部上下縁と
の間のパーティング間隙が広がって見栄えが悪化してし
まう。Further, since the deployment door also moves up and down with the rotation and adjustment of the airbag unit, it is necessary to increase the vertical area of the opening of the instrument panel. The parting gap between the upper and lower edges of the part widens and the appearance deteriorates.
【０００６】そこで、本発明はエアバッグユニットの取
付位置調整を行わなくても、バッグを助手席乗員に向け
て適正方向にスムーズに膨張，展開させることができ、
従って、エアバッグユニットの組付け作業性を改善でき
ると共に、インストルメントパネルの開口部を必要以上
に大きくする必要がなく、該開口部周縁とデイプロイメ
ントドアとの間のパーティング間隙を小さくできて外観
を向上することもできるエアバッグ装置およびバッグの
折畳み方法を提供するものである。Therefore, according to the present invention, the bag can be smoothly inflated and deployed in the proper direction toward the passenger in the passenger seat without adjusting the mounting position of the airbag unit.
Therefore, the workability of assembling the airbag unit can be improved, the opening of the instrument panel need not be made larger than necessary, and the parting gap between the periphery of the opening and the deployment door can be reduced. (EN) Provided are an airbag device and a method for folding a bag, which can improve the appearance.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明にあって
は、インストルメントパネルの助手席側の上面部に形成
した開口部に臨んで、該インストルメントパネルの内側
の車体側部材に固定されたインフレータと、インフレー
タを囲繞してその周縁に止着されて折畳み収納されたバ
ッグと、インフレータおよびバッグを上方より覆って収
納するボックス状の樹脂カバーと、インストルメントパ
ネルの開口部を開閉自在に覆うデイプロイメントドアと
を有するエアバッグ装置において、樹脂カバーはその上
面部の略後半部分が易破断展開部として構成されている
と共に、上面部の略前半部分に易破断展開部の前縁から
斜め前方に傾斜して、バッグの展開方向を車室後方に規
制するガイド面が形成され、かつ、このガイド面の外側
から両側面に亘ってガイドプレートで覆われている一
方、バッグは易破断展開部の下方領域に位置して折畳ま
れた第１折畳み部と、ガイド面の下方領域に位置して折
畳まれた第２折畳み部とを備え、該第１折畳み部が第２
折畳み部よりも容積が大きく設定されている。請求項２
の発明にあっては、デイプロイメントドアが上下２方向
に開く第１ドアと第２ドアとで観音開き構造に形成さ
れ、第１ドアと第２ドアの何れか一方がインストルメン
トパネルと一体に成形されている。According to a first aspect of the invention, the instrument panel is fixed to a vehicle body-side member inside the instrument panel facing the opening formed in the upper surface of the instrument panel on the passenger side. The inflator, a bag that surrounds the inflator and is folded and stored around its periphery, a box-shaped resin cover that covers the inflator and the bag from above, and the opening of the instrument panel can be opened and closed. In the airbag device having a deployment door that covers the upper surface of the resin cover, the upper half of the upper surface of the resin cover is configured as the easy-breaking deployable portion, and the front edge of the easy-breaking deploying portion is provided at the substantially first half of the upper surface. From the outer side of the guide surface to the both side surfaces. While the bag is covered with the guide plate, the bag has a first folding part that is located in the lower region of the easy-breaking deployment part and a second folding part that is located in the lower region of the guide surface. And the first folding portion is the second
The volume is set larger than the folding part. Claim 2
In the invention of claim 1, the deployment door is formed in a double door structure including a first door and a second door that open in two vertical directions, and one of the first door and the second door is integrated with the instrument panel. It is molded.
【０００８】請求項３の発明にあっては、請求項１記載
のエアバッグ装置において、バッグは縫製形状をインフ
レータを中心にして第１折畳み部を第２折畳み部よりも
長大に形成し、第１，第２折畳み部を各側壁部分を内側
に折り込んで樹脂カバー内に収まる幅に畳み、第１，第
２折畳み部をそれぞれインフレータ上に蛇腹状に折畳む
ようにしている。According to a third aspect of the present invention, in the airbag device according to the first aspect, the bag has a sewing shape in which the first folding portion is formed to be longer than the second folding portion with the inflator as a center. The first and second folding parts are folded so that the respective side wall parts are folded inward so as to be accommodated in the resin cover, and the first and second folding parts are respectively folded in a bellows shape on the inflator.
【０００９】[0009]
【作用】請求項１によれば、インフレータが作動してガ
スが発生すると、バッグの第１折畳み部，第２折畳み部
はそれぞれインフレータに近い側から順次に折畳みがほ
ぐれて膨張し始め、第２折畳み部が膨張してガイドプレ
ートで補強されたガイド面に当接すると共に、第１折畳
み部が膨張して易破断展開部を破断して押し退けると共
に、デイプロイメントドアを押し退けて展開する。According to the first aspect of the present invention, when the inflator is actuated and gas is generated, the first and second folding portions of the bag start to inflate and inflate in order from the side closer to the inflator. The folding part expands to come into contact with the guide surface reinforced by the guide plate, and the first folding part expands to break and push away the easy-breaking deployable part, and also pushes the deployment door away and deploys it.
【００１０】この展開時には、第２折畳み部がガイド面
に当接することで、バッグ全体の展開性状にガイド面の
傾斜に沿った指向性が与えられることから、第１折畳み
部はガイド面あるいは易破断展開部に形成された開口周
縁等に引掛かりを生じることなく車室後方に向けて膨
張，展開する。At the time of this unfolding, the second folding portion is brought into contact with the guide surface to give directivity along the inclination of the guide surface to the deployment characteristic of the entire bag. It expands and deploys toward the rear of the passenger compartment without getting caught in the peripheral edge of the opening formed in the fracture deployment part.
【００１１】請求項２によれば、上下２方向に観音開き
するデイプロイメントドアの第１ドアと第２ドアの何れ
か一方がインストルメントパネルと一体に成形されてい
るため、該インストルメントパネルに形成する開口部の
実質面積を小さくできて、デイプロイメントドアの組付
け性，整合性を向上することができる。According to the second aspect of the present invention, since either one of the first door and the second door of the deployment door that opens in two directions vertically is formed integrally with the instrument panel. The substantial area of the opening to be formed can be reduced, and the assembling property and the matching property of the deployment door can be improved.
【００１２】請求項３によれば、第１折畳み部および第
２折畳み部を、何れも一旦、側壁部分を内側に折り込ん
でガイドプレート内に収まる幅に畳んで、そして、第
１，第２折畳み部をそれぞれインフレータ上に折畳むた
め、バッグ膨張時に第１折畳み部，第２折畳み部の各折
れ部分に引掛かりを生じることなく、インフレータに近
い側から順次に折畳みがほぐれるようになって、バッグ
の展開をスムーズに行わせることができる。According to the third aspect of the present invention, the first folding portion and the second folding portion are once folded so that the side wall portions are folded inward so as to fit within the guide plate, and the first and second folding portions are then folded. Since the respective parts are folded on the inflator, when the bag is inflated, the first folded part and the second folded part are not caught, and the folds can be unfolded sequentially from the side close to the inflator. Can be smoothly deployed.
【００１３】[0013]
【実施例】以下、本発明の一実施例を図面と共に詳述す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.
【００１４】図１，２において、１はインストルメント
パネル２の助手席側の内部に、該インストルメントパネ
ル２の上面部に形成した開口部２ａに臨んで配置したエ
アバッグユニットで、インフレータ３，バッグ４，これ
らインフレータ３とバッグ４とを収納するボックス状の
樹脂カバー５，該樹脂カバー５に装着されたガイドプレ
ート６，および開口部２を覆うデイプロイメントドア７
とから大略構成されている。In FIGS. 1 and 2, reference numeral 1 denotes an air bag unit which is arranged inside the instrument panel 2 on the passenger side so as to face an opening 2a formed in an upper surface of the instrument panel 2, and which is an inflator 3, A bag 4, a box-shaped resin cover 5 for accommodating the inflator 3 and the bag 4, a guide plate 6 mounted on the resin cover 5, and a deployment door 7 for covering the opening 2.
It is composed of and.
【００１５】インフレータ３，樹脂カバー５およびガイ
ドプレート６はベースプレート８に取付けてあって、該
ベースプレート８は樹脂カバー５，ガイドプレート６と
ビス１０により共締め固定したブラケット９と、インス
トルメントパネル２の内側の車体側部材、例えば車幅方
向に配設したステアリングメンバ１１に固設したブラケ
ット１２とをボルト・ナット１３締結して、該ステアリ
ングメンバ１１に固定してある。The inflator 3, the resin cover 5 and the guide plate 6 are attached to a base plate 8. The base plate 8 is fixed to the resin cover 5, the guide plate 6 and a screw 9 together with a bracket 9 and an instrument panel 2. An inner body member, for example, a bracket 12 fixed to a steering member 11 arranged in the vehicle width direction is fastened to the steering member 11 by fastening bolts and nuts 13.
【００１６】樹脂カバー５はその上面部の略後半部分が
薄肉成形等により易破断展開部５ａとして構成して、バ
ッグ４の膨張圧によって容易に破断，展開して開口を形
成し得るようにしてあり、かつ、上面部の略前半部分に
易破断展開部５ａの前縁から斜め前方に傾斜して、バッ
グ４の展開方向を車室後方に規制するガイド面５ｂを形
成してある。The resin cover 5 is configured such that the rear half of the upper surface thereof is formed as a fragile deployable portion 5a by thin molding or the like so that the bag 4 can be easily ruptured and deployed by the inflation pressure to form an opening. In addition, a guide surface 5b that restricts the deployment direction of the bag 4 to the rear of the vehicle compartment is formed in a substantially front half portion of the upper surface portion by inclining obliquely forward from the front edge of the easy-breaking deployment portion 5a.
【００１７】ガイドプレート６は樹脂カバー５のガイド
面５ｂから両側面に亘って覆って装着して、該樹脂カバ
ー５を補強している。The guide plate 6 covers the guide surface 5b of the resin cover 5 from both side surfaces and is attached so as to reinforce the resin cover 5.
【００１８】デイプロイメントドア７は、樹脂カバー５
の易破断展開部５ｂの略直上領域でインストルメントパ
ネル２の開口部２ａを覆い、ブラケット片７ａを開口部
２ａ上縁部にボルト１４固定して、該ブラケット片７ａ
の取付点を支点に前方へ回動展開する第１ドア７Ａと、
易破断展開部５ａの斜め後方領域でヒンジ部７ｂを境に
インストルメントパネル２に一体成形されて、このヒン
ジ部７ｂを支点に後方に回動展開する第２ドア７Ｂとで
上下２方向に開く観音開き構造としてある。The day deployment door 7 has a resin cover 5
The opening 2a of the instrument panel 2 is covered with a region substantially directly above the easy-breaking deployable portion 5b, and the bracket piece 7a is fixed to the upper edge portion of the opening 2a by the bolt 14 so that the bracket piece 7a.
A first door 7A that pivots forward with the mounting point of
The second door 7B is integrally formed with the instrument panel 2 at the diagonal rear region of the easy-breaking deployable portion 5a with the hinge portion 7b as a boundary, and opens in two up and down directions with the second door 7B that pivotally deploys rearward about this hinge portion 7b. It has a double door structure.
【００１９】一方、前記バッグ４はインフレータ３を囲
繞してその周縁に止着されていて、樹脂カバー５の易破
断展開部５ａの下方領域に位置して折畳まれた第１折畳
み部４Ａと、ガイド面５ｂの下方領域に位置して折畳ま
れた第２折畳み部４Ｂとを備えていて、第１折畳み部４
Ａは第２折畳み部４Ｂよりも容積を大きく設定してあ
る。On the other hand, the bag 4 surrounds the inflator 3 and is fixedly attached to the periphery thereof, and the first folding portion 4A is located in a region below the easily breakable developing portion 5a of the resin cover 5 and is folded. , The second folding part 4B which is located in the lower region of the guide surface 5b and is folded, and the first folding part 4 is provided.
The volume of A is set to be larger than that of the second folding portion 4B.
【００２０】より具体的には、バッグ４は縫製形状を図
３に示すようにインフレータ３を中心にして第１折畳み
部４Ａを第２折畳み部４Ｂよりも長大に、この実施例で
は平面舌状に長大に形成してあると共に、該第１折畳み
部４Ａの側壁部分（マチ部分Ｓ）を幅広に形成して、第
１折畳み部４Ａを第２折畳み部４Ｂよりも容積を大きく
してある。More specifically, as shown in FIG. 3, the bag 4 has a sewing shape in which the first folding portion 4A is longer than the second folding portion 4B with the inflator 3 as the center, and in this embodiment, a flat tongue shape. In addition to being formed long, the side wall portion (the gusset portion S) of the first folding portion 4A is formed wide so that the first folding portion 4A has a larger volume than the second folding portion 4B.
【００２１】図３〜７はバッグ４の折畳み工順を示すも
ので、先づバッグ４をその第１折畳み部４Ａ，第２折畳
み部４Ｂとも、マチ部分Ｓを内側に２つ折りに折り込む
（工順ａ）。3 to 7 show the folding process of the bag 4. First, the bag 4 is folded inward with the gusset portion S inward for both the first folding portion 4A and the second folding portion 4B. Order a).
【００２２】第１折畳み部４Ａは平面舌状に形成してあ
り、かつ、マチ部分Ｓの幅が広いので、そのままでは樹
脂カバー５内に収まる幅、例えばインフレータ３の幅相
当に揃わないため、インフレータ３の幅よりも両側方に
はみ出した上下の弧状部分Ａ1，Ａ2を、更に内側へマチ
部分Ｓの折り込み線と重なるように押し込んで、該第１
折畳み部４Ａを第２折畳み部４Ｂと揃えてインフレータ
３の幅相当に畳む（工順ｂ，ｃ）。Since the first folding portion 4A is formed in a flat tongue shape and the width of the gusset portion S is wide, it cannot fit within the resin cover 5 as it is, for example, the width of the inflator 3 is not uniform. The upper and lower arc-shaped portions A 1 and A 2 protruding to both sides than the width of the inflator 3 are pushed further inward so as to overlap the folding line of the gusset portion S, and
The folded portion 4A is aligned with the second folded portion 4B and folded to the width of the inflator 3 (procedures b and c).
【００２３】また、この第１折畳み部４Ａはこのままで
は、マチ部分Ｓおよび上下の弧状部分Ａ1，Ａ2の内側へ
の折り込み幅が広く、しかも、孤状の折り込み点Ｐが内
側に向いたままとなっているので、側方展開性をより向
上させるために、各孤状の折り込み点Ｐをインフレータ
３の幅相当の畳み幅Ｌａ内で外側へ引き出し、各孤状の
折り込み点Ｐを外側へ向けると共に内側への折り込み幅
をＬｂからＬｃに狭める（工順ｄ）。In this first folding portion 4A, the width of the gusset portion S and the upper and lower arc-shaped portions A 1 and A 2 folded inward is wide, and the arc-shaped folding point P is directed inward. Therefore, in order to further improve the lateral deployability, each arcuate folding point P is pulled outward within the folding width La corresponding to the width of the inflator 3, and each arcuate folding point P is moved outside. The width of the inward folding is narrowed from Lb to Lc (procedure d).
【００２４】そして、第１折畳み部４Ａおよび第２折畳
み部４Ｂをインフレータ３上に蛇腹状に折畳む（工順
ｅ，ｆ）。Then, the first folding portion 4A and the second folding portion 4B are folded in a bellows shape on the inflator 3 (procedures e, f).
【００２５】本実施例ではインフレータ３とバッグ４と
の間に円形シート状の展開ガイド１５を止着して、バッ
グ４の膨張展開時にこの展開ガイド１５が、バッグ４の
展開に先立って樹脂カバー５の易破断展開部５ａが破断
して形成された開口５ｃより展開してその周縁やデイプ
ロイメントドア７およびインストルメントパネル２の開
口部２ａ周縁を覆って、バッグ４がこれら周縁と直接接
触して損傷することがないようにしてある。In this embodiment, a circular sheet-shaped deployment guide 15 is fixed between the inflator 3 and the bag 4, and when the bag 4 is inflated and deployed, the deployment guide 15 covers the resin cover prior to the deployment of the bag 4. The easily rupturable deployable portion 5a of the bag 5 is deployed through the opening 5c formed by breaking and covers the periphery thereof and the periphery of the opening 2a of the deployment door 7 and the instrument panel 2 so that the bag 4 directly contacts these periphery. So that it will not be damaged.
【００２６】従って、前述のように第１折畳み部４Ａお
よび第２折畳み部４Ｂを折畳んだ後、これらを包むよう
にして展開ガイド１５を対向的に折り込む（工順ｇ，
ｈ，ｉ）。Therefore, after folding the first folding portion 4A and the second folding portion 4B as described above, the unfolding guide 15 is folded oppositely so as to wrap them (procedure g,
h, i).
【００２７】以上の実施例によれば、インフレータ３が
作動してガスが発生すると、バッグ４の第１折畳み部４
Ａ，第２折畳み部４Ｂはそれぞれインフレータ３に近い
側から順次に折畳みがほぐれて膨張し始める。According to the above embodiment, when the inflator 3 is activated and gas is generated, the first folding portion 4 of the bag 4 is
The A and the second folding portions 4B are unfolded in order from the side close to the inflator 3 and start to expand.
【００２８】第２折畳み部４Ｂが膨張により樹脂カバー
５前側部の傾斜したガイド面５ｂに当接し始める一方、
第１折畳み部４Ａが膨張して易破断展開部５ａに当接
し、該易破断展開部５ａを破断してそこに形成された開
口５ｃより展開すると共に、デイプロイメントドア７の
第１ドア７Ａ，第２ドア７Ｂに当接してこれらを上下２
方向に観音開きに回動展開させ、開口部２ａを開く。While the second folding portion 4B begins to contact the inclined guide surface 5b on the front side of the resin cover 5 due to expansion,
The first foldable portion 4A expands and comes into contact with the easily rupturable deployable portion 5a, ruptures the easily rupturable deployable portion 5a and deploys through the opening 5c formed therein, and also the first door 7A of the deployment door 7 , Abut on the second door 7B to move them up and down 2
In this direction, the opening 2a is opened by rotating and unfolding in a double-door manner.
【００２９】このバッグ４の膨張，展開時には、前述の
ように第２折畳み部４Ｂがガイドプレート６で補強され
た傾斜したガイド面５ｂに当接することで、バッグ４全
体の展開性状にガイド面５ｂの傾斜に沿った指向性が与
えられることから、第１折畳み部４Ａはガイド面５ｂあ
るいは開口５ｃ縁に引掛かりを全く生じることなく、イ
ンストルメントパネル２の開放された開口部２ａから車
室後方に向けて膨張，展開する。When the bag 4 is inflated and deployed, the second folding portion 4B comes into contact with the inclined guide surface 5b reinforced by the guide plate 6 as described above, so that the bag 4 as a whole is inflated. Since the directivity is given along the inclination of the vehicle, the first folding portion 4A does not catch the guide surface 5b or the edge of the opening 5c at all, and the opening 2a of the instrument panel 2 from the opening 2a rearward in the vehicle compartment. Inflate and expand toward.
【００３０】とりわけ、第１折畳み部４Ａおよび第２折
畳み部４Ｂを、何れも一旦、側壁部分を内側に折り込ん
で樹脂カバー５内に収まる幅に畳んで、そして、これら
第１，第２折畳み部４Ａ，４Ｂをそれぞれインフレータ
３上に蛇腹状に折畳んであるため、バッグ４の膨張時に
第１折畳み部４Ａ，第２折畳み部４Ｂの各折れ部分に引
掛かりを生じることなく、インフレータ３に近い側から
順次に折畳みがほぐれるようになって、バッグ４の展開
をスムーズに行わせることができる。In particular, both the first folding portion 4A and the second folding portion 4B are once folded so that the side wall portions are folded inward to fit within the resin cover 5, and then the first and second folding portions are formed. Since 4A and 4B are folded on the inflator 3 in a bellows shape, when the bag 4 is inflated, the folded portions of the first folding portion 4A and the second folding portion 4B are not caught and are close to the inflator 3. The folds are gradually unraveled from the side, so that the bag 4 can be unfolded smoothly.
【００３１】[0031]
【発明の効果】以上のように本発明によれば、バッグに
第１折畳み部と第２折畳み部とを形成して、第２折畳み
部を小さな容積として樹脂カバーの前側部の傾斜したガ
イド面の下方領域に折畳み、また、第１折畳み部は第２
折畳み部よりも容積を大きくして、樹脂カバーの易破断
展開部の下方領域に折畳んであるため、バッグの膨張，
展開時にバッグがガイド面に強圧接して内圧が上昇する
のを回避して、該バッグをガイド面により車室後方に展
開指向性を与えてスムーズに膨張，展開させることがで
きる。As described above, according to the present invention, the first folding portion and the second folding portion are formed in the bag, and the second folding portion has a small volume, and the inclined guide surface of the front side portion of the resin cover is formed. The first folding part is the second
Since the volume of the bag is larger than that of the folding part and it is folded in the lower region of the easy-breaking expansion part of the resin cover, the bag expands,
When the bag is deployed, it is possible to avoid the bag from coming into strong contact with the guide surface and increasing the internal pressure, and the bag can be inflated and deployed smoothly by giving the deployment direction to the rear of the vehicle compartment by the guide surface.
【００３２】従って、エアバッグユニットの取付位置調
整を行わなくても、バッグを助手席乗員に向けて適正方
向にスムーズに膨張，展開させることができるので、エ
アバッグユニットの組付け作業性を改善できると共に、
インストルメントパネルの開口面積をデイプロイメント
ドア面積よりも必要以上に大きくする必要がないため、
該開口部周縁とデイプロイメントドアとの間のパーティ
ング間隙を小さくすることができて、外観を一段と向上
することができる。Therefore, the bag can be smoothly inflated and expanded in the proper direction toward the passenger in the passenger seat without adjusting the mounting position of the airbag unit, thus improving the workability of assembling the airbag unit. While you can
Since it is not necessary to make the opening area of the instrument panel larger than the area of the deployment door,
The parting gap between the periphery of the opening and the deployment door can be reduced, and the appearance can be further improved.
【００３３】とりわけ、デイプロイメントドアを第１ド
アと第２ドアとで上下２方向に開く観音開き構造とし
て、何れか一方をインストルメントパネルと一体成形す
ることにより、インストルメントパネルに形成する開口
部の実質面積を小さくできて、デイプロイメントドアの
組付け性，整合性をより一層向上することができる。In particular, the deployment door has a double door structure in which the first door and the second door open vertically in two directions, and one of the openings is formed in the instrument panel by integrally molding it with the instrument panel. It is possible to reduce the actual area of the door and further improve the assembling property and the matching property of the deployment door.
【００３４】他方、バッグは第１折畳み部および第２折
畳み部を、何れも一旦、側壁部分を内側に折り込んで樹
脂カバー内に収まる幅に畳んだ後、それぞれを蛇腹状に
インフレータ上に折畳むため、バッグの膨張，展開時に
第１折畳み部，第２折畳み部の各折れ部分に引掛かりを
生じることなく、インフレータに近い側から順次に折畳
みがほぐれるようになって、バッグの展開をより一層ス
ムーズに行わせることができる。On the other hand, in the bag, both the first folding portion and the second folding portion are once folded so that the side wall portions are folded inward so that they can be accommodated in the resin cover, and then each is folded in a bellows shape on the inflator. Therefore, when the bag is inflated and unfolded, the folded portions of the first folding portion and the second folding portion are not caught, and the folding is gradually unraveled from the side closer to the inflator, so that the bag can be further deployed. It can be done smoothly.
【図１】本発明の一実施例を示す側面図。FIG. 1 is a side view showing an embodiment of the present invention.
【図２】同実施例のバッグの展開作動説明図。FIG. 2 is an explanatory view of the bag deployment operation of the embodiment.
【図３】バッグの折畳み工順を示す説明図。FIG. 3 is an explanatory view showing a folding process order of the bag.
【図４】図３のＡ−Ａ線に沿う断面図。4 is a sectional view taken along the line AA of FIG.
【図５】図３のＢ−Ｂ線に沿う断面図。5 is a cross-sectional view taken along the line BB of FIG.
【図６】図３のＣ−Ｃ線に沿う断面図。6 is a cross-sectional view taken along the line CC of FIG.
【図７】図３のＤ−Ｄ線に沿う断面図。7 is a cross-sectional view taken along the line DD of FIG.
１…エアバッグユニット ２…インストルメントパネル ２ａ…インストルメントパネルの開口部 ３…インフレータ ４…バッグ ４Ａ…第１折畳み部 ４Ｂ…第２折畳み部 ５…樹脂カバー ５ａ…易破断展開部 ５ｂ…ガイド面 ６…ガイドプレート ７…デイプロイメントドア ７Ａ…第１ドア ７Ｂ…第２ドア DESCRIPTION OF SYMBOLS 1 ... Airbag unit 2 ... Instrument panel 2a ... Instrument panel opening 3 ... Inflator 4 ... Bag 4A ... 1st folding part 4B ... 2nd folding part 5 ... Resin cover 5a ... Easy breaking deployment part 5b ... Guide surface 6 ... Guide plate 7 ... Day deployment door 7A ... First door 7B ... Second door
フロントページの続き (72)発明者 熊谷 雅義 滋賀県愛知郡愛知川町愛知川658番地 タ カタ株式会社内 (72)発明者 伊部 武彦 滋賀県愛知郡愛知川町愛知川658番地 タ カタ株式会社内 (72)発明者 久嶋 眞博 神奈川県横浜市神奈川区宝町２番地 日産 自動車株式会社内Front Page Continuation (72) Inventor Masayoshi Kumagai, 658 Aichigawa, Aichigawa-cho, Aichi-gun, Shiga, Takata Co., Ltd. (72) Inventor Takehiko Ibe, 658, Aichigawa, Aichi-gawa, Aichi-gun, Shiga ) Inventor Masahiro Hisajima 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.
Claims (3)
面部に形成した開口部に臨んで、該インストルメントパ
ネルの内側の車体側部材に固定されたインフレータと、
インフレータを囲繞してその周縁に止着されて折畳み収
納されたバッグと、インフレータおよびバッグを上方よ
り覆って収納するボックス状の樹脂カバーと、インスト
ルメントパネルの開口部を開閉自在に覆うデイプロイメ
ントドアとを有するエアバッグ装置において、樹脂カバ
ーはその上面部の略後半部分が易破断展開部として構成
されていると共に、上面部の略前半部分に易破断展開部
の前縁から斜め前方に傾斜して、バッグの展開方向を車
室後方に規制するガイド面が形成され、かつ、このガイ
ド面の外側から両側面に亘ってガイドプレートで覆われ
ている一方、バッグは易破断展開部の下方領域に位置し
て折畳まれた第１折畳み部と、ガイド面の下方領域に位
置して折畳まれた第２折畳み部とを備え、該第１折畳み
部が第２折畳み部よりも容積が大きく設定されているこ
とを特徴とするエアバッグ装置。1. An inflator fixed to a vehicle body-side member inside the instrument panel, facing an opening formed in the upper surface of the instrument panel on the passenger side.
A bag that surrounds the inflator and is folded and stored around its periphery, a box-shaped resin cover that covers the inflator and the bag from above, and a deployment that covers the opening of the instrument panel in an openable and closable manner. In an airbag device having a door, a resin cover is configured such that a substantially rear half portion of an upper surface portion thereof is configured as an easily rupturable deployable portion, and a substantially front half portion of the upper surface portion is inclined obliquely forward from a front edge of the easily rupturable deployable portion. Then, a guide surface for restricting the deployment direction of the bag to the rear of the vehicle compartment is formed, and the bag is covered with a guide plate from the outside of the guide surface to both side surfaces, while the bag is below the easy-breaking deployment portion. A first folding portion located in the region and folded, and a second folding portion located in the lower region of the guide surface, the first folding portion being the second folding portion. Airbag apparatus characterized by remote volume is larger.
く第１ドアと第２ドアとで観音開き構造に形成され、第
１ドアと第２ドアの何れか一方がインストルメントパネ
ルと一体に成形されていることを特徴とする請求項１記
載のエアバッグ装置。2. A deployment door is formed in a double door structure including a first door and a second door that open vertically in two directions, and one of the first door and the second door is integrally formed with an instrument panel. The airbag device according to claim 1, wherein:
て、バッグは縫製形状をインフレータを中心にして第１
折畳み部を第２折畳み部よりも長大に形成し、第１，第
２折畳み部を各側壁部分を内側に折り込んで樹脂カバー
内に収まる幅に畳み、第１，第２折畳み部をそれぞれイ
ンフレータ上に蛇腹状に折畳むことを特徴とするバッグ
の折畳み方法。3. The airbag device according to claim 1, wherein the bag has a sewing shape centered around the inflator.
The folds are formed to be longer than the second folds, and the first and second folds are folded so that the side wall portions are folded inward to fit within the resin cover, and the first and second folds are respectively placed on the inflator. A method of folding a bag, which is characterized in that it is folded into a bellows shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05038130A JP3078944B2 (en) | 1993-02-26 | 1993-02-26 | Airbag device and bag folding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05038130A JP3078944B2 (en) | 1993-02-26 | 1993-02-26 | Airbag device and bag folding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06255438A true JPH06255438A (en) | 1994-09-13 |
| JP3078944B2 JP3078944B2 (en) | 2000-08-21 |
Family
ID=12516866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05038130A Expired - Fee Related JP3078944B2 (en) | 1993-02-26 | 1993-02-26 | Airbag device and bag folding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3078944B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0792773A1 (en) * | 1996-02-27 | 1997-09-03 | TAKATA (EUROPE) VEHICLE SAFETY TECHNOLOGY GmbH | Airbag module housing assembly with a multiplicity of separable components |
| JPH1159312A (en) * | 1997-08-22 | 1999-03-02 | Honda Motor Co Ltd | Occupant crash protection device |
| EP0949123A1 (en) * | 1998-04-08 | 1999-10-13 | Takata Corporation | Airbag for front passenger and folding method thereof |
| EP2017140A1 (en) * | 2007-07-17 | 2009-01-21 | Delphi Technologies, Inc. | Air bag module with air bag sections folded inwards |
| US20120146315A1 (en) * | 2009-09-28 | 2012-06-14 | Ashimori Industry Co., Ltd. | Airbag device |
-
1993
- 1993-02-26 JP JP05038130A patent/JP3078944B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0792773A1 (en) * | 1996-02-27 | 1997-09-03 | TAKATA (EUROPE) VEHICLE SAFETY TECHNOLOGY GmbH | Airbag module housing assembly with a multiplicity of separable components |
| JPH1159312A (en) * | 1997-08-22 | 1999-03-02 | Honda Motor Co Ltd | Occupant crash protection device |
| EP0949123A1 (en) * | 1998-04-08 | 1999-10-13 | Takata Corporation | Airbag for front passenger and folding method thereof |
| US6186544B1 (en) | 1998-04-08 | 2001-02-13 | Takata Corporation | Air bag for passenger and folding method thereof |
| EP2017140A1 (en) * | 2007-07-17 | 2009-01-21 | Delphi Technologies, Inc. | Air bag module with air bag sections folded inwards |
| US20120146315A1 (en) * | 2009-09-28 | 2012-06-14 | Ashimori Industry Co., Ltd. | Airbag device |
| CN102548806A (en) * | 2009-09-28 | 2012-07-04 | 芦森工业株式会社 | Airbag device |
| US8613469B2 (en) * | 2009-09-28 | 2013-12-24 | Ashimori Industry Co., Ltd. | Airbag device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3078944B2 (en) | 2000-08-21 |
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