JP2002193066A - Vehicular air bag device - Google Patents
Vehicular air bag deviceInfo
- Publication number
- JP2002193066A JP2002193066A JP2000399151A JP2000399151A JP2002193066A JP 2002193066 A JP2002193066 A JP 2002193066A JP 2000399151 A JP2000399151 A JP 2000399151A JP 2000399151 A JP2000399151 A JP 2000399151A JP 2002193066 A JP2002193066 A JP 2002193066A
- Authority
- JP
- Japan
- Prior art keywords
- mounting piece
- cover
- vehicle
- fragile portion
- airbag device
- 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
Landscapes
- Air Bags (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は車両用エアバッグ装
置、とりわけ、車両の衝突時にルーフサイドレールの車
室側の側部よりエアバッグ本体を下向きにカーテン状に
膨張展開させるようにしたエアバッグ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag device for a vehicle, and more particularly, to an airbag in which the airbag body is inflated and deployed downward from the side of the roof side rail on the passenger compartment side in the event of a vehicle collision. Related to the device.
【０００２】[0002]
【従来の技術】自動車の中には、例えば特開２０００−
１５９０４８号公報に示されているようにルーフサイド
レールの車室側の側部に前後方向に沿ってエアバッグ装
置を装備し、車両の側面衝突時等にエアバッグ本体を下
向きに膨張展開させて、乗員の頭部等が車室側壁と直接
接触するのを回避し、かつ、衝撃エネルギーを吸収する
ようにしたものが知られている。2. Description of the Related Art Some automobiles include, for example, Japanese Patent Application Laid-Open No. 2000-2000.
As shown in JP-A No. 159048, an airbag device is provided along the front-rear direction on the side of the roof side rail on the passenger compartment side, and the airbag body is inflated and deployed downward in the event of a side collision of the vehicle. In addition, there is known a vehicle in which the head of an occupant or the like is prevented from coming into direct contact with the side wall of the passenger compartment and the impact energy is absorbed.
【０００３】前述のエアバッグ本体はフールサイドレー
ルインナの車室側の側面に前後方向に沿って配設した金
属製のカバーの内側に折り畳んで収納してあり、このカ
バーはその上端部に前後方向に複数個の取付片を備えて
該取付片を介して前記フールサイドレールインナに締結
固定してあって、車両の衝突時にはインフレータで発生
したガスにより前記エアバッグ本体を膨張させ、その膨
張圧で前記取付片を付け根付近から折り曲げてカバーの
下端部を跳ね上げることによって、前述のようにエアバ
ッグ本体を下向きに膨張展開させるようにしてある。The aforementioned airbag body is folded and housed inside a metal cover arranged along the front-rear direction on the side of the full side rail inner on the passenger compartment side. A plurality of mounting pieces are provided in the direction, and are fastened and fixed to the full side rail inner through the mounting pieces, and when the vehicle collides, the airbag body is inflated by gas generated by the inflator, and the inflation pressure is increased. The airbag body is inflated and deployed downward as described above by bending the mounting piece from near the base and flipping up the lower end of the cover.
【０００４】[0004]
【発明が解決しようとする課題】前述のカバーはエアバ
ッグ装置が作動しない程度の軽衝突時等に乗員が接触し
た際に、その衝接荷重で潰れ変形して衝撃エネルギーを
吸収し得るようにある程度の強度剛性を備えており、そ
して、前記取付片はこのカバーの上端部に一体に延設し
てある関係上、エアバッグ本体の膨張圧、即ち、インフ
レータの発生ガスエネルギーにより、取付片を折り曲げ
てカバー下端部を速やかに跳ね上げ作動させるためには
ある程度大型のインフレータが必要となって、インフレ
ータの小型化が妨げられてしまう。When the occupant comes into contact during a light collision or the like in which the airbag device does not operate, the above-mentioned cover is crushed and deformed by the contact load to absorb the impact energy. It has a certain degree of strength and rigidity, and since the mounting piece is integrally extended at the upper end of the cover, the mounting piece is inflated by the inflation pressure of the airbag body, that is, the generated gas energy of the inflator. In order to quickly bend the cover lower end portion by bending it, a somewhat large inflator is required, which hinders downsizing of the inflator.
【０００５】そこで、本発明はカバーの衝撃吸収機能を
些かも損なうことなくエアバッグ本体の膨張に伴う取付
片の折れ曲がりによる該カバーの跳ね上げ作動をスムー
ズに行えて、インフレータの小型化を実現することがで
きる車両用エアバッグ装置を提供するものである。Therefore, the present invention realizes a smooth operation of flipping up the cover due to the bending of the mounting piece due to the inflation of the airbag body without slightly impairing the shock absorbing function of the cover, thereby realizing downsizing of the inflator. It is intended to provide an airbag device for a vehicle that can perform the above.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明にあって
は、上端部に取付片を備え、ルーフサイドレールインナ
の車室側の側面に前後方向に沿って配置されて、前記取
付片を介してルーフサイドレールインナに固定されたカ
バーと、該カバーの内側に折り畳んで収納されたエアバ
ッグ本体と、を備え、車両の衝突時に該エアバッグ本体
を膨張させて、その膨張圧により前記カバーの下端部を
跳ね上げて該エアバッグ本体を下向きに展開させるよう
にした車両用エアバッグ装置において、前記取付片にカ
バー下端部の跳ね上げ挙動を促進する脆弱部を設けたこ
とを特徴としている。According to the first aspect of the present invention, a mounting piece is provided on an upper end portion, and the mounting piece is disposed along a front-rear direction on a side surface of the inner side of the roof side rail inner side. A cover fixed to the roof side rail inner via an airbag body folded inside the cover, and the airbag body is inflated at the time of a vehicle collision, and the inflation pressure is applied by the inflation pressure. An airbag device for a vehicle in which a lower end portion of a cover is flipped up to expand the airbag body downward, wherein a fragile portion is provided on the mounting piece to promote a flipping-up behavior of a lower end portion of the cover. I have.
【０００７】請求項２の発明にあっては、請求項１に記
載の脆弱部がスリットであることを特徴としている。According to a second aspect of the present invention, the fragile portion according to the first aspect is a slit.
【０００８】請求項３の発明にあっては、請求項１に記
載の脆弱部がビード部であることを特徴としている。According to a third aspect of the present invention, the fragile portion according to the first aspect is a bead portion.
【０００９】請求項４の発明にあっては、請求項１に記
載の脆弱部が薄肉部であることを特徴としている。According to a fourth aspect of the present invention, the fragile portion according to the first aspect is a thin portion.
【００１０】請求項５の発明にあっては、請求項１〜４
に記載の車両用エアバッグ装置であって、前記取付片に
は固定用締結部材の挿通孔が設けられ、脆弱部を該挿通
孔よりも下方位置に設けたことを特徴としている。In the invention of claim 5, claims 1 to 4 are provided.
The vehicle airbag device according to any one of claims 1 to 3, wherein the mounting piece is provided with an insertion hole for a fixing fastening member, and the fragile portion is provided below the insertion hole.
【００１１】請求項６の発明にあっては、請求項１〜５
に記載の車両用エアバッグ装置であって、前記取付片は
ルーフサイドレールインナの側面に対して略垂直に形成
したカバー上壁の端部から上向きに曲折成形してあり、
脆弱部をこれら取付片と上壁との曲折部に設けたことを
特徴としている。According to the invention of claim 6, claims 1 to 5 are provided.
The vehicle airbag device according to the above, wherein the mounting piece is bent upward from the end of the cover upper wall formed substantially perpendicular to the side surface of the roof side rail inner,
The fragile portion is provided at a bent portion between the mounting piece and the upper wall.
【００１２】請求項７の発明にあっては、請求項１〜６
に記載の車両用エアバッグ装置であって、前記脆弱部を
取付片の前後方向長さの中間部分に前後方向に形成し
て、該脆弱部の前後方向形成止端部と取付片の前後端縁
との間に所要幅で該取付片の一般部を確保したことを特
徴としている。In the invention of claim 7, claims 1 to 6 are provided.
The vehicle airbag device according to claim 1, wherein the fragile portion is formed in a front-rear direction at an intermediate portion of a length of the mounting piece in the front-rear direction, and a front-rear direction forming toe of the fragile portion and a front-rear end of the mounting piece. A general portion of the mounting piece is secured with a required width between the edge and the edge.
【００１３】[0013]
【発明の効果】請求項１に記載の発明によれば、カバー
の取付片には該カバーの下端部の跳ね上げ挙動を促進す
る脆弱部を設けてあるため、エアバッグ本体の膨張圧が
小さくても前記脆弱部を起点として折れ曲がってカバー
下端部をスムーズに跳ね上げ作動させることができる。According to the first aspect of the present invention, since the mounting piece of the cover is provided with a fragile portion for promoting the flip-up behavior of the lower end of the cover, the inflation pressure of the airbag body is small. However, the cover can be bent starting from the fragile portion and the lower end of the cover can be smoothly flipped up.
【００１４】この結果、エアバッグ本体を速やかに下向
きに膨張展開させることができることは勿論、インフレ
ータとしては発生ガスエネルギーが比較的小さな小型イ
ンフレータの使用が可能となり、該インフレータのレイ
アウトを容易にすることができると共に、インフレータ
の小型化により重量的におよびコスト的に有利に得るこ
とができる。As a result, not only can the airbag body be quickly inflated and deployed downward, but also a small inflator with relatively small generated gas energy can be used as the inflator, and the layout of the inflator can be simplified. And the size and size of the inflator can be advantageously obtained in terms of weight and cost.
【００１５】また、前述のように取付片に脆弱部を設け
るだけでカバー主体には強度剛性的な影響を及ばさない
ため、軽衝突時等におけるカバーの衝撃エネルギー吸収
性能を些かも損なうことはない。Further, as described above, since only the fragile portion is provided on the mounting piece, the strength of the cover is not affected by the strength and rigidity, so that the impact energy absorbing performance of the cover in a light collision or the like is slightly impaired. Absent.
【００１６】請求項２，３，４に記載の発明によれば、
何れも請求項１の発明の効果に加えて、脆弱部をプレス
成形等によってカバーの成形と同時に容易に形成するこ
とができる。According to the second, third, and fourth aspects of the present invention,
In any case, in addition to the effect of the first aspect, the fragile portion can be easily formed by press molding or the like simultaneously with the molding of the cover.
【００１７】請求項５に記載の発明によれば、請求項１
〜４の発明の効果に加えて、取付片の固定点となる固定
用締結部材の挿通孔よりも下方位置に脆弱部を設けてあ
るため、該脆弱部に確実に応力を集中させてカバー下端
部の跳ね上げ挙動をよりスムーズに行わせることができ
る。According to the invention described in claim 5, according to claim 1,
In addition to the effects of the inventions of (1) to (4), since the fragile portion is provided below the insertion hole of the fixing fastening member which is the fixing point of the mounting piece, stress is reliably concentrated on the fragile portion and the lower end of the cover is formed. The jumping behavior of the part can be performed more smoothly.
【００１８】請求項６に記載の発明によれば、請求項１
〜５の発明の効果に加えて、カバーの上壁とその端部か
ら曲折成形した取付片との曲折部の応力が集中し易い部
分に脆弱部を設けてあるため、カバー下端部の跳ね上げ
挙動を更にスムーズに行わせることができる。According to the invention of claim 6, according to claim 1,
In addition to the effects of the inventions of (1) to (5), since the fragile portion is provided in the portion where the stress is easily concentrated at the bent portion between the upper wall of the cover and the mounting piece bent from the end, the lower end of the cover is flipped up. Behavior can be performed more smoothly.
【００１９】請求項７に記載の発明によれば、請求項１
〜６の発明の効果に加えて、取付片の前後方向長さの中
間部に前後方向に形成した脆弱部の前後方向止端部と、
取付片の前後端縁との間に所要幅で該取付片の一般部を
確保してあるため、取付片のねじれ剛性を確保できてカ
バー下端部を長さ方向でねじれを生じることなく整然と
跳ね上げ作動させることができ、エアバッグ本体をその
前後端に亘って適正に下向きに膨張展開させることがで
きる。According to the invention of claim 7, according to claim 1,
In addition to the effects of the inventions of (1) to (6), a front-rear direction toe of a fragile portion formed in the front-rear direction at an intermediate portion of the length of the mounting piece in the front-rear direction,
Since the general portion of the mounting piece is secured with a required width between the front and rear edges of the mounting piece, the torsional rigidity of the mounting piece can be secured, and the lower end of the cover can be bounced off without any twist in the longitudinal direction. The airbag body can be raised, and the airbag body can be appropriately inflated and deployed downward over the front and rear ends thereof.
【００２０】[0020]
【発明の実施の形態】以下、本発明の実施形態を図面と
共に詳述する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００２１】図１〜３において、１はフロントピラー、
２はセンターピラー、３はリヤピラーを示し、これらフ
ロントピラー１の上部からセンターピラー２，リヤピラ
ー３の上部に亘って前後方向にルーフサイドレール４を
連設配置してある。1 to 3, reference numeral 1 denotes a front pillar,
Reference numeral 2 denotes a center pillar, and reference numeral 3 denotes a rear pillar. A roof side rail 4 is arranged continuously in the front-rear direction from the upper part of the front pillar 1 to the upper part of the center pillar 2 and the rear pillar 3.
【００２２】ルーフサイドレール４はルーフサイドレー
ルアウタ５とルーフサイドレールインナ６とで閉断面に
構成され、その上端部にフールパネル７の端部を接合し
て該接合部分にルーフドリップ８を構成している。The roof side rail 4 has a closed cross section composed of a roof side rail outer 5 and a roof side rail inner 6, and an end of a full panel 7 is joined to an upper end thereof to form a roof drip 8 at the joined portion. are doing.
【００２３】そして、前記ルーフサイドレールインナ６
の車室側の側面にエアバッグ装置１０を配設してある。The roof side rail inner 6
The airbag device 10 is disposed on the side of the vehicle compartment.
【００２４】このエアバッグ装置１０は、ルーフサイド
レールインナ６の車室側の側面に前後方向に沿って配置
した金属製のカバー１１と、該カバー１１の内側にその
前後長に亘って折り畳んで収納したエアバッグ本体１２
と、例えばリヤピラー３にブラケット１４を介して取付
けられ、図外の衝突センサの検知作用によって発火作動
してガスを発生し、該発生ガスにより前記エアバッグ本
体１２を膨張展開させるインフレータ１３とを備えてい
る。The airbag device 10 has a metal cover 11 disposed along the front-rear direction on the side of the roof side rail inner 6 on the vehicle interior side, and is folded inside the cover 11 over its front-rear length. Airbag body 12 stored
And an inflator 13 attached to, for example, the rear pillar 3 via a bracket 14 and ignited by a detection action of a collision sensor (not shown) to generate gas and inflate and deploy the airbag body 12 with the generated gas. ing.
【００２５】また、このエアバッグ装置１０はルーフト
リム３１の端部と、ルーフサイドレール４の下端部に装
着したドアウェザーストリップ３２とに跨って配設した
ガーニッシュ３３によって隠蔽されている。Further, the airbag device 10 is concealed by a garnish 33 disposed over an end portion of the roof trim 31 and a door weather strip 32 attached to a lower end portion of the roof side rail 4.
【００２６】カバー１１は断面略コ字形に形成してあ
り、ルーフサイドレールインナ６の側面に対して略垂直
に形成した上壁１５には、その端部から上向きに複数個
の取付片１６を曲折成形してある。The cover 11 is formed to have a substantially U-shaped cross section. A plurality of mounting pieces 16 are provided on the upper wall 15 formed substantially perpendicular to the side surface of the roof side rail inner 6 from the end thereof. It is bent.
【００２７】各取付片１６には挿通孔１７を形成して、
該挿通孔１７を通して締結部材によりルーフサイドレー
ルインナ６に締結固定し、カバー１１の下端部の端末を
ルーフサイドレールインナ６の側面に近接配置してあ
る。An insertion hole 17 is formed in each mounting piece 16,
The end of the lower end portion of the cover 11 is arranged close to the side surface of the roof side rail inner 6 by being fastened and fixed to the roof side rail inner 6 by a fastening member through the insertion hole 17.
【００２８】本実施形態では前記取付孔１６を、ルーフ
サイドレールインナ６の内側面に配置したウエルドナッ
ト１８とボルト１９とによって締結固定しているが、こ
の他、カシメピンによって締結固定することも可能であ
る。In the present embodiment, the mounting hole 16 is fastened and fixed by the weld nut 18 and the bolt 19 arranged on the inner side surface of the roof side rail inner 6, but may be fastened and fixed by a caulking pin. It is.
【００２９】このカバー１１はエアバッグ装置１０が作
動しない程度の軽衝突等の際には、乗員頭部が該カバー
１１に衝接すると潰れ変形して衝撃エネルギーを吸収す
るエネルギー吸収パッドとして機能し、かつ、エアバッ
グ本体１２が膨張するとその膨張圧で前記取付片１６の
付け根付近を起点として折れ曲がって下端部が跳ね上が
り可能なように、強度剛性が適切に設定される。The cover 11 functions as an energy absorbing pad that absorbs impact energy when the head of the occupant comes into contact with the cover 11 in a light collision or the like in which the airbag device 10 does not operate. When the airbag body 12 is inflated, the strength and rigidity thereof are appropriately set so that the airbag body 12 can be bent from the vicinity of the base of the mounting piece 16 as a starting point and the lower end can jump up by the inflation pressure.
【００３０】エアバッグ本体１２はその上端部をルーフ
サイドレールインナ６に前記取付片１６と共に締結固定
してあり、インフレータ１３で発生したガスにより膨張
するとその膨張圧でカバー１１の下端部を跳ね上げて、
図３に鎖線で示すように下向きにカーテン状に展開する
ようになっている。The upper end of the airbag body 12 is fixedly fastened to the roof side rail inner 6 together with the mounting piece 16. When the airbag body 12 is inflated by the gas generated by the inflator 13, the inflated pressure causes the lower end of the cover 11 to jump up. hand,
As shown by a chain line in FIG. 3, it is developed downward in a curtain shape.
【００３１】そして、前記各取付片１６にはエアバッグ
本体１２の膨張によるカバー１１の下端部の跳ね上げ挙
動を促進する脆弱部２０を設けてある。Each of the mounting pieces 16 is provided with a fragile portion 20 for promoting the flip-up behavior of the lower end of the cover 11 due to the inflation of the airbag body 12.
【００３２】本実施形態ではこの脆弱部２０として、ス
リット２０Ａを取付片１６の挿通孔１７よりも下方位
置、より好ましくは取付片１６とカバー１１の上壁１５
との曲折部にその稜線に沿って前後方向に設けて応力集
中し易いようにしてある。In the present embodiment, the slit 20A is formed at a position below the insertion hole 17 of the mounting piece 16 as the fragile portion 20, more preferably, the mounting piece 16 and the upper wall 15 of the cover 11.
This is provided in the bent portion in the front-rear direction along the ridge line so that stress concentration is easy.
【００３３】スリット２０Ａは取付片１６の前後方向長
さの中間部分に前後方向に形成して、該スリット２０Ａ
の前後方向形成止端部と取付片１６の前後端縁との間
に、所要幅Ｗで該取付片１６の一般部を確保してある。The slit 20A is formed in the front and rear direction at an intermediate portion of the length of the mounting piece 16 in the front and rear direction.
A general portion of the mounting piece 16 is secured with a required width W between the front-rear forming toe and the front and rear end edges of the mounting piece 16.
【００３４】脆弱部２０として本実施形態ではスリット
２０Ａを設けた場合を示しているが、これに替えてビー
ド部又は薄肉部を図２に示すスリット２０Ａの設定位置
に設けてもよい。In the present embodiment, the slit 20A is provided as the fragile portion 20, but a bead portion or a thin portion may be provided at the set position of the slit 20A shown in FIG. 2 instead.
【００３５】以上の実施形態の構造によれば、カバー１
１の取付片１６には該カバー１１の下端部の跳ね上げ挙
動を促進する脆弱部２０を設けてあるため、エアバッグ
本体１２の膨張圧が小さくても前記脆弱部２０を起点と
して折れ曲がってカバー下端部をスムーズに跳ね上げ作
動させることができる。According to the structure of the above embodiment, the cover 1
Since the attachment piece 16 is provided with a fragile portion 20 for promoting the flip-up behavior of the lower end portion of the cover 11, even if the inflation pressure of the airbag body 12 is small, the airbag body 12 is bent from the fragile portion 20 as a starting point to be bent. The lower end can be smoothly flipped up.
【００３６】この結果、エアバッグ本体１２を速やかに
下向きに膨張展開させることができることは勿論、イン
フレータ１３としては発生ガスエネルギーが比較的小さ
な小型インフレータの使用が可能となり、該インフレー
タ１３のレイアウトを容易にすることができると共に、
インフレータ１３の小型化により重量的におよびコスト
的に有利に得ることができる。As a result, not only can the airbag body 12 be quickly inflated and deployed downward, but also a small inflator with relatively small generated gas energy can be used as the inflator 13, and the layout of the inflator 13 can be simplified. Along with
By reducing the size of the inflator 13, it is possible to obtain an advantage in terms of weight and cost.
【００３７】また、前述のように取付片１６に脆弱部２
０を設けるだけでカバー主体（カバー１１）には強度剛
性的な影響を及ぼさないため、軽衝突時等におけるカバ
ー１１の衝撃エネルギー吸収性能を些かも損なうことは
ない。Further, as described above, the fragile portion 2
Only providing 0 does not affect the strength of the cover main body (the cover 11) in terms of strength and rigidity, so that the impact energy absorbing performance of the cover 11 at the time of a light collision or the like is not slightly impaired.
【００３８】本実施形態では前記脆弱部２０として、ス
リット２０Ａやビード部あるいは薄肉部を設けるように
しているため、該脆弱部２０をプレス成形等によってカ
バー１１の成形と同時に容易に形成することができる。In this embodiment, the slit 20A, the bead portion, or the thin portion is provided as the fragile portion 20, so that the fragile portion 20 can be easily formed simultaneously with the molding of the cover 11 by press molding or the like. it can.
【００３９】また、この脆弱部２０は取付片１６の固定
点となる固定用締結部材の挿通孔１７よりも下方位置に
設けて応力が集中し易いようにしてあり、特に、本実施
形態では応力が集中し易い取付片１６とカバー１１の上
壁１５との曲折部に設けてあるため、カバー１１の下端
部の跳ね上げ挙動をより一層スムーズに行わせることが
できる。The fragile portion 20 is provided below the insertion hole 17 of the fixing fastening member, which is a fixing point of the mounting piece 16, so that stress is easily concentrated. Is provided at a bent portion between the mounting piece 16 and the upper wall 15 of the cover 11, where the lower end portion of the cover 11 can be more smoothly jumped up.
【００４０】しかも、取付片１６の前後方向長さの中間
部に前後方向に形成した脆弱部２０（スリット２０Ａ）
の前後方向形成止端部と、取付片１６の前後端縁との間
に所要幅Ｗで該取付片１６の脆弱化していない所謂一般
部を確保してあるため、取付片１６のねじれ剛性を確保
できてカバー１１の下端部を長さ方向でねじれを生じる
ことなく整然と跳ね上げ作動させることができ、エアバ
ッグ本体１２をその前後端に亘って適正に下向きに膨張
展開させることができる。Moreover, the fragile portion 20 (slit 20A) formed in the front-rear direction at the middle of the length of the mounting piece 16 in the front-rear direction.
Since the so-called general portion of the mounting piece 16 that is not weakened with a required width W is secured between the front and rear forming toes of the mounting piece 16 and the front and rear end edges of the mounting piece 16, the torsional rigidity of the mounting piece 16 is reduced. As a result, the lower end of the cover 11 can be flipped up without any twist in the longitudinal direction, and the airbag body 12 can be properly inflated and deployed downward across the front and rear ends.
【００４１】図４は本発明の第２実施形態を示すもの
で、本実施形態にあってはルーフサイドレールインナ６
の車室側の側面上部に略コ字形断面の金属製のエネルギ
ー吸収パッド２１を前後方向に沿って接合配置してあっ
て、このエネルギー吸収パッド２１の下側に前記第１実
施形態と同様の構成部品からなるエアバッグ装置１０を
併設してある。FIG. 4 shows a second embodiment of the present invention. In this embodiment, the roof side rail inner 6 is used.
A metal energy absorbing pad 21 having a substantially U-shaped cross section is joined and arranged along the front-rear direction on the upper part of the side surface on the vehicle cabin side, and the same energy absorbing pad 21 as the first embodiment is provided below the energy absorbing pad 21. An airbag device 10 made up of components is also provided.
【００４２】このエアバッグ装置１０のカバー１１は略
Ｌ字形断面に形成して、その上端部に複数個の取付片１
６を該カバー１１の延長上に直状に延設してあり、これ
ら取付片１６をエネルギー吸収パッド２１の側面に重合
して、ウエルドナット１８とボルト１９とによって締結
固定し、カバー下端部をルーフサイドレールインナ６に
近接配置してある。The cover 11 of the airbag device 10 is formed in a substantially L-shaped cross section, and a plurality of mounting pieces 1
6 are extended linearly on the extension of the cover 11, these mounting pieces 16 are overlapped on the side surface of the energy absorbing pad 21, fastened and fixed by a weld nut 18 and a bolt 19, and the lower end of the cover is fixed. It is arranged close to the roof side rail inner 6.
【００４３】また、エアバッグ本体１２はその上端部を
前記取付片１６と共にエネルギー吸収パッド２１に締結
固定して、カバー１１の内側に折り畳んで収納してあ
る。The upper end of the airbag body 12 is fixedly fastened to the energy absorbing pad 21 together with the mounting piece 16, and is folded and stored inside the cover 11.
【００４４】即ち、この実施形態の場合もエアバッグ装
置１０の作動時には、前記第１実施形態と同様にインフ
レータ１３（図１参照）の発生ガスによりエアバッグ本
体１２が膨張すると、この膨張圧で取付片１６の付け根
付近を起点に折り曲げてカバー下端部を跳ね上げ、エア
バッグ本体１２を下向きに膨張展開させる。That is, also in this embodiment, when the airbag body 12 is inflated by the gas generated from the inflator 13 (see FIG. 1) during the operation of the airbag apparatus 10 as in the first embodiment, the inflation pressure is applied. The airbag body 12 is bent downward from the base of the attachment piece 16 and flipped up at the lower end of the cover to expand and deploy the airbag body 12 downward.
【００４５】また、エアバッグ装置１０が作動しない程
度の軽衝突時に、乗員頭部がエネルギー吸収パッド２１
及びカバー１１に衝接した場合、これらが潰れ変形して
衝撃エネルギーを吸収する。In the event of a light collision in which the airbag device 10 does not operate, the occupant's head is
When they come into contact with the cover 11, they crush and deform to absorb impact energy.
【００４６】そして、このようなエアバッグ装置１０の
配置構成にあって、前記カバー１１の取付片１６に前述
のカバー下端部の跳ね上げ挙動を促進する脆弱部２０を
設けてある。In the arrangement of the airbag device 10 described above, the attachment piece 16 of the cover 11 is provided with a fragile portion 20 for promoting the flip-up behavior of the lower end of the cover.
【００４７】この脆弱部２０としては前記第１実施形態
と同様、スリット２０Ａ又はビード部、薄肉部等が選択
的に用いられ、その設定位置は取付片１６のウエルドナ
ット１８，ナット１９による固定点よりも下方、より好
ましくは応力集中し易い取付片１６の付け根付近に前後
方向に線状に設けられ、かつ、その前後方向止端部と取
付片１６の前後端縁との間には所定幅Ｗで取付片１６の
一般部が確保される（図２参照）。As in the first embodiment, a slit 20A or a bead portion, a thin-walled portion, or the like is selectively used as the fragile portion 20, and its set position is a fixing point of the mounting piece 16 by the weld nut 18 and the nut 19. Below, more preferably near the base of the mounting piece 16 where stress concentration is liable to occur. The mounting piece 16 is linearly provided in the front-rear direction. The general part of the mounting piece 16 is secured by W (see FIG. 2).
【００４８】従って、この第２実施形態の場合にあって
も、エアバッグ装置１０の作動時には、前記脆弱部２０
の設定によって、エアバッグ本体１２の膨張圧によるカ
バー１１の下端部の跳ね上げ挙動を速やかに行わせるこ
とができて、前記第１実施形態と同様の効果を奏するこ
とができる。Therefore, even in the case of the second embodiment, when the airbag device 10 is operated, the fragile portion 20
With this setting, the lower end of the cover 11 can be quickly jumped up by the inflation pressure of the airbag body 12, and the same effect as in the first embodiment can be obtained.
【図１】本発明の第１実施形態の配設状態を車室側から
見た説明図。FIG. 1 is an explanatory view showing an arrangement state of a first embodiment of the present invention as viewed from a passenger compartment side.
【図２】図１のＡ範囲部の拡大図。FIG. 2 is an enlarged view of an area A in FIG. 1;
【図３】図２のＢ−Ｂ線に沿う断面図。FIG. 3 is a sectional view taken along the line BB of FIG. 2;
【図４】本発明の第２実施形態を示す断面図。FIG. 4 is a sectional view showing a second embodiment of the present invention.
４ ルーフサイドレール ６ ルーフサイドレールインナ １０ エアバッグ装置 １１ カバー １２ エアバッグ本体 １５ カバーの上壁 １６ 取付片 １７ 挿通孔 ２０ 脆弱部 ２０Ａ スリット Reference Signs List 4 roof side rail 6 roof side rail inner 10 airbag device 11 cover 12 airbag body 15 cover upper wall 16 mounting piece 17 insertion hole 20 fragile portion 20A slit
Claims (7)
ールインナの車室側の側面に前後方向に沿って配置され
て、前記取付片を介してルーフサイドレールインナに固
定されたカバーと、 該カバーの内側に折り畳んで収納されたエアバッグ本体
と、を備え、 車両の衝突時に該エアバッグ本体を膨張させて、その膨
張圧により前記カバーの下端部を跳ね上げて該エアバッ
グ本体を下向きに展開させるようにした車両用エアバッ
グ装置において、 前記取付片にカバー下端部の跳ね上げ挙動を促進する脆
弱部を設けたことを特徴とする車両用エアバッグ装置。1. A cover provided with a mounting piece at an upper end portion, which is disposed along a front-rear direction on a side surface of the inner side of the roof side rail inner side, and fixed to the roof side rail inner via the mounting piece, An airbag body folded and housed inside the cover, wherein the airbag body is inflated at the time of a vehicle collision, and the lower end of the cover is flipped up by the inflation pressure so that the airbag body faces downward. An airbag device for a vehicle, wherein the mounting piece is provided with a fragile portion for promoting a flip-up behavior of a lower end portion of the cover.
る請求項１に記載の車両用エアバッグ装置。2. The vehicle airbag device according to claim 1, wherein the fragile portion is a slit.
る請求項１に記載の車両用エアバッグ装置。3. The vehicle airbag device according to claim 1, wherein the fragile portion is a bead portion.
請求項１に記載の車両用エアバッグ装置。4. The vehicle airbag device according to claim 1, wherein the fragile portion is a thin portion.
けられ、脆弱部を該挿通孔よりも下方位置に設けたこと
を特徴とする請求項１〜４の何れかに記載の車両用エア
バッグ装置。5. The vehicle according to claim 1, wherein an insertion hole of the fixing fastening member is provided in the mounting piece, and the fragile portion is provided below the insertion hole. Airbag device.
面に対して略垂直に形成したカバー上壁の端部から上向
きに曲折成形してあり、脆弱部をこれら取付片と上壁と
の曲折部に設けたことを特徴とする請求項１〜５の何れ
かに記載の車両用エアバッグ装置。6. The mounting piece is formed by bending upward from an end of a cover upper wall formed substantially perpendicularly to the side surface of the roof side rail inner, and a fragile portion is formed by bending the mounting piece and the upper wall. The airbag device for a vehicle according to any one of claims 1 to 5, wherein the airbag device is provided in a vehicle.
分に前後方向に形成して、該脆弱部の前後方向形成止端
部と取付片の前後端縁との間に所要幅で該取付片の一般
部を確保したことを特徴とする請求項１〜６の何れかに
記載の車両用エアバッグ装置。7. A fragile portion is formed in the front-rear direction at an intermediate portion of the length of the mounting piece in the front-rear direction, and has a required width between a front-rear forming end of the fragile portion and the front-rear end edge of the mounting piece. The vehicle airbag device according to any one of claims 1 to 6, wherein a general portion of the mounting piece is secured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000399151A JP3702786B2 (en) | 2000-12-27 | 2000-12-27 | Airbag device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000399151A JP3702786B2 (en) | 2000-12-27 | 2000-12-27 | Airbag device for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002193066A true JP2002193066A (en) | 2002-07-10 |
| JP3702786B2 JP3702786B2 (en) | 2005-10-05 |
Family
ID=18863984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000399151A Expired - Fee Related JP3702786B2 (en) | 2000-12-27 | 2000-12-27 | Airbag device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3702786B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009040096A (en) * | 2007-08-06 | 2009-02-26 | Mitsubishi Motors Corp | Curtain airbag |
| JP2010506774A (en) * | 2006-10-16 | 2010-03-04 | オートリブ ディベロップメント エービー | Airbag with flexible fixed connector |
-
2000
- 2000-12-27 JP JP2000399151A patent/JP3702786B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010506774A (en) * | 2006-10-16 | 2010-03-04 | オートリブ ディベロップメント エービー | Airbag with flexible fixed connector |
| JP2009040096A (en) * | 2007-08-06 | 2009-02-26 | Mitsubishi Motors Corp | Curtain airbag |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3702786B2 (en) | 2005-10-05 |
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