JPH11245759A - Air bag device for driver's seat - Google Patents

Air bag device for driver's seat

Info

Publication number
JPH11245759A
JPH11245759A JP10054546A JP5454698A JPH11245759A JP H11245759 A JPH11245759 A JP H11245759A JP 10054546 A JP10054546 A JP 10054546A JP 5454698 A JP5454698 A JP 5454698A JP H11245759 A JPH11245759 A JP H11245759A
Authority
JP
Japan
Prior art keywords
bag
inner bag
occupant
wheel rim
airbag
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.)
Pending
Application number
JP10054546A
Other languages
Japanese (ja)
Inventor
Takeshi Kai
健 甲斐
Hiroyuki Saito
博之 斉藤
Katsuhiko Morita
克彦 盛田
Kodai Sato
剛大 佐藤
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP10054546A priority Critical patent/JPH11245759A/en
Publication of JPH11245759A publication Critical patent/JPH11245759A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To unfold an inner bag, performing a main role for the binding of an occupant at stable, optimum timing at all times, in this driver's seat air bag device equipped with both inner and outer bags. SOLUTION: An air bag 12 to be unfolded in a car cabin from the central part of a steering wheel 2 by dint of high pressure ags being generated out of an inflator 11 is comprised of an inner bag 12i to be unfolded on the inside of a wheel rim 6, and an outer bag 12o being unfolded on an outer boundary of the inner bag 12i and coming into contact with the front of the wheel rim 6, and each inner space of both these bags 12i and 12o is interconnected to each other by each communicating hole 17. At the time of a car crash, first of all, the inner bag 12i is inflated, and successively the outer bag 12o is inflated by the high pressure gas passing through the communicating holes 17.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、車両の衝突時にス
テアリングホイールの中央部から展開するエアバッグで
乗員を拘束する運転席用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 driver's seat that restrains an occupant by an airbag that is deployed from the center of a steering wheel when a vehicle collides.

【0002】[0002]

【従来の技術】かかる運転席用エアバッグ装置におい
て、エアバッグをテアリングホイールのホイールリムの
内側に展開する内側バッグと、この内側バッグの周囲に
展開して前記ホイールリムの正面に当接する環状の外側
バッグとから構成することにより、外側バッグで内側バ
ッグの位置を保持して乗員の拘束性能を高めるものが、
特開昭48−50437号公報により公知である。
2. Description of the Related Art In such an airbag device for a driver's seat, an inner bag that deploys an airbag inside a wheel rim of a tearing wheel, and an annular bag that extends around the inner bag and abuts the front surface of the wheel rim. By configuring with the outer bag, the outer bag holds the position of the inner bag and enhances the restraint performance of the occupant,
It is known from JP-A-48-50437.

【0003】[0003]

【発明が解決しようとする課題】ところで、上記特開昭
48−50437号公報に記載されたものは、インフレ
ータが発生した高圧ガスが外側バッグからオリフィスを
経て内側バッグに供給されるため、車両の衝突時に先ず
外側バッグが展開し、それに遅れて内側バッグが展開す
ることになる。しかしながら、このように外側バッグを
経由して供給される高圧ガスで内側バッグを展開させる
と、乗員の拘束機能の主要部を担う内側バッグを適切な
タイミングで展開させることができず、乗員の効果的な
拘束が難しくなる問題がある。
However, in the vehicle described in Japanese Patent Application Laid-Open No. 48-50437, the high-pressure gas generated by the inflator is supplied from the outer bag to the inner bag through the orifice. At the time of a collision, the outer bag is deployed first, and later the inner bag is deployed. However, when the inner bag is deployed with the high-pressure gas supplied through the outer bag in this manner, the inner bag, which is a main part of the occupant restraining function, cannot be deployed at an appropriate timing, and the effect of the occupant cannot be improved. There is a problem that it becomes difficult to restrain the situation.

【0004】本発明は前述の事情に鑑みてなされたもの
で、内側バッグおよび外側バッグを備えた運転席用エア
バッグ装置において、内側バッグを適切なタイミングで
展開させることを目的とする。
The present invention has been made in view of the above circumstances, and has as its object to deploy an inner bag at an appropriate timing in an airbag device for a driver's seat including an inner bag and an outer bag.

【0005】[0005]

【課題を解決するための手段】前記目的を達成するため
に、請求項1に記載された発明は、車両の衝突時にイン
フレータが発生する高圧ガスでステアリングホイールの
中央部から車室内に展開して乗員を拘束するエアバッグ
が、ステアリングホイールのホイールリムの内側に展開
する内側バッグと、この内側バッグの外周に展開して前
記ホイールリムの正面に当接する外側バッグとから構成
された運転席用エアバッグ装置において、内側バッグの
内部空間と外側バッグの内部空間とを連通孔で連通さ
せ、インフレータから内側バッグに供給した高圧ガスの
一部を前記連通孔を介して外側バッグに供給することを
特徴とする。
In order to achieve the above object, according to the present invention, a high pressure gas generated by an inflator at the time of collision of a vehicle is developed from a central portion of a steering wheel into a vehicle interior. An airbag for restraining an occupant is an airbag for a driver's seat comprising an inner bag deployed inside a wheel rim of a steering wheel, and an outer bag deployed around the inner bag and abutting against the front of the wheel rim. In the bag device, the internal space of the inner bag and the internal space of the outer bag are communicated through a communication hole, and a part of the high-pressure gas supplied from the inflator to the inner bag is supplied to the outer bag through the communication hole. And

【0006】上記構成によれば、車両の衝突時にインフ
レータが発生した高圧ガスは先ず内側バッグに供給され
て該内側バッグを展開させる。内側バッグが展開すると
余剰の高圧ガスが連通孔を経て外側バッグに供給されて
該外側バッグを展開させる。このように乗員の拘束機能
の主要部を担う内側バッグにインフレータからの高圧ガ
スを直接供給するので、その内側バッグを適切なタイミ
ングで展開させて乗員の拘束性能を高めることができ
る。しかも乗員の荷重は内側バッグから外側バッグを経
てステアリングホイールのホイールリムの正面に支持さ
れるため、内側バッグが乗員の荷重で横方向に逃げて拘
束性能が低下するのを回避することができる。
According to the above configuration, the high-pressure gas generated by the inflator at the time of the collision of the vehicle is first supplied to the inner bag to expand the inner bag. When the inner bag is deployed, excess high-pressure gas is supplied to the outer bag via the communication hole to deploy the outer bag. Since the high-pressure gas from the inflator is directly supplied to the inner bag that plays a major role in the occupant restraining function, the inner bag can be deployed at an appropriate timing to improve the occupant restraining performance. In addition, since the load of the occupant is supported from the inner bag to the front of the wheel rim of the steering wheel via the outer bag, it is possible to prevent the inner bag from escaping laterally due to the load of the occupant and deteriorating the restraint performance.

【0007】尚、ステアリングホイールのホイールリム
の正面とは、前記ホイールリムの乗員に対向する側の面
を指す。
The front of the wheel rim of the steering wheel refers to the surface of the wheel rim facing the occupant.

【0008】[0008]

【発明の実施の形態】以下、本発明の実施の形態を、添
付図面に示した本発明の実施例に基づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

【0009】図1〜図5は本発明の第1実施例を示すも
ので、図1は運転席用エアバッグ装置を搭載した車両の
部分側面図、図2は図1の2−2線拡大断面図、図3は
エアバッグの展開時の作用説明図、図4はエアバッグの
展開状態を示す正面図、図5は内側バッグおよび外側バ
ッグの容積比率を変えた状態を示す図である。
1 to 5 show a first embodiment of the present invention. FIG. 1 is a partial side view of a vehicle equipped with an airbag device for a driver's seat, and FIG. 2 is an enlarged view of line 2-2 in FIG. FIG. 3 is a cross-sectional view, FIG. 3 is an explanatory view of the operation when the airbag is deployed, FIG. 4 is a front view showing the deployed state of the airbag, and FIG. 5 is a view showing a state in which the volume ratio of the inner bag and the outer bag is changed.

【0010】図1に示すように、車両の衝突時に運転席
のシート1に着座したドライバーを拘束すべく、ステア
リングホイール2の内部にエアバッグ装置が設けられ
る。
As shown in FIG. 1, an airbag device is provided inside a steering wheel 2 to restrain a driver sitting on a driver's seat 1 at the time of a vehicle collision.

【0011】図2に示すように、ステアリングホイール
2は、ステアリングシャフト3の後端に相対回転不能に
嵌合してナット4で固定されたステアリングボス5と、
このステアリングボス5を囲繞するように配置された環
状のホイールリム6と、前記ステアリングボス5に固定
されたフロントカバー7と、このフロントカバー7に結
合されたリヤカバー8と、前記フロントカバー7をホイ
ールリム6に接続する複数本のスポーク9…とを備えて
おり、フロントカバー7およびリヤカバー8により区画
される空間にエアバッグモジュール10が収納される。
As shown in FIG. 2, a steering wheel 2 includes a steering boss 5 fitted to a rear end of a steering shaft 3 so as to be relatively non-rotatable and fixed with a nut 4.
An annular wheel rim 6 arranged to surround the steering boss 5, a front cover 7 fixed to the steering boss 5, a rear cover 8 coupled to the front cover 7, and a wheel A plurality of spokes 9 connected to the rim 6 are provided, and the airbag module 10 is housed in a space defined by the front cover 7 and the rear cover 8.

【0012】エアバッグモジュール10は、高圧ガスを
発生するインフレータ11と、インフレータ11が発生
した高圧ガスにより膨張するエアバッグ12とから構成
される。インフレータ11はカップ状のカバー部材13
を備えており、このカバー部材13の外周に一体に形成
された取付フランジ131 がリヤカバー8の内周に一体
に形成された取付フランジ81 に複数本のリベット14
…で固定される。カバー部材13に複数本のボルト15
…で固定された燃焼器ハウジング16の内部に粒状のガ
ス発生剤19…が充填される。燃焼器ハウジング16の
内部には着火剤20が配置されており、燃焼器ハウジン
グ16の内部に延びる点火器21の先端が前記着火剤2
0に臨んでいる。
The airbag module 10 includes an inflator 11 for generating high-pressure gas, and an airbag 12 inflated by the high-pressure gas generated by the inflator 11. The inflator 11 has a cup-shaped cover member 13.
Includes a plurality of rivets 14 to the mounting flange 8 1 formed integrally with the inner periphery of the mounting flange 13 1 rear cover 8 formed integrally with the outer periphery of the cover member 13
Fixed by ... The cover member 13 has a plurality of bolts 15
Are filled with the particulate gas generating agents 19. An igniting agent 20 is arranged inside the combustor housing 16, and a tip of an igniter 21 extending inside the combustor housing 16 is connected to the igniting agent 2.
It is facing 0.

【0013】図3を併せて参照すると明らかなように、
燃焼器ハウジング16とリヤカバー8とに挟まれた空間
に折り畳み状態で収納されるエアバッグ12は、袋状の
内側バッグ12iとドーナツ状の外側バッグ12oとか
ら構成されており、内側バッグ12iの基部および外側
バッグ12oの基部は3重に重ね合わされて燃焼器ハウ
ジング16の外周部に前記複数本のボルト15…で共締
めされる。
Referring to FIG. 3 together, it is apparent that
The airbag 12 housed in a folded state in a space sandwiched between the combustor housing 16 and the rear cover 8 includes a bag-shaped inner bag 12i and a donut-shaped outer bag 12o, and a base portion of the inner bag 12i. The base of the outer bag 12o is overlapped three times and fastened together to the outer periphery of the combustor housing 16 with the plurality of bolts 15.

【0014】内側バッグ12iおよび外側バッグ12o
の一部は2重に重なって縫製部S1において一体に縫い
合わされる。そして両者の重合部に縫製部S2 に囲まれ
た4個の連通孔17…が90°間隔で形成されており、
これら連通孔17…を介して内側バッグ12iの内部お
よび外側バッグ12oの内部が相互に連通する。
Inner bag 12i and outer bag 12o
Some of are sewn together at sewn portion S 1 overlaps doubly. Then both of the polymerization unit of four communication holes surrounded by sewing portion S 2 in 17 ... are formed at intervals of 90 °,
The interior of the inner bag 12i and the interior of the outer bag 12o communicate with each other via these communication holes 17.

【0015】燃焼器ハウジング16の外周面にアウター
ハウジング22を固定することにより、燃焼器ハウジン
グ16およびアウターハウジング22間に環状空間23
が区画される。環状空間23は複数のガス通路161
を介して燃焼器ハウジング16の内部に連通するととも
に、アウターハウジング22に形成した複数のガス通路
221 …を介して内側バッグ12iの内部空間に連通す
る。アウターハウジング22のガス通路221 …には、
ガス発生剤19…の燃焼により発生した塵がエアバッグ
12に供給されるのを阻止すべくフィルター24…が設
けられる。
By fixing the outer housing 22 to the outer peripheral surface of the combustor housing 16, an annular space 23 is provided between the combustor housing 16 and the outer housing 22.
Is partitioned. The annular space 23 includes a plurality of gas passages 16 1 .
Communicates with the inside of the combustor housing 16 through a plurality of gas passages 22 1 ... Formed in the outer housing 22. In the gas passages 22 1 ... Of the outer housing 22,
Filters 24 are provided to prevent dust generated by combustion of the gas generating agents 19 from being supplied to the airbag 12.

【0016】車両の前後方向の加速度を検出する加速度
センサ25からの信号が入力される点火制御装置26
は、車両の衝突時に所定値以上の加速度が検出される
と、点火器21に通電してインフレータ11を作動させ
ることによりエアバッグ12を膨張させる。
An ignition control device 26 to which a signal from an acceleration sensor 25 for detecting the longitudinal acceleration of the vehicle is inputted.
When an acceleration equal to or greater than a predetermined value is detected at the time of a vehicle collision, the airbag 12 is inflated by energizing the igniter 21 to operate the inflator 11.

【0017】次に、前述の構成を備えた本発明の実施例
の作用を説明する。
Next, the operation of the embodiment of the present invention having the above configuration will be described.

【0018】車両の衝突時に加速度センサ25が所定値
以上の加速度を検出すると、点火制御装置26が出力す
る点火指令信号により点火器21に通電され、着火剤2
0が着火してガス発生剤19…が燃焼する。ガス発生剤
19…の燃焼により発生した高圧ガスは燃焼器ハウジン
グ16のガス通路161 …から環状空間23に流入し、
そこからフィルター24…およびガス通路221 …を経
て内側バッグ12iの内部に流入する。
When the acceleration sensor 25 detects an acceleration equal to or greater than a predetermined value during a vehicle collision, the ignition device 21 is energized by an ignition command signal output from the ignition control device 26, and the ignition agent 2 is turned on.
0 is ignited and the gas generating agents 19 burn. The high-pressure gas generated by the combustion of the gas generating agents 19 flows into the annular space 23 from the gas passages 16 1 of the combustor housing 16,
From there, it flows into the inside of the inner bag 12i through the filters 24 and the gas passages 22 1 .

【0019】高圧ガスの供給を受けた内側バッグ12i
が膨張を開始すると、その圧力でリヤカバー8が破断
し、図3に示すように内側バッグ12iが車室内に展開
する。展開した内側バッグ12iの内圧が高まると、内
側バッグ12i内の高圧ガスが4個の連通孔17…を介
して外側バッグ12o内に流入し、その外側バッグ12
oを膨張させる。
Inner bag 12i supplied with high-pressure gas
Starts to expand, the rear cover 8 is broken by the pressure, and the inner bag 12i is deployed in the vehicle compartment as shown in FIG. When the internal pressure of the developed inner bag 12i increases, the high-pressure gas in the inner bag 12i flows into the outer bag 12o through the four communication holes 17 and the outer bag 12o.
Inflate o.

【0020】外側バッグ12oおよび内側バッグ12i
が共に膨張した状態では、ドーナツ状の外側バッグ12
oの裏面(車体前方側の面)がステアリングホイール2
のホイールリム6の正面(車体後方側の面)に当接する
とともに、その外側バッグ12oの内周に内側バッグ1
2iが嵌合するように支持される。
Outer bag 12o and inner bag 12i
Are inflated together, the donut-shaped outer bag 12
The back of o (the front side of the vehicle) is the steering wheel 2
Abuts on the front surface of the wheel rim 6 (the surface on the rear side of the vehicle body) and the inner bag 1
2i are supported to fit.

【0021】而して、図1に示すように、慣性で前方に
移動する乗員を内側バッグ12iで拘束する際に、外側
バッグ12oで内側バッグ12iの外周部を支持して倒
れを防止することにより、乗員を内側バッグ12iの中
央部で確実に拘束することができる。また乗員から内側
バッグ12iに伝達された前向きの荷重は、内側バッグ
12iから外側バッグ12oを経てホイールリム6に伝
達されるため、前記前向きの荷重をホイールリム6で確
実に受け止めて拘束性能を高めることができる。更に、
乗員から伝達される前向きの荷重で内側バッグ12iの
内圧が高まると、内側バッグ12i内の高圧ガスの一部
が連通孔17…を介して外側バッグ12o内に押し出さ
れるため、乗員を柔らかく拘束することができる。
As shown in FIG. 1, when the occupant moving forward by inertia is restrained by the inner bag 12i, the outer bag 12o supports the outer peripheral portion of the inner bag 12i to prevent the occupant from falling. Thereby, the occupant can be reliably restrained at the center of the inner bag 12i. Further, the forward load transmitted from the occupant to the inner bag 12i is transmitted from the inner bag 12i to the wheel rim 6 via the outer bag 12o. be able to. Furthermore,
When the inner pressure of the inner bag 12i increases due to the forward load transmitted from the occupant, a part of the high-pressure gas in the inner bag 12i is pushed out into the outer bag 12o through the communication holes 17. be able to.

【0022】更にまた、インフレータ11が発生する高
圧ガスは、先ず内側バッグ12iを膨張させた後に外側
バッグ12oを膨張させるので、乗員の拘束に主要な役
割を果たす内側バッグ12iを常に安定した最適のタイ
ミングで展開させることが可能になり、乗員の拘束性能
を一層高めることができる。
Furthermore, the high-pressure gas generated by the inflator 11 first inflates the inner bag 12i and then inflates the outer bag 12o, so that the inner bag 12i, which plays a major role in restraining the occupant, is always stable and optimal. It can be deployed at the timing, and the restraint performance of the occupant can be further enhanced.

【0023】尚、図5に示すように、内側バッグ12i
の容積および外側バッグ12oの容積の比率を変化させ
ることにより、乗員の拘束性能を様々に調整することが
可能となる。
As shown in FIG. 5, the inner bag 12i
By changing the ratio between the volume of the outer bag 12o and the volume of the outer bag 12o, the restraint performance of the occupant can be variously adjusted.

【0024】次に、図6に基づいて本発明の第2実施例
を説明する。
Next, a second embodiment of the present invention will be described with reference to FIG.

【0025】第2実施例のエアバッグ12は、その外側
バッグ12o,12oの構造において第1実施例と異な
っている。即ち、第1実施例の外側バッグ12oは内側
バッグ12iの外周を囲むようにドーナツ状に形成され
ているのに対し、第2実施例の外側バッグ12o,12
oは2分割されて内側バッグ12iの上部外周および下
部外周に配置されている。このように外側バッグ12
o,12oを2分割することにより、外側バッグ12
o,12oの寸法や形状をホイールリム6の剛性に見合
うように設定する際の自由度が増加する。
The airbag 12 of the second embodiment differs from the first embodiment in the structure of the outer bags 12o, 12o. That is, while the outer bag 12o of the first embodiment is formed in a donut shape so as to surround the outer periphery of the inner bag 12i, the outer bags 12o and 12o of the second embodiment are formed.
o is divided into two and arranged on the upper outer periphery and the lower outer periphery of the inner bag 12i. Thus, the outer bag 12
o, 12o, the outer bag 12
The degree of freedom in setting the dimensions and shapes of o and 12o to match the rigidity of the wheel rim 6 increases.

【0026】次に、図7に基づいて本発明の第3実施例
を説明する。
Next, a third embodiment of the present invention will be described with reference to FIG.

【0027】第3実施例のエアバッグ12は、レーシン
グカー等に装着される非円形のステアリングホイール2
に装着されるもので、単一の外側バッグ12oがホイー
ルリム6の切欠部61 を架橋するように内側バッグ12
iの上部外周に偏心して配置されている。ホイールリム
6に切欠部61 が存在すると、この切欠部61 に内側バ
ッグ12iが嵌まり込んで拘束性能が低下する可能性が
あるが、外側バッグ12oでホイールリム6の切欠部6
1 を架橋することにより、内側バッグ12iに作用する
前向きの荷重を外側バッグ12oを介して確実にホイー
ルリム6に伝達し、乗員の拘束性能を高めることができ
る。
The airbag 12 of the third embodiment is a non-circular steering wheel 2 mounted on a racing car or the like.
It intended to be mounted on the inner bag 12 so that a single outer bag 12o to crosslink the notch 61 of the wheel rim 6
It is eccentrically arranged on the upper outer periphery of i. As the cutouts 61 to the wheel rim 6 is present, but restraining performance fits the inner bag 12i to the cutout portion 61 may be reduced, the notch of the wheel rim 6 in the outer bag 12o 6
By bridging 1 , the forward load acting on the inner bag 12i can be reliably transmitted to the wheel rim 6 via the outer bag 12o, and the occupant restraint performance can be enhanced.

【0028】以上、本発明の実施例を詳述したが、本発
明はその要旨を逸脱しない範囲で種々の設計変更を行う
ことが可能である。
Although the embodiment of the present invention has been described in detail, various design changes can be made in the present invention without departing from the gist thereof.

【0029】例えば、内側バッグ12iおよび外側バッ
グ12oを連通させる連通孔17…の数は実施例のもの
に限定されず、適宜変更することができる。また連通孔
17…は一応ベントホールの機能を有しているが、更に
外側バッグ12oに大気に連通するベントホールを設け
ることも可能である。
For example, the number of communication holes 17 communicating the inner bag 12i and the outer bag 12o is not limited to that of the embodiment but can be changed as appropriate. Although the communication holes 17 have a function of a vent hole for the time being, it is also possible to provide a vent hole communicating with the atmosphere in the outer bag 12o.

【0030】[0030]

【発明の効果】以上のように請求項1に記載された発明
によれば、車両の衝突時にインフレータが発生した高圧
ガスは先ず内側バッグに供給されて該内側バッグを展開
させる。内側バッグが展開すると余剰の高圧ガスが連通
孔を経て外側バッグに供給されて該外側バッグを展開さ
せる。このように乗員の拘束機能の主要部を担う内側バ
ッグにインフレータからの高圧ガスを直接供給するの
で、その内側バッグを適切なタイミングで展開させて乗
員の拘束性能を高めることができる。しかも乗員の荷重
は内側バッグから外側バッグを経てステアリングホイー
ルのホイールリムの正面に支持されるため、内側バッグ
が乗員の荷重で横方向に逃げて拘束性能が低下するのを
回避することができる。
As described above, according to the first aspect of the present invention, the high-pressure gas generated by the inflator at the time of collision of the vehicle is first supplied to the inner bag to expand the inner bag. When the inner bag is deployed, excess high-pressure gas is supplied to the outer bag via the communication hole to deploy the outer bag. Since the high-pressure gas from the inflator is directly supplied to the inner bag that plays a major role in the occupant restraining function, the inner bag can be deployed at an appropriate timing to improve the occupant restraining performance. In addition, since the load of the occupant is supported from the inner bag to the front of the wheel rim of the steering wheel via the outer bag, it is possible to prevent the inner bag from escaping laterally due to the load of the occupant and deteriorating the restraint performance.

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

【図1】運転席用エアバッグ装置を搭載した車両の部分
側面図
FIG. 1 is a partial side view of a vehicle equipped with a driver airbag device.

【図2】図1の2−2線拡大断面図FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG. 1;

【図3】エアバッグの展開時の作用説明図FIG. 3 is an explanatory view of the operation when the airbag is deployed.

【図4】エアバッグの展開状態を示す正面図FIG. 4 is a front view showing the deployed state of the airbag.

【図5】内側バッグおよび外側バッグの容積比率を変え
た状態を示す図
FIG. 5 is a diagram showing a state in which the volume ratio of the inner bag and the outer bag is changed.

【図6】第2実施例に係るエアバッグの展開状態を示す
正面図
FIG. 6 is a front view showing the deployed state of the airbag according to the second embodiment.

【図7】第3実施例に係るエアバッグの展開状態を示す
正面図
FIG. 7 is a front view showing the deployed state of the airbag according to the third embodiment.

【符号の説明】[Explanation of symbols]

2 ステアリングホイール 6 ホイールリム 11 インフレータ 12 エアバッグ 12i 内側バッグ 12o 外側バッグ 17 連通孔 2 Steering wheel 6 Wheel rim 11 Inflator 12 Airbag 12i Inner bag 12o Outer bag 17 Communication hole

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 剛大 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Godai Sato 1-4-1, Chuo, Wako-shi, Saitama

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 車両の衝突時にインフレータ(11)が
発生する高圧ガスでステアリングホイール(2)の中央
部から車室内に展開して乗員を拘束するエアバッグ(1
2)が、ステアリングホイール(2)のホイールリム
(6)の内側に展開する内側バッグ(12i)と、この
内側バッグ(12i)の外周に展開して前記ホイールリ
ム(6)の正面に当接する外側バッグ(12o)とから
構成された運転席用エアバッグ装置において、 内側バッグ(12i)の内部空間と外側バッグ(12
o)の内部空間とを連通孔(17)で連通させ、インフ
レータ(11)から内側バッグ(12i)に供給した高
圧ガスの一部を前記連通孔(17)を介して外側バッグ
(12o)に供給することを特徴とする運転席用エアバ
ッグ装置。
An airbag (1) which is deployed from a central portion of a steering wheel (2) into a vehicle interior by a high-pressure gas generated by an inflator (11) at the time of a vehicle collision and restrains an occupant.
2) is an inner bag (12i) that is deployed inside the wheel rim (6) of the steering wheel (2), and is deployed on the outer periphery of the inner bag (12i) and abuts on the front surface of the wheel rim (6). An airbag device for a driver's seat comprising an outer bag (12o) and an inner space of an inner bag (12i) and an outer bag (12o).
o) through the communication hole (17) and a part of the high-pressure gas supplied from the inflator (11) to the inner bag (12i) to the outer bag (12o) through the communication hole (17). An airbag device for a driver's seat, which is supplied.
JP10054546A 1998-03-06 1998-03-06 Air bag device for driver's seat Pending JPH11245759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10054546A JPH11245759A (en) 1998-03-06 1998-03-06 Air bag device for driver's seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10054546A JPH11245759A (en) 1998-03-06 1998-03-06 Air bag device for driver's seat

Publications (1)

Publication Number Publication Date
JPH11245759A true JPH11245759A (en) 1999-09-14

Family

ID=12973688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10054546A Pending JPH11245759A (en) 1998-03-06 1998-03-06 Air bag device for driver's seat

Country Status (1)

Country Link
JP (1) JPH11245759A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007062469A (en) * 2005-08-30 2007-03-15 Toyoda Gosei Co Ltd Air bag device
US7210701B2 (en) * 2003-01-14 2007-05-01 Takata-Petri Ag Airbag system
JP2008179173A (en) * 2007-01-23 2008-08-07 Toyota Motor Corp Airbag device of vehicle
US7631891B2 (en) 2006-08-25 2009-12-15 Toyota Jidosha Kabushiki Kaisha Driver-side airbag device
US8024090B2 (en) 2007-03-02 2011-09-20 Toyota Jidosha Kabushiki Kaisha Vehicle steering system
JP2011207414A (en) * 2010-03-30 2011-10-20 Nippon Plast Co Ltd Airbag device for driver's seat
US8079615B2 (en) 2006-10-16 2011-12-20 Toyota Jidosha Kabushiki Kaisha Vehicle steering device
US9321421B2 (en) 2013-06-25 2016-04-26 Toyota Jidosha Kabushiki Kaisha Driver seat airbag system
JP2016199123A (en) * 2015-04-09 2016-12-01 トヨタ自動車株式会社 Vehicular driver seat airbag device
DE102017121681A1 (en) 2016-09-28 2018-03-29 Toyoda Gosei Co., Ltd. air bag
JPWO2017061163A1 (en) * 2015-10-09 2018-05-10 オートリブ ディベロップメント エービー Airbag device
JP2018122798A (en) * 2017-02-02 2018-08-09 豊田合成株式会社 Air bag
WO2018149801A1 (en) * 2017-02-14 2018-08-23 Audi Ag Double airbag system for protecting larger passenger spaces
WO2019069143A3 (en) * 2017-03-29 2019-06-13 Nio Nextev Limited Airbag deployment trajectory control mechanism and method with positioner
US10343643B2 (en) 2017-03-29 2019-07-09 Nio Nextev Limited Airbag deployment trajectory control mechanism and method
US11532098B2 (en) 2020-09-01 2022-12-20 Ford Global Technologies, Llc Determining multi-degree-of-freedom pose to navigate a vehicle

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JPS4850437A (en) * 1971-10-20 1973-07-16
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7210701B2 (en) * 2003-01-14 2007-05-01 Takata-Petri Ag Airbag system
JP2007062469A (en) * 2005-08-30 2007-03-15 Toyoda Gosei Co Ltd Air bag device
US7631891B2 (en) 2006-08-25 2009-12-15 Toyota Jidosha Kabushiki Kaisha Driver-side airbag device
US8079615B2 (en) 2006-10-16 2011-12-20 Toyota Jidosha Kabushiki Kaisha Vehicle steering device
JP2008179173A (en) * 2007-01-23 2008-08-07 Toyota Motor Corp Airbag device of vehicle
JP4613913B2 (en) * 2007-01-23 2011-01-19 トヨタ自動車株式会社 Vehicle airbag device
US8024090B2 (en) 2007-03-02 2011-09-20 Toyota Jidosha Kabushiki Kaisha Vehicle steering system
JP2011207414A (en) * 2010-03-30 2011-10-20 Nippon Plast Co Ltd Airbag device for driver's seat
US9321421B2 (en) 2013-06-25 2016-04-26 Toyota Jidosha Kabushiki Kaisha Driver seat airbag system
JP2016199123A (en) * 2015-04-09 2016-12-01 トヨタ自動車株式会社 Vehicular driver seat airbag device
JPWO2017061163A1 (en) * 2015-10-09 2018-05-10 オートリブ ディベロップメント エービー Airbag device
DE102017121681A1 (en) 2016-09-28 2018-03-29 Toyoda Gosei Co., Ltd. air bag
US20180086298A1 (en) * 2016-09-28 2018-03-29 Toyoda Gosei Co., Ltd. Airbag
US10507781B2 (en) 2016-09-28 2019-12-17 Toyoda Gosei Co., Ltd. Airbag
DE102017121681B4 (en) 2016-09-28 2022-10-27 Toyoda Gosei Co., Ltd. air bag
JP2018122798A (en) * 2017-02-02 2018-08-09 豊田合成株式会社 Air bag
US10507784B2 (en) 2017-02-02 2019-12-17 Toyoda Gosei Co., Ltd. Airbag
WO2018149801A1 (en) * 2017-02-14 2018-08-23 Audi Ag Double airbag system for protecting larger passenger spaces
US10953838B2 (en) 2017-02-14 2021-03-23 Audi Ag Double airbag system for protecting larger passenger spaces
WO2019069143A3 (en) * 2017-03-29 2019-06-13 Nio Nextev Limited Airbag deployment trajectory control mechanism and method with positioner
US10343643B2 (en) 2017-03-29 2019-07-09 Nio Nextev Limited Airbag deployment trajectory control mechanism and method
US11532098B2 (en) 2020-09-01 2022-12-20 Ford Global Technologies, Llc Determining multi-degree-of-freedom pose to navigate a vehicle

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