JP2006256386A - Airbag device for vehicle - Google Patents

Airbag device for vehicle Download PDF

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JP2006256386A
JP2006256386A JP2005073699A JP2005073699A JP2006256386A JP 2006256386 A JP2006256386 A JP 2006256386A JP 2005073699 A JP2005073699 A JP 2005073699A JP 2005073699 A JP2005073699 A JP 2005073699A JP 2006256386 A JP2006256386 A JP 2006256386A
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air chamber
airbag
physique
vehicle
occupant
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JP4781699B2 (en
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Aki Yokoyama
亜紀 横山
Norimasa Goto
教将 後藤
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Nihon Plast Co Ltd
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Nihon Plast Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an airbag device for a vehicle capable of obtaining appropriate energy absorption performance according to an occupant's physique. <P>SOLUTION: The airbag 4 is divided into an upper air chamber A and a lower chamber B by a partition wall 11. Inflators 5, 6 are provided in the upper air chamber A and the lower air chamber B respectively, and a physique sensor S detecting the physique of the occupant 14 is also provided. When the physique sensor S detects the physique of larger than a predetermined value, the head part of the occupant 14 at the higher position corresponds to the vertical position, and the appropriate energy absorption performance can be obtained since both the upper air chamber A and the lower air chamber B are inflated. When the small physique is detected, the head part 15a of the occupant 15 at the lower position corresponds to the vertical position, and the appropriate energy absorption performance can be also obtained in this case since the only lower air chamber B is inflated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、車両用エアバッグ装置に関するものである。   The present invention relates to a vehicle airbag device.

自動車の助手席側のエアバッグ装置としては、フロントウィンドウパネルの下方に位置するインストルメントパネルの内部に、エアバッグを折り畳み状態で収納した構造になっている。エアバッグは、衝突時にインフレータから噴出されたガスにより膨張し、インストルメントパネルの上部から車室内側へ向けて展開し、前倒れしてくる乗員を受け止めて保護するようになっている（例えば、特許文献１。）。
特開平１１−５５０５号公報 The airbag device on the passenger seat side of an automobile has a structure in which an airbag is stored in a folded state inside an instrument panel located below the front window panel. The airbag is inflated by the gas ejected from the inflator at the time of a collision, and is deployed from the upper part of the instrument panel toward the vehicle interior side, and receives and protects an occupant who falls forward (for example, Patent Document 1).
Japanese Patent Laid-Open No. 11-5505

しかしながら、このような従来の技術にあっては、衝突時にエアバッグを全膨張させる構造のため、体格の大きな大人等にとっては、膨張したエアバッグと乗員頭部の上下位置が対応するが、体格の小さな子供等にとっては、膨張したエアバッグに対して乗員頭部の位置が相対的に低くなるおそれがある。   However, in such a conventional technique, since the airbag is fully inflated at the time of a collision, for an adult having a large physique, the inflated airbag corresponds to the vertical position of the occupant's head. For small children, the position of the occupant head may be relatively low with respect to the inflated airbag.

本発明は、このような従来の技術に着目してなされたものであり、乗員の体格に応じて適正なエネルギー吸収性能が得られる車両用エアバッグ装置を提供するものである。   The present invention has been made by paying attention to such a conventional technique, and provides a vehicle airbag device capable of obtaining appropriate energy absorption performance in accordance with the physique of an occupant.

請求項１記載の発明は、エアバッグを折り畳み状態でインストルメントパネルの内部に設置すると共に、衝突時にエアバッグを膨張させてインストルメントパネルの上部から車室内側へ展開させる車両用エアバッグ装置であって、前記エアバッグは隔壁により上下方向で複数の気室に区画され、各気室にガスを供給するインフレータがそれぞれ備えられ、且つ乗員の体格を検出する体格センサーが備えられ、該体格センサーが、所定値以上の体格を検出した場合には、エアバッグの全ての気室を膨張させ、それ以外の場合には、少なくとも最下部の気室を含み且つ最上部の気室を除いた状態でエアバッグを膨張させることを特徴とする。   The invention according to claim 1 is an air bag apparatus for a vehicle in which an air bag is installed inside an instrument panel in a folded state, and the air bag is inflated at the time of a collision and deployed from the upper part of the instrument panel to the vehicle interior side. The airbag is partitioned into a plurality of air chambers in the vertical direction by partition walls, each of which includes an inflator that supplies gas to each air chamber, and a physique sensor that detects the physique of an occupant, the physique sensor However, when a physique greater than or equal to a predetermined value is detected, all air chambers of the airbag are inflated, and in other cases, at least the lowermost air chamber is included and the uppermost air chamber is excluded And inflating the airbag.

請求項２記載の発明は、エアバッグが一枚の隔壁により、上部気室と下部気室に区画されていることを特徴とする。   The invention according to claim 2 is characterized in that the airbag is divided into an upper air chamber and a lower air chamber by a single partition wall.

請求項３記載の発明は、２つのインフレータが一体化されていることを特徴とする。   The invention described in claim 3 is characterized in that two inflators are integrated.

請求項４記載の発明は、下部気室が上部気室の車幅方向両側に回り込んだ状態で膨張することを特徴とする。   The invention according to claim 4 is characterized in that the lower air chamber expands in a state where it wraps around both sides of the upper air chamber in the vehicle width direction.

請求項５記載の発明は、上部気室の膨張圧力を下部気室よりも低く設定したことを特徴とする。   The invention according to claim 5 is characterized in that the expansion pressure of the upper air chamber is set lower than that of the lower air chamber.

請求項１記載の発明によれば、体格センサーが所定値以上の大きな体格を検出した場合には、エアバッグの全ての気室を膨張させるため、高い位置にある乗員頭部と上下位置が対応し、適正なエネルギー吸収性能が得られる。また、小さい体格を検出した場合には、最上部の気室が膨張せずに下側の気室だけが膨張するため、低い位置にある乗員頭部と上下位置が対応し、その場合も、適正なエネルギー吸収性能を得ることができる。   According to the first aspect of the present invention, when the physique sensor detects a large physique greater than a predetermined value, all the air chambers of the airbag are inflated. And proper energy absorption performance is obtained. In addition, when a small physique is detected, since the uppermost air chamber does not expand, only the lower air chamber expands, the occupant head in the lower position corresponds to the vertical position, and in that case, Appropriate energy absorption performance can be obtained.

請求項２記載の発明によれば、エアバッグが上部気室と下部気室に二分割された簡単な構造のため、エアバッグの製造が容易である。   According to the second aspect of the present invention, since the airbag is divided into the upper air chamber and the lower air chamber, it is easy to manufacture the air bag.

請求項３記載の発明によれば、２つのインフレータが一体化された構造のため、インフレータの設置作業が容易である。   According to the third aspect of the invention, since the two inflators are integrated, it is easy to install the inflator.

請求項４記載の発明によれば、下部気室が上部気室の車幅方向両側に回り込んでいるため、乗員の体格が小さく、下部気室だけを膨張させた場合には、乗員頭部を下部気室により車幅方向両側から挟むように支えることができる。従って、車両が斜めに衝突して、乗員頭部が斜め前方に倒れようとする場合も、乗員頭部を下部気室によりエアバッグの中央位置に保持して確実に保護することができる。   According to the fourth aspect of the present invention, since the lower air chamber wraps around both sides of the upper air chamber in the vehicle width direction, when the occupant is small in size and only the lower air chamber is inflated, the occupant head Can be supported by the lower air chamber so as to be sandwiched from both sides in the vehicle width direction. Therefore, even when the vehicle collides obliquely and the occupant head tends to fall obliquely forward, the occupant head can be reliably protected by being held at the center position of the airbag by the lower air chamber.

請求項５記載の発明によれば、上部気室の膨張圧力を下部気室よりも低く設定したため、乗員の体格が大きく、上部気室と下部気室の両方を膨張させた場合も、乗員頭部を下部気室により車幅方向両側から挟むように支えることができる。従って、車両が斜めに衝突して、乗員頭部が斜め前方に倒れようとする場合も、乗員頭部を下部気室によりエアバッグの中央位置に保持して確実に保護することができる。   According to the invention described in claim 5, since the expansion pressure of the upper air chamber is set lower than that of the lower air chamber, the occupant's physique is large, and even when both the upper air chamber and the lower air chamber are inflated, The portion can be supported by the lower air chamber so as to be sandwiched from both sides in the vehicle width direction. Therefore, even when the vehicle collides obliquely and the occupant head tends to fall obliquely forward, the occupant head can be reliably protected by being held at the center position of the airbag by the lower air chamber.

乗員の体格に応じて適正なエネルギー吸収性能が得られる車両用エアバッグ装置を提供するという目的を、エアバッグを折り畳み状態でインストルメントパネルの内部に設置すると共に、衝突時にエアバッグを膨張させてインストルメントパネルの上部から車室内側へ展開させる車両用エアバッグ装置であって、前記エアバッグは隔壁により上下方向で複数の気室に区画され、各気室にガスを供給するインフレータがそれぞれ備えられ、且つ乗員の体格を検出する体格センサーが備えられ、該体格センサーが、所定値以上の体格を検出した場合には、エアバッグの全ての気室を膨張させ、それ以外の場合には、少なくとも最下部の気室を含み且つ最上部の気室を除いた状態でエアバッグを膨張させることで、実現した。以下、本発明の実施形態を図面に基づいて説明する。   The purpose of providing a vehicle airbag device that can obtain an appropriate energy absorption performance according to the occupant's physique is to install the airbag in the instrument panel in a folded state and to inflate the airbag at the time of a collision. An airbag device for a vehicle that is deployed from the upper part of an instrument panel to a vehicle interior side, wherein the airbag is partitioned into a plurality of air chambers in a vertical direction by a partition wall, and each includes an inflator that supplies gas to each air chamber. And a physique sensor for detecting the physique of the occupant, and when the physique sensor detects a physique greater than or equal to a predetermined value, all the air chambers of the airbag are inflated, otherwise This was realized by inflating the airbag in a state including at least the lowermost air chamber and excluding the uppermost air chamber. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１〜図３は、本発明の第１実施例を示す図である。図１及び図２に示すように、自動車の助手席側におけるフロントウィンドウパネル１の下方にはインストルメントパネル２が位置している。このインストルメントパネル２の上部には、図示せぬリッドにて塞がれたケース３が設けられ、このケース３の中に、折りたたみ状態のエアバッグ４と、それを膨張させるガスを噴出するインフレータ５、６が収納されている。   1 to 3 are views showing a first embodiment of the present invention. As shown in FIG.1 and FIG.2, the instrument panel 2 is located under the front window panel 1 in the passenger seat side of a motor vehicle. An upper portion of the instrument panel 2 is provided with a case 3 closed by a lid (not shown). In the case 3, an airbag 4 in a folded state and an inflator for injecting gas for inflating the airbag 4 are provided. 5 and 6 are stored.

ケース３はインストルメントパネル２の上面形状に沿って前後方向に湾曲した形状をしている。ケース３の底面は角度が異なる平坦な二面により形成されており、それぞれにディスク型のインフレータ５、６が設置されている。   The case 3 has a shape curved in the front-rear direction along the shape of the upper surface of the instrument panel 2. The bottom surface of the case 3 is formed by two flat surfaces with different angles, and disc-type inflators 5 and 6 are respectively installed.

エアバッグ４には、ケース３の底面に相応するベース面７が形成されており、そのベース面７にそれぞれ２つのインフレータ５、６に相応する円形のガス導入口８、９が形成されている。このガス導入口８、９には、四方に切込み１０が形成され、ガス導入口８、９が拡大可能になっている。   A base surface 7 corresponding to the bottom surface of the case 3 is formed in the airbag 4, and circular gas inlets 8 and 9 corresponding to the two inflators 5 and 6 are formed on the base surface 7, respectively. . The gas inlets 8 and 9 are formed with cuts 10 in four directions so that the gas inlets 8 and 9 can be expanded.

エアバッグ４の内部には、ベース面７の前後中央からエアバッグ４の内面に沿って、エアバッグ４を上下に二分割する隔壁１１が縫製されている。隔壁１１の下端部には、スリット１２が形成されている。この隔壁１１によりエアバッグ４は上部気室Ａと下部気室Ｂに区画される。エアバッグ４が上部気室Ａと下部気室Ｂに二分割された簡単構造のため、エアバッグ４の製造が容易である。   Inside the airbag 4, a partition wall 11 is sewn along the inner surface of the airbag 4 from the front and rear center of the base surface 7 to divide the airbag 4 into two parts. A slit 12 is formed at the lower end of the partition wall 11. The airbag 4 is partitioned into an upper air chamber A and a lower air chamber B by the partition wall 11. Due to the simple structure in which the airbag 4 is divided into the upper air chamber A and the lower air chamber B, the manufacture of the air bag 4 is easy.

エアバッグ４の内部には、ベース面７を内側から固定するリテーナ１３が設置される。このリテーナ１３は、まずガス噴射口８、９の一方からエアバッグ４の上部気室Ａか下部気室Ｂに入れ、その後、半分をスリット１２から他方側に入れ、ベース面７の全体をカバーした状態で、ケース３の底面に押し付けて固定する。   A retainer 13 for fixing the base surface 7 from the inside is installed inside the airbag 4. The retainer 13 first enters the upper air chamber A or the lower air chamber B of the airbag 4 from one of the gas injection ports 8 and 9, and then inserts the half from the slit 12 to the other side to cover the entire base surface 7. In this state, it is pressed against the bottom surface of the case 3 and fixed.

乗員１４、１５が着座するシート１６には、体格センサーＳが設けられている。この体格センサーＳは、乗員１４、１５の体重から体格を検出する構造になっている。体格センサーＳは、インフレータ５、６を作動させる制御部１７に、検出した信号を出力するようになっている。   A physique sensor S is provided on the seat 16 on which the occupants 14 and 15 are seated. The physique sensor S has a structure for detecting the physique from the weights of the passengers 14 and 15. The physique sensor S outputs the detected signal to the control unit 17 that operates the inflators 5 and 6.

制御部１７では、体格センサーＳが所定値以上の大きな体格の乗員（例えば大人）１４を検出した場合に、両方のインフレータ５、６を作動させ、所定値に満たない小さな体格（例えば子供）１５を検出した場合に、下部気室Ｂに対応する後側のインフレータ６だけを作動させるようになっている。制御部１７には、図示せぬ衝突センサーからの信号も入力される。   In the control unit 17, when the physique sensor S detects an occupant (for example, an adult) 14 having a large physique greater than or equal to a predetermined value, both inflators 5 and 6 are actuated and a small physique (for example, a child) 15 that does not satisfy the predetermined value When this is detected, only the rear inflator 6 corresponding to the lower air chamber B is operated. A signal from a collision sensor (not shown) is also input to the control unit 17.

次に作用を説明する。体格の大きな乗員１４が着座している状態で、車両が衝突を起こすと（図１参照）、両方のインフレータ５、６が作動し、エアバッグ４の上部気室Ａ及び下部気室Ｂの両方が膨張して、インストルメントパネル２の上面部の図示せぬリッドを開き、車室内側に展開する。展開したエアバッグ４は、上方にも十分膨張するため、大きい体格の乗員１４の高い位置にある頭部１４ａと上下位置が対応し、適正なエネルギー吸収性能が得られ、乗員１４を確実に保護することができる。   Next, the operation will be described. If a vehicle collides with a passenger 14 having a large physique seated (see FIG. 1), both inflators 5 and 6 are activated and both the upper air chamber A and the lower air chamber B of the airbag 4 are operated. Expands, opens a lid (not shown) on the upper surface portion of the instrument panel 2, and expands to the vehicle interior side. Since the deployed airbag 4 is sufficiently inflated upward, the head 14a at the high position of the large occupant 14 corresponds to the vertical position so that proper energy absorption performance is obtained and the occupant 14 is reliably protected. can do.

また、体格の小さな乗員１５が着座している状態で、車両が衝突を起こすと（図２参照）、後方のインフレータ６のみが作動し、エアバッグ４の下部気室Ｂだけが膨張し、車室内側に展開する。展開したエアバッグ４は、下部気室Ｂだけの膨張のため、位置が低く、小さな体格の乗員１５の低い位置にある頭部１５ａと上下位置が対応し、適正なエネルギー吸収性能が得られ、乗員１５を確実に保護することができる。上方に不要なエアバッグ４′（図２の想像線図示）が存在しないため、体格の小さな乗員１５の頭部１５ａに対して上から押し付けるような荷重が加わらず、適正なエネルギー吸収性能が得られる。   Further, when the vehicle collides with the small occupant 15 seated (see FIG. 2), only the rear inflator 6 is activated, and only the lower air chamber B of the airbag 4 is inflated. Deploy indoors. Since the deployed airbag 4 is inflated only in the lower air chamber B, the position is low, the head 15a at the low position of the small occupant 15 corresponds to the vertical position, and appropriate energy absorption performance can be obtained, The occupant 15 can be reliably protected. Since there is no unnecessary airbag 4 ′ (shown in phantom line in FIG. 2), an appropriate energy absorption performance can be obtained without applying a load that presses against the head 15 a of the occupant 15 having a small physique from above. It is done.

図４は、本発明の第２実施例を示す図である。この実施例では、ケース１８を前後方向に沿うストレート形状にして、２つのインフレータ１９、２０を円柱状の一体構造にした。各インフレータ１９、２０の相反する端部には、ガス噴射孔１９ａ、２０ａが形成されている。そして、体格の大きい乗員の場合は、両方のインフレータ１９、２０を作動させ、体格の小さな乗員の場合は、下部気室に対応する方のインフレータ２０だけを作動させる。   FIG. 4 is a diagram showing a second embodiment of the present invention. In this embodiment, the case 18 has a straight shape along the front-rear direction, and the two inflators 19 and 20 have a cylindrical integrated structure. Gas injection holes 19a and 20a are formed at opposite ends of the inflators 19 and 20, respectively. In the case of an occupant with a large physique, both inflators 19 and 20 are operated, and in the case of an occupant with a small physique, only the inflator 20 corresponding to the lower air chamber is operated.

この実施例によれば、２つのインフレータ１９、２０が一体化されているため、インフレータ１９、２０のケース１８への設置作業が容易である。その他の構成及び作用効果は、第１実施例と同様である。   According to this embodiment, since the two inflators 19 and 20 are integrated, installation work of the inflators 19 and 20 on the case 18 is easy. Other configurations and operational effects are the same as those of the first embodiment.

図６〜図８は、本発明の第３実施例を示す図である。この実施例では、エアバッグ２１の隔壁２２が下側に凸の状態で湾曲している。従って、下部気室Ｂの車室内両側部分が、上部気室Ａの車幅方向両側に回り込んだ状態になる。   6 to 8 are views showing a third embodiment of the present invention. In this embodiment, the partition wall 22 of the airbag 21 is curved in a convex state downward. Accordingly, both side portions of the lower air chamber B in the vehicle interior wrap around the both sides of the upper air chamber A in the vehicle width direction.

そして、ケース２３の前方には、上部気室Ａに対応する１つのディスク型のインフレータ２４が設けられ、後方には下部気室Ｂに対応する２つのディスク型のインフレータ２５が設けられている。そして、膨張した時の上部気室Ａと下部気室Ｂの内圧は、下部気室Ｂの方が高くなるように設定されている。   In front of the case 23, one disk-type inflator 24 corresponding to the upper air chamber A is provided, and behind the case 23, two disk-type inflators 25 corresponding to the lower air chamber B are provided. And the internal pressure of the upper air chamber A and the lower air chamber B when it expand | swells is set so that the lower air chamber B may become higher.

この実施例のエアバッグ２１は、下部気室Ｂが上部気室Ａの車幅方向両側に回り込んでいるため、乗員の体格が小さく、下部気室Ｂだけを膨張させた場合には、図７に示すように、乗員の頭部１５ａを下部気室Ｂにより車幅方向両側から挟むように支えることができる。従って、車両が斜めに衝突して、乗員の頭部１５ａが斜め前方に倒れようとする場合も、頭部１５ａを下部気室Ｂによりエアバッグ２１の中央位置に保持して確実に保護することができる。   In the airbag 21 of this embodiment, since the lower air chamber B wraps around both sides of the upper air chamber A in the vehicle width direction, the occupant is small in size, and only the lower air chamber B is inflated. 7, the passenger's head 15a can be supported by the lower air chamber B so as to be sandwiched from both sides in the vehicle width direction. Therefore, even when the vehicle collides diagonally and the occupant's head 15a is about to fall obliquely forward, the head 15a is held at the center position of the airbag 21 by the lower air chamber B and reliably protected. Can do.

また、乗員の体格が大きく、上部気室Ａと下部気室Ｂの両方を膨張させる場合も、上部気室Ａの膨張圧力が下部気室Ｂよりも低く設定されているため、図８に示すように、乗員の頭部１４ａを下部気室Ｂにより車幅方向両側から挟むように支えることができる。従って、体格が小さい乗員の場合と同様に、車両が斜めに衝突して、乗員の頭部１４ａが斜め前方に倒れようとする場合も、頭部１４ａを下部気室Ｂによりエアバッグ２１の中央位置に保持して確実に保護することができる。その他の構成及び作用効果は、第１実施例と同様である。   Further, when the occupant has a large physique and both the upper air chamber A and the lower air chamber B are inflated, the expansion pressure of the upper air chamber A is set lower than that of the lower air chamber B. Thus, the passenger | crew's head 14a can be supported by the lower air chamber B so that it may be pinched | interposed from the vehicle width direction both sides. Accordingly, as in the case of an occupant having a small physique, even when the vehicle collides obliquely and the occupant's head 14a is about to fall obliquely forward, the head 14a is placed in the center of the airbag 21 by the lower air chamber B. It can be securely protected by being held in position. Other configurations and operational effects are the same as those of the first embodiment.

以上の実施例では、エアバッグ４、２１を１枚の隔壁１１、２２により上部気室Ａと下部気室Ｂとに２分割する例を示したが、２枚以上の隔壁により、３分割以上にしても良い。エアバッグを３分割以上する場合は、体格の小さい乗員の場合に、少なくとも最下部の気室を含み且つ最上部の気室を除いた状態でエアバッグを膨張させる。隔壁はエアバッグを厳密に密閉状態で区画する必要はなく、隣接する気室間で多少のガスの移動はあっても良い。   In the above embodiment, the airbags 4 and 21 are divided into the upper air chamber A and the lower air chamber B by the single partition walls 11 and 22, but are divided into three or more by the two or more partition walls. Anyway. When the airbag is divided into three or more parts, in the case of an occupant having a small physique, the airbag is inflated in a state including at least the lowest air chamber and excluding the uppermost air chamber. The partition wall does not need to partition the airbag in a strictly sealed state, and there may be some gas movement between adjacent air chambers.

本発明の第１実施例に係るエアバッグの全ての気室を膨張させた状態を示す断面図。Sectional drawing which shows the state which expanded all the air chambers of the airbag which concerns on 1st Example of this invention. 図１のエアバッグの下部気室だけを膨張させた状態を示す断面図。Sectional drawing which shows the state which expanded only the lower air chamber of the airbag of FIG. 図１及び図２に係るエアバッグのケースに対する結合部を示す分解斜視図。The disassembled perspective view which shows the coupling | bond part with respect to the case of the airbag which concerns on FIG.1 and FIG.2. 本発明の第２実施例に係るインフレータを示す斜視図。The perspective view which shows the inflator which concerns on 2nd Example of this invention. 本発明の第３実施例に係るインフレータを示す斜視図。The perspective view which shows the inflator which concerns on 3rd Example of this invention. 図５のインフレータを用いたエアバッグの膨張状態を示す後面図。The rear view which shows the inflated state of the airbag using the inflator of FIG. 図５に係るインフレータを用いてエアバッグの下部気室だけを膨張させた状態を示す図８相当の断面図。Sectional drawing equivalent to FIG. 8 which shows the state which expanded only the lower air chamber of the airbag using the inflator which concerns on FIG. 図６中矢示ＳＡ−ＳＡ線に沿うエアバッグの断面図。Sectional drawing of the airbag which follows the arrow SA-SA line in FIG.

符号の説明Explanation of symbols

２ インストルメントパネル
４、２１ エアバッグ
５、６、１９、２０、２４、２５ インフレータ
１１、２２ 隔壁
１４ 乗員（体格大きい）
１５ 乗員（体格小さい）
Ａ 上部気室
Ｂ 下部気室
Ｓ 体格センサー 2 Instrument panel 4, 21 Air bag 5, 6, 19, 20, 24, 25 Inflator 11, 22 Bulkhead 14 Crew (large body)
15 Crew (physique is small)
A upper air chamber B lower air chamber S physique sensor

Claims (5)

エアバッグを折り畳み状態でインストルメントパネルの内部に設置すると共に、衝突時にエアバッグを膨張させてインストルメントパネルの上部から車室内側へ展開させる車両用エアバッグ装置であって、
前記エアバッグは、隔壁により上下方向で複数の気室に区画され、各気室にガスを供給するインフレータがそれぞれ備えられ、且つ乗員の体格を検出する体格センサーが備えられ、
該体格センサーが、所定値以上の体格を検出した場合には、エアバッグの全ての気室を膨張させ、それ以外の場合には、少なくとも最下部の気室を含み且つ最上部の気室を除いた状態でエアバッグを膨張させることを特徴とする車両用エアバッグ装置。 A vehicle airbag device that installs an airbag in an instrument panel in a folded state and expands the airbag from the top of the instrument panel to the vehicle interior side during a collision,
The airbag is partitioned into a plurality of air chambers in the vertical direction by partition walls, each of which includes an inflator that supplies gas to each air chamber, and a physique sensor that detects the physique of the occupant,
When the physique sensor detects a physique greater than or equal to a predetermined value, all the air chambers of the airbag are inflated; otherwise, at least the lowermost air chamber and the uppermost air chamber are included. A vehicle airbag device characterized by inflating an airbag in a removed state. 請求項１記載の車両用エアバッグ装置であって、
エアバッグが一枚の隔壁により、上部気室と下部気室に区画されていることを特徴とする車両用エアバッグ装置。 The vehicle airbag device according to claim 1,
An air bag apparatus for a vehicle, wherein the air bag is divided into an upper air chamber and a lower air chamber by a single partition wall. 請求項２記載の車両用エアバッグ装置であって、
２つのインフレータが一体化されていることを特徴とする車両用エアバッグ装置。 The vehicle airbag device according to claim 2,
A vehicle airbag device, wherein two inflators are integrated. 請求項２又は請求項３記載の車両用エアバッグ装置であって、
下部気室が上部気室の車幅方向両側に回り込んだ状態で膨張することを特徴とする車両用エアバッグ装置。 The vehicle airbag device according to claim 2 or claim 3,
A vehicular airbag apparatus, wherein the lower air chamber is inflated in a state where it wraps around both sides of the upper air chamber in the vehicle width direction. 請求項４記載の車両用エアバッグ装置であって、
上部気室の膨張圧力を下部気室よりも低く設定したことを特徴とする車両用エアバッグ装置。
The vehicle airbag device according to claim 4,
An air bag apparatus for a vehicle characterized in that an inflation pressure of an upper air chamber is set lower than that of a lower air chamber.
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WO2008124499A1 (en) * 2007-04-03 2008-10-16 Delphi Technologies, Inc. Apparatus and method for controlling an inflatable cushion
CN103043024A (en) * 2011-10-11 2013-04-17 铃木株式会社 Front seat passenger airbag
JP2016020115A (en) * 2014-07-11 2016-02-04 トヨタ自動車株式会社 Air bag device for front passenger seat
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