JP2003320919A - Automotive airbag device for head protection - Google Patents
Automotive airbag device for head protectionInfo
- Publication number
- JP2003320919A JP2003320919A JP2002132992A JP2002132992A JP2003320919A JP 2003320919 A JP2003320919 A JP 2003320919A JP 2002132992 A JP2002132992 A JP 2002132992A JP 2002132992 A JP2002132992 A JP 2002132992A JP 2003320919 A JP2003320919 A JP 2003320919A
- Authority
- JP
- Japan
- Prior art keywords
- occupant
- airbag
- head
- side wall
- curtain
- 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
Links
Landscapes
- Automotive Seat Belt Assembly (AREA)
- Air Bags (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、自動車の頭部保
護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 protecting a head of an automobile.
【０００２】[0002]
【従来の技術】自動車の車体における乗員頭部よりも高
い位置には、サイドルーフレールが配され、このサイド
ルーフレールに沿って、ロールオーバー時における乗員
頭部保護用のエアバッグ装置を設けたものがある（類似
技術として、特開２０００−１２７８８５号公報参
照）。2. Description of the Related Art A side roof rail is arranged at a position higher than an occupant's head in a vehicle body, and an airbag device is provided along the side roof rail for protecting an occupant's head during rollover. (See Japanese Patent Laid-Open No. 2000-127885 for a similar technique).
【０００３】この種のエアバッグ装置は、上端部が前記
サイドルーフレールに固定された状態で、全体が上下方
向で折り畳まれて収納されていると共に、前席乗員と後
席乗員とにそれぞれ対応する２つの膨張室があって、イ
ンフレータからの噴出ガスによりサイドルーフレールか
ら、乗員頭部と室内側壁との間に向けて膨張しながらカ
ーテン状に降りてくる構造である。インフレータのガス
は、一般に後席用の膨張室内に噴射され、その後、連通
部を介して前席用の膨張室に導かれる（この逆のタイプ
もある）。This type of airbag apparatus is folded and housed in the vertical direction with the upper end fixed to the side roof rail, and accommodates the front passenger and the rear passenger respectively. There are two expansion chambers, and the structure is such that the gas ejected from the inflator descends like a curtain from the side roof rails while expanding toward the space between the occupant's head and the indoor side wall. The gas of the inflator is generally injected into the expansion chamber for the rear seat and then guided to the expansion chamber for the front seat through the communication portion (there is also a reverse type).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の技術にあっては、カーテンエアバッグが膨張
する時に、乗員が自動車の室内側壁に近寄っていること
などにより、乗員の頭部と室内側壁、例えばドアガラ
ス、ピラートリムとの間隙が小さくなっている場合に
は、カーテンエアバッグがスムーズに展開しづらくなる
おそれがある。また、カーテンエアバッグ展開時は、ロ
ールオーバーセンサーが自動車のロール角やロール角速
度を検知しているため、カーテンエアバッグの展開タイ
ミングのチューニング調整に多くの時間を必要とし、開
発工数が多大になるおそれがある。However, according to such a conventional technique, when the curtain airbag is inflated, the occupant approaches the interior side wall of the vehicle, and the occupant's head and the interior are If the gap between the side wall, for example, the door glass or the pillar trim is small, the curtain airbag may be difficult to deploy smoothly. Further, when the curtain airbag is deployed, the rollover sensor detects the roll angle and roll angular velocity of the automobile, which requires a lot of time for tuning and adjusting the deployment timing of the curtain airbag, resulting in a large number of development man-hours. There is a risk.
【０００５】この発明は、このような従来の技術に着目
してなされたものであり、カーテンエアバッグ展開前に
乗員を自動車の室内側壁から離して、スムーズにカーテ
ンエアバッグが展開可能なる自動車の頭部保護用エアバ
ッグ装置を提供するものである。The present invention was made by paying attention to such a conventional technique, and an automobile in which the occupant can be smoothly deployed by separating the occupant from the vehicle interior side wall before deploying the curtain airbag. A head protection airbag device is provided.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の発明
は、上端部が乗員頭部よりも高い位置にある車体上部に
固定された状態で収納されてなると共に、作動展開時
に、インフレータのガスが導かれることにより、乗員頭
部と室内側壁との間へ向けてカーテン状に展開させるカ
ーテンエアバッグを備えた自動車の頭部保護用エアバッ
グ装置であって、前記カーテンエアバッグが展開する所
定時間前に乗員を室内側壁より遠ざける乗員拘束手段を
設けてなる。According to a first aspect of the present invention, the upper end of the inflator is fixedly housed in the upper part of the vehicle body at a position higher than the occupant's head, and the inflator of the inflator is unfolded during operation and deployment. An air bag device for protecting a head of an automobile, comprising a curtain air bag that is expanded in a curtain shape between an occupant's head and a side wall of a passenger compartment by guiding gas, and the curtain air bag is expanded. An occupant restraint means is provided for keeping the occupant away from the indoor side wall a predetermined time before.
【０００７】請求項１に記載の発明の乗員拘束手段によ
れば、前記カーテンエアバッグが展開する所定時間前に
乗員を室内側壁より遠ざけるので、室内側壁よりカーテ
ンエアバッグが降りてくるのにスムーズな隙間が形成さ
れ、スムーズにカーテンエアバッグが展開可能である。
つまり、保護すべき乗員頭部と自動車室内側壁との間に
カーテンエアバッグが入り込むことが可能であるので、
乗員の二次衝突などの衝撃力を吸収できる。また、カー
テンエアバッグの展開タイミングのチューニング調整が
必要ないので、開発工数が少なくて済む。According to the occupant restraint means of the invention described in claim 1, since the occupant is moved away from the indoor side wall a predetermined time before the curtain airbag is deployed, it is smooth when the curtain airbag descends from the indoor side wall. A wide gap is formed, and the curtain airbag can be deployed smoothly.
In other words, the curtain airbag can enter between the passenger's head to be protected and the side wall of the vehicle interior,
It is possible to absorb the impact force such as a secondary collision of an occupant. In addition, since it is not necessary to tune and adjust the deployment timing of the curtain airbag, the number of development steps can be reduced.
【０００８】請求項２に記載の発明は、乗員拘束手段
は、乗員の胴部を室内側壁から離す方向に付勢可能なる
サイドエアバッグよりなり、該サイドエアバッグの作動
展開後、所定の時間経過後に前記カーテンエアバッグが
作動展開する。According to a second aspect of the present invention, the occupant restraint means comprises a side airbag capable of urging the occupant's torso in a direction away from the side wall of the passenger compartment. After a lapse of time, the curtain airbag is activated and deployed.
【０００９】請求項２に記載の発明の乗員拘束手段によ
れば、乗員の胴部を室内側壁から離す方向に付勢可能な
るサイドエアバッグよりなるので、乗員と室内側壁との
間に隙間が形成され、そのサイドエアバッグの作動展開
後、所定の時間経過後にカーテンエアバッグが作動展開
可能なるので、スムーズな展開が可能である。According to the occupant restraining means of the second aspect of the present invention, the occupant restraint means comprises the side airbag which can be urged in the direction in which the torso of the occupant is separated from the indoor side wall, so that there is a gap between the occupant and the indoor side wall. Since the curtain airbag is formed and can be operated and deployed after a predetermined time has passed after the side airbag is operated and deployed, smooth deployment is possible.
【００１０】請求項３に記載の発明は、前記サイドエア
バッグは、ドアに設置されたドアバッグである。According to a third aspect of the present invention, the side airbag is a door bag installed on a door.
【００１１】請求項３に記載の発明によれば、乗員の胴
部を横方向から押すことで、室内側壁と乗員の頭部との
間の隙間形成が少ないガス量で可能である。According to the third aspect of the present invention, by pushing the occupant's torso from the lateral direction, it is possible to form a gap between the indoor side wall and the occupant's head with a small amount of gas.
【００１２】請求項４に記載の発明は、乗員拘束手段
は、乗員の胴部を室内側壁から離す方向に引き込み可能
なるプリテンションベルトよりなり、該プリテンション
ベルトの引き込み作動後、所定の時間経過後にカーテン
エアバッグが膨張展開可能なる。According to a fourth aspect of the present invention, the occupant restraint means comprises a pretension belt which can be retracted in a direction in which the torso of the occupant is separated from the indoor side wall, and a predetermined time has elapsed after the pretension belt is retracted. Later, the curtain airbag can be inflated and deployed.
【００１３】請求項４に記載の発明の乗員拘束手段によ
れば、乗員の胴部を室内側壁から離す方向に引き込み可
能なるプリテンションベルトよりなるので、乗員と室内
側壁との間に隙間が形成され、そのプリテンションベル
トの引き込み作動後、所定の時間経過後にカーテンエア
バッグが膨張展開可能なるので、スムーズな展開が可能
である。According to the occupant restraint means of the invention as defined in claim 4, since the pretension belt is capable of retracting the occupant's torso in the direction separating from the passenger compartment side wall, a gap is formed between the passenger and the passenger compartment side wall. Since the curtain airbag can be inflated and deployed after a predetermined time has passed after the pretension belt retracting operation, smooth deployment is possible.
【００１４】[0014]
【発明の実施の形態】以下、この発明の好適な一実施形
態を図１乃至図５に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to FIGS.
【００１５】符号１は、上端部１ａが乗員Ｍの頭部Ｈよ
りも高い位置にあるサイドルーフレール（車体）１０の
上部に固定された状態で収納されてなると共に、作動展
開時に、図示しないインフレータのガスが導かれること
により、乗員Ｍの頭部Ｈと室内側側壁との間へ向けてカ
ーテン状に展開させるカーテン状のエアバッグ（以下単
にカーテンエアバッグという。）である。Reference numeral 1 denotes an inflator (not shown) which is accommodated in a state in which the upper end portion 1a is fixed to an upper portion of a side roof rail (vehicle body) 10 located at a position higher than the head H of the occupant M, and at the time of operation and deployment. Is a curtain-shaped airbag (hereinafter simply referred to as a curtain airbag) that is expanded in a curtain shape between the head H of the occupant M and the indoor side wall by being guided.
【００１６】符号３はドアで、室内側壁を、図示しない
ピラーと共に形成している。該ドア３の室内側には、乗
員拘束手段５が配設されている。該乗員拘束手段５は、
座席４に着座した乗員Ｍの胴部Ｍａを室内側壁であるド
ア３から離す方向に付勢可能なるドアバッグであるサイ
ドエアバッグよりなる。該サイドエアバッグ５の作動展
開後、所定の時間経過（例えば１００ミリ秒）後に、カ
ーテンエアバッグ１が作動展開するようにタイマー６に
よりセットされている。Reference numeral 3 is a door, which forms an indoor side wall together with a pillar (not shown). An occupant restraint means 5 is arranged on the indoor side of the door 3. The occupant restraint means 5 is
It is a side airbag that is a door bag that can bias the torso Ma of the occupant M seated in the seat 4 in a direction away from the door 3 that is the indoor side wall. The timer 6 is set so that the curtain airbag 1 is activated and deployed after a predetermined time has passed (for example, 100 milliseconds) after the side airbag 5 is activated and deployed.
【００１７】次に、このカーテンエアバッグ１の展開ま
での順序を説明する。自動車２に搭載されてなるセンサ
ー７がＯＮになると、乗員拘束装置であるサイドエアバ
ッグ５のインフレータに信号が送られ、インフレータが
作動してガスがガス導入通路に噴射する。ガス導入通路
内に噴射されたガスは、サイドエアバッグ５を膨張させ
て、図２及び図３に実線で示したドア３側に近寄ってい
る乗員Ｍの胴部Ｍａと頭部Ｈとを図３の破線及び矢印で
示すようにドア３から離れる方向に付勢する。該サイド
エアバッグ５は、乗員Ｍの胴部Ｍａを横方向から押すこ
とで、ドア３と乗員Ｍの頭部Ｈとの間の隙間９形成が少
ないガス量で可能である。Next, the order of deployment of the curtain airbag 1 will be described. When the sensor 7 mounted on the automobile 2 is turned on, a signal is sent to the inflator of the side airbag 5, which is an occupant restraint device, and the inflator operates to inject gas into the gas introduction passage. The gas injected into the gas introduction passage inflates the side airbag 5 to show the torso Ma and the head H of the occupant M approaching the door 3 side shown by the solid lines in FIGS. 2 and 3. It is urged in the direction away from the door 3 as indicated by the broken line 3 and the arrow. The side airbag 5 is capable of forming a gap 9 between the door 3 and the head H of the occupant M with a small amount of gas by pushing the body Ma of the occupant M from the lateral direction.
【００１８】前記サイドエアバッグ５のインフレータに
信号が送られると同時にタイマー６にも信号が送られ、
所定時間経過（例えば１００ミリ秒）後に、カーテンエ
アバッグ１のインフレータがＯＮになり、カーテンエア
バッグ１のインフレータがガスをカーテンエアバッグ１
のガス導入通路に噴射する。ガス導入通路内に噴射され
たガスは、カーテンエアバッグ１を作動展開させて、図
４に示したようにドアガラス８と乗員Ｍの頭部Ｈとの隙
間９にカーテンエアバッグ１がスムーズに下降し、乗員
Ｍの頭部Ｈを保護することができる。A signal is sent to the inflator of the side airbag 5 and at the same time a signal is sent to the timer 6,
After a lapse of a predetermined time (for example, 100 milliseconds), the inflator of the curtain airbag 1 is turned on, and the inflator of the curtain airbag 1 supplies gas to the curtain airbag 1.
Is injected into the gas introduction passage. The gas injected into the gas introduction passage operates and deploys the curtain airbag 1, and the curtain airbag 1 smoothly moves into the gap 9 between the door glass 8 and the head H of the occupant M as shown in FIG. It is possible to descend and protect the head H of the occupant M.
【００１９】この実施形態によれば、乗員拘束装置とし
てドアバッグであるサイドエアバッグ５を用いて、乗員
Ｍの胴部Ｍａ及び頭部Ｈを押す方向での説明のみをした
が、これに限定されるものでなく、乗員Ｍの胴部Ｍａを
ドア３から離す方向に引き込み可能なるプリテンション
ベルトよりなるものでも良い。該プリテンションベルト
による場合は、乗員Ｍの胴部Ｍａの引き込み作動後、所
定の時間経過後にカーテンエアバッグ１が膨張展開可能
なるものであって、乗員Ｍの胴部Ｍａ及び頭部Ｈとドア
３との間に隙間９が形成され、スムーズな展開が可能で
ある。According to this embodiment, the side airbag 5, which is a door bag, is used as the occupant restraint device, and only the explanation is given in the direction of pushing the torso Ma and the head H of the occupant M. However, the present invention is not limited to this. Instead of the pretension belt, the pretension belt that can retract the trunk Ma of the occupant M in the direction away from the door 3 may be used. In the case of using the pretension belt, the curtain airbag 1 can be inflated and deployed after a predetermined time has elapsed after the retracting operation of the body Ma of the occupant M, and the body Ma and the head H of the occupant M and the door. A gap 9 is formed between the groove 3 and the groove 3, and smooth expansion is possible.
【図１】この発明の一実施形態に係るカーテンエアバッ
グが下向きに展開した状態を示す車室内正面図。FIG. 1 is a front view of a vehicle interior showing a state in which a curtain airbag according to an embodiment of the present invention is deployed downward.
【図２】図１のカーテンエアバッグ展開前の正面図。FIG. 2 is a front view of the curtain airbag of FIG. 1 before deployment.
【図３】図２の状態で乗員拘束装置が作動して乗員を室
内側壁から離す方向に押した作動説明図。FIG. 3 is an operation explanatory view in which the occupant restraint device operates in the state of FIG. 2 and pushes the occupant in a direction of separating from the indoor side wall.
【図４】図３の破線の状態の乗員と室内側壁との隙間に
カーテンエアバッグが膨張した状態を示す正面図。FIG. 4 is a front view showing a state in which the curtain airbag is inflated in a gap between an occupant and a side wall of a passenger compartment in a state of a broken line in FIG.
【図５】カーテンエアバッグ展開までのロジックを説明
したブロック図。FIG. 5 is a block diagram illustrating the logic until the curtain airbag is deployed.
１ カーテンエアバッグ ２ 自動車 ３ 車室側壁（ドア） ５ サイドエアバッグ（乗員拘束装置） ６ タイマー ９ 隙間 Ｍ 乗員 Ｍａ 乗員の胴部 Ｈ 乗員の頭部 ＵＰ 上側 ＬＷＲ 下側 1 curtain airbag 2 cars 3 Cabin side wall (door) 5 Side airbag (occupant restraint system) 6 timer 9 gap M crew Ma Crew's torso H crew head UP upper side LWR lower side
Claims (4)
車体上部に固定された状態で収納されてなると共に、作
動展開時に、インフレータのガスが導かれることによ
り、乗員頭部と室内側壁との間へ向けてカーテン状に展
開させるカーテンエアバッグを備えた自動車の頭部保護
用エアバッグ装置であって、 前記カーテンエアバッグが展開する所定時間前に乗員を
室内側壁より遠ざける乗員拘束手段を設けてなることを
特徴とする自動車の頭部保護用エアバッグ装置。1. An occupant's head and a side wall of the passenger compartment, wherein the upper end of the occupant is stored in a state of being fixed to an upper part of the vehicle body at a position higher than the occupant's head, and the gas of an inflator is guided during operation and deployment. An airbag device for protecting a head of an automobile, which is provided with a curtain airbag that is deployed in a curtain shape toward a space between the vehicle and the vehicle, the occupant restraining means for keeping an occupant away from a side wall of the passenger compartment a predetermined time before the curtain airbag is deployed. An airbag device for protecting the head of an automobile, characterized by comprising:
アバッグ装置であって、 乗員拘束手段は、乗員の胴部を室内側壁から離す方向に
付勢可能なるサイドエアバッグよりなり、 該サイドエアバッグの作動展開後、所定の時間経過後に
前記カーテンエアバッグが作動展開することを特徴とす
る自動車の頭部保護用エアバッグ装置。2. The airbag device for protecting a head of an automobile according to claim 1, wherein the occupant restraint means is a side airbag which can be urged in a direction of separating the occupant's torso from the indoor side wall. An airbag device for protecting a head of an automobile, wherein the curtain airbag is activated and deployed after a predetermined time has elapsed after the side airbag is activated and deployed.
アバッグ装置であって、 前記サイドエアバッグは、ドアに設置されたドアバッグ
であることを特徴とする自動車の頭部保護用エアバッグ
装置。3. The automobile head protection airbag device according to claim 2, wherein the side airbag is a door bag installed on a door. Airbag device.
アバッグ装置であって、 乗員拘束手段は、乗員の胴部を室内側壁から離す方向に
引き込み可能なるプリテンションベルトよりなり、 該プリテンションベルトの引き込み作動後、所定の時間
経過後にカーテンエアバッグが膨張展開可能なることを
特徴とする自動車の頭部保護用エアバッグ装置。4. The airbag apparatus for protecting a head of an automobile according to claim 1, wherein the occupant restraining means comprises a pre-tension belt which is retractable in a direction in which a torso of the occupant is separated from a side wall of the passenger compartment. An airbag device for protecting a head of an automobile, wherein the curtain airbag can be inflated and deployed after a predetermined time has passed after the pretension belt is retracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002132992A JP2003320919A (en) | 2002-05-08 | 2002-05-08 | Automotive airbag device for head protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002132992A JP2003320919A (en) | 2002-05-08 | 2002-05-08 | Automotive airbag device for head protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003320919A true JP2003320919A (en) | 2003-11-11 |
Family
ID=29544697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002132992A Pending JP2003320919A (en) | 2002-05-08 | 2002-05-08 | Automotive airbag device for head protection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003320919A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007050847A (en) * | 2005-08-19 | 2007-03-01 | Toyota Motor Corp | Side collision airbag device |
| US7447328B2 (en) | 2003-08-19 | 2008-11-04 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker |
| WO2012153560A1 (en) * | 2011-05-11 | 2012-11-15 | 日産自動車株式会社 | Occupant restraint system and occupant restraint method |
| CN104024059A (en) * | 2011-12-29 | 2014-09-03 | 丰田自动车株式会社 | Airbag system for automobile |
| JP2016060464A (en) * | 2014-09-22 | 2016-04-25 | 富士重工業株式会社 | Passenger protection apparatus |
| JP2017170990A (en) * | 2016-03-22 | 2017-09-28 | 株式会社Ｓｕｂａｒｕ | Passenger protection structure at side collision of vehicle |
-
2002
- 2002-05-08 JP JP2002132992A patent/JP2003320919A/en active Pending
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|---|---|---|---|---|
| US7447328B2 (en) | 2003-08-19 | 2008-11-04 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker |
| JP2007050847A (en) * | 2005-08-19 | 2007-03-01 | Toyota Motor Corp | Side collision airbag device |
| WO2012153560A1 (en) * | 2011-05-11 | 2012-11-15 | 日産自動車株式会社 | Occupant restraint system and occupant restraint method |
| US8820462B2 (en) | 2011-05-11 | 2014-09-02 | Nissan Motor Co., Ltd. | Occupant restraint system and occupant restraint method |
| JP5626462B2 (en) * | 2011-05-11 | 2014-11-19 | 日産自動車株式会社 | Crew restraint system |
| CN104024059A (en) * | 2011-12-29 | 2014-09-03 | 丰田自动车株式会社 | Airbag system for automobile |
| JP2016060464A (en) * | 2014-09-22 | 2016-04-25 | 富士重工業株式会社 | Passenger protection apparatus |
| JP2017170990A (en) * | 2016-03-22 | 2017-09-28 | 株式会社Ｓｕｂａｒｕ | Passenger protection structure at side collision of vehicle |
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