JPH06262999A - Air bag device - Google Patents

Air bag device

Info

Publication number
JPH06262999A
JPH06262999A JP5051169A JP5116993A JPH06262999A JP H06262999 A JPH06262999 A JP H06262999A JP 5051169 A JP5051169 A JP 5051169A JP 5116993 A JP5116993 A JP 5116993A JP H06262999 A JPH06262999 A JP H06262999A
Authority
JP
Japan
Prior art keywords
bag
instrument panel
retainer plate
inflator
passenger
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
JP5051169A
Other languages
Japanese (ja)
Inventor
Minoru Mitsutano
稔 満多野
Kiyoshi Mamiya
清 間宮
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP5051169A priority Critical patent/JPH06262999A/en
Publication of JPH06262999A publication Critical patent/JPH06262999A/en
Pending legal-status Critical Current

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  • Air Bags (AREA)

Abstract

PURPOSE:To facilitate layout of an air bag unit to inside an instrument panel and enable it to also function as a knee protector. CONSTITUTION:A retainer plate 6 is provided for accommodating the inflator 4 and bag 5 of an air bag unit 1, and only the rear side wall of this retainer plate 6 is formed as a flexible part 9, and the instrument panel 2 rear surface 2b on the passenger side at the assistant driver's seat is coupled with this flexible part 9 by a coupling member 10 which is deformable compressively in the direction fore and aft so that a knee protector 11 is formed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は自動車のインストルメン
トパネルの助手席側に配置されるエアバッグ装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag device arranged on the passenger side of an instrument panel of an automobile.

【0002】[0002]

【従来の技術】従来、助手席用のエアバッグ装置として
は、例えば1990年6月19日本田技研工業(株)発
行 HONDA SRS AIRBAG SYSTEM
for FRONT PASSENGER に示され
ているように、インフレータおよびバッグを収納した筒
状のリテーナプレートに、軽量化のため多数個の穿孔を
設けたものが知られている。
2. Description of the Related Art Conventionally, as an airbag device for a passenger seat, for example, June 19, 1990, HONDA SRS AIRBAG SYSTEM, issued by Nippon Denki Giken Co., Ltd.
As shown in for FRONT PASSENGER, it is known that a tubular retainer plate accommodating an inflator and a bag is provided with a large number of perforations for weight reduction.

【0003】[0003]

【発明が解決しようとする課題】リテーナプレートに多
数個の穿孔を設けてあるため、バッグの膨張時にこのバ
ッグの膨張圧でリテーナプレートが前後方向および車幅
方向に拡径変形する。
Since the retainer plate is provided with a number of perforations, the retainer plate is expanded and deformed in the front-rear direction and the vehicle width direction by the inflation pressure of the bag when the bag is inflated.

【0004】このため、エアバッグユニットのインスト
ルメントパネル内部への組付け時には、このエアバッグ
ユニットの前後方向および車幅方向に、リテーナプレー
トの拡径化を見込んで所要のクリアランスを設定する必
要があってレイアウトに支障を来してしまう。
Therefore, when assembling the airbag unit inside the instrument panel, it is necessary to set a required clearance in the front-rear direction and the vehicle width direction of the airbag unit in consideration of the diameter expansion of the retainer plate. This will hinder the layout.

【0005】そこで、本発明はエアバッグユニットのバ
ッグ膨張に伴うリテーナプレートの変形を一方向に限定
して、リテーナプレートの拡径化に起因するレイアウト
の困難性を解消できると共に、該リテーナプレートの変
形作動を有効利用して、助手席乗員の膝部を保護するこ
ともできるエアバッグ装置を提供するものである。
Therefore, according to the present invention, the deformation of the retainer plate due to the inflation of the airbag unit is limited to one direction, so that the layout difficulty due to the expansion of the diameter of the retainer plate can be eliminated and the retainer plate (EN) An airbag device capable of effectively utilizing a deforming operation to protect the knee portion of a passenger in a passenger seat.

【0006】[0006]

【課題を解決するための手段】インストルメントパネル
の助手席側の上面部に形成した開口部に臨んで、該イン
ストルメントパネルの内側の車体側部材に装着されたイ
ンフレータと、インフレータを囲繞してその周縁に止着
されて折畳み収納されたバッグと、インフレータおよび
バッグを収納する筒状のリテーナプレートと、前記開口
部を覆うデイプロイメントドアとを有するエアバッグ装
置において、前記リテーナプレートの後壁部のみをバッ
グの膨張圧で後方へ変形可能な可撓部として形成すると
共に、インストルメントパネルの助手席側の後面部を該
可撓部に、前後方向に圧縮変形可能な連結部材で取付け
てニープロテクタを構成している。
[Means for Solving the Problems] An inflator mounted on a vehicle body side member inside the instrument panel and surrounding the inflator, facing an opening formed in the upper surface of the instrument panel on the passenger side. An airbag device having a bag which is fastened to the periphery thereof and is folded and stored, a tubular retainer plate which stores the inflator and the bag, and a deployment door which covers the opening, wherein a rear wall of the retainer plate. Only the part is formed as a flexible part that can be deformed rearward by the inflation pressure of the bag, and the rear surface part of the instrument panel on the passenger seat side is attached to the flexible part by a connecting member that can be compressed and deformed in the front-rear direction. It constitutes the knee protector.

【0007】[0007]

【作用】車両の衝突時にインフレータの作動によりバッ
グが膨張すると、この膨張圧でデイプロイメントドアが
押し開かれて、バッグが車室後方へ向けて展開すると同
時に、該バッグの膨張圧でリテーナプレート後側壁の可
撓部が後方へ変形してせり出す。
When the bag is inflated by the operation of the inflator when the vehicle collides, the inflation pressure pushes the deployment door open, and the bag is deployed toward the rear of the vehicle compartment. At the same time, the inflation pressure of the bag causes the retainer plate to expand. The flexible portion of the rear side wall is deformed rearward and sticks out.

【0008】これにより、ニープロテクタが可撓部と共
に車室後方へ移動して圧縮変形ストローク量を拡大する
と共に、助手席乗員の膝部との間の空間を狭める。
As a result, the knee protector moves to the rear of the vehicle compartment together with the flexible portion to increase the amount of compression deformation stroke and narrow the space between the knee portion of the passenger and the passenger.

【0009】助手席乗員は前方へ慣性移動するが、上半
身が膨張展開したバッグで柔軟に受け止められて拘束,
保護される一方、膝部がニープロテクタを構成するイン
ストルメントパネルの後面部で受け止められて、連結部
材および可撓部が前方へ圧縮変形することにより衝撃が
緩和され、膝部を確実に保護することができる。
The passenger in the passenger seat moves inertially forward, but is restrained by being flexibly received by the bag in which the upper half of the body is inflated and deployed.
While being protected, the knee is received by the rear surface of the instrument panel that constitutes the knee protector, and the connecting member and the flexible portion are compressed and deformed forward to reduce the impact, thereby reliably protecting the knee. be able to.

【0010】[0010]

【実施例】以下、本発明の実施例を図面と共に詳述す
る。
Embodiments of the present invention will now be described in detail with reference to the drawings.

【0011】図1〜3において、1はインストルメント
パネル2の助手席側の内部に、該インストルメントパネ
ル2の上面部2aに形成した開口部3に臨んで配置した
エアバッグユニットで、インフレータ4,バッグ5,こ
れらインフレータ4とバッグ5とを収納する略方形筒状
のリテーナプレート6,およびデイプロイメントドア7
とから大略構成されていて、インストルメントパネル2
内部のステアリングメンバ8に取付けられている。
1 to 3, reference numeral 1 denotes an air bag unit which is arranged inside the instrument panel 2 on the passenger side so as to face an opening 3 formed in an upper surface 2a of the instrument panel 2, and which is an inflator 4 , Bag 5, substantially rectangular tubular retainer plate 6 for accommodating the inflator 4 and the bag 5, and the deployment door 7
Instrument panel 2
It is attached to the steering member 8 inside.

【0012】開口部3は本実施例ではインストルメント
パネル2の上面部2aに、該インストルメントパネル2
の助手席側の後面部2bの上縁との境目部分に形成し
て、該後面部2bの上縁が開口部3の後縁を構成するよ
うにしている。
In this embodiment, the opening 3 is formed on the upper surface 2a of the instrument panel 2 and
Is formed at the boundary with the upper edge of the rear surface portion 2b on the passenger seat side, and the upper edge of the rear surface portion 2b constitutes the rear edge of the opening 3.

【0013】バッグ5はインフレータ4を囲繞してその
周縁に止着されてリテーナプレート6内に折畳み収納さ
れていて、デイプロイメントドア7はこのリテーナプレ
ート6の上側開放部の前縁に、ヒンジブラケット7aを
介して取付けて、バッグ5の膨張時にこのヒンジブラケ
ット7aの取付部を支点として前方へ回動,展開するよ
うになっている。
The bag 5 surrounds the inflator 4 and is fastened to the periphery of the inflator 4 to be folded and housed in a retainer plate 6, and the deployment door 7 is hinged to the front edge of the upper opening of the retainer plate 6. It is attached via the bracket 7a, and when the bag 5 is inflated, the hinge bracket 7a is rotated and deployed forward with the attachment portion of the hinge bracket 7a as a fulcrum.

【0014】デイプロイメントドア7は勿論、このよう
にリテーナプレート6の前縁に取付けるタイプの他、開
口部3の前縁に取付けるタイプのものであってもよい。
Of course, the deployment door 7 may be of a type that is attached to the front edge of the retainer plate 6 or a type that is attached to the front edge of the opening 3.

【0015】リテーナプレート6は金属パネル材からな
り、その後側壁には多数の穿孔6aを設けて、剛性のあ
る非変形の前側壁および左右側壁に対して、該後側壁を
バッグ5の膨張圧で後方へ変形可能な可撓部9として形
成してある。
The retainer plate 6 is made of a metal panel material, and a large number of perforations 6a are provided in the rear side wall of the retainer plate 6, so that the rear side wall can be moved by the inflation pressure of the bag 5 against the rigid and non-deformed front side wall and the left and right side walls. It is formed as a flexible portion 9 which can be deformed rearward.

【0016】そして、前記インストルメントパネル2の
助手席側の後面部2bをこの可撓部9に、前後方向に圧
縮変形可能な連結部材10で取付けて、ニープロテクタ
11を構成している。
The rear surface portion 2b of the instrument panel 2 on the passenger seat side is attached to the flexible portion 9 by a connecting member 10 which can be compressed and deformed in the front-rear direction to form a knee protector 11.

【0017】連結部材10は、本実施例では側面略U字
状のアーム部材を用いているが、これに限定されるもの
ではなく、可撓部9と後面部2bとを連結でき、所定の
衝突入力により圧縮変形し得るものであればどのような
形状,構造のものでもよい。
Although the connecting member 10 is an arm member having a substantially U-shaped side surface in this embodiment, the connecting member 10 is not limited to this, and the flexible portion 9 and the rear surface portion 2b can be connected to each other, and a predetermined member is used. Any shape and structure may be used as long as they can be compressed and deformed by a collision input.

【0018】図1,2中12はグローブボックスを示
す。
Reference numeral 12 in FIGS. 1 and 2 denotes a glove box.

【0019】以上の実施例構造によれば、車両の前面衝
突時にインフレータ4の作動によりバッグ5が膨張する
と、このバッグ5の膨張圧でデイプロイメントドア7を
前方へ押し退けて回動させて開口部3を開き、バッグ5
が車室後方へ向けて展開する。
According to the structure of the above embodiment, when the bag 5 is inflated by the operation of the inflator 4 in the case of a frontal collision of the vehicle, the inflation pressure of the bag 5 pushes the deployment door 7 forward to rotate it to open it. Open part 3 and bag 5
Deploys towards the rear of the passenger compartment.

【0020】これと同時にバッグ5の膨張圧でリテーナ
プレート6の後側壁の可撓部9が後方へ変形してせり出
し、ニープロテクタ11が可撓部9と共に車室後方へ移
動して圧縮変形ストローク量をL1からL2へ拡大し、図
外の助手席乗員の膝部との間の空間を狭める。
At the same time, the flexible portion 9 on the rear side wall of the retainer plate 6 is rearwardly deformed by the inflation pressure of the bag 5 and protrudes, and the knee protector 11 moves rearward along with the flexible portion 9 toward the rear of the passenger compartment to compress and deform. The amount is expanded from L 1 to L 2 so that the space between the passenger and the passenger's knees (not shown) is narrowed.

【0021】従って、前方へ慣性移動する助手席乗員の
上半身は、膨張展開したバッグ5で柔軟に受け止められ
て拘束,保護される一方、膝部はニープロテクタ11を
構成するインストルメントパネル2の後面部2bで受け
止められて、連結部材10および可撓部9が前方へ圧縮
変形することにより衝撃が緩和されて、膝部を確実に保
護することができる。
Therefore, the upper half of the front passenger occupant, which is inertially moved forward, is flexibly received by the inflated bag 5 to be restrained and protected, while the knee portion is behind the instrument panel 2 which constitutes the knee protector 11. By being received by the surface portion 2b and the connecting member 10 and the flexible portion 9 being compressed and deformed forward, the impact is relieved, and the knee portion can be reliably protected.

【0022】ここで、ニープロテクタ11はインストル
メントパネル2の後面部2bをそのまま有効利用してい
るので、通常の状態では該後面部2bと助手席乗員の膝
部との間の空間を十分に保って居住性を些かも損なうこ
とはないが、該ニープロテクタ11はエアバッグユニッ
ト1の作動時に後方移動して助手席乗員の膝部との間の
空間を狭めるため、膝部が衝撃的にニープロテクタ11
に当接するのを回避できると共に、圧縮変形ストローク
量をL1からL2へ拡大することにより、衝突エネルギー
吸収量を増大することができる。
Since the knee protector 11 effectively utilizes the rear surface portion 2b of the instrument panel 2 as it is, in a normal state, a sufficient space is provided between the rear surface portion 2b and the knee portion of the passenger in the passenger seat. The knee protector 11 moves backward when the airbag unit 1 is activated and narrows the space between the knee protector and the knees of the passenger occupant, so that the knees may be impacted. Knee protector 11
It is possible to avoid abutting against the contact point and to increase the amount of collision energy absorption by expanding the compression deformation stroke amount from L 1 to L 2 .

【0023】また、リテーナプレート6はバック5の膨
張時に、その後側壁の可撓部9のみが後方へ変形移動す
るだけで、他の前側壁および左右側壁は拡径方向に変形
することがないので、インストルメントパネル2の内側
でリテーナプレート6の前方および左右側部に、干渉回
避のための余裕空間を確保しなくてもよいから、エアバ
ッグユニット1のレイアウトを容易に行うことができ
る。
Further, when the retainer plate 6 is inflated, only the flexible portion 9 of the side wall of the retainer plate 6 deforms and moves rearward, and the other front and left and right side walls are not deformed in the radial direction. Since it is not necessary to secure an extra space inside the instrument panel 2 in front of and on the left and right sides of the retainer plate 6, the airbag unit 1 can be laid out easily.

【0024】一方、本実施例ではインストルメントパネ
ル2の後面部2bの上縁が開口部3の後縁となっている
ので、バッグ5の車室後方への膨張展開時に、ニープロ
テクタ11が同時に後方へ移動することにより、インス
トルメントパネル2の開口部3の面積がS1からS2へと
拡大するため、バッグ5の展開性が良好となって乗員保
護をより一層向上することができる。
On the other hand, in this embodiment, since the upper edge of the rear surface portion 2b of the instrument panel 2 is the rear edge of the opening 3, the knee protector 11 is simultaneously moved by the knee protector 11 when the bag 5 is inflated and deployed rearward of the vehicle compartment. By moving to the rear, the area of the opening 3 of the instrument panel 2 is expanded from S 1 to S 2 , so that the bag 5 can be easily deployed and passenger protection can be further improved.

【0025】[0025]

【発明の効果】以上のように本発明によれば、エアバッ
グユニットのインフレータ,バッグを収納するリテーナ
プレートの後側壁のみを可撓部として構成しているの
で、バッグ膨張時に前側壁および左右側壁が拡径方向に
変形することがなく、従って、インストルメントパネル
内側へのレイアウトを容易に行うことができる。
As described above, according to the present invention, since only the rear side wall of the inflator of the air bag unit and the retainer plate for accommodating the bag is constructed as the flexible portion, the front side wall and the left and right side walls when the bag is inflated. Does not deform in the radial direction, so that the layout inside the instrument panel can be easily performed.

【0026】そして、このリテーナプレート後側壁の可
撓部とインストルメントパネルの後面部とを、前後方向
に圧縮変形可能な連結部材で連結してニープロテクタを
構成しているので、エバッグユニット作動時にはバッグ
膨張圧で可撓部を変形させ、ニープロテクタを後方移動
させて助手席乗員の膝部との間の空間を狭めるので、前
方への慣性移動時に膝部がニープロテクタに衝撃的に当
接するのを回避できると共に、前記ニープロテクタの後
方移動により、その圧縮変形ストローク量が拡大されて
衝突エネルギー吸収量を増大でき、安全性を一段と向上
することができる。
The flexible portion of the rear side wall of the retainer plate and the rear surface of the instrument panel are connected by a connecting member which can be compressed and deformed in the front-rear direction to form a knee protector. Sometimes the flexible part is deformed by the bag inflation pressure and the knee protector is moved rearward to narrow the space between the knee protector and the passenger occupant, so that the knee protector impacts the knee protector during the forward inertial movement. Contact with the knee protector can be avoided, and the backward movement of the knee protector can increase the amount of compression deformation stroke of the knee protector, thereby increasing the amount of collision energy absorbed and further improving safety.

【0027】また、前記インストルメントパネルの後面
部は前述のようにエアバッグ作動時に助手席乗員の膝を
迎えるように後方へ移動するから、該後面部を初めから
車室後方へずらしてセットしておく必要がなく、通常の
インストルメントパネル位置にしておくことができるの
で、助手席乗員のレッグスペースを狭めることがなく居
住性を些かも損なうことはない。
Further, since the rear portion of the instrument panel moves rearward so as to reach the passenger's occupant's knees when the airbag is actuated as described above, the rear portion is set to the rear of the vehicle compartment from the beginning. It does not need to be kept and can be kept in the normal instrument panel position, so it does not narrow the leg space of the passenger seat passenger and does not impair habitability.

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

【図1】本発明の一実施例を示す側面図。FIG. 1 is a side view showing an embodiment of the present invention.

【図2】同実施例のエアバッグユニット作動時の側面
図。
FIG. 2 is a side view of the embodiment when the airbag unit is operating.

【図3】ニープロテクタの斜視図。FIG. 3 is a perspective view of a knee protector.

【符号の説明】[Explanation of symbols]

1…エアバッグユニット 2…インストルメントパネル 2a…上面部 2b…後面部 3…開口部 4…インフレータ 5…バッグ 6…リテーナプレート 7…デイプロイメントドア 9…可撓部 10…連結部材 11…ニープロテクタ DESCRIPTION OF SYMBOLS 1 ... Airbag unit 2 ... Instrument panel 2a ... Top part 2b ... Rear part 3 ... Opening part 4 ... Inflator 5 ... Bag 6 ... Retainer plate 7 ... Day deployment door 9 ... Flexible part 10 ... Connecting member 11 ... Knee Protector

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 インストルメントパネルの助手席側の上
面部に形成した開口部に臨んで、該インストルメントパ
ネルの内側の車体側部材に装着されたインフレータと、
インフレータを囲繞してその周縁に止着されて折畳み収
納されたバッグと、インフレータおよびバッグを収納す
る筒状のリテーナプレートと、前記開口部を覆うデイプ
ロイメントドアとを有するエアバッグ装置において、前
記リテーナプレートの後側壁のみをバッグの膨張圧で後
方へ変形可能な可撓部として形成すると共に、インスト
ルメントパネルの助手席側の後面部を該可撓部に、前後
方向に圧縮変形可能な連結部材で取付けて、ニープロテ
クタを構成したことを特徴とするエアバッグ装置。
1. An inflator mounted on a vehicle body-side member inside the instrument panel, facing an opening formed in the upper surface of the instrument panel on the passenger side.
An airbag device comprising a bag that is folded and stored around the inflator and is fastened to the periphery thereof, a tubular retainer plate that stores the inflator and the bag, and a deployment door that covers the opening. Only the rear side wall of the retainer plate is formed as a flexible portion that can be deformed rearward by the inflation pressure of the bag, and the passenger side rear surface portion of the instrument panel is connected to the flexible portion so as to be compressively deformable in the front-rear direction. An airbag device characterized in that a knee protector is configured by being attached with a member.
JP5051169A 1993-03-12 1993-03-12 Air bag device Pending JPH06262999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5051169A JPH06262999A (en) 1993-03-12 1993-03-12 Air bag device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5051169A JPH06262999A (en) 1993-03-12 1993-03-12 Air bag device

Publications (1)

Publication Number Publication Date
JPH06262999A true JPH06262999A (en) 1994-09-20

Family

ID=12879328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5051169A Pending JPH06262999A (en) 1993-03-12 1993-03-12 Air bag device

Country Status (1)

Country Link
JP (1) JPH06262999A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922615A2 (en) * 1997-12-10 1999-06-16 Rover Group Limited A motor vehicle and a motor vehicle airbag module
EP1325846A1 (en) * 2001-12-19 2003-07-09 Hyundai Motor Company Air bag system for protecting the knees of a driver
WO2010021044A1 (en) * 2008-08-21 2010-02-25 パイオニア株式会社 Shock absorbing structure of on-vehicle apparatus
JP2012020682A (en) * 2010-07-15 2012-02-02 Toyota Motor Corp Occupant protection device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922615A2 (en) * 1997-12-10 1999-06-16 Rover Group Limited A motor vehicle and a motor vehicle airbag module
EP0922615A3 (en) * 1997-12-10 2002-02-13 Bayerische Motoren Werke Aktiengesellschaft A motor vehicle and a motor vehicle airbag module
EP1325846A1 (en) * 2001-12-19 2003-07-09 Hyundai Motor Company Air bag system for protecting the knees of a driver
US6886853B2 (en) 2001-12-19 2005-05-03 Hyundai Motor Company Air bag system for protecting the knees of a driver
WO2010021044A1 (en) * 2008-08-21 2010-02-25 パイオニア株式会社 Shock absorbing structure of on-vehicle apparatus
JP2012020682A (en) * 2010-07-15 2012-02-02 Toyota Motor Corp Occupant protection device

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