JP2010173350A - Front passenger seat airbag device - Google Patents

Front passenger seat airbag device Download PDF

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JP2010173350A
JP2010173350A JP2009015297A JP2009015297A JP2010173350A JP 2010173350 A JP2010173350 A JP 2010173350A JP 2009015297 A JP2009015297 A JP 2009015297A JP 2009015297 A JP2009015297 A JP 2009015297A JP 2010173350 A JP2010173350 A JP 2010173350A
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airbag
deployment
opening
passenger seat
instrument panel
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JP5396091B2 (en
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Hiroyuki Iwamoto
寛行 岩本
Hiroki Fukazawa
広樹 深澤
Ryuma Sato
竜馬 佐藤
Satoshi Kitazawa
智 北澤
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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 solve the problem of a conventional technique for deploying an airbag without interference with an opening of an instrumental panel when the airbag is deployed, breakage onto an instrumental panel surface when the airbag is deployed is prevented, and collision to an object at the initial stage of deploying the airbag is not prevented when the airbag is closely deployed (at an out-of-position). <P>SOLUTION: In this airbag for a front passenger seat, an airbag device a container part 1 housing a folded airbag 4 and having an opening on a side opposed to an instrumental panel surface panel; and a deployment door part with a predetermined breakage part on the instrumental panel surface panel covering the opening. A deployment restraining piece 2 swollen toward a center of the opening extends at an intermediate part in a transverse direction of the container part, and deployment passages are formed on right and left ends. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は車両の助手席などに搭載され、車両衝突時に乗員を保護するエアバッグ装置において、近接展開時のエアバック展開を改良した助手席用エアバッグ装置に関するものである。   The present invention relates to an airbag device for a passenger seat, which is mounted on a passenger seat of a vehicle and protects an occupant in the event of a vehicle collision, and which has improved airbag deployment at the time of close deployment.

エアバッグは、車両の衝突における乗員への衝撃を吸収緩和する手段として装備されることが今日広く普及している。エアバッグは車両の衝突等に即応して、瞬時に展開し、乗員を受け止めるもので、展開が速く円滑であることが重要である。
しかし、通常のエアバッグ展開は、乗員が正規着座位置に座り、シートベルトを装着している状態を想定したものであり、乗員が正規位置よりも前方のインストルメントパネル近傍に座っているときのエアバッグ展開、すなわち近接展開時のエアバッグが乗員に与える衝撃を低減させるための効果的なエアバッグ装置が求められている。
従来技術としては、助手席のインストルメントパネルに配設され、衝突センサからの検出信号でバッグを展開させ、助手席の乗員を保護する助手席用エアバッグ装置において、前記エアバッグ装置は、バッグの展開時にこれを放出する上方への開放部を有するケースを備え、該ケース内には、折畳まれて収納されたエアバッグ、インフレータ等を収納、設置し、上記開放部は蓋板で覆われ、且つ、該エアバッグ装置は、インストルメントパネルに形成された開口部内に収納、設置され、該蓋板はインストルメントパネルの上記開口部を塞ぐように配設され、前記エアバッグ装置のケースの室内側開放部近傍には、バッグの展開方向を規制する規制案内片を設けたことを特徴とする助手席用エアバッグ装置（例えば、特許文献１参照）が存在している。 It is widely used today that air bags are equipped as a means for absorbing and mitigating shocks to passengers in vehicle collisions. Airbags are instantly deployed in response to vehicle collisions, etc., and catch an occupant. It is important that the airbag be deployed quickly and smoothly.
However, normal airbag deployment assumes that the occupant is sitting in the regular seating position and wearing the seat belt, and the occupant is sitting near the instrument panel in front of the regular position. There is a need for an effective airbag device for reducing the impact exerted on an occupant by airbag deployment, that is, when the airbag is deployed in close proximity.
As a related art, in an airbag device for a passenger seat that is disposed on an instrument panel of a passenger seat and deploys the bag with a detection signal from a collision sensor to protect the passenger in the passenger seat, the airbag device includes a bag A case having an upward opening that discharges it when the air bag is deployed, and storing and installing a folded airbag, inflator, etc. in the case, and covering the opening with a lid plate. And the airbag device is housed and installed in an opening formed in the instrument panel, and the cover plate is disposed so as to close the opening of the instrument panel. There is an airbag device for a passenger's seat (see, for example, Patent Document 1), characterized in that a regulation guide piece that regulates the deployment direction of the bag is provided in the vicinity of the indoor side opening portion. There.

実開平６−２５０５７号公報（実用新案登録請求の範囲の欄、考案の詳細な説明の欄、及び図１〜図５を参照）Japanese Utility Model Laid-Open No. 6-25057 (refer to the column of claims for utility model registration, the detailed description of the invention, and FIGS. 1 to 5)

前記従来技術は、エアバッグの展開時に、インストルメントパネルの開口に干渉させることなくエアバッグを展開させることによりインストルメントパネル表面への損傷を防止させるものである。
しかしながら前記従来技術は、あくまでエアバッグ展開時のインストルメントパネル表面への損傷を防止するものであって、エアバッグの近接展開（アウトオブポジション）時のエアバッグ展開当初の物体への衝撃を防ぐことは考えられていないものであった。
本発明は、これらの問題を解決した助手席用エアバッグ装置を提供するものである。 The conventional technology prevents damage to the surface of the instrument panel by deploying the airbag without causing interference with the opening of the instrument panel when the airbag is deployed.
However, the above-mentioned conventional technology only prevents damage to the surface of the instrument panel when the airbag is deployed, and prevents an impact on the object at the initial deployment of the airbag when the airbag is deployed (out-of-position). That was unthinkable.
The present invention provides an airbag device for a passenger seat that solves these problems.

上記の目的を達成することができる本発明の第１発明は、請求項１に記載された通りの助手席用エアバッグ装置であり、次のようなものである。
インストルメントパネル内に設置され、インストルメントパネル表面パネルを開いて後方に展開するエアバッグを備えたエアバッグ装置において、該エアバッグ装置は、折り畳んだエアバッグを収納し、インストルメントパネル表面パネルに対向する側に開口部を有する容器部と、開口部を覆うインストルメントパネル表面パネルに所定の破断部を備えたデプロイメントドア部を備え、開口部には、容器部の左右方向中間に、開口部の中央部に向かって膨出する展開規制片が延設され、左右端部に展開通路が形成されてなる構成である。 A first invention of the present invention capable of achieving the above object is an airbag device for a passenger seat as described in claim 1, and is as follows.
In an airbag device having an airbag installed in an instrument panel and opening the instrument panel surface panel and deploying rearward, the airbag device stores a folded airbag and is mounted on the instrument panel surface panel. A container part having an opening on the opposite side, and a deployment door part having a predetermined breakage part on the instrument panel surface panel covering the opening, the opening is provided in the middle of the container part in the left-right direction. The expansion restricting piece that bulges toward the central portion of this is extended, and the expansion passage is formed at the left and right end portions.

上記の目的を達成することができる本発明の第２発明は、請求項２に記載された通りの助手席用エアバッグ装置であり、次のようなものである。
請求項１に記載された発明に加えて、展開規制片は、開口部の前側縁部と後側縁部とから開口部の中央部に向かって互いに対向するように対をなして膨出させる構成である。 A second invention of the present invention capable of achieving the above object is an airbag device for a passenger seat as described in claim 2, which is as follows.
In addition to the invention described in claim 1, the development restricting pieces bulge in pairs so as to face each other from the front edge and the rear edge of the opening toward the center of the opening. It is a configuration.

上記の目的を達成することができる本発明の第３発明は、請求項３に記載された通りの助手席用エアバッグ装置であり、次のようなものである。
請求項１、または請求項２に記載の発明に加えて、展開規制片は、下底をなす縁部側底辺と上底をなす膨出先端側頂辺とを有する台形状である構成である。 A third invention of the present invention that can achieve the above object is an airbag device for a passenger seat as described in claim 3, which is as follows.
In addition to the invention described in claim 1 or 2, the development restricting piece has a trapezoidal shape having an edge side bottom side forming a lower base and a bulging tip side top side forming an upper base. .

上記の目的を達成することができる本発明の第４発明は、請求項４に記載された通りの助手席用エアバッグ装置であり、次のようなものである。
請求項１から請求項３のいずれか１項に記載された発明に加えて、展開規制片は、インストルメントパネル表面パネルに膨出先端部が近接するように傾斜させ、エアバッグの膨出方向を斜めにする構成である。 A fourth invention of the present invention capable of achieving the above object is an airbag device for a passenger seat as described in claim 4, which is as follows.
In addition to the invention described in any one of claims 1 to 3, the deployment restricting piece is inclined so that the bulging tip portion comes close to the instrument panel surface panel, and the bulging direction of the airbag Is configured to be inclined.

本発明に係る助手席用エアバッグ装置は、上記説明のような構成を有するので、以下に記載する効果を奏する。
（１）通常のエアバッグ展開を好適に行うことができるだけではなく、物体がアウトオブポジションの状態にある場合のエアバッグの近接展開時でもエアバッグ膨張当初の物体への衝撃を減少させることができる。
（２）既存のエアバッグ装置内のエアバッグモジュールに後付けすることも可能であるため、汎用性に優れている。 Since the passenger seat airbag apparatus according to the present invention has the configuration as described above, the following effects are achieved.
(1) It is possible not only to perform normal airbag deployment suitably, but also to reduce the impact on the object when the airbag is inflated even when the airbag is in close proximity deployment when the object is in an out-of-position state. it can.
(2) Since it can be retrofitted to an airbag module in an existing airbag device, it is excellent in versatility.

本発明の助手席用エアバッグ装置の特徴である展開規制片を備えたエアバッグモジュールの一例を示す概略斜視図である。It is a schematic perspective view which shows an example of the airbag module provided with the expansion | deployment control piece which is the characteristic of the airbag apparatus for passenger seats of this invention. 本発明の助手席用エアバッグ装置の特徴である展開規制片を備えたエアバッグモジュールの一例を示す概略側面図である。It is a schematic side view showing an example of an airbag module provided with a deployment regulating piece, which is a feature of the airbag device for a passenger seat of the present invention. 本発明の助手席用エアバッグ装置の特徴である展開規制片を備えたエアバッグモジュールの一例を示す概略正面図である。It is a schematic front view which shows an example of the airbag module provided with the expansion | deployment control piece which is the characteristics of the airbag apparatus for passenger seats of this invention. 本発明の助手席用エアバッグ装置を備えた車両内部の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of the inside of a vehicle provided with the airbag apparatus for passenger seats of this invention. 図４のＡ−Ａ線断面を示す要部概略断面図である。It is a principal part schematic sectional drawing which shows the AA line cross section of FIG.

インストルメントパネル内に設置され、インストルメントパネル表面パネルを開いて後方に展開するエアバッグを備えたエアバッグ装置において、該エアバッグ装置は、折り畳んだエアバッグを収納し、インストルメントパネル表面パネルに対向する側に開口部を有する容器部と、開口部を覆うインストルメントパネル表面パネルに所定の破断部を備えたデプロイメントドア部を備え、開口部には、容器部の左右方向中間に、下底をなす縁部側底辺と上底をなす膨出先端側頂辺とを有する台形状である展開規制片を設け、該展開規制片は、開口部の前側縁部と後側縁部とから開口部の中央部に向かって互いに対向するように対をなし、インストルメントパネル表面パネルに膨出先端部が近接するように傾斜させ、エアバッグの膨出方向を斜めに膨出させるように延設され、左右端部に展開通路が形成されてなる助手席用エアバッグ装置。   In an airbag apparatus having an airbag installed in an instrument panel and opening the instrument panel surface panel and deploying rearward, the airbag apparatus stores a folded airbag and is mounted on the instrument panel surface panel. A container part having an opening on the opposite side, and a deployment door part having a predetermined breakage part on the instrument panel surface panel that covers the opening part, A deployment regulating piece having a trapezoidal shape having an edge side bottom side forming an upper edge and a bulging tip side top side forming an upper base, and the deployment regulating piece opens from a front side edge and a rear side edge of the opening. Make a pair so as to face each other toward the center of the part, incline so that the bulging tip is close to the instrument panel surface panel, and the bulging direction of the airbag is oblique Is extended so as to bulge, a passenger airbag apparatus comprising expanded passage is formed in the left and right ends.

以下、本発明の一実施例を添付図面で詳細に説明する。
図１は、展開規制片を備えたエアバッグモジュールの一例を示す概略斜視図、図２は、展開規制片を備えたエアバッグモジュールの一例を示す概略側面図、図３は、展開規制片を備えたエアバッグモジュールの一例を示す概略正面図、図４は、本発明の助手席用エアバッグ装置を備えた車両内部の一例を示す概略斜視図、図５は、図４のＡ−Ａ線断面を示す要部概略断面図である。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view showing an example of an airbag module having a deployment regulating piece, FIG. 2 is a schematic side view showing an example of an airbag module having a deployment regulating piece, and FIG. 4 is a schematic front view showing an example of the provided airbag module, FIG. 4 is a schematic perspective view showing an example of the interior of the vehicle provided with the airbag device for a passenger seat of the present invention, and FIG. 5 is a line AA in FIG. It is a principal part schematic sectional drawing which shows a cross section.

図１からも理解できるように、本発明の助手席用エアバッグ装置には、エアバッグモジュール１に２つの展開規制片２が形成されている。
この展開規制片２は、助手席用エアバッグ装置設置時に乗員側から見て正面側となるエアバッグモジュール１の側面を３等分されている。
これは、エアバッグ展開時のエアバッグ４の形状をバランスよくするためのものである。
また、展開規制片２のサイド部３はエアバッグ展開時に展開がし易いように、切り欠きされている。つまり、展開規制片２を台形状に形成している。具体的には、等脚台形の上底の長さは下底の長さのおよそ１／３としてある。
なお、展開規制片２は、剛性の高いものから低いものまで種々採用することができるが、エアバッグ展開力で簡単に変形してしまい、本発明の効果を減じてしまわない程度の剛性を持つものである。
例えば、エアバッグモジュール１のケース本体部分を構成する鋼板に１．２ｍｍ厚のものを使用し、展開規制片２は厚み０．５〜０．８ｍｍの鋼板を使用する。 As can be understood from FIG. 1, in the airbag device for a passenger seat according to the present invention, two deployment regulating pieces 2 are formed in the airbag module 1.
The deployment regulating piece 2 is divided into three equal parts on the side of the airbag module 1 that is the front side when viewed from the passenger side when the passenger seat airbag device is installed.
This is for improving the shape of the airbag 4 when the airbag is deployed.
Further, the side portion 3 of the deployment restricting piece 2 is notched so as to be easily deployed when the airbag is deployed. That is, the deployment restricting piece 2 is formed in a trapezoidal shape. Specifically, the length of the upper base of the isosceles trapezoid is about 1/3 of the length of the lower base.
The deployment restricting piece 2 can be variously adopted from a high rigidity to a low rigidity. However, the deployment restriction piece 2 is easily deformed by the airbag deployment force and has a rigidity that does not reduce the effect of the present invention. Is.
For example, a steel plate having a thickness of 1.2 mm is used as a steel plate constituting the case main body portion of the airbag module 1, and a steel plate having a thickness of 0.5 to 0.8 mm is used as the deployment restriction piece 2.

図３は、エアバッグモジュール１と展開規制片２との接続状態を示しているものであり、図中ａとｂの長さは、この展開規制片２を完全に折り曲げた際には、エアバッグモジュール１上を覆うことができるが、対をなす展開規制片２同士が重ならない長さである。
また、展開規制片２の取付角度については、図中で示すように角度ｃとｄは、１０°から４０°が好適であり、１０°未満ではエアバッグ４の展開の妨げになり、展開速度を遅くしてしまい、４０°より大きくなってしまうとエアバッグ４の展開力を抑制できず、本発明の特徴であるアウトオブポジション下での好適なエアバッグ展開の効果を発揮することができないものである。 FIG. 3 shows a connection state between the airbag module 1 and the deployment restricting piece 2, and the lengths a and b in the figure indicate the air bag when the deployment restricting piece 2 is completely bent. The bag module 1 can be covered, but the length is such that the paired development regulating pieces 2 do not overlap each other.
Further, as shown in the drawing, the angles c and d are preferably 10 ° to 40 °, and if the angle is less than 10 °, the deployment of the airbag 4 is hindered. If the air bag 4 becomes larger than 40 °, the deployment force of the airbag 4 cannot be suppressed, and the advantageous effect of deploying the airbag under the out-of-position characteristic of the present invention cannot be exhibited. Is.

従って、本発明の助手席用エアバッグ装置は、車両の助手席前部に備え（図４参照）、図５のように、台形状の展開規制片２をエアバッグモジュール１の接続角度を１０°から４０°で設けることによって、エアバッグ展開は、エアバッグモジュール１の両サイドから展開し、センター部が最後に展開してくるという展開順序になるため、エアバッグ展開時にアウトオブポジションにある物体を両サイドから覆い、最後にエアバッグの中央部をソフトに押すことになり、アウトオブポジション下の物体に与える衝撃を減少させることができるものである。   Therefore, the airbag device for a passenger seat according to the present invention is provided in the front portion of the passenger seat of the vehicle (see FIG. 4), and the connection angle of the airbag module 1 is set to 10 with the trapezoidal deployment restriction piece 2 as shown in FIG. Since the airbag is deployed from both sides of the airbag module 1 and the center portion is deployed last, the airbag is deployed out-of-position when the airbag is deployed. The object is covered from both sides, and finally the central part of the airbag is softly pushed, so that the impact given to the object under the out-of-position can be reduced.

なお、前記実施例では、左右の展開規制片２の接続角度を同じ角度のものを示したが、左右の角度を変えて設けることも可能である。
例えば、フロントガラス側の展開規制片２の角度を他方の展開規制片２の角度より小さくすることにより、エアバッグ展開時にエアバッグを先ずフロントガラス側に膨出させるというようなエアバッグ展開動作を変更させることも可能である。
また、前記実施例では展開規制片２を両側に設けたものを示したが、展開規制片２の長さを変更することで、片側だけに展開規制片２を設けることも可能である。
また本実施例では、展開規制片２を台形状にしたものを示したが、台形に限らず、半円形、半楕円形等、種々の形が採用できることはいうまでもない。 In addition, in the said Example, although the thing with the same angle was shown for the connection angle of the right and left expansion | deployment control piece 2, it is also possible to change and provide a left-right angle.
For example, by making the angle of the deployment restriction piece 2 on the windshield side smaller than the angle of the other deployment restriction piece 2, the airbag deployment operation is such that the airbag is first inflated to the windshield side when the airbag is deployed. It is also possible to change.
Moreover, although the thing which provided the deployment control piece 2 on both sides was shown in the said Example, it is also possible to provide the deployment control piece 2 only in one side by changing the length of the deployment control piece 2. FIG.
In the present embodiment, the trapezoidal shape of the development restricting piece 2 is shown, but it is needless to say that the shape is not limited to the trapezoid, and various shapes such as a semicircular shape and a semielliptical shape can be adopted.

自動車の助手席だけでなく、後部座席で使用するエアバッグ装置にも利用することができる。   It can be used not only in a passenger seat of an automobile but also in an airbag device used in a rear seat.

１・・・・エアバッグモジュール
２・・・・展開規制片
３・・・・サイド部
４・・・・エアバッグ DESCRIPTION OF SYMBOLS 1 .... Airbag module 2 .... Deployment restriction piece 3 .... Side part 4 .... Air bag

Claims (4)

インストルメントパネル内に設置され、インストルメントパネル表面パネルを開いて後方に展開するエアバッグを備えたエアバッグ装置において、該エアバッグ装置は、折り畳んだエアバッグを収納し、インストルメントパネル表面パネルに対向する側に開口部を有する容器部と、開口部を覆うインストルメントパネル表面パネルに所定の破断部を備えたデプロイメントドア部を備え、開口部には、容器部の左右方向中間に、開口部の中央部に向かって膨出する展開規制片が延設され、左右端部に展開通路が形成されてなることを特徴とする助手席用エアバッグ装置。 In an airbag apparatus having an airbag installed in an instrument panel and opening the instrument panel surface panel and deploying rearward, the airbag apparatus stores a folded airbag and is mounted on the instrument panel surface panel. A container part having an opening on the opposite side, and a deployment door part having a predetermined breakage part on the instrument panel surface panel covering the opening, the opening is provided in the middle of the container part in the left-right direction. An airbag device for a passenger seat, characterized in that a deployment regulating piece that bulges toward the center of the vehicle is extended and a deployment passage is formed at the left and right ends. 展開規制片は、開口部の前側縁部と後側縁部とから開口部の中央部に向かって互いに対向するように対をなして膨出させることを特徴とする請求項１記載の助手席用エアバッグ装置。 2. The passenger seat according to claim 1, wherein the development restricting pieces are bulged in a pair so as to face each other from the front edge and the rear edge of the opening toward the center of the opening. Air bag device. 展開規制片は、下底をなす縁部側底辺と上底をなす膨出先端側頂辺とを有する台形状であることを特徴とする請求項１、または請求項２に記載の助手席用エアバッグ装置。 The passenger seat according to claim 1 or 2, wherein the development restricting piece has a trapezoidal shape having an edge side base forming a lower base and a bulging tip side top forming an upper base. Airbag device. 展開規制片は、インストルメントパネル表面パネルに膨出先端部が近接するように傾斜させ、エアバッグの膨出方向を斜めにしたことを特徴とする請求項１から請求項３のいずれか１項に記載の助手席用エアバッグ装置。 The deployment restricting piece is inclined so that the bulging tip portion is close to the instrument panel surface panel, and the bulging direction of the airbag is slanted. An airbag device for a passenger seat as described in 1.
JP2009015297A 2009-01-27 2009-01-27 Airbag device for passenger seat Expired - Fee Related JP5396091B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0478637A (en) * 1990-07-13 1992-03-12 Toyota Motor Corp Automobile air bag device
JPH09240410A (en) * 1996-03-06 1997-09-16 Honda Motor Co Ltd Air bag device
JPH1142998A (en) * 1997-07-29 1999-02-16 Toyota Motor Corp Vehicular internal trimming member including air bag door
JP2001206182A (en) * 2000-01-28 2001-07-31 Sanko Gosei Ltd Air bag device for automobile
JP2004001677A (en) * 2002-03-28 2004-01-08 Sanko Gosei Ltd Air bag apparatus for automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0478637A (en) * 1990-07-13 1992-03-12 Toyota Motor Corp Automobile air bag device
JPH09240410A (en) * 1996-03-06 1997-09-16 Honda Motor Co Ltd Air bag device
JPH1142998A (en) * 1997-07-29 1999-02-16 Toyota Motor Corp Vehicular internal trimming member including air bag door
JP2001206182A (en) * 2000-01-28 2001-07-31 Sanko Gosei Ltd Air bag device for automobile
JP2004001677A (en) * 2002-03-28 2004-01-08 Sanko Gosei Ltd Air bag apparatus for automobile

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