JP4614797B2 - Airbag door - Google Patents

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JP4614797B2
JP4614797B2 JP2005073551A JP2005073551A JP4614797B2 JP 4614797 B2 JP4614797 B2 JP 4614797B2 JP 2005073551 A JP2005073551 A JP 2005073551A JP 2005073551 A JP2005073551 A JP 2005073551A JP 4614797 B2 JP4614797 B2 JP 4614797B2
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door panel
airbag
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JP2006256381A (en
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裕明 鈴木
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Inoac Corp
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本発明は、エアバッグドアに関し、更に詳細には、内側にエアバッグ装置を設置した車両内装部材に設けられ、エアバッグの展開方向と異なる方向へ開放する第１ドアパネルおよび展開方向と同じ方向へ開放する第２ドアパネルを備えたエアバッグドアに関するものである。   The present invention relates to an airbag door, and more specifically, a first door panel provided in a vehicle interior member having an airbag device installed therein and opened in a direction different from the deployment direction of the airbag and in the same direction as the deployment direction. The present invention relates to an airbag door provided with a second door panel to be opened.

近年生産される殆どの自動車には、乗員保護を図る装置の一つとしてエアバッグ装置が装備されている。例えば図５に例示するように、助手席乗員用のエアバッグ装置５０は、乗員室前方に組付けた車両内装部材であるインストルメントパネル１０の内側に、乗員から見えないように設置されている。このため、インストルメントパネル１０を構成する合成樹脂製の基材１２には、エアバッグ装置５０の作動により膨張するエアバッグ５２で内側から押圧されると、その力により外方へ開放するエアバッグドアＡＤ１が設けられている。   Most automobiles produced in recent years are equipped with an airbag device as one of the devices for protecting passengers. For example, as illustrated in FIG. 5, the airbag device 50 for the passenger on the passenger seat is installed inside the instrument panel 10 that is a vehicle interior member assembled in front of the passenger compartment so as not to be seen by the passenger. . For this reason, when the synthetic resin base material 12 constituting the instrument panel 10 is pressed from the inside by the airbag 52 that is inflated by the operation of the airbag device 50, the airbag is opened outward by the force. A door AD1 is provided.

図５に例示したエアバッグドアＡＤ１は、２枚のドアパネルから構成される両開きタイプであって、フロントガラスＦＷ側へ開放する第１ドアパネル２０と、図示しない乗員席側へ開放する第２ドアパネル２２とを有している。ここで、エアバッグ５２が乗員席側へ膨張展開するから、第１ドアパネル２０はエアバッグ５２の膨張方向とは異なる方向へ開放し、第２ドアパネル２２はエアバッグ５２の膨張方向と同じ方向へ開放することになる。これら第１ドアパネル２０および第２ドアパネル２２は、基材１２に一体的に形成されて常には該基材１２の一部分をなし、その外縁ラインおよび境界ラインに「日字形」の破断予定部２４が延設されている。従って、破断予定部２４をエアバッグ５２の押圧力により破断させることで、第１ドアパネル２０および第２ドアパネル２２は、基材１２から分離して夫々の方向への開放が許容される。   The airbag door AD1 illustrated in FIG. 5 is a double-open type composed of two door panels, and includes a first door panel 20 that opens to the windshield FW side and a second door panel 22 that opens to a passenger seat (not shown). And have. Here, since the airbag 52 is inflated and deployed toward the passenger seat side, the first door panel 20 is opened in a direction different from the direction in which the airbag 52 is inflated, and the second door panel 22 is in the same direction as the direction in which the airbag 52 is inflated. Will be released. The first door panel 20 and the second door panel 22 are integrally formed on the base material 12 and always form a part of the base material 12, and “digit” -shaped fracture scheduled portions 24 are formed on the outer edge line and the boundary line. It is extended. Therefore, the first door panel 20 and the second door panel 22 are separated from the base material 12 and allowed to open in their respective directions by breaking the breakable portion 24 by the pressing force of the airbag 52.

また、図５で符号３０はインサート部材であり、ドア周辺部位に固定される固定支持部３２と、第１ドアパネル２０を支持して補強する第１可動支持部３４と、第２ドアパネル２２を支持して補強する第２可動支持部３８を有している。このインサート部材３０により、基材１２から分離した第１ドアパネル２０は、第１ヒンジ部３６を介して固定支持部３２に連結された第１可動支持部３４に支持され、エアバッグ５２の膨張方向とは異なる方向へ開放する。また、基材１２から分離した第２ドアパネル２２は、第２ヒンジ部４０を介して固定支持部３２に連結された第２可動支持部３８に支持され、エアバッグ５２の膨張方向と同じ方向へ開放する。このようなエアバッグドアに関しては、例えば特許文献１に開示されている。
特開２００２−１４４９９９号公報 In FIG. 5, reference numeral 30 denotes an insert member, which supports a fixed support portion 32 fixed to a door peripheral portion, a first movable support portion 34 that supports and reinforces the first door panel 20, and supports the second door panel 22. The second movable support portion 38 is reinforced. The first door panel 20 separated from the base material 12 by the insert member 30 is supported by the first movable support portion 34 connected to the fixed support portion 32 via the first hinge portion 36, and the inflation direction of the airbag 52 is Open in a different direction. Further, the second door panel 22 separated from the base material 12 is supported by the second movable support portion 38 connected to the fixed support portion 32 via the second hinge portion 40, and extends in the same direction as the inflation direction of the airbag 52. Open. Such an airbag door is disclosed in Patent Document 1, for example.
JP 2002-144999 A

ところで、近年開発されているエアバッグ装置５０の中には、エアバッグ５２がインストルメントパネル１０の前面下方まで膨張展開して、乗員の腹部まで対応させるようにしたタイプがある。このエアバッグ５２は、図５に一点鎖線で例示したように、エアバッグドアＡＤ１の第１ドアパネル２０および第２ドアパネル２２が開放して形成されたエアバッグ通過口１４を介して一旦上方へ膨張し、次いで乗員席側へ変向しながら膨張した後、更に下方へ変向するよう膨張する。すなわちエアバッグ５２は、一瞬にして完了する膨張展開に際し、その膨張方向が大きく変化するようになる。   By the way, in the airbag apparatus 50 developed in recent years, there is a type in which the airbag 52 is inflated and deployed to the lower part of the front surface of the instrument panel 10 to correspond to the abdomen of the occupant. As illustrated by the one-dot chain line in FIG. 5, the airbag 52 is temporarily inflated upward via the airbag passage port 14 formed by opening the first door panel 20 and the second door panel 22 of the airbag door AD1. Then, after inflating while turning to the occupant seat side, it expands to turn further downward. That is, when the airbag 52 is inflated and deployed in an instant, the inflation direction changes greatly.

しかしながら従来のエアバッグドアＡＤ１では、膨張するエアバッグ５２の膨張展開に支障を来たさないようにするという観点から、第１ドアパネル２０をフロントガラスＦＷ側へ大きく開放させ、エアバッグ通過口１４から速やかに退避させるようにしていた。従って第１ドアパネル２０に関しては、膨張展開するエアバッグ５２に接触させないようにすることに主眼が置かれており、例えばエアバッグ５２がフロントガラスＦＷ側へ膨張することを規制する機能を付加させる技術的思想はなかった。一方、第２ドアパネル２２に関しては、エアバッグ通過口１４から退避した位置まで開放させるよう設計されていたが、基材１２の外面へ接触する全開状態まで確実に開放させるよう考慮していない場合もあった。   However, in the conventional airbag door AD1, the first door panel 20 is largely opened to the windshield FW side from the viewpoint of not hindering the inflation and deployment of the inflating airbag 52, and the airbag passage port 14 is opened. I was trying to evacuate immediately. Therefore, with respect to the first door panel 20, the main focus is on preventing the airbag 52 from inflating and deploying from coming into contact with the first door panel 20. There was no specific thought. On the other hand, the second door panel 22 is designed to be opened to the position retracted from the airbag passage 14, but there is a case where the second door panel 22 is not considered to be surely opened to the fully opened state in contact with the outer surface of the base material 12. there were.

このため、開放した第１ドアパネル２０および第２ドアパネル２２の間に形成された展開領域Ｓは、図５に例示したように、エアバッグ通過口１４の略真上に画成されるようになる。これによりエアバッグ５２は、上方へ変形した状態で膨張展開するため、インストルメントパネル１０の下方位置まで到達するのに時間のかかるおそれがあった。   For this reason, the deployment region S formed between the opened first door panel 20 and the second door panel 22 is defined substantially directly above the airbag passage opening 14 as illustrated in FIG. . Accordingly, since the airbag 52 is inflated and deployed in a state of being deformed upward, it may take time to reach the lower position of the instrument panel 10.

更に、第２ドアパネル２２が充分に開放しない場合には、この第２ドアパネル２２の開放端側であるドア端部２２Ａに、エアバッグ５２の下側部分が接触したり引っ掛かり易くなる。このため、エアバッグ５２に擦れ等の損傷等が発生するおそれもあった。   Further, when the second door panel 22 is not sufficiently opened, the lower portion of the airbag 52 is likely to come into contact with or catch on the door end 22A that is the open end side of the second door panel 22. For this reason, the airbag 52 may be damaged such as rubbing.

従って本発明では、エアバッグの膨張展開方向が適正となるようにして、該エアバッグの乗員保護機能が充分に発揮されるようにしたエアバッグドアを提供することを目的とする。   Accordingly, an object of the present invention is to provide an airbag door in which the airbag is inflated and deployed in an appropriate direction so that the occupant protection function of the airbag is sufficiently exhibited.

前記課題を解決し、所期の目的を達成するため、請求項１に記載の発明は、
内側にエアバッグ装置を設置した車両内装部材に設けられ、破断予定部をエアバッグにより破断することで、乗員席側への前記エアバッグの展開方向と異なる方向に第１ヒンジ部を中心として開放する第１ドアパネルおよび該エアバッグの展開方向と同じ方向へ第２ヒンジ部を中心として開放する第２ドアパネルを備え、第１ドアパネルおよび第２ドアパネルの開放により車両内装部材にエアバッグ通過口を形成するエアバッグドアにおいて、
前記第１ヒンジ部は、前記第１ドアパネルの該第１ヒンジ部側に沿って前記車両内装部材に設けた固定支持部と該第１ドアパネルとを弛んだ状態で連結支持する一方、前記エアバッグの押圧力を受け開放する該第１ドアパネルにより伸長状態に変形し、
前記第１ドアパネルは、前記エアバッグ通過口の開口端部に接触したもとで、伸長状態の前記第１ヒンジ部により、該エアバッグ通過口の上方において前記エアバッグの展開方向へ傾斜した開放姿勢で支持され、
前記第２ヒンジ部は、前記第２ドアパネルの該第２ヒンジ部側に沿って前記車両内装部材に設けた固定支持部と該第２ドアパネルとを弛んだ状態で連結支持する一方、前記エアバッグの押圧力を受け開放する該第２ドアパネルにより伸長状態に変形して、該第２ドアパネルを該車両内装部材の外面に接触した開放姿勢で支持することを特徴とする。 In order to solve the problem and achieve the intended purpose, the invention according to claim 1
It is provided on the vehicle interior member with the airbag device installed inside, and the planned breakage portion is broken by the airbag, so that the first hinge portion is opened in the direction different from the deployment direction of the airbag toward the passenger seat side. A first door panel that opens and a second door panel that opens in the same direction as the deployment direction of the airbag with the second hinge portion as a center, and an airbag passage opening is formed in the vehicle interior member by opening the first door panel and the second door panel In the airbag door that
The first hinge portion connects and supports the fixed support portion provided on the vehicle interior member along the first hinge portion side of the first door panel and the first door panel in a slack state, while the airbag The first door panel that is opened by receiving the pressing force is deformed into an extended state,
The first door panel is in contact with the opening end of the airbag passage opening, and is in an open posture inclined in the deployment direction of the airbag above the airbag passage opening by the extended first hinge portion. Supported by
The second hinge portion connects and supports the fixed support portion provided on the vehicle interior member along the second hinge portion side of the second door panel and the second door panel in a slack state, while the airbag deformed into an extended state by the second door panel for receiving a pressing force open the second door panel, characterized in that the support in the open position in contact with the outer surface of the vehicle interior member.

従って、請求項１に係る発明によれば、第１ドアパネルおよび第２ドアパネルの間に画成される展開領域が乗員席側に位置するようになり、エアバッグの膨張展開方向を適正にすることができる。しかも、伸長状態に変形した第１ヒンジ部で支持された第１ドアパネルが、エアバッグ通過口の開口端部に接触したもとで、該エアバッグ通過口の上方においてエアバッグの展開方向へ傾斜した開放姿勢で支持されるので、エアバッグの乗員席側への展開が該第１ドアパネルにより適切にサポートされる。また、伸長状態に変形した第２ヒンジ部で支持された第２ドアパネルが、車両内装部材の外面に接触した開放姿勢で支持されるので、展開するエアバッグに該第２ドアパネルが接触しないようにして、該エアバッグに擦れ等の損傷が発生するのを防止し得る。 Therefore, according to the first aspect of the invention, the deployment area defined between the first door panel and the second door panel is positioned on the passenger seat side, and the airbag is inflated and deployed in an appropriate direction. Can do. In addition, the first door panel supported by the first hinge portion deformed into the extended state is in contact with the opening end portion of the airbag passage opening, and is inclined in the airbag deployment direction above the airbag passage opening. Therefore, the deployment of the airbag to the passenger seat side is appropriately supported by the first door panel. In addition, since the second door panel supported by the second hinge portion deformed in the extended state is supported in an open posture in contact with the outer surface of the vehicle interior member, the second door panel should be prevented from contacting the deploying airbag. Thus, the airbag can be prevented from being damaged such as rubbing.

請求項２に記載の発明は、請求項１に記載の発明において、
前記第１ヒンジ部は、前記固定支持部の前記第１ドアパネル側と該第１ドアパネルの該第１ヒンジ部側とを第１支持長で連結支持し、
前記第２ヒンジ部は、前記固定支持部の前記第２ドアパネル側と該第２ドアパネルの該第２ヒンジ部側とを、前記第１支持長より長い第２支持長で連結支持することを要旨とするものである。 The invention according to claim 2 is the invention according to claim 1,
Said first hinge portion is connected supports the first hinge portion side of the first door panel side and the first door panel before Symbol fixed support part in a first support length,
It said second hinge portion includes a front Symbol fixed the second door panel side of the support portion and the second door panel second hinge side, be connected and supported by the first supporting length longer than the second support length Is a summary.

従って、請求項２に係る発明によれば、第１ヒンジ部が第２ヒンジ部より短いので、第１ドアパネルの開放角度を第２ドアパネルの開放角度より小さくすることができる。 Therefore, according to the invention of claim 2, since the first hinge portion is shorter than the second hinge part can be the opening angle of the first door panel less than open- angle of the second door panel.

本発明に係るエアバッグドアによれば、エアバッグの膨張展開方向が適正となり、該エアバッグの乗員保護機能を充分に発揮させることができる利点等がある。   According to the airbag door according to the present invention, there is an advantage that the airbag can be properly inflated and deployed, and the passenger protecting function of the airbag can be sufficiently exhibited.

次に、本発明に係るエアバッグドアにつき、好適な実施例を挙げ、添付図面を参照しながら、以下に説明する。なお後述する実施例では、図５に既出の部材・部位は、同一の符号を付して説明する。   Next, a preferred embodiment of the airbag door according to the present invention will be described below with reference to the accompanying drawings. In the examples described later, the members and parts already described in FIG.

図１は、本実施例に係るエアバッグドアの構成を示したインストルメントパネルの部分断面図、図２は、エアバッグドアの開放状態で示したインストルメントパネルの断面図である。このインストルメントパネル１０は、ポリプロピレン(ＰＰ)等の合成樹脂から所要形状に形成された基材１２を主体とした単層タイプとなっている。そして、車両乗員室の前方に設置した際には、リィンフォースバー等の車体構成部材に強固に固定されたエアバッグ装置５０を内側に収容するようになる。また、基材１２においてエアバッグ装置５０に対応する位置には、エアバッグドアＡＤが設けられている。   FIG. 1 is a partial cross-sectional view of an instrument panel showing a configuration of an airbag door according to the present embodiment, and FIG. 2 is a cross-sectional view of the instrument panel shown in an opened state of the airbag door. The instrument panel 10 is a single-layer type mainly composed of a base material 12 formed in a required shape from a synthetic resin such as polypropylene (PP). And when installing in the front of a vehicle passenger compartment, the airbag apparatus 50 firmly fixed to vehicle body structural members, such as a reinforcement bar, will be accommodated inside. Further, an airbag door AD is provided at a position corresponding to the airbag device 50 in the base material 12.

エアバッグドアＡＤを構成する第１ドアパネル２０および第２ドアパネル２２は、基本的には前述した従来と同一構成となっている。すなわち、第１ドアパネル２０および第２ドアパネル２２は、基材１２の裏面においてエアバッグ装置５０に対応した部位に「日字形」の破断予定部２４を延設することで、開放前は基材１２の一部分として構成されている。この破断予定部２４は、第１ドアパネル２０および第２ドアパネル２２の外縁ラインおよび境界ラインに沿って溝を形成することで薄肉となった部位であって、エアバッグ５２の押圧力が加わった際に応力が集中的に加わることで破断が惹起される。   The first door panel 20 and the second door panel 22 constituting the airbag door AD basically have the same configuration as the above-described conventional one. That is, the first door panel 20 and the second door panel 22 are provided with a “day-shaped” planned break portion 24 at a portion corresponding to the airbag device 50 on the back surface of the base material 12, so that the base material 12 is opened before opening. It is configured as a part of. The planned fracture portion 24 is a portion that is thinned by forming grooves along the outer edge line and the boundary line of the first door panel 20 and the second door panel 22, and when the pressing force of the airbag 52 is applied. Fracture is caused by stress being applied to the intensively.

インサート部材３０は、第１ドアパネル２０および第２ドアパネル２２からなる両開きタイプに対応するよう形成された合成樹脂(ＴＰＯ等)製の一体成形部材であり、全体的な基本構成は図５に例示のものと同一である。すなわち、ドア周辺部位に固定される固定支持部３２と、第１および第２のドアパネル２０,２２の裏面に固定される第１および第２の可動支持部３４,３８と、これら可動支持部３４,３８と固定支持部３２とを夫々連結する第１および第２のヒンジ部３６,４０とから構成されている。   The insert member 30 is an integrally formed member made of synthetic resin (TPO or the like) formed so as to correspond to the double door type including the first door panel 20 and the second door panel 22, and the overall basic configuration is illustrated in FIG. Is the same. That is, the fixed support portion 32 fixed to the door peripheral portion, the first and second movable support portions 34 and 38 fixed to the back surfaces of the first and second door panels 20 and 22, and the movable support portion 34. , 38 and the fixed support portion 32 are respectively connected to the first and second hinge portions 36, 40.

そして、本実施例のエアバッグドアＡＤでは、第１ドアパネル２０を支持する第１ヒンジ部３６が、この第１ドアパネル２０がインストルメントパネル１０の基材１２に形成されたエアバッグ通過口１４の開口端部１４Ａに接触して、その開放角度が規制されるようにした構造となっている。一方、第２ドアパネル２２を支持する第２ヒンジ部４０は、この第２ドアパネル２２がインストルメントパネル１０の基材１２の外面に接触するまで開放するのを許容する構造となっている。   And in the airbag door AD of a present Example, the 1st hinge part 36 which supports the 1st door panel 20 is this 1st door panel 20 of the airbag passage opening 14 formed in the base material 12 of the instrument panel 10. FIG. It has a structure in which the opening angle is regulated by contacting the opening end portion 14A. On the other hand, the second hinge portion 40 that supports the second door panel 22 has a structure that allows the second door panel 22 to open until it contacts the outer surface of the base material 12 of the instrument panel 10.

第１ヒンジ部３６は、図３に例示したように、インストルメントパネル１０の基材１２側に固定された固定支持部３２と第１ドアパネル２０の端縁部とを、第１支持長Ｌ１で連結支持している。そして第１ヒンジ部３６は、第１ドアパネル２０の開放前は略Ｕ字形の断面形状に小さく弛んだ縮短状態となっており、破断予定部２４の破断後はエアバッグ５２の押圧力により伸長状態へ変形して、第１ドアパネル２０を基材１２から適宜浮上させる。このような第１支持長Ｌ１の第１ヒンジ部３６は、第１ドアパネル２０が基材１２に対して概ね７５度程度に開放すると、完全に伸長した状態まで変形するようになる。これにより第１ドアパネル２０は、基材１２に形成されたエアバッグ通過口１４の開口端部１４Ａに接触するようになり、エアバッグ通過口１４の上方へ傾斜状態に延出した姿勢に保持され、それ以上の開放変位が規制される。   As illustrated in FIG. 3, the first hinge portion 36 includes a fixed support portion 32 fixed to the base material 12 side of the instrument panel 10 and an end edge portion of the first door panel 20 with a first support length L1. Supports connection. The first hinge part 36 is in a shortened and contracted state with a substantially U-shaped cross-sectional shape before the first door panel 20 is opened, and is in an extended state by the pressing force of the airbag 52 after the breakable part 24 is broken. The first door panel 20 is appropriately lifted from the base material 12. The first hinge portion 36 having the first support length L1 is deformed to a fully extended state when the first door panel 20 is opened to about 75 degrees with respect to the base member 12. As a result, the first door panel 20 comes into contact with the opening end portion 14A of the airbag passage opening 14 formed in the base member 12, and is held in a posture extending in an inclined state above the airbag passage opening 14. Any further open displacement is restricted.

第２ヒンジ部４０は、図４に例示したように、インストルメントパネル１０の基材１２側に固定された固定支持部３２と第２ドアパネル２２の端縁部とを、第２支持長Ｌ２で連結支持している。そして第２ヒンジ部４０は、第２ドアパネル２２の開放前は略Ｕ字形の断面形状に大きく弛んだ縮短状態となっており、破断予定部２４の破断後はエアバッグ５２の押圧力により伸長状態へ変形して、第２ドアパネル２２を基材１２から適宜浮上させる。このような第２支持長Ｌ２の第２ヒンジ部４０は、第２ドアパネル２２が基材１２の外面に接触する状態、すなわち第２ドアパネル２２が概ね１８０度程度に開放すると略伸長した状態まで変形するようになる。これにより第２ドアパネル２２は、基材１２の外面に接触(衝突)するまでの開放変位が確実に許容される。   As illustrated in FIG. 4, the second hinge portion 40 includes a fixed support portion 32 fixed to the base material 12 side of the instrument panel 10 and an end edge portion of the second door panel 22 with a second support length L2. Supports connection. The second hinge portion 40 is in a contracted state that is largely slackened in a substantially U-shaped cross-sectional shape before the second door panel 22 is opened, and is in an expanded state by the pressing force of the airbag 52 after the planned break portion 24 is broken. The second door panel 22 is appropriately lifted from the base material 12. The second hinge portion 40 having the second support length L2 is deformed to a state where the second door panel 22 is in contact with the outer surface of the base member 12, that is, a state where the second door panel 22 is substantially extended when the second door panel 22 is opened to about 180 degrees. To come. As a result, the second door panel 22 is reliably allowed to displace until the second door panel 22 contacts (collises) the outer surface of the substrate 12.

そして、第１支持長Ｌ１の第１ヒンジ部３６と第２支持長Ｌ２の第２ヒンジ部４０とを比較すると、図１からも明らかなように、第１ヒンジ部３６の方が短く設定されている。すなわち本実施例のエアバッグドアＡＤでは、第１ヒンジ部３６および第２ヒンジ部４０の各支持長Ｌ１,Ｌ２の長さ設定に基づき、第１ドアパネル２０および第２ドアパネル２２の開放角度を規定する構造となっている。   When comparing the first hinge portion 36 having the first support length L1 and the second hinge portion 40 having the second support length L2, the first hinge portion 36 is set to be shorter, as is apparent from FIG. ing. That is, in the airbag door AD of the present embodiment, the opening angles of the first door panel 20 and the second door panel 22 are defined based on the length settings of the support lengths L1 and L2 of the first hinge portion 36 and the second hinge portion 40. It has a structure to do.

なお、第２ヒンジ部４０の第２支持長Ｌ２は、第１ドアパネル２０が基材１２の外面に接触した最大開放角度まで開放した状態でも多少の弛みがある程度に設定すれば、この第１ドアパネル２０を最大開放角度まで確実に開放させることができる。   Note that the second support length L2 of the second hinge portion 40 is such that the first door panel 20 is set to a certain degree of slack even when the first door panel 20 is opened to the maximum opening angle in contact with the outer surface of the base member 12, and the first door panel 20 20 can be reliably opened to the maximum opening angle.

このように構成された本実施例のエアバッグドアＡＤでは、図２に例示したように、エアバッグ装置５０の作動時に、第１ドアパネル２０はエアバッグ通過口１４の上方へ傾斜状態に停止し、第２ドアパネル２２は基材１２の上面に接触した倒伏状態まで開放する。これにより、これら第１ドアパネル２０と第２ドアパネル２２との間に画成される展開領域Ｓは、図５の場合と比較すると、エアバッグ通過口１４に対して乗員席方向へかなり偏倚して位置するようになる。すなわち展開領域Ｓは、エアバッグ５２の膨張展開方向と略一致する位置に画成されるようになる。   In the airbag door AD of the present embodiment configured as described above, as illustrated in FIG. 2, the first door panel 20 stops in an inclined state above the airbag passage opening 14 when the airbag device 50 is operated. The second door panel 22 is opened to the lying down state in contact with the upper surface of the substrate 12. As a result, the deployment region S defined between the first door panel 20 and the second door panel 22 is considerably deviated in the passenger seat direction with respect to the airbag passage opening 14 as compared with the case of FIG. Come to be located. That is, the deployment region S is defined at a position that substantially matches the inflation and deployment direction of the airbag 52.

従って、本実施例のエアバッグドアＡＤでは、次のような効果を奏する。先ず第１に、第１ドアパネル２０および第２ドアパネル２２の間に画成される展開領域Ｓが乗員席側に位置しているため、エアバッグ５２が早く適正な形状に膨張展開するようになる。そして第２に、第１ヒンジ部３６で傾斜状態に開放規制された第１ドアパネル２０により、エアバッグ通過口１４を介して上方へ膨張するエアバッグ５２が、フロントガラスＦＷ側へ膨張するのを規制できると同時に乗員席側へ適切に膨張展開するようサポートできる。また第３に、第２ヒンジ部４０に支持された第２ドアパネル２２が、基材１２の外面に接触するまで開放するため、エアバッグ５２が乗員席側へ膨張展開するのに支障を来たさない。更に第４に、図２および図４に例示したように、第２ドアパネル２２のドア端部２２Ａがエアバッグ５２に接触しないので、エアバッグ５２に擦れ等の損傷が発生するおそれがない。   Therefore, the airbag door AD of the present embodiment has the following effects. First, since the deployment region S defined between the first door panel 20 and the second door panel 22 is located on the passenger seat side, the airbag 52 is quickly inflated and deployed to an appropriate shape. . Second, the first door panel 20 that is restricted to be inclined by the first hinge portion 36 causes the airbag 52 that is inflated upward through the airbag passage 14 to inflate to the windshield FW side. At the same time that it can be regulated, it can support the appropriate expansion and deployment to the passenger seat side. Thirdly, since the second door panel 22 supported by the second hinge part 40 is opened until it contacts the outer surface of the base member 12, the airbag 52 has a problem in inflating and deploying to the passenger seat side. No. Fourth, as illustrated in FIGS. 2 and 4, the door end 22 </ b> A of the second door panel 22 does not come into contact with the airbag 52, so that there is no possibility that the airbag 52 is rubbed or damaged.

前述した実施例では、第１ドアパネル２０および第２ドアパネル２２の開放規制を図るために、第１ヒンジ部３６の第１支持長Ｌ１および第２ヒンジ部４０の第２支持長Ｌ２の長さを夫々設定する場合を例示したが、この開放規制は長さの設定に限定されるものではない。例えば、第１ヒンジ部３６および第２ヒンジ部４０の形状変更や変形規制部の追加形成等により、両ヒンジ部３６,４０の変形難易度に差を付けるようにすることで、第１ドアパネル２０および第２ドアパネル２２の開放規制を図ることができる。   In the embodiment described above, in order to restrict the opening of the first door panel 20 and the second door panel 22, the lengths of the first support length L1 of the first hinge portion 36 and the second support length L2 of the second hinge portion 40 are set. Although the case where each is set is illustrated, this opening restriction is not limited to the length setting. For example, by changing the shape of the first hinge part 36 and the second hinge part 40, or by additionally forming a deformation restricting part, the first door panel 20 is made different in the degree of deformation difficulty of the hinge parts 36, 40. And the opening regulation of the 2nd door panel 22 can be aimed at.

また前述した実施例では、第１ヒンジ部３６および第２ヒンジ部４０を形成したインサート部材３０が合成樹脂製である場合を例示したが、このインサート部材３０は金属製であっても同様の効果を得ることができる。   In the above-described embodiment, the case where the insert member 30 on which the first hinge portion 36 and the second hinge portion 40 are formed is made of synthetic resin, but the same effect can be obtained even if the insert member 30 is made of metal. Can be obtained.

更に前述した実施例では、第１ヒンジ部３６および第２ヒンジ部４０をインサート部材３０に設ける場合を例示したが、これらヒンジ部３６,４０は、基材１２に一体的または別体的に設けたものでもよい。   Further, in the above-described embodiment, the case where the first hinge portion 36 and the second hinge portion 40 are provided on the insert member 30 is illustrated, but these hinge portions 36 and 40 are provided integrally or separately on the base member 12. May be good.

更に前述した実施例では、車両内装部材としてインストルメントパネルを例示したが、車両内装部材はこれに限定されるものではない。例えば、サイドエアバッグを内側に設置したドアトリムや、カーテンエアバッグを内側に設置したピラーガーニッシュ等に設けられたエアバッグドアも対象とされる。   Furthermore, although the instrument panel was illustrated as a vehicle interior member in the Example mentioned above, a vehicle interior member is not limited to this. For example, a door trim provided with a side airbag inside, and an airbag door provided in a pillar garnish provided with a curtain airbag inside are also targeted.

本発明に係るエアバッグドアは、内側にエアバッグ装置を設置した車両内装部材に設けられるので、乗用車等の種々の自動車に実施可能である。   Since the airbag door according to the present invention is provided in a vehicle interior member having an airbag device installed therein, it can be implemented in various automobiles such as passenger cars.

本実施例に係るエアバッグドアの構成を示したインストルメントパネルの部分断面図。The fragmentary sectional view of the instrument panel which showed the structure of the airbag door which concerns on a present Example. エアバッグドアの開放態様を示したインストルメントパネルの側断面図。The sectional side view of the instrument panel which showed the open mode of the airbag door. 第１ヒンジ部に支持された第１ドアパネルの開放態様を示した説明断面図。Explanatory sectional drawing which showed the open mode of the 1st door panel supported by the 1st hinge part. 第２ヒンジ部に支持された第２ドアパネルの開放態様を示した説明断面図。Explanatory sectional drawing which showed the open mode of the 2nd door panel supported by the 2nd hinge part. 従来のエアバッグドアの開放態様を示したインストルメントパネルの側断面図。The sectional side view of the instrument panel which showed the opening aspect of the conventional airbag door.

符号の説明Explanation of symbols

１０ インストルメントパネル(車両内装部材)，１４ エアバッグ通過口
１４Ａ 開口端部，２０ 第１ドアパネル，２２ 第２ドアパネル，２４ 破断予定部
３２ 固定支持部，３６ 第１ヒンジ部，４０ 第２ヒンジ部，５０ エアバッグ装置
５２ エアバッグ，Ｌ１ 第１支持長(第１ヒンジ部の)，Ｌ２ 第２支持長(第２ヒンジ部の)
DESCRIPTION OF SYMBOLS 10 Instrument panel (vehicle interior member), 14 Air bag passage opening 14A Open end part, 20 1st door panel, 22 2nd door panel, 24 Fracture part 32 Fixed support part, 36 1st hinge part, 40 2nd hinge part , 50 Airbag device 52 Airbag, L1 first support length (of the first hinge portion), L2 second support length (of the second hinge portion)

Claims (2)

内側にエアバッグ装置(50)を設置した車両内装部材(10)に設けられ、破断予定部(24)をエアバッグ(52)により破断することで、乗員席側への前記エアバッグ(52)の展開方向と異なる方向に第１ヒンジ部(36)を中心として開放する第１ドアパネル(20)および該エアバッグ(52)の展開方向と同じ方向へ第２ヒンジ部(40)を中心として開放する第２ドアパネル(22)を備え、第１ドアパネル(20)および第２ドアパネル(22)の開放により車両内装部材(10)にエアバッグ通過口(14)を形成するエアバッグドアにおいて、
前記第１ヒンジ部(36)は、前記第１ドアパネル(20)の該第１ヒンジ部(36)側に沿って前記車両内装部材(10)に設けた固定支持部(32)と該第１ドアパネル(20)とを弛んだ状態で連結支持する一方、前記エアバッグ(52)の押圧力を受け開放する該第１ドアパネル(20)により伸長状態に変形し、
前記第１ドアパネル(20)は、前記エアバッグ通過口(14)の開口端部(14A)に接触したもとで、伸長状態の前記第１ヒンジ部(36)により、該エアバッグ通過口(14)の上方において前記エアバッグ(52)の展開方向へ傾斜した開放姿勢で支持され、
前記第２ヒンジ部(40)は、前記第２ドアパネル(22)の該第２ヒンジ部(40)側に沿って前記車両内装部材(10)に設けた固定支持部(32)と該第２ドアパネル(22)とを弛んだ状態で連結支持する一方、前記エアバッグ(52)の押圧力を受け開放する該第２ドアパネル(22)により伸長状態に変形して、該第２ドアパネル(22)を該車両内装部材(10)の外面に接触した開放姿勢で支持する
ことを特徴とするエアバッグドア。 Provided in the vehicle interior member (10) with the airbag device (50) installed on the inside, the airbag (52) to the passenger seat side by breaking the scheduled breakage portion (24) with the airbag (52) The first door panel (20) that opens around the first hinge part (36) in the direction different from the deployment direction of the first door panel (20) and the second hinge part (40) opens in the same direction as the deployment direction of the airbag (52) An airbag door having a second door panel (22) configured to form an airbag passage opening (14) in the vehicle interior member (10) by opening the first door panel (20) and the second door panel (22) ;
The first hinge part (36) includes a fixed support part (32) provided on the vehicle interior member (10) along the first hinge part (36) side of the first door panel (20) and the first door panel (20) . While connecting and supporting the door panel (20) in a slack state, the door panel (20) is deformed into an extended state by the first door panel (20) that is opened by receiving the pressing force of the airbag (52),
The first door panel (20) is in contact with the opening end (14A) of the airbag passage opening (14) , and is extended by the first hinge portion (36) so that the airbag passage opening (14 ) Is supported in an open posture inclined in the deployment direction of the airbag (52) ,
The second hinge part (40) includes a fixed support part (32) provided on the vehicle interior member (10) along the second hinge part (40) side of the second door panel (22) and the second door panel (22) . While the door panel (22) is connected and supported in a slack state, the second door panel (22) is deformed into an extended state by the second door panel (22) opened by the pressing force of the airbag (52), and the second door panel (22) the support in the open position in contact with the outer surface of the vehicle interior member (10)
The air bag door, wherein a call. 前記第１ヒンジ部(36)は、前記固定支持部(32)の前記第１ドアパネル(20)側と該第１ドアパネル(20)の該第１ヒンジ部(36)側とを第１支持長(L1)で連結支持し、
前記第２ヒンジ部(40)は、前記固定支持部(32)の前記第２ドアパネル(22)側と該第２ドアパネル(22)の該第２ヒンジ部(40)側とを、前記第１支持長(L1)より長い第２支持長(L2)で連結支持する請求項１記載のエアバッグドア。 Said first hinge portion (36), before Symbol fixed support (32) said first door panel (20) side and the first hinge portion of the first door panel (20) (36) side and the first Connect and support with support length (L1),
It said second hinge portion (40) is pre-Symbol solid second hinge portion of the second door panel (22) side and said second door panel constant support (32) (22) and (40) side, wherein The airbag door according to claim 1, wherein the airbag door is connected and supported by a second support length (L2) longer than the first support length (L1) .
JP2005073551A 2005-03-15 2005-03-15 Airbag door Active JP4614797B2 (en)

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Publication number Priority date Publication date Assignee Title
JP4974933B2 (en) * 2008-03-03 2012-07-11 本田技研工業株式会社 Airbag device
JP5547172B2 (en) * 2008-03-19 2014-07-09 ジョンソン コントロールズ インテリアズ ゲーエムベーハー アンド カンパニー カーゲー Fitting with airbag exit flap
JP2010269610A (en) * 2009-05-19 2010-12-02 Kanto Auto Works Ltd Airbag door structure
JP5408081B2 (en) * 2010-09-06 2014-02-05 トヨタ自動車株式会社 Airbag device for passenger seat

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JPH01204838A (en) * 1988-02-09 1989-08-17 Nissan Motor Co Ltd Air bag device for automobile
JPH09188211A (en) * 1996-01-09 1997-07-22 Toyota Motor Corp Air bag cover for front passenger seat
JPH10129379A (en) * 1996-10-25 1998-05-19 Toyota Motor Corp Airbag device for assistant driver's seat seat
JP2002193061A (en) * 2000-12-25 2002-07-10 Toyota Motor Corp Air bag door structure for front passenger seat
JP2004058965A (en) * 2002-07-31 2004-02-26 Inoac Corp Open structure for air bag door

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01204838A (en) * 1988-02-09 1989-08-17 Nissan Motor Co Ltd Air bag device for automobile
JPH09188211A (en) * 1996-01-09 1997-07-22 Toyota Motor Corp Air bag cover for front passenger seat
JPH10129379A (en) * 1996-10-25 1998-05-19 Toyota Motor Corp Airbag device for assistant driver's seat seat
JP2002193061A (en) * 2000-12-25 2002-07-10 Toyota Motor Corp Air bag door structure for front passenger seat
JP2004058965A (en) * 2002-07-31 2004-02-26 Inoac Corp Open structure for air bag door

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