JP4089550B2 - Head protection airbag device - Google Patents

Head protection airbag device Download PDF

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JP4089550B2
JP4089550B2 JP2003298569A JP2003298569A JP4089550B2 JP 4089550 B2 JP4089550 B2 JP 4089550B2 JP 2003298569 A JP2003298569 A JP 2003298569A JP 2003298569 A JP2003298569 A JP 2003298569A JP 4089550 B2 JP4089550 B2 JP 4089550B2
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airbag
airbag body
vicinity
lower edge
vehicle
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JP2005067344A (en
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雅夫 木野
貴信 池田
直 山本
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Toyoda Gosei Co Ltd
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Description

本発明は、車両の車内側における窓の上縁側に折り畳まれて収納されるとともに、上縁側を車両のボディ側に固定され、膨張用ガスの流入時に下方へ展開膨張するエアバッグを備える構成の頭部保護エアバッグ装置に関する。   The present invention includes an airbag that is folded and housed on the upper edge side of a window on the vehicle interior side and that has an airbag that is fixed on the vehicle body side and that expands and inflates downward when inflating gas flows. The present invention relates to a head protection airbag device.

従来、上記構成の頭部保護エアバッグ装置では、エアバッグを、下縁側を上縁側に接近させるように、折り畳んで収納させていた（例えば、特許文献１参照）。
特開平１１−３２１５２８号公報 Conventionally, in the head protection airbag device having the above-described configuration, the airbag is folded and stored so that the lower edge side approaches the upper edge side (see, for example, Patent Document 1).
JP-A-11-321528

通常、頭部保護エアバッグ装置では、エアバッグは、展開膨張時において、窓と乗員の頭部との間の狭い隙間に展開することとなる。   Usually, in the head protection airbag device, the airbag is deployed in a narrow gap between the window and the occupant's head during deployment.

従来の頭部保護エアバッグ装置では、エアバッグを、前後方向に沿った多数の折目を付けて、下縁側を上縁側に接近させるような蛇腹折りにより、折り畳んでいた。蛇腹折りされたエアバッグでは、エアバッグの上下方向の長さ寸法や折目の間隔等の違いにより、エアバッグの下縁が、車内側に向くように配設される場合と車外側に向くように配設される場合があった。そして、折り畳まれたエアバッグの下縁の向きにより、エアバッグの展開方向がばらつく場合があり、窓と乗員の頭部との間の狭い隙間に円滑に安定して展開させる点に、改善の余地があった。   In the conventional head protection airbag device, the airbag is folded by bellows folding with a number of folds along the front-rear direction and the lower edge side approaching the upper edge side. In a bellows-folded airbag, the lower edge of the airbag is directed to the inside of the vehicle and to the outside of the vehicle due to differences in the length of the airbag in the vertical direction, the crease spacing, and the like. There was a case where it was arranged. And the direction of the lower edge of the folded airbag may cause the airbag deployment direction to vary, and it can be smoothly and stably deployed in a narrow gap between the window and the occupant's head. There was room.

本発明は、上述の課題を解決するものであり、窓と乗員の頭部との間の狭い隙間にも、エアバッグを円滑に安定して展開させることが可能な頭部保護エアバッグ装置を提供することを目的とする。   The present invention solves the above-described problem, and provides a head protection airbag device that can smoothly and stably deploy an airbag in a narrow gap between a window and a passenger's head. The purpose is to provide.

本発明に係る頭部保護エアバッグ装置は、車両の車内側における窓の上縁側に折り畳まれて収納されるとともに、上縁側を車両のボディ側に固定され、膨張用ガスの流入時に下方へ展開膨張するエアバッグを備えて構成され、
エアバッグが、下縁側を上縁側に接近させるように、折り畳まれて収納される構成の頭部保護エアバッグ装置であって、
エアバッグが、膨張用ガスを流入させて展開膨張するエアバッグ本体と、エアバッグ本体の展開膨張時における展開方向を規制する規制部材と、を備えて構成され、
規制部材が、
折り畳まれたエアバッグ本体の車外側において、エアバッグ本体のボディ側への固定部位付近と、エアバッグ本体の下縁付近と、を連結するように配設されるとともに、
エアバッグ本体の膨張初期においてエアバッグ本体の下縁付近を車外側に向けるように牽引し、その後、エアバッグ本体の下縁付近となる位置で、エアバッグ本体におけるボディ側への固定部位付近と下縁付近との連結状態を解除させることにより、エアバッグ本体の下縁側の突出方向を車外側へ規制可能な構成とされていることを特徴とする。 The head protection airbag device according to the present invention is folded and housed on the upper edge side of the window inside the vehicle, and the upper edge side is fixed to the vehicle body side, and is deployed downward when inflating gas flows in. Configured with an inflating airbag,
A head protection airbag device configured to be folded and stored so that the airbag approaches the upper edge side of the lower edge side,
The airbag is configured to include an airbag main body that is inflated by inflating an inflating gas, and a regulating member that regulates a deployment direction at the time of deployment of the airbag main body,
The restriction member
On the vehicle exterior side of the folded airbag body, it is disposed so as to connect the vicinity of the fixing portion to the body side of the airbag body and the vicinity of the lower edge of the airbag body,
At the initial stage of inflation of the airbag body, pulling the vicinity of the lower edge of the airbag body toward the outside of the vehicle, and then at the position near the lower edge of the airbag body, near the fixing portion of the airbag body on the body side By releasing the connection state with the vicinity of the lower edge, the protruding direction on the lower edge side of the airbag body can be restricted to the vehicle outer side.

本発明の頭部保護エアバッグ装置では、折り畳まれたエアバッグ本体の車外側に、エアバッグ本体のボディ側への固定部位付近と、エアバッグ本体の下縁付近と、を連結している規制部材が、配設される構成であり、エアバッグ本体の膨張初期において、エアバッグ本体が展開膨張し始めると、エアバッグ本体の下縁付近が、規制部材により、車外側に向かうように牽引されるような態様となる。その後、規制部材がエアバッグ本体におけるボディ側への固定部位付近と下縁付近との連結状態を解除させて、エアバッグ本体が展開膨張することとなる。   In the head protection airbag device according to the present invention, the restriction that connects the vicinity of the fixed portion of the airbag body to the body side and the vicinity of the lower edge of the airbag body on the outside of the folded airbag body. When the airbag body begins to expand and inflate in the initial stage of inflation of the airbag body, the vicinity of the lower edge of the airbag body is pulled toward the outside of the vehicle by the regulating member. It becomes such a mode. Thereafter, the restricting member releases the connection state between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge, and the airbag body is deployed and inflated.

すなわち、本発明の頭部保護エアバッグ装置では、エアバッグ本体は、膨張初期において、規制部材の連結が解除されるまで、下縁付近が規制部材により車外側に引っ張られることから、規制部材によりエアバッグ本体におけるボディ側への固定部位付近と下縁付近との連結状態が解除された後でも、折り畳まれたエアバッグ本体の下縁側の向きにかかわらず、下縁側を車外側に向けるように、展開方向を安定させて、展開膨張することが可能となる。その結果、窓と乗員の頭部との間の隙間が狭くとも、エアバッグ本体は、この隙間に入り込むように、円滑に展開膨張することとなる。
また、本発明の頭部保護エアバッグ装置では、規制部材が、エアバッグ本体の下縁付近となる位置で、エアバッグ本体におけるボディ側への固定部位付近と下縁付近との連結状態を解除させる構成であることから、連結状態解除後の規制部材におけるエアバッグ本体の上縁側に配設される部位が、規制部材を上下方向の中間部位となる位置で破断させる構成とする場合と比較して、上下方向の長さ寸法を大きく設定されることとなる。そのため、エアバッグ本体の展開膨張時において、エアバッグ本体におけるボディ側への固定部位付近を、規制部材により広く覆うことができることから、展開膨張するエアバッグ本体が、インナパネル等の車両のボディ側の部材と干渉することを防止できる。 That is, in the head protection airbag device of the present invention, the airbag body is pulled by the regulating member near the lower edge until the connection of the regulating member is released at the initial stage of inflation. Even after the connection between the fixed part on the body side of the airbag body and the vicinity of the lower edge is released, the lower edge side should face the outside of the vehicle regardless of the orientation of the lower edge side of the folded airbag body. The deployment direction can be stabilized and deployed and expanded. As a result, even if the gap between the window and the occupant's head is narrow, the airbag body is smoothly deployed and inflated so as to enter the gap.
Further, in the head protection airbag device of the present invention, the restricting member releases the connection state between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge at the position near the lower edge of the airbag body. Compared with the case where the part disposed on the upper edge side of the airbag body in the restricting member after the connected state is released is configured to break the restricting member at a position that is an intermediate part in the vertical direction. Thus, the length in the vertical direction is set large. For this reason, when the airbag body is deployed and inflated, the vicinity of the fixed portion of the airbag body on the body side can be widely covered with the regulating member. Interference with the member can be prevented.

従って、本発明の頭部保護エアバッグ装置では、窓と乗員の頭部との間の狭い隙間にも、エアバッグを円滑に安定して展開させることができる。   Therefore, in the head protection airbag device of the present invention, the airbag can be smoothly and stably deployed even in a narrow gap between the window and the occupant's head.

また、上記構成の頭部保護エアバッグ装置において、規制部材が、前記エアバッグ本体における乗員保護エリアとなる位置に、配設されている構成とすることが好ましい。   Moreover, in the head protection airbag device having the above-described configuration, it is preferable that the restriction member is disposed at a position serving as an occupant protection area in the airbag body.

頭部保護エアバッグ装置を上記構成とすれば、展開膨張時において、エアバッグ本体における乗員保護エリアの部位の突出方向を、規制部材により的確に規制することができる。そのため、エアバッグ本体における乗員保護エリアの部位を、窓と乗員の頭部との間の狭い隙間に、確実に、展開膨張させることができる。   If the head protection airbag device is configured as described above, the protruding direction of the portion of the passenger protection area in the airbag body can be accurately regulated by the regulating member during deployment and inflation. Therefore, the portion of the occupant protection area in the airbag main body can be reliably deployed and inflated in a narrow gap between the window and the occupant's head.

頭部保護エアバッグ装置として、エアバッグが、膨張用ガスを流入させて展開膨張するエアバッグ本体と、エアバッグ本体の展開膨張時における展開方向を規制する規制部材と、折り畳まれたエアバッグ本体の車内側を覆うカバー部材と、を備えて構成され、As a head protection airbag device, an airbag body in which an airbag is inflated and inflated by introducing an inflation gas, a regulating member that regulates a deployment direction when the airbag body is deployed and inflated, and a folded airbag body A cover member that covers the inside of the vehicle,
規制部材が、  The restriction member
折り畳まれたエアバッグ本体の車外側において、エアバッグ本体のボディ側への固定部位付近と、エアバッグ本体の下縁付近と、を連結するように配設されるとともに、  On the vehicle exterior side of the folded airbag body, it is disposed so as to connect the vicinity of the fixing portion to the body side of the airbag body and the vicinity of the lower edge of the airbag body,
エアバッグ本体の膨張初期においてエアバッグ本体の下縁付近を車外側に向けるように牽引し、その後、エアバッグ本体におけるボディ側への固定部位付近と下縁付近との連結状態を解除させることにより、エアバッグ本体の下縁側の突出方向を車外側へ規制可能な構成とされ、  By pulling the vicinity of the lower edge of the airbag body toward the outside of the vehicle in the initial stage of inflation of the airbag body, and then releasing the connection between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge The protruding direction on the lower edge side of the airbag body can be restricted to the outside of the vehicle,
カバー部材が、  The cover member
エアバッグ本体のボディ側への固定部位付近と、エアバッグ本体の下縁付近と、を連結するように配設されるとともに、  While being arranged so as to connect the vicinity of the fixing part to the body side of the airbag body and the vicinity of the lower edge of the airbag body,
エアバッグ本体におけるボディ側への固定部位付近と下縁付近との連結状態が、エアバッグ本体の展開膨張時において、規制部材におけるエアバッグ本体のボディ側への固定部位付近と下縁付近との連結状態よりも、先に、解除可能に設定される構成としてもよい。  When the airbag body is deployed and inflated, the connected state between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge is determined by It is good also as a structure set so that cancellation | release is possible before a connection state.

頭部保護エアバッグ装置を上記構成とすれば、折り畳まれたエアバッグ本体が、車外側を規制部材により覆われるとともに、車内側をカバー部材により覆われることから、規制部材とカバー部材とを、エアバッグ本体の折り畳み形状を維持させるためのラッピング材としても、使用することができる。また、上記構成の頭部保護エアバッグ装置では、エアバッグ本体のボディ側への固定部位付近と下縁付近との連結を解除させた後のカバー部材により、展開膨張するエアバッグ本体が、エアバッグカバー等の車内側に配設される部材と直接接触することも防止できる。さらに、上記構成の頭部保護エアバッグ装置では、カバー部材は、規制部材よりも先に、エアバッグ本体のボディ側への固定部位付近と下縁付近との連結状態を解除されることから、カバー部材を設けても、エアバッグ本体の膨張初期に、下縁付近が規制部材により車外側に引っ張られることとなり、エアバッグ本体の展開方向を規制可能である。   If the head protection airbag device is configured as described above, the folded airbag body is covered with the restriction member on the outside of the vehicle and covered with the cover member, so that the restriction member and the cover member are It can also be used as a wrapping material for maintaining the folded shape of the airbag body. In the head protection airbag device having the above-described configuration, the airbag body that is deployed and inflated by the cover member after the connection between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge is released. Direct contact with members disposed inside the vehicle such as a bag cover can also be prevented. Furthermore, in the head protection airbag device having the above configuration, the cover member is released from the connected state between the vicinity of the fixed portion and the vicinity of the lower edge on the body side of the airbag body, before the regulating member. Even when the cover member is provided, the vicinity of the lower edge is pulled to the outside of the vehicle by the regulating member in the initial stage of inflation of the airbag body, and the deployment direction of the airbag body can be regulated.

以下、本発明の一実施形態を図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

実施形態の頭部保護エアバッグ装置Ｍは、図１・２に示すように、エアバッグ１０、インフレーター３７、取付ブラケット３５・３８、及び、エアバッグカバー８を、備えて構成されている。エアバッグ１０は、車両Ｖの車内側における窓Ｗ（Ｗ１・Ｗ２）の上縁側において、フロントピラー部ＦＰの下縁側から、ルーフサイドレール部ＲＲの下縁側を経て、リヤピラー部ＲＰの上方側までの範囲に、折り畳まれて収納されている。なお、この車両Ｖは、フロントピラー部ＦＰとリヤピラー部ＲＰとの間に、略上下方向に沿うセンターピラー部ＣＰを配設させて構成されている。   As shown in FIGS. 1 and 2, the head protecting airbag device M according to the embodiment includes an airbag 10, an inflator 37, mounting brackets 35 and 38, and an airbag cover 8. The airbag 10 extends from the lower edge side of the front pillar portion FP to the upper side of the rear pillar portion RP from the lower edge side of the front pillar portion FP on the upper edge side of the window W (W1, W2) inside the vehicle V. It is folded and stored in the range. The vehicle V is configured by disposing a center pillar portion CP substantially along the vertical direction between the front pillar portion FP and the rear pillar portion RP.

インフレーター３７は、図１に示すように、略円柱状のシリンダタイプとして、エアバッグ１０の後述するエアバッグ本体１１に形成される接続口部２０が外装され、クランプ４０を利用して、エアバッグ本体１１と連結されている。そして、インフレーター３７は、取付ブラケット３８を利用して、車両Ｖのボディ１側であるインナパネル２において、センターピラー部ＣＰの上方付近におけるルーフサイドレール部ＲＲの部位に、ルーフヘッドライニング５の下縁５ａに覆われて、取付固定されている。また、取付ブラケット３８は、板金製として、インフレーター３７を保持し、取付ボルト３９を利用して、インナパネル２に固定されている。   As shown in FIG. 1, the inflator 37 is a substantially cylindrical cylinder type, and has a connection port portion 20 formed in an airbag main body 11 to be described later of the airbag 10. The main body 11 is connected. Then, the inflator 37 uses the mounting bracket 38 in the inner panel 2 that is on the body 1 side of the vehicle V, at the position of the roof side rail portion RR near the upper portion of the center pillar portion CP, under the roof head lining 5. Covered and fixed by the edge 5a. The mounting bracket 38 is made of sheet metal, holds the inflator 37, and is fixed to the inner panel 2 using mounting bolts 39.

各取付ブラケット３５は、２枚の板金製のプレートから構成され（図２・５〜７参照）、エアバッグ本体１１の後述する各取付部２４を挟むように、各取付部２４に取り付けられ、取付ボルト３６によって、各取付部２４をボディ１側のインナパネル２に取付固定している。また、実施形態の場合、エアバッグ１０の後述する規制部材２９も、上端２９ａ付近に形成される取付部３０を、各取付部２４とともに、取付ブラケット３５とボルト３６とを利用して、ボディ１側のインナパネル２に固定されることとなる。なお、各取付ボルト３６は、ナット２ｂを設けてインナパネル２に形成された取付孔２ａに、締結される。   Each mounting bracket 35 is composed of two sheet metal plates (see FIGS. 2 to 7), and is attached to each mounting portion 24 so as to sandwich each mounting portion 24 described later of the airbag body 11, Each mounting portion 24 is fixedly mounted on the inner panel 2 on the body 1 side by mounting bolts 36. Further, in the case of the embodiment, the regulating member 29 described later of the airbag 10 also uses the mounting bracket 30 and the bolt 36 together with the mounting portion 30 formed in the vicinity of the upper end 29a together with the mounting portion 35 and the body 1. It will be fixed to the inner panel 2 on the side. Each mounting bolt 36 is fastened to a mounting hole 2a formed in the inner panel 2 by providing a nut 2b.

エアバッグカバー８は、フロントピラー部ＦＰに配置されるピラーガーニッシュ４とルーフサイドレール部ＲＲに配置されるルーフヘッドライニング５とのそれぞれの下縁４ａ・５ａ側から構成されている。なお、フロントピラーガーニッシュ４とルーフヘッドライニング５とは、合成樹脂製とし、フロントピラー部ＦＰとルーフサイドレール部ＲＲにおいて、ボディ１側のインナパネル２における車内側に、取付固定されている。また、ルーフヘッドライニング５は、フロントピラー部ＦＰの上方付近から、センターピラー部ＣＰの上方を経て、リヤピラー部ＲＰの上方付近まで、配設されている。   The airbag cover 8 is configured from the lower edges 4a and 5a of the pillar garnish 4 disposed in the front pillar portion FP and the roof head lining 5 disposed in the roof side rail portion RR. The front pillar garnish 4 and the roof head lining 5 are made of synthetic resin, and are fixedly attached to the inner side of the inner panel 2 on the body 1 side in the front pillar portion FP and the roof side rail portion RR. Further, the roof head lining 5 is disposed from the vicinity above the front pillar portion FP to the vicinity above the rear pillar portion RP via the center pillar portion CP.

エアバッグ１０は、エアバッグ本体１１と、エアバッグ本体１１の展開膨張時における展開方向を規制する規制部材２９と、を備えて構成されている。エアバッグ本体１１は、ポリアミド糸等を使用した袋織りにより製造されて、図３の二点鎖線に示すように、インフレーター３７からの膨張用ガスＧを流入させ、折り畳み状態から展開して、窓Ｗ（Ｗ１・Ｗ２）やセンターピラー部ＣＰ・リヤピラー部ＲＰのピラーガーニッシュ６・７の車内側を覆うように、展開膨張する。エアバッグ本体１１は、膨張用ガスＧの流入時に車内側壁部１３ａと車外側壁部１３ｂとを離すように膨らむガス流入部１３と、車内側壁部１３ａと車外側壁部１３ｂとを結合させるように形成されて膨張用ガスＧを流入させない非流入部２２と、を備えて構成されている。   The airbag 10 includes an airbag body 11 and a regulating member 29 that regulates the deployment direction when the airbag body 11 is deployed and inflated. The airbag main body 11 is manufactured by bag weaving using polyamide yarn or the like, and as shown by a two-dot chain line in FIG. 3, the inflation gas G from the inflator 37 is flowed in and expanded from the folded state, It expands and expands so as to cover the inner side of the pillar garnishes 6 and 7 of W (W1 and W2), the center pillar part CP, and the rear pillar part RP. The airbag main body 11 is configured to connect the gas inflow portion 13 that inflates so as to separate the vehicle inner side wall portion 13a and the vehicle outer side wall portion 13b when the inflation gas G flows in, and the vehicle inner side wall portion 13a and the vehicle outer side wall portion 13b. And a non-inflow portion 22 that does not allow the expansion gas G to flow in.

ガス流入部１３は、実施形態の場合、ガス供給路部１４、前席用流入部１５、後席用流入部１６、及び、連通流入部１９、から構成されている。ガス供給路部１４は、エアバッグ本体１１の上縁１１ａ側で車両Ｖの前後方向に沿って、直線状に配設されている。ガス供給路部１４の前後方向の略中間部位には、上方へ延びて、インフレーターからの膨張用ガスＧをガス流入部１３内に流入可能に、接続口部２０が、形成されている。ガス供給路部１４では、接続口部２０から膨張用ガスＧが流入すると、膨張用ガスＧは、車両Ｖの前後方向両側に向かうように、流れることとなる。   In the embodiment, the gas inflow portion 13 includes a gas supply path portion 14, a front seat inflow portion 15, a rear seat inflow portion 16, and a communication inflow portion 19. The gas supply path portion 14 is arranged in a straight line along the front-rear direction of the vehicle V on the upper edge 11 a side of the airbag body 11. A connecting port portion 20 is formed at a substantially intermediate portion in the front-rear direction of the gas supply passage portion 14 so as to extend upward and allow the inflation gas G from the inflator to flow into the gas inflow portion 13. In the gas supply path portion 14, when the expansion gas G flows from the connection port portion 20, the expansion gas G flows toward the both sides in the front-rear direction of the vehicle V.

前席用流入部１５は、ガス供給路部１４の前部側の下方に配置され、エアバッグ本体１１の展開膨張時、車両Ｖの前席の側方に配置されて、前席側方の窓Ｗ１を覆うように膨張することとなる。後席用流入部１６は、ガス供給路部１４の後部側の下方に配置され、エアバッグ本体１１の展開膨張時、車両Ｖの後席の側方に配置されて、後席側方の窓Ｗ２を覆うこととなる。すなわち、前席用流入部１５・後席用流入部１６は、それぞれ、前席・後席に着座した乗員の頭部を保護するための乗員保護エリアを構成することとなる。   The front seat inflow portion 15 is disposed below the front portion of the gas supply passage portion 14, and is disposed on the side of the front seat of the vehicle V when the airbag body 11 is deployed and inflated. It will expand to cover the window W1. The rear seat inflow portion 16 is disposed below the rear side of the gas supply passage portion 14 and is disposed on the side of the rear seat of the vehicle V when the airbag body 11 is deployed and inflated. W2 will be covered. That is, the front seat inflow part 15 and the rear seat inflow part 16 constitute an occupant protection area for protecting the head of the occupant seated in the front seat and the rear seat, respectively.

連通流入部１９は、前席用流入部１５の後端下部と後席用流入部１６の前端下部とを連通するように、後述する板状部２７（長方形板状部２７ｃ）の下方側におけるエアバッグ本体１１の下縁１１ｂ側で、下縁１１ｂに沿って前後方向に配置されている。   The communication inflow portion 19 is provided on the lower side of a plate-like portion 27 (rectangular plate-like portion 27c), which will be described later, so that the rear lower end portion of the front seat inflow portion 15 communicates with the lower front end portion of the rear seat inflow portion 16. On the lower edge 11b side of the airbag body 11, it is arranged in the front-rear direction along the lower edge 11b.

前席用・後席用流入部１５・１６は、それぞれ、後述する区画部２５で区画されて、上下方向に棒状に延びるように膨張して、車両の前後方向に並設される複数の縦膨張部１７から、構成されている。各縦膨張部１７は、上端側をガス供給路部１４に連通されて、ガス供給路部１４から膨張用ガスＧを流入可能な構成とされている。実施形態の場合、前席用流入部１５には、５つの縦膨張部１７が並設され、後席用流入部１６には、３つの縦膨張部１７が並設されている。そして、前席用流入部１５の後端側に配設される縦膨張部１７Ａ・１７Ｂと、後席用流入部１６の前端側に配設される縦膨張部１７Ｃと、は、下端側を、連通流入部１９に連通されている。   Each of the front seat and rear seat inflow portions 15 and 16 is partitioned by a partition portion 25 described later, expands so as to extend in a bar shape in the vertical direction, and is arranged in parallel in the longitudinal direction of the vehicle. The inflating portion 17 is configured. Each vertical expansion portion 17 is configured such that the upper end side is communicated with the gas supply path portion 14 and the expansion gas G can flow from the gas supply path portion 14. In the case of the embodiment, the front seat inflow portion 15 is provided with five vertical expansion portions 17 in parallel, and the rear seat inflow portion 16 is provided with three vertical expansion portions 17 in parallel. The vertical expansion portions 17A and 17B disposed on the rear end side of the front seat inflow portion 15 and the vertical expansion portion 17C disposed on the front end side of the rear seat inflow portion 16 have a lower end side. The communication inflow portion 19 is communicated.

非流入部２２は、周縁部２３、取付部２４、区画部２５、及び、板状部２７、を備えて構成されている。周縁部２３は、ガス流入部１３の周囲を囲むように、形成されている。   The non-inflow portion 22 includes a peripheral edge portion 23, a mounting portion 24, a partition portion 25, and a plate-like portion 27. The peripheral edge portion 23 is formed so as to surround the periphery of the gas inflow portion 13.

取付部２４は、エアバッグ本体１１の上縁１１ａ側における周縁部２３や板状部２７（三角板状部２７ａ・２７ｂ）から上方へ突出するように、複数（実施形態では６個）配置されて、インナパネル２に取り付けるための取付ブラケット３５が固着されることとなる（図２参照）。各取付部２４には、取付ボルト３６を挿通させる取付孔２４ａが、開口されている。   A plurality (6 in the embodiment) of the attachment portions 24 are arranged so as to protrude upward from the peripheral edge portion 23 and the plate-like portion 27 (triangular plate-like portions 27a and 27b) on the upper edge 11a side of the airbag body 11. The mounting bracket 35 for mounting to the inner panel 2 is fixed (see FIG. 2). Each attachment portion 24 has an attachment hole 24a through which the attachment bolt 36 is inserted.

板状部２７は、エアバッグ本体１１の前端側と後端側とに配置される三角板状部２７ａ・２７ｂと、前後の前席用流入部１５と後席用流入部１６との間におけるガス供給路部１４と連通流入部１９との間に配置される長方形板状部２７ｃと、から構成されている。板状部２７は、エアバッグ本体１１の全体形状を確保するとともに、ガス流入部１３の容積を小さくして、膨張完了までの時間を短くするために設定されている。なお、前方側の三角板状部２７ａは、周縁部２３の前縁側から前方に突出するように配設され、後方側の三角板状部２７ｂは、周縁部２３の後縁側から後方に突出するように配設されている。また、実施形態の場合、三角板状部２７ａは、縫合されて、前席用流入部１５の前端に結合されている。   The plate-like portion 27 is a gas between the triangular plate-like portions 27 a and 27 b disposed on the front end side and the rear end side of the airbag body 11, and the front seat inflow portion 15 and the rear seat inflow portion 16. The rectangular plate-shaped part 27c arrange | positioned between the supply path part 14 and the communication inflow part 19 is comprised. The plate-like portion 27 is set in order to secure the overall shape of the airbag body 11 and to reduce the volume of the gas inflow portion 13 to shorten the time until completion of the inflation. The front triangular plate-like portion 27a is disposed so as to protrude forward from the front edge side of the peripheral edge portion 23, and the rear triangular plate-like portion 27b is protruded rearward from the rear edge side of the peripheral edge portion 23. It is arranged. Further, in the case of the embodiment, the triangular plate-like portion 27 a is stitched and coupled to the front end of the front seat inflow portion 15.

区画部２５は、それぞれ、各前席用・後席用流入部１５・１６の領域内に配置されて、前席用・後席用流入部１５・１６を各縦膨張部１７に区画している。これらの区画部２５は、エアバッグ本体１１の厚さを規制して、エアバッグ本体１１を板状に膨張させるように、配設されている。なお、区画部２５で区画された各縦膨張部１７は、膨張時に、エアバッグ本体１１の前後方向の長さを短くして、膨張完了時のエアバッグ本体１１の下縁１１ｂ側に、前後方向のテンションを生じさせることとなる。   The partition portions 25 are respectively disposed in the areas of the front seat and rear seat inflow portions 15 and 16, and divide the front seat and rear seat inflow portions 15 and 16 into the vertical expansion portions 17. Yes. These partition portions 25 are disposed so as to regulate the thickness of the airbag body 11 and inflate the airbag body 11 in a plate shape. Each of the vertical inflating portions 17 partitioned by the partitioning portion 25 shortens the length of the airbag body 11 in the front-rear direction when inflated, and moves the front and rear to the lower edge 11b side of the airbag body 11 when the inflation is completed. This creates a directional tension.

規制部材２９は、実施形態の場合、ポリアミド糸等を使用した織布から、形成されており、図２に示すように、折り畳まれたエアバッグ本体１１の車外側Ｏを覆うように、配設されている。そして、実施形態の場合、規制部材２９は、前席用・後席用流入部１５・１６の領域となる２箇所に、それぞれ、配設されている（図３・４参照）。各規制部材２９の上端２９ａ側には、エアバッグ本体１１の取付部２４に対応して、取付部３０が、配設されている。各取付部３０には、取付ボルト３６を挿通させる取付孔３０ａが、開口されている。そして、各規制部材２９は、上端２９ａ側に配設される取付部３０を、エアバッグ本体１１における取付部２４とともに、取付ブラケット３５とボルト３６とを利用して、ボディ１側のインナパネル２に固定されている。また、各規制部材２９の上端２９ａ側には、規制部材２９の上端２９ａ付近を、縫合糸を利用して、折り畳まれたエアバッグ本体１１の上縁１１ａ側に結合させる縫合部位３３が、配設されている。縫合部位３３は、前後方向に沿った直線状に、形成されている。さらに、各規制部材２９の下端２９ｂ側には、規制部材２９の下端２９ｂ付近を、縫合糸Ｔを利用して、折り畳まれたエアバッグ本体１１の下縁１１ｂ側に結合させる縫合部位３４が、配設されている。縫合部位３４は、実施形態の場合、前後方向に沿った直線状に、形成されている。   In the case of the embodiment, the regulating member 29 is formed from a woven fabric using polyamide yarn or the like, and is disposed so as to cover the vehicle outer side O of the folded airbag body 11 as shown in FIG. Has been. In the case of the embodiment, the restricting member 29 is disposed at two locations which are regions of the front seat / rear seat inflow portions 15 and 16 (see FIGS. 3 and 4). An attachment portion 30 is disposed on the upper end 29 a side of each regulating member 29 corresponding to the attachment portion 24 of the airbag body 11. Each attachment portion 30 has an attachment hole 30a through which the attachment bolt 36 is inserted. Each regulating member 29 uses the mounting bracket 30 and the bolt 36 together with the mounting portion 30 disposed on the upper end 29a side, together with the mounting portion 24 in the airbag main body 11, and the inner panel 2 on the body 1 side. It is fixed to. In addition, on the upper end 29a side of each regulating member 29, a suture site 33 is provided for joining the vicinity of the upper end 29a of the regulating member 29 to the upper edge 11a side of the folded airbag body 11 using a suture thread. It is installed. The suture part 33 is formed in a straight line shape along the front-rear direction. Further, on the lower end 29b side of each regulating member 29, there is a stitching portion 34 that connects the vicinity of the lower end 29b of the regulating member 29 to the lower edge 11b side of the folded airbag body 11 using the suture T. It is arranged. In the case of the embodiment, the suture site 34 is formed in a straight line shape along the front-rear direction.

すなわち、各規制部材２９は、上端２９ａ側を、縫合糸Ｔを利用してエアバッグ本体１１の上縁１１ａ近傍の周縁部２３の部位に縫着させ、かつ、取付部２４とともにインナパネル２に固定され、下端２９ｂ側を、縫合糸Ｔを利用して、折り畳まれたエアバッグ本体１１の下縁１１ｂ近傍の周縁部２３の部位に縫着させることにより、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近とを連結する構成である。   That is, each regulating member 29 has its upper end 29 a side sewn to the peripheral portion 23 in the vicinity of the upper edge 11 a of the airbag body 11 using the suture T, and is attached to the inner panel 2 together with the mounting portion 24. By fixing the lower end 29b side to the peripheral edge portion 23 in the vicinity of the lower edge 11b of the airbag body 11 using the suture T, the vicinity of the attachment portion 24 in the airbag body 11 is secured. And the vicinity of the lower edge 11b.

また、各規制部材２９における下端２９ｂ付近には、縫合部位３４近傍の上方となる位置に、エアバッグ本体１１の展開膨張途中において破断可能なスリット３１を備えてなる連結解除部３２が、前後方向に沿った略全長にわたって、ミシン目状に配設されている（図４参照）。実施形態の場合、エアバッグ本体１１の膨張初期においてこのスリット３１・３１間の部位が破断することにより、規制部材２９が、上端２９ａ側（取付部３０側）の部位と、下端２９ｂ側（縫合部位３４側）の部位と、に分断されて、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態が解除されることとなる。そして、連結解除部３２（スリット３１）は、実施形態の場合、エアバッグ本体１１の膨張初期において、下端２９ｂをエアバッグ本体１１の下縁１１ｂ付近に連結された規制部材２９によってエアバッグ本体１１の下縁１１ｂを車外側Ｏに向かって牽引可能とし、かつ、エアバッグ本体１１の展開膨張途中において、破断可能な強度に設定されている。   Further, in the vicinity of the lower end 29b of each regulating member 29, a connection releasing portion 32 provided with a slit 31 that can be broken in the middle of deployment and inflation of the airbag body 11 is provided at a position above the vicinity of the sutured portion 34. Are arranged in a perforated shape over substantially the entire length (see FIG. 4). In the case of the embodiment, when the portion between the slits 31 and 31 is broken in the initial stage of inflation of the airbag body 11, the regulating member 29 has a portion on the upper end 29 a side (attachment portion 30 side) and a lower end 29 b side (suture). And the connection state between the vicinity of the attachment portion 24 and the vicinity of the lower edge 11b in the airbag main body 11 is released. In the embodiment, the connection release portion 32 (slit 31) is configured such that the lower end 29b is connected to the vicinity of the lower edge 11b of the airbag body 11 by the regulating member 29 in the early stage of inflation of the airbag body 11. The lower edge 11b can be pulled toward the vehicle outer side O, and the strength is set such that the airbag body 11 can be broken in the middle of deployment.

また、各規制部材２９は、上下方向の幅寸法を、実施形態の場合、図７に示すごとく、エアバッグ本体１１の膨張完了時において、エアバッグ本体１１の車外側Ｏに配設されるインナパネル２の車内側Ｉを覆い可能な幅寸法に設定されており、エアバッグ本体１１の折り畳み収納時には、図２に示すように、エアバッグ本体１１の車外側Ｏで折り畳まれている。   In addition, in the embodiment, each regulating member 29 has an inner width disposed on the outer side O of the airbag body 11 when the airbag body 11 is completely inflated, as shown in FIG. The width of the panel 2 is set so as to cover the vehicle interior I. When the airbag body 11 is folded and stored, it is folded at the vehicle exterior O of the airbag body 11 as shown in FIG.

次に、実施形態の頭部保護エアバッグ装置Ｍの車両Ｖへの搭載について説明する。まず、エアバッグ本体１１の車両搭載時における車外側となる位置に、上端側２９ａの取付部３０をエアバッグ本体１１の取付部２４に対応させるようにして、規制部材２９を配置させ、縫合部位３３となる部位を、縫合糸Ｔを利用して、エアバッグ本体１１の上縁１１ａ側となる周縁部２３の部位に縫着させる。その後、エアバッグ本体１１を、前後方向に沿った折目Ｃ（図４の一点鎖線参照）を付けて、下縁１１ｂ側を上縁１１ａ側に接近させるように、蛇腹折りする。そして、規制部材２９を、折り畳まれたエアバッグ１１本体の車外側で折り畳み、縫合部位３４となる部位を、縫合糸Ｔを利用して、エアバッグ本体１１の下縁１１ｂ側となる周縁部２３の部位に縫着させる。   Next, mounting of the head protection airbag device M of the embodiment on the vehicle V will be described. First, the regulating member 29 is arranged at a position on the outside of the vehicle when the airbag main body 11 is mounted so that the attachment portion 30 on the upper end side 29a corresponds to the attachment portion 24 of the airbag main body 11, and a suture site The part 33 is sewn to the part of the peripheral edge 23 on the upper edge 11a side of the airbag body 11 by using the suture thread T. Thereafter, the airbag main body 11 is accordion-folded with a crease C (refer to a one-dot chain line in FIG. 4) along the front-rear direction so that the lower edge 11b side approaches the upper edge 11a side. Then, the regulating member 29 is folded on the vehicle exterior side of the folded airbag 11 main body, and a portion that becomes the stitched portion 34 is used on the lower edge 11b side of the airbag main body 11 by using the suture thread T. Sewing to the part of.

その後、折り崩れ防止用の破断可能な図示しないラッピング材により、折り畳んだエアバッグ本体１１と規制部材２９との所定箇所をくるむとともに、取付部２４・３１の周囲に取付ブラケット３５を取り付ける。また、クランプ４０を利用して、エアバッグ本体１１の接続口部２０にインフレーター３７を取り付け、インフレーター３７の周囲に取付ブラケット３８を取り付けて、エアバッグ組付体を形成する。   Thereafter, a predetermined portion between the folded airbag body 11 and the regulating member 29 is wrapped with a ruptureable wrapping material (not shown) for preventing collapse, and the mounting bracket 35 is mounted around the mounting portions 24 and 31. Further, by using the clamp 40, the inflator 37 is attached to the connection port portion 20 of the airbag body 11, and the attachment bracket 38 is attached around the inflator 37 to form the airbag assembly.

その後、各取付ブラケット３５・３８をボディ１側のインナパネル２の所定箇所に配置させてボルト３６・３９止めし、各取付ブラケット３５・３８をインナパネル２に固定して、エアバッグ組付体をボディ１に取り付ける。次いで、インフレーター３７に、所定のインフレーター作動用の制御装置から延びる図示しないリード線を結線し、フロントピラーガーニッシュ４やルーフヘッドライニング５をボディ１に取り付け、さらに、リヤピラーガーニッシュ６・センターピラーガーニッシュ７をボディ１に取り付ければ、エアバッグ装置Ｍが、車両Ｖに搭載されることとなる。   Thereafter, the mounting brackets 35 and 38 are arranged at predetermined positions on the inner panel 2 on the body 1 side and fastened with bolts 36 and 39, and the mounting brackets 35 and 38 are fixed to the inner panel 2 so that the airbag assembly is provided. Is attached to the body 1. Next, lead wires (not shown) extending from a predetermined control device for operating the inflator are connected to the inflator 37, the front pillar garnish 4 and the roof head lining 5 are attached to the body 1, and the rear pillar garnish 6 and the center pillar garnish 7 are further attached. If attached to the body 1, the airbag device M is mounted on the vehicle V.

エアバッグ装置Ｍの車両Ｖへの搭載後、インフレーター３７が作動されれば、インフレーター３７からの膨張用ガスＧが、接続口部２０からガス供給路部１４に流入することとなる。さらに、膨張用ガスＧは、前席用・後席用流入部１５・１６の各縦膨張部１７に流れて、エアバッグ本体１１が、折りを解消させつつ、膨張し始めることとなる、そして、エアバッグ本体１１は、図示しないラッピング材を破断させ、フロントピラーガーニッシュ４やルーフヘッドライニング５の下縁４ａ・５ａ側のエアバッグカバー８を押し開いて、図１の二点鎖線に示すように、下方へ突出しつつ、窓Ｗ１・Ｗ２・センターピラー部ＣＰ・リヤピラー部ＲＰの車内側Ｉを覆うように、大きく展開膨張することとなる。   If the inflator 37 is operated after the airbag device M is mounted on the vehicle V, the inflation gas G from the inflator 37 flows into the gas supply path portion 14 from the connection port portion 20. Further, the inflating gas G flows to the longitudinal inflating portions 17 of the front seat / rear seat inflow portions 15 and 16, and the airbag body 11 starts to inflate while canceling the folding. The airbag main body 11 breaks a wrapping material (not shown) and pushes open the airbag cover 8 on the lower edges 4a and 5a side of the front pillar garnish 4 and the roof head lining 5, as shown by a two-dot chain line in FIG. In addition, while projecting downward, it expands and expands greatly so as to cover the vehicle interior I of the windows W1, W2, the center pillar portion CP, and the rear pillar portion RP.

そして、実施形態の頭部保護エアバッグ装置Ｍでは、折り畳まれたエアバッグ本体１１の車外側Ｏに、エアバッグ本体１１の取付部２４（ボディ１側への固定部位）付近と、エアバッグ本体１１の下縁１１ｂ付近と、を連結している規制部材２９が、配設される構成であり、エアバッグ本体１１の膨張初期において、エアバッグ本体１１が展開膨張し始めると、エアバッグ本体１１の下縁１１ｂ付近が、規制部材２９により、車外側Ｏに向かうように牽引されるような態様となる（図５参照）。その後、規制部材２９に配設される連結解除部３２が、スリット３１・３１間を破断させることにより、エアバッグ本体１１の取付部２４付近と下縁１１ｂ付近との連結状態を解除させて、エアバッグ本体１１が展開膨張することとなる。   In the head protection airbag device M according to the embodiment, the airbag main body 11 is folded on the vehicle outer side O, near the attachment portion 24 (fixed portion to the body 1 side) of the airbag main body 11, and the airbag main body. 11 is arranged so that the vicinity of the lower edge 11b of the airbag 11 is disposed, and when the airbag body 11 begins to expand and inflate in the early stage of inflation of the airbag body 11, the airbag body 11 The vicinity of the lower edge 11b is pulled by the restriction member 29 toward the vehicle outer side O (see FIG. 5). Thereafter, the connection release portion 32 disposed on the regulating member 29 breaks the slits 31 and 31 to release the connection state between the attachment portion 24 and the lower edge 11b of the airbag body 11, The airbag body 11 is deployed and inflated.

すなわち、実施形態の頭部保護エアバッグ装置Ｍでは、エアバッグ本体１１は、膨張初期において、連結解除部３２がスリット３１・３１間を破断させるまで、下縁１１ｂ付近が規制部材２９により車外側Ｏに引っ張られることから、規制部材２９によりエアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態が解除された後でも、折り畳まれたエアバッグ本体１１の下縁１１ｂ側の向きにかかわらず、下縁１１ｂ側を車外側Ｏに向けるように、展開方向を安定させて、展開膨張することが可能となる（図６参照）。その結果、窓Ｗ１・Ｗ２と乗員の頭部との間の隙間が狭くとも、エアバッグ本体１１は、この隙間に入り込むように、円滑に展開膨張し、膨張を完了させることとなる（図７参照）。   In other words, in the head protection airbag device M of the embodiment, the airbag body 11 has the lower edge 11b near the outside of the vehicle by the regulating member 29 until the connection release portion 32 breaks between the slits 31 and 31 in the initial stage of inflation. Since the connecting member 24 is not connected to the vicinity of the lower edge 11b of the airbag body 11 by the restricting member 29, the orientation of the folded airbag body 11 on the lower edge 11b side is released. Regardless, the expansion direction can be stabilized and expanded so that the lower edge 11b faces the vehicle outer side O (see FIG. 6). As a result, even if the gap between the windows W1 and W2 and the head of the occupant is narrow, the airbag body 11 is smoothly deployed and inflated so as to enter the gap, and the inflation is completed (FIG. 7). reference).

従って、実施形態の頭部保護エアバッグ装置Ｍでは、窓Ｗ１・Ｗ２と乗員の頭部との間の狭い隙間にも、エアバッグ１０を円滑に安定して展開させることができる。   Therefore, in the head protection airbag apparatus M of the embodiment, the airbag 10 can be smoothly and stably deployed even in a narrow gap between the windows W1 and W2 and the occupant's head.

また、実施形態の頭部保護エアバッグ装置Ｍでは、規制部材２９は、エアバッグ本体１１における乗員保護エリアとなる前席用流入部１５と後席用流入部１６とに、配設されている。そのため、展開膨張時において、エアバッグ本体１１における前席用・後席用流入部１５・１６の突出方向を、それぞれ、規制部材２９により的確に規制することができる。その結果、前席用・後席用流入部１５・１６を、それぞれ、窓Ｗ１・Ｗ２と乗員の頭部との間の狭い隙間に、確実に、展開膨張させることができる。勿論、この点を考慮しなければ、規制部材２９を、例えば、長方形板状部２７ｃの領域のみに、配設させる構成としてもよい。なお、実施形態では、規制部材２９を、前席用・後席用流入部１５・１６の領域の２箇所に配設させているが、勿論、規制部材２９を、エアバッグ本体１１におけるガス流入部１３の略全域となる部位に、１つ配設させる構成としてもよい。   Further, in the head protection airbag device M of the embodiment, the regulating member 29 is disposed in the front seat inflow portion 15 and the rear seat inflow portion 16 which are occupant protection areas in the airbag body 11. . Therefore, at the time of deployment and inflation, the protruding directions of the front seat / rear seat inflow portions 15 and 16 in the airbag body 11 can be accurately regulated by the regulating members 29, respectively. As a result, the inflow portions 15 and 16 for the front seat and the rear seat can be reliably deployed and inflated in narrow gaps between the windows W1 and W2 and the head of the occupant, respectively. Of course, if this point is not taken into consideration, the restricting member 29 may be arranged only in the region of the rectangular plate portion 27c, for example. In the embodiment, the restricting member 29 is disposed at two locations in the area of the front seat / rear seat inflow portions 15 and 16. Of course, the restricting member 29 is provided for gas inflow in the airbag body 11. It is good also as a structure arrange | positioned in the site | part used as the substantially whole region of the part 13. FIG.

さらに、実施形態の頭部保護エアバッグ装置Ｍでは、規制部材２９を、下端２９ｂ付近に配設される連結解除部３２のスリット３１・３１間を破断させることにより、エアバッグ本体１１の下縁１１ｂ付近となる位置で、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態が解除可能な構成とされている。すなわち、実施形態のエアバッグ装置Ｍでは、連結解除部３２がスリット３１・３１間を破断させた後の規制部材２９におけるエアバッグ本体１１の上縁１１ａ側に配設される部位２９ｃ（図６・７参照）が、規制部材を上下方向の中間部位となる位置で破断させる構成とする場合と比較して、上下方向の長さ寸法を大きく設定されることとなる。そのため、エアバッグ本体１１の展開膨張時において、エアバッグ本体１１における取付部２４付近を、規制部材２９における連結解除部３２の解除後の部位２９ｃにより広く覆うことができることから、展開膨張するエアバッグ本体１１が、インナパネル２等の車両Ｖのボディ１側の部材と干渉することを防止できる。勿論、この点を考慮しなければ、規制部材２９を、上下方向の中間部位、あるいは、上端２９ａ付近となる部位で、破断させる構成としてもよい。   Furthermore, in the head protection airbag device M of the embodiment, the lower edge of the airbag main body 11 is obtained by breaking the restriction member 29 between the slits 31 and 31 of the connection release portion 32 disposed near the lower end 29b. The connection state between the vicinity of the attachment portion 24 and the vicinity of the lower edge 11b in the airbag main body 11 can be released at a position near 11b. That is, in the airbag apparatus M of the embodiment, a portion 29c (FIG. 6) disposed on the upper edge 11a side of the airbag body 11 in the regulating member 29 after the connection release portion 32 breaks between the slits 31 and 31. However, the length dimension in the vertical direction is set to be larger than that in the case where the restriction member is configured to be broken at a position that is an intermediate portion in the vertical direction. Therefore, when the airbag body 11 is deployed and inflated, the vicinity of the attachment portion 24 in the airbag body 11 can be widely covered with the portion 29c after the release of the connection release portion 32 in the regulating member 29. The main body 11 can be prevented from interfering with members on the body 1 side of the vehicle V such as the inner panel 2. Of course, if this point is not taken into consideration, the restricting member 29 may be broken at an intermediate portion in the vertical direction or a portion near the upper end 29a.

なお、実施形態の場合、規制部材２９として、織布から形成されるものを使用しているが、規制部材２９を形成する材料は織布に限られるものではなく、例えば、規制部材として、紐状体や、合成樹脂製のフィルム等から形成されるものを使用してもよい。また、実施形態では、規制部材２９の下端２９ｂ側を、縫合糸Ｔを利用して、折り畳まれたエアバッグ本体１１の下縁１１ｂ近傍に縫着させて、エアバッグ本体１１の下縁１１ｂに結合させている構成であるが、結合手段はこれに限られるものではない。例えば、接着剤等を利用して、規制部材２９の下端２９ｂ側を、エアバッグ本体１１の下縁１１ｂ近傍に結合させる構成としてもよい。   In the case of the embodiment, a material formed from a woven fabric is used as the regulating member 29. However, the material forming the regulating member 29 is not limited to the woven fabric. You may use what is formed from a shape body, a film made from a synthetic resin, etc. In the embodiment, the lower end 29b side of the regulating member 29 is sewn to the vicinity of the lower edge 11b of the airbag body 11 using the suture T, and the lower edge 11b of the airbag body 11 is sewn. Although it is the structure couple | bonded, a coupling | bonding means is not restricted to this. For example, it is good also as a structure which couple | bonds the lower end 29b side of the control member 29 with the lower edge 11b vicinity of the airbag main body 11 using an adhesive agent.

さらに、実施形態の場合、縫合部位３４の上方にスリット３１を備えた連結解除部３２が配設されて、スリット３１・３１間を破断させることにより、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態が解除される構成である。しかし、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態を解除するための解除手段は、これに限られるものではない。例えば、規制手段３０の下端２９ｂ付近とエアバッグ本体１１の下縁１１ｂ近傍に縫着させている縫合糸Ｔ自体の強度を弱く設定して、縫合糸Ｔ自体が切断されることにより、規制部材２９の下端２９ｂとエアバッグ本体１１の下縁１１ｂとの連結が解除されて、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態を解除させる構成としてもよい。また、接着剤を利用して規制部材２９の下端２９ｂ側を、エアバッグ本体１１の下縁１１ｂに結合させる構成とする場合、規制部材２９の下端２９ｂ付近とエアバッグ本体１１の下縁１１ｂ近傍との接着状態を解除することにより、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近との連結状態を解除させる構成としてもよい。   Further, in the case of the embodiment, the connection release portion 32 having the slit 31 is disposed above the stitching portion 34 and the slits 31 and 31 are broken so that the vicinity of the attachment portion 24 in the airbag main body 11 and the lower portion thereof. The connection state with the vicinity of the edge 11b is released. However, the releasing means for releasing the connection state between the vicinity of the attachment portion 24 and the vicinity of the lower edge 11b in the airbag body 11 is not limited to this. For example, the strength of the suture T itself sewn near the lower end 29b of the restricting means 30 and the vicinity of the lower edge 11b of the airbag main body 11 is set to be weak, and the suture T itself is cut, whereby the restricting member 29, the connection between the lower end 29b of the airbag body 11 and the lower edge 11b of the airbag body 11 may be released, and the connection state between the vicinity of the attachment portion 24 and the vicinity of the lower edge 11b of the airbag body 11 may be released. Moreover, when it is set as the structure which couple | bonds the lower end 29b side of the control member 29 with the lower edge 11b of the airbag main body 11 using an adhesive agent, the lower end 29b vicinity of the control member 29 and the lower edge 11b vicinity of the airbag main body 11 It is good also as a structure which cancels | releases the connection state of the attachment part 24 vicinity in the airbag main body 11 and the lower edge 11b vicinity by cancel | releasing the adhesion state.

また、エアバッグとして、図８に示す構成のものを使用してもよい。図８のエアバッグ４２は、折り畳まれたエアバッグ本体１１の車内側Ｉを覆うカバー部材４３を備える構成である。エアバッグ本体１１及び規制部材２９は、前述のエアバッグ１０と同様の構成であるため、同一の図符号を付して説明を省略する。カバー部材４３は、ポリアミド糸等を使用した織布から、形成されており、規制部材２９と同様に、前席用・後席用流入部１５・１６の領域となる２箇所に、それぞれ、配設されている。   Moreover, you may use the thing of the structure shown in FIG. 8 as an airbag. The airbag 42 in FIG. 8 includes a cover member 43 that covers the vehicle interior I of the folded airbag body 11. Since the airbag main body 11 and the regulating member 29 have the same configuration as the airbag 10 described above, the same reference numerals are given and description thereof is omitted. The cover member 43 is formed of a woven fabric using polyamide yarn or the like, and is arranged at two locations, which are the areas of the front seat and rear seat inflow portions 15 and 16, respectively, similarly to the regulation member 29. It is installed.

カバー部材４３は、エアバッグ本体１１の取付部２４付近と、エアバッグ本体１１の下縁１１ｂ付近と、を連結するように配設されている。実施形態の場合、カバー部材４３は、規制部材２９と同様に、上端４３ａ側に、エアバッグ本体１１の取付部２４に対応するとともに、取付ボルト３６を挿通させる取付孔４４ａを有した取付部４４を、備えている。すなわち、各カバー部材４３は、上端４３ａ側に配設される取付部４４を、エアバッグ本体１１における取付部２４及び規制部材２９の取付部３０とともに、取付ブラケット３５とボルト３６とを利用して、ボディ１側のインナパネル２に固定されている。また、各カバー部材４３の下端４３ｂ側には、カバー部材４３の下端４３ｂ付近を、縫合糸Ｔを利用して、折り畳まれたエアバッグ本体１１の下縁１１ｂ側に結合させる縫合部位４７が、配設されている。すなわち、各カバー部材４３は、規制部材２９と同様に、上端４３ａ側を取付部２４とともにインナパネル２に固定され、下端４３ｂ側を、縫合糸Ｔを利用して、折り畳まれたエアバッグ本体１１の下縁１１ｂ近傍の周縁部２３の部位に縫着させることにより、エアバッグ本体１１における取付部２４付近と下縁１１ｂ付近とを連結する構成である。また、カバー部材４３の下端４３ｂ付近における縫合部位４７近傍となる部位には、規制部材２９と同様に、エアバッグ本体１１の展開膨張途中において破断可能なスリット４５を備えた連結解除部４６が、配設されている。この連結解除部４６は、実施形態の場合、スリット４５・４５間を、規制部材２９に形成される連結解除部３２よりも、小さな力で、破断可能な強度に設定されている。すなわち、カバー部材４３に形成される連結解除部４６は、規制部材２９に形成される連結解除部３２よりも、先に、スリット４５・４５間を破断されることとなる。   The cover member 43 is disposed so as to connect the vicinity of the attachment portion 24 of the airbag main body 11 and the vicinity of the lower edge 11b of the airbag main body 11. In the case of the embodiment, the cover member 43, like the regulating member 29, corresponds to the attachment portion 24 of the airbag body 11 and has an attachment portion 44 having an attachment hole 44 a through which the attachment bolt 36 is inserted on the upper end 43 a side. Is provided. That is, each cover member 43 uses the mounting bracket 35 and the bolt 36 together with the mounting portion 44 disposed on the upper end 43 a side together with the mounting portion 24 of the airbag body 11 and the mounting portion 30 of the regulating member 29. It is fixed to the inner panel 2 on the body 1 side. Further, on the lower end 43b side of each cover member 43, there is a stitched portion 47 that connects the vicinity of the lower end 43b of the cover member 43 to the lower edge 11b side of the folded airbag body 11 using the suture T. It is arranged. That is, each cover member 43 is fixed to the inner panel 2 with the mounting portion 24 on the upper end 43a side, similarly to the regulating member 29, and the airbag body 11 is folded on the lower end 43b side using the suture T. In this configuration, the vicinity of the attachment portion 24 and the vicinity of the lower edge 11b in the airbag main body 11 are connected by sewing to the peripheral edge portion 23 in the vicinity of the lower edge 11b. Further, in the vicinity of the stitched portion 47 in the vicinity of the lower end 43b of the cover member 43, similarly to the regulating member 29, a connection release portion 46 having a slit 45 that can be broken during the expansion and inflation of the airbag body 11 is provided. It is arranged. In the case of the embodiment, the connection release portion 46 is set to a strength that can be broken between the slits 45 and 45 with a smaller force than the connection release portion 32 formed in the regulating member 29. That is, the connection release part 46 formed in the cover member 43 is broken between the slits 45 and 45 before the connection release part 32 formed in the restriction member 29.

エアバッグ４２を上記構成とした場合、折り畳まれたエアバッグ本体１１が、車外側Ｏを規制部材２９により覆われるとともに、車内側Ｉをカバー部材４３により覆われることから、規制部材２９とカバー部材４３とを、エアバッグ本体１１の折り畳み形状を維持させるためのラッピング材としても、使用することができる。また、上記構成のエアバッグ４２を使用したエアバッグ装置では、スリット４５・４５間を破断させた後のカバー部材４３により、展開膨張するエアバッグ本体１１が、エアバッグカバー８等の車内側に配設される部材と直接接触することも防止できる。さらに、上記構成のエアバッグ４２を使用したエアバッグ装置では、カバー部材４３に配設される連結解除部４６は、スリット４５・４５間を、規制部材２９に配設される連結解除部３２よりも先に破断されて、エアバッグ本体１１の取付部２４付近と下縁１１ｂ付近との連結状態を解除されることから、カバー部材４３を設けても、エアバッグ本体１１の膨張初期に、下縁１１ｂ付近が規制部材２９により車外側Ｏに引っ張られることとなり、エアバッグ本体１１の展開方向を規制可能である。   When the airbag 42 is configured as described above, the folded airbag body 11 is covered with the regulating member 29 on the vehicle outer side O and covered with the cover member 43 on the vehicle inner side I. Therefore, the regulating member 29 and the cover member 43 can also be used as a wrapping material for maintaining the folded shape of the airbag body 11. Further, in the airbag device using the airbag 42 having the above-described configuration, the airbag body 11 that is deployed and inflated by the cover member 43 after the slits 45 and 45 are broken is placed on the inner side of the airbag cover 8 or the like. Direct contact with the member to be disposed can also be prevented. Further, in the airbag device using the airbag 42 having the above-described configuration, the connection release portion 46 disposed in the cover member 43 is located between the slits 45 and 45 than the connection release portion 32 disposed in the restriction member 29. Since the connection state between the vicinity of the attachment portion 24 of the airbag main body 11 and the vicinity of the lower edge 11b is released, the cover body 43 is provided at the initial stage of inflation of the airbag main body 11 even if the cover member 43 is provided. The vicinity of the edge 11b is pulled toward the vehicle outer side O by the regulating member 29, and the deployment direction of the airbag body 11 can be regulated.

なお、実施形態では、カバー部材４３を、規制部材２９と同様に、前席用・後席用流入部１５・１６の領域となる２箇所に、配設させているが、カバー部材４３を、長方形板状部２７ｃの部位等、エアバッグ本体１１における規制部材２９の配設されない領域に、配設させてもよい。勿論、カバー部材４３を、エアバッグ本体１１におけるガス流入部１３の略全域となる部位に、１つ配設させる構成としてもよい。   In the embodiment, the cover member 43 is arranged in two places which are the regions of the front seat / rear seat inflow portions 15 and 16, similarly to the regulating member 29. You may arrange | position in the area | region where the control member 29 in the airbag main body 11 is not arrange | positioned, such as the site | part of the rectangular plate-shaped part 27c. Needless to say, one cover member 43 may be provided in a portion of the airbag main body 11 that is substantially the entire region of the gas inflow portion 13.

また、実施形態では、カバー部材４３の下端４３ｂは折り畳まれたエアバッグ本体１１の下縁１１ｂ近傍の周縁部２３の部位に縫着されているが、カバー部材４３の下端４３ｂは、エアバッグ本体１１の下縁１１ｂ付近であれば、直接エアバッグ本体１１の下縁１１ｂに結合させなくともよい。例えば、カバー部材４３の下端４３ｂ付近を、規制部材２９の下端２９ｂ付近に縫着させる構成としてもよい。勿論、カバー部材４３の下端４３ｂは、縫合糸Ｔに限らず、例えば、接着剤等を利用して、エアバッグ本体１１の下縁１１ｂ付近に結合させる構成としてもよい。   Further, in the embodiment, the lower end 43b of the cover member 43 is sewn to the peripheral portion 23 in the vicinity of the lower edge 11b of the folded airbag body 11, but the lower end 43b of the cover member 43 is the airbag body. If it is near the lower edge 11b of 11, it is not necessary to couple | bond with the lower edge 11b of the airbag main body 11 directly. For example, the vicinity of the lower end 43 b of the cover member 43 may be sewn to the vicinity of the lower end 29 b of the regulating member 29. Of course, the lower end 43b of the cover member 43 is not limited to the suture thread T, and may be configured to be coupled to the vicinity of the lower edge 11b of the airbag body 11 by using, for example, an adhesive.

本発明の一実施形態である頭部保護エアバッグ装置の使用態様を示す車内側から見た概略正面図である。It is the schematic front view seen from the vehicle inner side which shows the usage condition of the head protection airbag apparatus which is one Embodiment of this invention. 図１のII−II部位の概略拡大断面図である。It is a general | schematic expanded sectional view of the II-II site | part of FIG. 実施形態で使用するエアバッグの正面図である。It is a front view of the airbag used in an embodiment. 実施形態のエアバッグにおけるエアバッグ本体と規制部材とを示す分解正面図である。It is a disassembled front view which shows the airbag main body and the control member in the airbag of embodiment. 実施形態のエアバッグ装置におけるエアバッグの展開膨張状態を示す概略図である。It is the schematic which shows the expansion | deployment inflation state of the airbag in the airbag apparatus of embodiment. 実施形態のエアバッグ装置におけるエアバッグの展開膨張状態を示す概略図であり、図５の後の状態を示す図である。It is the schematic which shows the expansion | deployment inflation state of the airbag in the airbag apparatus of embodiment, and is a figure which shows the state after FIG. 実施形態のエアバッグ装置におけるエアバッグの展開膨張状態を示す概略図であり、図６の後の状態を示す図である。It is the schematic which shows the expansion | deployment inflation state of the airbag in the airbag apparatus of embodiment, and is a figure which shows the state after FIG. 本発明の他の実施形態である頭部保護エアバッグ装置の概略断面図である。It is a schematic sectional drawing of the head protection airbag apparatus which is other embodiment of this invention.

符号の説明Explanation of symbols

１…ボディ、
２…インナパネル、
１０…エアバッグ、
１１…エアバッグ本体、
１５…前席用流入部（乗員保護エリア）、
１６…後席用流入部（乗員保護エリア）、
２４…取付部、
２９…規制部材、
３０…取付部、
３１…スリット、
３２…連結解除部
３３…縫合部位、
３４…縫合部位、
４２…エアバッグ、
４３…カバー部材、
４４…取付部、
４５…スリット、
４６…連結解除部、
４７…縫合部位、
Ｖ…車両、
Ｗ（Ｗ１・Ｗ２）…窓、
Ｍ…頭部保護エアバッグ装置。 1 ... Body
2 ... Inner panel,
10 ... Airbag,
11 ... Airbag body,
15 ... Front seat inflow section (occupant protection area),
16 ... Rear seat inflow section (occupant protection area),
24 ... Mounting part,
29 ... restricting member,
30 ... Mounting part,
31 ... Slit,
32 ... Connection release part 33 ... Suture part,
34 ... suture site,
42 ... Airbag,
43. Cover member,
44 ... Mounting part,
45 ... Slit,
46 ... Connection release part,
47 ... suture site,
V ... Vehicle,
W (W1 / W2) ... window,
M: Head protection airbag device.

Claims (5)

車両の車内側における窓の上縁側に折り畳まれて収納されるとともに、上縁側を車両のボディ側に固定され、膨張用ガスの流入時に下方へ展開膨張するエアバッグを備えて構成され、
該エアバッグが、下縁側を上縁側に接近させるように、折り畳まれて収納される構成の頭部保護エアバッグ装置であって、
前記エアバッグが、膨張用ガスを流入させて展開膨張するエアバッグ本体と、該エアバッグ本体の展開膨張時における展開方向を規制する規制部材と、を備えて構成され、
前記規制部材が、
折り畳まれた前記エアバッグ本体の車外側において、前記エアバッグ本体の前記ボディ側への固定部位付近と、前記エアバッグ本体の下縁付近と、を連結するように配設されるとともに、
前記エアバッグ本体の膨張初期において前記エアバッグ本体の下縁付近を車外側に向けるように牽引し、その後、前記エアバッグ本体の下縁付近となる位置で、前記エアバッグ本体における前記ボディ側への固定部位付近と下縁付近との連結状態を解除させることにより、前記エアバッグ本体の下縁側の突出方向を車外側へ規制可能な構成とされていることを特徴とする頭部保護エアバッグ装置。 Folded and housed on the upper edge side of the window inside the vehicle, the upper edge side is fixed to the body side of the vehicle, and comprises an airbag that expands and inflates downward when inflating gas flows in,
The airbag is a head protection airbag device configured to be folded and stored so that the lower edge side approaches the upper edge side,
The airbag is configured to include an airbag body that expands and inflates by flowing an inflation gas, and a regulating member that regulates a deployment direction during deployment of the airbag body,
The regulating member is
On the vehicle exterior side of the folded airbag body, disposed near the fixing portion of the airbag body on the body side and near the lower edge of the airbag body,
In the initial stage of inflation of the airbag body, the airbag body is pulled so that the vicinity of the lower edge of the airbag body is directed to the outside of the vehicle, and then to the body side of the airbag body at a position near the lower edge of the airbag body. The head protection airbag is configured to be able to restrict the protruding direction of the lower edge side of the airbag body to the outside of the vehicle by releasing the connection state between the vicinity of the fixed portion and the vicinity of the lower edge of the airbag. apparatus. 車両の車内側における窓の上縁側に折り畳まれて収納されるとともに、上縁側を車両のボディ側に固定され、膨張用ガスの流入時に下方へ展開膨張するエアバッグを備えて構成され、
該エアバッグが、下縁側を上縁側に接近させるように、折り畳まれて収納される構成の頭部保護エアバッグ装置であって、
前記エアバッグが、膨張用ガスを流入させて展開膨張するエアバッグ本体と、該エアバッグ本体の展開膨張時における展開方向を規制する規制部材と、折り畳まれた前記エアバッグ本体の車内側を覆うカバー部材と、を備えて構成され、
前記規制部材が、
折り畳まれた前記エアバッグ本体の車外側において、前記エアバッグ本体の前記ボディ側への固定部位付近と、前記エアバッグ本体の下縁付近と、を連結するように配設されるとともに、
前記エアバッグ本体の膨張初期において前記エアバッグ本体の下縁付近を車外側に向けるように牽引し、その後、前記エアバッグ本体における前記ボディ側への固定部位付近と下縁付近との連結状態を解除させることにより、前記エアバッグ本体の下縁側の突出方向を車外側へ規制可能な構成とされ、
前記カバー部材が、
前記エアバッグ本体の前記ボディ側への固定部位付近と、前記エアバッグ本体の下縁付近と、を連結するように配設されるとともに、
前記エアバッグ本体における前記ボディ側への固定部位付近と下縁付近との連結状態が、前記エアバッグ本体の展開膨張時において、前記規制部材における前記エアバッグ本体の前記ボディ側への固定部位付近と下縁付近との連結状態よりも、先に、解除可能に設定されていることを特徴とする頭部保護エアバッグ装置。 Folded and housed on the upper edge side of the window inside the vehicle, the upper edge side is fixed to the body side of the vehicle, and comprises an airbag that expands and inflates downward when inflating gas flows in,
The airbag is a head protection airbag device configured to be folded and stored so that the lower edge side approaches the upper edge side,
The airbag covers an inner side of the airbag body that is inflated by inflating the inflation gas, a regulating member that regulates a deployment direction when the airbag body is deployed and inflated, and a vehicle interior of the folded airbag body. And a cover member ,
The regulating member is
On the vehicle exterior side of the folded airbag body, disposed near the fixing portion of the airbag body on the body side and near the lower edge of the airbag body,
In the initial stage of inflation of the airbag body, the airbag body is pulled so that the vicinity of the lower edge of the airbag body faces the outside of the vehicle, and then the connection state between the vicinity of the fixed portion to the body side and the vicinity of the lower edge of the airbag body is changed. By releasing, the protruding direction on the lower edge side of the airbag body is configured to be restricted to the outside of the vehicle ,
The cover member is
While being arranged so as to connect the vicinity of the fixed portion of the airbag body to the body side and the vicinity of the lower edge of the airbag body,
When the airbag body is deployed and inflated, the connection state between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge is in the vicinity of the fixed portion of the airbag body on the body side of the regulating member. The head protection airbag device is set to be releasable prior to the connection state between the lower edge and the vicinity of the lower edge . 前記規制部材が、前記エアバッグ本体における乗員保護エリアとなる位置に、配設されていることを特徴とする請求項１又は２に記載の頭部保護エアバッグ装置。 The regulating member, the position at which the passenger protection area in the airbag body, the head protecting air bag apparatus according possible to claim 1 or 2, characterized in that disposed. 前記規制部材が、前記エアバッグ本体の下縁付近となる位置で、前記エアバッグ本体における前記ボディ側への固定部位付近と下縁付近との連結状態を解除可能に、構成されていることを特徴とする請求項２に記載の頭部保護エアバッグ装置。 The restricting member is configured to be capable of releasing the connection state between the vicinity of the fixed portion of the airbag body on the body side and the vicinity of the lower edge at a position near the lower edge of the airbag body. The head protection airbag device according to claim 2, wherein the head protection airbag device is a head protection airbag device. 前記規制部材が、上下方向の幅寸法を、前記エアバッグ本体の膨張完了時において、前記エアバッグ本体の車外側に配設されるインナパネルの車内側を覆い可能な幅寸法に設定されていることを特徴とする請求項１又は４に記載の頭部保護エアバッグ装置。The regulating member is set to have a width dimension in the vertical direction that can cover the inner side of the inner panel disposed on the outer side of the airbag body when the inflation of the airbag body is completed. The head protection airbag device according to claim 1 or 4.
JP2003298569A 2003-08-22 2003-08-22 Head protection airbag device Expired - Fee Related JP4089550B2 (en)

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JP4595724B2 (en) * 2005-07-15 2010-12-08 トヨタ自動車株式会社 Head protection airbag device
JP5673251B2 (en) * 2011-03-16 2015-02-18 トヨタ紡織株式会社 Vehicle seat
JP6185902B2 (en) * 2014-12-18 2017-08-23 オートリブ ディベロップメント エービー Curtain airbag device
JP6236379B2 (en) * 2014-12-18 2017-11-22 オートリブ ディベロップメント エービー Curtain airbag device mounting method

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