JP4315113B2

JP4315113B2 - Head protection airbag device

Info

Publication number: JP4315113B2
Application number: JP2005049173A
Authority: JP
Inventors: 大輔山村
Original assignee: Toyoda Gosei Co Ltd
Current assignee: Toyoda Gosei Co Ltd
Priority date: 2005-02-24
Filing date: 2005-02-24
Publication date: 2009-08-19
Anticipated expiration: 2025-02-24
Also published as: JP2006232081A

Description

本発明は、三列シートタイプの車両に搭載される頭部保護エアバッグ装置に関する。 The present invention relates to a head protection airbag device mounted on a three-row seat type vehicle.

従来、三列シートタイプの車両に搭載され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、インフレーターからの膨張用ガスを流入させて窓の車内側を覆うように展開膨張する構成のエアバッグを備えていた。そして、従来の頭部保護エアバッグ装置では、エアバッグが、一列目から三列目の座席の側方に配設される３つの窓の車内側を、それぞれ、覆うように、膨張用ガスを流入させて膨張する３つの膨張遮蔽部を、を備えた構成であった。（例えば、特許文献１参照）。
特開２００２−２００９５９公報 Conventionally, a head protection airbag device mounted on a three-row seat type vehicle is folded and housed on the upper edge side of a window inside the vehicle, and an inflating gas from an inflator is allowed to flow into the window. The airbag of the structure expand | deployed and inflated so that the vehicle inner side might be covered was provided. And in the conventional head protection airbag device, the airbag is inflated so as to cover the insides of the three windows arranged on the sides of the first to third row seats, respectively. It was the structure provided with three expansion | swelling shielding parts which are made to flow in and expand | swell. (For example, refer to Patent Document 1).
JP 2002-200959 A

しかし、従来の頭部保護エアバッグ装置では、エアバッグが、３つの膨張遮蔽部を備える構成であることから、エアバッグが大型化して、容量が増大し、インフレーターも高出力のものを使用する必要が生じていた。また、三列シートタイプの車両の場合、三列目の座席に乗員が着座しない場合も多いことから、エアバッグを、膨張完了時に、一列目と二列目の座席の側方に配設される窓の車内側を覆う構成の前列用バッグと、三列目の座席の側方に配設される窓の車内側を覆う構成の後列用バッグと、に、分割して、それぞれ、インフレーターからの膨張用ガスを流入させて展開膨張させる構成とし、後列用バッグを、三列目の座席に乗員が着座した場合にのみ展開膨張可能な構成とすることも考慮できる。しかし、後列用バッグを分割させた場合、車外側へ移動する乗員の頭部を拘束する際に、乗員頭部の車外側への移動を防止するテンションを確保し難い。 However, in the conventional head protection airbag device, since the airbag has a configuration including three inflating shielding portions, the airbag is enlarged, the capacity is increased, and the inflator having a high output is used. There was a need. Also, in the case of a three-row seat type vehicle, there are many cases where an occupant is not seated in the third row seat, so the airbags are arranged on the sides of the first and second row seats when the inflation is completed. Divided into a front row bag configured to cover the vehicle interior side of the window and a rear row bag configured to cover the vehicle interior side of the window disposed on the side of the third row of seats, respectively, from the inflator It can also be considered that the rear row bag can be deployed and inflated only when an occupant is seated in the third row seat. However, when the rear row bag is divided, it is difficult to secure a tension for preventing the occupant's head from moving outside the vehicle when restraining the occupant's head moving outside the vehicle.

本発明は、上述の課題を解決するものであり、三列目の座席に着座した乗員の頭部を的確に保護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 problems, and an object of the present invention is to provide a head protection airbag device capable of accurately protecting the heads of passengers seated in the third row of seats.

本発明に係る頭部保護エアバッグ装置は、膨張完了時の上縁側を車両の車内側における窓の上縁側のボディ側に固定させて、窓の上縁側に折り畳まれて収納されるとともに、インフレーターからの膨張用ガスを流入させて収納位置から下方に突出しつつ窓の車内側を覆うように展開膨張する構成のエアバッグ、を備える構成とされて、三列シートタイプの車両に搭載され、
エアバッグが、インフレーターからの膨張用ガスを流入させて膨張するガス流入部と、膨張用ガスを流入させない非流入部と、を備える構成とされ、
ガス流入部が、エアバッグの膨張完了時に、窓の車内側を覆うように配設される膨張遮蔽部を備え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、それぞれ別体とされて、膨張完了時に一列目と二列目の座席の側方に配設される窓の車内側を覆うように配設される前側膨張遮蔽部を有した前列用バッグと、膨張完了時に三列目の座席の側方に配設される窓の車内側を覆うように配設される後側膨張遮蔽部を有した後列用バッグと、から構成され、
後列用バッグが、膨張完了時の前端近傍における下縁側の部位に配設される連結部を、前列用バッグの膨張完了時における後縁近傍において略上下方向に沿って配設されるガイド部に連結させることにより、前列用バッグに連結される構成とされ、
連結部が、
前列用バッグのみを展開膨張させる際に、ガイド部に対して相対的に摺動可能として、前列用バッグのみの展開膨張を許容するように、ガイド部に連結され、かつ、
前列用バッグと後列用バッグとをともに展開膨張させる際に、後列用バッグの下方への展開に伴ってガイド部の下端付近まで摺動可能とされて、後列用バッグの膨張完了時において、連結部から後列用バッグの上縁側における後端近傍に配設されるボディ側への固定部位にかけてテンションを発生可能に、
ガイド部に連結されていることを特徴とする。 The head protection airbag device according to the present invention fixes the upper edge side when the inflation is completed to the body side of the upper edge side of the window inside the vehicle, and is folded and stored on the upper edge side of the window. Inflated gas from the storage position and projecting downward from the storage position while expanding and inflating so as to cover the inside of the window, and mounted on a three-row seat type vehicle,
The air bag is configured to include a gas inflow portion that inflates by inflating the inflation gas from the inflator, and a non-inflow portion that does not allow the inflation gas to flow,
The gas inflow portion is a head protection airbag device configured to include an expansion shielding portion disposed so as to cover the inside of the window when the airbag is completely inflated,
A front row having front-side inflating shielding portions that are separately provided and cover the vehicle interior side of windows that are arranged on the sides of the first and second row seats when inflation is completed. And a rear row bag having a rear side expansion shielding part disposed so as to cover the vehicle interior side of the window disposed on the side of the third row of seats when the inflation is completed,
The rear row bag is connected to the guide portion disposed along the substantially vertical direction in the vicinity of the rear edge when the front row bag is inflated. By connecting, it is configured to be connected to the front row bag,
The connecting part is
When only the front row bag is deployed and inflated, it is slidable relative to the guide portion, connected to the guide portion so as to allow only the front row bag to be deployed and inflated, and
When both the front row bag and the rear row bag are expanded and inflated, the lower row of the rear row bag can be slid to the vicinity of the lower end of the guide portion and connected when the rear row bag is completely expanded. The tension can be generated from the part to the fixed part to the body side disposed near the rear end on the upper edge side of the rear row bag,
It is connected to the guide part.

本発明の頭部保護エアバッグ装置では、展開膨張時に三列目の座席の側方に配設される窓の車内側を覆う後列用バッグを、展開膨張時に一列目・二列目の座席の側方に配設される窓の車内側を覆う前列用バッグと、別体としているものの、後列用バッグは、展開膨張時の前端近傍の下縁側の部位に配設される連結部により、前列用バッグと連結されている構成である。三列目の座席に乗員が着座した状態では、通常、運転者がいる一列目あるいは二列目の座席にも運転者を含めた乗員が着座していることから、後列用バッグの展開膨張時には、必ず、前列用バッグも展開膨張することとなる。そのため、後列用バッグは、展開膨張完了時に、前縁側の下端近傍部位を、膨張を完了させた前列用バッグのガイド部の下端付近に、連結部を介して連結された状態とし、そして、連結部から後列用バッグの上縁側における後端近傍に配設されるボディ側への固定部位にかけてテンションを発生可能に、膨張を完了させることとなる。その結果、着座した乗員の頭部が車外側に大きく移動した場合にも、連結部から斜め後方の固定部位にかけてのテンションを発生させた後側膨張遮蔽部により、乗員の頭部を、車外側へ移動させることなく、拘束することができて、乗員の頭部を的確に保護することが可能となる。 In the head protection airbag device of the present invention, the rear row bag that covers the vehicle interior side of the window disposed on the side of the third row seat at the time of deployment and inflation is used for the first row and second row seats at the time of deployment and inflation. Although the front row bag that covers the vehicle interior side of the window disposed on the side is a separate body, the rear row bag is connected to the front row by a connecting portion disposed on the lower edge side near the front end when deployed and inflated. It is the structure connected with the bag for use. In the state where the occupant is seated in the third row seat, the occupant including the driver is usually seated in the first row or the second row seat where the driver is present. Of course, the front row bag also expands and inflates. Therefore, when the rear row bag is deployed and inflated, the lower end portion on the front edge side is connected to the vicinity of the lower end of the guide portion of the front row bag that has been inflated via the connecting portion. Inflation is completed so that tension can be generated from the portion to the fixing portion to the body side disposed near the rear end on the upper edge side of the rear row bag. As a result, even when the head of the seated occupant has moved greatly to the outside of the vehicle, the occupant's head is placed on the outside of the vehicle by the rear side expansion shield that generates tension from the connecting portion to the diagonally fixed portion. It can be restrained without moving to, and the head of the passenger can be protected accurately.

従って、本発明の頭部保護エアバッグ装置では、三列目の座席に着座した乗員の頭部を的確に保護することができる。 Therefore, in the head protection airbag device of the present invention, it is possible to accurately protect the heads of the occupants seated in the third row of seats.

また、本発明の頭部保護エアバッグ装置では、エアバッグが、それぞれ別体とされる前列用バッグと後列用バッグとから構成されており、三列目の座席に乗員が着座していない状態では、前列用バッグのみを展開膨張させる構成であるが、本発明の頭部保護エアバッグ装置では、後列用バッグを前列用バッグに連結させる連結部が、前列用バッグに配設されるガイド部に対して相対的に摺動可能として、前列用バッグのみの展開膨張を許容するように、ガイド部に連結されていることから、連結部により前列用バッグと後列用バッグが連結されている構成であっても、前列用バッグのみを円滑に展開膨張させることができる。 Further, in the head protection airbag device of the present invention, the airbag is composed of a front row bag and a rear row bag that are separated from each other, and no passenger is seated in the third row of seats. Then, only the front row bag is deployed and inflated. However, in the head protection airbag device of the present invention, the connecting portion for connecting the rear row bag to the front row bag is a guide portion disposed on the front row bag. The front row bag and the rear row bag are connected to each other by the connecting portion so as to be relatively slidable with respect to the guide portion so as to allow expansion and expansion of only the front row bag. Even so, only the front row bag can be smoothly expanded and inflated.

さらに、上記構成の頭部保護エアバッグ装置において、ガイド部を、略上下方向に沿った帯状として、前側膨張遮蔽部の後縁側の非流入部の部位に配設させる構成とすれば、ガイド部が、膨張完了時に乗員の頭部を保護する部位であるガス流入部の膨張遮蔽部から後方側に外れた非流入部の位置に配設されることとなるため、エアバッグの展開膨張時に、ガイド部や、ガイド部と連結される連結部が、一列目や二列目の座席に着座した乗員と干渉することを抑えることができて、好ましい。 Furthermore, in the head protection airbag device having the above-described configuration, if the guide portion is configured to be disposed in a portion of the non-inflow portion on the rear edge side of the front side expansion shielding portion as a belt shape substantially along the vertical direction, However, when the airbag is deployed and inflated, it is disposed at the position of the non-inflow portion that is removed from the rear side of the expansion shielding portion of the gas inflow portion, which is a part that protects the occupant's head when the inflation is completed. The guide portion and the connecting portion connected to the guide portion can be preferably prevented from interfering with an occupant seated on the first row or second row of seats.

さらにまた、上記構成の頭部保護エアバッグ装置において、前列用バッグに、非流入部として、膨張完了時における前側膨張遮蔽部の後縁側における少なくとも下端側の部位から車両後方側に延びるように配設されて、後端を三列目に配設される窓の上縁側に固定させる延設部を、配設させる構成とし、
後側膨張遮蔽部の前・後列用バッグの膨張完了時における車外側を、延設部に支持させる構成とすることが好ましい。 Furthermore, in the head protection airbag device having the above-described configuration, the front row bag is arranged as a non-inflow portion so as to extend from the at least the lower end side portion on the rear edge side of the front side expansion shielding portion at the time of completion of inflation to the vehicle rear side. And an extended portion for fixing the rear end to the upper edge side of the window arranged in the third row,
It is preferable that the vehicle outer side when the front and rear row bags of the rear side expansion shielding part are inflated is supported by the extending part.

頭部保護エアバッグ装置を上記構成とすれば、エアバッグの膨張完了時に、延設部により、膨張を完了させた後列用バッグにおける後側膨張遮蔽部の車外側を支持させることができることから、三列目の座席に着座した乗員の頭部が車外側に大きく移動しても、乗員の頭部を、一層確実に拘束することができる。また、上記構成の頭部保護エアバッグ装置では、前列用バッグの車両のボディ側への固定位置における後端側の部位を、延設部を配設させない構成のものと比較して、車両後方側に位置させることができることから、延設部を配設させない構成のものと比較して、前列用バッグの膨張完了時に、前後方向に沿うように大きなテンションが発生することとなる。そのため、一列目あるいは二列目の座席に着座した乗員の頭部が車外側に大きく移動した場合にも、前側膨張遮蔽部により、乗員の頭部を確実に拘束することができて、好ましい。なお、上記構成の頭部保護エアバッグ装置では、前列用バッグのみを展開膨張させた際に、延設部が、三列目の座席の側方に配設される窓の車内側を覆うこととなるが、延設部は、膨張用ガスを流入させない非流入部から構成されており、前列用バッグの展開膨張時に、薄い状態で展開することから、三列目の座席を、不使用時に、窓の車内側に近接して立てるように格納するタイプの車両に適用した場合にも、延設部が格納されている三列目の座席と干渉することを極力抑えることができ、前列用バッグを円滑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, when the airbag is completely inflated, the extended portion can support the vehicle exterior side of the rear side expansion shielding portion in the rear row bag that has been inflated. Even if the occupant's head seated in the third row of seats moves greatly to the outside of the vehicle, the occupant's head can be more reliably restrained. Further, in the head protection airbag device configured as described above, the rear end portion of the front row bag at the position where the front row bag is fixed to the body side of the vehicle is compared with the configuration in which no extending portion is provided. Therefore, a large tension is generated along the front-rear direction when the front row bag is completely inflated, as compared with a configuration in which the extending portion is not provided. Therefore, even when the occupant's head seated in the first row or second row seat moves greatly to the outside of the vehicle, the occupant's head can be reliably restrained by the front expansion shield, which is preferable. In the head protection airbag device configured as described above, when only the front row bag is deployed and inflated, the extending portion covers the inside of the window disposed on the side of the seat in the third row. However, the extension part is composed of a non-inflow part that does not allow the inflation gas to flow in, and is deployed in a thin state when the front row bag is deployed and inflated. Even when applied to a vehicle that is stored so as to stand close to the inside of the window, it is possible to suppress the interference with the third row seat in which the extended portion is stored as much as possible. The bag can be smoothly deployed and inflated.

以下、本発明の一実施形態を図面に基づいて説明する。本発明の実施形態である頭部保護エアバッグ装置Ｍは、図１に示すように、前後方向に沿って三列に並んだ座席Ｓ１・Ｓ２・Ｓ３を備えた三列シートタイプの車両Ｖに搭載されるもので、車両Ｖの窓（サイドウィンド）Ｗ１・Ｗ２・Ｗ３及びリヤピラー部ＲＰの上縁側におけるフロントピラー部ＦＰやルーフサイドレール部ＲＲに、搭載されている。なお、実施形態では、エアバッグ装置Ｍは、三列目の座席Ｓ３を、不使用時に、図７・９に示すごとく、窓Ｗ３の車内側に近接して立てるように格納するタイプの車両Ｖに搭載されている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a head protection airbag apparatus M according to an embodiment of the present invention is applied to a three-row seat type vehicle V including seats S1, S2, and S3 arranged in three rows along the front-rear direction. It is mounted on the windows (side windows) W1, W2, W3 of the vehicle V and the front pillar portion FP and the roof side rail portion RR on the upper edge side of the rear pillar portion RP. In the embodiment, the airbag apparatus M stores the third row of seats S3 so as to stand up close to the vehicle interior side of the window W3 when not in use, as shown in FIGS. It is mounted on.

エアバッグ装置Ｍは、エアバッグ２３、インフレーター９・１３、取付ブラケット１０・１４・１８、及び、エアバッグカバー２１を、備えて構成されている。 The airbag device M includes an airbag 23, inflators 9, 13, mounting brackets 10, 14, 18, and an airbag cover 21.

エアバッグカバー２１は、図１に示すように、フロントピラー部ＦＰに配設されるピラーガーニッシュ３と、ルーフサイドレール部ＲＲに配設されるルーフヘッドライニング４と、のそれぞれの下縁側から構成されている。そして、エアバッグカバー２１は、折り畳まれて収納されたエアバッグ２３の車内側を覆うように配設されるとともに、展開膨張時のエアバッグ２３を車内側へ突出可能とするために、エアバッグ２３に押されて車内側に開き可能な構成とされている。 As shown in FIG. 1, the airbag cover 21 is configured from the lower edge side of each of the pillar garnish 3 disposed in the front pillar portion FP and the roof head lining 4 disposed in the roof side rail portion RR. Has been. The airbag cover 21 is disposed so as to cover the inside of the airbag 23 that is folded and accommodated, and in order to allow the airbag 23 when deployed to inflate to protrude toward the inside of the vehicle. It is configured to be able to open to the inside of the vehicle by being pushed by 23.

インフレーター９は、エアバッグ２３の後述する前列用バッグ２４に膨張用ガスを供給するもので、略円柱状とされて、先端（前端）側に、膨張用ガスを吐出可能な図示しないガス吐出口を、配設させている構成である。インフレーター９は、ガス吐出口付近を含めた先端付近を、前列用バッグ２４の後述するガス流入口部２９に挿入させ、ガス流入口部２９の後端２９ａ付近に外装されるクランプ１２を利用して、前列用バッグ２４に対して、連結されている。また、インフレーター９は、インフレーター９を保持する取付ブラケット１０と、取付ブラケット１０をボディ１側のインナパネル２に固定するための取付ボルト１１と、を利用して、インナパネル２における第１中間ピラー部Ｐ１の上方となる位置に、取り付けられている。 The inflator 9 supplies inflation gas to a front row bag 24, which will be described later, of the airbag 23. The inflator 9 has a substantially cylindrical shape, and a gas discharge port (not shown) that can discharge inflation gas to the front end (front end) side. Are arranged. The inflator 9 inserts the vicinity of the tip including the vicinity of the gas discharge port into a gas inlet portion 29 (to be described later) of the front row bag 24, and uses the clamp 12 that is externally installed near the rear end 29a of the gas inlet portion 29. The front row bag 24 is connected. Further, the inflator 9 uses a mounting bracket 10 for holding the inflator 9 and a mounting bolt 11 for fixing the mounting bracket 10 to the inner panel 2 on the body 1 side, so that the first intermediate pillar in the inner panel 2 is used. It is attached at a position above the part P1.

インフレーター１３は、エアバッグ２３の後述する後列用バッグ４５に膨張用ガスを供給するもので、インフレーター９と同様に、略円柱状とされて、ガス吐出口を含めた先端（前端）付近を、後列用バッグ４５の後述するガス流入口部５０に挿入させ、ガス流入口部５０の後端５０ａ付近に外装されるクランプ１６を利用して、後列用バッグに対して、連結されている。また、インフレーター１３は、インフレーター９と同様に、取付ブラケット１８と取付ボルト１９とを利用して、インナパネル２における窓Ｗ３の上方となる位置に、取り付けられている。 The inflator 13 supplies inflation gas to a back-row bag 45, which will be described later, of the airbag 23. Like the inflator 9, the inflator 13 has a substantially cylindrical shape, and includes the vicinity of the tip (front end) including the gas discharge port. The back row bag 45 is connected to the back row bag by using a clamp 16 which is inserted into a gas inlet portion 50 (described later) of the back row bag 45 and is provided in the vicinity of the rear end 50a of the gas inlet portion 50. Similarly to the inflator 9, the inflator 13 is mounted at a position above the window W 3 in the inner panel 2 using the mounting bracket 18 and the mounting bolt 19.

エアバッグ２３は、車内側のドアや窓Ｗ１・Ｗ２・Ｗ３の上縁側周縁におけるフロントピラー部ＦＰの下縁側からルーフサイドレール部ＲＲの下縁側にわたって、折り畳まれて収納されるもので、それぞれ別体とされて、膨張完了時に窓Ｗ１・Ｗ２の車内側を覆い可能な構成とされる前列用バッグ２４と、膨張完了時に窓Ｗ３の車内側を覆い可能な構成とされる後列用バッグ４５と、から構成されている。 The airbag 23 is folded and accommodated from the lower edge side of the front pillar portion FP to the lower edge side of the roof side rail portion RR at the upper edge side periphery of the doors and windows W1, W2, and W3 inside the vehicle. A front row bag 24 that is configured to cover the inside of the windows W1 and W2 when the inflation is completed, and a rear row bag 45 that is configured to cover the inside of the window W3 when the inflation is completed. , Is composed of.

前列用バッグ２４は、バッグ本体２５と、バッグ本体２５の後端付近に配設されるガイド部４３と、から構成されている。バッグ本体２５は、実施形態の場合、ポリアミド糸等を使用した袋織りにより製造されている。バッグ本体２５は、図１・６に示すように、上縁２５ａ側に形成される後述する取付部３５の部位で、窓Ｗ１・Ｗ２の上縁側におけるボディ１側のインナパネル２に固定されるとともに、インフレーター９からの膨張用ガスを流入させて、折り畳み状態から展開して収納位置から下方に突出しつつ、第１中間ピラー部Ｐ１の前後に配設される窓（一列目と二列目の座席Ｓ１・Ｓ２の側方に配設される窓）Ｗ１・Ｗ２、及び、第１・第２中間ピラー部Ｐ１・Ｐ２のそれぞれの車内側を覆うように、展開膨張する構成である。また、バッグ本体２５は、図２・３に示すように、車内側壁部２６ａと車外側壁部２６ｂとを離すようにして、膨張用ガスＧ１を内部に流入可能なガス流入部２６と、膨張用ガスを流入させない非流入部３４と、から構成されている。 The front row bag 24 includes a bag body 25 and a guide portion 43 disposed near the rear end of the bag body 25. In the case of the embodiment, the bag body 25 is manufactured by bag weaving using polyamide yarn or the like. As shown in FIGS. 1 and 6, the bag body 25 is fixed to the inner panel 2 on the body 1 side on the upper edge side of the windows W 1 and W 2 at a later-described mounting portion 35 formed on the upper edge 25 a side. At the same time, the expansion gas from the inflator 9 is caused to flow in, and the windows (first and second rows) arranged before and after the first intermediate pillar portion P1 are developed from the folded state and protrude downward from the storage position. The windows are arranged on the sides of the seats S1 and S2, and are expanded and inflated so as to cover the vehicle interior sides of the first and second intermediate pillar portions P1 and P2. Further, as shown in FIGS. 2 and 3, the bag body 25 includes a gas inflow portion 26 that allows the inflation gas G 1 to flow into the interior so as to separate the vehicle inner wall portion 26 a and the vehicle outer wall portion 26 b, and the expansion. And a non-inflow portion 34 through which the working gas does not flow.

ガス流入部２６は、実施形態の場合、ガス供給路部２８、ガス流入口部２９、及び、前側膨張遮蔽部としての第１・第２膨張遮蔽部３０・３１、から構成されている。 In the case of the embodiment, the gas inflow portion 26 includes a gas supply path portion 28, a gas inflow port portion 29, and first and second expansion shielding portions 30 and 31 as front expansion shielding portions.

ガス供給路部２８は、図２に示すように、バッグ本体２５の上縁２５ａ側で、車両Ｖの前後方向に沿うように配設されており、インフレーター９から吐出される膨張用ガスＧ１を、ガス供給路部２８の下方に配設される第１・第２膨張遮蔽部３０・３１に案内する構成である。ガス供給路部２８の前後方向における中央から、若干、前方側にずれた位置には、インフレーター９と接続されるガス流入口部２９が、ガス供給路部２８と連通されて、ガス供給路部２８から上方に突出するように、配設されている。ガス流入口部２９は、実施形態の場合、後端２９ａ側を開口させている。そして、ガス流入口部２９は、クランプ１２を利用して、インフレーター９に連結されることとなる。 As shown in FIG. 2, the gas supply path portion 28 is arranged along the front-rear direction of the vehicle V on the upper edge 25 a side of the bag body 25, and the expansion gas G 1 discharged from the inflator 9 is supplied. In this configuration, the first and second expansion shielding portions 30 and 31 are disposed below the gas supply path portion 28. A gas inlet 29 connected to the inflator 9 is communicated with the gas supply path 28 at a position slightly shifted from the center in the front-rear direction of the gas supply path 28 to the gas supply path 28. It is arranged so as to protrude upward from 28. In the case of the embodiment, the gas inflow port portion 29 has an opening on the rear end 29a side. The gas inflow port 29 is connected to the inflator 9 using the clamp 12.

第１膨張遮蔽部３０は、前列用バッグ２４の膨張完了時において、一列目の座席Ｓ１の側方に配設される窓Ｗ１の車内側を覆う部位である。第２膨張遮蔽部３１は、前列用バッグ２４の膨張完了時において、二列目の座席Ｓ２の側方に配設される窓Ｗ２の車内側を覆う部位である。第１・第２膨張遮蔽部３０・３１は、その領域内に、後述する区画結合部３７により区画されて、それぞれ、上下方向に沿って配設される複数の縦膨張部３２を、前後に並設させて構成されており、実施形態の場合、第１膨張遮蔽部３０は、３つの縦膨張部３２から構成され、第２膨張遮蔽部３１は、２つの縦膨張部３２から構成されている。 The first expansion shield 30 is a part that covers the vehicle interior side of the window W1 disposed on the side of the seat S1 in the first row when the front row bag 24 is completely inflated. The second expansion shield 31 is a part that covers the vehicle interior side of the window W2 disposed on the side of the seat S2 in the second row when the expansion of the front row bag 24 is completed. The first and second expansion shielding portions 30 and 31 are partitioned in the region by a partition coupling portion 37 which will be described later, and a plurality of longitudinal expansion portions 32 disposed along the vertical direction are respectively arranged in the front and rear directions. In the case of the embodiment, the first expansion shielding part 30 is composed of three vertical expansion parts 32, and the second expansion shielding part 31 is composed of two vertical expansion parts 32. Yes.

非流入部３４は、車内側壁部２６ａと車外側壁部２６ｂとを結合させた構成とされており、実施形態の場合、取付部３５、周縁結合部３６、区画結合部３７、及び、板状部３８、から構成されている。周縁結合部３６は、バッグ本体２５の外周縁の部位において、ガス流入部２６の周囲を囲むように、配設されている。 The non-inflow portion 34 is configured by combining the vehicle inner wall portion 26a and the vehicle outer wall portion 26b. In the case of the embodiment, the attachment portion 35, the peripheral edge coupling portion 36, the partition coupling portion 37, and the plate shape Part 38. The peripheral edge coupling portion 36 is disposed so as to surround the periphery of the gas inflow portion 26 at a portion of the outer peripheral edge of the bag body 25.

取付部３５は、バッグ本体２５の上縁２５ａ側における周縁結合部３６の上縁側の部位や、板状部３８における後述する延設部３９・４０の上縁側から、上方へ突出するように、複数（実施形態では７個）配設されている。各取付部３５には、前列用バッグ２４をインナパネル２に取り付けるための取付ブラケット１８が固着されることとなる。取付ブラケット１８は、取付部３５の車内側と車外側とを覆うように配設される２枚の板金製とされている（図６参照）。そして、各取付部３５は、取付ボルト１９を使用して、取付ブラケット１８ごと、ボディ１側のインナパネル２に固定されている。実施形態の場合、前列用バッグ２４の後端側となる延設部４０の上縁側に配設される取付部３５Ａ・３５Ｂは、後述する後列用バッグ４５の取付部５５Ａ・５５Ｂとともに、インナパネル２に固定される構成である。また、取付部３５Ａは、さらに、ガイド部４３の上端部位４３ａとともに、インナパネル２に固定される構成である。取付部３５Ｂは、取付部３５Ｂを取付部５５Ｂの車外側Ｏに重ねた状態で、取付部３５Ｂの車外側Ｏと取付部５５Ｂの車内側Ｉとに取付ブラケット１８を配置させて、インナパネル２に固定されている（図６参照）。取付部３５Ａは、同様に、取付部３５Ａの車内側に、ガイド部４３の上端部位４３ａと、後列用バッグ４５の取付部５５Ａと、を重ねた状態で、取付部３５Ａの車外側と取付部５５Ａの車内側とに、取付ブラケット１８を配置させて、インナパネル２に固定されることとなる。 The attachment portion 35 protrudes upward from the upper edge side portion of the peripheral edge coupling portion 36 on the upper edge 25a side of the bag body 25 and the upper edge side of the extension portions 39 and 40 described later in the plate-like portion 38. A plurality (seven in the embodiment) are arranged. An attachment bracket 18 for attaching the front row bag 24 to the inner panel 2 is fixed to each attachment portion 35. The mounting bracket 18 is made of two sheet metals disposed so as to cover the vehicle inner side and the vehicle outer side of the mounting portion 35 (see FIG. 6). Each mounting portion 35 is fixed to the inner panel 2 on the body 1 side together with the mounting bracket 18 using the mounting bolt 19. In the case of the embodiment, the mounting portions 35A and 35B disposed on the upper edge side of the extending portion 40 which is the rear end side of the front row bag 24 are the inner panels together with mounting portions 55A and 55B of the rear row bag 45 described later. It is the structure fixed to 2. Further, the attachment portion 35 A is configured to be fixed to the inner panel 2 together with the upper end portion 43 a of the guide portion 43. The mounting portion 35B has the mounting bracket 18 disposed on the vehicle outer side O of the mounting portion 35B and the vehicle inner side I of the mounting portion 55B in a state where the mounting portion 35B is superimposed on the vehicle outer side O of the mounting portion 55B. (See FIG. 6). Similarly, the mounting portion 35A is configured such that the upper end portion 43a of the guide portion 43 and the mounting portion 55A of the rear row bag 45 are overlapped on the vehicle inner side of the mounting portion 35A and the vehicle outer side and the mounting portion of the mounting portion 35A. The mounting bracket 18 is disposed on the inner side of the vehicle 55A and is fixed to the inner panel 2.

そして、実施形態の前列用バッグ２４では、延設部３９の前端付近に配設される取付部３５Ｃが、フロントピラー部ＦＰの下部側の部位においてボディ１側に取り付けられ、延設部４０の後端付近に配設される取付部３５Ｂが、窓Ｗ３の後端付近となる上縁側の部位においてボディ１側に取り付けられていることから、前列用バッグ２４の膨張完了時において、取付部３５Ｃ・３５Ｂの間に、前後方向に沿ったテンションを発生させることができる。特に、実施形態の前列用バッグ２４では、複数の縦膨張部３２を、前後方向に沿って並設させていることから、前列用バッグ２４の展開膨張時に、各縦膨張部３２が前後方向の幅寸法を縮めるように膨張し、膨張を完了させた前列用バッグ２４に、前後方向に沿って大きなテンションが発生することとなる。 In the front row bag 24 of the embodiment, the attachment portion 35C disposed near the front end of the extension portion 39 is attached to the body 1 side at the lower portion of the front pillar portion FP. Since the attachment portion 35B disposed near the rear end is attached to the body 1 side at the upper edge side portion near the rear end of the window W3, when the front row bag 24 is inflated, the attachment portion 35C is attached. -A tension along the front-rear direction can be generated during 35B. In particular, in the front row bag 24 of the embodiment, the plurality of vertical inflatable portions 32 are arranged side by side in the front-rear direction. Therefore, when the front row bag 24 is inflated, each vertical inflatable portion 32 is in the front-rear direction. A large tension is generated along the front-rear direction in the front row bag 24 that has been inflated so as to reduce the width dimension and has been inflated.

板状部３８は、第１膨張遮蔽部３０の前縁側から車両前方側に延びるように配設される延設部３９と、第２膨張遮蔽部３１の後縁側から車両後方側に延びるように配設される延設部４０と、第１・第２膨張遮蔽部３０・３１の間におけるガス供給路部２８の下方に配設される長方形板状部４１と、から構成されている。延設部３９は、前端側と、後端側となる第１膨張遮蔽部３０の前縁側と、の上縁側となる部位に、取付部３５Ｃ・３５を配設させている。延設部４０は、略三角板系状とされて、前端側となる第２膨張遮蔽部３１の後縁近傍部位と、後端側と、の上縁側となる部位に、取付部３５Ａ・３５Ｂを配設させている。そして、前列用バッグ２４の膨張完了時に、既述したように、延設部３９の前端に配設される取付部３５Ｃと、延設部４０の後端に配設される取付部３５Ｂと、の間に、前後方向に沿ったテンションが、発生することとなる。また、延設部４０は、前列用バッグ２４と後列用バッグ４５とがともに膨張を完了させた際に、後列用バッグ４５の車外側Ｏ
に配設されて後述する第３膨張遮蔽部（後側膨張遮蔽部）５１の車外側Ｏを支持することとなる（図９参照）。長方形板状部４１は、前列用バッグ２４におけるバッグ本体２５の全体形状を確保するとともに、ガス流入部２６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、配設されている。 The plate-like portion 38 extends from the front edge side of the first expansion shielding portion 30 to the vehicle front side, and extends from the rear edge side of the second expansion shielding portion 31 to the vehicle rear side. The extending portion 40 is disposed, and a rectangular plate-like portion 41 disposed below the gas supply path portion 28 between the first and second expansion shielding portions 30 and 31. In the extended portion 39, attachment portions 35C and 35 are disposed on the front end side, the front edge side of the first expansion shielding portion 30 on the rear end side, and the upper edge side. The extending portion 40 has a substantially triangular plate system, and the attachment portions 35 A and 35 B are provided at the vicinity of the rear edge of the second expansion shielding portion 31 on the front end side, the rear end side, and the upper edge side. It is arranged. Then, when the expansion of the front row bag 24 is completed, as described above, the mounting portion 35C disposed at the front end of the extending portion 39, the mounting portion 35B disposed at the rear end of the extending portion 40, During this period, a tension along the front-rear direction is generated. In addition, the extended portion 40 has a vehicle outer side O of the rear row bag 45 when the front row bag 24 and the rear row bag 45 complete the expansion.
It will be arrange | positioned and will support the vehicle exterior O of the 3rd expansion | swelling shielding part (rear side expansion | swelling shielding part) 51 mentioned later (refer FIG. 9). The rectangular plate-like portion 41 is disposed in order to secure the overall shape of the bag body 25 in the front row bag 24 and reduce the volume of the gas inflow portion 26 to shorten the time until completion of expansion. .

区画結合部３７は、各第１・第２膨張遮蔽部３０・３１の領域内において、周縁結合部３６や長方形板状部４１の上縁側から延びるように、配設されている。これらの区画結合部３７は、第１・第２膨張遮蔽部３０・３１を複数の縦膨張部３２に区画して、膨張完了時の前列用バッグ２４におけるバッグ本体２５の厚さを規制するために、配設されている。後端側に配設される縦膨張部３２Ａの部位に配設される区画結合部３７Ａは、縦膨張部３２Ａの上端付近の前後方向の中間部位付近となる位置に、下方に突出する突出部３７ａを備えている構成である。この突出部３７ａは、縦膨張部３２Ａにおいて、前後方向の略中央部位における上端付近の部位を区画して、第１中間ピラー部Ｐ１の車内側に配設される縦膨張部３２Ａの膨張完了時の厚さ寸法を規制するために、配設されている（図７参照）。 The partition coupling portion 37 is disposed so as to extend from the upper edge side of the peripheral coupling portion 36 and the rectangular plate-shaped portion 41 in the region of each of the first and second expansion shielding portions 30 and 31. These partition coupling portions 37 partition the first and second expansion shielding portions 30 and 31 into a plurality of vertical expansion portions 32 to regulate the thickness of the bag body 25 in the front row bag 24 when the expansion is completed. Are disposed. The division coupling portion 37A disposed at the site of the longitudinally expanding portion 32A disposed on the rear end side is a projecting portion that projects downward at a position near the middle portion in the front-rear direction near the upper end of the longitudinally expanding portion 32A. 37a. The protruding portion 37a defines a portion near the upper end of the substantially central portion in the front-rear direction in the vertical expansion portion 32A, and when the expansion of the vertical expansion portion 32A disposed inside the first intermediate pillar portion P1 is completed. In order to regulate the thickness dimension of the film (see FIG. 7).

ガイド部４３は、バッグ本体２５と別体とされるとともに、可撓性を有した帯状とされて、実施形態の場合、ポリアミド糸やポリエステル糸等を使用した織布から形成されている。ガイド部４３は、後列用バッグ４５に配設される後述する連結部５９に挿通可能な帯状とされて、バッグ本体２５の車内側に配設されている。実施形態の場合、ガイド部４３は、第２膨張遮蔽部３１の後方側において、下端４３ｂ側を上端４３ａ側よりも前方側に位置させるように傾斜しつつ、上下方向に略沿うように配設されて、上下両端側をバッグ本体２５に結合させている。具体的には、ガイド部４３の上端側の部位４３ａは、取付部３５Ａとともに取付ブラケット１８を利用してインナパネル２に固定されることにより、バッグ本体２５に固定されている。下端側の部位４３ｂは、第２膨張遮蔽部３１の後縁近傍となる延設部４０の部位に、縫着されて、バッグ本体２５に固定されている。また、ガイド部４３は、前列用バッグ２４の折り畳み収納時、バッグ本体２５とともに折り畳まれて収納されることとなる。 The guide portion 43 is separated from the bag main body 25 and has a flexible belt shape. In the embodiment, the guide portion 43 is formed of a woven fabric using polyamide yarn, polyester yarn, or the like. The guide portion 43 is formed in a band shape that can be inserted into a connecting portion 59 (described later) disposed in the back row bag 45, and is disposed inside the bag body 25. In the case of the embodiment, the guide portion 43 is disposed on the rear side of the second expansion shielding portion 31 so as to be substantially along the vertical direction while being inclined so that the lower end 43b side is positioned on the front side with respect to the upper end 43a side. Thus, the upper and lower ends are coupled to the bag body 25. Specifically, the portion 43a on the upper end side of the guide portion 43 is fixed to the bag body 25 by being fixed to the inner panel 2 using the mounting bracket 18 together with the mounting portion 35A. The lower end side portion 43 b is sewn and fixed to the bag body 25 at a portion of the extending portion 40 that is in the vicinity of the rear edge of the second expansion shielding portion 31. Further, the guide portion 43 is folded and stored together with the bag body 25 when the front row bag 24 is folded and stored.

後列用バッグ４５は、バッグ本体４６と、バッグ本体４６の前縁近傍に配設されて前列用バッグ２４のガイド部４３と連結される連結部５９と、から構成されている。バッグ本体４６は、前列用バッグ２４のバッグ本体２５と同様に、ポリアミド糸等を使用した袋織りにより製造されている。バッグ本体４６は、図１・６に示すように、上縁４６ａ側に形成される後述する取付部５５の部位で、Ｗ３の上縁側におけるボディ１側のインナパネル２に固定されるとともに、インフレーター１３からの膨張用ガスを流入させて、折り畳み状態から展開して収納位置から下方に突出しつつ、第２中間ピラー部Ｐ２とリヤピラー部ＲＰとの間に配設される窓Ｗ３の車内側を覆うように、展開膨張する構成である。実施形態の場合、後列用バッグ４５は、三列目の座席に配設された荷重センサや圧力検知センサ等からなる乗員着座検知センサが、乗員の着座を検知した場合にのみ、エアバッグ作動回路を作動させて、展開膨張する構成とされている。また、後列用バッグ４５のバッグ本体４６は、図４・５に示すように、車内側壁部４７ａと車外側壁部４７ｂとを離すようにして、膨張用ガスＧ２を内部に流入可能なガス流入部４７と、膨張用ガスを流入させない非流入部５４と、から構成されている。 The rear row bag 45 includes a bag main body 46 and a connecting portion 59 that is disposed near the front edge of the bag main body 46 and is connected to the guide portion 43 of the front row bag 24. The bag body 46 is manufactured by bag weaving using polyamide yarn or the like, like the bag body 25 of the front row bag 24. As shown in FIGS. 1 and 6, the bag body 46 is fixed to the inner panel 2 on the body 1 side on the upper edge side of the W3 at a portion of a mounting portion 55 described later formed on the upper edge 46a side. The expansion gas from 13 is introduced, and the vehicle interior of the window W3 disposed between the second intermediate pillar portion P2 and the rear pillar portion RP is covered while unfolding from the folded state and projecting downward from the storage position. Thus, it is the structure which expand | swells and expands. In the case of the embodiment, the rear row bag 45 is an airbag operation circuit only when the occupant seating detection sensor composed of a load sensor, a pressure detection sensor, and the like disposed in the third row seat detects the seating of the occupant. Is configured to expand and expand. Further, as shown in FIGS. 4 and 5, the bag main body 46 of the rear row bag 45 has a gas inflow that allows the inflation gas G2 to flow into the interior by separating the vehicle interior side wall 47a and the vehicle exterior wall 47b. It is comprised from the part 47 and the non-inflow part 54 which does not flow in the gas for expansion | swelling.

ガス流入部４７は、ガス供給路部４９、ガス流入口部５０、及び、後側膨張遮蔽部としての第３膨張遮蔽部５１、から構成されている。 The gas inflow portion 47 includes a gas supply passage portion 49, a gas inflow port portion 50, and a third expansion shielding portion 51 as a rear side expansion shielding portion.

ガス供給路部４９は、図４に示すように、バッグ本体４６の上縁４６ａ側で、車両Ｖの前後方向に沿うように配設されており、インフレーター１３から吐出される膨張用ガスＧ２を、ガス供給路部４９の下方に配設される第３膨張遮蔽部５１に案内する構成である。ガス供給路部４９の前後方向における中央から、若干、前方側にずれた位置には、インフレーター１３と接続されるガス流入口部５０が、ガス供給路部４９と連通されて、ガス供給路部４９から上方に突出するように、配設されている。ガス流入口部５０は、実施形態の場合、後端５０ａ側を開口されている。そして、ガス流入口部５０は、クランプ１６を利用して、インフレーター１３に連結されることとなる。 As shown in FIG. 4, the gas supply passage portion 49 is disposed on the upper edge 46 a side of the bag body 46 along the front-rear direction of the vehicle V, and the expansion gas G 2 discharged from the inflator 13 is supplied. In this configuration, the gas is guided to the third expansion shield 51 disposed below the gas supply passage 49. A gas inlet 50 connected to the inflator 13 is communicated with the gas supply passage 49 at a position slightly shifted forward from the center of the gas supply passage 49 in the front-rear direction. 49 so as to protrude upward from 49. In the case of the embodiment, the gas inlet 50 is opened on the rear end 50a side. The gas inlet 50 is connected to the inflator 13 using the clamp 16.

第３膨張遮蔽部５１は、バッグ本体４６の膨張完了時において、三列目の座席Ｓ３の側方に配設される窓Ｗ３の車内側を覆う部位であり、その領域内に、後述する区画結合部５７により区画されて、それぞれ、上下方向に沿って配設される２つの縦膨張部５２Ａ・５２Ｂを、前後に並設させて構成されている。 The third expansion shield 51 is a portion that covers the vehicle interior side of the window W3 disposed on the side of the seat S3 in the third row when the expansion of the bag body 46 is completed. Two vertical expansion portions 52A and 52B that are partitioned by the coupling portion 57 and are arranged along the vertical direction are arranged in parallel in the front-rear direction.

非流入部５４は、車内側壁部４７ａと車外側壁部４７ｂとを結合させた構成とされており、実施形態の場合、取付部５５、周縁結合部５６、及び、区画結合部５７、から構成されている。周縁結合部５６は、バッグ本体４６の外周縁の部位において、ガス流入部４７の周囲を囲むように、配設されている。 The non-inflow portion 54 has a configuration in which the vehicle inner side wall portion 47a and the vehicle outer side wall portion 47b are combined. In the case of the embodiment, the non-inflow portion 54 includes a mounting portion 55, a peripheral edge coupling portion 56, and a partition coupling portion 57. Has been. The peripheral coupling portion 56 is disposed so as to surround the periphery of the gas inflow portion 47 at the outer peripheral portion of the bag body 46.

取付部５５は、バッグ本体４６の上縁４６ａ側における前後両端近傍となる部位から、上方へ突出するように、２個配設されている。各取付部５５Ａ・５５Ｂは、図１・６に示すごとく、実施形態の場合、前列用バッグ２３の取付部３５Ａ・３５Ｂとともに、取付ブラケット１８及び取付ボルト１９を使用して、ボディ１側のインナパネル２に固定されている。 Two mounting portions 55 are disposed so as to protrude upward from the portions near the front and rear ends on the upper edge 46a side of the bag body 46. As shown in FIGS. 1 and 6, each of the mounting portions 55 A and 55 B uses the mounting bracket 18 and the mounting bolt 19 together with the mounting portions 35 A and 35 B of the front row bag 23 in the embodiment. It is fixed to the panel 2.

区画結合部５７は、第３膨張遮蔽部５１の領域内において、第３膨張遮蔽部５１を２つの縦膨張部５２Ａ・５２Ｂに区画して、膨張完了時の後列用バッグ４５におけるバッグ本体４６の厚さを規制するために、配設されている。区画結合部５７は、縦膨張部５２Ａ・５２Ｂを区画するように上下方向に沿って配設される縦区画部５７ａと、縦区画部５７ａの上端から前方に突出するように前後方向に沿って配設される横区画部５７ｂと、を備えて構成されている。横区画部５７ｂは、ガス供給路部４９の下縁側を構成するとともに、縦膨張部５２Ａの上端側を閉塞する構成である。 The partition coupling portion 57 partitions the third expansion shielding portion 51 into two vertical expansion portions 52A and 52B in the region of the third expansion shielding portion 51, and the bag main body 46 in the rear row bag 45 at the completion of the expansion. Arranged to regulate the thickness. The partition coupling portion 57 includes a vertical partition portion 57a disposed along the vertical direction so as to partition the vertical expansion portions 52A and 52B, and a front-rear direction so as to protrude forward from the upper end of the vertical partition portion 57a. And a horizontal partition portion 57b to be disposed. The horizontal partition 57b constitutes the lower edge side of the gas supply path 49 and closes the upper end side of the vertical expansion portion 52A.

連結部５９は、バッグ本体４６と別体とされるもので、実施形態の場合、ポリアミド糸やポリエステル糸等を使用した帯状の織布から形成されて、バッグ本体４６の前端近傍における下縁側の部位に、配設されている。そして、連結部５９は、長手方向の両端をバッグ本体４６に縫着させて、前列用バッグ２４に配設されるガイド部４３を挿通可能な輪状とされており、実施形態の場合、ガイド部４３に対して相互に摺動可能に連結されている。具体的には、連結部５９は、前列用バッグ２４のみを展開膨張させる際に、前列用バッグ２４のみの展開膨張を許容するとともに、前列用バッグ２４と後列用バッグ４５とをともに展開膨張させる際に、後列用バッグ４５の下方への展開に伴ってガイド部４３の下端４３ｂ付近まで摺動可能とされて、後列用バッグ４５の膨張完了時において、連結部５９から後列用バッグの後端側に配設される取付部５５Ｂにかけてテンションを発生させるように、ガイド部４３に連結される構成である。 The connecting portion 59 is separated from the bag main body 46. In the case of the embodiment, the connecting portion 59 is formed of a strip-shaped woven fabric using polyamide yarn, polyester yarn, or the like, and on the lower edge side in the vicinity of the front end of the bag main body 46. It is arranged at the site. And the connection part 59 is made into the ring shape which can sew the both ends of a longitudinal direction to the bag main body 46, and the guide part 43 arrange | positioned by the bag 24 for front rows can be penetrated. 43 are slidably connected to each other. Specifically, when only the front row bag 24 is expanded and inflated, the connecting portion 59 allows only the front row bag 24 to be expanded and inflated, and expands and expands both the front row bag 24 and the rear row bag 45 together. When the rear row bag 45 is expanded downward, it can slide to the vicinity of the lower end 43b of the guide portion 43, and when the rear row bag 45 is completely inflated, the rear end of the rear row bag is connected from the connecting portion 59. It is the structure connected with the guide part 43 so that a tension | tensile_strength may be generated over the attaching part 55B arrange | positioned by the side.

次に、実施形態のエアバッグ装置Ｍの車両Ｖへの搭載について説明する。バッグ本体４６に予め連結部５９を縫着させて、後列用バッグ４５を形成しておく。また、ガイド部４３の下端４３ｂも、予め、バッグ本体２５に縫着させておく。まず、平らに展開した後列用バッグ４５を、連結部５９の部位を除いて、図４の二点鎖線に示すように、前後方向に沿うような折目Ｃ２を付けて、下縁４６ｂ側を上縁４６ａ側に接近させるように蛇腹折りし、折り崩れ防止用の図示しないラッピング材により、所定箇所をくるんでおく。前列用バッグ２４も、同様に、平らに展開した状態から、図２の二点鎖線に示すように、前後方向に沿うような折目Ｃ１を付けて、下縁２５ｂ側を上縁２５ａ側に接近させるように蛇腹折りする。このとき、ガイド部４３もバッグ本体２５とともに蛇腹折りされるが、バッグ本体２５を上縁２５ａ近傍まで折り畳んだ状態で、ガイド部４３を連結部５９に挿通させ、ガイド部４３と連結部５９とを連結しておく。すなわち、連結部５９は、前・後列用バッグ２４・４５の折り畳み収納時において、前列用バッグ２４の上端近傍（ガイド部４３の上端４３ａ近傍）に、配設されることとなる。そして、折り畳まれた前列用バッグ２４も、折り崩れ防止用の図示しないラッピング材により、所定箇所をくるんでおく。 Next, the mounting of the airbag apparatus M of the embodiment on the vehicle V will be described. The back portion bag 45 is formed by previously sewing the connecting portion 59 to the bag body 46. The lower end 43b of the guide portion 43 is also sewn to the bag body 25 in advance. First, the rear row bag 45 that has been flattened is attached with a crease C2 along the front-rear direction, as shown by the two-dot chain line in FIG. The bellows is folded so as to approach the upper edge 46a, and a predetermined portion is wrapped with a wrapping material (not shown) for preventing collapse. Similarly, the front row bag 24 is also provided with a crease C1 extending in the front-rear direction, as shown by a two-dot chain line in FIG. 2, from the flatly developed state, and the lower edge 25b side to the upper edge 25a side. Fold the bellows close together. At this time, the guide portion 43 is also bellows folded together with the bag body 25, but with the bag body 25 folded to the vicinity of the upper edge 25a, the guide portion 43 is inserted into the connecting portion 59, and the guide portion 43 and the connecting portion 59 Are connected. That is, the connecting portion 59 is disposed near the upper end of the front row bag 24 (near the upper end 43a of the guide portion 43) when the front and rear row bags 24 and 45 are folded and stored. The folded front row bag 24 is also wrapped around a predetermined place by a wrapping material (not shown) for preventing collapse.

そして、前列用バッグ２４の取付部３５Ａ・３５Ｂを、それぞれ、後列用バッグ４５の取付部５５Ａ・５５Ｂの車外側Ｏに位置させるように、取付部３５Ａ・３５Ｂ・５５Ａ・５５Ｂ相互を重ねる。このとき、取付部３５Ａ・５５Ａ間には、ガイド部４３の上端側部位４３ａが介在されることとなる。そして、各取付ブラケット３５・５５に、取付ブラケット１８を取り付けておく。なお、取付部３５Ａ・上端側部位４３ａ・取付部５５Ａ、及び、各取付部３５Ｂ・５５Ｂは、それぞれ、相互に重ねられた状態で、取付ブラケット１８に挟持されることとなる。また、クランプ１２を利用しつつ、前列用バッグ２４のガス流入口部２９にインフレーター９を連結させ、同様に、クランプ１６を利用して、後列用バッグ４５のガス流入口部５０にインフレーター１３を連結させ、各インフレーター９・１３の周囲に、取付ブラケット１０・１４を取り付けて、各インフレーター９・１３を、それぞれ、前列用・後列用バッグ２４・４５に組み付けて、エアバッグ組付体を形成しておく。 Then, the attachment portions 35A, 35B, 55A, and 55B are overlapped so that the attachment portions 35A and 35B of the front row bag 24 are positioned on the vehicle exterior side O of the attachment portions 55A and 55B of the rear row bag 45, respectively. At this time, the upper end side portion 43a of the guide portion 43 is interposed between the attachment portions 35A and 55A. And the attachment bracket 18 is attached to each attachment bracket 35 * 55. Note that the attachment portion 35A, the upper end side portion 43a, the attachment portion 55A, and the attachment portions 35B and 55B are sandwiched by the attachment bracket 18 in a state of being overlapped with each other. Further, the inflator 9 is connected to the gas inlet port 29 of the front row bag 24 while using the clamp 12, and the inflator 13 is similarly connected to the gas inlet portion 50 of the rear row bag 45 using the clamp 16. Attach mounting brackets 10 and 14 around each inflator 9 and 13 and assemble each inflator 9 and 13 to front and rear row bags 24 and 45 to form an airbag assembly. Keep it.

その後、各取付ブラケット１０・１４・１８をインナパネル２の所定位置に配置させてボルト１１・１５・１９止めし、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９・１３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、ピラーガーニッシュ３やルーフヘッドライニング４をボディ１に取り付け、さらに、ピラーガーニッシュ５・６・７をボディ１に取り付ければ、エアバッグ装置Ｍを車両Ｖに搭載することができる。 Thereafter, the mounting brackets 10, 14, and 18 are arranged at predetermined positions on the inner panel 2 to be fastened with bolts 11, 15, and 19, and the airbag assembly is attached to the body 1. Next, lead wires (not shown) extending from a predetermined control device for inflator operation are connected to the inflators 9 and 13, the pillar garnish 3 and the roof head lining 4 are attached to the body 1, and the pillar garnishes 5, 6, and 7 are attached. If attached to the body 1, the airbag device M can be mounted on the vehicle V.

そして、エアバッグ装置Ｍの車両Ｖへの搭載後、三列目の座席Ｓ３に乗員が着座しない状態では、インフレーター９のみが作動されて、図７に示すごとく、前列用バッグ２４のみが展開膨張することとなる。三列目の座席Ｓ３に乗員が着座した状態では、インフレーター９・１３が作動して、図８に示すごとく、前列用・後列用バッグ２４・４５が、ともに展開膨張することとなる。通常、三列目の座席Ｓ３に乗員が着座した状態で、運転者がいる一列目あるいは二列目の座席Ｓ１・Ｓ２に運転者を含めた乗員が着座していないことは考えられないことから、実施形態のエアバッグ装置Ｍでは、後列用バッグ４５の展開膨張時には、必ず前列用バッグ２４も展開膨張することとなる。 Then, after the airbag device M is mounted on the vehicle V, in a state where no occupant is seated on the third row of seats S3, only the inflator 9 is activated, and only the front row bag 24 is deployed and inflated as shown in FIG. Will be. In the state where the occupant is seated in the third row of seats S3, the inflators 9 and 13 are operated, and the front row and rear row bags 24 and 45 are both expanded and inflated as shown in FIG. Usually, it is unlikely that no occupant including the driver is seated in the first row or the second row of seats S1 and S2 where the driver is seated in the seat S3 of the third row. In the airbag apparatus M of the embodiment, when the rear row bag 45 is deployed and inflated, the front row bag 24 is always deployed and inflated.

インフレーター９・１３が作動されれば、インフレーター９からの膨張用ガスＧ１が、図２の二点鎖線に示すように、ガス流入口部２９からガス供給路部２８内を流れ、さらに、第１・第２膨張遮蔽部３０・３１内に流入し、前列用バッグ２４の第１・第２膨張遮蔽部３０・３１が、折りを解消させつつ膨張し始める。同時に、インフレーター１３からの膨張用ガスＧ２が、図４の二点鎖線に示すように、ガス流入口部５０からガス供給路部４９内を流れ、さらに、第３膨張遮蔽部５１内に流入して、後列用バッグ４５の第３膨張遮蔽部５１が、折りを解消させつつ膨張し始める。そして、エアバッグ２３（前列用・後列用バッグ２４・４５）が、図示しないラッピング材を破断させ、さらに、ピラーガーニッシュ３とルーフヘッドライニング４との下縁で構成されるエアバッグカバー２０を押し開いて下方へ突出しつつ、図１の二点鎖線及び図８〜１０に示すごとく、窓Ｗ１・Ｗ２・Ｗ３、第１・第２中間ピラー部Ｐ１・Ｐ２、及び、リヤピラー部ＲＰの車内側を覆うように、大きく膨張することとなる。 When the inflators 9 and 13 are operated, the expansion gas G1 from the inflator 9 flows from the gas inlet 29 into the gas supply path 28 as shown by the two-dot chain line in FIG. -It flows in into the 2nd expansion shielding part 30 * 31, and the 1st, 2nd expansion shielding part 30 * 31 of the bag 24 for front rows begins to expand, canceling | folding. At the same time, the expansion gas G2 from the inflator 13 flows from the gas inlet 50 into the gas supply passage 49 and then into the third expansion shield 51 as shown by the two-dot chain line in FIG. Thus, the third expansion shielding part 51 of the rear row bag 45 starts to expand while eliminating the folding. Then, the airbag 23 (front row / back row bags 24 and 45) breaks the wrapping material (not shown), and further pushes the airbag cover 20 constituted by the lower edges of the pillar garnish 3 and the roof head lining 4. While opening and projecting downward, as shown in the two-dot chain line of FIG. 1 and FIGS. 8 to 10, the insides of the windows W 1, W 2, W 3, the first and second intermediate pillar parts P 1, P 2, and the rear pillar part RP It will expand greatly so as to cover it.

そして、実施形態のエアバッグ装置Ｍでは、展開膨張時に三列目の座席Ｓ３の側方に配設される窓Ｗ３の車内側を覆う後列用バッグ４５を、展開膨張時に一列目・二列目の座席Ｓ１・Ｓ２の側方に配設される窓Ｗ１・Ｗ２の車内側を覆う前列用バッグ２４と、別体としているものの、後列用バッグ４５は、展開膨張時の前端近傍の下縁側の部位に配設される連結部５９により、前列用バッグ２４と連結されており、展開膨張完了時、前縁側の下端近傍部位を、膨張を完了させた前列用バッグ２４のガイド部４３の下端４３ｂ付近に、連結部５９を介して連結された状態とし、そして、連結部５９から取付部５５Ｂにかけてテンションを発生可能に、膨張を完了させることとなる。その結果、三列目の座席Ｓ３に着座した乗員の頭部が車外側に大きく移動した場合にも、連結部５９から斜め後方の取付部５５Ｂにかけてのテンションを発生させた後列用バッグ４５の第３膨張遮蔽部（後側膨張遮蔽部）５１により、乗員の頭部を車外側へ移動させることなく、拘束することができて、乗員の頭部を的確に保護することが可能となる。 In the airbag apparatus M of the embodiment, the rear row bag 45 covering the vehicle interior side of the window W3 disposed on the side of the third row seat S3 during deployment is inflated with the first row and second row during deployment. Although the front row bag 24 that covers the vehicle interior side of the windows W1 and W2 disposed on the sides of the seats S1 and S2 is separate from the front row bag 45, the rear row bag 45 is located on the lower edge side near the front end when deployed. It is connected to the front row bag 24 by the connecting portion 59 disposed in the part, and when the expansion and inflation is completed, the lower end portion 43b of the guide part 43 of the front row bag 24 in which the front end side bag 24 has been completely inflated. The expansion is completed in such a manner that it is connected to the vicinity via the connecting portion 59 and tension can be generated from the connecting portion 59 to the attachment portion 55B. As a result, even when the head of the occupant seated in the third row of seats S3 moves greatly to the outside of the vehicle, the rear row bag 45 that generates tension from the connecting portion 59 to the diagonally rear mounting portion 55B. The three expansion shielding portions (rear side expansion shielding portions) 51 can restrain the occupant's head without moving the occupant's head to the outside of the vehicle, and can accurately protect the occupant's head.

従って、実施形態の頭部保護エアバッグ装置Ｍでは、三列目の座席Ｓ３に着座した乗員の頭部を的確に保護することができる。 Therefore, in the head protection airbag device M of the embodiment, it is possible to accurately protect the heads of the occupants seated in the third row of seats S3.

また、実施形態のエアバッグ装置Ｍでは、エアバッグ２３が、それぞれ別体とされる前列用バッグ２４と後列用バッグ４５とから構成されており、三列目の座席Ｓ３に乗員が着座していない状態では、前列用バッグ２４のみを展開膨張させる構成であるが、実施形態のエアバッグ装置Ｍでは、後列用バッグ４５を前列用バッグ２４に連結させる連結部５９が、前列用バッグ２４に配設されるガイド部４３に対して相対的に摺動可能として、前列用バッグ２４のみの展開膨張を許容するように、ガイド部４３に連結されていることから、連結部５９により前列用バッグ２４と後列用バッグ４５が連結されている構成であっても、前列用バッグ２４のみを円滑に展開膨張させることができる。特に、実施形態のエアバッグ装置Ｍでは、連結部５９を、折り畳まれた前列用バッグ２４の上端近傍部位（ガイド部４３の上端４３ａ近傍部位）に位置させるように、後列用バッグ４５が折り畳まれて収納されていることから、前列用バッグ２４のみが展開膨張する際に、連結部５９が、展開する前列用バッグ２４（ガイド部４３）の影響を受け難く、前列用バッグ２４の膨張に伴って後列用バッグ４５が展開することを極力抑えることができる。 Further, in the airbag apparatus M of the embodiment, the airbag 23 is composed of a front row bag 24 and a rear row bag 45 that are separated from each other, and an occupant is seated in the third row of seats S3. In the air bag apparatus M of the embodiment, the connecting portion 59 for connecting the rear row bag 45 to the front row bag 24 is arranged in the front row bag 24. The front row bag 24 is connected to the guide portion 43 so as to be slidable relative to the provided guide portion 43 so that only the front row bag 24 is allowed to expand and expand. Even if the rear row bag 45 is connected, only the front row bag 24 can be smoothly deployed and inflated. In particular, in the airbag apparatus M of the embodiment, the rear row bag 45 is folded so that the connecting portion 59 is positioned in the vicinity of the upper end of the folded front row bag 24 (the vicinity of the upper end 43a of the guide portion 43). Therefore, when only the front row bag 24 is expanded and inflated, the connecting portion 59 is hardly affected by the front row bag 24 (guide portion 43) to be expanded. It is possible to suppress the rear row bag 45 from being developed as much as possible.

また、実施形態のエアバッグ装置Ｍでは、前列用バッグ２４の第１・第２膨張遮蔽部３０・３１が、それぞれ、複数の縦膨張部３２を、前後方向に沿って並設させた構成とされていることから、前列用バッグ２４の展開膨張時に、各縦膨張部３２が前後方向の幅寸法を縮めるように膨張することとなる。すなわち、ガイド部４３を前方へ移動させるように前列用バッグ２４が膨張を完了させることとなり、ガイド部４３自体が、連結部５９を前方へ引っ張るような態様となる。そのため、後列用バッグ４５の膨張完了時において、連結部５９から取付部５５Ｂにかけて、一層大きなテンションが発生することとなる。勿論、第１・第２膨張遮蔽部を縦膨張部から形成しない構成の前列用バッグであっても、エアバッグの膨張完了時に、連結部５９により、後列用バッグ４５の前縁側における下端近傍の部位が、後方側へ引っ張られるように移動することを抑えることができて、連結部５９から取付部５５Ｂにかけてテンションを発生させることができ、乗員の頭部を支障なく拘束することができる。しかし、乗員頭部の拘束性能を高める見地からは、実施形態の前列用バッグ２４のごとく、膨張遮蔽部３０・３１を、複数の縦膨張部３２を前後方向に沿って並設させた構成とすることが好ましい。 Further, in the airbag device M of the embodiment, the first and second inflating shielding portions 30 and 31 of the front row bag 24 are configured such that a plurality of longitudinal inflating portions 32 are juxtaposed along the front-rear direction, respectively. Therefore, when the front row bag 24 is expanded and inflated, each vertical expansion portion 32 expands so as to reduce the width dimension in the front-rear direction. That is, the front row bag 24 completes inflating so as to move the guide portion 43 forward, and the guide portion 43 itself pulls the connecting portion 59 forward. For this reason, when the rear row bag 45 is completely inflated, a larger tension is generated from the connecting portion 59 to the attachment portion 55B. Of course, even if the front row bag has a configuration in which the first and second inflating shields are not formed from the vertical inflating portion, the connection portion 59 closes the lower end near the front edge of the rear row bag 45 when the airbag is completely inflated. The part can be prevented from moving so as to be pulled rearward, tension can be generated from the connecting part 59 to the attachment part 55B, and the head of the occupant can be restrained without hindrance. However, from the standpoint of improving the restraining performance of the occupant head, as in the front row bag 24 of the embodiment, the inflating shielding portions 30 and 31 are arranged in parallel with the plurality of longitudinal inflating portions 32 along the front-rear direction. It is preferable to do.

なお、実施形態のエアバッグ装置Ｍでは、ガイド部４３が、下端４３ｂ側を上端４３ａ側よりも前方側に位置させるように、傾斜して配設されていることから、後列用バッグ４５の展開膨張に伴って連結部５９がガイド部４３に沿って下方へ移動する際に、連結部５９がガイド部４３に牽引されて前方に引っ張られるように、下方移動することとなり、後列用バッグ４５の膨張完了時に、連結部５９と取付部５５Ｂとの間に、一層大きなテンションを発生させることができる。勿論、このような点を考慮しなければ、ガイド部４３を上下方向に沿うように配設させる構成としてもよい。また、実施形態のエアバッグ装置Ｍでは、ガイド部４３と連結部５９とを、ともに、バッグ本体２５・４６と別体とした織布から形成しているが、ガイド部４３及び連結部５９の形状はこれに限られるものではなく、例えば、図１１の前列用バッグ２４Ａに示すごとく、第２膨張遮蔽部３１の後縁近傍に、上下方向に沿って配設されるスリット６０・６０を２本並設させ、スリット６０・６０間の部位を、ガイド部６１とするように、構成してもよい。また、ガイド部として、織布から形成された帯状のものではなく、例えばロープ等の紐状物や、前列用バッグとともに折り畳んで収納可能な可撓性を有したワイヤ状のもの等を使用してもよい。勿論、連結部も、紐状物を輪状に形成したものを使用してもよく、さらには、連結部として、後列用バッグの周縁結合部における前端近傍における下縁側の部位に、ガイド部を挿通可能な穴を形成して、周縁にハトメ等を配設させた構成のものを使用してもよい。 In the airbag apparatus M according to the embodiment, the guide portion 43 is disposed so as to be inclined so that the lower end 43b side is positioned forward of the upper end 43a side. When the connecting portion 59 moves downward along the guide portion 43 along with the expansion, the connecting portion 59 moves downward so that the connecting portion 59 is pulled by the guide portion 43 and pulled forward. When the expansion is completed, a larger tension can be generated between the connecting portion 59 and the attachment portion 55B. Of course, if such a point is not taken into consideration, the guide portion 43 may be arranged along the vertical direction. In the airbag apparatus M of the embodiment, the guide portion 43 and the connecting portion 59 are both formed from a woven fabric that is separate from the bag main bodies 25 and 46. The shape is not limited to this. For example, as shown in the front row bag 24A in FIG. 11, two slits 60 and 60 arranged in the vertical direction are provided in the vicinity of the rear edge of the second expansion shielding portion 31. You may comprise so that the site | part between the slits 60 and 60 may be made into the guide part 61 by arranging this in parallel. In addition, the guide portion is not a belt-shaped one formed from a woven fabric, for example, a cord-like material such as a rope, or a flexible wire-like material that can be folded and stored together with a front row bag. May be. Of course, the connecting portion may be a string-like object formed in a ring shape, and further, as the connecting portion, the guide portion is inserted into the lower edge side portion in the vicinity of the front end of the peripheral edge connecting portion of the rear row bag. You may use the thing of the structure which formed the possible hole and arrange | positioned the eyelet etc. in the periphery.

さらに、実施形態のエアバッグ装置Ｍでは、ガイド部４３を、略上下方向に沿った帯状として、第２膨張遮蔽部３１の後縁側の非流入部の部位（延設部４０）に配設させた構成である。すなわち、実施形態の前列用バッグ２４では、ガイド部４３が、膨張完了時に乗員の頭部を保護する部位であるガス流入部４７（第１・第２膨張遮蔽部３０・３１）から後方側に外れた部位に配設されることとなるため、エアバッグ２３の展開膨張時に、ガイド部４３や、ガイド部４３と連結される連結部５９が、一列目や二列目の座席Ｓ１・Ｓ２に着座した乗員と干渉することを抑えることができて、好ましい。勿論、このような点を考慮しなければ、ガイド部を、第２膨張遮蔽部３１の前縁側の長方形板状部４１の部位や、さらには、第１膨張遮蔽部３０の前縁側の延設部３９の部位に配設させる構成としてもよい。 Furthermore, in the airbag apparatus M of the embodiment, the guide portion 43 is disposed in a non-inflow portion portion (extension portion 40) on the rear edge side of the second expansion shielding portion 31 as a belt shape substantially along the vertical direction. It is a configuration. That is, in the front row bag 24 of the embodiment, the guide portion 43 is located rearward from the gas inflow portion 47 (first and second inflating shielding portions 30 and 31), which is a portion that protects the occupant's head when inflation is completed. Since the airbag 23 is disposed at the disengaged portion, the guide portion 43 and the connecting portion 59 connected to the guide portion 43 are attached to the first row and second row seats S1 and S2 when the airbag 23 is deployed and inflated. Interference with the seated occupant can be suppressed, which is preferable. Of course, if such a point is not taken into consideration, the guide portion is extended to the portion of the rectangular plate-like portion 41 on the front edge side of the second expansion shielding portion 31 or further to the front edge side of the first expansion shielding portion 30. It is good also as a structure arrange | positioned in the site | part of the part 39. FIG.

さらにまた、実施形態のエアバッグ装置Ｍでは、後列用バッグ４５の第３膨張遮蔽部５１が、図９に示すごとく、膨張完了時に、車外側Ｏを、前列用バッグ２４の延設部４０に支持される構成である。そのため、三列目の座席Ｓ３に着座した乗員の頭部が車外側Ｏに大きく移動しても、乗員の頭部を、一層確実に拘束することができる。また、上記構成の頭部保護エアバッグ装置では、前列用バッグ２４における後端側の取付部３５Ｂ（延設部４０の後端側に配設される取付部３５Ｂ）を、延設部を配設させない構成のものと比較して、車両後方側に位置させることができることから、延設部４０を配設させない構成のものと比較して、前列用バッグ２４の膨張完了時に、前後方向に沿うように大きなテンションが発生することとなる。そのため、一列目あるいは二列目の座席Ｓ１・Ｓ２に着座した乗員の頭部が車外側に大きく移動した場合にも、第１・第２膨張遮蔽部３０・３１により、乗員の頭部を確実に拘束することができて、好ましい。なお、実施形態のエアバッグ装置Ｍでは、前列用バッグのみを展開膨張させた際に、図７に示すごとく、延設部４０が、三列目の座席Ｓ３の側方に配設される窓Ｗ３の車内側を覆うこととなるが、延設部４０は、膨張用ガスを流入させない非流入部３４から構成されており、前列用バッグ２４の展開膨張時に、薄い状態で展開することから、図７の二点鎖線や図９の一点鎖線で示すごとく、三列目の座席Ｓ３を、不使用時に、窓Ｗ３の車内側Ｉに近接して立てるように格納している場合にも、展開する延設部４０が、格納されている三列目の座席Ｓ３と干渉することを極力抑えることができ、前列用バッグ２４を円滑に展開膨張させることができる。 Furthermore, in the airbag apparatus M of the embodiment, as shown in FIG. 9, when the third inflating shielding part 51 of the rear row bag 45 is inflated, the vehicle outer side O is connected to the extending portion 40 of the front row bag 24. It is a supported configuration. Therefore, even if the occupant's head seated in the third row of seats S3 moves greatly to the vehicle exterior O, the occupant's head can be more reliably restrained. Further, in the head protection airbag device having the above-described configuration, the mounting portion 35B on the rear end side (the mounting portion 35B disposed on the rear end side of the extending portion 40) in the front row bag 24 is arranged with the extending portion. Compared to the configuration in which the extension portion 40 is not disposed, the front row bag 24 is completed in the front-rear direction when the expansion of the front row bag 24 is completed. As a result, a large tension is generated. Therefore, even when the head of the occupant seated in the first row or second row of seats S1 and S2 moves greatly to the outside of the vehicle, the first and second expansion shielding portions 30 and 31 ensure the occupant's head. Can be constrained to be preferable. In the airbag apparatus M of the embodiment, when only the front row bag is deployed and inflated, as shown in FIG. 7, the extended portion 40 is a window disposed on the side of the third row of seats S3. Although it will cover the inside of the vehicle of W3, the extending part 40 is composed of a non-inflow part 34 that does not allow the inflating gas to flow in, and is deployed in a thin state when the front row bag 24 is inflated. As shown by the two-dot chain line in FIG. 7 and the one-dot chain line in FIG. 9, the seat S3 in the third row is also deployed when stood close to the vehicle interior I of the window W3 when not in use. It is possible to suppress the extending portion 40 to interfere with the stored third row seat S3 as much as possible, and the front row bag 24 can be smoothly expanded and inflated.

本発明の一実施形態である頭部保護エアバッグ装置を車内側から見た概略正面図である。It is the schematic front view which looked at the head protection airbag apparatus which is one Embodiment of this invention from the vehicle inside. 実施形態の頭部保護エアバッグ装置で使用する前列用バッグを平らに展開した状態を示す正面図である。It is a front view which shows the state which expand | deployed the front row bag used with the head protection airbag apparatus of embodiment flatly. 図２のIII−III部位の断面図である。It is sectional drawing of the III-III site | part of FIG. 実施形態の頭部保護エアバッグ装置で使用する後列用バッグを平らに展開した状態を示す正面図である。It is a front view which shows the state which expand | deployed the back row bag used with the head protection airbag apparatus of embodiment flatly. 図４のＶ−Ｖ部位の断面図である。It is sectional drawing of the VV site | part of FIG. 図１のVI−VI部位の拡大断面図である。It is an expanded sectional view of the VI-VI site | part of FIG. 実施形態の頭部保護エアバッグ装置において、前列用バッグのみが膨張を完了させた状態を示す車内側から見た概略正面図である。In the head protection airbag device of an embodiment, it is the outline front view seen from the car inner side which shows the state where only the bag for front rows completed inflation. 実施形態の頭部保護エアバッグ装置において、前列用バッグと後列用バッグとが膨張を完了させた状態を示す車内側から見た概略正面図である。In the head protection airbag device of an embodiment, it is the outline front view seen from the car inside which shows the state where the bag for front rows and the bag for back rows completed expansion. 実施形態の頭部保護エアバッグ装置において、エアバッグの膨張完了状態を示す断面図であり、後列用バッグの部位を示す概略縦断面図である。In the head protection airbag device of an embodiment, it is a sectional view showing the completion state of inflation of an airbag, and is a schematic longitudinal sectional view showing a part of a back row bag. 実施形態の頭部保護エアバッグ装置において、エアバッグの膨張完了状態を示す断面図であり、後列用バッグの部位を示す概略横断面図である。In the head protection airbag device of an embodiment, it is a sectional view showing the completion state of inflation of an airbag, and is a schematic cross-sectional view showing a part of a back row bag. 前列用バッグの変形例を示す部分拡大正面図である。It is the elements on larger scale which show the modification of the bag for front rows.

Explanation of symbols

１…ボディ、
９・１３…インフレーター、
２３…エアバッグ、
２４…前列用バッグ、
３０…第１膨張遮蔽部（前側膨張遮蔽部）、
３１…第２膨張遮蔽部（前側膨張遮蔽部）、
４０…延設部、
４３…ガイド部、
４５…後列用バッグ、
５９…連結部、
Ｓ１・Ｓ２・Ｓ３…座席、
Ｗ１・Ｗ２・Ｗ３…窓、
Ｖ…車両、
Ｍ…頭部保護エアバッグ装置。 1 ... Body
9.13 ... Inflator,
23 ... Airbag,
24. Front row bag,
30 ... 1st expansion shielding part (front side expansion shielding part),
31 ... 2nd expansion shielding part (front side expansion shielding part),
40. Extension part,
43 ... Guide part,
45. Back row bag,
59 ... connecting part,
S1, S2, S3 ... Seat,
W1, W2, W3 ... windows,
V ... Vehicle,
M: Head protection airbag device.

Claims

When the inflation is completed, the upper edge side is fixed to the body side on the upper edge side of the window inside the vehicle, and folded and stored on the upper edge side of the window, and the expansion gas from the inflator is allowed to flow into the storage position. The airbag is configured to be deployed and inflated so as to cover the inside of the window while protruding downward, and is mounted on a three-row seat type vehicle.
The airbag is configured to include a gas inflow portion that inflates by inflating the inflation gas from the inflator, and a non-inflow portion that does not allow the inflation gas to flow,
The gas inflow part is a head protection airbag device configured to include an inflating shielding part disposed so as to cover the vehicle interior side of the window when the inflation of the airbag is completed,
Each of the airbags has a front-side inflating shielding part that is provided separately so as to cover the vehicle interior side of the windows that are arranged on the sides of the first and second row seats when inflation is completed. It is composed of a front row bag, and a rear row bag having a rear side expansion shielding portion disposed so as to cover the vehicle interior side of the window disposed on the side of the third row seat when expansion is completed,
A guide that is disposed along the substantially vertical direction in the vicinity of the rear edge of the rear row bag near the rear edge when the rear row bag is located near the rear edge when the front row bag is inflated. By being connected to the part, it is configured to be connected to the front row bag,
The connecting portion is
When only the front row bag is deployed and inflated, it is slidable relative to the guide portion, connected to the guide portion so as to allow only the front row bag to be deployed and inflated, and
When both the front row bag and the rear row bag are expanded and inflated, the rear row bag is slidable to the vicinity of the lower end of the guide portion as the rear row bag is expanded downward. At the time of completion, it is possible to generate a tension from the connecting portion to the fixing portion to the body side disposed near the rear end on the upper edge side of the rear row bag.
A head protection airbag device connected to the guide portion.

2. The head according to claim 1, wherein the guide portion is formed in a belt shape substantially along the vertical direction, and is disposed at a portion of the non-inflow portion on the rear edge side of the front expansion shielding portion. Part protection airbag device.

The front row bag is disposed as the non-inflow portion so as to extend from at least a lower end side portion on the rear edge side of the front side expansion shielding portion at the time of completion of inflation to the vehicle rear side, and the rear end is arranged in the third row. An extending portion that is fixed to the upper edge side of the window to be disposed is configured,
3. The configuration according to claim 1, wherein the rear side expansion shielding portion in the rear row bag is configured to be supported by the extending portion on the vehicle outer side when the front and rear row bags are completely inflated. The head protection airbag device described in 1.