JP4813241B2 - Airbag device - Google Patents

Airbag device Download PDF

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JP4813241B2
JP4813241B2 JP2006115442A JP2006115442A JP4813241B2 JP 4813241 B2 JP4813241 B2 JP 4813241B2 JP 2006115442 A JP2006115442 A JP 2006115442A JP 2006115442 A JP2006115442 A JP 2006115442A JP 4813241 B2 JP4813241 B2 JP 4813241B2
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bag
side portion
mounting hole
bolt
airbag
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JP2007283956A (en
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健 甲斐
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Description

本発明は、車両の緊急時に膨張するバッグを有するエアバッグ装置に関する。   The present invention relates to an airbag device having a bag that is inflated in the event of a vehicle emergency.

車両の緊急時に膨張するバッグを有するエアバッグ装置として、車両のシートクッションのパッドの下方にバッグが設けられ、バッグが上方に膨張することでパッドを膨出させて乗員の腰の前方移動を規制するものがあり、このようなエアバッグ装置において、バッグの膨張形状を包囲体で制御するものがある(例えば特許文献1参照)。このエアバッグ装置は、包囲体が一定の周長でバッグを包囲するようになっている。
特開2004−359207号公報
As an airbag device that has a bag that inflates in the event of a vehicle emergency, a bag is provided below the pad of the vehicle seat cushion, and the bag expands upward to restrict the forward movement of the occupant's waist In such an airbag device, there is an airbag device that controls the inflated shape of the bag with an enclosure (see, for example, Patent Document 1). In this airbag device, the envelope body surrounds the bag with a constant circumference.
JP 2004-359207 A

上記した包囲体は、一定の周長でバッグを包囲するようになっているため、バッグの膨張形状を円柱状にしか制御することができない。   Since the above-described surrounding body surrounds the bag with a constant circumference, the inflated shape of the bag can be controlled only to a columnar shape.

したがって、本発明は、バッグの膨張形状を円柱状以外の任意の形状に設定することができるエアバッグ装置の提供を目的とする。   Therefore, an object of the present invention is to provide an airbag device that can set an inflated shape of a bag to an arbitrary shape other than a cylindrical shape.

上記目的を達成するために、請求項1に係る発明は、車両のシートクッションに設けられて車両の緊急時に膨張するバッグ(例えば実施形態におけるバッグ42)と、該バッグを包む包囲体(例えば実施形態における包囲体51)とを備えるエアバッグ装置(例えば実施形態におけるエアバッグモジュール11)であって、前記包囲体は、中間部と端部との周長が異なっており、中央部の周長が最も短く両端部側ほど徐々に周長が長くなることを特徴としている。 In order to achieve the above object, the invention according to claim 1 is a bag provided on a seat cushion of a vehicle and inflated in an emergency of the vehicle (for example, the bag 42 in the embodiment), and an enclosure (for example, implementation) for enclosing the bag. an airbag device comprising an enclosure 5 1) and in the form (the air bag module 11 in the example embodiment), said enclosure is different circumferential length of the intermediate portion and the end portion, the peripheral of the central portion length gradually circumference as shortest both ends are characterized by a long Rukoto.

請求項1に係る発明によれば、車両の緊急時に膨張するバッグを包む包囲体が、中間部と端部との周長が異なっているため、バッグの膨張形状を円柱状以外の任意の形状に設定することができる。   According to the first aspect of the invention, since the surrounding body that wraps the bag that expands in an emergency of the vehicle has different peripheral lengths between the intermediate portion and the end portion, the expansion shape of the bag can be any shape other than a cylindrical shape. Can be set to

また、バッグがシートクッションに設けられるものであるため、乗員の腰の前方移動を規制するために好ましい形状にバッグの膨張形状を制御することができ、乗員を良好に拘束することができる。 Further , since the bag is provided on the seat cushion, the inflated shape of the bag can be controlled to a preferable shape for restricting the forward movement of the occupant's waist, and the occupant can be restrained well.

また、包囲体の中間部の周長よりも端部の周長が長いため、バッグは、中間部よりも両端側が大きくなるように膨張することになり、乗員の腰の前方移動時に両腿の付け根の部分を効果的に拘束することができる。 Further , since the circumference of the end portion is longer than the circumference of the intermediate portion of the enclosure, the bag is inflated so that both end sides are larger than the intermediate portion. The root portion can be effectively restrained.

本発明の第1実施形態のエアバッグ装置を図1〜図7を参照して以下に説明する。
図1は、第1実施形態のエアバッグ装置としてのエアバッグモジュール11が取り付けられる車両用の座席12を示す分解斜視図で、この座席12は、車幅方向に離間して設けられて車両前後方向に延在する一対のシートレール13と、各シートレール13にスライド可能に設けられたスライダ14と、これらスライダ14に支持され略水平に配置されて乗員の主として腰下を支承するシートクッション15と、スライダ14の車両前後方向の後端部に回動可能に設けられ立設状態で乗員の主として背中を支承するシートバック16と、シートバック16のシートクッション15とは反対側に設けられて乗員の主として後頭部を支承するヘッドレスト17とを有している。
The airbag apparatus of 1st Embodiment of this invention is demonstrated below with reference to FIGS.
FIG. 1 is an exploded perspective view showing a vehicle seat 12 to which an airbag module 11 as an airbag device of the first embodiment is attached. The seat 12 is provided spaced apart in the vehicle width direction and is arranged in front of and behind the vehicle. A pair of seat rails 13 extending in the direction, a slider 14 provided slidably on each seat rail 13, and a seat cushion 15 supported by these sliders 14 and disposed substantially horizontally to support the occupant mainly under the waist. And a seat back 16 that is pivotally provided at the rear end of the slider 14 in the vehicle front-rear direction and mainly supports the back of the occupant in the standing state, and is provided on the opposite side of the seat cushion 15 of the seat back 16. It has a headrest 17 that mainly supports the back of the occupant.

シートクッション15は、各スライダ14の内側にそれぞれ固定されるパンブラケット20と、左右のパンブラケット20同士を結ぶように車幅方向に延在するコネクティングブラケット21と、両パンブラケット20の上側に載置されて両パンブラケット20に固定されるシートパン22と、シートパン22の上側に載置されることでシートパン22に支持されるクッションパッド(パッド)23とを有している。クッションパッド23は、乗員が着座するもので、ウレタンフォームを表皮で覆って形成されている。   The seat cushion 15 is mounted on the upper side of the pan bracket 20 fixed to the inside of each slider 14, the connecting bracket 21 extending in the vehicle width direction so as to connect the left and right pan brackets 20, and both the pan brackets 20. The seat pan 22 is placed and fixed to the both pan brackets 20, and the cushion pad (pad) 23 is supported on the seat pan 22 by being placed on the upper side of the seat pan 22. The cushion pad 23 is a seat on which an occupant sits, and is formed by covering urethane foam with a skin.

そして、図2にも示すように、シートクッション15におけるクッションパッド23を支持するシートパン22の中間所定位置に本実施形態のエアバッグモジュール11は取り付けられることになり、その結果、エアバッグモジュール11はシートクッション15のクッションパッド23の下方に配置される。なお、シートパン22の中間所定位置にはエアバッグモジュール11を取り付けるための取付開口部24が形成されている。そして、図1に示すように取付開口部24の外側にはエアバッグモジュール11の取り付け用の取付穴26が形成され、また取付開口部24にエアバッグモジュール11の取り付け用の逃げ溝27が形成されている。   As shown in FIG. 2, the airbag module 11 of the present embodiment is attached to a predetermined position in the seat pan 22 that supports the cushion pad 23 in the seat cushion 15, and as a result, the airbag module 11. Is disposed below the cushion pad 23 of the seat cushion 15. An attachment opening 24 for attaching the airbag module 11 is formed at a predetermined intermediate position of the seat pan 22. As shown in FIG. 1, a mounting hole 26 for mounting the airbag module 11 is formed outside the mounting opening 24, and a clearance groove 27 for mounting the airbag module 11 is formed in the mounting opening 24. Has been.

エアバッグモジュール11は、図3に示すように、上部に開口部30を有する有底箱状のケース31と、このケース31内に折り畳まれた状態で収納されるエアバッグ32と、ケース31の開口部30を塞ぐカバー体33とを備えている。   As shown in FIG. 3, the airbag module 11 includes a bottomed box-shaped case 31 having an opening 30 at the top, an airbag 32 stored in a folded state in the case 31, And a cover body 33 that closes the opening 30.

ケース31は、金属製とされ、略長方形状の横長の底板部35と、この底板部35の全周縁から立ち上がる角筒状の周壁部36と、周壁部36の上端部の全周縁から外側に延出して開口縁部を構成するフランジ部37を有している。ここで、フランジ部37には、カバー体33を取り付けるための取付穴38が複数形成されており、また、シートパン22への取り付け用の図示略の取付穴が複数形成されている。底板部35には、エアバッグ32を取り付けるための複数の取付穴40と、図4に示すように底板部35の一側において長さ方向に沿って直線状に配置される複数具体的には4カ所の取付穴41a〜41dと、底板部35の反対側において長さ方向に沿って直線状に配置される複数具体的には4カ所の取付穴41e〜41hとを有している。   The case 31 is made of metal and has a substantially rectangular horizontally long bottom plate portion 35, a rectangular cylindrical peripheral wall portion 36 that rises from the entire peripheral edge of the bottom plate portion 35, and an outer periphery from the entire peripheral edge of the upper end portion of the peripheral wall portion 36. It has the flange part 37 which extends and comprises an opening edge part. Here, a plurality of attachment holes 38 for attaching the cover body 33 are formed in the flange portion 37, and a plurality of attachment holes (not shown) for attachment to the seat pan 22 are formed. The bottom plate portion 35 has a plurality of mounting holes 40 for attaching the airbag 32, and a plurality of holes arranged in a straight line along the length direction on one side of the bottom plate portion 35 as shown in FIG. There are four mounting holes 41 a to 41 d and a plurality of mounting holes 41 e to 41 h arranged in a straight line along the length direction on the opposite side of the bottom plate portion 35.

エアバッグ32は、図3に示すように、布製の横長袋状のバッグ42と、取付ブラケット43に保持された状態でバッグ42内に配置されてバッグ42内にガス(流体)を導入可能な略円筒状のインフレータ44とを有している。ここで、取付ブラケット43は、これに形成された取付穴45にボルト46が溶接等で固定されており、このボルト46をバッグ42に形成された取付穴47に挿入した状態でケース31の底板部35の取付穴40に挿入してその先端にナット48を螺合させると、バッグ42がケース31に取り付けられる。   As shown in FIG. 3, the airbag 32 is arranged in the bag 42 while being held by the cloth-like bag 42 and the mounting bracket 43, and can introduce gas (fluid) into the bag 42. A substantially cylindrical inflator 44. Here, the mounting bracket 43 has a bolt 46 fixed to the mounting hole 45 formed in the mounting bracket 45 by welding or the like, and the bottom plate of the case 31 is inserted in the mounting hole 47 formed in the bag 42. When the bag is inserted into the mounting hole 40 of the portion 35 and the nut 48 is screwed onto the tip thereof, the bag 42 is mounted on the case 31.

そして、第1実施形態のエアバッグ32は、上記したバッグ42を包むように設けられる布製の包囲体51を有している。この包囲体51は、バッグ42を包む前であって平坦面に展開された状態において図5に示す形状をなしている。つまり、包囲体51は、長さ方向の一端の辺部52に対し長さ方向の他端の辺部53が同長さで平行をなしており、しかも位置を合わせている。そして、辺部52の一方の端部から辺部52と所定角度の鋭角をなして他方の辺部53側に辺部54が延出しており、辺部52の一方の端部に近い側の辺部53の一方の端部からも辺部53に対し上記と同じ所定角度の鋭角をなして辺部55が辺部52側に延出していて、これら辺部54,55の先端部同士が交わって底角部56を形成している。辺部52の他方の端部からも辺部52と上記と同じ所定角度の鋭角をなして他方の辺部53側に辺部58が延出しており、辺部53の他方の端部からも辺部53に対し上記と同じ所定角度の鋭角をなして辺部59が辺部52側に延出していて、これら辺部58,59の先端部同士が交わって底角部60を形成している。以上により、包囲体51は両端の辺部52,53の長さが、辺部54,55により形成される底角部56と辺部58,59により形成される底角部60とを結んだ中央部(中間部)の長さよりも長くなっている。   And the airbag 32 of 1st Embodiment has the cloth enclosure 51 provided so that the above-mentioned bag 42 may be wrapped. The envelope 51 has a shape shown in FIG. 5 in a state in which the envelope is unfolded on a flat surface before the bag 42 is wrapped. In other words, the surrounding body 51 is aligned with the side part 53 at the other end in the length direction in parallel with the side part 52 at the other end in the length direction, and the position is aligned. Then, a side 54 extends from one end of the side 52 to the side 52 at an acute angle with the side 52, and the side 52 close to one end of the side 52. The edge portion 55 extends toward the side portion 52 from one end portion of the side portion 53 at an acute angle of the same predetermined angle as described above with respect to the side portion 53, and the end portions of these side portions 54, 55 are connected to each other. The bottom corners 56 are formed by crossing. A side 58 extends from the other end of the side 52 toward the other side 53 at an acute angle of the same predetermined angle as the side 52, and also from the other end of the side 53. The side part 59 forms an acute angle with the same predetermined angle as described above, and the side part 59 extends toward the side part 52. The tip parts of the side parts 58 and 59 intersect to form a bottom corner part 60. Yes. As described above, the length of the side portions 52 and 53 at both ends of the enclosure 51 connects the base corner portion 56 formed by the side portions 54 and 55 and the base corner portion 60 formed by the side portions 58 and 59. It is longer than the length of the central part (intermediate part).

辺部54の辺部52側の内側位置には辺部54から所定距離離れて取付穴62aが形成されており、辺部54の底角部56側の内側位置にも辺部54から同じ所定距離離れて取付穴62bが形成されている。また、辺部55の底角部56側の内側位置にも辺部55から同じ所定距離離れて取付穴62cが形成されており、辺部55の辺部53側の内側位置にも辺部55から上記と同じ所定距離離れて取付穴62dが形成されている。さらに、辺部58の辺部52側の内側位置には辺部58から所定距離離れて取付穴62eが形成されており、辺部58の底角部60側の内側位置にも辺部58から同じ所定距離離れて取付穴62fが形成されている。また、辺部59の底角部60側の内側位置にも辺部59から同じ所定距離離れて取付穴62gが形成されており、辺部59の辺部53側の内側位置にも辺部59から上記と同じ所定距離離れて取付穴62hが形成されている。   A mounting hole 62a is formed at an inner position on the side 52 side of the side part 54 at a predetermined distance from the side part 54, and the inner side position on the bottom corner part 56 side of the side part 54 is also the same predetermined from the side part 54. A mounting hole 62b is formed at a distance. Further, an attachment hole 62c is formed at an inner position of the side portion 55 on the side of the bottom corner portion 56 at the same predetermined distance from the side portion 55, and the side portion 55 is also formed at an inner side position of the side portion 55 on the side portion 53 side. A mounting hole 62d is formed at the same predetermined distance as above. Further, a mounting hole 62e is formed at an inner position of the side portion 58 on the side portion 52 side at a predetermined distance from the side portion 58, and the inner side position of the side portion 58 on the bottom corner 60 side is also from the side portion 58. A mounting hole 62f is formed at the same predetermined distance. Further, a mounting hole 62g is formed at an inner position on the bottom corner 60 side of the side portion 59 at the same predetermined distance from the side portion 59, and the side portion 59 is also formed at an inner position of the side portion 59 on the side 53 side. A mounting hole 62h is formed at the same predetermined distance as above.

そして、図4に示すように、底板部35の一側において直線状に配列された取付穴41a〜41dに対し、取付穴41aおよび取付穴62aにボルト63aを挿通させてこのボルト63aにナット64aを螺合させ、取付穴41bおよび取付穴62bにボルト63bを挿通させてこのボルト63bにナット64bを螺合させ、取付穴41cおよび取付穴62cにボルト63cを挿通させてこのボルト63cにナット64cを螺合させ、取付穴41dおよび取付穴62dにボルト63dを挿通させてこのボルト63dにナット64dを螺合させることで、包囲体51は一方の辺部54,55側が底板部35に直線状に取り付けられることになる。   As shown in FIG. 4, bolts 63a are inserted into the mounting holes 41a and 62a with respect to the mounting holes 41a to 41d arranged linearly on one side of the bottom plate portion 35, and nuts 64a are inserted into the bolts 63a. Are screwed, the bolt 63b is inserted into the mounting hole 41b and the mounting hole 62b, the nut 64b is screwed into the bolt 63b, the bolt 63c is inserted into the mounting hole 41c and the mounting hole 62c, and the nut 64c is inserted into the bolt 63c. , The bolt 63d is inserted into the mounting hole 41d and the mounting hole 62d, and the nut 64d is screwed into the bolt 63d, so that the side body 54, 55 side of the enclosure 51 is linear with the bottom plate part 35. Will be attached to.

また、底板部35の他側において直線状に配列された取付穴41e〜41hに対し、取付穴41eおよび取付穴62eにボルト63eを挿通させてこのボルト63eにナット64eを螺合させ、取付穴41fおよび取付穴62fにボルト63fを挿通させてこのボルト63fにナット64fを螺合させ、取付穴41gおよび取付穴62gにボルト63gを挿通させてこのボルト63gにナット64gを螺合させ、取付穴41hおよび取付穴62hにボルト63hを挿通させてこのボルト63hにナット64hを螺合させることで、包囲体51は他方の辺部58,59側が底板部35に直線状に取り付けられることになる。ここで、このように包囲体51を底板部35に取り付けた状態でバッグ42は、包囲体51の両端側から略等長さ突出する状態となる。   Further, bolts 63e are inserted into the mounting holes 41e and 62e with respect to the mounting holes 41e to 41h arranged in a straight line on the other side of the bottom plate portion 35, and nuts 64e are screwed into the bolts 63e. The bolt 63f is inserted into the 41f and the mounting hole 62f, and the nut 64f is screwed into the bolt 63f. The bolt 63g is inserted into the mounting hole 41g and the mounting hole 62g, and the nut 64g is screwed into the bolt 63g. By inserting the bolt 63h into the 41h and the mounting hole 62h and screwing the nut 64h into the bolt 63h, the other side portions 58 and 59 of the enclosure 51 are attached to the bottom plate portion 35 in a straight line. Here, with the enclosure 51 attached to the bottom plate portion 35 in this way, the bag 42 protrudes from the both end sides of the enclosure 51 by substantially the same length.

図3に示すように、カバー体33は、合成樹脂製であり、中間のカバー部70でケース31の開口部30を塞いだ状態でこのカバー部70よりも外側つまり開口部30よりも外側にある全周縁部71がフランジ部37の上に全周にわたって載置される。   As shown in FIG. 3, the cover body 33 is made of synthetic resin, and is outside the cover portion 70, that is, outside the opening portion 30 with the intermediate cover portion 70 closing the opening 30 of the case 31. A certain peripheral edge portion 71 is placed on the flange portion 37 over the entire periphery.

カバー体33には、ケース31のフランジ部37の取付穴38と位置を合わせて取付穴72が形成されており、フランジ部37のシートパン22への取り付け用の図示略の取付穴と位置を合わせて図1に示す取付穴73が形成されている。また、カバー体33には、中央付近のケース31側の内面にエアバッグ32の膨張時に破断を促進する複数の薄肉のティアライン74,75が複数平行に形成されている。さらに、カバー体33には、フランジ部37との境界付近にティアライン74,75と平行に、屈曲を容易とするための薄肉の一対の屈曲ライン76が内面に、同様の屈曲ライン77が外面に形成されている。なお、外側への屈曲を容易とするために、外面の屈曲ライン77はこれに近接する内面の屈曲ライン76よりも若干外側に形成されている。   An attachment hole 72 is formed in the cover body 33 in alignment with the attachment hole 38 of the flange portion 37 of the case 31, and the attachment hole (not shown) for attaching the flange portion 37 to the seat pan 22 is positioned. In addition, a mounting hole 73 shown in FIG. 1 is formed. The cover 33 is formed with a plurality of thin tear lines 74 and 75 in parallel on the inner surface on the case 31 side near the center so as to promote breakage when the airbag 32 is inflated. Further, in the cover body 33, a pair of thin bent lines 76 for facilitating bending are provided on the inner surface in the vicinity of the boundary with the flange portion 37, and a similar bent line 77 is provided on the outer surface. Is formed. In order to facilitate outward bending, the outer bent line 77 is formed slightly outside the inner bent line 76 adjacent thereto.

カバー体33は、複数の取付穴72と、ケース31のフランジ部37に形成された複数の取付穴38とにそれぞれ挿通されるボルト80およびナット81によってケース31に固定される。つまり、ボルト80をカバー体33の取付穴72およびケース31の取付穴38に挿入し、ナット81に螺合させることで、カバー体33がケース31に固定される。   The cover body 33 is fixed to the case 31 by bolts 80 and nuts 81 that are respectively inserted into the plurality of mounting holes 72 and the plurality of mounting holes 38 formed in the flange portion 37 of the case 31. That is, the cover body 33 is fixed to the case 31 by inserting the bolts 80 into the mounting holes 72 of the cover body 33 and the mounting holes 38 of the case 31 and screwing them into the nuts 81.

上記のようにして、インフレータ44、取付ブラケット43、バッグ42および包囲体51からなるエアバッグ32を収納したケース31にカバー体33を取り付けることでエアバッグモジュール11が構成されることになり、このエアバッグモジュール11がそのケース31の周壁部36においてシートパン22の取付開口部24に上側から挿入され、ケース31のフランジ部37においてシートパン22の取付開口部24の周縁部に載置される。このとき、ボルト80およびナット81は逃げ溝27に入り込む。この状態で、カバー体33の残りの複数の取付穴73と、ケース31の残りの複数の図示略の取付穴と、取付開口部24の外側の取付穴26とにそれぞれ挿通されるボルト85およびナット86によってエアバッグモジュール11がシートパン22に固定される。つまり、ボルト85をカバー体33の取付穴73、ケース31の図示略の取付穴およびシートパン22の取付穴26に挿入し、ナット86に螺合させることで、エアバッグモジュール11がシートパン22に固定される。   As described above, the airbag module 11 is configured by attaching the cover body 33 to the case 31 that houses the airbag 32 including the inflator 44, the mounting bracket 43, the bag 42, and the enclosure 51. The airbag module 11 is inserted from above into the mounting opening 24 of the seat pan 22 in the peripheral wall portion 36 of the case 31, and placed on the peripheral portion of the mounting opening 24 of the seat pan 22 in the flange portion 37 of the case 31. . At this time, the bolt 80 and the nut 81 enter the escape groove 27. In this state, a plurality of remaining mounting holes 73 of the cover body 33, a plurality of remaining mounting holes (not shown) of the case 31, and bolts 85 inserted through the mounting holes 26 outside the mounting opening 24, respectively. The airbag module 11 is fixed to the seat pan 22 by the nut 86. That is, the bolt 85 is inserted into the mounting hole 73 of the cover body 33, the mounting hole (not shown) of the case 31 and the mounting hole 26 of the seat pan 22, and screwed into the nut 86, so that the airbag module 11 is seated in the seat pan 22. Fixed to.

このようにしてエアバッグモジュール11が取り付けられたシートパン22を上側から覆うように図2に示すクッションパッド23が取り付けられることになるが、クッションパット23の下面には、周囲側の周囲部90でシートパン22のエアバッグモジュール11よりも外側の周囲部91に当接した状態で、エアバッグモジュール11のシートパン22からの突出部分つまりカバー体33を収容するための収容凹部92が形成されている。   The cushion pad 23 shown in FIG. 2 is attached so as to cover the seat pan 22 to which the airbag module 11 is attached from the upper side in this way, but the lower side of the cushion pad 23 has a peripheral portion 90 on the peripheral side. Thus, a projecting portion from the seat pan 22 of the airbag module 11, that is, a housing recess 92 for housing the cover body 33 is formed in contact with the peripheral portion 91 outside the airbag module 11 of the seat pan 22. ing.

以上の第1実施形態のエアバッグモジュール11においては、車両衝突時に例えば所定以上の重力加速度が検出される等の展開条件が整うとインフレータ44が点火し、折り畳まれた状態にあったバッグ42がインフレータ44が発生するガスで、カバー体33をティアライン74,75から破き両側それぞれの屈曲ライン76,77で屈曲させることで外側に押し開きながら上方に膨張し、図2に二点鎖線で示すようにクッションパッド23を上方に押圧する。すると、クッションパッド23の中間位置が上側に膨出し膨出部23aを形成することになって、座席12に着座しシートベルトを装着した状態にある乗員の腰下を前側から抑えて腰の前方移動を規制することになる。ここで、包囲体51は、図5に示すように両端部の辺部52,53が中央部の底角部56,60を結んだ距離よりも長い形状をなしているため、中央部と両端部との周長が異なることになり、具体的には、中央部の周長よりも両端部の周長が長くなる。よって、図6に示すように、バッグ42は、この包囲体51で膨張形状が規制されることになり、中央部よりも両端部側が大きく膨張することになる。   In the airbag module 11 according to the first embodiment described above, the inflator 44 is ignited when the deployment condition such as a gravitational acceleration of a predetermined level or more is detected at the time of a vehicle collision, and the bag 42 that has been folded is provided. The gas generated by the inflator 44 breaks the cover body 33 from the tear lines 74 and 75 and bends them at the bending lines 76 and 77 on both sides, so that the cover body 33 expands upward while being pushed outwards. As shown, the cushion pad 23 is pressed upward. Then, the intermediate position of the cushion pad 23 bulges upward to form the bulging portion 23a, and the lower back of the occupant who is seated on the seat 12 and wearing the seat belt is restrained from the front, and the front of the waist The movement will be restricted. Here, as shown in FIG. 5, the surrounding body 51 has a shape longer than the distance at which the side portions 52 and 53 of both end portions connect the bottom corner portions 56 and 60 of the central portion, and therefore, That is, the circumference of the both ends is different from the circumference of the center portion. Therefore, as shown in FIG. 6, the expansion shape of the bag 42 is restricted by the enclosure 51, and both end portions are inflated more greatly than the center portion.

以上に述べた第1実施形態によれば、車両の緊急時に膨張するバッグ42を包む包囲体51が、中央部と両端部との周長が異なっているため、バッグ42の膨張形状を円柱状以外の任意の形状に設定することができる。具体的に、包囲体51の中央部の底角部56,60を結ぶ位置の周長よりも両端部の辺部52,53の位置の周長が長いため、バッグ42は、図6に示すように、中央部よりも両端部側が大きくなるように略鼓状に膨張することになり、乗員の腰の前方移動時に両腿の付け根の部分を効果的に拘束することができる。このように、乗員の腰の前方移動を規制するために好ましい形状にバッグ42の膨張形状を包囲体51で制御することができ、乗員を良好に拘束することができる。   According to the first embodiment described above, since the surrounding body 51 that wraps the bag 42 that is inflated in an emergency of the vehicle has different peripheral lengths at the center and both ends, the expansion shape of the bag 42 is cylindrical. It can be set to any shape other than. Specifically, since the circumference of the positions of the side portions 52 and 53 at both ends is longer than the circumference of the position connecting the bottom corners 56 and 60 at the center of the enclosure 51, the bag 42 is shown in FIG. Thus, it will expand | swell in a substantially drum shape so that both ends may become larger than a center part, and the base part of both thighs can be effectively restrained at the time of a passenger | crew's waist movement front. Thus, the inflated shape of the bag 42 can be controlled by the enclosure 51 to a preferable shape for restricting the forward movement of the occupant's waist, and the occupant can be restrained well.

なお、以上に述べた第1実施形態においては、図5に示すように、一方の辺部52の一方の端部から底角部56に向けて一本の直線状の辺部54を延出させ、他方の辺部53の一方の端部から底角部56に向けて一本の直線状の辺部55を延出させ、一方の辺部52の他方の端部から底角部60に向けて一本の直線状の辺部58を延出させ、他方の辺部53の他方の端部から底角部60に向けて一本の直線状の辺部59を延出させる場合を例にとり説明したが、図7に示すように、一方の辺部52の一方の端部から底角部56に向けて、辺部52に対する角度を段階的に大きくする複数本具体的には二本の直線状の辺部54A,54Bを延出させ、他方の辺部53の一方の端部から底角部56に向けて、辺部53に対する角度を段階的に大きくする複数本具体的には二本の直線状の辺部55A,55Bを延出させ、一方の辺部52の他方の端部から底角部60に向けて、辺部52に対する角度を段階的に大きくする複数本具体的には二本の直線状の辺部58A,58Bを延出させ、他方の辺部53の他方の端部から底角部60に向けて、辺部53に対する角度を段階的に大きくする複数本具体的には二本の直線状の辺部59A,59Bを延出させるようにしても良い。この場合、各辺部54A,54B,55A,55B,58A,58B,59A,59Bの両側に取付穴62を形成し、ケース51の底板部35にもこれに合わせて取付穴を形成する。このように構成すれば、バッグ42が端部側から中央部にかけて複数段階でテーパ状に縮径するような膨張形状になる。   In the first embodiment described above, as shown in FIG. 5, one straight side portion 54 extends from one end portion of one side portion 52 toward the bottom corner portion 56. One straight side 55 is extended from one end of the other side 53 toward the bottom corner 56, and from the other end of one side 52 to the bottom corner 60. An example in which one straight side portion 58 extends toward the bottom corner portion 60 from the other end portion of the other side portion 53 to the bottom corner portion 60. As shown in FIG. 7, as shown in FIG. The straight side portions 54A and 54B are extended, and the angle with respect to the side portion 53 is increased stepwise from one end portion of the other side portion 53 toward the base corner portion 56. More specifically, two linear side portions 55A and 55B are extended, and the angle with respect to the side portion 52 is stepped from the other end portion of the one side portion 52 toward the bottom corner portion 60. More specifically, two linear side portions 58A and 58B are extended, and the angle with respect to the side portion 53 is increased from the other end portion of the other side portion 53 toward the bottom corner portion 60. A plurality of, specifically, two linear side portions 59A and 59B which are increased stepwise may be extended. In this case, mounting holes 62 are formed on both sides of each of the side portions 54A, 54B, 55A, 55B, 58A, 58B, 59A, 59B, and mounting holes are formed in the bottom plate portion 35 of the case 51 accordingly. If comprised in this way, it will become an expansion | swelling shape that the bag 42 is diameter-reduced in a taper shape in several steps from the edge part side to the center part.

次に、参考技術のエアバッグ装置を主に図8〜図11を参照して第1実施形態との相違部分を中心に以下に説明する。なお、第1実施形態と同様の部分には同一の符号を付しその説明は略す。 Next, the airbag device of the reference technique will be described below mainly with respect to the difference from the first embodiment with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part similar to 1st Embodiment, and the description is abbreviate | omitted.

参考技術は第1実施形態に対し布製の包囲体が相違している。つまり、参考技術の包囲体101は、バッグ42を包む前であって平坦面に展開された状態において図8に示す形状をなしている。包囲体101は、長さ方向の一端の辺部102に対し長さ方向の他端の辺部103が同長さで平行をなしており、しかも位置を合わせている。そして、辺部102の一方の端部から辺部102と所定角度の鈍角をなして他方の辺部103側に辺部104が延出しており、辺部102のこの一方の端部に近い側の辺部103の一方の端部からも辺部103に対し上記と同じ所定角度の鈍角をなして辺部105が辺部102側に延出していて、これら辺部104,105の先端部同士が交わって頂角部106を形成している。辺部102の他方の端部からも辺部102と上記と同じ所定角度の鈍角をなして他方の辺部103側に辺部108が延出しており、辺部103の他方の端部からも辺部103に対し上記と同じ所定角度の鈍角をなして辺部109が辺部102側に延出していて、これら辺部108,109の先端部同士が交わって頂角部110を形成している。以上により、包囲体101は両端の辺部102,103の長さが、辺部104,105により形成される頂角部106と辺部108,109により形成される頂角部110とを結んだ中央部(中間部)の長さよりも短くなっている。 The reference technique is different from the first embodiment in the cloth enclosure. That is, the envelope body 101 of the reference technique has a shape shown in FIG. 8 in a state where the envelope body is unfolded on a flat surface before the bag 42 is wrapped. The surrounding body 101 has a side portion 103 at the other end in the length direction parallel to the side portion 102 at the other end in the length direction, and the position is aligned. A side portion 104 extends from one end portion of the side portion 102 to the side portion 102 at an obtuse angle with the side portion 102 and extends to the other side portion 103 side. The obtuse angle of the same predetermined angle as described above is formed with respect to the side part 103 from one end part of the side part 103, and the side part 105 extends to the side part 102 side. Intersect to form the apex portion 106. A side portion 108 extends from the other end portion of the side portion 102 toward the other side portion 103 at an obtuse angle of the same predetermined angle as that of the side portion 102, and also from the other end portion of the side portion 103. The side portion 109 has an obtuse angle of the same predetermined angle as described above with respect to the side portion 103, and the side portion 109 extends toward the side portion 102. The tip portions of the side portions 108 and 109 intersect to form the apex angle portion 110. Yes. As described above, the length of the side portions 102 and 103 at both ends of the enclosure 101 connects the apex angle portion 106 formed by the side portions 104 and 105 and the apex angle portion 110 formed by the side portions 108 and 109. It is shorter than the length of the central part (intermediate part).

辺部104の辺部102側の内側位置には辺部104から所定距離離れて取付穴112aが形成されており、辺部104の頂角部106側の内側位置にも辺部104から同じ所定距離離れて取付穴112bが形成されている。また、辺部105の頂角部106側の内側位置にも辺部105から同じ所定距離離れて取付穴112cが形成されており、辺部105の辺部103側の内側位置にも辺部105から上記と同じ所定距離離れて取付穴112dが形成されている。さらに、辺部108の辺部102側の内側位置には辺部108から所定距離離れて取付穴112eが形成されており、辺部108の頂角部110側の内側位置にも辺部108から同じ所定距離離れて取付穴112fが形成されている。また、辺部109の頂角部110側の内側位置にも辺部109から同じ所定距離離れて取付穴112gが形成されており、辺部109の辺部103側の内側位置にも辺部109から上記と同じ所定距離離れて取付穴112hが形成されている。   A mounting hole 112 a is formed at a predetermined distance from the side portion 104 at an inner position on the side portion 102 side of the side portion 104, and the same predetermined position from the side portion 104 also at an inner position on the apex angle portion 106 side of the side portion 104. A mounting hole 112b is formed at a distance. Further, an attachment hole 112c is formed at an inner position on the apex corner portion 106 side of the side portion 105 at the same predetermined distance from the side portion 105, and the side portion 105 is also formed on the inner side position of the side portion 105 on the side portion 103 side. A mounting hole 112d is formed at the same predetermined distance as above. Further, a mounting hole 112e is formed at a predetermined distance from the side portion 108 at an inner position on the side portion 102 side of the side portion 108, and from the side portion 108 to an inner position on the apex angle portion 110 side of the side portion 108. Mounting holes 112f are formed at the same predetermined distance. In addition, a mounting hole 112g is formed at an inner position of the side portion 109 on the apex corner portion 110 side at the same predetermined distance from the side portion 109, and the side portion 109 also has an inner position on the side portion 103 side. A mounting hole 112h is formed at the same predetermined distance as above.

そして、図9に示すように、底板部35の一側において直線状に配列された取付穴41a〜41dに対し、取付穴41aおよび取付穴112aにボルト63aを挿通させてこのボルト63aにナット64aを螺合させ、取付穴41bおよび取付穴112bにボルト63bを挿通させてこのボルト63bにナット64bを螺合させ、取付穴41cおよび取付穴112cにボルト63cを挿通させてこのボルト63cにナット64cを螺合させ、取付穴41dおよび取付穴112dにボルト63dを挿通させてこのボルト63dにナット64dを螺合させることで、包囲体101は一方の辺部104,105側が底板部35に直線状に取り付けられることになる。   As shown in FIG. 9, bolts 63a are inserted into the mounting holes 41a and 112a with respect to the mounting holes 41a to 41d arranged linearly on one side of the bottom plate portion 35, and nuts 64a are inserted into the bolts 63a. Are screwed, the bolt 63b is inserted into the mounting hole 41b and the mounting hole 112b, the nut 64b is screwed into the bolt 63b, the bolt 63c is inserted into the mounting hole 41c and the mounting hole 112c, and the nut 64c is inserted into the bolt 63c. , The bolt 63d is inserted into the mounting hole 41d and the mounting hole 112d, and the nut 64d is screwed into the bolt 63d, so that the one side portion 104, 105 side of the enclosure 101 is linear with the bottom plate portion 35. Will be attached to.

また、底板部35の他側において直線状に配列された取付穴41e〜41hに対し、取付穴41eおよび取付穴112eにボルト63eを挿通させてこのボルト63eにナット64eを螺合させ、取付穴41fおよび取付穴112fにボルト63fを挿通させてこのボルト63fにナット64fを螺合させ、取付穴41gおよび取付穴112gにボルト63gを挿通させてこのボルト63gにナット64gを螺合させ、取付穴41hおよび取付穴112hにボルト63hを挿通させてこのボルト63hにナット64hを螺合させることで、包囲体101は他方の辺部108,109側が底板部35に直線状に取り付けられることになる。   Further, bolts 63e are inserted into the mounting holes 41e and 112e with respect to the mounting holes 41e to 41h arranged in a straight line on the other side of the bottom plate portion 35, and nuts 64e are screwed into the bolts 63e. 41f and the mounting hole 112f are inserted into the bolt 63f, and the nut 64f is screwed into the bolt 63f. The bolt 63g is inserted into the mounting hole 41g and the mounting hole 112g, and the nut 64g is screwed into the bolt 63g. By inserting a bolt 63h into 41h and the mounting hole 112h and screwing a nut 64h into this bolt 63h, the other side portions 108 and 109 of the enclosure 101 are attached to the bottom plate portion 35 in a straight line.

以上の参考技術のエアバッグモジュール11においても、第1実施形態と同様、車両衝突時に例えば所定以上の重力加速度が検出される等の展開条件が整うとインフレータ44が点火し、カバー体33を破断させ外側に押し開きながら膨張し、クッションパッド23を上方に押圧することになるが、参考技術の包囲体101は、上記のように両端部の辺部102,103側が頂角部106,110を結ぶ中央部よりも短い形状をなしているため、中央部と両端部との周長が異なることになり、具体的には、中央部の周長よりも両端部の周長が短くなり、その結果、バッグ42は、両端部側よりも中央部が大きく膨張することになる。 In the airbag module 11 of the above-described reference technology , as in the first embodiment, the inflator 44 is ignited and the cover body 33 is broken when a deployment condition such as a gravitational acceleration exceeding a predetermined level is detected at the time of a vehicle collision. In this case, the envelope body 101 of the reference technique has the apex corner portions 106 and 110 on the sides 102 and 103 side of both ends as described above. Since the shape is shorter than the central part to be connected, the peripheral lengths of the central part and both end parts will be different, specifically, the peripheral length of both end parts will be shorter than the peripheral length of the central part, As a result, the bag 42 is inflated more greatly at the center than at both ends.

なお、以上に述べた参考技術においては、図8に示すように、一方の辺部102の一方の端部から頂角部106に向けて一本の直線状の辺部104を延出させ、他方の辺部103の一方の端部から頂角部106に向けて一本の直線状の辺部105を延出させ、一方の辺部102の他方の端部から頂角部110に向けて一本の直線状の辺部108を延出させ、他方の辺部103の他方の端部から底角部110に向けて一本の直線状の辺部109を延出させる場合を例にとり説明したが、図11に示すように、一方の辺部102の一方の端部から頂角部106に向けて、辺部102に対する角度を段階的に小さくする複数本具体的には二本の直線状の辺部104A,104Bを延出させ、他方の辺部103の一方の端部から頂角部106に向けて、辺部103に対する角度を段階的に小さくする複数本具体的には二本の直線状の辺部105A,105Bを延出させ、一方の辺部102の他方の端部から頂角部110に向けて、辺部102に対する角度を段階的に小さくする複数本具体的には二本の直線状の辺部108A,108Bを延出させ、他方の辺部103の他方の端部から頂角部110に向けて、辺部103に対する角度を段階的に小さくする複数本具体的には二本の直線状の辺部109A,109Bを延出させるようにしても良い。この場合も、各辺部104A,104B,105A,105B,108A,108B,109A,109Bのそれぞれの両側に取付穴112を形成し、ケース51の底板部35にもこれに合わせて取付穴を形成する。このように構成すれば、バッグ42が端部側から中央部にかけて複数段階でテーパ状に拡径するような膨張形状になる。 In the reference technique described above, as shown in FIG. 8, one straight side portion 104 is extended from one end portion of one side portion 102 toward the apex portion 106, One linear side portion 105 is extended from one end portion of the other side portion 103 toward the apex angle portion 106, and from the other end portion of the one side portion 102 toward the apex angle portion 110. A case where one straight side portion 108 is extended and one straight side portion 109 is extended from the other end portion of the other side portion 103 toward the bottom corner portion 110 will be described as an example. However, as shown in FIG. 11, a plurality of lines, specifically two straight lines, that gradually decrease the angle with respect to the side part 102 from one end part of one side part 102 toward the apex corner part 106. The side portions 104 </ b> A and 104 </ b> B are extended and from one end portion of the other side portion 103 toward the apex angle portion 106. A plurality of, specifically, two linear side portions 105A and 105B that reduce the angle with respect to the side portion 103 stepwise are extended, and the other end portion of one side portion 102 is directed to the apex corner portion 110. Thus, a plurality of, specifically, two linear side portions 108A and 108B that gradually reduce the angle with respect to the side portion 102 are extended, and the apex angle portion 110 is extended from the other end of the other side portion 103. In this case, a plurality of, specifically, two linear side portions 109A and 109B that gradually decrease the angle with respect to the side portion 103 may be extended. Also in this case, mounting holes 112 are formed on both sides of each of the side portions 104A, 104B, 105A, 105B, 108A, 108B, 109A, and 109B, and mounting holes are also formed in the bottom plate portion 35 of the case 51 accordingly. To do. If comprised in this way, it will become an expansion | swelling shape that the bag 42 expands in taper shape in several steps from the edge part side to the center part.

ここで、第1実施形態および参考技術において、バッグ42は、基布の周縁部を縫合することで袋状に形成されるものであるが、具体的には、図12に概略的に示すように、表裏複数枚ずつ、つまり表側複数枚(具体的には二枚)の基布120A,120Bおよび裏側複数枚(具体的には二枚)の基布121A,121Bの周縁部を縫合することで袋状に形成される。このとき、表側を構成する外側の基布120Aと内側の基布120Bとは、それぞれ織り方向が異なる状態で縫合され、裏側を構成する外側の基布121Aと内側の基布121Bとについても、それぞれ織り方向が異なる状態で縫合される。例えば、外側の基布120Aと内側の基布120Bとは織り方向が45度ずれており、外側の基布121Aと内側の基布121Bとについても織り方向が45度ずれている。つまり、バッグ42は、様々な箇所に適用され、場合によっては、その形状安定性等の点から現状の基布以上の強度(耐力)が望まれることがある。その際に、新規に基布を開発するのではなく、現状の基布を重ねて使用することで、安価で容易に性能を満足することができる。但し、重ねる際に全ての基布の織り方向が一致していると膨張した際に周縁部の縫合箇所に応力が集中しやすいため、重なり合う基布同士の織り方向をずらすことが有効である。勿論、外側の基布と内側の基布との織り方向のずれ角の45度は一例であり、これに限らず、例えばさらに半分の22.5度等、任意の角度に設定可能である。 Here, in the first embodiment and the reference technique , the bag 42 is formed in a bag shape by stitching the peripheral edge of the base fabric. Specifically, as shown schematically in FIG. In addition, a plurality of front and back sheets, that is, a plurality of front-side (specifically two) base fabrics 120A and 120B and a plurality of back-side multiple (specifically two) base fabrics 121A and 121B are sewn together. It is formed in a bag shape. At this time, the outer base fabric 120A and the inner base fabric 120B constituting the front side are sewn in a state where the weaving directions are different from each other, and the outer base fabric 121A and the inner base fabric 121B constituting the back side are also sewn. The stitches are sewn in different states. For example, the outer base cloth 120A and the inner base cloth 120B are deviated by 45 degrees, and the outer base cloth 121A and the inner base cloth 121B are also deviated by 45 degrees. That is, the bag 42 is applied to various places, and in some cases, strength (proof strength) higher than that of the current base fabric may be desired in view of shape stability and the like. At that time, rather than developing a new base fabric, the performance can be satisfied easily at low cost by using the current base fabric in layers. However, when the weaving directions of all the base fabrics coincide with each other when the layers are overlapped, it is effective to shift the weaving directions of the overlapping base fabrics because stress tends to concentrate on the stitched portion at the peripheral edge when the base fabrics expand. Of course, the 45 ° deviation angle in the weaving direction between the outer base fabric and the inner base fabric is an example, and is not limited to this, and can be set to an arbitrary angle such as 22.5 °, which is a half.

そして、表側の複数枚の基布120A,120Bおよび裏側の複数枚の基布121A,121Bの周縁部を縫合する場合に、図13(A)に示すように、すべての基布120A,120B,121A,121Bを重ねてこれらの周縁部をまとめて縫合すれば(図13において縫合箇所を二点鎖線で示す)、安価で迅速にバッグ42を形成できる。あるいは、図13(B)に示すように内側2枚の基布120B,121Bをこれらの周縁部で縫合し、外側2枚の基布120A,121Aをこれらの周縁部で縫合すれば、内外を別々に縫合することになるため、それぞれ異なる形状で形成できる。勿論、バッグ42は5枚以上の基布で構成しても良く、その場合、表裏の枚数が異なっていても良い。さらに形状も任意に変更が可能である。また、このような表裏複数枚ずつの基布からなるバッグは、他のあらゆる箇所への適用が可能であり、個数等も任意に設定可能である。加えて、基布の周縁部の接合は、縫合の他、接着や織り合わせ等によって行っても良い。   When sewing the peripheral portions of the plurality of base fabrics 120A and 120B on the front side and the plurality of base fabrics 121A and 121B on the back side, as shown in FIG. 13A, all the base fabrics 120A, 120B, If these peripheral parts are stitched together by overlapping 121A and 121B (the stitched portion is indicated by a two-dot chain line in FIG. 13), the bag 42 can be formed quickly and inexpensively. Alternatively, as shown in FIG. 13B, the inner two base fabrics 120B and 121B are sewn at their peripheral portions, and the outer two base fabrics 120A and 121A are sewn at these peripheral portions. Since they are sewn separately, they can be formed in different shapes. Of course, the bag 42 may be composed of five or more base fabrics, in which case the number of front and back sides may be different. Further, the shape can be arbitrarily changed. Further, such a bag made of a plurality of front and back base fabrics can be applied to any other location, and the number and the like can be arbitrarily set. In addition, the peripheral edge of the base fabric may be joined by bonding, weaving, or the like in addition to stitching.

本発明の第1実施形態のエアバッグ装置が適用された座席を示す分解斜視図である。It is a disassembled perspective view which shows the seat to which the airbag apparatus of 1st Embodiment of this invention was applied. 本発明の第1実施形態のエアバッグ装置が適用されたシートクッションを示す側断面図である。1 is a side sectional view showing a seat cushion to which an airbag device according to a first embodiment of the present invention is applied. 本発明の第1実施形態のエアバッグ装置の側断面図である。It is a sectional side view of the airbag apparatus of 1st Embodiment of this invention. 本発明の第1実施形態のエアバッグ装置のバッグの展開前を示す分解斜視図である。It is a disassembled perspective view which shows before the expansion | deployment of the bag of the airbag apparatus of 1st Embodiment of this invention. 本発明の第1実施形態のエアバッグ装置の包囲体の平面図である。It is a top view of the enclosure of the airbag apparatus of 1st Embodiment of this invention. 本発明の第1実施形態のエアバッグ装置のバッグの展開時を示す斜視図である。It is a perspective view which shows the time of the expansion | deployment of the bag of the airbag apparatus of 1st Embodiment of this invention. 本発明の第1実施形態のエアバッグ装置の包囲体の変形例を示す平面図である。It is a top view which shows the modification of the enclosure of the airbag apparatus of 1st Embodiment of this invention. 参考技術のエアバッグ装置の包囲体の平面図である。It is a top view of the enclosure of the airbag apparatus of a reference technique . 参考技術のエアバッグ装置のバッグの展開前を示す分解斜視図である。It is a disassembled perspective view which shows before the expansion | deployment of the bag of the airbag apparatus of reference technology . 参考技術のエアバッグ装置のバッグの展開時を示す斜視図である。It is a perspective view which shows the time of the expansion | deployment of the bag of the airbag apparatus of reference technology . 参考技術のエアバッグ装置の包囲体の変形例を示す平面図である。It is a top view which shows the modification of the enclosure of the airbag apparatus of reference technology . 本発明の第1実施形態および参考技術のエアバッグ装置のバッグの構成を概略的に示す分解図である。The bag structure of the first airbag apparatus of the implementation form and reference technology of the present invention is an exploded view schematically showing. 本発明の第1実施形態および参考技術のエアバッグ装置のバッグを示す断面図である。The bag of the first airbag apparatus of the implementation form and reference technology of the present invention is a cross-sectional view illustrating.

符号の説明Explanation of symbols

11 エアバッグモジュール(エアバッグ装置)
15 シートクッション
23 クッションパッド(パッド)
42 バッグ
51,101 包囲体
11 Airbag module (airbag device)
15 Seat cushion 23 Cushion pad (pad)
42 Bag 51, 101 Enclosure

Claims (1)

車両のシートクッションに設けられて車両の緊急時に膨張するバッグと、
該バッグを包む包囲体とを備えるエアバッグ装置であって、
前記包囲体は、中間部と端部との周長が異なっており、中央部の周長が最も短く両端部側ほど徐々に周長が長くなることを特徴とするエアバッグ装置。
A bag provided in a vehicle seat cushion and inflated in an emergency of the vehicle;
An airbag device comprising an envelope surrounding the bag,
It said enclosure includes an intermediate portion and the peripheral length is different between the end portion, the airbag device gradually circumference as shortest both ends in the circumferential length of the central portion is characterized by a long Rukoto.
JP2006115442A 2006-04-19 2006-04-19 Airbag device Expired - Fee Related JP4813241B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006115442A JP4813241B2 (en) 2006-04-19 2006-04-19 Airbag device
US11/787,738 US7648161B2 (en) 2006-04-19 2007-04-17 Airbag device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006115442A JP4813241B2 (en) 2006-04-19 2006-04-19 Airbag device

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JP2007283956A JP2007283956A (en) 2007-11-01
JP4813241B2 true JP4813241B2 (en) 2011-11-09

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Publication number Priority date Publication date Assignee Title
KR101104204B1 (en) * 2009-06-30 2012-01-10 현대자동차주식회사 Roof air bag device for vehicles
JP2012016970A (en) 2010-07-06 2012-01-26 Toyota Motor Corp Vehicular seat built in with cushion airbag device
WO2013094027A1 (en) 2011-12-20 2013-06-27 トヨタ自動車株式会社 Vehicle seat

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JP2001247010A (en) * 1999-12-28 2001-09-11 Takata Corp Occupant protective device
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