JP5016431B2 - Airbag - Google Patents

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JP5016431B2
JP5016431B2 JP2007254448A JP2007254448A JP5016431B2 JP 5016431 B2 JP5016431 B2 JP 5016431B2 JP 2007254448 A JP2007254448 A JP 2007254448A JP 2007254448 A JP2007254448 A JP 2007254448A JP 5016431 B2 JP5016431 B2 JP 5016431B2
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stitching
woven fabric
pair
fabric panels
seal portion
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JP2009083607A (en
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康悟 長澤
敏充 笹倉
朋央 佐藤
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Nihon Plast Co Ltd
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Nihon Plast Co Ltd
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Description

本発明は、エアバッグに関する。   The present invention relates to an airbag.

従来、自動車に搭載されるエアバッグとして、車室内側面に配置され、展開状態で前席側方と後席側方とを覆うカーテンエアバッグがある。   2. Description of the Related Art Conventionally, as an airbag mounted on an automobile, there is a curtain airbag that is disposed on a side surface of a vehicle interior and covers a front seat side and a rear seat side in a deployed state.

カーテンエアバッグは、一対の織布パネルを重ね合わせて、それら両織布パネル間に形成される膨張部の周縁部を縫合することにより形成するようになっている(例えば、特許文献1参照)。   The curtain airbag is formed by overlapping a pair of woven fabric panels and stitching the peripheral edge portion of the inflatable portion formed between the two woven fabric panels (for example, see Patent Document 1). .

カーテンエアバッグは、前席側方と後席側方とに膨張部が設けられ車両前後方向に長い形状となっている。このようなカーテンエアバッグは、まず、ガス供給口の一方の側縁部を縫合始端部として膨張部の周縁部に沿って膨張部の周縁部の途中までを縫合して第1の縫合ラインを形成する。次に、膨張部における第1の縫合ラインとの対辺を別の糸で縫合する。つまり、ガス供給口の他方の側縁部を縫合始端部として膨張部の周縁部に沿って縫合して第2の縫合ラインを形成する。この第2の縫合ラインの縫合終端部を第1の縫合ラインの縫合周端部に平行に重ねて所謂2重縫いを形成して、第1のラインと第2のラインとを接続するようにしている。この縫合方法を用いると比較的大きなカーテンエアバッグも容易に縫合できる。
特開2003−2149号公報
The curtain airbag is provided with inflatable portions on the front seat side and the rear seat side, and has a shape that is long in the vehicle front-rear direction. In such a curtain airbag, first, one side edge portion of the gas supply port is used as a stitching start end portion, and the first stitching line is formed by sewing up to the middle of the peripheral portion of the inflatable portion along the peripheral portion of the inflatable portion. Form. Next, the opposite side of the inflating portion to the first stitching line is stitched with another thread. That is, a second stitching line is formed by stitching along the peripheral edge of the inflating portion with the other side edge of the gas supply port as the stitching start end. The stitching terminal portion of the second stitching line is overlapped in parallel with the stitching peripheral end portion of the first stitching line to form a so-called double stitch so as to connect the first line and the second line. ing. When this stitching method is used, a relatively large curtain airbag can be easily stitched.
JP 2003-2149 A

しかしがら、2重縫い部分は、2重縫いしていない他の部分に比べて、縫合による織布パネルに対する拘束力が大きくなり織布パネルに縮み部分が発生するおそれがあるとともに、針孔同士が重なり針孔が大きくなるおそれがある。このように織布パネルに縮み部分が発生したり、針孔が大きくなると、エアバッグの強度が低下してしまうという問題がある。   However, the double-sewn portion has a greater binding force on the woven fabric panel due to stitching than other portions that are not double-sewn, and there is a risk that the woven fabric panel will shrink, and the needle holes There is a risk that the needle holes will be large. Thus, there is a problem that the strength of the airbag is lowered when the shrinkage portion is generated in the woven fabric panel or the needle hole is enlarged.

そこで、本発明は、複数の縫合ラインが連設されて膨張部の周縁部が縫合されるエアバッグの強度が低下することを抑制することを目的とする。   Therefore, an object of the present invention is to suppress a reduction in strength of an airbag in which a plurality of stitching lines are continuously provided and a peripheral portion of an inflating portion is stitched.

本発明の第1の態様は、一対の織布パネル間に形成される膨張部の周縁部に沿って延在し縫合により前記一対の織布パネルを縫合する縫合部を備えるエアバッグにおいて、前記縫合部は、相互に別体の糸からなる複数の縫合ラインが連設されることで形成されており、隣り合う前記縫合ライン同士は、角部を縫合する縫合部において、交差によって接続しており、前記交差は、前記縫合ライン同士が各一般外形部より延長され相互に交差する方向へ延在することでなされていることを特徴とする。 According to a first aspect of the present invention, there is provided an airbag including a stitching portion that extends along a peripheral portion of an inflating portion formed between a pair of woven fabric panels and stitches the pair of woven fabric panels by stitching. The stitching part is formed by connecting a plurality of stitching lines made of separate threads to each other , and the stitching lines adjacent to each other are connected by crossing at a stitching part that stitches corners. cage, the intersection is characterized in that the suture line to each other has been made by extending the direction you cross one another extending from each common external part.

本発明の第2の態様は、前記第1の態様のエアバッグにおいて、前記一対の織布パネル間において前記膨張部の周縁部に当該周縁部に沿って設けられ前記一対の織布パネル間をシールするシール部を備え、前記縫合部を、前記膨張部に対して前記シール部の外側に配置したことを特徴とする。   According to a second aspect of the present invention, in the airbag according to the first aspect, between the pair of woven fabric panels, the peripheral portion of the inflatable portion is provided along the peripheral portion between the pair of woven fabric panels. A sealing portion for sealing is provided, and the stitching portion is disposed outside the sealing portion with respect to the inflating portion.

本発明の第3の態様は、前記第1の態様のエアバッグにおいて、前記一対の織布パネル間において前記膨張部の周縁部に当該周縁部に沿って設けられ前記一対の織布パネル間をシールするシール部を備え、前記シール部は、インナーシール部と、前記膨張部に対して前記インナーシール部の外側に前記インナーシール部に間隔を設けて配置されるアウターシール部と、を備え、前記縫合部を、前記インナーシール部と前記アウターシール部との間に配置したことを特徴とする。   According to a third aspect of the present invention, in the airbag according to the first aspect, between the pair of woven fabric panels, the peripheral portion of the inflatable portion is provided along the peripheral portion between the pair of woven fabric panels. A seal portion that seals, the seal portion includes an inner seal portion, and an outer seal portion that is arranged on the outer side of the inner seal portion with respect to the inflatable portion with a space provided between the inner seal portion, The stitching portion is arranged between the inner seal portion and the outer seal portion.

本発明の第4の態様は、前記第1の態様のエアバッグにおいて、前記一対の織布パネル間において前記膨張部の周縁部に当該周縁部に沿って設けられ前記一対の織布パネル間をシールするシール部を備え、前記縫合部を、前記シール部内に配置したことを特徴とする。   According to a fourth aspect of the present invention, in the airbag according to the first aspect, between the pair of woven fabric panels, the peripheral portion of the inflatable portion is provided along the peripheral portion between the pair of woven fabric panels. A sealing portion for sealing is provided, and the stitching portion is disposed in the sealing portion.

本発明によれば、隣り合う縫合ライン同士は、角部を縫合する縫合部において、交差によって接続しており、その交差は、縫合ライン同士が各一般外形部より延長され相互に交差する方向へ延在することでなされていることにより、2重縫いに比べ、縫合による織布パネルに対する拘束力も他の部分の拘束力に近い大きさとなり織布パネルに縮み部分が発生することを抑制でき、また、針孔同士が重なり針孔が大きくなることも抑制できるので、エアバッグの強度が低下することを抑制することができる。
また、本発明によれば、縫合部はエアバッグの角部において湾曲した縫合ラインを採るのではなく、一般外形部から延長された縫合ライン同士が相互に交差する方向へ延在するようなされていることで、一般外形部から角部にかけての、通常湾曲を伴う縫合部を一般外形部から延長した延在部同士を交差させる縫合を進めることで容易に角部の縫合が行えるうえ、交差した縫合部は交差した方向へ延在するので縫合同士が並んで基布に負荷を与えない
According to the present invention, the suture line and adjacent, the direction in suture portion suturing the corners, are connected by the intersection, the intersection is stitched line with each other you cross one another extending from each common outer portion As compared with double stitching, the restraining force on the woven fabric panel is close to the restraining force of other parts, and the shrinkage of the woven fabric panel can be suppressed. Moreover, since it is possible to suppress the needle holes from overlapping each other and the needle holes from becoming larger, it is possible to suppress a decrease in the strength of the airbag.
Further, according to the present invention, the stitching portion does not take a curved stitching line at the corner of the airbag, but the stitching lines extended from the general outer shape portion extend in a direction crossing each other. As a result, it is possible to easily sew the corners by advancing the suturing that extends from the general outer shape portion to the general outer shape portion to the corner portion, and the intersecting portions extending from the general outer shape portion. Since the stitched portions extend in the intersecting direction, the stitches are aligned and do not apply a load to the base fabric .

[第1の実施形態]
本発明の第1の実施形態を図1〜図3に基づいて説明する。本実施形態は、エアバッグとしてカーテンエアバッグへの適用例である。図1は、本実施形態にかかるカーテンエアバッグの展開状態を示す正面図、図2は、図1中A−A線に沿った拡大断面図、図3は、本実施形態にかかるカーテンエアバッグの縫合部およびシール部の配置状態を示す図1中B部の拡大図である。
[First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS. This embodiment is an application example to a curtain airbag as an airbag. 1 is a front view showing a deployed state of a curtain airbag according to the present embodiment, FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a curtain airbag according to the present embodiment. It is an enlarged view of the B section in FIG.

図1に示すように、カーテンエアバッグ1は、車室の側部の上部に配設されて、下方に向けて膨張し、車室内側面に展開する。ここで、車両には、フロントピラー2、センタピラー2a、リヤピラー2bが設けられ、これら各ピラー2、2a、2b間にフロントサイドウインド3およびリヤサイドウインド3aが設けられる。また、各ピラー2、2a、2bの上端部は、ルーフサイドレール4で連結される。   As shown in FIG. 1, the curtain airbag 1 is arrange | positioned at the upper part of the side part of a compartment, expand | swells below, and expand | deploys to a vehicle interior side surface. Here, the vehicle is provided with a front pillar 2, a center pillar 2a, and a rear pillar 2b, and a front side window 3 and a rear side window 3a are provided between the pillars 2, 2a, and 2b. Further, the upper ends of the pillars 2, 2 a and 2 b are connected by the roof side rail 4.

カーテンエアバッグ1は、非動作時は、フロントピラー2からルーフサイドレール4を経由してリヤピラー2bに沿って収納部(図示せず)に格納されており、側面衝突時や側転時等に図1に示すように展開して乗員を保護する。カーテンエアバッグ1の前側縁、上側縁および後側縁には、このカーテンエアバッグ1を各ピラー2、2a、2bに支持する複数の止め具5を設けてある。   The curtain airbag 1 is stored in a storage part (not shown) along the rear pillar 2b from the front pillar 2 through the roof side rail 4 when not in operation, and is used for a side collision or a side roll. Deploy as shown in FIG. 1 to protect the occupant. A plurality of stoppers 5 that support the curtain airbag 1 on the pillars 2, 2 a, and 2 b are provided on the front side edge, the upper side edge, and the rear side edge of the curtain airbag 1.

カーテンエアバッグ1は、図2に示すように、一対の織布パネル11、12を重ね合わせて、それら両織布パネル11、12間に膨張部13を形成することにより構成する。膨張部13は、その膨張部13の周縁部に沿って延在し縫合により一対の織布パネル11、12を縫合する縫合部14と、接着剤から構成され両織布パネル11、12を接合するシール部15と、を設けて気密性を確保しつつ輪郭を形成してある。   As shown in FIG. 2, the curtain airbag 1 is configured by stacking a pair of woven fabric panels 11 and 12 and forming an inflatable portion 13 between the woven fabric panels 11 and 12. The inflatable portion 13 extends along the peripheral edge of the inflatable portion 13 and stitches the pair of woven fabric panels 11 and 12 by stitching. The inflatable portion 13 is composed of an adhesive and joins the woven fabric panels 11 and 12 together. The sealing portion 15 is provided to form a contour while ensuring airtightness.

膨張部13は、前席の側方に対応した前席膨張部13Fと、後席の側方に対応した後席膨張部13Rと、を有しており、それら前席膨張部13Fと後席膨張部13Rとの間は、比較的広い連通部13Tを形成した非膨張部13Uで区画される。   The inflatable portion 13 includes a front seat inflatable portion 13F corresponding to the side of the front seat and a rear seat inflatable portion 13R corresponding to the side of the rear seat. The front seat inflatable portion 13F and the rear seat A space between the inflatable portion 13R and the inflatable portion 13R is defined by a non-inflatable portion 13U having a relatively wide communication portion 13T.

また、カーテンエアバッグ1の上側中央部にはガス供給口16を設けてあり、このガス供給口16にインフレータ17のガス供給パイプ17aを気密状態で接続してある。インフレータ17は、作動されることにより爆発して瞬時にガスを発生し、そのガスがガス供給口16から膨張部13内に供給されることにより、格納されたカーテンエアバッグ1を図1に示すように展開する。   Further, a gas supply port 16 is provided in the upper center portion of the curtain airbag 1, and a gas supply pipe 17 a of the inflator 17 is connected to the gas supply port 16 in an airtight state. The inflator 17 explodes when it is actuated to instantaneously generate gas, and the gas is supplied from the gas supply port 16 into the inflating portion 13, whereby the stored curtain airbag 1 is shown in FIG. 1. Expand as follows.

尚、本実施形態では、膨張部13内を、副室13Sを形成するための隔膜13P1や内部の圧力配分を調整する隔膜13P2で仕切ってある。   In the present embodiment, the inside of the inflating portion 13 is partitioned by a diaphragm 13P1 for forming the sub chamber 13S and a diaphragm 13P2 for adjusting internal pressure distribution.

カーテンエアバッグ1は、前席膨張部13Fおよび後席膨張部13Rの配置により、全体的に車両前後方向に細長い形状となっている。膨張部13の周縁部は、略直線部分や緩い曲線部分からなる一般外形部Fや、角部Cが設けられる。   The curtain airbag 1 has a generally elongated shape in the vehicle front-rear direction due to the arrangement of the front seat inflating portion 13F and the rear seat inflating portion 13R. The peripheral portion of the inflating portion 13 is provided with a general outer shape portion F and a corner portion C that are substantially straight portions or loosely curved portions.

そして、縫合部14およびシール部15は、膨張部13周縁の一般外形部Fや角部Cに沿って配置する。   And the stitching | suture part 14 and the seal | sticker part 15 are arrange | positioned along the general external shape part F and the corner | angular part C of the expansion part 13 periphery.

膨張部13の周縁部は、ガス供給口16によって分断されるため、縫合部14はガス供給口16の両側からそれぞれ分割して縫合開始することになり、少なくとも2本の縫合ライン14a、14b(図3参照)が設けられる。縫合ライン14a、14bは、相互に別体の糸からなる。つまり、縫合部14は、相互に別体の糸からなる複数の縫合ライン14a,14bが連設されることで形成されている。   Since the peripheral portion of the inflating portion 13 is divided by the gas supply port 16, the stitching portion 14 is divided and started from both sides of the gas supply port 16, and at least two stitching lines 14a and 14b ( 3) is provided. The stitching lines 14a and 14b are made of separate threads. That is, the stitching portion 14 is formed by connecting a plurality of stitching lines 14a and 14b made of separate threads.

図3に示すように、隣り合う縫合ライン14a,14b同士は、交差によって接続しており、その交差は、縫合ライン14a,14b同士が相互に異なる方向へ延在することでなされている。詳しくは、角部Cを縫合する縫合部14は、一般外形部Fからその角部C両端の湾曲開始部Ce1、Ce2に向かって2つの縫合ライン14a、14bが至っている。それぞれの縫合ライン14a、14bを、角部Cの湾曲開始部Ce1、Ce2での略接線方向に沿って略直線状に延長し、延長したそれぞれの縫合ライン14a、14bを、交差点Iをもって交差させる。そして、その交差点Iからそれぞれの縫合ライン14a、14bを所定距離L1、L2だけ延長させて終端14E1、14E2としてある。   As shown in FIG. 3, the adjacent suture lines 14a and 14b are connected by an intersection, and the intersection is made by extending the suture lines 14a and 14b in different directions. Specifically, the stitching portion 14 that stitches the corner portion C has two stitching lines 14a and 14b from the general outer shape portion F toward the bending start portions Ce1 and Ce2 at both ends of the corner portion C. The respective suture lines 14a and 14b are extended in a substantially straight line along the substantially tangential direction at the bending start portions Ce1 and Ce2 of the corner portion C, and the extended respective suture lines 14a and 14b are crossed at an intersection I. . Then, the stitching lines 14a and 14b are extended from the intersection I by a predetermined distance L1 and L2, respectively, so as to be terminal ends 14E1 and 14E2.

また、本実施形態では、縫合部14を、膨張部13に対してシール部15の外側に配置してある。   In the present embodiment, the stitching portion 14 is disposed outside the seal portion 15 with respect to the expanding portion 13.

以上説明したように、本実施形態のカーテンエアバッグ1では、隣り合う縫合ライン14a,14b同士は、交差によって接続しており、その交差は、縫合ライン14a,14b同士が相互に異なる方向へ延在することでなされている。したがって、本実施形態のカーテンエアバッグ1では、2重縫いに比べ、縫合による織布パネル11,12に対する拘束力も他の部分の拘束力に近い大きさとなり織布パネル11,12に縮み部分が発生することを抑制でき、また、針孔同士が重なり針孔が大きくなることも抑制できるので、カーテンエアバッグ1の強度が低下することを抑制することができる。   As described above, in the curtain airbag 1 of the present embodiment, the adjacent stitching lines 14a and 14b are connected by an intersection, and the intersection extends in directions different from each other by the stitching lines 14a and 14b. It is done by being. Therefore, in the curtain airbag 1 of the present embodiment, the restraining force on the woven fabric panels 11 and 12 by stitching is close to the restraining force of the other portions as compared with double stitching, and the woven fabric panels 11 and 12 have a contracted portion. Since it can suppress that it generate | occur | produces and needle holes overlap and a needle hole becomes large, it can suppress that the intensity | strength of the curtain airbag 1 falls.

また、上記の通り、本実施形態のカーテンエアバッグ1では、2重縫いに比べ、縫合による織布パネル11,12に対する拘束力も他の部分の拘束力に近い大きさとなるので、縫合ライン14a,14b同士の交差点Iに応力集中が発生することを抑制することができる。   Further, as described above, in the curtain airbag 1 of the present embodiment, the restraining force on the woven fabric panels 11 and 12 by stitching is close to the restraining force of other portions as compared with double stitching. It is possible to suppress the occurrence of stress concentration at the intersection I between 14b.

また、本実施形態では、縫合ライン14a,14b同士を、角部Cで交差させるので、縫合がし易い。   Further, in the present embodiment, the stitching lines 14a and 14b are crossed at the corner C, so that stitching is easy.

また、本実施形態では縫合部14を、膨張部13に対してシール部15の外側に形成したので、縫い針をシール部15の接着剤で汚すのを抑制しつつ縫合することができる。したがって、縫合時に縫い針を頻繁に取り換えたり、掃除したりする手間を省くことができるので、縫合作業の能率化を図ることができる。   In this embodiment, since the stitching portion 14 is formed outside the seal portion 15 with respect to the inflatable portion 13, the stitches can be stitched while suppressing the sewing needle from being stained with the adhesive of the seal portion 15. Accordingly, it is possible to save the trouble of frequently changing or cleaning the sewing needle at the time of sewing, so that the efficiency of the sewing work can be improved.

[第2の実施形態]
次に、本発明の第2の実施形態を図4に基づいて説明する。第1の実施形態と同一構成部分に同一符号を付して重複する説明を省略して述べる。図4は、本実施形態にかかるカーテンエアバッグの縫合部およびシール部の配置状態を示す要部拡大正面図である。
[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted. FIG. 4 is an enlarged front view of a main part showing the arrangement of the stitched portion and the seal portion of the curtain airbag according to the present embodiment.

本実施形態が第1の実施形態と異なる点は、図4に示すように、カーテンエアバッグ1Aにおいて、シール部15を、膨張部13に対して内側に配置されるインナーシール部15Mと、このインナーシール部15Mに所定間隔Sを設けて外側に配置されるアウターシール部15Nと、で構成し、縫合部14をインナーシール部15Mとアウターシール部15Nとの間に配置してある点である。   As shown in FIG. 4, the present embodiment is different from the first embodiment in that, in the curtain airbag 1 </ b> A, the seal portion 15 is disposed inside the inflatable portion 13 with an inner seal portion 15 </ b> M. The outer seal portion 15N is disposed outside the inner seal portion 15M with a predetermined interval S, and the stitching portion 14 is disposed between the inner seal portion 15M and the outer seal portion 15N. .

したがって、本実施形態によれば、角部Cに配置される縫合ライン14a、14bの交差点Iの近傍部分を除いて、縫合部14を、インナーシール部15Mとアウターシール部15Nとの間に配置したので、縫い針をシール部15の接着剤で汚すのを抑制できる。また、縫合部14の内外をインナーシール部15Mとアウターシール部15Nでシールできるので、膨張部13の気密性をより高めることができる。   Therefore, according to the present embodiment, the suture portion 14 is disposed between the inner seal portion 15M and the outer seal portion 15N except for the vicinity of the intersection I of the suture lines 14a and 14b arranged at the corner portion C. Therefore, it can suppress that a sewing needle is soiled with the adhesive agent of the seal part 15. FIG. Moreover, since the inside and outside of the stitching portion 14 can be sealed with the inner seal portion 15M and the outer seal portion 15N, the airtightness of the expansion portion 13 can be further enhanced.

[第3の実施形態]
次に、本発明の第3の実施形態を図5に基づいて説明する。第1の実施形態と同一構成部分に同一符号を付して重複する説明を省略して述べる。図5は、本実施形態にかかるカーテンエアバッグの縫合部およびシール部の配置状態を示す要部拡大正面図。
[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted. FIG. 5 is an enlarged front view of a main part showing an arrangement state of a stitched portion and a seal portion of the curtain airbag according to the present embodiment.

本実施形態が第1の実施形態と異なる点は、図5に示すように、カーテンエアバッグ1Bにおいて、縫合部14を、シール部15の内(巾W内)に配置してある点である。詳しくは、シール部15の巾W方向の略中央部に縫合部14を配置してある。   The present embodiment is different from the first embodiment in that, as shown in FIG. 5, in the curtain airbag 1 </ b> B, the stitching portion 14 is arranged in the seal portion 15 (in the width W). . Specifically, the stitching portion 14 is disposed at a substantially central portion in the width W direction of the seal portion 15.

したがって、本実施形態によれば、縫合部14を、シール部15内(巾W内)に配置したので、膨張部13の周縁部に配置する縫合部14とシール部15とを併せた縫い代を狭くでき、織布パネル11、12の歩留まりを向上できる。   Therefore, according to the present embodiment, since the stitching portion 14 is disposed in the seal portion 15 (in the width W), a seam allowance combining the stitching portion 14 disposed on the peripheral portion of the inflatable portion 13 and the seal portion 15 is provided. It can be narrowed and the yield of the woven fabric panels 11 and 12 can be improved.

なお、本発明は、上記各実施形態に限ることなく本発明の要旨を逸脱しない範囲で他の実施形態を各種採用することができる。例えば、エアバッグは、カーテンエアバッグ1,1A,1Bに限ることなく、運転席用や助手席用、歩行者用など他の部位に用いられるエアバッグであっても良い。   The present invention is not limited to the above-described embodiments, and various other embodiments can be adopted without departing from the gist of the present invention. For example, the airbag is not limited to the curtain airbags 1, 1 </ b> A, 1 </ b> B, and may be an airbag used for other parts such as a driver seat, a passenger seat, and a pedestrian.

また、縫合部14は、2つの縫合ライン14a,14bから構成されているものに限ることなく、3つ以上の縫合ラインから構成されているものであっても良い。   Moreover, the stitching | suture part 14 is not restricted to what is comprised from two stitching lines 14a and 14b, You may be comprised from three or more stitching lines.

本発明の第1の実施形態にかかるカーテンエアバッグの展開状態を示す正面図。The front view which shows the expansion | deployment state of the curtain airbag concerning the 1st Embodiment of this invention. 図1中A−A線に沿った拡大断面図。The expanded sectional view along the AA line in FIG. 本発明の第1の実施形態にかかるカーテンエアバッグの縫合部およびシール部の配置状態を示す図1中B部の拡大図。The enlarged view of the B section in Drawing 1 showing the arrangement state of the stitching part and seal part of the curtain airbag concerning a 1st embodiment of the present invention. 本発明の第2の実施形態にかかるカーテンエアバッグの縫合部およびシール部の配置状態を示す要部拡大正面図。The principal part enlarged front view which shows the arrangement | positioning state of the stitching | suture part and seal part of the curtain airbag concerning the 2nd Embodiment of this invention. 本発明の第3実施形態にかかるカーテンエアバッグの縫合部およびシール部の配置状態を示す要部拡大正面図。The principal part enlarged front view which shows the arrangement | positioning state of the stitching | suture part and seal part of the curtain airbag concerning 3rd Embodiment of this invention.

符号の説明Explanation of symbols

1 カーテンエアバッグ(エアバッグ)
11、12 織布パネル
13 膨張部
14 縫合部
14a、14b 縫合ライン
15 シール部
15M インナーシール部
15N アウターシール部
1 Curtain airbag (airbag)
DESCRIPTION OF SYMBOLS 11, 12 Woven fabric panel 13 Expansion part 14 Sewing part 14a, 14b Sewing line 15 Seal part 15M Inner seal part 15N Outer seal part

Claims (4)

一対の織布パネル間に形成される膨張部の周縁部に沿って延在し縫合により前記一対の織布パネルを縫合する縫合部を備えるエアバッグにおいて、
前記縫合部は、相互に別体の糸からなる複数の縫合ラインが連設されることで形成されており、
隣り合う前記縫合ライン同士は、角部を縫合する縫合部において、交差によって接続しており、前記交差は、前記縫合ライン同士が各一般外形部より延長され相互に交差する方向へ延在することでなされていることを特徴とするエアバッグ。
In an airbag including a stitching portion that extends along a peripheral edge portion of an inflating portion formed between a pair of woven fabric panels and stitches the pair of woven fabric panels by stitching,
The suturing portion is formed by connecting a plurality of suturing lines made of separate threads to each other,
The suture line and adjacent, the stapling portion suturing the corners, are connected by the intersection, the intersection is the suture line to each other extending in the direction you cross one another extending from each common outer portion An air bag characterized by that.
前記一対の織布パネル間において前記膨張部の周縁部に当該周縁部に沿って設けられ前記一対の織布パネル間をシールするシール部を備え、
前記縫合部を、前記膨張部に対して前記シール部の外側に配置したことを特徴とする請求項1に記載のエアバッグ。
A seal portion is provided between the pair of woven fabric panels and is provided along the peripheral portion at the peripheral portion of the inflating portion, and seals between the pair of woven fabric panels.
The airbag according to claim 1, wherein the stitched portion is disposed outside the seal portion with respect to the inflatable portion.
前記一対の織布パネル間において前記膨張部の周縁部に当該周縁部に沿って設けられ前記一対の織布パネル間をシールするシール部を備え、
前記シール部は、インナーシール部と、前記膨張部に対して前記インナーシール部の外側に前記インナーシール部に間隔を設けて配置されるアウターシール部と、を備え、
前記縫合部を、前記インナーシール部と前記アウターシール部との間に配置したことを特徴とする請求項1に記載のエアバッグ。
A seal portion is provided between the pair of woven fabric panels and is provided along the peripheral portion at the peripheral portion of the inflating portion, and seals between the pair of woven fabric panels.
The seal portion includes an inner seal portion, and an outer seal portion disposed on the outer side of the inner seal portion with respect to the inflating portion with a space provided in the inner seal portion,
The airbag according to claim 1, wherein the stitching portion is disposed between the inner seal portion and the outer seal portion.
前記一対の織布パネル間において前記膨張部の周縁部に当該周縁部に沿って設けられ前記一対の織布パネル間をシールするシール部を備え、
前記縫合部を、前記シール部内に配置したことを特徴とする請求項1に記載のエアバッグ。
A seal portion is provided between the pair of woven fabric panels and is provided along the peripheral portion at the peripheral portion of the inflating portion, and seals between the pair of woven fabric panels.
The airbag according to claim 1, wherein the stitching portion is disposed in the seal portion.
JP2007254448A 2007-09-28 2007-09-28 Airbag Expired - Fee Related JP5016431B2 (en)

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