JP5158663B2 - Airbag device - Google Patents

Airbag device Download PDF

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Publication number
JP5158663B2
JP5158663B2 JP2005260667A JP2005260667A JP5158663B2 JP 5158663 B2 JP5158663 B2 JP 5158663B2 JP 2005260667 A JP2005260667 A JP 2005260667A JP 2005260667 A JP2005260667 A JP 2005260667A JP 5158663 B2 JP5158663 B2 JP 5158663B2
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Japan
Prior art keywords
airbag
gas
inflator
gas rectifying
folded
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Expired - Fee Related
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JP2005260667A
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JP2007069805A (en
Inventor
裕之 谷山
善夫 嶋▲崎▼
航 佐々木
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Ashimori Industry Co Ltd
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Ashimori Industry Co Ltd
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Priority to JP2005260667A priority Critical patent/JP5158663B2/en
Application filed by Ashimori Industry Co Ltd filed Critical Ashimori Industry Co Ltd
Priority to CN2009102259113A priority patent/CN101698403B/en
Priority to PCT/JP2006/309297 priority patent/WO2007007461A1/en
Priority to CN2009102259109A priority patent/CN101698402B/en
Priority to EP06746128A priority patent/EP1908643B1/en
Priority to CN2013100903314A priority patent/CN103171511A/en
Priority to KR1020087000397A priority patent/KR101359432B1/en
Priority to CN2006800247347A priority patent/CN101218130B/en
Priority to US11/994,656 priority patent/US7878533B2/en
Priority to EP10172505.9A priority patent/EP2241483B1/en
Priority to AU2006267780A priority patent/AU2006267780B2/en
Publication of JP2007069805A publication Critical patent/JP2007069805A/en
Priority to AU2011202446A priority patent/AU2011202446B2/en
Application granted granted Critical
Publication of JP5158663B2 publication Critical patent/JP5158663B2/en
Expired - Fee Related legal-status Critical Current
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Description

本発明は、自動車のエアバッグ装置、とくにインフレーターから発生するガスの流出方向を整流するガス整流部材を備えたエアバッグ装置に関する。   The present invention relates to an airbag apparatus for an automobile, and more particularly to an airbag apparatus provided with a gas rectifying member that rectifies the outflow direction of gas generated from an inflator.

従来、エアバッグ装置として、インフレーターから発生するガスの流出方向を整流し、エアバッグの展開初期に膨張する部分にガス流を供給するためのガス整流部材を備え、エアバッグの展開をスムースに行うようにしている(特許文献1参照)。   Conventionally, as an airbag device, a gas rectifying member for rectifying the flow direction of gas generated from an inflator and supplying a gas flow to a portion that expands at the initial stage of airbag deployment is provided to smoothly deploy the airbag. (See Patent Document 1).

図16は、そのようなエアバッグ装置の断面図である。このエアバッグ装置10Pは、ケース12P、エアバッグ14P、インフレーター16P及びガス整流部材18Pとからなり、インフレーター16Pの作動によるエアバッグ14Pの膨張圧力によりエアバッグ14Pが膨張展開するが、ガス整流部材18Pの口元は、ケース12Pの開口周縁部12aPにバッグリテーナ26Pを介してエアバッグ14Pと共に取り付けられている。   FIG. 16 is a cross-sectional view of such an airbag device. The airbag device 10P includes a case 12P, an airbag 14P, an inflator 16P, and a gas rectifying member 18P. The airbag 14P is inflated and deployed by the inflation pressure of the airbag 14P due to the operation of the inflator 16P. The mouth is attached to the opening peripheral edge 12aP of the case 12P together with the airbag 14P via the bag retainer 26P.

図17は前記エアバッグ装置10Pの分解斜視図である。ガス整流部材18Pは、ケース12P内において、インフレーター16Pとエアバッグ14Pの間に配置され、インフレーター16Pの発するガスによりエアバッグ14P内部に展開して、そのガス噴出口30P、30aPからエアバッグ14P内にガスを供給する1枚又は複数枚の基布を立体状に縫製して形成した袋状をなしている。   FIG. 17 is an exploded perspective view of the airbag device 10P. In the case 12P, the gas rectifying member 18P is disposed between the inflator 16P and the airbag 14P, and is expanded inside the airbag 14P by the gas generated by the inflator 16P, and the gas jetting ports 30P and 30aP enter the airbag 14P. It forms a bag shape formed by sewing one or more base fabrics for supplying gas to a three-dimensional shape.

前記ケース12Pは、図17に示すように、その開口周縁部12aPには、エアバッグ14P及びガス整流部材18Pを取付け固定するように、複数の固定孔20Pが設けられている。また、ケース12Pの底部側面には、インフレーター16Pを挿入するための挿入口22Pが設けられている。   As shown in FIG. 17, the case 12 </ b> P is provided with a plurality of fixing holes 20 </ b> P at the opening peripheral edge 12 a </ i> P so that the airbag 14 </ b> P and the gas rectifying member 18 </ b> P are attached and fixed. An insertion port 22P for inserting the inflator 16P is provided on the bottom side surface of the case 12P.

組立時には、図17に示すように、折畳まれたエアバッグ14Pに、背後からガス整流部材18Pの先端18aPを挿入する。その際、ガス整流部材18Pの先端18aPを、折り畳んだエアバッグ14Pの下方から挿入し、ガス整流部材18Pの4つの取付部32Pをエアバッグ14Pの対応する取付部28Pに外側から重ね合わせる。 At the time of assembly, as shown in FIG. 17 , the tip 18aP of the gas rectifying member 18P is inserted into the folded airbag 14P from behind. At that time, the tip 18aP of the gas rectifying member 18P is inserted from below the folded airbag 14P, and the four mounting portions 32P of the gas rectifying member 18P are overlapped with the corresponding mounting portions 28P of the airbag 14P from the outside.

この従来のエアバッグ装置10Pでは、エアバッグ14Pをガス整流部材18Pと別体の状態で折畳み、この折畳んだエアバッグ14Pにガス整流部材18Pを挿入した後に、ガス整流部材18Pとエアバッグ14Pとをケース12Pに固定するが、前記折り畳まれたエアバッグ14Pにガス整流部材18Pを挿入する際には、折り畳まれたエアバッグ14Pの上面部34Pと下面部36Pとの間を、エアバッグ14Pが崩れないように下から広げて、その広げた空間にガス整流部材18Pの先端18aPを挿入するため、エアバッグ14Pを支える作業とガス整流部材18Pを挿入する動作とを同時に行う必要があり、そのためエアバッグ装置10Pへのガス整流部材18Pの挿入作業は煩雑であるという問題がある。   In this conventional airbag device 10P, the airbag 14P is folded separately from the gas rectifying member 18P, the gas rectifying member 18P is inserted into the folded airbag 14P, and then the gas rectifying member 18P and the airbag 14P are inserted. Are fixed to the case 12P. When the gas rectifying member 18P is inserted into the folded airbag 14P, the airbag 14P is interposed between the upper surface portion 34P and the lower surface portion 36P of the folded airbag 14P. In order to insert the tip 18aP of the gas rectifying member 18P into the expanded space so as not to collapse, it is necessary to simultaneously perform the operation of supporting the airbag 14P and the operation of inserting the gas rectifying member 18P. Therefore, there is a problem that the operation of inserting the gas rectifying member 18P into the airbag device 10P is complicated.

また、ガス整流部材18Pをエアバッグ装置10Pに取り付ける際には、エアバッグ14Pの取付部28Pに前記ガス整流部材18Pの取付部32Pを外側から両取付部28P、32Pに設けられた固定孔の位置を一致させて重ね合わせ、その後にケース12Pの開口周縁部12aPに設けられた複数の固定孔20Pと前記両取付部28P、32Pの固定孔の位置を一致させて重ね合わせて、前記固定孔にネジ等を挿入して螺合してガス整流部材18Pを固定させる。このようにエアバッグ装置10Pへのガス整流部材18Pの取付作業は煩雑で時間がかかり、作業効率も上がらないという問題がある。   Further, when the gas rectifying member 18P is attached to the airbag device 10P, the mounting portion 28P of the gas rectifying member 18P is attached to the attachment portion 28P of the airbag 14P from the outside through the fixing holes provided in the attachment portions 28P and 32P. The positions of the fixing holes 20P and the mounting holes 28P, 32P are aligned with the positions of the plurality of fixing holes 20P provided in the opening peripheral edge portion 12aP of the case 12P. A screw or the like is inserted into and screwed to fix the gas rectifying member 18P. As described above, the operation of attaching the gas rectifying member 18P to the airbag device 10P is complicated and takes time, and there is a problem that the working efficiency does not increase.

特開2001−163143号公報JP 2001-163143 A

本発明は、前記従来技術が有する問題に鑑みてなされたものであって、その目的は、ガス整流部材を備えたエアバッグ装置の組立作業を容易にして、その組立作業効率を向上させることである。   The present invention has been made in view of the problems of the prior art, and its object is to facilitate the assembly work of an airbag device including a gas rectifying member and to improve the assembly work efficiency. is there.

請求項1の発明は、インフレーターと、中央にインフレーター取付口を有し前記インフレーターからのガス流で膨張可能に中央に空間を形成して折り畳んだエアバッグと、前記取付口の近傍で前記エアバッグの内側に配置され前記エアバッグに係止する係止手段を備えたクッションリングと、前記クッションリングに対向して前記エアバッグ外側に配置されたベースプレートと、前記インフレーターからのガスをエアバッグが展開初期に膨張する乗員側部分に案内する織布製のガス整流部材を備えたエアバッグ装置であって、前記ガス整流部材は、中央部分にエアバッグの前記取付口と略同一の大きさの開口が形成されたリング状部と、前記リング状部の外周に間隔を隔てて配置され前記クッションリングの係止手段に係止される取付部と、前記取付部の外側に一体に形成され、前記取付部よりも幅広の互いに間隔を隔てたガス整流片を有し、かつ前記ガス整流片を前記折り畳んだエアバッグの内周面に沿って乗員側に向かって伸展させたことを特徴とする。
請求項2の発明は、インフレーターと、中央にインフレーター取付口を有し前記インフレーターからのガス流で膨張可能に中央に空間を形成して折り畳んだエアバッグと、前記取付口の近傍で前記エアバッグの内側に配置され前記エアバッグに係止する係止手段を備えたクッションリングと、前記クッションリングに対向して前記エアバッグ外側に配置されたベースプレートと、前記インフレーターからのガスをエアバッグが展開初期に膨張する乗員側部分に案内する織布製のガス整流部材を備えたエアバッグ装置であって、前記ガス整流部材は、前記クッションリングの係止手段に係止される複数の取付部と、前記複数の取付部と一体に形成されガスを整流する機能を有する長方形状のガス整流片を有し、前記取付部間に前記ガス整流片の横幅に対して縦方向に延在する切り溝が形成され、ガス整流片の横幅は、折り畳んだエアバッグの内側に形成される孔の周面である内周面の長さよりも長く形成されており、かつ前記ガス整流片を前記折り畳んだエアバッグの内周面に沿って乗員側に向かって伸展させたことを特徴とする。
請求項3の発明は、インフレーターと、中央にインフレーター取付口を有し前記インフレーターからのガス流で膨張可能に中央に空間を形成して折り畳んだエアバッグと、前記取付口の近傍で前記エアバッグの内側に配置され前記エアバッグに係止する係止手段を備えたクッションリングと、前記クッションリングに対向して前記エアバッグ外側に配置されたベースプレートと、前記インフレーターからのガスをエアバッグが展開初期に膨張する乗員側部分に案内する織布製のガス整流部材を備えたエアバッグ装置であって、前記ガス整流部材は、中央部にエアバッグの展開初期時に破断を容易にする破断部が形成されたエアバッグの保持部材と、前記保持部材の外側に一体に形成された前記クッションリングの係止手段に係止する取付部及び、前記保持部材の外側で前記取付部と異なる位置に一体に形成されたガス整流片を有し、かつ前記保持部材で折り畳んだエアバッグを包み、前記ガス整流片を前記折り畳んだエアバッグの内周面に沿って乗員側に向かって伸展させたことを特徴とする。
The invention of claim 1 includes an inflator, an airbag having an inflator attachment port in the center, an airbag that is folded by forming a space in the center so as to be inflatable by a gas flow from the inflator, and the airbag in the vicinity of the attachment port. The airbag deploys a cushion ring having a locking means that is disposed inside the airbag and that is locked to the airbag, a base plate that is disposed outside the airbag so as to face the cushion ring, and gas from the inflator An airbag apparatus comprising a gas rectifying member made of woven fabric that guides to an occupant side portion that inflates in the initial stage, wherein the gas rectifying member has an opening that is substantially the same size as the mounting opening of the airbag at a central portion. A ring-shaped portion formed with a mounting portion that is disposed on the outer periphery of the ring-shaped portion with a gap and is locked to the locking means of the cushion ring; Is formed integrally on the outside of the serial mounting portion, wherein a gas rectification pieces spaced apart from each other wider than the mounting portion, and the occupant side along the gas rectification piece on the inner peripheral surface of the folded air bag wherein It is characterized by being extended toward.
According to a second aspect of the present invention, there is provided an inflator, an airbag having an inflator attachment port at a center thereof, a folded airbag having a space formed in the center so as to be inflatable by a gas flow from the inflator, and the airbag in the vicinity of the attachment port. The airbag deploys a cushion ring having a locking means that is disposed inside the airbag and that is locked to the airbag, a base plate that is disposed outside the airbag so as to face the cushion ring, and gas from the inflator An airbag device including a gas rectifying member made of woven fabric that guides to an occupant-side portion that is initially inflated, wherein the gas rectifying member includes a plurality of attachment portions that are locked to locking means of the cushion ring. A rectangular gas rectifying piece formed integrally with the plurality of attachment portions and having a function of rectifying gas, and the gas rectification piece between the attachment portions. A kerf extending in the vertical direction with respect to the width is formed, and the lateral width of the gas rectifying piece is formed to be longer than the length of the inner peripheral surface, which is the peripheral surface of the hole formed inside the folded airbag. And the gas rectifying piece is extended toward the occupant side along the inner peripheral surface of the folded airbag.
According to a third aspect of the present invention, there is provided an inflator, an airbag having an inflator attachment port in the center, and an air bag that is folded by forming a space in the center so as to be inflatable by a gas flow from the inflator, and the airbag in the vicinity of the attachment port The airbag deploys a cushion ring having a locking means that is disposed inside the airbag and that is locked to the airbag, a base plate that is disposed outside the airbag so as to face the cushion ring, and gas from the inflator An airbag apparatus comprising a gas rectifying member made of woven fabric that guides to an occupant side portion that inflates in the initial stage, wherein the gas rectifying member has a rupture portion that facilitates rupture at the initial stage of deployment of the airbag. A holding member for the formed airbag, and a mounting portion for locking to the locking means of the cushion ring integrally formed on the outside of the holding member; A gas rectifying piece integrally formed at a position different from the attachment portion on the outside of the holding member, and wrapping the airbag folded by the holding member, and the gas rectifying piece is inside the folded airbag It is characterized by extending toward the occupant side along the circumferential surface.

クッションリングの係止手段に取り付けたエアバッグにガス整流部材を取り付けるだけでガス整流部材をエアバッグの中央に配置できると共に、その状態でガス整流片をエアバッグの内周に沿うように伸展させるだけで、前記ガス整流部材の配置が完了し、かつこのように組み立てたエアバッグ並びにガス整流部材を前記クッションリングの係止手段により、ベースプレートに取り付けることができるから、ガス整流部材を備えたエアバッグ装置の組立作業を容易に行うことができ、従ってその作業効率を向上することができる。 With only a gas rectifying member attaching the gas rectification member airbags attached to the locking means of the cushion ring can be placed in the center of the air bag, it stretched to along the gas rectification pieces on the inner periphery of the airbag in this state only, the complete arrangement of the gas rectifying member, and the locking means of the cushion ring gas rectifying member airbags parallel beauty in this way assembled, because it can be attached to the base plate, having a gas rectifying member The assembling work of the airbag device can be easily performed, and therefore the working efficiency can be improved.

図1は本実施形態のエアバッグ装置を備えたステアリングホイールの正面図であり、図2は図1のI−I線に沿った横断面図である。
本実施形態に係るエアバッグ装置MRは、図1及び2に示すように車両のステアリングホイール50の中央部に組込まれ、装飾用部材40、エアバッグ10、及びエアバッグカバー16を備えている。
FIG. 1 is a front view of a steering wheel provided with the airbag device of the present embodiment, and FIG. 2 is a cross-sectional view taken along the line II of FIG.
As shown in FIGS. 1 and 2, the airbag apparatus MR according to the present embodiment is incorporated in the center portion of the steering wheel 50 of the vehicle, and includes a decorative member 40, the airbag 10, and the airbag cover 16.

図2は本実施形態のエアバッグ装置の横断面図である。このエアバッグ装置MRは、エアバッグ10とインフレーター30を収納するエアバッグカバー16と、折り畳まれてその外面が保持部材14で包み込まれると共に、その内面にガス整流部材12が配置されたエアバッグ10と、該エアバッグ10の中央部分の取付孔に挿入されたインフレーター30とから構成されている。
エアバッグ10は、図2に示すように、その延び出し長さを規制する筒状のテザーベルト11aを備え、乗員側(以下、乗員側を表側その反対側を裏側という。)方向に折り畳まれた状態でエアバッグカバー16内に収納されている。
FIG. 2 is a cross-sectional view of the airbag device of the present embodiment. The airbag apparatus MR includes an airbag cover 16 that houses the airbag 10 and the inflator 30, and an airbag 10 that is folded and encased in the holding member 14, and the gas rectifying member 12 is disposed on the inner surface thereof. And an inflator 30 inserted into a mounting hole in the central portion of the airbag 10.
As shown in FIG. 2, the airbag 10 includes a cylindrical tether belt 11 a that regulates the length of the airbag 10 and is folded in the direction of the occupant side (hereinafter, the occupant side is referred to as the front side and the opposite side is referred to as the back side). In the state, it is stored in the airbag cover 16.

前記保持部材14は、エアバッグ10の外周側面を押さえてエアバッグ側面方向の膨張展開を抑制する。エアバッグ10と保持部材14とは、エアバッグ10内に配置された後述するクッションリング22によりベースプレート24に固定されている。更に、これらを覆うエアバッグカバー16もベースプレート24に固定されている。   The holding member 14 presses the outer peripheral side surface of the airbag 10 and suppresses inflation and deployment in the airbag side surface direction. The airbag 10 and the holding member 14 are fixed to the base plate 24 by a cushion ring 22 (described later) disposed in the airbag 10. Further, an airbag cover 16 that covers these is also fixed to the base plate 24.

状テザーベルト11aの端部はエアバッグカバー16の表側に形成された凹部16aの背面側に位置して、前記装飾部材40の裏側に突出した取付ボルト40a及びナットにより連結部材20の表側と前記凹部16aの裏側間で挟持された状態で固定されている。 End of the tubular Jote Zaberuto 11a is located on the rear side of the recess 16a formed on the front side of the airbag cover 16, the front side of the connecting member 20 by the mounting bolt 40a and a nut protruding on the rear side of the decorative member 40 And is fixed in a state of being sandwiched between the back sides of the recess 16a.

図3は、図2に示すベースプレート24の裏側を示す斜視図である。ベースプレート24は、略円板状に形成されており、その中央部にインフレーターが嵌装可能な孔24hが形成されていると共に、4個のエアバッグカバー用取付片24aとベースプレート24をステアリングホイールに取り付けのための一対の取付片24bが前記円板面から切り起こし形成されている。このベースプレート24は、インフレーター30、エアバッグ10及び前述した装飾用部材40等を一体的に固定するためのものである。 FIG. 3 is a perspective view showing the back side of the base plate 24 shown in FIG. The base plate 24 is formed in a substantially disk-shaped, inflation terpolymers together with fitted possible hole 24h is formed in the central portion, the steering wheel four airbag cover attachment pieces 24a and the base plate 24 A pair of mounting pieces 24b for mounting are cut and raised from the disk surface. The base plate 24 is for integrally fixing the inflator 30, the airbag 10, the decorative member 40 described above, and the like.

前記インフレーター30は、所定強度の衝撃検知時にガスを吐出する。このインフレーター30のガス吐出孔30a(図2)が形成されたインフレーター上方部分はベースプレート24の孔24hを貫通し、かつ、ベースプレート24の取付孔24cを介して、後述のクッションリング22に固定される。   The inflator 30 discharges gas when an impact with a predetermined strength is detected. The inflator upper portion in which the gas discharge hole 30a (FIG. 2) of the inflator 30 is formed penetrates the hole 24h of the base plate 24 and is fixed to a cushion ring 22 to be described later via the mounting hole 24c of the base plate 24. .

図4は、図2に示す連結部材20の斜視図である。連結部材20は、取付ボルト40aが嵌合する孔20ahを備えた中央部20aと、その両側にこれと略直角に折曲形成された脚部20bと、更に脚部20bに略直角に折曲形成された取付足20cとからなる板状の金属片で構成されている。また、前記取付足20cには、後述するクッションリング22の取付孔22a及びベースプレート24の取付孔24cに対応した取付孔20eが形成されており、クッションリング22の取付孔22aに挿通したボルト22dによって共締めされる。   4 is a perspective view of the connecting member 20 shown in FIG. The connecting member 20 includes a central portion 20a having a hole 20ah into which the mounting bolt 40a is fitted, a leg portion 20b that is bent at a substantially right angle to both sides thereof, and a bent portion at a substantially right angle to the leg portion 20b. It is comprised by the plate-shaped metal piece which consists of the formed attachment leg 20c. The mounting foot 20c is formed with mounting holes 20e corresponding to mounting holes 22a of the cushion ring 22 and a mounting hole 24c of the base plate 24, which will be described later, by bolts 22d inserted into the mounting holes 22a of the cushion ring 22. It is tightened together.

図5Aは、図2に示すクッションリング22の正面図、図5Bはその一部を断面で示した側面図である。クッションリング22は、図5Aに示すように略矩形状をなし、その中央部にはインフレーター30の挿入孔22hが設けられ、且つこの挿入孔22hの周りの各隅部にはクッションリング22をベースプレート24に取り付けるためのボルト22dがその取付孔22aに挿通されている。また、クッションリング22の裏側は、ベースプレート24の表側にエアバッグ10を挟んだ状態で当接する当接面22bを構成すると共に、この当接面22bには、図5Bから明らかなように凹状部22cが形成されている。
この凹状部22cは、クッションリング22を連結部材20に連結したとき、この連結部材20の取付足20cの厚さに略等しい深さに形成されている。
5A is a front view of the cushion ring 22 shown in FIG. 2, and FIG. 5B is a side view showing a part of the cushion ring 22 in section. As shown in FIG. 5A, the cushion ring 22 has a substantially rectangular shape, and an insertion hole 22h of the inflator 30 is provided at the center thereof, and the cushion ring 22 is provided at each corner around the insertion hole 22h. A bolt 22d for attaching to 24 is inserted through the attachment hole 22a. Further, the back side of the cushion ring 22 constitutes a contact surface 22b that contacts the front side of the base plate 24 with the airbag 10 sandwiched therebetween, and the contact surface 22b has a concave portion as is apparent from FIG. 5B. 22c is formed.
The concave portion 22c is formed to a depth substantially equal to the thickness of the mounting foot 20c of the connecting member 20 when the cushion ring 22 is connected to the connecting member 20.

図6Aはエアバッグカバー16の斜視図である。エアバッグカバー16は合成樹脂製で、図示のように略椀状に形成されており、その中央部分に装飾用部材40を収容するための凹部16a及び取付ボルト40aの挿通孔16ahを備えている。 FIG. 6A is a perspective view of the airbag cover 16. The airbag cover 16 is made of synthetic resin and is formed in a substantially bowl shape as shown in the figure. The airbag cover 16 is provided with a recess 16a for accommodating the decorative member 40 and an insertion hole 16ah for the mounting bolt 40a at the center. .

図6Bはエアバッグカバーの裏面図である。図示のように、このエアバッグカバー16の裏面には、エアバッグ10の膨張展開に際して、連結部材20に固定された中央の凹部16aを残して割裂可能な溝状のティアライン(Ll〜L4、Lc)が形成されている。
エアバッグカバー16は、エアバッグ10の膨張時に各カバー片16bに分割され、かつ、それぞれが独立に開放できるようにベースプレート24のエアバッグカバー用取付片24aに例えばリベットで固定されている。
FIG. 6B is a rear view of the airbag cover. As shown in the figure, on the back surface of the airbag cover 16, when the airbag 10 is inflated and deployed, a groove-shaped tear line (Ll to L4, L1 to L4, which can be split leaving a central recess 16a fixed to the connecting member 20 is left. Lc) is formed.
The airbag cover 16 is divided into cover pieces 16b when the airbag 10 is inflated, and is fixed to the airbag cover mounting pieces 24a of the base plate 24 with, for example, rivets so that they can be opened independently.

図7Aは保持部材14の展開図である。この保持部材14は展開した状態ではガス整流部材12Lと同様に織布製で略正方形に形成されている。図示のように、その中央には、エアバッグ10を保持部材14で包んでエアバッカバー16に収納する際に、図2に示した取付ボルト40aに挿通するための挿入孔14hhが設けられ、略正方形の4辺の中心と対角線上の端辺に、前記クッションリング22の係止手段であるボルト22dが挿通する8個の孔14ah、14bhを有する取付片14a、14bが設けられている。
符号14hは、保持部材に設けられたミシン目からなる略円形の破断部である。この破断部14hは、エアバッグの展開初期時に破断を容易にするためのものであり、その大きさは、エアバッグカバー16の凹部16a及び装飾用部材40の直径に略等しいか、それより大きく形成されている。
FIG. 7A is a development view of the holding member 14. When the holding member 14 is unfolded, it is made of a woven fabric and is formed in a substantially square shape, like the gas rectifying member 12L. As shown, its center, when receiving the airbags cover 16 wraps air bag 10 by the holding member 14, the insertion hole 14hh for inserting the attachment bolt 40a shown in FIG. 2 is provided, Mounting pieces 14a and 14b having eight holes 14ah and 14bh through which bolts 22d as locking means of the cushion ring 22 are inserted are provided at the centers and diagonal ends of the four sides of the substantially square.
Reference numeral 14h is a substantially circular fracture portion formed of a perforation provided in the holding member. The broken portion 14h is for facilitating breakage at the initial stage of deployment of the airbag, and the size thereof is substantially equal to or larger than the diameters of the recess 16a of the airbag cover 16 and the decorative member 40. Is formed.

図7Bは、エアバッグ10を包み込む前の保持部材14と、後述するエアバッグ折り畳み機60で折り畳まれたエアバッグ10の裏側の斜視図である。この状態では、後述するようにエアバッグ10の周辺部10dに形成された4個の小孔10bに、クッションリング22のボルト22dが挿通されて係止されており、かつボルト22dに前記エアバッグ10の4個の小孔14ahを嵌め込み、その後、対角線上に位置する孔14bhを対向する2カ所のボルト22dに全て嵌め込むことにより、保持部材14によりエアバッグ10を包み込む。   FIG. 7B is a perspective view of the holding member 14 before wrapping the airbag 10 and the back side of the airbag 10 folded by the airbag folding machine 60 described later. In this state, as will be described later, bolts 22d of the cushion ring 22 are inserted and locked in four small holes 10b formed in the peripheral portion 10d of the airbag 10, and the airbag 22 is engaged with the bolt 22d. 10 small holes 14ah are fitted, and then the holes 14bh located diagonally are fitted into two opposing bolts 22d, whereby the airbag 10 is wrapped by the holding member 14.

図7Cは、保持部材14で包んだエアバッグ10の裏側の斜視図である。保持部材14の8個の取付片14a、14bをボルト22dに嵌め込むことにより、エアバッグの外周側面が押さえられて少なくともエアバッグの展開初期にインフレーターから発生するガスによるエアバッグ側面方向の膨張展開が抑制される。   FIG. 7C is a perspective view of the back side of the airbag 10 wrapped with the holding member 14. By fitting the eight mounting pieces 14a, 14b of the holding member 14 into the bolts 22d, the outer peripheral side surface of the airbag is pressed down, and at least the gas is generated from the inflator at the initial stage of the airbag deployment in the lateral direction of the airbag. Is suppressed.

図8は、本実施形態に係るエアバッグが備えるガス整流部材12Lの展開図である。このガス整流部材12Lは織布製でエアバッグと同じ材質で形成されている。ガス整流部材12Lは、リング形状のリング状部12rの外周を4等分した位置に、前記クッションリング22のボルト22dが貫通する孔14ah及びその外側近傍に4個の孔14ah′を有する取付部15dと、それに連なる櫛形状のガス整流片12kが設けられ、該リング部12rの中央部分に前記エアバッグ10のインフレーター取付口10ahと略同一の大きさの開口14′が形成されている。 FIG. 8 is a development view of the gas rectifying member 12L provided in the airbag according to the present embodiment. The gas rectifying member 12L is made of woven fabric and is made of the same material as the airbag. The gas rectifying member 12L has a mounting portion having a hole 14ah through which the bolt 22d of the cushion ring 22 passes and four holes 14ah 'in the vicinity of the outer periphery of the ring-shaped ring-shaped portion 12r. 15d and a comb-shaped gas rectifying piece 12k connected thereto are provided, and an opening 14 'having substantially the same size as the inflator attachment port 10ah of the airbag 10 is formed at the center of the ring- shaped portion 12r.

このガス整流部材12Lは、保持部材14をエアバッグ10に取付けた後にそれに重ねて取り付ける。即ち、エアバッグ10及び保持部材14を貫通して突出した前記クッションリング22のボルト22dに、前記保持部材14に重ねて前記ガス整流部材12Lの4個の取付部15dの小孔14ahを挿通して係止し、続いてガス整流片12kを折り返して前記外側の4個の小孔14ah′を前記ボルト22dに挿通して、前記ガス整流片12kをエアバッグ10の内周に沿うように伸展させて配置する。
次に、前記ガス整流部材12Lを取付けたエアバッグ10をエアバッグカバー16に収納し、続いて、連結部材20の一対の取付足20cの取付孔20eを前記突出したボルト22dのうち対向した2本にそれぞれ嵌め込み、その状態で更に、前記ボルト22dにベースプレート24の取付孔24を嵌めて、ベースプレート24の裏側から前記ボルト22dにナットを螺合し、連結部材20、クッションリング22、エアバッグ10,保持部材14及びガス整流部材12Lを共締めして一体に連結する。なお、保持部材14を用いない場合は、エアバッグ10上に重ねて前記ガス整流部材12Lをクッションリング22に止着する。
このようにしてガス整流部材12Lを、エアバッグ10の略中央に容易に配置することができ、配置されたガス整流部材12Lは、インフレーター30からのガスをエアバッグ10が展開初期に膨張する部分に導くことができる。
The gas rectifying member 12 </ b> L is attached to the holding member 14 after being attached to the airbag 10. That is, the bolts 22d of the cushion ring 22 protruding through the airbag 10 and the holding member 14 are inserted through the small holes 14ah of the four attachment portions 15d of the gas rectifying member 12L so as to overlap the holding member 14. Next, the gas rectifying piece 12k is folded back, the outer four small holes 14ah 'are inserted into the bolts 22d, and the gas rectifying piece 12k is extended along the inner periphery of the airbag 10. Let them be arranged.
Next, the airbag 10 to which the gas rectifying member 12L is attached is stored in the airbag cover 16, and then the mounting holes 20e of the pair of mounting legs 20c of the connecting member 20 are opposed to each other among the two protruding bolts 22d. fitted respectively to the further in this state, the bolts 22d are fitted to the mounting holes 24 c of the base plate 24, screwed nuts from the back side of the base plate 24 to the bolt 22d, the connecting member 20, the cushion ring 22, the air bag 10. The holding member 14 and the gas rectifying member 12L are fastened together and connected together. When the holding member 14 is not used, the gas rectifying member 12 </ b> L is fastened to the cushion ring 22 so as to overlap the airbag 10.
In this way, the gas rectifying member 12L can be easily disposed at substantially the center of the airbag 10, and the disposed gas rectifying member 12L is a portion where the airbag 10 inflates the gas from the inflator 30 at the initial stage of deployment. Can lead to.

図9は、第2実施形態に係るガス整流部材12Mの展開図である。この長方形のガス整流部材12Mは、その下部が前記インフレーター30のガスを整流する機能を有するガス整流片12kと、上部が該ガス整流片12kを前記クッションリング22のボルト22dに係止するための取付部15dとから構成され、その取付部15dの中央には前記ボルト22dを係合する孔14ahが、そして、該取付部15dの間には切り溝15eが形成されている。このガス整流片12kを折り畳んだエアバッグ内に配置したとき、ガス整流部材12Mの横方向幅は内周よりも長くなるように構成されている。 FIG. 9 is a development view of the gas rectifying member 12M according to the second embodiment. The rectangular gas rectifying member 12M has a gas rectifying piece 12k having a function of rectifying the gas of the inflator 30 at a lower portion thereof, and an upper portion for locking the gas rectifying piece 12k to a bolt 22d of the cushion ring 22. The mounting portion 15d is formed with a hole 14ah for engaging the bolt 22d in the center of the mounting portion 15d, and a cut groove 15e is formed between the mounting portions 15d . When placed in the air bag folded this gas rectifying member 12k, lateral width of the gas rectification member 12M is configured to be longer than the inner circumference.

このガス整流部材12Mを保持部材14で保持された折り畳んだ状態のエアバッグ10に取り付ける際には、前記クッションリング22のボルト22dに図9に示したガス整流部材12Mの取付部15dの孔14ahを左側から順番に係合して、前記切り溝15eの部分でガス整流片12kを相互に重ねてエアバッグ10の内周に沿うように伸展させて配置させる。
なお、図9で示すようにガス整流部材12Mの右端部が長く延びているが、該ガス整流部材12Mをエアバッグ内周に沿わせる際に、左端部のガス整流片12kと右端部のガス整流片12kとが重なる領域を備えていれば、その左右端部の長さは任意に決められる。
When the gas rectifying member 12M is attached to the folded airbag 10 held by the holding member 14, the bolt 22d of the cushion ring 22 is attached to the hole 14ah of the attaching portion 15d of the gas rectifying member 12M shown in FIG. Are sequentially engaged from the left side, and the gas rectifying pieces 12k are overlapped with each other at the cut groove 15e so as to extend along the inner periphery of the airbag 10.
As shown in FIG. 9, the right end of the gas rectifying member 12M extends long. When the gas rectifying member 12M is placed along the inner periphery of the airbag, the gas rectifying piece 12k at the left end and the gas at the right end are If it has the area | region with which the rectification | straightening piece 12k overlaps, the length of the right-and-left end part will be decided arbitrarily.

図10は、本発明の第3実施形態である他のガス整流部材12Nの展開図である。このガス整流部材12Nは同一の形状の独立したガス整流部材4枚で構成され、その下部が前記インフレーター30のガスを整流する機能を有するガス整流片12kと、上部が該ガス整流片12kを前記クッションリング22のボルト22dに取り付けるための取付部15dとなっている。その取付部15dの中央には前記ボルト22dを挿通する孔14ahが形成されている。   FIG. 10 is a development view of another gas rectifying member 12N according to the third embodiment of the present invention. The gas rectifying member 12N is composed of four independent gas rectifying members having the same shape, the lower part of which has a function of rectifying the gas of the inflator 30, and the upper part of the gas rectifying part 12k. An attachment portion 15d for attaching to the bolt 22d of the cushion ring 22 is provided. A hole 14ah through which the bolt 22d is inserted is formed at the center of the mounting portion 15d.

このガス整流部材12Nを保持部材14で保持されたエアバッグ10に取り付ける際には、前記クッションリング22のボルト22dに1枚ずつ係合して、1枚ずつエアバッグ10の内周に沿うように伸展させて配置する。このガス整流部材12Nにおいても、それぞれを折り畳んだエアバッグ10内に配置したとき、互いに重なるようにその周方向長さがエアバッグ10の内周よりも長くなるように形成されている。   When attaching the gas rectifying member 12N to the airbag 10 held by the holding member 14, the gas rectifying member 12N is engaged with the bolts 22d of the cushion ring 22 one by one so as to follow the inner periphery of the airbag 10 one by one. Extend to position. The gas rectifying member 12N is also formed so that its circumferential length is longer than the inner circumference of the airbag 10 so as to overlap each other when the gas rectifying members 12N are arranged in the folded airbag 10.

図11は、本発明の第4実施形態であるガス整流部材14Nの展開図である。
このガス整流部材14Nは保持部材14と一体に形成されている。このガス整流部材14Nは、前記各実施形態と同様に織布製で略正方形の形状の4辺の中央に櫛形状のガス整流片12kが設けられており、その中央には円形の取付ボルト挿入孔14hhが設けられ、略正方形の4辺の中心と対角線上の端辺に前記クッションリング22のボルト22dに係合する8個の孔14ah、14bhが設けられている。
FIG. 11 is a development view of the gas rectifying member 14N according to the fourth embodiment of the present invention.
The gas rectifying member 14N is formed integrally with the holding member 14. The gas rectifying member 14N is made of a woven cloth and is provided with a comb-shaped gas rectifying piece 12k at the center of four sides of a substantially square shape, and a circular mounting bolt is inserted at the center. Holes 14hh are provided, and eight holes 14ah and 14bh that engage with the bolts 22d of the cushion ring 22 are provided at the center and diagonal ends of four sides of a substantially square.

前記保持部材14と一体のガス整流部材14Nの前記取付ボルト挿入孔14hhは、前記保持部材14の取付ボルト挿入孔14hhと同様に、取付ボルト40aに挿通するためのものである。前記ガス整流片12kの横幅は折り畳まれたエアバッグ10の内周の4分の1以上の幅であって、その奥行きは孔14ahから該折り畳まれたエアバッグ10の高さより短く形成されている。   The mounting bolt insertion hole 14hh of the gas rectifying member 14N integrated with the holding member 14 is for inserting the mounting bolt 40a in the same manner as the mounting bolt insertion hole 14hh of the holding member 14. The lateral width of the gas rectifying piece 12k is at least a quarter of the inner circumference of the folded airbag 10, and the depth is formed shorter than the height of the folded airbag 10 from the hole 14ah. .

符号14hは、図7Aに示した保持部材に設けられた略円形の破断部と同様のミシン目からなる破断部であって、エアバッグの展開初期時に破断を容易にするためのものであり、その大きさは、エアバッグカバー16の凹部16a及び装飾用部材40の直径が通過可能な大きさである。前記略円形の破断部のミシン目は切り溝が長くつなぎ目が短く、そのつなぎ目はその略円形上の4等分された位置に形成されている。   Reference numeral 14h is a rupture portion composed of a perforation similar to the substantially circular rupture portion provided in the holding member shown in FIG. 7A, for facilitating the rupture at the initial deployment of the airbag, The size of the air bag cover 16 is such that the recess 16a of the airbag cover 16 and the diameter of the decorative member 40 can pass through. The perforated portion of the substantially circular broken portion has a long cut groove and a short joint, and the joint is formed at a position equally divided into four on the substantially circular shape.

図12は、エアバッグ10を包む前の保持部材14と一体のガス整流部材14Nと、後述するエアバッグ折り畳み機60で折り畳まれたエアバッグ10の裏面図である。
図12に示すように、エアバッグ10は折り畳まれて保持部材14上に置かれており、続いて、保持部材14の周縁部を持ち上げ、前記エアバッグ10のインフレーター取付口10ahの周辺部10dから、突出して対向する位置にある2個のクッションリング22のボルト22dに、それと対向する位置にある櫛形状のガス整流片12kを折り返してその孔14ahを嵌め込み、櫛形状のガス整流片12kをエアバッグ10の内周に沿うように伸展させ、同様に、他の対向する位置にあるボルト22dに他の2個の孔14ahを係合して、同様に、櫛形状のガス整流片12kをエアバッグ10の内周に沿うように伸展させる。その後に対角線上に位置する孔14bhを前記対向する位置にあるボルト22dに全て嵌め込む。その嵌め込みの際に、図11に示すように、破断部14hのミシン目のつなぎ目が前記4辺の中心にある孔14ahを結ぶ線上にあるので、嵌め込み時の引張力がそのつなぎ目に作用するため、4箇所の嵌め込み状態が均衡に保たれる。
12, the gas rectifying member 14N integrated with previous holding member 14 surrounding the air bag 10 is a rear view of the air bag 10 folded in the airbag folding machine 60 described later.
As shown in FIG. 12, the airbag 10 is folded and placed on the holding member 14 , and then the peripheral portion of the holding member 14 is lifted up from the peripheral portion 10 d of the inflator attachment port 10 ah of the airbag 10. Then, the comb-shaped gas rectifying piece 12k is folded back to the bolts 22d of the two cushion rings 22 that protrude and face each other, and the holes 14ah are fitted into the bolts 22d. Similarly, the other two holes 14ah are engaged with the bolts 22d located at the other opposing positions so that the comb-shaped gas rectifying piece 12k is air-aired. Extend along the inner periphery of the bag 10. Thereafter, all the holes 14bh located on the diagonal line are fitted into the bolts 22d at the opposite positions. At the time of fitting, as shown in FIG. 11, since the joint of the perforated portion 14h is on the line connecting the holes 14ah at the center of the four sides, the tensile force at the time of fitting acts on the joint. The four fitting states are kept in balance.

図13は、保持部材14と一体のガス整流部材14Nで覆ったエアバッグ10の裏面側斜視図である。エアバッグ10の内周は櫛形状のガス整流片12kがその内周に沿うように広げられて配置されている。前記櫛形状のガス整流片12kの横幅は、折り畳まれたエアバッグ10の内周の4分の1以上の長さを有するので、このガス整流片12kの一部が二重に重なった状態でエアバッグ10の内周に沿うように伸展させる。既述したようにガス整流部材14Nの長さは、エアバッグの展開初期に膨張する部分の近傍に届く長さが必要であり、折り畳まれた筒状テザーベルト11aの先端に届く長さであることが好ましい。 Figure 13 is a rear side perspective view of the airbag 10 covered with the gas rectification member 14N integrated with the holding member 14. A comb-shaped gas rectifying piece 12k is arranged on the inner periphery of the airbag 10 so as to extend along the inner periphery. Since the lateral width of the comb-shaped gas rectifying piece 12k has a length that is at least a quarter of the inner circumference of the folded airbag 10, a part of the gas rectifying piece 12k is doubled. Extend along the inner periphery of the airbag 10. As described above, the length of the gas rectifying member 14N needs to reach the vicinity of the portion that inflates at the initial stage of deployment of the airbag, and is the length that reaches the tip of the folded cylindrical tether belt 11a. Is preferred.

上記第1乃至第4の実施形態のガス整流部材では、ディスクタイプのインフレーターを用いたホーンスイッチ付きエアバッグ装置MRのガス整流部材を説明したが、シリンダータイプのインフレーターを用いたエアバッグ装置のガス整流部材に前記ガス整流部材12(12L、12M、12N、及び14N)を用いても同様の効果が得られる。 In the gas rectifying member of the first to fourth embodiments, the gas rectifying member of the airbag device MR with a horn switch using a disk type inflator has been described. However, the gas of the airbag device using the cylinder type inflator The same effect can be obtained by using the gas rectifying member 12 (12L, 12M, 12N , and 14N) as the rectifying member.

図14は、膨張状態のエアバッグ10内部を模式的に示す透視斜視図である。尚、簡易化のため筒状テザーベルト11a内の装飾部材40、この装飾部材40と結合されたインフレーター30等は図示していない。エアバッグ10のインフレーター取付口10ah周縁には、インフレーターの発生する熱や衝撃的な圧力からエアバッグを保護する保護部材12cが周辺部10dに重ねられて縫合されている。この保護部材12cの上にガスの流出方向を整流するガス整流部材12(ここではガス整流部材12M)が保護部材12cの周りでこれを包むように伸張している。 FIG. 14 is a perspective view schematically showing the inside of the airbag 10 in an inflated state. Incidentally, the decorative member 40 in the tubular tether belt 11a for simplification, the inflator 30 or the like which is coupled with the ornamental member 40 is not shown. A protective member 12c that protects the airbag from the heat generated by the inflator and shock pressure is overlapped with the peripheral portion 10d and stitched to the periphery of the inflator attachment port 10ah of the airbag 10. A gas rectifying member 12 (in this case, a gas rectifying member 12M) that rectifies the outflow direction of gas extends on the protective member 12c so as to surround the protective member 12c.

エアバッグ10は、2枚の略円形状の布の外周縁部同士を縫い合わせて扁平な球状(楕円体状)に展開可能な袋状に形成されている。エアバッグ10の表側の略中央部には、エアバッグカバー16の凹部16aが挿入される円形状の切欠部10h及び筒状テザーベルト11aが、また、その裏側の略中央部には、インフレーターと連通して発生するガスをエアバッグ内部へ導入するためのインフレーター取付口10ahが形成されると共に、そのインフレーター取付口10ahの周辺部10dにクッションリング22のボルト22d(図5B参照)を通すための4個の小孔10bが形成されている。
なお、符号11ahは、筒状テザーベルト取付孔である。
The airbag 10 is formed in a bag shape that can be developed into a flat spherical shape (ellipsoidal shape) by sewing the outer peripheral edge portions of two substantially circular cloths together. A circular notch 10h into which the concave portion 16a of the airbag cover 16 is inserted and a cylindrical tether belt 11a are connected to the front center of the airbag 10 and the inflator is connected to the rear center of the airbag 10. An inflator mounting port 10ah for introducing the generated gas into the airbag is formed, and 4 for passing the bolt 22d (see FIG. 5B) of the cushion ring 22 through the peripheral portion 10d of the inflator mounting port 10ah. Small holes 10b are formed.
Reference numeral 11ah denotes a cylindrical tether belt attachment hole.

次に、エアバッグ10を折り畳み機を用いて折り畳む方法の1例について説明する。
図15A乃至15Hは、エアバッグ折り畳み機を用いてエアバッグを折り畳む操作手順を示す概念図であり、その概念図に従ってエアバッグの折り畳み方法を説明する。
Next, an example of a method for folding the airbag 10 using a folding machine will be described.
15A to 15H are conceptual diagrams showing an operation procedure for folding an airbag using an airbag folding machine, and a method for folding an airbag will be described according to the conceptual diagram.

エアバッグ折り畳み機60は、図15Aに示すように、円柱状の筒状テザーベルト11aを支持する支持具62、及びそれと同軸でかつ外側にエアバッグ10を収納する外筒シリンダ63を有するテーブル61と、前記支持具62の垂直上方位置に該支持具62と等しい外径を有し、筒状テザーベルト11aの上端を支持具62との間に挟持する円柱状の挟持具64(図15C参照)を支持する支持部(図示せず)とから成っている。前記支持具62の外径はクッションリング22の挿入孔22hの内径より小さいので、後述するように前記支持具62が前記挿入孔22hを挿通して上昇することができる。 As shown in FIG. 15A, the airbag folding machine 60 includes a table 62 having a support 62 that supports a cylindrical tubular tether belt 11a, and an outer cylinder 63 that is coaxial with the support 62 and accommodates the airbag 10 outside. A cylindrical holding tool 64 (see FIG. 15C) having an outer diameter equal to that of the support tool 62 and vertically holding the upper end of the cylindrical tether belt 11 a between the support tool 62 and the support tool 62. It comprises a supporting part (not shown) for supporting. Since the outer diameter of the support tool 62 is smaller than the inner diameter of the insertion hole 22h of the cushion ring 22, the support tool 62 can rise through the insertion hole 22h as will be described later.

エアバッグ10は、エアバッグ10のインフレータ取付孔10ahの周辺部10d(図14参照)に形成された4個の小孔10bに、図15Aに示すようにクッションリング22のボルト22dが挿通されており、そのボルト22dを前記テーブル61の支持具62の外周上端面に設けられた4個の孔に係合して固定し、前記挿入孔22hを挿通して上昇した支持具62の頭部が筒状テザーベルト11aの筒中に挿入された状態で、その外方にはエアバッグ10が平らな状態でテーブル61上に置かれる。 Airbag 10, the four small holes 10b formed in the inflator over the attachment hole 10ah of the peripheral portion 10d of the airbag 10 (see FIG. 14), the bolt 22d of the cushion ring 22 is inserted as shown in FIG. 15A The bolt 22d is engaged with and fixed to four holes provided on the outer peripheral upper end surface of the support member 62 of the table 61, and the head of the support member 62 is lifted through the insertion hole 22h. Is inserted into the cylinder of the cylindrical tether belt 11a, and the airbag 10 is placed on the table 61 in a flat state outside the cylinder tether belt 11a.

図15Bに示すように、図15Aに示した支持具62の頭部がクッションリング22の挿入孔22hを挿通して筒状テザーベルト11aの筒中に挿入された状態から、さらに該筒状テザーベルト11aの下端を押し上げると、エアバッグ10も追随して押し上げられる。   As shown in FIG. 15B, from the state in which the head of the support 62 shown in FIG. 15A is inserted into the cylinder of the cylindrical tether belt 11a through the insertion hole 22h of the cushion ring 22, the cylindrical tether belt 11a When the lower end is pushed up, the airbag 10 is also pushed up.

ここで、前記筒状テザーベルト11aの長さは、エアバッグ10の長さの略半分に等しいので、支持具62は、テーブル61から該筒状テザーベルト11aの長さの最大限約3倍の高さの位置まで上昇してその位置で停止して、この支持具62の先端部にある凸部に前記筒状テザーベルト取付孔11ahを手作業で挿通して、筒状テザーベルト11aを位置決めする。   Here, since the length of the cylindrical tether belt 11a is substantially equal to half of the length of the airbag 10, the support tool 62 has a height of about three times the maximum length of the cylindrical tether belt 11a from the table 61. The cylindrical tether belt 11a is positioned by being manually inserted through the convex portion at the distal end portion of the support 62 through the cylindrical tether belt mounting hole 11ah.

図15Cに示すように、挟持具64が下降して前記位置合わせされた筒状テザーベルト11aを該支持具62及び挟持具64で挟持し、その挟持状態を維持して支持具及び挟持具62、64が下降する。図15Dに示すように、支持具62及び挟持具64が筒状テザーベルト11aの半分の長さの位置まで下降したところで動作を停止して、図15Dに示すように、手作業で外側のエアバッグ10を上方向に引っ張り上げる。これにより、筒状テザーベルト11aがその略中間の位置で折り畳まれる。 As shown in FIG. 15C, the holding tool 64 descends and the aligned cylindrical tether belt 11a is held between the support tool 62 and the holding tool 64, and the holding condition is maintained, and the support tool and the holding tool 62, 64 goes down. As shown in FIG. 15D, the operation is stopped when the support tool 62 and the holding tool 64 are lowered to the half length of the cylindrical tether belt 11a, and the outer airbag is manually operated as shown in FIG. 15D. Pull 10 upward. Thereby, the cylindrical tether belt 11a is folded at a substantially intermediate position.

図15Eに示すように、テーブル61から外筒シリンダ63が前述の筒状テザーベルト11aの上端の挟持位置まで上昇して、エアバッグ10を外筒シリンダ63と支持具62との間に収納する。図15Fに示すように、その位置で左右対称半円形の穴を有する2枚のプレート65が外筒シリンダ63の上端を左右方向から摺動して挟持具64の下端部に設けられた嵌合溝(図示せず)に嵌合する。 As shown in FIG. 15E, the outer cylinder 63 rises from the table 61 to the clamping position at the upper end of the cylindrical tether belt 11 a described above, and the airbag 10 is stored between the outer cylinder 63 and the support 62. As shown in FIG. 15 F, 2 plates 65 having left right symmetrical semicircular holes are provided to slide the upper end of the outer tube cylinder 63 from the left and right direction to the lower end of the pincer 64 in its position Is fitted into a fitting groove (not shown).

図15Gに示すように、この状態で支持具62、挟持具64及び外筒シリンダ63を同時に下降することにより、折り畳まれた筒状テザーベルト11aは自身が重なった状態でエアバッグ10と一緒に圧縮されながら折り畳まれる。エアバッグ10の圧縮が終了し(図15H参照)、前記プレート65を取り除いた後に、支持具62、挟持具64及び外筒シリンダ63が同時に元の位置に戻りエアバッグ10の折り畳み作業を終了する。   As shown in FIG. 15G, the folded cylindrical tether belt 11a is compressed together with the airbag 10 in a state where the folded cylindrical tether belt 11a is overlapped by simultaneously lowering the support tool 62, the clamping tool 64, and the outer cylinder cylinder 63 in this state. It is folded while being. After the compression of the airbag 10 is completed (see FIG. 15H) and the plate 65 is removed, the support tool 62, the clamping tool 64, and the outer cylinder 63 are simultaneously returned to their original positions, and the folding operation of the airbag 10 is completed. .

なお、エアバッグ10の全長を伸ばした状態において、筒状テザーベルト11aの長さをエアバッグ10の長さの略半分に等しいものとして、エアバッグ10の長さを説明したが、本発明はこの長さに限定されるものではなく、前記支持具62の停止する位置、支持具62及び挟持具64が下降して停止する位置は、エアバッグ10の長さに応じて決定される。   The length of the airbag 10 has been described assuming that the length of the cylindrical tether belt 11a is substantially equal to the half of the length of the airbag 10 in the state in which the entire length of the airbag 10 is extended. The position where the support tool 62 stops and the position where the support tool 62 and the holding tool 64 descend and stop are determined according to the length of the airbag 10.

エアバッグ装置のステアリングホイールに対する装着状態を示す正面図である。It is a front view which shows the mounting state with respect to the steering wheel of an airbag apparatus. 図1の線I−Iでみたときの横断面図である。It is a cross-sectional view when it sees on the line II of FIG. ベースプレートの裏側面を示す斜視図である。It is a perspective view which shows the back side surface of a base plate. 連結部材の斜視図である。It is a perspective view of a connection member. 図5Aはクッションリングの正面図、図5Bはその一部を断面で示した側面図である。FIG. 5A is a front view of the cushion ring, and FIG. 5B is a side view showing a part thereof in section. 図6Aはエアバッグカバー16の斜視図、図6Bは裏面図である。6A is a perspective view of the airbag cover 16, and FIG. 6B is a rear view. 図7Aは保持部材の展開図、図7Bはエアバッグを包込む前の保持部材と折り畳まれたエアバッグの裏側の斜視図、図7Cは保持部材でエアバッグを包み込んだ状態を示す裏側の斜視図である。7A is a developed view of the holding member, FIG. 7B is the back perspective view of the folded airbag and the holding member before Komu seen wrapping the airbag, Fig. 7C is a back side showing a state in which wrapped the air bag holding member It is a perspective view. 第1実施形態であるガス整流部材の展開図である。It is an expanded view of the gas straightening member which is 1st Embodiment. 第2実施形態のガス整流部材の展開図である。It is an expanded view of the gas straightening member of 2nd Embodiment. 第3実施形態のガス整流部材の展開図である。It is an expanded view of the gas straightening member of 3rd Embodiment. 第4実施形態のガス整流部材の展開図である。It is an expanded view of the gas straightening member of 4th Embodiment. エアバッグを覆う前の第4実施形態のガス整流部材と折り畳まれたエアバッグの裏面図である。It is a reverse view of the airbag which was folded with the gas rectification | straightening member of 4th Embodiment before covering an airbag. 第4実施形態のガス整流部材で覆ったエアバッグの裏面側斜視図である。It is a back surface side perspective view of the airbag covered with the gas straightening member of 4th Embodiment. 膨張状態のエアバッグ内部を示す透視斜視図である。It is a see-through | perspective perspective view which shows the inside of the airbag of an inflated state. エアバッグ折り畳み機を用いてエアバッグを折り畳む操作手順を示す概念図である。It is a conceptual diagram which shows the operation procedure which folds an airbag using an airbag folding machine. 従来技術のエアバッグ装置の断面図である。It is sectional drawing of the airbag apparatus of a prior art. 同エアバッグ装置の分解斜視図である。It is a disassembled perspective view of the airbag apparatus.

10・・・エアバッグ、11a・・・筒状テザーベルト、12(12L、12M、12N、14N)・・・ガス整流部材、14・・・保持部材、16・・・エアバッグカバー、20・・・連結部材、22・・・クッションリング、24・・・ベースプレート、30・・・インフレーター。
DESCRIPTION OF SYMBOLS 10 ... Airbag, 11a ... Cylindrical tether belt, 12 (12L, 12M, 12N, 14N) ... Gas rectification member, 14 ... Holding member, 16 ... Airbag cover, 20 ... -Connecting member, 22 ... cushion ring, 24 ... base plate, 30 ... inflator.

Claims (3)

インフレーターと、中央にインフレーター取付口を有し前記インフレーターからのガス流で膨張可能に中央に空間を形成して折り畳んだエアバッグと、前記取付口の近傍で前記エアバッグの内側に配置され前記エアバッグに係止する係止手段を備えたクッションリングと、前記クッションリングに対向して前記エアバッグ外側に配置されたベースプレートと、前記インフレーターからのガスをエアバッグが展開初期に膨張する乗員側部分に案内する織布製のガス整流部材を備えたエアバッグ装置であって、
前記ガス整流部材は、中央部分にエアバッグの前記取付口と略同一の大きさの開口が形成されたリング状部と、前記リング状部の外周に間隔を隔てて配置され前記クッションリングの係止手段に係止される取付部と、前記取付部の外側に一体に形成され、前記取付部よりも幅広の互いに間隔を隔てたガス整流片を有し、かつ前記ガス整流片を前記折り畳んだエアバッグの内周面に沿って乗員側に向かって伸展させたことを特徴とするエアバッグ装置。
An inflator, an inflator attachment port in the center, an airbag that is folded by forming a space in the center so as to be inflatable by a gas flow from the inflator, and the air bag disposed inside the airbag near the attachment port A cushion ring provided with a locking means for locking to the bag, a base plate disposed on the outer side of the airbag so as to face the cushion ring, and an occupant side portion in which the airbag inflates gas from the inflator at the initial stage of deployment An air bag device provided with a gas rectifying member made of woven fabric to guide to
The gas rectifying member includes a ring-shaped portion having an opening having a size substantially the same as that of the attachment port of the airbag at a central portion, and an outer periphery of the ring-shaped portion that is spaced apart from the engagement of the cushion ring. A mounting portion that is locked to the stopping means; and a gas rectifying piece that is integrally formed outside the mounting portion and that is wider than the mounting portion and spaced from each other ; and the gas rectifying piece is folded. An airbag device that is extended toward an occupant side along an inner peripheral surface of the airbag.
インフレーターと、中央にインフレーター取付口を有し前記インフレーターからのガス流で膨張可能に中央に空間を形成して折り畳んだエアバッグと、前記取付口の近傍で前記エアバッグの内側に配置され前記エアバッグに係止する係止手段を備えたクッションリングと、前記クッションリングに対向して前記エアバッグ外側に配置されたベースプレートと、前記インフレーターからのガスをエアバッグが展開初期に膨張する乗員側部分に案内する織布製のガス整流部材を備えたエアバッグ装置であって、
前記ガス整流部材は、前記クッションリングの係止手段に係止される複数の取付部と、
前記複数の取付部と一体に形成されガスを整流する機能を有する長方形状のガス整流片を有し、
前記取付部間に前記ガス整流片の横幅に対して縦方向に延在する切り溝が形成され、ガス整流片の横幅は、折り畳んだエアバッグの内側に形成される孔の周面である内周面の長さよりも長く形成されており、かつ前記ガス整流片を前記折り畳んだエアバッグの内周面に沿って乗員側に向かって伸展させたことを特徴とするエアバッグ装置。
An inflator, an inflator attachment port in the center, an airbag that is folded by forming a space in the center so as to be inflatable by a gas flow from the inflator, and the air bag disposed inside the airbag near the attachment port A cushion ring provided with a locking means for locking to the bag, a base plate disposed on the outer side of the airbag so as to face the cushion ring, and an occupant side portion in which the airbag inflates gas from the inflator at the initial stage of deployment An air bag device provided with a gas rectifying member made of woven fabric to guide to
The gas rectifying member includes a plurality of attachment portions that are locked to the locking means of the cushion ring;
A rectangular gas rectifying piece formed integrally with the plurality of attachment portions and having a function of rectifying gas,
A kerf extending in the vertical direction with respect to the lateral width of the gas rectifying piece is formed between the mounting portions, and the lateral width of the gas rectifying piece is a peripheral surface of a hole formed inside the folded airbag. An airbag device, wherein the airbag device is formed longer than a length of a peripheral surface, and the gas rectifying piece is extended toward an occupant side along an inner peripheral surface of the folded airbag.
インフレーターと、中央にインフレーター取付口を有し前記インフレーターからのガス流で膨張可能に中央に空間を形成して折り畳んだエアバッグと、前記取付口の近傍で前記エアバッグの内側に配置され前記エアバッグに係止する係止手段を備えたクッションリングと、前記クッションリングに対向して前記エアバッグ外側に配置されたベースプレートと、前記インフレーターからのガスをエアバッグが展開初期に膨張する乗員側部分に案内する織布製のガス整流部材を備えたエアバッグ装置であって、
前記ガス整流部材は、中央部にエアバッグの展開初期時に破断を容易にする破断部が形成されたエアバッグの保持部材と、前記保持部材の外側に一体に形成された前記クッションリングの係止手段に係止する取付部及び、前記保持部材の外側で前記取付部と異なる位置に一体に形成されたガス整流片を有し、かつ前記保持部材で折り畳んだエアバッグを包み、前記ガス整流片を前記折り畳んだエアバッグの内周面に沿って乗員側に向かって伸展させたことを特徴とするエアバッグ装置。
An inflator, an inflator attachment port in the center, an airbag that is folded by forming a space in the center so as to be inflatable by a gas flow from the inflator, and the air bag disposed inside the airbag near the attachment port A cushion ring provided with a locking means for locking to the bag, a base plate disposed on the outer side of the airbag so as to face the cushion ring, and an occupant side portion in which the airbag inflates gas from the inflator at the initial stage of deployment An air bag device provided with a gas rectifying member made of woven fabric to guide to
The gas rectifying member includes an airbag holding member in which a rupture portion for facilitating rupture at the initial stage of deployment of the airbag is formed at the center portion, and a cushion ring integrally formed outside the holding member. A gas rectifying piece that includes an attaching portion that is locked to the means, a gas rectifying piece integrally formed at a position different from the attaching portion outside the holding member, and that wraps an airbag folded by the holding member; An airbag device characterized in that the airbag device is extended toward the occupant side along the inner peripheral surface of the folded airbag.
JP2005260667A 2005-07-07 2005-09-08 Airbag device Expired - Fee Related JP5158663B2 (en)

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US11/994,656 US7878533B2 (en) 2005-07-07 2006-05-09 Airbag device
CN2009102259109A CN101698402B (en) 2005-07-07 2006-05-09 Safe airbag device
EP06746128A EP1908643B1 (en) 2005-07-07 2006-05-09 Air bag device
CN2013100903314A CN103171511A (en) 2005-07-07 2006-05-09 Air bag device
KR1020087000397A KR101359432B1 (en) 2005-07-07 2006-05-09 Airbag device
CN2009102259113A CN101698403B (en) 2005-07-07 2006-05-09 Safe airbag device
PCT/JP2006/309297 WO2007007461A1 (en) 2005-07-07 2006-05-09 Air bag device
EP10172505.9A EP2241483B1 (en) 2005-07-07 2006-05-09 Airbag device
AU2006267780A AU2006267780B2 (en) 2005-07-07 2006-05-09 Air bag device
CN2006800247347A CN101218130B (en) 2005-07-07 2006-05-09 Airbag device
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