JP2992129B2 - Woven airbag - Google Patents
Woven airbagInfo
- Publication number
- JP2992129B2 JP2992129B2 JP3154493A JP15449391A JP2992129B2 JP 2992129 B2 JP2992129 B2 JP 2992129B2 JP 3154493 A JP3154493 A JP 3154493A JP 15449391 A JP15449391 A JP 15449391A JP 2992129 B2 JP2992129 B2 JP 2992129B2
- Authority
- JP
- Japan
- Prior art keywords
- airbag
- woven
- density
- fabric
- hollow portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Air Bags (AREA)
- Woven Fabrics (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エアバッグに関する。
より詳しくは自動車の乗員保護用に用いられるエアバッ
グにおいて、信頼性の高い優れた耐圧強度をもつ袋織エ
アバッグに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag.
More specifically, the present invention relates to an airbag used for protecting an occupant of an automobile, which has high reliability and excellent pressure resistance.
【０００２】[0002]
【従来の技術】近年、自動車の衝突事故に伴う人身障害
防止のための乗員保護用安全装置としてエアバッグシス
テムが実用化され、搭載されつつある。エアバッグシス
テムは自動車の衝突を検知するセンサー、センサーから
の信号に基づいてエアバッグを膨脹させるガス発生器
（インフレーター）および衝突時にガスによって膨脹し
て乗員の衝撃を吸収するエアバッグから構成されてい
る。2. Description of the Related Art In recent years, airbag systems have been put into practical use and are being installed as occupant protection safety devices for preventing personal injury due to a car collision accident. The airbag system includes a sensor for detecting a collision of an automobile, a gas generator (inflator) for inflating the airbag based on a signal from the sensor, and an airbag for inflating with a gas during a collision to absorb a shock of an occupant. I have.
【０００３】したがって、エアバッグはガスを収容する
中空部を有すると共に、ガス発生器を取付けるための取
付口および膨脹後のエアバッグからガスを排出させるた
めの機構（例えばベントホール、エアバッグの基布の通
気性を利用して排出してもよい）が設けられている。ま
た、エアバッグの基布の通気性の抑制および各部処の縫
製部分の補強のためにエアバッグの基布にはコーティン
グが施されている。[0003] Therefore, the airbag has a hollow portion for accommodating gas, and has a mounting port for mounting a gas generator and a mechanism for discharging gas from the inflated airbag (for example, a vent hole, a base of the airbag). (It may be discharged by utilizing the air permeability of the cloth). In addition, a coating is applied to the base fabric of the airbag in order to suppress the air permeability of the base fabric of the airbag and to reinforce the sewn portion in each part.
【０００４】かかるエアバッグは、従来ナイロン６６マ
ルチフィラメントなどの高強度合成繊維糸を用いて織物
を作り、ドライバーシート用エアバッグの場合、この織
物から２枚のほぼ円形の布帛片を裁断し、２枚の布帛片
の周辺部を縫製し接合することによって形成され、その
後ガス発生器取付口およびガス排出機構が設けられてい
る。なお縫製に先立って、通常、布帛に樹脂、ゴムなど
の被覆材がコーティングされている。In such an airbag, a woven fabric is conventionally made using a high-strength synthetic fiber yarn such as nylon 66 multifilament. In the case of an airbag for a driver seat, two substantially circular pieces of fabric are cut from the woven fabric. It is formed by sewing and joining the peripheral portions of two pieces of fabric, and thereafter, a gas generator mounting port and a gas discharge mechanism are provided. Prior to sewing, the cloth is usually coated with a covering material such as resin or rubber.
【０００５】この周辺部の縫製工程は、多くの労力と時
間を必要とし、エアバッグの製造費が嵩む原因となって
いる。そこで、周辺部の縫製工程を省略することを目的
として周辺部を一重組織によって１枚の織物とした袋織
エアバッグも提案されている（特開平１−２５４４４６
号公報）。しかし、この袋織エアバッグは、耐圧強度の
面で課題があった。[0005] The sewing process of the peripheral portion requires a lot of labor and time, and causes an increase in the manufacturing cost of the airbag. In view of this, a bag-woven airbag in which the peripheral portion is made of a single woven fabric with a single structure has been proposed for the purpose of omitting the sewing step of the peripheral portion (Japanese Patent Laid-Open No. Hei 1-254446).
No.). However, this bag-woven airbag has a problem in terms of pressure resistance.
【０００６】従来公知の袋織エアバッグの構造および問
題点を図２を参照して説明する。図２（Ａ）は袋織エア
バッグの平面図、図２（Ｂ）はその断面図である。図２
（Ａ）および図２（Ｂ）に示すように従来公知の袋織エ
アバッグは、上側織物１３（使用時にドライバー側）と
下側織物１２（使用時にハンドル側）から成る中空部の
周辺部１４を一重組織により一枚の織物としてジャカー
ド機構を装備した織機を用いて製織することによって中
空部１６が形成されている。下側織物の中央にはガス発
生器取付口１５が設けられる。[0006] The structure and problems of a conventionally known woven airbag will be described with reference to FIG. FIG. 2A is a plan view of a woven airbag, and FIG. 2B is a cross-sectional view thereof. FIG.
As shown in FIG. 2A and FIG. 2B, a conventionally known woven airbag includes a hollow peripheral portion 14 composed of an upper fabric 13 (a driver side when used) and a lower fabric 12 (a handle side when used). The hollow portion 16 is formed by weaving a single piece of fabric using a weaving machine equipped with a jacquard mechanism with a single structure. A gas generator mounting port 15 is provided at the center of the lower fabric.
【０００７】中空部の内側はほぼ円形に作られている。
すなわち、図２（Ａ）にＤｗで示す経糸方向の直径、Ｄ
ｆで示す緯糸方向の直径、および互いに直交する経糸お
よび緯糸となす角度が４５°の２本のバイヤス方向の直
径Ｄｂ1 ，Ｄｂ2 の値はほぼ等しく形成されている。そ
して、ガス発生器から発生する熱ガスにより膨脹した場
合に、袋織エアバッグの耐圧強度は、周辺部の一重組織
と中空部との境界部の強度に影響され、Ｄｗ方向又はＤ
ｆ方向の境界部で破壊することが多くなる。[0007] The inside of the hollow portion is made substantially circular.
That is, the diameter in the warp direction indicated by Dw in FIG.
The values of the diameter in the weft direction indicated by f and the diameters Db 1 and Db 2 in the two bias directions in which the angle between the warp and the weft orthogonal to each other is 45 ° are formed substantially equal. When inflated by the hot gas generated from the gas generator, the pressure resistance of the woven airbag is affected by the strength of the boundary between the single tissue and the hollow portion in the peripheral portion, and is determined in the direction Dw or Dw.
Breakage often occurs at the boundary in the f direction.
【０００８】[0008]
【発明が解決しようとする課題】本発明は従来公知の袋
織エアバッグの問題点を解決して信頼性のある構造を有
する袋織エアバッグを提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the conventionally known woven airbag and to provide a woven airbag having a reliable structure.
【０００９】[0009]
【課題を解決するための手段】本発明者は、中空部がお
おむね円形である袋織エアバッグの中空部の経糸方向お
よび緯糸方向とバイアス方向の各々の展脹力の負担の状
態を鋭意研究することにより本発明に到達した。即ち、
本発明は、中空部の周辺部が接結一重組織帯で接合され
ている。平面視がおおむね円形の袋織エアバッグにおい
て、該袋織エアバッグの経糸密度と緯糸密度が中空部の
中心から周辺部に向かって減少し、かつ中空部の中心を
通る互いに直交するバイアス方向の周辺部の、経糸密度
と緯糸密度の和で表わされる織物密度を経糸方向および
緯糸方向の周辺部の織物密度よりも少くすることを特徴
とする袋織エアバッグ、である。SUMMARY OF THE INVENTION The inventor of the present invention has studied diligently the state of the burden of the inflation force in the warp direction, the weft direction, and the bias direction of the hollow portion of a hollow airbag having a generally circular hollow portion. Thereby, the present invention has been achieved. That is,
In the present invention, the peripheral portion of the hollow portion is joined by a single tissue band. In a woven airbag having a generally circular shape in plan view, the warp density and the weft density of the woven airbag decrease from the center of the hollow portion toward the peripheral portion, and the peripheral portions in the bias direction perpendicular to each other pass through the center of the hollow portion. A woven fabric airbag characterized in that the woven fabric density represented by the sum of the warp density and the weft density is lower than the woven fabric density in the periphery in the warp direction and the weft direction.
【００１０】本発明の袋織エアバッグは、経糸密度と緯
糸密度を中空部の中心から周辺部に向かって減少させる
ことによって、経糸および緯糸の強力を織物強力として
有効に活用しつつ、袋織エアバッグの軽量化を図ること
ができる。経糸密度と緯糸密度の減少の割合は、経糸、
緯糸ともに同じ様に減少させるのが好ましく、例えば袋
織エアバッグ全体としての均一性を保持する為に中空部
の中心から等高線状に徐々に減少させることが必要であ
る。また、密度の減少の仕方も連続したスロープ状であ
る方が良いが、階段状、段々畑状などでもよく、特に限
定するものでない。The woven airbag of the present invention reduces the warp density and the weft density from the center of the hollow portion toward the peripheral portion, thereby effectively utilizing the strength of the warp and the weft as the woven fabric strength. Can be reduced in weight. The rate of decrease in warp density and weft density is
It is preferable that the weft yarns are reduced in the same manner. For example, in order to maintain the uniformity of the entire woven airbag, it is necessary to gradually reduce them in a contour line from the center of the hollow portion. The density is preferably reduced in a continuous slope shape, but may be in a stepped shape or a stepped field shape, and is not particularly limited.
【００１１】更に、通常、ガス発生器を取付けるための
取付口は強度を高くするため、織物密度を高くしておく
方が好ましいため、中空部の中心は十字状に織物密度を
高くしておき、その外側から密度を減少させてもよい。
また、バイアス方向の周辺部の織物密度を、経糸方向又
は緯糸方向の周辺部の織物密度のほぼ１／√２にするこ
とが袋織エアバッグの周辺部全体として、耐圧強度が均
一化され、軽量でかつ優れた耐圧強度をもつ袋織エアバ
ッグを得るために好ましい。ここで、ほぼ１／√２（＝
０．７０１）とは、０．６７〜０．７４、即ち１０％程
度のバラツキの中に入ることをいう。Further, it is usually preferable to increase the density of the woven fabric in order to increase the strength of the mounting opening for mounting the gas generator. Therefore, the density of the woven fabric is increased in a cross shape at the center of the hollow portion. , The density may be reduced from outside.
In addition, by setting the fabric density in the peripheral portion in the bias direction to approximately 1 / √2 of the fabric density in the peripheral portion in the warp direction or the weft direction, the pressure resistance is made uniform throughout the peripheral portion of the woven airbag, and the weight is reduced. It is preferable to obtain a woven airbag having excellent pressure resistance. Here, approximately 1 / √2 (=
0.701) means that the variation falls within the range of 0.67 to 0.74, that is, about 10%.
【００１２】図１は、本発明の袋織エアバッグを模式的
に説明する部分平面図であり、袋織エアバッグ全体の右
上１／４を示している。袋織エアバッグの中空部２
（３）、周辺部の接結一重組織帯４、ガス発生器取付口
５、縦線６および横線７はそれぞれ織物の経糸および緯
糸を表わし線の間隔が密度の粗密を、模式的に表わすも
のである。FIG. 1 is a partial plan view schematically illustrating a woven airbag of the present invention, and shows the upper right quarter of the entire woven airbag. Hollow part 2 of woven airbag
(3) The single-piece band 4 at the periphery, the gas generator mounting opening 5, the vertical line 6 and the horizontal line 7 represent the warp and the weft of the woven fabric, respectively, and the interval between the lines schematically represents the density. It is.
【００１３】本発明は、図１に示す如く、中空部の中心
Ｃから経糸周辺方向Ｗへ、およびＣから緯糸周辺方向Ｆ
へ順次密度が低下し、バイアス方向周辺部の織物密度が
経糸方向周辺部又は緯糸方向周辺部の織物密度よりも少
ないことを特徴とする袋織エアバッグである。袋織エア
バッグが膨脹した時、周辺部に発生す展脹力は、Ｄｗ方
向およびＤｆ方向では、経糸および緯糸のみが単独で負
担するのに対し、Ｄｂ1 方向およびＤｂ2 方向では同じ
経糸および緯糸が展脹力の丁度１／√２の分力をそれぞ
れ負担し合う。即ち袋織エアバッグを膨脹させている時
にＤｂ1 方向及びＤｂ2 方向の経糸および緯糸にかかる
力は、計算上はＤｗ方向の経糸、又はＤｆ方向の緯糸の
１／√２となり、膨脹が進行していくと、常にＤｗ方向
又はＤｆ方向が破壊することになる。As shown in FIG. 1, the present invention is directed to a warp peripheral direction W from the center C of the hollow portion and a weft peripheral direction F from the center C.
The woven fabric airbag is characterized in that the density gradually decreases, and the woven fabric density in the peripheral portion in the bias direction is lower than the woven fabric density in the peripheral portion in the warp direction or the peripheral portion in the weft direction. When the hollow weave air bag is inflated, occur to exhibition脹力to the peripheral portion, Dw in the direction and the Df direction, whereas only the warp and weft to bear alone, Db 1 direction and Db same warp and weft yarns in two directions Share exactly 1 / √2 of the expansion force. That force applied to Db 1 direction and Db 2 directions of warp and weft when it is inflated the hollow weave air bag is calculated on the 1 / √2 next Dw direction of the warp or Df direction of the weft, expansion proceeds As a result, the Dw direction or the Df direction always breaks.
【００１４】従って、袋織エアバッグとしての耐圧強度
は、Ｄｗ方向、Ｄｆ方向の織物構成（糸の太さ、織組
織、織密度など）によって決まることになり、織物のＤ
ｂ1 方向、Ｄｂ2 方向は耐圧強度には関与しないことに
なる。通常、エアバッグの耐圧強度を改良する為には、
用いる織物密度を上げればよいが、袋織エアバッグのよ
うに、上側と下側の織物を部分的に一重組織で接結する
場合は、ある程度以上の、例えば４２０ｄ／７０ｆのナ
イロン糸を使用した場合、５０本／吋以上の高密度で織
り上げることは織機に大きな負荷が加わるため無理があ
った。Accordingly, the pressure resistance of the woven airbag is determined by the woven structure (thickness of yarn, woven structure, woven density, etc.) in the Dw and Df directions.
b 1 direction, Db 2 direction is not involved in the pressure resistance. Usually, in order to improve the pressure resistance of the airbag,
The density of the woven fabric used may be increased, but when the upper and lower woven fabrics are partially connected by a single structure like a woven airbag, when a certain amount or more, for example, 420d / 70f nylon yarn is used. Weaving at a high density of 50 yarns / inch or more was impossible because a large load was applied to the loom.
【００１５】逆にいえば、Ｄｗ方向およびＤｆ方向の耐
圧強度を改良するため、Ｄｂ1 方向およびＤｂ2 方向の
織物密度を下げ適正に設定することにより、膨脹時の破
壊箇所を不特定化、均等化することができ、耐圧強度の
改良を図ることができる。袋織エアバッグの耐圧強度を
上げるには、Ｄｆ方向、およびＤｗ方向中空部周辺の織
物密度を相対的に高くすればよいが、Ｄｗ方向の緯糸密
度は織機の打込み能力で規定される。[0015] Conversely, to improve the pressure resistance of Dw direction and Df directions, by properly setting lowers the closeness of Db 1 direction and Db 2 directions, unspecified the destruction point of time of inflation, It can be equalized, and the pressure resistance can be improved. To increase the pressure resistance of the woven airbag, the density of the fabric around the hollow portion in the Df direction and the Dw direction may be relatively increased, but the weft density in the Dw direction is determined by the driving capability of the loom.
【００１６】また、バイアス方向の中空部周辺の織物密
度は、理論上は、Ｄｆ方向およびＤｗ方向の中空部周辺
の織物密度の１／√２でよいが、現実には、密度が少な
過ぎると、中空部周辺の目づれや、膨脹時の変形が大き
過ぎて、却って耐圧強度を下げることになる。またバイ
アス方向の中空部周辺の経糸密度、緯糸密度は、半径を
Ｉとした時、中心から０．７付近の密度になるから、織
物を構成する原糸のデニール、織物組織、Ｄｆ方向およ
びＤｗ方向の織物密度などに応じて、実験を繰り返して
０．７付近の織物密度の最適値を求めればよい。The density of the fabric around the hollow portion in the bias direction may be theoretically 1 / √2 of the density of the fabric around the hollow portion in the Df direction and the Dw direction, but in reality, if the density is too small, In addition, the clogging around the hollow portion and the deformation during expansion are too large, so that the pressure resistance is lowered. Further, the warp density and the weft density around the hollow portion in the bias direction become a density near 0.7 from the center when the radius is I, so that the denier of the original yarn constituting the woven fabric, the woven fabric structure, the Df direction and the Dw Depending on the density of the fabric in the direction, etc., the experiment may be repeated to find the optimum value of the fabric density near 0.7.
【００１７】周辺部の織組織は要求されるエアバッグの
耐圧強度、中空部周辺の織物密度などに応じて、選定す
ればよく、平織、斜子織その他の変則織、これらの併用
などがある。また、周辺部の幅は、製織性、織組織、な
どに応じて決めればよいが、１５〜４０ｍｍ程度あれば
よい。The woven structure in the peripheral portion may be selected according to the required pressure resistance of the airbag, the density of the woven fabric in the vicinity of the hollow portion, and the like, and there are plain weave, sloped weave and other irregular weaves, and combinations thereof. . The width of the peripheral portion may be determined according to the weaving property, the weaving structure, and the like, but may be about 15 to 40 mm.
【００１８】本発明の袋織エアバッグは、必要に応じて
不通気加工を施してよい。例えばエアバッグの上側織
物、下側織物の両方又は片方の全部、あるいは両方又は
片方の一部に樹脂ゴムなどの被覆材の、コーティング、
ディッピング、ラミネート、その他の積層法などによっ
て行えばよい。また、場合によっては、全く不通気加工
を施さなくてもよい。[0018] The woven airbag of the present invention may be subjected to impermeable processing as necessary. For example, the upper fabric of the airbag, both or one or both of the lower fabric, or coating of a coating material such as resin rubber on both or a part of one,
It may be performed by dipping, laminating, or other laminating methods. In some cases, it is not necessary to perform the air-impermeable processing at all.
【００１９】本発明の袋織エアバッグは、通常ガス発生
器取付け口を介して裏返して周辺部を中空部内に収めて
用いられ、さらにガス発生器取付口の外周に補強布を縫
製、接着などによって取付けて用いられる。その他エア
バッグとして必要な各種の構成を付加して用いてもよ
い。また、これらの補強布、固定布、被覆材、など本体
袋織エアバッグへの取付けは、ミシンによる縫製、高周
波、超音波などによる溶融接合、ゴム糊、粘着剤、ホッ
トメルト剤などの接着剤による接着接合、あるいはこれ
らの併用など、種々の方法から設定すればよい。The woven airbag of the present invention is usually used by turning over a gas generator mounting opening and turning the peripheral portion into a hollow portion, and further sewing or bonding a reinforcing cloth to the outer periphery of the gas generator mounting opening. Used by mounting. In addition, various configurations required as an airbag may be added and used. In addition, these reinforcing cloths, fixing cloths, covering materials, etc. are attached to the main bag woven airbag by sewing with a sewing machine, fusion bonding by high frequency, ultrasonic wave, etc., rubber glue, adhesive, hot melt adhesive etc. What is necessary is just to set from various methods, such as adhesive bonding or the combination of these.
【００２０】本発明の袋織エアバッグの袋体および補強
布を構成する繊維糸条の種類としては、溶融紡糸、乾式
紡糸、湿式紡糸などから得られた長繊維、紡績糸、混繊
糸、カバリング糸あるいはこれらの併用、更には嵩高加
工などを行った長繊維の加工糸などいずれでもよい。本
発明の袋織エアバッグの袋体および補強布に用いられる
繊維糸条の材料は、例えばナイロン６、６６、４６など
のポリアミド繊維、パラフェニレンテレフタルアミド、
および芳香族エーテルとの共重合体などに代表されるア
ラミド繊維、ポリアルキレンフタレートに代表されるポ
リエステル繊維、全芳香族ポリエステル繊維、ビニロン
繊維、レーヨン繊維、超高分子量ポリエチレンなどのポ
リオレフィン繊維、ポリオキシメチレン繊維、パラフェ
ニレンサルフォン、ポリサルフォンなどのサルフォン系
繊維、ポリエーテルエーテルケトン繊維、ポリイミド繊
維、ポリエーテルイミド繊維、炭素繊維などがあるが場
合によっては、ガラス繊維、セラミックス繊維、金属繊
維などの無機繊維を単独又は併用使用してもよい。The types of the fiber yarns constituting the bag body and the reinforcing cloth of the airbag of the present invention include filaments obtained from melt spinning, dry spinning, and wet spinning, spun yarns, blended yarns, and covering. Any of yarn, a combination thereof, and a processed yarn of a long fiber which has been subjected to bulky processing or the like may be used. The material of the fiber thread used for the bag body and the reinforcing cloth of the woven airbag of the present invention is, for example, polyamide fiber such as nylon 6, 66, 46, paraphenylene terephthalamide,
Aramid fibers represented by copolymers with aromatic ethers, polyester fibers represented by polyalkylene phthalates, wholly aromatic polyester fibers, vinylon fibers, rayon fibers, polyolefin fibers such as ultra-high molecular weight polyethylene, polyoxy fibers Sulfone fibers such as methylene fiber, paraphenylene sulfone and polysulfone, polyetheretherketone fiber, polyimide fiber, polyetherimide fiber, carbon fiber, etc.In some cases, inorganic fiber such as glass fiber, ceramic fiber, metal fiber, etc. Fibers may be used alone or in combination.
【００２１】上記繊維糸条の材料は、糸条の製造工程や
加工工程での生産性のため、あるいは特性改良のために
通常使用されている各種添加剤を含んでいてもよい。例
えば熱安定剤、酸化防止剤、光安定剤、平滑剤、可塑
剤、増粘剤、顔料、光沢付与剤、難燃剤などを含んでい
てもよい。なお、本発明の袋織エアバッグをドライバー
席用エアバッグを例として説明したが、本発明の構成を
助手席用、後席用又はドアサイド用エアバッグに対して
適用できることは言うまでもない。The material of the above-mentioned fiber yarn may contain various additives usually used for productivity in the yarn manufacturing process and processing process, or for improving properties. For example, it may contain a heat stabilizer, an antioxidant, a light stabilizer, a leveling agent, a plasticizer, a thickener, a pigment, a glossing agent, a flame retardant, and the like. Although the woven airbag of the present invention has been described by taking an airbag for a driver's seat as an example, it goes without saying that the configuration of the present invention can be applied to an airbag for a passenger seat, a rear seat, or a door side.
【００２２】以上の如く本発明の袋織エアバッグは、特
に自動車の衝突による乗員の衝撃を吸収する、耐圧強度
に優れたものであるが、場合によっては、ガス発生器か
ら発生する熱ガス以外の気体、液体、固体、粉体、粒体
あるいはこれらの混合体などの噴出、充填により膨脹、
展開する他の用途に適用してもよく、本発明の袋織エア
バッグの用途範囲等に入るものである。As described above, the woven airbag of the present invention is excellent in pressure resistance and particularly absorbs the impact of an occupant due to an automobile collision. However, in some cases, the airbag other than the hot gas generated from the gas generator may be used. Swelling and filling of gas, liquid, solid, powder, granules, or mixture of these,
The present invention may be applied to other applications to be deployed, and falls within the application range of the woven airbag of the present invention.
【００２３】[0023]
【実施例】以下、本発明の袋織エアバッグと従来公知の
袋織エアバッグの例を示し、併せて性能比較を行う。実
施例の説明に先立ちエアバッグの耐圧強度と重量測定法
を説明する。 （１）耐圧強度 図３に示すバースト試験装置でエアバッグ２１の中にエ
アバッグの容量より膨脹時の容量の大きい風船２２を入
れた上で、エアバッグ取付板２３に取付具２４を用いて
固定する。管２５を介して供給される高圧空気２７の供
給量を、圧力調節弁２６によってエアバッグをゴム風船
と共に膨らませ、エアバッグが破裂するまでの時間を計
測する。 （２）重量測定法 電子式上皿天秤にてエアバッグの重量を求める。EXAMPLES Examples of the woven airbag of the present invention and conventionally known woven airbags will be described below, and their performance will be compared. Prior to the description of the embodiments, a method of measuring the pressure resistance and weight of the airbag will be described. (1) Withstand pressure strength A balloon 22 having a larger capacity when inflated than the capacity of the airbag is put in the airbag 21 with the burst test device shown in FIG. Fix it. The supply amount of the high-pressure air 27 supplied through the pipe 25 is measured by measuring the time until the airbag bursts by inflating the airbag together with the rubber balloon by the pressure control valve 26. (2) Weight measurement method The weight of the airbag is determined using an electronic precision balance.
【００２４】[0024]
【実施例１】ナイロン６６マルチフィラメント糸の４２
０ｄ／７０ｆを用いてジャカード機構付き織機で、図１
で示される中空部の直径が７１０ｍｍφの袋織物を得
た。先ず、ガス発生器取付け口の部分即ち、中空部の中
心Ｃから５Ｗ及び５Ｆを５３ｍｍとし、該中空部２及び
３のそれぞれの経糸密度および緯糸密度を４８本／吋と
した。５Ｗから外側の経糸は変則筬を使用して、５０ｍ
ｍ毎に４本／吋減らし、また、５Ｆから外側の緯糸は打
込み密度を規定するカムを変えることにより５０ｍｍ毎
に４本／吋ずつ減らし、それぞれ周辺部の密度を２４本
／吋とした。次いで、精練８０℃×１０分、熱セット１
８０℃×５分行い熱セットした織物を得た。このとき経
糸方向、緯糸方向およびバイアス方向の周辺の織物密度
はそれぞれ７２本／吋、７２本／吋、６４本／吋であっ
た。Example 1 Nylon 66 multifilament yarn 42
0d / 70f using a loom with a jacquard mechanism.
A bag fabric with a hollow portion having a diameter of 710 mmφ was obtained. First, 5W and 5F were 53 mm from the center of the gas generator mounting port, that is, the center C of the hollow portion, and the warp density and the weft density of the hollow portions 2 and 3 were 48 yarns / inch. The warp outside from 5W is 50m using an irregular reed.
The number of wefts on the outside from 5F was reduced by 4 / inch every 50 mm by changing the cam which determines the driving density, and the density at the periphery was set to 24 / inch. Next, scouring 80 ° C. × 10 minutes, heat set 1
Performed at 80 ° C. for 5 minutes to obtain a heat-set fabric. At this time, the woven fabric densities around the warp direction, the weft direction and the bias direction were 72 yarns / inch, 72 yarns / inch, and 64 yarns / inch, respectively.
【００２５】得られた袋織物から巾２０ｍｍの接結一重
組織帯を切出し、かつ下側織物の中央に直径１００ｍｍ
φのガス発生器取付口を設け、重量１６６ｇの袋織エア
バッグを得て耐圧評価をした。１．５ｋｇｆ／ｃｍ2 の
圧力で破裂しなかった。From the obtained bag fabric, a single-layered tissue band having a width of 20 mm was cut out, and the center of the lower fabric was 100 mm in diameter.
A gas generator mounting port of φ was provided, and a woven airbag weighing 166 g was obtained, and pressure resistance was evaluated. It did not burst at a pressure of 1.5 kgf / cm 2 .
【００２６】[0026]
【比較例１】実施例１と同様のナイロン６６マルチフィ
ラメント糸を使用して、経糸密度、緯糸密度が全て４３
本／吋である中空部の直径が７１０ｍｍφの袋織物を作
成した。次いで、実施例１と同様に、精練・セットを施
し次いで１６５ｇ重量の袋織エアバッグとし耐圧評価を
した。Comparative Example 1 Using the same nylon 66 multifilament yarn as in Example 1, the warp density and the weft density were all 43
A bag fabric having a hollow part of 710 mmφ in diameter, which is a book / inch, was prepared. Next, scouring and setting were performed in the same manner as in Example 1, and then a woven airbag having a weight of 165 g was evaluated for pressure resistance.
【００２７】評価結果は、１．５ｋｇｆ／ｃｍ2 の圧力
で破裂した。実施例１は、比較例１と同程度の重量であ
るにもかかわらず優れた耐圧性を示す。As a result of the evaluation, the sample burst at a pressure of 1.5 kgf / cm 2 . Example 1 shows excellent pressure resistance despite being about the same weight as Comparative Example 1.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【発明の効果】本発明による袋織エアバッグは、従来公
知の袋織エアバッグと同等の重さで耐圧強度を高くする
ことができるものであり、エアバッグシステム全体の信
頼性を高めることができ、本システムの普及促進に大い
に有効である。The woven airbag according to the present invention has the same weight as a conventionally known woven airbag and can increase the pressure resistance, and can improve the reliability of the entire airbag system. This is very effective in promoting this system.
【図１】本発明の袋織エアバッグの１例を示す経糸およ
び緯糸の密度を説明する部分平面図。FIG. 1 is a partial plan view illustrating the density of a warp and a weft showing an example of a woven airbag of the present invention.
【図２】従来公知の袋織エアバッグを示し、図２（Ａ）
は平面図、図２（Ｂ）は断面図。FIG. 2 shows a conventionally known woven airbag, and FIG.
Is a plan view, and FIG. 2B is a cross-sectional view.
【図３】耐圧強度測定用バースト試験装置の説明図。FIG. 3 is an explanatory diagram of a burst test device for measuring pressure resistance.
１ 本発明の袋織エアバッグ ２ 本発明の袋織エアバッグ下側織物 ３ 本発明の袋織エアバッグ上側織物 ４ 本発明の接結一重組織帯 ５ 本発明のガス発生器取付口 ６ 経糸 ７ 緯糸 １１ 従来公知の袋織エアバッグ １２ 従来公知の袋織エアバッグの下側織物 １３ 従来公知の袋織エアバッグの上側織物 １４ 従来公知の袋織エアバッグの接結一重組織帯 １５ 従来公知の袋織エアバッグのガス発生器取付口 １６ 従来公知の袋織エアバッグの中空部 ２１ エアバッグ ２２ 風船 ２３ エアバッグ取付板 ２４ 取付具 ２５ 管 ２６ 圧力調節弁 ２７ 高圧空気 Ｃ 中空部の中心 Ｂ 中空部の中心を通る互に直交するバイヤス方向 Ｗ 経糸周辺方向 Ｆ 緯糸周辺方向 Ｄｗ 経糸方向直径 Ｄｆ 緯糸方向直径 Ｄｂ1 、Ｄｂ2 バイヤス方向直径DESCRIPTION OF SYMBOLS 1 The woven airbag of the present invention 2 The lower woven fabric of the woven airbag of the present invention 3 The upper woven fabric of the woven airbag of the present invention 4 The bonded single tissue band of the present invention 5 The gas generator attachment opening of the present invention 6 Warp 7 Weft 11 Known woven airbag 12 Lower woven fabric of conventionally known woven airbag 13 Upper woven fabric of conventionally known woven airbag 14 Bonded single tissue band of conventionally known woven airbag 15 Gas generator of conventionally known woven airbag Attachment port 16 Hollow portion of conventionally known woven airbag 21 Airbag 22 Balloon 23 Airbag attachment plate 24 Attachment 25 Tube 26 Pressure control valve 27 High-pressure air C Center of hollow portion B Crosses at right angles through the center of hollow portion Baiyasu direction W warp peripheral direction F weft peripheral direction Dw warp direction diameter Df weft direction diameter Db 1, Db 2 Baiyasu directions diameter
Claims (1)
合されている袋織エアバッグにおいて、該中空部が平面
視でおおむね円形であり、該中空部の中心から周辺部に
向かって、経糸密度と緯糸密度が減少し、かつ該中空部
の中心を通る互いに直交するバイアス方向における中空
部周辺織物の経糸密度と緯糸密度の和で表わされる織物
密度を、経糸方向および緯糸方向の周辺の織物密度より
も少なくすることを特徴とする袋織エアバッグ。1. A woven airbag in which a peripheral portion of a hollow portion is joined by a binding single tissue band, wherein the hollow portion has a substantially circular shape in plan view, and extends from the center of the hollow portion to the peripheral portion. The warp density and the weft density are reduced, and the fabric density represented by the sum of the warp density and the weft density of the woven fabric around the hollow portion in the bias direction passing through the center of the hollow portion and orthogonal to each other is determined in the warp direction and the weft direction. A woven airbag characterized by having a density lower than that of the woven fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3154493A JP2992129B2 (en) | 1991-06-26 | 1991-06-26 | Woven airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3154493A JP2992129B2 (en) | 1991-06-26 | 1991-06-26 | Woven airbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH054554A JPH054554A (en) | 1993-01-14 |
| JP2992129B2 true JP2992129B2 (en) | 1999-12-20 |
Family
ID=15585454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3154493A Expired - Fee Related JP2992129B2 (en) | 1991-06-26 | 1991-06-26 | Woven airbag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2992129B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607873B (en) * | 2020-06-10 | 2021-09-10 | 淮北市凯莱智能织造有限公司 | Elliptical hollow wiredrawing cloth and weaving method thereof |
-
1991
- 1991-06-26 JP JP3154493A patent/JP2992129B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054554A (en) | 1993-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5865464A (en) | Air bag | |
| US5236775A (en) | Fabric for airbag | |
| EP0611683B1 (en) | Air bag with reinforcing belts | |
| US6632753B1 (en) | Motor vehicle air bag and fabric for use in same | |
| US5213363A (en) | Hollow weave air bag | |
| KR20100117527A (en) | Tube typed fabric substrate for introducing gas into airbag and preparation method thereof | |
| US7438311B2 (en) | Hose for introduction and distribution of inflator gas | |
| JPH10204745A (en) | Air bag and its production | |
| KR20040057992A (en) | Hose for introduction and distribution of inflator gas | |
| JP3849818B2 (en) | Airbag base fabric, airbag and method of manufacturing the same | |
| JP2992129B2 (en) | Woven airbag | |
| US8101252B1 (en) | Air bag | |
| JPH09279437A (en) | Base fabric for air bag and air bag | |
| JP3247400B2 (en) | Woven airbag | |
| JP3504722B2 (en) | Woven airbag fabric | |
| JP2967134B2 (en) | Airbag | |
| JP2001271247A (en) | Base fabric for air bag and air bag | |
| JP4377746B2 (en) | Inflator gas introduction / distribution hose and manufacturing method thereof | |
| JP3085790B2 (en) | Base fabric exhaust airbag | |
| KR20100136699A (en) | Tube typed fabric substrate for introducing gas into airbag and preparation method thereof | |
| JP4311928B2 (en) | Inflator gas introduction and distribution hose | |
| JP3139763B2 (en) | Occupant protection airbag | |
| JPH0911832A (en) | Noncoat air bag | |
| JP3504721B2 (en) | Woven airbag | |
| JP4406281B2 (en) | Inflator gas introduction distribution hose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |