JPH04121251A - Air bag base cloth - Google Patents
Air bag base clothInfo
- Publication number
- JPH04121251A JPH04121251A JP2243585A JP24358590A JPH04121251A JP H04121251 A JPH04121251 A JP H04121251A JP 2243585 A JP2243585 A JP 2243585A JP 24358590 A JP24358590 A JP 24358590A JP H04121251 A JPH04121251 A JP H04121251A
- Authority
- JP
- Japan
- Prior art keywords
- air bag
- over
- strength
- textile
- base cloth
- 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.)
- Pending
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000012209 synthetic fiber Substances 0.000 claims abstract description 10
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 10
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 9
- 230000014759 maintenance of location Effects 0.000 claims abstract description 5
- 239000002759 woven fabric Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 239000004753 textile Substances 0.000 abstract 4
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000012210 heat-resistant fiber Substances 0.000 description 8
- 239000003721 gunpowder Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- OUKZUIOFTUUCEN-UHFFFAOYSA-N 7$l^{6}-thiabicyclo[4.1.0]hepta-1,3,5-triene 7,7-dioxide Chemical compound C1=CC=C2S(=O)(=O)C2=C1 OUKZUIOFTUUCEN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 150000008378 aryl ethers Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Air Bags (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は車両用、特に自動車用エアバッグ基布に関する
ものである。さらに詳しくは、本発明は軽量、柔軟で耐
久性に優れ、かつエアバッグが作動したときの膨張応答
性が良好であるとともに、火薬の燃焼で生成した高温残
渣による危険のないエアバッグ基布に関するものである
（従来技術）
車両用エアバッグ基布として、これまで合成繊維からな
る布帛に合成ゴムや天然ゴムなどのエラストマーをライ
ニングしたものが一般的に知られている。しかし、エア
バッグとしての諸性能を向上させるためにはある程度の
厚さでエラストマーをライニングすることから、このよ
うな基布は高目付で硬く、折りたたみ姓が悪く収納容積
も大きくなる欠点がある。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an airbag base fabric for vehicles, particularly for automobiles. More specifically, the present invention relates to an airbag base fabric that is lightweight, flexible, and durable, has good expansion response when the airbag is activated, and is free from the danger of high-temperature residue generated by combustion of gunpowder. (Prior Art) As a vehicle airbag base fabric, a fabric made of synthetic fibers lined with an elastomer such as synthetic rubber or natural rubber is generally known. However, in order to improve the performance of an airbag, the elastomer lining must be made to a certain thickness, so such base fabrics have a high basis weight and are hard, making them difficult to fold and requiring a large storage volume.
このような欠点を改善するために、特開昭６４−７０２
４８号で原糸強度が１５ｇ／ｄ以上、２００℃での強度
保持率が８０％以上の繊維糸条で生地を構成するととも
に、該生地の目付を特定の範囲以下とした生地からなる
エアバッグ基布が提案されている。しかしながら、この
エアバッグ基布は柔軟性、折りたたみ性などは改善され
、収納容積は小さくなるものの、エアバッグが作動した
とき火薬の燃焼で生成した高温残渣が基布を透過して人
体に接触する危険性はそのまま問題点として残っている
。In order to improve these drawbacks, Japanese Patent Application Laid-Open No. 64-702
An airbag made of a fabric made of No. 48 fiber yarn with a strength of 15 g/d or more and a strength retention rate of 80% or more at 200°C, and whose fabric weight is below a specific range. A base fabric is proposed. However, although this airbag base fabric has improved flexibility and foldability, and has a smaller storage volume, when the airbag is activated, high-temperature residue generated from the combustion of gunpowder passes through the base fabric and comes into contact with the human body. Danger remains an issue.
（発明が解決しようとする課題）
前記したような従来技術の問題点に鋸み、本発明の目的
は軽量化、柔軟性、折りたたみ性、耐久性が改善される
とともに、エアバッグ作動時の火薬の燃焼で発生する高
温残渣に起因する人体への危険性のないエアバッグ基布
の提供にある。(Problems to be Solved by the Invention) In view of the problems of the prior art as described above, an object of the present invention is to reduce the weight, improve flexibility, foldability, and durability, and reduce the amount of explosives when the airbag is activated. An object of the present invention is to provide an airbag base fabric that poses no danger to the human body due to high-temperature residue generated by combustion.
（課題を解決するための手段）
前記の目的を達成するために検討を行なった結果、熱可
塑性合成繊維と特定の物理特性値を有する耐熱性繊維と
の混撚糸で構成した織物が、前記高温残渣をその糸−系
間で効果的に捕捉することを見出だしなものて′ある
すなわち本発明は、熱可塑性合成繊維と原糸強度が１５
ｇ／ｄ以上で２００℃での強度保持率が８０％以上であ
る繊維との混撚糸からなる織物で構成したエアバッグ基
布によって達成することかでまる。(Means for Solving the Problems) As a result of studies conducted to achieve the above-mentioned object, it was found that a fabric made of a mixed yarn of thermoplastic synthetic fibers and heat-resistant fibers having specific physical property values can be used at high temperatures. It has been discovered that the residue can be effectively trapped between the yarn-system.
This can be achieved by using an airbag base fabric made of a fabric made of yarn mixed with fibers having a strength retention rate of 80% or more at 200°C or more at g/d or more.
本発明のエアバッグ基布を構成する混撚糸で使用する熱
可塑性合成繊維には、ポリアミド繊維、ポリエステル繊
維などがある。また、原糸強度が１５ｇ／ｄ以上で２０
０℃での強度保持率が８０％以上である繊維（以下耐熱
性繊維〉には、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で代表されるアラミド繊維
、全芳香族ポリエステル繊維、パラフェニレンサルフオ
ン、ポリサルフオンなどのサルフオン系繊維、炭素繊維
等がある。このような高強度特性をもつ耐熱性繊維を含
む混撚糸をエアバッグ基布の構成糸とすることによって
、エアバッグ作動時の火薬の燃焼で発生する高温残渣を
捕捉してエアバッグ外部への飛散が防止でき、かつエア
バッグの軽量化を図ることができる。前記混撚糸中に含
まれる耐熱性繊維は２０〜８０重量％が好ましい。Thermoplastic synthetic fibers used in the mixed yarn constituting the airbag base fabric of the present invention include polyamide fibers and polyester fibers. In addition, if the yarn strength is 15 g/d or more, 20
Fibers with a strength retention rate of 80% or more at 0°C (hereinafter referred to as heat-resistant fibers) include aramid fibers typified by copolymers of paraphenylene terephthalamide and aromatic ethers, fully aromatic polyester fibers, and para-phenylene terephthalamide fibers. These include sulfon-based fibers such as phenylene sulfon and polysulfon, carbon fibers, etc. By using a twisted yarn containing such heat-resistant fibers with high strength properties as the constituent yarns of the airbag base fabric, it is possible to It is possible to capture the high-temperature residue generated by the combustion of gunpowder and prevent it from scattering to the outside of the airbag, and it is also possible to reduce the weight of the airbag.The heat-resistant fiber contained in the mixed twisted yarn is 20 to 80% by weight. is preferred.
なお、本発明のエアバッグ基布を構成する混撚糸からな
る織物は、表面にエラストマーなどをコーティングして
いないものが通気量の設定、軽量化、折りたたみ性など
を良好にし、収納容積を小さくすること、およびエアバ
ッグに成形したときにガス抜き孔の設置が不要になるこ
と、などから好適である。In addition, the fabric made of mixed twisted yarns constituting the airbag base fabric of the present invention is not coated with elastomer or the like on the surface, which improves the airflow rate setting, weight reduction, foldability, etc., and reduces storage volume. This is preferable because it eliminates the need to provide gas vent holes when molded into an airbag.
（効果）
本発明になるエアバッグ基布は、前述したように熱可塑
性合成繊維と特定の物理特性値を有する耐熱性繊維との
混撚糸からなる織物で構成されているため、次のような
効果を有する。(Effects) As mentioned above, the airbag base fabric of the present invention is composed of a woven fabric made of a mixed yarn of thermoplastic synthetic fibers and heat-resistant fibers having specific physical property values. have an effect.
（１）エアバッグ作動時の火薬の燃焼で発生する高温残
渣を、その糸−系間で効果的に捕捉して人体への危険性
がなくなる
（２）エアバックに成形したとき軽量化、柔軟性、折り
たたみ性が向上する。(1) The high-temperature residue generated by the combustion of gunpowder when the airbag is activated is effectively captured between the threads and the system, eliminating the danger to the human body. (2) Light and flexible when formed into an airbag. Improves flexibility and foldability.
（３）耐熱性繊維単独でも火薬の燃焼で発生する高温残
渣の捕捉は可能であるが、一般的に耐熱性繊維は伸度が
小さくエアバッグ作動時の人体へのエネルギー吸収性が
小さい。このため熱可塑性合成繊維との混撚糸とするこ
とによりエアバッグの膨脂応答性を良好にすることがで
きる。(3) Although heat-resistant fibers alone can capture high-temperature residues generated by combustion of gunpowder, heat-resistant fibers generally have low elongation and have low ability to absorb energy to the human body when an airbag is activated. Therefore, by using a yarn mixed with thermoplastic synthetic fibers, the swelling response of the airbag can be improved.
（４）耐熱性繊維はその伸度が小さいことに起因して耐
摩耗性が低いが、熱可塑性合成繊維との混撚糸とするこ
とによりエアバッグ作動、展開時のモジュールエッヂと
の擦過によるエアバッグバスト圧低下が防止できる。(4) Heat-resistant fibers have low abrasion resistance due to their low elongation, but by twisting them with thermoplastic synthetic fibers, airbags can be activated and air caused by friction with the module edge during deployment. A drop in bag and bust pressure can be prevented.
（５）耐熱性ｍ維と熱可塑性合成繊維とは熱収縮挙動が
大幅に異なっており、織成した織物の寸法変化を小さく
するための熱処理時に、単なる混繊糸ではシワが発生し
て外観品位が低下するが、混撚糸を用いることによって
それが防止できる。(5) The thermal shrinkage behavior of heat-resistant m-fibers and thermoplastic synthetic fibers is significantly different, and during heat treatment to reduce dimensional changes in woven fabrics, simple mixed fiber yarns will wrinkle and deteriorate the appearance quality. However, this can be prevented by using mixed twisted yarns.
Claims (2)
２００℃での強度保持率が８０％以上である繊維との混
撚糸からなる織物で構成したことを特徴とするエアバッ
グ基布。(1) An airbag base fabric characterized by being composed of a woven fabric made of a mixed yarn of thermoplastic synthetic fibers and fibers having a yarn strength of 15 g/d or more and a strength retention rate of 80% or more at 200°C. .
とする請求項第（１）項記載のエアバッグ基布。(2) The airbag base fabric according to claim (1), wherein the fabric is a non-surface coated fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2243585A JPH04121251A (en) | 1990-09-12 | 1990-09-12 | Air bag base cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2243585A JPH04121251A (en) | 1990-09-12 | 1990-09-12 | Air bag base cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04121251A true JPH04121251A (en) | 1992-04-22 |
Family
ID=17106008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2243585A Pending JPH04121251A (en) | 1990-09-12 | 1990-09-12 | Air bag base cloth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04121251A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458725B1 (en) * | 1998-11-20 | 2002-10-01 | Takata Corporation | Airbag base fabric |
| JP2014173196A (en) * | 2013-03-06 | 2014-09-22 | Gifu Univ | Mixed yarn, woven fabric and knitted fabric, composite material and method for manufacturing composite material |
-
1990
- 1990-09-12 JP JP2243585A patent/JPH04121251A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458725B1 (en) * | 1998-11-20 | 2002-10-01 | Takata Corporation | Airbag base fabric |
| JP2014173196A (en) * | 2013-03-06 | 2014-09-22 | Gifu Univ | Mixed yarn, woven fabric and knitted fabric, composite material and method for manufacturing composite material |
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