JPH04228648A - エアバッグ - Google Patents

エアバッグ

Info

Publication number
JPH04228648A
JPH04228648A JP2407989A JP40798990A JPH04228648A JP H04228648 A JPH04228648 A JP H04228648A JP 2407989 A JP2407989 A JP 2407989A JP 40798990 A JP40798990 A JP 40798990A JP H04228648 A JPH04228648 A JP H04228648A
Authority
JP
Japan
Prior art keywords
airbag
cloth
fabric
core material
air bag
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
Application number
JP2407989A
Other languages
English (en)
Inventor
Yasusuke Matsushima
庸介 松島
Takeshi Kimura
武司 木村
Akishi Noda
野田　明志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP2407989A priority Critical patent/JPH04228648A/ja
Priority to DE19914142884 priority patent/DE4142884C2/de
Priority to GB9410576A priority patent/GB2282575B/en
Priority to GB9127276A priority patent/GB2252983B/en
Publication of JPH04228648A publication Critical patent/JPH04228648A/ja
Priority to US08/295,483 priority patent/US5618595A/en
Priority to US08/703,790 priority patent/US5879767A/en
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23509—Fabric
    • B60R2021/23514—Fabric coated fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23523—Composite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
    • B60R2021/23552—Knitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
    • B60R2021/23557—Molding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
    • B60R2021/2359—Welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/902—High modulus filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1341—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1345—Single layer [continuous layer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y10T428/24785—Edge feature including layer embodying mechanically interengaged strands, strand portions or strand-like strips [e.g., weave, knit, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2631—Coating or impregnation provides heat or fire protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3008—Woven fabric has an elastic quality
    • Y10T442/3016—Including a preformed layer other than the elastic woven fabric [e.g., fabric or film or foil or sheet layer, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3008—Woven fabric has an elastic quality
    • Y10T442/3024—Including elastic strand or strip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y10T442/3154—Sheath-core multicomponent strand material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Air Bags (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明はエアバッグに係り、特に
乗員の保護性能に優れ、しかもコンパクト化が可能で低
コストで提供されるエアバッグに関する。
【０００２】
【従来の技術】各種交通機関、特に自動車の衝突時の安
全保護装置として、エアバッグシステムが提案され、既
に実用化されている。現在、一般的に使用されているエ
アバッグの構成材料としては、高強力ナイロン繊維（８
４０デニール）の織物に、クロロプレン等のゴムをコー
ティングした、いわゆるゴム引布が用いられている。
【０００３】
【発明が解決しようとする課題】上記ゴム引布でエアバ
ッグを製造する場合、円形に裁断した上布と下布を縫製
し、更にエアバッグを最適形状に展開させるためのスト
ラップ等を縫製取り付けし、かつエアバッグ展開時に発
生したガスが縫合部からもれるのを防ぐために縫合部を
ゴムコートしなければならず、工程が複雑になるという
欠点があった。また、モジュール内に収納するために折
り畳む必要があり、そのためエアバッグ収納部に大きな
スペース或いは面積を要し、メーターの視認性が悪くな
るという欠点があった。
【０００４】本発明は上記従来の問題点を解決し、乗員
の保護性能に優れ、しかもコンパクト化が可能で、また
、エアバッグ製造工程の簡素化により、低コストで製造
することができるエアバッグを提供することを目的とす
る。
【０００５】
【課題を解決するための手段】本発明のエアバッグは、
上布及び下布の同縁部同志を接合した袋状のエアバッグ
において、少なくとも上布は、線状の芯材と、該芯材に
付着した、該芯材よりも低融点の熱可塑性ポリマーとか
らなる複合繊維を織製して織布となし、且つ前記熱可塑
性ポリマー同志を熱融着してなるシート材で構成されて
いることを特徴とする。
【０００６】以下に本発明を図面を参照して詳細に説明
する。第１図は本発明の一実施例に係るエアバッグの展
開状態を示す断面図、第２図は複合繊維の実施例を示す
断面図、第３図はシート材の実施例を示す断面図、第４
図及び第５図は各々織布及びシート材の実施例を示す断
面図である。第１図に示す如く、本実施例のエアバッグ
１は、略円形状のシート材よりなる上布２と、中央にイ
ンフレーター挿入口３ａを有する略円形状のシート材よ
りなる下布とを、各々の周縁部同志を接合して袋状とし
たものであって、上布２の略中央の裏側面には、補強布
４が接合されている。
【０００７】本実施例において、上布２、下布３、補強
布４は、線状の芯材と、該芯材に付着した、該芯材より
も低融点の熱可塑性ポリマー（以下「低融点ポリマー」
と称す。）とからなる複合繊維を織製して織布となし、
且つ前記低融点ポリマー同志を熱融着してなるシート材
で構成されている。
【０００８】本発明において、上記複合繊維としては、
例えば、第２図に示す如く、線状の芯材５を低融点ポリ
マーの鞘材料６で被覆してなるシース・アンド・コア型
複合繊維７を用いることができる。その他、線状の芯材
に低融点ポリマーをバイメタル状に貼り合わせたサイド
・バイ・サイド型複合繊維、或いは芯材が偏芯した構造
の複合繊維等を用いることもできる。
【０００９】このような複合繊維を構成する芯材材料と
しては、例えば、ポリアミド繊維、ポリエステル繊維、
高弾性繊維、具体的には、アラミド繊維、芳香族ポリエ
ステル繊維、超高分子量ポリエチレン繊維等が挙げられ
る。
【００１０】一方、低融点ポリマーとしては、ポリエチ
レン、変性（低融点）ポリエステル、ポリウレタン、エ
チレン−酢酸ビニル共重合体等が挙げられる。このよう
な低融点ポリマーは、その融点が高いと、後述の織布の
熱融着に際し、芯材の収縮が発生するおそれがあるため
、芯材材料との融点の差が大きいこと、好ましくは芯材
材料の融点よりも１００℃以上、とりわけ１５０℃以上
低い融点を有することが望まれる。
【００１１】本発明においては、一例として、ポリエス
テル芯材（融点２００〜２５０℃）と変性ポリエステル
鞘材（融点９０〜１３０℃）とからなる複合繊維を用い
ることができる。
【００１２】このような複合繊維を織製して得られた織
布を加熱及び必要に応じて圧着して、織布を構成する複
合繊維の低融点ポリマー同志を熱融着させることにより
、溶融した低融点ポリマーが芯材間を流動してその間隙
を埋め、第３図に示す如く、あたかも芯材５の織布の表
裏及び間隔が、溶融、固化した低融点ポリマー８で充填
された通気性のないシート材９が得られる。このような
シート材９を得るための加熱ないし圧着処理は、打ち抜
き加工と同時に行なうことができる。即ち、本発明にお
いては、前記複合繊維を織製してなる織布を加圧ないし
必要に応じて圧着すると共に打抜き加工して、容易かつ
効率的に所望形状の、即ち、上布用、下布用又は補強布
用シート材とすることができる。
【００１３】得られた上布２、下布３及び補強布４は、
まず、補強布４を上布２の所定箇所に熱融着した後、上
布２と下布３とを重ね合せ、周縁部同志を熱融着するこ
とにより、第１図に示すエアバッグ１とする。なお、図
中、１Ａは融着部を示す。
【００１４】なお、第１図に示すエアバッグ１は本発明
の一実施例であって、本発明は何ら図示のものに限定さ
れるものではない。例えば、補強布は必ずしも必要では
なく、なくても良い。また、シート材としては、第４図
に示す如く、通常の繊維よりなる横糸７ａと、複合繊維
よりなる上層の縦糸７ｂと、通常の繊維よりなる下層の
縦糸７ｃとで構成される２層構造の織布７Ａを、加熱圧
着処理して、第５図に示す如く、熱融着層９ａと、通常
の繊維層９ｂとが積層一体化した構造のシート材９Ａと
したものを用いても良い。
【００１５】特に、積層構造のシート材（補強布を有す
る場合を含む）において、低融点ポリマーとして柔軟性
のあるポリエチレン、エチレン−酢酸ビニル共重合体、
ポリウレタン等を用いた複合繊維から構成された織布で
得られるシート材が乗員側となるように配置された上布
を用いたエアバッグであれば、エアバッグ展開時にエア
バッグが乗員の顔や頭等に当った場合でも、乗員を傷付
けることが殆どない。
【００１６】また、下布に、通常の繊維よりなる織布、
又は、複合繊維よりなる織布であって熱融着処理がなさ
れていないものを用いた場合には、インフレーターから
噴出する充填ガス（矢印Ａ）を、下布の織布の織目間か
ら適宜漏出させることができるようになるため、ベント
ホールを必要としない下布通気性を有するエアバッグを
得ることが可能とされる。下布に通常の繊維よりなる織
布を用いる場合、融着を確実なものとするため、上布、
下布間に周縁部に沿って熱融着フィルムを挟むことが好
ましい。
【００１７】
【作用】本発明のエアバッグに係るシート材によれば、
ゴムコーティング処理が不要であり、また、上布と下布
とは縫合することなく、熱融着により容易に接合するこ
とができるため、製造工程の簡易化、製造コストの低廉
化が図れる。しかも、モジュール内への収納性が良好で
、省スペース化が可能である。
【００１８】また、上布を柔軟性のあるものとすること
ができるため、エアバッグ展開時の安全性も高い。
【００１９】
【実施例】以下に実施例を挙げて本発明をより具体的に
説明する。
【００２０】実施例１ 芯材がポリエステル（融点２３０℃）、鞘材が変性ポリ
エステル（融点１１０℃）の複合繊維を用いて織布を得
、この織布を１５０℃に加熱融着すると共に打抜き加工
して、直径７５ｃｍ、厚さ０．４ｍｍの略円形の非通気
性シート材よりなる上布を製造した。同様にして直径１
６ｃｍ、厚さ０．４ｍｍの非通気性のシート材よりなる
補強布を製造し、この補強布を上布のほぼ中央部分に熱
融着により接合した。
【００２１】別に、上記と同様にして得られた織布を打
抜き加工して、インフレーター挿入口を有する直径７５
ｃｍ、厚さ０．４ｍｍの通気性の下布を製造した。
【００２２】この下布と、前記上布とを重ね合せて、周
縁部同志を１４０℃で加熱圧着することにより熱融着し
て、第１図に示すエアバッグを得た。
【００２３】実施例２ 実施例１で製造した直径７５ｃｍ、厚さ０．４ｍｍの上
布と、複合繊維ではない単一成分型の直径７５ｃｍ、厚
さ０．４ｍｍのポリエステル織布よりなる下布の間に、
外径７５ｃｍ、内径７２ｃｍ、厚さ０．４ｍｍの変性ポ
リエステル熱融着フィルム（融点１１０℃）を挟み、周
縁部を１４０℃で加熱圧着することにより熱融着して、
第１図に示すエアバッグを得た。
【００２４】実施例１及び実施例２で製造されたエアバ
ッグは、いずれも展開性、収納性に富み、その製造は極
めて容易であった。
【００２５】
【発明の効果】以上詳述した通り、本発明のエアバッグ
によれば、展開性、収納性、安全性（乗員の保護性能）
に富むエアバッグが安価に提供される。
【図面の簡単な説明】
【図１】第１図は本発明のエアバッグの一実施例を示す
断面図である。
【図２】第２図は本発明に係る複合繊維の一実施例を示
す断面図である。
【図３】第３図は本発明に係るシート材の一実施例を示
す断面図である。
【図４】第４図は本発明に係る織布の一実施例を示す断
面図である。
【図５】第５図は本発明に係るシート材の一実施例を示
す断面図である。
【符号の説明】
１　　エアバッグ ２　　上布 ３　　下布 ４　　補強布 ５　　芯材 ６　　鞘材料 ７　　複合繊維

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】　　上布及び下布の同縁部同志を接合した
    袋状のエアバッグにおいて、少なくとも上布は、線状の
    芯材と、該芯材に付着した、該芯材よりも低融点の熱可
    塑性ポリマーと、からなる複合繊維を織製して織布とな
    し、且つ前記熱可塑性ポリマー同志を熱融着してなるシ
    ート材で構成されていることを特徴とするエアバッグ。
JP2407989A 1990-12-27 1990-12-27 エアバッグ Pending JPH04228648A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2407989A JPH04228648A (ja) 1990-12-27 1990-12-27 エアバッグ
DE19914142884 DE4142884C2 (de) 1990-12-27 1991-12-23 Airbag
GB9410576A GB2282575B (en) 1990-12-27 1991-12-23 Air bags
GB9127276A GB2252983B (en) 1990-12-27 1991-12-23 Air bags
US08/295,483 US5618595A (en) 1990-12-27 1994-08-25 Air bag
US08/703,790 US5879767A (en) 1990-12-27 1996-08-27 Air bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2407989A JPH04228648A (ja) 1990-12-27 1990-12-27 エアバッグ

Publications (1)

Publication Number Publication Date
JPH04228648A true JPH04228648A (ja) 1992-08-18

Family

ID=18517502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2407989A Pending JPH04228648A (ja) 1990-12-27 1990-12-27 エアバッグ

Country Status (4)

Country Link
US (2) US5618595A (ja)
JP (1) JPH04228648A (ja)
DE (1) DE4142884C2 (ja)
GB (1) GB2252983B (ja)

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* Cited by examiner, † Cited by third party
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JP2003510214A (ja) * 1999-09-24 2003-03-18 ミリケン・アンド・カンパニー 縫製強化継目を含んでなる溶接エアバッグクッション
US11708045B2 (en) 2017-09-29 2023-07-25 Inv Performance Materials, Llc Airbags and methods for production of airbags

Also Published As

Publication number Publication date
DE4142884A1 (de) 1992-07-02
US5618595A (en) 1997-04-08
GB9127276D0 (en) 1992-02-19
US5879767A (en) 1999-03-09
GB2252983A (en) 1992-08-26
GB2252983B (en) 1995-03-29
DE4142884C2 (de) 2003-04-10

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