JPH05319191A - Manufacture of air bag for vehicle - Google Patents

Manufacture of air bag for vehicle

Info

Publication number
JPH05319191A
JPH05319191A JP4158786A JP15878692A JPH05319191A JP H05319191 A JPH05319191 A JP H05319191A JP 4158786 A JP4158786 A JP 4158786A JP 15878692 A JP15878692 A JP 15878692A JP H05319191 A JPH05319191 A JP H05319191A
Authority
JP
Japan
Prior art keywords
airbag
engaging surface
air bag
vehicle
bodies
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.)
Withdrawn
Application number
JP4158786A
Other languages
Japanese (ja)
Inventor
Shigeyoshi Fukushima
繁義 福島
Toru Ozaki
徹 尾崎
Hidehito Sogi
秀仁 曽木
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.)
Toyo Tire Corp
Original Assignee
Toyo Tire and Rubber Co Ltd
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 Toyo Tire and Rubber Co Ltd filed Critical Toyo Tire and Rubber Co Ltd
Priority to JP4158786A priority Critical patent/JPH05319191A/en
Publication of JPH05319191A publication Critical patent/JPH05319191A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE:To improve the yield obtained from an original cloth at an engagement surface part including a strip shaped body. CONSTITUTION:An air bag is formed to a strap 11 for regulating the expansion shape by radially extending a plurality of strip shaped bodies 9 from the engagement surface parts 3 and 6 which are seamed with the base part and top part of the air bag, respectively. Since at least one of the engagement surface parts 3 and 6 of the air bag is constituted of a plurality of divided bodies K1...K1 having one or two strip shaped bodies 9, each divided body can be cut in the arragement having the high yield from an original cloth.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は車両に装備し、車両の衝
突事故の際に自動的に膨張し、乗員を保護するエアバッ
グ装置に係り、詳しくは該エアバッグの膨張形状を規制
するストラップを中心としたエアバッグの製造方法に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag device which is mounted on a vehicle and automatically inflates in the event of a vehicle collision to protect an occupant. The present invention relates to a method for manufacturing an air bag.

【0002】[0002]

【従来の技術】エアバッグ装置は、車両が衝突した時、
衝撃が所定以上である場合に、シートベルトの補助とし
て瞬時にバッグが膨張し、乗員を保護する安全装置であ
り、通常、ガス発生器であるインフレータと、インフレ
ータのガスにより膨張するバッグと、前記インフレータ
を該バッグと共に略気密に囲繞収納するエアバッグケー
スとで構成されている。そして、このエアバッグ装置
は、インフレータから噴出された噴出ガスがエアバッグ
ケースとエアバッグ内に充満して内圧を発し、この内圧
によりバッグが膨張する。
2. Description of the Related Art An air bag system is used when a vehicle collides.
When the impact is more than a predetermined value, the bag is inflated instantly as an aid to the seat belt, which is a safety device for protecting the occupant, and is usually a gas generator, an inflator, and a bag inflated by the gas of the inflator, The airbag case is configured to enclose the inflator and the bag in a substantially airtight manner. In this airbag device, the gas ejected from the inflator fills the airbag case and the airbag to generate an internal pressure, and the internal pressure inflates the bag.

【0003】ところで、エアバッグの膨張初期において
は、該バッグはインフレータからの噴出ガスによってそ
の噴出方向、即ち乗員の方向に1次的に大きく伸張する
ため、上下左右方向の膨らみが遅れるという問題があ
る。そこで、このようなガス噴出方向へのバッグの伸張
を制限すべく、エアバッグの内側頂部付近と内側基部付
近とに亘らせてバッグの伸張を規制するストラップが設
けられることが多い。
By the way, in the initial stage of inflation of the airbag, the airbag is primarily expanded by the gas ejected from the inflator in the ejection direction thereof, that is, in the direction of the occupant, so that the inflation in the vertical and horizontal directions is delayed. is there. Therefore, in order to limit the expansion of the bag in such a gas ejection direction, a strap that restricts the expansion of the bag is often provided over the vicinity of the inner top and the vicinity of the inner base of the airbag.

【0004】その構造は例えば図8に示す通りであり、
ストラップ(11)は、膨出形状におけるエアバッグ
(1)の内側頂部付近と内側基部付近とに夫々取着した
係合面部(3),(6)の夫々の一部を一体に延出して
帯状体(9)…(9)を設け、これら帯状体(9)…
(9)の端部を対向する係合面部の帯状体(9)…
(9)の端部と縫合することにより形成されている。
Its structure is, for example, as shown in FIG.
The strap (11) integrally extends a part of each of the engaging surface portions (3) and (6) attached to the vicinity of the inner top and the vicinity of the inner base of the airbag (1) in the bulging shape. The strips (9) ... (9) are provided, and these strips (9) ...
The strip-shaped body (9) of the engaging surface portion that opposes the end portion of (9) ...
It is formed by stitching with the end of (9).

【0005】[0005]

【発明が解決しようとする課題】ところが、上記ストラ
ップにあっては、該ストラップを構成する帯状体とエア
バッグに縫着される係合面部とが一体に形成されること
から、帯状体の縫合箇所は1箇所で済むとの利点を有す
る反面、部材の原反からの裁断の面においては、帯状体
が上記係合面部から放射状に突出していることから極め
て歩留りが悪いとの欠点を有している。
However, in the above-mentioned strap, since the belt-shaped body that constitutes the strap and the engaging surface portion that is sewn to the airbag are integrally formed, the belt-shaped body is sewn. On the other hand, it has the advantage that only one place is required, but on the face of cutting the member from the original fabric, it has a drawback that the yield is extremely poor because the band-shaped body projects radially from the engaging surface portion. ing.

【0006】本発明は叙上の如き実状に対処し、上記帯
状体を一体に有する係合面部に新規な構造を見出すこと
により、該係合面部の裁断時における原反からの歩留り
を向上させることを目的とするものである。
The present invention addresses the above situation and finds a new structure in the engaging surface portion integrally having the above-mentioned belt-like body, thereby improving the yield from the original fabric at the time of cutting the engaging surface portion. The purpose is that.

【0007】[0007]

【課題を解決するための手段】即ち、上記目的に適合す
る本発明エアバッグの製造方法の特徴は、膨張形状にお
けるエアバッグの内側頂部付近と内側基部付近とに取着
した係合面部の夫々の一部を放射状に延出して複数の帯
状体を設けると共に、これら帯状体端部を対向する係合
面部の帯状体端部と縫合することによりエアバッグの膨
張形状を規制するストラップを形成せしめた車両用エア
バッグにおいて、上記頂部側と基部側の少なくとも一方
の係合面部を、各々が1本または2本の帯状体を有する
複数の分割体にて構成せしめるところにある。
That is, the feature of the method of manufacturing an airbag of the present invention which meets the above object is that the engaging surface portions attached to the vicinity of the inner top portion and the vicinity of the inner base portion of the airbag in the inflated shape are respectively attached. A part of the belt is extended radially to provide a plurality of strips, and the ends of the strips are sewn to the ends of the strips of the engaging surface portions that face each other to form a strap that regulates the inflation shape of the airbag. In the vehicle airbag, at least one of the engaging surface portions on the top portion side and the base portion side is constituted by a plurality of divided bodies each having one or two strip-shaped bodies.

【0008】[0008]

【作用】上記の如く係合面部を構成することによって、
前記従来通りに帯状部の縫合の利点を残しながらも、該
係合面部、即ち、ストラップ構成部材の原反からの裁断
歩留りを向上させることが可能となる。
By configuring the engaging surface portion as described above,
It is possible to improve the cutting yield of the engaging surface portion, that is, the strap component member from the original fabric, while leaving the advantage of the band-shaped portion sutured as in the conventional case.

【0009】[0009]

【実施例】以下、さらに添付図面を参照して、本発明の
エアバッグ製造方法の実施例を説明する。
Embodiments of the airbag manufacturing method of the present invention will be described below with reference to the accompanying drawings.

【0010】図1は本発明実施例の製造方法によって製
造した運転席用エアバッグを裏返した斜視図、図4は同
エアバッグの断面図、図5は同エアバッグの斜視図であ
り、図4,図5は共にエアバッグの膨張形状を示してい
る。
FIG. 1 is a perspective view in which a driver airbag manufactured by the manufacturing method according to the embodiment of the present invention is turned upside down, FIG. 4 is a sectional view of the airbag, and FIG. 5 is a perspective view of the airbag. 4 and 5 both show the inflated shape of the airbag.

【0011】このエアバッグは図4に示す如く、バッグ
本体(1)の内側頂部(2)付近には係合面部(3),
及び補強布(4)が、また内側基部(5)付近にはもう
1枚の係合面部(6)と補強布(7),(8)とが夫々
縫着されている。そして、上記係合面部(3),(6)
には、図1に示す如くその周縁部4箇所が夫々、該係合
面部(3),(6)と同一の1枚布で一体に帯状に延出
されて、4本ずつの帯状体(9)…(9)が形成されて
いる。この帯状体(9)…(9)は図1に示す如く、互
いに対向する係合面部(3),(6)のもの同士がその
端部(10)…(10)を縫合されて、インフレータ
(図示せず)からのガス噴出方向へのエアバッグ本体
(1)の伸張を制限するストラップ(11)…(11)
に形成されている。
As shown in FIG. 4, this airbag has an engaging surface portion (3) near the inner top portion (2) of the bag body (1).
Further, the reinforcing cloth (4) is sewn to the inner base portion (5), and the other engaging surface portion (6) and the reinforcing cloths (7) and (8) are sewn to each other. Then, the engaging surface portions (3), (6)
As shown in FIG. 1, four peripheral portions thereof are integrally stretched in a strip shape with the same single cloth as the engaging surface portions (3) and (6) to form four strip-shaped bodies ( 9) ... (9) are formed. As shown in FIG. 1, the belt-shaped bodies (9) ... (9) have engaging surface portions (3), (6) facing each other, and their end portions (10) ... (10) are sewn together to form an inflator. Straps (11) ... (11) that limit the extension of the airbag body (1) in the direction of gas ejection from (not shown).
Is formed in.

【0012】このエアバッグは、基部(5)にインフレ
ータが取着されて車両のハンドルの中心部に折り畳み収
納される。そして、走行中の車両が衝突したとき、衝撃
が所定以上である場合に、電気信号等によりインフレー
タからガスが噴出して瞬時にこのエアバッグが膨張し運
転者を保護する。この場合、エアバッグはインフレータ
からの噴出ガスにより、1次的に運転者の方向に伸張し
ようとするが、エアバッグ内部に設けられたストラップ
(11)…(11)が前述の通りこの動きを規制する。
In the airbag, an inflator is attached to a base portion (5), and the airbag is folded and stored in a central portion of a steering wheel of a vehicle. Then, when a running vehicle collides with the vehicle, if the impact is more than a predetermined value, gas is ejected from the inflator by an electric signal or the like and the airbag is instantly inflated to protect the driver. In this case, the airbag tends to expand in the driver's direction primarily due to the gas ejected from the inflator, but the straps (11) ... (11) provided inside the airbag move as described above. regulate.

【0013】一方、本発明のエアバッグの製造方法は、
かかる帯状体(9)…(9)を含む係合面部(3),
(6)の作成時に係るもので、図2または図3にその詳
細を示す。即ち、本発明方法では、係合面部(3),
(6)を、図2に示す如く、各々が1本の帯状体(9)
を有する4個の分割体(K1 ) …(K1 ) にて構成する
か、あるいは図3に示す如く、各々が2本の帯状体
(9),(9)を有する2個の分割体(K2 ) ,
(K2 ) にて構成するかしている。これら各分割体(K
1 ) ,(K2 ) は、図示の如く、夫々に正規の係合面部
(3),(6)を形成すべく配設されてエアバッグ基布
に縫着されている。なお、この実施例では、各分割体同
士は、その境界において直接的には縫合されていない。
On the other hand, the method of manufacturing an airbag according to the present invention is
An engagement surface portion (3) including the strips (9) ... (9),
This is related to the preparation of (6), and details thereof are shown in FIG. 2 or FIG. That is, in the method of the present invention, the engaging surface portions (3),
As shown in FIG. 2, (6) is a strip (9).
4 divided bodies (K 1 ) ... (K 1 ), or two divided bodies each having two strips (9) and (9) as shown in FIG. (K 2 ),
It is configured with (K 2 ). Each of these divisions (K
1 ) and (K 2 ) are arranged so as to form regular engaging surface portions (3) and (6), respectively, and are sewn to the airbag base cloth, as shown in the figure. In addition, in this embodiment, the divided bodies are not directly sewn at their boundaries.

【0014】しかして、本発明方法によれば、上記の如
く係合面部(3),(6)を分割体(K1 ) ,(K2 )
にて構成することから、図6に示すように各分割体(K
1 )…(K1 ) を、原反(S)から歩留りの良い配置に
て裁断することができる。具体的には、図6に示す如き
本発明実施例によれば、図7に示す従来の係合面部
(3),(6)のものより約20%取れ高を向上させる
ことが可能である。
However, according to the method of the present invention, the engaging surfaces (3) and (6) are divided into the divided bodies (K 1 ) and (K 2 ) as described above.
As shown in FIG. 6, each divided body (K
1 ) ... (K 1 ) can be cut from the original sheet (S) in an arrangement with good yield. Specifically, according to the embodiment of the present invention as shown in FIG. 6, it is possible to improve the take-off height by about 20% as compared with the conventional engaging surface portions (3) and (6) shown in FIG. ..

【0015】以上、本発明の実施例について説明した
が、ストラップを構成する帯状体(9)…(9)は4本
に限定するものではなく、また、係合面部(3),
(6)の分割体(K1 ) ,(K2 ) が具備する帯状体
(9)の数は、実施例に示したように各分割体において
1本または2本とすることが、裁断歩留りの向上の面か
ら適当であるといえる。さらに、分割体(K1 ) ,(K
2 ) にて構成する係合面部は、頂部側あるいは基部側の
何れか一方にすることも可能である。
Although the embodiments of the present invention have been described above, the number of strips (9) ... (9) forming the strap is not limited to four, and the engaging surface portions (3),
The number of the strips (9) included in the divided bodies (K 1 ) and (K 2 ) of (6) is 1 or 2 in each divided body as shown in the embodiment. It can be said that it is appropriate from the standpoint of improving. Further, the division bodies (K 1 ) and (K
The engaging surface portion configured in 2 ) can be either the top side or the base side.

【0016】[0016]

【発明の効果】以上説明したように、本発明のエアバッ
グの製造方法は、エアバッグの基部付近と頂部付近に夫
々縫着される係合面部から複数の帯状体を放射状に延出
せしめて膨出形状規制用のストラップを形成したエアバ
ッグにおいて、上記係合面部の少なくとも一方を、各々
が1本または2本の帯状体を有する複数の分割体にて構
成せしめるものであり、従来では放射状に突出する帯状
体によって低下していた係合面部裁断時の歩留りを、係
合面部を上記の如く分割体にて構成することによって大
幅に向上させ、エアバッグのコストダウンと省資源とを
同時に達成するとの顕著な実効を奏するものである。
As described above, according to the method of manufacturing an airbag of the present invention, a plurality of belt-like bodies are radially extended from the engaging surface portions sewn near the base portion and the top portion of the airbag to expand the airbag. In an airbag formed with a strap for restricting the shape of protrusion, at least one of the engaging surface portions is constituted by a plurality of divided bodies each having one or two belt-shaped bodies, and is conventionally radial. The yield at the time of cutting the engaging surface portion, which was reduced by the protruding belt-like body, is significantly improved by configuring the engaging surface portion by the divided body as described above, and at the same time, the airbag cost reduction and resource saving are achieved. Then, it has a remarkable effect.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明実施例の方法によって作成したエアバッ
グを裏返した状態を示す斜視図である。
FIG. 1 is a perspective view showing a state in which an airbag produced by a method according to an embodiment of the present invention is turned upside down.

【図2】本発明方法による係合面部の分割例を示す平面
図である。
FIG. 2 is a plan view showing an example of division of an engaging surface portion according to the method of the present invention.

【図3】本発明方法による係合面部の他の分割例を示す
平面図である。
FIG. 3 is a plan view showing another example of division of the engaging surface portion according to the method of the present invention.

【図4】図1に示すエアバッグの断面図である。FIG. 4 is a sectional view of the airbag shown in FIG.

【図5】同斜視図である。FIG. 5 is a perspective view of the same.

【図6】本発明実施例方法による係合面部の裁断例を示
す平面図である。
FIG. 6 is a plan view showing an example of cutting the engaging surface portion according to the method of the embodiment of the present invention.

【図7】従来の係合面部の裁断例を示す平面図である。FIG. 7 is a plan view showing an example of cutting a conventional engaging surface portion.

【図8】従来のエアバッグを裏返した状態を示す斜視図
である。
FIG. 8 is a perspective view showing a state in which a conventional airbag is turned upside down.

【符号の説明】[Explanation of symbols]

(1) エアバッグ本体 (2) 内側頂部 (3)(6) 係合面部 (4)(7)(8)補強布 (5) 内側基部 (9) 帯状体 (10) 端部 (11) ストラップ (K1 ) (K2 ) 分割体(1) Airbag body (2) Inner top (3) (6) Engagement surface (4) (7) (8) Reinforcing cloth (5) Inner base (9) Belt (10) End (11) Strap (K 1 ) (K 2 ) Split body

───────────────────────────────────────────────────── フロントページの続き (72)発明者 曽木 秀仁 愛知県西加茂郡三好町大字打越字生賀山3 番地 東洋ゴム工業株式会社自動車部品技 術センター内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidehito Sogi 3rd Ikuyama, Uchikoshi, Miyoshi-cho, Nishikamo-gun, Aichi Toyo Tire & Rubber Co., Ltd. Automotive Parts Technology Center

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 膨張形状におけるエアバッグの内側頂部
付近と内側基部付近とに取着した係合面部の夫々の一部
を放射状に延出して複数の帯状体を設けると共に、これ
ら帯状体端部を対向する係合面部の帯状体端部と縫合す
ることによりエアバッグの膨張形状を規制するストラッ
プを形成せしめた車両用エアバッグにおいて、上記頂部
側と基部側の少なくとも一方の係合面部を、各々が1本
または2本の帯状体を有する複数の分割体にて構成せし
めることを特徴とする車両用エアバッグの製造方法。
1. A plurality of strip-shaped bodies are provided by radially extending a part of each of the engaging surface portions attached to the vicinity of the inner top portion and the vicinity of the inner base portion of the airbag in an inflated form, and end portions of these strip-shaped bodies are provided. In a vehicle airbag in which a strap for restricting the inflation shape of the airbag is sewn with the end portions of the belt-shaped body of the opposing engaging surface portions, at least one of the engaging surface portions on the top side and the base side, A method of manufacturing an airbag for a vehicle, characterized by comprising a plurality of divided bodies each having one or two strips.
JP4158786A 1992-05-25 1992-05-25 Manufacture of air bag for vehicle Withdrawn JPH05319191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4158786A JPH05319191A (en) 1992-05-25 1992-05-25 Manufacture of air bag for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4158786A JPH05319191A (en) 1992-05-25 1992-05-25 Manufacture of air bag for vehicle

Publications (1)

Publication Number Publication Date
JPH05319191A true JPH05319191A (en) 1993-12-03

Family

ID=15679311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4158786A Withdrawn JPH05319191A (en) 1992-05-25 1992-05-25 Manufacture of air bag for vehicle

Country Status (1)

Country Link
JP (1) JPH05319191A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6315324B1 (en) * 2000-04-14 2001-11-13 Milliken & Company Air bag tether construction
US6783155B2 (en) 2000-04-14 2004-08-31 Milliken & Company Air bag tether construction
KR20050021195A (en) * 2003-08-26 2005-03-07 현대모비스 주식회사 a cushion cover of driver side air bag module for vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6315324B1 (en) * 2000-04-14 2001-11-13 Milliken & Company Air bag tether construction
US6783155B2 (en) 2000-04-14 2004-08-31 Milliken & Company Air bag tether construction
KR20050021195A (en) * 2003-08-26 2005-03-07 현대모비스 주식회사 a cushion cover of driver side air bag module for vehicles

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