JP2014193702A - Side airbag - Google Patents

Side airbag Download PDF

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JP2014193702A
JP2014193702A JP2013071414A JP2013071414A JP2014193702A JP 2014193702 A JP2014193702 A JP 2014193702A JP 2013071414 A JP2013071414 A JP 2013071414A JP 2013071414 A JP2013071414 A JP 2013071414A JP 2014193702 A JP2014193702 A JP 2014193702A
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Prior art keywords
airbag
base fabric
facing surface
base cloth
vehicle
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Japanese (ja)
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Yasuhiro Uchida
康洋 内田
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Nihon Plast Co Ltd
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Nihon Plast Co Ltd
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Priority to JP2013071414A priority Critical patent/JP2014193702A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a side airbag in which solved is a possible problem that exhaust port installation position is restricted in a case that an exhaust port for exhausting gas is provided to protect an occupant suitably upon inflation and expansion in a side airbag.SOLUTION: A side airbag includes an occupant-facing surface side base cloth 1, a vehicle-body-facing surface side base cloth 2, and an intermediate part base cloth 3 which connects the occupant-facing surface side base cloth 1 with the vehicle-body-facing surface side base cloth 2, and, in the intermediate part base cloth 3, provided is a protrusion part 4 in which a space is formed by separation of one end part from the other end part in the direction of airbag inflation. A gas exhaust port is formed by providing a lap part 5 in which the other end part of the intermediate part base cloth 3 enters suitably below the protrusion part 4 upon combining an airbag.

Description

本発明は車両の座席側部のドア内に搭載され衝突時等に膨張展開し、主に乗員の側部からの衝撃に対応するサイドエアバッグ装置に関するものである。   The present invention relates to a side airbag device that is mounted in a door on the side of a seat of a vehicle and inflates and deploys at the time of a collision or the like, and mainly responds to an impact from the side of an occupant.

今日、エアバッグ装置は種々の車両に搭載され、運転席用エアバッグ、助手席用エアバッグ、サイドエアバッグ、サイドカーテンエアバッグ、さらに車外用エアバッグなど、搭載される位置、対象とする衝突のモードなども多様化して様々な状況下での乗員の保護を目的としている。
車両のドア内に搭載され、車両側面衝突時等に膨張展開するサイドエアバッグ装置では、乗員に対する好適な保護のために、サイドエアバッグ内のガスの内圧が上がり過ぎないように、排気口を設けられており、ここからガスが排出され、エアバッグの内圧を調整している。
従来技術としては、複数のパネル部を周縁部に沿った接合線で接合し、内部にガスが導入される気室を設けたエアバッグであって、前記接合線により接合されず気室が外側に連通し、前記一方のパネル部の前記周縁部に沿った長さが前記他方のパネル部の前記周縁部に沿った長さよりも大きく設定された排気口を備えたエアバッグ(例えば、特許文献1参照)が存在している。
Today, airbag devices are installed in various vehicles, such as driver airbags, passenger airbags, side airbags, side curtain airbags, and exterior airbags. The purpose of this mode is to diversify the passengers in various situations.
In a side airbag device that is mounted in a vehicle door and inflates and deploys at the time of a vehicle side collision, the exhaust port is set so that the internal pressure of the gas in the side airbag does not rise excessively for the purpose of suitable protection for the passenger. The gas is discharged from here and the internal pressure of the airbag is adjusted.
As a prior art, an air bag in which a plurality of panel portions are joined together by a joining line along a peripheral portion and an air chamber into which gas is introduced is provided, and is not joined by the joining line and the air chamber is outside An airbag including an exhaust port in which a length along the peripheral edge of the one panel portion is set to be larger than a length along the peripheral edge of the other panel portion (for example, Patent Documents) 1) exists.

特開2011−189885号公報(特許請求の範囲の欄、発明の詳細な説明の欄、及び図1〜図5を参照)Japanese Patent Application Laid-Open No. 2011-189885 (see claims, detailed description of the invention, and FIGS. 1 to 5)

従来技術では、排気口から排出されるガスはエアバッグを袋体となす縫着に対して垂直方向への排出となり、排気されるガスが乗員側に流れないようにするために、排気口の設定位置に制限が生じることがある。
また、上記従来技術は、エアバッグを構成する一方の基布に余長部を設けて弛み部を形成し、余長部を備えない他方の基布の外周と合わせて縫製して排気口を形成するものが示されているが、ガスの排気量は余長部の大きさのみで調整されるため、排気量を大きくしようとすると余長部を大きくしなければならず、エアバッグ外形の設計自由度が低下する恐れがある。
また従来は、図3に示すように、サイドエアバッグを構成する各基布の部位に排気口を設けるが、各部位ともガスが高温のため、排気口の設定位置に制限が生じることがある。
本発明は、上記問題点を解決したサイドエアバッグを提供することを目的としている。
In the prior art, the gas exhausted from the exhaust port is exhausted in a direction perpendicular to the sewing that forms the airbag as a bag, and in order to prevent the exhausted gas from flowing to the occupant side, There may be restrictions on the setting position.
In addition, in the above prior art, one base fabric constituting the airbag is provided with a surplus length portion to form a slack portion, and is sewn together with the outer periphery of the other base fabric not having the surplus length portion, so that an exhaust port is formed. What is formed is shown, but the amount of gas displacement is adjusted only by the size of the extra length, so if you want to increase the amount of exhaust, you must increase the extra length, There is a risk that the degree of freedom in design is reduced.
Conventionally, as shown in FIG. 3, exhaust ports are provided in the portions of the respective base fabrics constituting the side airbag. However, since the gas is high in each portion, the setting position of the exhaust ports may be limited. .
An object of the present invention is to provide a side airbag that solves the above problems.

本発明の第1の発明は、請求項1に記載された通りのサイドエアバッグであり、次のようなものである。
乗員対向面側基布と車体対向面側基布と、乗員対向面側基布と車体対向面側基布との間をつなぐ中間部基布とを有し、中間部基布には、一の端部が他の端部からエアバッグの膨張する方向に離間して空間を形成する突出部を設け、エアバッグを結合する際に、中間部基布の他方の端部が突出部の下側に適宜進入するラップ部を設けることによってガス排出口を形成する構成である。
A first aspect of the present invention is a side airbag as set forth in claim 1 and is as follows.
An occupant facing surface base fabric, a vehicle facing surface base fabric, and an intermediate base fabric that connects between the occupant facing surface base fabric and the vehicle facing surface base fabric; When the airbag is joined, the other end of the intermediate base fabric is under the projection when the airbag is connected to the other end. It is the structure which forms a gas exhaust port by providing the lap | wrap part which approachs into the side suitably.

本発明の第2の発明は、請求項2に記載された通りのサイドエアバッグであり、次のようなものである。
請求項1に記載の発明に加えて、前記ガス排出口は、サイドエアバッグの上方に設けられ、さらに前記突出部は、車両後方側、または車両前方側に向いて開口部が設けられている構成である。
A second aspect of the present invention is a side airbag as set forth in claim 2, which is as follows.
In addition to the first aspect of the present invention, the gas discharge port is provided above the side airbag, and the protrusion is provided with an opening toward the vehicle rear side or the vehicle front side. It is a configuration.

本発明に係るサイドエアバッグは、上記説明のような構成を有するので、以下に記載する効果を奏する。
(1)エアバッグ展開時の排出口からのガスの排出を、乗員に排出ガスによる危害を加えることなく行うことができる。
(2)一方の基布端部と他方の基布端部とのラップ量によって容易に排気量の調整が可能であり、排気量を大きく設定したとしても、従来のエアバッグのように外形を変化させる必要がないため、エアバッグ外形の設計自由度が向上する。
(3)一般的な3ピースのエアバッグの縫着方法によって作製可能なため、特別な技術、工程を必要としない。
Since the side airbag according to the present invention has the configuration as described above, the following effects are achieved.
(1) The gas can be discharged from the discharge port when the airbag is deployed without causing the passenger to be harmed by the exhaust gas.
(2) The amount of exhaust can be easily adjusted by the amount of lap between one base fabric end and the other base fabric end, and even if the exhaust amount is set large, the outer shape is similar to a conventional airbag. Since it is not necessary to change, the freedom degree of design of an airbag outer shape improves.
(3) Since it can be produced by a general sewing method of a three-piece airbag, no special technique or process is required.

本発明のサイドエアバッグの一実施例を示すもので、(a)はサイドエアバッグの概略全体斜視図、(b)は中間部基布、及び突出部の一例を示す展開図、(c)は(a)のX部分の詳細示す説明図、(d)は(a)のZ矢視断面図である。1 shows an embodiment of a side airbag according to the present invention, in which (a) is a schematic overall perspective view of a side airbag, (b) is a developed view showing an example of an intermediate base fabric and protrusions, (c). (A) is the explanatory view showing the X portion in detail, (d) is a sectional view taken along the arrow Z in (a). 本発明のサイドエアバッグの一実施例を示すもので、(a)はサイドエアバッグの概略全体斜視図、(b)は中間部基布の一例を示す展開図、(c)は(a)のX部分の詳細示す説明図、(d)は(a)のZ矢視断面図である。1 shows an embodiment of a side airbag according to the present invention, in which (a) is a schematic overall perspective view of a side airbag, (b) is a developed view showing an example of an intermediate base fabric, and (c) is (a). Explanatory drawing which shows the detail of X part of, (d) is Z arrow sectional drawing of (a). 従来のサイドエアバッグの一例であり、各面にエアバッグ内のガス排出口を付けた場合の問題点を示した説明図である。It is an example of a conventional side airbag, and is an explanatory view showing a problem when a gas discharge port in the airbag is attached to each surface.

乗員対向面側基布と車体対向面側基布と、乗員対向面側基布と車体対向面側基布との間をつなぐ中間部基布とを有し、中間部基布には、一の端部が他の端部からエアバッグの膨張する方向に離間して空間を形成する突出部を設け、エアバッグを結合する際に、中間部基布の他方の端部が突出部の下側に適宜進入するラップ部を設けることによってガス排出口を形成するサイドエアバッグである。   An occupant facing surface base fabric, a vehicle facing surface base fabric, and an intermediate base fabric that connects between the occupant facing surface base fabric and the vehicle facing surface base fabric; When the airbag is joined, the other end of the intermediate base fabric is under the projection when the airbag is connected to the other end. It is a side airbag which forms a gas exhaust port by providing the lap | wrap part which approachs into the side suitably.

本発明のサイドエアバッグの一実施例を図面に基づいて説明する。
サイドエアバッグには、エアバッグ内のガスによる内圧が高くなり過ぎないように、排気口が設けられている。
図1は、本発明のサイドエアバッグの一実施例を示すものであり、上記の課題を解決することができるものである。構成としては、乗員対向面側基布1と車体対向面側基布2、中間基布3、突出部4の4つの部位を縫着し、サイドエアバッグを構成するものである。
前記突出部4は、図1(a)に示すような形状をしており、サイドエアバッグを縫着する際、各基布1、2、3と共に突出部4部位の寄付を図1(d)に示すようにア、イ部位で縫着し、袋体にする時に図中c点を頂点としたabcの三角形状を作り出すものである。
この時、三角形状をした突出部4内に中間基布3の各端部が設置されるようにし、前記各端部を重ね合わさずに袋体を縫着し、ガス排出口6を形成する。
なお、中間基布3の各端部は、重ね合わすことによってガスの排出量を少量にすることも可能である。
上記の構成を取ることによって、サイドエアバッグ展開時に、エアバッグ内のガスの内圧が高くなり過ぎないためにガス排気口6から上に向かってガスが排出されるが、突出部4によって、ガスの排出方向を容易に制御することができる。
さらに、そのガス排出口6の端部と突出部4の図中a−bとの距離を取り、ラップ部5を作ることにより、エアバッグが膨張した際、a点、b点に掛かる引っ張り荷重を軽減させることができるものである。
なお、前記中間基布3の各端部の離間長さを変えること(ガス排気口6の大きさを変える)によってガスの排出量を変えることができるが、エアバッグの外形を変えることなくガスの排気量を変えることができるため、設計自由度が格段に増すものである。
An embodiment of a side airbag according to the present invention will be described with reference to the drawings.
The side airbag is provided with an exhaust port so that the internal pressure due to the gas in the airbag does not become too high.
FIG. 1 shows an embodiment of a side airbag according to the present invention, which can solve the above problems. As a configuration, four portions of the occupant-facing surface-side base fabric 1, the vehicle-body-facing surface-side base fabric 2, the intermediate base fabric 3, and the protruding portion 4 are sewn to form a side airbag.
The protruding portion 4 has a shape as shown in FIG. 1A, and when the side airbag is sewn, donations of the protruding portion 4 together with the base fabrics 1, 2, and 3 are shown in FIG. As shown in FIG. 4A, when a bag is sewn at a and b, a triangular shape of abc with the point c in the figure as the apex is created.
At this time, the end portions of the intermediate base fabric 3 are installed in the projecting portion 4 having a triangular shape, and the bag body is sewn without overlapping the end portions to form the gas discharge port 6. .
In addition, it is also possible to make gas discharge | emission amount small by superimposing each edge part of the intermediate | middle base fabric 3 on each other.
By adopting the above configuration, when the side airbag is deployed, gas is discharged upward from the gas exhaust port 6 because the internal pressure of the gas in the airbag does not become too high. The discharge direction can be easily controlled.
Furthermore, the tensile load applied to the points a and b when the airbag is inflated by taking the distance between the end of the gas discharge port 6 and the ab in the drawing of the projecting portion 4 and forming the wrap portion 5. Can be reduced.
Although the gas discharge amount can be changed by changing the separation length of each end portion of the intermediate base fabric 3 (changing the size of the gas exhaust port 6), the gas can be changed without changing the outer shape of the airbag. Since the amount of exhaust can be changed, the degree of freedom of design is greatly increased.

また、他の実施例としては、図2からも理解できるように、中間基布3と突出部4を構成する基布とを別体で構成せずに、中間基布3の一方の端部を突出部4を形成できる形状とすることも考えられる。これは、縫製時にラップ部5の長さを調節することにより、ガス排気口6の大きさを変えることが可能であり、前記実施例と同様の効果を奏しつつ、部品点数を減らすことができ、作業工程の簡易化につながるものである。   As another example, as can be understood from FIG. 2, the intermediate base fabric 3 and the base fabric constituting the projecting portion 4 are not formed separately, but one end portion of the intermediate base fabric 3. It is also conceivable that the shape of the protrusion 4 can be formed. This is because the size of the gas exhaust port 6 can be changed by adjusting the length of the wrap portion 5 during sewing, and the number of parts can be reduced while achieving the same effect as in the previous embodiment. This leads to simplification of the work process.

また、本実施例では突出部4は、エアバッグの上辺中央部に位置しているが、中間基布のどの部分にも設定可能であり、突出部4の開口部の向きも車両前方側、車両後方側など、状況によって選択可能である。   Further, in the present embodiment, the protrusion 4 is located at the center of the upper side of the airbag, but can be set at any part of the intermediate fabric, and the direction of the opening of the protrusion 4 is also the front side of the vehicle, It can be selected depending on the situation such as the vehicle rear side.

各種車両に取り付けられるサイドエアバッグに利用することができる。   It can be used for side airbags attached to various vehicles.

1・・・・乗員対向面側基布
2・・・・車体対向面側基布
3・・・・中間部基布
4・・・・突出部
5・・・・ラップ部
6・・・・ガス排出口
DESCRIPTION OF SYMBOLS 1 ...... Passenger facing surface side base fabric 2 .... Vehicle body facing surface side base fabric 3 .... Intermediate part base fabric 4 .... Projection part 5 .... Wrap part 6 .... Gas outlet

Claims (2)

乗員対向面側基布と車体対向面側基布と、乗員対向面側基布と車体対向面側基布との間をつなぐ中間部基布とを有し、中間部基布には、一の端部が他の端部からエアバッグの膨張する方向に離間して空間を形成する突出部を設け、エアバッグを結合する際に、中間部基布の他方の端部が突出部の下側に適宜進入するラップ部を設けることによってガス排出口を形成することを特徴とするサイドエアバッグ。 An occupant facing surface base fabric, a vehicle facing surface base fabric, and an intermediate base fabric that connects between the occupant facing surface base fabric and the vehicle facing surface base fabric; When the airbag is joined, the other end of the intermediate base fabric is under the projection when the airbag is connected to the other end. A side air bag characterized in that a gas discharge port is formed by providing a lap portion that appropriately enters the side. 前記ガス排出口は、サイドエアバッグの上方に設けられ、さらに前記突出部は、車両後方側、または車両前方側に向いて開口部が設けられていることを特徴とする請求項1に記載のサイドエアバッグ。
The said gas exhaust port is provided above a side airbag, Furthermore, the said protrusion part is provided with the opening part toward the vehicle rear side or the vehicle front side, The Claim 1 characterized by the above-mentioned. Side airbag.
JP2013071414A 2013-03-29 2013-03-29 Side airbag Pending JP2014193702A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016078799A (en) * 2014-10-22 2016-05-16 トヨタ自動車株式会社 Vehicular side-airbag apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016078799A (en) * 2014-10-22 2016-05-16 トヨタ自動車株式会社 Vehicular side-airbag apparatus

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