JP5611664B2 - Side airbag device for automobile - Google Patents

Side airbag device for automobile Download PDF

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JP5611664B2
JP5611664B2 JP2010114273A JP2010114273A JP5611664B2 JP 5611664 B2 JP5611664 B2 JP 5611664B2 JP 2010114273 A JP2010114273 A JP 2010114273A JP 2010114273 A JP2010114273 A JP 2010114273A JP 5611664 B2 JP5611664 B2 JP 5611664B2
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airbag device
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寛行 岩本
寛行 岩本
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Nihon Plast Co Ltd
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Nihon Plast Co Ltd
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Description

本発明は、自動車用サイドエアバッグ装置、特に、自車の側方に他車による衝突或いは自車の側部がガードレールなどに衝突（以下、これらを単に側突という。）することにより、所定値以上の衝撃が自車の車体側部に加わった時に、車体側部と車室内に配置されたシートとの間で膨張展開可能な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 for an automobile, and in particular, a collision caused by another vehicle on the side of the own vehicle or a side portion of the own vehicle collides with a guard rail or the like (hereinafter simply referred to as a side collision). The present invention relates to a side airbag device that can be inflated and deployed between a vehicle body side portion and a seat disposed in the vehicle interior when an impact exceeding the value is applied to the vehicle body side portion of the host vehicle.

従来の自動車用サイドエアバッグ装置は、バッグ本体の膨張展開状態で、乗員の肩部に相応する位置である上部区画室と、乗員の腰部に相応する位置である下部区画室と、乗員の胸部に相応する位置であり且つ前記上部区画室及び下部区画室の間に配される中間区画室とよりなり、中間区画室の膨出を規制するシームを設け、このシームにより、エアバッグの膨張展開時に、前記上部区画室及び下部区画室の膨張量、車体側部よりの張り出し量が中間区画室のそれよりも大きくなるように構成してなり、まず乗員を室内側に移動させることで、衝撃を効果的に吸収することが出来るもの（先行技術文献１）が、従来技術として知られている。   A conventional automobile side airbag device includes an upper compartment that is in a position corresponding to the shoulder of an occupant, a lower compartment that is in a position corresponding to an occupant's waist, and an occupant's chest in an inflated and deployed state of the bag body. And an intermediate compartment disposed between the upper compartment and the lower compartment, and a seam for restricting the expansion of the intermediate compartment is provided. By this seam, the airbag is inflated and deployed. Sometimes, the expansion amount of the upper compartment and the lower compartment, and the amount of overhang from the side of the vehicle body are larger than that of the intermediate compartment. Is known as the prior art (Prior Art Document 1).

特許第４０３６０３８号Patent No. 4036038

しかしながら、かかる従来技術は、側突時に、衝撃エネルギーが、乗員の胸に真横から真っ直ぐに加わわることにより、比較的短時間で胸変位値を悪化させてしまい、早期に最大到達点に至るおそれがある。   However, such a conventional technique may cause the chest displacement value to deteriorate in a relatively short time due to impact energy being applied straight from the side to the occupant's chest during a side collision, and may reach the maximum point early. There is.

上記の課題を解決するために、本発明は、胸変位の上昇曲線が緩勾配で、最大到達点に至る所要時間も長く、数値も低い値となる自動車用サイドエアバッグ装置を提供するものである。   In order to solve the above problems, the present invention provides an automobile side airbag device in which the rising curve of chest displacement is a gentle slope, the time required to reach the maximum point is long, and the numerical value is also low. is there.

上記の課題を解決するために、本発明の請求項１記載の自動車用サイドエアバッグ装置は、車体に固定されてなるインフレータと、前記車体に配され且つ前記インフレータより噴出したガスにより室内側壁及び乗員相当位置の最も前記室内側壁側の間で膨張展開可能なバッグ本体とより構成されてなり、前記バッグ本体は、膨張展開状態で、乗員の胸部相応位置へ向けて斜め方向から乗員へ圧接可能なる前方部及び後方部とにより平面視で略Ｖ字状をなすように形成してなることを特徴とする。   In order to solve the above-described problems, an automobile side airbag device according to claim 1 of the present invention includes an inflator fixed to a vehicle body, an indoor side wall and a gas that is disposed on the vehicle body and is ejected from the inflator. It is composed of a bag body that can be inflated and deployed between the indoor side walls at the position corresponding to the occupant, and the bag body can be in pressure contact with the occupant from an oblique direction toward the position corresponding to the chest of the occupant in the inflated and deployed state. The front portion and the rear portion are formed so as to form a substantially V shape in plan view.

また、本発明の請求項２記載の自動車用サイドエアバッグ装置は、請求項１記載の前記バッグ本体の膨張展開状態で、乗員の肩部に相応する位置である上部区画室と、乗員の腰部に相応する位置である下部区画室と、乗員の胸部に相応する位置であり且つ前記上部区画室及び下部区画室の間に配される中間区画室とよりバッグ本体がなることを特徴とする。   According to a second aspect of the present invention, there is provided a side airbag device for an automobile, wherein the bag body according to the first aspect of the present invention is in an inflated and deployed state, an upper compartment which is a position corresponding to the shoulder of the occupant, and an occupant's waist. The bag body is composed of a lower compartment which is a position corresponding to the above and an intermediate compartment which is a position corresponding to the chest of the occupant and is disposed between the upper compartment and the lower compartment.

また、本発明の請求項３記載の自動車用サイドエアバッグ装置は、請求項２記載の前記上部区画室及び下部区画室の前後端部を連結部材により連結してなることを特徴とする。   According to a third aspect of the present invention, there is provided a side airbag device for an automobile, wherein front and rear ends of the upper compartment and the lower compartment are connected by a connecting member.

請求項１記載の発明によれば、前記バッグ本体は、膨張展開状態で、乗員の胸部相応位置へ向けて斜め方向から乗員へ圧接可能なる前方部及び後方部とにより平面視で略Ｖ字状をなすように形成してなるため、胸変位の上昇曲線が緩勾配で、最大到達点に至る所要時間も長く、数値も低い値となる、などの効果を奏する。   According to the first aspect of the present invention, the bag body is substantially V-shaped in a plan view by a front portion and a rear portion that can be pressed against the occupant from an oblique direction toward an occupant's chest position in an inflated and deployed state. As a result, the increase curve of the chest displacement has a gentle slope, the required time to reach the maximum point is long, and the numerical value is also low.

また、請求項２記載の発明によれば、前記バッグ本体の膨張展開状態で、乗員の肩部に相応する位置である上部区画室と、乗員の腰部に相応する位置である下部区画室と、乗員の胸部に相応する位置であり且つ前記上部区画室及び下部区画室の間に配される中間区画室とよりバッグ本体がなるため、上部区画室、中間区画室、下部区画室を胸変位の上昇曲線が緩勾配で、最大到達点に至る所要時間も長く、数値も低い値となるように、最も好ましい区画室を適宜選択できることになる、という効果を奏する。   According to the invention of claim 2, in the inflated and deployed state of the bag body, an upper compartment that is a position corresponding to the shoulder of the occupant, and a lower compartment that is a position corresponding to the waist of the occupant, Since the bag body is made up of an intermediate compartment located between the upper compartment and the lower compartment, and corresponding to the chest of the occupant, the upper compartment, the intermediate compartment, and the lower compartment are There is an effect that the most preferable compartment can be appropriately selected so that the rising curve has a gentle slope, the time required to reach the maximum reaching point is long, and the numerical value is also low.

また、請求項３記載の発明によれば、前記上部区画室及び下部区画室の前後端部を連結部材により連結してなるため、平面視で略Ｖ字状を確実になすことができる、という効果を奏する。   According to the invention described in claim 3, since the front and rear end portions of the upper compartment and the lower compartment are connected by a connecting member, it is possible to reliably form a substantially V shape in plan view. There is an effect.

本発明の実施例１に係る自動車用サイドエアバッグ装置を搭載した座席の分解斜視図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a seat equipped with an automobile side airbag device according to Embodiment 1 of the present invention. 図１の自動車用サイドエアバッグ装置のバッグ本体の膨張過程を示す平面図。The top view which shows the expansion | swelling process of the bag main body of the side airbag apparatus for motor vehicles of FIG. 図２の膨張展開後のバッグ本体と乗員の胸部相応位置との横断面を示した断面図。Sectional drawing which showed the cross section of the bag main body after expansion | swelling expansion | deployment of FIG. 2, and a passenger | crew's chest corresponding position. 図１乃至図３のバッグ本体による胸部変位等を示すデータ図。The data figure which shows the chest displacement etc. by the bag main body of FIG. 本発明の実施例２に係る自動車用サイドエアバッグ装置の膨張展開後のバッグ本体を室内側から見た説明図。Explanatory drawing which looked at the bag main body after the expansion | deployment deployment of the side airbag apparatus for motor vehicles based on Example 2 of this invention from the indoor side.

以下、本発明の実施の形態について、詳細に説明する。本発明において、胸変位の上昇曲線が緩勾配で、最大到達点に至る所要時間も長く、数値も低い値となる自動車用サイドエアバッグ装置を提供するという目的を、インフレータと、前記室内側壁に配され且つ前記インフレータより噴出したガスにより前記室内側壁及び乗員相当位置の最も前記室内側壁側の間で膨張展開可能なバッグ本体とより構成されてなり、前記バッグ本体は、膨張展開状態で、乗員の胸部へ向けて斜め方向から乗員へ圧接可能なる前方部及び後方部とにより平面視で略Ｖ字状をなすように形成してなることで、実現した。以下、本発明の実施例を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described in detail. An object of the present invention is to provide an automobile side airbag device in which the rising curve of chest displacement is a gentle slope, the time required to reach the maximum point is long, and the numerical value is low. And a bag body that can be inflated and deployed between the interior side wall and the interior side wall at a position corresponding to an occupant by a gas ejected from the inflator, and the bag body is in an inflated and deployed state. This is realized by forming the front part and the rear part that can be pressed against the occupant from an oblique direction toward the chest, so as to form a substantially V shape in plan view. Embodiments of the present invention will be described below with reference to the drawings.

本発明の実施例１に係る構造を、図１〜図４を用いて説明する。この実施例１の自動車用サイドエアバッグ装置１は、「車体」であるシートバック２のサイドフレーム２ａにボルト３ａにより固定されてなるインフレータ３と、前記シートバック２に配され且つ前記インフレータ３より噴出したガスＧにより「室内側壁」であるドアトリム４（図３参照）及び乗員Ｍの相当位置の最も前記ドアトリム４側の間の空間５内に膨張展開可能なバッグ本体６とより構成されてなる。尚、符号２ｂ、２ｃは、前記サイドフレーム２ａの上端部及び下端部に結合したアッパフレーム及びロアフレームである。前記ボルト３ａは、筒型のインフレータ３を包むブラケット３ｂ，３ｂによりサイドフレーム２ａに固定している。   A structure according to the first embodiment of the present invention will be described with reference to FIGS. The vehicle side airbag device 1 according to the first embodiment includes an inflator 3 that is fixed to a side frame 2 a of a seat back 2 that is a “vehicle body” by bolts 3 a, and an inflator 3 that is disposed on the seat back 2 and that is provided by the inflator 3. It is composed of a door trim 4 (see FIG. 3) which is an “inside wall” and a bag main body 6 which can be inflated and deployed in a space 5 between the door trim 4 side of the corresponding position of the occupant M by the jetted gas G. . Reference numerals 2b and 2c denote an upper frame and a lower frame coupled to the upper end and the lower end of the side frame 2a. The bolt 3a is fixed to the side frame 2a by brackets 3b and 3b enclosing the tubular inflator 3.

前記バッグ本体６は、図３に示す膨張展開状態で、側突により乗員Ｍに掛かる変位方向７に対して、乗員Ｍの胸部相応位置Ｍａへ向けて前斜め方向８側及び後ろ斜め方向９側から乗員Ｍへ圧接可能なる前方部６ａ及び後方部６ｂとにより、乗員Ｍ側が平面視で略Ｖ字状をなすように形成してなる。前方部６ａは、ロール折りをし、後方部６ｂは、蛇腹折り又はアリゲータ折りをしている。   In the inflated and deployed state shown in FIG. 3, the bag body 6 has a front diagonal direction 8 side and a rear diagonal direction 9 side toward the chest corresponding position Ma of the occupant M with respect to the displacement direction 7 applied to the occupant M due to a side collision. The front portion 6a and the rear portion 6b that can be pressed against the occupant M are formed so that the occupant M side is substantially V-shaped in a plan view. The front part 6a is roll-folded, and the rear part 6b is bellows-folded or alligator-folded.

前記バッグ本体６は、図２（ａ）から（ｂ）に示すように、インフレータ３から噴射されたガスＧにより前記後方部６ｂがまず膨張する。次いで、図２（ｂ）から（ｃ）に示すように、後方部６ｂと前方部６ａを隔てている隔壁１０の貫通孔１０ａを介して前方部６ａが膨張する。この際、図２（ｃ）に示すように、前方部６ａと後方部６ｂとの乗員Ｍ側の面が略Ｖ字状に形成される。   As shown in FIGS. 2A to 2B, the rear portion 6b of the bag body 6 is first expanded by the gas G injected from the inflator 3. Next, as shown in FIGS. 2B to 2C, the front portion 6a expands through the through hole 10a of the partition wall 10 separating the rear portion 6b and the front portion 6a. At this time, as shown in FIG. 2 (c), the surface on the occupant M side of the front portion 6a and the rear portion 6b is formed in a substantially V-shape.

前記バッグ本体６の膨張展開状態で、前記バッグ本体６が、乗員Ｍの肩部に相応する位置である上部区画室１１と、乗員の腰部に相応する位置である下部区画室１３と、乗員Ｍの胸部相応位置Ｍａであり且つ前記上部区画室１１及び下部区画室１３の間に配される中間区画室１２とよりなる。該中間区画室１２については、前記前斜め方向８側及び後ろ斜め方向９側からのバッグ反力の働く角度を変えて、撓み方向を避けると、乗員Ｍの胸部相応位置Ｍａの変位を下げることが出来る。   When the bag body 6 is inflated and deployed, the bag body 6 has an upper compartment 11 in a position corresponding to the shoulder of the occupant M, a lower compartment 13 in a position corresponding to the waist of the occupant, and the occupant M. And an intermediate compartment 12 disposed between the upper compartment 11 and the lower compartment 13. With respect to the intermediate compartment 12, by changing the working angle of the bag reaction force from the front diagonal direction 8 side and the rear diagonal direction 9 side to avoid the bending direction, the displacement of the chest corresponding position Ma of the occupant M is lowered. I can do it.

従って、本実施例１によれば、前記バッグ本体６は、膨張展開状態で、乗員Ｍの胸部相応位置Ｍａへ向けて斜め方向から乗員Ｍへ圧接可能なる前方部６ａ及び後方部６ｂとにより平面視で略Ｖ字状をなすように形成してなるため、図４に示すように、従来の胸部変位１５に対して、本発明の胸部変位１６は、胸部相応位置Ｍａの変位の上昇曲線が緩勾配で、最大到達点に至る所要時間も長く、数値も低い値となる、などの効果を奏する。図４の変位１４はドアの変位である。   Therefore, according to the first embodiment, the bag body 6 is flattened by the front portion 6a and the rear portion 6b that can be pressed against the occupant M from an oblique direction toward the chest corresponding position Ma of the occupant M in the inflated and deployed state. As shown in FIG. 4, the chest displacement 16 of the present invention has a displacement rising curve at the chest corresponding position Ma as compared to the conventional chest displacement 15, as shown in FIG. With a gentle slope, the time required to reach the maximum point is long and the numerical value is low. The displacement 14 in FIG. 4 is a door displacement.

また、前記バッグ本体６の膨張展開状態で、乗員Ｍの肩部に相応する位置である上部区画室１１と、乗員Ｍの腰部に相応する位置である下部区画室１３と、乗員Ｍの胸部相応位置Ｍａであり且つ前記上部区画室１１及び下部区画室１３の間に配される中間区画室１２とよりバッグ本体６がなるため、上部区画室１１、中間区画室１２、下部区画室１３を胸変位の上昇曲線が緩勾配で、最大到達点に至る所要時間も長く、数値も低い値となるように、最も好ましい区画室を適宜選択できることになる、という効果を奏する。   Further, in the inflated and unfolded state of the bag body 6, an upper compartment 11 that is a position corresponding to the shoulder of the occupant M, a lower compartment 13 that is a position corresponding to the waist of the occupant M, and a chest corresponding to the occupant M. Since the bag body 6 is formed by the intermediate compartment 12 located at the position Ma and between the upper compartment 11 and the lower compartment 13, the upper compartment 11, the intermediate compartment 12, and the lower compartment 13 are placed in the chest. There is an effect that the most preferable compartment can be appropriately selected so that the rising curve of the displacement has a gentle slope, the required time to reach the maximum reaching point is long, and the numerical value is also low.

本発明の実施例２に係る構造を、図５を用いて説明する。この実施例２の自動車用サイドエアバッグ装置１は、バッグ本体６の膨張展開状態で、乗員Ｍの肩部に相応する位置である上部区画室１１と、乗員Ｍの腰部に相応する位置である下部区画室１３と、乗員Ｍの胸部相応位置Ｍａであり且つ前記上部区画室１１及び下部区画室１３の間に配される中間区画室１２とよりバッグ本体６がなることは、実施例１と同じである。   A structure according to Embodiment 2 of the present invention will be described with reference to FIG. The side airbag device 1 for an automobile according to the second embodiment is in a position corresponding to the upper compartment 11 that corresponds to the shoulder of the occupant M and the waist of the occupant M in the inflated and deployed state of the bag body 6. The bag body 6 is composed of the lower compartment 13 and the middle compartment 12 which is located at the position Ma corresponding to the chest of the occupant M and is disposed between the upper compartment 11 and the lower compartment 13 as in the first embodiment. The same.

前記バッグ本体６の前記上部区画室１１及び下部区画室１３の前端部１１ａ及び１３ａと後端部１１ｂ及び１３ｂとを連結部材２０，２１により連結してなるため、平面視で略Ｖ字状を確実になすことができる、という効果を奏する。   Since the front end portions 11a and 13a and the rear end portions 11b and 13b of the upper compartment 11 and the lower compartment 13 of the bag body 6 are connected by connecting members 20 and 21, they are substantially V-shaped in plan view. There is an effect that it can be surely made.

前記実施例１〜２では、「車体」としてシートバック２を例にして説明したが、これに限定せず、ドアトリム４に組み込んだエアバッグでも良い。   In the first and second embodiments, the seat back 2 is described as an example of the “vehicle body”. However, the present invention is not limited to this, and an airbag incorporated in the door trim 4 may be used.

１ 自動車用サイドエアバッグ装置
２ 「車体」であるシートバック
３ インフレータ
４ 「室内側壁」であるドアトリム
５ ドアトリム側の間の空間
６ バッグ本体
６ａ 前方部
６ｂ 後方部
８ 前斜め方向
９ 後ろ斜め方向
１１ 上部区画室
１２ 中間区画室
１３ 下部区画室
２０、２１ 連結部材
Ｍ 乗員
Ｍａ 乗員の胸部相応位置
Ｇ インフレータから噴出するガス DESCRIPTION OF SYMBOLS 1 Side airbag apparatus for motor vehicles 2 Seat back which is "vehicle body" 3 Inflator 4 Door trim which is "interior side wall" 5 Space between door trim side 6 Bag main body 6a Front part 6b Rear part 8 Front diagonal direction 9 Back diagonal direction 11 Upper compartment 12 Middle compartment 13 Lower compartment 20, 21 Connecting member M Passenger Ma Position corresponding to the chest of the occupant G Gas ejected from the inflator

Claims (3)

車体に固定されてなるインフレータと、前記車体に配され且つ前記インフレータより噴出したガスにより室内側壁及び乗員相当位置の最も前記室内側壁側の間で膨張展開可能なバッグ本体とより構成されてなる自動車用サイドエアバッグ装置であって、
前記バッグ本体は、膨張展開状態で、乗員の胸部相応位置へ向けて斜め方向から乗員へ圧接可能なる前方部及び後方部とにより平面視で略Ｖ字状をなすように形成してなることを特徴とする自動車用サイドエアバッグ装置。 An automobile comprising: an inflator fixed to a vehicle body; and a bag body that is arranged on the vehicle body and that can be inflated and deployed between the indoor side wall and the side of the indoor side wall at a position corresponding to an occupant by a gas ejected from the inflator. Side air bag device for
The bag body is formed so as to form a substantially V shape in plan view by a front part and a rear part that can be pressed against the occupant from an oblique direction toward the position corresponding to the chest of the occupant in an inflated and deployed state. A feature of a side airbag device for an automobile. 請求項１記載の自動車用サイドエアバッグ装置であって、
前記バッグ本体の膨張展開状態で、乗員の肩部に相応する位置である上部区画室と、乗員の腰部に相応する位置である下部区画室と、乗員の胸部に相応する位置であり且つ前記上部区画室及び下部区画室の間に配される中間区画室とよりバッグ本体がなることを特徴とする自動車用サイドエアバッグ装置。 The vehicle side airbag device according to claim 1,
In the inflated and deployed state of the bag body, an upper compartment which is a position corresponding to the shoulder of the occupant, a lower compartment which is a position corresponding to the waist of the occupant, a position corresponding to the chest of the occupant and the upper part A side airbag device for an automobile, comprising a bag main body and an intermediate compartment disposed between the compartment and the lower compartment. 請求項２記載の自動車用サイドエアバッグ装置であって、
前記上部区画室及び下部区画室の前後端部を連結部材により連結してなることを特徴とする自動車用サイドエアバッグ装置。 The automobile side airbag device according to claim 2,
A side airbag device for an automobile, wherein front and rear end portions of the upper compartment and the lower compartment are connected by a connecting member.
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