JP2016120873A - Inflation structure for curtain airbag for vehicle - Google Patents

Inflation structure for curtain airbag for vehicle Download PDF

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JP2016120873A
JP2016120873A JP2014262991A JP2014262991A JP2016120873A JP 2016120873 A JP2016120873 A JP 2016120873A JP 2014262991 A JP2014262991 A JP 2014262991A JP 2014262991 A JP2014262991 A JP 2014262991A JP 2016120873 A JP2016120873 A JP 2016120873A
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pillar garnish
vehicle
stopper
curtain airbag
panel
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JP6468530B2 (en
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宗也 平松
Soya Hiramatsu
宗也 平松
喬 福山
Takashi Fukuyama
喬 福山
敬義 中川
Takayoshi Nakagawa
敬義 中川
嘉文 直野
Yoshifumi Naono
嘉文 直野
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Daihatsu Motor Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an inflation structure for a curtain air bag for a vehicle, which is securely inflates an airbag inwards in a vehicle cabin by reducing an amount of upward movement of a pillar garnish, thereby preventing movement of the movable part of the roof trim from being blocked in the event of vehicle side collision.SOLUTION: A folded body 7 of a curtain air bag is arranged between a body panel 2 and a roof trim 4 arranged so as to continue to the upper end of a pillar garnish 5, and the direction of inflation of the folded body 7 is restricted by a guide bracket 9 mounted on the body panel 2. A stopper part 9d is formed integrally with the guide bracket 9. A connection bracket 6 provided on the pillar garnish 5 and connecting the pillar garnish 5 to a body panel 1 has a stopper contact part 6c that restricts the pillar garnish 5 from moving upward and inward in the direction of vehicle width by coming into contact with the stopper part 9d in the event of vehicle side collision.SELECTED DRAWING: Figure 3

Description

本発明は、車両側突時に乗員の頭部を保護するカーテンエアバッグを車室内側に展開させるための展開構造に関する。   The present invention relates to a deployment structure for deploying a curtain airbag that protects an occupant's head in the case of a vehicle-side collision to the vehicle interior side.

自動車用カーテンエアバッグの展開構造として、従来例えば特許文献１に開示された構造がある。この従来構造では、ピラーガーニッシュの上端に続くように配置されたルーフトリムとルーフサイドレールとの間にサイドバッグの折り畳み体を配置し、ルーフトリムの、これに形成された溝部より下方部分を可動部とすると共に、前記ピラーガーニッシュの上端開口を蓋で覆うようにしている。   As a deployment structure of an automobile curtain airbag, for example, there is a structure disclosed in Patent Document 1, for example. In this conventional structure, the folding body of the side bag is arranged between the roof trim and the roof side rail arranged so as to follow the upper end of the pillar garnish, and the lower part of the roof trim can be moved from the groove formed in this. And the upper end opening of the pillar garnish is covered with a lid.

特許３７０２６６３号公報Japanese Patent No. 3702663

前記従来構造では、車両側突時にインフレータのガスが前記折り畳み体に供給されると前記可動部が車室内へ開き出すと共に、ピラーガーニッシュの上端開口を蓋で覆っていることから、折り畳み体を確実に車室内側に展開できるとされている。しかし例えば、ポール側突時のように比較的車体上部に側突荷重が作用する場合には、前記ピラーガーニッシュが浮き上がって前記ルーフトリムの可動部の動きを阻害し、その結果前記エアバッグの折り畳み体が車室内側にうまく展開しない場合があるという問題がある。 In the conventional structure, when the gas of the inflator is supplied to the folding body at the time of a vehicle side collision, the movable part opens into the vehicle interior, and the upper end opening of the pillar garnish is covered with a lid. It can be deployed on the vehicle interior side. However, for example, when a side impact load is applied relatively to the upper part of the vehicle body, such as at the time of a pole side collision, the pillar garnish is lifted and hinders the movement of the movable part of the roof trim, and as a result, the airbag is folded. There is a problem that the body may not be deployed well inside the vehicle interior.

本発明は、前記従来の状況に鑑みてなされたもので、車両側突時にルーフトリムの可動部の動きが阻害されるのを、ピラーガーニッシュの上方移動量を小さくすることにより防止し、もってエアバックを車室内側に確実に展開させることができる自動車用カーテンエアバッグの展開構造を提供することを課題としている。 The present invention has been made in view of the above-described conventional situation, and prevents the movement of the movable portion of the roof trim during a vehicle-side collision by preventing the upward movement of the pillar garnish, thereby reducing the air It is an object of the present invention to provide an automobile curtain airbag deployment structure that can reliably deploy a bag to the vehicle interior side.

本発明は、ピラーガーニッシュの上端に続くように配置されたルーフトリムとボディパネルとの間にカーテンエアバッグの折り畳み体を配置し、前記ボディパネルに取り付けられたガイドブラケットにより前記折り畳み体の展開方向を規制するようにした自動車用カーテンエアバッグの展開構造において、
前記ガイドブラケットに、ストッパ部を一体形成し、
前記ピラーガーニッシュの上部に設けられ、該ピラーガーニッシュをボディパネルに連結する連結ブラケットに、車両側突時に前記ストッパ部に当接することにより前記ピラーガーニッシュの上方移動及び車幅方向内側移動を規制するストッパ当接部を形成したことを特徴とする自動車用カーテンエアバッグの展開構造。 In the present invention, a folding body of a curtain airbag is disposed between a roof trim and a body panel arranged so as to follow the upper end of the pillar garnish, and a deployment direction of the folding body is achieved by a guide bracket attached to the body panel. In the deployment structure of the curtain air bag for automobiles that regulates
A stopper portion is formed integrally with the guide bracket,
A stopper provided on an upper portion of the pillar garnish, for restricting the upward movement of the pillar garnish and the inner movement in the vehicle width direction by contacting the stopper portion at the time of a vehicle side collision with a connecting bracket for connecting the pillar garnish to a body panel. 1. A deployment structure of a curtain airbag for an automobile, wherein a contact portion is formed.

本発明では、折り畳み体の展開方向をガイドするガイドブラケットに、ストッパ部を一体形成し、前記ピラーガーニッシュの連結ブラケットに、車両側突時に前記ストッパ部に当接するストッパ当接部を形成したので、前記ピラーガーニッシュの車両側突による上方移動量及び車幅方向内側移動量を抑制でき、ピラーガーニッシュがルーフトリムの動きを阻害するのを防止でき、その結果、カーテンエアバッグを車室内側に確実に展開させることができる。 In the present invention, a stopper part is integrally formed on the guide bracket that guides the unfolding direction of the folded body, and a stopper abutting part that abuts on the stopper part at the time of a vehicle side collision is formed on the connecting bracket of the pillar garnish. The amount of upward movement and the amount of movement in the vehicle width direction due to the vehicle side collision of the pillar garnish can be suppressed, and the pillar garnish can be prevented from inhibiting the movement of the roof trim. Can be deployed.

本発明の実施例１に係るエアバック取付け構造を車室内側から見た模式分解斜視図である。It is the model exploded perspective view which looked at the air bag attachment structure concerning Example 1 of the present invention from the vehicle interior side. 前記取付け構造のボディパネル側から見た斜視図である。It is the perspective view seen from the body panel side of the said attachment structure. 前記取付け構造の断面側面図（図２のIII-III断面図）である。It is a cross-sectional side view (III-III cross-sectional view of FIG. 2) of the mounting structure. 前記取付け構造の側突時の作用を説明するための図３相当図である。FIG. 4 is a view corresponding to FIG. 3 for explaining an operation at the time of a side collision of the mounting structure. 前記取付け構造の断面側面図（図２のV-V線断面図）である。FIG. 5 is a cross-sectional side view (cross-sectional view taken along the line V-V in FIG. 2) of the mounting structure. 前記取付け構造の主構成要素である連結ブラケットの要部の斜視図である。It is a perspective view of the principal part of the connection bracket which is the main component of the said attachment structure.

以下、本発明の実施の形態を添付図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

図１ないし図６は本発明の実施例１に係る自動車用カーテンエアバッグの展開構造を説明するための図である。   1 to 6 are views for explaining a deployment structure of a curtain airbag for an automobile according to Embodiment 1 of the present invention.

図において、１はボディパネルの車両後端部を構成するＣピラーパネルであり、該Ｃピラーパネル１の上縁から車両前方にルーフサイドパネル２が車両前方に延びており、該ルーフサイドパネル２の上端からルーフパネル（図示せず）が車幅方向内側に延びている。 In the figure, reference numeral 1 denotes a C pillar panel constituting a vehicle rear end portion of a body panel. A roof side panel 2 extends forward from the upper edge of the C pillar panel 1 to the front of the vehicle. A roof panel (not shown) extends inward in the vehicle width direction from the upper end of the vehicle.

前記ルーフパネルの車室内側には樹脂製で比較的柔軟性を有する内装部材としてのルーフトリム４が配設されており、また前記Ｃピラーパネル１の車室内側には樹脂製で比較的高硬度の内装部材としてのＣピラーガーニッシュ５が配設されている。前記Ｃピラーガーニッシュ５は複数のクリップ５ａを前記Ｃピラーパネル１に形成された係止孔１ａに係止させることで該Ｃピラーパネル１に固定されている。 A roof trim 4 as an interior member made of resin and having relatively flexibility is disposed on the vehicle interior side of the roof panel, and a resin resin relatively high on the vehicle interior side of the C pillar panel 1. A C pillar garnish 5 as an interior member having hardness is disposed. The C pillar garnish 5 is fixed to the C pillar panel 1 by locking a plurality of clips 5 a in locking holes 1 a formed in the C pillar panel 1.

また前記Ｃピラーガーニッシュ５の上縁部５ｂは、前記ルーフトリム４の下縁部４ａにラップするように配置されている。そして前記Ｃピラーガーニッシュ５の上縁部５ｂ近傍には連結ブラケット６が一体形成されており、該連結ブラケット６に嵌合装着されたクリップ１０を前記Ｃピラーパネル１に形成された連結孔１ｂに嵌合係止させることにより前記Ｃピラーガーニッシュ５の上部は前記Ｃピラーパネル１に固定され、かつ前記ルーフトリム４の下縁部４ａを押圧固定している。 Further, the upper edge portion 5 b of the C pillar garnish 5 is disposed so as to wrap around the lower edge portion 4 a of the roof trim 4. A connection bracket 6 is integrally formed in the vicinity of the upper edge portion 5b of the C pillar garnish 5, and a clip 10 fitted to the connection bracket 6 is inserted into a connection hole 1b formed in the C pillar panel 1. By fitting and locking, the upper portion of the C pillar garnish 5 is fixed to the C pillar panel 1 and the lower edge 4a of the roof trim 4 is pressed and fixed.

前記ルーフトリム４の下部には薄肉部４ｂが形成されており、該薄肉部４ｂより下側部分はエアバッグ展開時に室内側に押し広げられる可動部４ｃとなっている。 A thin portion 4b is formed in the lower portion of the roof trim 4, and a portion below the thin portion 4b is a movable portion 4c that is pushed and expanded to the indoor side when the airbag is deployed.

前記ルーフサイドパネル２に沿って布製のカーテンエアバッグを棒状に折り畳んだ状態のエアバッグ折り畳み体７が配置されている。このエアバック折り畳み体７は、間隔を開けて形成された複数の取付けブラケット８を介して前記ルーフサイドパネル２にボルト締め固定されている。 An airbag folded body 7 in a state in which a cloth curtain airbag is folded into a rod shape is disposed along the roof side panel 2. The airbag folded body 7 is bolted and fixed to the roof side panel 2 via a plurality of mounting brackets 8 formed at intervals.

そして前記エアバッグ折り畳み体７の後端の前記Ｃピラーパネル1対応部付近には、該折り畳み体７が側突時に確実に車室内方向に展開するようにその展開方向をガイドするガイドブラケット９が配設されている。 A guide bracket 9 that guides the deployment direction of the folding body 7 in the vicinity of the portion corresponding to the C pillar panel 1 at the rear end of the airbag folding body 7 so that the folding body 7 is surely deployed in the direction of the passenger compartment when a side collision occurs. It is arranged.

前記ガイドブラケット９は板金製のもので、前記折り畳み体７の展開方向を車室内側に向かわせるガイド面９ａと、該ガイド面９ａの車幅方向外縁に続いて上方に折り曲げられた取付け面９ｂとを有する。この取付け面９ｂは、ボルト９ｃにより前記Ｃピラーパネル１に締め付け固定されている。なお、９ｅはハーネスクリップ（図示せず）用取付け孔である。 The guide bracket 9 is made of sheet metal, and includes a guide surface 9a that directs the unfolding direction of the folding body 7 toward the vehicle interior side, and an attachment surface 9b that is bent upward following an outer edge in the vehicle width direction of the guide surface 9a. And have. The mounting surface 9b is fastened and fixed to the C pillar panel 1 by bolts 9c. Reference numeral 9e denotes a mounting hole for a harness clip (not shown).

そして前記ガイドブラケット９にはストッパ部９ｄが一体形成されている。このストッパ部９ｄは、前記ガイド面９ａの内縁を下方に折り曲げ、さらに車幅方向外方に向けて斜め下方に傾斜面をなすように延長したものである。 The guide bracket 9 is integrally formed with a stopper portion 9d. The stopper portion 9d is formed by bending the inner edge of the guide surface 9a downward and further extending an inclined surface obliquely downward toward the outer side in the vehicle width direction.

前記連結ブラケット６は、前記Ｃピラーガーニッシュ５に一体形成された底板部６ａと、該底板部６ａの車幅方向外側端部に一体形成されたクリップ保持部６ｂと、前記底板部６ｂの上面にリブ状に形成されたストッパ当接部６ｃとを有する。前記クリップ保持部６ｂに前記クリップ１０が保持されている。 The connecting bracket 6 includes a bottom plate portion 6a formed integrally with the C pillar garnish 5, a clip holding portion 6b formed integrally with an outer end in the vehicle width direction of the bottom plate portion 6a, and an upper surface of the bottom plate portion 6b. And a stopper contact portion 6c formed in a rib shape. The clip 10 is held by the clip holding portion 6b.

前記ストッパ当接部６ｃは、前記ガイドブラケット９のストッパ部９ｄの先端部直下に位置し、該ストッパ部９ｄに沿う傾斜面をなす傾斜リブ６ｅと、この傾斜リブ６ｅの下端部から起立し、前記ストッパ部９ｄの先端面に対向するように立ち上がる突起リブ６ｄとで構成されている。ここで前記突起リブ６ｄは、前記ストッパ部９ｄの先端より寸法Ｂだけ下方に位置している。 The stopper abutting portion 6c is located immediately below the distal end portion of the stopper portion 9d of the guide bracket 9, and rises from an inclined rib 6e that forms an inclined surface along the stopper portion 9d, and a lower end portion of the inclined rib 6e, It is composed of a protruding rib 6d that rises so as to face the tip surface of the stopper portion 9d. Here, the protruding rib 6d is positioned below the tip of the stopper portion 9d by a dimension B.

本実施例構造において、Ｃピラーガーニッシュ５をＣピラーパネル１に組み付ける場合、該Ｃピラーガーニッシュ５を図３の矢印Ａ方向に移動させ、前記クリップ１０を前記Ｃピラーパネル１の連結孔１ｂに挿入係止させる。このとき、前記連結ブラケット６のストッパ当接部６ｃの前記突起リブ６ｄと前記ストッパ部９ｄの先端との間には、前述のように高さ方向に寸法Ｂの隙間があるので、前記ストッパ部９ｄが前記連結ブラケット６の組み付け作業時の邪魔になることはない。 In the structure of this embodiment, when the C pillar garnish 5 is assembled to the C pillar panel 1, the C pillar garnish 5 is moved in the direction of arrow A in FIG. 3 and the clip 10 is inserted into the connecting hole 1b of the C pillar panel 1. Lock. At this time, since there is a gap of dimension B in the height direction between the protruding rib 6d of the stopper abutting portion 6c of the connecting bracket 6 and the tip of the stopper portion 9d, the stopper portion 9d does not interfere with the assembling work of the connecting bracket 6.

そして前記車両後部の側部が電柱等に衝突するような車両側突時において、前記Ｃピラーパネル１からＣピラーガーニッシュ５を上方に移動させる荷重が作用した場合、図４に破線で示すように、Ｃピラーガーニッシュ５の上方移動により前記ストッパ当接部６ｃの傾斜リブ６ｅがストッパ部９ｄに当接し、そのためＣピラーガーニッシュ５は内側斜め上方にガイドされ、続いて突起リブ６ｄがストッパ部９ｄの先端に当接することで該Ｃピラーガーニッシュ５の移動が停止される。なお、図４において斜線が施されているのは、側突前におけるストッパ当接部６ｃの位置を明示するためである。 When a load that moves the C pillar garnish 5 upward from the C pillar panel 1 is applied at the time of a vehicle side collision such that the side portion of the rear part of the vehicle collides with a power pole or the like, as shown by a broken line in FIG. The upward movement of the C pillar garnish 5 causes the inclined rib 6e of the stopper contact portion 6c to contact the stopper portion 9d, so that the C pillar garnish 5 is guided obliquely upward on the inside, and subsequently the protruding rib 6d is moved to the stopper portion 9d. The movement of the C pillar garnish 5 is stopped by coming into contact with the tip. In FIG. 4, the hatched lines are used to clearly indicate the position of the stopper contact portion 6 c before the side collision.

このようにしてＣピラーガーニッシュ５の上方移動量Ｈ及び車幅方向内側移動量Ｄが抑制され、Ｃピラーガーニッシュ５のルーフトリム４とのラップ量が最小限に保持される。この結果、Ｃピラーガーニッシュ５がルーフトリム４の動きを阻害するのを防止でき、エアバッグ折り畳み体７の展開に支障が生じるのを回避でき、カーテンエアバッグを車室内側に確実に展開させることができる。 In this manner, the upward movement amount H and the vehicle width direction inner movement amount D of the C pillar garnish 5 are suppressed, and the amount of wrapping of the C pillar garnish 5 with the roof trim 4 is kept to a minimum. As a result, it is possible to prevent the C pillar garnish 5 from obstructing the movement of the roof trim 4, to prevent the airbag folding body 7 from being hindered, and to reliably deploy the curtain airbag to the vehicle interior side. Can do.

２ ルーフサイドパネル（ボディパネル）
４ ルーフトリム
５ ピラーガーニッシュ
６ 連結ブラケット
６ｃ ストッパ当接部
７ カーテンエアバッグの折り畳み体
９ ガイドブラケット
９ｄ ストッパ部 2 Roof side panel (body panel)
4 Roof trim 5 Pillar garnish 6 Connecting bracket 6c Stopper contact portion 7 Curtain airbag folding body 9 Guide bracket 9d Stopper portion

Claims (1)

ピラーガーニッシュの上端に続くように配置されたルーフトリムとボディパネルとの間にカーテンエアバッグの折り畳み体を配置し、前記ボディパネルに取り付けられたガイドブラケットにより前記折り畳み体の展開方向を規制するようにした自動車用カーテンエアバッグの展開構造において、
前記ガイドブラケットに、ストッパ部を一体形成し、
前記ピラーガーニッシュの上部に設けられ、該ピラーガーニッシュをボディパネルに連結する連結ブラケットに、車両側突時に前記ストッパ部に当接することにより前記ピラーガーニッシュの上方移動及び車幅方向内側移動を規制するストッパ当接部を形成した
ことを特徴とする自動車用カーテンエアバッグの展開構造。 The folding body of the curtain airbag is arranged between the roof trim and the body panel arranged so as to follow the upper end of the pillar garnish, and the deployment direction of the folding body is regulated by the guide bracket attached to the body panel. In the deployment structure of the automobile curtain airbag
A stopper portion is formed integrally with the guide bracket,
A stopper provided on an upper portion of the pillar garnish, for restricting the upward movement of the pillar garnish and the inner movement in the vehicle width direction by contacting the stopper portion at the time of a vehicle side collision with a connecting bracket for connecting the pillar garnish to a body panel. 1. A deployment structure of a curtain airbag for an automobile, wherein a contact portion is formed.
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WO2021105577A1 (en) * 2019-11-28 2021-06-03 Psa Automobiles Sa Deflector for a curtain airbag

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CN111301309B (en) * 2020-02-18 2021-11-16 吉利汽车研究院（宁波）有限公司 Mounting structure of A post plaque and automobile body panel beating

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JP2003252161A (en) * 2002-02-27 2003-09-10 Nissan Motor Co Ltd Shock absorbing structure of upper part of car body of automobile
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WO2021105577A1 (en) * 2019-11-28 2021-06-03 Psa Automobiles Sa Deflector for a curtain airbag
FR3103762A1 (en) * 2019-11-28 2021-06-04 Psa Automobiles Sa Curtain type airbag deflector

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