JP3364660B2 - Instrument panel for airbag - Google Patents
Instrument panel for airbagInfo
- Publication number
- JP3364660B2 JP3364660B2 JP21979795A JP21979795A JP3364660B2 JP 3364660 B2 JP3364660 B2 JP 3364660B2 JP 21979795 A JP21979795 A JP 21979795A JP 21979795 A JP21979795 A JP 21979795A JP 3364660 B2 JP3364660 B2 JP 3364660B2
- Authority
- JP
- Japan
- Prior art keywords
- airbag
- skin
- tongue
- instrument panel
- back surface
- 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.)
- Expired - Fee Related
Links
Landscapes
- Instrument Panels (AREA)
- Air Bags (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、エアバッグ装置の
エアバッグドアを内蔵し、エアバッグの膨張時に上記エ
アバッグドアの周囲を破断させるエアバッグ用インスト
ルメントパネルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument panel for an air bag, which has a built-in air bag door of an air bag device and breaks around the air bag door when the air bag is inflated.
【０００２】[0002]
【従来の技術】エアバッグ装置を内蔵するインストルメ
ントパネルとしては、例えば図１０に示すように、エア
バッグドア部分から芯材の部分にかけて連続して構成さ
れている表皮１′の裏面に発泡樹脂層２′を重合すると
共に、この発泡樹脂層２′の裏面に開口３′を有する芯
材４′とこの開口３′に配設されたエアバッグドア５′
とを夫々重合し、概ね上記エアバッグドア５′と芯材
４′の間を破断部６′として上記発泡樹脂層２′と表皮
１′とをエアバッグの展開時に破断させるようになって
いる。2. Description of the Related Art As an instrument panel having a built-in airbag device, for example, as shown in FIG. 10, the air
It is constructed continuously from the bag door to the core material.
It is to have with polymerizing 'foamed resin layer 2 on the back surface of' the skin 1, an air bag door disposed in 'the opening 3' core 4 having an 'opening 3 on the back side of' the foamed resin layer 2 5 '
Are respectively polymerized, and the foamed resin layer 2'and the skin 1'are ruptured at the time of deployment of the airbag, with a break portion 6'between the airbag door 5'and the core member 4 '. .
【０００３】この破断部６′では、塩化ビニール等から
なる上記表皮１′の所定位置に薄肉部１ａ′が形成され
ており、エアバッグの展開時には、エアバッグの内圧で
押し開かれたエアバッグドアにより上記表皮１′の薄肉
部１ａ′とその近傍の前記発泡樹脂層２′とが破断され
るようになっている。In the broken portion 6 ', a thin portion 1a' is formed at a predetermined position of the skin 1'made of vinyl chloride or the like, and when the airbag is deployed, the airbag is pushed open by the internal pressure of the airbag. The thin portion 1a 'of the skin 1'and the foamed resin layer 2'in the vicinity thereof are broken by the door.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来のインストルメントパネルでは、表皮１′と発泡樹脂
層２′との接着力と、表皮１′の破断荷重、伸びとのバ
ランスが難しく、高度な技術が必要であった。However, in the above-mentioned conventional instrument panel, it is difficult to balance the adhesive force between the outer skin 1'and the foamed resin layer 2'with the breaking load and the elongation of the outer skin 1 '. Technology was needed.
【０００５】本発明は叙上の如き実状に対処し、表皮の
一部に新規な構成を見出すことにより、エアバッグ展開
時の表皮の剥離をなくすることを目的とするものであ
る。An object of the present invention is to eliminate the peeling of the epidermis at the time of deploying the airbag by coping with the above situation and finding a new structure in a part of the epidermis.
【０００６】[0006]
【課題を解決するための手段】すなわち、上記目的に適
合する本発明のエアバッグ用インストルメントパネルの
特徴は、前述の如く、エアバッグドア部分から芯材の部
分にかけて連続して構成されている表皮の裏面に発泡樹
脂層を重合する一方、この発泡樹脂層の裏面に、開口を
有する芯材とこの開口に配設されたエアバッグドアとを
夫々重合し、上記エアバッグドアの周囲を破断部とし
て、少なくとも上記表皮をエアバッグの膨張により破断
せしめるエアバッグ用インストルメントパネルにおい
て、上記破断部の芯材側で、上記エアバッグドア部分か
ら芯材の部分にかけて連続して構成されている表皮の裏
面から上記発泡樹脂層を厚み方向に分断するよう舌状片
を一体に延出すると共に、この舌状片の延出端部を上記
芯材の裏面に止着せしめて少なくとも破断部の芯材側に
おいて表皮と芯材とを該舌状片により連結せしめたとこ
ろにある。また、上記本発明のインストルメントパネル
において、上記破断部のエアバッグドア側で、上記表皮
の裏面から発泡樹脂層を厚み方向に分断するよう他の舌
状片を一体に延出し、この舌状片の延出端部を上記エア
バッグドアの裏面に止着することも可能である。That is, the features of the instrument panel for an air bag of the present invention which meet the above-mentioned object are that the air bag door portion to the core material portion are as described above.
While the foamed resin layer is polymerized on the back surface of the skin which is continuously formed over a period of time, the core material having an opening and the airbag door arranged in the opening are respectively polymerized on the back surface of the foamed resin layer. In the instrument panel for an airbag in which at least the outer skin is broken by the expansion of the airbag, with the periphery of the airbag door as a breaking portion, on the core material side of the breaking portion, the airbag door portion is
The tongue-shaped piece is integrally extended from the back surface of the skin formed continuously from the core to the core material so as to divide the foamed resin layer in the thickness direction, and the extending end of the tongue-shaped piece is Fasten it to the back of the core material so that it is at least on the core side of the break.
The outer skin and the core material are connected by the tongue . Further, in the instrument panel of the present invention, on the airbag door side of the breaking portion, another tongue piece is integrally extended from the back surface of the skin so as to divide the foamed resin layer in the thickness direction. It is also possible to fix the extended end of the piece to the back surface of the airbag door.
【０００７】[0007]
【作用】上記本発明のインストルメントパネルでは、少
なくとも破断部の芯材側において表皮と芯材とが上記舌
状片によって連結されることから、表皮と発泡樹脂層と
がエアバッグ展開時に剥離することがない。In the instrument panel of the present invention, since the skin and the core material are connected by the tongue-shaped piece at least on the core material side of the breakage portion, the skin and the foamed resin layer are separated when the airbag is deployed. Never.
【０００８】[0008]
【発明の実施の形態】以下さらに添付図面を参照して、
本発明の実施例を説明する。BEST MODE FOR CARRYING OUT THE INVENTION With reference to the accompanying drawings,
An example of the present invention will be described.
【０００９】図１は本発明第１実施例の助手席エアバッ
グ用インストルメントパネルを示す部分断面図であり、
こインストルメントパネルは、表皮１の裏面に発泡樹脂
層２を重合すると共に、この発泡樹脂層２の裏面に、開
口３を有する芯材４とこの開口３に配設されたエアバッ
グドア５とを夫々重合し、上記エアバッグドア５と芯材
４との間を破断部６として、上記表皮１をエアバッグの
膨張により破断するよう構成されている。FIG. 1 is a partial sectional view showing an instrument panel for a passenger airbag according to a first embodiment of the present invention.
In the instrument panel, a foamed resin layer 2 is polymerized on the back surface of a skin 1, and a core material 4 having an opening 3 and an airbag door 5 arranged in the opening 3 are formed on the back surface of the foamed resin layer 2. Are superposed on each other and the space between the airbag door 5 and the core member 4 is used as a breaking portion 6 to break the skin 1 by the expansion of the airbag.
【００１０】そして、この実施例においては、上記破断
部６の芯材４側とエアバッグドア５側とで、上記表皮１
の裏面から図示の如く上記発泡樹脂層２を厚み方向に分
断するよう２条の舌状片７，８を夫々一体に延出すると
共に、これら舌状片７，８の延出端部７ａ，８ａを上記
芯材４とエアバッグドア５の各裏面に夫々止着せしめて
いる。Further, in this embodiment, the skin 1 is formed by the side of the core 4 and the side of the airbag door 5 of the breaking portion 6.
As shown in the drawing, the two tongue pieces 7 and 8 are integrally extended from the back surface of the tongue so as to divide the foamed resin layer 2 in the thickness direction, and the extended end portions 7a of the tongue pieces 7 and 8 are 8a are fastened to the back surfaces of the core member 4 and the airbag door 5, respectively.
【００１１】なお、この例では特に形成していないが、
表皮１の舌状片７と８の間、すなわち破断部６に薄肉部
を形成することも可能である。Although not particularly formed in this example,
It is also possible to form a thin portion between the tongue-shaped pieces 7 and 8 of the epidermis 1, that is, the break portion 6.
【００１２】上記舌状片７，８の延出端部７ａ，８ａを
止着する方法としては、接着剤の使用の他に、図２に示
すように発泡樹脂層２の樹脂（この例では発泡ウレタ
ン）を介しての接着、図３に示すようにリベット９によ
る止着などがある。また、図４に示すように、型成形時
に予めボルト付で表皮１をセットし、ボルト１０とナッ
ト（図示せず）により止着する方法もある。As a method of fixing the extended end portions 7a and 8a of the tongue-shaped pieces 7 and 8, in addition to the use of an adhesive, the resin of the foamed resin layer 2 (in this example, as shown in FIG. 2) is used. Adhesion via foamed urethane) and fastening with rivets 9 as shown in FIG. Further, as shown in FIG. 4, there is also a method in which the skin 1 is previously set with a bolt at the time of molding, and is fixed by a bolt 10 and a nut (not shown).
【００１３】一方、上記実施例のインストルパネルの製
造方法としては、先ず舌状片７，８を有する表皮１を図
５に示す如きパウダースラッシュ工法により作製する。
すなわち、型１１内に図示の如き刃型１６を内蔵し、刃
型１６の先端部に配設した温調パイプやニクロム線等の
加熱手段１３により刃型１６の先端部を加熱し、表皮１
本体と舌状片７，８を同時に一体成形する。On the other hand, as a method of manufacturing the instrument panel of the above-mentioned embodiment, first, the skin 1 having the tongue-shaped pieces 7 and 8 is manufactured by the powder slush method as shown in FIG.
That is, the blade die 16 as shown in the figure is built in the die 11, and the tip portion of the blade die 16 is heated by the heating means 13 such as a temperature control pipe or a nichrome wire arranged at the tip portion of the blade die 16 so that the skin 1
The main body and the tongues 7 and 8 are integrally molded at the same time.
【００１４】そして、図６に示すように、下型１２上に
上記表皮１をセットすると共に、エアバッグドア５と芯
材４の各々の上部に上記舌状片７，８の延出端部７ａ，
８ａが載るようにセットし、上型１５を介して注入ヘッ
ド１４より発泡樹脂を注入する。Then, as shown in FIG. 6, the outer skin 1 is set on the lower mold 12, and the extending end portions of the tongue-shaped pieces 7, 8 are provided on the upper portions of the airbag door 5 and the core member 4, respectively. 7a,
8a is set so that the foaming resin is injected from the injection head 14 through the upper mold 15.
【００１５】他方、図７は本発明第２実施例のインスト
ルメントパネルを示す部分断面図であり、先の実施例と
同一部材には同一符号を記している。On the other hand, FIG. 7 is a partial cross-sectional view showing an instrument panel of the second embodiment of the present invention, and the same members as those in the previous embodiment are designated by the same reference numerals.
【００１６】すなわち、この実施例では、破断部６の芯
材４側のみで、表皮１の裏面から図示の如く発泡樹脂層
２を厚み方向に分断するよう１条の舌状片７を一体に延
出すると共に、この舌状片７の延出端部７ａを芯材４の
裏面に止着せしめている。表皮１の舌状片７のエアバッ
グドア５側には、このエアバッグドア５と上記芯材４と
の間を破断部６とするための薄肉部１ａが形成されてい
る。That is, in this embodiment, a single tongue piece 7 is integrally formed so as to divide the foamed resin layer 2 in the thickness direction from the back surface of the skin 1 only on the side of the core material 4 of the breaking portion 6, as shown in the figure. While extending, the extending end portion 7a of the tongue 7 is fixed to the back surface of the core material 4. On the airbag door 5 side of the tongue-shaped piece 7 of the skin 1, a thin portion 1a for forming a break portion 6 between the airbag door 5 and the core member 4 is formed.
【００１７】しかして、上記本発明各実施例のインスト
ルメントパネルでは、夫々に破断部６の芯材４側におい
て表皮１と芯材４とが上記舌状片７によって連結されて
おり、これにより表皮１が多少伸びやすくてもエアバッ
グの展開時に表皮１が発泡樹脂層２から剥離することが
なく、破断部６にエアバッグの展開圧力を集中して、図
８，図９に示す如く、より円滑にインストルメントパネ
ルを破断せしめることが可能である。In the instrument panel of each of the embodiments of the present invention, however, the skin 1 and the core member 4 are connected by the tongue piece 7 on the core member 4 side of the breakage portion 6, respectively. Even if the skin 1 is slightly stretchable, the skin 1 does not separate from the foamed resin layer 2 when the air bag is deployed, and the deployment pressure of the air bag is concentrated on the breakage portion 6, as shown in FIGS. 8 and 9. It is possible to break the instrument panel more smoothly.
【００１８】以上、本発明のエアバッグ用インストルメ
ントパネルを説明したが、前記舌状片７，８は夫々破断
部６の全周に亘り連続して壁状に形成することも可能で
あり、また間欠的に形成することも可能である。なお、
インストルメントパネル全体としての形状は、一般のエ
アバッグ内蔵タイプと概ね変わりがないため、ここでは
省略している。Although the instrument panel for an air bag of the present invention has been described above, the tongue-shaped pieces 7 and 8 can be formed in a wall shape continuously over the entire circumference of the fractured portion 6, respectively. It is also possible to form it intermittently. In addition,
The shape of the instrument panel as a whole is almost the same as that of a general airbag built-in type, and is omitted here.
【００１９】[0019]
【発明の効果】以上説明したように、本発明のエアバッ
グ用インストルメントパネルは、エアバッグドアの周囲
に破断部を形成したインストルメントパネルにおいて、
上記破断部の芯材側で、エアバッグドア部分から芯材の
部分にかけて連続して構成されている表皮の裏面から発
泡樹脂層を厚み方向に分断するよう舌状片を一体に延出
し、この舌状片の延出端部を上記芯材の裏面に止着せし
めたものであり、少なくとも破断部の芯材側において表
皮と芯材とが上記舌状片によって連結されることから、
エアバッグ展開時に表皮が発泡樹脂層から剥離すること
がなく、破断部にエアバッグの展開圧力を集中せしめ
て、より円滑にインストルメントパネルを破断すること
ができるとの顕著な効果を奏するものである。As described above, the instrument panel for an air bag of the present invention is an instrument panel in which a broken portion is formed around the air bag door,
On the core material side of the above-mentioned breakage part ,
The tongue piece is integrally extended to divide the foamed resin layer in the thickness direction from the back surface of the skin that is continuously formed over the part
And the extending end portion of the tongue of this are those that brought clothed stop on the rear surface of the core material, that the skin and the core material in the core material side of at least breaks are connected by the tongue From
With the remarkable effect that the skin does not peel off from the foamed resin layer when the airbag is deployed, the deployment pressure of the airbag is concentrated on the breakage portion, and the instrument panel can be broken more smoothly. is there.
【図１】本発明第１実施例のエアバッグ用インストルメ
ントパネルを示す部分断面図である。FIG. 1 is a partial sectional view showing an instrument panel for an airbag according to a first embodiment of the present invention.
【図２】同実施例の舌状片の止着例を示す部分断面図で
ある。FIG. 2 is a partial cross-sectional view showing a fastening example of the tongue-shaped piece of the embodiment.
【図３】同実施例の舌状片の他の止着例を示す部分断面
図である。FIG. 3 is a partial cross-sectional view showing another example of fastening the tongue-shaped piece of the embodiment.
【図４】同実施例の舌状片のさらにまた他の止着例を示
す部分断面図である。FIG. 4 is a partial cross-sectional view showing still another fastening example of the tongue-shaped piece of the embodiment.
【図５】同実施例の表皮の製造方法を示す部分断面図で
ある。FIG. 5 is a partial cross-sectional view showing the method for manufacturing the epidermis of the example.
【図６】同実施例のインストルメントパネルの製造方法
を示す部分断面図である。FIG. 6 is a partial cross-sectional view showing the method of manufacturing the instrument panel of the embodiment.
【図７】本発明第２実施例のエアバッグ用インストルメ
ントパネルを示す部分断面図である。FIG. 7 is a partial cross-sectional view showing an instrument panel for an air bag of a second embodiment of the present invention.
【図８】第１実施例の破断状態を示す部分断面図であ
る。FIG. 8 is a partial sectional view showing a broken state of the first embodiment.
【図９】第２実施例の破断状態を示す部分断面図であ
る。FIG. 9 is a partial cross-sectional view showing a broken state of the second embodiment.
【図１０】従来のエアバッグ用インストルメントパネル
を示す部分断面図である。FIG. 10 is a partial cross-sectional view showing a conventional instrument panel for an airbag.
１ 表皮 １ａ 薄肉部 ２ 発泡樹脂層 ３ 芯材の開口 ４ 芯材 ５ エアバッグドア ６ 破断部 ７，８ 舌状片 ７ａ，８ａ 舌状片の延出端部 ９ リベット １０ ボルト １１ スラッシュ成形型 １２ 下型 １３ 加熱手段 １４ 注入ヘッド １５ 上型 １６ 刃型 1 epidermis 1a Thin part 2 Foamed resin layer 3 Core material opening 4 core material 5 airbag door 6 break 7,8 tongue 7a, 8a Extending end of tongue 9 rivets 10 volts 11 Slash mold 12 Lower mold 13 Heating means 14 Injection head 15 Upper mold 16 blade type
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平７−156737（ＪＰ，Ａ) 特開 平６−247252（ＪＰ，Ａ) 実開 平５−84544（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60R 21/20 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-156737 (JP, A) JP-A-6-247252 (JP, A) Fukukaihei 5-84544 (JP, U) (58) Field (Int.Cl. 7 , DB name) B60R 21/20
Claims (2)
この発泡樹脂層の裏面に、開口を有する芯材とこの開口
に配設されたエアバッグドアとを夫々重合し、前記表皮
がエアバッグドア部分から芯材の部分にかけて連続して
構成されていると共に、上記エアバッグドアの周囲を破
断部として、少なくとも上記表皮をエアバッグの膨張に
より破断せしめるエアバッグ用インストルメントパネル
において、上記破断部の芯材側で、上記エアバッグドア
部分から芯材にかけて連続して構成されている表皮の裏
面から上記発泡樹脂層を厚み方向に分断するよう舌状片
を一体に延出し、この舌状片の延出端部を上記芯材の裏
面に止着せしめて、少なくとも破断部の芯材側において
表皮と芯材とを該舌状片により連結せしめたことを特徴
とするエアバッグ用インストルメントパネル。1. A resin foam layer is polymerized on the back surface of the skin,
On the back surface of the foamed resin layer, a core material having an opening and an airbag door arranged in the opening are respectively polymerized to form the skin.
From the airbag door to the core
In the instrument panel for an air bag that is configured and has a periphery of the airbag door as a breaking portion, at least the outer skin is broken by the expansion of the airbag, on the core material side of the breaking portion, the airbag door.
And extending integrally tongue so that the back surface of the skin that is configured continuously from the portion toward the core to divide the foamed resin layer in a thickness direction, the core material extending end of the tongue It is fastened to the back surface of the at least the core material side of the fracture part
An instrument panel for an air bag, wherein an outer skin and a core material are connected by the tongue-shaped piece .
ッグドア部分から芯材部分にかけて連続して構成されて
いる表皮の裏面から発泡樹脂層を厚み方向に分断するよ
う他の舌状片を一体に延出し、この舌状片の延出端部を
上記エアバッグドアの裏面に止着した請求項１記載のエ
アバッグ用インストルメントパネル。In wherein the air bag door side of the broken part, Airbus
It is constructed continuously from the door part to the core part
The other tongue piece is integrally extended from the back surface of the outer skin to divide the foamed resin layer in the thickness direction, and the extending end portion of the tongue piece is fixed to the back surface of the airbag door. Instrument panel for airbag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21979795A JP3364660B2 (en) | 1995-08-04 | 1995-08-04 | Instrument panel for airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21979795A JP3364660B2 (en) | 1995-08-04 | 1995-08-04 | Instrument panel for airbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0948316A JPH0948316A (en) | 1997-02-18 |
| JP3364660B2 true JP3364660B2 (en) | 2003-01-08 |
Family
ID=16741190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21979795A Expired - Fee Related JP3364660B2 (en) | 1995-08-04 | 1995-08-04 | Instrument panel for airbag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3364660B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061288A1 (en) * | 1998-05-27 | 1999-12-02 | Inova Gmbh Technische Entwicklungen | Vehicle part with an airbag device and method for producing a vehicle part of this type |
| FR2900890B1 (en) * | 2006-05-09 | 2009-03-27 | Faurecia Interieur Ind Snc | EQUIPMENT PIECE FOR MOTOR VEHICLE AND ASSOCIATED MOTOR VEHICLE |
| JP5931358B2 (en) * | 2011-06-29 | 2016-06-08 | 富士重工業株式会社 | Interior panel for vehicle and method for manufacturing the same |
-
1995
- 1995-08-04 JP JP21979795A patent/JP3364660B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0948316A (en) | 1997-02-18 |
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