JP4745913B2 - Instrument panel for vehicle with airbag door - Google Patents

Instrument panel for vehicle with airbag door Download PDF

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JP4745913B2
JP4745913B2 JP2006211119A JP2006211119A JP4745913B2 JP 4745913 B2 JP4745913 B2 JP 4745913B2 JP 2006211119 A JP2006211119 A JP 2006211119A JP 2006211119 A JP2006211119 A JP 2006211119A JP 4745913 B2 JP4745913 B2 JP 4745913B2
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instrument panel
airbag
airbag door
vehicle
hinge
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JP2007084055A (en
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健三 安達
理宏 神本
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Daikyo Nishikawa Corp
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Daikyo Nishikawa Corp
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Description

この発明は、例えば車両衝突時にエアバッグ装置の作動で脆弱部が破断して開くエアバッグドア部を有するエアバッグドア部付き車両用インストルメントパネルに関し、特に、脆弱部が外部から見えないシームレスタイプのエアバッグドア部を対象とするものである。 Seamless This invention example relates Rue Abaggudoa unit with the vehicle instrument panel weak portion having a air bag door portion opened by breaking at the airbag device operates at the time of a vehicle collision, particularly, the fragile portion is not visible from the outside It is intended for types of airbag doors.

特許文献1には、インストルメントパネル本体を硬質樹脂材で成形して剛性を確保するとともに、エアバッグドア部を熱可塑性エラストマー材で成形してその靱性によりヒンジ部を撓み易くしてエアバッグドア部の開動作をスムーズに行わせるようにした技術が開示されている。   In Patent Document 1, an instrument panel body is molded with a hard resin material to ensure rigidity, and an airbag door portion is molded with a thermoplastic elastomer material so that the hinge portion can be easily bent due to its toughness. A technique is disclosed in which the opening operation of the part is performed smoothly.

一方、特許文献2には、エアバッグドア部裏面に該エアバッグドア部の外周を取り囲むようにエアバッグガイド用枠部を一体に溶着するとともに、該枠部内部にフラップ部を車幅方向に延びる断面略U字状の可撓性ヒンジ部を介して一体に連結して配置し、かつエアバッグドア部裏面に上記フラップ部を一体に溶着することにより、エアバッグドア部をフラップ部で補強するとともに、ヒンジ部はエアバッグドア部の開動作に伴って伸びるが千切れないようにしてエアバッグドア部が飛散しないようにした技術が開示されている。
特開平9−2188号公報(段落0038欄、図1) 特開2004−148909号公報(段落0016欄、図8)
On the other hand, in Patent Document 2, an airbag guide frame portion is integrally welded to the back surface of the airbag door portion so as to surround the outer periphery of the airbag door portion, and a flap portion is disposed in the vehicle width direction inside the frame portion. The airbag door part is reinforced with the flap part by integrally connecting the flexible hinge part through the extending U-shaped flexible hinge part and welding the flap part integrally to the back surface of the airbag door part. In addition, a technique is disclosed in which the hinge portion extends along with the opening operation of the airbag door portion, but the hinge door portion is prevented from being broken to prevent the airbag door portion from scattering.
Japanese Patent Laid-Open No. 9-2188 (paragraph 0038, FIG. 1) JP 2004-148909 A (paragraph 0016 column, FIG. 8)

しかし、特許文献1では、汎用樹脂材に比べて高価な熱可塑性エラストマー材を使用しており、また、特許文献2では、フラップ部が余分に必要であるとともに該フラップ部をエアバッグドア部裏面に溶着する手間が掛かり、いずれにしてもコストアップを招来する。   However, in Patent Document 1, a thermoplastic elastomer material that is more expensive than a general-purpose resin material is used, and in Patent Document 2, an additional flap portion is necessary and the flap portion is attached to the back surface of the airbag door portion. It takes a lot of time and effort to weld it, which incurs a cost increase anyway.

この発明はかかる点に鑑みてなされたものであり、その目的とするところは、エアバッグドア部がエアバッグ展開時の衝撃で飛散しない車両用インストルメントパネルを廉価に提供することである。 This invention has been made in view of the foregoing and has its object is to provide low cost of vehicle instrument panel air bag door portion is not scattered by the impact at the time of airbag deployment.

上記の目的を達成するため、この発明は、エアバッグドア部をインストルメントパネル本体の一部で構成するとともに、エアバッグドア部の回動支点となるヒンジ部の構造を工夫したことを特徴とし、具体的には、次のような解決手段を講じた。 In order to achieve the above object, the present invention is characterized in that the airbag door portion is constituted by a part of the instrument panel main body and the structure of the hinge portion serving as a pivotal fulcrum of the airbag door portion is devised. Specifically, the following solutions were taken.

すなわち、請求項1に記載の発明は、車幅方向及び車体前後方向に延びてエアバッグドア部を形成する第1脆弱部と、少なくとも上記エアバッグドア部の車体前方端縁から車体前方に延び湾曲変形可能な板状ヒンジ部)を1つエアバッグドア部の車体前方端縁に沿って該エアバッグドア部より狭い幅で形成する第2脆弱部とがインストルメントパネル本体にその表面から識別できないようにそれぞれ形成され、第2脆弱部形成領域のインストルメントパネル本体裏面の上記ヒンジ部を挟む両側には、固定側に支持されたエアバッグ装置を取り付けるボス部が、上記第1脆弱部の車幅方向に延びる部分に沿う補強リブと、車体前方に延びる上記第2脆弱部に沿う補強リブとで補強された状態で一体に突設され、上記エアバッグ装置には上記ボス部に締結されるフランジ部が設けられ、上記第1脆弱部及び第2脆弱部は上記エアバッグ装置の作動により破断し、上記エアバッグドア部はヒンジ部の一端に一体に接続された状態でインストルメントパネル本体と切り離されて開くとともに、上記ヒンジ部は他端がインストルメントパネル本体に一体に接続された状態でボス部側のインストルメントパネル本体と切り離されて湾曲変形しながらインストルメントパネル本体から起き上がるように構成されていることを特徴とする。 That is, the invention described in claim 1 extends in the vehicle width direction and the vehicle body front-rear direction to form the airbag door portion, and extends at least from the vehicle body front edge of the airbag door portion to the vehicle body front. The instrument panel body is identified from the surface thereof by a second fragile portion that forms a curved deformable plate-like hinge portion) with a width narrower than the airbag door portion along the vehicle body front edge of the airbag door portion. A boss portion for attaching an airbag device supported on the fixed side is formed on both sides of the hinge panel on the back surface of the instrument panel main body in the second fragile portion forming region. The airbag device is integrally protruded in a state of being reinforced by a reinforcing rib along a portion extending in the vehicle width direction and a reinforcing rib along the second fragile portion extending forward of the vehicle body. And the first fragile portion and the second fragile portion are broken by the operation of the airbag device, and the airbag door portion is integrally connected to one end of the hinge portion. The hinge part is separated from the instrument panel body on the boss side while the other end is integrally connected to the instrument panel body, and is bent and deformed from the instrument panel body. It is configured to get up.

請求項2に記載の発明は、請求項1に記載の発明において、エアバッグ装置にはフックが設けられ、第1脆弱部形成領域外側近傍のインストルメントパネル本体裏面には、上記フックが係合する係合孔を有するエアバッグガイド用枠部が設けられていることを特徴とする。The invention according to claim 2 is the invention according to claim 1, wherein the airbag device is provided with a hook, and the hook engages with the back surface of the instrument panel main body near the outside of the first weakened portion forming region. An air bag guide frame having an engaging hole is provided.

請求項に記載の発明は、車幅方向及び車体前後方向に延びてエアバッグドア部を形成する第1脆弱部と、少なくとも上記エアバッグドア部の車体前方端縁から車体前方に延び湾曲変形可能な複数の板状ヒンジ部をエアバッグドア部の車体前方端縁に沿って間隔をあけて形成する第2脆弱部とがインストルメントパネル本体にその表面から識別できないようにそれぞれ形成され、第2脆弱部形成領域の上記ヒンジ部を除く非ヒンジ部のインストルメントパネル本体裏面には、固定側に支持されたエアバッグ装置を取り付けるボス部が、上記第1脆弱部の車幅方向に延びる部分に沿う補強リブと、車体前方に延びる上記第2脆弱部に沿う補強リブとで補強された状態で一体に突設され、上記エアバッグ装置には上記ボス部に締結されるフランジ部が設けられ、上記第1脆弱部及び第2脆弱部は上記エアバッグ装置の作動により破断し、上記エアバッグドア部はヒンジ部の一端に一体に接続された状態でインストルメントパネル本体と切り離されて開くとともに、上記ヒンジ部は他端がインストルメントパネル本体に一体に接続された状態で非ヒンジ部と切り離されて湾曲変形しながらインストルメントパネル本体から起き上がるように構成されていることを特徴とする According to a third aspect of the present invention, there is provided a first fragile portion that extends in the vehicle width direction and the vehicle body longitudinal direction to form an airbag door portion, and at least a curved deformation extending from the vehicle body front edge of the airbag door portion to the vehicle body front. A plurality of plate-like hinge portions that are formed at intervals along the vehicle body front edge of the airbag door portion, and are formed so as to be indistinguishable from the surface of the instrument panel body, 2 A boss portion for attaching an airbag device supported on the fixed side extends in the vehicle width direction of the first fragile portion on the back surface of the instrument panel body of the non-hinge portion excluding the hinge portion in the fragile portion forming region And a flange that is reinforced by the reinforcing rib along the second fragile portion that extends forward of the vehicle body and that is fastened to the boss portion of the airbag device. Is provided, the first weak portion and the second fragile portion is broken by the operation of the air bag system, the air bag door portion is separated from the instrument panel main body in a state of being integrally connected to one end of the hinge portion with open Te, the hinge section and characterized by being configured to get out of the instrument panel main body curving deformation is separated from the non-hinge portion in a state where the other end is integrally connected to the instrument panel main body To do .

請求項に記載の発明は、請求項に記載の発明において、エアバッグ装置にはフックが設けられ、第1脆弱部形成領域外側近傍のインストルメントパネル本体裏面には、上記フックが係合する係合孔を有するエアバッグガイド用枠部が設けられていることを特徴とする。 According to a fourth aspect of the invention, in the invention of the third aspect , the airbag device is provided with a hook, and the hook engages with the back surface of the instrument panel main body near the outside of the first weakened portion forming region. An air bag guide frame having an engaging hole is provided.

請求項1,に係る発明によれば、車両が衝突してエアバッグ装置が作動すると、エアバッグが展開してその展開圧力がエアバッグドア部に作用し、第1脆弱部及び第2脆弱部が破断する。これにより、エアバッグドア部がヒンジ部の一端に一体に接続された状態で内装品本体と切り離されて開くとともに、上記ヒンジ部の他端がインストルメントパネル本体に一体に接続された状態でヒンジ部が請求項では非ヒンジ部と、請求項ではボス部側のインストルメントパネル本体とそれぞれ切り離されて湾曲変形しながらインストルメントパネル本体から起き上がる。 According to the first and third aspects of the present invention, when the airbag device is actuated by the collision of the vehicle, the airbag is deployed and the deployment pressure acts on the airbag door portion, and the first fragile portion and the second fragile portion. The part breaks. As a result, the airbag door part is separated and opened from the interior main body in a state where the airbag door part is integrally connected to one end of the hinge part, and the hinge is opened in a state where the other end of the hinge part is integrally connected to the instrument panel body. parts and non-hinge in claim 3, get out the instrument panel main body curving deformation is respectively disconnected and the instrument panel body according to claim 1, the boss portion.

この際、上記非ヒンジ部又はボス部側のインストルメントパネル本体はボス部及びエアバッグ装置を介して固定側に支持されているので、エアバッグドア部が開いたりヒンジ部が起き上がってもその動作に影響されずに動かず、第2脆弱部が速やかに破断し、しかも、ヒンジ部は連続せずにエアバッグドア部の端縁に沿って間隔をあけて複数形成されていて回動抵抗が少なく、よって、エアバッグドア部を確実に開くことができる。 At this time, since the instrument panel body on the non-hinge part or the boss part side is supported on the fixed side via the boss part and the airbag device, the operation is performed even when the airbag door part is opened or the hinge part is raised. The second fragile portion breaks quickly without being influenced by the movement, and the hinge portion is not continuous, and a plurality of the hinge portions are formed at intervals along the edge of the airbag door portion, and the rotation resistance is reduced. Therefore, the airbag door can be reliably opened.

また、上記ヒンジ部は湾曲変形可能な板状に形成されているため、エアバッグドア部開時に起き上がりながら弧状に湾曲変形してエアバッグの展開圧力を効果的に吸収し、よってエアバッグドア部に対するエアバッグの過剰な展開圧力の作用をなくすとともに、ヒンジ部を千切れないようにすることができ、エアバッグドア部の飛散を防止することができる。   In addition, since the hinge portion is formed in a plate shape that can be bent and deformed, the hinge portion is bent and deformed in an arc shape while rising when the airbag door portion is opened, thereby effectively absorbing the deployment pressure of the airbag. In addition, the excessive deployment pressure of the airbag can be eliminated, the hinge portion can be prevented from being broken, and the airbag door portion can be prevented from being scattered.

さらに、エアバッグドア部をインストルメントパネル本体の一部で構成しているので、特許文献1のような高価な熱可塑性エラストマー材でエアバッグドア部を成形する場合や、特許文献2のようなフラップ部をエアバッグドア部の裏面に溶着する場合に比べて廉価な内装品とすることができる。 Furthermore, since the airbag door part is comprised by a part of instrument panel main body, when forming an airbag door part with an expensive thermoplastic elastomer material like patent document 1, or like patent document 2 Compared with the case where the flap portion is welded to the back surface of the airbag door portion, it is possible to provide an inexpensive interior product.

特に、請求項では、ヒンジ部が1つであるため、第2脆弱部を容易に加工することができる。 In particular, in Claim 1 , since there is one hinge portion, the second fragile portion can be easily processed.

また、請求項では、ボス部を内装品本体裏面に突設するだけで、成形時にアンダーカット部ができず、スライド型を用いずに簡単にエアバッグ装置を取り付ける取付部を成形することができる。 Further, in the first and third aspects, an undercut portion cannot be formed at the time of molding simply by projecting the boss portion on the back surface of the interior product body, and a mounting portion for easily mounting the airbag device is formed without using a slide mold. be able to.

請求項では、エアバッグの展開圧力でエアバッグドア部に開方向への押出力が作用すると、エアバッグ装置のフックがエアバッグガイド用枠部の係合孔に係合し、インストルメントパネル本体の押出方向への動きが規制される。したがって、その後、エアバッグドア部が開いても内装品本体はその動作に影響されずに動かず、第1脆弱部が速やかに破断してエアバッグドア部の展開性能を向上させることができる。また、上記フックを枠部の係合孔に係合させて仮止めした状態で、エアバッグ装置を内装品本体裏面のボス部に取り付けるので、エアバッグ装置の取付作業を容易に行うことができる According to claim 2, 4, the pushing force in the opening direction to the air bag door portion in the deployment pressure of the airbag is applied, the hooks of the air bag device is engaged with the engagement hole of the airbag guide frame portion, Insutoru The movement of the ment panel body in the extrusion direction is restricted. Therefore, after that, even if the airbag door part is opened, the interior product main body does not move without being affected by the operation thereof, and the first fragile part can be quickly broken to improve the deployment performance of the airbag door part. Further, since the airbag device is attached to the boss portion on the back surface of the interior product main body with the hook engaged with the engagement hole of the frame portion and temporarily fixed, the attachment operation of the airbag device can be easily performed. .

以下、この発明の実施の形態について図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(実施形態1)
図1乃至図5は、実施形態1に係るエアバッグドア部付き車両用インストルメントパネルにおけるアッパパネルの右側半分を構成するパネル構成部材1を示。このパネル構成部材1は、左ハンドル車用のもので運転席右隣の助手席側に配置され、例えばポリプロピレン(PP)等の汎用樹脂材で射出成形された単一材からなるパネル構成部材本体(インストルメントパネル本体)3を備えているが、該パネル構成部材本体3は表皮材が基材に一体に被着された2層構造であってもよい。
(Embodiment 1)
1 to 5, shows the panel structure member 1 constituting the right half of the upper panel in the instrument panel for an air bag door portion with the vehicle according to the first embodiment. The panel component member 1 is for a left-hand drive vehicle and is disposed on the passenger seat side adjacent to the right side of the driver's seat. The panel component member body is made of a single material that is injection-molded with a general-purpose resin material such as polypropylene (PP). (Instrument panel main body) 3 is provided, but the panel constituent member main body 3 may have a two-layer structure in which a skin material is integrally attached to a base material.

上記パネル構成部材本体3裏面の助手席対応箇所には、断面略V字状の第1破断溝部5が表面に達しないように型成形により平面視略コの字状に形成され、該第1破断溝部5に対応する薄肉部で平面視略コの字状の第1脆弱部7がパネル構成部材本体3にその表面から識別できないように形成されて、該第1脆弱部7で囲まれる内側に片開きタイプのエアバッグドア部9がパネル構成部材本体3の一部で一体に形成されている。   The first break groove portion 5 having a substantially V-shaped cross section is formed in a portion corresponding to the front passenger seat on the rear surface of the panel component member body 3 so as not to reach the surface. An inner side surrounded by the first fragile portion 7 is formed so that the thin fragile portion 7 corresponding to the rupture groove portion 5 is substantially U-shaped in a plan view so that the first fragile portion 7 cannot be identified from the surface thereof. In addition, a single-opening type air bag door portion 9 is formed integrally with a part of the panel constituent member main body 3.

上記エアバッグドア部9の車体前方端縁には、4本の断面略V字状の第2破断溝部11が、エアバッグドア部9の車体前方端縁から外側に延びるように、かつエアバッグドア部9の車体前方端縁に沿って間隔をあけて表面に達しないように型成形によりそれぞれ形成されている。これら第2破断溝部11のうち両端の2本の第2破断溝部11は、車幅方向内方に向かって略弓状に湾曲して一端が上記第1破断溝部5に連続し、他の2本の第2破断溝部11は略コの字状で両側部分が車幅方向外方に向かって略弓状に湾曲しており、隣り合う第2破断溝部11が車体前後方向に延びる直線を中心に互いに中央を接近させて線対称に配置されている。このように第2破断溝部11を略弓状に湾曲させているのは、エアバッグドア部9開時に破断する勢いを弱め、第2脆弱部13の亀裂が車体前方に必要以上に走らないようにするためである。そして、上記第2破断溝部11に対応する薄肉部で4つの第2脆弱部13がエアバッグドア部9の車体前方端縁に沿って間隔をあけてパネル構成部材本体3にその表面から識別できないように形成されて、隣り合う3箇所の第2脆弱部13間に湾曲変形可能な3つの板状ヒンジ部15がエアバッグドア部9の車体前方端縁に沿ってそれぞれ間隔をあけてパネル構成部材本体3の一部で一体に形成されている。これにより、上記エアバッグドア部9及びヒンジ部15は、第1脆弱部7及び第2脆弱部13がパネル構成部材本体3表面から識別できない,いわゆるシームレスタイプに構成されている。なお、上記第2脆弱部13はエアバッグドア部9の車体前方端縁から内側に延びていてもよい。   At the vehicle body front end edge of the airbag door portion 9, four second fracture grooves 11 having a substantially V-shaped cross section extend outward from the vehicle body front end edge of the airbag door portion 9, and the airbag. The door portions 9 are formed by molding so as not to reach the surface with a space along the front edge of the vehicle body. Of these second breaking groove portions 11, the two second breaking groove portions 11 at both ends are curved in a substantially arcuate shape inward in the vehicle width direction, and one end is continuous with the first breaking groove portion 5, and the other two The second breaking groove 11 of the book is substantially U-shaped, and both side portions are curved in a substantially arcuate shape outward in the vehicle width direction, and the adjacent second breaking groove 11 is centered on a straight line extending in the longitudinal direction of the vehicle body. Are arranged in line symmetry with their centers close to each other. The reason why the second breaking groove 11 is curved in this manner is to weaken the momentum of breaking when the airbag door 9 is opened so that the crack of the second fragile portion 13 does not run more than necessary in front of the vehicle body. It is to make it. And the four 2nd weak parts 13 are spaced apart along the vehicle body front edge of the airbag door part 9 by the thin part corresponding to the said 2nd fracture | rupture groove part 11, and cannot identify the panel structural member main body 3 from the surface. The three plate-like hinge parts 15 that are formed as described above and that can be curved and deformed between three adjacent second weakened parts 13 are spaced apart from each other along the front edge of the vehicle body of the airbag door part 9. A part of the member body 3 is integrally formed. Thereby, the said airbag door part 9 and the hinge part 15 are comprised by what is called a seamless type in which the 1st weak part 7 and the 2nd weak part 13 cannot be distinguished from the panel structural member main body 3 surface. Note that the second fragile portion 13 may extend inward from the vehicle body front edge of the airbag door portion 9.

上記4つの第2脆弱部13のうち両端の2つの第2脆弱部13の車体前方近傍には、凹所16がそれぞれ形成されている。この凹所16があることで、エアバッグドア部9開時に破断する第2脆弱部13の亀裂が車体前方に走っても凹所16で止まり、それ以上車体前方に走るのを防止するようにしている。なお、凹所16に代えて厚肉部を形成してもよい。   A recess 16 is formed in the vicinity of the front of the vehicle body of the two second weakened portions 13 at both ends of the four second weakened portions 13. The presence of the recess 16 prevents the second weakened portion 13 that is broken when the airbag door 9 is opened from stopping at the recess 16 even if the crack runs in the front of the vehicle body, and prevents the vehicle from further running forward. ing. A thick portion may be formed instead of the recess 16.

上記第1脆弱部7を形成する領域A1外側近傍のパネル構成部材本体3裏面には、第1脆弱部7を囲むように側面視略三角形状のエアバッグガイド用枠部17が一体に突設され、該枠部17の後壁部17aには係合孔17bが車幅方向に間隔をあけて5個形成されている。一方、上記第2脆弱部13を形成する領域A2の上記ヒンジ部15を除く4箇所の非ヒンジ部19のパネル構成部材本体3裏面には、ネジ孔(図示せず)を有するボス部21が、上記第1脆弱部7の車幅方向に延びる部分に沿う補強リブ23と、車体前方に延びる上記第2脆弱部13に沿う補強リブ23との3個の補強リブ23で補強された状態で車幅方向に間隔をあけて4個一体に突設されている。 On the back surface of the panel component member body 3 in the vicinity of the outside of the area A1 forming the first fragile portion 7, an airbag guide frame portion 17 having a substantially triangular shape in side view is provided so as to surround the first fragile portion 7. In addition, five engagement holes 17b are formed in the rear wall portion 17a of the frame portion 17 at intervals in the vehicle width direction. On the other hand, above the panel structure member body 3 the rear surface of the non-hinged portion 19 of the four positions excluding the hinge portion 15 of the region A2 forming the second weak portion 13, Rubo scan to having a threaded hole (not shown) The portion 21 is reinforced by three reinforcing ribs 23 including a reinforcing rib 23 extending along the vehicle width direction of the first fragile portion 7 and a reinforcing rib 23 extending along the second fragile portion 13 extending forward of the vehicle body. In this state, four pieces are projected integrally with an interval in the vehicle width direction.

上記枠部17内にはエアバッグ装置25が略上半部分を臨ませて配置されている。該エアバッグ装置25はエアバッグ27を折り畳んだ状態で収容したエアバッグケース29を備え、枠部17の後壁部17a側のエアバッグケース29側面には、5個(図5では1つだけ現れる)のフック31が車幅方向に間隔をあけて固定され、これらフック31を上記後壁部17aの各係合孔17bに挿入してエアバッグ27の展開圧力がエアバッグドア部9に作用した際に各係合孔17bに係合させるようになっている。一方、車体前方側のエアバッグケース29側面にはフランジ部29aが車幅方向に間隔をあけて一体に形成され、該フランジ部29aを上記各ボス部21にネジ33で締結することにより、エアバッグケース29をパネル構成部材本体3裏面にエアバッグドア部9に対応するように取り付けるようになっている。なお、図5では、エアバッグケース29内に収容されているインフレータ等は省略している。   An airbag device 25 is arranged in the frame portion 17 so as to face the upper half portion. The airbag device 25 includes an airbag case 29 that accommodates an airbag 27 in a folded state, and five (one in FIG. 5) are provided on the side of the airbag case 29 on the rear wall portion 17 a side of the frame portion 17. And the hooks 31 are inserted into the respective engagement holes 17b of the rear wall portion 17a, and the deployment pressure of the airbag 27 acts on the airbag door portion 9. When engaged, each engagement hole 17b is engaged. On the other hand, a flange portion 29a is integrally formed on the side surface of the airbag case 29 on the front side of the vehicle body at intervals in the vehicle width direction, and the flange portion 29a is fastened to each boss portion 21 with a screw 33, thereby The bag case 29 is attached to the back surface of the panel component member main body 3 so as to correspond to the airbag door portion 9. In FIG. 5, an inflator and the like housed in the airbag case 29 are omitted.

上記枠部17内にはエアバッグ装置25が略上半部分を臨ませて配置されている。該エアバッグ装置25はエアバッグ27を折り畳んだ状態で収容したエアバッグケース29を備え、枠部17の後壁部17a側のエアバッグケース29側面には、5個(図5では1つだけ現れる)のフック31が車幅方向に間隔をあけて固定され、これらフック31を上記後壁部17aの各係合孔17bに挿入してエアバッグ27の展開圧力がエアバッグドア部9に作用した際に各係合孔17bに係合させるようになっている。一方、車体前方側のエアバッグケース29側面にはフランジ部29aが車幅方向に間隔をあけて一体に形成され、該フランジ部29aを上記各ボス部21にネジ33で締結することにより、エアバッグケース29をパネル構成部材本体3裏面にエアバッグドア部9に対応するように取り付けるようになっている。なお、図5では、エアバッグケース29内に収容されているインフレータ等は省略している。   An airbag device 25 is arranged in the frame portion 17 so as to face the upper half portion. The airbag device 25 includes an airbag case 29 that accommodates an airbag 27 in a folded state, and five (one in FIG. 5) are provided on the side of the airbag case 29 on the rear wall portion 17 a side of the frame portion 17. And the hooks 31 are inserted into the respective engagement holes 17b of the rear wall portion 17a, and the deployment pressure of the airbag 27 acts on the airbag door portion 9. When engaged, each engagement hole 17b is engaged. On the other hand, a flange portion 29a is integrally formed on the side surface of the airbag case 29 on the front side of the vehicle body at intervals in the vehicle width direction, and the flange portion 29a is fastened to each boss portion 21 with a screw 33, thereby The bag case 29 is attached to the back surface of the panel component member main body 3 so as to correspond to the airbag door portion 9. In FIG. 5, an inflator and the like housed in the airbag case 29 are omitted.

上記エアバッグケース29の底面には第1ブラケット35が溶着されている。一方、車幅方向に延びてインストルメントパネルを支持する固定側であるインパネレインフォースメント37には第2ブラケット39の一端が溶着され、第2ブラケット39の他端は、上記第1ブラケット35にボルト41とナット43とで締結されている。これにより、上記エアバッグ装置25がインパネレインフォースメント37に第1及び第2ブラケット35,39を介して連結支持されている。   A first bracket 35 is welded to the bottom surface of the airbag case 29. On the other hand, one end of the second bracket 39 is welded to the instrument panel reinforcement 37 which is a fixed side that extends in the vehicle width direction and supports the instrument panel, and the other end of the second bracket 39 is connected to the first bracket 35. The bolt 41 and the nut 43 are fastened. Thereby, the airbag device 25 is connected and supported to the instrument panel reinforcement 37 via the first and second brackets 35 and 39.

上述の如く構成されたパネル構成部材1では、車両が衝突すると、エアバッグ装置25のエアバッグ27がインフレータの作動によって膨張して枠部17にガイドされながら展開し、その展開圧力でエアバッグドア部9が上方に押圧されて第1脆弱部7及び第2脆弱部13が破断することにより、図1に示すように、エアバッグドア部9はヒンジ部15の一端に一体に接続された状態でパネル構成部材本体3と切り離されて開くとともに、上記ヒンジ部15は他端がパネル構成部材本体3に一体に接続された状態で非ヒンジ部19と切り離されて湾曲変形しながらパネル構成部材本体3から起き上がる。これにより、エアバッグドア部9がヒンジ部15の他端を支点として回動して車体前方上向きに開き、展開したエアバッグ27で助手席の乗員を車体前後方向の衝撃から保護するようになっている。   In the panel constituent member 1 configured as described above, when the vehicle collides, the airbag 27 of the airbag device 25 is inflated by the operation of the inflator and deployed while being guided by the frame portion 17, and the airbag door is developed by the deployment pressure. When the portion 9 is pressed upward and the first fragile portion 7 and the second fragile portion 13 are broken, the airbag door portion 9 is integrally connected to one end of the hinge portion 15 as shown in FIG. The panel component member main body 3 is opened while being separated from the panel component member main body 3 while the other end of the hinge portion 15 is integrally connected to the panel component member main body 3 and is separated from the non-hinge portion 19 while being bent and deformed. Get up from 3. As a result, the airbag door portion 9 rotates about the other end of the hinge portion 15 and opens upward in the front of the vehicle body, and the deployed airbag 27 protects the passenger in the front passenger seat from impacts in the longitudinal direction of the vehicle body. ing.

このように、エアバッグドア部9が開く際、非ヒンジ部19をボス部21及びエアバッグ装置25を介してインパネレインフォースメント37に支持しているので、非ヒンジ部19をエアバッグドア部9の開動作及びヒンジ部15の起き上がり動作に影響されることなく定位置に固定でき、第2脆弱部13を速やかに破断することができる。しかも、ヒンジ部15は連続せずにエアバッグドア部9の車体前方端縁に沿って間隔をあけて複数形成されて回動抵抗が少なくなっている。したがって、エアバッグドア部9を確実に開くことができる。   As described above, when the airbag door portion 9 is opened, the non-hinge portion 19 is supported by the instrument panel reinforcement 37 via the boss portion 21 and the airbag device 25. 9 can be fixed in place without being affected by the opening operation of 9 and the raising operation of the hinge portion 15, and the second fragile portion 13 can be quickly broken. Moreover, the hinge portion 15 is not continuous but is formed in plural along the front end edge of the vehicle body of the airbag door portion 9 so as to reduce the rotational resistance. Therefore, the airbag door part 9 can be opened reliably.

また、上記ヒンジ部15を湾曲変形可能な板状に形成しているので、エアバッグドア部9開時にヒンジ部15を起き上がらせながら弧状に湾曲変形させてエアバッグ27の展開圧力を効果的に吸収することができる。これにより、エアバッグドア部9にエアバッグ27の展開圧力が過剰に作用しないようにすることができるとともに、ヒンジ部15を千切れないようにすることができ、エアバッグドア部9の飛散を防止することができる。   Further, since the hinge portion 15 is formed in a plate shape that can be bent and deformed, when the airbag door portion 9 is opened, the hinge portion 15 is raised and curved and deformed in an arc shape, thereby effectively expanding the deployment pressure of the airbag 27. Can be absorbed. As a result, the deployment pressure of the airbag 27 can be prevented from acting excessively on the airbag door portion 9, and the hinge portion 15 can be prevented from being broken, thereby preventing the airbag door portion 9 from being scattered. Can be prevented.

さらに、エアバッグドア部9をパネル構成部材本体3の一部で構成しているので、特許文献1のような高価な熱可塑性エラストマー材でエアバッグドア部を成形する場合や、特許文献2のようなフラップ部をエアバッグドア部の裏面に溶着する場合に比べて廉価なパネル構成部材1とすることができる。   Furthermore, since the airbag door part 9 is comprised by a part of panel structural member main body 3, when molding an airbag door part with an expensive thermoplastic elastomer material like patent document 1, or patent document 2 Compared with the case where such a flap portion is welded to the back surface of the airbag door portion, the panel component 1 can be made inexpensive.

加えて、ボス部21をパネル構成部材本体3裏面に突設するだけで、成形時にアンダーカット部ができず、スライド型を用いずに簡単にエアバッグ装置25を取り付ける取付部を成形することができる。   In addition, by simply projecting the boss portion 21 on the back surface of the panel component member body 3, an undercut portion cannot be formed at the time of molding, and an attachment portion for easily attaching the airbag device 25 can be molded without using a slide mold it can.

さらにまた、エアバッグ27の展開圧力でエアバッグドア部9に開方向への押出力が作用した際、エアバッグ装置25のフック31を枠部17の係合孔17bに係合させることで、パネル構成部材本体3が押出方向に動くのを規制することができる。したがって、その後、エアバッグドア部9が開いてもパネル構成部材本体3をその動作に影響されることなく動かないようにでき、第1脆弱部7を速やかに破断してエアバッグドア部9の展開性能を向上させることができる。また、上記フック31を枠部17の係合孔17bに係合させて仮止めした状態で、エアバッグ装置25をパネル構成部材本体3裏面のボス部21に取り付けるので、エアバッグ装置25の取付作業を容易に行うことができる。   Furthermore, when a pushing force in the opening direction acts on the airbag door portion 9 by the deployment pressure of the airbag 27, the hook 31 of the airbag device 25 is engaged with the engagement hole 17b of the frame portion 17, The panel component member body 3 can be restricted from moving in the extrusion direction. Therefore, even if the airbag door portion 9 is subsequently opened, the panel component member main body 3 can be prevented from moving without being affected by the operation thereof, and the first fragile portion 7 can be quickly broken to remove the airbag door portion 9. Deployment performance can be improved. Further, since the airbag device 25 is attached to the boss portion 21 on the back surface of the panel component member body 3 with the hook 31 engaged with the engagement hole 17b of the frame portion 17 and temporarily fixed, the attachment of the airbag device 25 is performed. Work can be done easily.

(実施形態2)
図6乃至図11は実施形態2に係るパネル構成部材1を示す。実施形態2では、実施形態1のエアバッグドア部9が片開きタイプであるのに対し、エアバッグドア部9が車体前後方向上向きに開く観音開きタイプであり、これに関連にして第1脆弱部7(第1破断溝部5)が平面視略H字形でなっているとともに、第2脆弱部13(第2破断溝部11)がエアバッグドア部9の車体前方端縁及び車体後方端縁の両側に設けられている。また、車体前後方向に直線状に延びる枠部17がエアバッグドア部9の車幅方向両端外側近傍に設けられ、各々の枠部17に係合孔17bが3個ずつ形成されている。これに対応してエアバッグケース29の車幅方向両面には3個のフック31がそれぞれ設けられている。なお、実施形態2では、第2脆弱部13の亀裂が車体前方に必要以上に走らないようにするための凹所16を設けていないが、実施形態1と同様に設けてもよい。そのほかは実施形態1と同一に構成されているので、同一の構成箇所には同一の符号を付して詳細な説明を省略する。
(Embodiment 2)
6 to 11 show the panel component 1 according to the second embodiment. In the second embodiment, the airbag door portion 9 of the first embodiment is a single opening type, whereas the airbag door portion 9 is a double door opening type that opens upward in the vehicle body front-rear direction. 7 (first breaking groove portion 5) is substantially H-shaped in plan view, and the second fragile portion 13 (second breaking groove portion 11) is on both sides of the vehicle body front edge and the vehicle body rear edge of the airbag door portion 9. Is provided. Further, frame portions 17 that extend linearly in the longitudinal direction of the vehicle body are provided in the vicinity of the outer sides in the vehicle width direction of the airbag door portion 9, and three engagement holes 17 b are formed in each frame portion 17. Correspondingly, three hooks 31 are provided on both sides of the airbag case 29 in the vehicle width direction. In the second embodiment, the recess 16 for preventing the crack of the second fragile portion 13 from running more than necessary in front of the vehicle body is not provided, but it may be provided similarly to the first embodiment. The rest of the configuration is the same as that of the first embodiment, and therefore, the same components are denoted by the same reference numerals and detailed description thereof is omitted.

したがって、実施形態2では、実施形態1と同様の作用効果を奏することができる。   Therefore, in the second embodiment, the same effect as that of the first embodiment can be achieved.

(実施形態3)
図12及び図13は実施形態3に係るパネル構成部材1を示す。実施形態3では、実施形態1と同様にエアバッグドア部9が片開きタイプであるが、以下に説明する実施形態3の特徴とする構成は、実施形態2のような車体前後方向上向きに開く観音開きタイプにも適用することができるものである。
(Embodiment 3)
12 and 13 show the panel component 1 according to the third embodiment. In the third embodiment, the airbag door portion 9 is a single-opening type as in the first embodiment. However, the characteristic configuration of the third embodiment described below opens upward in the vehicle longitudinal direction as in the second embodiment. It can also be applied to the double door type.

実施形態3の特徴とする構成は、第2脆弱部形成領域A2の隣り合うヒンジ部15間の非ヒンジ部19がエアバッグ装置25の作動によりパネル構成部材本体3から島状に分離するように第2脆弱部13が上記非ヒンジ部19を連続して囲んでいることである。図12中、9aは非ヒンジ部19の刳り抜き部である。なお、非ヒンジ部19がエアバッグ装置25の作動によりパネル構成部材本体3から島状に分離するのであれば、上記のように非ヒンジ部19を連続して囲まずに僅かに間隔をあけた非連続状態で囲んでいてもよい。そのほかは実施形態1と同一に構成されているので、同一の構成箇所には同一の符号を付して詳細な説明を省略する。   The configuration characteristic of the third embodiment is such that the non-hinge portion 19 between the adjacent hinge portions 15 of the second fragile portion forming region A2 is separated from the panel component member body 3 into an island shape by the operation of the airbag device 25. The second fragile portion 13 continuously surrounds the non-hinge portion 19. In FIG. 12, 9 a is a hollowed portion of the non-hinge portion 19. If the non-hinge part 19 is separated from the panel component member main body 3 into an island shape by the operation of the airbag device 25, the non-hinge part 19 is slightly spaced without continuously surrounding the non-hinge part 19 as described above. It may be enclosed in a discontinuous state. The rest of the configuration is the same as that of the first embodiment, and therefore, the same components are denoted by the same reference numerals and detailed description thereof is omitted.

したがって、実施形態3では、実施形態1と同様の作用効果に加えて、エアバッグドア部9が開くと、第2脆弱部形成領域A2の隣り合うヒンジ部15間の非ヒンジ部19がパネル構成部材本体3から島状に分離することで、エアバッグドア部9の回動支点が非ヒンジ部19の外側に位置して実施形態1に比べてエアバッグドア部9から大きく離れ、その分だけエアバッグドア部9を大きく開くことができ、エアバッグドア部9の展開性能をさらに向上させることができる。   Therefore, in the third embodiment, in addition to the same effects as those of the first embodiment, when the airbag door portion 9 is opened, the non-hinge portion 19 between the adjacent hinge portions 15 of the second fragile portion forming region A2 is a panel configuration. By separating from the member main body 3 in an island shape, the rotation fulcrum of the airbag door portion 9 is located outside the non-hinge portion 19 and is far away from the airbag door portion 9 as compared with the first embodiment. The airbag door portion 9 can be greatly opened, and the deployment performance of the airbag door portion 9 can be further improved.

(実施形態4)
図14及び図15は実施形態4に係るパネル構成部材1を示す。実施形態4では、実施形態1と同様にエアバッグドア部9が片開きタイプであるが、以下に説明する実施形態4の特徴とする構成も、実施形態2のような車体前後方向上向きに開く観音開きタイプにも適用することができるものである。
(Embodiment 4)
14 and 15 show the panel component 1 according to the fourth embodiment. In the fourth embodiment, the airbag door portion 9 is a single-open type as in the first embodiment. However, the characteristic features of the fourth embodiment described below also open upward in the vehicle longitudinal direction as in the second embodiment. It can also be applied to the double door type.

実施形態4の特徴とする構成は、板状ヒンジ部15が1つであり、該ヒンジ部15をエアバッグドア部9の端縁に沿って該エアバッグドア部9より狭い幅で第2脆弱部13により形成していることである。したがって、ボス部21は第2脆弱部形成領域A2のパネル構成部材本体3裏面のヒンジ部15を挟む両側に1個ずつ形成されている。そして、ヒンジ部15は他端がパネル構成部材本体3に一体に接続された状態でボス部21側のパネル構成部材本体3と切り離されて湾曲変形しながらパネル構成部材本体3から起き上がるようになっている。   The feature of the fourth embodiment is that there is one plate-like hinge portion 15, and the hinge portion 15 is narrower than the airbag door portion 9 along the edge of the airbag door portion 9 and has a second weakness. It is formed by the part 13. Accordingly, one boss portion 21 is formed on each side of the second fragile portion forming region A2 on both sides of the hinge portion 15 on the back surface of the panel constituent member main body 3. The hinge 15 is raised from the panel component main body 3 while being bent and deformed by being separated from the panel component main body 3 on the boss portion 21 side with the other end integrally connected to the panel component main body 3. ing.

したがって、実施形態4では、実施形態1と同様の作用効果を奏することができることに加え、ヒンジ部15が1つであるため、第2脆弱部13の加工を容易に行うことができる。   Therefore, in Embodiment 4, in addition to having the same operational effects as Embodiment 1, since there is one hinge portion 15, the second fragile portion 13 can be easily processed.

なお、上記の各実施形態では、第1脆弱部7及び第2脆弱部13をパネル構成部材本体3裏面に型成形により第1破断溝部5及び第2破断溝部11を形成することで薄肉化して破断し易くしたが、レーザー加工や熱刃により破断し易くしてもよい。   In each of the above embodiments, the first fragile portion 7 and the second fragile portion 13 are thinned by forming the first rupture groove portion 5 and the second rupture groove portion 11 by molding on the back surface of the panel constituent member body 3. Although it is easy to break, it may be easily broken by laser processing or a hot blade.

また、上記の各実施形態では、エアバッグドア部9をパネル構成部材本体3と一体に形成したが、パネル構成部材本体3に開口部を形成し、この開口部に別途成形したエアバッグドア部9を有するパネル材を嵌め込んで、エアバッグドア部9をパネル構成部材本体3と別体に構成してもよく、エアバッグドア部9をインストルメントパネルに一体に形成してもよい Moreover, in each said embodiment, although the airbag door part 9 was formed integrally with the panel structural member main body 3, the opening part was formed in the panel structural member main body 3, and the airbag door part separately shape | molded in this opening part The airbag door part 9 may be comprised separately from the panel structural member main body 3, and the airbag door part 9 may be integrally formed in an instrument panel .

この発明は、エアバッグドア部付車両インストルメントパネルに適用可能である。 This invention can be applied to the instrument panel for a vehicle with the air bag door portion.

実施形態1に係るパネル構成部材においてエアバッグドア部が開いた状態の斜視図である。It is a perspective view in the state where the airbag door part opened in the panel constituent member concerning Embodiment 1. 実施形態1に係るパネル構成部材においてエアバッグドア部が閉じた状態の平面図である。It is a top view in the state where the airbag door part closed in the panel constituent member concerning Embodiment 1. 実施形態1に係るパネル構成部材においてエアバッグドア部が閉じた状態でかつ第1脆弱部及び第2脆弱部のみを示した斜視図である。It is the perspective view which showed the state which the airbag door part closed in the panel structural member which concerns on Embodiment 1, and showed only the 1st weak part and the 2nd weak part. 実施形態1に係るパネル構成部材において枠部及びボス部を実線でパネル構成部材を仮想線で示した斜視図である。In the panel structural member which concerns on Embodiment 1, it is the perspective view which showed the frame part and the boss | hub part with the continuous line, and showed the panel structural member with the virtual line. 図4のV−V線に相当する断面図である。FIG. 5 is a cross-sectional view corresponding to the line VV in FIG. 4. 実施形態2の図1相当図である。FIG. 3 is a diagram corresponding to FIG. 実施形態2の図2相当図である。FIG. 3 is a diagram corresponding to FIG. 2 of the second embodiment. 実施形態2の図3相当図である。FIG. 4 is a diagram corresponding to FIG. 3 of the second embodiment. 実施形態2の図4相当図である。FIG. 5 is a diagram corresponding to FIG. 4 of the second embodiment. 実施形態2の図5相当図である。FIG. 6 is a diagram corresponding to FIG. 5 of the second embodiment. 図9のXI−XI線に相当する断面図である。It is sectional drawing corresponded in the XI-XI line of FIG. 実施形態3の図1相当図である。FIG. 6 is a view corresponding to FIG. 1 of Embodiment 3. 実施形態3の図3相当図である。FIG. 4 is a diagram corresponding to FIG. 3 of the third embodiment. 実施形態4の図1相当図である。FIG. 6 is a view corresponding to FIG. 1 of Embodiment 4. 実施形態4の図3相当図である。FIG. 6 is a view corresponding to FIG. 3 of the fourth embodiment.

1 パネル構成部材(インストルメントパネル
3 パネル構成部材本体(インストルメントパネル本体)
9 エアバッグドア部
7 第1脆弱部
13 第2脆弱部
15 ヒンジ部
17 枠部
17b 係合孔
19 非ヒンジ部
25 エアバッグ装置
21 ボス
23 補強リブ
29a フランジ部
31 フック
37 インパネレインフォースメント(固定側)
A1 第1脆弱部形成領域
A2 第2脆弱部形成領域
1 Panel component ( instrument panel )
3 Panel component body ( instrument panel body)
9 Airbag door portion 7 First fragile portion 13 Second fragile portion 15 Hinge portion 17 Frame portion 17b Engagement hole 19 Non-hinge portion 25 Airbag device 21 Boss portion
23 Reinforcement rib 29a Flange part 31 Hook 37 Instrument panel reinforcement (fixed side)
A1 1st weak part formation area A2 2nd weak part formation area

Claims (4)

車幅方向及び車体前後方向に延びてエアバッグドア部(9)を形成する第1脆弱部(7)と、少なくとも上記エアバッグドア部(9)の車体前方端縁から車体前方に延び湾曲変形可能な板状ヒンジ部(15)を1つエアバッグドア部(9)の車体前方端縁に沿って該エアバッグドア部(9)より狭い幅で形成する第2脆弱部(13)とがインストルメントパネル本体(3)にその表面から識別できないようにそれぞれ形成され、A first fragile portion (7) that extends in the vehicle width direction and the vehicle body front-rear direction to form an airbag door portion (9), and at least a curved deformation extending from the vehicle body front edge of the airbag door portion (9) to the vehicle body front. A second fragile portion (13) that forms one possible plate-like hinge portion (15) with a width narrower than the airbag door portion (9) along the front edge of the vehicle body of the airbag door portion (9) It is formed in the instrument panel body (3) so that it cannot be identified from its surface,
第2脆弱部形成領域(A2)のインストルメントパネル本体(3)裏面の上記ヒンジ部(15)を挟む両側には、固定側(37)に支持されたエアバッグ装置(25)を取り付けるボス部(21)が、上記第1脆弱部(7)の車幅方向に延びる部分に沿う補強リブ(23)と、車体前方に延びる上記第2脆弱部(13)に沿う補強リブ(23)とで補強された状態で一体に突設され、The boss part which attaches the airbag device (25) supported by the fixed side (37) on both sides of the instrument panel body (3) on the back side of the second weakened part forming area (A2) sandwiching the hinge part (15) (21) is a reinforcing rib (23) along a portion extending in the vehicle width direction of the first fragile portion (7) and a reinforcing rib (23) along the second fragile portion (13) extending forward of the vehicle body. Projected integrally in a reinforced state,
上記エアバッグ装置(25)には上記ボス部(21)に締結されるフランジ部(29a)が設けられ、The airbag device (25) is provided with a flange portion (29a) fastened to the boss portion (21),
上記第1脆弱部(7)及び第2脆弱部(13)は上記エアバッグ装置(25)の作動により破断し、上記エアバッグドア部(9)はヒンジ部(15)の一端に一体に接続された状態でインストルメントパネル本体(3)と切り離されて開くとともに、上記ヒンジ部(15)は他端がインストルメントパネル本体(3)に一体に接続された状態でボス部(21)側のインストルメントパネル本体(3)と切り離されて湾曲変形しながらインストルメントパネル本体(3)から起き上がるように構成されていることを特徴とするエアバッグドア部付車両用インストルメントパネル。The first fragile portion (7) and the second fragile portion (13) are broken by the operation of the airbag device (25), and the airbag door portion (9) is integrally connected to one end of the hinge portion (15). In this state, the instrument panel body (3) is separated and opened, and the hinge part (15) is connected to the instrument panel body (3) with the other end integrally connected to the boss part (21) side. An instrument panel for a vehicle with an airbag door, wherein the instrument panel is configured to rise from the instrument panel body (3) while being deformed by being separated from the instrument panel body (3).
請求項1に記載のエアバッグドア部付き車両用インストルメントパネルにおいて、In the instrument panel for vehicles with an airbag door part according to claim 1,
エアバッグ装置(25)にはフック(31)が設けられ、The airbag device (25) is provided with a hook (31),
第1脆弱部形成領域(A1)外側近傍のインストルメントパネル本体(3)裏面には、上記フック(31)が係合する係合孔(17b)を有するエアバッグガイド用枠部(17)が設けられていることを特徴とするエアバッグドア部付き車両用インストルメントパネル。An airbag guide frame (17) having an engagement hole (17b) with which the hook (31) is engaged is formed on the back surface of the instrument panel body (3) near the outside of the first weakened portion forming area (A1). An instrument panel for a vehicle with an air bag door, which is provided.
車幅方向及び車体前後方向に延びてエアバッグドア部(9)を形成する第1脆弱部(7)と、少なくとも上記エアバッグドア部(9)車体前方端縁から車体前方に延び湾曲変形可能な複数の板状ヒンジ部(15)をエアバッグドア部(9)車体前方端縁に沿って間隔をあけて形成する第2脆弱部(13)とがインストルメントパネル本体(3)にその表面から識別できないようにそれぞれ形成され、
第2脆弱部形成領域(A2)の上記ヒンジ部(15)を除く非ヒンジ部(19)インストルメントパネル本体(3)裏面には、固定側(37)に支持されたエアバッグ装置(25)を取り付けるボス部(21)が、上記第1脆弱部(7)の車幅方向に延びる部分に沿う補強リブ(23)と、車体前方に延びる上記第2脆弱部(13)に沿う補強リブ(23)とで補強された状態で一体に突設され、
上記エアバッグ装置(25)には上記ボス部(21)に締結されるフランジ部(29a)が設けられ、
上記第1脆弱部(7)及び第2脆弱部(13)は上記エアバッグ装置(25)の作動により破断し、上記エアバッグドア部(9)はヒンジ部(15)の一端に一体に接続された状態でインストルメントパネル本体(3)と切り離されて開くとともに、上記ヒンジ部(15)は他端がインストルメントパネル本体(3)に一体に接続された状態で非ヒンジ部(19)と切り離されて湾曲変形しながらインストルメントパネル本体(3)から起き上がるように構成されていることを特徴とするエアバッグドア部付車両用インストルメントパネル。
A first fragile portion (7) that extends in the vehicle width direction and the vehicle body front-rear direction to form an airbag door portion (9) , and at least a curved deformation extending from the vehicle body front edge of the airbag door portion (9) to the vehicle body front. The instrument panel body (3) has a second weakened part (13) that forms a plurality of possible plate-like hinge parts (15) at intervals along the front edge of the vehicle body of the airbag door part (9). Each is formed indistinguishable from its surface,
On the back surface of the instrument panel body (3) of the non-hinge part (19) excluding the hinge part (15) in the second fragile part forming area (A2) , the airbag device (25 ) supported on the fixed side (37) ) Is attached to the reinforcing rib (23) along the portion extending in the vehicle width direction of the first fragile portion (7), and the reinforcing rib along the second fragile portion (13) extending forward of the vehicle body. (23) and projecting integrally in a reinforced state,
The airbag device (25) is provided with a flange portion (29a) fastened to the boss portion (21) ,
The first fragile portion (7) and the second fragile portion (13) are broken by the operation of the airbag device (25) , and the airbag door portion (9) is integrally connected to one end of the hinge portion (15). The instrument panel body (3) is separated and opened, and the hinge part (15) is connected to the non-hinge part (19) with the other end integrally connected to the instrument panel body (3). An instrument panel for a vehicle with an airbag door, wherein the instrument panel is configured to rise up from an instrument panel body (3) while being separated and curved and deformed .
請求項に記載のエアバッグドア部付き車両用インストルメントパネルにおいて、
エアバッグ装置(25)にはフック(31)が設けられ、
第1脆弱部形成領域(A1)外側近傍のインストルメントパネル本体(3)裏面には、上記フック(31)が係合する係合孔(17b)を有するエアバッグガイド用枠部(17)が設けられていることを特徴とするエアバッグドア部付き車両用インストルメントパネル。
In the instrument panel for vehicles with an airbag door part according to claim 3 ,
The airbag device (25 ) is provided with a hook (31) ,
An airbag guide frame (17) having an engagement hole (17b) with which the hook (31) is engaged is formed on the back surface of the instrument panel body (3) near the outside of the first weakened portion forming area (A1). An instrument panel for a vehicle with an air bag door, which is provided .
JP2006211119A 2005-08-23 2006-08-02 Instrument panel for vehicle with airbag door Expired - Fee Related JP4745913B2 (en)

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