JPH09301013A - Structure for car interior side member integrally having air bag door - Google Patents
Structure for car interior side member integrally having air bag doorInfo
- Publication number
- JPH09301013A JPH09301013A JP8202853A JP20285396A JPH09301013A JP H09301013 A JPH09301013 A JP H09301013A JP 8202853 A JP8202853 A JP 8202853A JP 20285396 A JP20285396 A JP 20285396A JP H09301013 A JPH09301013 A JP H09301013A
- Authority
- JP
- Japan
- Prior art keywords
- airbag
- side member
- base material
- reinforcing resin
- airbag door
- 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.)
- Pending
Links
- 229920005989 resin Polymers 0.000 claims abstract description 149
- 239000011347 resin Substances 0.000 claims abstract description 149
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 90
- 239000000463 material Substances 0.000 claims description 76
- 239000006260 foam Substances 0.000 claims description 30
- 238000005452 bending Methods 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract 2
- 230000009172 bursting Effects 0.000 abstract 1
- 238000009499 grossing Methods 0.000 abstract 1
- 210000003491 skin Anatomy 0.000 description 38
- 238000000465 moulding Methods 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Air Bags (AREA)
- Instrument Panels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、エアバッグドア
を一体に有する車室側部材の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a vehicle interior side member integrally having an airbag door.
【０００２】[0002]
【従来の技術】近年、自動車においては助手席にもエア
バッグ装置が設けられるようになった。このエアバッグ
装置は、エアバッグと、そのエアバッグが収納されるキ
ャニスタと呼ばれる収容ケースと、作動装置（インフレ
ータ）とからなり、助手席前面のインストルメントパネ
ル等からなる車室側部材の裏側に取り付けられる。エア
バッグ装置が設けられたインストルメントパネルのエア
バッグ部は、エアバッグのための展開開口部を有し、こ
の開口部は平時には前記インストルメントパネルと同種
の外観をもったエアバッグドアによって覆われている。
そして、一旦衝突などによって自動車が大きな衝撃を受
けた時には、前記エアバッグケース内に収納されている
エアバッグが作動して膨張し、エアバッグドアを内側か
ら押して開口させる。2. Description of the Related Art In recent years, airbag devices have come to be installed in passenger seats of automobiles. This airbag device includes an airbag, a storage case called a canister in which the airbag is stored, and an operating device (inflator). The airbag device is provided on the back side of a passenger compartment side member such as an instrument panel on the front of the passenger seat. It is attached. The airbag section of the instrument panel provided with the airbag device has a deployment opening for the airbag, which is normally covered by an airbag door having an appearance similar to that of the instrument panel. It is being appreciated.
Then, when the automobile receives a large impact due to a collision or the like, the airbag housed in the airbag case is activated and inflates to push the airbag door from the inside to open it.
【０００３】しかし、エアバッグ用展開開口部とエアバ
ッグドアとが別体によって構成される構造のものにあっ
ては、製品寸法のわずかなばらつきあるいは使用に伴う
製品収縮などによりエアバッグドア周囲に隙間を生じ易
く、インストルメントパネルの外観が損なわれるおそれ
がある。また、後工程によってインストルメントパネル
のエアバッグ用展開開口部にエアバッグドアを取り付け
ることは工数を増大させることになる。However, in the structure in which the airbag deployment opening and the airbag door are formed separately, the periphery of the airbag door may be surrounded by slight variations in product dimensions or product shrinkage due to use. Gaps are likely to occur and the appearance of the instrument panel may be impaired. Also, attaching the airbag door to the airbag deployment opening of the instrument panel in a subsequent process increases the number of steps.
【０００４】そこで、最近では図１９およびそのｆ−ｆ
断面である図２０に示すインストルメントパネル１６０
のように、ポリプロピレン樹脂等からなる硬質樹脂１６
１裏面にノッチ状の薄肉の破断予定部１６２を、この例
のように平面形状が略Ｕ字状に、あるいは図示しない略
Ｈ字状となるように形成してエアバッグドアＤａを区画
形成するとともに、該エアバッグドアＤａ裏面にアルミ
板や鉄板などの補強板１６３を裏打ちしたものが提案さ
れている。符合１６４は破断予定部１６２の端部間で構
成されるヒンジ部、Ａはエアバッグ、Ｃはエアバッグ収
容ケースである。この構造によれば、図２１に示すよう
に、エアバッグＡが膨張した際に前記インストルメント
パネル１６０の破断予定部１６２が破断し、エアバッグ
ドアＤａが開く。１６２ａは前記破断予定部１６２が破
断した部分であるTherefore, recently, FIG. 19 and its f-f
An instrument panel 160 shown in FIG. 20, which is a cross section.
Hard resin 16 made of polypropylene resin, etc.
1. A notch-like thin-walled breakable portion 162 is formed on the back surface so that the planar shape thereof is substantially U-shaped as in this example, or is substantially H-shaped (not shown) to partition the airbag door Da. At the same time, it is proposed that the back surface of the airbag door Da is lined with a reinforcing plate 163 such as an aluminum plate or an iron plate. Reference numeral 164 is a hinge portion formed between the ends of the breakable portion 162, A is an airbag, and C is an airbag housing case. With this structure, as shown in FIG. 21, when the airbag A is inflated, the breakable portion 162 of the instrument panel 160 is broken and the airbag door Da is opened. 162a is a part where the planned breaking portion 162 is broken.
【０００５】また、図２２およびその一部を拡大する図
２３に示すように、ポリプロピレン樹脂等の硬質樹脂か
らなってエアバッグ用展開開口部Ｏの形成された基材１
７４に、ポリウレタン発泡体等の合成樹脂発泡体１７１
が一体に積層形成され、さらにその表面が合成樹脂製表
皮１７２で覆われてなる車室側部材（インストルメント
パネル）Ｐが知られている。符合１７３は表皮１７２に
形成された薄肉破断予定部、１７５はエアバグドア用芯
材、１７６は車室側部材Ｐとエアバッグ収容ケースＣと
を固定する取付け部材、Ｄはエアバッグドア、Ｔは発泡
体１７１の破断予定部である。この構造によれば、図２
４に示すように、エアバッグ膨張時にエアバッグドアＤ
が裏側からエアバッグＡにより押され、金属板等からな
るエアバッグドア用芯材１７５を押し上げ、その押圧力
によって発泡体の破断予定部Ｔおよび表皮１７２の薄肉
破断予定部１７３が破断してエアバッグドアＤが開く。
符合Ｔａ，Ｔｂは分断された発泡体の破断部、１７７は
ヒンジ部である。Further, as shown in FIG. 22 and a partially enlarged view of FIG. 23, a base material 1 made of a hard resin such as polypropylene resin and having a deployment opening O for an airbag is formed.
74, synthetic resin foam 171 such as polyurethane foam
There is known a vehicle-cabin-side member (instrument panel) P which is integrally laminated and whose surface is covered with a synthetic resin skin 172. Reference numeral 173 is a thin-walled breakable portion formed on the skin 172, 175 is a core material for an air bag door, 176 is an attachment member for fixing the passenger compartment side member P and the air bag accommodating case C, D is an air bag door, and T is foaming. It is a part to be broken of the body 171. According to this structure, FIG.
As shown in 4, when the airbag is inflated, the airbag door D
Is pushed by the airbag A from the back side and pushes up the air bag door core material 175 made of a metal plate or the like, and the pushing force ruptures the planned breakage portion T of the foam and the thin breakage planned portion 173 of the skin 172 to break the air. The bag door D opens.
Reference numerals Ta and Tb are fractured portions of the separated foamed material, and 177 is a hinge portion.
【０００６】しかし、前者のタイプ、すなわち車室側部
材が硬質樹脂からなるものにあっては、エアバッグの膨
張によって速やかに破断するよう、破断予定部の厚みを
極めて薄くしなけれならず、成形性との兼ね合いでその
設計が容易ではなかった。しかも、破断予定部の厚みを
極めて薄くすると、平時に破断予定部表面が乗員等によ
って押圧されると、該破断予定部に亀裂等を生じるおそ
れがある。However, in the former type, that is, in the case where the vehicle interior side member is made of hard resin, the thickness of the portion to be broken must be extremely thin so that the airbag is quickly broken due to the expansion, It was not easy to design because of trade-offs. Moreover, if the thickness of the portion to be broken is extremely thin, when the surface of the portion to be broken is pressed by an occupant or the like in the flat state, a crack or the like may occur in the portion to be broken.
【０００７】一方、後者のタイプ、すなわち車室側部材
が、硬質樹脂製の基材と発泡体と表皮からなるものにあ
っては、基材に形成されたエアバッグ用展開開口部に鉄
板等のエアバッグドア用芯材を確実に固定しなければな
らないため、成形作業が煩雑であり、またコスト高とな
る問題があった。On the other hand, in the latter type, that is, in the case where the vehicle interior side member is composed of a hard resin base material, a foam and a skin, an iron plate or the like is formed in the airbag deployment opening formed in the base material. Since the core material for the airbag door must be securely fixed, the molding work is complicated and the cost is increased.
【０００８】さらに、前記のいずれのタイプにおいて
も、エアバッグは膨張してエアバッグドアを押し広げた
後、所定時間経過するとしぼんでしまう。その際、エア
バッグドアは完全に閉じることなく開かれたままとな
り、エアバッグドアＤａ，Ｄの破断部１６２ａ，Ｔａが
上方を向いた状態となる。このエアバッグドアの破断部
は硬質樹脂の破断面、あるいはエアバッグドア用芯材１
７５の端面が露出しているため硬く、好ましいものでは
なかった。Further, in any of the above-mentioned types, the airbag is inflated and deflated after a predetermined time has elapsed after the airbag door was pushed open. At that time, the airbag door remains open without being completely closed, and the break portions 162a, Ta of the airbag doors Da, D are directed upward. The broken portion of the airbag door is a fracture surface of hard resin or the core material 1 for the airbag door.
Since the end face of 75 was exposed, it was hard and not preferable.
【０００９】[0009]
【発明が解決しようとする課題】この発明は、前記の点
に鑑みなされたもので、エアバッグの膨張によって破断
予定部が速やかに破断してエアバッグドアが開き、また
平時には破断予定部に亀裂を生じ難く、さらにはエアバ
ッグドアの破断部における硬質樹脂端面がそれより柔軟
な樹脂で隠蔽された安全性の高い車室側部材の構造を提
供するものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and a portion to be ruptured is promptly ruptured by the expansion of the airbag to open the airbag door. (EN) It is possible to provide a structure of a highly safe vehicle interior side member in which cracks are unlikely to occur and a hard resin end surface at a broken portion of an airbag door is covered with a softer resin.
【００１０】[0010]
【課題を解決するための手段】請求項１の発明は、樹脂
製車室側部材に略Ｈ字状または略Ｕ字状等に破断予定部
が形成され、エアバッグ膨張時に前記破断予定部から破
断して開くエアバックドアを一体に有する車室側部材に
おいて、硬質樹脂からなる車室側部材本体と、該車室側
部材本体の硬質樹脂よりも柔軟な樹脂よりなって前記エ
アバッグドアの裏側に略相当する車室側部材本体の裏面
に一体に設けられ、前記破断予定部で車室側部材本体を
分断するように車室側部材本体表面側へ屈曲し、該屈曲
部が薄肉とされて車室側部材本体表面に露出している補
強樹脂部材とよりなることを特徴とするエアバッグドア
を一体に有する車室側部材の構造に係る。According to a first aspect of the present invention, a rupture-scheduled portion is formed in a substantially H-shaped or U-shaped shape on a resin-made passenger compartment member, and the rupture-scheduled portion is formed from the ruptured portion when the airbag is inflated. In a vehicle interior side member integrally having an airbag door that breaks and opens, a vehicle interior side member main body made of a hard resin and a resin softer than the hard resin of the vehicle interior side member main body of the airbag door It is integrally provided on the back surface of the passenger compartment member main body substantially corresponding to the back side, and is bent toward the passenger compartment member main body front surface side so as to divide the passenger compartment member main body at the breakable portion, and the bent portion is thin. And a reinforcing resin member exposed on the surface of the main body of the passenger compartment member, the structure of the passenger compartment member integrally having an airbag door.
【００１１】この請求項１に記載された発明にあって
は、車室側部材が、その外形を定める硬質樹脂製の車室
側部材本体と、その車室側部材本体裏面のエアバッグド
ア裏面部分に相当する部分に設けられた補強樹脂部材と
よりなり、エアバッグの膨張によりエアバッグドア部分
が内側から押されて破断予定部で破断する。According to the first aspect of the present invention, the vehicle interior side member is made of a hard resin for defining the outer shape of the vehicle interior side member main body, and the rear surface of the airbag interior door main body is a rear surface of the airbag door. It is made of a reinforcing resin member provided in a portion corresponding to the portion, and the airbag door portion is pushed from the inside by the expansion of the airbag and is fractured at the expected fracture portion.
【００１２】前記破断予定部では、車室側部材本体の硬
質樹脂より柔軟な補強樹脂部材が車室側部材本体を分断
するように車室側部材本体表面側へ屈曲して車室側部材
本体表面に露出しているため、車室側部材本体の分断部
を埋める補強樹脂部材が、エアバッグの膨張により破断
する。したがって、車室側部材本体の硬質樹脂より柔軟
な補強樹脂部材が破断することになるため、その破断が
速やかになされることとなる。また、その破断のし易さ
から前記破断予定部における補強樹脂部材の厚みの設定
は、硬質樹脂の場合より厚くでき、その設定できる厚み
範囲が広くなって成形も容易となる。In the portion to be broken, the reinforcing resin member, which is softer than the hard resin of the passenger compartment member body, is bent toward the passenger compartment member body surface side so as to divide the passenger compartment member body, and the passenger compartment member body is bent. Since it is exposed on the surface, the reinforcing resin member that fills the divided portion of the passenger compartment-side member body breaks due to the expansion of the airbag. Therefore, the reinforcing resin member, which is softer than the hard resin of the passenger compartment body, breaks, so that the breakage occurs quickly. Further, because of the easiness of breaking, the thickness of the reinforcing resin member in the portion to be broken can be set thicker than in the case of the hard resin, the settable thickness range is widened, and the molding is easy.
【００１３】さらに、前記のように破断予定部では補強
樹脂部材によって車室側部材本体に分断部が形成され、
その分断部の内周面（分断面）が、車室側部材本体の表
面側へ屈曲した補強樹脂部材で覆われた状態となってい
る。したがって、前記補強樹脂部材の破断により開いた
エアバッグドアの破断部端面は、前記車室側部材本体の
分断部内周面を覆う補強樹脂部材で構成され、硬質樹脂
より柔軟な樹脂（補強樹脂部材）で隠蔽された状態とな
る。Further, as described above, at the portion to be broken, the dividing portion is formed in the main body of the passenger compartment by the reinforcing resin member,
The inner peripheral surface (divided cross section) of the divided portion is in a state of being covered with a reinforcing resin member that is bent toward the front surface side of the vehicle body member body. Therefore, the fractured end face of the airbag door opened due to the fracture of the reinforcing resin member is formed of a reinforcing resin member that covers the inner peripheral surface of the dividing portion of the passenger compartment body, and is more flexible than hard resin (reinforcing resin member). ) Will be hidden.
【００１４】請求項２の発明は、請求項１において、補
強樹脂部材が破断予定部の両端末間で車室側部材本体の
表面側へ屈曲してヒンジ用屈曲部を形成し、該部で車室
側部材本体の厚みが薄くなっていることを特徴とする。According to a second aspect of the present invention, in the first aspect, the reinforcing resin member is bent toward the front surface side of the passenger compartment side member body between both ends of the portion to be broken to form a bent portion for the hinge, and at this portion. It is characterized in that the thickness of the vehicle body member main body is thin.
【００１５】この請求項２の発明にあっては、硬い車室
側部材本体がヒンジ部で薄くされて剛性が低くなってい
るため、エアバッグ膨張時、破断予定部の破断に続き、
エアバッグドアがヒンジ部で速やかに屈曲して車室内側
へ開き、エアバッグのスムーズな展開を実現する。特
に、請求項１の発明において車室側部材本体の裏面に補
強樹脂部材が一体に設けられるため、ヒンジ部における
厚みが増して剛性が高まるおそれがあるが、この請求項
２の発明によれば、ヒンジ部の剛性を低下させ、エアバ
ッグドアがより速やかに開くことができるようになる。
その結果、エアバッグドアが未だ車室内側に十分屈曲す
る前に、破断予定部（破断後の破断予定部）の隙間から
エアバッグが車室内にはみ出して、スムーズなエアバッ
グの展開が妨げられるのをより確実に防ぐことができ
る。さらに、エアバッグドアの表面側にはヒンジ部の剛
性を下げるための凹部を設ける必要がないので、車室側
部材の外観が良好になる。According to the second aspect of the present invention, since the rigid vehicle compartment side member main body is thinned at the hinge portion and has low rigidity, when the airbag is inflated, the portion to be fractured is broken,
The airbag door quickly bends at the hinge and opens to the inside of the vehicle, allowing the airbag to deploy smoothly. In particular, in the invention of claim 1, since the reinforcing resin member is integrally provided on the back surface of the body member on the passenger compartment side, the thickness of the hinge portion may increase and the rigidity may increase. However, according to the invention of claim 2, The rigidity of the hinge portion is reduced, and the airbag door can be opened more quickly.
As a result, before the airbag door is sufficiently bent toward the vehicle interior side, the airbag protrudes into the vehicle interior from the gap between the planned breakage part (the planned breakage part after breakage), which hinders the smooth deployment of the airbag. Can be prevented more reliably. Furthermore, since it is not necessary to provide a recess for reducing the rigidity of the hinge portion on the front surface side of the airbag door, the appearance of the vehicle interior side member becomes good.
【００１６】一方、請求項３の発明は、樹脂製車室側部
材に略Ｈ字状またはＵ字状等に破断予定部が形成され、
エアバッグ膨張時に前記破断予定部から破断して開くエ
アバックドアを一体に有する車室側部材において、硬質
樹脂からなる基材に発泡体および表皮が積層された車室
側部材本体と、前記基材の硬質樹脂よりも柔軟な樹脂よ
りなって前記エアバッグドアの裏側に略相当する基材の
裏面に一体に設けられ、前記破断予定部で基材を分断す
るように基材表面側へ屈曲し、該屈曲部が薄肉となって
基材表面に露出している補強樹脂部材とよりなることを
特徴とするエアバッグドアを一体に有する車室側部材の
構造に係る。On the other hand, according to the third aspect of the present invention, the portion to be broken is formed in the resin-made passenger compartment member in a substantially H-shape or U-shape,
In a vehicle interior side member integrally having an airbag door that is broken and opened from the planned fracture portion when an airbag is inflated, a vehicle interior side member main body in which a foam and a skin are laminated on a base material made of hard resin, and the base. Made of a resin that is softer than the hard resin of the material and is integrally provided on the back surface of the base material that substantially corresponds to the back side of the airbag door, and is bent toward the front surface side of the base material so as to divide the base material at the portion to be broken. The structure of the vehicle interior side member integrally having the airbag door is characterized in that the bent portion is thin and is made of a reinforcing resin member exposed on the surface of the base material.
【００１７】この請求項３に記載された発明にあって
は、車室側部材が、硬質樹脂製基材に発泡体および表皮
が積層された車室側部材本体と、前記基材裏面のエアバ
ッグドア裏面部分に相当する部分に設けられた補強樹脂
部材とよりなる。この請求項３の発明では、基材が、請
求項１に記載された車室側部材本体と同様の構成からな
る。そして、エアバッグの膨張によって、基材の破断予
定部で補強樹脂部材が速やかに破断するとともに、該基
材の破断予定部と対応する部分の発泡体および表皮も破
断して、エアバッグドアが開く。エアバッグドアの破断
部端面は、請求項１における車室側部材本体と同様の理
由によって、基材の硬質樹脂より柔軟な補強樹脂部材で
隠蔽された状態となる。According to the third aspect of the invention, the vehicle interior side member is a vehicle interior side member body in which a foam and a skin are laminated on a hard resin base material, and air on the back surface of the base material. The reinforcing resin member is provided in a portion corresponding to the back surface of the bag door. In the invention of claim 3, the base material has the same configuration as that of the vehicle interior side member main body described in claim 1. Then, due to the expansion of the airbag, the reinforcing resin member is rapidly broken at the planned breakage portion of the base material, and the foam and the skin of the portion corresponding to the planned breakage portion of the base material are also broken, and the airbag door is open. Due to the same reason as that of the vehicle-body-side member body in the first aspect, the fractured end face of the airbag door is hidden by the reinforcing resin member which is softer than the hard resin of the base material.
【００１８】請求項４の発明は、請求項３における補強
樹脂部材が破断予定部で表皮の裏面に接触していること
を特徴とする。この請求項４の発明にあっては、破断予
定部の表皮と補強樹脂部材間に発泡体が介在しないた
め、車室側部材が破断予定部で破断する際に発泡体が飛
散するのを防止できる。The invention according to claim 4 is characterized in that the reinforcing resin member according to claim 3 is in contact with the back surface of the skin at the portion to be broken. In the invention of claim 4, since the foam is not interposed between the skin of the portion to be broken and the reinforcing resin member, it is possible to prevent the foam from scattering when the member on the passenger compartment side is broken at the portion to be broken. it can.
【００１９】また、請求項５の発明は、請求項３または
４における補強樹脂部材が破断予定部の両端末間で基材
表面側へ屈曲してヒンジ用屈曲部を形成し、該部で基材
の厚みが薄くなっていることを特徴とする。この請求項
５の発明にあっては、硬い基材がヒンジ部で薄くされて
剛性が低くなっているため、エアバッグ膨張時、破断予
定部の破断に続き、エアバッグドアがヒンジ部で速やか
に屈曲して車室内側へ開き、エアバッグのスムーズな展
開を実現する。The invention of claim 5 is characterized in that the reinforcing resin member according to claim 3 or 4 is bent toward the base material surface side between both ends of the portion to be broken to form a bent portion for hinge, and the base portion is formed at this portion. The feature is that the material is thin. According to the invention of claim 5, since the rigid base material is thinned at the hinge portion so that the rigidity is low, the airbag door is swiftly hinged at the hinge portion following the rupture of the portion to be ruptured when the airbag is inflated. It bends to the side and opens to the inside of the passenger compartment, achieving a smooth airbag deployment.
【００２０】[0020]
【発明の実施の形態】以下添付の図面に従ってこの発明
を詳細に説明する。まず請求項１の発明の実施例につい
て説明する。図１はその実施例の車室側部材の斜視図、
図２はそのエアバッグドア付近の斜視図、図３は図１の
ａ−ａ断面図、図４はエアバッグ膨張時、図５はエアバ
ッグがしぼんだ際を示す断面図である。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. First, an embodiment of the invention of claim 1 will be described. FIG. 1 is a perspective view of a vehicle compartment side member of the embodiment,
2 is a perspective view of the vicinity of the airbag door, FIG. 3 is a sectional view taken along the line aa of FIG. 1, FIG. 4 is a sectional view showing the airbag inflated, and FIG. 5 is a sectional view showing the airbag deflated.
【００２１】図１ないし図３に示す車室側部材１０は、
自動車のインストルメントパネルを構成し、助手席側に
エアバッグドア１１を一体に有する。この車室側部材１
０は、車室側部材本体２１と、車室側部材本体２１の裏
側に一体に設けられた補強樹脂部材３１とよりなって、
エアバッグＡ膨張時に破断してエアバッグドア１１の開
きを可能にするための破断予定部１５が、エアバッグド
ア１１を区画するように、平面視略Ｈ字形に形成されて
いる。なお、破断予定部１５の平面形状は、従来技術の
項の図１９において示した破断予定部１６２のように略
Ｕ字形とされることもある。符号１２はエアバッグドア
が開く際にヒンジ部となる部分で、破断予定部１５の両
端末１６, １６間、１７，１７間に位置する。The passenger compartment member 10 shown in FIGS. 1 to 3 is
It constitutes an instrument panel of a vehicle and has an airbag door 11 integrally on the passenger side. This passenger compartment member 1
0 consists of the passenger compartment side member main body 21 and the reinforcing resin member 31 integrally provided on the back side of the passenger compartment side member main body 21,
A to-be-ruptured portion 15 that breaks when the airbag A inflates and allows the airbag door 11 to open is formed in a substantially H shape in a plan view so as to partition the airbag door 11. The plan-view shape of the breakable portion 15 may be substantially U-shaped like the breakable portion 162 shown in FIG. Reference numeral 12 is a portion that serves as a hinge portion when the airbag door is opened, and is located between the two terminals 16, 16 and between the terminals 17, 17 of the breakable portion 15.
【００２２】前記車室側部材本体２１は、車室側部材１
０の外形を定めるとともにその表面を構成するもので、
射出成形等により所要形状に形成された硬質樹脂成形品
からなる。車室側部材本体２１を構成する硬質樹脂は、
車室側部材に求められる剛性や強度を有するもので、ポ
リプロピレン樹脂（ＰＰ）等の汎用硬質樹脂が用いられ
る。特には、剛性および形状保持性等の点から、曲げ弾
性率（ＪＩＳ−Ｋ７２０３準拠）２００００ｋｇｆ／ｃ
ｍ2 以上、熱変形温度（ＪＩＳ−Ｋ７２０７準拠）１２
０℃以上（４．６ｋｇｆ荷重）のものが好ましい。この
実施例では、曲げ弾性率２７０００ｋｇｆ／ｃｍ2 、熱
変形温度１３２℃、厚み２．５ｍｍのＰＰよりなる。The passenger compartment-side member main body 21 is the passenger compartment-side member 1
It defines the outer shape of 0 and constitutes its surface,
It is a hard resin molded product formed into a required shape by injection molding or the like. The hard resin that constitutes the passenger compartment member body 21 is
It has rigidity and strength required for the passenger compartment member, and a general-purpose hard resin such as polypropylene resin (PP) is used. In particular, in terms of rigidity and shape retention, flexural modulus (JIS-K7203 compliant) 20000 kgf / c
m 2 or more, heat distortion temperature (JIS-K7207 compliant) 12
It is preferably 0 ° C. or higher (4.6 kgf load). In this embodiment, the bending elastic modulus is 27,000 kgf / cm 2 , the heat distortion temperature is 132 ° C., and the thickness is 2.5 mm.
【００２３】また、前記車室側部材本体２１の破断予定
部１５の部分には、破断予定部１５に沿って分断部２２
が形成され、その分断部２２に車室側部材本体２１裏面
の補強樹脂部材３１が食い込んで車室側部材本体２１表
面で露出している。この分断部２２の幅（分断間隔）は
適宜とされるが、一般的に２ｍｍ以下程度とされる。な
お、この分断部２２は、前記車室側部材本体２１と補強
樹脂部材３１とを同色とすることによって、また一体成
形することによりほとんど外面からは判別できないよう
するのが好ましい。In addition, at the portion to be fractured 15 of the passenger compartment side member body 21, a dividing portion 22 is provided along the portion to be fractured 15.
The reinforcing resin member 31 on the rear surface of the passenger compartment side member main body 21 bites into the divided portion 22 and is exposed on the surface of the passenger compartment side member main body 21. The width (division interval) of the dividing portion 22 is appropriately set, but is generally about 2 mm or less. In addition, it is preferable that the dividing portion 22 be made almost indistinguishable from the outer surface by making the casing main body 21 and the reinforcing resin member 31 have the same color and integrally molding.
【００２４】補強樹脂部材３１は、前記破断予定部１５
で車室側部材１０を破断し易くするとともに、エアバッ
グドア１１の破断部端面を隠蔽するためのもので、前記
車室側部材本体２１を構成する硬質樹脂よりも柔軟な樹
脂で形成され、車室側部材本体２１のエアバッグドア１
１裏面側に一体に設けられている。The reinforcing resin member 31 has a portion 15 to be broken.
Is for facilitating breakage of the passenger compartment member 10 and for concealing the end face of the airbag door 11 at the breakage portion, and is made of a resin softer than the hard resin forming the passenger compartment member body 21. Airbag door 1 of the main body 21 on the passenger compartment side
1 is integrally provided on the back side.
【００２５】この実施例の補強樹脂部材３１は、厚み３
ｍｍ、縦１５０ｍｍ、横３２０ｍｍの長方形板状体に、
車室側部材本体２１側へ突出するように略逆Ｖ字形に屈
曲した屈曲部３２が、平面視略Ｈ字形となるように形成
されている。前記屈曲部３２の頂点の厚みは、該頂点で
破断し易いように、他部よりも薄くされる。一般的に
０．３〜０．５ｍｍ程度とされる。The reinforcing resin member 31 of this embodiment has a thickness of 3
mm, length 150 mm, width 320 mm rectangular plate,
A bent portion 32 that is bent in a substantially inverted V shape so as to project toward the passenger compartment side member main body 21 is formed to have a substantially H shape in plan view. The thickness of the apex of the bent portion 32 is made thinner than other portions so that the bent portion 32 is easily broken at the apex. Generally, it is about 0.3 to 0.5 mm.
【００２６】また、前記のように車室側部材本体２１の
表面側へ屈曲した屈曲部３２は、平時に車室側部材１０
の表面から破断予定部１５付近を押した際に、その押圧
方向と略平行方向となって大なる剛性を発揮するため、
平時における強度増大効果が高く、破断予定部１５の亀
裂を防止する。The bent portion 32, which is bent toward the front surface side of the passenger compartment side member body 21 as described above, has the passenger compartment member 10 in a flat state.
When the area near the planned breakage portion 15 is pushed from the surface of the, it becomes a direction substantially parallel to the pushing direction and exerts great rigidity.
The effect of increasing the strength in the normal state is high, and cracks in the expected breakage portion 15 are prevented.
【００２７】さらにこの実施例の補強樹脂部材３１で
は、補強樹脂部材３１裏面の周縁近くに、枠部３３が立
設されている。この枠部３３は、エアバッグ収容ケース
Ｃの開口端部外周に嵌められ、エアバッグケースＣとこ
の車室側部材１０との間の固定を行なうのに用いられ
る。なお、その固定は図示しないボルト等の固定手段を
用いてなされる。Further, in the reinforcing resin member 31 of this embodiment, a frame portion 33 is provided upright near the periphery of the back surface of the reinforcing resin member 31. The frame portion 33 is fitted on the outer periphery of the opening end portion of the airbag accommodating case C and is used to fix the airbag case C and the passenger compartment member 10. The fixing is performed using a fixing means such as a bolt (not shown).
【００２８】前記補強樹脂部材３１は、前記車室側部材
本体２１を構成する硬質樹脂より柔軟な樹脂からなり、
曲げ弾性率（ＪＩＳ−Ｋ７２０３準拠）１０００ｋｇｆ
／ｃｍ2 〜５０００ｋｇｆ／ｃｍ2 の樹脂が、破断し易
く、またエアバッグドア１１部分の補強の点で好まし
い。前記車室側部材本体２１が曲げ弾性率２７０００ｋ
ｇｆ／ｃｍ2 のＰＰからなるこの実施例においては、補
強樹脂部材３１は、曲げ弾性率３０００ｋｇｆ／ｃｍ2
のＴＰＯ（ポリオレフィン系熱可塑性エラストマー）樹
脂からなる。The reinforcing resin member 31 is made of a resin that is softer than the hard resin forming the passenger compartment side member body 21,
Flexural modulus (JIS-K7203 compliant) 1000kgf
/ Cm 2 to 5000 kgf / cm 2 of the resin is preferable in that it easily breaks and reinforces the airbag door 11 portion. The vehicle body member 21 has a bending elastic modulus of 27,000 k.
In this example made of PP with gf / cm 2 , the reinforcing resin member 31 has a flexural modulus of 3000 kgf / cm 2.
Of TPO (polyolefin thermoplastic elastomer) resin.
【００２９】なお、前記車室側部材１０の成形は、射出
成形等により、容易に行なうことができる。すなわち、
まず射出成形等によって補強樹脂部材３１を形成する。
次いで、その補強樹脂部材３１を成形型にインサートと
して配置し、硬質樹脂を射出して補強樹脂部材３１と一
体になった車室側部材本体２１を形成することにより、
所望の車室側部材１０を得ることができる。The vehicle-cabin-side member 10 can be easily molded by injection molding or the like. That is,
First, the reinforcing resin member 31 is formed by injection molding or the like.
Next, the reinforcing resin member 31 is arranged as an insert in a molding die, and a hard resin is injected to form the vehicle-cabin-side member body 21 integrated with the reinforcing resin member 31,
The desired passenger compartment member 10 can be obtained.
【００３０】前記構造の車室側部材１０は、平時におい
ては、前記したように、破断予定部１５における補強樹
脂部材３１の屈曲部３２が奏する強度増大作用等によっ
て、表面の押圧に対しても破断予定部１５に亀裂の発生
を防ぐことができる。In a normal state, the vehicle-cabin-side member 10 having the above-described structure is pressed against the surface due to the strength increasing action of the bent portion 32 of the reinforcing resin member 31 in the breakable portion 15 as described above. It is possible to prevent the occurrence of cracks in the breakable portion 15.
【００３１】そして衝突等によって自動車に衝撃が加わ
った時には、インフレーターＩの作動によってエアバッ
グＡが膨張し、それにより補強樹脂部材３１の裏面が押
され、薄肉の破断予定部１５が破断し、図４に示すよう
にエアバッグドア１１がヒンジ１２で屈曲して開き、エ
アバッグＡが車内で展開する。符合１５ａは破断部であ
る。前記エアバッグ膨張時、破断予定部１５では、硬質
樹脂からなる車室側部材本体２１が、それより柔軟な樹
脂からなる補強樹脂部材３１によりあらかじめ分断され
ているため、エアバッグ膨張による押圧力が破断予定部
１５の補強樹脂部材３１に集中し、効率よく破断する。
しかもその補強樹脂部材３１は、車室側部材本体２１の
硬質樹脂よりも柔軟な樹脂で構成されているため、破断
が一層スムーズに、かつ迅速になされる。When a shock is applied to the automobile due to a collision or the like, the airbag A is inflated by the operation of the inflator I, which pushes the back surface of the reinforcing resin member 31 and breaks the thin portion 15 to be broken. As shown in FIG. 4, the airbag door 11 is bent and opened by the hinge 12, and the airbag A is deployed in the vehicle. Reference numeral 15a is a broken portion. When the airbag is inflated, the vehicle body side member main body 21 made of a hard resin is preliminarily divided by the reinforcing resin member 31 made of a softer resin at the portion 15 to be broken. Concentrate on the reinforcing resin member 31 in the breakable portion 15 and break efficiently.
Moreover, since the reinforcing resin member 31 is made of a resin that is softer than the hard resin of the passenger compartment-side member main body 21, the breakage can be made more smoothly and quickly.
【００３２】一旦膨張したエアバッグＡは、その後所定
時間経過すると図５に示すようにしぼむ。その際、車室
内に開いた状態のままとなるエアバッグドア１１は、破
断部１５ａ部分において、車室側部材本体２１の前記分
断部内周面（分断面）２２ａが前記補強樹脂部材３１の
屈曲部３２で隠蔽されており、硬い硬質樹脂が露出して
なく、車室側部材として好ましい。The airbag A, which has once inflated, collapses as shown in FIG. 5 after a predetermined time has elapsed. At that time, in the airbag door 11 that is left open in the vehicle compartment, the inner peripheral surface (section surface) 22a of the divided portion of the vehicle body member 21 is bent at the breakage portion 15a of the reinforcing resin member 31. Since it is hidden by the portion 32 and the hard resin is not exposed, it is preferable as a vehicle interior member.
【００３３】次に請求項２の発明の実施例について説明
する。図６はその実施例におけるエアバッグドア付近を
示す斜視図、図７は図６のｂ−ｂ断面図、図８はそのヒ
ンジ部の拡大断面図、図９は図６のｃ−ｃ断面図、図１
０は請求項２に記載された発明の他の実施例におけるエ
アバッグドア付近を示す斜視図、図１１は図１０のｄ−
ｄ断面図である。Next, an embodiment of the invention of claim 2 will be described. 6 is a perspective view showing the vicinity of the airbag door in the embodiment, FIG. 7 is a sectional view taken along line bb of FIG. 6, FIG. 8 is an enlarged sectional view of a hinge portion thereof, and FIG. 9 is a sectional view taken along line cc of FIG. , Figure 1
0 is a perspective view showing the vicinity of the airbag door in another embodiment of the invention described in claim 2, and FIG. 11 is d- of FIG.
It is d sectional drawing.
【００３４】請求項２に記載された発明においては、図
６ないし図９に示すように、車室側部材１０Ａのエアバ
ッグドア１１Ａ裏側に設けられた補強樹脂部材３１Ａ
が、車室側部材本体２１Ａの破断予定部１５Ａの両端末
１６Ａ，１６Ａ間、１７Ａ，１７Ａ間、すなわちヒンジ
部１２Ａ，１３Ａで、車室側部材本体２１Ａの表面側へ
屈曲して、ヒンジ用屈曲部３４Ａ, ３５Ａを形成し、該
ヒンジ部１２Ａ, １３Ａで車室側部材本体２１Ａの厚み
が薄くなっている。その他の点については、請求項１に
記載された発明と同じである。符号３２Ａは破断予定部
における補強樹脂部材３１Ａの屈曲部を示す。According to the second aspect of the present invention, as shown in FIGS. 6 to 9, the reinforcing resin member 31A provided on the back side of the airbag door 11A of the passenger compartment member 10A.
Is bent between the two terminals 16A, 16A, 17A, 17A of the planned breakage portion 15A of the passenger compartment member body 21A, that is, the hinge portions 12A, 13A, and is bent toward the front surface side of the passenger compartment member body 21A for hinges. Bent portions 34A and 35A are formed, and the thickness of the passenger compartment side member main body 21A is thinned by the hinge portions 12A and 13A. The other points are the same as the invention described in claim 1. Reference numeral 32A indicates a bent portion of the reinforcing resin member 31A at the planned breakage portion.
【００３５】この請求項２に記載された発明にあって
は、ヒンジ部１２Ａ, １３Ａにおいて、硬い車室側部材
本体２１Ａが薄くされているため、エアバッグ膨張によ
るエアバッグドア１１Ａの開き時にヒンジ部１２Ａ１３
Ａが屈曲しやすく、エアバッグドア１１Ａが速やかに開
く。しかも、ヒンジ部１２Ａ，１３Ａの表面（外面）に
はヒンジ部のための凹部が存在しないため、車室側部材
１０Ａの外観が良好である。According to the second aspect of the present invention, in the hinge portions 12A and 13A, the rigid body member 21A on the vehicle interior side is thinned, so that the hinge is opened when the airbag door 11A is opened due to the inflation of the airbag. Part 12A13
A easily bends, and the airbag door 11A opens quickly. Moreover, since the recesses for the hinge portions do not exist on the surfaces (outer surfaces) of the hinge portions 12A and 13A, the appearance of the vehicle interior side member 10A is good.
【００３６】図１０は請求項２に記載された発明の他の
実施例におけるエアバッグドア付近を示す斜視図、図１
１は図１０のｄ−ｄ断面図である。この実施例の車室側
部材１０Ｂは、破断予定部１５Ｂが略Ｕ字形からなり、
その形状に応じて補強樹脂部材３１Ｂが形成されている
点を除き、前記図６ないし図９の実施例と同様の構造か
らなる。符号１１Ｂはエアバッグドア、１２Ｂはヒンジ
部、１６Ｂは破断予定部の両端末間、２１Ｂは車室側部
材本体、３２Ｂは破断予定部における補強樹脂部材の屈
曲部、３４Ｂはヒンジ用屈曲部である。FIG. 10 is a perspective view showing the vicinity of an airbag door in another embodiment of the invention described in claim 2, FIG.
1 is a sectional view taken along line d-d of FIG. In the vehicle-cabin-side member 10B of this embodiment, the to-be-ruptured portion 15B has a substantially U shape,
The structure is the same as that of the embodiment of FIGS. 6 to 9 except that the reinforcing resin member 31B is formed according to the shape. Reference numeral 11B is an airbag door, 12B is a hinge portion, 16B is a portion between both terminals of a portion to be broken, 21B is a vehicle body member main body, 32B is a bent portion of the reinforcing resin member in the portion to be broken, and 34B is a bent portion for hinge. is there.
【００３７】次に請求項３の発明の実施例について説明
する。図１２は請求項３に記載された発明の一実施例に
係る車室側部材の断面図、図１３は同実施例のエアバッ
グ膨張時を示す断面図である。図示の車室側部材４０
は、インストルメントパネルとして用いられるもので、
エアバッグドア４１を一体に有し、車室側部材本体４５
と補強樹脂部材５７とよりなる。車室側部材本体４５
は、基材４６、発泡体５１および表皮５５からなって、
車室側部材４０の外形を構成する。符合５２は発泡体の
破断予定部を示す仮想の線であり、平面視略Ｈ字形を形
成する。この発泡体の破断予定部５２、基材の破断予定
部４７および表皮の破断予定部５６により車室側部材の
破断予定部が構成され、エアバッグドア４１が区画され
る。Next, an embodiment of the invention of claim 3 will be described. FIG. 12 is a sectional view of a vehicle-cabin-side member according to an embodiment of the invention described in claim 3, and FIG. 13 is a sectional view showing the same embodiment when an airbag is inflated. Vehicle compartment side member 40 shown
Is used as an instrument panel,
An airbag door 41 is integrally formed, and a passenger compartment side member main body 45
And a reinforcing resin member 57. Vehicle side member body 45
Consists of a base material 46, a foam body 51 and a skin 55,
The outer shape of the passenger compartment member 40 is configured. Reference numeral 52 is an imaginary line indicating a planned breakage portion of the foam, and forms a substantially H shape in plan view. The planned breakage portion 52 of the foam, the planned breakage portion 47 of the base material, and the planned breakage portion 56 of the skin constitute a planned breakage portion of the vehicle interior member, and the airbag door 41 is partitioned.
【００３８】基材４６は、この車室側部材４０の形状を
保持したり、平時における所定押圧力に耐えられる剛性
を付与するためのもので、射出成形等により車室側部材
４０形状に応じて形成された硬質樹脂製品からなる。こ
の基材４６を構成する硬質樹脂の種類や、厚みや物性等
は、前記請求項１の実施例で示した車室側部材本体２１
の硬質樹脂と同様のものが好ましい。また、この基材４
６には他の部材の破断予定部５２，５６と対応する位置
に基材用破断予定部４７が形成されている。この破断予
定部４７では、エアバッグドア４１の裏側となる基材４
６の裏面に設けられた補強樹脂部材５７が食い込んで基
材４６を分断させた状態となっている。なお、この実施
例の基材４６は、曲げ弾性率２７０００ｋｇｆ／ｃ
ｍ2 、熱変形温度１３２℃、厚み２．５ｍｍのＰＰより
なる。The base material 46 is for holding the shape of the passenger compartment side member 40 and for imparting rigidity to withstand a predetermined pressing force in a normal state. It is made of a hard resin product formed by. The type, thickness, physical properties, etc. of the hard resin forming the base material 46 are the same as those of the vehicle-body-side member body 21 shown in the embodiment of claim 1.
The same as the hard resin of is preferable. In addition, this base material 4
6, a base material breakable portion 47 is formed at a position corresponding to the breakable portions 52 and 56 of the other members. At the breakable portion 47, the base material 4 which is the back side of the airbag door 41
The reinforcing resin member 57 provided on the back surface of 6 cuts into the base material 46 to cut it. The base material 46 of this example has a flexural modulus of 27,000 kgf / c.
It is made of PP with m 2 , a heat distortion temperature of 132 ° C., and a thickness of 2.5 mm.
【００３９】発泡体５１は、車室側部材４０表面の緩衝
性を高めるためのものでポリウレタン発泡体等の弾性発
泡体が好適である。また表皮５５は、車室側部材４０の
表面を構成するもので、プラスチックレザー等からな
り、スラッシュ成形や真空成形等により所定形状とされ
たものが用いられる。この表皮５５には、他の部材の破
断予定部４７，５２と対応する位置にＶ字形の溝等から
なる薄肉の表皮用破断予定部５６が形成されている。The foam 51 is for enhancing the cushioning property of the surface of the vehicle interior side member 40, and an elastic foam such as polyurethane foam is suitable. The skin 55 constitutes the surface of the vehicle interior member 40, and is made of plastic leather or the like, and has a predetermined shape by slush molding or vacuum molding. The skin 55 has a thin skin breakable portion 56 including a V-shaped groove at a position corresponding to the breakable portions 47 and 52 of the other members.
【００４０】一方、補強樹脂部材５７は、エアバッグＡ
膨張時に前記破断予定部５２で速やかに破断できるよう
にするとともに、平時にはその破断予定部５２を補強す
るためのもので、エアバックドア４１，４１の裏側とな
る基材４６の裏面に一体に設けられている。この補強樹
脂部材５７は、前記基材用破断予定部４７において基材
４６の車室側部材４０表面側へ略逆Ｖ時形に屈曲し、基
材４６内に食い込んで基材４６を分断し、基材４６表面
に露出する屈曲部５８の頂点部分が薄肉となって基材用
破断予定部４７を埋める。On the other hand, the reinforcing resin member 57 is the airbag A.
In order to make it possible to quickly rupture the rupture scheduled portion 52 when inflated and to reinforce the rupture expected portion 52 in the normal state, it is integrally formed on the back surface of the base material 46 which is the back side of the airbag doors 41, 41. It is provided. The reinforcing resin member 57 is bent in a substantially inverted V-shape toward the front surface side of the vehicle-side member 40 of the base material 46 at the planned base material breakage portion 47, and cuts into the base material 46 to divide the base material 46. The apex portion of the bent portion 58 exposed on the surface of the base material 46 becomes thin to fill the breakable portion 47 for the base material.
【００４１】前記補強樹脂部材５７は、基材４６より柔
軟な樹脂からなり、その厚みや、樹脂の種類や物性は、
請求項１の実施例において示した補強樹脂部材３１の場
合と同じである。この実施例の補強樹脂部材５７は、曲
げ弾性率３０００ｋｇｆ／ｃｍ2 のＴＰＯ（ポリオレフ
ィン系熱可塑性エラストマー）樹脂からなる。また、こ
の実施例の補強樹脂部材５７は略長方形からなって、そ
の裏面にエアバッグ収容ケースＣへの取付け用枠部５９
が、補強樹脂部材５７の周縁内側に形成されている。The reinforcing resin member 57 is made of a resin that is softer than the base material 46, and the thickness, type and physical properties of the resin are
This is the same as the case of the reinforcing resin member 31 shown in the embodiment of claim 1. The reinforcing resin member 57 of this embodiment is made of TPO (polyolefin thermoplastic elastomer) resin having a flexural modulus of 3000 kgf / cm 2 . In addition, the reinforcing resin member 57 of this embodiment has a substantially rectangular shape, and a frame portion 59 for attachment to the airbag accommodating case C is formed on the back surface thereof.
Are formed inside the peripheral edge of the reinforcing resin member 57.
【００４２】なお、前記車室側部材４０の成形は、まず
前記補強樹脂部材５７を射出成形等により形成し、その
補強樹脂部材５７を成形型内にインサートとして配置
し、基材４６を補強樹脂部材５７と一体に形成する。次
いで、前記補強樹脂部材５７が一体となった基材４６
と、表皮５５とを発泡成形型にセットし、基材４６と表
皮５５間に発泡原料を注入して、前記基材４６および表
皮５５と一体となった発泡体５１を形成する。その後成
形品を発泡成形型から取り出せば、所望の車室側部材４
０が得られる。In the molding of the passenger compartment side member 40, first, the reinforcing resin member 57 is formed by injection molding or the like, the reinforcing resin member 57 is arranged as an insert in the molding die, and the base material 46 is reinforced resin. It is formed integrally with the member 57. Next, the base material 46 in which the reinforcing resin member 57 is integrated
Then, the outer skin 55 is set in a foaming mold, and a foaming raw material is injected between the base material 46 and the outer skin 55 to form a foam 51 integrated with the base material 46 and the outer skin 55. After that, if the molded product is taken out from the foam molding die, the desired vehicle interior side member 4
0 is obtained.
【００４３】前記構造を有する車室側部材４０は、エア
バッグＡ膨張時、基材４６が押されて、基材用破断予定
部４７で薄肉の補強樹脂部材５７が破断する。その際、
基材用破断予定部４７では、硬質樹脂からなる基材４６
が分断されているため、その分断部を埋める補強樹脂部
材５７に応力が集中し、しかもその補強樹脂部材５７が
基材よりも柔軟なため、きわめて速やかに破断する。ま
た、それとほとんど同時に、発泡体５１がその破断予定
部５２部分で破断し、さらには表皮５５が表皮用破断予
定部５６で破断する。そして図１３に示すようにエアバ
ッグドア４１，４１が押し開かれ、エアバッグＡが車室
内に展開し、時間経過後エアバッグＡがしぼむ。このよ
うに破断して開いたエアバッグドア４１の破断部４１
ａ，４１ａの端面は、硬質樹脂よりなる基材４６が、そ
の硬質樹脂より柔軟な補強樹脂部材５７の前記屈曲部５
８で隠蔽されており、車室側部材として好ましいものと
なっている。In the passenger compartment member 40 having the above structure, when the airbag A is inflated, the base material 46 is pushed and the thin reinforcing resin member 57 is broken at the base material breakable portion 47. that time,
In the planned breakage portion 47 for the base material, the base material 46 made of a hard resin is used.
Since the reinforcing resin member 57 is divided, stress concentrates on the reinforcing resin member 57 that fills the divided portion, and since the reinforcing resin member 57 is softer than the base material, it breaks extremely quickly. Almost at the same time, the foam body 51 breaks at the planned breakage portion 52, and the skin 55 breaks at the skin breakage planned portion 56. Then, as shown in FIG. 13, the airbag doors 41, 41 are pushed open, the airbag A is deployed in the vehicle compartment, and the airbag A is deflated after a lapse of time. The fractured portion 41 of the airbag door 41 thus fractured and opened
At the end faces of a and 41a, the base material 46 made of hard resin is softer than the hard resin.
It is concealed by 8 and is preferable as a vehicle interior member.
【００４４】なお、前記発泡体５１は表皮５５の裏打ち
材として表皮５５と一体に形成されたものであってもよ
い。図１４はそのような表皮を用いた車室側部材の破断
予定部を示す断面図である。この図に示す例において
は、表皮５５Ａが軟質塩化ビニル樹脂シートからなっ
て、その裏面にポリプロピレンフォームからなる発泡体
５１Ａが一体に裏打ちされている。なお、表皮５５Ａの
破断予定部５６Ａの表面は凹溝とされて装飾向上が図ら
れている。また、発泡体５１Ａの破断予定部５２Ａの裏
面には、表皮の破断予定部５６Ａの裏側内に至るＶ溝
（図示せず）が適宜形成される。符号４６Ａは基材、４
７Ａは基材の破断予定部、５７Ａは補強樹脂部材、５８
Ａは破断予定部における補強樹脂部材の屈曲部である。The foam body 51 may be formed integrally with the outer skin 55 as a lining material for the outer skin 55. FIG. 14 is a cross-sectional view showing a planned breakage portion of a vehicle interior side member using such a skin. In the example shown in this figure, the skin 55A is made of a soft vinyl chloride resin sheet, and the back surface thereof is integrally lined with a foam 51A made of polypropylene foam. It should be noted that the surface of the breakable portion 56A of the outer skin 55A is made into a groove to improve the decoration. Further, a V groove (not shown) reaching the inside of the back side of the scheduled breakage portion 56A of the skin is appropriately formed on the back surface of the scheduled breakage portion 52A of the foam 51A. Reference numeral 46A is a base material, 4
7A is a portion of the base material to be broken, 57A is a reinforcing resin member, 58
A is a bent portion of the reinforcing resin member in the portion to be broken.
【００４５】次に請求項４に記載された発明について説
明する。この請求項４に記載された発明の車室側部材
は、請求項３に記載された発明と同様、基材に発泡体お
よび表皮が積層されたものに関し、図１５はその一実施
例の破断予定部を示す断面図である。Next, the invention described in claim 4 will be described. The vehicle-cabin-side member of the invention described in claim 4 is similar to the invention described in claim 3 in that the foam and the skin are laminated on the base material, and FIG. It is sectional drawing which shows a planned part.
【００４６】この請求項４の発明にあっては、図１５に
示すように、基材４６Ｂの破断予定部４７Ｂおよび発泡
体５１Ｂの破断予定部５２Ｂの位置で、補強樹脂部材５
７Ｂの屈曲部５８Ｂが基材４６Ｂおよび発泡体５１Ｂを
分断して、表皮５５Ｂの破断予定部５６Ｂにおける表皮
裏面と接触しており、その他の構造は請求項３に記載さ
れた発明と同様である。この発明の実施例においては、
表皮５５Ｂの破断予定部５６Ｂと補強樹脂部材５７Ｂの
屈曲部５８Ｂ間に発泡体５１Ｂが介在しないため、エア
バッグの膨張による破断予定部の破断時に発泡体５１Ｂ
が飛散する恐れがない。なお、請求項４に記載された発
明においても、図１６に示す他の実施例のように、表皮
５５Ｃの破断予定部５６Ｃの表面に凹溝を設け、装飾性
を高めてもよい。符号４６Ｃは基材、４７Ｃは基材の破
断予定部、５１Ｃは発泡体、５２Ｃは発泡体の破断予定
部、５７Ｃは補強樹脂部材、５８Ｃは破断予定部におけ
る補強樹脂部材の屈曲部である。According to the fourth aspect of the present invention, as shown in FIG. 15, the reinforcing resin member 5 is provided at the position of the breakable portion 47B of the base material 46B and the breakable portion 52B of the foam 51B.
The bent portion 58B of 7B divides the base material 46B and the foamed body 51B and is in contact with the back surface of the skin in the portion to be broken 56B of the skin 55B, and the other structure is the same as that of the invention described in claim 3. . In an embodiment of the present invention,
Since the foam 51B is not interposed between the planned breakage portion 56B of the outer skin 55B and the bent portion 58B of the reinforcing resin member 57B, the foamed body 51B is broken when the planned breakage portion is broken due to the inflation of the airbag.
There is no fear of being scattered. Note that, also in the invention described in claim 4, as in the other embodiment shown in FIG. 16, a concave groove may be provided on the surface of the breakable portion 56C of the skin 55C to enhance the decorativeness. Reference numeral 46C is a base material, 47C is a breakable portion of the base material, 51C is a foamed body, 52C is a planned breakage portion of the foamed body, 57C is a reinforcing resin member, and 58C is a bent portion of the reinforcing resin member at the breakable portion.
【００４７】図１７は請求項５に記載された発明の一実
施例についてエアバッグドア付近を示す斜視図である。
この請求項５に記載された発明は、前記請求項３または
４に記載された発明と同様に、基材４６Ｄに発泡体５１
Ｄおよび表皮５５Ｄが積層されたものに関し、基材の破
断予定部４７Ｄの両端末４３Ｄ，４３Ｄ、４４Ｄ，４４
Ｄ間のヒンジ部４８Ｄ, ４８Ｄで、補強樹脂部材５７Ｄ
が基材４６Ｄの表面側へ屈曲してヒンジ用屈曲部４９Ｄ
を形成し、該部で基材４６Ｄの厚みが薄くなっているこ
とを特徴とする。従って、エアバッグの膨張によるエア
バッグドア４１Ｄ，４１Ｄの開き時に、ヒンジ部４８
Ｄ, ４８Ｄで容易に屈曲してエアバッグドア４１Ｄ, ４
１Ｄが速やかに開く。符号４７Ｄは破断予定部における
補強樹脂部材５７Ｄの屈曲部、５２Ｄは発泡体５１Ｄの
破断予定部、５６Ｄは表皮５５Ｄの破断予定部である。FIG. 17 is a perspective view showing the vicinity of the airbag door in an embodiment of the invention described in claim 5.
The invention described in claim 5 is similar to the invention described in claim 3 or 4, and the foam 51 is formed on the base material 46D.
D and the skin 55D are laminated, and both ends 43D, 43D, 44D, 44 of the breakable portion 47D of the base material
Reinforcement resin member 57D at the hinge portions 48D, 48D between D
Is bent to the front surface side of the base material 46D to bend the hinge 49D.
Is formed, and the thickness of the base material 46D is thinned at this portion. Therefore, when the airbag doors 41D, 41D are opened due to the inflation of the airbag, the hinge portion 48
Air bag doors 41D, 4 with easy bending with D, 48D
1D opens quickly. Reference numeral 47D is a bent portion of the reinforcing resin member 57D at the planned break portion, 52D is a planned break portion of the foam 51D, and 56D is a predicted break portion of the outer skin 55D.
【００４８】なお、図１７の例は、破断予定部において
補強樹脂部材の屈曲部４７Ｄと表皮５５Ｄの裏面間に発
泡体５１Ｄが介在する場合であるが、前記補強樹脂部材
の屈曲部４７Ｄが発泡体５１Ｄを介することなく表皮の
破断予定部５６Ｄの裏面に接触するようにされることも
ある。In the example of FIG. 17, the foam 51D is interposed between the bent portion 47D of the reinforcing resin member and the back surface of the outer skin 55D at the planned breakage portion, but the bent portion 47D of the reinforcing resin member is foamed. In some cases, the back surface of the planned breakage portion 56D of the epidermis may be brought into contact with the back surface of the skin without the body 51D.
【００４９】また、前記請求項３ないし５に記載された
発明においても、前記破断予定部は略Ｈ字形の他に適宜
略Ｕ字形とされる。Also, in the invention described in claims 3 to 5, the breakable portion is appropriately U-shaped in addition to the substantially H-shaped.
【００５０】[0050]
【発明の効果】以上図示し説明したように、請求項１に
記載された発明にあっては、破断予定部が車室側部材本
体よりも柔軟な補強樹脂部材により構成されるため、エ
アバッグ膨張時に速やかに、かつ確実に破断してエアバ
ッグドアを開く。さらに、前記破断予定部では補強樹脂
部材が車室側部材の表面側へ屈曲しているため、平時に
車室側部材表面が押圧された際に、その押圧方向に対す
る強度が高く、破断予定部で亀裂等を生じるのを防ぐ。
加えて、エアバッグドアの破断部端面は硬質樹脂材より
なる車室側部材本体が、それより柔軟な補強樹脂部材に
より隠蔽されることになるため、車室側部材として好ま
しいものである。As shown and described above, according to the invention described in claim 1, since the portion to be broken is composed of the reinforcing resin member which is softer than the passenger compartment side member main body, the airbag When inflated, it ruptures quickly and surely to open the airbag door. Furthermore, since the reinforcing resin member is bent toward the surface side of the passenger compartment side member at the portion to be broken, when the surface of the member on the passenger compartment side is pressed in a flat state, the strength in the pressing direction is high and the portion to be broken is To prevent cracks from occurring.
In addition, since the vehicle body side member main body made of a hard resin material is covered with the reinforcing resin member which is softer than the end face of the broken portion of the airbag door, it is preferable as the vehicle interior side member.
【００５１】また、請求項２に記載された発明にあって
は、請求項１の発明において、硬い車室側部材本体がヒ
ンジ部で薄くされて剛性が低くなっているため、請求項
１に記載された発明の効果に加え、次の効果を奏する。
すなわち、エアバッグ膨張時に破断予定部における破断
に続き、エアバッグドアがヒンジ部で速やかに屈曲して
車室内側へ開き、エアバッグのスムーズな展開を実現す
る。Further, in the invention described in claim 2, in the invention of claim 1, since the rigid vehicle compartment side member main body is thinned at the hinge portion to have low rigidity, In addition to the effects of the invention described, the following effects are exhibited.
That is, when the airbag is inflated, the airbag door is quickly bent at the hinge portion to open toward the passenger compartment, following the breakage at the planned breakage portion, and the airbag is smoothly deployed.
【００５２】一方、請求項３に記載された発明にあって
は、基材の破断予定部が基材よりも柔軟な補強樹脂部材
により構成されるため、エアバッグ膨張時に速やかに、
かつ確実に破断してエアバッグドアを開く。さらに、前
記基材の破断予定部では補強樹脂部材が車室側部材の表
面側へ屈曲しているため、平時に車室側部材表面が押圧
された際にも、その押圧方向に対する基材の強度が高
く、破断予定部に亀裂等を生じるのを防ぐことができ
る。加えて、エアバッグドアの破断部端面は硬質樹脂材
よりなる基材が、それより柔軟な補強樹脂部材で隠蔽さ
れることになるため、車室側部材として好ましいもので
ある。On the other hand, in the invention described in claim 3, since the portion to be broken of the base material is made of the reinforcing resin member which is softer than the base material, the airbag is promptly expanded when the airbag is inflated.
And surely rupture and open the airbag door. Furthermore, since the reinforcing resin member is bent toward the front surface side of the passenger compartment side member at the planned breakage portion of the base material, even when the passenger compartment side member surface is pressed in a flat state, The strength is high, and it is possible to prevent cracks and the like from occurring in the part to be broken. In addition, since the base material made of a hard resin material is covered by the reinforcing resin member which is softer than the end surface of the broken portion of the airbag door, it is preferable as a vehicle interior member.
【００５３】また、請求項４の発明は、請求項３におい
て、破断予定部で補強樹脂部材が表皮の裏面に接触して
いるため、破断予定部の表皮と補強樹脂部材間に発泡体
が介在せず、車室側部材が破断予定部で破断する際に発
泡体が飛散する恐れがなくなる。Further, in the invention of claim 4, in claim 3, since the reinforcing resin member is in contact with the back surface of the skin at the portion to be broken, the foam is interposed between the skin at the portion to be broken and the reinforcing resin member. Without doing so, there is no fear that the foam will scatter when the vehicle-cabin-side member breaks at the planned breakage portion.
【００５４】さらに請求項５の発明は、請求項３または
４における補強樹脂部材が破断予定部の両端末間で基材
表面側へ屈曲してヒンジ用屈曲部を形成し、該部で基材
の厚みが薄くなっているため、ヒンジ部で剛性が低くな
り、エアバッグ膨張時に、破断予定部での破断に続き、
エアバッグドアがヒンジ部で速やかに屈曲して車室内側
へ開き、エアバッグのスムーズな展開を実現する。Further, the invention of claim 5 is characterized in that the reinforcing resin member according to claim 3 or 4 is bent toward the base material surface side between both ends of the portion to be broken to form a bent portion for hinge, and the base material is formed at the portion. Since the thickness of the hinge is thin, the rigidity is low at the hinge part, and when the airbag is inflated, following the rupture at the planned rupture part,
The airbag door quickly bends at the hinge and opens to the inside of the vehicle, allowing the airbag to deploy smoothly.
【図１】請求項１に記載された発明の一実施例に係る車
室側部材の斜視図である。FIG. 1 is a perspective view of a passenger compartment member according to an embodiment of the invention described in claim 1. FIG.
【図２】図１のエアバッグドア付近を示す拡大斜視図で
ある。FIG. 2 is an enlarged perspective view showing the vicinity of the airbag door of FIG.
【図３】図１のａ−ａ断面図である。FIG. 3 is a sectional view taken along line aa of FIG. 1;
【図４】同実施例のエアバッグ膨張時を示す断面図であ
る。FIG. 4 is a cross-sectional view showing the airbag of the embodiment when inflated.
【図５】一旦膨張したエアバッグがしぼんだ状態を示す
断面図である。FIG. 5 is a cross-sectional view showing a state in which an airbag that has once inflated is deflated.
【図６】請求項２に記載された発明の一実施例における
エアバッグドア付近を示す斜視図である。FIG. 6 is a perspective view showing the vicinity of an airbag door in an embodiment of the invention described in claim 2;
【図７】図６のｂ−ｂ断面図である。FIG. 7 is a sectional view taken along the line bb of FIG. 6;
【図８】そのヒンジ部の拡大断面図である。FIG. 8 is an enlarged cross-sectional view of the hinge portion.
【図９】図６のｃ−ｃ断面図である。9 is a sectional view taken along line cc of FIG.
【図１０】請求項２に記載された発明の他の実施例にお
けるエアバッグドア付近を示す斜視図である。FIG. 10 is a perspective view showing the vicinity of an airbag door in another embodiment of the invention described in claim 2.
【図１１】図１０のｄ−ｄ断面図である。11 is a sectional view taken along line d-d of FIG.
【図１２】請求項３に記載された発明の一実施例に係る
車室側部材の断面図である。FIG. 12 is a cross-sectional view of a vehicle interior side member according to an embodiment of the invention as set forth in claim 3;
【図１３】同実施例のエアバッグ膨張時を示す断面図で
ある。FIG. 13 is a cross-sectional view showing the same embodiment when the airbag is inflated.
【図１４】同発明の他の実施例についてその破断予定部
を示す断面図である。FIG. 14 is a cross-sectional view showing a portion to be broken according to another embodiment of the present invention.
【図１５】請求項４に記載された発明の一実施例につい
てその破断予定部を示す断面図である。FIG. 15 is a cross-sectional view showing a portion to be broken in an embodiment of the invention described in claim 4;
【図１６】他の例における破断予定部を示す断面図であ
る。FIG. 16 is a cross-sectional view showing a planned breakage portion in another example.
【図１７】請求項５に記載された発明の一実施例におけ
るエアバッグドア付近を示す斜視図である。FIG. 17 is a perspective view showing the vicinity of an airbag door in an embodiment of the invention described in claim 5;
【図１８】図１７のｅ−ｅ断面図である。18 is a sectional view taken along the line ee in FIG. 17;
【図１９】一般的なエアバッグドアを一体に有する車室
側部材の斜視図である。FIG. 19 is a perspective view of a vehicle interior side member integrally including a general airbag door.
【図２０】そのｆ−ｆ断面図である。FIG. 20 is an ff sectional view thereof.
【図２１】そのエアバッグ膨張時を示す断面図である。FIG. 21 is a cross-sectional view showing the airbag inflated.
【図２２】エアバッグドアを一体に有する車室側部材の
他の従来例の断面図である。FIG. 22 is a cross-sectional view of another conventional example of a vehicle-cabin-side member that integrally has an airbag door.
【図２３】その一部を拡大して示す断面図である。FIG. 23 is a cross-sectional view showing a part of the device in an enlarged manner.
【図２４】そのエアバッグ膨張時を示す断面図である。FIG. 24 is a cross-sectional view showing the airbag when inflated.
１１，１１Ａ, １１Ｂ, ４１, ４１Ａ, ４１Ｂ, ４１
Ｃ, ４１Ｄ：エアバッグドア １５，１５Ａ, １５Ｂ：破断予定部 ２１，２１Ａ, ２１Ｂ, ４５：車室側部材本体 ３１，３１Ａ，３１Ｂ，５７, ５７Ａ，５７Ｂ，５７
Ｃ, ５７Ｄ：補強樹脂部材 ３２，３２Ａ，３２Ｂ，５８，５８Ａ, ５８Ｂ, ５８
Ｃ, ５８Ｄ：補強樹脂部材の屈曲部 ３４Ａ，３４Ｂ, ３５Ａ, ４９Ｄ：ヒンジ用屈曲部 ４６, ４６Ａ, ４６Ｂ, ４６Ｃ，４６Ｄ：基材 ４７, ４７Ａ，４７Ｂ，４７Ｃ，４７Ｄ：基材の破断予
定部 ５２，５２Ａ，５２Ｂ, ５２Ｃ，５２Ｄ：発泡体の破断
予定部 ５１, ５１Ａ, ５１Ｂ，５１Ｃ，５１Ｄ：発泡体 ５５Ａ，５５Ｂ，５５Ｃ，５５Ｄ：表皮 ５６，５６Ａ, ５６Ｂ, ５６Ｃ, ５６Ｄ：表皮の破断予
定部11, 11A, 11B, 41, 41A, 41B, 41
C, 41D: Airbag doors 15, 15A, 15B: Breaking planned portions 21, 21A, 21B, 45: Vehicle compartment side member main body 31, 31A, 31B, 57, 57A, 57B, 57
C, 57D: Reinforcing resin member 32, 32A, 32B, 58, 58A, 58B, 58
C, 58D: Bent portion of reinforcing resin member 34A, 34B, 35A, 49D: Bent portion for hinge 46, 46A, 46B, 46C, 46D: Base material 47, 47A, 47B, 47C, 47D: Breaking portion of base material 52, 52A, 52B, 52C, 52D: Part to be ruptured of foam 51, 51A, 51B, 51C, 51D: Foam 55A, 55B, 55C, 55D: Skin 56, 56A, 56B, 56C, 56D: Break of skin Scheduled section
Claims (5)
字状等に破断予定部が形成され、エアバッグ膨張時に前
記破断予定部から破断して開くエアバックドアを一体に
有する車室側部材において、 硬質樹脂からなる車室側部材本体と、 該車室側部材本体の硬質樹脂よりも柔軟な樹脂よりなっ
て前記エアバッグドアの裏側に略相当する車室側部材本
体の裏面に一体に設けられ、前記破断予定部で車室側部
材本体を分断するように車室側部材本体表面側へ屈曲
し、該屈曲部が薄肉とされて車室側部材本体表面に露出
している補強樹脂部材とよりなることを特徴とするエア
バッグドアを一体に有する車室側部材の構造。1. A substantially H-shaped or substantially U-shaped resin-made passenger compartment member.
A vehicle-body-side member that integrally includes an airbag door that has a planned breakage portion formed in a letter-like shape and that is opened by breaking from the planned breakage portion when the airbag is inflated, and It is made of a resin that is softer than the hard resin of the passenger compartment member body, and is integrally provided on the back surface of the passenger compartment member body that substantially corresponds to the back side of the airbag door. As described above, the airbag door is integrally formed with a reinforcing resin member that is bent toward the vehicle body side member body surface side, and the bent portion is thin and is exposed on the vehicle body side member body surface. The structure of the passenger compartment side member.
予定部の両端末間で車室側部材本体の表面側へ屈曲して
ヒンジ用屈曲部を形成し、該部で車室側部材本体の厚み
が薄くなっていることを特徴とするエアバッグドアを一
体に有する車室側部材の構造。2. The vehicle body member body according to claim 1, wherein the reinforcing resin member is bent between the two terminals of the portion to be broken toward the front surface side of the vehicle body member body to form a hinge bent portion. The structure of the vehicle interior side member integrally having an airbag door, characterized in that the thickness of the vehicle is reduced.
状等に破断予定部が形成され、エアバッグ膨張時に前記
破断予定部から破断して開くエアバックドアを一体に有
する車室側部材において、 硬質樹脂からなる基材に発泡体および表皮が積層された
車室側部材本体と、 前記基材の硬質樹脂よりも柔軟な樹脂よりなって前記エ
アバッグドアの裏側に略相当する基材の裏面に一体に設
けられ、前記破断予定部で基材を分断するように基材表
面側へ屈曲し、該屈曲部が薄肉となって基材表面に露出
している補強樹脂部材とよりなることを特徴とするエア
バッグドアを一体に有する車室側部材の構造。3. A vehicle having a substantially H-shaped or U-shaped breakable portion formed in a resin-cabin-side member, and integrally having an airbag door that breaks and opens from the breakable portion when an airbag is inflated. In the room side member, a body side member body in which a foam and a skin are laminated on a base material made of a hard resin, and a resin softer than the hard resin of the base material and substantially equivalent to the back side of the airbag door. A reinforcing resin member that is integrally provided on the back surface of the base material and is bent toward the surface of the base material so as to divide the base material at the portion to be broken, and the bent portion becomes thin and is exposed on the surface of the base material. A structure of a member on the vehicle interior side integrally having an airbag door, characterized by comprising:
脂部材が表皮の裏面に接触していることを特徴とするエ
アバッグドアを一体に有する車室側部材の構造。4. The structure of a vehicle interior side member integrally having an airbag door according to claim 3, wherein the reinforcing resin member is in contact with the back surface of the outer skin at a portion to be broken.
材が破断予定部の両端末間で基材表面側へ屈曲してヒン
ジ用屈曲部を形成し、該部で基材の厚みが薄くなってい
ることを特徴とするエアバッグドアを一体に有する車室
側部材の構造。5. The reinforcing resin member according to claim 3 or 4, wherein the reinforcing resin member is bent toward the base material surface side between both ends of the breakable portion to form a bent portion for hinge, and the thickness of the base material is thinned at this portion. The structure of the vehicle interior side member integrally having an airbag door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8202853A JPH09301013A (en) | 1996-03-15 | 1996-07-12 | Structure for car interior side member integrally having air bag door |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8715296 | 1996-03-15 | ||
| JP8-87152 | 1996-03-15 | ||
| JP8202853A JPH09301013A (en) | 1996-03-15 | 1996-07-12 | Structure for car interior side member integrally having air bag door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09301013A true JPH09301013A (en) | 1997-11-25 |
Family
ID=26428455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8202853A Pending JPH09301013A (en) | 1996-03-15 | 1996-07-12 | Structure for car interior side member integrally having air bag door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09301013A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999005007A1 (en) * | 1997-07-23 | 1999-02-04 | Toyota Shatai Kabushiki Kaisha | Panel for air bags and method of manufacturing the same |
| JP2001270395A (en) * | 2000-03-27 | 2001-10-02 | Mitsuboshi Belting Ltd | Instrument panel having air bag door |
| JP2002225667A (en) * | 2001-01-31 | 2002-08-14 | Mitsuboshi Belting Ltd | Air bag door-integrated instrument panel |
| EP1251039A1 (en) * | 2001-04-20 | 2002-10-23 | Sanko Gosei Kabushiki Kaisha | Airbag apparatus |
| JP2004066955A (en) * | 2002-08-06 | 2004-03-04 | Sanko Gosei Ltd | Air bag device for automobile |
| EP1219507A3 (en) * | 2000-12-25 | 2004-03-17 | Daihatsu Motor Co., Ltd. | Airbag apparatus |
| JP2006123719A (en) * | 2004-10-28 | 2006-05-18 | Mitsuboshi Belt Kaseihin Kk | Airbag integral-type instrument panel, and its manufacturing method |
| JP2006290298A (en) * | 2005-04-14 | 2006-10-26 | Nippon Plast Co Ltd | Interior panel for automobile |
| JP2007118894A (en) * | 2005-10-31 | 2007-05-17 | Inoac Corp | Hinge structure of airbag door |
| JP2009539669A (en) * | 2006-06-07 | 2009-11-19 | タカタ・ペトリ アーゲー | Airbag device for vehicle |
| JP2014100962A (en) * | 2012-11-17 | 2014-06-05 | Toyoda Gosei Co Ltd | Air bag cover and its manufacturing method |
-
1996
- 1996-07-12 JP JP8202853A patent/JPH09301013A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6835439B1 (en) | 1997-07-23 | 2004-12-28 | Toyota Shatai Kabushiki Kaisha | Panel for air bags and method of manufacturing the same |
| WO1999005007A1 (en) * | 1997-07-23 | 1999-02-04 | Toyota Shatai Kabushiki Kaisha | Panel for air bags and method of manufacturing the same |
| JP2001270395A (en) * | 2000-03-27 | 2001-10-02 | Mitsuboshi Belting Ltd | Instrument panel having air bag door |
| JP4656687B2 (en) * | 2000-03-27 | 2011-03-23 | 三ツ星化成品株式会社 | Instrument panel with airbag door |
| EP1219507A3 (en) * | 2000-12-25 | 2004-03-17 | Daihatsu Motor Co., Ltd. | Airbag apparatus |
| JP4495359B2 (en) * | 2001-01-31 | 2010-07-07 | 三ツ星化成品株式会社 | Structure of instrument panel with integrated airbag door |
| JP2002225667A (en) * | 2001-01-31 | 2002-08-14 | Mitsuboshi Belting Ltd | Air bag door-integrated instrument panel |
| EP1251039A1 (en) * | 2001-04-20 | 2002-10-23 | Sanko Gosei Kabushiki Kaisha | Airbag apparatus |
| JP2004066955A (en) * | 2002-08-06 | 2004-03-04 | Sanko Gosei Ltd | Air bag device for automobile |
| JP2006123719A (en) * | 2004-10-28 | 2006-05-18 | Mitsuboshi Belt Kaseihin Kk | Airbag integral-type instrument panel, and its manufacturing method |
| JP2006290298A (en) * | 2005-04-14 | 2006-10-26 | Nippon Plast Co Ltd | Interior panel for automobile |
| JP4668669B2 (en) * | 2005-04-14 | 2011-04-13 | 日本プラスト株式会社 | Automotive interior panels |
| JP2007118894A (en) * | 2005-10-31 | 2007-05-17 | Inoac Corp | Hinge structure of airbag door |
| JP2009539669A (en) * | 2006-06-07 | 2009-11-19 | タカタ・ペトリ アーゲー | Airbag device for vehicle |
| US7874580B2 (en) | 2006-06-07 | 2011-01-25 | Takata-Petri Ag | Airbag device for a motor vehicle |
| JP2014100962A (en) * | 2012-11-17 | 2014-06-05 | Toyoda Gosei Co Ltd | Air bag cover and its manufacturing method |
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