JP2003011765A - Method of manufacturing installment panel integrated with air bag door - Google Patents
Method of manufacturing installment panel integrated with air bag doorInfo
- Publication number
- JP2003011765A JP2003011765A JP2001197384A JP2001197384A JP2003011765A JP 2003011765 A JP2003011765 A JP 2003011765A JP 2001197384 A JP2001197384 A JP 2001197384A JP 2001197384 A JP2001197384 A JP 2001197384A JP 2003011765 A JP2003011765 A JP 2003011765A
- Authority
- JP
- Japan
- Prior art keywords
- core material
- air bag
- door
- instrument panel
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000011162 core material Substances 0.000 claims abstract description 98
- 229920005989 resin Polymers 0.000 claims abstract description 68
- 239000011347 resin Substances 0.000 claims abstract description 68
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000005187 foaming Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 230000007306 turnover Effects 0.000 abstract 3
- 210000003491 skin Anatomy 0.000 description 34
- 239000006260 foam Substances 0.000 description 9
- 230000000873 masking effect Effects 0.000 description 7
- 229920002397 thermoplastic olefin Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000009718 spray deposition Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 102100033029 Carbonic anhydrase-related protein 11 Human genes 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 101000867841 Homo sapiens Carbonic anhydrase-related protein 11 Proteins 0.000 description 1
- 101001075218 Homo sapiens Gastrokine-1 Proteins 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 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
- 239000012141 concentrate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Air Bags (AREA)
- Instrument Panels (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車のエアバッ
グ装置に関連し、特にはそのエアバッグドア部を有する
インストルメントパネルの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile air bag device, and more particularly to a structure of an instrument panel having an air bag door portion thereof.
【０００２】[0002]
【従来の技術】例えば自動車の助手席側に設けられるエ
アバッグ装置は、添付の図面の図１１に示すように、折
り畳まれたエアバッグＡがキャニスタと呼ばれる収容部
材（容器）Ｃ内に作動装置Ｉと共に収容されて助手席前
面の車室側部材Ｐであるインストルメントパネル内に格
納されている。エアバッグ収容部材Ｃの上部はエアバッ
グＡが車室内に展開するための開口部Ｏとして構成され
ていて、この展開開口部Ｏは平時はエアバッグドア部Ｄ
によって覆われており、一旦自動車が大きな衝撃を受け
た有事の際には、前記作動装置Ｉが作動し、膨張したエ
アバッグＡが当該エアバッグドア部Ｄを内部から押し開
いて車室内に展開するように構成されている。2. Description of the Related Art For example, as shown in FIG. 11 of the accompanying drawings, an airbag device provided on the passenger side of an automobile has a folded airbag A in an accommodation member (container) C called a canister. It is housed together with I and is housed in an instrument panel which is a passenger compartment side member P on the front side of the passenger seat. An upper portion of the airbag accommodating member C is configured as an opening O for deploying the airbag A into the vehicle compartment, and the deployment opening O is an airbag door D during normal times.
The vehicle is covered with the air bag A, and once the vehicle receives a large impact, the actuating device I is actuated, and the inflated airbag A pushes the airbag door D from the inside to deploy it in the vehicle interior. Is configured to.
【０００３】このエアバッグドアの展開開口部Ｏを覆う
エアバッグドア部の構造としては、エアバッグドア用部
材を別成形してこれをインストルメントパネルの該当空
所に取り付けるタイプのものと、インストルメントパネ
ルと一体にエアバッグドア部を形成するタイプのものが
あるが、この発明は前者の構造に関する。As the structure of the airbag door portion which covers the deployment opening O of the airbag door, there are a type in which an airbag door member is separately molded and attached to a corresponding empty space of an instrument panel, and a type in which the instrument is installed. The present invention relates to the former structure, although there is a type in which the airbag door portion is formed integrally with the ment panel.
【０００４】すなわち、図１１乃至図１６はインストル
メントパネルＰに一体にエアバッグドア部Ｄを形成した
従来例を示すものであるが、このインストルメントパネ
ルＰは合成樹脂発泡層７１上面に表皮７２を一体に有
し、該表皮７２のエアバッグ展開開口部Ｏに対応する所
定位置にはエアバッグドア部Ｄを画定する薄肉の破断予
定部７３が形成されている。この表皮７２の薄肉の破断
予定部７３は、表皮７２の成形後に高周波ウェルダーや
熱刃またはコールドプレスカッター、レーザ光等によっ
て切り込みやＶ溝を入れることにより形成される。図中
の符号７４はインストルメントパネルＰの裏面に設けら
れた芯材、７５はエアバッグドア部Ｄの裏面に設けられ
たエアバッグドア用芯材、７６はエアバッグ収容部材Ｃ
と芯材７４（及びエアバッグドア用芯材７５）とを固定
する取付部材、Ｔは車室側部材Ｐの破断予定部である。That is, FIGS. 11 to 16 show a conventional example in which an air bag door portion D is formed integrally with an instrument panel P. This instrument panel P has a synthetic resin foam layer 71 and a skin 72 on the upper surface thereof. Is formed integrally with the outer skin 72, and a predetermined thin breakable portion 73 that defines the airbag door portion D is formed at a predetermined position corresponding to the airbag deployment opening O of the outer skin 72. The thin scheduled breakage portion 73 of the skin 72 is formed by forming a cut or a V groove by a high-frequency welder, a hot blade, a cold press cutter, laser light, or the like after molding the skin 72. In the figure, reference numeral 74 is a core material provided on the back surface of the instrument panel P, 75 is an air bag door core material provided on the back surface of the air bag door portion D, and 76 is an air bag accommodating member C.
An attachment member for fixing the core member 74 (and the core member 75 for the airbag door) to each other, and T is a planned breakage portion of the passenger compartment member P.
【０００５】この構造にあっては、前記したように、エ
アバッグＡが作動膨張すると、エアバッグ展開開口部Ｏ
上部の車室側部材Ｐにおけるエアバッグドア部Ｄが裏面
側から押され、エアバッグドア用芯材７５を押し上げ、
その押上力によって表皮７２の薄肉の破断予定部７３に
応力が集中して破断し、インストルメントパネルＰがそ
の開裂（予定）部Ｔから開裂し、図１３のように、エア
バッグドア部Ｄが開く。図１３の符号７３ａ，７３ｂは
分断された表皮７２の破断（予定）部で、Ｔａ、Ｔｂは
同じく分断されたインストルメントパネルＰのその開裂
（予定）部を表す。エアバッグドア部Ｄの開放に伴って
エアバッグＡは車室内に展開する。In this structure, as described above, when the airbag A is actuated and inflated, the airbag deployment opening O is opened.
The airbag door portion D of the upper passenger compartment member P is pushed from the rear surface side to push up the airbag door core material 75,
Due to the pushing-up force, stress concentrates on the thin-walled breakage portion 73 of the skin 72 and breaks, the instrument panel P tears off from the tearing (planned) portion T, and the airbag door portion D is broken as shown in FIG. open. Reference numerals 73a and 73b in FIG. 13 denote fractured (planned) portions of the divided outer skin 72, and Ta and Tb denote the cleaved (planned) portions of the similarly divided instrument panel P. With the opening of the airbag door portion D, the airbag A is deployed in the passenger compartment.
【０００６】前記エアバッグドア一体型インストルメン
トパネルの製造方法は、図１４に示すように、インスト
ルメントパネルＰの芯材に係合した金属製のエアバッグ
ドア用芯材ＤをインストルメントパネルＰの芯材と共に
下金型５９上に設置する。このとき、インストルメント
パネルＰの芯材とエアバッグドア用芯材Ｄの芯材の間及
びエアバッグドアの芯材間には隙間５５が発生してい
る。ここで、上記インストルメントパネルＰの芯材とエ
アバッグドア用芯材Ｄの上に溶融樹脂を射出するが、こ
のとき上記隙間に射出した樹脂が入り込み、樹脂洩れが
発生する恐れがある。In the method of manufacturing the instrument panel integrated with the air bag door, as shown in FIG. 14, a metal air bag door core D engaged with a core of the instrument panel P is attached to the instrument panel P. It is installed on the lower die 59 together with the core material. At this time, a gap 55 is formed between the core material of the instrument panel P and the core material of the airbag door core material D and between the core material of the airbag door. Here, the molten resin is injected onto the core material of the instrument panel P and the core material D for the airbag door, but at this time, the injected resin may enter the gap and cause resin leakage.
【０００７】この問題に対し、上記隙間には、樹脂の洩
れ止めの為にマスキングテープを貼る必要があり、図１
４に示すように、実際に前記インストルメントパネルＰ
の芯材及びエアバッグドア用芯材Ｄの上にはマスキング
テープ５７を貼っていた。To solve this problem, it is necessary to attach a masking tape to the resin in order to prevent the resin from leaking.
As shown in FIG. 4, the instrument panel P is actually
The masking tape 57 was stuck on the core material and the core material D for the airbag door.
【０００８】しかし、上記エアバッグドア用芯材Ｄが金
属製のものは、その縁にヘミング加工（折り返し加工）
５３が施されており、その場合、エアバッグドア用芯材
Ｄのマスキングをする面と前記発泡型との間にエアバッ
グドア用芯材Ｄの厚みの３倍強の空隙５５が生じてしま
う。However, when the air bag door core material D is made of metal, hemming processing (folding processing) is applied to the edge thereof.
53 is provided, and in that case, a gap 55, which is more than three times the thickness of the airbag door core material D, is formed between the masking surface of the airbag door core material D and the foam mold. .
【０００９】この空隙５５の為に、発泡工程においてマ
スキングテープ５７の強度が発泡圧に負け、図１５に示
すようにエアバッグドアＤ間の空隙５５を埋めるように
マスキングテープ５７が伸びて開裂予定部分の発泡樹脂
層５９の厚みが厚くなったり、この部分の発泡樹脂の密
度が他の部分に比較して低くなっていた。開裂予定部分
の発泡樹脂層の厚み・密度にバラツキが発生することに
より、図１６に示すように、例えばレーザ光６１にて開
裂予定部分を不連続な孔６３を形成することによって形
成する場合、発泡樹脂層６５の厚みが厚くなることによ
って、発泡樹脂層６５でのレーザ光６１の拡散の影響で
より前記孔６３の径が大きくなる。従って、エアバッグ
ドア一体型インストルメントパネルの開裂予定部分の後
加工精度が悪くなり、外観上、インビジブルにならなけ
ればならないところが、ビジブルとなっていた。Due to the gap 55, the strength of the masking tape 57 is lost by the foaming pressure in the foaming process, and the masking tape 57 is expected to expand and tear so as to fill the gap 55 between the airbag doors D as shown in FIG. The thickness of the foamed resin layer 59 in the portion was increased, or the density of the foamed resin in this portion was lower than that in the other portions. When the thickness and density of the foamed resin layer in the portion to be cleaved are varied, as shown in FIG. 16, for example, when the portion to be cleaved is formed by forming a discontinuous hole 63 with laser light 61, As the foamed resin layer 65 becomes thicker, the diameter of the hole 63 becomes larger due to the influence of the diffusion of the laser light 61 in the foamed resin layer 65. Therefore, the post-processing accuracy of the portion to be torn of the instrument panel integrated with the airbag door deteriorates, and it is visible that the instrument panel has to be invisible.
【００１０】[0010]
【発明が解決しようとする課題】この発明は、このよう
な問題点に鑑み提案されたものであって、表皮、樹脂発
泡層、樹脂芯材からなるインストルメントパネルの一部
であり、樹脂発泡層の洩れ止めを目的としてエアバッグ
ドアの金属製の芯材間及び前記金属製の芯材と樹脂芯材
の間に貼付されたマスキングテープが樹脂の発泡圧で変
形することを、発泡型に立てられた衝立状突起により規
制し、開裂予定部分の樹脂厚みを均一にし、後加工精度
を向上することを目的とする。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and is a part of an instrument panel including a skin, a resin foam layer, and a resin core material. To prevent the layers from leaking, the masking tape attached between the metal core materials of the airbag door and between the metal core material and the resin core material is deformed by the foaming pressure of the resin. The purpose of the present invention is to regulate the height of the resin in the part to be cleaved by regulating it by the upright projections and improve the post-processing accuracy.
【００１１】すなわち、この発明は金属製のエアバッグ
ドア用芯材に、発泡樹脂層、表皮の順に積層してなるエ
アバッグドア一体型インストルメントパネルの製造方法
において、エアバッグドアの開裂予定部で、前記金属製
のエアバッグドアを不連続とし、エアバッグドア用芯材
の欠落部を形成し、該欠落部上に発泡樹脂層を射出成形
するに当って、エアバッグドア用芯材を載置する金型の
上記芯材欠落部位置にて、該金型を表皮側に向かって凸
形状とすることによって、前記発泡樹脂層の芯材欠落部
位置での厚みバラツキを少なくしたことを特徴とするエ
アバッグドア一体型インストルメントパネルの製造方法
にある。That is, according to the present invention, in a method for manufacturing an instrument panel integrated with an air bag door, which comprises a metal core material for an air bag door, a foamed resin layer and a skin layer laminated in that order, a portion to be cleaved of the air bag door. Then, the metal airbag door is discontinuous, a missing portion of the core material for the airbag door is formed, and when the foamed resin layer is injection-molded on the missing portion, the core material for the airbag door is At the core material missing portion position of the die to be placed, by making the mold convex toward the skin side, it is possible to reduce the thickness variation at the core material missing portion position of the foamed resin layer. This is a method for manufacturing a characteristic instrument panel integrated with an airbag door.
【００１２】請求項１に記載の発明によると、エアバッ
グドアの開裂予定部で、前記金属製のエアバッグドアを
不連続とし、エアバッグドア用芯材の欠落部を形成し、
該欠落部上に発泡樹脂層を射出成形するに当って、エア
バッグドア用芯材を載置する金型の上記芯材欠落部位置
にて、該金型を表皮側に向かって凸形状とすることによ
って、前記発泡樹脂層の芯材欠落部位置での厚みバラツ
キを少なくしたことにより、レーザ光によって開裂孔を
空ける場合であっても、前記孔の径にバラツキが無くな
り、外観上の不具合が無くなる。According to the first aspect of the present invention, the metal airbag door is discontinuous at the scheduled opening portion of the airbag door, and a missing portion of the airbag door core material is formed.
In injection-molding the foamed resin layer on the missing part, at the position of the missing part of the core of the mold for mounting the core material for the airbag door, the mold has a convex shape toward the skin side. By reducing the thickness variation at the core material missing portion position of the foamed resin layer, even when opening the cleavage hole by the laser light, there is no variation in the diameter of the hole, the appearance defect Disappears.
【００１３】請求項２に記載の発明は、前記金属製のエ
アバッグドア用芯材の縁を前記欠落部位置で折り返し加
工し折り返し部とし、前記折り返し部の表皮に最も近い
面と前記金型の凸形状の先端面とを略面一とした請求項
１に記載のエアバッグドア一体型インストルメントパネ
ルの製造方法にある。According to a second aspect of the present invention, an edge of the metal core material for an airbag door is folded back at the position of the missing portion to form a folded back portion, and the surface of the folded back portion closest to the skin and the mold. The method for manufacturing an instrument panel integrated with an air bag door according to claim 1, wherein the convex tip end surface is substantially flush.
【００１４】請求項２に記載の発明によると、前記金属
製のエアバッグドア用芯材の縁を前記欠落部位置で折り
返し加工し折り返し部とし、前記折り返し部の表皮に最
も近い面と前記金型の凸形状の先端面とを略面一とした
請求項１に記載のエアバッグドア一体型インストルメン
トパネルの製造方法とすることによって、より確実にマ
スキングテープが伸びることを防止し、ひいては発泡樹
脂層の厚みが増大するのを防ぎ、表皮外観をインビジブ
ルに保つことができる。According to the second aspect of the present invention, the edge of the metal core material for the air bag door is folded back at the position of the missing portion to form a folded back portion, and the surface of the folded back portion closest to the outer skin and the metal. The method for producing an instrument panel integrated with an air bag door according to claim 1, wherein the front end surface of the mold is substantially flush with the front surface of the mold. The thickness of the resin layer can be prevented from increasing and the appearance of the epidermis can be kept invisible.
【００１５】請求項３に記載の発明は、金属製のエアバ
ッグドア用芯材上に、発泡樹脂層、表皮の順に積層して
なるエアバッグドア一体型インストルメントパネルの製
造方法において、前記表皮を上金型に設置し、エアバッ
グドア用芯材が一体となったインストルメントパネル芯
材を下金型に設置する工程と、少なくとも２枚の金属板
からなるエアバッグドア用芯材の金属板間の対向縁を折
り返し加工し、折り返し部とすると共に、該折り返し部
間に存在する隙間を表皮側に向けて被覆材で被覆する工
程と、該隙間位置で、前記エアバッグドア用芯材を載置
する下金型が凸形状部を有すると共に、前記折り返し部
の表皮側の先端面と前記下金型の凸形状部の先端面とを
略面一として発泡樹脂を射出する工程と、を含むエアバ
ッグドア一体型インストルメントパネルの製造方法にあ
る。According to a third aspect of the present invention, there is provided a method for manufacturing an instrument panel integrated with an air bag door, which comprises a foamed resin layer and a skin layer laminated in this order on a metal core material for an air bag door. Is installed in the upper mold, and the instrument panel core, which is integrated with the airbag door core, is installed in the lower mold, and the metal of the airbag door core is made of at least two metal plates. A step of folding back opposite edges between the plates to form folded portions, and covering a gap existing between the folded portions with a covering material toward the skin side, and at the gap position, the air bag door core material With a lower die for mounting a convex portion, and a step of injecting a foamed resin with the tip surface on the skin side of the folded portion and the tip surface of the convex portion of the lower die substantially flush with each other, Air bag door integrated type including In the manufacturing method of the strike the instrument panel.
【００１６】請求項３に記載の方法によると、前記表皮
を上金型に設置し、エアバッグドア用芯材が一体となっ
たインストルメントパネル芯材を下金型に設置する工程
と、少なくとも２枚の金属板からなるエアバッグドア用
芯材の金属板間の対向縁を折り返し加工し、折り返し部
とすると共に、該折り返し部間に存在する隙間を表皮側
に向けて被覆材で被覆する工程と、該隙間位置で、前記
エアバッグドア用芯材を載置する下金型が凸形状部を有
すると共に、前記折り返し部の表皮側の先端面と前記下
金型の凸形状部の先端面とを略面一として発泡樹脂を射
出する工程と、を含むエアバッグドア一体型インストル
メントパネルの製造方法にあることから、発泡樹脂層の
金属製エアバッグドア用芯材の隙間位置上で発泡樹脂層
の厚みバラツキが少なくなり、レーザ光によって開裂孔
を開ける場合であっても、前記孔の径にバラツキが無く
なり、外観上の不具合が無くなる。According to a third aspect of the present invention, the step of installing the skin on the upper mold, and installing the instrument panel core, which is integrated with the airbag door core, on the lower mold, The facing edge between the metal plates of the core material for an airbag door made of two metal plates is folded back to form a folded portion, and the gap existing between the folded portions is covered with a covering material toward the skin side. Step, and at the gap position, the lower mold on which the core material for the airbag door is mounted has a convex shape portion, and the tip end surface on the skin side of the folded portion and the tip of the convex shape portion of the lower mold. The step of injecting the foamed resin so that the surfaces are substantially flush with each other, and the method for manufacturing an instrument panel integrated with an air bag door, which includes the step of forming the foamed resin layer on the gap position of the core material for the metal air bag door. The thickness variation of the foamed resin layer Eliminated, even when opening the opening hiatus by the laser beam, there is no variation in the diameter of the hole, appearance defects is eliminated.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。図１はこの発明構造の一実施例を示す自動車のイ
ンストルメントパネルの概略斜視図、図２は、金属製の
エアバッグドア用芯材をインストルメントパネル芯材へ
組み付けている様子を示した分解構成図、図３は樹脂発
泡層を射出成形後のエアバッグドア一体インストルメン
トパネルの断面斜視図である。図４はエアバッグドア部
分を示した模式図である。図５は、図４のＡ−Ａ断面図
で、エアバッグドアを発泡型に設置して発泡樹脂を射出
する直前の図である。図６は、表皮とエアバッグドア用
芯材との間に発泡樹脂を射出した後の積層体を示した概
略断面図である。図７は、エアバッグドア用芯材に発泡
樹脂の発泡圧がかかる方向を示した概略図である。図８
は、発泡樹脂を射出成形した後の積層体にレーザ加工を
施そうとしている図である。図９は、発泡樹脂を射出成
形した直後の下金型上の積層体を示した概略断面図であ
る。図１０は、本発明の別の実施形態である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 is a schematic perspective view of an automobile instrument panel showing an embodiment of the structure of the present invention, and FIG. 2 is an exploded view showing a state in which a metal airbag door core is assembled to the instrument panel core. FIG. 3 is a cross-sectional perspective view of the instrument panel integrated with the airbag door after the resin foam layer is injection molded. FIG. 4 is a schematic view showing an airbag door portion. FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4 and is a view immediately before the airbag door is installed in the foam mold and the foam resin is injected. FIG. 6 is a schematic cross-sectional view showing the laminated body after injecting the foamed resin between the outer skin and the airbag door core material. FIG. 7 is a schematic view showing the direction in which the foaming pressure of the foamed resin is applied to the airbag door core material. Figure 8
[FIG. 6] is a diagram in which laser processing is to be performed on the laminated body after injection molding of the foamed resin. FIG. 9 is a schematic cross-sectional view showing the laminated body on the lower mold immediately after injection molding of the foamed resin. FIG. 10 is another embodiment of the present invention.
【００１８】図１に示したように、この発明は、エアバ
ッグ一体型インストルメントパネル１に係り、特に発泡
樹脂層上面にエアバッグドア部１０を画定する破断予定
部として外観上は見えないティアライン４が形成された
表皮を一体に有するものに係る。As shown in FIG. 1, the present invention relates to an airbag-integrated instrument panel 1, and in particular, a tear that is not visible in appearance as a portion to be broken that defines an airbag door portion 10 on the upper surface of a foamed resin layer. The present invention relates to one integrally having a skin on which the line 4 is formed.
【００１９】本発明は特に金属製のエアバッグドアを使
用する場合に係る。その組み付け方法としては、図２に
示すように、インストルメントパネルの芯材７に金属製
のエアバッグドア用芯材５を組み付け、そして、表皮３
及びエアバッグドア用芯材５と一体となったインストル
メントパネルの芯材７とを金型内に設置し、発泡樹脂の
射出成形を行う。そして、発泡樹脂が射出成形された後
の図２のＡ−Ａ断面図が図３であり、金属製のエアバッ
グドア用芯材５はインストルメントパネルの芯材７にボ
ルト１９とナット２１によって固定されている。The present invention is particularly concerned with the use of airbag doors made of metal. As shown in FIG. 2, as a method of assembling, the metal core material 5 for the airbag door is assembled to the core material 7 of the instrument panel, and the skin 3
And the core material 7 of the instrument panel integrated with the core material 5 for the airbag door is installed in the mold, and the foamed resin is injection-molded. 2 is a sectional view taken along the line AA of FIG. 2 after the foamed resin is injection-molded, and the metal core material 5 for the airbag door is attached to the core material 7 of the instrument panel by the bolt 19 and the nut 21. It is fixed.
【００２０】図４はエアバッグドア部分を示した模式図
である。エアバッグドア２は２枚の金属板からなるエア
バッグドア用芯材５、開裂予定部分１１、ヒンジ部１０
からなっている。開裂予定部分１１上には、被覆材１３
が開裂予定部分を被覆している。FIG. 4 is a schematic view showing the airbag door portion. The airbag door 2 includes a core material 5 for an airbag door made of two metal plates, a portion 11 to be split, and a hinge portion 10.
It consists of A covering material 13 is provided on the portion 11 to be cleaved.
Covers the part to be cleaved.
【００２１】図５は、図４のＡ−Ａ断面図で、エアバッ
グドアを下金型に設置して発泡樹脂を射出する直前の図
である。金属板からなるエアバッグドア用芯材５はその
縁部で折り返し加工し、折り返し加工部１９を有する。
又、前記折り返し加工部１９間には、隙間２１が発生す
る。そして、隙間２１に発泡樹脂が流入するのを防ぐ為
に、隙間２１に跨って前記エアバッグドア用芯材５上に
被覆材１７によって被覆を行う。FIG. 5 is a sectional view taken along the line AA of FIG. 4 and is a view immediately before the airbag door is installed in the lower mold and the foamed resin is injected. The air bag door core material 5 made of a metal plate is folded at its edge and has a folded portion 19.
In addition, a gap 21 is formed between the folded-back processing portions 19. Then, in order to prevent the foamed resin from flowing into the gap 21, the covering material 17 covers the air bag door core 5 across the gap 21.
【００２２】このとき、被覆材が図７に示す発泡圧にて
被覆材が伸び、下型側に押し込まれ、前記隙間２１内迄
発泡樹脂が入り込むことによって、前記隙間２１上での
発泡樹脂層の厚みのバラツキがある。そこで、図５及び
図７に示すように、前記隙間２１位置での下型に凸形状
部１５を設け、その先端面を前記折り返し部１９の表皮
側の先端面２５と面一にすることによって、図６に示す
ように隙間２１位置での発泡樹脂層９の下端面が折り返
し部１９位置での発泡樹脂層９の下端面と同じ位置とな
り、前記隙間２１上での発泡樹脂層９の厚みのバラツキ
は少なくなる。図１０は、本発明の他の実施の形態であ
り、エアバッグドア用芯材の縁部を下金型側に折り返し
たときの状態を示した図である。At this time, the coating material expands by the foaming pressure shown in FIG. 7, is pushed into the lower mold side, and the foamed resin enters into the gap 21 to form a foamed resin layer on the gap 21. There are variations in thickness. Therefore, as shown in FIGS. 5 and 7, by providing a convex portion 15 on the lower mold at the position of the gap 21 and making its tip end surface flush with the tip end surface 25 of the folding portion 19 on the skin side. As shown in FIG. 6, the lower end surface of the foamed resin layer 9 at the position of the gap 21 is at the same position as the lower end surface of the foamed resin layer 9 at the position of the folded-back portion 19, and the thickness of the foamed resin layer 9 on the gap 21. Variation is reduced. FIG. 10 is another embodiment of the present invention and is a view showing a state in which an edge portion of the core material for an airbag door is folded back to the lower mold side.
【００２３】ここで、インストルメントパネル１は所定
の芯材７がインストルメントパネル形状に形成されたも
ので、芯材７の上面に発泡ポリウレタンなどからなる発
泡樹脂層９が、又、その上面が表皮３によって覆われて
いる。The instrument panel 1 has a predetermined core material 7 formed in the shape of an instrument panel. The core material 7 has a foamed resin layer 9 made of polyurethane foam or the like on the upper surface thereof. It is covered by the skin 3.
【００２４】表皮３の材質としては、塩化ビニール樹
脂、塩化ビニールとアクリロニトリル・ブタジエン・ス
チレン共重合体の合成樹脂、ＴＰＯ、熱可塑性ウレタン
エラストマー、熱硬化性ウレタンエラストマーを用いる
ことができる。そして、表皮３は、真空成形又はスラッ
シュ成形又はリムスプレー成形により所定のシート状に
成形する。As the material of the skin 3, vinyl chloride resin, synthetic resin of vinyl chloride and acrylonitrile / butadiene / styrene copolymer, TPO, thermoplastic urethane elastomer, or thermosetting urethane elastomer can be used. Then, the skin 3 is formed into a predetermined sheet by vacuum forming, slush forming, or rim spray forming.
【００２５】又、インストルメントパネル１の芯材７の
材質としては、ポリプロピレン、アクリロニトリル・ブ
タジエン・スチレン共重合体、アクリロニトリル・スチ
レン共重合体、変性ポリフェニレンオキサイド、スチレ
ン無水マレイン酸共重合体等の樹脂を用いることができ
る。好ましくは、オレフィン系熱可塑性エラストマー
（以下、ＴＰＯという。）を用いる。中でも、ポリプロ
ピレン樹脂とエチレンプロピレンゴムが１対１の組成と
なるように配合したＴＰＯが更に好ましい。これによっ
て、ＴＰＯのガラス転移点を−５０°Ｃ〜−６０°Ｃ程
度とすることができ、低温であっても脆くならず、自動
車用エアバッグドアとして十分に実用に耐えうる。As the material of the core material 7 of the instrument panel 1, resins such as polypropylene, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-styrene copolymer, modified polyphenylene oxide, styrene-maleic anhydride copolymer and the like are used. Can be used. Preferably, an olefinic thermoplastic elastomer (hereinafter referred to as TPO) is used. Above all, TPO in which the polypropylene resin and the ethylene propylene rubber are mixed so as to have a composition of 1: 1 is more preferable. As a result, the glass transition point of TPO can be set to about −50 ° C. to −60 ° C., it does not become brittle even at low temperatures, and can be sufficiently practically used as an airbag door for automobiles.
【００２６】エアバッグドア用芯材５としては、上記イ
ンストルメントパネル１の芯材７と同一の材料を使用で
きるが、本発明で使用する材料は金属で、鉄、アルミニ
ウム、マグネシウム、ステンレス等の一般の金属材料が
使用できるが、コストや強度の面からは鉄板を使用する
のが好ましい。As the core material 5 for the airbag door, the same material as the core material 7 of the instrument panel 1 can be used, but the material used in the present invention is a metal, such as iron, aluminum, magnesium or stainless steel. Although a general metal material can be used, it is preferable to use an iron plate in terms of cost and strength.
【００２７】発泡樹脂層９の材質としては、発泡ポリウ
レタンの他に、塩化ビニール、ＴＰＯ、スチレン系熱可
塑性エラストマー、ウレタン系熱可塑性エラストマー、
ポリエステル系熱可塑性エラストマー等に発泡剤を添加
することで発泡する発泡材を用いることができる。チレ
ン共重合体の合成樹脂、ＴＰＯ、熱可塑性ウレタンエラ
ストマー、熱硬化性ウレタンエラストマーを用いること
ができる。そして、表皮３は、真空成形又はスラッシュ
成形又はリムスプレー成形により所定のシート状に成形
する。As the material of the foamed resin layer 9, in addition to polyurethane foam, vinyl chloride, TPO, styrene-based thermoplastic elastomer, urethane-based thermoplastic elastomer,
A foam material that foams by adding a foaming agent to a polyester-based thermoplastic elastomer or the like can be used. Synthetic resin of Tylene copolymer, TPO, thermoplastic urethane elastomer, and thermosetting urethane elastomer can be used. Then, the skin 3 is formed into a predetermined sheet by vacuum forming, slush forming, or rim spray forming.
【００２８】[0028]
【発明の効果】上記のように、本発明は、エアバッグド
アの開裂予定部で、前記金属製のエアバッグドアを不連
続とし、エアバッグドア用芯材の欠落部を形成し、該欠
落部上に発泡樹脂層を射出成形するに当って、エアバッ
グドア用芯材を載置する下金型の上記芯材欠落部位置に
て、該金型を表皮側に向かって凸形状とすることによっ
て、前記発泡層の芯材欠落部位置での厚みバラツキを少
なくしたことにより、レーザ光によって開裂孔を空ける
場合であっても、前記孔の径にバラツキが無くなり、外
観上の不具合が無くなるという効果が有る。As described above, according to the present invention, the metal airbag door is discontinuous at the portion to be torn of the airbag door, and the missing portion of the core material for the airbag door is formed. In injection-molding the foamed resin layer on the portion, at the position of the core material missing portion of the lower die on which the core material for the airbag door is placed, the die has a convex shape toward the skin side. By reducing the thickness variation at the core material missing portion position of the foam layer, even when opening the cleavage hole by the laser light, the variation in the diameter of the hole is eliminated, and the appearance defect is eliminated. There is an effect.
【００２９】請求項２に記載の発明によると、前記金属
製のエアバッグドア芯材の縁を前記欠落部位置で折り返
し加工し折り返し部とし、前記折り返し部の表皮に最も
近い面と前記金型の凸形状の先端面とを略面一とした請
求項１に記載のエアバッグドア一体型インストルメント
パネルの製造方法とすることによって、より確実にマス
キングテープが伸びることを防止し、ひいては発泡樹脂
層の厚みが増大するのを防ぎ、表皮外観をインビジブル
に保つことができる効果が有る。According to the second aspect of the present invention, the edge of the metal airbag door core material is folded back at the position of the missing portion to form a folded back portion, and the surface of the folded back portion closest to the outer skin and the mold. The method of manufacturing an instrument panel integrated with an air bag door according to claim 1, wherein the convex front end surface of the mask is substantially coplanar with the masking tape. It has the effect of preventing the thickness of the layers from increasing and keeping the appearance of the epidermis invisible.
【００３０】請求項３に記載の発明によると、前記表皮
を上金型に設置し、エアバッグドア用芯材が一体となっ
たインストルメントパネル芯材を下金型に設置する工程
と、少なくとも２枚の金属板からなるエアバッグドア用
芯材の金属板間の対向縁を折り返し加工し、折り返し部
とすると共に、該折り返し部間に存在する隙間を表皮側
に向けて被覆材で被覆する工程と、該隙間位置で、前記
エアバッグドア用芯材を載置する下金型が凸形状部を有
すると共に、前記折り返し部の表皮側の先端面と前記下
金型の凸形状部の先端面とを略面一として発泡樹脂を射
出する工程と、を含むエアバッグドア一体型インストル
メントパネルの製造方法にあることから、発泡樹脂層の
金属製エアバッグドア用芯材の隙間位置上で発泡樹脂層
の厚みバラツキが少なくなり、レーザ光によって開裂孔
を開ける場合であっても、前記孔の径にバラツキが無く
なり、外観上の不具合が無くなるという効果が有る。According to the third aspect of the present invention, at least the step of installing the skin on the upper mold and installing the instrument panel core material integrated with the airbag door core material on the lower mold, The facing edge between the metal plates of the core material for an airbag door made of two metal plates is folded back to form a folded portion, and the gap existing between the folded portions is covered with a covering material toward the skin side. Step, and at the gap position, the lower mold on which the core material for the airbag door is mounted has a convex shape portion, and the tip end surface on the skin side of the folded portion and the tip of the convex shape portion of the lower mold. The step of injecting the foamed resin so that the surfaces are substantially flush with each other, and the method for manufacturing an instrument panel integrated with an air bag door, which includes the step of forming the foamed resin layer on the gap position of the core material for the metal air bag door. The thickness variation of the foamed resin layer Eliminated, even when opening the opening hiatus by the laser beam, there is no variation in the diameter of the hole, the effect that defect is eliminated on appearance there.
【図１】本発明構造の一実施例を示す自動車のインスト
ルメントパネルの概略斜視図である。FIG. 1 is a schematic perspective view of an automobile instrument panel showing an embodiment of the structure of the present invention.
【図２】金属製のエアバッグドア用芯材をインストルメ
ントパネルの芯材へ組み付けている様子を示した分解構
成図である。FIG. 2 is an exploded configuration diagram showing a state in which a metal core material for an airbag door is assembled to a core material of an instrument panel.
【図３】樹脂発泡層を射出成形後のエアバッグドア一体
インストルメントパネルの断面斜視図である。FIG. 3 is a cross-sectional perspective view of an instrument panel integrated with an airbag door after a resin foam layer is injection molded.
【図４】エアバッグドア部分を示した模式図である。FIG. 4 is a schematic view showing an airbag door portion.
【図５】図４のＡ−Ａ断面図で、エアバッグドアを発泡
型に設置して発泡樹脂を射出する直前の図である。5 is a cross-sectional view taken along the line AA in FIG. 4 and is a view immediately before the airbag door is installed in a foaming mold and the foamed resin is injected.
【図６】表皮とエアバッグドア用芯材との間に発泡樹脂
を射出した後の積層体を示した概略断面図である。FIG. 6 is a schematic cross-sectional view showing a laminated body after injecting a foamed resin between a skin and a core material for an airbag door.
【図７】エアバッグドア用芯材に発泡樹脂の発泡圧がか
かる方向を示した概略図である。FIG. 7 is a schematic diagram showing a direction in which a foaming pressure of a foamed resin is applied to a core material for an airbag door.
【図８】発泡樹脂を射出成形した後の積層体にレーザ加
工を施そうとしている図である。FIG. 8 is a diagram in which the laminated body after injection molding of the foamed resin is about to be laser-processed.
【図９】発泡樹脂を射出成形した直後の下金型上の積層
体を示した概略断面図である。FIG. 9 is a schematic cross-sectional view showing a laminated body on a lower mold immediately after injection molding of foamed resin.
【図１０】本発明の他の実施形態を示した図である。FIG. 10 is a view showing another embodiment of the present invention.
【図１１】一般的なエアバッグドア部を有するインスト
ルメントパネルの断面図である。FIG. 11 is a cross-sectional view of an instrument panel having a general airbag door portion.
【図１２】その要部の拡大断面図である。FIG. 12 is an enlarged cross-sectional view of the main part thereof.
【図１３】図１１に示したインストルメントパネルのエ
アバッグドア部が展開した状態を示す断面図である。13 is a cross-sectional view showing a state in which an airbag door portion of the instrument panel shown in FIG. 11 is expanded.
【図１４】従来の下金型に設置したエアバッグドア用芯
材とそれを覆った被覆材を示した概略断面図である。FIG. 14 is a schematic sectional view showing a core material for an air bag door installed in a conventional lower mold and a covering material covering the core material.
【図１５】図１４に示した状態で表皮とエアバッグドア
用芯材との間に発泡樹脂を射出成形した状態を示した断
面図である。FIG. 15 is a cross-sectional view showing a state in which a foamed resin is injection-molded between the skin and the core material for the airbag door in the state shown in FIG.
【図１６】レーザ光で開裂予定部を加工するときのレー
ザの分散状態を示した概念図である。FIG. 16 is a conceptual diagram showing a dispersed state of laser when processing a planned cleavage portion with laser light.
１ インストルメントパネル ３ 表皮 ４ ティアライン ５ エアバッグドア用芯材 ７ インストルメントパネルの芯材 ９ 発泡樹脂層 １０ ヒンジ部 １３ 被覆材 １５ 凸形状部 １９ 折り返し部 ２１ 隙間 ２３ 先端面 ２５ 先端面 1 Instrument panel 3 epidermis 4 Tier Line 5 Airbag Door Core Material 7 Instrument panel core 9 Foamed resin layer 10 Hinge part 13 Coating material 15 Convex part 19 Folding part 21 Gap 23 Tip surface 25 Tip surface
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ６０Ｋ 37/00 Ｂ６０Ｋ 37/00 Ｊ // Ｂ２９Ｋ 105:04 Ｂ２９Ｋ 105:04 Ｂ２９Ｌ 31:30 Ｂ２９Ｌ 31:30 Ｆターム(参考） 3D044 BA07 BA11 BA14 BB01 BC04 BC13 3D054 AA03 AA14 BB09 BB23 FF17 4F202 AD03 AD05 AD35 AG20 AH25 AM32 CA11 CB01 CB12 CK41 CQ01 CQ05 4F206 AD03 AD05 AD35 AG20 AH25 AM32 JA04 JB12 JB20 JQ81─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B60K 37/00 B60K 37/00 J // B29K 105: 04 B29K 105: 04 B29L 31:30 B29L 31:30 F term (reference) 3D044 BA07 BA11 BA14 BB01 BC04 BC13 3D054 AA03 AA14 BB09 BB23 FF17 4F202 AD03 AD05 AD35 AG20 AH25 AM32 CA11 CB01 CB12 CK41 CQ01 CQ05 4F206 AD03 AD05 AD35 AG20 AH25 AM32 J04JB12 JBQ12
Claims (3)
樹脂層、表皮の順に積層してなるエアバッグドア一体型
インストルメントパネルの製造方法において、エアバッ
グドアの開裂予定部で、前記金属製のエアバッグドアを
不連続とし、エアバッグドア用芯材の欠落部を形成し、
該欠落部上に発泡樹脂層を射出成形するに当って、エア
バッグドア用芯材を載置する金型の上記芯材欠落部位置
にて、該金型を表皮側に向かって凸形状とすることによ
って、前記発泡樹脂層の芯材欠落部位置での厚みバラツ
キを少なくしたことを特徴とするエアバッグドア一体型
インストルメントパネルの製造方法。1. A method of manufacturing an instrument panel integrated with an air bag door, which comprises a metal core material for an air bag door, a foamed resin layer, and a skin layer laminated in this order on the part to be cleaved at the air bag door. Discontinuing the metal airbag door, forming a missing part of the airbag door core,
In injection-molding the foamed resin layer on the missing part, at the position of the missing part of the core of the mold for mounting the core material for the airbag door, the mold has a convex shape toward the skin side. The method for manufacturing an instrument panel integrated with an air bag door is characterized in that the thickness variation at the core material missing portion position of the foamed resin layer is reduced.
前記欠落部位置で折り返し加工し折り返し部とし、前記
折り返し部の表皮に最も近い面と前記金型の凸形状の先
端面とを略面一とした請求項１に記載のエアバッグドア
一体型インストルメントパネルの製造方法。2. An edge of the metal airbag door core material is folded back at the missing portion position to form a folded back portion, and a surface of the folded back portion closest to the skin and a convex tip end surface of the mold are formed. The method for manufacturing an instrument panel integrated with an airbag door according to claim 1, wherein the instrument panel is substantially flush.
泡樹脂層、表皮の順に積層してなるエアバッグドア一体
型インストルメントパネルの製造方法において、前記表
皮を上金型に設置し、エアバッグドア用芯材が一体とな
ったインストルメントパネル芯材を下金型に設置する工
程と、少なくとも２枚の金属板からなるエアバッグドア
用芯材の金属板間の対向縁を折り返し加工し、折り返し
部とすると共に、該折り返し部間に存在する隙間を表皮
側に向けて被覆材で被覆する工程と、該隙間位置で、前
記エアバッグ用芯材を載置する下金型が凸形状部を有す
ると共に、前記折り返し部の表皮側の先端面と前記下金
型の凸形状部の先端面とを略面一として発泡樹脂を射出
する工程と、を含むことを特徴とするエアバッグドア一
体型インストルメントパネルの製造方法。3. A method of manufacturing an instrument panel integrated with an air bag door, which comprises a foamed resin layer and a skin laminated in this order on a metal core material for an air bag door, wherein the skin is placed on an upper mold. , A step of installing an instrument panel core material, in which the airbag door core material is integrated, in a lower mold, and folding back the facing edge between the metal plates of the airbag door core material composed of at least two metal plates A step of processing and forming a folded portion, and covering a gap existing between the folded portions with a covering material toward the skin side, and a lower mold for mounting the airbag core material at the gap position. A step of injecting foamed resin having a convex portion and making the front end surface on the skin side of the folded back portion and the front end surface of the convex portion of the lower mold substantially flush with each other. Instrument instrument with integrated bag door Manufacturing method of panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001197384A JP2003011765A (en) | 2001-06-28 | 2001-06-28 | Method of manufacturing installment panel integrated with air bag door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001197384A JP2003011765A (en) | 2001-06-28 | 2001-06-28 | Method of manufacturing installment panel integrated with air bag door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003011765A true JP2003011765A (en) | 2003-01-15 |
Family
ID=19034998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001197384A Pending JP2003011765A (en) | 2001-06-28 | 2001-06-28 | Method of manufacturing installment panel integrated with air bag door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003011765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013010455A (en) * | 2011-06-29 | 2013-01-17 | Fuji Heavy Ind Ltd | Vehicle interior panel |
| JP2013537489A (en) * | 2010-05-11 | 2013-10-03 | ジョンソン コントロールズ テクノロジー カンパニー | Vehicle interior assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254919A (en) * | 1990-03-06 | 1991-11-13 | Takata Kk | Manufacture of module cover of air bag |
| JPH05294196A (en) * | 1991-10-18 | 1993-11-09 | Nippon Plast Co Ltd | Air bag housing cover |
| JPH08253087A (en) * | 1995-03-20 | 1996-10-01 | Toyota Motor Corp | Member with air bag door and manufacturing thereof |
| JPH09301101A (en) * | 1996-05-14 | 1997-11-25 | Inoac Corp | Manufacture of cabin side member having air bag door part integrated therewith |
| JP2001071854A (en) * | 1999-09-03 | 2001-03-21 | Calsonic Kansei Corp | Air bag lid part structure of vehicle |
-
2001
- 2001-06-28 JP JP2001197384A patent/JP2003011765A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254919A (en) * | 1990-03-06 | 1991-11-13 | Takata Kk | Manufacture of module cover of air bag |
| JPH05294196A (en) * | 1991-10-18 | 1993-11-09 | Nippon Plast Co Ltd | Air bag housing cover |
| JPH08253087A (en) * | 1995-03-20 | 1996-10-01 | Toyota Motor Corp | Member with air bag door and manufacturing thereof |
| JPH09301101A (en) * | 1996-05-14 | 1997-11-25 | Inoac Corp | Manufacture of cabin side member having air bag door part integrated therewith |
| JP2001071854A (en) * | 1999-09-03 | 2001-03-21 | Calsonic Kansei Corp | Air bag lid part structure of vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013537489A (en) * | 2010-05-11 | 2013-10-03 | ジョンソン コントロールズ テクノロジー カンパニー | Vehicle interior assembly |
| US8794661B2 (en) | 2010-05-11 | 2014-08-05 | Johnson Controls Technology Company | Vehicle interior assembly |
| JP2013010455A (en) * | 2011-06-29 | 2013-01-17 | Fuji Heavy Ind Ltd | Vehicle interior panel |
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