JP2007290477A - Instrument panel and its manufacturing method - Google Patents

Instrument panel and its manufacturing method Download PDF

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Publication number
JP2007290477A
JP2007290477A JP2006119235A JP2006119235A JP2007290477A JP 2007290477 A JP2007290477 A JP 2007290477A JP 2006119235 A JP2006119235 A JP 2006119235A JP 2006119235 A JP2006119235 A JP 2006119235A JP 2007290477 A JP2007290477 A JP 2007290477A
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Prior art keywords
foam
flexible wiring
wiring board
base material
instrument panel
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JP2006119235A
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JP4675273B2 (en
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Yukitake Ishikawa
幸毅 石川
Hiroshi Suyama
博史 須山
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Fujikura Ltd
Toyoda Gosei Co Ltd
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Fujikura Ltd
Toyoda Gosei Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1214—Anchoring by foaming into a preformed part, e.g. by penetrating through holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3008—Instrument panels

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  • Instrument Panels (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To decrease the number of part items, to facilitate attachment, and to have no influence on a shape of an instrument panel. <P>SOLUTION: The instrument panel 1 is provided with a base material 2 and a foam element 3 on a surface of the base material 2, and has a surface skin 4 laminated on a surface of the foam element 3, and a harness attached on a back surface of the base material 2. A hole 7 is formed on the base material 2, and a hole 8 is bored on a flexible wiring plate 5 used as a harness. The material of the foam element 3 filled and foamed between the base material 2 and the surface skin 4 from these holes 7, 8 to form the foam element 3, and simultaneously made to overflow from the hole 8 of the flexible wiring plate 5 to form a stopper portion 9 continuing to the foam element 3 so as to cover the periphery of the hole 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、自動車のインストルメントパネル及びその製造方法に関し、特に配線にフレキシブル配線板を用い、このフレキシブル配線板を発泡体で固定した構造のインストルメントパネル及びその製造方法に関するものである。   The present invention relates to an automotive instrument panel and a method for manufacturing the same, and more particularly to an instrument panel having a structure in which a flexible wiring board is used for wiring and the flexible wiring board is fixed with a foam, and a method for manufacturing the instrument panel.

従来、インストルメントパネルは、硬質プラスチック等からなる基材に、その表面で発泡成形された発泡体を有するものが広く用いられている。なお、その発泡体表面は、通常表皮で覆われている。また、前記インストルメントパネル等の裏側には、エアコンをはじめとする各種電装機器のためのハーネス（電線や配線の束）がクリップ等で保持される。ところが、インストルメントパネル等の裏側にはダクトやその他の部品が配置されるため、ハーネスとそれらが干渉して部品の配置が邪魔されたり、逆にハーネスの配線が部品により邪魔されることがあった。   Conventionally, instrument panels having a foam formed on the surface of a base material made of hard plastic or the like are widely used. The foam surface is usually covered with a skin. Further, on the back side of the instrument panel or the like, a harness (a bundle of electric wires and wiring) for various electrical equipment such as an air conditioner is held by a clip or the like. However, because ducts and other parts are placed on the back side of instrument panels, etc., the harness may interfere with the placement of the parts, or the wiring of the harness may be disturbed by the parts. It was.

そこで、基材とその表面に発泡体を、さらにその上に表皮を積層したインストルメントパネルにおいて、基材の発泡体側表面にフレキシブル電線の束としたハーネスを収容するハーネス収容溝が形成され、ハーネスの表面に発泡液を充填し成形後発泡体とすることによって基材と発泡体との間に該ハーネスを埋設したものが開発された（特許文献１参照）。
特開２００１−８８５７８号公報（第3頁、図２） Therefore, in an instrument panel in which a base material and a foam are laminated on the surface thereof, and a skin is further laminated thereon, a harness accommodating groove for accommodating a harness as a bundle of flexible wires is formed on the foam side surface of the base material. A material in which the harness is embedded between the base material and the foam was developed by filling the surface of the foam with a foaming liquid to form a foam after molding (see Patent Document 1).
JP 2001-88578 A (3rd page, FIG. 2)

特許文献１に記載の従来例では、ハーネスが基材の表皮側に配索してあるので、インストルメントパネルの表面形状がハーネスの影響を受け易く、またインストルメントパネルが衝撃を受けたときに、発泡体の厚さによりハーネスが悪い影響を受けることがあった。さらに、基材に溝を形成する必要があるため、溝の形成位置については、インストルメントパネル裏側に配設された他の部品との関係にも十分配慮する必要が生じた。   In the conventional example described in Patent Document 1, since the harness is routed on the skin side of the base material, the surface shape of the instrument panel is easily affected by the harness, and when the instrument panel receives an impact. The harness may be adversely affected by the thickness of the foam. Furthermore, since it is necessary to form a groove in the base material, it is necessary to give sufficient consideration to the relationship between the groove forming position and other components disposed on the back side of the instrument panel.

そこで、本発明は、ハーネスとして薄くて、可撓性のあるフレキシブル配線板を用い、このフレキシブル配線板の基材へ特別の部品を使用せずに固定でき、その結果部品点数を減らし、フレキシブル配線板がインストルメントパネルへの衝撃により悪影響を受けず、かつインストルメントパネルの形状がＦＰＣの形状の影響を受けないようにしたインストルメントパネルを提供するとともに、このようなインストルメントパネルを簡単に製造することのできる製造方法を提供することを目的とする。   Therefore, the present invention uses a thin and flexible flexible wiring board as a harness, and can be fixed to the base of this flexible wiring board without using any special parts, thereby reducing the number of parts and flexible wiring. We provide an instrument panel in which the plate is not adversely affected by the impact on the instrument panel, and the shape of the instrument panel is not affected by the shape of the FPC, and such an instrument panel is easily manufactured. An object of the present invention is to provide a manufacturing method that can be used.

上述の目的を達成するため、本発明は、基材とその表面に発泡体を設け、発泡体の表面に表皮を積層し、基材の裏面にハーネスを取り付けたインストルメントパネルにおいて、基材に穴を形成するとともに、ハーネスとして用いるフレキシブル配線板にも穴をあけ、発泡体の材料をこれらの穴から基材と表皮との間に充填発泡させて発泡体を形成すると同時に、フレキシブル配線板の穴から溢れ出させてこの穴の周囲を覆うように発泡体に連成されたストッパ部を形成したものである。また、本発明の製造方法は、発泡体成形金型の第１金型にストッパ部成形用キャビティを形成するとともに、このキャビティ内に挿通され突出するスライドピンを設け、このスライドピンの突出部分をフレキシブル配線板の穴に挿入してフレキシブル配線板をキャビティを塞ぐように第１金型にセットし、次いで前記スライドピンを基材の穴に挿入して基材をフレキシブル配線板に重ね合わせて第１金型にセットし、この基材との間に発泡体成形用キャビティが成形されるように第２金型を第１金型に締結し、発泡体成形用キャビティに発泡体成形材料を注入して発泡させつつスライドピンをストッパ部成形用キャビティの外側まで後退させ、基材の表面に成形された発泡体の表面に表皮を積層し、基材の裏面に成形されたストッパ部によりフレキシブル配線板から成るハーネスが取り付けられるものである。   In order to achieve the above-described object, the present invention provides an instrument panel in which a base material and a foam are provided on the surface, a skin is laminated on the surface of the foam, and a harness is attached to the back surface of the base material. In addition to forming holes, holes are also made in flexible wiring boards used as harnesses, and foam materials are filled and foamed between the base material and the skin from these holes to form foams. A stopper portion coupled to the foam is formed so as to overflow from the hole and cover the periphery of the hole. In the manufacturing method of the present invention, a stopper molding cavity is formed in the first mold of the foam molding mold, a slide pin inserted into the cavity is provided, and a protruding portion of the slide pin is provided. Insert the flexible wiring board into the hole of the flexible wiring board and set the flexible wiring board in the first mold so as to close the cavity, and then insert the slide pin into the hole of the base material and superimpose the base material on the flexible wiring board. Set in 1 mold, fasten 2nd mold to 1st mold so that foam molding cavity is molded between this base material and inject foam molding material into foam molding cavity While sliding, the slide pin is retracted to the outside of the stopper part molding cavity, the skin is laminated on the surface of the foam molded on the surface of the base material, and the stopper part molded on the back surface of the base material Harness consisting Rekishiburu wiring board in which it is mounted.

本発明によれば、基材とその表面に発泡体を設け、発泡体の表面に表皮を積層し、基材の裏面にハーネスを取り付けたインストルメントパネルにおいて、基材に穴を形成するとともに、ハーネスとして用いるフレキシブル配線板にも穴をあけ、発泡体の材料をこれらの穴から基材と表皮との間に充填発泡させて発泡体を形成すると同時に、フレキシブル配線板の穴から溢れ出させてこの穴の周囲を覆うように発泡体に連成されたストッパ部を形成したので、フレキシブル配線板を取り付けるための特別の部品は不要であり、インストルメントパネル製作時にその基材の裏面にフレキシブル配線板を簡単に取り付けることができる。また、フレキシブル配線板は、基材の裏面に取り付けられるため、インストルメントパネルへ衝撃が加わった際にもフレキシブル配線板が影響を受けにくく、かつフレキシブル配線板がインストルメントパネルの形状に影響を与えることもない。また、本発明の製造方法によれば、発泡体成形金型の第１金型にストッパ部成形用キャビティを形成するとともに、このキャビティ内に挿通され突出するスライドピンを設け、このスライドピンの突出部分をフレキシブル配線板の穴に挿入してフレキシブル配線板をキャビティを塞ぐように第１金型にセットし、次いで前記スライドピンを基材の穴に挿入して基材をフレキシブル配線板に重ね合わせて第１金型にセットし、この基材との間に発泡体成形用キャビティが成形されるように第２金型を第１金型に締結し、発泡体成形用キャビティに発泡体成形材料を注入して発泡させつつスライドピンをストッパ部成形用キャビティの外側まで後退させ、基材の表面に成形された発泡体の表面に表皮を積層し、基材の裏面に成形されたストッパ部によりフレキシブル配線板から成るハーネスが取り付けられるので、発泡体を発泡成形するだけで、基材にフレキシブル配線板を簡単に取り付けることができ、低コストでインストルメントパネルを製造することができる。   According to the present invention, in the instrument panel in which the base material and the surface thereof are provided with a foam, the outer skin is laminated on the surface of the foam, and the harness is attached to the back surface of the base material, a hole is formed in the base material, Holes are also made in the flexible wiring board used as a harness, and foam material is filled and foamed between these holes between the base material and the skin to form a foam, and at the same time, overflow from the holes in the flexible wiring board. Since the stopper part coupled to the foam is formed so as to cover the periphery of this hole, there is no need for special parts for mounting the flexible wiring board, and flexible wiring is provided on the back of the base material when the instrument panel is manufactured. The board can be easily attached. In addition, since the flexible wiring board is attached to the back surface of the base material, the flexible wiring board is hardly affected even when an impact is applied to the instrument panel, and the flexible wiring board affects the shape of the instrument panel. There is nothing. In addition, according to the manufacturing method of the present invention, the stopper part molding cavity is formed in the first mold of the foam molding mold, and the slide pin inserted into the cavity and protruding is provided. Insert the part into the hole of the flexible wiring board and set the flexible wiring board in the first mold so as to close the cavity, then insert the slide pin into the hole of the base material and overlay the base material on the flexible wiring board The second mold is fastened to the first mold so that the foam molding cavity is molded between the first mold and the foam molding cavity. The slide pin is retracted to the outside of the stopper part molding cavity while injecting and foaming, and the outer skin is laminated on the surface of the foam formed on the surface of the base material, and the stopper part formed on the back surface of the base material Because harness more made of a flexible wiring board is attached, only foamed molded foam, it is possible to attach the flexible wiring board easily to the substrate, it is possible to produce the instrument panel at low cost.

以下に、本発明の好適な実施形態を図面を参照にして説明する。   Preferred embodiments of the present invention will be described below with reference to the drawings.

図１は、図２のＡ−Ａ線断面図であり、インストルメントパネル１は、基材２、発泡体３、表皮４の積層体であり、基材２の裏面にフレキシブル配線板５を取り付けてある。また、フレキシブル配線板５は接続端子６を備えている。前記基材２には穴７を形成し、この穴７に対応するようにフレキシブル配線板５にも穴８を形成してある。これら穴７，８から発泡体３を形成する材料を充填発泡させると、この材料は穴７，８から溢れ出してフレキシブル配線板５の穴８の周囲で固化させると、ビスの頭のような形状となり、フレキシブル配線板５を基材２に固定するためのストッパ部９を形成する。このストッパ部９によりフレキシブル配線板５は基材２に取り付けられる。   FIG. 1 is a cross-sectional view taken along line AA in FIG. 2. The instrument panel 1 is a laminate of a base material 2, a foam 3 and a skin 4, and a flexible wiring board 5 is attached to the back surface of the base material 2. It is. In addition, the flexible wiring board 5 includes connection terminals 6. Holes 7 are formed in the substrate 2, and holes 8 are also formed in the flexible wiring board 5 so as to correspond to the holes 7. When the material for forming the foam 3 is filled and foamed from these holes 7 and 8, this material overflows from the holes 7 and 8 and solidifies around the holes 8 of the flexible wiring board 5. A stopper 9 for fixing the flexible wiring board 5 to the substrate 2 is formed. The flexible wiring board 5 is attached to the base material 2 by the stopper portion 9.

前記基材２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、スチレン無水マイレン酸共重合体等の樹脂を用いて射出成形などの手段により、所定の立体形状に成形される。前記発泡体３は、インストルメントパネル１の表面に緩衝性を付与するためのものである。発泡体３は、塩化ビニール、オレフィン系熱可塑性エラストマー、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成形して得ることができる。この発泡体３は基材２の表面で上記発泡原料等から発泡成形されたもので、その発泡成形時に生じる発泡体３の接着性によって基材２と表皮４と接着している。表皮４は、このインストルメントパネル１の表面を構成するもので、前記発泡体３表面に設けられている。この表皮４は軟質塩化ビニル樹脂、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、オレフィン系の熱可塑性プラスチックを用いることができる。そして、真空成形やパウダースラッシュ成形等によってインストルメントパネル１の形状に形成されている。   The base material 2 is made of a resin such as polypropylene, acrylonitrile / butadiene / styrene copolymer, acrylonitrile / styrene copolymer, modified polyphenylene oxide, styrene maleic anhydride copolymer, etc. Molded into a three-dimensional shape. The foam 3 is for imparting buffering properties to the surface of the instrument panel 1. The foam 3 can be obtained by foam molding by adding a foaming agent to vinyl chloride, an olefin-based thermoplastic elastomer, a styrene-based thermoplastic elastomer, a urethane-based thermoplastic elastomer, a polyester-based thermoplastic elastomer, or the like. The foam 3 is foam-molded from the foaming raw material or the like on the surface of the base material 2, and is bonded to the base material 2 and the skin 4 by the adhesiveness of the foam 3 generated during the foam molding. The skin 4 constitutes the surface of the instrument panel 1 and is provided on the surface of the foam 3. The skin 4 can be made of soft vinyl chloride resin, synthetic resin of vinyl chloride and acrylonitrile / butadiene / styrene copolymer, or olefin thermoplastic. And it is formed in the shape of the instrument panel 1 by vacuum forming, powder slush molding or the like.

前記フレキシブル配線板５としては、ＦＰＣと呼ばれるものの他にフレキシブルフラットケーブル（ＦＦＣ）と呼ばれるものも用いられ、ＦＦＣは、ポリエチレンフィルム等で被覆した電線を並列に並べたものをポリ塩化ビニル樹脂等からなる熱融着テープ等で被覆しさらに各電線を被覆した熱融着テープ間にスリット（穴）８を設けることによってフレキシブル電線の束として作製されたものである。   As the flexible wiring board 5, in addition to what is called FPC, what is called a flexible flat cable (FFC) is also used. The FFC is made of a polyvinyl chloride resin or the like in which electric wires covered with a polyethylene film or the like are arranged in parallel. It is produced as a bundle of flexible electric wires by providing slits (holes) 8 between the heat-sealing tapes coated with a heat-sealing tape or the like and further covering each electric wire.

図３は、基材２にフレキシブル配線板５、この例ではＦＰＣ５をストッパ部９で取り付けた状態のストッパ部９を上から見た図であり、穴８の周囲に発泡材料がはみ出して内部の発泡体３とこのストッパ部９とでＦＰＣ５を挟んでいる。このストッパ部９をビスの頭のような形状にするには、発泡体３の材料の注入後に椀形状の型（モールド）をＦＰＣ５に取り付けておけばよい。   FIG. 3 is a view of the stopper portion 9 in a state where the flexible wiring board 5, in this example, the FPC 5 is attached to the base material 2, with the stopper portion 9 being viewed from above. The FPC 5 is sandwiched between the foam 3 and the stopper portion 9. In order to form the stopper portion 9 like a screw head, a hook-shaped mold (mold) may be attached to the FPC 5 after the material of the foam 3 is injected.

図４は、基材２の穴７の個所に突部２Ａを形成し、この突部２ＡをＦＰＣ５の穴８に嵌め込んだ例を示す。突部２Ａが穴８に嵌まることにより、ＦＰＣ５の位置決めを図ることができる。   FIG. 4 shows an example in which a protrusion 2 </ b> A is formed at the location of the hole 7 of the base 2 and this protrusion 2 </ b> A is fitted into the hole 8 of the FPC 5. By positioning the protrusion 2A in the hole 8, the FPC 5 can be positioned.

図５及び図６は、穴８の形状を丸穴以外の形状にした例を示し、楕円形状の穴８（図５）やＦＰＣ５の両側面に半円形状の２ヶの穴８（図６）を形成することによっても、ＦＰＣ５をストッパ部９で基材２に取り付けることができる。   5 and 6 show an example in which the shape of the hole 8 is a shape other than a round hole, and an elliptical hole 8 (FIG. 5) and two semicircular holes 8 (see FIG. 6) on both sides of the FPC 5. The FPC 5 can also be attached to the base material 2 by the stopper portion 9.

図７は、フレキシブル配線板５としてＦＦＣを用いた例を示し、スリット（穴）８の個所にストッパ部９を形成することにより、ＦＦＣ５を基材２に取り付けた例を示す。   FIG. 7 shows an example in which an FFC is used as the flexible wiring board 5, and shows an example in which the FFC 5 is attached to the substrate 2 by forming a stopper portion 9 at a slit (hole) 8.

図８ないし図１６は、インストルメントパネル１の製造方法を示す。図８は、第１金型１１及び第２金型１２とから成る発泡成形金型の第１金型１１の断面を示し、この第１金型１１にストッパ部９を成形するためのキャビティ１３が形成され、このキャビティ１３内に挿通されキャビティ１３の開口から外へ突出するスライドピン１４を第１金型１１に設けてある。図８において、このスライドピン１４は上下にスライドし、キャビティ１３の開口からフレキシブル配線板５と基材２の厚みの合計分突出し、上昇時は、キャビティ１３の底と同一面まで上昇する。   8 to 16 show a method for manufacturing the instrument panel 1. FIG. 8 shows a cross section of the first mold 11 of the foam molding mold comprising the first mold 11 and the second mold 12, and a cavity 13 for molding the stopper portion 9 in the first mold 11. The first mold 11 is provided with a slide pin 14 that is inserted into the cavity 13 and protrudes outward from the opening of the cavity 13. In FIG. 8, the slide pin 14 slides up and down, protrudes from the opening of the cavity 13 by the total thickness of the flexible wiring board 5 and the base material 2, and rises to the same plane as the bottom of the cavity 13.

図９は、フレキシブル配線板５の穴８にスライドピン１４を挿入し、このフレキシブル配線板５でキャビティ１３の開口を塞ぐように第１金型１１にこの配線板５をセットした状態を示す。次いで、基材２の穴７を介して配線板５と同様に基材２を第１金型１１にセットする（図９参照）。すなわち、穴７にスライドピン１４を挿入して、基材２を配線板５に重ね合わせる。次いで、図１０に示すように、第２金型１２を第１金型１１に締結する。この金型を締めた状態において、基材２の表面に発泡体３を成形するためのキャビティ１５が形成され、このキャビティ１５内に発泡体３の発泡成形材料１６を注入する（図１１参照）。   FIG. 9 shows a state in which the slide pin 14 is inserted into the hole 8 of the flexible wiring board 5 and the wiring board 5 is set in the first mold 11 so as to close the opening of the cavity 13 with the flexible wiring board 5. Next, the substrate 2 is set in the first mold 11 in the same manner as the wiring board 5 through the holes 7 of the substrate 2 (see FIG. 9). That is, the slide pin 14 is inserted into the hole 7 and the base material 2 is overlaid on the wiring board 5. Next, as shown in FIG. 10, the second mold 12 is fastened to the first mold 11. In a state where the mold is fastened, a cavity 15 for molding the foam 3 is formed on the surface of the base material 2 and the foam molding material 16 of the foam 3 is injected into the cavity 15 (see FIG. 11). .

前記成形材料１６を注入するとともに、図１２ないし図１４に示すように、スライドピン１４を上昇させて穴７，８及びキャビティ１３に成形材料１６を充填させる。キャビティ１３まで材料１６が充填され、発泡を完了してストッパ部９が成形されたならば、第１及び第２の金型１１，１２を開放して発泡体３の表面に表皮４を積層する（図１６参照）。   While injecting the molding material 16, as shown in FIGS. 12 to 14, the slide pin 14 is raised to fill the holes 7, 8 and the cavity 13 with the molding material 16. When the material 16 is filled up to the cavity 13 and the foaming is completed and the stopper portion 9 is formed, the first and second molds 11 and 12 are opened and the skin 4 is laminated on the surface of the foam 3. (See FIG. 16).

図１７は、前記ストッパ部９を複数個所形成するとき、ストッパ部９が隣接する配線板５の中間部をたるませて（わん曲）おく。これは、基材２と配線板５との熱膨張係数が異なるので、発泡成形時の温度変化で回路が切れるおそれがあるため、たるみ（わん曲）Ｙを設けるようにした。   In FIG. 17, when a plurality of the stopper portions 9 are formed, the intermediate portion of the wiring board 5 adjacent to the stopper portions 9 is slackened (curved). Since the base 2 and the wiring board 5 have different thermal expansion coefficients, there is a possibility that the circuit may be broken due to a temperature change during foam molding. Therefore, a sag (curvature) Y is provided.

図１８も、図１７と同様に、配線板５の回路が温度変化で切れるのを防止するため、ストッパ部９が隣接する配線板５の中間部に穴５Ａとスリット５Ｂとを形成したものである。スリット５Ｂは穴５Ａを取り囲むように２つ円弧状のものを形成したが、その形状や数はこれに限定されるものではない。   In FIG. 18, similarly to FIG. 17, a hole 5 </ b> A and a slit 5 </ b> B are formed in the intermediate portion of the adjacent wiring board 5 in order to prevent the circuit of the wiring board 5 from being cut by temperature change. is there. Two slits 5B are formed so as to surround the hole 5A, but the shape and number are not limited to this.

図２のＡ−Ａ線断面図。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. インストルメントパネルの斜視図。The perspective view of an instrument panel. ストッパ部を上から見た図。The figure which looked at the stopper part from the top. 基材の穴の個所の変更例を示す断面図。Sectional drawing which shows the example of a change of the location of the hole of a base material. 穴を楕円とした例を示す平面図。The top view which shows the example which made the hole the ellipse. 穴を半円とした例を示す平面図。The top view which shows the example which made the hole a semicircle. ＦＦＣの取付例を示す平面図。The top view which shows the example of attachment of FFC. 発泡成形金型の第１金型の断面図。Sectional drawing of the 1st metal mold | die of a foaming metal mold | die. 第１金型にフレキシブル配線板をセットした断面図。Sectional drawing which set the flexible wiring board to the 1st metal mold | die. 第１金型に基材をセットした断面図。Sectional drawing which set the base material to the 1st metal mold | die. 第１，第２金型を締結したときの断面図。Sectional drawing when the 1st and 2nd metal mold | die is fastened. 発泡成形材料注入時の金型断面図。The metal mold sectional view at the time of foaming molding material injection. スライドピンのスライド時の断面図。Sectional drawing at the time of slide of a slide pin. さらにスライドピンをスライドさせたときの断面図。Furthermore, sectional drawing when sliding a slide pin. ストッパ部成形時の断面図。Sectional drawing at the time of stopper part shaping | molding. 金型から取り出した製品の断面図。Sectional drawing of the product taken out from the mold. フレキシブル配線板のストッパ部間の取り付け状態図。The attachment state figure between the stopper parts of a flexible wiring board. 図１７と同様の他の例を示す状態図。The state diagram which shows the other example similar to FIG.

符号の説明Explanation of symbols

１ インストルメントパネル
２ 基材
３ 発泡体
４ 表皮
５ フレキシブル配線板
７，８ 穴
９ ストッパ部
１１，１２ 第１及び第２金型
１３，１５ キャビティ
１４ スライドピン
１６ 成形材料 DESCRIPTION OF SYMBOLS 1 Instrument panel 2 Base material 3 Foam 4 Skin 5 Flexible wiring board 7,8 Hole 9 Stopper part 11,12 1st and 2nd metal mold | die 13,15 Cavity 14 Slide pin 16 Molding material

Claims (5)

基材とその表面に発泡体を設け、発泡体の表面に表皮を積層し、基材の裏面にハーネスを取り付けたインストルメントパネルにおいて、
基材に穴を形成するとともに、ハーネスとして用いるフレキシブル配線板にも穴をあけ、
発泡体の材料をこれらの穴から基材と表皮との間に充填発泡させて発泡体を形成すると同時に、フレキシブル配線板の穴から溢れ出させてこの穴の周囲を覆うように発泡体に連成されたストッパ部を形成したことを特徴とするインストルメントパネル。 In the instrument panel in which a foam is provided on the base and its surface, the skin is laminated on the surface of the foam, and a harness is attached to the back of the base.
In addition to forming holes in the base material, drill holes in flexible wiring boards used as harnesses,
The foam material is filled and foamed from these holes between the substrate and the skin to form the foam, and at the same time, the foam material overflows from the holes of the flexible wiring board and is connected to the foam so as to cover the periphery of the holes. An instrument panel having a formed stopper portion. 前記基材の穴に突起を形成し、この突起をフレキシブル配線板の穴に嵌め込んだことを特徴とする請求項１に記載のインストルメントパネル。   The instrument panel according to claim 1, wherein a protrusion is formed in the hole of the base material, and the protrusion is fitted into the hole of the flexible wiring board. 発泡体成形金型の第１金型にストッパ部成形用キャビティを形成するとともに、このキャビティ内に挿通され突出するスライドピンを設け、このスライドピンの突出部分をフレキシブル配線板の穴に挿入してフレキシブル配線板をキャビティを塞ぐように第１金型にセットし、
次いで前記スライドピンを基材の穴に挿入して基材をフレキシブル配線板に重ね合わせて第１金型にセットし、
この基材との間に発泡体成形用キャビティが成形されるように第２金型を第１金型に締結し、
発泡体成形用キャビティに発泡体成形材料を注入して発泡させつつスライドピンをストッパ部成形用キャビティの外側まで後退させ、
基材の表面に成形された発泡体の表面に表皮を積層し、
基材の裏面に成形されたストッパ部によりフレキシブル配線板から成るハーネスが取り付けられることを特徴とするインストルメントパネルの製造方法。 A stopper molding mold cavity is formed in the first mold of the foam molding mold, and a slide pin that is inserted into and protrudes into the cavity is provided. The protruding portion of the slide pin is inserted into the hole of the flexible wiring board. Set the flexible wiring board in the first mold to close the cavity,
Next, the slide pin is inserted into the hole of the base material and the base material is overlaid on the flexible wiring board and set in the first mold,
The second mold is fastened to the first mold so that the foam molding cavity is molded between the base and the base,
While the foam molding material is injected into the foam molding cavity and foamed, the slide pin is retracted to the outside of the stopper molding cavity,
Laminate the skin on the surface of the foam molded on the surface of the substrate,
A method for manufacturing an instrument panel, wherein a harness made of a flexible wiring board is attached by a stopper portion formed on the back surface of a base material. 前記隣接するストッパ部間のフレキシブル配線板の中間部をたるませたことを特徴とする請求項３に記載のインストルメントパネルの製造方法。   The instrument panel manufacturing method according to claim 3, wherein an intermediate portion of the flexible wiring board between the adjacent stopper portions is slackened. 前記隣接するストッパ部間のフレキシブル配線板の中間部に穴及びこの穴を取り囲む１又は２以上のスリットを形成したことを特徴とする請求項３又は４に記載のインストルメントパネルの製造方法。   The method for manufacturing an instrument panel according to claim 3 or 4, wherein a hole and one or more slits surrounding the hole are formed in an intermediate portion of the flexible wiring board between the adjacent stopper portions.
JP2006119235A 2006-04-24 2006-04-24 Instrument panel and manufacturing method thereof Expired - Fee Related JP4675273B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009166421A (en) * 2008-01-18 2009-07-30 Daikyonishikawa Corp Resin panel with foamed sealing material

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JPH10136541A (en) * 1996-09-05 1998-05-22 Harness Sogo Gijutsu Kenkyusho:Kk Body panel attachment structure of wiring harness
JPH10272998A (en) * 1997-03-28 1998-10-13 Mitsubishi Motors Corp Wiring structure of trim member
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JP2001088578A (en) * 1999-09-28 2001-04-03 Mitsuboshi Belting Ltd Instrument panel
JP2003048455A (en) * 2001-08-06 2003-02-18 Harison Toshiba Lighting Corp Fluorescent lamp device and on-vehicle instrument device
JP2005322844A (en) * 2004-05-11 2005-11-17 Sony Corp Circuit board and semiconductor device

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JPS6324021U (en) * 1986-07-31 1988-02-17
JPH08250872A (en) * 1995-03-07 1996-09-27 Canon Inc Mounting part of precision unit
JPH10136541A (en) * 1996-09-05 1998-05-22 Harness Sogo Gijutsu Kenkyusho:Kk Body panel attachment structure of wiring harness
JPH10272998A (en) * 1997-03-28 1998-10-13 Mitsubishi Motors Corp Wiring structure of trim member
JP2000052891A (en) * 1998-08-13 2000-02-22 Furukawa Electric Co Ltd:The Vehicle interior finishing material provided with flat wire harness
JP2001088578A (en) * 1999-09-28 2001-04-03 Mitsuboshi Belting Ltd Instrument panel
JP2003048455A (en) * 2001-08-06 2003-02-18 Harison Toshiba Lighting Corp Fluorescent lamp device and on-vehicle instrument device
JP2005322844A (en) * 2004-05-11 2005-11-17 Sony Corp Circuit board and semiconductor device

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Publication number Priority date Publication date Assignee Title
JP2009166421A (en) * 2008-01-18 2009-07-30 Daikyonishikawa Corp Resin panel with foamed sealing material

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