JP2004155237A

JP2004155237A - Ornament edge member for vehicle, and its manufacturing method

Info

Publication number: JP2004155237A
Application number: JP2002320732A
Authority: JP
Inventors: Masaru Ikeda; 勝池田; Toshiaki Kadofuji; 利明角藤; Masatoshi Kurisaki; 正利栗崎
Original assignee: Tokai Kogyo Co Ltd; Seiwa Kogyo KK
Current assignee: Tokai Kogyo Co Ltd; Seiwa Kogyo KK
Priority date: 2002-11-05
Filing date: 2002-11-05
Publication date: 2004-06-03
Anticipated expiration: 2022-11-05
Also published as: JP3764136B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ornament edge member having high decorativeness manufacturable in a simple method and its manufacturing method. <P>SOLUTION: This ornament edge member for a vehicle comprises a long-shaped trim body (ornament edge member body) 20 extruded and formed from thermoplastic elastomer material, and a cloth-like cover member 30 that is formed separately from the trim body 20 and has a surface having a pattern and/or color different from those of the surface of the trim body 20. The cover member 30 is joined to at least part of the surface of the trim body 20, and they are stacked and integrated. The cover member 30 is made of woven fabric produced by regularly weaving fiber made of a material having compatibility with the elastomer material of the trim body 20 or non-woven fabric produced by irregularly entangling the same fiber. The woven fabric or non-woven fabric directs in an irregular direction between internal fibers 31 by texture or entangling of the fiber, has countless gaps 32 having an irregular shape, and can vent. The fibers 31 on the rear surface side of the stacked and integrated cover member 30 are fixed by thermal fusion to the elastomer material of the trim body 20. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、車体の開口縁や突出端縁等の部材の縁に沿って取付けられる長尺状の装飾縁部材、及びその製造方法に関するものである。
【０００２】
【従来の技術】
この種の装飾縁部材としては、内部に魚骨状の金属芯材を埋設した軟質ポリ塩化ビニール樹脂の押出成形材が広く使用されている。そして、装飾縁部材は、部材の縁に取付けられることにより、突出縁を覆って危険を防止すると共に、部材の装飾性を向上させる（例えば、特許文献１参照）。
【０００３】
【特許文献１】
実公平７−３３９５３号公報
【０００４】
前記ポリ塩化ビニール樹脂の押出成形材からなる装飾縁部材は、物理的、化学的特性は優れているが、不要になったときに焼却すると有害ガスを発生する恐れがあるとして、最近はこれに替えて熱可塑性エラストマー材料、特にオレフィン系熱可塑性エラストマー材料（以下、「ＴＰＯ」という）の使用が増加してきている。しかしながら、ＴＰＯはその材料中にポリプロピレンやポリエチレン等のオレフィン系樹脂を混入したものなので、接着性に乏しく、一般的に塗布等のコーティング処理が困難である（即ち、後に塗装膜の剥離が生じ易い）。
【０００５】
一方、装飾縁部材は前述したように装飾性を併せて要求されるので、ＴＰＯ材料の押出成形材単独では、その装飾要求品質を満たせない。このため、最近では、ＴＰＯ押出成形材表面を加飾する方法が種々提案されている。その一つとして、表面にコロナ放電等の処理を施して、その後に必要によってはプライマー層を形成し、その上に装飾層を接着や処理する方法がある。他の方法では、装飾縁部材本体とは異色を呈するエラストマー材料を共押出成形で一体的に押出す方法である。
【０００６】
前者の方法では、別途の処理を必要とするために工程が複雑となり、また処理条件の管理に厳密さと煩雑さを伴う。後者の方法では、複数の押出成形機を必要とするため、製造設備が大掛かりとなるだけでなく、装飾部に複数の異なる色や模様を要求されるときには、それらの変更に伴う作業に多くの時間を要する。
【０００７】
【発明が解決しようとする課題】本発明は、簡単な方法で製造できて装飾性の高い装飾縁部材、及びその製造方法の提供を課題としている。
【０００８】
【課題を解決するための手段】
上記の課題を解決するために請求項１の発明は、熱可塑性エラストマー材料から押出形成された長尺状の装飾縁部材本体と、前記装飾縁部材本体とは別体に作られて、自身の表面が装飾縁部材本体の表面とは異なる模様及び／又は色彩を呈する布状のカバー部材とを備え、前記カバー部材が装飾縁部材本体の表面の少なくとも一部に接合して積層一体化された車両用装飾縁部材であって、前記カバー部材は、装飾縁部材本体のエラストマー材料と相溶性を有する材料から成る繊維を規則的に織った織布、又は同繊維を不規則的に絡み合わせた不織布から成り、前記織布又は不織布は、前記繊維の織り目又は絡み合いで内部の繊維同士間に不規則方向を向き、かつ不規則形状の無数の間隙を有して通気可能であり、前記カバー部材は、積層一体化された接合部分でその裏面側の繊維が前記装飾縁部材本体にエラストマー材料と熱融着して固着されていることを特徴としている。
【０００９】
請求項１の発明によれば、カバー部材は、上記構成によって、裏面側の繊維が装飾縁部材本体に熱融着により強固に接合固着され、カバー部材を構成する表裏の各繊維は織られて一体化し、又は一体的に絡み合っているので、装飾縁部材本体とは異なる色彩又は模様を呈するカバー部材全体が装飾縁部材本体にしっかりと固着された車両用の装飾縁部材が得られる。カバー部材の織布又は不織布には、融着前に表面に予め所定の模様を形成しておくことができるので、容易に所望の模様がついた装飾縁部材が得られる。
【００１０】
また、請求項２の発明は、請求項１の発明において、前記カバー部材の織布又は不織布の中の不規則方向を向き、かつ不規則形状の無数の間隙内に、前記装飾縁部材本体を形成するエラストマー材料の一部が入り込んで固化しアンカー作用によってカバー部材は装飾縁部材本体の表面に機械的にも固着されていることを特徴としている。
【００１１】
請求項２の発明によれば、請求項１の発明の作用効果に加えて、装飾縁部材本体の表面とカバー部材とは、装飾縁部材本体を形成するエラストマー材料とカバー部材の裏面側の繊維との融着に加えて、上記アンカー作用によって機械的にも接合されるので、両者の固着状態は、強固で、かつ安定化している。また、エラストマー材料で形成された装飾縁部材本体と、カバー部材を構成する織布又は不織布との組み合せによっては、融着強度が小さい場合でも、前記アンカー作用による固着によって、装飾縁部材本体に対するカバー部材の接合（固着）強度が低下することがない。
【００１２】
また、請求項３の発明は、前記カバー部材の繊維同士は、カバー部材の厚さ方向で僅かに移動及び／又は変形可能であることを特徴としている。
【００１３】
請求項３の発明によれば、請求項１又は２の発明の上記作用効果に加えて、取付時において、長尺な装飾縁部材の軸線を曲げて取付けたり、或いは取付使用状態において、カバー部材に厚さ方向の圧縮力又は引張力が作用しても、カバー部材を構成する繊維同士がカバー部材の厚さ方向において僅かに移動又は変形して、カバー部材に発生する応力を緩和し、装飾縁部材の曲げ変形にカバー部材が良好に追随する。このため、装飾縁部材を曲げる際には、その表面に亀裂やしわが発生せず、またその曲げ作業が容易となる。これに対してカバー部材が伸縮しない場合には、装飾縁部材の曲げ作業の際にその表面に亀裂やしわが生じ易く、使用状態において内部に限度を超えた応力が内蔵している部分では、装飾縁部材本体に対してカバー部材の部分剥離が発生し易い。
【００１４】
また、請求項４の発明は、請求項１ないし３のいずれかの発明において、前記カバー部材を構成する繊維同士は、その面方向で僅かに移動及び／又は変形可能であることを特徴としている。
【００１５】
請求項４の発明によれば、請求項１ないし３のいずれかの発明の上記作用効果に加えて、カバー部材は面方向での伸縮性が付与されるために、面方向の圧縮力等が作用しても、面方向に移動して曲げ変形に追随する。また、請求項３の後段の作用効果が一層顕著に奏される。
【００１６】
また、請求項５の発明は、請求項１ないし４のいずれかの発明において、前記カバー部材は、厚さ方向に部分的に圧縮されて元の厚さよりも薄くなった複数の薄肉部分が規則的又は不規則的に形成され、前記薄肉部分とこれよりも厚い他の部分とは、色調の異なる模様として目視され得ることを特徴としている。
【００１７】
請求項５の発明によれば、請求項１ないし４のいずれかの発明の上記作用効果に加えて、薄肉部分では、この部分の繊維間を透過して、装飾縁部材本体の表面の色と繊維の色とが合わさって見えると共に、厚肉部分では、繊維の色だけが又は繊維の色を主体にした色が見える。このように、カバー部材は、部分圧縮により色調の異なる模様として目視され得るため、模様を必要とする部分では、必ずしも異色に処理した繊維を配列する必要がなくなる。
【００１８】
また、請求項６の発明は、請求項１ないし５のいずれかの発明において、前記カバー部材は、装飾縁部材本体の表面とは異色を呈するように処理された繊維で形成されていることを特徴としている。
【００１９】
請求項６の発明は、請求項１ないし５のいずれかの発明の上記作用効果に加えて、カバー部材を形成する繊維は予め着色されていて、後工程での着色処理が不要となるため、製造工程が簡略化される。また、後工程での着色に比較して、複数の着色の選択が容易である。
【００２０】
また、請求項７の発明は、請求項１ないし６のいずれかの発明において、前記カバー部材を形成する繊維は、装飾縁部材本体の材料よりも硬度が高い材料から成ることを特徴としている。
【００２１】
請求項７の発明は、請求項１ないし６のいずれかの発明の上記作用効果に加えて、装飾縁部材全体から見れば、その表面を構成するカバー部材の硬度が他の部分（装飾縁部材本体）の硬度よりも高いために、装飾縁部材の表面の耐磨耗性が高められる。
【００２２】
また、請求項８の発明は、請求項１ないし７のいずれかの発明において、前記カバー部材を形成する繊維は、装飾縁部材本体の材料よりも摩擦係数が小さいことを特徴としている。
【００２３】
請求項８の発明によれば、請求項１ないし７のいずれかの発明の上記作用効果に加えて、例えば、サンシェードと接することのある条件で、又は接して使用されるサンルーフトリムのように、装飾縁部材の表面が他の部材と摺動して使用されても、カバー部材と相手部材との間の摩擦及び摺動抵抗を減少させられる。
【００２４】
また、請求項９の発明は、請求項１ないし８のいずれかの発明において、前記装飾縁部材本体は、オレフィン系熱可塑性エラストマーで形成され、カバー部材は、オレフィン系樹脂繊維で形成されていることを特徴としている。
【００２５】
請求項９の発明によれば、請求項１ないし８のいずれかの発明の上記作用効果に加えて、オレフィン系樹脂繊維はオレフィン系熱可塑性エラストマーと相溶性を有するので、両者は良好に融着して良好な接合が得られる。また、他の多くの樹脂に比較して比重が小さいので、軽量な装飾縁部材が得られる。
【００２６】
また、請求項１０の発明は、請求項１ないし９のいずれかの発明において、前記装飾縁部材は、切断された長手方向の端末同士が融着で接合されて環状をなし、両端末の接合部において、装飾縁部材本体同士及びカバー部材同士が突合せ状態で融着されていることを特徴としている。
【００２７】
請求項１０の発明によれば、請求項１ないし９の発明の上記作用効果に加えて、カバー部材は、切断された端末同士でも融着接合されているので、切断端末から剥がれが生じない。また、装飾縁部材の本体同士も融着接合されているので、両端末は強固に接合される。
【００２８】
また、請求項１１の発明は、熱可塑性エラストマー材料から押出形成された長尺状の装飾縁部材本体と、前記装飾縁部材本体とは別体に作られて、自身の表面が装飾縁部材本体の表面とは異なる模様及び／又は色彩を呈する布状のカバー部材とを備え、前記カバー部材が装飾縁部材本体の表面の少なくとも一部に接合して積層一体化された車両用装飾縁部材の製造方法であって、
加熱溶融した熱可塑性エラストマー材料を押出成形型のオリフィスから押し出して、所定の横断面形状の前記装飾縁部材本体を成形している途中において、前記装飾縁部材本体のエラストマー材料と相溶性を有する材料からなる繊維を規則的に織った織布、又は繊維を不規則に絡ませた不織布からなって、内部に不規則方向を向き、しかも不規則形状の無数の間隙を有して通気可能なテープ状のカバー部材を連続して供給し、前記装飾縁部材本体を形成するエラストマー材料とカバー部材の材料とが融着可能な温度の状態で、前記装飾縁部材本体の表面の少なくとも一部に前記カバー部材を接触させて、カバー部材の裏面側の繊維を装飾縁部材本体の表面に熱融着させて積層一体化させることを特徴としている。
【００２９】
請求項１１の発明によれば、カバー部材は、上記した繊維により形成されて、装飾縁部材本体の押出成形時に発生するガスを透過し得るので、装飾縁部材本体とカバー部材との間にガス溜りが発生せずに、ほぼ全体の接合強度が均一となった状態で、装飾縁部材本体の表面の少なくとも一部にカバー部材が積層一体化された装飾縁部材が得られる。
【００３０】
また、請求項１２の発明は、請求項１１の発明において、前記カバー部材は、前記押出成形型内に供給されて、前記成形型内で装飾縁部材本体が形成された後に、又はその形成途中において、前記装飾縁部材本体に圧着されて融着により接合されることを特徴としている。
【００３１】
請求項１２の発明によれば、請求項１１の発明の上記作用効果に加えて、カバー部材は、加熱された成形型内を通過する途中で、前記成形型の熱を受けて予め加熱され、更に装飾縁部材本体との接触時に、前記装飾縁部材本体の熱を受けて裏面側の繊維が部分的に溶融するため、融着による接合が良好に行われる。また、前記接合の際に、カバー部材の裏面側における装飾縁部材本体表面の材料と接する繊維は、加熱溶融し又は融着に十分な温度に加熱されるが、多数の繊維内の空気の間隙が断熱層として作用するために、カバー部材の表面側繊維には、裏面側繊維程に熱が伝わらない。この結果、カバー部材は、その全体が溶かされたり、或いはその表面が劣化されたりすることはない。
【００３２】
また、請求項１３の発明は、請求項１１の発明において、装飾縁部材本体が押出成形型から押し出されて、装飾縁部材本体の表面が未だ融着可能な温度を保っている状態において、カバー部材が前記装飾縁部材本体に供給されて、形状保持された状態の装飾縁部材本体にカバー部材が圧着されて、融着により一体接合されることを特徴としている。
【００３３】
請求項１３の発明によれば、請求項１１の上記作用効果に加えて、カバー部材は、成形型から押し出された装飾縁部材本体との接触時に、これから熱を受けて、カバー部材の裏面側の繊維が部分的に溶融し、融着による接合が良好に行われる。このため、溶融温度が比較的低い繊維からなるカバー部材であっても、融着接合ができる。他の作用効果は、請求項１２の発明の後段の記載とほぼ同一である。
【００３４】
また、請求項１４の発明は、請求項１１ないし１３のいずれかの発明において、装飾縁部材本体に対するカバー部材の接合時に、両者を圧着状態で接触させて、装飾縁部材本体を形成するエラストマー材料の一部を流動させて、その一部をカバー部材の繊維間の間隙に喰い込ませてアンカー作用により固着させることを特徴としている。
【００３５】
請求項１４の発明によれば、請求項１１ないし１３のいずれかの発明の上記作用効果に加えて、装飾縁部材本体を形成する材料は加熱により軟化しているために、容易に流動してカバー部材を形成する繊維間の間隙内に入り込む。この結果、装飾縁部材本体とカバー部材とは、融着による固着（接合）に加えて、前記アンカー作用により機械的にも固着されるので、両者の接合強度が向上し、しかも接合状態が安定化する。
【００３６】
【発明の実施の形態】
以下、実施形態を挙げて、本発明を更に詳細に説明する。最初に、本発明に係るサンルーフトリム（装飾縁部材）Ｔが取付けられる車両のサンルーフＲの部分について説明し、その後にサンルーフトリムＴの構造、及びその製造方法について説明する。図１は、本発明に係るサンルーフトリムＴが取付けられるサンルーフＲの部分を主体に示した車両の斜視図であり、図２は、図１のＸ−Ｘ線拡大断面図であり、図３は、サンルーフトリムＴの部分拡大斜視図である。
【００３７】
図１及び図２に示されるように、車両のルーフパネルＰに設けられたサンルーフＲは、車両の前後方向Ｑに沿って移動する略四角形状の窓板２によりルーフパネルＰに形成された略四角形状のルーフ開口１を開閉する構成である。サンシェードボード３は、窓板２を通して車内に入り込む太陽光線を車内に取り入れたり遮蔽したりするために窓板２とは独立して移動する構成になっている。ルーフパネルＰは、車外側に配置されるルーフアウターパネルＰ_１と車内側に配置されるルーフインナーパネルＰ_２とで構成される。ルーフアウターパネルＰ_１は、ルーフ開口１の部分において、車内側に折れ曲がって周壁部４と、該周壁部４の下端部からルーフ開口１の側に更に折れ曲がったフランジ部５とを有している。一方、ルーフインナーパネルＰ_２のルーフ開口１に入り込んだパネル端部６は、前記ルーフアウターパネル（補強パネル）Ｐ_１のフランジ部５と重なり合ってフランジ重合部７を形成している。このフランジ重合部７は、ルーフ開口１の内部に入り込んで、フランジ重合部７の縁は全体形状が四角形枠状となっている。
【００３８】
前記サンシェードボード３は、不透明部材で構成され、透明の窓板２の車内側に窓板２と所定の間隔を保ってほぼ平行に配置されて、その目的と作用は前述の通りである。ガラス等の透明材で形成された窓板２は、その全周縁にシール材Ｓが取付けられて閉じたとき気密及び水密を保持して案内レール（図示せず）に案内支持されて、車両の前後方向Ｑに移動する。このシール材Ｓは、断面コの字状の取付基部１１と、ルーフアウターパネルＰ_１の周壁部４のほぼ上端部の突出部４ａに弾接してシール作用を果たすシール部１２と、前記取付基部１１の下面から斜外下方に向けて一体に形成されて、ルーフアウターパネルＰ_１とシール材Ｓとの間に雨水が入ったときに、水滴を外方に流す遮蔽リップ部１３とで構成される。
【００３９】
サンルーフトリムＴは、オレフィン系の熱可塑性エラストマー材料から押出形成された長尺材Ｔ’（図７参照）を所定長に切断してトリム中間品Ｔ’’ （図９参照）を形成して、後述の方法により、長手方向の両端面を一体に接合して前記ルーフ開口１のフランジ重合部７の全体形状に対応可能な環形枠状にして使用される。サンルーフトリムＴは、トリム本体２０と、このトリム本体２０のほぼ全表面に一体に積層されるカバー部材３０とで構成される。なお、日本国内で入手可能な「オレフィン系の熱可塑性エラストマー材料」としては、エーイーエスジャパン株式会社の商品名「サントプレーン」、三井化学株式会社の商品名「ミラストマー」、住友化学株式会社の商品名「住友ＴＰＥ」、リケンテクノス株式会社の商品名「レオストマー」等が挙げられる。
【００４０】
トリム本体２０は、断面略Ｕ字状をなしていて、前記フランジ重合部７に取付けられる取付基部２１と、この取付基部２１の反開口側から斜外下方（取付状態では、斜車内側）に向けて一体に設けられた延長リップ２２とで構成される。断面略Ｕ字状の取付基部２１には、同じく断面略Ｕ字状をした金属ストリップ等からなり、魚骨状に打ち抜かれた補強用の芯材２３が埋設され、前記取付基部２１の対向内側面には、それぞれ複数の保持リップ２４，２４が対向して設けられている。
【００４１】
前記カバー部材３０は、トリム本体２０を形成するオレフィン系のエラストマー材料と相溶性を有するオレフィン系樹脂繊維を規則的に織った織布又は同繊維を不規則的に絡み合わせた不織布からなり、テープ状をなしている。このカバー部材３０は、トリム本体２０の押出形成時において、取付基部２１を構成する車外側側片２１ａから延長リップ２２に至る部分の全表面に熱融着により一体積層化され、カバー部材３０の幅方向の両端部は、取付基部２１の車外側側片２１ａ及び延長リップ２２の各端縁からそれぞれ内側に折り曲げられている。なお、延長リップ２２と車内側側片２１ｂとの間の溝部には、天井トリム材２５の縁部が後に差し込まれ、延長リップ２２が前記縁部に覆い被さって縁部を覆うと共に支持する。
【００４２】
トリム本体２０の車外側側片２１ａから延長リップ２２に至る部分の表面に、前記繊維を織った織布、又は同繊維を不規則的に絡み合わせた不織布からなるカバー部材３０が熱融着により固着されて積層一体化されているのは、以下の理由による。即ち、トリム本体２０を形成する熱可塑性エラストマーはオレフィン系樹脂を含みカバー部材３０を形成する樹脂繊維３１はオレフィン系であって両者は相溶性を有していて、トリムＴの中間品Ｔ’’の製造時に両者は熱融着により良好に接合するためである。また、図６に示されるように、前記織布又は不織布は、前記繊維の織り目又は絡み合いで内部の繊維同士間に不規則方向を向き、かつ不規則形状の無数の間隙３２を有していて通気可能であり、トリム本体２０の車外側側片２１ａから延長リップ２２に至る部分を形成するエラストマー材料の一部２０ａが前記間隙３２内に入り込んで固化して生ずるアンカー作用によって、カバー部材３０は、トリム本体２０の表面に機械的に固着されていることにもよる。なお、図６において直線Ｌ_１は、トリム本体２０とカバー部材３０との見かけの境界の溶着部を示し、カバー部材３０内を横断する実線Ｌ_３は、間隙３２内に入り込んだ材料の先端面を示す。
【００４３】
カバー部材３０を構成する繊維同士は、カバー部材３０の厚さ方向及び面方向の一方に僅かに移動し、或いは変形するか、或いはその双方が可能となっている。このため、後述するように、環状に接合するとき、及びルーフ開口１のフランジ重合部７に取付けるときに、所定長のトリム中間品Ｔ’’を四角形枠状に曲げ変形させる必要があるが、この変形を支障なく行える。また、図３ないし図６に示されるように、カバー部材３０のうち車室内から最も見られ易い表面側には、部分的に厚さ方向に圧縮されて、他の部分よりも薄くなった多数の薄肉部３０ａが模様となって現れている。このため、薄肉部３０ａでは、この部分の繊維を透過して、トリム本体２０の表面の色（地色）と繊維の色とが合わさって見えると共に、薄肉部３０ａ以外の部分（残りの厚肉部）では、繊維の色のみが、或いは繊維の色を主体にした色が見える。このように、カバー部材３０は、部分圧縮により色調の異なる模様として目視（認識）され得るために、模様を必要とする部分で、必ずしも異色に処理した繊維を前もって配列する必要がなくなる。なお、図６において、直線Ｌ_２は、カバー部材３０に圧縮した模様を形成する前の厚さを示す線である。
【００４４】
カバー部材３０は、トリム本体２０の表面とは異色を呈するように予め着色、染色等の処理をされた繊維で形成することにより、即ち、予め望みの色に着色された繊維を選択使用することにより、後工程での着色処理が不要となって、製造工程を簡素化することもできる。このようにして、カバー部材３０を構成する繊維の色を選択する方法は、後工程で着色するのに比較して、着色が容易で、かつその選択範囲が広くなる。
【００４５】
なお、上記実施形態では、サンシェードボード３は、サンルーフトリムＴとの隙間をできるだけ小さくするように設定されているので、サンシェードボード３の開閉時にトリム本体２０の車外側面に接合されたカバー部材３０に接触する可能性のある構成である。よって、カバー部材３０を形成する繊維の材料としての硬度は、トリム本体２０の材料よりも高くすると共に、サンシェードボード３に対する摩擦係数をトリム本体２０の材料よりも低くなる材料を選択することが好ましい。これにより、サンルーフトリムＴ全体の耐磨耗性が高められると共に、サンシェードボード３との間の摩擦力及び摺動力を減少させられて、サンシェードボード３がサンルーフトリムＴに接触して開閉移動しても、サンシェードボード３は、長期間に亘ってスムーズに移動可能となる。
【００４６】
サンルーフトリムＴを構成するトリム本体２０の全表面に前記カバー部材３０を積層一体にして接合すると、車両の天井部において突出状態となっている延長リップ２２の突出先端縁がカバー部材３０で覆われるために、カバー部材３０の色や模様を前述した天井トリム材の表面の色や模様と一致又は類似させておけば、天井の開口縁部分が一体化して目視され、天井トリム材の表面の色や模様と異なるものとすれば、天井の開口縁部分が際立った強調部として目視されるので、目的に応じた装飾性が高められる。
【００４７】
次に、前記サンルーフトリムＴの製造方法について説明する。図７は、サンルーフトリムＴの製造装置の概略図であり、図８は、図７のＺ−Ｚ線拡大断面図である。図７において、サンルーフトリムＴの製造装置は、押出成形ダイ４１とカバー部材供給装置４２とカバー部材折曲げ装置４３と取付基部折曲げ装置４４と冷却装置４５と引取装置４６とを備えている。押出成形ダイ４１は、加熱されて溶融状のＴＰＯ材料が連続供給されて、取付基部２１の断面が略Ｖ字状に拡開されたトリム本体形成予定部２０’（図８参照）を押出形成するものである。カバー部材供給装置４２は、表面に模様を形成するための多数の薄肉部が形成された長尺帯状のカバー部材３０を前記押出成形ダイ４１に供給するための装置である。カバー部材折曲げ装置４３は、前記トリム本体形成予定部２０’の表面に溶着して接合されたカバー部材３０の幅方向の両端縁を内側に折り曲げて同様に溶着接合するための装置である。取付基部折曲げ装置４４は、前記トリム本体形成予定部２０’ の延長リップ２２と拡開状態の取付基部２１’を段階的に折り曲げて断面略Ｕ字状に形成するための装置である。冷却装置４５は、長尺状となって連続して押出形成されるサンルーフトリムＴの長尺材Ｔ’を冷却するための装置であり、引取装置４６は、前記長尺材Ｔ’に引張力を加えて引き取るための装置である。なお、図６において、４７は、押出成形ダイ４１の上流側に配置したアンコイラで、フープ状に巻回された芯材２３を引き出して、押出成形ダイ４１に連続して供給する。押出成形ダイ４１に供給された芯材２３は、押出されるトリム本体形成予定部２０’に一体的に埋設される。
【００４８】
長尺帯状をしたカバー部材３０を押出成形ダイ４１に連続供給するためのカバー部材供給装置４２は、原反から所定の一定幅にスリットされたカバー部材３０のアンコイラ５１と、前記カバー部材アンコイラ５１から引き出されたカバー部材３０の表面側に多数の薄肉部を形成して模様を付与するための一対の模様付与ローラ５２ａ，５２ｂと、前記押出成形ダイ４１の押出口の直前の部分に配置されて、この押出成形ダイ４１から連続して押し出される直前のトリム本体形成予定部２０’の表面に相対的に前記カバー部材３０を押し付けて一体に接合させるために、軸Ｃを中心に回転するカバー部材接合ローラ５３とを備えている。また、一対の模様付与ローラ５２ａ，５２ｂの一方のローラ５２ａの外周面には多数の模様付与凸部５２ａ’が形成されている。また、一対のローラ５２ａ，５２ｂは同一速度で矢印方向に共に駆動回転される。一方のローラ５２ａはスチール等の熱伝導の高い硬質材料で作られて加熱されていて、他方のローラ５２ｂは耐熱性のシリコンゴム等の柔軟材で作られていて、両ローラ５２ａ，５２ｂが回転するときに前記凸部５２ａ’の一部が他方のローラ５２ｂの周面に部分的に喰い込むように両ローラ５２ａ，５２ｂ間の距離が設定されている。なお、上記に代えて、予め薄肉部を形成しておいたカバー部材を用意してダイ４１に供給してもよい。この場合は両ローラ５２ａ，５２ｂは不要となる。
【００４９】
図示しない押出機からオレフィン系熱可塑性エラストマーの溶融材料が押出成形ダイ４１に連続して供給されて、この押出成形ダイ４１の内部において徐々にトリム本体形成予定部２０’が形成されて、押出成形ダイ４１の内部の押出口（オリフィス）の直前に配置されたカバー部材接合ローラ５３の部分において、図８に示されるように、前記トリム本体形成予定部２０’の表面には、カバー部材３０が被覆されてトリム本体形成予定部２０’に接合される。カバー部材接合ローラ５３に供給されるカバー部材３０は、加熱された押出成形ダイ４１の内部を通過する間に、この成形ダイ４１から熱を受けて予め加熱されており、更にトリム本体形成予定部２０’との接触時に、これからの熱を受けるため、カバー部材３０の裏面側の繊維は部分的に溶融しているか、又はトリム本体形成予定部２０’と接触したときに溶融するのに十分な温度に加熱されている。これによりトリム本体形成予定部２０’の表面へのカバー部材３０の融着による化学的接合が良好に行われる。更に、カバー部材３０とトリム本体形成予定部２０’との接合部においては、トリム本体形成予定部２０’を形成する熱可塑性エラストマーの溶融材料は圧縮が開放されるため、カバー部材３０の側に向けて幾分膨張し、カバー部材３０の樹脂繊維３１同士間の不規則形状の間隙３２内に入り込んで固化するのでアンカー作用が生じて、両者２０’，３０は機械的にも接合される。このように、異なる２種類の接合が相乗することにより、トリム本体形成予定部２０’にカバー部材３０は強固に接合して積層一体化される。
【００５０】
なお、溶融材料が押し出されたトリム本体形成予定部２０’は固化するまでにその表面からガスを放出し、発泡剤を含む場合には特に顕著となってガスを放出するが、カバー部材３０が通気可能であるためガスはカバー部材３０を通過するので、カバー部材３０の裏面にガス溜りが発生することがない。このこともトリム本体形成予定部２０’へのカバー部材３０の接合強度を低下させないことにつながる。
【００５１】
この接合の際に、カバー部材３０の裏面側におけるトリム本体形成予定部２０’と直接接触する裏面側の繊維は、接触時にトリム本体形成予定部２０’の熱により加熱されて溶融するが、カバー部材３０を構成する多数の繊維内の空気の間隙が断熱層として作用する。この結果、カバー部材３０の表面側繊維は、その裏面側繊維程に加熱されないために、カバー部材３０は、その全体が溶かされたり、或いはその表面が劣化することがない。図６に示されるように、カバー部材アンコイラ５１から引き出されたカバー部材３０は、一対の模様付与ローラ５２ａ，５２ｂを通過する間に、繊維の熱変形温度以上に加熱されたローラ５２ａからの熱によってカバー部材３０は軟化し、その全体が僅かに圧縮されると共に、カバー部材３０の表面側は、一方の模様付与ローラ５２ａの外周面に設けられた多数の模様付与凸部５２ａ’によって他の部分よりも大きく圧縮されて塑性変形し、図４及び図５に示すような多数の薄肉部３０ａが形成される。
【００５２】
図８に示されるように、押出成形ダイの押出口からは、トリム本体形成予定部２０’の表面側にカバー部材３０が一体に接合された状態で連続して押し出され、その直後に、カバー部材折曲げ装置４３によって、カバー部材３０の幅方向の両端縁がそれぞれ内側に折り曲げられて前述と同様に溶着し、トリム本体形成予定部２０’の車外側側片２１ａ’及び延長リップ形成予定部２２’の各端縁が前記カバー部材３０の幅方向の端部によって被覆される。その後に、取付基部折曲げ装置４４によって、トリム本体形成予定部２０’の拡開状態の取付基部２１’の各側片２１ａ’，２１ｂ’を段階的に折り曲げて断面略Ｕ字状に形成される。最後に、冷却装置４５を通過する間にサンルーフトリムＴの長尺材Ｔ’は、徐々に冷却されて、引取装置４６の通過後において所定の長さに切断され製造装置から取り出される。
【００５３】
このようにして形成されたサンルーフトリムＴの長尺材Ｔ’は、ルーフ開口１のフランジ重合部７の周長に対応する長さに切断されてトリム中間品Ｔ’’となる。次に、全体を環形状となるように、前記トリム中間品Ｔ’’の長手方向の両端面を突き合わせて一体に接合すると、完成品である環状のサンルーフトリムＴが得られる。
【００５４】
なお、上記製造方法においては、押出成形ダイ４１の内部にカバー部材３０を供給しているが、押出成形ダイ４１からトリム本体形成予定部２０’が押し出された直後に、その表面にカバー部材３０を一体に接合することも可能である。この場合には、図７で２点鎖線で示されるように、カバー部材アンコイラ５１’を設け、更にカバー部材接合ローラ５３’、カバー部材折曲げ装置４３’を押出成形ダイ４１の下流側に配置し、かつカバー部材３０の接合を安定化させるために、前記カバー部材接合ローラ５３’が配置された接合位置に、トリム本体形成予定部２０’を支持する支持台（図示せず）を設置する。この場合には、サンルーフトリムＴの長尺材Ｔ’の製造に際して、溶融温度がトリム本体形成予定部２０’の成形温度より比較的低い繊維からなるカバー部材であっても接合可能となり、押出成形ダイ４１の内部にカバー部材接合ローラ５３を配置する必要がなくなるために、押出成形ダイ４１の構造が簡単となる。
【００５５】
また、前記の実施形態ではトリム本体形成予定部２０’の拡開状態の取付基部２１’の各側片２１ａ’，２１ｂ’を折り曲げる加工を冷却前に行う方法について説明したが、この折り曲げ加工は冷却後に行うこともできる。トリム本体形成予定部２０’の厚さが比較的厚いものでは、冷却後に折り曲げ加工を行うことが好ましい。
【００５６】
次に、上記のようにして形成されたサンルーフトリムＴの長尺材Ｔ’を所定長に切断してトリム中間品Ｔ’’を得て、図９に示されるように、切断した前記トリム中間品Ｔ’’を環状に曲げて長手方向の切断端末同士を突き合わせて両端面を熱融着により一体に接合（その端末接合部を「Ｊ」で図示してある）すると、全体形状が環状の製品であるサンルーフトリムＴが形成される。
【００５７】
サンルーフトリムＴのカバー部材３０の織布又は不織布を構成している繊維同士は厚さ方向及び面方向の双方において僅かに移動可能であり、或いは変形可能であるので、即ち、厚さ方向及び面方向の双方において伸縮可能であり、前記トリム中間品Ｔ’’をわん曲させて環状のサンルーフトリムＴを形成する場合、そのわん曲部の外側及び内側では、それぞれ引張応力及び圧縮応力が発生する。カバー部材３０の繊維同士がカバー部材３０の厚さ方向又は面方向に僅かに移動又は変形するので、トリム中間品Ｔ’’を曲げる際には、表面に亀裂やしわが発生せず、またその曲げ作業が容易となる。これに対して、カバー部材３０が伸縮しない場合には、トリム中間品の曲げ作業の際にその表面に亀裂やしわが生じ易く、使用状態において内部に限度を超えた応力が内蔵している部分では、トリム本体に対してカバー部材の部分剥離が発生し易い。
【００５８】
最後に、図１０ないし図１３を参照してトリム中間品Ｔ’’の長手方向の両端末同士を接合する方法について説明する。図１０に示されるように、長尺状のトリム中間品Ｔ’’の長手方向の両端末部が１ｍｍ程度だけ保持金型６１の端面６１ａから突出するようにしてトリム中間品Ｔ’’を保持する（その突出量が「Ｔａ’’ 」で示されている）。この状態で図１１に示すようにトリム中間品Ｔ’’の両端末面Ｔｂ’’ を、予め両端末面Ｔｂ’’の間に配置されトリム中間品Ｔ’’の溶融温度以上の温度に加熱した熱板６２の両面に当てることにより、トリム中間品Ｔ’’の両端末部（カバー部材３０を含む）を加熱溶融させる。次に、図１２に示すようにトリム中間品Ｔ’’の両端末面Ｔｂ’’ の間から熱板６２を後退させる。その後、図１３に示すように直ちに対向配置された一対の保持金型６１を突き合わせて、トリム中間品Ｔ’’の両端末部を溶着接合する。この後脱型することにより、トリム中間品Ｔ’’が環状に形成されて、製品であるサンルーフトリムＴが得られる。上記の接合工程において、カバー部材３０の端末同士も互いに溶着されるので、カバー部材３０の端末からの剥がれが防止され、繊維のほつれも防止できる。
【００５９】
上記実施形態では、車両用装飾縁部材として、「サンルーフトリム」を例に挙げて、その構成と製造方法について説明したが、本発明の実施の対象は、「サンルーフトリム」に限られず、同様の目的で使用される他の縁部材に実施可能である。他の縁部材の例示としては、車両側面の開閉ドアと車体パネルとの間に配置されるウェザーストリップ、開閉トランク部分に使用されるウェザーストリップ（トランクシール）等が挙げられる。
【００６０】
【発明の効果】
本発明によれば、カバー部材の裏面側の繊維の一部が装飾縁部材本体に熱融着により強固に接合固着され、カバー部材を構成する表裏の各繊維は織られて一体化し、又は一体的に絡み合っているので、装飾縁部材本体とは異なる色彩又は模様を呈するカバー部材全体が装飾縁部材本体にしっかりと固着された車両用の装飾縁部材が得られると共に、カバー部材の織布又は不織布には、融着前に表面に予め所定の模様を形成しておくことができるので、容易に所望の模様がついた装飾縁部材が得られる。
【図面の簡単な説明】
【図１】本発明に係るサンルーフトリムＴが取付けられるサンルーフＲの部分を主体に示した車両の斜視図である。
【図２】図１のＸ−Ｘ線拡大断面図である。
【図３】サンルーフトリムＴの取付前の部分拡大斜視図である。
【図４】カバー部材３０の部分正面図である。
【図５】図４のＹ−Ｙ線断面図である。
【図６】サンルーフトリムＴのトリム本体２０とカバー部材３０との接合部の拡大断面模式図である。
【図７】本発明に係るサンルーフトリム用長尺材Ｔ’の製造装置の概略図である。
【図８】図７のＺ−Ｚ線拡大断面図である。
【図９】サンルーフトリムＴの平面図である。
【図１０】トリム中間品Ｔ’’の長手方向の両端末部が１ｍｍ程度だけ保持金型６１の端面６１ａから突出するようにしてトリム中間品Ｔ’’を保持した状態の図である。
【図１１】トリム中間品Ｔ’’の両端末を熱板に当てて加熱溶融させた状態の図である。
【図１２】一対の保持金型６１の間から熱板６２を後退させた状態の図である。
【図１３】一対の保持金型６１を突き合わせた状態の図である。
【符号の説明】
Ｊ：サンルーフトリムの端末接合部
Ｔ：サンルーフトリム（装飾縁部材）
Ｔ’’：トリム中間品
２０：トリム本体（装飾縁部材本体）
３０：カバー部材
３０ａ：カバー部材の薄肉部
３１：カバー部材を形成する繊維樹脂
３２：繊維樹脂間の間隙
４１：押出成形ダイ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a long decorative rim member attached along an edge of a member such as an opening edge or a protruding edge of a vehicle body, and a method of manufacturing the same.
[0002]
[Prior art]
As this kind of decorative rim member, an extruded material of a soft polyvinyl chloride resin in which a fish-bone-shaped metal core is embedded is widely used. The decorative edge member is attached to the edge of the member, thereby covering the protruding edge and preventing danger and improving the decorativeness of the member (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 7-33953
[0004]
The decorative edge member made of the extrusion molded material of the polyvinyl chloride resin has excellent physical and chemical properties.However, recently, there is a possibility that harmful gas may be generated when incinerated when it is no longer needed. Instead, the use of thermoplastic elastomer materials, especially olefin-based thermoplastic elastomer materials (hereinafter referred to as “TPO”) has been increasing. However, TPO is a material obtained by mixing an olefin-based resin such as polypropylene or polyethylene into the material, and therefore has poor adhesion and is generally difficult to apply such as coating (that is, the coating film is easily peeled off later). ).
[0005]
On the other hand, the decorative edge member is also required to have decorative properties as described above, and therefore, the extruded TPO material alone cannot satisfy the required decorative quality. For this reason, recently, various methods of decorating the surface of the TPO extruded material have been proposed. As one of the methods, there is a method in which a surface is subjected to a treatment such as corona discharge, and then a primer layer is formed, if necessary, and a decorative layer is bonded or treated thereon. In another method, an elastomer material exhibiting a different color from the decorative edge member body is integrally extruded by co-extrusion molding.
[0006]
In the former method, a separate process is required, which complicates the process, and requires strict and complicated management of the processing conditions. The latter method requires a plurality of extruders, which not only requires a large-scale manufacturing facility, but also requires a large number of different colors and patterns in the decorative part, and requires a large amount of work to accompany those changes. Takes time.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a decorative edge member which can be manufactured by a simple method and has high decorativeness, and a method of manufacturing the same.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is an elongated decorative edge member main body formed by extrusion from a thermoplastic elastomer material, and the decorative edge member main body is formed separately from the decorative edge member main body. A cloth-like cover member having a surface having a pattern and / or color different from the surface of the decorative edge member main body, wherein the cover member is bonded to at least a part of the surface of the decorative edge member main body and laminated and integrated. A decorative edge member for a vehicle, wherein the cover member is a woven fabric in which fibers made of a material compatible with an elastomer material of the decorative edge member main body are regularly woven, or the fibers are irregularly intertwined. The cover member is made of a non-woven fabric, the woven fabric or the non-woven fabric is woven or entangled with the fibers in an irregular direction between the fibers inside, and has a myriad of irregularly shaped gaps, and is permeable to air. Is a laminated one The back surface side of the fiber has been joined portion is characterized in that it is fixed to the elastomeric material and heat sealed to said decorative edge member body.
[0009]
According to the first aspect of the present invention, in the cover member, the fibers on the back side are firmly bonded and fixed to the decorative edge member main body by heat fusion, and the front and back fibers constituting the cover member are woven. Since they are integrated or integrally entangled, a decorative edge member for a vehicle is obtained in which the entire cover member having a color or pattern different from that of the decorative edge member body is firmly fixed to the decorative edge member body. Since a predetermined pattern can be formed on the surface of the woven or nonwoven fabric of the cover member before fusion, a decorative edge member having a desired pattern can be easily obtained.
[0010]
The invention according to claim 2 is the invention according to claim 1, wherein the decorative edge member main body is oriented in an irregular direction in the woven or nonwoven fabric of the cover member and in an infinite number of irregularly shaped gaps. A feature is that the cover member is mechanically fixed to the surface of the decorative rim member main body by the anchoring action by a part of the elastomer material to be formed and solidified.
[0011]
According to the second aspect of the present invention, in addition to the effects of the first aspect, the surface of the decorative edge member main body and the cover member are made of an elastomer material forming the decorative edge member main body and fibers on the back surface side of the cover member. In addition to the fusion bonding, the anchoring function mechanically joins together, so that the fixed state of both is strong and stable. Further, depending on the combination of the decorative edge member body formed of an elastomer material and the woven or non-woven fabric constituting the cover member, even if the fusion strength is low, the cover to the decorative edge member body is secured by the anchoring action. The joining (fixing) strength of the members does not decrease.
[0012]
The invention according to claim 3 is characterized in that the fibers of the cover member can be slightly moved and / or deformed in the thickness direction of the cover member.
[0013]
According to the third aspect of the present invention, in addition to the above-described effects of the first or second aspect of the present invention, the cover member may be attached by bending the axis of the long decorative rim member at the time of attachment, or at the time of attachment use. Even if a compressive force or a tensile force in the thickness direction acts on the cover member, the fibers constituting the cover member slightly move or deform in the thickness direction of the cover member, thereby relaxing the stress generated in the cover member and decorating the cover member. The cover member favorably follows the bending deformation of the edge member. For this reason, when bending the decorative edge member, cracks and wrinkles do not occur on the surface thereof, and the bending operation is facilitated. On the other hand, if the cover member does not expand or contract, the surface of the decorative edge member is likely to crack or wrinkle during bending work, and in the part where the stress exceeding the limit is built in during use, Partial peeling of the cover member from the decorative edge member main body is likely to occur.
[0014]
According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the fibers constituting the cover member are slightly movable and / or deformable in the plane direction. .
[0015]
According to the fourth aspect of the present invention, in addition to the above-mentioned effects of any one of the first to third aspects, since the cover member is provided with elasticity in the plane direction, a compressive force or the like in the plane direction is reduced. Even if it acts, it moves in the plane direction and follows the bending deformation. Further, the function and effect of the latter part of claim 3 are more remarkably exhibited.
[0016]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the cover member has a plurality of thin portions which are partially compressed in a thickness direction and become thinner than the original thickness. The thin portion and the other portion thicker than the thin portion can be visually observed as patterns having different color tones.
[0017]
According to the fifth aspect of the invention, in addition to the above-mentioned effects of any one of the first to fourth aspects, in the thin portion, the color of the surface of the decorative edge member main body is transmitted through the fibers of this portion. The color of the fiber appears to match, and in the thick portion, only the color of the fiber or a color mainly based on the color of the fiber is visible. As described above, since the cover member can be visually observed as a pattern having a different color tone due to partial compression, it is not always necessary to arrange fibers treated in different colors in a portion requiring the pattern.
[0018]
According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the cover member is formed of a fiber that has been treated so as to exhibit a different color from the surface of the decorative edge member main body. Features.
[0019]
According to the sixth aspect of the present invention, in addition to the above-mentioned effects of any one of the first to fifth aspects, the fibers forming the cover member are colored in advance, and the coloring treatment in a subsequent step is not required. The manufacturing process is simplified. In addition, it is easier to select a plurality of colors as compared to coloring in a later step.
[0020]
The invention of claim 7 is characterized in that, in any one of the inventions of claims 1 to 6, the fiber forming the cover member is made of a material having a higher hardness than the material of the decorative edge member main body.
[0021]
According to a seventh aspect of the present invention, in addition to the above-described effects of any one of the first to sixth aspects, the hardness of the cover member constituting the surface of the decorative edge member is different from that of the other portion (decorative edge member) when viewed from the entire decorative edge member. Since the hardness of the decorative edge member is higher than the hardness of the main body, the wear resistance of the surface of the decorative edge member is enhanced.
[0022]
The invention of claim 8 is characterized in that, in any one of the inventions of claims 1 to 7, the fiber forming the cover member has a smaller coefficient of friction than the material of the decorative edge member main body.
[0023]
According to the invention of claim 8, in addition to the above-mentioned effects of any one of claims 1 to 7, for example, a sunroof trim used in contact with or in contact with a sunshade, Even when the surface of the decorative edge member is used by sliding with another member, the friction and sliding resistance between the cover member and the mating member can be reduced.
[0024]
According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the decorative edge member main body is formed of an olefin-based thermoplastic elastomer, and the cover member is formed of an olefin-based resin fiber. It is characterized by:
[0025]
According to the ninth aspect of the present invention, in addition to the above-mentioned effects of any one of the first to eighth aspects, since the olefin-based resin fiber has compatibility with the olefin-based thermoplastic elastomer, both are well fused. Good bonding is obtained. Moreover, since the specific gravity is smaller than many other resins, a lightweight decorative edge member can be obtained.
[0026]
According to a tenth aspect of the present invention, in the invention according to any one of the first to ninth aspects, the decorative edge member is formed by joining the cut ends in the longitudinal direction by fusion to form an annular shape. In the portion, the decorative edge member bodies and the cover members are fused in abutting state.
[0027]
According to the tenth aspect, in addition to the above-described effects of the first to ninth aspects, since the cover member is fusion-bonded between the cut ends, the cover member does not peel off from the cut end. Further, since the main bodies of the decorative edge members are also fusion-bonded, both ends are firmly bonded.
[0028]
An eleventh aspect of the present invention provides a decorative edge member body extruded from a thermoplastic elastomer material, and the decorative edge member body is formed separately from the decorative edge member body. And a cloth-like cover member having a pattern and / or color different from the surface of the decorative edge member body, wherein the cover member is joined to at least a part of the surface of the decorative edge member body and laminated and integrated. A manufacturing method,
A material having compatibility with the elastomer material of the decorative edge member main body in the middle of molding the decorative edge member main body having a predetermined cross-sectional shape by extruding the heated and melted thermoplastic elastomer material from the orifice of the extrusion mold. Consisting of a woven fabric in which fibers are regularly woven, or a non-woven fabric in which fibers are entangled irregularly. The cover member is continuously supplied, and the cover is formed on at least a part of the surface of the decorative edge member main body at a temperature at which the elastomer material forming the decorative edge member main body and the material of the cover member can be fused. The method is characterized in that the members are brought into contact with each other, and the fibers on the back surface side of the cover member are thermally fused to the surface of the decorative edge member main body to be laminated and integrated.
[0029]
According to the eleventh aspect of the present invention, the cover member is formed of the above-described fiber and can transmit gas generated during extrusion molding of the decorative edge member main body. A decorative edge member in which the cover member is laminated and integrated on at least a part of the surface of the decorative edge member main body is obtained in a state where the pooling does not occur and the overall bonding strength is substantially uniform.
[0030]
According to a twelfth aspect of the present invention, in the invention of the eleventh aspect, the cover member is supplied into the extrusion molding die, and after or after the decorative edge member main body is formed in the molding die. In the above, the pressure-sensitive adhesive sheet is characterized in that it is press-bonded to the decorative edge member main body and joined by fusion.
[0031]
According to the twelfth aspect of the invention, in addition to the effect of the eleventh aspect, the cover member is heated in advance by receiving the heat of the molding die while passing through the heated molding die, Furthermore, at the time of contact with the decorative edge member main body, the fibers on the back side are partially melted by receiving the heat of the decorative edge member main body, so that the joining by fusion is favorably performed. In addition, at the time of the joining, the fibers in contact with the material on the surface of the decorative rim member main body on the back side of the cover member are heated and melted or heated to a temperature sufficient for fusion. Acts as a heat insulating layer, so that heat is not transmitted to the front side fibers of the cover member as much as the rear side fibers. As a result, the cover member is not melted as a whole or its surface is not deteriorated.
[0032]
According to a thirteenth aspect of the present invention, in the state of the eleventh aspect, when the decorative edge member main body is extruded from the extrusion mold and the surface of the decorative edge member main body still maintains a temperature at which fusion can be performed, The member is supplied to the decorative rim member main body, and the cover member is crimped to the decorative rim member main body in a shape-retained state, and is integrally joined by fusion.
[0033]
According to the thirteenth aspect of the present invention, in addition to the effect of the eleventh aspect, when the cover member comes into contact with the decorative edge member body extruded from the molding die, the cover member receives heat therefrom, and the back side of the cover member Are partially melted, and bonding by fusion is performed well. For this reason, fusion bonding can be performed even with a cover member made of fibers having a relatively low melting temperature. Other functions and effects are substantially the same as those described later in the twelfth aspect of the present invention.
[0034]
According to a fourteenth aspect of the present invention, in any one of the eleventh to thirteenth aspects, when the cover member is joined to the decorative edge member main body, both are brought into contact with each other in a crimped state to form the decorative edge member main body. Is made to flow, a part of which flows into the gap between the fibers of the cover member, and is fixed by an anchoring action.
[0035]
According to the fourteenth aspect of the invention, in addition to the above-mentioned effects of any one of the eleventh to thirteenth aspects, the material forming the decorative edge member main body is easily softened by heating, so that it flows easily. It penetrates into the gaps between the fibers forming the cover member. As a result, the decorative edge member main body and the cover member are mechanically fixed by the anchoring action in addition to the fixing (joining) by fusion bonding, so that the joining strength between them is improved, and the joining state is stable. Become
[0036]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to embodiments. First, the portion of the sunroof R of the vehicle to which the sunroof trim (decorative edge member) T according to the present invention is attached will be described, and then the structure of the sunroof trim T and a method of manufacturing the same will be described. FIG. 1 is a perspective view of a vehicle mainly showing a sunroof R to which a sunroof trim T according to the present invention is attached, FIG. 2 is an enlarged cross-sectional view taken along line XX of FIG. 1, and FIG. FIG. 2 is a partially enlarged perspective view of a sunroof trim T.
[0037]
As shown in FIGS. 1 and 2, a sunroof R provided on a roof panel P of a vehicle is formed on the roof panel P by a substantially rectangular window plate 2 that moves along the front-rear direction Q of the vehicle. The rectangular roof opening 1 is configured to be opened and closed. The sunshade board 3 is configured to move independently of the window plate 2 in order to take in or block the sun rays entering the vehicle through the window plate 2 into the vehicle. The roof panel P is a roof outer panel P arranged outside the vehicle. ₁ And roof inner panel P arranged inside the car ₂ It is composed of Roof outer panel P ₁ In the portion of the roof opening 1, there is a peripheral wall portion 4 that is bent toward the inside of the vehicle and a flange portion 5 that is further bent from the lower end of the peripheral wall portion 4 toward the roof opening 1. On the other hand, the roof inner panel P ₂ The panel end portion 6 that has entered the roof opening 1 of the roof outer panel (reinforcement panel) P ₁ And a flange overlapped portion 7 is formed. The flange overlap portion 7 enters the inside of the roof opening 1, and the entire edge of the flange overlap portion 7 has a rectangular frame shape.
[0038]
The sunshade board 3 is formed of an opaque member, and is disposed on the inside of the transparent window plate 2 in a substantially parallel relationship with the window plate 2 at a predetermined interval, and the purpose and operation thereof are as described above. The window plate 2 made of a transparent material such as glass is provided with a sealing material S attached to the entire periphery thereof and, when closed, is kept air-tight and water-tight and is guided and supported by a guide rail (not shown), and It moves in the front-back direction Q. The sealing material S includes a mounting base 11 having a U-shaped cross section and a roof outer panel P. ₁ And a sealing portion 12 which elastically contacts a projecting portion 4a substantially at the upper end of the peripheral wall portion 4 to perform a sealing action, and is integrally formed from the lower surface of the mounting base portion 11 obliquely outward and downward to form a roof outer panel P. ₁ And a shielding lip 13 for flowing water droplets outward when rainwater enters between the sealing material S and the sealing material S.
[0039]
The sunroof trim T is formed by cutting a long material T ′ (see FIG. 7) extruded from an olefin-based thermoplastic elastomer material into a predetermined length to form a trim intermediate product T ″ (see FIG. 9). By a method described later, both end surfaces in the longitudinal direction are integrally joined, and the roof opening 1 is used in an annular frame shape that can correspond to the entire shape of the flange overlapping portion 7 of the roof opening 1. The sunroof trim T includes a trim main body 20 and a cover member 30 that is integrally laminated on substantially the entire surface of the trim main body 20. The "olefin thermoplastic elastomer materials" available in Japan include "Santoprene" (trade name of AES Japan Co., Ltd.), "Milastomer" (trade name of Mitsui Chemicals, Inc.), and "Sumitomo Chemical Co., Ltd." The name is "Sumitomo TPE", and the product name of RIKEN TECHNOS CORPORATION "Leosummer".
[0040]
The trim main body 20 has a substantially U-shaped cross section, and is mounted on the mounting base 21 attached to the flange overlapped portion 7 and obliquely downward from the opposite side of the mounting base 21 (inside the inclined wheel in the mounted state). The extension lip 22 is provided integrally with the extension lip 22. The mounting base 21 having a substantially U-shaped cross section is buried with a reinforcing core 23 made of a metal strip or the like also having a substantially U-shaped cross section and punched in a fishbone shape. On the side surface, a plurality of holding lips 24, 24 are provided facing each other.
[0041]
The cover member 30 is made of a woven fabric in which olefin resin fibers having compatibility with the olefin elastomer material forming the trim main body 20 are regularly woven or a nonwoven fabric in which the fibers are irregularly entangled, and is a tape. It is in a state. The cover member 30 is integrally laminated by heat fusion to the entire surface of the portion from the vehicle outer side piece 21a to the extension lip 22 constituting the mounting base 21 when the trim body 20 is formed by extrusion. Both ends in the width direction are bent inward from the respective outer edges of the outer side piece 21 a of the mounting base 21 and the extension lip 22. An edge of the ceiling trim material 25 is inserted later into a groove between the extension lip 22 and the vehicle inner side piece 21b, and the extension lip 22 covers the edge to cover and support the edge.
[0042]
A cover member 30 made of a woven fabric made of the fibers or a non-woven fabric in which the fibers are entangled irregularly is heat-sealed on the surface of a portion of the trim body 20 from the vehicle outer side piece 21a to the extension lip 22. It is fixed and laminated and integrated for the following reason. That is, the thermoplastic elastomer forming the trim main body 20 contains an olefin-based resin, and the resin fibers 31 forming the cover member 30 are olefin-based, both of which are compatible with each other. The reason for this is that they are satisfactorily joined by heat fusion at the time of manufacturing. As shown in FIG. 6, the woven fabric or nonwoven fabric has an infinite number of irregularly shaped gaps 32 oriented in an irregular direction between the internal fibers due to the weave or entanglement of the fibers. The cover member 30 is formed by an anchoring action that is caused by a portion 20a of the elastomer material which is breathable and forms a portion extending from the outer side piece 21a of the trim body 20 to the extension lip 22 enters the gap 32 and solidifies. , Depending on the fact that it is mechanically fixed to the surface of the trim body 20. In FIG. 6, a straight line L ₁ Indicates a welded portion at an apparent boundary between the trim body 20 and the cover member 30, and a solid line L traversing the inside of the cover member 30. ₃ Indicates the front end surface of the material that has entered the gap 32.
[0043]
The fibers constituting the cover member 30 can slightly move in one of the thickness direction and the surface direction of the cover member 30 and / or can be deformed. For this reason, as will be described later, it is necessary to bend and deform the trim intermediate product T ″ having a predetermined length into a rectangular frame shape when joining in a ring shape and when attaching the trim intermediate product T ″ to the flange overlapping portion 7 of the roof opening 1. This deformation can be performed without hindrance. As shown in FIG. 3 to FIG. 6, on the surface side of the cover member 30 which is most easily seen from the vehicle interior, a large number of parts which are partially compressed in the thickness direction and become thinner than other parts are provided. The thin-walled portion 30a has appeared as a pattern. For this reason, in the thin part 30a, the fiber of this part penetrates and the surface color (ground color) of the trim main body 20 and the color of the fiber appear to match, and the part other than the thin part 30a (the remaining thick part) In (Part), only the color of the fiber or the color mainly composed of the fiber is visible. As described above, since the cover member 30 can be visually recognized (recognized) as a pattern having a different color tone by partial compression, it is not necessary to arrange fibers treated in different colors in advance in a portion requiring the pattern. In FIG. 6, a straight line L ₂ Is a line indicating the thickness before forming the compressed pattern on the cover member 30.
[0044]
The cover member 30 is formed of fibers that have been colored or dyed in advance so as to exhibit a different color from the surface of the trim main body 20, that is, selectively use fibers that have been colored in a desired color in advance. This eliminates the need for a coloring process in a later step, and can also simplify the manufacturing process. In this way, in the method of selecting the color of the fiber constituting the cover member 30, the coloring is easier and the selection range is wider than that in the later step.
[0045]
In the above embodiment, the sunshade board 3 is set so as to minimize the gap between the sunshade board 3 and the sunroof trim T. Therefore, when the sunshade board 3 is opened and closed, the cover member 30 joined to the vehicle exterior surface of the trim body 20 is opened. This is a configuration that may contact. Therefore, it is preferable that the hardness of the fiber forming the cover member 30 be higher than that of the material of the trim main body 20 and that the coefficient of friction with respect to the sunshade board 3 be lower than the material of the trim main body 20. . Thereby, the abrasion resistance of the entire sunroof trim T is enhanced, and the frictional force and the sliding force between the sunshade board 3 and the sunshade board 3 are reduced. However, the sunshade board 3 can move smoothly over a long period of time.
[0046]
When the cover member 30 is integrally laminated and joined to the entire surface of the trim main body 20 constituting the sunroof trim T, the protruding tip edge of the extension lip 22 projecting from the ceiling of the vehicle is covered with the cover member 30. For this reason, if the color and pattern of the cover member 30 are matched or similar to the color and pattern of the surface of the ceiling trim material described above, the opening edge portion of the ceiling is integrated and visually observed, and the color of the surface of the ceiling trim material is If it is different from the pattern or the pattern, the opening edge portion of the ceiling is visually recognized as a prominent emphasis portion, and the decorativeness according to the purpose is enhanced.
[0047]
Next, a method for manufacturing the sunroof trim T will be described. FIG. 7 is a schematic view of an apparatus for manufacturing the sunroof trim T, and FIG. 8 is an enlarged sectional view taken along the line ZZ of FIG. 7, the manufacturing apparatus of the sunroof trim T includes an extrusion die 41, a cover member supply device 42, a cover member bending device 43, a mounting base bending device 44, a cooling device 45, and a take-up device 46. The extruding die 41 is heated to supply the molten TPO material continuously, and extrudes the trim main body forming scheduled portion 20 ′ (see FIG. 8) in which the cross section of the mounting base 21 is expanded in a substantially V shape. Is what you do. The cover member supply device 42 is a device for supplying the extrusion die 41 with the long band-shaped cover member 30 having a large number of thin portions for forming a pattern on the surface. The cover member bending device 43 is a device for bending both end edges in the width direction of the cover member 30 welded and joined to the surface of the trim main body forming portion 20 ′ inward and similarly welding and joining. The mounting base bending device 44 is a device for bending the extension lip 22 and the expanded mounting base 21 'of the trim main body forming portion 20' in a stepwise manner to form a substantially U-shaped cross section. The cooling device 45 is a device for cooling a long material T ′ of the sunroof trim T which is formed in a continuous shape and is continuously extruded, and the take-off device 46 applies a tensile force to the long material T ′. It is a device for adding and taking over. In FIG. 6, reference numeral 47 denotes an uncoiler disposed upstream of the extrusion die 41, which pulls out the core material 23 wound in a hoop shape and continuously supplies the core material 23 to the extrusion die 41. The core material 23 supplied to the extrusion die 41 is integrally embedded in the extruded trim main body forming portion 20 '.
[0048]
The cover member supply device 42 for continuously supplying the elongated band-shaped cover member 30 to the extrusion die 41 includes an uncoiler 51 of the cover member 30 slit from the raw material into a predetermined fixed width, and the cover member uncoiler 51. A pair of patterning rollers 52a and 52b for forming a pattern by forming a large number of thin portions on the surface side of the cover member 30 drawn out of the cover member 30 and a portion immediately before the extrusion port of the extrusion die 41 are disposed. In order to press the cover member 30 relatively to the surface of the trim main body forming portion 20 ′ immediately before being continuously extruded from the extrusion die 41 and to integrally join the cover member 30, the cover rotating about the axis C is used. And a member joining roller 53. Also, a large number of pattern providing projections 52a 'are formed on the outer peripheral surface of one of the pair of pattern providing rollers 52a and 52b. The pair of rollers 52a and 52b are driven and rotated together at the same speed in the direction of the arrow. One roller 52a is made of a hard material having high heat conductivity such as steel and is heated, and the other roller 52b is made of a flexible material such as heat-resistant silicone rubber. Both rollers 52a and 52b rotate. The distance between the two rollers 52a and 52b is set so that a part of the convex portion 52a 'partially bites into the peripheral surface of the other roller 52b when the roller 52b is moved. Instead of the above, a cover member in which a thin portion is formed in advance may be prepared and supplied to the die 41. In this case, both rollers 52a and 52b become unnecessary.
[0049]
A molten material of an olefin-based thermoplastic elastomer is continuously supplied to an extrusion die 41 from an extruder (not shown), and a trim main body forming portion 20 ′ is gradually formed inside the extrusion die 41, and extrusion molding is performed. At a portion of the cover member joining roller 53 disposed immediately before the extrusion opening (orifice) inside the die 41, as shown in FIG. It is covered and joined to the trim main body forming portion 20 '. The cover member 30 supplied to the cover member joining roller 53 is heated in advance by receiving heat from the forming die 41 while passing through the inside of the heated extrusion forming die 41, and furthermore, the trim main body forming scheduled portion The fibers on the back surface side of the cover member 30 are partially melted or receive sufficient heat when they come into contact with the trim body formation scheduled portion 20 ′ because they receive heat from this when they come into contact with the portion 20 ′. Heated to temperature. Thereby, chemical bonding by fusion of the cover member 30 to the surface of the trim main body formation scheduled portion 20 'is favorably performed. Further, at the joint between the cover member 30 and the trim main body formation scheduled portion 20 ′, the compression of the molten material of the thermoplastic elastomer forming the trim main body formation scheduled portion 20 ′ is released. It slightly expands, and enters into the irregularly shaped gap 32 between the resin fibers 31 of the cover member 30 and solidifies, so that an anchoring action occurs, and the two 20 ′ and 30 are also mechanically joined. As described above, by combining two different types of joints, the cover member 30 is firmly joined to the trim main body forming scheduled portion 20 'and is integrally laminated.
[0050]
The trim main body forming portion 20 ′ from which the molten material has been extruded releases gas from its surface until it is solidified, and when a foaming agent is contained, the gas becomes particularly prominent and releases gas. Since the gas can pass through the cover member 30 because it can be ventilated, gas accumulation does not occur on the back surface of the cover member 30. This also leads to not lowering the joining strength of the cover member 30 to the trim main body formation scheduled portion 20 '.
[0051]
At the time of this joining, the fibers on the back surface of the cover member 30 that are in direct contact with the trim body forming portion 20 ′ on the back surface are heated by the heat of the trim body forming portion 20 ′ at the time of contact and are melted. The air gaps in the fibers constituting the member 30 act as a heat insulating layer. As a result, the front side fibers of the cover member 30 are not heated as much as the back side fibers, so that the entire cover member 30 is not melted or its surface is not deteriorated. As shown in FIG. 6, while passing through the pair of patterning rollers 52a and 52b, the cover member 30 pulled out from the cover member uncoiler 51 heats the heat from the roller 52a heated to the heat deformation temperature of the fiber or higher. As a result, the cover member 30 is softened, and the whole is slightly compressed, and the surface side of the cover member 30 is provided with a number of patterning projections 52a 'provided on the outer peripheral surface of one of the patterning rollers 52a. It is compressed more than the part and plastically deforms, and a number of thin portions 30a are formed as shown in FIGS.
[0052]
As shown in FIG. 8, the cover member 30 is continuously extruded from the extrusion port of the extrusion die in a state where the cover member 30 is integrally joined to the surface side of the trim body forming scheduled portion 20 ′. Both end edges in the width direction of the cover member 30 are bent inward by the member bending device 43 and welded in the same manner as described above, and the vehicle outer side piece 21a 'and the extension lip formation portion of the trim body formation planned portion 20' are formed. Each edge of 22 ′ is covered with an end in the width direction of the cover member 30. Then, the side pieces 21a 'and 21b' of the mounting base 21 'in the expanded state of the trim main body forming portion 20' are bent stepwise by the mounting base bending device 44 to form a substantially U-shaped cross section. You. Finally, the long material T ′ of the sunroof trim T is gradually cooled while passing through the cooling device 45, cut into a predetermined length after passing through the take-off device 46, and taken out of the manufacturing device.
[0053]
The long material T ′ of the sunroof trim T thus formed is cut into a length corresponding to the circumferential length of the flange overlapping portion 7 of the roof opening 1 to be a trim intermediate product T ″. Next, by joining both ends of the trim intermediate product T ″ in the longitudinal direction so as to form a ring shape as a whole, an annular sunroof trim T as a finished product is obtained.
[0054]
In the above manufacturing method, the cover member 30 is supplied to the inside of the extrusion die 41. Immediately after the trim main body formation scheduled portion 20 'is extruded from the extrusion die 41, the cover member 30 is provided on the surface thereof. Can also be joined together. In this case, as shown by a two-dot chain line in FIG. 7, a cover member uncoiler 51 ′ is provided, and a cover member joining roller 53 ′ and a cover member bending device 43 ′ are arranged downstream of the extrusion die 41. In addition, in order to stabilize the joining of the cover member 30, a support table (not shown) that supports the trim main body forming scheduled portion 20 'is installed at the joining position where the cover member joining roller 53' is arranged. . In this case, when manufacturing the long material T ′ of the sunroof trim T, it is possible to join even a cover member made of a fiber whose melting temperature is relatively lower than the molding temperature of the trim main body forming scheduled portion 20 ′. Since the cover member joining roller 53 does not need to be disposed inside the die 41, the structure of the extrusion die 41 is simplified.
[0055]
Further, in the above-described embodiment, the method of bending the side pieces 21a 'and 21b' of the mounting base 21 'in the expanded state of the trim main body formation planned portion 20' before cooling is described. It can be performed after cooling. When the trim main body forming portion 20 'is relatively thick, it is preferable to perform bending after cooling.
[0056]
Next, the long material T ′ of the sunroof trim T formed as described above is cut into a predetermined length to obtain a trim intermediate product T ″, and as shown in FIG. When the product T ″ is bent in an annular shape and the cut ends in the longitudinal direction are abutted to each other and both end surfaces are integrally joined by heat fusion (the end joint portion is indicated by “J”), the overall shape becomes annular. The product, the sunroof trim T, is formed.
[0057]
The fibers constituting the woven or non-woven fabric of the cover member 30 of the sunroof trim T are slightly movable or deformable in both the thickness direction and the surface direction, that is, in the thickness direction and the surface direction. In the case where the trim intermediate product T '' is bent to form an annular sunroof trim T in both directions, a tensile stress and a compressive stress are generated outside and inside the curved portion, respectively. . Since the fibers of the cover member 30 slightly move or deform in the thickness direction or the surface direction of the cover member 30, when the trim intermediate product T '' is bent, no cracks or wrinkles are generated on the surface, and Bending work becomes easy. On the other hand, when the cover member 30 does not expand or contract, cracks and wrinkles are apt to be generated on the surface of the trim intermediate product during bending work, and a portion in which a stress exceeding the limit is built in during use. In such a case, partial peeling of the cover member from the trim main body is likely to occur.
[0058]
Finally, a method of joining both ends of the trim intermediate product T ″ in the longitudinal direction will be described with reference to FIGS. As shown in FIG. 10, the trim intermediate product T ″ is held such that both ends in the longitudinal direction of the elongated trim intermediate product T ″ project from the end face 61 a of the holding mold 61 by about 1 mm. (The amount of protrusion is indicated by “Ta ″”). In this state, as shown in FIG. 11, both end surfaces Tb '' of the trim intermediate product T '' are heated in advance to a temperature equal to or higher than the melting temperature of the trim intermediate product T '' which is disposed between both end surfaces Tb ''. Both ends (including the cover member 30) of the trim intermediate product T ″ are heated and melted by contacting both surfaces of the hot plate 62. Next, as shown in FIG. 12, the hot plate 62 is retracted from between the two end surfaces Tb '' of the trim intermediate product T ''. Then, as shown in FIG. 13, a pair of holding dies 61 disposed immediately opposite to each other are abutted, and both ends of the trim intermediate product T ″ are welded and joined. Thereafter, by removing the mold, the trim intermediate product T ″ is formed in an annular shape, and the product, the sunroof trim T, is obtained. In the above joining step, the ends of the cover member 30 are also welded to each other, so that peeling of the cover member 30 from the end can be prevented, and the fibers can be prevented from fraying.
[0059]
In the above-described embodiment, the configuration and the manufacturing method have been described by taking the "sunroof trim" as an example of the vehicle decorative edge member, but the embodiment of the present invention is not limited to the "sunroof trim", It can be applied to other edge members used for the purpose. Examples of other edge members include a weatherstrip disposed between an opening / closing door on the side of the vehicle and a vehicle body panel, a weatherstrip (trunk seal) used for an opening / closing trunk portion, and the like.
[0060]
【The invention's effect】
According to the present invention, a part of the fibers on the back surface side of the cover member is firmly bonded and fixed to the decorative edge member main body by heat fusion, and the fibers on the front and back constituting the cover member are woven and integrated, or integrated. The decorative rim member main body is firmly fixed to the decorative rim member main body, so that the entire cover member having a color or pattern different from that of the decorative rim member main body is obtained. Since a predetermined pattern can be formed on the surface of the nonwoven fabric before fusion, a decorative edge member having a desired pattern can be easily obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle mainly showing a sunroof R to which a sunroof trim T according to the present invention is attached.
FIG. 2 is an enlarged cross-sectional view taken along line XX of FIG.
FIG. 3 is a partially enlarged perspective view of a sunroof trim T before mounting.
FIG. 4 is a partial front view of the cover member 30.
FIG. 5 is a sectional view taken along line YY of FIG. 4;
FIG. 6 is an enlarged schematic cross-sectional view of a joint between the trim main body 20 and the cover member 30 of the sunroof trim T.
FIG. 7 is a schematic view of an apparatus for manufacturing a long material T ′ for sunroof trim according to the present invention.
FIG. 8 is an enlarged sectional view taken along line ZZ of FIG. 7;
FIG. 9 is a plan view of a sunroof trim T.
FIG. 10 is a view showing a state in which the trim intermediate product T ″ is held such that both ends in the longitudinal direction of the trim intermediate product T ″ project from the end face 61a of the holding mold 61 by about 1 mm.
FIG. 11 is a view showing a state where both ends of a trim intermediate product T ″ are heated and melted by being applied to a hot plate;
FIG. 12 is a view showing a state in which a hot plate 62 is retracted from between a pair of holding dies 61;
FIG. 13 is a view showing a state in which a pair of holding dies 61 are butted.
[Explanation of symbols]
J: Terminal joint of sunroof trim
T: Sunroof trim (decorative edge member)
T '': Trim intermediate product
20: Trim body (decorative rim member body)
30: cover member
30a: Thin portion of cover member
31: Fiber resin forming the cover member
32: gap between fiber resins
41: Extrusion die

Claims

A long decorative edge member body extruded from a thermoplastic elastomer material, and the decorative edge member body is made separately from the decorative edge member body, and its own surface is different from the surface of the decorative edge member body in a pattern and / or A decorative edge member for a vehicle, comprising a cloth-like cover member exhibiting a color, wherein the cover member is joined to at least a part of the surface of the decorative edge member main body and laminated and integrated,
The cover member is made of a woven fabric in which fibers made of a material compatible with the elastomer material of the decorative edge member main body are regularly woven, or a nonwoven fabric in which the fibers are irregularly entangled,
The woven or non-woven fabric is oriented in an irregular direction between the internal fibers at a weave or entanglement of the fibers, and is breathable with an infinite number of irregularly shaped gaps,
The decorative edge member for a vehicle, wherein the cover member has a back surface side fiber bonded to the elastomer material of the decorative edge member body by heat fusion at a joint portion where the cover member is integrated.

A part of the elastomer material forming the decorative rim member body enters into an infinite number of gaps of an irregular shape in a woven or non-woven fabric of the cover member, and solidifies into the cover by an anchoring action. The decorative edge member for a vehicle according to claim 1, wherein the member is mechanically fixed also on a surface of the decorative edge member main body.

The decorative edge member for a vehicle according to claim 1 or 2, wherein the fibers of the cover member are slightly movable and / or deformable in a thickness direction of the cover member.

The decorative edge member for a vehicle according to any one of claims 1 to 3, wherein the fibers constituting the cover member are slightly movable and / or deformable in a plane direction thereof.

In the cover member, a plurality of thin portions that are partially compressed in the thickness direction and become thinner than the original thickness are formed regularly or irregularly, and the thin portion and other portions thicker than the thin portion are formed. The decorative edge member for a vehicle according to any one of claims 1 to 4, wherein the decorative edge member can be visually recognized as a pattern having a different color tone.

The decorative edge member for a vehicle according to any one of claims 1 to 5, wherein the cover member is formed of a fiber treated so as to have a different color from the surface of the decorative edge member main body.

The decorative edge member for a vehicle according to any one of claims 1 to 6, wherein the fiber forming the cover member is made of a material having a higher hardness than a material of the decorative edge member main body.

The decorative edge member for a vehicle according to any one of claims 1 to 7, wherein a fiber forming the cover member has a lower coefficient of friction than a material of a decorative edge member main body.

The vehicle decorative edge member according to any one of claims 1 to 8, wherein the decorative edge member main body is formed of an olefin-based thermoplastic elastomer, and the cover member is formed of an olefin-based resin fiber. .

In the decorative edge member, the cut longitudinal ends are joined by fusion to form an annular shape, and at the joint of the two ends, the decorative edge member bodies and the cover members are fused in abutting state. The decorative edge member for a vehicle according to any one of claims 1 to 9, wherein:

A long decorative edge member body extruded from a thermoplastic elastomer material, and the decorative edge member body is made separately from the decorative edge member body, and its own surface is different from the surface of the decorative edge member body in a pattern and / or A fabric-shaped cover member exhibiting a color, wherein the cover member is bonded to at least a part of the surface of the decorative edge member body, and is a method of manufacturing a decorative edge member for a vehicle, which is laminated and integrated,
A material having compatibility with the elastomer material of the decorative edge member main body in the middle of molding the decorative edge member main body having a predetermined cross-sectional shape by extruding the heated and melted thermoplastic elastomer material from the orifice of the extrusion mold. Consisting of a woven fabric in which fibers are regularly woven, or a non-woven fabric in which fibers are entangled irregularly. The cover member is continuously supplied, and the cover is formed on at least a part of the surface of the decorative edge member main body at a temperature at which the elastomer material forming the decorative edge member main body and the material of the cover member can be fused. A method for manufacturing a decorative edge member for a vehicle, wherein the members are brought into contact with each other, and the fibers on the back surface side of the cover member are thermally fused to the surface of the decorative edge member main body to be laminated and integrated.

The cover member is fed into the extrusion molding die, and after or after the decorative edge member main body is formed in the molding die, the cover member is pressed to the decorative edge member main body and joined by fusion. The method for manufacturing a decorative edge member for a vehicle according to claim 11, wherein:

When the decorative rim member main body was extruded from the extrusion mold and the surface of the decorative rim member main body was still maintaining a temperature at which fusion was possible, the cover member was supplied to the decorative rim member main body and the shape was maintained. The method for manufacturing a decorative edge member for a vehicle according to claim 11, wherein the cover member is pressure-bonded to the decorative edge member main body in the state and is integrally joined by fusion.

At the time of joining the cover member to the decorative edge member main body, they are brought into contact with each other in a crimped state, and a part of the elastomer material forming the decorative edge member main body is caused to flow, and a part thereof is eaten into the gap between the fibers of the cover member. 14. The method of manufacturing a decorative edge member for a vehicle according to claim 11, wherein the decorative edge member is fixed by an anchoring action.