JP2004195655A

JP2004195655A - Method for manufacturing long material comprising extruded member of polymer material

Info

Publication number: JP2004195655A
Application number: JP2002363205A
Authority: JP
Inventors: Noriyuki Miyata; 典幸宮田
Original assignee: Tokai Kogyo Co Ltd
Current assignee: Tokai Kogyo Co Ltd
Priority date: 2002-12-16
Filing date: 2002-12-16
Publication date: 2004-07-15
Anticipated expiration: 2022-12-16
Also published as: JP3737476B2

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a long material by mutually bonding terminals of extruded members having different cross-sectional shapes by a simple method without causing difference in level in a bonded part. <P>SOLUTION: In a method for manufacturing a window molding M<SB>1</SB>by connecting the terminal of a first long window molding part M<SB>11</SB>having a definite cross-sectional shape extrusion-molded from a polymer material to the terminal of a second long window molding part M<SB>12</SB>having a definite cross-sectional shape, which is different from that of the first window molding part M<SB>11</SB>, extrusion-molded from the polymer material, the terminal of either one of the first and second window molding parts M<SB>11</SB>and M<SB>12</SB>is deformed so that the cross-sectional shape thereof coincides with that of the other one of them or terminals of the first and second window molding parts M<SB>11</SB>and M<SB>12</SB>are deformed so as to coincide with each other in their cross-sectional shapes and the terminals of the both window molding parts M<SB>11</SB>and M<SB>12</SB>are abutted to integrally bond the terminals of both window molding parts M<SB>11</SB>and M<SB>12</SB>mutually at the abutted terminal parts. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、ポリマー材料の押出部材からなる長尺材の製造方法に関し、更に詳しくは、横断面形状が互いに異なる複数の押出部材の端末を段差無く滑らかに接合して一体化した長尺材の製造方法に関するものである。このような長尺材としては、車両のウインドウモール、特にフロントウインドウモールを挙げることができる。
【０００２】
【従来の技術】
上記した長尺材の製造方法としては、横断面形状が異なる複数のポリマー押出部材を準備して、接合すべき２本の押出部材の端末同士を間隔を保って射出成形型の中にＬ字形に交差するように配置して、射出成形型の前記間隔に相当するキャビティに液状のポリマー材料を射出するインサート射出成形により、前記２本の押出部材の端末間に接続部材を形成すると共に、接続部材を介して両押出部材の端末を一体的に接合する方法が知られている（例えば、特許文献１）。
【０００３】
【特許文献１】
特開昭６３−８０２２号公報
【０００４】
このインサート射出成形によれば、異なる横断面形状の押出部材の端末を接続する別途の接続部材を射出成形すると共に、前記各押出部材を接続部材で接合して一体化することはできるが、接合部分に二本の接続線が必然的に生ずる。このため、長尺材が目視され装飾性を要求されるものでは必ずしも満足できる製造方法ではなかった。
【０００５】
【発明が解決しようとする課題】
本発明の課題は、接合部分に段差が生ぜず、簡単な方法で横断面形状の異なる押出部材の端末同士を接合して長尺材を得ることである。
【０００６】
【課題を解決するための手段】
上記課題を解決するための請求項１の発明は、ポリマー材料から押出成形された第１の一定横断面形状を有する長尺な第１押出部材の端末と、ポリマー材料から押出成形され前記第１押出部材とは異なる第２の一定横断面形状を有する長尺な第２押出部材との端末が接続された長尺材の製造方法であって、
第１及び第２の各押出部材の少なくともいずれか一方の押出部材の端末の横断面形状が他方の押出部材の端末の横断面形状と一致するように変形させ、又は第１及び第２の各押出部材のいずれの端末も共に横断面形状が一致するように変形させた状態で端末同士を突き合わせて、端末の突き合わせ部分で両押出部材の端末同士を接合して一体化することを特徴としている。
【０００７】
請求項１の発明によれば、横断面形状が一定であって、その形状が相互に異なる２本の押出部材を簡単に接合一体化して１本の長尺材に簡単に成形できる。しかも、接合一体化された２本の押出部材の接合部は無段差状態となっているために、長尺材の装飾性を低下させない。
【０００８】
請求項２の発明は、請求項１の発明において、第１及び第２の各押出部材は、いずれも同一の横断面形状を有する共通断面部と、この共通断面部と一体化され、第１及び第２の各押出部材とで異なる横断面形状の異断面部とを有し、第１及び第２の各押出部材の少なくともいずれか一方の押出部材の異断面部の端末の横断面形状が他方の押出部材の異断面部の端末の横断面形状と一致するように変形させ、又は第１及び第２の各押出部材の異断面部のいずれの端末も横断面形状が互いに同一で一致するように変形させて、共通断面部と異断面部を共に接合することを特徴としている。
【０００９】
請求項２の発明によれば、請求項１の発明の上記作用効果に加えて、異断面部と共通断面部が共に接合して一体化されるので第１押出部材と第２押出部材の接合部の接合強度が高く保てる。また、接合作業において、各押出部材の共通断面部は同一断面形状なので、異断面部だけを変形させればよく、更に各押出部材の突き合わせの位置決め作業が簡単にできて、その結果２本の押出部材の接合部の形状が正確となって製品である長尺材の装飾性が低下しない。
【００１０】
請求項３の発明は、請求項２の発明において、第１及び第２の各押出部材の異断面部の横断面形状は、一方の押出部材の異断面部の横断面形状の外形が他方の押出部材の異断面部の横断面形状の外形よりも大きく形成されていて、横断面形状が大きく形成された異断面部の端末の横断面形状が、小さく形成された異断面部の端末の横断面形状と同一になるように外側から圧縮して縮小された状態で接合されることを特徴としている。
【００１１】
請求項３の発明によれば、請求項２の発明の上記作用効果に加えて、異断面部の外形が大きく形成された一方の押出部材の異断面部の外側から力を加えることにより大きく形成された異断面部の横断面形状を、他方の押出部材の小さく形成された異断面部の横断面形状の外形に比較的容易に小さく変形させることができる。
【００１２】
請求項４の発明は、請求項３の発明において、第１及び第２の各押出部材の異断面部は共に中実に形成され、横断面形状の外形が大きく形成された側の押出部材の中実断面の端末の変形部分において内部の材料を長手方向の外側に流動させ塑性変形された状態で接合することを特徴としている。
【００１３】
請求項４の発明によれば、請求項３の発明の作用効果に加えて、形状縮小の際に余剰の材料を長手方向外側に流動させるので、所望の正確な形状に無理なく変形させられる。
【００１４】
請求項５の発明は、請求項３の発明において、横断面形状の外形が大きく形成された側の押出部材の異断面部は中空に形成され、この中空断面の端末の変形部分において中空形状を縮小させて変形させた状態で接合することを特徴としている。
【００１５】
請求項５の発明によれば、請求項３の発明の作用効果に加えて、中空構造の異断面部に外力を加えると容易に変形させられるので、第１及び第２の各押出部材の端末形状を容易に一致させられると共に、異断面部の形状が大きく異なる場合でも対応可能である。
【００１６】
請求項６の発明は、請求項２の発明において、第１及び第２の各押出部材の横断面形状は、一方の押出部材の異断面部の横断面形状の外形が他方の押出部材の横断面形状の外形よりも小さく形成されていて、横断面形状の外形が小さく形成された異断面部の端末部の横断面形状を、端末において外形が大きく形成された異断面部の横断面形状と同一となるように拡大させて接合させることを特徴としている。
【００１７】
請求項６の発明によれば、請求項２の発明の作用効果に加えて、横断面形状の外形が小さく形成された側の押出部材の横断面形状の外形の拡大変形によって、２本の押出部材を無段差状態で接合可能となる。
【００１８】
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、第１及び第２の各押出部材はいずれも熱可塑性ポリマー材料から形成され、少なくとも一方の押出部材の端末部の変形部分が軟化温度以上の温度に加熱された状態で前記変形部分を変形させ、接合後の変形部分が塑性変形されていることを特徴としている。
【００１９】
請求項７の発明によれば、請求項１ないし６のいずれかの発明の作用効果に加えて、少なくとも一方の押出部材の端末部の変形部分を加熱させて接合しているために、前記変形部分が容易に変形される。また、変形部分が元の形状に戻ろうとする復元応力の残存を防止できるので安定した接合が得られる。
【００２０】
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、第１及び第２の各押出部材は、互いに相溶性を有する材料から形成され、各押出部材の端末が前記材料の融点以上の温度に加熱されて溶融した状態で突き合わされて溶着され接合されていることを特徴としている。
【００２１】
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作用効果に加えて、第１及び第２の各押出部材は、接合手段を別途必要とせずに、接合すべき各押出部材の材料の選択のみによって、しかも大きな接合強度で接合可能となる。
【００２２】
請求項９の発明は、請求項１ないし７のいずれかの発明において、第１及び第２の各押出部材は、接着により接合されていることを特徴としている。
【００２３】
請求項９の発明によれば、請求項１ないし７のいずれかの発明の作用効果に加えて、接合手段が接着であるために、第１及び第２の各押出部材は、各々の要求又は仕様に合わせた最適な材料で形成できる。
【００２４】
請求項１０の発明は、請求項２ないし９のいずれかの発明において、長尺材は、車両の窓板の周縁に沿って配置されるウインドウモールであって、前記ウインドウモールを構成する第１及び第２の各押出部材の共通断面部は、前記窓板の周縁に係止する脚部であり、第１押出部材の異断面部は、窓板の側部に配置されて窓板の表面から車外側に突出して堰を形成する大きな外形の異断面をなし、第２押出部材の異断面部は、窓板の上部に配置されて窓板の表面とフラッシュ面を形成する小さな外形の異断面部をなし、第１及び第２の両押出部材の端末同士が窓板の側部と上部の間の角部又はその近傍位置となるように接合されて車両のウインドウモールをなすことを特徴としている。
【００２５】
請求項１０の発明によれば、請求項２ないし９のいずれかの発明の作用効果に加えて、長尺材が車両に取付けられたとき、窓板の側部で水滴が横切って車両の側面（側部ドア側）に流れるのを防止し、窓板の上部で窓板とフラッシュな面を形成するウインドウモールを簡単に製造できる。
【００２６】
【発明の実施の形態】
以下、実施形態を挙げて、本発明について更に詳細に説明する。図１は、本発明の第１実施形態の方法により製造されたフロントウインドウモール（以下、単に「ウインドウモール」と略す）Ｍ₁が取付けられた自動車を斜前方から見た斜視図であり、図２及び図３は、それぞれ図１のＸ₁−Ｘ₁線及びＸ₂−Ｘ₂線の各拡大断面図であり、図４及び図５は、それぞれウインドウモールＭ₁の接合部分の斜視図、及び正面図である。最初に、ウインドウモールＭ₁の構成、及びその取付構造について説明し、その後に、本発明に係るウインドウモールＭ₁の製造方法について説明する。
【００２７】
このウインドウモールＭ₁は、自動車の窓板１の周縁部に取付けられて、この窓板１を自動車の前面の窓開口２に取付ける際に、窓板１の周縁と窓開口２を形成するボディパネル３との間に形成される隙間４を閉塞して、この部分を装飾するための部材である。横断面形状の異なる長尺状をした第１及び第２の２本のウインドウモール部Ｍ₁₁，Ｍ₁₂は、それぞれ個別に押出成形され、押出成形後において、その端末が無段差状態で接合されて１本状のウインドウモールＭ₁となる。本使用形態では、窓板１の上縁部の右端を除く全部分と同じく左側縁部には第１ウインドウモール部Ｍ₁₁が取付けられ、窓板の右側縁部には第２ウインドウモール部Ｍ₁₂が取付けられる。図１において、第１及び第２の２本のウインドウモール部Ｍ₁₁，Ｍ₁₂の端末同士の接合部は「Ｓ₁」で示されている。
【００２８】
図２及び図３は、それぞれ図１のＸ₁−Ｘ₁線及びＸ₂−Ｘ₂線の各拡大断面図である。第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂は図２及び図３に詳細に示されているように、窓板１の端面１ａの外側に配置される脚部１１と、この脚部１１の上端部に一体に形成され、窓板１の外面の周縁部に弾接してこの部分を装飾する装飾部１２（１２')と、前記脚部１１の下端部の内側に一体に形成され前記装飾部１２（１２')と共働して第１ウインドウモール部Ｍ₁₁を窓板１の端縁部に挟持状態で取付けるための挟持部１３と、前記脚部１１の下端部の外側に一体に形成されて前記ボディパネル３の傾斜面部３ａに弾接して前記隙間４を閉塞するためのリップ部１４とで構成される。第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂は、装飾部１２（１２')の横断面形状が異なり、他の部分の形状は全て共通していて、装飾部１２（１２')は、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の「異断面部」となっており、残りの部分は「共通断面部」となっている。第１のウインドウモール部Ｍ₁₁の装飾部１２は、窓板１の上縁部に取付けられた際に窓板１の表面とフラッシュ面を形成するように、取付状態において窓板１の中心側に向かうにつれて徐々に肉厚が小さくなるように形成されているのに対して、第２のウインドウモール部Ｍ₁₂の装飾部１２’は、その全幅においてほぼ同一の肉厚となっていて、窓板１の運転者側である右側縁の表面から車外側に突出して、雨水が側方に飛散するのを防止する堰を形成するようになっている。リップ部１４の基端部は変形を容易にするために中空構造となっている。図２及び図３において、１８は、脚部１１の窓板１と対向する側に取付けられて脚部１１を窓板１に固定するための接着テープ材を示し、１９は、長尺状の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の長手方向の伸縮を防止するために脚部１１に埋設された保形線材を示す。なお、図２及び図３における２点鎖線は、装飾部１２（１２')及びリップ部１４の変形前の状態（フリー状態）を示す。
【００２９】
第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の成形材料としては、合成樹脂材料，熱可塑性エラストマー材料，ゴム材料等のポリマー材料が挙げられる。合成樹脂材料は、汎用樹脂であるエンジニアリング樹脂か否かを問わないが熱溶着で接合するときには相溶性を有する熱可塑性合成樹脂が好ましい。熱可塑性エラストマー材料としては、種類は問わないが後述の熱溶着するときに第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂が互いに相溶性を有する熱可塑性エラストマー材料で形成することが好ましい。また、軽量化、接合性の観点からはオレフィン系熱可塑性エラストマー材料が特に好ましい。ゴム材料としては、ＥＰＤＭ，ＣＲ，ＣＰＭ等が適用できるが広く使用されているＥＰＤＭが押出成形性、品質、コスト、入手性の観点から望ましい。
【００３０】
本実施形態では、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂は、いずれも塩ビを主体として押出し成形で形成され、リップ部１４と装飾部１２（１２')の先端部下面の窓板１に弾接する部分は、ＪＩＳＫ７２１５によるデュロメータ硬度がＨＤＡ７０程度の塩素化エチレンコポリマーで形成され、残りの部分〔脚部１１，装飾部１２（１２')，挟持部１３〕はいずれも前記リップ部１４の材料よりも硬度の高いＪＩＳＫ７２１５によるデュロメータ硬度がＨＤＡ９０程度の硬質塩ビで形成されている。装飾部１２（１２')の表層部は他の部分よりも硬度が低く、かつ耐候性を有するＪＩＳＫ７２１５によるデュロメータ硬度がＨＤＡ６５程度の軟質塩ビで装飾部１２（１２')と共押出成形で溶着により一体的に形成されている。
【００３１】
次に、一対の接合型Ｆ₁,Ｆ₂を使用して、個別に押出成形された第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末同士を融着により接合して長尺状の１本のウインドウモールＭ₁を製造する方法について説明する。図６は、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を保持した一対の接合型Ｆ₁,Ｆ₂を型密着面２１の側から見た斜視図であり、図７は、同様の状態の平面図であり、図８は、図７のＹ−Ｙ線断面図であり、図９及び図１０は、それぞれ図７のＺ₁−Ｚ₁線及びＺ₂−Ｚ₂線断面図であり、図１１は、一対の接合型Ｆ₁,Ｆ₂の間に熱板３１を配置して、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を熱板３１に当接させた状態の平面図であり、図１２は、熱板３１を取り外して第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を突き合わせた状態の平面図である。なお、図４は、ウインドウモールＭ₁の接合部の部分斜視図で、図５は、同部の正面図である。
【００３２】
一対の接合型Ｆ₁,Ｆ₂は、融着接合すべき２本の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末の先端を型密着面２１から僅かに突出させて突き合わせ状態で保持するための型であって、いずれも上型２２（２２')、下型２３及び中子型２４との３つの型部で構成されている。３つの型部を一体に組み付けて形成される閉塞空間が各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末部を収容した状態でその外側から押さえて保持するためのモール端末収容空間２５（２５')〔図９及び図１０参照〕となっている。モール端末収容空間２５（２５')は、横断面視で外周を閉塞されていて、収容されるウインドウモール部Ｍ₁₁，Ｍ₁₂の長手方向に沿って貫通して形成されている。３つの型部を一体に組み付けた状態で、前記型密着面２１の中央部には方形状の凹部２６が形成され、この凹部２６の底面から前記モール端末収容空間２５（２５')に至る部分に傾斜突出部２７が形成されている。図８に示されているように、傾斜突出部２７の先端は鋭角状の刃部２７ａとなっていて、各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末を溶着接合する際に、塑性変形によりモール端末収容空間２５（２５')の外側にはみ出した材料余剰部で形成されたバリ４１（図１２参照）を切断除去し得る構成になっている。前記刃部２７ａの先端は、各接合型Ｆ₁,Ｆ₂の前端面である型密着面２１と同一又は極く僅かに後退した位置に設けられている。型密着面２１及び傾斜突出部２７は、各接合型Ｆ₁,Ｆ₂を構成する３つの型部である上型２２（２２')、下型２３及び中子型２４を組み付けた状態で合成して形成される。
【００３３】
外形が大きな側の異断面部である装飾部１２’を有する第２ウインドウモール部Ｍ₁₂を保持して接合する接合型Ｆ₂の上型２２’の内周面（モール端末収容空間２５' を形成する部分）には、図６及び図８に示されるように前記装飾部１２’の表面側を押し潰して第１ウインドウモール部Ｍ₁₁の装飾部１２と同一横断面形状に塑性変形させるための押潰し突部２８が突出して形成されている。この押潰し突部２８の存在により接合型Ｆ₂のモール端末収容空間２５’の横断面形状は、型密着面2 １の側の開口から前記押潰し突部２８の奥側の形成端部に至る部分において徐々に形状が連続して変化されていて、残りの大部分は第２ウインドウモール部Ｍ₁₂の横断面形状と同一となっている。接合型Ｆ₂のモール端末収容空間２５’の型密着面２１の側の開口形状は、第１ウインドウモール部Ｍ₁₁の横断面形状と一致している。これに対して、接合型Ｆ₁のモール端末収容空間２５の横断面形状は、その全域に亘って第１ウインドウモール部Ｍ₁₁の横断面形状と同一となっている。
【００３４】
上記した一対の接合型Ｆ₁,Ｆ₂を使用して、それぞれ個別に押出成形された第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を融着により接合して長尺状の１本のウインドウモールＭ₁を製造する方法について順に説明する。まず、図６ないし図８に示されるように、各接合型Ｆ₁,Ｆ₂を構成する上型２２（２２')，下型２３及び中子型２４を互いに分離させておいて、中子型２４に第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂を嵌め合わせて、これらの間にそれぞれ各モール部Ｍ₁₁，Ｍ₁₂の各端末を配置した状態で、上記した上型２２（２２')，下型２３及び中子型２４を閉じると、これらにより形成されるモール端末収容空間２５（２５')にそれぞれ第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末が収容保持される。この状態で、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末は、各接合型Ｆ₁,Ｆ₂の型密着面２１よりも僅かに突出している（図７において、その突出長が「Ｔ」で示されている）。第１ウインドウモール部Ｍ₁₁の前記突出長は、全周に亘ってほぼ一定しているが、第２ウインドウモール部Ｍ₁₂の前記突出長は、押潰し突部２８の部分において装飾部１２’が押潰し突部２８により表面側から裏面側に向けて押し潰されることにより長手方向の外側に塑性変形されるため、この部分の突出長のみが他の部分の突出長Ｔよりも大きく出っ張っている。なお、この場合変形される側の第２ウインドウモール部Ｍ₁₂の端末を予め軟化温度以上の温度に加熱して軟化させておくと、変形される際に材料の流動が起こり変形が容易かつ正確な形状に行え、更に接合後においてこの部分の残留内部応力が少なくなるので好ましい。
【００３５】
次に、図１１に示されるように、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を収容保持している各接合型Ｆ₁,Ｆ₂を相対向させて、その間に、各モール部Ｍ₁₁，Ｍ₁₂の材料の溶融温度以上に加熱した熱板３１を配置して接触させ所定時間だけこの状態を維持すると、各接合型Ｆ₁,Ｆ₂の型密着面２１から突出した第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末突出部Ｍ₁₁a,Ｍ₁₂a は前記熱板３１に当接しているため溶融状態となる。
【００３６】
その後に、図１２に示されるように、一対の接合型Ｆ₁,Ｆ₂の間から熱板３１を取り外して、直ちに各接合型Ｆ₁,Ｆ₂の型密着面２１を密着させて、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末突出部Ｍ₁₁a,Ｍ₁₂a を互いに突き合わせて押し付け状態にして所定時間だけこの状態を維持させると、溶融状態となっている第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末突出部Ｍ₁₁a,Ｍ₁₂a が互いに融着し合って、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末同士が接合される。特に、本実施形態では、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各対応部は、互いに同一材料で成形されていて相溶性を有しているために前記接合が確実となる。
【００３７】
第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末の接合部Ｓ₁及びその周辺の温度が下がり冷却するまで一対の接合型Ｆ₁,Ｆ₂をセット状態のまま放置し、冷却後に第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末が接合されたウインドウモールＭ₁を各接合型Ｆ₁,Ｆ₂から取り出す。なお、前記の接合の際に材料の余剰部分がバリ４１となって接合部Ｓ₁の外周に発生するが、このバリ４１は以下のようにして切除される。両型の押付け時に、接合型Ｆ₁,Ｆ₂の傾斜突出部２７の刃部２７ａ, ２７ａの先端間で挟まれることにより各接合型Ｆ₁,Ｆ₂のモール端末収容空間２５（２５')から外部にはみ出た前記材料余剰部が切断されるため後工程における切除が不要となる。
【００３８】
上記した接合方法により第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の端末を接合して得られたウインドウモールＭ₁は、図４及び図５に示されるように、外形の大きな装飾部１２’を有する第２ウインドウモール部Ｍ₁₂の端末の直前の部分において裏面を同一面に保持した状態で全体肉厚が徐々に小さくなって、接合部Ｓ₁においては第１ウインドウモール部Ｍ₁₁の装飾部１２の横断面形状と同一となって一体に接合している。このため、第２ウインドウモール部Ｍ₁₂の接合部Ｓ₁の直前の部分では、その装飾部１２’は、その表面側の先端にゆくに従って肉厚の変化の割合が大きくなって接合わん曲面１５となり、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂は無段差状態で接合されている。このため、ウインドウモールＭ₁は、横断面形状の異なる装飾部１２，１２’を接合しているにもかかわらず、その接合部Ｓ₁の装飾性は低下しない。
【００３９】
ウインドウモールＭ₁の第２ウインドウモール部Ｍ₁₂は、窓板１の運転者側である右側縁に取付けられて、前記装飾部１２の堰部は、窓板１上の雨水が運転者側の側方に移動させられた場合に、これを受け入れて窓板１に沿った斜下方に誘導する雨水誘導部として機能する。よって、窓板１上の雨水が運転者側の側方に飛散されて、運転者の視界を狭くするのを有効に防止できる利点がある。
【００４０】
次に、本発明の第２ないし第４の各実施形態について説明する。第１実施形態の製造方法は、接合すべき第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の異断面部（装飾部１２，１２')がいずれも中実構造のものであるが、第２ないし第４の各実施形態の製造方法は、接続すべきウインドウモール部の少なくとも一方が中空構造（或いは開口構造）になっている点で相違している。なお、第２ないし第４の各実施形態において、既述の第１実施形態と同一部分には同一符号を付し、重複説明を避けて、各実施形態独自の部分についてのみ説明する。
【００４１】
図１３は、本発明の第２実施形態の方法により製造されたウインドウモールＭ₂の接合部Ｓ₂を主体に示す部分斜視図であり、図１４は、ウインドウモールＭ₂を構成する外形の大きな側の第２ウインドウモール部Ｍ₂₂の接合部Ｓ₂の部分の接合前後の各断面図である。第２実施形態においては、製造すべきウインドウモールＭ₂を構成する外形の小さな側の第１ウインドウモール部Ｍ₂₁の横断面形状は、第１実施形態のウインドウモールＭ₁を構成する外形の小さな側の第１ウインドウモール部Ｍ₁₁と同一であって、異断面部である装飾部１２は中実構造であって、接合後においても変形していない。これに対して、ウインドウモールＭ₂を構成する外形の大きな側の第２ウインドウモール部Ｍ₂₂の横断面形状は、異断面部を構成する装飾部１２''が第１実施形態の第２ウインドウモール部Ｍ₁₂と異なっている。即ち、第２ウインドウモール部Ｍ₂₂を構成する装飾部１２''は、窓板１にウインドウモールＭ₂が取付けられた状態で窓板１の中心部を向く側に開口した開口部１２ａ''が形成され、該開口部１２ａ''は入口側から奥側に向けて徐々に狭くなって装飾部１２''の幅方向の略中央部で消失している。このため、図１４の下方の図から明らかなように、ウインドウモールＭ₂においては、これを構成する第２ウインドウモール部Ｍ₂₂の装飾部１２''は、上側及び下側の各分割片１２b'',１２c'' を備え、第１ウインドウモール部Ｍ₂₁の装飾部１２よりも外形が大きくなっている。
【００４２】
第１実施形態と略同一の一対の接合型（図示せず）を使用して、ウインドウモールＭ₂を構成する第１及び第２の各ウインドウモール部Ｍ₂₁, Ｍ₂₂の端末部を各接合型で保持して、外形の大きな装飾部１２''を有する第２ウインドウモール部Ｍ₂₂を接合型で保持する際に、前記装飾部１２''は、その端末から所定長の部分において下側分割片１２c'' は不動のままで、上側分割片１２b'' を徐々に下側分割片１２c'' の側に向けて押し付けてわん曲させ、図１４の下方の図に示されるように、接合部Ｓ₂において上側及び下側の各分割片１２b'',１２c'' が密着して第１ウインドウモール部Ｍ₂₁の装飾部１２と横断面形状とを合致させている。これにより、図１３に示されるように、第２ウインドウモール部Ｍ₂₂の接合部Ｓ₂に近い部分には接合わん曲面１６が形成されて、第１及び第２の各ウインドウモール部Ｍ₂₁, Ｍ₂₂は、その接合部Ｓ₂において無段差で接合される。
【００４３】
第２実施形態の製法によって作られたウインドウモールＭ₂の使用法は、前述した第１実施形態の場合と同様である。更に、後述する第３及び第４の各実施形態のモールＭ₃,Ｍ₄についても同様である。
【００４４】
図１５は、本発明の第３実施形態の方法により製造されたウインドウモールＭ₃の接合部Ｓ₃を主体に示す部分斜視図であり、図１６は、ウインドウモールＭ₃を構成する外形の小さな側の第１ウインドウモール部Ｍ₃₁の接合部Ｓ₃の部分の接合前後の各断面図である。第３実施形態のウインドウモールＭ₃の製造方法は、第２実施形態のウインドウモールＭ₂の製造方法とは逆に、外形の小さな装飾部１２''' を有する第１ウインドウモール部Ｍ₃₁の外形を大きくして、外形の大きな装飾部１２’を有する第２ウインドウモール部Ｍ₃₂に接合させるものである。
【００４５】
第１ウインドウモール部Ｍ₃₁の装飾部１２''' には、その内側となる部分から幅方向の略中央まで切込み１７が形成されて、装飾部１２''' は、上側及び下側の各分割片１２b''', １２c'''に分割可能になっていて、上側分割片１２b'''を引き上げて分割させると、各分割片１２b''', １２c'''の間に開口部１２a'''が形成される構成になっている。
【００４６】
このため、一対の接合型（図示せず）を使用して、第１及び第２の各ウインドウモール部Ｍ₃₁，Ｍ₃₂の端末を接合させる際に、第１ウインドウモール部Ｍ₃₁の装飾部１２''' の切込み１７から第１ウインドウモール部Ｍ₃₁の長手方向と直交する方向に沿って中子型（図示せず）を挿入して、下側分割片１２c'''を不動にしたままで上側分割片１２b'''を上側に押し上げて接合し、接合後において前記中子型２４を取り除く。これにより、図１５に示されるように、第１ウインドウモール部Ｍ₃₁の装飾部１２''' の表面は、上側分割片１２b'''の部分で徐々に変化して接合わん曲面２０となって、接合部Ｓ₃においては第２ウインドウモール部Ｍ₃₂の装飾部１２’の表面と同一面となって、第１及び第２の各ウインドウモール部Ｍ₃₁, Ｍ₃₂は無段差状態で接合されて、１本の長尺状のウインドウモールＭ₃が得られる。
【００４７】
図１７は、本発明の第４実施形態の方法により製造されたウインドウモールＭ₄の接合部Ｓ₄を主体に示す部分斜視図である。このウインドウモールＭ₄は、前記ウインドウモールＭ₃の第１ウインドウモール部Ｍ₃₁と同一構成の第１ウインドウモール部Ｍ₄₁と、前記ウインドウモールＭ₂の第２ウインドウモール部Ｍ₂₂と同一構成の第２ウインドウモール部Ｍ₄₂とから成り、接合部Ｓ₄において、第１ウインドウモール部Ｍ₄₁の装飾部１２''' の上側分割片１２b ''' を上方に押し上げると共に、第２ウインドウモール部Ｍ₄₂の装飾部１２''の上側分割片１２b ''を下方に押し下げることにより、接合部Ｓ₄の両側の部分において各ウインドウモール部Ｍ₄₁, Ｍ₄₂の端末部を接合部において同一横断面形状となるようにそれぞれ変形させて接合させている。即ち、第１ウインドウモール部Ｍ₄₁は、その異断面部である装飾部１２''' の外形を大きくすると共に、第２ウインドウモール部Ｍ₄₂は、その異断面部である装飾部１２''の外形を小さくして、両装飾部１２''，１２''' の端末において各横断面形状を同一にして接合している。このため、得られるウインドウモールＭ₄の接合わん曲面３０は、接合部Ｓ₄の両側に跨がっていて、接合部Ｓ₄を一層滑らかな無段差状態にできる利点がある。
【００４８】
上記各実施形態の製造方法は、いずれも第１及び第２の各押出部材の端末部のいずれか一方、又は双方を変形させるのに、各押出部材を保持する接合型を型締めすることにより接合と同時に行っているが、本発明においては、各押出部材の端末部の変形は、接合時に変形されておれば足りるので、接合前の別工程により予め変形させておくことも可能である。
【００４９】
第１及び第２の各押出部材の端末の接合手段は、熱溶着であり、接合すべき二つの押出部材を形成している材料に相溶性がある場合には、特に大きな接合力が得られるために最も望ましい手段であるが、本発明では、これに限定されず、例えば接着も可能である。
【００５０】
また、上記各実施形態は、いずれもウインドウモールにおいて上部のストレート部が接合位置となっているが、上部の各コーナー部が接合位置でもよく、接合位置が複数箇所にあってもよい。特に、上記したコーナー部で非直線的に接続する場合には、図１８に示されるように、ウインドウモールＭ₅における窓板１の上部と側部に配置される各ウインドウモール部Ｍ₅₁, Ｍ₅₂のそれぞれの端末を角度（θ）で切断する。上記角度で切断した各モール部Ｍ₅₁, Ｍ₅₂の端末を角度（２θ）を保って交差するように配置された接合型（図示せず）を用い、少なくともいずれか一方のウインドウモール部Ｍ₅₁ (Ｍ₅₂) の端末を他方のウインドウモール部の端末断面形状と同一となるように変形させ、その後に角度切断面同士を角度（２θ）を保って溶着等により接合する。この方法で作られたウインドウモールＭ₅は、シャープなコーナー部を有する窓板用のモールとして適している。
【００５１】
接合対象である二つの押出部材に関しても、異断面部を有して接合の必要のある長尺材であれば、いかなる押出部材であっても接合可能であり、上記した車両のウインドウモールに限定されない。
【００５２】
【発明の効果】
本発明に係る長尺材の製造方法によれば、横断面形状の異なる二本の長尺な押出部材の端末の横断面形状が一致するように、二本の押出部材のいずれか一方又は双方の端末を変形させた状態で、その端末同士を突き合わせて接合して一本の長尺材を得るので、接合が簡単であるのに加えて、接合一体化された２本の押出部材の接合部は無段差状態となって、長尺材の装飾性を低下させない。
【図面の簡単な説明】
【図１】本発明の第１実施形態の方法により製造されたウインドウモールＭ₁が取付けられた自動車を斜前方から見た斜視図である。
【図２】図１のＸ₁−Ｘ₁線拡大断面図である。
【図３】図１のＸ₂−Ｘ₂線拡大断面図である。
【図４】ウインドウモールＭ₁の接合部分の斜視図である。
【図５】同じく正面図である。
【図６】第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を保持した一対の接合型Ｆ₁,Ｆ₂を型密着面２１の側から見た斜視図である。
【図７】同様の状態の平面図である。
【図８】図７のＹ−Ｙ線断面図である。
【図９】図７のＺ₁−Ｚ₁線断面図である。
【図１０】図７のＺ₂−Ｚ₂線断面図である。
【図１１】一対の接合型Ｆ₁,Ｆ₂の間に熱板３１を配置して、第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を熱板３１に当接させた状態の平面図である。
【図１２】熱板３１を取り外して第１及び第２の各ウインドウモール部Ｍ₁₁，Ｍ₁₂の各端末を突き合わせた状態の平面図である。
【図１３】本発明の第２実施形態の方法により製造されたウインドウモールＭ₂の接合部Ｓ₂を主体に示す部分斜視図である。
【図１４】ウインドウモールＭ₂を構成する外形の大きな側の第２ウインドウモール部Ｍ₂₂の接合部Ｓ₂の部分の接合前後の各断面図である。
【図１５】本発明の第３実施形態の方法により製造されたウインドウモールＭ₃の接合部Ｓ₃を主体に示す部分斜視図である。
【図１６】ウインドウモールＭ₃を構成する外形の小さな側の第１ウインドウモール部Ｍ₃₁の接合部Ｓ₃の部分の接合前後の各断面図である。
【図１７】本発明の第４実施形態の方法により製造されたウインドウモールＭ₄の接合部Ｓ₄を主体に示す部分斜視図である。
【図１８】本発明の第５実施形態の方法により製造されたウインドウモールＭ₅の接合部Ｓ₅を主体に示す部分斜視図である。
【符号の説明】
Ｍ₁〜Ｍ₅：フロントウインドウモール（長尺材）
Ｍ₁₁, Ｍ₂₁, Ｍ₃₁, Ｍ₄₁, Ｍ₅₁：第１ウインドウモール部（第１押出部材）
Ｍ₁₂, Ｍ₂₂, Ｍ₃₂, Ｍ₄₂, Ｍ₅₂：第２ウインドウモール部（第２押出部材）
Ｓ₁〜Ｓ₅：接合部
１：窓板
１１：フロントウインドウモールの脚部（共通断面部)
12,12',12'',12''' ：フロントウインドウモールの装飾部（異断面部）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for producing a long material composed of an extruded member made of a polymer material, and more particularly, to a method for producing an elongate material in which terminals of a plurality of extruded members having different cross-sectional shapes are smoothly joined without any step and integrated. It relates to a manufacturing method. Examples of such a long material include a window molding of a vehicle, particularly a front window molding.
[0002]
[Prior art]
As a method of manufacturing the above-described long material, a plurality of polymer extruded members having different cross-sectional shapes are prepared, and the ends of the two extruded members to be joined are spaced apart from each other in an L-shape in an injection mold. A connection member is formed between the ends of the two extruded members by insert injection molding in which a liquid polymer material is injected into a cavity corresponding to the interval of the injection mold, so as to intersect with each other. There is known a method of integrally joining ends of both extruded members via a member (for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-63-8022
[0004]
According to this insert injection molding, while a separate connecting member for connecting the terminals of the extruded members having different cross-sectional shapes is injection-molded, the respective extruded members can be joined and integrated by the connecting member. Two connecting lines inevitably occur in the part. For this reason, it is not always a satisfactory manufacturing method if the long material is visually observed and requires decorativeness.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to obtain a long material by joining ends of extruded members having different cross-sectional shapes by a simple method without generating a step at a joint portion.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an end of a long first extruded member having a first constant cross-sectional shape extruded from a polymer material, and the first extruded member extruded from a polymer material. A method for producing a long material in which an end of a long second extrusion member having a second constant cross-sectional shape different from the extrusion member is connected,
At least one of the first and second extruded members is deformed so that the cross-sectional shape of the end of one of the extruded members matches the cross-sectional shape of the end of the other extruded member, or the first and second extruded members are each deformed. In a state where both ends of the extruded members are deformed so that their cross-sectional shapes match each other, the ends are butted together, and the ends of both extruded members are joined and integrated at the butted portion of the terminals. .
[0007]
According to the first aspect of the present invention, two extruded members having a constant cross-sectional shape and different shapes can be easily joined and integrated to easily form one long material. In addition, since the joined portion of the two extruded members joined and integrated is in a stepless state, the decorativeness of the long material is not reduced.
[0008]
According to a second aspect of the present invention, in the first aspect, each of the first and second extruding members has a common cross-sectional portion having the same cross-sectional shape, and is integrated with the common cross-sectional portion. And a different cross-sectional portion having a different cross-sectional shape from each of the second extruding members, and a cross-sectional shape of a terminal of a different cross-sectional portion of at least one of the first and second extruding members is different. The other extruded member is deformed so as to match the cross-sectional shape of the end of the different cross-section, or the end of the different cross-section of each of the first and second extruded members has the same cross-sectional shape as each other. Thus, the common cross section and the different cross section are joined together.
[0009]
According to the second aspect of the present invention, in addition to the above-described operation and effect of the first aspect of the present invention, since the different cross section and the common cross section are joined together and integrated, the joining of the first extrusion member and the second extrusion member is achieved. The joint strength of the part can be kept high. In addition, in the joining operation, since the common cross-section of each extruded member has the same cross-sectional shape, only the different cross-section needs to be deformed, and the positioning of the abutting of each extruded member can be easily performed. The shape of the joining portion of the extruded member becomes accurate, and the decorative property of the long material as the product does not decrease.
[0010]
According to a third aspect of the present invention, in the invention of the second aspect, the cross-sectional shape of the different cross-section of the first and second extrusion members is such that the outer shape of the cross-section of the different cross-section of the one extrusion member is the other. The cross-sectional shape of the terminal of the different cross-section part which is formed to be larger than the cross-sectional shape of the different cross-section part of the extruded member, and the cross-section of the terminal of the different cross-section part whose cross-sectional shape is formed larger is smaller than that of the terminal of the different cross-section part which is formed smaller. It is characterized in that it is compressed and contracted from the outside so as to have the same surface shape and is joined in a reduced state.
[0011]
According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, the extruding member having the different cross section is formed to have a larger outer shape by applying a force from outside the different cross section. The cross-sectional shape of the formed different cross-sectional portion can be relatively easily deformed into a small outer shape of the cross-sectional shape of the formed different cross-sectional portion of the other extruded member.
[0012]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the first and second extruding members are formed such that the different cross-sectional portions thereof are both solid, and the cross-sectional shape of the extruding member on the side where the outer shape is formed large. It is characterized in that the material inside is flowed outward in the longitudinal direction at the deformed portion of the end of the actual cross section and joined in a plastically deformed state.
[0013]
According to the fourth aspect of the invention, in addition to the effect of the third aspect of the invention, the surplus material is caused to flow outward in the longitudinal direction when the shape is reduced, so that the material can be easily deformed into a desired accurate shape.
[0014]
According to a fifth aspect of the present invention, in the third aspect of the present invention, the extruded member on the side where the outer shape of the cross-sectional shape is largely formed is hollow, and the end of the hollow cross section has a hollow shape at the deformed portion. It is characterized in that it is joined in a reduced and deformed state.
[0015]
According to the fifth aspect of the invention, in addition to the effects of the third aspect of the invention, the hollow structure is easily deformed when an external force is applied to the different cross section, so that the end of each of the first and second extruded members is formed. The shapes can be easily matched, and it is possible to cope with the case where the shapes of different cross-sections are significantly different.
[0016]
According to a sixth aspect of the present invention, in the second aspect of the invention, the cross-sectional shape of each of the first and second extruded members is such that the outer shape of the cross-sectional shape of a different cross-sectional portion of one of the extruded members crosses the other extruded member. The cross-sectional shape of the terminal portion of the different cross-sectional portion, which is formed smaller than the outer shape of the surface shape and the outer shape of the cross-sectional shape is formed smaller, is the same as the cross-sectional shape of the different cross-sectional portion whose outer shape is formed larger in the terminal. It is characterized in that it is enlarged and joined to be the same.
[0017]
According to the sixth aspect of the invention, in addition to the effect of the second aspect of the present invention, two extrusions are performed by enlarging and deforming the outer shape of the cross-sectional shape of the extruding member having the smaller outer shape of the cross-sectional shape. The members can be joined in a stepless state.
[0018]
According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, each of the first and second extruded members is formed of a thermoplastic polymer material, and at least one of the extruded members has a deformed portion at a terminal portion. Is deformed while being heated to a temperature equal to or higher than the softening temperature, and the deformed portion after joining is plastically deformed.
[0019]
According to the invention of claim 7, in addition to the effect of the invention of any of claims 1 to 6, the deformed portion of at least one end of the extruded member is heated and joined, so that the deformation is achieved. The parts are easily deformed. In addition, since a restoring stress that tends to return the deformed portion to the original shape can be prevented, stable joining can be obtained.
[0020]
According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the first and second extruded members are formed of mutually compatible materials, and the end of each extruded member has a melting point of the material. It is characterized in that it is heated and melted at the above temperature, butted and welded and joined together.
[0021]
According to the invention of claim 8, in addition to the effect of the invention of any of claims 1 to 7, each of the first and second extruded members can be connected to each of the members to be joined without separately requiring joining means. Only by selecting the material of the extruded member, it is possible to join with high joining strength.
[0022]
According to a ninth aspect of the present invention, in any one of the first to seventh aspects, the first and second extruded members are joined by bonding.
[0023]
According to the ninth aspect of the present invention, in addition to the functions and effects of any one of the first to seventh aspects, since the joining means is an adhesive, each of the first and second extruding members can meet respective requirements or It can be formed with the optimal material according to the specifications.
[0024]
According to a tenth aspect of the present invention, in any one of the second to ninth aspects, the long material is a window molding arranged along a peripheral edge of a window plate of a vehicle, and the first material constituting the window molding is provided. A common cross-section of each of the second and second extrusion members is a leg portion that is engaged with a peripheral edge of the window plate, and a different cross-section of the first extrusion member is disposed on a side portion of the window plate and has a surface of the window plate. From the outside of the vehicle to form a weir, and the second extruded member has a different cross-section that is disposed above the window plate to form a flush surface with the surface of the window plate. A cross section is formed, and the terminals of the first and second extruded members are joined so as to be at a corner between the side portion and the upper portion of the window plate or in the vicinity thereof, thereby forming a window molding of the vehicle. And
[0025]
According to the tenth aspect of the invention, in addition to the functions and effects of any of the second to ninth aspects, when the long material is attached to the vehicle, water drops cross the side of the window plate and the side of the vehicle. It is possible to easily manufacture a window molding that prevents a flow toward the (side door side) and forms a flush surface with the window plate at the upper portion of the window plate.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to embodiments. FIG. 1 is a front window molding (hereinafter simply referred to as “window molding”) M manufactured by the method according to the first embodiment of the present invention. ₁ FIG. 2 is a perspective view of the vehicle to which the vehicle is attached as viewed obliquely from the front, and FIGS. ₁ -X ₁ Line and X _Two -X _Two 4 and FIG. 5 are window moldings M, respectively. ₁ 3A and 3B are a perspective view and a front view of a joint portion of FIG. First, Window Mall M ₁ And the mounting structure thereof will be described, and then the window molding M according to the present invention will be described. ₁ A method of manufacturing the device will be described.
[0027]
This window mall M ₁ Is mounted on the periphery of the window plate 1 of the vehicle, and when the window plate 1 is mounted on the window opening 2 on the front of the vehicle, the gap between the periphery of the window plate 1 and the body panel 3 forming the window opening 2 Is a member for closing the gap 4 formed in the above and decorating this portion. Elongated first and second two window molding portions M having different cross-sectional shapes. ₁₁ , M ₁₂ Are individually extruded, and after extrusion, the terminals are joined in a stepless state to form a single window molding M ₁ It becomes. In this use mode, the first window molding portion M is provided on the left edge of the window plate 1 as well as on the left edge of the upper edge portion except for the right edge. ₁₁ Is attached, and a second window molding part M is provided on the right edge of the window plate. ₁₂ Is attached. In FIG. 1, the first and second two window molding parts M ₁₁ , M ₁₂ Of the terminals is "S ₁ ".
[0028]
2 and FIG. 3 correspond to X in FIG. ₁ -X ₁ Line and X _Two -X _Two It is each expanded sectional view of a line. First and second window molding units M ₁₁ , M ₁₂ As shown in detail in FIGS. 2 and 3, the leg 11 is disposed outside the end face 1 a of the window plate 1, and is integrally formed at the upper end of the leg 11, and A decorative portion 12 (12 ') that elastically contacts the outer peripheral portion to decorate this portion; and a decorative portion 12 (12') integrally formed inside the lower end of the leg portion 11 and cooperates with the decorative portion 12 (12 '). 1 window molding section M ₁₁ , Which is formed integrally with the outer edge of the lower end of the leg portion 11 and elastically contacts the inclined surface portion 3a of the body panel 3, and the gap 4 And a lip portion 14 for closing the lip. First and second window molding units M ₁₁ , M ₁₂ Are different from each other in the cross-sectional shape of the decorative portion 12 (12 '), and the shapes of the other portions are all the same. The decorative portion 12 (12') has the first and second window molding portions M ₁₁ , M ₁₂ Of FIG. 7A, and the remaining portion is a “common cross-section”. First window molding section M ₁₁ The decorative portion 12 gradually increases in thickness toward the center of the window plate 1 in the mounted state so as to form a flush surface with the surface of the window plate 1 when attached to the upper edge of the window plate 1. The second window molding part M is formed so as to be smaller. ₁₂ The decorative portion 12 ′ has almost the same thickness over its entire width, and protrudes outward from the surface of the right side edge, which is the driver side of the window panel 1, to prevent rainwater from scattering to the side. To form a weir. The base end of the lip portion 14 has a hollow structure to facilitate deformation. 2 and 3, reference numeral 18 denotes an adhesive tape material attached to the side of the leg portion 11 facing the window plate 1 to fix the leg portion 11 to the window plate 1. Each window molding section M ₁₁ , M ₁₂ 5 shows a shape-retaining wire buried in the leg portion 11 to prevent expansion and contraction in the longitudinal direction. 2 and 3 show a state (free state) of the decorative portion 12 (12 ') and the lip portion 14 before deformation.
[0029]
First and second window molding units M ₁₁ , M ₁₂ Examples of the molding material include polymer materials such as synthetic resin materials, thermoplastic elastomer materials, and rubber materials. The synthetic resin material may be an engineering resin which is a general-purpose resin or not, but is preferably a thermoplastic synthetic resin having compatibility when joined by heat welding. The type of the thermoplastic elastomer material is not limited, but the first and second window molding parts M are used when performing the heat welding described below. ₁₁ , M ₁₂ Are preferably formed of thermoplastic elastomer materials having compatibility with each other. Further, from the viewpoints of weight reduction and bonding properties, an olefin-based thermoplastic elastomer material is particularly preferable. As the rubber material, EPDM, CR, CPM and the like can be applied, but EPDM, which is widely used, is desirable from the viewpoint of extrudability, quality, cost and availability.
[0030]
In the present embodiment, the first and second window molding units M ₁₁ , M ₁₂ Are formed by extrusion molding mainly using PVC, and the portion of the lip portion 14 and the lower surface of the tip portion of the decorative portion 12 (12 ') elastically contacting the window plate 1 are made of chlorine having a durometer hardness of about HDA 70 according to JIS K7215. The durometer hardness according to JIS K 7215, which is higher than that of the material of the lip portion 14, is about HDA90 for the remaining portions (the leg portion 11, the decorative portion 12 (12 '), and the holding portion 13). Made of hard PVC. The surface layer of the decorative part 12 (12 ') is softer than other parts and has a durometer hardness of about HDA65 according to JIS K 7215, which has weather resistance, and is co-extruded with the decorative part 12 (12'). They are integrally formed by welding.
[0031]
Next, a pair of joining types F ₁ , F _Two The first and second window molding parts M individually extruded using ₁₁ , M ₁₂ Each terminal is joined by fusion and one long window molding M ₁ A method for manufacturing the will be described. FIG. 6 shows the first and second window molding units M ₁₁ , M ₁₂ A pair of junction type F holding each terminal of ₁ , F _Two 7 is a perspective view of the same as viewed from the mold contact surface 21, FIG. 7 is a plan view of the same state, FIG. 8 is a cross-sectional view taken along the line YY of FIG. 7, and FIGS. , Respectively in FIG. ₁ -Z ₁ Line and Z _Two -Z _Two FIG. 11 is a sectional view taken along a line. ₁ , F _Two The hot plate 31 is disposed between the first and second window molding portions M. ₁₁ , M ₁₂ FIG. 12 is a plan view showing a state in which each terminal is brought into contact with the hot plate 31. FIG. 12 shows the first and second window molding portions M with the hot plate 31 removed. ₁₁ , M ₁₂ It is a top view of the state where each terminal of this was butted. FIG. 4 shows the window molding M ₁ FIG. 5 is a front view of the same part.
[0032]
A pair of joining type F ₁ , F _Two Are the two window molding parts M to be fusion bonded. ₁₁ , M ₁₂ Are slightly projected from the mold contact surface 21 to hold the ends in an abutting state, all of which are an upper mold 22 (22 '), a lower mold 23, and a core mold 24. It consists of a part. The closed space formed by integrally assembling the three mold portions is each window molding portion M ₁₁ , M ₁₂ And a terminal terminal housing space 25 (25 ') (see FIGS. 9 and 10) for holding and holding the terminal portion from the outside in a state where the terminal portion is stored. The mall terminal accommodating space 25 (25 ') has an outer periphery closed in a cross-sectional view, and accommodates the window molding unit M ₁₁ , M ₁₂ Are formed so as to penetrate along the longitudinal direction. A rectangular recess 26 is formed at the center of the mold contact surface 21 in a state where the three mold portions are integrally assembled, and a portion extending from the bottom surface of the recess 26 to the molding terminal accommodating space 25 (25 '). Is formed with an inclined protruding portion 27. As shown in FIG. 8, the tip of the inclined protruding portion 27 is an acute-angled blade portion 27a. ₁₁ , M ₁₂ When welding and joining the terminals, the burrs 41 (see FIG. 12) formed by the material surplus portion protruding outside the molding terminal accommodating space 25 (25 ′) due to plastic deformation can be cut and removed. . The tip of the blade portion 27a is connected to each joint type F ₁ , F _Two Is provided at the same or extremely slightly retreated position as the mold contact surface 21 which is the front end surface of the mold. The mold contact surface 21 and the inclined protruding portion 27 ₁ , F _Two The upper mold 22 (22 '), the lower mold 23, and the core mold 24, which are the three mold parts, are combined and formed.
[0033]
A second window molding part M having a decorative part 12 'having a different cross section on the side having a larger outer shape ₁₂ Type F that holds and joins _Two On the inner peripheral surface of the upper mold 22 '(the part forming the molding terminal accommodating space 25'), as shown in FIGS. Part M ₁₁ A crushing protrusion 28 for plastically deforming to the same cross-sectional shape as the decorative portion 12 is formed to protrude. Due to the presence of the crushing projection 28, the joining type F _Two The cross-sectional shape of the mall terminal accommodating space 25 ′ is gradually and continuously changed in a portion from the opening on the side of the mold contact surface 21 to the formed end on the back side of the crushing projection 28. Most of the rest is the second window molding section M ₁₂ Has the same cross-sectional shape. Joining type F _Two The shape of the opening on the side of the mold contact surface 21 of the mall terminal accommodating space 25 'is the first window molding portion M ₁₁ Of the cross section. On the other hand, the joining type F ₁ The cross-sectional shape of the mall terminal accommodating space 25 is the first window molding portion M over the entire area thereof. ₁₁ Has the same cross-sectional shape.
[0034]
The above-mentioned pair of joining types F ₁ , F _Two The first and second window molding parts M each individually extruded using ₁₁ , M ₁₂ Each terminal is joined by fusion and one long window molding M ₁ Will be described in order. First, as shown in FIG. 6 to FIG. ₁ , F _Two The upper mold 22 (22 '), the lower mold 23, and the core mold 24 are separated from each other, and the first and second window molding portions M ₁₁ , M ₁₂ And each molding part M between them. ₁₁ , M ₁₂ When the upper mold 22 (22 '), the lower mold 23, and the core mold 24 are closed in a state where the respective terminals are arranged, the first and second mold terminal accommodating spaces 25 (25') formed by these are respectively closed. Second window molding unit M ₁₁ , M ₁₂ Are held and held. In this state, the first and second window molding units M ₁₁ , M ₁₂ Each terminal of each junction type F ₁ , F _Two (See FIG. 7, the protrusion length is indicated by “T”). 1st window molding section M ₁₁ Is substantially constant over the entire circumference, but the second window molding portion M ₁₂ Since the decorative portion 12 ′ is crushed from the front side to the back side by the crushing protrusion 28 in the portion of the crushing protrusion 28, the protrusion is plastically deformed outward in the longitudinal direction. Only the protruding length of one portion protrudes longer than the protruding length T of the other portion. In this case, the second window molding portion M on the side to be deformed ₁₂ If the terminal is softened by heating it to a temperature equal to or higher than the softening temperature in advance, when the material is deformed, the material flows and deformation can be performed easily and accurately, and the residual internal stress of this part after bonding is reduced. It is preferable because it reduces the amount.
[0035]
Next, as shown in FIG. 11, the first and second window molding portions M ₁₁ , M ₁₂ Type F which accommodates and holds each terminal of ₁ , F _Two Are opposed to each other. ₁₁ , M ₁₂ When a hot plate 31 heated above the melting temperature of the material is arranged and brought into contact with the hot plate 31 and maintained in this state for a predetermined time, each joining type F ₁ , F _Two First and second window molding portions M projecting from the mold contact surface 21 ₁₁ , M ₁₂ Terminal protrusion M of ₁₁ a, M ₁₂ Since a is in contact with the hot plate 31, it is in a molten state.
[0036]
Thereafter, as shown in FIG. ₁ , F _Two The hot plate 31 is removed from the space between ₁ , F _Two And the first and second window molding portions M ₁₁ , M ₁₂ Terminal protrusion M of ₁₁ a, M ₁₂ a is pressed against each other and maintained in this state for a predetermined time, the first and second window molding portions M in the molten state ₁₁ , M ₁₂ Terminal protrusion M of ₁₁ a, M ₁₂ a are fused to each other to form the first and second window molding portions M. ₁₁ , M ₁₂ Are joined together. In particular, in the present embodiment, the first and second window molding units M ₁₁ , M ₁₂ Since the corresponding parts are formed of the same material and have compatibility with each other, the joining is ensured.
[0037]
First and second window molding units M ₁₁ , M ₁₂ Terminal joint S ₁ And a pair of joined types F until the temperature of the surroundings decreases and cools. ₁ , F _Two Is left in the set state, and after cooling, the first and second window molding portions M ₁₁ , M ₁₂ Window mall M to which terminals are joined ₁ To each junction type F ₁ , F _Two Take out from. In addition, at the time of the above-mentioned joining, the surplus portion of the material becomes the burr 41 and the joining portion S ₁ The burr 41 is cut off as follows. When pressing both dies, the joint type F ₁ , F _Two Of each joining type F by being sandwiched between the tips of the blade portions 27a, 27a of ₁ , F _Two The excess material that has protruded from the mall terminal accommodating space 25 (25 ') is cut off, so that it is not necessary to cut it off in a later step.
[0038]
The first and second window molding portions M are formed by the joining method described above. ₁₁ , M ₁₂ Window molding M obtained by joining terminals ₁ As shown in FIGS. 4 and 5, the second window molding portion M having a decorative portion 12 'having a large outer shape is provided. ₁₂ The whole thickness gradually decreases while the back surface is held in the same surface immediately before the end of ₁ In the first window molding section M ₁₁ And has the same cross-sectional shape as the decorative portion 12 and is integrally joined. Therefore, the second window molding unit M ₁₂ Joint S ₁ In the part immediately before the decorative portion 12 ′, the rate of change in the thickness increases toward the front end on the front surface side, and the decorative portion 12 ′ becomes the joint curved surface 15, and the first and second window molding portions M ₁₁ , M ₁₂ Are joined in a stepless state. Therefore, the window molding M ₁ Has joined the decorative portions 12, 12 'having different cross-sectional shapes, despite the joining thereof, ₁ The decorativeness of the is not reduced.
[0039]
Window mall M ₁ Second window molding section M ₁₂ Is attached to the right side edge of the window plate 1 on the driver side, and the weir portion of the decorative portion 12 removes this when rainwater on the window plate 1 is moved to the driver side. It functions as a rainwater guiding part that receives and guides diagonally downward along the window plate 1. Therefore, there is an advantage that it is possible to effectively prevent rainwater on the window plate 1 from being scattered to the side of the driver and narrowing the field of view of the driver.
[0040]
Next, second to fourth embodiments of the present invention will be described. The manufacturing method according to the first embodiment includes the first and second window molding portions M to be joined. ₁₁ , M ₁₂ Have different solid sections (decorations 12, 12 '), the manufacturing method of each of the second to fourth embodiments is such that at least one of the window molding parts to be connected has a hollow structure. (Or an opening structure). In each of the second to fourth embodiments, the same parts as those in the above-described first embodiment are denoted by the same reference numerals, and only the parts unique to each embodiment will be described, without redundant description.
[0041]
FIG. 13 shows a window molding M manufactured by the method according to the second embodiment of the present invention. _Two Joint S _Two 14 is a partial perspective view mainly showing the window molding M. FIG. _Two The second window molding portion M on the side of the large outer shape constituting _{twenty two} Joint S _Two FIG. 5 is a cross-sectional view before and after joining of a portion. In the second embodiment, the window molding M to be manufactured _Two The first window molding portion M on the small side of the outer shape constituting _{twenty one} Is a cross-sectional shape of the window molding M of the first embodiment. ₁ The first window molding portion M on the small side of the outer shape constituting ₁₁ The decorative portion 12 which is the same as that of FIG. 1 and has a different cross section has a solid structure, and is not deformed even after joining. On the other hand, window mall M _Two The second window molding portion M on the side of the large outer shape constituting _{twenty two} In the cross-sectional shape of the second window molding portion M of the first embodiment, ₁₂ Is different from That is, the second window molding unit M _{twenty two} The decorative portion 12 ″ constituting the window plate 1 has a window molding M _Two Is formed, an opening 12a ″ is formed which opens to the side facing the center of the window plate 1, and the opening 12a ″ gradually narrows from the entrance side to the back side so that the decorative portion 12 It disappears at the approximate center in the width direction of ''. Therefore, as is apparent from the lower diagram of FIG. _Two , The second window molding unit M _{twenty two} Is provided with upper and lower divided pieces 12b '' and 12c '', and the first window molding part M _{twenty one} The outer shape is larger than that of the decorative portion 12.
[0042]
Using a pair of joining types (not shown) substantially the same as in the first embodiment, the window molding M _Two The first and second window molding parts M constituting _{twenty one} , M _{twenty two} The second window molding portion M having a decorative portion 12 ″ having a large outer shape, _{twenty two} When the decorative portion 12 '' is held in a joint type, the upper divided portion 12b '' is gradually divided into lower portions while the lower divided portion 12c '' remains immobile at a predetermined length from the terminal. 14 and is bent toward the side of the piece 12c '', and as shown in the lower view of FIG. _Two The upper and lower divided pieces 12b ″, 12c ″ are in close contact with each other and the first window molding portion M _{twenty one} Of the decorative section 12 and the cross-sectional shape are matched. As a result, as shown in FIG. _{twenty two} Joint S _Two A curved surface 16 is formed in a portion near the first and second window molding portions M. _{twenty one} , M _{twenty two} Is the joint S _Two Are joined with no step.
[0043]
Window molding M manufactured by the manufacturing method of the second embodiment _Two Is used in the same manner as in the first embodiment. Furthermore, a mall M according to each of the third and fourth embodiments described below. _Three , M _Four The same applies to
[0044]
FIG. 15 shows a window molding M manufactured by the method according to the third embodiment of the present invention. _Three Joint S _Three FIG. 16 is a partial perspective view mainly showing _Three The first window molding portion M on the small side of the outer shape constituting ₃₁ Joint S _Three FIG. 5 is a cross-sectional view before and after joining of a portion. Window mall M of the third embodiment _Three The manufacturing method of the window molding M of the second embodiment _Two Contrary to the manufacturing method of the first embodiment, the first window molding portion M having the decorative portion 12 '''having a small outer shape ₃₁ Of the second window molding section M having a decorative section 12 'having a large outer shape. ₃₂ It is to be joined to.
[0045]
1st window molding section M ₃₁ The decorative portion 12 ′ ″ has a cut 17 formed from the inner side to the approximate center in the width direction, and the decorative portion 12 ′ ″ has upper and lower divided pieces 12 b ′ ″, When the upper divided piece 12b '''is pulled up and divided, an opening 12a''' is formed between the divided pieces 12b '''and12c'''. Configuration.
[0046]
For this reason, the first and second window molding portions M are formed by using a pair of joining types (not shown). ₃₁ , M ₃₂ The first window molding unit M ₃₁ From the notch 17 of the decorative portion 12 '''to the first window molding portion M ₃₁ A core (not shown) is inserted along the direction perpendicular to the longitudinal direction of the upper part, and the upper divided part 12b '''is pushed upward while the lower divided part 12c''' is immovable, and joined. After the joining, the core mold 24 is removed. As a result, as shown in FIG. ₃₁ The surface of the decorative portion 12 '''gradually changes at the portion of the upper split piece 12b''' to form a bonding curved surface 20, and the bonding portion S _Three In the second window molding section M ₃₂ And the first and second window molding portions M ₃₁ , M ₃₂ Are joined in a stepless state, and one long window molding M _Three Is obtained.
[0047]
FIG. 17 shows a window molding M manufactured by the method according to the fourth embodiment of the present invention. _Four Joint S _Four It is a partial perspective view mainly showing. This window mall M _Four Is the window molding M _Three First window molding section M ₃₁ 1st window molding part M of the same configuration as ₄₁ And the window molding M _Two Second window molding section M _{twenty two} Second window molding unit M having the same configuration as ₄₂ And the joint S _Four In the first window molding section M ₄₁ The upper divided piece 12b '''of the decorative portion 12''' of the second window molding portion M ₄₂ By pressing down the upper divided piece 12b '' of the decorative portion 12 '' of the _Four At each side of the window molding section M ₄₁ , M ₄₂ Are deformed and joined so as to have the same cross-sectional shape at the joint. That is, the first window molding unit M ₄₁ Increases the outer shape of the decorative portion 12 ″ ′, which is a different cross-sectional portion, and makes the second window molding portion M ₄₂ The outer shape of the decorative portion 12 ″, which is a different cross-sectional portion, is reduced, and the ends of the decorative portions 12 ″ and 12 ′ ″ are joined with the same cross-sectional shape. Therefore, the obtained window molding M _Four The curved surface 30 of the joint _Four Of the joint S _Four Has the advantage that a more smooth stepless state can be achieved.
[0048]
In the manufacturing method of each of the above embodiments, any one or both of the end portions of the first and second extruded members are deformed by clamping the joining mold holding each extruded member. Although it is performed at the same time as the joining, in the present invention, the deformation of the end portion of each extruded member only needs to be deformed at the time of joining, so it is possible to deform it in advance in another step before joining.
[0049]
The joining means at the ends of the first and second extruded members is heat welding, and a particularly large joining force can be obtained if the materials forming the two extruded members to be joined are compatible. However, the present invention is not limited to this, and for example, bonding is also possible.
[0050]
In each of the above embodiments, the upper straight portion is the joining position in the window molding, but each upper corner portion may be the joining position, or the joining position may be at a plurality of positions. In particular, when the connection is made non-linearly at the above-mentioned corners, as shown in FIG. _Five Window molding parts M arranged on the upper and side parts of the window plate 1 ₅₁ , M ₅₂ Are cut at an angle (θ). Each molding part M cut at the above angle ₅₁ , M ₅₂ At least one of the window molding parts M using a junction type (not shown) which is arranged so that the terminals cross each other while maintaining an angle (2θ). ₅₁ (M ₅₂ ) Is deformed to be the same as the terminal cross-sectional shape of the other window molding part, and then the angle cut surfaces are joined by welding or the like while maintaining the angle (2θ). Window mall M made in this way _Five Is suitable as a molding for window boards having sharp corners.
[0051]
Regarding the two extruded members to be joined, any extruded members can be joined as long as they have different cross-sections and need to be joined, and are limited to the above-described vehicle window molding. Not done.
[0052]
【The invention's effect】
According to the method for manufacturing a long material according to the present invention, either one or both of the two extruded members are so formed that the cross-sectional shapes of the ends of the two long extruded members having different cross-sectional shapes match. In a state where the terminal is deformed, the terminals are butted and joined to obtain a single long material, so that the joining is simple and in addition, the joining of the two extruded members joined and integrated. The part is in a stepless state and does not reduce the decorativeness of the long material.
[Brief description of the drawings]
FIG. 1 shows a window molding M manufactured by a method according to a first embodiment of the present invention. ₁ FIG. 2 is a perspective view of the vehicle to which the vehicle is attached as viewed from an oblique front.
FIG. 2 is a diagram showing an X in FIG. ₁ -X ₁ It is a line expanded sectional view.
FIG. 3 is a diagram showing an X in FIG. _Two -X _Two It is a line expanded sectional view.
FIG. 4 is a window molding M ₁ It is a perspective view of the joining part of.
FIG. 5 is a front view of the same.
FIG. 6 shows first and second window molding units M ₁₁ , M ₁₂ A pair of junction type F holding each terminal of ₁ , F _Two FIG. 2 is a perspective view of the mold seen from the mold contact surface 21 side.
FIG. 7 is a plan view of a similar state.
FIG. 8 is a sectional view taken along line YY of FIG. 7;
FIG. 9 shows Z in FIG. ₁ -Z ₁ It is a line sectional view.
FIG. 10 shows Z in FIG. _Two -Z _Two It is a line sectional view.
FIG. 11 shows a pair of joining types F ₁ , F _Two The hot plate 31 is disposed between the first and second window molding portions M. ₁₁ , M ₁₂ FIG. 3 is a plan view showing a state where each terminal of FIG.
FIG. 12 shows the first and second window molding parts M by removing the hot plate 31; ₁₁ , M ₁₂ It is a top view of the state where each terminal of this was butted.
FIG. 13 shows a window molding M manufactured by the method according to the second embodiment of the present invention. _Two Joint S _Two It is a partial perspective view mainly showing.
FIG. 14 is a window molding M _Two The second window molding portion M on the side of the large outer shape constituting _{twenty two} Joint S _Two FIG. 5 is a cross-sectional view before and after joining of a portion.
FIG. 15 shows a window molding M manufactured by the method according to the third embodiment of the present invention. _Three Joint S _Three It is a partial perspective view mainly showing.
FIG. 16 is a window molding M _Three The first window molding portion M on the small side of the outer shape constituting ₃₁ Joint S _Three FIG. 5 is a cross-sectional view before and after joining of a portion.
FIG. 17 shows a window molding M manufactured by the method according to the fourth embodiment of the present invention. _Four Joint S _Four It is a partial perspective view mainly showing.
FIG. 18 shows a window molding M manufactured by the method according to the fifth embodiment of the present invention. _Five Joint S _Five It is a partial perspective view mainly showing.
[Explanation of symbols]
M ₁ ~ M _Five : Front window mall (long material)
M ₁₁ , M _{twenty one} , M ₃₁ , M ₄₁ , M ₅₁ ： First window molding part (first extrusion member)
M ₁₂ , M _{twenty two} , M ₃₂ , M ₄₂ , M ₅₂ : Second window molding part (second extrusion member)
S ₁ ~ S _Five : Joint
1: Window board
11: Front window molding leg (common section)
12,12 ', 12'',12''' ： Front window molding decoration (different cross section)

Claims

An end of an elongated first extruded member having a first constant cross-sectional shape extruded from a polymeric material, and having a second constant cross-sectional shape extruded from the polymeric material and different from the first extruded member; A method for producing a long material in which a terminal with a long second extrusion member is connected,
At least one of the first and second extruded members is deformed so that the cross-sectional shape of the end of one of the extruded members matches the cross-sectional shape of the end of the other extruded member, or the first and second extruded members are each deformed. In a state where both ends of the extruded members are deformed so that their cross-sectional shapes match each other, the ends are butted together, and the ends of both extruded members are joined and integrated at the butted portion of the terminals. A method for producing a long material comprising an extruded member of a polymer material.

Each of the first and second extruded members has a common cross-sectional portion having the same cross-sectional shape, and is integrated with the common cross-sectional portion, and has a different cross-sectional shape between the first and second extruded members. Having a different cross section,
The cross-sectional shape of the terminal of the different cross-section of at least one of the first and second extrusion members is deformed so as to match the cross-section of the terminal of the different cross-section of the other extrusion member, Alternatively, both ends of the different cross-sections of the first and second extrusion members are deformed so that their cross-sectional shapes are identical and coincide with each other, and the common cross-section and the different cross-section are joined together. A method for producing a long material comprising the extruded member of the polymer material according to claim 1.

The cross-sectional shape of the different cross section of each of the first and second extrusion members is such that the cross section of the different cross section of one of the extrusion members is smaller than the cross section of the different cross section of the other extrusion member. It is formed large,
Joined in a reduced state by compressing from the outside so that the cross-sectional shape of the terminal of the different cross-section part whose cross-sectional shape is formed larger is the same as the cross-sectional shape of the terminal of the different cross-section part formed smaller. A method for producing a long material comprising an extruded member of a polymer material according to claim 2.

The different cross-sections of the first and second extruded members are both formed in a solid shape, and the inner material is deformed in the longitudinal direction in the deformed portion of the solid cross-section end of the extruded member on the side where the outer shape of the cross-sectional shape is largely formed. The method for producing a long material comprising an extruded member of a polymer material according to claim 3, wherein the material is joined while being flown to the outside and plastically deformed.

The different cross section of the extruded member on the side where the outer shape of the cross section is largely formed is formed in a hollow shape, and in a deformed portion of the end of this hollow cross section, the hollow shape is reduced and joined in a deformed state. A method for producing a long material comprising the extruded member of the polymer material according to claim 3.

The cross-sectional shape of each of the first and second extruded members is such that the outer cross-sectional shape of the different cross-sectional portion of one of the extruded members is formed smaller than the outer cross-sectional shape of the other extruded member,
The cross-sectional shape of the terminal portion of the different cross-section portion having the smaller outer shape is formed so that the cross-sectional shape of the terminal portion of the different cross-section portion having the larger outer shape is enlarged and joined to the terminal. A method for producing a long material comprising a member extruded from a polymer material according to claim 2.

Each of the first and second extruded members is formed from a thermoplastic polymer material, and deforms the deformed portion in a state where the deformed portion of the terminal portion of at least one of the extruded members is heated to a temperature equal to or higher than the softening temperature, 7. The method according to claim 1, wherein the deformed portion after the joining is plastically deformed.

The first and second extruded members are formed from materials having compatibility with each other, and the ends of the extruded members are heated to a temperature equal to or higher than the melting point of the material, butted in a molten state, butted and welded and joined. A method for producing a long material comprising an extruded member of the polymer material according to any one of claims 1 to 7.

The method according to any one of claims 1 to 7, wherein the first and second extruded members are joined by bonding.

The long material is a window molding that is arranged along the periphery of the window plate of the vehicle,
A common cross-section of the first and second extrusion members constituting the window molding is a leg that is locked to a peripheral edge of the window plate,
The different cross section of the first extrusion member is arranged on the side of the window plate and forms a large external cross section that projects from the surface of the window plate to the vehicle outside to form a weir, and the different cross section of the second extrusion member is A small cross section having a small outer shape that is disposed on the upper portion of the window plate and forms a flush surface with the surface of the window plate, and the terminals of the first and second extruded members are located between the side portion and the upper portion of the window plate. 10. The method for manufacturing a long member made of an extruded member of a polymer material according to claim 2, wherein the member is joined so as to be located at or near a corner of the window to form a window molding of a vehicle.