JP3674816B2

JP3674816B2 - Weather strip

Info

Publication number: JP3674816B2
Application number: JP15310498A
Authority: JP
Inventors: 隆史山下
Original assignee: Honda Motor Co Ltd; Nishikawa Rubber Co Ltd
Current assignee: Honda Motor Co Ltd; Nishikawa Rubber Co Ltd
Priority date: 1998-06-02
Filing date: 1998-06-02
Publication date: 2005-07-27
Anticipated expiration: 2018-06-02
Also published as: JPH11342746A

Description

【０００１】
【発明が属する技術分野】
本発明は自動車、特に乗用車のドアとボディパネルとの間隙を密封するためのウェザストリップに関し、更に詳しくは前記ボディパネルのドア開口周辺フランジ部に装着されるウェザストリップの構造に関するものである。
【０００２】
【従来の技術】
乗用車の各ドア周辺には、図４に示したようにフロントドアＦＤやリアドアＲＤの周辺とボディの一部を構成するフロントピラＦＰ、センタピラＣＰ，リアピラＲＰ，センタピラＣＰ等との間に合成ゴム材の成形体から成るウェザストリップ全体ＷＳが装着されている。
前記ウェザストリップ全体ＷＳは、ドア閉止状態下で車外側から目視できる部材と車内側に配設されて目視できない部材から構成され、従来のウェザストリップ全体ＷＳは例えば、図４のＡ−Ａ線に沿って切断して示した図６から明らかなように、ドアサッシＤＳに固定される基底部２２からボディパネルＢＰに向けて突出する中空シール部２１と、該中空シール部２１よりも車外側で前記ドアサッシＤＳに固定される基底部２４から前記ボディパネルＢＰに向けて突出するサブシール部２３とから成るドア・ウェザストリップ２０、及び前記ドア・ウェザストリップ２０よりも車内側で前記ボディパネルＢＰのドア開口周辺フランジ部Ｆに装着されるドア開口ウェザストリップ１０から成っていた。
【０００３】
特に、従来のドア開口ウェザストリップ１０（以下、単にウェザストリップ１０と称する）は、図５及び図６に示したように保形用芯金１３を介して横断面を略Ｕ字状に成形されて前記ドア開口周辺フランジ部Ｆに固定されるトリム部１１と、前記トリム部１１の側面から前記ドアサッシＤＳの車内側周辺域ＤＳａに向けて突設された中空シール部１５とから成っていた。
特に、前記中空シール部１５は、前記ドアサッシＤＳの車内側周辺域ＤＳａに圧着して密封するに必要なだけの周長を有する屈曲外周壁面１４を有する周壁部から成り、従って比較的小さな外径を有した円筒状断面を以て成形されていた。更に、前記屈曲外周壁面１４を有する周壁部は、ノッチ部１６をその内周壁面に適宜刻設して前記周壁部全体の弾性を調整していた。
【０００４】
【発明が解決しようとする課題】
しかしながら、前述した従来のウェザストリップ１０は、その圧着変形に伴う良好な密封性を得るために、前記中空シール部１５の前記周壁部の厚さを薄く、例えば約０．５ｍｍ程度に設定するので、前記ドア・ウェザストリップ２０を透過した騒音に対する遮音性を可成り犠牲にしなければならなかった。
また、図５において一点鎖線矢印Ｌ₁,Ｌ₂,Ｌ₃,Ｌ₄で示したようなドア開放時に車外側から目視される前記ウェザストリップ１０の車外側々面における各部材の輪郭ラインが多いので、外観が損なわれる欠点があった。
【０００５】
本発明は、前述した従来技術の問題点を解消し、ドア密封性を良好に維持しながら優れた遮音性を付与するウェザストリップを提供することを目的とするものである。
【０００６】
【課題を解決するための手段】
本発明のかかる目的は、自動車のドアとボディパネルとの間隙を密封するために前記ボディパネルのドア開口周辺フランジ部に装着されるウェザストリップであって、前記ウェザストリップが、横断面を略Ｕ字状に成形されて前記ドア開口周辺フランジ部に固定されるトリム部と、前記トリム部の側面から略Ｙ字状の横断面形状を以って突出する支柱部と、前記支柱部の一方の突出端部から前記ドアサッシの車内側周辺域に向けて屈曲する密封用外周壁面と該密封用外周壁面に引き続いて前記トリム部の車外側上端部まで略直線状に延長される遮音用外周壁面を一体的に成形した中空部とを具備して成り、更に、前記遮音用外周壁面が、前記密封用外周壁面よりも厚い周壁部を有し、且つ前記密封用外周壁面と前記遮音用外周壁面との接合周壁部が、前記前記ドアサッシの前記車内側周辺域から離れて前記トリム部の前記車外側上端部寄りに位置することを特徴とするウェザストリップによって達成される。
【０００７】
更に、本発明のかかる目的は、前記密封用外周壁面と前記遮音用外周壁面との前記接合周壁部が、前記支柱部の他方の突出端部に架橋することによって二個の中空部を画成することを特徴とするウェザストリップによって達成される。
【０００８】
更に、本発明のかかる目的は、前記接合周壁部が、前記密封用外周壁面に対して９０°以下の角度を以って前記支柱部の他方の突出端部に架橋することを特徴とするウェザストリップによって達成される。
【０００９】
【作用】
本発明のウェザストリップは、横断面を略Ｕ字状に成形されて前記ドア開口周辺フランジ部に固定される前記トリム部と、前記トリム部の側面から略Ｙ字状の横断面形状を以って突出する支柱部と、前記支柱部の一方の突出端部から前記ドアサッシの前記車内側周辺域に向けて屈曲する前記密封用外周壁面と該密封用外周壁面に引き続いて前記トリム部の車外側上端部まで略直線状に延長される前記遮音用外周壁面を一体的に成形した前記中空部とを具備して成るので、前記中空部の前記密封用外周壁面がドア密封性を良好に維持する一方、前記遮音用外周壁面が前記車内側周辺域から離れた位置で優れた遮音性を付与し、更に、前記密封用外周壁面と前記遮音用外周壁面との一体化によって前記ウェザストリップの車外側々面における各部材の輪郭ラインが減少する。
【００１０】
更に、本発明のウェザストリップは、前記遮音用外周壁面が前記密封用外周壁面よりも厚い周壁部を有して成るので、ドア密封性と遮音性がより確実に維持及び付与される。
【００１１】
更に、本発明のウェザストリップは、前記密封用外周壁面と前記遮音用外周壁面との接合周壁部が、前記支柱部の他方の突出端部に架橋することによって二個の中空部を画成するので、前記支柱部と前記接合周壁部との架橋によって遮音性が更に向上し、またドア閉止時の前記中空部の圧着変形による前記密封用外周壁面の前記車内側周辺域からの過剰なはみ出しが阻止される。
【００１２】
更に、本発明のウェザストリップは、前記密封用外周壁面と前記遮音用外周壁面との前記接合周壁部が、前記ドアサッシの前記車内側周辺域から離れて前記トリム部の前記車外側上端部寄りに位置するので、厚肉の前記遮音用外周壁面の前記ドアサッシの前記車内側周辺域に対する干渉によってドア閉止力が上昇することを回避する。
【００１３】
更に、本発明のウェザストリップは、前記接合周壁部が、前記密封用外周壁面に対して９０°以下の角度を以って前記支柱部の他方の突出端部に架橋するので、ドア閉止時の前記中空部の圧着変形による前記密封用外周壁面の前記車内側周辺域からの過剰なはみ出しがより確実に阻止される。
【００１４】
【発明の実施の形態】
本発明のウェザストリップの一実施態様について、添付した図面に基づき以下に詳述する。図１は従来のウェザストリップと同様に図５のＡ−Ａ線に沿って切断したドア閉止状態下の本発明のウェザストリップ全体ＷＳを示した横断面図であり、図２は本発明のドア開口ウェザストリップ３０の拡大した横断面図であり、図３は本発明のウェザストリップの他の実施態様を示した横断面図である。
【００１５】
図１及び図２に示したように、本発明のウェザストリップ全体ＷＳは、前述した従来のウェザストリップ全体ＷＳと同様にドア閉止状態下で車外側から目視できる部材と車内側に配設されて目視できない部材から構成される。本発明のウェザストリップ全体ＷＳは例えば、図４のＡ−Ａ線に沿って切断して示した図１のように構成される。
【００１６】
即ち、ドアサッシＤＳに固定される基底部２２からボディパネルＢＰに向けて突出する中空シール部２１と、該中空シール部２１よりも車外側で前記ドアサッシＤＳに固定される基底部２４から前記ボディパネルＢＰに向けて突出するサブシール部２３とから成るドア・ウェザストリップ５０、及び前記ドア・ウェザストリップ２０よりも車内側で前記ボディパネルＢＰのドア開口周辺フランジ部Ｆに装着されるドア開口ウェザストリップ３０から成る。
【００１７】
特に、本発明のドア開口ウェザストリップ３０（（以下、単にウェザストリップ３０と称する）は、図１及び図２に示したように保形用芯金３３を介して横断面を略Ｕ字状に成形され、複数対のリップ部３２を介して前記ドア開口周辺フランジ部Ｆに固定されるトリム部３１と、前記トリム部３１の側面から前記ドアサッシＤＳの車内側周辺域ＤＳａに向けて略Ｙ字状の横断面形状を以って突出する支柱部３４が合成ソリッドゴム材、例えばエチレンプロピレンゴム材から成形される。なお、３５はガーニッシュ（図示せず）を嵌入する溝部である。
【００１８】
また、前記支柱部３４の一方の突出端部から前記ドアサッシＤＳの車内側周辺域ＤＳａに向けて屈曲する密封用外周壁面３６と、前記密封用外周壁面３６に引き続いて前記トリム部３１の車外側上端部３１ａまで略直線状に延長される遮音用外周壁面３７を一体的に成形し、更に前記密封用外周壁面３６と前記遮音用外周壁面３７との接合周壁部を前記支柱部３４の他方の突出端部に架橋することによって形成される二個の中空部３９，４０とを、合成スポンジゴム材、例えばエチレンプロピレンゴム材から成形される。
【００１９】
更に、前記遮音用外周壁面３７は、前記密封用外周壁面３６よりも厚い周壁部を有し、例えば前記遮音用外周壁面３７は約１．０ｍｍ、前記密封用外周壁面３６は約０．５ｍｍ程度の厚さに設定する。なお、前記密封用外周壁面３６の内周壁面には必要に応じて、例えば深さが約０．３ｍｍで幅が約１．０ｍｍ程度のノッチ部３８を刻設して前記中空部３９の弾性を調整する。
【００２０】
前記中空部３９の比較的薄肉の前記密封用外周壁面３６がドア密封性を良好に維持する一方、前記中空部４０の比較的厚肉の前記遮音用外周壁面３７が遮音性を付与し、前記支柱部３４と前記接合周壁部との架橋によって遮音性が更に向上し、またドア閉止時の前記中空部３９の圧着変形による前記密封用外周壁面３６の前記車内側周辺域ＤＳａからの過剰なはみ出しが阻止される。更に、前記密封用外周壁面３６と前記遮音用外周壁面３７との一体化によって前記ウェザストリップ１０の車外側々面における各部材の各輪郭ラインＬ₁,Ｌ₃,Ｌ₄に減少する。
【００２１】
更に、本発明のウェザストリップ１０は、前記密封用外周壁面３６と前記遮音用外周壁面３７との前記接合周壁部が、前記前記ドアサッシＤＳの前記車内側周辺域ＤＳａから離れて前記トリム部３１の前記車外側上端部３１ａ寄りに配設することによって、厚肉の前記遮音用外周壁面３７の前記ドアサッシＤＳの前記車内側周辺域ＤＳａに対する干渉によってドア閉止力が上昇することを回避する。
【００２２】
また、前記接合周壁部が、前記密封用外周壁面３６に対して９０°以下の角度θを以て前記支柱部３４の他方の突出端部に架橋することによって、前記遮音用外周壁面３７の前記車内側周辺域ＤＳａに対する干渉が更に回避されて、ドア閉止力の上昇を抑制する。
【００２３】
図３に示した本発明のウェザストリップ１０の他の実施態様において、支柱部３４ａは密封用外周壁面３６ａと遮音用外周壁面３７ａとの接合周壁部と架橋せずに、その一方の突出端部に比較的薄肉の前記密封用外周壁面３６ａの一方端部と接合し、比較的厚肉の前記遮音用外周壁面３７ａの他方端部が前記トリム部３１の車外側上端部３１ａに接合して一個の中空部４１を形成するように変更したものである。
【００２４】
この実施態様は、前記支柱部３４の他方の突出端部と前記接合周壁部との架橋部分が省略されているが、前記遮音用外周壁面３７ａが前記密封用外周壁面３６ａよりも厚い周壁部を有し、例えば前記遮音用外周壁面３７ａは約１．０ｍｍ、前記密封用外周壁面３６ａは約０．５ｍｍ程度の厚さにに設定するので、ドア閉止時の前記中空部４１の圧着変形による前記密封用外周壁面３６ａの前記車内側周辺域ＤＳａからの過剰なはみ出しが阻止される。
【００２５】
なお、前記遮音用外周壁面３７ａを前記密封用外周壁面３６ａと同じ厚さの周壁部に設定すると、図３の破線で示したように前記車内側周辺域ＤＳａに対する密着度が低下し、前記車内側周辺域ＤＳａからの過剰なはみ出しが生じるので好ましくない。
【００２６】
【発明の効果】
以上記述した本発明のウェザストリップは、次に記すような新規な効果を奏するものである。即ち、本発明のウェザストリップは、横断面を略Ｕ字状に成形されて前記ドア開口周辺フランジ部に固定される前記トリム部と、前記トリム部の側面から前記ドアサッシの前記車内側周辺域に向けて突設した前記支柱部と、前記支柱部の突出端部から前記ドアサッシの前記車内側周辺域に向けて屈曲する前記密封用外周壁面と該密封用外周壁面に引き続いて前記トリム部の車外側上端部まで略直線状に延長される前記遮音用外周壁面を一体的に成形した前記中空部とを具備して成るので、前記中空部の前記密封用外周壁面がドア密封性を良好に維持し、前記遮音用外周壁面が前記車内側周辺域から離れた位置で優れた遮音性を付与し、更に、前記密封用外周壁面と前記遮音用外周壁面との一体化によって前記ウェザストリップの車外側々面における各部材の輪郭ラインを減少させて外観を良好に保つことが可能になった。
【００２７】
更に、本発明のウェザストリップは、前記遮音用外周壁面が前記密封用外周壁面よりも厚い周壁部を有して成るので、ドア密封性と遮音性をより確実に維持及び付与することが可能になった。
【００２８】
更に、本発明のウェザストリップは、前記支柱部が前記トリム部の側面から略Ｙ字状の横断面形状を以て突出する一方、前記密封用外周壁面と前記遮音用外周壁面との接合周壁部が、前記支柱部の他方の突出端部に架橋することによって二個の中空部を画成するので、前記支柱部と前記接合周壁部との架橋によって遮音性を更に向上させ、またドア閉止時の前記中空部の圧着変形による前記密封用外周壁面の前記車内側周辺域からの過剰なはみ出しを阻止することが可能になった。
【００２９】
更に、本発明のウェザストリップは、前記密封用外周壁面と前記遮音用外周壁面との前記接合周壁部が、前記ドアサッシの前記車内側周辺域から離れて前記トリム部の前記車外側上端部寄りに位置するので、厚肉の前記遮音用外周壁面の前記ドアサッシの前記車内側周辺域に対する干渉によってドア閉止力が上昇することを回避することが可能になった。
【００３０】
更に、本発明のウェザストリップは、前記接合周壁部が、前記密封用外周壁面に対して９０°以下の角度を以て前記支柱部の他方の突出端部に架橋するので、ドア閉止時の前記中空部の圧着変形による前記密封用外周壁面の前記車内側周辺域からの過剰なはみ出しをより確実に阻止することが可能になった。
【図面の簡単な説明】
【図１】図４のＡ−Ａ線に沿って切断したドア閉止状態下の本発明のウェザストリップ全体を示した横断面図である。
【図２】本発明のウェザストリップの拡大した横断面図である。
【図３】本発明のウェザストリップの他の実施態様を示した横断面図である。
【図４】乗用車の各ドア周辺に装着されるウェザストリップ全体の説明図である。
【図５】従来のウェザストリップの拡大した横断面図である。
【図６】図４のＡ−Ａ線に沿って切断したドア閉止状態下の従来のウェザストリップ全体を示した横断面図である。
【符号の説明】
ＷＳウェザストリップ全体
ＦＤフロントドア
ＲＤリアドア
ＦＰフロントピラ
ＣＰセンタピラ
ＲＰリアピラ
ＢＰボディパネル
Ｆフランジ部
ＤＳドアサッシ
ＤＳａドアサッシの車内側周辺域
Ｌ₁ 輪郭ライン
Ｌ₂ 輪郭ライン
Ｌ₃ 輪郭ライン
Ｌ₄ 輪郭ライン
１０従来のウェザストリップ
１１トリム部
１１ａトリム部の他方上端部
１２リップ部
１３保形用芯金
１４屈曲外周壁面
１５中空シール部
１６ノッチ部
２０ドア・ウェザストリップ
２１中空シール部
２２基底部
２３サブシール部
２４基底部
３０本発明のウェザストリップ
３１トリム部
３１ａトリム部の他方上端部
３２リップ部
３３保形用芯金
３４支柱部
３４ａ支柱部
３５溝部
３６密封用外周壁面
３６ａ密封用外周壁面
３７遮音用外周壁面
３７ａ遮音用外周壁面
３８ノッチ部
３９中空部
４０中空部
４１中空部
θ 角度[0001]
[Technical field to which the invention belongs]
The present invention relates to a weather strip for sealing a gap between a door and a body panel of an automobile, particularly a passenger car, and more particularly to a structure of a weather strip attached to a flange portion around a door opening of the body panel.
[0002]
[Prior art]
As shown in FIG. 4, a synthetic rubber is provided between the front door FD, the rear door RD, and the front pillar FP, the center pillar CP, the rear pillar RP, the center pillar CP, and the like that form a part of the body. The entire weather strip WS made of a molded material is mounted.
The entire weather strip WS is composed of a member that can be viewed from the outside of the vehicle when the door is closed and a member that is disposed on the inside of the vehicle and cannot be viewed. As is apparent from FIG. 6 cut along, the hollow seal portion 21 that protrudes from the base portion 22 fixed to the door sash DS toward the body panel BP, and the outer side of the hollow seal portion 21 on the outside of the vehicle. A door-weather strip 20 comprising a base seal 24 fixed to the door sash DS and a sub-seal portion 23 projecting toward the body panel BP, and a door opening of the body panel BP on the inner side of the door-weather strip 20 The door opening weather strip 10 was mounted on the peripheral flange F.
[0003]
In particular, a conventional door opening weatherstrip 10 (hereinafter simply referred to as a weatherstrip 10) has a substantially U-shaped cross section through a shape-retaining core 13 as shown in FIGS. The trim portion 11 fixed to the door opening peripheral flange portion F, and the hollow seal portion 15 projecting from the side surface of the trim portion 11 toward the vehicle interior peripheral area DSa of the door sash DS.
In particular, the hollow seal portion 15 is composed of a peripheral wall portion having a bent outer peripheral wall surface 14 having a perimeter necessary for sealing by crimping to the vehicle inner peripheral region DSa of the door sash DS, and thus has a relatively small outer diameter. It was molded with a cylindrical cross section having Further, the peripheral wall portion having the bent outer peripheral wall surface 14 has a notch 16 appropriately engraved on the inner peripheral wall surface thereof to adjust the elasticity of the entire peripheral wall portion.
[0004]
[Problems to be solved by the invention]
However, in the conventional weather strip 10 described above, the thickness of the peripheral wall portion of the hollow seal portion 15 is set to be thin, for example, about 0.5 mm, in order to obtain a good sealing property due to the crimp deformation. The sound insulation against the noise transmitted through the door / weather strip 20 must be sacrificed considerably.
Further, there are many contour lines of each member on the vehicle exterior side surfaces of the weather strip 10 as viewed from the vehicle exterior side when the door is opened, as indicated by alternate long and short dashed arrows L ₁ , L ₂ , L ₃ and L ₄ in FIG. Therefore, there was a defect that the appearance was impaired.
[0005]
An object of the present invention is to provide a weather strip that solves the above-described problems of the prior art and provides excellent sound insulation while maintaining good door sealing performance.
[0006]
[Means for Solving the Problems]
An object of the present invention is a weather strip that is mounted on a flange portion around a door opening of a body panel in order to seal a gap between an automobile door and a body panel, and the weather strip has a substantially U-shaped cross section. A trim portion that is molded in a letter shape and fixed to the peripheral flange portion of the door opening, a post portion that protrudes from the side surface of the trim portion with a substantially Y-shaped cross-sectional shape, and one of the post portions An outer peripheral wall surface for sealing that bends from the protruding end portion toward the vehicle inner peripheral area of the door sash, and an outer peripheral wall surface for sound insulation that extends substantially linearly from the outer peripheral wall surface for sealing to the upper outer end portion of the trim portion. The sound-insulating outer peripheral wall surface has a thicker peripheral wall portion than the sealing outer peripheral wall surface, and the sealing outer peripheral wall surface and the sound insulating outer peripheral wall surface Joint circumference Parts is achieved by weatherstripping, characterized in that positioned on the vehicle outer side upper end side of the said trim portion away from the vehicle interior perimeter of said door sash.
[0007]
Further, the object of the present invention is to define two hollow portions by bridging the joint peripheral wall portion between the sealing outer peripheral wall surface and the sound insulating outer peripheral wall surface to the other protruding end portion of the support column portion. Achieved by a weatherstrip that is characterized by
[0008]
Furthermore, above and other objects of the present invention, weather of the joint wall portion, characterized in that cross-linking to the other projecting end of the said strut drives out angle of 90 ° or less with respect to sealing the outer peripheral wall surface Accomplished by strip.
[0009]
[Action]
The weather strip of the present invention has a trim section that has a substantially U-shaped cross section and is fixed to the door opening peripheral flange section, and a substantially Y-shaped cross section from the side of the trim section. And the outer peripheral wall surface for sealing that bends from one protruding end portion of the post portion toward the vehicle inner peripheral region and the outer peripheral wall surface of the trim portion following the outer peripheral wall surface for sealing. The sound-insulating outer peripheral wall surface extending substantially linearly to the upper end portion is provided with the hollow portion integrally formed, so that the sealing outer peripheral wall surface of the hollow portion maintains a good door sealing property. On the other hand, the sound insulation outer peripheral wall provides excellent sound insulation at a position away from the vehicle inner peripheral area, and further, the weather strip outer periphery wall is integrated with the sealing outer peripheral wall and the sound insulation outer peripheral wall. Each part The contour line of decreases.
[0010]
Furthermore, the weather strip of the present invention has a peripheral wall portion whose outer wall surface for sound insulation is thicker than the outer peripheral wall surface for sealing, so that the door sealing property and the sound insulating property are more reliably maintained and imparted .
[0011]
Furthermore, the weather strip of the present invention defines two hollow portions by bridging the joining peripheral wall portion between the sealing outer peripheral wall surface and the sound insulating outer peripheral wall surface to the other protruding end portion of the support column portion. Therefore , sound insulation is further improved by bridging the support column and the joint peripheral wall portion, and excessive protrusion of the sealing outer peripheral wall surface from the vehicle inner peripheral region due to crimp deformation of the hollow portion when the door is closed. Be blocked.
[0012]
Furthermore, the weather strip of the present invention is such that the joint peripheral wall portion between the sealing outer peripheral wall surface and the sound insulating outer peripheral wall surface is away from the vehicle inner peripheral region of the door sash and closer to the vehicle outer upper end portion. Therefore, the door closing force is prevented from increasing due to interference of the thick walled sound insulation outer peripheral wall surface with the door sash to the vehicle interior peripheral area .
[0013]
Furthermore, in the weather strip of the present invention, the joint peripheral wall portion bridges the other protruding end portion of the support column portion at an angle of 90 ° or less with respect to the sealing outer peripheral wall surface. Excessive protrusion of the sealing outer peripheral wall surface from the vehicle inner peripheral area due to the crimp deformation of the hollow portion is more reliably prevented .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a weather strip according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing the entire weather strip WS of the present invention under a closed door state cut along the line AA of FIG. 5 in the same manner as a conventional weather strip, and FIG. 2 is a door of the present invention. FIG. 3 is an enlarged cross-sectional view of an open weather strip 30, and FIG. 3 is a cross-sectional view showing another embodiment of the weather strip of the present invention .
[0015]
As shown in FIGS. 1 and 2, the entire weather strip WS of the present invention is disposed on the inside of the vehicle and a member that can be seen from the outside of the vehicle when the door is closed, like the conventional weather strip overall WS described above. Consists of invisible members. The entire weather strip WS of the present invention is configured as shown in FIG. 1 cut along the line AA in FIG .
[0016]
That is, a hollow seal portion 21 projecting from the base portion 22 fixed to the door sash DS toward the body panel BP, and a base portion 24 fixed to the door sash DS outside the hollow seal portion 21 from the base portion 24 to the body panel. A door / weather strip 50 including a sub-seal portion 23 projecting toward the BP, and a door opening weather strip 30 mounted on the door opening peripheral flange portion F of the body panel BP on the inner side of the door / weather strip 20. Consists of .
[0017]
In particular, the door opening weatherstrip 30 (hereinafter simply referred to as the weatherstrip 30) of the present invention has a substantially U-shaped cross section through a shape retaining core 33 as shown in FIGS. A trim part 31 that is molded and fixed to the door opening peripheral flange part F via a plurality of pairs of lip parts 32, and a substantially Y-shape from the side surface of the trim part 31 toward the vehicle interior peripheral area DSa of the door sash DS A column portion 34 protruding with a cross-sectional shape is formed from a synthetic solid rubber material, for example, an ethylene propylene rubber material, and 35 is a groove portion into which a garnish (not shown) is inserted.
[0018]
In addition, a sealing outer peripheral wall surface 36 that bends from one projecting end portion of the support column 34 toward the vehicle interior peripheral area DSa of the door sash DS, and a vehicle outer side of the trim portion 31 following the sealing outer peripheral wall surface 36. A sound insulation outer peripheral wall surface 37 extending substantially linearly to the upper end portion 31 a is integrally formed, and a joint peripheral wall portion between the sealing outer peripheral wall surface 36 and the sound insulation outer peripheral wall surface 37 is formed as the other end of the column portion 34. The two hollow portions 39 and 40 formed by cross-linking the protruding end portions are formed from a synthetic sponge rubber material, for example, an ethylene propylene rubber material .
[0019]
Further, the sound insulation outer peripheral wall surface 37 has a thicker peripheral wall portion than the sealing outer peripheral wall surface 36. For example, the sound insulation outer peripheral wall surface 37 is about 1.0 mm, and the sealing outer peripheral wall surface 36 is about 0.5 mm. Set to the thickness of. Note that a notch portion 38 having a depth of about 0.3 mm and a width of about 1.0 mm, for example, is formed on the inner peripheral wall surface of the sealing outer peripheral wall surface 36 as needed, and the elasticity of the hollow portion 39 is obtained. Adjust .
[0020]
The relatively thin-walled outer peripheral wall surface 36 for sealing of the hollow portion 39 maintains a good door sealing property, while the relatively thick-walled outer peripheral wall surface 37 for sound insulation of the hollow portion 40 provides sound insulation, The sound insulation is further improved by bridging the support column portion 34 and the joint peripheral wall portion, and excessive protrusion of the sealing outer peripheral wall surface 36 from the vehicle inner peripheral area DSa due to the crimp deformation of the hollow portion 39 when the door is closed. Is blocked. Further, by integrating the sealing outer peripheral wall surface 36 and the sound insulating outer peripheral wall surface 37, the contour lines L ₁ , L ₃ , and L ₄ of the respective members on the outer surface of the weather strip 10 are reduced.
[0021]
Further, according to the weather strip 10 of the present invention, the joint peripheral wall portion between the sealing outer peripheral wall surface 36 and the sound insulating outer peripheral wall surface 37 is separated from the vehicle inner peripheral region DSa of the door sash DS. By disposing near the vehicle upper end 31a, the door closing force is prevented from increasing due to the interference of the door sash DS of the thick sound-insulating outer peripheral wall surface 37 with the vehicle inner peripheral area DSa.
[0022]
Further, the joint peripheral wall portion is bridged to the other protruding end portion of the column portion 34 at an angle θ of 90 ° or less with respect to the sealing outer peripheral wall surface 36, so that the vehicle interior side of the sound insulating outer peripheral wall surface 37 is formed. Interference with the surrounding area DSa is further avoided, and an increase in the door closing force is suppressed.
[0023]
In another embodiment of the weatherstrip 10 of the present invention shown in FIG. 3, the strut portion 34a is not bridged with the joining peripheral wall portion between the sealing outer peripheral wall surface 36a and the sound insulating outer peripheral wall surface 37a, and one protruding end portion thereof. A relatively thin wall is joined to one end of the sealing outer peripheral wall surface 36 a, and the other end of the relatively thick sound-insulating outer wall surface 37 a is joined to the upper outer end portion 31 a of the trim portion 31. The hollow portion 41 is changed to be formed.
[0024]
In this embodiment, the bridging portion between the other protruding end portion of the support column 34 and the joint peripheral wall portion is omitted, but the peripheral wall portion 37a for sound insulation is thicker than the outer peripheral wall surface 36a for sealing. For example, the outer peripheral wall surface 37a for sound insulation is set to a thickness of about 1.0 mm, and the outer peripheral wall surface 36a for sealing is set to a thickness of about 0.5 mm. Excessive protrusion of the sealing outer peripheral wall surface 36a from the vehicle inner peripheral area DSa is prevented.
[0025]
If the sound insulating outer peripheral wall surface 37a is set to a peripheral wall portion having the same thickness as the sealing outer peripheral wall surface 36a, the degree of adhesion to the vehicle inner peripheral region DSa is reduced as shown by the broken line in FIG. Since excessive protrusion from the inner peripheral area DSa occurs, it is not preferable.
[0026]
【The invention's effect】
The weather strip of the present invention described above has the following new effects. That is, the weather strip of the present invention has a trim section that has a substantially U-shaped cross section and is fixed to the door opening peripheral flange section, and a side surface of the trim section from the side surface of the trim section to the vehicle inner peripheral area. The projecting portion projecting toward the vehicle, the outer peripheral wall surface for sealing bent from the projecting end of the support column toward the vehicle inner peripheral region, and the vehicle of the trim unit following the outer peripheral wall surface for sealing. The sound-insulating outer peripheral wall surface that extends substantially linearly to the outer upper end portion is formed integrally with the hollow portion, so that the sealing outer peripheral wall surface of the hollow portion maintains a good door sealing property. The sound insulation outer peripheral wall provides excellent sound insulation at a position away from the vehicle inner peripheral area, and further, the weather strip outer side wall is integrated by integrating the sealing outer peripheral wall surface and the sound insulating outer peripheral wall surface. In many ways Kicking reduced contour lines of each member becomes possible to maintain a favorable appearance.
[0027]
Furthermore, the weather strip according to the present invention has a peripheral wall portion whose outer wall surface for sound insulation is thicker than the outer peripheral wall surface for sealing, so that it is possible to more reliably maintain and impart door sealability and sound insulation properties. became.
[0028]
Further, in the weather strip of the present invention, the supporting column part protrudes from the side surface of the trim part with a substantially Y-shaped cross-sectional shape, while the joining peripheral wall part between the sealing outer peripheral wall face and the sound insulating outer peripheral wall face is Since the two hollow portions are defined by bridging the other protruding end portion of the support column, sound insulation is further improved by bridging the support column and the joint peripheral wall, and the door is closed when the door is closed. It has become possible to prevent excessive protrusion of the sealing outer peripheral wall surface from the vehicle inner peripheral area due to the crimp deformation of the hollow portion.
[0029]
Furthermore, the weather strip of the present invention is such that the joint peripheral wall portion of the sealing outer peripheral wall surface and the sound insulating outer peripheral wall surface is away from the vehicle inner peripheral region of the door sash and closer to the vehicle outer upper end portion. Therefore, it is possible to avoid an increase in the door closing force due to the interference of the thick-walled sound-insulating outer peripheral wall surface with the door inner sash.
[0030]
Further, in the weather strip of the present invention, the joining peripheral wall portion bridges the other protruding end portion of the support column portion at an angle of 90 ° or less with respect to the sealing outer peripheral wall surface, so that the hollow portion when the door is closed It has become possible to more reliably prevent excessive protrusion of the sealing outer peripheral wall surface from the vehicle inner peripheral area due to the crimping deformation of.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an entire weather strip of the present invention under a door closed state cut along line AA in FIG. 4;
FIG. 2 is an enlarged cross-sectional view of a weatherstrip of the present invention.
FIG. 3 is a cross-sectional view showing another embodiment of the weatherstrip of the present invention.
FIG. 4 is an explanatory view of the entire weather strip mounted around each door of a passenger car.
FIG. 5 is an enlarged cross-sectional view of a conventional weather strip.
6 is a cross-sectional view showing an entire conventional weather strip taken along the line AA in FIG. 4 and in a closed door state.
[Explanation of symbols]
WS Weather strip overall FD Front door RD Rear door FP Front pillar CP Center pillar RP Rear pillar BP Body panel F Flange part DS Door sash DSa Door sash interior area L ₁ Contour line L ₂ Contour line L ₃ Contour line L ₄ Contour line 10 Conventional Weather strip 11 Trim portion 11a The other upper end portion 12 of the trim portion 13 Lip portion 13 Shape retaining core 14 Bent outer peripheral wall 15 Hollow seal portion 16 Notch portion 20 Door / weather strip 21 Hollow seal portion 22 Base portion 23 Sub seal portion 24 Base portion 30 The weather strip 31 of the present invention The trim part 31a The other upper end part 32 of the trim part 32 The lip part 33 The core metal for shape retention 34 The column part 34a The column part 35 The groove part 36 The outer peripheral wall surface 36a for sealing The outer peripheral wall surface 37 for sound insulation Outer peripheral wall 38 for notch 9 hollow 40 hollow portion 41 hollow portion θ angle

Claims

自動車のドア（ＦＤ，ＲＤ）とボディパネル（ＢＰ）との間隙を密封するために前記ボディパネル（ＢＰ）のドア開口周辺フランジ部（Ｆ）に装着されるウェザストリップ（３０）であって、前記ウェザストリップ（３０）が、横断面を略Ｕ字状に成形されて前記ドア開口周辺フランジ部（Ｆ）に固定されるトリム部（３１）と、前記トリム部（３１）の側面から略Ｙ字状の横断面形状を以って突出する支柱部（３４，３４ａ）と、前記支柱部（３４，３４ａ）の一方の突出端部から前記ドアサッシ（ＤＳ）の車内側周辺域（ＤＳａ）に向けて屈曲する密封用外周壁面（３６，３６ａ）と該密封用外周壁面（３６，３６ａ）に引き続いて前記トリム部（３１）の車外側上端部（３１ａ）まで略直線状に延長される遮音用外周壁面（３７，３７ａ）を一体的に成形した中空部（３９，４０，４１）とを具備して成り、更に、前記遮音用外周壁面（３７，３７ａ）が、前記密封用外周壁面（３６，３６ａ）よりも厚い周壁部を有し、且つ前記密封用外周壁面（３６，３６ａ）と前記遮音用外周壁面（３７，３７ａ）との接合周壁部が、前記前記ドアサッシ（ＤＳ）の前記車内側周辺域（ＤＳａ）から離れて前記トリム部（３１）の前記車外側上端部（３１ａ）寄りに位置することを特徴とするウェザストリップ。A weather strip (30) mounted on a door opening peripheral flange portion (F) of the body panel (BP) to seal a gap between the door (FD, RD) of the automobile and the body panel (BP), The weather strip (30) has a substantially U-shaped cross section and is fixed to the peripheral flange portion (F) of the door opening, and a substantially Y from the side of the trim portion (31). A column portion (34, 34a) protruding with a letter-shaped cross-sectional shape, and one protruding end portion of the column portion (34, 34a) to the vehicle interior peripheral area (DSa) of the door sash (DS) The outer peripheral wall surface for sealing (36, 36a) that bends toward and the outer peripheral wall surface (36, 36a) for sealing, and then the sound insulation that extends substantially linearly to the upper outer end portion (31a) of the trim portion (31). Outer peripheral wall (37, 37 ) Integrally formed hollow portions (39, 40, 41), and the outer peripheral wall surface for sound insulation (37, 37a) is thicker than the outer peripheral wall surface for sealing (36, 36a). A peripheral wall portion having a peripheral wall portion, and a joint peripheral wall portion between the outer peripheral wall surface for sealing (36, 36a) and the outer peripheral wall surface for sound insulation (37, 37a) is an inner peripheral region (DSa) of the door sash (DS). A weatherstrip that is located away from the trim and close to the upper end (31a) of the trim part (31).

前記密封用外周壁面（３６）と前記遮音用外周壁面（３７）との前記接合周壁部が、前記支柱部（３４）の他方の突出端部に架橋することによって二個の中空部（３９，４０）を画成することを特徴とする請求項１に記載のウェザストリップ。 The joint peripheral wall portion between the sealing outer peripheral wall surface (36) and the sound insulating outer peripheral wall surface (37) is bridged to the other projecting end portion of the support column portion (34), whereby two hollow portions (39, 40. The weatherstrip according to claim 1, wherein 40) is defined.

前記接合周壁部が、前記密封用外周壁面（３６）に対して９０°以下の角度（θ）を以って前記支柱部（３４）の他方の突出端部に架橋することを特徴とする請求項２に記載のウェザストリップ。Wherein said joining peripheral wall portion, characterized in that the cross-linking to the other projecting end of the strut drives out 90 ° or less an angle (theta) with respect to sealing the outer peripheral wall surface (36) (34) Item 3. The weather strip according to Item 2.