JP4657844B2 - Weather strip for automobile - Google Patents

Weather strip for automobile Download PDF

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Publication number
JP4657844B2
JP4657844B2 JP2005213961A JP2005213961A JP4657844B2 JP 4657844 B2 JP4657844 B2 JP 4657844B2 JP 2005213961 A JP2005213961 A JP 2005213961A JP 2005213961 A JP2005213961 A JP 2005213961A JP 4657844 B2 JP4657844 B2 JP 4657844B2
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Prior art keywords
mounting flange
weather strip
wall
upper wall
automobile
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JP2007030588A (en
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義弘 小原
修司 来須
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Nishikawa Rubber Co Ltd
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Nishikawa Rubber Co Ltd
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Description

本発明は、樹脂製の芯材を埋設し、例えば、自動車のドア開口部に沿って形成される取付フランジに組付けられるゴム様弾性材製のウエザーストリップに関するものである。   The present invention relates to a weather strip made of a rubber-like elastic material in which a resin core material is embedded and is assembled to a mounting flange formed along, for example, a door opening of an automobile.

図１乃至図３を参照して説明する。例えば、自動車のドア開口部２に沿って形成される取付フランジ３には、ドアとのシール性を確保するために断面略コの字状のグリップ部２１と中空シール部２３を有するウエザーストリップ２０が組付けられる。このウエザーストリップ２０は軽量化などの観点から、樹脂製の芯材２２を埋設したゴム様弾性材製のものが多く使用されている。   This will be described with reference to FIGS. For example, a weather strip 20 having a substantially U-shaped grip portion 21 and a hollow seal portion 23 is provided on a mounting flange 3 formed along a door opening 2 of an automobile in order to ensure sealing performance with the door. Is assembled. The weather strip 20 is often made of a rubber-like elastic material in which a resin core material 22 is embedded from the viewpoint of weight reduction.

しかし、こうした樹脂製の芯材２２を埋設したゴム様弾性材製のウエザーストリップ２０は、取付フランジ３に組付け後、高温下で放置すると、樹脂材およびゴム様弾性材が軟化するので、主としてコーナー部Ｃにおいて、グリップ部２１の上壁２１ｂがめくれ上がり（図３参照）、取付フランジ３に対する組付き性及びシール性と外観性が低下するといった問題が発生する。この傾向は、８０℃以上の高温状態で、より顕著になる。 However, since the weather strip 20 made of a rubber-like elastic material in which the resin core material 22 is embedded is attached to the mounting flange 3 and left at a high temperature, the resin material and the rubber-like elastic material soften mainly. In the corner portion C, the upper wall 21b of the grip portion 21 is turned up (see FIG. 3), and there is a problem that the assembling property, the sealing property, and the appearance property with respect to the mounting flange 3 are deteriorated. This tendency becomes more prominent at a high temperature of 80 ° C. or higher.

本発明はこうした問題に鑑み創案されたもので、自動車の取付フランジに組付けられ、樹脂製の芯材を埋設した断面コの字状のグリップ部を有するゴム様弾性材製のウエザーストリップにおいて、高温下においても、コーナー部で、取付フランジに対する組付き性及びシール性並びに外観性が低下することのない製品を提供することを課題とする。   The present invention was devised in view of such problems, and in a weather strip made of a rubber-like elastic material having a U-shaped cross-sectional grip portion embedded in a mounting flange of an automobile and embedded with a resin core material, It is an object of the present invention to provide a product that does not deteriorate the assembling property, the sealing property, and the appearance of the mounting flange at the corner portion even under high temperatures.

図１、図４および図５を参照して説明する。請求項１に記載の発明は、樹脂製の芯材１２を埋設し、底壁１１ａ、上壁１１ｂおよび下壁１１ｃを有する断面略コの字状で、自動車ボディ１のドア開口部２に沿って形成した取付フランジ３に組付くゴム様弾性材製のグリップ部１１と、前記上壁１１ｂの上面に一体設された中空シール部１３と、少なくとも、前記下壁１１ｃの先端部から、前記取付フランジ３に弾接すべく突設した組付リップ１４とを有するウエザーストリップにおいて、少なくともコーナー部Ｃにおいて、前記上壁１１ｂの先端部付近から前記底壁１１ａの略中間部または下部にわたって、断面直線状の略中間部分に前記取付けフランジ３の先端上角部が突き当たる折れ部１５ａを備え、前記取付フランジ３に押し潰されるブリッジ片１５を架設してなることを特徴とするものである。 This will be described with reference to FIGS. 1, 4 and 5. FIG. The invention according to claim 1 has a substantially U-shaped cross section having a bottom wall 11a, an upper wall 11b, and a lower wall 11c embedded in a resin core 12, and along the door opening 2 of the automobile body 1. The mounting portion 3 is made of a rubber-like elastic material grip 11 assembled to the mounting flange 3, a hollow seal portion 13 integrally provided on the upper surface of the upper wall 11b, and at least the tip of the lower wall 11c. In a weather strip having an assembly lip 14 projecting to elastically contact the flange 3, at least at a corner portion C, a straight cross section extends from the vicinity of the front end portion of the upper wall 11b to a substantially intermediate portion or lower portion of the bottom wall 11a. Jo of comprising a folding portion 15a substantially distal upper corner of the the intermediate section mounting flange 3 abuts, and characterized by being bridged the bridge piece 15 which Ru is crushed to the attachment flange 3 Is shall.

請求項１に記載の自動車用ウエザーストリップ１０は、少なくともコーナー部Ｃにおいて、グリップ部１１の上壁１１ｂの先端部付近から底壁１１ａの略中間部または下部にわたって、断面直線状の略中間部分に取付けフランジ３の先端上角部が突き当たる折れ部１５ａを備え、取付フランジ３に押し潰されるブリッジ片１５を架設したので、高温下において、樹脂材およびゴム様弾性材が軟化しても、当該コーナー部Ｃでの取付フランジ３に対する組付き性を強固に維持することができると共に、外観性を良好に保つことができる。 The weather strip 10 for an automobile according to claim 1 has an approximately intermediate portion having a linear cross section extending from the vicinity of the tip end portion of the upper wall 11b of the grip portion 11 to the approximately intermediate portion or the lower portion of the bottom wall 11a at least in the corner portion C. comprising a folding portion 15a front end upper corner portion of the mounting flange 3 abuts, since the erection of the bridge piece 15 Ru crushed to the mounting flange 3, at high temperatures, also a resin material and a rubber-like elastic material is softened, the The assembling property with respect to the mounting flange 3 at the corner portion C can be firmly maintained, and the appearance can be kept good.

すなわち、取付フランジ３にグリップ部１１を押し込んで組付けると、当該取付フランジ３の先端部が、グリップ部１１に設けたブリッジ片１５に、それを押し潰すようにして強く弾接する。これにより、ブリッジ片１５が上壁１１ｂの先端部を強く引っ張るため、当該先端部をはじめとする上壁１１ｂの全体は取付フランジ３の上面に弾接する。従って、上壁１１ｂのめくれ上がりが防止され、常温下では勿論のこと、高温下においても取付フランジ３に強く組付くことができる。また、めくれ上がりが防止されるので外観性を良好に維持することができる。   That is, when the grip portion 11 is pushed into the mounting flange 3 and assembled, the tip end portion of the mounting flange 3 is strongly elastically contacted with the bridge piece 15 provided on the grip portion 11 so as to crush it. As a result, the bridge piece 15 pulls the tip end portion of the upper wall 11 b strongly, so that the entire upper wall 11 b including the tip portion elastically contacts the upper surface of the mounting flange 3. Therefore, the upper wall 11b is prevented from being turned up, and can be firmly attached to the mounting flange 3 not only at room temperature but also at high temperature. Further, since the turning-up is prevented, the appearance can be kept good.

すなわち、グリップ部１１は、高温下においても、自動車ボディ１のドア開口部２に沿って形成された取付フランジ３に強く組付くことができ、中空シール部１３によってドアとのシール性を、コーナー部Ｃを含む全体にわたって良好に維持することができる。また、外観の見栄えも良好に保つことができる。なお、組付リップ１４が取付フランジ３に弾接するので、これによって、取付フランジ３に対する組付き性をさらに高めることができる。 That is , the grip portion 11 can be strongly assembled to the mounting flange 3 formed along the door opening 2 of the automobile body 1 even under high temperature, and the sealing performance with the door is improved by the hollow seal portion 13. It can maintain favorable over the whole including the part C. Also, the appearance can be kept good. In addition, since the assembly lip 14 is in elastic contact with the mounting flange 3, the assembly with respect to the mounting flange 3 can be further improved.

本発明に係る自動車用ウエザーストリップ１０の実施形態を、図１、図４および図５に示す。このウエザーストリップ１０は、自動車ボディ１のドア開口部２に沿って形成された取付フランジ３に組付けられるもので、ゴム様弾性材製のグリップ部１１、中空シール部１３、組付リップ１４および装飾リップ１６を備える。   An embodiment of an automobile weather strip 10 according to the present invention is shown in FIGS. 1, 4 and 5. The weather strip 10 is assembled to a mounting flange 3 formed along the door opening 2 of the automobile body 1, and includes a grip portion 11, a hollow seal portion 13, an assembly lip 14 and a rubber-like elastic material. A decorative lip 16 is provided.

ゴム様弾性材としては、ＥＰＤＭソリッドゴム，ＥＰＤＭスポンジゴム，熱可塑性エラストマー非発泡体，熱可塑性エラストマー発泡体等が挙げられるが、中でも中空を引っ張り易い点と、樹脂芯材と接着し難い点からＥＰＤＭソリッドゴムが好ましい。   Examples of rubber-like elastic materials include EPDM solid rubber, EPDM sponge rubber, thermoplastic elastomer non-foamed material, and thermoplastic elastomer foamed material. EPDM solid rubber is preferred.

グリップ部１１は、底壁１１ａ、上壁１１ｂおよび下壁１１ｃを有するＥＰＤＭ製で断面略コの字状で、内部に樹脂製の芯材１２を埋設している。中空シール部１３は、グリップ部１１の上壁１１ｂ上面に一体設されたゴム様弾性材製スポンジ体である。組付リップ１４は、グリップ部１１の下壁１１ｃの先端部から、取付フランジ３に弾接するように突設されている。なお、本実施形態における組付リップ１４は、下壁１１ｃから１本のみ突設されているが、本発明はこれに限定されるものではなく、複数突設することができる。また、装飾リップ１６は、底壁１１ａの下端部から、内装トリム４に当接するように垂下設されている。   The grip portion 11 is made of EPDM having a bottom wall 11a, an upper wall 11b, and a lower wall 11c, has a substantially U-shaped cross section, and has a resin core 12 embedded therein. The hollow seal portion 13 is a sponge body made of a rubber-like elastic material integrally provided on the upper surface of the upper wall 11b of the grip portion 11. The assembly lip 14 protrudes from the tip end portion of the lower wall 11c of the grip portion 11 so as to elastically contact the mounting flange 3. In addition, although the assembly | attachment lip 14 in this embodiment is protrudingly provided only one from the lower wall 11c, this invention is not limited to this, A plurality can be protrudingly provided. The decorative lip 16 is suspended from the lower end of the bottom wall 11a so as to contact the interior trim 4.

そして、湾曲部分であるコーナー部Ｃにおいて、グリップ部１１の上壁１１ｂの先端部付近から底壁１１ａの下部（中間よりやや下位）にわたって、取付フランジ３に押し潰されて上壁１１ｂを下方に引っ張るブリッジ片１５を一体的に架設している。   Then, in the corner portion C, which is a curved portion, the upper flange 11b is crushed downward from the vicinity of the tip of the upper wall 11b of the grip portion 11 to the lower portion of the bottom wall 11a (slightly lower than the middle) by the mounting flange 3. The pulling bridge piece 15 is integrally constructed.

なお、本実施形態では、ブリッジ片１５をコーナー部Ｃのみに設けているが、本発明はこれに限定されるものではなく、組付き性をより強化するために、直線部Ｓにも設けることができる。   In this embodiment, the bridge piece 15 is provided only at the corner portion C. However, the present invention is not limited to this, and the bridge piece 15 is also provided at the straight portion S in order to further enhance the assembling property. Can do.

本実施形態に係る自動車用ウエザーストリップ１０において、取付フランジ３にグリップ部１１を押し込んで組付けると、当該取付フランジ３の先端部がブリッジ片１５を押し潰しながら強く弾接する。これによって、ブリッジ片１５が上壁１１ｂの先端部を強く引っ張り、当該先端部は下方に引っ張られて取付フランジ３の上面に強く弾接するので、上壁１１ｂのめくれ上がりが防止される。そのため、グリップ部１１は、常温下では勿論のこと、高温下においても取付フランジ３に強固に組付くことができる。また、めくれ上がりが発生しないので、外観性も良好に保つことができる。   In the automotive weather strip 10 according to the present embodiment, when the grip portion 11 is pushed into the mounting flange 3 and assembled, the distal end portion of the mounting flange 3 makes a strong elastic contact while crushing the bridge piece 15. As a result, the bridge piece 15 pulls the tip of the upper wall 11b strongly, and the tip is pulled downward and elastically contacts the upper surface of the mounting flange 3, thereby preventing the upper wall 11b from turning up. Therefore, the grip portion 11 can be firmly assembled to the mounting flange 3 not only at room temperature but also at high temperature. Further, since no turning-up occurs, the appearance can be kept good.

なお、本実施形態では、ブリッジ片１５のほぼ中間部分に折れ部１５ａを設けている。これにより、取付フランジ３の先端上角部がこの折れ部１５ａに突き当たり、当該ブリッジ片１５を滑ることなく正確に押し潰して上壁１１ｂの先端部を引っ張る。そのため、上壁１１ｂは確実に下方に引っ張られて取付フランジ３の上面に強く弾接し、グリップ部１１の取付フランジ３に対する組付き性が、より確実に強化される。   In the present embodiment, a bent portion 15 a is provided at an approximately middle portion of the bridge piece 15. As a result, the upper corner of the front end of the mounting flange 3 abuts against the bent portion 15a, and the bridge piece 15 is accurately crushed without sliding to pull the front end of the upper wall 11b. Therefore, the upper wall 11b is reliably pulled downward and elastically contacts the upper surface of the mounting flange 3, and the assembling property of the grip portion 11 with respect to the mounting flange 3 is more reliably enhanced.

また、本実施形態に係るウエザーストリップ１０は、自動車ボディ１のドア開口部２の取付フランジ３に組付けているが、本発明はこれに限定されるものではなく、トランク開口部の取付フランジ３など、ドアを含めた他の部位にも取り付けることができる。また、ウエザーストリップ１０の形状は、少なくとも、グリップ部１１を有するものであれば良く、中空シール部１３や装飾リップ１６を持たないものでも良い。さらに、コーナー部Ｃは、本実施形態に示す部分に限定されない。   Further, the weather strip 10 according to this embodiment is assembled to the mounting flange 3 of the door opening 2 of the automobile body 1, but the present invention is not limited to this, and the mounting flange 3 of the trunk opening is not limited thereto. It can be attached to other parts including doors. Further, the weather strip 10 may have any shape as long as it has at least the grip portion 11 and may not have the hollow seal portion 13 or the decorative lip 16. Furthermore, the corner portion C is not limited to the portion shown in the present embodiment.

ウエザーストリップが取付けられる自動車を示す側面図である。It is a side view which shows the motor vehicle in which a weather strip is attached. 従来例に係るウエザーストリップを示す断面図である。It is sectional drawing which shows the weather strip which concerns on a prior art example. 図２に示すウエザーストリップを示すもので、図１のＸ−Ｘ線断面図である。FIG. 3 shows the weather strip shown in FIG. 2 and is a cross-sectional view taken along the line XX of FIG. 1. 本発明に係るウエザーストリップを示す断面図である。It is sectional drawing which shows the weather strip which concerns on this invention. 図４に示すウエザーストリップを示すもので、図１のＸ−Ｘ線断面図である。FIG. 5 shows the weather strip shown in FIG. 4 and is a cross-sectional view taken along line XX of FIG. 1.

１ 自動車ボディ
２ ドア開口部
３ 取付フランジ
４ 内装トリム
１０ ウエザーストリップ
１１ グリップ部
１１ａ 底壁
１１ｂ 上壁
１１ｃ 下壁
１２ 芯材
１３ 中空シール部
１４ 組付リップ
１５ ブリッジ片
１５ａ 折れ部
１６ 装飾リップ
２０ ウエザーストリップ
２１ グリップ部
２１ａ 底壁
２１ｂ 上壁
２１ｃ 下壁
２２ 芯材
２３ 中空シール部
Ｃ コーナー部
Ｓ 直線部 DESCRIPTION OF SYMBOLS 1 Automobile body 2 Door opening part 3 Mounting flange 4 Interior trim 10 Weather strip 11 Grip part 11a Bottom wall 11b Upper wall 11c Lower wall 12 Core material 13 Hollow seal part 14 Assembly lip 15 Bridge piece 15a Folding part 16 Decoration lip 20 Weather Strip 21 Grip part 21a Bottom wall 21b Upper wall 21c Lower wall 22 Core material 23 Hollow seal part C Corner part S Straight part

Claims (1)

樹脂製の芯材（１２）を埋設し，底壁（１１ａ），上壁（１１ｂ）および下壁（１１ｃ）を有する断面略コの字状で，自動車ボディ（１）のドア開口部（２）に沿って形成した取付フランジ（３）に組付くゴム様弾性材製のグリップ部（１１）と、前記上壁の上面に一体設された中空シール部（１３）と、少なくとも，前記下壁の先端部から，前記取付フランジに弾接すべく突設した組付リップ（１４）とを有するウエザーストリップにおいて、少なくともコーナー部（Ｃ）において，前記上壁の先端部付近から前記底壁（１１ａ）の略中間部または下部にわたって，断面直線状の略中間部分に前記取付けフランジの先端上角部が突き当たる折れ部（１５ａ）を備え、前記取付フランジに押し潰されるブリッジ片（１５）を架設してなることを特徴とする自動車用ウエザーストリップ。 A resin core material (12) is embedded, and has a bottom wall (11a), an upper wall (11b), and a lower wall (11c). ) Formed of a rubber-like elastic material that is assembled to the mounting flange (3), the hollow seal portion (13) integrally provided on the upper surface of the upper wall, and at least the lower wall In the weather strip having an assembly lip (14) projecting from the front end portion of the mounting flange so as to elastically contact the mounting flange, at least the corner portion (C) from the vicinity of the front end portion of the upper wall to the bottom wall (11a) over substantially the middle portion or the lower portion of) the distal upper corner abuts folded portion of the mounting flange includes a (15a), erection and crushed Ru bridge piece to the mounting flange (15) in a substantially middle portion of the cross-section linear What to do Weather strip for an automobile which is characterized.
JP2005213961A 2005-07-25 2005-07-25 Weather strip for automobile Expired - Fee Related JP4657844B2 (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008254720A (en) * 2007-03-15 2008-10-23 Toyoda Gosei Co Ltd Weatherstrip
US20080229670A1 (en) 2007-03-15 2008-09-25 Toyoda Gosei Co., Ltd. Weather strip
JP2009173245A (en) * 2008-01-28 2009-08-06 Nishikawa Rubber Co Ltd Opening trim
JP2009208624A (en) * 2008-03-04 2009-09-17 Nishikawa Rubber Co Ltd Opening trim

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195319A (en) * 1975-01-09 1976-08-20
JPS6034047U (en) * 1983-08-17 1985-03-08 東海興業株式会社 Automotive weather strip
JPH0458415U (en) * 1990-09-27 1992-05-19
JPH10203265A (en) * 1997-01-20 1998-08-04 Tokai Kogyo Kk Trim
JP2004322948A (en) * 2003-04-28 2004-11-18 Toyoda Gosei Co Ltd Opening trim weather strip for vehicle
JP2005041449A (en) * 2003-07-22 2005-02-17 Nishikawa Rubber Co Ltd Weather strip for automobile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195319A (en) * 1975-01-09 1976-08-20
JPS6034047U (en) * 1983-08-17 1985-03-08 東海興業株式会社 Automotive weather strip
JPH0458415U (en) * 1990-09-27 1992-05-19
JPH10203265A (en) * 1997-01-20 1998-08-04 Tokai Kogyo Kk Trim
JP2004322948A (en) * 2003-04-28 2004-11-18 Toyoda Gosei Co Ltd Opening trim weather strip for vehicle
JP2005041449A (en) * 2003-07-22 2005-02-17 Nishikawa Rubber Co Ltd Weather strip for automobile

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