JPH0986176A - Automotive weather strip - Google Patents
Automotive weather stripInfo
- Publication number
- JPH0986176A JPH0986176A JP7269410A JP26941095A JPH0986176A JP H0986176 A JPH0986176 A JP H0986176A JP 7269410 A JP7269410 A JP 7269410A JP 26941095 A JP26941095 A JP 26941095A JP H0986176 A JPH0986176 A JP H0986176A
- Authority
- JP
- Japan
- Prior art keywords
- weather strip
- flange
- trim portion
- trim
- resin layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Seal Device For Vehicle (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用ウエザースト
リップに関し、詳しくは車両のフランジに装着されるト
リム部の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for an automobile, and more particularly to a structure of a trim portion mounted on a flange of a vehicle.
【０００２】[0002]
【従来の技術】従来のウエザーストリップは図４に示す
如く、ＥＰＤＭスポンジ材の中空シール部６の基部に、
ＥＰＤＭソリッド材の断面Ｕ字状のトリム部１が一体成
形されている。該トリム部１は芯金を埋設し両側壁３、
３の内面に各々、車両のトランクやバックドアなどのフ
ランジＦを挟持する保持リップ９を突設している。2. Description of the Related Art As shown in FIG. 4, a conventional weather strip has a hollow seal portion 6 made of EPDM sponge material,
A trim section 1 of EPDM solid material having a U-shaped cross section is integrally formed. The trim portion 1 has a cored bar embedded therein and both side walls 3,
Retaining lips 9 for sandwiching a flange F of a vehicle trunk, a back door, or the like are provided on the inner surfaces of 3 respectively.
【０００３】[0003]
【発明が解決しようとする課題】ところが、車両への組
み付け時、上記トリム部１をフランジＦに挿入する際、
フランジＦの板厚が厚い部分では９上記保持リップに当
接して生じる摺動抵抗が、芯金２の挟持力も加わって大
きくなり、上記トリム部１のフランジＦへの挿入力が著
しく増大して作業性を悪くするという問題があった。そ
こで、本発明はかかる従来の課題に鑑みて、トリム部の
フランジへの挿入力を低減して作業性の向上を図った自
動車用ウエザーストリップを提供することを目的とす
る。However, when the trim portion 1 is inserted into the flange F at the time of assembling to the vehicle,
In a portion where the plate thickness of the flange F is large, 9 the sliding resistance generated by contacting the holding lip is increased by the clamping force of the core metal 2 being added, and the insertion force of the trim portion 1 into the flange F is significantly increased. There was a problem that workability was deteriorated. Therefore, in view of the conventional problems, it is an object of the present invention to provide a weather strip for an automobile, in which the force of inserting the trim portion into the flange is reduced to improve workability.
【０００４】[0004]
【課題を解決するための手段】かかる目的を達成するた
めに本発明の構成は、図１に示すように、断面Ｕ字状の
トリム部１の両側壁３、３の内面に各々、車両のフラン
ジＦを挟持する保持リップ４を突設した自動車用ウエザ
ーストリップＷにおいて、上記保持リップ４のトリム部
１開口側Ｏの先端部ｓを除く面に、ポリオレフィン系樹
脂層５を形成したものである。また、上記ポリオレフィ
ン系樹脂層５がウエザーストリップＷの押出し成形の
際、同時押出成形により形成されたものである。In order to achieve the above object, the structure of the present invention is, as shown in FIG. 1, formed on the inner surfaces of both side walls 3 and 3 of a trim portion 1 having a U-shaped cross section, respectively. In a weather strip W for an automobile having a holding lip 4 projecting a holding flange F, a polyolefin resin layer 5 is formed on a surface of the holding lip 4 excluding a tip portion s on an opening side O of the trim portion 1. . Further, the polyolefin resin layer 5 is formed by coextrusion molding when the weather strip W is extrusion molded.
【０００５】[0005]
【実施例】以下、本発明の実施例を図に基づいて詳細に
説明する。図１において、１は押出し成形されたウエザ
ーストリップＷの断面Ｕ字状のトリム部で、ＥＰＤＭソ
リッド材Ｓよりなり芯金２を埋設している。また、トリ
ム部１は両側壁３、３の内面に各々複数の保持リップ４
を突設している。そして、上記保持リップ４のトリム部
１開口側Ｏの先端部ｓを除く面に、摩擦抵抗の小さい皮
膜状のポリオレフィン系樹脂層５が、ウエザーストリッ
プＷの押出し成形の際に付着される。上記ポリオレフィ
ン系樹脂層５はポリエチレン樹脂、ポリプロピレン樹
脂、シラン架橋性ポリエチレン、超高分子量ポリエチレ
ン、ＥＶＡなどである。なお、トリム部１には、頂部に
ＥＰＤＭスポンジ材の中空シール部６が、側部にシール
リップ７、８、９が各々一体成形されている。Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a trim portion having a U-shaped cross section of an extruded weather strip W, in which a core metal 2 made of an EPDM solid material S is embedded. Further, the trim portion 1 has a plurality of retaining lips 4 on the inner surfaces of the side walls 3 and 3, respectively.
Is protruding. Then, a film-shaped polyolefin resin layer 5 having a small frictional resistance is attached to the surface of the holding lip 4 excluding the front end portion s on the opening side O of the trim portion 1 during extrusion molding of the weather strip W. The polyolefin resin layer 5 is made of polyethylene resin, polypropylene resin, silane crosslinkable polyethylene, ultra high molecular weight polyethylene, EVA or the like. The trim portion 1 is integrally formed with a hollow seal portion 6 made of EPDM sponge material on the top portion and seal lips 7, 8, 9 on the side portions.
【０００６】上記構成により図２に示す如く車両のフラ
ンジＦに、ウエザーストリップＷを組み付ける際、フラ
ンジＦがトリム部１に開口側Ｏから、先ず保持リップ４
の摩擦抵抗の小さいポリオレフィン系樹脂層５に当接し
ながら挿入されるため、摺動抵抗が小さく作業性が向上
する。また、組み付け後は図３に示す如く両保持リップ
４の先端部ｓがフランジＦに密接するため、保持リップ
４の保持力は従来同様に維持される。When the weather strip W is assembled to the flange F of the vehicle with the above structure as shown in FIG. 2, the flange F first comes into the trim portion 1 from the opening side O and then the holding lip 4 is formed.
Since it is inserted while being in contact with the polyolefin resin layer 5 having a small frictional resistance, the sliding resistance is small and the workability is improved. Further, after the assembling, as shown in FIG. 3, the tips s of both holding lips 4 come into close contact with the flange F, so that the holding force of the holding lips 4 is maintained as in the conventional case.
【０００７】[0007]
【発明の効果】以上説明したように本発明の自動車用ウ
エザーストリップは、トリム部の保持リップのトリム部
開口側の先端部を除く面に、摩擦抵抗の小さい皮膜状の
ポリオレフィン系樹脂層を同時押出し成形しているた
め、板厚が厚いフランジに対してもフランジへの組み付
け挿入時の摺動抵抗が小さくなり作業性が向上し、かつ
組み付け後上記保持リップの先端部がフランジに密接し
て、ウエザーストリップの保持力は従来同様に維持され
る。また、上記ポリエチレン材の付着がウエザーストリ
ップとの同時押出し成形により行われるため製造が容易
である。As described above, in the weather strip for an automobile of the present invention, a film-like polyolefin resin layer having a small frictional resistance is simultaneously formed on the surface of the holding lip of the trim portion excluding the tip end on the opening side of the trim portion. Since it is extrusion-molded, even for thick flanges, the sliding resistance at the time of assembling and inserting into the flange is small, improving workability, and the tip of the above-mentioned holding lip comes into close contact with the flange after assembly. , The retaining force of the weather strip is maintained as in the past. Further, the polyethylene material is attached by coextrusion with a weather strip, which facilitates production.
【図１】本発明の自動車用ウエザーストリップの断面図
である。FIG. 1 is a cross-sectional view of a weather strip for an automobile according to the present invention.
【図２】同上ウエザーストリップをフランジへ組み付け
始めの状態を示す断面図である。FIG. 2 is a cross-sectional view showing a state in which the weather strip is being assembled to a flange.
【図３】同上の組み付け終了時の状態を示す断面図であ
る。FIG. 3 is a cross-sectional view showing a state at the end of the above assembling.
【図４】従来の自動車用ウエザーストリップの断面図で
ある。FIG. 4 is a cross-sectional view of a conventional automotive weather strip.
１ トリム部 ３ 側壁 ４ 保持リップ ５ ポリオレフィン系樹脂層 Ｆ フランジ Ｏ トリム部の開口側 ｓ 保持リップの先端部 1 Trim part 3 Side wall 4 Holding lip 5 Polyolefin resin layer F Flange O Trim opening side s Holding lip tip
Claims (2)
各々、車両のフランジを挟持する保持リップを突設した
自動車用ウエザーストリップにおいて、上記保持リップ
のトリム部開口側の先端部を除く面に、ポリオレフィン
系樹脂層を形成したことを特徴とする自動車用ウエザー
ストリップ。1. A weather strip for an automobile, in which a retaining lip for sandwiching a flange of a vehicle is projectingly provided on inner surfaces of both side walls of a trim portion having a U-shaped cross section, and a tip portion of the retaining lip on the trim portion opening side is provided. A weather strip for automobiles, characterized in that a polyolefin resin layer is formed on the surface to be removed.
リップの押出し成形の際、同時押出成形により形成され
たことを特徴とする請求項１記載の自動車用ウエザース
トリップ。2. The weather strip for automobiles according to claim 1, wherein the polyolefin resin layer is formed by coextrusion during extrusion molding of the weather strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7269410A JPH0986176A (en) | 1995-09-21 | 1995-09-21 | Automotive weather strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7269410A JPH0986176A (en) | 1995-09-21 | 1995-09-21 | Automotive weather strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0986176A true JPH0986176A (en) | 1997-03-31 |
Family
ID=17472033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7269410A Pending JPH0986176A (en) | 1995-09-21 | 1995-09-21 | Automotive weather strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0986176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006213228A (en) * | 2005-02-04 | 2006-08-17 | Nishikawa Rubber Co Ltd | Weather strip, and its manufacturing method |
| CN101985293A (en) * | 2009-07-28 | 2011-03-16 | 常磐化学工业株式会社 | Extrusion molded product having core material |
-
1995
- 1995-09-21 JP JP7269410A patent/JPH0986176A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006213228A (en) * | 2005-02-04 | 2006-08-17 | Nishikawa Rubber Co Ltd | Weather strip, and its manufacturing method |
| CN101985293A (en) * | 2009-07-28 | 2011-03-16 | 常磐化学工业株式会社 | Extrusion molded product having core material |
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