JP4294410B2 - Weather strip for automobile - Google Patents

Weather strip for automobile Download PDF

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Publication number
JP4294410B2
JP4294410B2 JP2003271892A JP2003271892A JP4294410B2 JP 4294410 B2 JP4294410 B2 JP 4294410B2 JP 2003271892 A JP2003271892 A JP 2003271892A JP 2003271892 A JP2003271892 A JP 2003271892A JP 4294410 B2 JP4294410 B2 JP 4294410B2
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weather strip
bottom wall
wall
hollow seal
mounting base
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JP2005029054A (en
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保行 藤田
修司 来須
昇 佐久間
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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た自動車用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 for automobiles in which a resin core is embedded.

図１乃至図４を参照して説明する。従来、自動車ボディのドア開口部１に沿って設けたフランジ２には、通常、断面略Ｕ字状の取付基部２２と、当該取付基部２２に一体成形され、ドアパネル（ドアサッシュ）３に弾接する中空状の中空シール部２３とを有するウエザーストリップ２０が取付けられている。   This will be described with reference to FIGS. Conventionally, a flange 2 provided along a door opening 1 of an automobile body is usually integrally formed with a mounting base 22 having a substantially U-shaped cross section and the mounting base 22 and is elastically contacted with a door panel (door sash) 3. A weather strip 20 having a hollow seal 23 is attached.

このウエザーストリップ２０の取付基部２２には、一般に、フランジ２に対する十分な組付き力を確保するために、金属製で平板状の芯材２１が埋設されている。   In general, a flat plate-like core member 21 made of metal is embedded in the mounting base portion 22 of the weather strip 20 in order to ensure a sufficient assembling force for the flange 2.

この従来のウエザーストリップ２０は、金属製の芯材２１を埋設したことにより剛性が向上し、フランジ２に強固に組付けられる。しかし、特にルーフ部とセンターピラーとの間のコーナー部Ｒにおいては、この芯材２１の連結部２１ａを中心として湾曲されるので、中空シール部２３の内周側に皺Ｗや変形が生じ易い。そのため、シール性が低下したり、外観性が損なわれるといった問題が発生する（図４参照）。 The conventional weather strip 20 is improved in rigidity by embedding a metal core material 21 and is firmly assembled to the flange 2. However, in particular, the corner portion R between the roof portion and the center pillar is curved around the connecting portion 21a of the core member 21, so that wrinkles and deformation are likely to occur on the inner peripheral side of the hollow seal portion 23. . Therefore, the sealing property is lowered, a problem that appearance is said that impaired generated (see FIG. 4).

本発明はこうした問題に鑑み創案されたもので、コーナー部Ｒにおいて、中空シール部の内周側に皺や変形の発生しないウエザーストリップを提供することを課題とする。   The present invention has been devised in view of these problems, and an object of the present invention is to provide a weather strip that does not cause wrinkles or deformation on the inner peripheral side of the hollow seal portion at the corner portion R.

図１および図５乃至図７を参照して説明する。本発明は、自動車ボディのドア開口部１に沿って形成されたフランジ２に取付けられ、断面略Ｕ字状で、内部に底壁１１ａの両端部から左壁１１ｂおよび右壁１１ｃを立設した同じく断面略Ｕ字状で樹脂製の芯材１１を埋設した取付基部１２と、当該取付基部１２に一体成形され、ドアパネル３に弾接する中空シール部１３とを備えたウエザーストリップであって、前記芯材１１の底壁１１ａの一部または全体を前記左壁１１ｂおよび右壁１１ｃより肉厚とし、前記ドア開口部１のコーナー部Ｒに沿って湾曲した際に、該湾曲の中心が前記底壁１１ａの外表面中心部Ｘと該底壁の内面との中間に位置すべく設定してなるものである。 This will be described with reference to FIG. 1 and FIGS. The present invention is attached to a flange 2 formed along a door opening 1 of an automobile body, has a substantially U-shaped cross section, and has a left wall 11b and a right wall 11c erected from both ends of a bottom wall 11a inside. Similarly, a weather strip comprising a mounting base portion 12 having a substantially U-shaped cross section and a resin core 11 embedded therein, and a hollow seal portion 13 formed integrally with the mounting base portion 12 and elastically contacting the door panel 3, when part or all of the bottom wall 11a of the core member 11 is thicker than the left wall 11b and right wall 11c, curved along said corner portion R of the door opening 1, the center of the curvature the It is set so as to be positioned between the outer surface central portion X of the bottom wall 11a and the inner surface of the bottom wall.

この自動車用ウエザーストリップ１０は、取付基部１２に樹脂製の芯材１１を埋設し、その芯材１１の底壁１１ａを左壁１１ｂおよび右壁１１ｃより肉厚とし、コーナー部Ｒに沿って湾曲した際に、その湾曲の中心が芯材１１の外表面中心部Ｘと該底壁の内面との中間に位置するようにしたので、中空シール部１３の内周側に皺Ｗや変形が発生しない。 The automobile weather strip 10 has a resin core 11 embedded in a mounting base 12, the bottom wall 11 a of the core 11 is thicker than the left wall 11 b and the right wall 11 c, and is curved along a corner portion R. In this case, since the center of the curvature is located between the outer surface central portion X of the core member 11 and the inner surface of the bottom wall , the wrinkles W and deformation are formed on the inner peripheral side of the hollow seal portion 13. Does not occur.

すなわち、この湾曲の中心が、従来技術における湾曲の中心点Ｙより内側で、中空シール部１３からさらに離れた箇所に位置するので、湾曲時、中空シール部１３に作用する圧縮力を軽減することができる。従って、当該中空シール部１３は、皺や変形を来すことなくコーナー部Ｒに沿って円滑に湾曲される。これにより、コーナー部Ｒにおける中空シール部１３のシール性や外観性を向上させることができる。 That is, center of the this curvature, inside the center point Y of curvature in the prior art, since located further away portion from the hollow seal portion 13, upon bending, to reduce the compressive force acting on the hollow seal portion 13 be able to. Accordingly, the hollow seal portion 13 is smoothly curved along the corner portion R without causing wrinkles or deformation. Thereby, the sealing performance and appearance of the hollow seal portion 13 in the corner portion R can be improved.

また、芯材１１の底壁１１ａを肉厚としたことにより、当該芯材１１の剛性を高めることができるので、ウエザーストリップ１０のフランジ２に対する組付き力を向上させることができる。   Moreover, since the rigidity of the said core material 11 can be improved by making the bottom wall 11a of the core material 11 thick, the assembly | attachment force with respect to the flange 2 of the weather strip 10 can be improved.

なお、本発明における芯材１１は樹脂で形成したので、その底壁１１ａを容易かつ自在に肉厚に成形することができる。   In addition, since the core material 11 in this invention was formed with resin, the bottom wall 11a can be shape | molded easily and freely in thickness.

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および図５乃至図６に示す。このウエザーストリップ１０は、取付基部１２、中空シール部１３およびシールリップ部１４を備えている。取付基部１２はソリッドゴム製で、自動車ボディのドア開口部１に沿って形成されたフランジ２に取付けられるもので、断面略Ｕ字状である。この取付基部１２には、底壁１１ａの両端部から左壁１１ｂおよび右壁１１ｃを立設した同じく断面略Ｕ字状で樹脂製の芯材１１を埋設している。   An embodiment of an automobile weather strip 10 according to the present invention is shown in FIGS. 1 and 5 to 6. The weather strip 10 includes an attachment base 12, a hollow seal portion 13, and a seal lip portion 14. The attachment base 12 is made of solid rubber and is attached to a flange 2 formed along the door opening 1 of the automobile body, and has a substantially U-shaped cross section. The attachment base 12 is embedded with a resin core 11 having a substantially U-shaped cross section in which a left wall 11b and a right wall 11c are erected from both ends of the bottom wall 11a.

中空シール部１３はスポンジゴム製で、取付基部１２に一体成形され、ドアパネル３に弾接してドアとボディとの間のシール性を確保する。また、シールリップ部はソリッドゴム製で、その先端部が内装トリム４の端部に当接して覆い隠し、見栄えの向上を図っている。   The hollow seal portion 13 is made of sponge rubber and is integrally formed with the mounting base portion 12 and elastically contacts the door panel 3 to ensure a sealing property between the door and the body. Further, the seal lip portion is made of solid rubber, and its front end portion is in contact with and concealed with the end portion of the interior trim 4 to improve the appearance.

そして、芯材１１の底壁１１ａのほぼ半分を左壁１１ｂおよび右壁１１ｃより２〜３倍程度肉厚とし、ウエザーストリップ１０を、ドア開口部１のコーナー部Ｒに沿って湾曲した際に、その湾曲の中心が底壁１１ａの外表面中心部Ｘと該底壁の内面との中間に位置するように設定している。 When almost half of the bottom wall 11a of the core 11 is about 2-3 times thicker than the left wall 11b and the right wall 11c, the weather strip 10 is curved along the corner portion R of the door opening 1 In addition, the center of the curvature is set so as to be located between the outer surface center portion X of the bottom wall 11a and the inner surface of the bottom wall.

これにより、湾曲の中心が、従来技術の湾曲の中心Ｙと比較して、ドア開口部１の内方寄りで中空シール部１３よりさらに離れた箇所に位置させることができるので、湾曲時に中空シール部１３に作用する圧縮力を軽減することができる。従って、中空シール部１３の内周側に皺Ｗや変形が発生せず、シール性や外観性を高めることができる。 Thus, center of the curvature, as compared to heart Y in the curvature of the prior art, since it is possible to located further away portion from the hollow seal member 13 at the inner side of the door opening 1, at curved The compressive force acting on the hollow seal portion 13 can be reduced. Therefore, no wrinkles W or deformation occurs on the inner peripheral side of the hollow seal portion 13, and the sealing performance and appearance can be improved.

なお、芯材１１の形状は上記実施形態のものに限定されるものではなく、例えば、図７に示すように、底壁１１ａのほぼ全体を肉厚に設定したものでも良い。   In addition, the shape of the core material 11 is not limited to the thing of the said embodiment, For example, as shown in FIG. 7, what set the substantially whole bottom wall 11a to thickness may be sufficient.

本発明に係る自動車用ウエザーストリップは、断面略Ｕ字状の取付基部１２と中空シール部１３を有するものに適用することができるものであり、自動車ボディのドア開口部への使用に限らず、サンルーフ部やトランク部などへの使用も可能である。   The automotive weather strip according to the present invention can be applied to a mounting base portion 12 having a substantially U-shaped cross section and a hollow seal portion 13, and is not limited to use in a door opening of an automobile body, It can also be used for sunroofs and trunks.

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に埋設されている金属製の芯材を示す展開平面図である。It is an expansion | deployment top view which shows the metal core materials embed | buried under the weather strip which concerns on a prior art example. 従来例に係るウエザーストリップを示すもので、図１におけるＩ−Ｉ線断面図である。FIG. 2 shows a weather strip according to a conventional example, and is a cross-sectional view taken along line II in FIG. 1. 従来例に係るウエザーストリップを示す概略斜視図である。It is a schematic perspective view which shows the weather strip which concerns on a prior art example. 本発明に係るウエザーストリップの実施形態を示すもので、図１のＩ−Ｉ線断面図である。1 shows an embodiment of a weather strip according to the present invention, and is a cross-sectional view taken along the line II of FIG. 本発明に係るウエザーストリップに埋設される樹脂製芯材の実施形態を示す部分斜視図である。It is a fragmentary perspective view which shows embodiment of the resin-made core materials embed | buried under the weather strip which concerns on this invention. 本発明に係るウエザーストリップに埋設される樹脂製芯材の他の実施形態を示す部分斜視図である。It is a fragmentary perspective view which shows other embodiment of the resin-made core materials embed | buried under the weather strip which concerns on this invention.

１ ドア開口部
２ フランジ
３ ドアパネル
４ 内装トリム
１０ ウエザーストリップ
１１ 芯材（樹脂製）
１１ａ 底壁
１１ｂ 左壁
１１ｃ 右壁
１２ 取付基部
１３ 中空シール部
１４ シールリップ
２０ ウエザーストリップ
２１ 芯材（金属製）
２１ａ 連結部
２２ 取付基部
２３ 中空シール部
Ｘ 底壁の外表面中心部
Ｙ 従来の湾曲の中心点
Ｒ コーナー部
Ｗ 皺 DESCRIPTION OF SYMBOLS 1 Door opening part 2 Flange 3 Door panel 4 Interior trim 10 Weather strip 11 Core material (made of resin)
11a Bottom wall 11b Left wall 11c Right wall 12 Mounting base 13 Hollow seal part 14 Seal lip 20 Weather strip 21 Core material (made of metal)
21a Connecting part 22 Mounting base 23 Hollow seal part X Center part of outer surface of bottom wall Y Center point of conventional curve R Corner part W

Claims (1)

自動車ボディのドア開口部（１）に沿って形成されたフランジ（２）に取付けられ，断面略Ｕ字状で，内部に底壁（１１ａ）の両端部から左壁（１１ｂ）および右壁（１１ｃ）を立設した同じく断面略Ｕ字状で樹脂製の芯材（１１）を埋設した取付基部（１２）と，該取付基部に一体成形され，ドアパネル（３）に弾接する中空シール部（１３）とを備えたウエザーストリップであって、
前記芯材の底壁の一部または全体を前記左壁および右壁より肉厚とし，前記ドア開口部のコーナー部（Ｒ）に沿って湾曲した際に，該湾曲の中心が前記底壁の外表面中心部（Ｘ）と該底壁の内面との中間に位置すべく設定してなる自動車用ウエザーストリップ。 It is attached to a flange (2) formed along the door opening (1) of the automobile body, has a substantially U-shaped cross section, and from the both ends of the bottom wall (11a) to the left wall (11b) and the right wall ( 11c), a mounting base portion (12) having a substantially U-shaped cross section and a resin core (11) embedded therein, and a hollow seal portion integrally formed with the mounting base portion and elastically contacting the door panel (3) ( 13) a weatherstrip comprising:
Some or all of the bottom wall of the core material and wall thickness than the left wall and right wall, when the curved along the corner portion of the door opening (R), the center of the curvature said bottom wall A weather strip for automobiles, which is set so as to be positioned between the center portion (X) of the outer surface of the base material and the inner surface of the bottom wall .
JP2003271892A 2003-07-08 2003-07-08 Weather strip for automobile Expired - Lifetime JP4294410B2 (en)

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JP4294410B2 true JP4294410B2 (en) 2009-07-15

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4697590B2 (en) * 2005-06-20 2011-06-08 トキワケミカル工業株式会社 Molding method for extrusion molding of synthetic resin core material
JP5145025B2 (en) * 2007-12-26 2013-02-13 西川ゴム工業株式会社 Automotive weatherstrip
EP3392439B1 (en) * 2017-04-21 2019-06-26 C.R.F. Società Consortile per Azioni Sealing for motor-vehicles with integrated anti-pinching system

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