JP4672477B2 - Manufacturing method of weather strip for automobile - Google Patents

Manufacturing method of weather strip for automobile Download PDF

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JP4672477B2
JP4672477B2 JP2005215235A JP2005215235A JP4672477B2 JP 4672477 B2 JP4672477 B2 JP 4672477B2 JP 2005215235 A JP2005215235 A JP 2005215235A JP 2005215235 A JP2005215235 A JP 2005215235A JP 4672477 B2 JP4672477 B2 JP 4672477B2
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core material
weather strip
unit
resin film
embedded
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JP2007030646A (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、断面略Ｕ字状の組付部に、樹脂製の芯材を埋設したゴム製の自動車用ウエザーストリップの製造方法に関するものである。 The present invention relates to a method for manufacturing a rubber automotive weather strip in which a resin core material is embedded in an assembly portion having a substantially U-shaped cross section.

図１乃至図３を参照して説明する。自動車のボディに形成されたドア開口部１に沿って設けられた取付フランジ２には、ドアとのシール性を確保するためにウエザーストリップ２０が組付けられている。近年、このウエザーストリップ２０は、成形性、耐候性、耐熱性などを考慮してＥＰＤＭ（エチレンプロピレンゴム）で形成され、また、その断面略Ｕ字状の組付部２１には、軽量化を考慮して樹脂製の芯材２２が埋設されている。 This will be described with reference to FIGS. A weather strip 20 is assembled to the mounting flange 2 provided along the door opening 1 formed in the body of the automobile in order to ensure sealing performance with the door. In recent years, the weather strip 20 is formed of EPDM (ethylene propylene rubber) in consideration of moldability, weather resistance, heat resistance, and the like, and the assembly portion 21 having a substantially U-shaped cross section has been reduced in weight. In consideration, a resin core material 22 is embedded.

この従来の樹脂製芯材２２を埋設したゴム製のウエザーストリップ２０は、押出成形によって形成されるが、芯材２２を、押出機に連続して送り込む必要があることから、それを構成する複数のユニット部２３を、その背面部に形成した連結部２４で連結している。 The rubber weather strip 20 in which the conventional resin core material 22 is embedded is formed by extrusion molding. However, since the core material 22 needs to be continuously fed into the extruder, a plurality of components constituting the core is formed. These unit portions 23 are connected by a connecting portion 24 formed on the back surface portion thereof.

従って、押出成形後においても、樹脂製の芯材２２は、その一部を連結したままの状態で組付部２１に埋設された状態にある。そのため、コーナー部Ｃにおいてウエザーストリップ２０を長手方向に湾曲状に折曲げなければならない場合、その折曲げ作業が極めて厄介であり、また、コーナー部Ｃに正確に追従させることが困難であるといった問題がある。ちなみに、金属製の芯材の場合は、押出成形後に、繰り返し折曲げて疲労破断によって連結部を切断することができるが、樹脂製の芯材では、その材質から、そうした手段によって連結部を破断することができない。 Accordingly, even after the extrusion molding, the resin core material 22 is in a state of being embedded in the assembly portion 21 with a part thereof being connected. Therefore, when the weather strip 20 must be bent in the longitudinal direction at the corner portion C, the bending operation is extremely troublesome, and it is difficult to accurately follow the corner portion C. There is. By the way, in the case of a metal core material, after the extrusion molding, it is possible to repeatedly bend and cut the connection part by fatigue fracture, but in the case of a resin core material, the connection part is broken by such means from the material. Can not do it.

本発明はこうした問題に鑑み創案されたもので、長手方向の折曲げ成形性に優れ、コーナー部にも容易かつ正確に追従することのできる、樹脂製の芯材を埋設したゴム製のウエザーストリップの製造方法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 is a rubber weather strip embedded with a resin core material, which has excellent bending properties in the longitudinal direction and can easily and accurately follow corner portions. It is an object of the present invention to provide a manufacturing method of a tape .

図１および図４乃至図９を参照して説明する。請求項１に記載の発明は、少なくとも断面略Ｕ字状の組付部１１を有し、当該組付部１１に樹脂製の芯材１２を埋設したゴム製の自動車用ウエザーストリップ１０を成形する方法であって、前記芯材１２を構成する複数のユニット部１３を、肉細の連結部１４で連結した状態で押出成形または打抜成形し、前記芯材１２の各ユニット部１３を樹脂フィルム１５を固着して、芯材１２が押出成形時に作用する長手方向の引っ張り力に充分に耐えることができるように連結し、前記芯材１２を、その一部または全ての連結部１４を切断した後、押出機３に送って前記組付部１１に埋設し、前記ウエザーストリップ１０を加硫炉４に送り、当該加硫炉４の熱で前記樹脂フィルム１５を溶融し、前記芯材１２の一部または全てのユニット部１３を独立させてなることを特徴とするものである。 This will be described with reference to FIG. 1 and FIGS. According to the first aspect of the present invention, a rubber automotive weather strip 10 having at least an assembly part 11 having a substantially U-shaped cross section and having a resin core 12 embedded in the assembly part 11 is formed. It is a method, Comprising: The unit part 13 which comprises the said core material 12 is extrusion-molded or stamped in the state connected with the thin connection part 14, Each unit part 13 of the said core material 12 is a resin film. 15 is fixed so that the core material 12 can sufficiently withstand the tensile force in the longitudinal direction acting at the time of extrusion molding, and the core material 12 is cut at a part or all of the connecting portions 14. Then, it is sent to the extruder 3 and embedded in the assembly part 11, the weather strip 10 is sent to the vulcanizing furnace 4, the resin film 15 is melted by the heat of the vulcanizing furnace 4, and the core material 12 Some or all unit parts 13 are independent Were those characterized by comprising.

請求項２に記載の発明は、少なくとも断面略Ｕ字状の組付部１１を有し、当該組付部１１に樹脂製の芯材１２を埋設したゴム製の自動車用ウエザーストリップ１０を成形する方法であって、前記芯材１２を構成する複数のユニット部１３を、肉細の連結部１４で連結した状態で押出成形または打抜成形し、前記芯材１２の各ユニット部１３を樹脂フィルム１５を固着して連結し、前記芯材１２を押出機３に送って、前記連結部１４を露出した状態で前記組付部１１に埋設し、前記ウエザーストリップ１０を加硫炉４に送り、当該加硫炉４の熱で前記樹脂フィルム１５を溶融し、前記芯材１２の一部または全ての連結部１４を切断して、一部または全てのユニット部１３を独立させてなることを特徴とするものである。 According to the second aspect of the present invention, a rubber automotive weather strip 10 having at least an assembly part 11 having a substantially U-shaped cross section and having a resin core 12 embedded in the assembly part 11 is formed. It is a method, Comprising: The unit part 13 which comprises the said core material 12 is extrusion-molded or stamped in the state connected with the thin connection part 14, Each unit part 13 of the said core material 12 is a resin film. 15 is fixed and connected, the core material 12 is sent to the extruder 3, the connecting portion 14 is exposed and embedded in the assembling portion 11, and the weather strip 10 is sent to the vulcanizing furnace 4, The resin film 15 is melted by the heat of the vulcanizing furnace 4, a part or all of the connecting parts 14 of the core material 12 are cut, and a part or all of the unit parts 13 are made independent. It is what.

請求項１に記載の自動車用ウエザーストリップの製造方法は、芯材１２を、その連結部１４を切断した後に押出機３に送るので、押出成形後に各ユニット部１３を独立させることができる。また、芯材１２は、連結部１４が切断された後も樹脂フィルム１５によって連結されているので、各ユニット部１３を離脱させることなく連続して押出機３に送ることができる。この樹脂フィルム１５は、芯材１２が押出成形時に作用する長手方向の引っ張り力に充分に耐えることができるように固着したものである。 In the method for manufacturing a weather strip for an automobile according to the first aspect , the core member 12 is sent to the extruder 3 after the connecting portion 14 is cut, so that each unit portion 13 can be made independent after extrusion. Moreover, since the core material 12 is connected by the resin film 15 even after the connecting portion 14 is cut, it can be continuously sent to the extruder 3 without detaching the unit portions 13. This resin film 15 is fixed so that the core material 12 can sufficiently withstand the tensile force in the longitudinal direction acting during extrusion molding.

なお、樹脂フィルム１５の固着は、各ユニット部１３が連結部１４によって連結されている間に行うので、その作業が容易である。また、樹脂フィルム１５は、加硫炉４内の熱で自然に溶融させるので、加硫後は消滅しており、各ユニット部１３を完全に独立させることができる。これにより、折曲げ成形が容易で、コーナー部Ｃにも容易に追従して正確に組付くことのできる、樹脂製の芯材１２を埋設したゴム製のウエザーストリップ１０を提供することができる。 Since the resin film 15 is fixed while the unit parts 13 are connected by the connecting part 14, the work is easy. Further, since the resin film 15 is naturally melted by the heat in the vulcanizing furnace 4, it disappears after vulcanization, and each unit portion 13 can be completely independent. Accordingly, it is possible to provide the rubber weather strip 10 in which the resin core material 12 is embedded, which is easy to be bent and can be easily followed and accurately assembled to the corner portion C.

請求項２に記載の自動車用ウエザーストリップの製造方法は、請求項１に記載の発明と同様に、芯材１２は押出成形後に各ユニット部１３を独立させることができる。また、芯材１２は、押出成形時に、連結部１４と樹脂フィルム１５の両方によって連結されているので、各ユニット部１３を、より安定姿勢で連続した状態で押出機３に送ることができる。また、連結部１４は、押出成形後に組付部１１から露出しているので、組付部１１を損傷することなく容易に切断することができる。また、樹脂フィルム１５は、加硫炉４内の熱で自然に溶融させるので、加硫後は消滅しており、各ユニット部１３を完全に独立させることができる。これにより、折曲げ成形が容易で、コーナー部Ｃにも容易に追従して正確に組付くことのできる、樹脂製の芯材１２を埋設したゴム製のウエザーストリップ１０を提供することができる。 In the automobile weather strip manufacturing method according to the second aspect of the present invention, as in the case of the first aspect of the invention, the core member 12 can make each unit portion 13 independent after extrusion . Moreover, since the core material 12 is connected by both the connection part 14 and the resin film 15 at the time of extrusion molding, each unit part 13 can be sent to the extruder 3 in the more continuous state. Moreover, since the connection part 14 is exposed from the assembly part 11 after extrusion molding, it can cut | disconnect easily, without damaging the assembly part 11. FIG. Further, since the resin film 15 is naturally melted by the heat in the vulcanizing furnace 4, it disappears after vulcanization, and each unit portion 13 can be completely independent. Accordingly, it is possible to provide the rubber weather strip 10 in which the resin core material 12 is embedded, which is easy to be bent and can be easily followed and accurately assembled to the corner portion C.

本発明に係る自動車用ウエザーストリップ１０を、図１および図４乃至図８に示す。また、図９に、製造装置の概略構成図を示す。これは、自動車ボディのドア開口部１に沿って形成された取付フランジ２に組付けられるＥＰＤＭ（エチレンプロピレンゴム）製で、樹脂製の芯材１２を埋設した断面略Ｕ字状の組付部１１と、その組付部１１に一体設されたドアに弾接する中空シール部１６と、組付部１１の内面から突設され、取付フランジ２に組付く組付リップ１７と、組付部１１の外面から突設され、内装トリムに弾接する装飾リップ１８とで構成されている。また、このウエザーストリップ１０は、押出成形によって形成され、かつ、芯材１２を構成する複数のユニット部１３の全てが独立している。 A weather strip 10 for an automobile according to the present invention is shown in FIGS. 1 and 4 to 8. FIG. 9 shows a schematic configuration diagram of the manufacturing apparatus. This is an assembly part made of EPDM (ethylene propylene rubber), which is assembled to a mounting flange 2 formed along the door opening 1 of the automobile body, and having a substantially U-shaped cross section in which a resin core 12 is embedded. 11, a hollow seal portion 16 that elastically contacts a door integrally provided in the assembly portion 11, an assembly lip 17 that projects from the inner surface of the assembly portion 11 and is assembled to the mounting flange 2, and the assembly portion 11. And a decorative lip 18 that elastically contacts the interior trim. Further, the weather strip 10 is formed by extrusion molding, and all of the plurality of unit portions 13 constituting the core material 12 are independent.

この自動車用ウエザーストリップ１０は、本発明に係る製造方法によって形成されたものである。すなわち、この製造方法では、まず、芯材１２を構成する複数のユニット部１３を、肉細の連結部１４で連結した状態で押出成形（または打抜成形）する。次に、芯材１２の各ユニット部１３を樹脂フィルム１５で固着して連結する。この樹脂フィルム１５の固着は、ユニット部１３が、連結部１４で連結された状態にあるので、容易に行うことができる。なお、樹脂フィルム１５は、図５に示すように、芯材１２の外面全体を覆った状態で固着しても良いし、図６および図７に示すように、部分的に覆った状態で固着しても良い。 The automobile weather strip 10 is formed by the manufacturing method according to the present invention. That is, in this manufacturing method, first, a plurality of unit parts 13 constituting the core material 12 are extruded (or punched) in a state where the unit parts 13 are connected by the thin connecting parts 14. Next, each unit part 13 of the core material 12 is fixed and connected by the resin film 15. The fixing of the resin film 15 can be easily performed because the unit portion 13 is connected by the connecting portion 14. The resin film 15 may be fixed in a state of covering the entire outer surface of the core material 12 as shown in FIG. 5, or may be fixed in a state of being partially covered as shown in FIGS. You may do it.

続いて、芯材１２を、その全ての連結部１４を切断した後、図９に示すように、押出機３に送って押出成形されるウエザーストリップ１０の組付部１１に埋設する。そして、押出成形後、ウエザーストリップ１０を引取機５で引き取りながら加硫炉４に送り、その加硫炉４内でＥＰＤＭを加硫すると共に、樹脂フィルム１５を溶融する。これによって、芯材１２の全てのユニット部１３を独立させる。 Subsequently, after cutting all of the connecting portions 14, the core material 12 is embedded in the assembling portion 11 of the weather strip 10 that is sent to the extruder 3 and extruded as shown in FIG. 9. Then, after extrusion, the weather strip 10 is sent to the vulcanizing furnace 4 while being pulled by the take-up machine 5, and the EPDM is vulcanized in the vulcanizing furnace 4 and the resin film 15 is melted. Thereby, all the unit parts 13 of the core material 12 are made independent.

なお、連結部１４はその全てを切断しても良いし、コーナー部Ｃに組付ける部分の連結部１４のみを切断しても良い。また、この樹脂フィルム１５は、通常、加硫炉の加硫温度が２００℃弱であることから、融点が１５０℃以下のもの（例えば、ポリエチレンフィルム）を使用するのが好ましい。 In addition, all of the connection part 14 may be cut | disconnected, and only the connection part 14 of the part assembled | attached to the corner part C may be cut | disconnected. Moreover, since this resin film 15 usually has a vulcanization temperature of less than 200 ° C. in the vulcanizing furnace, it is preferable to use a resin film having a melting point of 150 ° C. or less (for example, a polyethylene film).

なお、本実施形態におけるウエザーストリップ１０の連結部１４は、芯材１２の先端部のみに形成し、組付部１１から露出するようにしているが、本発明はこれに限定されるものではなく、芯材１２の中間部に形成することもできるし、また、その数は二つ以上であっても良い。 In addition, although the connection part 14 of the weather strip 10 in this embodiment is formed only in the front-end | tip part of the core material 12, and is exposed from the assembly | attachment part 11, this invention is not limited to this. Further, it may be formed in the middle part of the core material 12, and the number thereof may be two or more.

また、連結部１４を芯材１２の先端部のみに形成し、組付部１１から露出させる場合には、次のようにして製造することができる。まず、芯材１２を構成する複数のユニット部１３を、肉細の連結部１４で連結した状態で押出成形（または打抜成形）する。次に、芯材１２の各ユニット部１３を樹脂フィルム１５で固着して連結する。続いて、芯材１２を押出機３に送って、連結部１４を露出した状態で組付部１１に埋設する。次に、ウエザーストリップ１０を加硫炉４に送り、当該加硫炉４の熱で前記樹脂フィルム１５を溶融する。そして、加硫後、組付部１１から露出している連結部１４を切断して、各ユニット部１３を独立させる。 Moreover, when the connection part 14 is formed only in the front-end | tip part of the core material 12, and is exposed from the assembly | attachment part 11, it can manufacture as follows. First, a plurality of unit parts 13 constituting the core material 12 are extruded (or punched) in a state where the unit parts 13 are connected by a thin connecting part 14. Next, each unit part 13 of the core material 12 is fixed and connected by the resin film 15. Subsequently, the core material 12 is sent to the extruder 3 and embedded in the assembling part 11 with the connecting part 14 exposed. Next, the weather strip 10 is sent to the vulcanizing furnace 4, and the resin film 15 is melted by the heat of the vulcanizing furnace 4. Then, after vulcanization, the connecting portion 14 exposed from the assembling portion 11 is cut to make each unit portion 13 independent.

こうして製造した本実施形態に係る自動車用ウエザーストリップ１０は、組付部１１に埋設した芯材１２を構成する複数のユニット部１３がそれぞれ独立しているので、コーナー部Ｃに対応して長手方向に容易に折曲げることができ、当該コーナー部Ｃに正確に追従させて組付けることができる。 In the automobile weather strip 10 according to this embodiment manufactured in this way, since the plurality of unit parts 13 constituting the core material 12 embedded in the assembling part 11 are independent from each other, the longitudinal direction corresponds to the corner part C. Can be easily bent, and can be assembled by accurately following the corner portion C.

なお、本発明に係る自動車用ウエザーストリップ１０は、自動車ボディに形成されたドア開口部１の取付フランジ２のみでなく、例えば、トランク部分など、他の取付フランジにも組付けることができる。 The automobile weather strip 10 according to the present invention can be assembled not only to the mounting flange 2 of the door opening 1 formed in the automobile body but also to other mounting flanges such as a trunk portion.

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もので、図１のＸ−Ｘ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 XX of FIG. 図２に示すウエザーストリップに埋設される樹脂製の芯材を示す斜視図である。It is a perspective view which shows the resin-made core materials embed | buried under the weather strip shown in FIG. 本発明に係る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。 The weather strip which concerns on this invention is shown, and it is the XX sectional view taken on the line of FIG. 図４に示すウエザーストリップに埋設される樹脂製芯材の一態様を示す斜視図である。It is a perspective view which shows the one aspect | mode of the resin-made core materials embed | buried under the weather strip shown in FIG. 図４に示すウエザーストリップに埋設される樹脂製芯材の他の態様を示す斜視図である。It is a perspective view which shows the other aspect of the resin-made core materials embed | buried under the weather strip shown in FIG. 図４に示すウエザーストリップに埋設される樹脂製の芯材のさらに他の態様を示す斜視図である。It is a perspective view which shows the other aspect of the resin-made core materials embed | buried under the weather strip shown in FIG. 図５に示す芯材の正面図である（樹脂フィルムを除く）。It is a front view of the core material shown in FIG. 5 (except for the resin film). 本発明に係る自動車用ウエザーストリップの製造方法に使用する製造装置を示す概略側面図である。It is a schematic side view which shows the manufacturing apparatus used for the manufacturing method of the weather strip for motor vehicles based on this invention.

１ ドア開口部
２ 取付フランジ
３ 押出機
４ 加硫炉
５ 引取機
１０ 自動車用ウエザーストリップ
１１ 組付部
１２ 芯材
１３ ユニット部
１４ 連結部
１５ 樹脂フィルム
１６ 中空シール部
１７ 組付リップ
１８ 装飾リップ
２０ 自動車用ウエザーストリップ
２１ 組付部
２２ 芯材
２３ ユニット部
２４ 連結部
Ｃ コーナー部 DESCRIPTION OF SYMBOLS 1 Door opening part 2 Mounting flange 3 Extruder 4 Vulcanization furnace 5 Take-out machine 10 Weather strip 11 for automobiles 11 Assembly part 12 Core material 13 Unit part 14 Connection part 15 Resin film 16 Hollow seal part 17 Assembly lip 18 Decoration lip 20 Weather strip for automobile 21 Assembly part 22 Core material 23 Unit part 24 Connection part C Corner part

Claims (2)

少なくとも断面略Ｕ字状の組付部（１１）を有し，該組付部に樹脂製の芯材（１２）を埋設したゴム製の自動車用ウエザーストリップ（１０）を成形する方法であって、前記芯材を構成する複数のユニット部（１３）を，肉細の連結部（１４）で連結した状態で押出成形または打抜成形し、前記芯材の各ユニット部を樹脂フィルム（１５）を固着して、芯材１２が押出成形時に作用する長手方向の引っ張り力に充分に耐えることができるように連結し、前記芯材を，その一部または全ての連結部を切断した後，押出機（３）に送って前記組付部に埋設し、前記ウエザーストリップを加硫炉（４）に送り，該加硫炉の熱で前記樹脂フィルムを溶融し，前記芯材の一部または全てのユニット部を独立させてなることを特徴とする自動車用ウエザーストリップの製造方法。 A method of molding a rubber automotive weather strip (10) having at least an assembly part (11) having a substantially U-shaped cross section, and a resin core material (12) embedded in the assembly part. The plurality of unit parts (13) constituting the core material are extruded or punched in a state where the unit parts (13) are connected by a thin connecting part (14), and each unit part of the core material is resin film (15). And the core material 12 is connected so that it can sufficiently withstand the longitudinal tensile force acting during extrusion, and the core material is cut out of a part or all of the connection parts, and then extruded. Sent to a machine (3) and embedded in the assembly section, the weather strip was sent to a vulcanizing furnace (4), the resin film was melted by the heat of the vulcanizing furnace, and part or all of the core material An automotive weather characterized by having the unit part of Method of manufacturing a trip. 少なくとも断面略Ｕ字状の組付部（１１）を有し，該組付部に樹脂製の芯材（１２）を埋設したゴム製の自動車用ウエザーストリップ（１０）を成形する方法であって、前記芯材を構成する複数のユニット部（１３）を，肉細の連結部（１４）で連結した状態で押出成形または打抜成形し、前記芯材の各ユニット部を樹脂フィルム（１５）を固着して連結し、前記芯材を押出機（３）に送って，前記連結部を露出した状態で前記組付部に埋設し、前記ウエザーストリップを加硫炉（４）に送り，該加硫炉の熱で前記樹脂フィルムを溶融し、前記芯材の一部または全ての連結部を切断して，一部または全てのユニット部を独立させてなることを特徴とする自動車用ウエザーストリップの製造方法。 A method of molding a rubber automotive weather strip (10) having at least an assembly part (11) having a substantially U-shaped cross section, and a resin core material (12) embedded in the assembly part. The plurality of unit parts (13) constituting the core material are extruded or punched in a state where the unit parts (13) are connected by a thin connecting part (14), and each unit part of the core material is resin film (15). The core material is sent to an extruder (3), embedded in the assembling part with the connecting part exposed, and the weather strip is sent to a vulcanizing furnace (4). A weather strip for automobiles, wherein the resin film is melted by heat of a vulcanizing furnace, part or all of the connecting parts of the core material are cut, and part or all of the unit parts are made independent. Manufacturing method.
JP2005215235A 2005-07-26 2005-07-26 Manufacturing method of weather strip for automobile Expired - Fee Related JP4672477B2 (en)

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US20080229670A1 (en) 2007-03-15 2008-09-25 Toyoda Gosei Co., Ltd. Weather strip
JP2008254720A (en) * 2007-03-15 2008-10-23 Toyoda Gosei Co Ltd Weatherstrip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943247U (en) * 1982-09-16 1984-03-21 三菱自動車工業株式会社 Weather strip structure
JPS61225036A (en) * 1985-03-29 1986-10-06 Toyoda Gosei Co Ltd Preparation of weather strip for car
JP2000061998A (en) * 1998-05-07 2000-02-29 Standard Prod Co:The Extrusion molded strip having variable neutral axis wire core and manufacture of the same
JP2004050896A (en) * 2002-07-17 2004-02-19 Toyoda Gosei Co Ltd Weather strip for automobile and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943247U (en) * 1982-09-16 1984-03-21 三菱自動車工業株式会社 Weather strip structure
JPS61225036A (en) * 1985-03-29 1986-10-06 Toyoda Gosei Co Ltd Preparation of weather strip for car
JP2000061998A (en) * 1998-05-07 2000-02-29 Standard Prod Co:The Extrusion molded strip having variable neutral axis wire core and manufacture of the same
JP2004050896A (en) * 2002-07-17 2004-02-19 Toyoda Gosei Co Ltd Weather strip for automobile and method for manufacturing the same

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