JP4354872B2 - Thermal insulation mold structure - Google Patents

Thermal insulation mold structure Download PDF

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JP4354872B2
JP4354872B2 JP2004149481A JP2004149481A JP4354872B2 JP 4354872 B2 JP4354872 B2 JP 4354872B2 JP 2004149481 A JP2004149481 A JP 2004149481A JP 2004149481 A JP2004149481 A JP 2004149481A JP 4354872 B2 JP4354872 B2 JP 4354872B2
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mold
heat insulating
mounting base
mold structure
base portion
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JP2005329604A (en
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康義 須崎
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Nishikawa Rubber Co Ltd
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本発明は、樹脂製の芯材を埋設した自動車用ウェザーストリップの押出成形品の端部同士を型成形接続する断熱性金型構造に関するものである。   The present invention relates to a heat insulating mold structure in which ends of extruded products of an automotive weather strip in which a resin core material is embedded are molded and connected.

自動車用ウェザーストリップは、通常、金属製の芯材を配した押出成形品の端部同士を対向させた状態で金型内で保持し、その金型内に溶融ゴム材等の型成形材料を注入して前記端部同士を型成形接続している。   Weather strips for automobiles are usually held in a mold with the ends of an extruded product with a metal core disposed facing each other, and a molding material such as a molten rubber material is placed in the mold. The end portions are molded and connected by molding.

近年、ウェザーストリップの軽量化およびリサイクル化の要求が強まる中で、芯材を金属製から樹脂製に代えた押出成形品が多く使用されているが、従来の通常の金型によって、樹脂製の芯材を埋設した押出成形品の端部同士を型成形接続すると、芯材が金型の熱によって軟化してしまう。そのため、押出成形品が、金型内に注入されたゴム材等の圧力によって変形し、浮き上がることにより外観の見栄えが低下するといった問題が発生する。
これは、樹脂製の芯材の耐熱温度が約１６０℃であるため、金型をこの温度条件に対応させると型成形接続時間が大幅に長くなるので、金型温度をそれより高く設定して接続時間を短縮していることに起因するものである。 In recent years, as the demand for lightening and recycling of weatherstrips has increased, many extruded products in which the core material is changed from metal to resin have been used. If the ends of the extrusion-molded product in which the core material is embedded are molded and connected, the core material is softened by the heat of the mold. Therefore, the extrusion molded product is deformed by the pressure of the rubber material or the like injected into the mold and rises to cause a problem that the appearance of the appearance is lowered.
This is because the heat-resistant temperature of the resin core is about 160 ° C, so if the mold is adapted to this temperature condition, the molding connection time will be significantly longer, so the mold temperature should be set higher. This is because the connection time is shortened.

こうした変形の問題を解決するために金型に断熱材を設けることが考えられる。また、これまでに金型に断熱材を設けた技術は存在する（例えば、特許文献１参照）。
特公平７−２０６１９号公報 In order to solve such a deformation problem, it is conceivable to provide a heat insulating material in the mold. Moreover, the technique which provided the heat insulating material in the metal mold | die until now exists (for example, refer patent document 1).
Japanese Patent Publication No. 7-20619

しかしながら、特許文献１に記載の技術は、押出成形品であるゴム一次成形体（１００）にコーナー部を形成すべく、切除部分（１０６）を形成し、金型内でこの切除部分（１０６）にゴム材を注入するものであり、断熱材１５は、芯材（板金インサート１０４）に金型の熱が伝わるのを抑制するようには設けられていない。
従って、この従来技術において、板金インサート（１０４）に代えて、樹脂製の芯材を使用すると、当該芯材は軟化し、ウェザーストリップは変形してしまうため、冷却水等による金型冷却が必要となっている。 However, the technique described in Patent Document 1 forms a cut portion (106) so as to form a corner portion in a rubber primary molded body (100) that is an extruded product, and this cut portion (106) is formed in a mold. The heat insulating material 15 is not provided so as to prevent the heat of the mold from being transmitted to the core material (sheet metal insert 104).
Therefore, in this prior art, when a resin core material is used instead of the sheet metal insert (104), the core material is softened and the weather strip is deformed, so that mold cooling with cooling water or the like is required. It has become.

そこで、本発明の目的とするところは、樹脂製の芯材を埋設した自動車用ウェザーストリップの押出成形品の端部同士を型成形接続する際に、芯材が軟化してウェザーストリップが変形することを抑制する断熱性金型構造を提供することにある。   Accordingly, the object of the present invention is to soften the core material and deform the weather strip when the ends of the extruded parts of the automotive weather strip in which the resin core material is embedded are molded and connected. An object of the present invention is to provide a heat insulating mold structure that suppresses this.

上記の目的を達成するために、本発明の請求項１に記載の断熱性金型構造は、少なくとも樹脂製の芯材（１３，２３，３３）が埋設された取付基部（１２，２２，３２）が押出成形されてなる自動車用ウェザーストリップ（１０，２０，３０）の端部同士を所定間隔をあけて対向させた状態で保持し、前記所定間隔に型成形材料を注入して型成形接続するための金型構造（１）であって、前記芯材（１３，２３，３３）が埋設された取付基部（１２，２２，３２）を直接囲むようにして断熱材（２）を金型に設けてなることを特徴とする。 In order to achieve the above object, the heat insulating mold structure according to claim 1 of the present invention has a mounting base (12, 22, 32) in which at least a resin core (13, 23, 33) is embedded. ) Is extruded and held in a state where the ends of the automobile weather strips (10, 20, 30) are opposed to each other with a predetermined interval, and a molding material is injected into the predetermined interval to form a mold connection. A heat insulating material (2) is provided on the mold so as to directly surround the mounting base (12, 22, 32) in which the core material (13, 23, 33) is embedded. It is characterized by.

また、請求項２に記載の発明は、樹脂製の芯材（１３，２３）が埋設された断面Ｕ字状の取付基部（１２，２２）に中空シール部（１４，２４）が一体的に押出成形されてなる自動車用ウェザーストリップ（１０，２０）の端部同士を所定間隔をあけて対向させた状態で保持し、前記所定間隔に型成形材料を注入して型成形接続するための金型構造（１）であって、前記中空シール部（１４，２４）と取付基部（１２，２２）の内側部分を除く部分であって、前記芯材（１３，２３）が埋設された取付基部（１２，２２）を直接囲むようにして断熱材（２）を金型に設けてなることを特徴とする。 According to the second aspect of the present invention, the hollow seal portion (14, 24) is integrally formed with the mounting base portion (12, 22) having a U-shaped cross section in which the resin core material (13, 23) is embedded. A metal for holding the ends of the automobile weather strips (10, 20) formed by extrusion so as to face each other at a predetermined interval and injecting a molding material into the predetermined interval for mold forming connection. A mounting structure in which the core (13, 23) is embedded in the mold structure (1) except for the hollow seal portion (14, 24) and the inner portion of the mounting base (12, 22). The heat insulating material (2) is provided in the mold so as to directly surround (12, 22).

また、請求項３に記載の発明は、前記中空シール部（１４）は、前記取付基部（１２）の側面に一体成形されたものであることを特徴とする。   The invention according to claim 3 is characterized in that the hollow seal portion (14) is integrally formed on a side surface of the mounting base portion (12).

また、請求項４に記載の発明は、前記中空シール部（２４）は、前記取付基部（２２）の側面間を連結する底面に一体成形されたものであることを特徴とする。   According to a fourth aspect of the present invention, the hollow seal portion (24) is integrally formed on a bottom surface that connects the side surfaces of the mounting base portion (22).

さらに、請求項５に記載の発明は、前記取付基部（１２，２２，３２）の内側部分にも更に断熱材（２）を設けてなることを特徴とする。   Furthermore, the invention described in claim 5 is characterized in that a heat insulating material (2) is further provided on the inner portion of the mounting base (12, 22, 32).

またさらに、請求項６に記載の発明は、前記断熱材（２）の前記所定間隔側の先端（２ａ）を、前記金型で保持された自動車用ウェザーストリップ（１０）の端部（Ｃ）から、対向する端部側とは逆側に僅かに、例えば、１〜５ｍｍ程度後退させてなることを特徴とする。   Furthermore, in the invention according to claim 6, the end portion (C) of the weather strip (10) for an automobile in which the tip (2a) on the predetermined interval side of the heat insulating material (2) is held by the mold. Therefore, it is slightly retracted, for example, by about 1 to 5 mm on the opposite side to the opposite end side.

なお、カッコ内の記号は、図面および後述する発明を実施するための最良の形態に記載された対応要素または対応事項を示す。   Symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and the best mode for carrying out the invention described later.

本発明の請求項１に記載の断熱性金型構造によれば、芯材が埋設された取付基部を直接囲むようにして断熱材を金型に設けたので、金型の熱が芯材に伝わるのを抑制することができる。従って、芯材が熱によって軟化し、金型内に注入される型成形材料の圧力によってウェザーストリップが変形することがなく、外観性に優れる。 According to the heat insulating mold structure of the first aspect of the present invention, since the heat insulating material is provided in the mold so as to directly surround the mounting base in which the core material is embedded, the heat of the metal mold is transmitted to the core material. Can be suppressed. Therefore, the core material is softened by heat, and the weather strip is not deformed by the pressure of the molding material injected into the mold, and the appearance is excellent.

本発明の請求項２に記載の断熱性金型構造によれば、中空シール部と、取付基部の内側部分を除く部分であって、芯材が埋設された取付基部を直接囲むようにして断熱材を金型に設けたので、金型の熱が芯材に伝わるのを抑制することができる。従って、芯材が熱によって軟化し、金型内に注入される型成形材料の圧力によってウェザーストリップが変形することがなく、外観性に優れる。 According to the heat insulating mold structure according to claim 2 of the present invention, the heat insulating material is directly surrounded by the mounting base portion in which the core material is embedded, except for the hollow seal portion and the inner portion of the mounting base portion. Since it provided in the metal mold | die, it can suppress that the heat | fever of a metal mold | die is transmitted to a core material. Therefore, the core material is softened by heat, and the weather strip is not deformed by the pressure of the molding material injected into the mold, and the appearance is excellent.

また、請求項３や請求項４に記載の発明のように、種々のタイプの自動車用ウェザーストリップの型成形金型として適用することができる。   Further, as in the invention described in claim 3 and claim 4, it can be applied as a mold for molding various types of automobile weather strips.

さらに、請求項５に記載の発明によれば、請求項２乃至４に記載の発明の作用効果に加えて、取付基部の内側部分にも断熱材を設けているので、芯材の軟化をより効果的に抑制することができ、ウェザーストリップの変形をさらに防止することができる。   Furthermore, according to the invention described in claim 5, in addition to the effects of the invention described in claims 2 to 4, since the heat insulating material is provided also in the inner part of the mounting base, the core material is further softened. This can effectively suppress the deformation of the weather strip.

またさらに、請求項６に記載の発明によれば、請求項１乃至５に記載の発明の作用効果に加えて、断熱材の先端を、押出成形品の末端である接続位置から１〜５ｍｍ程度僅かに後退させたので、ウェザーストリップ型成形部の接続位置にバリが発生するのを防止することができる。   Furthermore, according to the invention described in claim 6, in addition to the operational effects of the invention described in claims 1 to 5, the tip of the heat insulating material is about 1 to 5 mm from the connection position which is the end of the extruded product. Since it is slightly retracted, it is possible to prevent burrs from being generated at the connection position of the weatherstrip mold part.

図１および図２を参照して、本発明の第一実施形態に係る断熱性金型構造１について説明する。図１は断熱性金型構造１を示す平面図であり（上型３を除いた状態）、図２は図１のＡ−Ａ線断面図である。なお、図１のＢ−Ｂ線断面図もＡ−Ａ線断面図と同様な形状をしている。   With reference to FIG. 1 and FIG. 2, the heat insulation metal mold | die structure 1 which concerns on 1st embodiment of this invention is demonstrated. FIG. 1 is a plan view showing a heat insulating mold structure 1 (with the upper mold 3 removed), and FIG. 2 is a cross-sectional view taken along the line AA of FIG. In addition, the BB sectional view of FIG. 1 has the same shape as the AA sectional view.

この断熱性金型構造１は、自動車用のドアウェザーストリップ１０を形成する押出成形品１１の端部同士を所定間隔をあけて対向させた状態で金型内に保持し、前記所定間隔に型成形材料を注入して、押出成形品１１の端部同士を型成形接続するための金型構造である。この押出成形品１１は、断面Ｕ字状で、例えば熱可塑性樹脂製等の樹脂製の芯材１３が埋設された、同じく断面Ｕ字状の取付基部１２と、その取付基部１２の側面に一体的に押出成形された中空シール部１４と、取付基部１２の他方の側面から突設されたシール部１５とで構成される。なお、シール部１５は省いてもよい。   This heat-insulating mold structure 1 is held in a mold in a state in which ends of extruded products 11 forming a door weather strip 10 for an automobile face each other at a predetermined interval, and the mold is formed at the predetermined interval. This is a mold structure for injecting a molding material and mold-molding and connecting the ends of the extruded product 11 to each other. This extrusion-molded product 11 has a U-shaped cross section, for example, a mounting base 12 having a U-shaped cross section in which a resin core 13 such as a thermoplastic resin is embedded, and a side surface of the mounting base 12. It is comprised by the hollow seal part 14 extruded and the seal part 15 protrudingly provided from the other side surface of the attachment base part 12. FIG. Note that the seal portion 15 may be omitted.

この金型構造１には、押出成形品１１の中空シール部１４と、断面Ｕ字状の取付基部１２の内側部分を除く部分に、芯材１３が埋設された取付基部１２を直接囲むようにして断熱材２を金型に設けている。すなわち、この金型構造１は、上型３、下型４、第一割型５、第二割型６、第三割型７、第四割型８および第五割型９で構成し、第一割型５、第二割型６および第五割型９の上部にそれぞれ断熱材２をボルトで取付けている。第一割型５と第二割型６はこの順に上型３と下型４の間で、取付基部１２の開口部とは逆側に設けられ、第三割型７、第四割型８および第五割型９はこの順に上型３と下型４の間で、取付基部１２の開口部側に設けられている。 In this mold structure 1, heat insulation is provided so as to directly surround the mounting base 12 in which the core material 13 is embedded in a portion excluding the hollow seal portion 14 of the extruded product 11 and the inner portion of the mounting base 12 having a U-shaped cross section. The material 2 is provided in the mold. That is, the mold structure 1 includes an upper mold 3, a lower mold 4, a first split mold 5, a second split mold 6, a third split mold 7, a fourth split mold 8, and a fifth split mold 9. The heat insulating material 2 is attached to the upper portions of the first split mold 5, the second split mold 6 and the fifth split mold 9 with bolts. The first split mold 5 and the second split mold 6 are provided in this order between the upper mold 3 and the lower mold 4 on the side opposite to the opening of the mounting base 12, and the third split mold 7 and the fourth split mold 8. The fifth split mold 9 is provided on the opening side of the mounting base 12 between the upper mold 3 and the lower mold 4 in this order.

断熱材２を形成する物質としては、圧縮強度：４００Ｍｐａ以上、熱伝導率：０．３Ｗ／ｍｋ以下、耐熱性：３００℃以上で、機械加工が可能なものが望ましい。   As a material for forming the heat insulating material 2, a material that can be machined at a compressive strength of 400 Mpa or more, a thermal conductivity of 0.3 W / mk or less, and a heat resistance of 300 ° C. or more is desirable.

また、この金型構造１における断熱材２は、その先端２ａを、押出成形品１１と型成形部１７との接続位置Ｃから１〜５ｍｍ程度、僅かに後退させている。これにより接続位置Ｃにバリが発生することが防止される。１ｍｍ未満では、ウェザーストリップ型成形部にバリが発生する可能性が高くなり、５ｍｍをこえると、樹脂等の芯材に熱が伝わり、変形しウェザーストリップの外観が悪化する。   Further, the heat insulating material 2 in the mold structure 1 has its tip 2a slightly retracted by about 1 to 5 mm from the connection position C between the extruded product 11 and the molded part 17. This prevents burrs from occurring at the connection position C. If it is less than 1 mm, there is a high possibility that burrs will occur in the weatherstrip-shaped molded part, and if it exceeds 5 mm, heat is transmitted to the core material such as resin, and the appearance of the weatherstrip deteriorates.

なお、断熱材２を設ける代わりに、金型構造を短くして芯材１３の軟化を抑制することも考えられるが、そうすると金型で押出成形品１１の端部を保持することができないため、押出成形品１１が注入した型成形材料の圧力で押され、ズレやオーバーラップが発生し、好ましくない。また、金型構造を部分的に冷却水等により冷却することも考えられるが、金型構造が複雑化し、冷却設備が必要となるので不利である。   In addition, it is conceivable to suppress the softening of the core material 13 by shortening the mold structure instead of providing the heat insulating material 2, but then the end of the extruded product 11 cannot be held by the mold, The extruded product 11 is pushed by the pressure of the molding material injected, and shift and overlap occur, which is not preferable. Although it is conceivable to partially cool the mold structure with cooling water or the like, it is disadvantageous because the mold structure becomes complicated and cooling equipment is required.

この点、本実施形態に係る断熱性金型構造１は、所定箇所に断熱材２を設けたので、金型温度を下げることなく熱可塑性樹脂製の芯材１３が軟化するのを防止することができる。ちなみに、断熱材２を設けない通常の金型で芯材１３の軟化を防止しながら型成形接続するためには、金型の温度を１６０℃に設定し、１５分の型成形接続時間を必要とするが、本実施形態に係る金型構造１では、金型温度を１８５℃に設定し、３分で型成形接続を行うことができる。   In this respect, since the heat insulating mold structure 1 according to the present embodiment is provided with the heat insulating material 2 at a predetermined location, the core material 13 made of thermoplastic resin is prevented from being softened without lowering the mold temperature. Can do. By the way, in order to make a mold connection while preventing the softening of the core material 13 with a normal mold not provided with the heat insulating material 2, the mold temperature is set to 160 ° C. and a molding connection time of 15 minutes is required. However, in the mold structure 1 according to the present embodiment, the mold temperature can be set to 185 ° C., and the molding connection can be performed in 3 minutes.

次に図３を参照して、本発明の第二実施形態に係る断熱性金型構造１について説明する。図３はその断熱性金型構造１の要部を示す断面図である。
この金型構造１は、図２で示した第四割型８に断熱材２をさらに取付け、取付基部１２の内側部分にも断熱材２を設けている。これにより、金型の熱が芯材１３に伝わるのをさらに抑制することができ、当該芯材１３の軟化およびウェザーストリップ１０の変形をより効果的に防止することができる。なお、本金型構造１で型成形接続するウェザーストリップ１０には、リップ部１６を設けているが限定されるものではない。 Next, with reference to FIG. 3, the heat insulation metal mold structure 1 which concerns on 2nd embodiment of this invention is demonstrated. FIG. 3 is a cross-sectional view showing a main part of the heat insulating mold structure 1.
In the mold structure 1, the heat insulating material 2 is further attached to the fourth mold 8 shown in FIG. 2, and the heat insulating material 2 is also provided on the inner portion of the mounting base 12. Thereby, it can further suppress that the heat | fever of a metal mold | die is transmitted to the core material 13, and the softening of the said core material 13 and the deformation | transformation of the weather strip 10 can be prevented more effectively. In addition, although the lip | rip part 16 is provided in the weather strip 10 shape-connected by this metal mold structure 1, it is not limited.

次に図４を参照して、本発明の第三実施形態に係る断熱性金型構造１について説明する。図４はその断熱性金型構造１の要部を示す断面図である。
第一，二実施形態に係る断熱性金型構造１では、取付基部１２の一側面に中空シール部１４を設けた自動車用ウェザーストリップ１０の端部同士を型成形接続するものを示したが、樹脂製芯材２３の埋設された取付基部２２の両側面間を連結する底面に、中空シール部２４を一体的に押出成形した、例えば、トランクリッド等に使用される自動車用ウェザーストリップ２０においても適用可能である。この場合、中空シール部２４を除くようにして、芯材２３の埋設された取付基部２２を直接囲むようにして断熱材２が金型に設けられている。 Next, with reference to FIG. 4, the heat insulation metal mold structure 1 which concerns on 3rd embodiment of this invention is demonstrated. FIG. 4 is a cross-sectional view showing the main part of the heat insulating mold structure 1.
In the heat-insulating mold structure 1 according to the first and second embodiments, the end portions of the automotive weather strip 10 provided with the hollow seal portion 14 on one side surface of the mounting base 12 are molded and connected. Also in a weather strip 20 for an automobile used for, for example, a trunk lid or the like, in which a hollow seal portion 24 is integrally formed on a bottom surface connecting both side surfaces of a mounting base portion 22 in which a resin core material 23 is embedded. Applicable. In this case, the heat insulating material 2 is provided in the mold so as to directly surround the mounting base 22 in which the core member 23 is embedded, except for the hollow seal portion 24.

次に図５を参照して、本発明の第四実施形態に係る断熱性金型構造１について説明する。図５はその断熱性金型構造１の要部を示す断面図である。
第一，二，三実施形態に係る断熱性金型構造１では、取付基部１２，２２に中空シール部１４，２４を設けた自動車用ウェザーストリップ１０，２０の端部同士を型成形接続するものを示したが、中空シール部１４，２４が一体成形されておらず、樹脂製芯材３３の埋設された取付基部３２だけからなる自動車用ウェザーストリップ３０においても適用可能である。この場合、芯材３３の埋設された取付基部３２の全体を囲むようにして断熱材２が金型に設けられている。 Next, with reference to FIG. 5, the heat insulation metal mold structure 1 which concerns on 4th embodiment of this invention is demonstrated. FIG. 5 is a cross-sectional view showing a main part of the heat insulating mold structure 1.
In the heat-insulating mold structure 1 according to the first, second, and third embodiments, the end portions of the weather strips 10 and 20 for automobiles provided with the hollow seal portions 14 and 24 on the mounting base portions 12 and 22 are molded and connected to each other. However, the present invention can also be applied to a weather strip 30 for an automobile, which is not integrally formed with the hollow seal portions 14 and 24 and includes only the mounting base portion 32 in which the resin core material 33 is embedded. In this case, the heat insulating material 2 is provided in the mold so as to surround the entire mounting base 32 in which the core material 33 is embedded.

本発明の第一実施形態，第二実施形態および第三実施形態に係る断熱性金型構造では、５個の割型を設け、また第四実施形態に係る断熱性金型構造では３個の割型を設けて構成しているが、本発明の実施はこうした構成に限定されるものではなく、割型の数は適宜設定することができる。
また、本発明の実施形態では、断面Ｕ字状の芯材が埋設された、同じく断面Ｕ字状の取付基部を示したが、芯材が埋設された取付基部の部位を囲むように断熱材を設ければ効果があるので、芯材や取付基部の形状は、断面Ｕ字状に限定されるものではなく、断面Ｌ字状でも断面Ｉ字状でも適用可能である。 In the heat insulating mold structure according to the first embodiment, the second embodiment, and the third embodiment of the present invention, five split molds are provided, and in the heat insulating mold structure according to the fourth embodiment, three pieces are provided. Although the split mold is provided, the embodiment of the present invention is not limited to such a configuration, and the number of split molds can be set as appropriate.
Further, in the embodiment of the present invention, the attachment base portion having the U-shaped cross section embedded in the U-shaped core material is shown, but the heat insulating material surrounds the portion of the attachment base portion embedded in the core material. Therefore, the shape of the core member and the mounting base is not limited to the U-shaped section, and can be applied to an L-shaped section or an I-shaped section.

本発明の第一実施形態に係る断熱性金型構造を示す平面図である（上型を除いた状態）。It is a top view which shows the heat insulation metal mold | die structure which concerns on 1st embodiment of this invention (state except the upper mold | type). 図１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 本発明の第二実施形態に係る断熱性金型構造の要部を示す断面図である。It is sectional drawing which shows the principal part of the heat insulation metal mold | die structure which concerns on 2nd embodiment of this invention. 本発明の第三実施形態に係る断熱性金型構造の要部を示す断面図である。It is sectional drawing which shows the principal part of the heat insulation metal mold | die structure which concerns on 3rd embodiment of this invention. 本発明の第四実施形態に係る断熱性金型構造の要部を示す断面図である。It is sectional drawing which shows the principal part of the heat insulation metal mold | die structure which concerns on 4th embodiment of this invention.

符号の説明Explanation of symbols

１ 断熱性金型構造
２ 断熱材
２ａ 先端
３ 上型
４ 下型
５ 第一割型
６ 第二割型
７ 第三割型
８ 第四割型
９ 第五割型
１０，２０，３０ ウェザーストリップ
１１ 押出成形品
１２，２２，３２ 取付基部
１３，２３，３３ 芯材
１４，２４ 中空シール部
１５ シール部
１６，２６，３６ リップ部
１７ 型成形部
Ｃ 接続位置 DESCRIPTION OF SYMBOLS 1 Heat insulation mold structure 2 Heat insulating material 2a Tip 3 Upper mold 4 Lower mold 5 First split mold 6 Second split mold 7 Third split mold 8 Fourth split mold 9 Fifth split mold 10, 20, 30 Weather strip 11 Extruded product 12, 22, 32 Mounting base 13, 23, 33 Core material 14, 24 Hollow seal part 15 Seal part 16, 26, 36 Lip part 17 Molding part C Connection position

Claims (6)

少なくとも樹脂製の芯材が埋設された取付基部が押出成形されてなる自動車用ウエザーストリップの端部同士を所定間隔をあけて対向させた状態で保持し、前記所定間隔に型成形材料を注入して型成形接続するための金型構造であって、
前記芯材が埋設された取付基部を直接囲むようにして断熱材を金型に設けてなることを特徴とする断熱性金型構造。 At least the end portions of the automobile weather strip formed by extrusion molding the mounting base portion in which the resin core material is embedded are held facing each other with a predetermined interval, and the molding material is injected into the predetermined interval. A mold structure for connecting and molding
A heat insulating mold structure characterized in that a heat insulating material is provided in a mold so as to directly surround an attachment base portion in which the core material is embedded. 樹脂製の芯材が埋設された断面Ｕ字状の取付基部に中空シール部が一体的に押出成形されてなる自動車用ウェザーストリップの端部同士を所定間隔をあけて対向させた状態で保持し、前記所定間隔に型成形材料を注入して型成形接続するための金型構造であって、
前記中空シール部と取付基部の内側部分を除く部分であって、前記芯材が埋設された取付基部を直接囲むようにして断熱材を金型に設けてなることを特徴とする断熱性金型構造。 Holds the end of an automotive weatherstrip formed by integrally extruding a hollow seal on a U-shaped mounting base embedded with a resin core and facing each other at a predetermined interval. , A mold structure for injecting a molding material at the predetermined interval and connecting it by molding,
A heat insulating mold structure characterized in that a heat insulating material is provided in a mold so as to directly surround the mounting base portion in which the core material is embedded, except for the hollow seal portion and the inner portion of the mounting base portion. 前記中空シール部は、前記取付基部の側面に一体成形されたものであることを特徴とする請求項２に記載の断熱性金型構造。   The heat insulating mold structure according to claim 2, wherein the hollow seal portion is integrally formed on a side surface of the mounting base portion. 前記中空シール部は、前記取付基部の側面間を連結する底面に一体成形されたものであることを特徴とする請求項２に記載の断熱性金型構造。   The heat insulating mold structure according to claim 2, wherein the hollow seal portion is integrally formed on a bottom surface connecting the side surfaces of the mounting base portion. 前記取付基部の内側部分にも更に断熱材を設けてなることを特徴とする請求項２乃至４のうちいずれか一つに記載の断熱性金型構造。   The heat insulating mold structure according to any one of claims 2 to 4, wherein a heat insulating material is further provided on an inner portion of the mounting base portion. 前記断熱材の前記所定間隔側の先端を、前記金型で保持された自動車用ウェザーストリップの端部から、対向する端部側とは逆側に僅かに後退させてなることを特徴とする請求項１乃至５のうちいずれか一つに記載の断熱性金型構造。   The front end of the heat insulating material on the predetermined interval side is slightly retracted from the end of the automobile weather strip held by the mold to the opposite side to the opposite end side. Item 6. The heat-insulating mold structure according to any one of Items 1 to 5.
JP2004149481A 2004-05-19 2004-05-19 Thermal insulation mold structure Expired - Fee Related JP4354872B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7666490B1 (en) 1999-02-10 2010-02-23 Toyo Boseki Kabushiki Kaisha Functional roll film and vacuum evaporation apparatus capable of producing the functional roll film

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5147526B2 (en) * 2008-05-08 2013-02-20 西川ゴム工業株式会社 Weather Strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7666490B1 (en) 1999-02-10 2010-02-23 Toyo Boseki Kabushiki Kaisha Functional roll film and vacuum evaporation apparatus capable of producing the functional roll film

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