JP2004202984A - Automotive interior trim product and its manufacturing method - Google Patents

Automotive interior trim product and its manufacturing method Download PDF

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Publication number
JP2004202984A
JP2004202984A JP2002377830A JP2002377830A JP2004202984A JP 2004202984 A JP2004202984 A JP 2004202984A JP 2002377830 A JP2002377830 A JP 2002377830A JP 2002377830 A JP2002377830 A JP 2002377830A JP 2004202984 A JP2004202984 A JP 2004202984A
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JP
Japan
Prior art keywords
base material
skin
skin material
terminal
cushion
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
Application number
JP2002377830A
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Japanese (ja)
Inventor
Takahiro Yamaguchi
孝弘 山口
Keiji Morishita
恵二 森下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuboshi Belting Ltd
Original Assignee
Mitsuboshi Belting Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsuboshi Belting Ltd filed Critical Mitsuboshi Belting Ltd
Priority to JP2002377830A priority Critical patent/JP2004202984A/en
Publication of JP2004202984A publication Critical patent/JP2004202984A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1257Joining a preformed part and a lining, e.g. around the edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automotive interior trim product preventing a cushioning material such as a foamed urethane or the like from leaking by making the seal surface of a skin material with a base material one or more to surely seal the skin material and the base material, and to provide its manufacturing method. <P>SOLUTION: In the automotive interior trim product constituted of the skin material 2, the base material 3 and the cushioning material 4 formed by foaming a liquid raw material between the skin material 2 and the base material 3, the skin material 2 and the base material 3 are sealed by the contact surface 5 of the skin material 2 with the base material 3 and the skin material 2 and the base material 3 are sealed by interposing a seal member 7 between them at the terminal 6 of the skin material 2 to seal both materials 2 and 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、緩衝機能を有する自動車内装品及びその製造方法に関し、特に、表皮材、基材、クッション材が一体に形成された自動車のインストルメントパネル等の自動車内装品及びその製造方法に関する。
【0002】
【従来の技術】
インストルメントパネルやグローブボックス等の如き自動車用内装品では、軽量化や装飾性を向上させ、また事故発生時に衝撃を緩和させるために、基材と表皮材との間に発泡ウレタン等のクッション材を介在させた多層成形品が好適に使用されている。
【0003】
また、インストルメントパネルにおいては、部品点数削減という観点から部分的にのみ発泡ウレタン等のクッション材を介在させる成形品も使用されている。このように、部分的にクッション材を介在させる場合は、図3に示すように、基材20の形状を利用して、基材20のタテ壁22に表皮材21を重ねあわせ、表皮材21内部の発泡ウレタン等のクッション材23の発泡圧力によって表皮材21と基材20をシールしてクッション材23が滲み出てくるのを防止している。
【0004】
ところが、このようなシール方法では、完全に発泡ウレタン等のクッション材23が滲み出てくることを防止することが困難で、例えば、図4及び図5に示すようにモレ24が発生していた。図4に示すものは、発泡ウレタン等のクッション材23の発泡圧力によって、表皮材21が基材20にうまく押し付けられず、シール面に隙間が生じることによってモレが発生した場合を示している。図5に示すものは、表皮材21が基材20の形状に合うように接触することがなく、表皮材21の端末と基材20との間に隙間が生じ、この隙間からクッション材23が滲み出し、モレ24が発生した場合を示している。このように、表皮材21と基材20との位置ズレがあれば、モレ24が発生してしまうために、表皮材21と基材20との正確な位置合せが必要であった。
【0005】
このため、発泡ウレタン等のクッション材が滲み出てくるのを防止する方法として、種々の方法が開示されている。例えば、成形型のシール面の一方に突出部を形成し、型合せした際にこの突出部によってシール面を押圧し、シールする方法が知られている(例えば、特許文献1乃至6参照。)。
【0006】
【特許文献1】
実開平3−77610号公報
【特許文献2】
特開平5−329849号公報
【特許文献3】
特開昭62−207608号公報
【特許文献4】
特開昭62−144910号公報
【特許文献5】
実開平1−148314号公報
【特許文献6】
特開平7−156163号公報
【0007】
【発明が解決しようとする課題】
しかしながら、これら、従来のシール方法では、いずれか一方に突出部を形成する必要があった。また、このように、突出部を形成した場合であっても、シール面が1箇所であるため、前述したようにシール面の位置ズレ等があった場合には、モレが発生することもあった。
【0008】
本発明は、このような問題点を鑑みてなされたものであり、表皮材と基材とのシール面を複数にすることによって、表皮材と基材との間のシールを確実に行い、発泡ウレタン等のクッション材のモレが防止された自動車内装品及びその製造方法を提供することを目的とする。
【0009】
【課題を解決するための手段】
上記課題を解決するための本発明に係る請求項1に記載の自動車内装品は、表皮材と、基材と、前記表皮材と前記基材の間で液状原料が発泡して形成されたクッション材と、で構成される自動車内装品であって、前記表皮材と前記基材とが、前記表皮材と前記基材との当接面でシールされているとともに、前記表皮材の端末において前記表皮材と前記基材とがシール部材を介在してシールされていることを特徴とするものである。
表皮材と基材とが、当接面でシールされるとともに、表皮材の端末においてもシール部材によってシールされる。このように、複数のシール面でシールされるため、発泡ウレタン等のクッション材の漏出を確実に防止することができる。
【00010】
また、請求項2に記載の自動車内装品は、請求項1において、前記表皮材の端末において、前記表皮材が折り曲げられ、折り曲げられた前記表皮材の外表面と前記基材との間に空間が形成されていることを特徴とするものである。
発泡ウレタン等のクッション材が、表皮材の端末部分で漏れた場合であっても、空間を設けることによって、まず、空間内で横方向に広がるために、発泡圧力が大幅に減少する。このため、基材のタテ壁と表皮材とのシール面を乗り越えて漏れることがなくなり、確実にクッション材の漏出を防止できる。また、シール面の位置がずれた場合であっても、表皮材の端末の折り曲げられる量が変動するのみで、漏れへの影響は抑えることができる。
【0011】
また、請求項3に記載の自動車内装品は、請求項1又は2において、前記シール部材が、内部に連続気泡を有するソフトテープであることを特徴とするものである。
シール部材によって確実にシールできる。また、連続気泡を内部に有しているため、発泡ウレタン等のクッション材の発泡時に発生するガスを効率良く製品外に排出できる。また、気泡は小さくクッション材が通過することがない。このため、発泡時にガスのみが抜け、発泡圧力によって、シール面がずれることもなくなり、クッション材の漏出をより一層防止する効果が得られる。
【0012】
また、請求項4に記載の自動車内装品の製造方法は、基材を設けた一方の型に対し、表皮を設けた他方の型を型合せして、前記基材と前記表皮との間で液状原料を発泡させてクッション材を形成する自動車内装品の製造方法であって、シール部材を前記基材の所定位置に貼付し、前記表皮材の端末を前記シール部材に接着した後、型合せすることによって前記表皮材の端末を折り曲げるとともに、前記表皮材と前記基材とを当接して、前記液状原料の発泡の際に前記液状原料が滲み出ないようにシールすることを特徴とするものである。
表皮材と基材とが、当接面でシールされるとともに、表皮材の端末においてもシールされ、複数のシール面でシールされるため、発泡ウレタン等のクッション材が滲み出るのを確実に防止することができる。
【0013】
また、請求項5に記載の自動車内装品の製造方法は、請求項4において、前記表皮材の端末を折り曲げる際に、前記表皮材の端末の折り曲げられた部分と前記基材との間に空間が形成されるように型合せすることを特徴とするものである。
発泡ウレタン等のクッション材が、表皮材の端末部分で漏れた場合であっても、空間を設けることによって、まず、空間内で横方向に広がるために、発泡圧力が大幅に減少する。このため、基材のタテ壁と表皮材とのシール面を乗り越えて漏れることがなくなり、確実にクッション材の漏出を防止できる。また、シール面に位置がずれた場合であっても、表皮材の端末の折り曲げられる量が変動するのみで、漏れへの影響は抑えることができる。
【0014】
また、請求項6に記載の自動車内装品の製造方法は、請求項3又は4において、前記シール部材が、ソフトテープであることを特徴とするものである。
シール部材によって確実にシールできる。また、連続気泡を内部に有しているため、発泡ウレタン等のクッション材の発泡時に発生するガスを効率良く製品外に排出できる。また、気泡は小さくクッション材が通過することがない。このため、発泡時にガスのみが抜け、発泡圧力によって、シール面がずれることもなくなり、クッション材が滲み出るのを防止する効果がより一層顕著となる。
【0015】
【発明の実施の形態】
以下、図面を参照しつつ本発明の実施の形態例を説明する。
【0016】
図1は、本発明に係る自動車内装品の実施形態の一例の断面を示す図である。図1に示すように、本実施形態例に示す自動車内装品1は、表皮材2と、基材3と、表皮材2と基材3の間で液状原料が発泡して形成されたクッション材4と、で構成され、表皮材2と基材3とが、表皮材2と基材3との当接面(タテ壁)5でシールされているとともに、表皮材2の端末6において表皮材2と基材3とがシール部材7を介在してシールされている。
【0017】
表皮材2は、例えば、PVC樹脂等によってパウダースラッシュ成形法等によって予め所定の形状に成形されている。基材3は、例えば、金属や合成樹脂等によって形成されている。クッション材3は、例えば、発泡ウレタン等の液状原料を発泡させて形成されている。
【0018】
また、表皮材2は、端末6において折り曲げられている。そして、基材3の下面に貼布されているシール部材7に接着されて固定されている。また、この折り曲げられた端末6の外表面9と、基材3との間には空間8が形成されている。
【0019】
シール部材7は、内部に連続気泡を有するソフトテープであることが好ましい。内部に連続気泡を有しているため、クッション材4が発泡時に発生するCO2等のガスを効率良く製品外に排出することができる。また、この連続気泡は、気泡径が小さいため、高粘度のウレタンは通過しにくいため、クッション材が滲み出ることがない。したがって、クッション材4の発泡時には、ガスのみが通過するため、表皮材2の内部にガスが溜まることもなく、また、クッション材が滲み出ることも防止できる。
【0020】
次に、図2により、本実施形態例に係る自動車内装品の製造方法について説明する。
【0021】
図2(a)に示すように、まず、予め成形しておいた表皮材2と、基材3をそれぞれ成形金型10及び11にセットする。この時、シール部材7は、所定の位置に貼付しておく。そして、図中に矢印で示す方向に、成形金型11をスライドさせていく。
【0022】
成形金型11を図中に矢印で示す方向にスライドさせていくと、図2(b)に示すように、表皮材2の端末6が、基材3に貼付されているシール部材7に接着する。そして、さらに、この成形金型11を矢印方向にスライドさせていくと、表皮材2の端末6部分が、図2(c)に示すように折り曲げられて、シール部材7に接着固定される。この際、シール部材7が表皮材2と基材3の当接面5から少し離れた位置に貼付されているため、表皮材4と基材3との間には、空間8が形成される。そして、このように成形金型10及び11の型合せ後に、発泡ウレタン等の液状原料が供給される。そして、発泡時の発泡圧力によって、表皮材2は基材3との当接面5に押圧されてシールされる。
【0023】
このように、成形金型10及び11を型合せすることによって、表皮材2の端末6部分をシール部材7によってシールするとともに、表皮材2と基材3との当接面5によってもシールすることが可能となる。また型合せすることによって、表皮材2の端末6が、折り曲げられた状態でシール部材7に接着固定され、基材3との間に空間8を形成することができるため、仮に、液状原料が発泡する際にシール部材7を乗り越えて滲み出てきたとしても、先ず始めに空間8で横方向に広がるため、発泡圧力が大幅に減少し、表皮材2と基材3との当接面5のシールを破って滲み出てくることを確実に防止できる。
【0024】
また、端末6部分をシール部材7に接着して折り曲げて固定しているため、例えば、表皮材2の端末長さや基材3の形状が多少ばらついた場合であっても、端末6部分の折り曲げ量が変化するのみであり、位置ズレがあった場合であっても、液状原料が滲み出ることは防止できる。
【0025】
【実施例】
以下、実施例により、本発明をより具体的に説明する。
自動車用インストルメントパネルにおいて、パウダースラッシュ成形法によって形成したTPUからなる厚さ1.0mm、表皮端末長さ14mmの表皮材を作成した。また、基材は、当接面のシール長さが10mmとなるような基材を用いた。この基材のタテ壁から0〜2mm離れた位置にシール部材となる10wmm×5hmmのソフトテープ(密度0.03g/cm3)を貼付した。そして、これら表皮材及び基材を発泡成形金型にセットし、図2に示すようにして型合せを行って、表皮材の端末及び表皮材と基材との当接面の2箇所のシール面を形成し、発泡ウレタンを供給することによってインストルメントパネルを作製した。このようにして、100本のインストルメントパネルを作製したが、クッション材が表皮材の表面へ滲み出てくるものは、1本も確認されなかった。
【0026】
一方、シール部材を使用せずに、表皮材を基材との当接面に発泡材の発泡圧力によって押圧して、この当接面でのみシール面を形成した従来の方法の場合は、100本のインストルメントパネルを作製した結果、100本とも、この当接面からクッション材が滲み出ているのが確認された。
【0027】
【発明の効果】
本発明は以上のように構成されており、表皮材と基材とが、当接面でシールされるとともに、表皮材の端末においてもシール部材によってシールされる。このように、複数のシール面でシールされるため、発泡ウレタン等のクッション材の漏出を確実に防止することができる。また、発泡ウレタン等のクッション材が、表皮材の端末部分で漏れた場合であっても、空間が設けられているため、まず、空間内で横方向に広がるために、発泡圧力が大幅に減少する。このため、基材のタテ壁と表皮材とのシール面を乗り越えて漏れることがなくなり、確実にクッション材の漏出を防止できる。また、シール面の位置がずれた場合であっても、表皮材の端末の折り曲げられる量が変動するのみで、漏れへの影響は抑えることができる。また、シール部材を用いられているため、確実にシールすることができる。また、シール部材が連続気泡を内部に有しているため、発泡ウレタン等のクッション材の発泡時に発生するガスを効率良く製品外に排出できる。また、気泡は小さくクッション材が通過することがないため、発泡時にガスのみが抜け、発泡圧力によって、シール面がずれることもなくなり、クッション材の漏出をより一層防止する効果が得られる。
【図面の簡単な説明】
【図1】本発明に係る自動車内装品の実施形態の一例の断面を示す図である。
【図2】本発明に係る自動車内装品の製造方法を説明するための図である。
【図3】従来の自動車内装品の構造を示す図である。
【図4】従来の自動車内装品のクッション材のモレの発生現象を説明するための図である。
【図5】従来の自動車内装品のクッション材のモレの発生現象を説明するための図である。
【符号の説明】
1 自動車内装品
2 表皮材
3 基材
4 クッション材
5 当接面
6 端末
7 シール部材
8 空間
9 外表面
10,11 成形金型
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an automobile interior part having a cushioning function and a method of manufacturing the same, and more particularly to an automobile interior part such as an instrument panel of an automobile integrally formed with a skin material, a base material, and a cushion material, and a method of manufacturing the same.
[0002]
[Prior art]
For automotive interior parts such as instrument panels and glove boxes, cushion materials such as urethane foam are inserted between the base material and the skin material to reduce weight, improve decorativeness, and reduce impact in the event of an accident. Are preferably used.
[0003]
Further, in the instrument panel, a molded product in which a cushion material such as urethane foam is interposed only partially is used from the viewpoint of reducing the number of parts. In this way, when the cushion material is partially interposed, as shown in FIG. 3, the skin material 21 is superimposed on the vertical wall 22 of the base material 20 using the shape of the base material 20, and the skin material 21 is formed. The skin material 21 and the base material 20 are sealed by the foaming pressure of the cushion material 23 such as urethane foam inside to prevent the cushion material 23 from oozing out.
[0004]
However, with such a sealing method, it is difficult to completely prevent the cushion material 23 such as urethane foam from oozing out, and for example, as shown in FIGS. 4 and 5, leakage 24 occurs. . FIG. 4 shows a case where the skin material 21 is not pressed well against the base material 20 due to the foaming pressure of the cushion material 23 such as urethane foam or the like, and a gap is formed on the sealing surface, thereby causing leakage. In the one shown in FIG. 5, the skin material 21 does not contact so as to match the shape of the base material 20, and a gap is formed between the terminal of the skin material 21 and the base material 20, and the cushion material 23 is formed from the gap. This shows a case where bleeding and leakage 24 occur. As described above, if there is a misalignment between the skin material 21 and the base material 20, the leakage 24 occurs, so that accurate positioning between the skin material 21 and the base material 20 is required.
[0005]
For this reason, various methods have been disclosed as methods for preventing a cushion material such as urethane foam from seeping out. For example, a method is known in which a protrusion is formed on one of the seal surfaces of a molding die, and when the molds are matched, the seal surface is pressed by the protrusion to seal the seal (for example, see Patent Documents 1 to 6). .
[0006]
[Patent Document 1]
Japanese Utility Model Laid-Open No. 3-77610 [Patent Document 2]
JP-A-5-329849 [Patent Document 3]
JP 62-207608 A [Patent Document 4]
JP-A-62-144910 [Patent Document 5]
Japanese Utility Model Laid-Open No. 1-148314 [Patent Document 6]
Japanese Patent Application Laid-Open No. 7-156163
[Problems to be solved by the invention]
However, in these conventional sealing methods, it is necessary to form a protruding portion on one of them. Further, even when the protruding portion is formed as described above, since there is only one seal surface, if the position of the seal surface is misaligned as described above, leakage may occur. Was.
[0008]
The present invention has been made in view of such problems, and by using a plurality of sealing surfaces between the skin material and the base material, the sealing between the skin material and the base material is reliably performed, and the foaming is performed. An object of the present invention is to provide an automobile interior component in which leakage of a cushion material such as urethane is prevented, and a method of manufacturing the same.
[0009]
[Means for Solving the Problems]
The automobile interior part according to claim 1 according to the present invention for solving the above-mentioned problem, is a cushion formed by foaming a liquid material between a skin material, a base material, and the skin material and the base material. Material, and the interior of the automobile, wherein the skin material and the base material are sealed at the contact surface between the skin material and the base material, and at the end of the skin material The skin material and the base material are sealed with a sealing member interposed therebetween.
The skin material and the base material are sealed at the contact surface, and the terminal of the skin material is also sealed by the sealing member. As described above, since the sealing is performed by the plurality of sealing surfaces, leakage of the cushion material such as urethane foam can be reliably prevented.
[00010]
In addition, in the automobile interior part according to claim 2, in the terminal of the skin material according to claim 1, the skin material is bent, and a space is provided between an outer surface of the bent skin material and the base material. Are formed.
Even if a cushion material such as urethane foam leaks at the end portion of the skin material, the provision of the space first spreads laterally in the space, so that the foaming pressure is greatly reduced. For this reason, the leakage does not occur over the sealing surface between the vertical wall of the base material and the skin material, and leakage of the cushion material can be reliably prevented. Further, even when the position of the sealing surface is shifted, only the amount of bending of the end of the skin material is changed, and the influence on the leakage can be suppressed.
[0011]
According to a third aspect of the present invention, there is provided an automobile interior product according to the first or second aspect, wherein the sealing member is a soft tape having open cells therein.
Sealing can be reliably performed by the sealing member. In addition, since the cells have open cells, the gas generated when the cushion material such as urethane foam is foamed can be efficiently discharged to the outside of the product. Further, the bubbles are small and the cushion material does not pass through. For this reason, only gas escapes at the time of foaming, the sealing surface does not shift due to foaming pressure, and the effect of further preventing leakage of the cushion material can be obtained.
[0012]
Further, in the method for manufacturing an automobile interior product according to claim 4, one of the molds provided with the base material is matched with the other mold provided with the skin, and the mold is provided between the base material and the skin. What is claimed is: 1. A method for manufacturing an automobile interior part in which a liquid material is foamed to form a cushion material, wherein a sealing member is attached to a predetermined position of the base material, and a terminal of the skin material is bonded to the sealing member. By bending the end of the skin material by doing, the skin material and the base material are brought into contact with each other, and the liquid material is sealed so as not to ooze out when the liquid material is foamed. It is.
The skin material and the base material are sealed at the contact surface and also at the end of the skin material, and are sealed at a plurality of sealing surfaces, so that the cushioning material such as urethane foam is reliably prevented from exuding. can do.
[0013]
According to a fifth aspect of the present invention, in the method of manufacturing an automobile interior part according to the fourth aspect, when bending the terminal of the skin material, a space is formed between the bent portion of the terminal of the skin material and the base material. Are formed so as to be formed.
Even if a cushion material such as urethane foam leaks at the end portion of the skin material, the provision of the space first spreads laterally in the space, so that the foaming pressure is greatly reduced. For this reason, the leakage does not occur over the sealing surface between the vertical wall of the base material and the skin material, and leakage of the cushion material can be reliably prevented. Further, even when the position of the sealing material is shifted, only the amount of bending of the end of the skin material is changed, and the influence on the leakage can be suppressed.
[0014]
According to a sixth aspect of the present invention, there is provided a method of manufacturing an automobile interior product according to the third or fourth aspect, wherein the seal member is a soft tape.
Sealing can be reliably performed by the sealing member. In addition, since the cells have open cells, the gas generated when the cushion material such as urethane foam is foamed can be efficiently discharged to the outside of the product. Further, the bubbles are small and the cushion material does not pass through. For this reason, only gas escapes at the time of foaming, the sealing surface does not shift due to foaming pressure, and the effect of preventing the cushion material from oozing out becomes even more remarkable.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
FIG. 1 is a diagram showing a cross section of an example of an embodiment of an automobile interior product according to the present invention. As shown in FIG. 1, an automobile interior component 1 shown in the present embodiment has a skin material 2, a base material 3, and a cushion material formed by foaming a liquid material between the skin material 2 and the base material 3. 4, the skin material 2 and the base material 3 are sealed at the contact surface (vertical wall) 5 between the skin material 2 and the base material 3 and at the end 6 of the skin material 2. 2 and the base material 3 are sealed with a seal member 7 interposed therebetween.
[0017]
The skin material 2 is formed in a predetermined shape in advance by, for example, a powder slush molding method using a PVC resin or the like. The base material 3 is formed of, for example, a metal or a synthetic resin. The cushion material 3 is formed by foaming a liquid material such as urethane foam.
[0018]
The skin material 2 is bent at the terminal 6. And it is adhered and fixed to a seal member 7 attached to the lower surface of the base material 3. A space 8 is formed between the bent outer surface 9 of the terminal 6 and the base material 3.
[0019]
The sealing member 7 is preferably a soft tape having open cells inside. Since there are open cells inside, gas such as CO 2 generated when the cushioning material 4 foams can be efficiently discharged out of the product. Further, since these open cells have a small cell diameter, it is difficult for high-viscosity urethane to pass through, so that the cushion material does not exude. Therefore, when the cushion material 4 is foamed, only the gas passes therethrough, so that the gas does not accumulate inside the skin material 2 and the cushion material can be prevented from oozing out.
[0020]
Next, a method for manufacturing an automobile interior product according to the embodiment will be described with reference to FIG.
[0021]
As shown in FIG. 2A, first, the skin material 2 and the base material 3 which have been molded in advance are set in molding dies 10 and 11, respectively. At this time, the seal member 7 is stuck at a predetermined position. Then, the molding die 11 is slid in the direction indicated by the arrow in the figure.
[0022]
When the molding die 11 is slid in the direction indicated by the arrow in the figure, as shown in FIG. 2B, the terminal 6 of the skin material 2 adheres to the seal member 7 attached to the base material 3. I do. When the molding die 11 is further slid in the direction of the arrow, the terminal 6 of the skin material 2 is bent as shown in FIG. At this time, since the seal member 7 is stuck at a position slightly away from the contact surface 5 between the skin material 2 and the base material 3, a space 8 is formed between the skin material 4 and the base material 3. . Then, after the molding dies 10 and 11 are matched, a liquid raw material such as urethane foam is supplied. Then, due to the foaming pressure at the time of foaming, the skin material 2 is pressed against the contact surface 5 with the base material 3 to be sealed.
[0023]
In this way, by matching the molding dies 10 and 11, the end 6 of the skin material 2 is sealed by the sealing member 7 and also by the contact surface 5 between the skin material 2 and the base material 3. It becomes possible. In addition, by performing the mold matching, the terminal 6 of the skin material 2 is bonded and fixed to the sealing member 7 in a bent state, and the space 8 can be formed between the terminal 6 and the base material 3. Even if the foam spreads over the seal member 7 during foaming, it first spreads laterally in the space 8, so that the foaming pressure is greatly reduced, and the contact surface 5 between the skin material 2 and the base material 3. Can be reliably prevented from breaking through and exuding.
[0024]
Further, since the terminal 6 is adhered to the sealing member 7 and bent and fixed, for example, even if the terminal length of the skin material 2 and the shape of the base material 3 are slightly varied, the terminal 6 is bent. Only the amount changes, and even if there is a misalignment, it is possible to prevent the liquid raw material from oozing out.
[0025]
【Example】
Hereinafter, the present invention will be described more specifically with reference to examples.
In the automotive instrument panel, a skin material having a thickness of 1.0 mm and a skin end length of 14 mm made of TPU formed by a powder slush molding method was prepared. The base material used was such that the seal length of the contact surface was 10 mm. A 10 w mm × 5 h mm soft tape (density 0.03 g / cm 3 ) serving as a sealing member was applied to a position 0 to 2 mm away from the vertical wall of the base material. Then, the skin material and the base material are set in a foaming mold, and the molds are matched as shown in FIG. 2 so that two seals at the end of the skin material and the contact surface between the skin material and the base material are provided. An instrument panel was prepared by forming a surface and supplying urethane foam. In this way, 100 instrument panels were produced, but none of the cushioning materials leaked out to the surface of the skin material was confirmed.
[0026]
On the other hand, in the case of the conventional method in which the skin material is pressed against the contact surface with the base material by the foaming pressure of the foam material without using the sealing member, and the sealing surface is formed only at the contact surface, As a result of producing the instrument panel of the book, it was confirmed that the cushion material was exuded from this contact surface in all of the 100 instrument panels.
[0027]
【The invention's effect】
The present invention is configured as described above, and the skin material and the base material are sealed at the contact surface, and the terminal of the skin material is also sealed by the seal member. As described above, since the sealing is performed by the plurality of sealing surfaces, leakage of the cushion material such as urethane foam can be reliably prevented. Also, even if cushioning material such as urethane foam leaks at the end of the skin material, since the space is provided, it first spreads laterally in the space, so the foaming pressure is greatly reduced I do. For this reason, the leakage does not occur over the sealing surface between the vertical wall of the base material and the skin material, and leakage of the cushion material can be reliably prevented. Further, even when the position of the sealing surface is shifted, only the amount of bending of the end of the skin material is changed, and the influence on the leakage can be suppressed. Further, since the seal member is used, the seal can be surely performed. In addition, since the seal member has open cells inside, gas generated when the cushion material such as urethane foam is foamed can be efficiently discharged to the outside of the product. In addition, since the bubbles are small and the cushion material does not pass through, only gas escapes during foaming, the sealing surface does not shift due to the foaming pressure, and the effect of further preventing leakage of the cushion material is obtained.
[Brief description of the drawings]
FIG. 1 is a diagram showing a cross section of an example of an embodiment of an automobile interior product according to the present invention.
FIG. 2 is a diagram for explaining a method of manufacturing an automobile interior product according to the present invention.
FIG. 3 is a view showing the structure of a conventional automobile interior product.
FIG. 4 is a view for explaining a phenomenon of generation of leakage of a cushion material of a conventional automobile interior product.
FIG. 5 is a view for explaining the phenomenon of generation of leakage of a cushion material of a conventional automobile interior product.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Automotive interior goods 2 Skin material 3 Base material 4 Cushion material 5 Contact surface 6 Terminal 7 Seal member 8 Space 9 Outer surface 10,11 Molding die

Claims (6)

表皮材と、基材と、前記表皮材と前記基材の間で液状原料が発泡して形成されたクッション材と、で構成される自動車内装品であって、
前記表皮材と前記基材とが、前記表皮材と前記基材との当接面でシールされているとともに、前記表皮材の端末において前記表皮材と前記基材とがシール部材を介在してシールされていることを特徴とする自動車内装品。
A skin material, a base material, and a cushion material formed by foaming a liquid raw material between the skin material and the base material, which is an automobile interior component comprising:
The skin material and the base material are sealed at a contact surface between the skin material and the base material, and the skin material and the base material are interposed at a terminal of the skin material with a sealing member interposed therebetween. Automotive interior parts characterized by being sealed.
前記表皮材の端末において、前記表皮材が折り曲げられ、折り曲げられた前記表皮材の外表面と前記基材との間に空間が形成されていることを特徴とする請求項1に記載の自動車内装品。The interior of the automobile according to claim 1, wherein, at a terminal of the skin material, the skin material is bent, and a space is formed between an outer surface of the bent skin material and the base material. Goods. 前記シール部材が、内部に連続気泡を有するソフトテープであることを特徴とする請求項1又は2に記載の自動車内装品。The automobile interior part according to claim 1, wherein the seal member is a soft tape having open cells therein. 基材を設けた一方の型に対し、表皮を設けた他方の型を型合せして、前記基材と前記表皮との間で液状原料を発泡させてクッション材を形成する自動車内装品の製造方法であって、
シール部材を前記基材の所定位置に貼付し、前記表皮材の端末を前記シール部材に接着した後、型合せすることによって前記表皮材の端末を折り曲げるとともに、前記表皮材と前記基材とを当接して、前記液状原料の発泡の際に前記液状原料が滲み出ないようにシールすることを特徴とする自動車内装品の製造方法。
Manufacture of automobile interior parts in which one mold provided with a base material is matched with the other mold provided with a skin, and a liquid material is foamed between the base material and the skin to form a cushion material. The method,
A seal member is stuck to a predetermined position of the base material, and after bonding the end of the skin material to the seal member, bending the end of the skin material by matching the mold, and bonding the skin material and the base material. A method for manufacturing an automobile interior part, wherein the sealing is performed so that the liquid material does not seep out when the liquid material is foamed.
前記表皮材の端末を折り曲げる際に、前記表皮材の端末の折り曲げられた部分と前記基材との間に空間が形成されるように型合せすることを特徴とする請求項4に記載の自動車内装品の製造方法。5. The automobile according to claim 4, wherein when the terminal of the skin material is bent, the mold is matched so that a space is formed between the bent portion of the terminal of the skin material and the base material. 6. Manufacturing method of interior goods. 前記シール部材が、ソフトテープであることを特徴とする請求項3又は4に記載の自動車内装品の製造方法。The method for manufacturing an automobile interior part according to claim 3, wherein the seal member is a soft tape.
JP2002377830A 2002-12-26 2002-12-26 Automotive interior trim product and its manufacturing method Pending JP2004202984A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008284871A (en) * 2007-04-16 2008-11-27 Nissan Motor Co Ltd Method for manufacturing foam-molded member with surface skin and foam molded member with surface skin
US10220552B2 (en) 2015-06-03 2019-03-05 Hyundai Motor Company Apparatus and method for manufacturing interior part of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008284871A (en) * 2007-04-16 2008-11-27 Nissan Motor Co Ltd Method for manufacturing foam-molded member with surface skin and foam molded member with surface skin
US10220552B2 (en) 2015-06-03 2019-03-05 Hyundai Motor Company Apparatus and method for manufacturing interior part of vehicle

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