JP2002331538A - Skin material molding method - Google Patents
Skin material molding methodInfo
- Publication number
- JP2002331538A JP2002331538A JP2001142239A JP2001142239A JP2002331538A JP 2002331538 A JP2002331538 A JP 2002331538A JP 2001142239 A JP2001142239 A JP 2001142239A JP 2001142239 A JP2001142239 A JP 2001142239A JP 2002331538 A JP2002331538 A JP 2002331538A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- molding
- mold
- molding surface
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は自動車の内装材、例
えばインストルメントパネル等の表面を覆う表皮材を成
形する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a covering material for covering the surface of an interior material of an automobile, for example, an instrument panel.
【０００２】[0002]
【従来の技術】インストルメントパネル等の表面は触っ
たときの感触を良くするためシボ加工等が施された表皮
材にて覆われている。斯かる表皮材の成形方法として、
加熱した型の成形部内に粉末樹脂原料を投入し、成形面
に接触した樹脂を溶融せしめた後に冷却することで所定
厚の表皮材を成形するスラッシュ成形法が従来から知ら
れている。2. Description of the Related Art The surface of an instrument panel or the like is covered with a skin material that has been subjected to graining or the like in order to improve the feel when touched. As a method of forming such a skin material,
2. Description of the Related Art A slush molding method is known in which a powdered resin raw material is put into a heated mold forming section, a resin in contact with a molding surface is melted, and then cooled to form a skin material having a predetermined thickness.
【０００３】このスラッシュ成形法は一般的にコストが
高いという問題がある。そこで、ＷＯ９３／２３２３７
号公報に開示されるような、液体樹脂材料を成形型の成
形面にスプレーにて塗布し、乾燥せしめて表皮材にする
方法も知られている。[0003] This slush molding method generally has a problem of high cost. Therefore, WO93 / 23237
There is also known a method disclosed in Japanese Patent Laid-Open Publication No. HEI 7-133, in which a liquid resin material is applied to a molding surface of a mold by spraying and dried to form a skin material.
【０００４】[0004]
【発明が解決しようとする課題】上述した成形面にスプ
レー塗布する方法にあっては、成形面に沿って塗布され
た樹脂材料が流れ、コーナ部などの一部に樹脂材料が溜
まってしまう。そして、一般的にインストルメントパネ
ル本体と表皮材との間には、触った際に柔らかい感触を
与えるため、発泡ウレタンなどの発泡体を介在せしめて
いる。しかしながら、表皮材の一部が厚くなっている
と、内側に発泡体が存在しても、表皮材を指で押した時
の柔らかさが部分的に異なってしまい、商品価値が低下
してしまう。In the above-described method of spray coating on the molding surface, the resin material applied along the molding surface flows, and the resin material accumulates in a part of a corner portion or the like. In general, a foam such as urethane foam is interposed between the instrument panel body and the skin material in order to give a soft touch when touched. However, if a part of the skin material is thick, even if foam is present inside, the softness when the skin material is pressed with a finger is partially different, and the commercial value is reduced. .
【０００５】また、スプレーして直ちに硬化する２液混
合タイプの樹脂材料を用いても、硬化するまでの間に樹
脂材料はある程度流れてしまうので、やはり均一な厚み
の表皮材を得ることはできない。[0005] Further, even if a two-liquid mixture type resin material which cures immediately after spraying is used, the resin material flows to some extent before curing, so that a skin material having a uniform thickness cannot be obtained. .
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
本発明に係る表皮材の成形方法は、成形型表面に樹脂材
料をスプレー塗布して表皮材を成形する際に、樹脂材料
が塗布されている面が略水平になるように成形型を傾動
させつつ当該成形面に樹脂材料を塗布するようにした。
なお、前記樹脂材料としては速硬化性の２液混合速硬化
型ポリウレタン樹脂が好ましい。According to the present invention, there is provided a method for molding a skin material, which comprises spraying a resin material onto a surface of a mold to form the skin material. The resin material is applied to the molding surface while tilting the molding die so that the surface to be formed is substantially horizontal.
In addition, as the resin material, a two-component mixing fast-curing polyurethane resin having fast curing properties is preferable.
【０００７】水平状態の成形面に樹脂材料を塗布するこ
とで、材料のダレや他の成形面への垂れを発生すること
がなくなる。By applying the resin material to the molding surface in a horizontal state, it is possible to prevent the material from sagging or sagging on other molding surfaces.
【０００８】[0008]
【発明の実施の形態】以下に本発明の実施の形態を添付
図面に基づいて説明する。図１（ａ）〜（ｅ）は本発明
にかかる表皮材の成形方法の全体を説明した図、図２
（ａ）〜（ｃ）は本発明にかかる表皮材の成形方法のう
ちウレタン樹脂の塗布工程を説明した図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 (a) to 1 (e) are diagrams for explaining the entire method of forming a skin material according to the present invention, and FIG.
(A)-(c) is a figure explaining the urethane resin application process in the molding method of the skin material concerning this invention.
【０００９】本発明にあっては先ず図１（ａ）に示すよ
うに、成形型１の成形面２に離型剤を塗布する。離型剤
としてはワックス系、ソープ系のいずれでもよく、艶ム
ラをなくすために塗布後にウェスによる手拭きを行うの
が好ましい。In the present invention, first, as shown in FIG. 1 (a), a release agent is applied to a molding surface 2 of a molding die 1. The release agent may be any of a wax type and a soap type, and it is preferable to perform hand wiping with a rag after application in order to eliminate gloss unevenness.
【００１０】成形型１はニッケル電鋳型を用い、ベース
３に支柱４を立設し、この支柱４に軸５を介して揺動自
在に支持されている。The molding die 1 uses a nickel electroforming mold, and a support 4 is erected on a base 3. The support 4 is swingably supported on the support 4 via a shaft 5.
【００１１】離型剤を塗布したならば、図１（ｂ）に示
すように、表皮材の最表面となるインモールドペイント
（ＩＭＰ）を塗布する。ＩＭＰは着色の他に耐光性を目
的としており、２０〜６０μｍの厚さで形成する。主成
分はアクリル変性ウレタン樹脂とし分散媒は水、有機溶
剤或いはこれらの混合系のいずれでもよい。After the release agent is applied, as shown in FIG. 1B, an in-mold paint (IMP), which is the outermost surface of the skin material, is applied. IMP aims at light resistance in addition to coloring, and is formed with a thickness of 20 to 60 μm. The main component is an acrylic-modified urethane resin, and the dispersion medium may be water, an organic solvent, or a mixture thereof.
【００１２】ＩＭＰを塗布したならば、図１（ｃ）に示
すように、送風乾燥を行い、この後（ｄ）に示すように
ウレタン樹脂原料を成形面に塗布する。ウレタン樹脂原
料はポリオールとＭＤＩ（メチレンジフェニルジイソシ
アネート）との２液混合タイプで、吐出直前にノズル内
で混合され、塗布後直ちに化学反応を開始し硬化する。
このウレタン層の厚さは約０．９ｍｍとする。After the IMP is applied, air drying is performed as shown in FIG. 1 (c), and then a urethane resin material is applied to the molding surface as shown in (d). The urethane resin raw material is a two-liquid mixture type of a polyol and MDI (methylene diphenyl diisocyanate), and is mixed in a nozzle immediately before discharge, and starts a chemical reaction immediately after application to cure.
The thickness of this urethane layer is about 0.9 mm.
【００１３】上記のウレタン樹脂原料を成形面に塗布す
るにあたっては、図２（ａ）〜（ｂ）に示すように、塗
布する成形面が略水平になるように、成形型１を軸５を
中心に揺動させつつ行う。これによりウレタン樹脂原料
のダレや垂れを防止でき均一な厚さの表皮材が得られ
る。In applying the urethane resin raw material to the molding surface, as shown in FIGS. 2 (a) and 2 (b), the molding die 1 is rotated with the shaft 5 so that the molding surface to be applied is substantially horizontal. Perform while swinging to the center. Thereby, sagging and dripping of the urethane resin raw material can be prevented, and a skin material having a uniform thickness can be obtained.
【００１４】この後、図１（ｅ）に示すように加熱（キ
ュア）にて硬化を促進せしめた後、脱型して表皮材を得
る。尚、発泡体を表皮材の内側に形成するには、表皮材
を別の型内にセットし、発泡樹脂原料を表皮材の内側に
盛り付け、加熱するなどの方法を用いる。Thereafter, as shown in FIG. 1 (e), after the curing is promoted by heating (curing), the mold is removed to obtain a skin material. In order to form the foam inside the skin material, a method is used in which the skin material is set in another mold, and a foamed resin material is placed inside the skin material and heated.
【００１５】図３は成形型の別実施例を示す図であり、
上述した実施例では、成形型１は１方向のみに揺動可能
な構造であったが、この実施例にあってはベース３に支
柱４を立設し、この支柱４に軸５にホルダー６を揺動自
在に支持し、このホルダー６に前記軸５と直交する方向
の軸７を介して成形型１を揺動自在に支持している。こ
のような構成とすることで、成形型１を任意の方向に傾
動せしめることができるので、複雑な形状の成形面にも
対応できる。FIG. 3 is a view showing another embodiment of the molding die.
In the above-described embodiment, the mold 1 has a structure capable of swinging in only one direction. In this embodiment, the support 4 is erected on the base 3 and the holder 5 is mounted on the shaft 5 on the support 4. Is formed so as to be swingable, and the mold 1 is swingably supported by the holder 6 via a shaft 7 in a direction orthogonal to the shaft 5. With such a configuration, the molding die 1 can be tilted in an arbitrary direction, so that it is possible to cope with a molding surface having a complicated shape.
【００１６】尚、実施例では表皮材の原料であるウレタ
ン樹脂を塗布する際にだけ、成形型を揺動する例を示し
たが、ＩＭＰを塗布する際に成形型を揺動させてもよ
い。Although the embodiment shows an example in which the mold is swung only when urethane resin as a raw material of the skin material is applied, the mold may be swung when applying IMP. .
【００１７】[0017]
【発明の効果】以上に説明したように本発明によれば、
成形型に樹脂材料をスプレー塗布することで表皮材を成
形する際に、樹脂材料が塗布されている面が常に水平に
なるように成形型を傾動させつつ塗布を行うようにした
ので、樹脂材料が流れて一箇所に集まることを防止し、
膜厚が均一な表皮材が得られる。したがって、表皮材の
裏側に発泡体を接着して柔らかな感触を持たせる構造と
した場合に、コーナ部などの表皮材の一部が硬く感じる
ことがなく全体に均一な柔らかさを発揮することがで
き、品質の向上に寄与する。According to the present invention as described above,
When forming the skin material by spraying the resin material onto the mold, the resin material is applied while tilting the mold so that the surface on which the resin material is applied is always horizontal. To prevent from flowing and gathering in one place,
A skin material having a uniform film thickness can be obtained. Therefore, when the foam is bonded to the back side of the skin material to give a soft feel, a part of the skin material such as corners does not feel hard and exhibits uniform softness throughout. And contribute to quality improvement.
【図１】本発明にかかる表皮材の成形方法の全体を説明
した図FIG. 1 is a view for explaining an entire method of forming a skin material according to the present invention.
【図２】（ａ）〜（ｃ）は本発明にかかる表皮材の成形
方法のうちウレタン樹脂の塗布工程を説明した図FIGS. 2 (a) to 2 (c) are views for explaining a urethane resin coating step in the method for forming a skin material according to the present invention.
【図３】成形型の別実施例を示す図FIG. 3 is a view showing another embodiment of a molding die.
１…成形型、２…成形面、３…ベース、４…支柱、５…
軸、６…ホルダー、７…軸。DESCRIPTION OF SYMBOLS 1 ... Mold, 2 ... Molding surface, 3 ... Base, 4 ... Prop, 5 ...
Shaft, 6 ... holder, 7 ... shaft.
フロントページの続き (72)発明者 佐藤 航 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 Ｆターム(参考） 4F205 AA42 AM32 GA05 GB01 GC04 GF01 GF25 GN28 Continuation of the front page (72) Inventor Wataru Sato 1-10-1 Shinsayama, Sayama-shi, Saitama Honda Engineering Co., Ltd. F term (reference) 4F205 AA42 AM32 GA05 GB01 GC04 GF01 GF25 GN28
Claims (1)
て表皮材を成形する際に、樹脂材料が塗布される成形面
が略水平になるように成形型を傾動させつつ当該成形面
に塗布することを特徴とする表皮材の成形方法。When a resin material is spray-coated on the surface of a molding die to form a skin material, the resin material is applied to the molding surface while tilting the molding die so that the molding surface is substantially horizontal. A method for forming a skin material, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001142239A JP2002331538A (en) | 2001-05-11 | 2001-05-11 | Skin material molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001142239A JP2002331538A (en) | 2001-05-11 | 2001-05-11 | Skin material molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002331538A true JP2002331538A (en) | 2002-11-19 |
Family
ID=18988578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001142239A Pending JP2002331538A (en) | 2001-05-11 | 2001-05-11 | Skin material molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002331538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10248217B4 (en) * | 2001-10-16 | 2008-11-27 | International Automotive Components Group North America, Inc. (n.d.Ges.d. Staates Delaware), Dearborn | Apparatus and method for making a molded article with a urethane elastomer skin |
-
2001
- 2001-05-11 JP JP2001142239A patent/JP2002331538A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10248217B4 (en) * | 2001-10-16 | 2008-11-27 | International Automotive Components Group North America, Inc. (n.d.Ges.d. Staates Delaware), Dearborn | Apparatus and method for making a molded article with a urethane elastomer skin |
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