JPH0528172B2 - - Google Patents
Info
- Publication number
- JPH0528172B2 JPH0528172B2 JP61039024A JP3902486A JPH0528172B2 JP H0528172 B2 JPH0528172 B2 JP H0528172B2 JP 61039024 A JP61039024 A JP 61039024A JP 3902486 A JP3902486 A JP 3902486A JP H0528172 B2 JPH0528172 B2 JP H0528172B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- sheet
- air
- adhesive
- vacuum
- 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.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、非通気性軟質シートを真空成形によ
つてコア材に貼込む方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of attaching a non-air permeable soft sheet to a core material by vacuum forming.
従来の成形物、例えば自動車のインストルメン
トパネルに於けるコア材に対する表皮の貼込み
は、第３Ｂ図に示す如くコア材１３の表面全体
に、幅W2（100〜150μ）、深さＤ（100〜200μ）の溝
１５を一辺W1（２mm）の格子状に設け、第３Ａ図
に示す如く非通気性の軟質シート（表皮シート）
１を反応接着剤２を介してコア材１３表面に当接
し、コア材の各所に設けた真空穴１４を介してエ
アー抜きを施して、積層間のエアーをコア材表面
の格子状溝１５を経て真空穴１４から抜き取りな
がら貼込んでいた。
In conventional molded products, for example, when attaching a skin to a core material in an automobile instrument panel, the entire surface of the core material 13 is coated with a width W 2 (100 to 150 μ) and a depth D ( Grooves 15 (100 to 200μ) are provided in a lattice shape with each side W 1 (2mm), and a non-breathable soft sheet (skin sheet) is formed as shown in Figure 3A.
1 is brought into contact with the surface of the core material 13 via the reactive adhesive 2, and air is vented through the vacuum holes 14 provided at various locations on the core material. Then, it was pasted while being removed from the vacuum hole 14.
従来の貼込み方法に於いては、接着時は主にコ
ア表面の溝１５を通つて真空穴１４からのエアー
抜きが行なわれるが、エアー抜きが不十分である
と、第３Ａ図のP1で示す如きエアー溜りが、表
皮シートと接着剤層との間や接着剤層とコア材と
の間に発生し、又微細なエアー溜りも発生し、こ
れらエアー溜りは熱の影響で膨出し、第３Ｃ図の
Ｍ１，Ｍ２に示す如き膨出部を製品表面に形成す
ることとなつた。
In the conventional pasting method, air is mainly vented from the vacuum hole 14 through the groove 15 on the core surface during adhesion, but if the air is not vented insufficiently, P 1 in Figure 3A. Air pockets as shown in are generated between the skin sheet and the adhesive layer and between the adhesive layer and the core material, and fine air pockets are also generated, and these air pockets expand due to the influence of heat. It was decided to form bulges on the surface of the product as shown by M1 and M2 in FIG. 3C.
そしてエアー抜きを達成するためにコア材表面
の溝を形成する必要上、金型に溝を設ける工作が
必要であつて金型費がかかつてた。また、コア材
と表皮シートが全面接着であるため、接着剤がコ
ア材表面の溝や真空穴を塞いでしまう危険もあ
り、コア材の表面形状がシートとコア材とのすべ
りを阻害して結局表皮シートに引伸ばされた部分
の厚みd1と引伸ばされない部分の厚みd2の肉厚差
を生起することにもなり、又コア材の形状や寸法
によつて、かなりの真空穴が必要となり、穴の金
型への付与（穴の金型へのおり込み）が増大し、
場合によつては手作業で穴明けする必要も生じて
た。 In addition, in order to achieve air removal, it is necessary to form grooves on the surface of the core material, which requires work to create grooves in the mold, which increases the cost of the mold. In addition, since the core material and the skin sheet are fully adhesive, there is a risk that the adhesive will block the grooves and vacuum holes on the surface of the core material, and the surface shape of the core material may inhibit the slippage between the sheet and the core material. Eventually, a difference in thickness between the stretched part d1 and the unstretched part d2 will occur in the skin sheet, and depending on the shape and dimensions of the core material, there will be a considerable amount of vacuum holes. As a result, the number of holes added to the mold (holes entering the mold) increases.
In some cases, it was necessary to drill holes by hand.
本発明は、コア材表面のエアー抜き溝を廃止し
てコア材表面を平滑面とすると共に、コア材表面
の真空穴を少くし、コア材の凸部分に接着剤を塗
布せずに、表皮シートを或程度の張力作用下でコ
ア材に接着するもので、第１図に示す如く、表面
平滑なコア材３の両突出コーナー部Ｃ，Ｃ及び両
コーナー部間にわたる領域を非接着域６とし、両
側面には接着剤２を塗布した接着領域５を設け、
非通気性軟質シート（表皮シート）１をコア材３
表面に当接し、該シート１に引張弾性力Ｆが存在
する状態で接着固定するものである。
The present invention eliminates the air vent grooves on the surface of the core material to make the surface of the core material a smooth surface, reduces the number of vacuum holes on the surface of the core material, and eliminates the need to apply adhesive to the convex portions of the core material. The sheet is bonded to the core material under a certain degree of tension, and as shown in FIG. and adhesive areas 5 coated with adhesive 2 are provided on both sides,
Non-breathable soft sheet (skin sheet) 1 and core material 3
It abuts on the surface and is adhesively fixed in a state where a tensile elastic force F is present on the sheet 1.
非接着領域６に於いてはシート１とコア材３と
は引張り力Ｆのみによつて密接しており、両層間
の空気は矢印ａの如く層間の流動を生じてコア材
３の真空穴から排出され、又使用中の日射熱等に
よる加熱でコア材３と非通気性軟質シート１間の
残存空気が膨張しても該膨張空気はシート１の引
張り力Ｆの圧力の下で流動空気ａとなつて穴４か
ら排出され、シート１には何ら膨出部を形成しな
い。 In the non-adhesive area 6, the sheet 1 and the core material 3 are in close contact with each other only by the tensile force F, and the air between the two layers flows through the vacuum holes in the core material 3 as shown by arrow a. Even if the remaining air between the core material 3 and the non-breathable soft sheet 1 expands due to heating due to solar radiation during use, the expanded air becomes flowing air a under the pressure of the tensile force F of the sheet 1. The liquid is discharged from the hole 4, and no bulge is formed on the sheet 1.
又コア材３のコーナー部Ｃ上でもシート１が引
張り力Ｆによつて滑り作用を有するので、シート
１に生起する肉厚差も減少した。 Also, since the sheet 1 has a sliding action on the corner portion C of the core material 3 due to the tensile force F, the thickness difference occurring in the sheet 1 is also reduced.
第１，２Ａ，２Ｂ図に示す如く、ABS樹脂製
の肉厚３mmの自動車用インストルメントパネルの
表面平滑なコア材３の凸部に、１個の空気抜き穴
４を設け、両側面にウレタン系反応タイプの接着
剤２を塗布し、次に塩化ビニル樹脂の１mm厚非通
気性軟質シート１を加熱して軟化させた後、コア
材３上に当接しながら引張り力を加えてコーナー
部Ｃ上で矢印Ｓの滑り作用を付与して接着した。
両層間の空気は矢印Ａの如く吸引排出した。
As shown in Figures 1, 2A, and 2B, one air vent hole 4 is provided in the convex part of the smooth surface core material 3 of an automobile instrument panel made of ABS resin with a wall thickness of 3 mm, and urethane-based A reactive type adhesive 2 is applied, and then a 1 mm thick non-breathable soft sheet 1 made of vinyl chloride resin is heated to soften it, and then a tensile force is applied while it is in contact with the core material 3, so that it is attached onto the corner portion C. It was glued with the sliding effect shown by arrow S.
The air between both layers was sucked out as shown by arrow A.
得られた貼込みインストルメントパネルにあつ
ては、軟質シート１に引張り弾性力Ｆが内在する
ため、非接着領域６内の両層間には圧接力が作用
して製品として満足な程度の密着性が得られ、又
使用時の日射等の加熱により両層間の残存空気が
膨張してもシート１とコア材３間の流動空気ａと
して適宜に穴４から排出されて表皮シート１には
エアー溜りによる膨出が生じなかつた。 In the obtained pasted instrument panel, since the tensile elastic force F is inherent in the soft sheet 1, pressure contact force acts between the two layers in the non-adhesive area 6, resulting in a satisfactory degree of adhesion as a product. is obtained, and even if the residual air between the two layers expands due to heating such as sunlight during use, it is appropriately discharged from the holes 4 as flowing air a between the sheet 1 and the core material 3, and no air remains in the skin sheet 1. No bulging occurred.
本実施例では表皮シートとして可塑材混入塩化
ビニル樹脂シートを用いたが、軟質且つ非通気性
であれば良く、コア材と接着材と表皮シートとの
接着性を満足する物であれば、材質、形状、成形
条件等により適宜に選択実施出来ることは当然で
ある。 In this example, a plasticizer-mixed vinyl chloride resin sheet was used as the skin sheet, but any material can be used as long as it is soft and non-breathable, and satisfies the adhesion between the core material, adhesive, and skin sheet. It goes without saying that the material can be selected and implemented as appropriate depending on the shape, molding conditions, etc.
コア材への溝格子（溝シボ）付与が廃止出来、
真空穴数の低減により金型費が低減出来る。
Addition of groove lattice (groove texture) to core material can be abolished,
Mold costs can be reduced by reducing the number of vacuum holes.
表皮シートのコア材に対する滑り作用により、
シート肉厚差を減少することが出来る。 Due to the sliding action of the skin sheet on the core material,
It is possible to reduce the difference in sheet thickness.
平滑表面のコア材の凸形状部に表皮シートを引
張弾性力の存在の下に張設しているので、接着材
を介在しないでもシートがコア材に密着し、両層
間のエアー溜りも適宜に流動可能であつてコア材
の少ない真空穴から排出するので、シートのエア
ー溜りによる膨出が解消される。 Since the skin sheet is stretched over the convex portion of the smooth surface of the core material under the presence of tensile elastic force, the sheet adheres to the core material without intervening an adhesive, and air pockets between the two layers are properly eliminated. Since it is discharged from the vacuum hole which is flowable and has a small amount of core material, the bulge caused by air pockets in the sheet is eliminated.
第１図は、本発明の貼込み状態説明用断面図。
第２Ａ，２Ｂ図は、それぞれ本発明の作用説明図
であつて、第２Ａ図はシートをコア材に当接する
状態を、第２Ｂ図はシートをコア材に圧着接合し
た状態を示している。第３Ａ，３Ｂ，３Ｃ図は、
それぞれ従来例の説明図であつて、第３Ａ図は貼
込み断面図であり、第３Ｂ図はコア材の一部断面
斜視図であり、第３Ｃ図は作用説明用断面図であ
る。
１…非通気性軟質シート、２…接着剤、３…コ
ア材、４…真空穴、５…接着領域、６…非接着領
域、Ａ…吸引空気流、ａ…流動空気、Ｆ…引張弾
性力、ｓ…滑り現象。
FIG. 1 is a sectional view for explaining the pasting state of the present invention.
2A and 2B are explanatory diagrams of the operation of the present invention, with FIG. 2A showing a state in which the sheet is in contact with a core material, and FIG. 2B showing a state in which the sheet is pressure-bonded to a core material. Figures 3A, 3B, and 3C are
FIG. 3A is a pasted sectional view, FIG. 3B is a partially sectional perspective view of the core material, and FIG. 3C is a sectional view for explaining the operation. 1... Non-breathable soft sheet, 2... Adhesive, 3... Core material, 4... Vacuum hole, 5... Adhesive area, 6... Non-adhesive area, A... Suction air flow, a... Flowing air, F... Tensile elastic force , s...Slip phenomenon.
Claims (1)
とも１個の真空穴４を有する凸部分６のみを除外
してその他の部分に接着材２を塗布し、非通気性
軟質シート１に引張り力Ｆを付与して該シート１
をコア材３に真空貼込みすることを特徴とする接
着貼込み方法。1 The surface of the core material 3 is configured to be smooth, and only the convex portion 6 having at least one vacuum hole 4 is excluded, the adhesive material 2 is applied to the other portions, and a tensile force is applied to the non-breathable soft sheet 1. Add F to the sheet 1
An adhesive pasting method characterized by vacuum pasting on the core material 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61039024A JPS62198443A (en) | 1986-02-26 | 1986-02-26 | Method of adhesive mounting air non-permeable soft sheet effected by vacuum molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61039024A JPS62198443A (en) | 1986-02-26 | 1986-02-26 | Method of adhesive mounting air non-permeable soft sheet effected by vacuum molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62198443A JPS62198443A (en) | 1987-09-02 |
| JPH0528172B2 true JPH0528172B2 (en) | 1993-04-23 |
Family
ID=12541539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61039024A Granted JPS62198443A (en) | 1986-02-26 | 1986-02-26 | Method of adhesive mounting air non-permeable soft sheet effected by vacuum molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62198443A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6293101B2 (en) * | 2015-09-29 | 2018-03-14 | カルソニックカンセイ株式会社 | Interior parts for vehicles and manufacturing method thereof |
-
1986
- 1986-02-26 JP JP61039024A patent/JPS62198443A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62198443A (en) | 1987-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |