JPH0456742B2 - - Google Patents
Info
- Publication number
- JPH0456742B2 JPH0456742B2 JP11282584A JP11282584A JPH0456742B2 JP H0456742 B2 JPH0456742 B2 JP H0456742B2 JP 11282584 A JP11282584 A JP 11282584A JP 11282584 A JP11282584 A JP 11282584A JP H0456742 B2 JPH0456742 B2 JP H0456742B2
- Authority
- JP
- Japan
- Prior art keywords
- urethane
- molding
- felt
- pad material
- semi
- 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
Links
- 239000000463 material Substances 0.000 claims description 48
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000000465 moulding Methods 0.000 claims description 22
- 239000011162 core material Substances 0.000 claims description 20
- 238000007666 vacuum forming Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000010097 foam moulding Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
《発明の分野》
この発明は自動車用内装部品に係り、特にドア
トリム等のドアウエスト部のような増厚部位にモ
ールド成形されたパツド材を用い、表皮材を真空
成形により一体貼着した自動車用内装部品に関す
る。[Detailed Description of the Invention] <<Field of the Invention>> The present invention relates to automobile interior parts, and in particular uses a pad material molded to thickened areas such as the door waist portion of a door trim, etc., and vacuum-forms the skin material. This invention relates to automotive interior parts that are integrally bonded together.
《従来技術とその問題点》
自動車用内装部品、例えばドアトリムなどでは
乗員の肩がぶつかるドアウエスト部に緩衝効果を
持たせるため、このドアウエスト部を通常肉厚に
形成している。<Prior Art and its Problems> In automobile interior parts, such as door trims, the door waist portion, which the shoulders of occupants collide with, is usually formed thick in order to provide a cushioning effect.
これらドアトリムのように増厚部位を有する内
装部品を製造する方法のうち、最も一般的な従来
技術としてウレタン樹脂等の発泡成形方法があ
る。 Among these methods of manufacturing interior parts having thickened portions such as door trims, the most common conventional technique is a method of foam molding of urethane resin or the like.
この成形方法はまずシリコン樹脂型に表皮形成
用のウレタン樹脂をコーテイングし、乾燥させて
表皮を形成した後、上記シリコン樹脂型を発泡成
形型にセツトし、その後ウレタン発泡性混合液を
表皮面に注入し、芯材をセツトするとともに閉型
にする。ウレタン発泡反応が完了した後、これら
芯材と発泡体それに表皮材が一体に成形された製
品を型から取り出すというものである。 This molding method involves first coating a silicone resin mold with urethane resin for forming the skin, drying it to form a skin, then setting the silicone resin mold in a foaming mold, and then applying a urethane foaming mixture onto the skin surface. Inject, set the core material and close the mold. After the urethane foaming reaction is completed, the product in which the core material, foam, and skin material are integrally molded is removed from the mold.
しかしながら上述した発泡成形方法は材料費が
かさむうえに工数がかかり、コスト的に高く経済
的なものではなかつた。しかも表皮面に通称ボイ
ドと呼ばれる微細な孔が穿き外観不良をもたらす
ことが多く、このボイド発生を防止すためには綿
密な成形条件並びにウレタンの組成配合を管理す
る必要があり、極めて困難な作業を伴うなどの欠
点があつた。 However, the above-mentioned foam molding method requires high material costs and many man-hours, and is not economical. Furthermore, minute holes, commonly called voids, often form on the surface of the skin, resulting in poor appearance.To prevent these voids from occurring, it is necessary to carefully control molding conditions and the composition of the urethane, which is an extremely difficult task. There were some drawbacks, such as:
そのため最近では真空成形により芯材に表皮材
を貼着して内装部品を得る方法が注目されてい
る。 Therefore, recently, a method of obtaining interior parts by attaching a skin material to a core material by vacuum forming has been attracting attention.
この方法は、予め所要形状に成形されたボード
などの芯材の一部にモールド成形されたウレタン
パツド材を接着し、それらの上面にPVCレザー
などの非通気性の表皮材を真空成形により貼着す
るというものである。 In this method, a molded urethane pad material is adhered to a part of a core material such as a board that has been pre-formed into the desired shape, and a non-breathable skin material such as PVC leather is attached to the top surface by vacuum forming. The idea is to do so.
しかしながら、上記モールド成形されたウレタ
ンパツド材は剛性がないので、芯材上に接着させ
る際作業性が悪いという欠点があるとともに、ウ
レタンパツド材の成形後の熱収縮が大きく、収縮
歪みが生じたり、また接着剤によりパツド材が膨
潤してしまう等、結果として表皮材にシワ、タル
ミが生じ、見栄えが悪くなるという問題もあつ
た。しかも、真空成形時、パツド材に剛性がない
ので、芯材表面に形成されている凹凸がパツド材
を通じてそのまま表皮材に現出し、美観を損うと
いう不具合もあつた。 However, since the above-mentioned molded urethane pad material lacks rigidity, it has the drawback of poor workability when bonded onto the core material, and the heat shrinkage of the urethane pad material after molding is large, causing shrinkage distortion and There was also the problem that the pad material swelled due to the adhesive, resulting in wrinkles and sagging in the skin material, resulting in poor appearance. Moreover, since the pad material lacks rigidity during vacuum forming, the unevenness formed on the surface of the core material passes through the pad material and directly appears on the skin material, resulting in an unsightly appearance.
《発明の目的》
この発明はこのような事情に鑑みてなされたも
ので、その目的とするところは、製造コストが安
く、作業性を向上し、しかも見栄えも良好な自動
車用内装部品を提供することである。《Objective of the Invention》 This invention was made in view of the above circumstances, and its purpose is to provide an automobile interior part that is low in manufacturing cost, improves workability, and has a good appearance. That's true.
《発明の構成と効果》
この目的を達成させるために、この発明は、未
反応の熱硬化性樹脂を含浸させたセミキユアフエ
ルトと低温成形用ウレタンとを加熱プレスにより
一体成形したパツド材を芯材上に貼着し、それら
の上面に接着剤を介して非通気性表皮材を真空成
形により貼合せ、一体的に形成した自動車用内装
部品において、前記パツド材を構成するセミキユ
アフエルトと、低温成形用ウレタンとの間にシー
ト状布地が介挿されていることを特徴とする自動
車用内装部品であつて、従来のウレタン発泡成形
方法に比べれば遥かに製造コストが廉価であり、
モールド成形されたウレタンパツド材を使用した
従来例に比べても、安価なセミキユアフエルトを
用いているのでコストダウンを図れるとともに、
硬化させたフエルトの剛性により作業性は著しく
向上し、芯材の表面に形成される凹凸部に対して
も、この剛性フエルトが壁の役目をし、表皮材に
影響を与えることがないうえ、ウレタンの熱収縮
についても硬化フエルトの存在により表皮材にシ
ワ、タルミが生じることがなく、美観上好ましい
ものである。《Structure and Effects of the Invention》 In order to achieve this object, the present invention provides a pad material that is integrally formed by heat pressing semi-cured felt impregnated with an unreacted thermosetting resin and urethane for low-temperature molding. A semi-cured felt constituting the pad material in an automobile interior part integrally formed by pasting on a core material and pasting a non-breathable skin material on the upper surface of the core material by vacuum forming via an adhesive. and urethane for low-temperature molding, and the manufacturing cost is much lower than that of the conventional urethane foam molding method.
Compared to conventional models that use molded urethane pad material, the use of semi-cured felt makes it possible to reduce costs.
The rigidity of the hardened felt significantly improves workability, and the rigid felt acts as a wall against the unevenness formed on the surface of the core material, and does not affect the surface material. With regard to heat shrinkage of urethane, the presence of hardened felt prevents wrinkles and sagging on the skin material, which is aesthetically pleasing.
また、セミキユアフエルトと低温成形用ウレタ
ンとを加熱プレスにより一体成形する際、ウレタ
ンの断熱性により、ウレタンに対向するフエルト
面に凹凸が形成されるとともに硬化のバラツキが
生じる。従つて、真空成形により負圧をかけた場
合、上記フエルト面には硬化のバラツキにより、
さらに凹凸が形成されてしまうので結果的にフエ
ルト面には熱圧成形時に生じる凹凸と、真空成形
時に生じる凹凸が形成される。よつて、これらす
べての凹凸が表皮材の表面に現れ、非常に見栄え
の悪い、しかも手触りも良くないものとなるが、
本発明の如くセミキユアフエルトと低温成形用ウ
レタンとの間にシート状布地を介挿させた場合、
最終製品の表面に凹凸が全く発生せず、外観的に
良好な装飾効果のある、しかも手触りも良い製品
が作られる。 Further, when semi-cured felt and urethane for low-temperature molding are integrally molded by hot pressing, the heat insulating properties of urethane cause unevenness to be formed on the felt surface facing the urethane, and also to cause variations in curing. Therefore, when negative pressure is applied during vacuum forming, the above-mentioned felt surface will have uneven hardening.
Furthermore, since unevenness is formed, as a result, the felt surface has unevenness that occurs during hot press molding and unevenness that occurs during vacuum forming. As a result, all these irregularities appear on the surface of the skin material, giving it a very poor appearance and poor feel.
When a sheet-like fabric is inserted between the semi-cured felt and the urethane for low-temperature molding as in the present invention,
To produce a product that has no unevenness at all on the surface of the final product, has a good decorative effect in appearance, and is also pleasant to the touch.
《実施例の説明》
以下、本発明の実施例について添付図面を参照
しながら詳細に説明する。第１図ないし第５図
は、本発明による自動車用内装部品をドアトリム
に適用した例を示す。第１図は、ドアトリム１の
一部を切欠した状態を示す斜視図である。<<Description of Examples>> Examples of the present invention will be described in detail below with reference to the accompanying drawings. 1 to 5 show examples in which the automotive interior parts of the present invention are applied to door trims. FIG. 1 is a perspective view showing a partially cut away state of the door trim 1. As shown in FIG.
このドアトリム１は、芯材２とパツド材３と表
皮材４とから構成され、さらに詳しくは上記芯材
２はポリプロピレンと木粉とを混合した複合材を
シート状に押出し成形し、該シートを加熱軟化さ
せた後所要形状にプレス成形したもので、表皮材
４は非通気性のPVCシートで、この下面に適度
の緩衝性を与えるため、PVC発泡シート６を裏
打ちしたものが用いられている。この表皮材４は
上記芯材２およびパツド材３の上面に渡つて、接
着剤層７を介して真空貼着加工により貼合わされ
ている。なお符号８はドアトリム１に装着されて
いるアームレストである。 This door trim 1 is composed of a core material 2, a pad material 3, and a skin material 4. More specifically, the core material 2 is made by extruding a composite material of polypropylene and wood flour into a sheet shape. It is heated and softened and then press-molded into the desired shape.The skin material 4 is a non-breathable PVC sheet, and in order to provide appropriate cushioning properties to the bottom surface, a PVC foam sheet 6 is used as a lining. . This skin material 4 is bonded to the upper surfaces of the core material 2 and pad material 3 via an adhesive layer 7 by vacuum bonding. Note that the reference numeral 8 is an armrest attached to the door trim 1.
なお、上記パツド材３はドアトリム１のドアウ
エスト部１ａに適用されている。 Note that the pad material 3 is applied to the door waist portion 1a of the door trim 1.
次にこのパツド材３の構造について説明する。
第２図はパツド材３の成形前の状態を示し、第３
図は成形時の状態を示している。 Next, the structure of this pad material 3 will be explained.
Figure 2 shows the state of the pad material 3 before molding;
The figure shows the state during molding.
図面で明らかなようにパツド材３は未反応のフ
エノール樹脂を含浸させたセミキユアフエルト９
と、低温成形用ウレタン１０との間にシート状布
地１１を介挿させた後、加熱プレス金型１２，１
３により所要形状に一体成形されている。図中１
２ａ，１３ａは金型１２，１３に埋設されたヒー
タである。 As is clear from the drawing, the pad material 3 is semi-cured felt 9 impregnated with unreacted phenolic resin.
After inserting the sheet-like fabric 11 between the urethane 10 and the urethane 10 for low-temperature molding, the hot press molds 12,1
3, it is integrally molded into the desired shape. 1 in the diagram
2a and 13a are heaters embedded in the molds 12 and 13.
この熱圧成形によりセミキユアフエルト９に含
浸されているフエノール樹脂が硬化し、硬化フエ
ルト９′が得られ、従つてパツド材３の剛性は保
証される。また、低温成形用ウレタン１０とセミ
キユアフエルト９だけを熱圧成形した場合、ウレ
タン１０の断熱性により、ウレタン１０に対向す
る硬化フエルト面９′ａに凹凸が形成されるとと
もに硬化のバラツキが生じる。従つて真空成形
時、負圧をかけると、上記硬化フエルト面９′ａ
にはこの硬化のバラツキにより、さらに凹凸が形
成され、結果的にこの硬化フエルト面９′ａには、
熱圧成形時に生じる凹凸と、真空成形時に生じる
凹凸とが形成される。よつてこれらすべての凹凸
が表皮材４の表面にそのまま現れ、外観上非常に
見栄えの悪いものとなるが、本発明の如くセミキ
ユアフエルト９と低温成形用ウレタン１０との間
にシート状布地１１を介挿させた場合、真空成形
時、負圧をかけても、表皮材４の表面に凹凸が現
れず、外観上良好な、しかも感触面でも優れた製
品を得ることができる。 By this hot-press molding, the phenolic resin impregnated in the semi-cured felt 9 is cured, and a cured felt 9' is obtained, so that the rigidity of the pad material 3 is guaranteed. Furthermore, when only the urethane 10 for low-temperature molding and the semi-cured felt 9 are hot-press molded, due to the heat insulating properties of the urethane 10, irregularities are formed on the cured felt surface 9'a facing the urethane 10, and variations in curing are also caused. arise. Therefore, when negative pressure is applied during vacuum forming, the hardened felt surface 9'a
Due to this variation in hardening, more unevenness is formed on the hardened felt surface 9'a.
The unevenness that occurs during hot press molding and the unevenness that occurs during vacuum forming are formed. Therefore, all these irregularities appear as they are on the surface of the skin material 4, resulting in a very unsightly appearance. However, as in the present invention, a sheet of fabric is used between the semi-cured felt 9 and the urethane for low temperature molding 10. 11, even when negative pressure is applied during vacuum forming, no unevenness appears on the surface of the skin material 4, and a product with good appearance and excellent feel can be obtained.
その理由としては、真空成形による負圧時、も
し硬化フエルト９′ａに凹凸が形成されたとして
も、シート状布地１１の張力により上記凹凸が押
圧され、表皮材４の表面に影響を及ぼさないか、
またはシート状布地１１の存在により、フエルト
９に含浸されているフエノール樹脂の硬化反応が
促進され、硬化のバラツキを防止できる等が考え
られる。 The reason for this is that even if irregularities are formed on the hardened felt 9'a during negative pressure during vacuum forming, the irregularities are pressed by the tension of the sheet-like fabric 11 and do not affect the surface of the skin material 4. mosquito,
Alternatively, it is conceivable that the presence of the sheet-like fabric 11 accelerates the curing reaction of the phenolic resin impregnated into the felt 9, thereby preventing variations in curing.
何れの理由にせよ、結果的に製品の表面に凹凸
が現れず装飾面で優れた、しかも感触上も良好な
製品が得られることが判明した。 Regardless of the reason, it has been found that as a result, a product with excellent decoration and a good feel can be obtained without any unevenness appearing on the surface of the product.
従つて、シート状布地１１をセミキユアフエル
ト９と低温成形ウレタン１０との間に介挿させる
という簡単な構成でありながら、本発明の効果は
大きいものである。 Therefore, although the structure is simple in that the sheet-like fabric 11 is inserted between the semi-cured felt 9 and the low-temperature molded urethane 10, the effects of the present invention are significant.
次に、第４図、第５図を基にドアトリム１の製
造工程について説明する。 Next, the manufacturing process of the door trim 1 will be explained based on FIGS. 4 and 5.
第４図は真空成形前の状態を示し、第５図は真
空成形時の状態を示している。 FIG. 4 shows the state before vacuum forming, and FIG. 5 shows the state during vacuum forming.
まずパツド材３を接着して芯材２を真空成形型
１４上に載置する。この成形型１４に真空成形用
の開口１４ａが適宜箇所に設けられ、吸引管１５
を通じて真空ポンプ１６に接続されている。 First, the pad material 3 is adhered and the core material 2 is placed on the vacuum mold 14. Openings 14a for vacuum forming are provided at appropriate locations in this mold 14, and suction pipes 15
It is connected to the vacuum pump 16 through.
また芯材２にも真空成形用の開口２ａが予め複
数個設けられている。 Further, the core material 2 is also provided with a plurality of openings 2a for vacuum forming in advance.
さてこれら芯材２およびパツド材３の上面に接
着剤層７をコーテイングにより形成し、その後プ
レヒート処理で軟化させた表皮材４を上記芯材
２、パツド材３の上面に載置する。そしてクラン
プ装置１７により製品外周をシールするととも
に、真空ポンプ１６を作動させ、芯材２と表皮材
４との間に存在するエアを吸引し、芯材２および
パツド材３に対して表皮材４を貼着させる（第５
図参照）。 An adhesive layer 7 is then formed on the upper surfaces of the core material 2 and pad materials 3 by coating, and then a skin material 4 softened by preheating treatment is placed on the upper surfaces of the core material 2 and pad materials 3. Then, the clamp device 17 seals the outer periphery of the product, and the vacuum pump 16 is activated to suck air present between the core material 2 and the skin material 4, and the skin material 4 is moved against the core material 2 and pad material 3. Paste (5th
(see figure).
上記実施例はドアトリム１に適用したものであ
るが、その他リアコーナ、ボデイサイドなどに適
用しても良く、応用範囲の極めて広い発明であ
る。 Although the above embodiment is applied to the door trim 1, it may also be applied to other areas such as rear corners, body sides, etc., and the invention has an extremely wide range of applications.
第１図ないし第５図は本発明をドアトリムに適
用した実施例を示すもので、第１図は一部を切欠
したドアトリムの斜視図、第２図、第３図はドア
トリムの増厚部位に用いるパツド材の成形工程を
示すもので、第２図は成形前の状態を示す断面
図、第３図は成形時の状態を示す断面図、第４
図、第５図はドアトリムの製造工程を示すもの
で、第４図は成形前の状態を表わす断面図、第５
図は成形時の状態を表わす断面図である。
１……ドアトリム、２……芯材、３……パツド
材、４……表皮材、５……非通気性シート、６…
…発泡シート、７……接着剤層、８……アームレ
スト、９……セミキユアフエルト、１０……低温
成形用ウレタン、１１……シート状布地、１２，
１３……加熱プレス金型、１４……真空成形型、
１５……吸引管、１６……真空ポンプ、１７……
クランプ装置。
Figures 1 to 5 show an embodiment in which the present invention is applied to a door trim. Figure 1 is a partially cutaway perspective view of the door trim, and Figures 2 and 3 show the thickened portion of the door trim. This figure shows the forming process of the pad material used. Fig. 2 is a sectional view showing the state before forming, Fig. 3 is a sectional view showing the state during forming, and Fig. 4 is a sectional view showing the state before forming.
Figures 5 and 5 show the manufacturing process of the door trim. Figure 4 is a sectional view showing the state before molding, and Figure 5 shows the door trim manufacturing process.
The figure is a sectional view showing the state during molding. 1...Door trim, 2...Core material, 3...Pad material, 4...Skin material, 5...Non-breathable sheet, 6...
...Foam sheet, 7...Adhesive layer, 8...Armrest, 9...Semi-cure felt, 10...Urethane for low temperature molding, 11...Sheet fabric, 12,
13...Heating press mold, 14...Vacuum forming mold,
15... Suction pipe, 16... Vacuum pump, 17...
clamping device.
Claims (1)
アフエルトと、低温成形用ウレタンとを加熱成形
により一体成形したパツド材を芯材上に貼着し、
それらの上面に接着剤を介して非通気性表皮材を
真空成形により貼合せ、一体的に形成した自動車
用内装部品において、前記パツド材を構成するセ
ミキユアフエルトと低温成形用ウレタンとの間に
シート状布地が介挿されていることを特徴とする
自動車用内装部品。1. A pad material made by integrally molding semi-cured felt impregnated with unreacted thermosetting resin and urethane for low-temperature molding by heat molding is pasted on the core material,
In an automobile interior part integrally formed by bonding a non-breathable skin material to the upper surface of the pad material by vacuum forming, the gap between the semi-cured felt constituting the pad material and the urethane for low-temperature molding is used. An automobile interior part characterized by having a sheet-like fabric inserted therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11282584A JPS60257244A (en) | 1984-06-01 | 1984-06-01 | Interior part for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11282584A JPS60257244A (en) | 1984-06-01 | 1984-06-01 | Interior part for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60257244A JPS60257244A (en) | 1985-12-19 |
| JPH0456742B2 true JPH0456742B2 (en) | 1992-09-09 |
Family
ID=14596475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11282584A Granted JPS60257244A (en) | 1984-06-01 | 1984-06-01 | Interior part for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60257244A (en) |
-
1984
- 1984-06-01 JP JP11282584A patent/JPS60257244A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60257244A (en) | 1985-12-19 |
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