JPH0442109Y2 - - Google Patents
Info
- Publication number
- JPH0442109Y2 JPH0442109Y2 JP1984181792U JP18179284U JPH0442109Y2 JP H0442109 Y2 JPH0442109 Y2 JP H0442109Y2 JP 1984181792 U JP1984181792 U JP 1984181792U JP 18179284 U JP18179284 U JP 18179284U JP H0442109 Y2 JPH0442109 Y2 JP H0442109Y2
- Authority
- JP
- Japan
- Prior art keywords
- fabric
- skin
- backing
- skin material
- elongation rate
- 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
- 239000004744 fabric Substances 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 35
- 239000006260 foam Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 239000002759 woven fabric Substances 0.000 claims description 5
- 210000003491 skin Anatomy 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004759 spandex Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、自動車用内装部品の成形型内におい
て表皮材を溶融樹脂と一体的に接合・成形して作
られた自動車内装用積層成形品に関する。[Detailed description of the invention] [Field of industrial application] This invention is a laminated molded product for automobile interior parts made by integrally bonding and molding a skin material with molten resin in a mold for automobile interior parts. Regarding.
従来、自動車用の内装部品として、例えば自動
車のドアの裏側や天井等には、熱可塑性樹脂によ
る成形基材の表面に布地等の表皮材を接着したも
のが使用されていた。
BACKGROUND ART Conventionally, interior parts for automobiles, such as the back side of automobile doors and ceilings, have been made by bonding a skin material such as cloth to the surface of a molded base material made of thermoplastic resin.
このような部品には、適当な伸びを有する織布
またはニツト、すなわち織り方または編み方によ
り伸縮性を付与した布地、またはスパンデツク
ス、捲縮糸等、元来伸縮性のある繊維からなる布
地を表皮材として使用していたが、内装部品とし
てのソフト感が乏しいために発泡層で裏打ちした
表皮材が用いられるようになり、かつこれを成形
型内において基材樹脂と一体的に接合・成形する
方法も試みられている。 For such parts, use woven or knitted fabrics with appropriate elongation, that is, fabrics that have been given elasticity by weaving or knitting, or fabrics made of fibers that are inherently elastic, such as spandex or crimped yarn. It was originally used as a skin material, but because it lacked a soft feel for interior parts, skin materials lined with a foam layer were used, and this was then integrally bonded and molded with the base resin in a mold. Other methods have also been tried.
しかるに、上記の方法では、射出成形の過程で
基材の溶融樹脂が発泡層内に浸透して、部分的に
または全面的にソフト感が損なわれていたことか
ら、本考案者等は、発泡層を裏打ちした表皮材に
さらに不織布、織布またはニツト等からなるバツ
キング材を接着あるいは融着して積層体とし、こ
れを、基材樹脂とともに一体的に接合・成形した
積層成形品を提案した。
However, in the above method, the molten resin of the base material penetrated into the foam layer during the injection molding process, partially or completely damaging the soft feel. We have proposed a laminate molded product in which a backing material made of non-woven fabric, woven fabric, knit, etc. is further adhered or fused to the skin material that backs the layer to form a laminate, and this is integrally bonded and molded with the base resin. .
かかる積層成形品が従来の製品に比較して手触
りの点で著しく改善されたことは事実であるが、
なお、表皮材とバツキング材の組合せによつては
成形品の凸コーナー部において発泡層が潰れ、感
触が損われることがあるという問題があつた。 Although it is true that such laminated products have a significantly improved feel compared to conventional products,
However, depending on the combination of the skin material and the backing material, there is a problem in that the foam layer may be crushed at the convex corners of the molded product, resulting in a loss of feel.
本考案は、上記の知見に鑑みてなされたもので
あつて、表皮材を溶融樹脂とともに一体的に接合
成形した三次元形状の成形品において、成形圧力
の強弱に関係なく、発泡シート層が潰れておらず
充分ソフトな感触が得られる自動車内装用積層成
形品を提供するものである。 The present invention has been developed in view of the above knowledge, and is based on the idea that, in a three-dimensional molded product in which a skin material is integrally bonded and molded with a molten resin, the foam sheet layer collapses regardless of the strength of the molding pressure. To provide a laminated molded product for automobile interiors that provides a sufficiently soft touch without being soft.
本考案による自動車内装用積層成形品は、
表面側より、織布、不織布またはニツト等より
なる伸縮性のある表皮フアブリツク、発泡シート
層、そしてバツキング材として織布、不織布また
はニツト等よりなる裏打ちフアブリツクを積層し
てなり、該表皮フアブリツクの伸び率は該裏打ち
フアブリツクの伸び率の２ないし10倍であるとこ
ろの表皮材と、
該表皮材の裏面に、好ましくは射出成形または
加熱圧縮成形により、一体的に接合成形された基
材樹脂より成ることを特徴とするものである。
The laminated molded product for automobile interiors according to the present invention includes, from the front side, a stretchable skin fabric made of woven fabric, non-woven fabric, or knit fabric, a foam sheet layer, and a backing fabric made of woven fabric, non-woven fabric, or knit fabric as a backing material. and a skin material whose elongation rate is 2 to 10 times the elongation rate of the backing fabric; It is characterized by being made of a base resin that is bonded and molded.
本考案における表皮フアブリツクとして適する
ものは、弾性率の小さな丸編布またはウレタン弾
性糸もしくは合成樹脂の捲縮糸を用いた織編布等
で、起毛はあつてもなくてもよい。またバツキン
グ材である裏打ちフアブリツクとしては、ナイロ
ン、ポリエステル、アクリロニトリル等の合繊織
物または不織布のなかから弾性率の大きなものが
選択され、起毛はあつてもなくてもよい。
Suitable skin fabrics in the present invention include circular knitted fabrics with a low elastic modulus, woven or knitted fabrics using urethane elastic threads or crimped synthetic resin threads, and may or may not be raised. The backing fabric, which is a backing material, is selected from synthetic fabrics or nonwoven fabrics such as nylon, polyester, and acrylonitrile, and has a high elastic modulus, and may or may not be raised.
本考案における特徴的事項は、表皮フアブリツ
クが伸縮性に富み、その伸び率が裏打ちフアブリ
ツクの伸び率の２ないし10倍である（弾性率は1/
２ないし1/10である）ことである。 The characteristic feature of this invention is that the skin fabric is highly elastic, and its elongation rate is 2 to 10 times that of the lining fabric (the elastic modulus is 1/1).
2 to 1/10).
発泡シート層としては、ポリウレタンフオー
ム、ポリプロピレンフオーム、ポリエチレンフオ
ーム、ポリ塩化ビニルフオーム等の厚さ１ないし
10mmの軟質発泡シートが用いられるが、特にポリ
ウレタンフオームの場合に本考案の効果が顕著で
ある。 The foam sheet layer may be made of polyurethane foam, polypropylene foam, polyethylene foam, polyvinyl chloride foam, etc.
Although a 10 mm flexible foam sheet is used, the effect of the present invention is particularly noticeable in the case of polyurethane foam.
表皮材は、上記の発泡シート層の表面に、伸び
率が裏打ちフアブリツクに比して２ないし10倍大
きく伸縮性に富む（弾性率の小さい）表皮フアブ
リツクを積層被覆し、かつ、発泡シート層の裏面
に、伸び率が表皮フアブリツクに比して1/2ない
し1/10に小さい（弾性率の大きい）裏打ちフアブ
リツクを積層被覆してなる。 The skin material is made by laminating and covering the surface of the above-mentioned foam sheet layer with a highly stretchable skin fabric (low elastic modulus) whose elongation rate is 2 to 10 times greater than that of the lining fabric, and The back surface is laminated with a backing fabric whose elongation rate is 1/2 to 1/10 smaller (higher modulus of elasticity) than the skin fabric.
そして、本考案の積層成形品は、上記の表皮材
の裏面に、基材樹脂を、例えば射出成形または加
熱圧縮成形により、一体的に接合した成形品であ
る。かかる接合成形の際、表皮材は、裏側から溶
融された基材樹脂の圧力を受けても、該圧力の一
部が裏打ちフアブリツクで吸収されるうえに表皮
フアブリツクの伸び率が裏打ちフアブリツクの伸
び率の２ないし10倍であるので、成形圧力が緩和
された段階において充分に変形することができ
る。 The laminate molded product of the present invention is a molded product in which a base resin is integrally bonded to the back surface of the above skin material by, for example, injection molding or hot compression molding. During such joint molding, even if the skin material is subjected to pressure from the molten base resin from the back side, a portion of this pressure is absorbed by the lining fabric, and the elongation rate of the skin fabric is equal to the elongation rate of the lining fabric. Since it is 2 to 10 times as large as the molding pressure, it can be sufficiently deformed when the molding pressure is relaxed.
したがつて、表皮材の下側の発泡シート層も、
残留歪をあまり残さずに、厚肉層の本来的形態を
保持することができ、特に積層成形品の凸コーナ
ー部において、その形態保持効果は顕著で、発泡
シート層が押し潰される割合が大変小さなものと
なる。この点より、表皮フアブリツクの伸び率は
裏打ちフアブリツクの伸び率の２ないし10倍であ
ることが必要とされ、伸び率が２倍未満であると
きは、上述の形態保持効果が得られず、一方伸び
率が10倍を越えるときは、表皮の弾力性が失われ
る。 Therefore, the foam sheet layer under the skin material also
It is possible to maintain the original shape of the thick layer without leaving much residual strain, and the shape retention effect is particularly noticeable in the convex corners of the laminate molded product, and the foam sheet layer is crushed at a high rate. It becomes something small. From this point of view, the elongation rate of the skin fabric needs to be 2 to 10 times the elongation rate of the lining fabric; if the elongation rate is less than 2 times, the above-mentioned shape retention effect cannot be obtained; When the elongation rate exceeds 10 times, the elasticity of the epidermis is lost.
なお本考案の表皮材は射出成形金型内で基材と
一体化されるのが一般的であるが、圧縮成形法や
スタンピング成形法の場合には、表皮材を金型に
密着した後、加熱して軟化溶融させたペレツト状
または板状の樹脂をキヤビテイ内に投入し、型締
めして、さらに加熱圧縮することにより樹脂と一
体成形することもできる。 The skin material of this invention is generally integrated with the base material in the injection mold, but in the case of compression molding or stamping molding, after the skin material is tightly attached to the mold, It is also possible to mold integrally with the resin by charging a pellet-like or plate-like resin that has been softened and melted by heating into the cavity, clamping the mold, and further heating and compressing it.
次に、図面を参照して本考案の実施例を説明す
る。
Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本考案の一実施例の部分断面図を表わ
し、１は表皮フアブリツク、２発泡シート層、３
はバツキング材としての裏打ちフアブリツクを示
し、これらが積層されて表皮材４を構成してい
る。 FIG. 1 shows a partial cross-sectional view of one embodiment of the present invention, in which 1 is a skin fabric, 2 is a foam sheet layer, and 3 is a foamed sheet layer.
indicates a backing fabric as a backing material, which is laminated to form the skin material 4.
表皮フアブリツク１にはスパンデツクスの丸編
布を用い、１cm幅の布片に１Kgの荷重を加えた場
合の伸びは120ないし140％である。一方、バツキ
ング材としての裏打ちフアブリツク３にはポリエ
ステル一般糸からなるトリコツト布地が用いら
れ、上記と同じ条件での伸び率は20％である。表
皮フアブリツクＡと裏打ちフアブリツクＢとにお
ける伸び率と応力との関係を定性的に示したもの
である。 A circular knitted spandex fabric is used for the skin fabric 1, and when a load of 1 kg is applied to a 1 cm wide piece of fabric, the elongation is 120 to 140%. On the other hand, the backing fabric 3 as a backing material is made of tricot fabric made of general polyester yarn, and has an elongation rate of 20% under the same conditions as above. This figure qualitatively shows the relationship between elongation and stress in skin fabric A and lining fabric B.
また発泡シート層２には密度0.02ないし0.05
ｇ／cm3、厚さ１ないし10mmのポリウレタンフオー
ムを使用した。 In addition, the foam sheet layer 2 has a density of 0.02 to 0.05.
Polyurethane foam of g/cm 3 and thickness of 1 to 10 mm was used.
上記の表皮材４を第３図に示す射出成形金型の
可動型５の上に取付け、可動型５と固定型７を密
着させた後キヤビテイスプルー８からポリプロピ
レンまたはABSの溶融樹脂を射出注入し、賦
形・冷却・固化させると、表皮材４と基材樹脂９
が一体的に成形される。 The above skin material 4 is attached to the movable mold 5 of the injection mold shown in Fig. 3, and after the movable mold 5 and the fixed mold 7 are brought into close contact, molten resin of polypropylene or ABS is injected from the cavity sprue 8. When shaped, cooled, and solidified, the skin material 4 and the base resin 9 are formed.
are integrally molded.
第４図は本考案による積層成形品の断面図を表
わし、裏打ちフアブリツク３と基材樹脂９とがア
ンカー効果により接合しており、充分な剥離強度
を有している。また基材樹脂９により形成された
凸コーナー部６においても表皮フアブリツク１の
弾性率が小さいため残留応力も少なく、そのため
発泡シート層２の押し潰される割合が小さく、製
品として充分ソフトな感触を得ることができる。 FIG. 4 shows a cross-sectional view of a laminated molded product according to the present invention, in which the backing fabric 3 and the base resin 9 are bonded by an anchor effect, and have sufficient peel strength. In addition, since the elastic modulus of the skin fabric 1 is small in the convex corner portion 6 formed by the base resin 9, residual stress is also small, and therefore the proportion of the foamed sheet layer 2 being crushed is small, resulting in a sufficiently soft feel as a product. be able to.
これに対して、第５図は表皮フアブリツク１と
裏打ちフアブリツク３の伸び率との間に大きな差
のない表皮材４′を使用した成形品の断面図を示
し、基材樹脂９により形成された凸コーナー部６
において、ナイロン製トリコツトからなる表皮フ
アブリツク１′の残留応力が大きいため、発泡シ
ート層２の押し潰される割合が非常に大きく、ソ
フト感のある製品を得ることができない。 On the other hand, FIG. 5 shows a cross-sectional view of a molded product using a skin material 4' in which there is no large difference in elongation between the skin fabric 1 and the backing fabric 3. Convex corner part 6
In this case, since the residual stress in the skin fabric 1' made of nylon tricot is large, the foamed sheet layer 2 is crushed at a very high rate, making it impossible to obtain a product with a soft feel.
以上の説明よりわかるように、本考案による積
層成形品は、表皮材の表面側に、裏面側のバツキ
ング材に比較して伸び率２ないし10倍大きいフア
ブリツクを用いて成るので、三次元形状に射出成
形された成形品において、特に凸コーナー部にお
いて、表皮材中央の発泡シート層が厚肉層の本来
的形態を保持することができ、押し潰される割合
が小さく、成形品の表面はソフトな感触が損なわ
れないものとなる。
As can be seen from the above explanation, the laminated molded product according to the present invention uses fabric on the front side of the skin material that has an elongation rate of 2 to 10 times that of the backing material on the back side, so it can be formed into a three-dimensional shape. In injection molded products, especially at convex corners, the foam sheet layer at the center of the skin material can maintain its original shape as a thick layer, reducing the chance of crushing and creating a soft surface of the molded product. The feel remains intact.
かかる効果に加え、裏打ちフアブリツクによつ
て溶融された射出樹脂が発泡シート層に浸透する
のを防止することもできる。従つて、本考案によ
れば、自動車用内装部品として品質のきわめて高
いものを提供することができる。 In addition to this effect, the backing fabric can also prevent molten injection resin from penetrating the foam sheet layer. Therefore, according to the present invention, extremely high quality automobile interior parts can be provided.
第１図は本考案に用いる表皮材の断面図を表わ
し、第２図はフアブリツクの伸びと応力との関係
を示すグラフを表わし、第３図は金型内における
成形品の断面図を表わし、第４図は本考案による
積層成形品の断面図を表わし、第５図は従来の表
皮材を用いた成形品の断面図を表わす。
図中、１……表皮フアブリツク、２……発泡シ
ート層、３……裏打ちフアブリツク、４……表皮
材、５……可動型、６……凸コーナー部、７……
固定型、８……キヤビテイスプルー、９……基材
樹脂。
FIG. 1 shows a cross-sectional view of the skin material used in the present invention, FIG. 2 shows a graph showing the relationship between fabric elongation and stress, and FIG. 3 shows a cross-sectional view of the molded product in the mold. FIG. 4 shows a sectional view of a laminated molded product according to the present invention, and FIG. 5 shows a sectional view of a molded product using a conventional skin material. In the figure, 1...Skin fabric, 2...Foamed sheet layer, 3...Backing fabric, 4...Skin material, 5...Movable mold, 6...Convex corner portion, 7...
Fixed type, 8... Cavity sprue, 9... Base resin.
Claims (1)
なる伸縮性のある表皮フアブリツク、発泡シート
層、そしてバツキング材として織布、不織布また
はニツト等よりなる裏打ちフアブリツクを積層し
てなり、該表皮フアブリツクの伸び率は該裏打ち
フアブリツクの伸び率の２ないし10倍であるとこ
ろの表皮材と、 該表皮材の裏面に一体的に接合成形された基材
樹脂より成ることを特徴とする自動車内装用積層
成形品。[Scope of Claim for Utility Model Registration] From the front side, a stretchable skin fabric made of woven fabric, non-woven fabric, knitted fabric, etc., a foam sheet layer, and a backing fabric made of woven fabric, non-woven fabric, knitted fabric, etc. as a backing material are laminated. comprising a skin material whose elongation rate is 2 to 10 times the elongation rate of the backing fabric, and a base resin integrally bonded and molded to the back surface of the skin fabric. Laminated molded products for automobile interiors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984181792U JPH0442109Y2 (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984181792U JPH0442109Y2 (en) | 1984-11-30 | 1984-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6195518U JPS6195518U (en) | 1986-06-19 |
| JPH0442109Y2 true JPH0442109Y2 (en) | 1992-10-05 |
Family
ID=30739332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984181792U Expired JPH0442109Y2 (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442109Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11192324B2 (en) | 2017-06-09 | 2021-12-07 | Seiren Co., Ltd. | Composite material for vehicle interior |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0620657Y2 (en) * | 1989-03-29 | 1994-06-01 | 河西工業株式会社 | Interior parts for automobiles |
| JP2001301074A (en) * | 2000-04-21 | 2001-10-30 | Shigeru Co Ltd | Laminated molded article and method for manufacturing the same |
| JP4806133B2 (en) * | 2001-05-31 | 2011-11-02 | テイ・エス テック株式会社 | Molding apparatus, molding method and vehicle interior molded product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155286A (en) * | 1978-05-30 | 1979-12-07 | Kohkoku Chem Ind | Skin material* and its manufacture |
| JPS6114944A (en) * | 1984-06-30 | 1986-01-23 | 豊田合成株式会社 | Resin molded shape with foamed sheet |
-
1984
- 1984-11-30 JP JP1984181792U patent/JPH0442109Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155286A (en) * | 1978-05-30 | 1979-12-07 | Kohkoku Chem Ind | Skin material* and its manufacture |
| JPS6114944A (en) * | 1984-06-30 | 1986-01-23 | 豊田合成株式会社 | Resin molded shape with foamed sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11192324B2 (en) | 2017-06-09 | 2021-12-07 | Seiren Co., Ltd. | Composite material for vehicle interior |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6195518U (en) | 1986-06-19 |
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