JPH05237938A - Bonded structure of interior sticking parts - Google Patents
Bonded structure of interior sticking partsInfo
- Publication number
- JPH05237938A JPH05237938A JP7629092A JP7629092A JPH05237938A JP H05237938 A JPH05237938 A JP H05237938A JP 7629092 A JP7629092 A JP 7629092A JP 7629092 A JP7629092 A JP 7629092A JP H05237938 A JPH05237938 A JP H05237938A
- Authority
- JP
- Japan
- Prior art keywords
- sheet material
- skin material
- parts
- sheet
- skin
- 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.)
- Granted
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は繊維強化樹脂製のシート
材と表皮材とがプレス成形により一体的に貼り合わされ
る内装貼合せ部品に係り、特に、貼り合わされる両者の
接着強度を向上させる技術に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior laminated component in which a sheet material made of fiber reinforced resin and a skin material are integrally laminated by press molding, and particularly, the adhesive strength between the laminated materials is improved. It is about technology.
【０００２】[0002]
【従来の技術】樹脂性のシート材に表皮材を重ね合わせ
るとともに、プレス成形によりそれ等を成形すると同時
に貼り合わせるようにした内装貼合せ部品が知られてい
る。かかる内装貼合せ部品は、軽量であるとともに適度
な剛性および美麗な外観が得られることから、例えば車
両における内装部材や屋内壁或いは建具等の一部品など
として広く利用されている。上記表皮材としては、例え
ば不織布、編布、織布、或いはそれ等で裏打ちされた塩
化ビニルフィルム等の軟質樹脂フィルムなどが用いられ
ている。2. Description of the Related Art Interior laminated components are known in which a resin sheet material is overlaid with a skin material and they are simultaneously formed by press molding. Such an interior laminated component is widely used as, for example, an interior member of a vehicle, an interior wall, a part of a fitting, etc., because it is lightweight and has appropriate rigidity and a beautiful appearance. As the skin material, for example, a non-woven fabric, a knitted fabric, a woven fabric, or a soft resin film such as a vinyl chloride film lined with them is used.
【０００３】一方、上記シート材として、例えば特開昭
６０−１７９２３４号公報等に記載されているように、
ＡＢＳ、ポリエチレン、ポリプロピレン等の熱可塑性樹
脂にグラスファイバーやアラミド繊維等の弾性係数の高
い強化繊維を添加した繊維強化樹脂を、予め樹脂内の繊
維が撓み変形する状態に圧縮して薄いシート状に形成し
た固化シートを利用することが考えられている。すなわ
ち、かかる固化シートは、肉厚が薄くて且つ強度が高い
ため運搬や保管等が容易である一方、加熱により内部の
強化繊維が弾性的に復元することによって肉厚が２〜４
倍程度に膨張するため、その膨張させたものを前記シー
ト材として用いれば良いのである。そして、このような
シート材を表皮材に重ね合わせてプレス成形する場合、
みかけの比重を軽くすることにより軽量化をすると同時
に、荷重に対する曲げ剛性や手で押さえたときの表面弾
力性などの内装貼合せ部品に要求される物性を得る上
で、成形後の肉厚が膨張前の固化シートの肉厚（基板
厚）に対して 1.5〜３倍程度となるような不完全な圧縮
状態で成形することとなる。On the other hand, as the above-mentioned sheet material, for example, as described in JP-A-60-179234,
Fiber reinforced resin made by adding reinforcing fiber with high elastic coefficient such as glass fiber or aramid fiber to thermoplastic resin such as ABS, polyethylene, polypropylene, etc. is compressed into a thin sheet shape in advance so that the fibers in the resin are flexibly deformed. It is considered to use the formed solidified sheet. That is, such a solidified sheet is thin and has high strength, so that it can be easily transported or stored, while the reinforcing fiber inside is elastically restored by heating, so that the thickness is 2 to 4
Since it expands about twice, the expanded material may be used as the sheet material. Then, when such a sheet material is superposed on the skin material and press-molded,
To reduce the weight by reducing the apparent specific gravity, at the same time to obtain the physical properties required for interior laminated parts such as bending rigidity against load and surface elasticity when pressed by hand, the thickness after molding is Molding is performed in an incompletely compressed state that is about 1.5 to 3 times the wall thickness (substrate thickness) of the solidified sheet before expansion.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記した程度
の成形型内における比較的弱い不完全な圧縮状態では、
シート材と表皮材との間での融着や素材の浸入による機
械的接着が充分に行われないため、内装貼合せ部品とし
ての必要な接着強度を確保することが困難であった。こ
れに対し、例えばホットメルトタイプの接着フィルム等
をシート材と表皮材との中間に介在させてプレス成形す
ることにより、確実な接着状態を得ることが可能であ
る。しかし、かかる接着フィルムを用いた場合、接着フ
ィルムをシート材と表皮材との中間に供給する工程が増
えて作業が複雑になることから材料コストだけでなく製
造コストも増大し、加えて、成形しようとする内装貼合
せ部品の形状に比較的複雑な部分があると、接着フィル
ムがその部分の形状変化に追従しきれないため、結果的
に接着ムラを生じるという不都合があった。However, in the comparatively weak imperfect compression state in the mold as described above,
Since the sheet material and the skin material are not sufficiently fused or mechanically bonded by the infiltration of the material, it is difficult to secure the necessary adhesive strength as an interior laminated component. On the other hand, for example, a hot-melt type adhesive film or the like is interposed between the sheet material and the skin material and press-molded, so that a reliable adhesive state can be obtained. However, when such an adhesive film is used, the number of steps for supplying the adhesive film between the sheet material and the skin material is increased and the work is complicated, so that not only the material cost but also the manufacturing cost is increased. If the interior laminated component to be formed has a relatively complicated portion, the adhesive film cannot follow the shape change of the portion, resulting in inconvenience of uneven adhesion.
【０００５】本発明は以上の事情を背景として為された
もので、その目的とするところは、充分な接着強度を備
えさせ得るとともに容易且つ安価に実施することが可能
な内装貼合せ部品の接着構造を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to bond interior laminated parts which can be easily and inexpensively provided with sufficient adhesive strength. To provide the structure.
【０００６】[0006]
【課題を解決するための手段】かかる目的を達成するた
めには、不完全圧縮成形と同時に一部を高圧縮成形して
接着させるようにすれば良く、本発明は、弾性係数の高
い強化繊維を熱可塑性樹脂に混在させて圧縮成形した固
化シートを加熱膨張させたシート材に表皮材が重ね合わ
されるとともに、プレス成形によりそのシート材が不完
全な圧縮状態で成形され且つ上記表皮材と貼り合わされ
た内装貼合せ部品において、それらのシート材と表皮材
とを強固に貼り合わせるための接着構造であって、前記
プレス成形により前記シート材の予め定められた特定箇
所を局部的に高圧縮成形して前記表皮材と固着させるよ
うにしたことを特徴とする。In order to achieve such an object, it is only necessary to carry out high compression molding at the same time as incomplete compression molding so that a part of them is adhered. The present invention provides a reinforcing fiber having a high elastic modulus. Is mixed with a thermoplastic resin and compression-molded, a solidified sheet is heat-expanded, and the skin material is superposed on the skin material, and by press molding, the skin material is molded in an incompletely compressed state and attached to the skin material. In a combined interior laminated component, it is an adhesive structure for firmly pasting the sheet material and the skin material, and locally high compression molding a predetermined specific portion of the sheet material by the press molding. And is fixed to the skin material.
【０００７】[0007]
【作用および発明の効果】上記の内装貼合せ部品の接着
構造においては、シート材の予め定められた特定箇所
が、例えばその箇所における肉厚寸法が他の箇所におけ
る標準的な肉厚寸法よりも小さく設定されることによ
り、局部的に高圧縮状態でプレス成形されることから、
その特定箇所の部分においては、シート材と表皮材との
間で融着や素材の侵入による機械的接着が良好に生じて
双方が一体的に固着させられ、シート材と表皮材とが強
固に貼り合わされる。このため、表皮材がシート材から
剥がれたり浮き上がったりし易い部分、例えば成形形状
における端縁部分や比較的広い平面部の中央部分、その
形状に凹凸がある場合には表皮材から見て窪んだ部分の
底部や膨らんだ部分の周囲部分などを予め特定箇所とし
て設定すれば、それらの箇所においてシート材が局部的
に高圧縮成形されて表皮材との間で確実に融着および機
械的接着が生じさせられることから、上記したような表
皮材が剥がれたり浮き上がったりし易い部分で確実に強
固な接着状態が得られる。In the above-mentioned adhesive structure for the interior laminated component, the predetermined specific portion of the sheet material has, for example, a wall thickness dimension at that portion more than a standard wall thickness dimension at other portions. By setting it small, it is locally press-formed in a highly compressed state,
In the part of the specific portion, mechanical adhesion due to fusion or invasion of the material occurs well between the sheet material and the skin material and both are integrally fixed, and the sheet material and the skin material are firmly bonded. Pasted together. For this reason, the part where the skin material is easily peeled off or lifted from the sheet material, for example, the edge part in the molding shape or the central part of the relatively wide flat part, and when the shape has irregularities, is dented when viewed from the skin material. If the bottom part of the part or the peripheral part of the bulging part is set as the specific part in advance, the sheet material is locally highly compression-molded at those parts to ensure the fusion and mechanical adhesion with the skin material. Since it is generated, a firmly bonded state can be surely obtained in the above-mentioned portion where the skin material is easily peeled off or lifted up.
【０００８】このように、本発明によれば、シート材
が、特定箇所を除く全体的な部分では低圧縮成形により
所望する剛性や弾力性などの物性を確保しつつ、特定箇
所では高圧縮成形により表皮材と強固に接着させられる
ことから、内装貼合せ部品の接着強度が効果的に向上さ
せられる一方、接着フィルム等の中間接着層が必ずしも
必要でないので低コストで済むとともに接着ムラを生じ
たりする心配がない。しかも、本発明の接着構造は、特
定箇所の肉厚寸法を小さく設定するといった簡単な改良
により構成し得るため、接着フィルム等の中間接着層を
用いる場合などに比べて容易且つ安価に実施することが
できる。As described above, according to the present invention, the sheet material is highly compressed and molded at a specific portion while ensuring the desired physical properties such as rigidity and elasticity by the low compression molding at the entire portion except the specific portion. Since it can be firmly adhered to the skin material, the adhesive strength of the interior laminated component can be effectively improved, while an intermediate adhesive layer such as an adhesive film is not necessarily required, which can be achieved at low cost and uneven adhesion can occur. I don't have to worry. Moreover, since the adhesive structure of the present invention can be configured by a simple improvement such as setting the wall thickness dimension of a specific portion to be small, it can be carried out easily and inexpensively as compared with the case of using an intermediate adhesive layer such as an adhesive film. You can
【０００９】また、シート材と表皮材との間の接着強度
は、肉厚寸法をどの程度まで小さくしてどれだけ高圧縮
状態で成形するか、あるいはどの部分を特定箇所として
定めるかによって部位別に任意に変更することができる
ため、それらの設定を表皮材が剥がれたり浮き上がった
りし易い部分などの各部位別に要求される接着強度にそ
れぞれ対応して適宜行うことにより、接着強度を高める
必要のない部分も含めて全体的に接着手段を講じる場合
に比べて、内装貼合せ部品に要求される実質的な接着強
度を極めて効果的に確保することが可能である。Further, the adhesive strength between the sheet material and the skin material depends on the region depending on how much the wall thickness is reduced and how much is molded in a highly compressed state, or which part is defined as a specific part. Since it can be changed arbitrarily, it is not necessary to increase the adhesive strength by appropriately making those settings corresponding to the adhesive strength required for each part such as the part where the skin material is easily peeled off or lifted up. It is possible to extremely effectively secure the substantial adhesive strength required for the interior laminated component, as compared with the case where the adhesive means is taken as a whole including the portion.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図面に基づいて詳
細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.
【００１１】図１は、本発明の接着構造が適用された一
実施例である車両用内装貼合せ部品１０の断面図であ
る。図において、内装貼合せ部品１０は、繊維強化され
た熱可塑性樹脂製のシート材１２と、その上側の表面を
密着状態で覆う表皮材１４とから構成されており、周囲
の段部１６に対して底板部１８が窪んだ略平板形状を成
している。シート材１２は、強化繊維としてのグラスフ
ァイバーの中繊維（長さ１／２インチ程度）を重量で３
５〜５０％含有させられた強化ポリプロピレン樹脂のシ
ートであり、成形されることにより所定の形状を保持し
て物理的な部品性能が備えさせられる。一方、表皮材１
４は、不織布、編布、織布、或いはそれらで裏打ちされ
た塩化ビニルフィルム等の軟質樹脂フィルムなどを素材
とし、外観的に要求される表面性状を有するものであ
る。FIG. 1 is a sectional view of a vehicle interior laminated component 10 which is an embodiment to which the adhesive structure of the present invention is applied. In the figure, the interior laminated component 10 is composed of a fiber-reinforced sheet material 12 made of a thermoplastic resin, and a skin material 14 covering the upper surface of the sheet material 12 in an intimate contact state. The bottom plate portion 18 has a recessed substantially flat plate shape. The sheet material 12 is composed of medium fibers (about 1/2 inch in length) of glass fibers as reinforcing fibers by weight.
It is a sheet of reinforced polypropylene resin containing 5 to 50%, and by being molded, it retains a predetermined shape and is provided with physical part performance. On the other hand, skin material 1
No. 4 is made of a non-woven fabric, a knitted fabric, a woven fabric, or a soft resin film such as a vinyl chloride film lined with them, and has a surface property required for appearance.
【００１２】さらに具体的には、シート材１２は、加圧
状態で加熱および冷却されることにより予め樹脂内に混
在されているグラスファイバー繊維が撓み変形させられ
るまで完全に圧縮されて肉厚寸法ｔ0 のシート状に加工
された固化シート（基板）が、無拘束状態で再加熱され
ることによりグラスファイバー繊維の変形が回復して肉
厚方向に膨張させられ、加熱前の状態における基板厚ｔ
0 の２〜４倍の肉厚とされたものが、プレス成形により
図に示す標準的な肉厚寸法である一般肉厚ｔ1となるま
で再び圧縮されて表皮材１４と共に成形されたものであ
る。この一般肉厚ｔ1 は上記基板厚ｔ0 の 1.5〜３倍程
度であり、内装貼合せ部品１０における所定の曲げ剛性
等の物性を確保し得る肉厚寸法である。図から判るよう
に、シート材１２の予め定められた複数の特定箇所、す
なわち内装貼合せ部品１０の全周に亘る端縁部２０、段
部１６における頂上の中間部２２（非全周）、底板部１
８における中央部２４、および底板部１８から段部１６
にかけて立ち上がる壁部２６の根元部２８（非全周）の
各所においては、シート材１２の肉厚寸法が一般肉厚ｔ
1 よりも小さくされている。これらの特定箇所は、一般
的に表皮材１４がシート材１２から剥がれたり浮き上が
ったりし易い部分であり、他の部分に比べて確実な接着
状態が得られるように部分的に異なった成形条件が設定
されている。図１におけるＡ部、Ｂ部、およびＣ部の拡
大詳細図を、それぞれ図２、図３、および図４に示す。More specifically, the sheet material 12 is heated and cooled in a pressurized state to be completely compressed until the glass fiber fibers mixed in the resin in advance are flexibly deformed, and the wall thickness dimension is obtained. When the solidified sheet (substrate) processed into the sheet shape at t 0 is reheated in an unrestrained state, the deformation of the glass fiber fibers is recovered and expanded in the thickness direction, and the substrate thickness before heating is increased. t
What is made 2 to 4 times as thick as 0 is re-compressed by press molding until it becomes the general wall thickness t 1 which is the standard wall thickness dimension shown in the figure, and is molded together with the skin material 14. is there. The general wall thickness t 1 is about 1.5 to 3 times the board thickness t 0 , and is a wall thickness dimension capable of ensuring physical properties such as predetermined bending rigidity of the interior laminated component 10. As can be seen from the drawing, a plurality of predetermined locations of the sheet material 12, that is, the edge portion 20 over the entire circumference of the interior laminated component 10, the intermediate portion 22 at the top of the step portion 16 (non-entire circumference), Bottom plate 1
8 from the central portion 24 and the bottom plate portion 18 to the step portion 16
At various portions of the root portion 28 (non-periphery) of the wall portion 26 that rises up to, the thickness dimension of the sheet material 12 is the general thickness t.
It is smaller than 1 . These specific portions are generally portions where the skin material 14 is easily peeled off or lifted from the sheet material 12, and molding conditions partially different from those of the other portions are used so as to obtain a reliable adhesive state. It is set. Enlarged detailed views of the A portion, B portion, and C portion in FIG. 1 are shown in FIGS. 2, 3, and 4, respectively.
【００１３】図２において、前記端縁部２０におけるシ
ート材１２の肉厚ｔ2 は、前記基板厚ｔ0 に対し 0.5ｔ
0 ＜ｔ2 ＜ 1.5ｔ0 の範囲の大きさに設定され、全体の
うちで最も高い圧縮状態にて成形されている。このた
め、この部分におけるシート材１２と表皮材１４との間
では融着や素材の侵入による機械的接着、すなわち双方
の樹脂が溶融状態で混合して一体化することや双方の繊
維の隙間に相手方の樹脂成分が入り込んで離れにくい状
態となることが顕著に生じて、双方が強固な接着状態と
なっている。これにより、その端縁部２０の部分におい
てはシート材１２および表皮材１４間の接着強度が極端
に高められている。In FIG. 2, the thickness t 2 of the sheet material 12 at the edge portion 20 is 0.5 t with respect to the substrate thickness t 0.
The size is set in the range of 0 <t 2 <1.5t 0 , and is molded in the highest compression state of the whole. Therefore, between the sheet material 12 and the skin material 14 in this part, mechanical adhesion due to fusion or invasion of the material, that is, both resins are mixed and integrated in a molten state, and a gap between both fibers is formed. It is notable that the resin component of the other party enters and becomes difficult to separate, and both are in a strong adhesive state. As a result, the adhesive strength between the sheet material 12 and the skin material 14 is extremely increased at the edge portion 20.
【００１４】図３において、前記中間部２２におけるシ
ート材１２の肉厚ｔ3 は、前記基板厚ｔ0 に対しｔ0 ＜
ｔ3 ＜２ｔ0 の範囲の大きさに設定され、一般肉厚ｔ1
の部分よりも比較的高い圧縮状態で成形されている。こ
のため、この部分におけるシート材１２と表皮材１４と
の間では融着や素材の侵入による機械的接着が充分に生
じて、それらシート材１２と表皮材１４との接着状態が
確実に得られており、この中間部２２の部分において一
般肉厚ｔ1 の部分よりも大きな所定の接着強度が確保さ
れている。なお、前記中央部２４においても肉厚寸法が
上記と同様に肉厚ｔ3 とされ、その部分における状況も
上記と同様である。In FIG. 3, the thickness t 3 of the sheet material 12 in the intermediate portion 22 is t 0 <with respect to the substrate thickness t 0.
The size is set in the range of t 3 <2t 0 , and the general wall thickness t 1
It is molded in a relatively higher compression state than the part. Therefore, mechanical adhesion due to fusion or intrusion of the material sufficiently occurs between the sheet material 12 and the skin material 14 in this portion, and the adhesive state between the sheet material 12 and the skin material 14 is surely obtained. Therefore, the predetermined adhesive strength larger than that of the portion having the general wall thickness t 1 is secured in the portion of the intermediate portion 22. The thickness of the central portion 24 is set to the thickness t 3 as described above, and the situation in that portion is also the same as above.
【００１５】図４において、前記壁部２６の根元部２８
におけるシート材１２の肉厚ｔ4 は、前記基板厚ｔ0 に
対しｔ0 ＜ｔ4 ＜２ｔ0 の範囲の大きさに設定され、一
般肉厚ｔ1 の部分よりも比較的高い圧縮状態で成形され
ている。このため、この部分におけるシート材１２と表
皮材１４との間では融着や素材の侵入による機械的接着
が充分に生じて、それらシート材１２および表皮材１４
間の接着強度が一般肉厚ｔ1 の部分よりも確実に高くさ
れている。In FIG. 4, the root 28 of the wall 26 is shown.
The thickness t 4 of the sheet material 12 is set in the range of t 0 <t 4 <2t 0 with respect to the substrate thickness t 0 , and in a compressed state relatively higher than the portion of the general thickness t 1. It is molded. Therefore, the sheet material 12 and the skin material 14 in this portion are sufficiently fused and mechanically bonded by the penetration of the material, and the sheet material 12 and the skin material 14 are sufficiently bonded.
The adhesive strength between them is certainly higher than that of the portion having the general wall thickness t 1 .
【００１６】図５は、上述の内装貼合せ部品１０を成形
するためのプレス型３０の断面と、成形前の状態のシー
ト材１２および表皮材１４とを示す図である。プレス型
３０は一対の下型３２および上型３４から成り、図示し
ないプレス装置に配設されて使用される。下型３２は、
内装貼合せ部品１０におけるシート材１２の端縁部２０
を成形するための成形面３６や、中間部２２、中央部２
４、根元部２８をそれぞれ成形するための複数の突起３
８を対応する位置に備えており、これらの箇所において
は局部的に高圧縮成形が行われる。そして、このような
プレス型３０に対して、予め加熱膨張させられたシート
材１２が供給されるとともにそのシート材１２上に重ね
合わせて表皮材１４が供給された状態で、プレス装置の
作動スイッチがＯＮ操作されると、上型３４が下型３２
に向かって下降するように駆動され、シート材１２およ
び表皮材１４を型形状に沿って変形させつつ上型３４お
よび下型３２間の隙間が所定の寸法となるまで型を閉じ
る。プレス型３０内では低圧縮成形および部分的な高圧
縮成形が行われ、シート材１２および表皮材１４が前記
特定箇所において所定の接着状態となる接着構造によっ
て一体的に貼り合わされた内装貼合せ部品１０ができあ
がる。なお、端縁部２０のトリミングは成形と同時に行
ってもよいし、別の工程で行ってもよい。FIG. 5 is a view showing a cross section of a press die 30 for molding the above-mentioned interior laminated component 10 and a sheet material 12 and a skin material 14 in a state before molding. The press die 30 is composed of a pair of lower die 32 and upper die 34, and is used by being arranged in a press device (not shown). The lower mold 32 is
Edge 20 of sheet material 12 in interior laminated component 10
Molding surface 36 for molding the intermediate part 22, the central part 2
4, a plurality of protrusions 3 for molding the root portion 28, respectively
8 are provided at corresponding positions, and high compression molding is locally performed at these positions. Then, in such a state that the sheet material 12 that has been heated and expanded in advance is supplied to the press die 30 and the skin material 14 is supplied on the sheet material 12 in an overlapping manner, the operation switch of the press device is operated. Is turned on, the upper mold 34 is moved to the lower mold 32.
The sheet material 12 and the skin material 14 are deformed along the shape of the die, and the die is closed until the gap between the upper die 34 and the lower die 32 reaches a predetermined size. Low compression molding and partial high compression molding are performed in the press die 30, and the sheet material 12 and the skin material 14 are integrally laminated by an adhesive structure in which a predetermined adhesive state is obtained at the specific location. 10 is completed. The trimming of the edge portion 20 may be performed at the same time as molding, or may be performed in another step.
【００１７】上記のように成形された内装貼合せ部品１
０は、シート材１２の予め定められた部分的な特定箇
所、すなわち内装貼合せ部品１０の全周に亘る端縁部２
０、段部１６における頂上の中間部２２、底板部１８に
おける中央部２４、および底板部１８から段部１６にか
けて立ち上がる壁部２６の根元部２８の各部において、
それらの部分における肉厚寸法ｔ2,ｔ3,ｔ4 が他の箇所
における一般肉厚ｔ1 よりも小さく設定されることによ
り、シート材１２がプレス成形により局部的に高圧縮成
形される接着構造とされていることから、上記特定箇所
の部分においてはシート材１２と表皮材１４との間で融
着や素材の侵入による機械的接着が良好に生じて双方が
一体的に固着させられ、シート材１２と表皮材１４との
接着強度が特定箇所において部分的に高められたものと
なる。このため、本実施例によれば、表皮材１４がシー
ト材１２から剥がれたり浮き上がったりすることを防止
するのに充分な接着状態が確保され、従来のようにシー
ト材１２と表皮材１４との間に接着フィルム等の中間接
着層を介在させることに起因して接着ムラを生じたりす
ることもない。しかも、本実施例の接着構造は、接着状
態を強固にしたい部分の肉厚寸法を比較的小さく設定す
るだけでよいため、接着フィルム等を用いる場合に比べ
て容易且つ安価に実施することができる。Interior laminated component 1 molded as described above
0 is a predetermined partial specific portion of the sheet material 12, that is, the edge portion 2 over the entire circumference of the interior laminated component 10.
0, the middle portion 22 at the top of the step portion 16, the central portion 24 of the bottom plate portion 18, and the root portion 28 of the wall portion 26 that rises from the bottom plate portion 18 to the step portion 16,
By setting the thicknesses t 2, t 3, t 4 at those portions to be smaller than the general thickness t 1 at other portions, the sheet material 12 is locally highly compression-molded by press molding. Because of the structure, in the above-mentioned specific portion, the sheet material 12 and the skin material 14 are satisfactorily mechanically bonded due to fusion or penetration of the material, and both are integrally fixed, The adhesive strength between the sheet material 12 and the skin material 14 is partially increased at a specific location. Therefore, according to the present embodiment, a sufficient adhesive state is secured to prevent the skin material 14 from peeling off or rising from the sheet material 12, and the sheet material 12 and the skin material 14 are bonded to each other as in the conventional case. No adhesion unevenness is caused due to the interposition of an intermediate adhesive layer such as an adhesive film. Moreover, the adhesive structure of the present embodiment can be implemented easily and inexpensively as compared with the case where an adhesive film or the like is used, since it is only necessary to set the wall thickness dimension of the portion where the adhesive state is to be made strong. ..
【００１８】また、シート材１２と表皮材１４との間の
接着強度は、肉厚寸法をどの程度まで小さくしてどれだ
け高圧縮状態で成形するか、あるいはどの部分を特定箇
所として定めるかによって任意に変更することができる
ため、それらの設定を内装貼合せ部品１０において要求
される部位別の接着強度にそれぞれ対応して適宜行うこ
とにより、接着フィルム等を用いる場合のように接着強
度を高める必要のない部分も含めて全体的に接着手段を
講じる場合に比べて、内装貼合せ部品１０に要求される
実質的な接着強度を極めて効果的に確保することが可能
となる。Further, the adhesive strength between the sheet material 12 and the skin material 14 depends on how small the thickness dimension is, how high the compression is performed, or which portion is determined as a specific portion. Since it can be changed arbitrarily, the setting is appropriately performed corresponding to the adhesive strength of each part required in the interior laminated component 10, thereby increasing the adhesive strength as in the case of using an adhesive film or the like. It is possible to extremely effectively secure the substantial adhesive strength required for the interior laminated component 10 as compared with the case where the adhesive means is entirely provided including the unnecessary portion.
【００１９】以上、本発明の一実施例を図面に基づいて
詳細に説明したが、本発明は他の態様で実施することも
できる。Although one embodiment of the present invention has been described in detail with reference to the drawings, the present invention can be implemented in other modes.
【００２０】例えば、前述の実施例は、車両用の内装貼
合せ部品１０に本発明の接着構造を適用した場合であっ
たが、このほかにも、屋内壁や建具、或いは家具類等に
おける内装貼合せ部品に対しても同様に本発明の接着構
造をそれぞれ適用することが可能である。For example, in the above-described embodiment, the bonding structure of the present invention is applied to the interior laminated component 10 for a vehicle, but in addition to this, the interior of interior walls, fittings, furniture, etc. The adhesive structure of the present invention can be similarly applied to the bonded components.
【００２１】また、前述の実施例においては、グラスフ
ァイバーの中繊維が強化繊維として添加させられた強化
ポリプロピレン樹脂製のシート材１２が不織布等から構
成された表皮材１４と貼り合わされる場合であったが、
これらに替えて、またはこれらと組み合わされて、強化
繊維として炭素繊維やアラミド繊維等の他の異なる繊維
が添加させられた場合、熱可塑性樹脂としてＡＢＳ樹脂
やポリエチレン樹脂等の他の異なる樹脂が用いられた場
合、或いはウレタン系やオレフィン系等のフォ−ム体を
含んで構成された他の異なる表皮材が用いられた場合な
ど、別素材からなる他の内装貼合せ部品が成形される場
合であっても良い。Further, in the above-mentioned embodiment, the sheet material 12 made of reinforced polypropylene resin to which the medium fiber of glass fiber is added as the reinforcing fiber is laminated with the skin material 14 made of non-woven fabric or the like. But
When other different fibers such as carbon fiber or aramid fiber are added as the reinforcing fiber instead of or in combination with these, other different resin such as ABS resin or polyethylene resin is used as the thermoplastic resin. In the case of molding other interior laminated parts made of different materials, such as when a different type of skin material is used that is formed by including a urethane or olefin type foam body. It may be.
【００２２】また、前述の実施例においては、加熱前の
固化シートの基板厚ｔ0 の２〜４倍の肉厚に膨張させら
れたシート材１２が、プレス成形により基板厚ｔ0 の
1.5〜３倍の一般肉厚ｔ1 となるまで再び圧縮されて表
皮材１４と共に成形されるとともに、そのシート材１２
の複数の特定箇所において、 0.5ｔ0 〜 1.5ｔ0 の肉厚
寸法や、ｔ0 〜２ｔ0 の肉厚寸法となるように高圧縮状
態で成形されている内装貼合せ部品１０の場合であった
が、上記のそれぞれの倍率は適宜変更され得るものであ
り、内装貼合せ部品の個々の条件に対応して本発明を実
施することが可能である。Further, in the illustrated embodiment, the sheet material 12 which is inflated to a thickness of 2 to 4 times the substrate thickness t 0 of the solidified sheet before heating, by press molding a substrate thickness t 0
The sheet material 12 is re-compressed and molded together with the skin material 14 until the general wall thickness t 1 becomes 1.5 to 3 times.
In the case of the interior laminated component 10 which is molded in a highly compressed state to have a wall thickness of 0.5t 0 to 1.5t 0 or a wall thickness of t 0 to 2t 0 at a plurality of specific locations. However, each of the above magnifications can be appropriately changed, and the present invention can be implemented in accordance with the individual conditions of the interior laminated component.
【００２３】その他一々例示はしないが、本発明は当業
者の知識に基づいて種々の変更，改良を加えた態様で実
施することができる。Although not illustrated one by one, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.
【図１】本発明の接着構造を備えた一実施例である内装
貼合せ部品の断面図である。FIG. 1 is a cross-sectional view of an interior laminated component that is an embodiment having an adhesive structure of the present invention.
【図２】図１におけるＡ部の拡大図である。FIG. 2 is an enlarged view of part A in FIG.
【図３】図１におけるＢ部の拡大図である。FIG. 3 is an enlarged view of a B part in FIG.
【図４】図１におけるＣ部の拡大図である。FIG. 4 is an enlarged view of a C portion in FIG.
【図５】図１の内装貼合せ部品を成形するためのプレス
型の断面と成形前の状態のシート材および表皮材とを示
す図である。5 is a view showing a cross section of a press die for molding the interior laminated component of FIG. 1 and a sheet material and a skin material in a state before molding.
１０：内装貼合せ部品 １２：シート材 １４：表皮材 ２０：端縁部（特定箇所） ２２：中間部（特定箇所） ２４：中央部（特定箇所） ２８：根元部（特定箇所） 10: Interior laminated parts 12: Sheet material 14: Skin material 20: Edge portion (specific location) 22: Intermediate portion (specific location) 24: Central portion (specific location) 28: Root portion (specific location)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩切 正司 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 (72)発明者 梅本 芳朗 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoji Iwagiri 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor Yoshiro Umemoto 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd.
Claims (1)
に混在させて圧縮成形した固化シートを加熱膨張させた
シート材に表皮材が重ね合わされるとともに、プレス成
形により該シート材が不完全な圧縮状態で成形され且つ
該表皮材と貼り合わされた内装貼合せ部品において、該
シート材と該表皮材とを強固に貼り合わせるための接着
構造であって、 前記プレス成形により前記シート材の予め定められた特
定箇所が局部的に高圧縮成形されて前記表皮材と固着さ
せられていることを特徴とする内装貼合せ部品の接着構
造。1. A skin material is superposed on a heat-expanded sheet material obtained by heat-expanding a solidified sheet obtained by mixing reinforcing fibers having a high elastic coefficient in a thermoplastic resin, and the sheet material is incomplete by press molding. An interior laminated component formed in a compressed state and laminated with the skin material, which is an adhesive structure for firmly adhering the sheet material and the skin material, wherein the sheet material is predetermined by the press molding. An adhesive structure for an interior laminated component, characterized in that the specified location is locally high-compression-molded and fixed to the skin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7629092A JP3243275B2 (en) | 1992-02-27 | 1992-02-27 | Adhesive structure of interior bonded parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7629092A JP3243275B2 (en) | 1992-02-27 | 1992-02-27 | Adhesive structure of interior bonded parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05237938A true JPH05237938A (en) | 1993-09-17 |
| JP3243275B2 JP3243275B2 (en) | 2002-01-07 |
Family
ID=13601205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7629092A Expired - Fee Related JP3243275B2 (en) | 1992-02-27 | 1992-02-27 | Adhesive structure of interior bonded parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3243275B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015001867A1 (en) * | 2013-07-03 | 2015-01-08 | トヨタ自動車株式会社 | Panel member, press die, and method for manufacturing panel member |
| WO2017042920A1 (en) * | 2015-09-09 | 2017-03-16 | 日産自動車株式会社 | Composite material production method, composite material production device, preform for composite material, and composite material |
-
1992
- 1992-02-27 JP JP7629092A patent/JP3243275B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015001867A1 (en) * | 2013-07-03 | 2015-01-08 | トヨタ自動車株式会社 | Panel member, press die, and method for manufacturing panel member |
| JP2015013392A (en) * | 2013-07-03 | 2015-01-22 | トヨタ自動車株式会社 | Panel member, press die, and method for manufacturing panel member |
| US10167024B2 (en) | 2013-07-03 | 2019-01-01 | Toyota Jidosha Kabushiki Kaisha | Panel member, press mold, and manufacturing method of panel member |
| DE112014003120B4 (en) | 2013-07-03 | 2022-01-27 | Toyota Jidosha Kabushiki Kaisha | Panel element, press mold tool and manufacturing method of the panel element |
| WO2017042920A1 (en) * | 2015-09-09 | 2017-03-16 | 日産自動車株式会社 | Composite material production method, composite material production device, preform for composite material, and composite material |
| US10717241B2 (en) | 2015-09-09 | 2020-07-21 | Nissan Motor Co., Ltd. | Manufacturing method for composite material, manufacturing apparatus for composite material, and preform for composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3243275B2 (en) | 2002-01-07 |
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