JP2000254992A - Foamed molding and manufacture thereof - Google Patents
Foamed molding and manufacture thereofInfo
- Publication number
- JP2000254992A JP2000254992A JP11061226A JP6122699A JP2000254992A JP 2000254992 A JP2000254992 A JP 2000254992A JP 11061226 A JP11061226 A JP 11061226A JP 6122699 A JP6122699 A JP 6122699A JP 2000254992 A JP2000254992 A JP 2000254992A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- foam
- resin
- foamed
- layer
- 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
- Laminated Bodies (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、樹脂の発泡層と
これを補強する補強材とからなる発泡成形体およびその
製造法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam molded article comprising a resin foam layer and a reinforcing material for reinforcing the same, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、ドアトリム、インストルメントパ
ネルに設けられるグローブボックスのリッド等の車両の
内装材には、図６に示すような発泡成形体１が用いられ
ている。この発泡成形体１は、樹脂を発泡させてなる発
泡層２と、この発泡層２を補強する補強材３とからなる
ものであり、発泡層２と補強材３とは互いに固着されて
いる。2. Description of the Related Art Conventionally, foam moldings 1 as shown in FIG. 6 have been used as interior materials for vehicles such as door trims and lids of glove boxes provided on instrument panels. The foamed molded article 1 is composed of a foamed layer 2 formed by foaming a resin and a reinforcing material 3 for reinforcing the foamed layer 2, and the foamed layer 2 and the reinforcing material 3 are fixed to each other.
【０００３】上記のような発泡成形体１を製造する場合
には、まず金型（図示せず）のキャビティ内に補強材１
をキャビティの内面に接触させた状態でセットする。そ
の後、キャビティ内に発泡させるべき樹脂を装入する。
そして、樹脂を発泡させることにより、発泡層２を成形
する。発泡時には、樹脂の一部が溶融する。そして、こ
の溶融した樹脂が固化することにより、発泡層２と補強
材３とが互いに固着し、発泡成形体１が製造される。[0003] In the case of manufacturing the foamed molded article 1 as described above, first, the reinforcing material 1 is placed in a cavity of a mold (not shown).
Is set in contact with the inner surface of the cavity. Thereafter, a resin to be foamed is charged into the cavity.
Then, the foamed layer 2 is formed by foaming the resin. During foaming, part of the resin melts. When the molten resin is solidified, the foam layer 2 and the reinforcing material 3 are fixed to each other, and the foam molded article 1 is manufactured.
【０００４】[0004]
【発明が解決しようとする課題】発泡層２は、成形完了
後、温度の低下と共に若干収縮する。一方、補強材３は
収縮することがほとんどない。このため、図７に示すよ
うに、発泡成形体１が成形完了後に反ってしまったり、
あるいはその反りによって発泡層２と補強材３とが剥離
するという問題があった。After the completion of molding, the foamed layer 2 slightly contracts with a decrease in temperature. On the other hand, the reinforcing material 3 hardly shrinks. For this reason, as shown in FIG.
Alternatively, there has been a problem that the warp causes the foam layer 2 and the reinforcing material 3 to peel off.
【０００５】[0005]
【課題を解決するための手段】上記の問題を解決するた
めに、この発明に係る発泡成形体は、樹脂を発泡させて
なる発泡層と、この発泡層を補強する板状の補強材とか
らなり、上記樹脂を上記補強材と共に金型内に装入した
状態で発泡させることにより、上記発泡層と上記補強材
とが固着された発泡成形体において、上記発泡層を上記
補強材の表裏両側に設けたことを特徴としている。この
場合、上記補強材の表裏両側に設けられた発泡層の厚さ
をほぼ同一にするのが望ましい。上記補強材には、上記
樹脂が入り込むことができる貫通孔を形成するのが望ま
しい。上記発泡層および上記補強材を同一の材質で形成
することが望ましく、ポリプロピレン樹脂で形成するの
がさらに望ましい。上記の問題を解決するために、この
発明に係る製造法は、金型のキャビティ内に発泡させる
べき樹脂および補強材を装入した後、上記樹脂を発泡さ
せることにより、互いに固着した発泡層と補強材とから
なる発泡成形体を製造する方法において、上記樹脂を上
記補強材の表裏両面側に配置した状態で発泡させること
を特徴としている。この場合、上記補強材の表裏両面側
に配置される樹脂の層の厚さをほぼ同一にするのが望ま
しい。上記補強材には、上記樹脂が入り込むことができ
る貫通孔を形成するのが望ましい。上記樹脂および上記
補強材の材質として同一の材質を用いるのが望ましく、
ポリプロピレン樹脂を用いるのがさらに望ましい。上記
樹脂は、その発泡前の形状を玉状にするのが望ましい。In order to solve the above-mentioned problems, a foam molded article according to the present invention comprises a foam layer formed by foaming a resin and a plate-like reinforcing material for reinforcing the foam layer. By foaming the resin together with the reinforcing material in a mold, the foam layer is fixed to the foamed layer and the reinforcing material. It is characterized by being provided in. In this case, it is desirable that the thickness of the foam layers provided on both the front and back sides of the reinforcing material be substantially the same. It is desirable to form a through-hole into which the resin can enter, in the reinforcing material. Preferably, the foam layer and the reinforcing material are formed of the same material, and more preferably, a polypropylene resin. In order to solve the above problem, the manufacturing method according to the present invention comprises, after charging a resin and a reinforcing material to be foamed into a cavity of a mold, by foaming the resin, a foam layer fixed to each other. A method for producing a foamed molded article comprising a reinforcing material is characterized in that the resin is foamed in a state where the resin is arranged on both front and back surfaces of the reinforcing material. In this case, it is desirable that the thickness of the resin layer disposed on both the front and back surfaces of the reinforcing material be substantially the same. It is desirable to form a through-hole into which the resin can enter, in the reinforcing material. It is desirable to use the same material as the material of the resin and the reinforcing material,
More preferably, a polypropylene resin is used. It is desirable that the resin has a bead shape before foaming.
【０００６】[0006]
【発明の実施の形態】以下、この発明の実施の形態につ
いて図１〜図５を参照して説明する。図１には、この発
明の一実施の形態たる発泡成形体１が示されている。こ
の発泡成形体１は、例えばドアトリム、グローブボック
スのリッド等の車両用内装材として用いられるものであ
り、二つの発泡層１１，１２と、それらの間に配置され
た補強材１３とから構成されている。なお、発泡成形体
１は、単なる四角形の平板状に形成されているが、実際
の使用に際しては用途に応じた適宜の形状に形成され
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a foam molded article 1 according to one embodiment of the present invention. This foam molded article 1 is used as an interior material for a vehicle such as a door trim or a glove box lid, and includes two foam layers 11 and 12 and a reinforcing material 13 disposed therebetween. ing. In addition, the foam molded body 1 is formed in a simple rectangular flat plate shape, but is formed in an appropriate shape according to a use in actual use.
【０００７】発泡層１１，１２は、樹脂を発泡させてな
るものであり、軟らかな触感を与える。一方、補強材１
３は、発泡成形体１０全体の保形性を維持するためのも
のであり、その表裏両面に発泡層１１，１２が固着され
ている。これにより、発泡層１１，１２および補強材１
３が一体化されている。しかも、補強材１３には、貫通
孔１３ａが形成されており、この貫通孔１３ａに入り込
んだ樹脂によって発泡層１１，１２が互いに連結される
ことにより、発泡層１１，１２および補強材１３がより
一層強固に固着されている。発泡層１１，１２および補
強材１３は、後述する理由により同一の樹脂、例えばオ
レフィン系樹脂で形成するのが望ましく、そのうちのポ
リプロピレン樹脂で形成するのがさらに望ましい。The foam layers 11 and 12 are made by foaming a resin, and give a soft touch. On the other hand, reinforcing material 1
Numeral 3 is for maintaining the shape-retaining property of the entire foam molded body 10, and foam layers 11 and 12 are fixed to both front and back surfaces thereof. Thereby, the foam layers 11, 12 and the reinforcing material 1
3 are integrated. Moreover, a through-hole 13a is formed in the reinforcing material 13, and the foamed layers 11, 12 and the reinforcing material 13 are further connected by connecting the foamed layers 11, 12 with each other by the resin that has entered the through-hole 13a. It is more firmly fixed. The foam layers 11, 12 and the reinforcing material 13 are desirably formed of the same resin, for example, an olefin-based resin, and more desirably formed of a polypropylene resin among them for the reasons described later.
【０００８】図２および図３は上記構成の発泡成形体１
０を製造するための製造法の一例を示す図である。この
製造法では、一対の金型２１，２２が用いられている。
一方の金型２１には、発泡成形体１０に対応した形状を
有する凹部２１ａが形成されている。この凹部２１ａを
他方の金型２２によって塞ぐことにより、一対の金型２
１，２２間に発泡成形体１０を成形するためのキャビテ
ィ２３が形成されている。FIGS. 2 and 3 show a foamed molded article 1 having the above-described structure.
FIG. 6 is a diagram illustrating an example of a manufacturing method for manufacturing the No. 0. In this manufacturing method, a pair of dies 21 and 22 are used.
A concave portion 21 a having a shape corresponding to the foamed molded body 10 is formed in one mold 21. By closing the recess 21 a with the other mold 22, a pair of molds 2 are formed.
A cavity 23 for molding the foamed molded body 10 is formed between 1 and 22.
【０００９】上記一対の金型２１，２２を用いて発泡成
形体１０を成形する場合には、先ず図２（Ａ）に示すよ
うに、まず凹部２１ａの底部に発泡層１１（または発泡
層１２）を形成すべき樹脂を装入する。樹脂は、予め小
さな玉状に形成されたもの（以下、発泡ビーズ３０とい
う。）を用いるのが望ましい。発泡ビーズ３０の大きさ
は、補強材１３の貫通孔１３ａ内に入り込むことができ
るよう、それより小さくする。発泡ビーズ３０は、全体
が一様な層になるように凹部２１ａの底部に敷き詰め
る。敷き詰めた発泡ビーズ３０の層厚は、発泡後の層厚
が発泡層１１の厚さと同一になるように調節する。When the foamed molded article 10 is molded using the pair of dies 21 and 22, first, as shown in FIG. 2A, the foamed layer 11 (or the foamed layer 12) is formed at the bottom of the recess 21a. ) Is charged. It is desirable to use a resin which is formed in a small ball shape in advance (hereinafter, referred to as foam beads 30). The size of the foam beads 30 is made smaller than the size so as to be able to enter the through holes 13 a of the reinforcing material 13. The foam beads 30 are spread all over the bottom of the recess 21a so as to form a uniform layer as a whole. The layer thickness of the spread foam beads 30 is adjusted so that the layer thickness after foaming is the same as the thickness of the foam layer 11.
【００１０】次に、図２（Ｂ）に示すように、凹部２１
ａに装入された発泡ビーズ３０の上に補強材１３を載置
する。補強材１３は、その外周面が凹部２１ａの内面に
接触することによって位置決めされる。その後、発泡層
１２（または発泡層１１）を形成すべき発泡ビーズ３０
を凹部２１ａ内に装入し、補強材１３上に層状に敷き詰
める。勿論、発泡ビーズ３０の層厚は、発泡成形後の層
厚が発泡層１２の層厚と同一になるように調節する。補
強材１３上に発泡ビーズ３０を敷き詰めると、一部の発
泡ビーズ３０が貫通孔１３ａ内に入り込んで、補強材１
３の下側の発泡ビーズ３０に接触する。Next, as shown in FIG.
The reinforcing material 13 is placed on the foamed beads 30 inserted in a. The reinforcing member 13 is positioned when its outer peripheral surface contacts the inner surface of the concave portion 21a. Thereafter, the foam beads 30 to form the foam layer 12 (or the foam layer 11) are formed.
Is placed in the concave portion 21a and is spread over the reinforcing member 13 in a layered manner. Of course, the layer thickness of the foam beads 30 is adjusted so that the layer thickness after foam molding is the same as the layer thickness of the foam layer 12. When the foam beads 30 are spread on the reinforcing material 13, some of the foam beads 30 enter the through holes 13a, and the reinforcing material 1
3 contacts the lower foam beads 30.
【００１１】次に、凹部２１ａを金型２２によって塞
ぐ。その後、キャビティ２３内に蒸気その他の高温気体
を供給して、発泡ビーズ３０を発泡させる。これによっ
て、発泡層１１，１２を成形する。ここで、各発泡ビー
ズ３０の発泡時には、それらの表面が溶融し、成形後に
固化する。したがって、成形完了後には、発泡ビーズ３
０が補強材１３に固着する。つまり、発泡層１１，１２
が補強材１３に固着する。この場合、発泡ビーズ３０と
補強材１３が同一の材質であると、両者の表面がそれぞ
れ溶融して融合するので、発泡層１１，１２および補強
材１３が強固に固着する。しかも、貫通孔１３ａ内に入
り込んだ発泡ビーズ３０が発泡層１１，１２を構成する
発泡ビーズ３０に固着し、発泡層１１，１２が貫通孔１
３ａを介して連結する。したがって、発泡層１１，１２
および補強材１３がより一層強固に固着する。Next, the concave portion 21a is closed by the mold 22. Thereafter, steam or other high-temperature gas is supplied into the cavity 23 to foam the foam beads 30. Thereby, the foam layers 11 and 12 are formed. Here, at the time of foaming of the foam beads 30, their surfaces are melted and solidified after molding. Therefore, after the molding is completed, the expanded beads 3
0 is fixed to the reinforcing member 13. That is, the foam layers 11 and 12
Adhere to the reinforcing member 13. In this case, if the foam beads 30 and the reinforcing material 13 are made of the same material, the surfaces of the both are melted and fused, so that the foam layers 11, 12 and the reinforcing material 13 are firmly fixed. In addition, the foam beads 30 that have entered the through holes 13a are fixed to the foam beads 30 forming the foam layers 11 and 12, and the foam layers 11 and 12 are
Connect via 3a. Therefore, the foam layers 11, 12
And the reinforcing material 13 is further firmly fixed.
【００１２】上記の製造法によって、製造された発泡成
形体１０においては、補強材１３の両側に発泡層１１，
１２が固着されているので、発泡層１１，１２が成形完
了後に収縮しても全体として反ることがない。特に、発
泡層１１，１２の厚さが同一であるから、収縮による反
りをほとんど皆無にすることができる。また、反りが発
生しないから、発泡層１１，１２と補強材１３とが剥離
することがない。特に、発泡層１１，１２と補強材１３
とを同一樹脂で形成しているから、発泡時にそれらの表
面の一部が溶融して融合する。これにより、発泡層１
１，１２および補強材１３がより一層強固に固着する。
しかも、貫通孔１３ａ内に入りこんだ発泡ビーズ３０
が、発泡層１１，１２を互いに連結する。よって、発泡
層１１，１２と補強材１３との剥離をより一層確実に防
止することができる。また、発泡層１１，１２および補
強材１３をポリプロピレン樹脂で構成した場合には、そ
れらを分離することなく、全体をリサイクルに供するこ
とができる。In the foamed molded article 10 produced by the above-described production method, the foamed layers 11 and
Since the foam layer 12 is fixed, even if the foam layers 11 and 12 shrink after the completion of molding, they do not warp as a whole. In particular, since the thicknesses of the foam layers 11 and 12 are the same, warpage due to shrinkage can be almost completely eliminated. Further, since no warpage occurs, the foamed layers 11, 12 and the reinforcing material 13 do not peel off. In particular, the foam layers 11, 12 and the reinforcing material 13
Are formed of the same resin, and a part of their surfaces are melted and fused at the time of foaming. Thereby, the foam layer 1
1, 12 and the reinforcing material 13 are more firmly fixed.
Moreover, the expanded beads 30 that have entered the through holes 13a
Connects the foam layers 11 and 12 to each other. Therefore, separation between the foam layers 11 and 12 and the reinforcing material 13 can be more reliably prevented. When the foam layers 11, 12 and the reinforcing material 13 are made of a polypropylene resin, the whole can be recycled without separating them.
【００１３】次に、図４および図５に示すこの発明の製
造法の他の実施の形態を説明する。なお、この実施の形
態については、上記の実施の形態と異なる点についての
み説明することとし、同様な構成部分については同一符
号を付してその説明を省略する。Next, another embodiment of the manufacturing method of the present invention shown in FIGS. 4 and 5 will be described. In this embodiment, only differences from the above-described embodiment will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.
【００１４】この実施の形態では、図４に示す補強材１
４が用いられる。この補強材１４は、その中央部に大き
な貫通孔１４ａが形成されることによって枠状をなして
おり、各辺部の内周側には小さな貫通孔１４ｂが形成さ
れ、外周側には切り欠き（貫通孔）１４ｃが形成されて
いる。In this embodiment, the reinforcing member 1 shown in FIG.
4 is used. The reinforcing member 14 is formed in a frame shape by forming a large through hole 14a at the center thereof, a small through hole 14b is formed on the inner peripheral side of each side, and a notch is formed on the outer peripheral side. (Through hole) 14c is formed.
【００１５】補強材１４の両方の面の内周部には、突出
部１４ｄ，１４ｅがそれぞれ形成されている。突出部１
４ｄ，１４ｅの高さは、発泡層１１，１２の層厚とほぼ
同一になっている。したがって、一方の突出部１４ｄの
先端から他方の突出部１４ｅの先端までの距離は、金型
２１の凹部２１ａの深さと同一になっている。Protrusions 14d and 14e are formed on the inner peripheral portions of both surfaces of the reinforcing member 14, respectively. Projection 1
The heights of 4d and 14e are almost the same as the thickness of the foam layers 11 and 12. Therefore, the distance from the tip of one protrusion 14d to the tip of the other protrusion 14e is the same as the depth of the recess 21a of the mold 21.
【００１６】上記の補強材１４を用いて発泡成形体を製
造する場合には、図５（Ａ）に示すように、補強材１４
を凹部２１ａに装入し、金型２２によって凹部２１ａを
塞ぐ。このとき、補強材１４の外周面が凹部２１ａの内
周面に接触し、突出部１４ｄ，１４ｅが凹部２１ａの底
面および金型２２に接触する。これにより、補強材１４
が凹部２１ａの中央に位置固定される。When a foamed molded article is manufactured using the above-described reinforcing material 14, as shown in FIG.
Is inserted into the concave portion 21a, and the concave portion 21a is closed by the mold 22. At this time, the outer peripheral surface of the reinforcing member 14 contacts the inner peripheral surface of the concave portion 21a, and the protruding portions 14d and 14e contact the bottom surface of the concave portion 21a and the mold 22. Thereby, the reinforcing material 14
Is fixed at the center of the concave portion 21a.
【００１７】その後、金型２２に形成された装入口（図
示せず）からキャビティ２３内に発泡ビーズ３０を装入
する。装入された発泡ビーズ３０は、補強材１４と金型
２２との間に入り込むのみならず、貫通孔１４ａ，１４
ｂおよび切り欠き１４ｃを通って補強材１４と凹部２１
ａの底部との間に入り込む。発泡ビーズ３０の装入量
は、発泡層１１，１２に対応した量に調節する。次に、
発泡ビーズ３０を発泡させて発泡成形体を得る。Thereafter, the foam beads 30 are charged into the cavity 23 from a charging port (not shown) formed in the mold 22. The inserted foam beads 30 not only enter between the reinforcing member 14 and the mold 22 but also penetrate the through holes 14a, 14a.
b and the notch 14c and the reinforcing member 14 and the recess 21
a between the bottom of a. The charging amount of the foam beads 30 is adjusted to an amount corresponding to the foam layers 11 and 12. next,
The foam beads 30 are foamed to obtain a foam molded article.
【００１８】このようにして製造された発泡成形体にお
いては、発泡層１１，１２が大きな貫通孔１４ａを介し
て一体的に形成されるので、発泡層１１，１２と補強材
１３との間の剥離をより一層確実に防止することができ
る。In the foam molded article manufactured as described above, since the foam layers 11 and 12 are integrally formed through the large through-holes 14a, the gap between the foam layers 11 and 12 and the reinforcing material 13 is formed. Peeling can be more reliably prevented.
【００１９】[0019]
【発明の効果】以上説明したように、この発明によれ
ば、発泡成形体の反りを防止することができるととも
に、発泡層と補強材との間の剥離を防止することができ
るという効果が得られる。As described above, according to the present invention, it is possible to prevent the warpage of the foamed molded product and to prevent the peeling between the foamed layer and the reinforcing material. Can be
【図１】この発明に係る発泡成形体の一実施の形態を示
す断面図である。FIG. 1 is a cross-sectional view showing one embodiment of a foam molded article according to the present invention.
【図２】図１に示す発泡成形体の製造法を説明するため
の図であって、図２（Ａ）は金型の凹部に一方の発泡層
を成形するための発泡ビーズを敷き詰めた状態を示し、
図２（Ｂ）は発泡ビーズの上に補強材を載置した状態を
示し、図３（Ｃ）補強材の上に発泡ビーズを敷き詰めた
後、全ての発泡ビーズを発泡させた状態を示している。FIG. 2 is a view for explaining a method for producing the foamed molded article shown in FIG. 1; FIG. 2 (A) shows a state in which foam beads for molding one foam layer are spread in a concave portion of a mold; Indicates that
FIG. 2B shows a state in which a reinforcing material is placed on the expanded beads, and FIG. 3C shows a state in which all the expanded beads are expanded after the expanded beads are spread on the reinforcing material. I have.
【図３】この発明に係る製造法において用いられる一対
の金型および補強材を示す斜視図である。FIG. 3 is a perspective view showing a pair of molds and a reinforcing material used in the manufacturing method according to the present invention.
【図４】この発明に係る製造法において用いられる補強
材の他の例を示す斜視図である。FIG. 4 is a perspective view showing another example of a reinforcing material used in the manufacturing method according to the present invention.
【図５】図４に示す補強材を用いた製造法を説明するた
めの図であって、図５（Ａ）は金型の凹部に補強材を装
着した状態を示し、図５（Ｂ）はキャビティ内に注入し
た発泡ビーズを発泡させた状態を示している。5A and 5B are views for explaining a manufacturing method using the reinforcing material shown in FIG. 4, wherein FIG. 5A shows a state in which the reinforcing material is mounted in a concave portion of a mold, and FIG. Indicates a state in which the foamed beads injected into the cavity are foamed.
【図６】従来の発泡成形体の一例を示す断面図である。FIG. 6 is a sectional view showing an example of a conventional foam molded article.
【図７】図６に示す発泡成形体が反った状態を示す断面
図である。7 is a cross-sectional view showing a state in which the foam molded article shown in FIG. 6 is warped.
１０ 発泡成形体 １１ 発泡層 １２ 発泡層 １３ 補強材 １３ａ 貫通孔 １４ 補強材 １４ａ 貫通孔 １４ｂ 貫通孔 １４ｃ 切り欠き（貫通孔） ２１ 金型 ２２ 金型 ２３ キャビティ ３０ 発泡ビーズ（発泡させるべき樹脂） DESCRIPTION OF SYMBOLS 10 Foam molded object 11 Foam layer 12 Foam layer 13 Reinforcement 13a Through hole 14 Reinforcement 14a Through hole 14b Through hole 14c Notch (through hole) 21 Mold 22 Mold 23 Cavity 30 Foam beads (resin to be foamed)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｋ 105:04 Ｆターム(参考） 4F100 AK01A AK01C AK07A AK07B AK07C BA03 BA06 BA10A BA10C BA16 DC11B DH00B DJ01A DJ01C DJ05A DJ05C EJ022 GB33 JK06 JL04 4F212 AA11 AD05 AD08 AD23 AG03 AG20 AH26 UA01 UB01 UB11 UB22 UF05 UG02 UG05 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) B29K 105: 04 F term (Reference) 4F100 AK01A AK01C AK07A AK07B AK07C BA03 BA06 BA10A BA10C BA16 DC11B DH00B DJ01A DJ01C DJ05A DJ05CEJ022 GB33 JK06 JL04 4F212 AA11 AD05 AD08 AD23 AG03 AG20 AH26 UA01 UB01 UB11 UB22 UF05 UG02 UG05
Claims (11)
泡層を補強する板状の補強材とからなり、上記樹脂を上
記補強材と共に金型内に装入した状態で発泡させること
により、上記発泡層と上記補強材とが固着された発泡成
形体において、上記発泡層を上記補強材の表裏両側に設
けたことを特徴とする発泡成形体。1. A foamed layer formed by foaming a resin, and a plate-like reinforcing material for reinforcing the foamed layer, wherein the resin is foamed in a state of being charged in a mold together with the reinforcing material. And a foam molded article in which the foam layer and the reinforcing material are fixed, wherein the foam layer is provided on both front and back sides of the reinforcing material.
層の厚さをほぼ同一にしたことを特徴とする請求項１に
記載の発泡成形体。2. The foam molded article according to claim 1, wherein the thickness of the foam layers provided on both sides of the reinforcing material is substantially the same.
できる貫通孔を形成したことを特徴とする請求項１また
は２に記載の発泡成形体。3. The foamed molded article according to claim 1, wherein a through-hole through which the resin can enter is formed in the reinforcing material.
質で形成したことを特徴とする請求項１〜３のいずれか
に記載の発泡成形体。4. The foam molded article according to claim 1, wherein said foam layer and said reinforcing material are formed of the same material.
ピレン樹脂で形成したことを特徴とする請求項４に記載
の発泡成形体。5. The foam molded article according to claim 4, wherein said foam layer and said reinforcing material are formed of a polypropylene resin.
脂および補強材を装入した後、上記樹脂を発泡させるこ
とにより、互いに固着した発泡層と補強材とからなる発
泡成形体を製造する方法において、上記樹脂を上記補強
材の表裏両面側に配置した状態で発泡させることを特徴
とする発泡成形体の製造法。6. A method for producing a foam molded article comprising a foam layer and a reinforcing material fixed to each other by charging a resin to be foamed and a reinforcing material into a cavity of a mold and then foaming the resin. 3. The method for producing a foamed molded article according to claim 1, wherein the resin is foamed in a state where the resin is arranged on both front and back surfaces of the reinforcing material.
脂の層の厚さをほぼ同一にしたことを特徴とする請求項
６に記載の発泡成形体の製造法。7. The method according to claim 6, wherein the thickness of the resin layer disposed on both the front and back surfaces of the reinforcing material is substantially the same.
できる貫通孔を形成したことを特徴とする請求項６また
は７に記載の発泡成形体の製造法。8. The method according to claim 6, wherein a through-hole through which the resin can enter is formed in the reinforcing material.
同一の材質を用いたことを特徴とする請求項６〜８のい
ずれかに記載の発泡成形体の製造法。9. The method according to claim 6, wherein the same material is used for the resin and the reinforcing material.
てポリプロピレンを用いたことを特徴とする請求項９に
記載の発泡成形体の製造法。10. The method according to claim 9, wherein polypropylene is used as a material of the resin and the reinforcing material.
ことを特徴とする請求項６〜１０のいずれかに記載の発
泡成形体の製造法。11. The method according to claim 6, wherein the shape of the resin before foaming is a ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06122699A JP4226717B2 (en) | 1999-03-09 | 1999-03-09 | Foam molded body and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06122699A JP4226717B2 (en) | 1999-03-09 | 1999-03-09 | Foam molded body and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000254992A true JP2000254992A (en) | 2000-09-19 |
| JP4226717B2 JP4226717B2 (en) | 2009-02-18 |
Family
ID=13165098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06122699A Expired - Lifetime JP4226717B2 (en) | 1999-03-09 | 1999-03-09 | Foam molded body and method for producing the same |
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| Country | Link |
|---|---|
| JP (1) | JP4226717B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011230481A (en) * | 2010-04-30 | 2011-11-17 | Toto Sekisui Kk | Resin molded article |
| KR101605344B1 (en) * | 2014-06-23 | 2016-03-22 | 주식회사 서연씨엔에프 | manufacturing mold of Seat Pad having different hardnesses and manufacturing method using thereof |
| WO2016152530A1 (en) * | 2015-03-26 | 2016-09-29 | 株式会社カネカ | In-mold foamed molding and molding method and molding die therefor |
-
1999
- 1999-03-09 JP JP06122699A patent/JP4226717B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011230481A (en) * | 2010-04-30 | 2011-11-17 | Toto Sekisui Kk | Resin molded article |
| KR101605344B1 (en) * | 2014-06-23 | 2016-03-22 | 주식회사 서연씨엔에프 | manufacturing mold of Seat Pad having different hardnesses and manufacturing method using thereof |
| WO2016152530A1 (en) * | 2015-03-26 | 2016-09-29 | 株式会社カネカ | In-mold foamed molding and molding method and molding die therefor |
| CN107107406A (en) * | 2015-03-26 | 2017-08-29 | 株式会社钟化 | Foamed-mold product and its forming method and mold for forming |
| JPWO2016152530A1 (en) * | 2015-03-26 | 2018-01-18 | 株式会社カネカ | In-mold foam molding, molding method thereof and molding die |
| EP3275613A4 (en) * | 2015-03-26 | 2018-12-05 | Kaneka Corporation | In-mold foamed molding and molding method and molding die therefor |
| CN107107406B (en) * | 2015-03-26 | 2019-08-23 | 株式会社钟化 | Foamed-mold product and its forming method and mold for forming |
| US10703028B2 (en) | 2015-03-26 | 2020-07-07 | Kaneka Corporation | In-mold foam molded article, method for forming the same, and mold for use in forming the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4226717B2 (en) | 2009-02-18 |
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