JPS60154015A - Integral expansion molding of head rest - Google Patents
Integral expansion molding of head restInfo
- Publication number
- JPS60154015A JPS60154015A JP59010849A JP1084984A JPS60154015A JP S60154015 A JPS60154015 A JP S60154015A JP 59010849 A JP59010849 A JP 59010849A JP 1084984 A JP1084984 A JP 1084984A JP S60154015 A JPS60154015 A JP S60154015A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- foam
- core
- pipe
- 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)
Abstract
Description
【発明の詳細な説明】
本発明は、非通気性の表皮材と、芯材とスティとの結合
体間に発泡液を注入Ｌ、発泡させるヘッドレストの一体
発泡成形法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an integral foam molding method for a headrest in which a foaming liquid is injected between a non-breathable skin material, a core material and a stay, and foaming is performed.
第１図および第２図に、ヘッドレストの一体発泡成形法
の従来技術を示す。FIGS. 1 and 2 show a conventional technology for integrally foaming a headrest.
この従来技術では、発泡型１の内部に非通気性の表皮材
２を装着し５該表皮材２には発泡型１のガス抜き孔３に
対向する位置にガス抜き孔２ａが形成され、この表皮材
２の内側に芯材４′とステイ５′の結合体を挿入し、前
記ガス抜き孔２ａと芯材４′との間にスラブウレタン等
の通気性を有するインサート材６を取付け、表皮材２と
芯材４′とステイ５′の結合体間に発泡体の原液９を注
入し、発泡型１と表皮材２とに貫通するガス抜き孔３及
び２ａからガスを抜くようにしている。In this prior art, a non-breathable skin material 2 is mounted inside a foam mold 1, and a gas vent hole 2a is formed in the skin material 2 at a position facing the gas vent hole 3 of the foam mold 1. A combination of a core material 4' and a stay 5' is inserted inside the skin material 2, and an insert material 6 having air permeability such as slab urethane is attached between the gas vent hole 2a and the core material 4'. A foam stock solution 9 is injected between the combination of the material 2, the core material 4', and the stay 5', and the gas is released from gas vent holes 3 and 2a penetrating the foam mold 1 and the skin material 2. .
しかし、従来技術ではガス抜き孔３及び２ａからのみ、
ガスを抜くようにしているので、発泡時のガス抜けが悪
く、発泡体に巣ができたり、発泡が阻害される欠点がち
シ、発泡体の原液９の注入量が過量となった場合には、
ガス抜き孔３からパリが吐出して表皮材２を汚してしま
う欠点があシ、またガス抜けが不十分なため、脱型時に
異状膨張して発泡体が変形してしまう欠点もある。なお
、第２図中Ｃはパリの吐出方向を示す。However, in the conventional technology, only from the gas vent holes 3 and 2a,
Since the gas is vented, it is difficult to vent the gas during foaming, which tends to create cavities in the foam and inhibit foaming.If the amount of foam stock solution 9 injected is excessive, ,
There is a drawback that the foam is ejected from the gas vent hole 3 and stains the skin material 2, and there is also a drawback that the foam is deformed due to abnormal expansion during demolding due to insufficient gas venting. Incidentally, C in FIG. 2 indicates the direction in which Paris is discharged.
本発明の目的は、発泡体の発生ガスと、発泡体の体積増
加による内部空気を効果的に抜き出し得るヘッドレスト
の一体発泡成形法を提供するもので、以下図面を参照し
て詳述する。An object of the present invention is to provide an integral foam molding method for a headrest that can effectively extract gas generated from a foam and internal air due to an increase in volume of the foam, and will be described in detail below with reference to the drawings.
第３図は本発明の一実施例を示すもので、発泡型１の内
部に非通気性の表皮材２を装着し、その内部に芯材４と
スティ５との結合体を配置している。FIG. 3 shows an embodiment of the present invention, in which a non-breathable skin material 2 is installed inside a foam mold 1, and a combined body of a core material 4 and a stay 5 is arranged inside the skin material 2. .
前記発泡型１ば、−半部１ａと他学部１ｂ、ｌｃとを組
み合わせて構成されている。The foaming mold 1b is constructed by combining the negative half part 1a and the other parts 1b and lc.
前記発泡型１と表皮材２には、表皮材２の内側から発泡
型１の外側に貫通するように発泡型１のガス抜き孔３及
び表皮材２のガス抜き孔２ａが設けられている。The foam mold 1 and the skin material 2 are provided with gas vent holes 3 in the foam mold 1 and gas vent holes 2a in the skin material 2 so as to penetrate from the inside of the skin material 2 to the outside of the foam mold 1.
前記芯材４は中空に形成され、上端部及び下端部に通気
孔７が形成され、更に、＠記表皮材２のガス抜き孔２ａ
に対峙する端部にはパイプ挿通孔８が形成されている。The core material 4 is formed hollow, and has ventilation holes 7 formed at its upper and lower ends, and gas vent holes 2a of the skin material 2 marked with @.
A pipe insertion hole 8 is formed at the opposite end.
ステイ５は一端部（第３図では下端部）が閉塞され、他
端部が開放されたパイプにより形成されているが、単な
る棒状体であってもよい。The stay 5 is formed of a pipe with one end (lower end in FIG. 3) closed and the other end open, but it may also be a simple rod-shaped body.
前記表皮材２の端末部を発泡型１の一半部１ａと他学部
１ｃとの型合わせ面に配設し、この型合わせ面に沿って
、表皮材２の内側て軟質スラブウレタン等からなるイン
サー ト材６が取付けられている。The end portion of the skin material 2 is arranged on the mold mating surface between one half 1a of the foam mold 1 and the other part 1c, and an insert made of soft slab urethane or the like is placed inside the skin material 2 along this mold mating surface. The top material 6 is attached.
発泡型１のガス抜き孔３、表皮材２のガス抜き孔２ａ及
び芯材４のパイプ挿通孔８にはガス抜きパイプ１１が挿
入され、芯材４の内部と発泡型１の外部とが連通状態に
形成されている。このガス抜きパイプ１１は表皮材２と
芯材４間に注入される発泡体の原液９の発泡圧等に応じ
て適宜の径のものを用いる。A gas venting pipe 11 is inserted into the gas venting hole 3 of the foaming mold 1, the gas venting hole 2a of the skin material 2, and the pipe insertion hole 8 of the core material 4, so that the inside of the core material 4 and the outside of the foaming mold 1 communicate with each other. formed into a state. The gas venting pipe 11 has an appropriate diameter depending on the foaming pressure of the foam stock solution 9 injected between the skin material 2 and the core material 4.
従って、発泡型１内に非通気性の表皮材２を取付け、表
皮材２の内部て芯材４とスティ５の結合体を挿入し、イ
ンサート材６を表皮材２の端末に沿って配置し、次いで
、ガス抜き孔３，２ａ及びパイプ挿通孔８にガス抜きパ
イプ１１を挿入し、表皮材２の内部と、芯材４とステイ
５の結合体間に形成される空間部に発泡型１の一部ＩＣ
を型開きして発泡体の原液９を注入すると、その原液９
は第３図に矢印ａで示すように下部より順次上方に向っ
て発泡し充填されていく。Therefore, an air-impermeable skin material 2 is attached inside the foam mold 1, a combined body of the core material 4 and stay 5 is inserted inside the skin material 2, and an insert material 6 is placed along the end of the skin material 2. Next, the gas vent pipe 11 is inserted into the gas vent holes 3 and 2a and the pipe insertion hole 8, and the foam mold 1 is inserted into the space formed between the inside of the skin material 2 and the combined body of the core material 4 and the stay 5. Some ICs
When the mold is opened and the foam stock solution 9 is injected, the stock solution 9
As shown by arrow a in FIG. 3, the foam is sequentially foamed and filled upward from the bottom.
この際、発泡体の原液９の発生ガスと、発泡体の体積増
加による内部空気とは第３図に矢印すで示す如く、芯材
４の通気孔７より芯材４の内部に流入し、次いで芯材４
のパイプ挿通孔８に挿入されているガス抜きパイプ１１
を介してガス抜き孔２ａ及び３を通過して矢印Ｃで示す
如く発泡型１の外部に抜き出される。At this time, the gas generated from the foam stock solution 9 and the internal air due to the increased volume of the foam flow into the interior of the core material 4 through the ventilation holes 7 of the core material 4, as shown by the arrows in FIG. Next, core material 4
Gas venting pipe 11 inserted into the pipe insertion hole 8 of
The foam passes through the gas vent holes 2a and 3 and is extracted to the outside of the foaming mold 1 as shown by arrow C.
また、発泡体の原液９の過量針は、インサート材６に含
浸、吸収され、または通気孔７より芯材４内部に吐出さ
れ発泡型１のガス抜き孔３からの吐出が防止される。Further, excess needles of the foam stock solution 9 are impregnated and absorbed into the insert material 6, or are discharged into the core material 4 through the ventilation holes 7, and are prevented from being discharged from the gas vent holes 3 of the foam mold 1.
発泡体の発泡完了後、発泡型１の一半部１ａと他学部１
ｂ、ｌｃを型開きし、製品としての表皮材２と発泡体と
芯材４とスティ５との一体発泡成形品２１を脱型する。After the foaming of the foam is completed, one half 1a of the foaming mold 1 and the other part 1
b, lc is opened, and the integrated foam molded product 21 of the skin material 2, foam, core material 4, and stay 5 is removed from the mold.
脱型後、ガス抜きパイプ１１を引き抜き、または突出部
をカットする。After demolding, the gas vent pipe 11 is pulled out or the protruding portion is cut.
以上が本発明にかかるヘッドレストの一体発泡成形法の
一実施例の方法であるが、かかる方法によれば、発泡体
の発生ガスと、発泡体の体積増加による内部空気の大部
分を、芯材に設けられた通気孔より、芯材の内部に導入
し、次いで芯材のパイプ挿通孔に挿入されたガス抜きパ
イプを介して発泡型の外部圧抜き取るようにしているの
で、前記ガスによる発泡体内の巣の発生および発泡不良
を防止し得る効果がある。The above is an embodiment of the integral foam molding method for a headrest according to the present invention. According to this method, most of the generated gas of the foam and the internal air due to the increase in the volume of the foam are removed from the core material. The gas is introduced into the interior of the core material through the vent hole provided in the core material, and then the external pressure of the foam mold is removed through the gas vent pipe inserted into the pipe insertion hole of the core material. This has the effect of preventing the formation of bubbles and poor foaming.
また、本発明によれば、発泡体の原液の注入量が過量の
場合であっても、ガス抜き孔からのパリの吐出を防止で
きる効果があり、脱型時の発泡体の異状膨張による変形
を防止できる効果もある。Further, according to the present invention, even if the injection amount of the foam stock solution is excessive, it is possible to prevent the discharge of particles from the gas vent hole, and the foam is deformed due to abnormal expansion during demolding. It also has the effect of preventing
なお、上述においては本発明の一実施例を示したに留ま
り、本発明の精神を脱することなしに種々の変形、変更
をなし得ること明らかであろう。It should be noted that the above description merely shows one embodiment of the present invention, and it will be obvious that various modifications and changes can be made without departing from the spirit of the present invention.
第１図は従来技術を説明するだめの縦断面図、第２図は
第１図中のＡ部分の拡大図、第３図は本発明の一実施例
を説明するだめの縦断面図、第４図は本発明により製造
したヘッドレストの斜視図である。
図中、１・・発泡型、２・・・表皮材、２ａ・表皮材の
ガス抜き孔、３・・・発泡型のガス抜き孔、４・・・中
空の芯材、５・・ステイ、６・・インサート材、７・・
通気孔、８・・パイプ挿通孔、９・・発泡体の原液、１
１・・・ガス抜きパイプ、２１・・・一体発泡成形品と
してのヘッドレスト。FIG. 1 is a longitudinal cross-sectional view of a container for explaining the prior art, FIG. 2 is an enlarged view of part A in FIG. 1, and FIG. FIG. 4 is a perspective view of a headrest manufactured according to the present invention. In the figure, 1: foam type, 2: skin material, 2a: gas vent hole of skin material, 3: gas vent hole of foam type, 4: hollow core material, 5: stay, 6. Insert material, 7.
Vent hole, 8...Pipe insertion hole, 9...Foam stock solution, 1
1... Gas vent pipe, 21... Headrest as an integral foam molded product.
Claims (1)
内部に、ヘッドレストのステイとその先端部の一側部に
芯材を一体に結合した結合体を配置し、表皮材の内部に
発泡体の原液を注入し、発泡させるヘッドレストの一体
発泡成形法において、前記発泡型と表皮材とに貫通させ
てガス抜き孔を形成し、前記芯材に通気孔とパイプ挿通
孔とを形成し、前記ガス抜き孔とパイプ挿通孔とに、ガ
ス抜きパイプを挿入し、前記表皮材と芯材間に発生泡型
外部に抜き取るよう証した事を特徴とするヘッドレスト
の一体発泡成形法。A non-breathable skin material is attached to the inside of the foam mold, and a bonded body in which the headrest stay and the core material are integrally joined to one side of the tip of the headrest is placed inside the skin material. In an integral foam molding method for a headrest in which a foam stock solution is injected inside and foamed, a gas vent hole is formed by penetrating the foam mold and the skin material, and a ventilation hole and a pipe insertion hole are formed in the core material. An integral foam molding method for a headrest, characterized in that a gas venting pipe is inserted into the gas venting hole and the pipe insertion hole, and the foam generated between the skin material and the core material is extracted to the outside of the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59010849A JPS60154015A (en) | 1984-01-24 | 1984-01-24 | Integral expansion molding of head rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59010849A JPS60154015A (en) | 1984-01-24 | 1984-01-24 | Integral expansion molding of head rest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60154015A true JPS60154015A (en) | 1985-08-13 |
| JPH0249611B2 JPH0249611B2 (en) | 1990-10-30 |
Family
ID=11761796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59010849A Granted JPS60154015A (en) | 1984-01-24 | 1984-01-24 | Integral expansion molding of head rest |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154015A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6235810A (en) * | 1985-08-09 | 1987-02-16 | Inoue Mtp Co Ltd | Manufacture of expansion molded part |
| JPH0263815A (en) * | 1988-08-31 | 1990-03-05 | Tokyo Seat Kk | Manufacture of rear shelf for vehicle |
| US5192381A (en) * | 1990-12-27 | 1993-03-09 | Techstrip Inc. | Power door sensing strip |
| JPH08174575A (en) * | 1994-12-24 | 1996-07-09 | Tokai Kogyo Kk | Method and mold for foam molding |
| US5730917A (en) * | 1995-10-09 | 1998-03-24 | Ikeda Bussan Co., Ltd. | Method for molding the headrest of an automotive seat |
| JP2003093769A (en) * | 2001-09-26 | 2003-04-02 | Ryuudekku Corporation:Kk | Filler stuffing method for bag |
-
1984
- 1984-01-24 JP JP59010849A patent/JPS60154015A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6235810A (en) * | 1985-08-09 | 1987-02-16 | Inoue Mtp Co Ltd | Manufacture of expansion molded part |
| JPH0530165B2 (en) * | 1985-08-09 | 1993-05-07 | Inoue Mtp Kk | |
| JPH0263815A (en) * | 1988-08-31 | 1990-03-05 | Tokyo Seat Kk | Manufacture of rear shelf for vehicle |
| US5192381A (en) * | 1990-12-27 | 1993-03-09 | Techstrip Inc. | Power door sensing strip |
| JPH08174575A (en) * | 1994-12-24 | 1996-07-09 | Tokai Kogyo Kk | Method and mold for foam molding |
| US5730917A (en) * | 1995-10-09 | 1998-03-24 | Ikeda Bussan Co., Ltd. | Method for molding the headrest of an automotive seat |
| JP2003093769A (en) * | 2001-09-26 | 2003-04-02 | Ryuudekku Corporation:Kk | Filler stuffing method for bag |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0249611B2 (en) | 1990-10-30 |
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