JPS63114606A - Manufacture of cushion product - Google Patents
Manufacture of cushion productInfo
- Publication number
- JPS63114606A JPS63114606A JP61261647A JP26164786A JPS63114606A JP S63114606 A JPS63114606 A JP S63114606A JP 61261647 A JP61261647 A JP 61261647A JP 26164786 A JP26164786 A JP 26164786A JP S63114606 A JPS63114606 A JP S63114606A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- hollow skin
- cut
- raw material
- hollow
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims abstract description 75
- 239000006260 foam Substances 0.000 claims abstract description 55
- 239000002994 raw material Substances 0.000 claims abstract description 55
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 239000011347 resin Substances 0.000 claims abstract description 39
- 238000005187 foaming Methods 0.000 claims abstract description 23
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000010186 staining Methods 0.000 abstract description 6
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 5
- 239000011496 polyurethane foam Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 22
- 239000007924 injection Substances 0.000 description 22
- 230000000704 physical effect Effects 0.000 description 4
- 238000000071 blow moulding Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 241000252233 Cyprinus carpio Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、表面が表皮材で覆われてなるクッション製
品の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a cushion product whose surface is covered with a skin material.
（従来の技術）
従来、表面が表皮材で覆われてなるクッション製品、例
えばヘッドレストの製造は、次のような方法で行われて
いる。まず、第４図のようにブロー成形、スラッシュ成
形等により所定形状に成形したヘッドレスト用中空表皮
材１０の底部に、発泡樹脂原料の注入口１２及び支持具
挿入用の切り込み１４を形成して、その中空表皮材１０
を成形型１６に装置する。そして、切り込み１４からス
ティ等の支持具１８の一部を中空表皮材１０内に装入し
た後、注入口１２に注入ノズル２０をセットして、発泡
（封脂原料、例えばポリウレタン発泡体原料を中空表皮
材１０内に注入し、成形型を閉じて原料を発泡させ、所
望のヘッドレストを得るのである。(Prior Art) Conventionally, cushion products whose surfaces are covered with a skin material, such as headrests, have been manufactured by the following method. First, as shown in FIG. 4, an injection port 12 for foamed resin raw material and a notch 14 for inserting a support are formed at the bottom of a hollow skin material 10 for a headrest that has been molded into a predetermined shape by blow molding, slush molding, etc. The hollow skin material 10
is placed in the mold 16. After inserting a part of the support 18 such as a stay into the hollow skin material 10 through the notch 14, the injection nozzle 20 is set in the injection port 12, and foaming (sealing raw material, for example, polyurethane foam raw material) is carried out. The raw material is injected into the hollow skin material 10, the mold is closed, and the raw material is foamed to obtain the desired headrest.
（発明が解決しようとする問題点）
しかしながら、前記製造方法によれば、発泡＋ａ脂原料
の発泡時に表皮材の切り込み１４及び注入口１２から発
泡樹脂原料が漏出して表皮材１０の外面を汚すことにな
る。そのため、成形型から取り出したヘッドレストは、
外面の汚れを除去しなければ製品として使用できず、そ
の汚れを除く作業が必要であった。また、どうしてもそ
の汚れを除去できないこともあり、その場合にはそのヘ
ッドレストは不良品として廃棄されていた。(Problems to be Solved by the Invention) However, according to the above manufacturing method, the foamed resin raw material leaks from the cut 14 of the skin material and the injection port 12 during foaming + foaming of the a-fat raw material, staining the outer surface of the skin material 10. It turns out. Therefore, the headrest taken out of the mold is
The product could not be used unless the dirt on the outside surface was removed, which required work to remove the dirt. Further, sometimes the dirt cannot be removed, and in such cases the headrest is discarded as a defective product.
この発明は、従来技術が有している前記問題点、即ち支
持具装入用の切り込み及び発泡樹脂原料の注入口から発
泡樹脂原料が漏出して表皮材の外面を汚す問題、及びそ
の汚れを除去するために作業量が増大する問題、並びに
表皮材外面の汚れにより不良品を生じ易い問題を解決せ
んとするものである。This invention solves the above-mentioned problems that the prior art has, namely the problem that the foamed resin raw material leaks from the notch for inserting the support and the injection port for the foamed resin raw material, staining the outer surface of the skin material, and the problem of staining the outer surface of the skin material. This aims to solve the problem of increasing the amount of work required for removal and the problem of easily producing defective products due to dirt on the outer surface of the skin material.
（問題点を解決するための手段）
この発明は、中空表皮材の一部に切り込みを形成し、該
切り込みから支持具をその中空表皮材内に装入し、その
装入前あるいは装入後に、該支持具に連通気泡構造の軟
質発泡シートをはめて該切り込みを中空表皮材内から塞
ぐように対接して位置させ、その後該軟質発泡シートを
曲げて該切り込み部を開口させ、その切り込み部から中
空表皮材内に発泡樹脂原料を注入し、該切り込み部及び
軟質発泡シートを元に戻して切り込みを塞いで、発泡樹
脂原料を発泡させることを特徴とするものである。(Means for Solving the Problems) This invention forms a cut in a part of the hollow skin material, inserts the support into the hollow skin material through the cut, and inserts the support into the hollow skin material before or after the charging. , a soft foam sheet with an open-cell structure is fitted to the support and positioned so as to face each other so as to close the cut from inside the hollow skin material, and then the soft foam sheet is bent to open the cut, and the cut is opened. The method is characterized in that a foamed resin raw material is injected into the hollow skin material, the cut portion and the soft foam sheet are returned to their original positions, the cut is closed, and the foamed resin raw material is foamed.
（作用）
軟質ボリウレクンフォーム等からなる連通気泡構造の軟
質発泡シートは、押圧により容易に曲がり、しかもその
押圧の解除により直ちに復元する性質を有する。(Function) A soft foam sheet with an open cell structure made of soft polyurethane foam or the like has the property of easily bending under pressure and quickly returning to its original shape when the pressure is released.
したがって、中空表皮材の切り込みを内側から塞ぐよう
にして支持具にはめられた軟質発泡シートは、押圧によ
り容易に曲がり、その切り込み部を開口させる。そして
、その開口した切り込み部から発泡樹脂原料を中空表皮
材内に注入した後、軟質発泡シートの押圧を解除すれば
、軟質発泡シートは復元して再び切り込みを内側から塞
ぎ、その切り込みから発泡樹脂原料が漏出するのを防止
する。Therefore, the soft foam sheet fitted into the support so as to close the cut in the hollow skin material from the inside is easily bent by pressure, opening the cut. After injecting the foamed resin raw material into the hollow skin material through the opened cut, when the pressure on the soft foam sheet is released, the soft foam sheet restores itself and closes the cut from the inside again, allowing the foamed resin to flow through the cut. Prevent raw materials from leaking.
また、発泡樹脂原料の発泡反応により発生したガスは、
軟質発泡シートの連通気泡構造によって中空表皮材の切
り込みから外部へ放出されるめ、そのガスの中空表皮材
内における滞留偏在を防止でき、空気溜り等の不具合を
生じることなく均一に発泡を行わせることが可能となる
。In addition, the gas generated by the foaming reaction of the foamed resin raw material is
The open-cell structure of the soft foam sheet allows the gas to be released to the outside through the cuts in the hollow skin material, which prevents the gas from stagnation and uneven distribution within the hollow skin material, allowing for uniform foaming without causing problems such as air pockets. becomes possible.
（実施例）
以下この発明をヘッドレストの実施例に基づき説明する
。(Example) The present invention will be described below based on an example of a headrest.
第１図ないし第３図はこの発明の一実施例に関するもの
で、第１図は軟質発泡シート２８を支持具１８にはめて
切り込み２４を塞いだ状態を示す一部切り欠き斜視図、
第２図は支持具１８への軟質発泡シートのはめ込み、及
び中空表皮材２２内への支持具１８の装入を示す斜視図
、第３図は発泡樹脂原料の注入時を示す一部切り欠き斜
視図である。1 to 3 relate to one embodiment of the present invention, and FIG. 1 is a partially cutaway perspective view showing a state in which a soft foam sheet 28 is fitted into a support 18 and a cut 24 is closed;
Fig. 2 is a perspective view showing fitting of the soft foam sheet into the support 18 and insertion of the support 18 into the hollow skin material 22, and Fig. 3 is a partially cutaway view showing the injection of the foamed resin raw material. FIG.
中空表皮材２２は、ブロー成形、スラッシュ成形等によ
り所定形状とした塩化ビニル樹脂等のプラスチックレザ
ーからなるもの、あるいはファブリツタに軟質発泡シー
ト又はプラスチックフィルム若しくはその両者を積層し
たものを縫製等により所定形状としたものからなる。こ
の中空表皮材２２の底部に、支持具１８装入用の切り込
み２４を形成する。切り込み２４の両端には、中空表皮
材２２から突出する支持具１８の一部（スティ）の外径
と略同−径の穴２６．２６を穿設する。なお、切り込み
２４には第４図に示したような原料注入口１２を設ける
必要はない。そして、この中空表皮材２２を成形型１６
に装置する。The hollow skin material 22 is made of plastic leather such as vinyl chloride resin that is formed into a predetermined shape by blow molding, slush molding, etc., or is made of a fabric laminated with a soft foam sheet or a plastic film, or both, and then sewn into a predetermined shape by sewing or the like. It consists of the following. A notch 24 for inserting the support 18 is formed in the bottom of the hollow skin material 22. At both ends of the notch 24, holes 26, 26 having approximately the same diameter as the outer diameter of a portion (stay) of the support 18 protruding from the hollow skin material 22 are bored. Note that it is not necessary to provide the raw material injection port 12 as shown in FIG. 4 in the cut 24. Then, this hollow skin material 22 is placed in a mold 16.
equipment.
成形型１６は、中空表皮材２２の外形と同一の型面を有
し、図示した下型と、その下型上に載置される上型から
なる。なお、図示の下型及び上型に代え、て、左右に開
閉可能な割型を使用してもよい。The mold 16 has the same mold surface as the outer shape of the hollow skin material 22, and consists of a lower mold shown in the figure and an upper mold placed on the lower mold. In addition, in place of the illustrated lower mold and upper mold, a split mold that can be opened and closed left and right may be used.
次に中空表皮材の切り込み２４から支持具１８の一部を
中空表皮材２２内に装入する。支持具１８は、中空表皮
材２２内に位置して主に補強の役目を果たす部分と、中
空表皮材２２外に位置してヘッドレストの取り付けに用
いられるスティと称される部分とからなる。Next, a portion of the support 18 is inserted into the hollow skin material 22 through the cut 24 in the hollow skin material. The support 18 consists of a part located inside the hollow skin material 22 and mainly serving as reinforcement, and a part called a stay located outside the hollow skin material 22 and used for attaching the headrest.
続いて、支持具１８のスティ部に連通気泡構造の軟質発
泡シート２８をはめ、その軟質発泡シート２８により切
り込み２４を中空表皮材２２内から塞ぐように切り込み
に対接して位置させる。連通気泡構造の軟質発泡シート
２８としては、各種のプラスチッり発泡体が使用可能で
あるが、中でも軟質ポリウレタン発泡体、塩化ビニル樹
脂発泡体等が好ましく、特に中空表皮材２２内に注入さ
れる発泡樹脂原料と同材質とするのが一体性の点で最適
である。Subsequently, a soft foam sheet 28 having an open cell structure is fitted to the stay portion of the support 18, and the soft foam sheet 28 is positioned opposite to the cut so as to close the cut 24 from inside the hollow skin material 22. Various plastic foams can be used as the flexible foam sheet 28 having an open-cell structure, but among them, flexible polyurethane foams, vinyl chloride resin foams, etc. are preferable, and in particular, foams injected into the hollow skin material 22 are preferable. In terms of integrity, it is best to use the same material as the resin raw material.
この軟質発泡シート２８には、第４図のような原料注入
口１２は不要である。軟質発泡シート２８の厚みは、そ
の材質及び気孔サイズ等によって異なるが、通常２〜９
鮒とされる。なお、支持具１８への軟質発泡シート２８
のはめ込みは、支持具１８を表皮材２２内に装入する前
に行ってもよく、それは作業性の点から選択されること
である。また、その軟質発泡シート２８のはめ込みは、
軟質発泡シート２８を支持具１８のスティに突き刺して
行ってもよく、あるいはそのは砧込みを容易とするため
、あらかじめスティの外径より幾分小なる径の穴３０．
３０を穿設しておき、その穴３０．３０を利用してもよ
く、更には、その穴３０．３０に通じるスリットを両端
から設けておいてもよい。支持具１８のスティにはめら
れた軟質発泡シート２８は、スティ周面との摩擦によっ
て位置が固定される。This soft foam sheet 28 does not require the raw material injection port 12 as shown in FIG. The thickness of the soft foam sheet 28 varies depending on its material, pore size, etc., but is usually 2 to 9.
It is considered to be carp. Note that the soft foam sheet 28 is attached to the support 18.
The fitting may be performed before inserting the support 18 into the skin material 22, and is selected from the viewpoint of workability. Moreover, the fitting of the soft foam sheet 28 is as follows.
The soft foam sheet 28 may be inserted into the stay of the support 18, or in order to facilitate the insertion, the soft foam sheet 28 may be inserted into the hole 30 with a diameter slightly smaller than the outer diameter of the stay.
30 may be drilled and the hole 30.30 may be utilized, or furthermore, slits communicating with the hole 30.30 may be provided from both ends. The soft foam sheet 28 fitted into the stay of the support 18 is fixed in position by friction with the circumferential surface of the stay.
その後、中空表皮材の切り込み２４を両側に拡げ、更に
軟質発泡シート２８を手等で一側に押し曲げ切り込み２
４部分を開口させ、核部から原料注入ノズル２０を中空
表皮材２２内に差し込み、発泡樹脂原料を中空表皮材２
２内に注入する。原ＩＥＩ注入後注入ノズル２０を切り
込み２４部分から抜き取って、軟質発泡シート２８に加
わる抑圧を解除する。それによって切り込み２４部及び
軟質発泡シート２８は第１図のように復元し、再び中空
表皮材の切り込み２４が中空表皮材２２内から塞がれる
。そして、下型に上型（図示せず）を載置して成形型１
６を閉じ、発泡樹脂原料を発泡させる。発泡樹脂原料は
発泡反応の進行により粘度及び体積を増加させ、前記切
り込み２４から外部に漏出しようとする。しかし、その
切り込み２４は軟質発泡シート２８により内側から塞が
れており、しかも、切り込み２４及び軟質発泡シート２
８には表皮材２２内外を連通させる原料注入口がなく、
その上発泡樹脂原料の体積増加によって軟質発泡シート
２８が中空表皮材の切り込み２４部に内側から強く押圧
されるため、切り込み２４部はより確実に塞がれること
になる。その結果、切り込み２４から漏出しようとする
発泡樹脂原料は、軟質発泡シート２８内に吸収され、し
かも発泡樹脂原料の高粘度からその軟質発泡シート２８
から外部へ滲み出すことができないため、切り込み２４
から外部へ漏出することなく中空表皮材２２内で発泡す
る。Thereafter, the cuts 24 in the hollow skin material are expanded to both sides, and the soft foam sheet 28 is further pushed to one side by hand or the like and the cuts 2
4 parts are opened, and the raw material injection nozzle 20 is inserted into the hollow skin material 22 from the core part, and the foamed resin raw material is poured into the hollow skin material 2.
Inject into 2. After injecting the original IEI, the injection nozzle 20 is pulled out from the notch 24 to release the pressure applied to the soft foam sheet 28. As a result, the cut 24 and the soft foam sheet 28 are restored as shown in FIG. 1, and the cut 24 in the hollow skin material is closed again from inside the hollow skin material 22. Then, place the upper mold (not shown) on the lower mold and mold 1.
6 is closed and the foamed resin raw material is foamed. The foamed resin raw material increases its viscosity and volume as the foaming reaction progresses, and tends to leak out from the cut 24. However, the cut 24 is closed from the inside by the soft foam sheet 28, and furthermore, the cut 24 and the soft foam sheet 28 are closed from the inside.
8 does not have a raw material injection port that communicates the inside and outside of the skin material 22,
Moreover, since the soft foam sheet 28 is strongly pressed from the inside into the cut 24 portion of the hollow skin material due to the increased volume of the foamed resin raw material, the cut 24 portion is more reliably closed. As a result, the foamed resin raw material that is about to leak out from the cut 24 is absorbed into the soft foamed sheet 28, and furthermore, due to the high viscosity of the foamed resin raw material, the soft foamed sheet 28
Since it cannot seep out from the incision 24
Foaming occurs within the hollow skin material 22 without leaking to the outside.
また、発泡反応により発泡樹脂原料から発生したガスは
、軟質発泡シート２８の連通気孔を通って切り込みから
外部に放出される。そのため、中空表皮材２２内には発
泡ガスが一箇所に溜まることがなく、均一な発泡が可能
となるので、空気溜りによる発泡体の欠肉等の不具合を
生じることがなく、かつ均一な物性の発泡体が形成され
る。Furthermore, gas generated from the foamed resin raw material due to the foaming reaction passes through the continuous holes in the flexible foamed sheet 28 and is discharged to the outside from the notches. Therefore, foaming gas does not accumulate in one place within the hollow skin material 22, and uniform foaming is possible, so defects such as underfilling of the foam due to air pockets do not occur, and uniform physical properties are achieved. A foam is formed.
発泡樹脂原料としては、ポリウレタン発泡体原料、ポリ
塩化ビニル発泡体原料等の合成樹脂発泡体液状原料が用
いられる。As the foamed resin raw material, a synthetic resin foam liquid raw material such as a polyurethane foam raw material or a polyvinyl chloride foam raw material is used.
発泡樹脂原料の発泡終了後成形品を脱型すれば、所望の
ヘッドレストを得る。After the foaming of the foamed resin raw material is completed, the molded product is removed from the mold to obtain the desired headrest.
得られたヘッドレストは、中空表皮材の切り込み２４か
ら発泡樹脂原料の漏出がなく、しかも切り込み２４部分
に第４図に示したような見苦しい注入口１２が存在しな
いた狛、極めて外観が良好となる。The obtained headrest has an extremely good appearance as there is no leakage of the foamed resin raw material from the cut 24 in the hollow skin material, and there is no unsightly injection port 12 as shown in FIG. 4 in the cut 24 portion. .
また、発泡時にガスが−か所に偏在しないため、発泡体
と中空表皮材間にはガス溜りによる空間がなく、かつ均
一な発泡によるた必良好な物性を有するものである。Furthermore, since gas is not unevenly distributed in one place during foaming, there is no space between the foam and the hollow skin material due to gas accumulation, and uniform foaming ensures good physical properties.
（発明の効果）
この発明は、中空表皮材に形成した支持具装入用の切り
込みを、支持具にはめた連通気泡構造の軟質発泡シート
により中空表皮材内から塞ぐようにした後、その軟質発
泡シートを曲げて切り込み部を開口させ、その開口した
切り込み部から発泡樹脂原料を注入した後、切り込み部
及び軟質発泡シートを元に戻してその切り込みを再び塞
いで発泡樹脂原料の発泡を行うものである。(Effects of the Invention) The present invention covers the notch formed in a hollow skin material for inserting a support from inside the hollow skin material by a soft foam sheet with an open-cell structure fitted into the support. The foamed sheet is bent to open a notch, the foamed resin raw material is injected through the opened notch, the notched part and the soft foamed sheet are returned to their original positions, and the notch is closed again to foam the foamed resin raw material. It is.
そのため、中空表皮材に形成する切り込み及び用いる軟
質発泡シートには、原料注入用として表皮材の内外を連
通させる穴形状の原料注入口を設ける必要がなく、切り
込みを軟質発泡シートにより中空表皮材の内側から完全
に塞いだ状態で発泡）封脂原料の発泡を行うことができ
る。その結果、中空表皮材の切り込み部においては、そ
の切り込みから漏出しようとする発泡樹脂原料が全て軟
質発泡シート内に吸収され、しかもその吸収された発泡
樹脂原料が軟質発泡シートから滲み出すことがないので
、切り込みから発泡樹脂原料が漏出して表皮材外面を汚
す虞れがない。その上、中空表皮材の切り込み及び軟質
発泡シートには、表皮材内外を連通させる穴形状の原料
注入口がないことから、発泡時にその原料注入口から発
泡樹脂原料の漏出する虞れがない。しかもその漏出防止
のため、原料注入口を表皮材外面から他部材あるいは上
型により塞ぐ必要がないことから、簡略な閉型作業で済
ますことができ、あるいは成形型の構造を簡単とするこ
とができる。更に、その切り込みに穴形状の原料注入口
を設けないことから、得られる製品外面に見苦しい原料
注入口がなくなり、製品外観を極めて良好とすることが
できる。Therefore, there is no need to provide a hole-shaped raw material injection port for communicating the inside and outside of the skin material for raw material injection in the cuts formed in the hollow skin material and in the soft foam sheet used, and the cuts are formed in the hollow skin material using the soft foam sheet. It is possible to foam the sealing material (foaming) while completely blocking it from the inside. As a result, at the cut portion of the hollow skin material, all the foamed resin raw material that attempts to leak from the cut is absorbed into the soft foam sheet, and furthermore, the absorbed foamed resin raw material does not seep out from the soft foam sheet. Therefore, there is no risk of the foamed resin raw material leaking out from the cut and staining the outer surface of the skin material. Furthermore, since there is no hole-shaped raw material injection port in the hollow skin material cut and the soft foam sheet that communicates the inside and outside of the skin material, there is no risk of foamed resin raw material leaking from the raw material injection port during foaming. Moreover, in order to prevent leakage, there is no need to block the raw material injection port from the outer surface of the skin material with other parts or the upper mold, so a simple mold closing operation can be done, or the structure of the mold can be simplified. can. Furthermore, since no hole-shaped raw material injection port is provided in the cut, there is no unsightly raw material injection port on the outer surface of the resulting product, and the product has an extremely good appearance.
また、発泡時に発泡樹脂原料の発するガスは軟質発泡シ
ートの連通気泡構造を通って、切り込みから中空表皮材
外へ放出される。そのため、発泡ガスが中空表皮材内に
偏って溜まることがなく、その発泡ガスの偏在による不
具合、例えば発泡体と表皮材間における空気溜りの発生
、均一な発泡の阻害等を防止することができ、良好な物
性からなるクッション製品を得ることができる。Moreover, the gas emitted by the foamed resin raw material during foaming passes through the open cell structure of the flexible foamed sheet and is emitted from the notches to the outside of the hollow skin material. Therefore, the foaming gas does not accumulate unevenly in the hollow skin material, and problems caused by the uneven distribution of the foaming gas, such as the formation of air pockets between the foam and the skin material, and inhibition of uniform foaming, can be prevented. , a cushion product with good physical properties can be obtained.
このようにこの発明によれば、発泡樹脂原料が支持具挿
入用の切り込みから漏出して表皮材外面を汚すのを防ぐ
ことができ、外面の汚れがない製品を得ることができる
とともに、従来必要とされた製品外面の原料の汚れを除
去する作業を不要とできる。しかも得られる製品外面に
穴形状の原料注入口がないので、外観の良好なりッショ
ン製品を得ることができる。また、発泡ガスが表皮材内
に偏在しないために、良好な物性からなるクッション製
品を得ることができるのである。As described above, according to the present invention, it is possible to prevent the foamed resin raw material from leaking from the cut for inserting the support and staining the outer surface of the skin material, and it is possible to obtain a product with no stains on the outer surface. This eliminates the need to remove dirt from the raw materials on the outer surface of the product. Moreover, since there is no hole-shaped raw material injection port on the outer surface of the resulting product, a cushion product with a good appearance can be obtained. Furthermore, since the foaming gas is not unevenly distributed within the skin material, a cushion product with good physical properties can be obtained.
第１図ないし第３図はこの発明の一実施例に関するもの
で、第１図は軟質発泡シートにより切り込みを塞いだ状
態の一部切り欠き斜視図、第２図は支持具の装入及び軟
質発泡シートのはめ込みを示す斜視図、第３図は発泡樹
脂原料注入時を示す一部切り欠き斜視図である。また、
第４図及び第５図は従来の実施例に関するもので、第４
図は表皮材の斜視図、第５図は発泡樹脂原料注入時を示
す断面図である。
２４ 切り込み、２８ 軟質発泡シート特許出願人
井上エムチーピー株式会社第１図
第３図
第５図Figures 1 to 3 relate to one embodiment of the present invention. Figure 1 is a partially cutaway perspective view of the notch being covered with a soft foam sheet, and Figure 2 is a partially cutaway perspective view of the insertion of the support and the soft foam sheet. FIG. 3 is a perspective view showing the insertion of the foam sheet, and FIG. 3 is a partially cutaway perspective view showing the injection of the foam resin raw material. Also,
4 and 5 relate to conventional embodiments, and FIG.
The figure is a perspective view of the skin material, and FIG. 5 is a sectional view showing the injection of foamed resin raw material. 24 Notch, 28 Soft foam sheet Patent applicant Inoue MCP Co., Ltd. Figure 1 Figure 3 Figure 5
Claims (1)
支持具を中空表皮材内に装入し、その装入前あるいは装
入後、該支持具に連通気泡構造の軟質発泡シートをはめ
て前記切り込みを中空表皮材内から塞ぐようにして、該
軟質発泡シートを切り込みに対接して位置させ、その後
該軟質発泡シートを曲げて切り込み部を開口させ、その
切り込み部から中空表皮材内に発泡樹脂原料を注入し、
該切り込み部及び軟質発泡シートを元に戻して切り込み
を塞いで、発泡樹脂原料の発泡を行うことを特徴とする
クッション製品の製造方法。A cut is formed in a part of the hollow skin material, a support is inserted into the hollow skin material through the cut, and a flexible foam sheet with an open-cell structure is fitted to the support before or after the insertion. The soft foam sheet is positioned opposite the cut so as to close the cut from within the hollow skin material, and then the soft foam sheet is bent to open the cut, and foam is formed from the cut into the hollow skin material. Inject resin raw material,
A method for producing a cushion product, which comprises returning the cut portion and the soft foam sheet to their original positions to close the cut and foaming the foamed resin raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61261647A JPH0777731B2 (en) | 1986-10-31 | 1986-10-31 | Method of manufacturing cushion products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61261647A JPH0777731B2 (en) | 1986-10-31 | 1986-10-31 | Method of manufacturing cushion products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63114606A true JPS63114606A (en) | 1988-05-19 |
| JPH0777731B2 JPH0777731B2 (en) | 1995-08-23 |
Family
ID=17364806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61261647A Expired - Fee Related JPH0777731B2 (en) | 1986-10-31 | 1986-10-31 | Method of manufacturing cushion products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0777731B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5380474A (en) * | 1976-12-25 | 1978-07-15 | Toyo Rubber Chemical Ind Co | Production of cushioning material |
-
1986
- 1986-10-31 JP JP61261647A patent/JPH0777731B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5380474A (en) * | 1976-12-25 | 1978-07-15 | Toyo Rubber Chemical Ind Co | Production of cushioning material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0777731B2 (en) | 1995-08-23 |
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