JPH01299009A - Manufacture of cushioning material - Google Patents
Manufacture of cushioning materialInfo
- Publication number
- JPH01299009A JPH01299009A JP63129842A JP12984288A JPH01299009A JP H01299009 A JPH01299009 A JP H01299009A JP 63129842 A JP63129842 A JP 63129842A JP 12984288 A JP12984288 A JP 12984288A JP H01299009 A JPH01299009 A JP H01299009A
- Authority
- JP
- Japan
- Prior art keywords
- stock solution
- nonwoven cloth
- foaming stock
- polyurethane
- polyurethane foam
- 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
- 239000000463 material Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000005187 foaming Methods 0.000 claims abstract description 23
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 19
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 19
- 239000011550 stock solution Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 28
- 239000002759 woven fabric Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 abstract description 13
- 239000004814 polyurethane Substances 0.000 abstract description 13
- 230000002159 abnormal effect Effects 0.000 abstract description 10
- 239000004744 fabric Substances 0.000 abstract description 10
- 239000000835 fiber Substances 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 5
- 239000004743 Polypropylene Substances 0.000 abstract description 4
- -1 polypropylene Polymers 0.000 abstract description 4
- 229920001155 polypropylene Polymers 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920001778 nylon Polymers 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］
本発明は、特に自動車用や家具用に用いられるクツショ
ン材の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing cushioning materials used particularly for automobiles and furniture.
［従来の技術と課題］
従来、自動車用や家具用のクツション材としては弾性、
保温性、軽量性に優れたポリウレタンフォームが用いら
れ、かかるポリウレタンフォームはモールド用型にポリ
ウレタンフォーム発泡原液を注入して発泡成型すること
により製造されていた。[Conventional technology and issues] Conventionally, cushioning materials for automobiles and furniture have been made of elastic,
Polyurethane foam, which has excellent heat retention and lightness, is used, and such polyurethane foam has been manufactured by pouring a polyurethane foam stock solution into a mold and performing foam molding.
ところで、こうしたクツション材となるウレタンフオー
ムは、通常その裏面にバネやフレームなどを当ててアッ
センブリするが、使用中の振動や着座時にウレタンフオ
ームとバネやフレームなどがこすれて異音が発生すると
いう問題点を有する。By the way, urethane foam, which is used as a cushioning material, is usually assembled by applying a spring or frame to the back side, but there are problems with vibration during use or when the urethane foam rubs against the spring or frame when sitting, causing abnormal noise. Has a point.
この原因は、ウレタンフオームの表面に形成されるスキ
ンや離型剤やウレタンフオーム自体の摩擦抵抗が大であ
るからである。This is because the frictional resistance of the skin and mold release agent formed on the surface of the urethane foam and the urethane foam itself is large.
本発明は上記事情に鑑みてなされたもので、モールド用
型の上型又は下型の少なくともバネ、フレーム、パイプ
などの鋼材の当たる部分に対応すするようにポリウレタ
ン、フオームを形成するこｔｐｎにより、使用中の振動
や着座時に異音が発生するのを防止し得るクツション材
の製造方法を提供することを目的とする。The present invention has been made in view of the above circumstances, and involves forming a polyurethane foam so as to correspond to at least the parts of the upper mold or lower mold of a mold that contact steel materials such as springs, frames, and pipes. An object of the present invention is to provide a method for manufacturing a cushion material that can prevent vibration during use and generation of abnormal noise when seated.
［課題を解決するための手段と作用コ
本発明は、モールド用型の上型又は下型の少なくともバ
ネ、フレーム、パイプなどの鋼材の当たる部分に対応す
る箇所に不織布又は織布をセットタンフオームを形成す
ることを要旨とする。[Means and effects for solving the problem] The present invention provides a method of setting a non-woven fabric or a woven fabric at a portion of the upper mold or lower mold of a mold that corresponds to at least a portion of the mold that is in contact with a steel material such as a spring, frame, or pipe. The purpose is to form a
本発明に係る不織布または織布の材質としては、ポリプ
ロピレン繊維、アクリル繊維、ナイロン繊維、線環通常
使用されているもの、゛あるいは寒冷紗、ヘラシャンク
ロスなどが挙げられる。Examples of the material for the nonwoven fabric or woven fabric according to the present invention include polypropylene fibers, acrylic fibers, nylon fibers, wire rings commonly used, cheesecloth, Hellashan cloth, and the like.
本発明において、ポリウレタン発泡原液は不織布又は織
布の表面（ポリウレタンフォームのみの部分と反対側の
而）が少なくとも露出していればよいが、そのポリウレ
タン発泡原液が含浸されない部分の程度は不織布全体の
厚みの１１５〜４１５程度が好ましい。ここで、不織布
等に付着するポリウレタン発泡原液の量があまり少ない
と使用時に不織布等がポリウレタンフォーム部分から剥
がれる恐れがある。また、ポリウレタン発泡原液が不織
布等の表面まで完全に含浸した場合、異音が発生して好
ましくない。In the present invention, it is sufficient that the polyurethane foaming solution is exposed at least on the surface of the nonwoven fabric or woven fabric (the side opposite to the area containing only the polyurethane foam), but the extent to which the polyurethane foaming solution is not impregnated is limited to the entire nonwoven fabric. The thickness is preferably about 115 to 415. Here, if the amount of the polyurethane foaming stock solution that adheres to the nonwoven fabric or the like is too small, there is a risk that the nonwoven fabric or the like may peel off from the polyurethane foam portion during use. Furthermore, if the polyurethane foaming stock solution completely impregnates the surface of the nonwoven fabric, etc., abnormal noise will be generated, which is undesirable.
本発明において、ポリウレタン発泡原液の不織布等への
含浸量の制御は、例えば発泡原液の注入量、発泡圧、不
織布や織布を構成する繊維の径、この繊維の打込本数、
目付量等を適宜調節することにより行う。In the present invention, the amount of polyurethane foaming solution impregnated into the nonwoven fabric etc. can be controlled by, for example, the injection amount of the foaming solution, the foaming pressure, the diameter of the fibers constituting the nonwoven fabric or woven fabric, the number of fibers implanted, etc.
This is done by adjusting the basis weight etc. as appropriate.
本発明によれば、ポリウレタンフォームの表面に露出し
た不織布又は織布の存在により、ポリウレタンフォーム
とバネ、フレーム、パイプなどの鋼材との摩擦係数を小
さくして異音を防止できる。According to the present invention, the presence of the nonwoven fabric or woven fabric exposed on the surface of the polyurethane foam reduces the coefficient of friction between the polyurethane foam and steel materials such as springs, frames, and pipes, thereby preventing abnormal noise.
［実施例コ
以下、本発明の一実施例を第１図及び第２図を参照して
説明する。[Example 1] An example of the present invention will be described below with reference to FIGS. 1 and 2.
即ち、本実施例では、まず第２図図示のモールド用型１
の例えばバネ、フレーム、パイプなどが当たる部分に対
応する上型２のほぼ内面全体にポリプロピレン繊維から
なる不織布３を形成した。That is, in this embodiment, first, the molding die 1 shown in FIG.
A nonwoven fabric 3 made of polypropylene fibers was formed on almost the entire inner surface of the upper mold 2 corresponding to the parts that would come into contact with, for example, springs, frames, pipes, etc.
つづいて、モールド用型１内にポリウレタン発泡原液を
注入して発泡を行い、第１図に示すポリウレタンフォー
ムクツション４を形成した。ここで、このクツション４
は、ポリウレタン発泡原液のみが発泡された発泡部分４
ａと、前記発泡原液が不織布３に含浸した発泡部分４ｂ
と、不織布３のみの部分４Ｃから構成されている。この
際、不織布３のみの部分４Ｃの厚み（Ｈ）は、ポリウレ
タン発泡原液の注入量等を制御して例えば不織布のみの
部分４０表面（露出面）から不織布３全体の厚みの２１
５程度までとする。なお、図中の５は下型である。Subsequently, a polyurethane foaming stock solution was injected into the molding die 1 and foaming was performed to form a polyurethane foam cushion 4 shown in FIG. 1. Here, this cushion 4
is the foamed part 4 in which only the polyurethane foaming stock solution was foamed.
a, and a foamed portion 4b in which the nonwoven fabric 3 is impregnated with the foaming stock solution.
and a portion 4C of only the nonwoven fabric 3. At this time, the thickness (H) of the portion 4C of only the nonwoven fabric 3 can be adjusted by controlling the injection amount of the polyurethane foaming stock solution, etc., for example, from the surface (exposed surface) of the portion 40 of the nonwoven fabric only to 21 mm of the total thickness of the nonwoven fabric 3.
Up to about 5. Note that 5 in the figure is the lower mold.
しかして、上記実施例によれば、モールド用型１の例え
ばバネ、フレーム、パイプなどが当たる部分に対応する
上、型２のほぼ内面全体にポリプロピレン繊維からなる
不織布３を形成した後、モールド用型１内にポリウレタ
ン発泡原液を注入して発泡を行い、不織布３のみの部分
４Ｃが形成されるようにポリウレタンフォームクツショ
ン４を形成するため、表面に露出した不織布３の存在に
より、ポリウレタンフォーム４とバネ、フレーム。According to the above embodiment, after forming the nonwoven fabric 3 made of polypropylene fibers on almost the entire inner surface of the mold 2 in addition to corresponding to the parts of the mold 1 that are in contact with springs, frames, pipes, etc., In order to form the polyurethane foam cushion 4 by injecting the polyurethane foam stock solution into the mold 1 and foaming it so that only the portion 4C of the nonwoven fabric 3 is formed, the presence of the nonwoven fabric 3 exposed on the surface causes the polyurethane foam 4 to and spring, frame.
パイプなどの鋼材との摩擦係数を小さくして異音を防止
できる。It can prevent abnormal noise by reducing the coefficient of friction with steel materials such as pipes.
なお、上記実施例では、上型の内面のほぼ全体に不織布
をセットした場合について述べたが、これに限定されな
い。例えば、バネ、フレーム、パイプなどが当たる部分
に対応する上型又は下型の内面部分のみにセットすれば
十分異音防止の効果を発揮する。また、上記実施例では
、不織布のみの部分の厚みが不織布のみの部分の表面（
露出面）から不織布全体の厚みの２１５程度としたがこ
れに限定されず、大体不織布全体の厚みの１１５〜４１
５程度であれば上記実施例と同様に異音の発生を防止で
きる。In the above embodiments, the nonwoven fabric is set almost entirely on the inner surface of the upper die, but the present invention is not limited thereto. For example, if it is set only on the inner surface of the upper or lower mold that corresponds to the part that comes into contact with the spring, frame, pipe, etc., it will be sufficient to prevent abnormal noise. In addition, in the above example, the thickness of the part made only of nonwoven fabric is the surface of the part made only of nonwoven fabric (
The thickness of the entire non-woven fabric from the exposed surface is approximately 215, but is not limited to this, but is approximately 115 to 41 of the total thickness of the non-woven fabric.
If it is about 5, the occurrence of abnormal noise can be prevented as in the above embodiment.
［発明の効果］
以上詳述した如く本発明によれば、ポリウレタン発泡原
液が含浸しない不織布のみの部分の存在により、ポリウ
レタンフォームとバネ、フレーム。[Effects of the Invention] As detailed above, according to the present invention, polyurethane foam, a spring, and a frame are formed by the presence of a portion of only nonwoven fabric that is not impregnated with polyurethane foaming stock solution.
パイプなどの鋼材との摩擦係数を従来と比べ低減して、
異音が発生するのを防止し得る快適なりッション材の製
造方法を提供できる。By reducing the coefficient of friction with steel materials such as pipes compared to conventional products,
It is possible to provide a method for manufacturing a comfortable cushioning material that can prevent the generation of abnormal noise.
第１図は本発明方法により製造されたポリウレタンフォ
ームクツションの断面図、第２図は本発明で用いられる
モールド用型の斜視図である。
１・・・モールド用型、２・・・上型、３・・・不織布
、４・・・ポリウレタンフォームクツション、５・・・
Ｘ型。
出願人代理人 弁理士 鈴江武彦
第１図
第２図FIG. 1 is a sectional view of a polyurethane foam cushion manufactured by the method of the present invention, and FIG. 2 is a perspective view of a mold for use in the present invention. DESCRIPTION OF SYMBOLS 1...Mold mold, 2...Upper mold, 3...Nonwoven fabric, 4...Polyurethane foam cushion, 5...
X type. Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 2
Claims (1)
ム、パイプなどの鋼材の当たる部分に対応する箇所に不
織布又は織布をセットした後、前記モールド用型にポリ
ウレタン発泡原液を注入し、この発泡原液が前記不織布
又は織布における発泡原液の注入領域とは反対側の面を
除く部分にのみ含浸したポリウレタンフォームを形成す
ることを特徴とするクッション材の製造方法。After setting the non-woven fabric or woven fabric in the upper or lower mold of the mold, at least at the part corresponding to the part that will come into contact with steel materials such as springs, frames, pipes, etc., pour the polyurethane foam stock solution into the mold, and A method for manufacturing a cushioning material, which comprises forming a polyurethane foam impregnated with a stock solution only in a portion of the nonwoven fabric or woven fabric, excluding the surface opposite to the injection area of the foaming stock solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63129842A JP2542674B2 (en) | 1988-05-27 | 1988-05-27 | Cushion material manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63129842A JP2542674B2 (en) | 1988-05-27 | 1988-05-27 | Cushion material manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01299009A true JPH01299009A (en) | 1989-12-01 |
| JP2542674B2 JP2542674B2 (en) | 1996-10-09 |
Family
ID=15019584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63129842A Expired - Lifetime JP2542674B2 (en) | 1988-05-27 | 1988-05-27 | Cushion material manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2542674B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096639A (en) * | 1990-03-28 | 1992-03-17 | Woodbridge Foam Corporation | Process for manufacturing a padded element |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005021456B4 (en) | 2005-05-10 | 2007-02-08 | Dr.Ing.H.C. F. Porsche Ag | Service unit for supplementing equipment |
| DE102005021457B4 (en) | 2005-05-10 | 2007-02-08 | Dr.Ing.H.C. F. Porsche Ag | Service unit for supplementing equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5637412U (en) * | 1979-08-31 | 1981-04-09 | ||
| JPS6181918U (en) * | 1984-11-02 | 1986-05-30 |
-
1988
- 1988-05-27 JP JP63129842A patent/JP2542674B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5637412U (en) * | 1979-08-31 | 1981-04-09 | ||
| JPS6181918U (en) * | 1984-11-02 | 1986-05-30 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096639A (en) * | 1990-03-28 | 1992-03-17 | Woodbridge Foam Corporation | Process for manufacturing a padded element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2542674B2 (en) | 1996-10-09 |
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