JP2000033189A - Damping seat pad - Google Patents
Damping seat padInfo
- Publication number
- JP2000033189A JP2000033189A JP10218580A JP21858098A JP2000033189A JP 2000033189 A JP2000033189 A JP 2000033189A JP 10218580 A JP10218580 A JP 10218580A JP 21858098 A JP21858098 A JP 21858098A JP 2000033189 A JP2000033189 A JP 2000033189A
- Authority
- JP
- Japan
- Prior art keywords
- seat pad
- film
- molded product
- damping
- 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
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車等のシート
パッドに関し、更に詳述すると減衰特性を高めたシート
パッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat pad for an automobile or the like, and more particularly, to a seat pad having enhanced damping characteristics.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来よ
り、自動車用のシートパッドとしては、ポリウレタンフ
ォームのモールド品が用いられているが、従来のシート
パッドは、減衰特性の点で不十分である。即ち、他の特
性は要求値を満足しているのに、減衰性能のみ不十分と
いう問題があり、他の特性を損なわずにシートパッドの
減衰特性を高めることが望まれる。2. Description of the Related Art Conventionally, polyurethane foam molded products have been used as seat pads for automobiles, but conventional seat pads are insufficient in terms of damping characteristics. is there. In other words, there is a problem that only the damping performance is insufficient even though the other characteristics satisfy the required values, and it is desired to enhance the damping characteristics of the seat pad without deteriorating the other characteristics.
【０００３】この場合、シートパッドの減衰特性をコン
トロールする方法としては、ポリウレタンフォームモー
ルド品の通気性をコントロールする方法が考えられる。
ポリウレタンフォームモールド品の通気性は、ウレタン
発泡原料の組成、モールド条件などを選定することによ
り、ある程度のコントロールは可能であるが、大幅なコ
ントロールは実用上困難であり、シートパッドの減衰特
性を満足に高めることは困難であった。In this case, as a method of controlling the damping characteristic of the seat pad, a method of controlling the air permeability of a polyurethane foam molded article can be considered.
The air permeability of polyurethane foam molded products can be controlled to some extent by selecting the composition of the urethane foam raw material and the molding conditions, but it is difficult to practically control them, and the damping characteristics of the seat pad are satisfied. It was difficult to increase.
【０００４】本発明は、上記事情を改善するためになさ
れたもので、減衰特性を向上させた減衰性シートパッド
を提供することを目的とする。[0004] The present invention has been made to improve the above circumstances, and an object of the present invention is to provide a damping sheet pad having improved damping characteristics.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記目的を達
成するため、ポリウレタンフォームモールド品からなる
シートパッド本体の裏面にＪＩＳ−Ｌ１００４で測定し
た値として０〜５０ｃｃ／ｃｍ2／ｍｉｎの通気性を有
するフィルムを接着してなることを特徴とする減衰性シ
ートパッドを提供する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a ventilation system of 0 to 50 cc / cm 2 / min as measured by JIS-L1004 on the back surface of a seat pad body made of a polyurethane foam molded product. Provided is an attenuating sheet pad characterized by being bonded with a film having a property.
【０００６】本発明は、上記低通気性のフィルムをシー
トパッド本体に接着したことにより、共振周波数は変わ
らず、共振倍率をシートパッド本体よりも大幅に低下さ
せることができ、減衰特性を高めて、フィーリング的に
も大幅な減衰感を得ることができたものである。According to the present invention, since the low air-permeable film is bonded to the seat pad body, the resonance frequency does not change, the resonance magnification can be greatly reduced as compared with the seat pad body, and the damping characteristics are enhanced. Thus, a great feeling of damping can be obtained in terms of feeling.
【０００７】[0007]
【発明の実施の形態及び実施例】本発明の減衰性シート
パッドは、ポリウレタンフォームモールド品からなるシ
ートパッド本体の裏面に、低通気性フィルムを接着した
ものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The attenuating sheet pad of the present invention is obtained by bonding a low air permeable film to the back surface of a seat pad body made of a polyurethane foam molded product.
【０００８】上記シートパッド本体は、従来より公知の
シートパッド用の軟質又は半硬質ポリウレタンフォーム
モールド品を使用することができる。このモールド品
は、フォームコア部に表面層が形成されているものであ
り、この裏面側の通気性は、ＪＩＳ−Ｌ１００４で測定
した値として、通常４０〜５０ｃｃ／ｃｍ2／ｍｉｎで
あり、コア部の通気性が通常６０〜８０ｃｃ／ｃｍ2／
ｍｉｎであるのに比べ、低通気性である。また、このシ
ートパッド本体の共振周波数は通常３．０〜４．０Ｈ
ｚ、特に３．０〜３．５Ｈｚ、また共振倍率は通常３〜
６、特に４〜６である。As the seat pad body, a conventionally known flexible or semi-rigid polyurethane foam molded product for a seat pad can be used. This molded product has a surface layer formed on a foam core portion, and the air permeability on the back side thereof is usually 40 to 50 cc / cm 2 / min as measured by JIS-L1004. The air permeability of the part is usually 60 to 80 cc / cm 2 /
min, the air permeability is low. The resonance frequency of the seat pad body is usually 3.0 to 4.0H.
z, especially 3.0 to 3.5 Hz, and the resonance magnification is usually 3 to
6, especially 4-6.
【０００９】本発明は、上記シートパッド本体の裏面に
低通気性フィルムを接着したものである。図１、２はこ
れを示すもので、１は上記シートパッド本体、２はこの
パッド本体の裏面に接着された低通気性フィルムであ
る。According to the present invention, a low-breathable film is adhered to the back surface of the seat pad body. FIGS. 1 and 2 show this, wherein 1 is the above-mentioned seat pad main body, and 2 is a low air-permeable film adhered to the back surface of this pad main body.
【００１０】この場合、フィルムとしては特に制限され
ないが、例えばポリウレタンフィルムなどが好適に用い
られる。In this case, the film is not particularly limited, but for example, a polyurethane film is preferably used.
【００１１】ここで、フィルムとしては、ＪＩＳ−Ｌ１
００４で測定した値として、０〜５０ｃｃ／ｃｍ2／ｍ
ｉｎ、特に０〜３０ｃｃ／ｃｍ2／ｍｉｎであるものを
使用する。通気度が高すぎると、ポリウレタンフォーム
モールド品そのものと差がなくなり効果がなくなる。Here, the film is JIS-L1
0 to 50 cc / cm 2 / m
in, especially those having a flow rate of 0 to 30 cc / cm 2 / min. If the air permeability is too high, there is no difference from the polyurethane foam molded product itself, and the effect is lost.
【００１２】上記フィルムは、更に厚さが１０〜１００
μｍ、特に３０〜６０μｍであることが好ましく、フィ
ルムが薄すぎると、破断の可能性が高くなり好ましくな
く、フィルムが厚すぎると、コスト高になるため好まし
くない。また、フィルムは、ＪＩＳ Ａ硬度が８０〜１
５０、特に８０〜１００であるものが好ましい。The above film has a thickness of 10 to 100.
μm, especially 30 to 60 μm is preferable. If the film is too thin, the possibility of breakage increases, which is not preferable. If the film is too thick, the cost increases, which is not preferable. The film has a JIS A hardness of 80 to 1
Those which are 50, especially 80-100 are preferable.
【００１３】なお、フィルムとしては、無孔性フィルム
に上記通気度を満足するように、孔の数、大きさを選定
して均等に孔を穿設したものを使用することができる。As the film, it is possible to use a nonporous film in which the number and size of the holes are selected and holes are evenly formed so as to satisfy the above-mentioned air permeability.
【００１４】また、フィルムの接着は、ウレタン系、ア
クリル系などの接着剤、粘着剤を用いて行うことができ
る。The bonding of the film can be carried out by using a urethane-based or acrylic-based adhesive or pressure-sensitive adhesive.
【００１５】次に実験例を示す。 ［実験例］コールドキュアーで作製した４００ｍｍ×４
００ｍｍ×１００ｍｍのポリウレタンフォームモールド
品（比較品）を用意した。このモールド品の裏面側の通
気量は、ＪＩＳ−Ｌ１００４で測定した値として４６ｃ
ｃ／ｃｍ2／ｍｉｎであり、また振動特性は、共振周波
数が３．５Ｈｚ、共振倍率が４．０であった。Next, an experimental example will be described. [Experimental example] 400 mm x 4 manufactured by cold cure
A polyurethane foam molded product (comparative product) of 100 mm × 100 mm was prepared. The air permeability on the back side of this molded product was 46 c as a value measured according to JIS-L1004.
c / cm 2 / min, and the vibration characteristics were a resonance frequency of 3.5 Hz and a resonance magnification of 4.0.
【００１６】上記モールド品の裏面に、厚さ３０μｍ
で、通気量が２０ｃｃ／ｃｍ2／ｍｉｎ、及び０ｃｃ／
ｃｍ2／ｍｉｎのポリウレタンフィルムを接着した。On the back surface of the molded product, a thickness of 30 μm
And the air flow rate is 20 cc / cm 2 / min and 0 cc / cm 2 / min.
A polyurethane film of cm 2 / min was adhered.
【００１７】得られたシートパッドの共振周波数と共振
倍率との関係を上記モールド品と共に図３に示すが、図
３の結果から明らかなように、ポリウレタンフィルムを
接着した本発明シートパッドは、共振周波数は変わら
ず、共振倍率は、通気量２０ｃｃ／ｃｍ2／ｍｉｎの場
合は２．５（本発明品Ｎｏ．１）、通気量０ｃｃ／ｃｍ
2／ｍｉｎの場合は２．０（本発明品Ｎｏ．２）であ
り、減衰特性を高めるものであることが認められた。ま
た、これらの本発明品はフィーリング的にも大幅な減衰
感が得られたものであった。The relationship between the resonance frequency and the resonance magnification of the obtained seat pad is shown in FIG. 3 together with the above-mentioned molded product. As is clear from the results of FIG. 3, the seat pad of the present invention to which the polyurethane film is adhered has the resonance frequency. The frequency does not change, and the resonance magnification is 2.5 (invention product No. 1) when the air flow rate is 20 cc / cm 2 / min, and the air flow rate is 0 cc / cm.
In the case of 2 / min, it was 2.0 (Product No. 2 of the present invention), and it was confirmed that the attenuation characteristics were enhanced. In addition, these products of the present invention had a feeling of great attenuation in terms of feeling.
【００１８】[0018]
【発明の効果】本発明のシートパッドは、減衰性を高め
たものである。The seat pad of the present invention has an improved damping property.
【図１】本発明の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】同例の底から見た斜視図である。FIG. 2 is a perspective view of the same example as viewed from the bottom.
【図３】実施例、比較例の共振周波数と共振倍率との関
係を示すグラフである。FIG. 3 is a graph showing a relationship between a resonance frequency and a resonance magnification of an example and a comparative example.
１ シートパッド本体 ２ ポリウレタンフィルム 1 seat pad body 2 polyurethane film
Claims (2)
るシートパッド本体の裏面にＪＩＳ−Ｌ１００４で測定
した値として０〜５０ｃｃ／ｃｍ2／ｍｉｎの通気性を
有するフィルムを接着してなることを特徴とする減衰性
シートパッド。An attenuation characterized in that a film having a gas permeability of 0 to 50 cc / cm 2 / min as measured according to JIS-L1004 is adhered to the back surface of a seat pad body made of a polyurethane foam molded product. Seat pad.
ある請求項１記載の減衰性シートパッド。2. The damping sheet pad according to claim 1, wherein said film is a polyurethane film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21858098A JP3678266B2 (en) | 1998-07-16 | 1998-07-16 | Attenuating seat pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21858098A JP3678266B2 (en) | 1998-07-16 | 1998-07-16 | Attenuating seat pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000033189A true JP2000033189A (en) | 2000-02-02 |
| JP3678266B2 JP3678266B2 (en) | 2005-08-03 |
Family
ID=16722187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21858098A Expired - Fee Related JP3678266B2 (en) | 1998-07-16 | 1998-07-16 | Attenuating seat pad |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3678266B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002293863A (en) * | 2001-03-28 | 2002-10-09 | Mitsui Chemicals Inc | Flexible polyurethane foam and production method thereof |
| JP2003105050A (en) * | 2001-09-28 | 2003-04-09 | Mitsui Takeda Chemicals Inc | Method for manufacturing flexible polyurethane foam |
| JP2011050462A (en) * | 2009-08-31 | 2011-03-17 | Toyobo Co Ltd | Thin seat excellent in comfortability |
-
1998
- 1998-07-16 JP JP21858098A patent/JP3678266B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002293863A (en) * | 2001-03-28 | 2002-10-09 | Mitsui Chemicals Inc | Flexible polyurethane foam and production method thereof |
| JP2003105050A (en) * | 2001-09-28 | 2003-04-09 | Mitsui Takeda Chemicals Inc | Method for manufacturing flexible polyurethane foam |
| JP2011050462A (en) * | 2009-08-31 | 2011-03-17 | Toyobo Co Ltd | Thin seat excellent in comfortability |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3678266B2 (en) | 2005-08-03 |
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