JP2003304951A - Cushion - Google Patents
CushionInfo
- Publication number
- JP2003304951A JP2003304951A JP2002112914A JP2002112914A JP2003304951A JP 2003304951 A JP2003304951 A JP 2003304951A JP 2002112914 A JP2002112914 A JP 2002112914A JP 2002112914 A JP2002112914 A JP 2002112914A JP 2003304951 A JP2003304951 A JP 2003304951A
- Authority
- JP
- Japan
- Prior art keywords
- cushion body
- foam
- cushion
- cell
- cells
- 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
- 239000006260 foam Substances 0.000 claims abstract description 60
- 239000010410 layer Substances 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 25
- 239000002344 surface layer Substances 0.000 claims abstract description 11
- 238000007731 hot pressing Methods 0.000 claims description 18
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 54
- 235000019589 hardness Nutrition 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 11
- 238000005187 foaming Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010016322 Feeling abnormal Diseases 0.000 description 1
- 101100376154 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TY2B-F gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000002287 horizontal cell Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (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、発泡体からなる
クッション体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushion body made of foam.
【０００２】[0002]
【従来の技術】従来、自動車の座席や座椅子等に、ウレ
タン発泡体等からなるクッション体が多用されている。
しかし、従来のクッション体は、着座する際の初期圧縮
時に着座者に硬さを感じさせることがある。2. Description of the Related Art Conventionally, cushion bodies made of urethane foam or the like have been widely used in automobile seats and chairs.
However, the conventional cushion body sometimes causes the seated person to feel hardness during initial compression when seated.
【０００３】クッション体の初期圧縮時の硬さを改善す
る方法として、クッション体表面にスリットを形成して
変形し易くしたり、低硬度の発泡体と高硬度の発泡体を
積層して低硬度側を表層としたりする方法が提案されて
いる。As a method for improving the hardness of the cushion body at the time of initial compression, a slit is formed on the surface of the cushion body to facilitate deformation, or a low hardness foam and a high hardness foam are laminated to form a low hardness. A method has been proposed in which the side is the surface.
【０００４】[0004]
【発明が解決しようとする課題】ところが、前記クッシ
ョン体表面にスリットを形成したものにあっては、クッ
ション体表面が弱くなるため、裂けや破れの原因になり
やすい。また、硬さの異なる発泡体を積層したものにあ
っては、表面を柔らかくするために表層の発泡体と基層
の発泡体とで硬度差を大きくすると、着座時に硬さの急
変による違和感を生じやすくなる。しかも、硬度の異な
る発泡体を積層したものは、接着等により発泡体を一体
化する作業が必要になるため、作業が面倒で高価にな
る。However, in the case where the slit is formed on the surface of the cushion body, the surface of the cushion body is weakened, which is likely to cause tearing or tearing. Also, in the case of laminating foams with different hardness, if the hardness difference between the foam of the surface layer and the foam of the base layer is increased in order to soften the surface, a feeling of strangeness may occur due to a sudden change in hardness when sitting. It will be easier. Moreover, since the foams having different hardnesses are laminated, it is necessary to integrate the foams by adhesion or the like, which is troublesome and expensive.
【０００５】この発明は、前記の点に鑑みなされたもの
で、着座する際の初期圧縮時に硬さによる不快感を感じ
難く、しかも表面の強度低下が無く、さらに硬さの急変
による違和感を生じ難い安価なクッション体を提供する
ものである。The present invention has been made in view of the above points, and it is difficult to feel discomfort due to hardness at the time of initial compression at the time of sitting, and further, the strength of the surface does not decrease, and further, a strange feeling due to a sudden change in hardness occurs. This provides a difficult and inexpensive cushioning body.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、発泡
体からなるクッション体であって、前記クッション体に
対して垂直方向のセル径が水平方向のセル径以下にされ
た横拡径セルからなる横拡径セル層と、前記クッション
体に対して垂直方向に長い縦長セルからなる縦長セル層
とが、前記クッション体の垂直方向に隣接すると共に、
前記横拡径セル層がクッション体の片側又は両側の表層
として形成された発泡体からなることを特徴とする。According to a first aspect of the present invention, there is provided a cushion body made of a foamed body, in which a cell diameter in a vertical direction with respect to the cushion body is a lateral diameter expansion not larger than a cell diameter in a horizontal direction. A laterally expanded cell layer made of cells and a vertically elongated cell layer made of vertically elongated cells in the vertical direction with respect to the cushion body are adjacent to each other in the vertical direction of the cushion body,
The laterally expanded cell layer is made of a foam formed as a surface layer on one side or both sides of the cushion body.
【０００７】請求項２の発明は、請求項１におけるクッ
ション体の発泡体を、前記クッション体に対して垂直方
向に長い縦長セルからなる縦長セル構造の発泡体が、前
記縦長セルにおける長径の圧縮方向に熱プレスされたも
のとしたことを特徴とする。According to a second aspect of the present invention, the foamed body of the cushion body according to the first aspect is a foamed body having a vertically long cell structure having vertically long cells vertically extending with respect to the cushion body. It is characterized in that it is heat-pressed in the direction.
【０００８】請求項３の発明は、請求項２におけるクッ
ション体の発泡体を、前記発泡体の熱プレス前の元厚に
対して１０〜２５％の圧縮率で熱プレスされたものとし
たことを特徴とする。According to a third aspect of the present invention, the foam body of the cushion body according to the second aspect is heat-pressed at a compression rate of 10 to 25% of the original thickness of the foam body before hot-pressing. Is characterized by.
【０００９】請求項４の発明は、請求項２又は３におけ
る縦長セル構造の発泡体が、軟質ウレタンスラブフォー
ムの裁断品からなることを特徴とする。The invention of claim 4 is characterized in that the foam having the vertically long cell structure in claim 2 or 3 is a cut product of a soft urethane slab foam.
【００１０】[0010]
【発明の実施の形態】以下添付の図面に従ってこの発明
を詳細に説明する。図１はこの発明に係る一実施例のク
ッション体の断面図、図２は図１のＡ部を拡大した概略
図、図３は他の実施例に係るクッション体の断面図、図
４はこの発明に係る一実施例のクッション体における製
造時の熱プレスを示す断面図、図５は軟質ウレタンスラ
ブフォームからの発泡体の裁断を示す概略図である。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. 1 is a sectional view of a cushion body according to an embodiment of the present invention, FIG. 2 is an enlarged schematic view of portion A of FIG. 1, FIG. 3 is a sectional view of a cushion body according to another embodiment, and FIG. FIG. 5 is a cross-sectional view showing hot pressing during manufacturing in the cushion body of one embodiment according to the invention, and FIG. 5 is a schematic view showing cutting of a foam body from a soft urethane slab foam.
【００１１】図１及び図２に示すこの発明の一実施例に
係るクッション体１０は、横拡径セル層１１と縦長セル
層２１とが、前記クッション体１０に対して垂直方向Ｖ
に隣接すると共に、前記横拡径セル層１１がクッション
体１０の両側の表層１２，１２として形成された一つの
発泡体１０ａで構成されている。前記発泡体１０ａは、
軟質ウレタンフォーム、特には軟質ウレタンスラブフォ
ームの裁断品のような弾性を有するものが用いられる。
符号Ｈはクッション体１０に対して水平方向を示す。な
お、前記垂直方向Ｖは、前記クッション体１０の座面と
なる片側表面１１ａに垂直な方向と一致する。また、前
記セルは気孔とも称される。In the cushion body 10 according to one embodiment of the present invention shown in FIGS. 1 and 2, the laterally expanded cell layer 11 and the vertically elongated cell layer 21 are arranged in the vertical direction V with respect to the cushion body 10.
And the laterally expanded cell layer 11 is formed of a single foam 10a formed as the surface layers 12, 12 on both sides of the cushion body 10. The foam 10a is
A flexible urethane foam, in particular, a flexible urethane slab foam having elasticity such as a cut product is used.
Reference numeral H indicates the horizontal direction with respect to the cushion body 10. The vertical direction V coincides with the direction perpendicular to the one-side surface 11a serving as the seat surface of the cushion body 10. The cells are also called pores.
【００１２】前記横拡径セル層１１は、前記クッション
体１０の垂直方向のセル径ｄｖ１が水平方向のセル径ｄ
ｈ１以下にされた横拡径セル１１ｓで構成された層から
なる。他方、前記縦長セル層２１は、前記クッション体
１０に対して垂直方向のセル径ｄｖ２が水平方向のセル
径ｄｈ２よりも大の縦長セル２１ｓで構成された層から
なる。なお、この実施例のクッション体１０において
は、前記横拡径セル層１１がクッション体１０の両側表
層１２，１２として形成されているため、前記縦長セル
層２１がクッション体１０の中間層２２を構成してい
る。前記、横拡径セル層１１からなる表層１２はクッシ
ョン体１０の片側のみに形成されてもよい。前記横拡径
セル層１１からなる表層１２の厚み、この例では両側の
表層１２，１２の合計厚みは、前記クッション体１０の
全厚みを１００％とすると５〜２５％が好ましい。この
範囲にすると、クッション性や耐久性を損なわずに初期
圧縮時の硬さが軽減されて座り心地が良好になる。In the laterally expanded cell layer 11, the vertical cell diameter dv1 of the cushion body 10 is the horizontal cell diameter d.
It is composed of a layer composed of laterally expanded cells 11s having a diameter of h1 or less. On the other hand, the vertically long cell layer 21 is formed of a vertically long cell 21s having a cell diameter dv2 in the vertical direction with respect to the cushion body 10 larger than a cell diameter dh2 in the horizontal direction. In the cushion body 10 of this embodiment, since the laterally expanded cell layer 11 is formed as the both surface layers 12 and 12 of the cushion body 10, the vertically elongated cell layer 21 forms the intermediate layer 22 of the cushion body 10. I am configuring. The surface layer 12 including the laterally expanded cell layer 11 may be formed on only one side of the cushion body 10. The thickness of the surface layer 12 made of the laterally expanded cell layer 11, in this example, the total thickness of the surface layers 12 and 12 on both sides is preferably 5 to 25% when the total thickness of the cushion body 10 is 100%. Within this range, the hardness at the time of initial compression is reduced without impairing the cushioning property and durability, and the sitting comfort is improved.
【００１３】前記クッション体１０の発泡体１０ａは、
図４に示すように、前記クッション体１０に対して垂直
方向Ｖに長い縦長セル２１ｓで構成される縦長セル構造
の発泡体Ｆが、前記縦長セル２１ｓの長径に相当する垂
直方向のセル径ｄｖ２の圧縮方向Ｐへ熱板４１で熱プレ
スされ、放冷等によって冷却されることにより圧縮形状
に塑性変形したものが好ましい。前記熱プレス時、縦長
セル構造の発泡体Ｆは、弾性を有するため、熱板４１で
押圧される表面付近で主に圧縮されて、表面から離れる
発泡体中央部では圧縮量が少なくなるので、効率よく表
面付近の縦長セルが圧縮され、水平方向Ｈに拡径した前
記横拡径セル１１ｓになる。熱プレスの温度は、熱プレ
スされる発泡体の種類により異なるが、発泡体が軟質ウ
レタンフォーム（軟質ウレタンスラブフォームを含む）
の場合には１２０〜２４０℃が好ましい。The foam 10a of the cushion body 10 is
As shown in FIG. 4, a foam F having a vertically long cell structure composed of vertically long cells 21s that are long in the vertical direction V with respect to the cushion body 10 has a vertical cell diameter dv2 corresponding to the long diameter of the vertically long cells 21s. It is preferable that the sheet is hot-pressed in the compression direction P by the hot plate 41 and is plastically deformed into a compressed shape by being cooled by cooling or the like. At the time of the hot pressing, since the foam F having a vertically long cell structure has elasticity, the foam F is mainly compressed near the surface pressed by the hot plate 41, and the compression amount is small in the foam central portion away from the surface. The vertically elongated cells near the surface are efficiently compressed to become the horizontally expanded cells 11s that are expanded in the horizontal direction H. The temperature of hot pressing differs depending on the type of foam to be hot pressed, but the foam is a soft urethane foam (including soft urethane slab foam).
In the case of 120-240 degreeC is preferable.
【００１４】なお、図４における一方の熱板４１を、加
熱しないプレス板に代えれば、図３に示すように、横拡
径セル層１１からなる表層１２が片側表面のみに形成さ
れた発泡体からなるクッション体１０Ａを得ることがで
きる。この場合、前記縦長セル層２１は、前記クッショ
ン体１０Ａの基層２３を構成する。If one of the hot plates 41 in FIG. 4 is replaced with a press plate that is not heated, as shown in FIG. 3, a foam body in which the surface layer 12 composed of the laterally expanded cell layers 11 is formed on only one surface is formed. It is possible to obtain a cushion body 10A composed of In this case, the vertically long cell layer 21 constitutes the base layer 23 of the cushion body 10A.
【００１５】前記熱プレスされた発泡体１０ａは、前記
発泡体１０ａの熱プレス前の元厚に対して圧縮率１０〜
２５％で熱プレスされて塑性変形したものが好ましい。
この範囲の圧縮率でプレスすれば、発泡体１０ａの表面
側でセルが完全に潰れず、適度なソフト感を得ることが
できる。なお、前記圧縮率（％）は（元厚−圧縮時の厚
み）÷元厚×１００（％）を言う。熱プレス前の元厚
は、１〜３０ｃｍの範囲が、クッション体として好まし
い。The heat-pressed foam 10a has a compression ratio of 10 to the original thickness of the foam 10a before hot pressing.
It is preferable that the material is hot pressed at 25% and plastically deformed.
By pressing at a compression ratio within this range, the cells are not completely crushed on the surface side of the foam 10a, and an appropriate soft feeling can be obtained. The compression rate (%) is (original thickness-thickness at compression) / original thickness x 100 (%). The original thickness before hot pressing is preferably in the range of 1 to 30 cm as a cushion body.
【００１６】前記縦長セル構造の発泡体Ｆとしては、軟
質ウレタンスラブフォームの裁断品が好適である。前記
軟質ウレタンスラブフォームは原反とも称されるもので
あって、離型紙上にウレタンフォーム原料を流して鉛直
方向上向きに発泡させたものである。図５に示すよう
に、軟質ウレタンスラブフォーム３０は、発泡方向Ｋに
対して平行方向Ｋｕ（軟質ウレタンスラブフォーム３０
に対して垂直方向と一致する）に縦長なセル構造となっ
ているため、前記軟質ウレタンスラブフォーム３０を発
泡方向Ｋに対して直角方向Ｋｓに裁断し、得られた所要
厚みの発泡体Ｆに対して、裁断面Ｆａを熱プレスすれ
ば、容易に前記クッション体１０の発泡体１０ａが得ら
れる。As the foam F having the vertically long cell structure, a cut product of a soft urethane slab foam is suitable. The soft urethane slab foam is also referred to as an original fabric, and is made by pouring a urethane foam raw material on a release paper and foaming it vertically upward. As shown in FIG. 5, the soft urethane slab foam 30 has a direction parallel to the foaming direction K (the soft urethane slab foam 30).
Since it has a vertically long cell structure, the flexible urethane slab foam 30 is cut in a direction Ks perpendicular to the foaming direction K to obtain a foam F having a required thickness. On the other hand, if the cut surface Fa is hot pressed, the foamed body 10a of the cushion body 10 can be easily obtained.
【００１７】（実施例）密度４０±２ｋｇ／ｍ3、硬さ
２１０．８±３９．２Ｎ（ＪＩＳ Ｋ ６４００：９８
に準拠）の軟質ウレタンスラブフォームを、発泡方向に
対して直角方向に裁断して５５×４００×４００ｍｍの
縦長セル構造の発泡体を得、その発泡体を熱プレス装置
の熱板間に配置して、圧縮率１８％となるように４５ｍ
ｍの厚みに熱プレスし、その状態を２１０℃で６分間保
持した。その後、熱プレス装置から発泡体を取り出し、
常温で放置してこの発明の実施例であるクッション体を
得た。実施例のクッション体は、厚み４５ｍｍであっ
た。(Example) Density 40 ± 2 kg / m 3 , hardness 210.8 ± 39.2 N (JIS K 6400: 98)
The flexible urethane slab foam of (1) is cut in a direction perpendicular to the foaming direction to obtain a foam having a vertically long cell structure of 55 × 400 × 400 mm, and the foam is placed between hot plates of a hot press machine. 45m so that the compression rate is 18%
It was hot pressed to a thickness of m and held at 210 ° C. for 6 minutes. Then take out the foam from the hot press machine,
It was left at room temperature to obtain a cushion body which is an example of the present invention. The cushion body of the example had a thickness of 45 mm.
【００１８】前記実施例のクッション体を、セル層の厚
みが観察できる方向で裁断し、熱プレス時に上側とされ
た上側表面から内層に至るまで、セルの分布変化を目視
で判定した。その結果、熱プレス時に上側とされた上側
表面には横拡径セル層からなる表層が厚み３．９ｍｍで
形成されており、また熱プレス時に下側とされた下側表
面には横拡径セル層が厚み３．４ｍｍで形成されてお
り、クッション体の全厚み（４５ｍｍ）に対して横拡径
セル層の厚み（３．９ｍｍ＋３．４ｍｍ＝７．３ｍｍ）
は１６．２％であった。なお、熱プレス後の２４時間、
常温で実施例のクッション体を放置したが、実施例のク
ッション体は、厚み及び形状に変化が無く、熱プレスに
より塑性変形して形状が固定されているのを確認でき
た。The cushion body of the above example was cut in a direction in which the thickness of the cell layer could be observed, and the change in cell distribution was visually determined from the upper surface, which was the upper side during hot pressing, to the inner layer. As a result, a surface layer consisting of a laterally expanded cell layer was formed with a thickness of 3.9 mm on the upper surface that was the upper side during hot pressing, and the lateral expanded diameter was formed on the lower surface that was the lower side during hot pressing. The cell layer is formed with a thickness of 3.4 mm, and the thickness of the laterally expanded cell layer (3.9 mm + 3.4 mm = 7.3 mm) with respect to the total thickness (45 mm) of the cushion body.
Was 16.2%. 24 hours after hot pressing,
Although the cushion body of the example was left at room temperature, it was confirmed that the cushion body of the example had no change in thickness and shape, and was plastically deformed by hot pressing to fix the shape.
【００１９】また、実施例のクッション体に対して、荷
重と撓みの関係をＪＩＳ Ｋ ６４００：９８（付属
書）にしたがい測定した。比較のため、前記熱プレスを
行っていない縦長セルからなる比較例１のクッション体
と、圧縮率３％で熱プレスした比較例２のクッション体
と、圧縮率３０％で熱プレスした比較例３のクッション
体についても、実施例と同様にして荷重と撓みの関係を
測定した。測定結果を図６〜図７に示す。Further, the relationship between the load and the flexure of the cushion body of the example was measured according to JIS K 6400: 98 (appendix). For comparison, the cushion body of Comparative Example 1 composed of vertically elongated cells not subjected to the hot pressing, the cushion body of Comparative Example 2 hot pressed at a compression rate of 3%, and the Comparative Example 3 hot pressed at a compression rate of 30%. With respect to the cushion body, the relationship between the load and the flexure was measured in the same manner as in the example. The measurement results are shown in FIGS.
【００２０】測定結果によると、縦長セルからなる比較
例１のクッション体においては初期圧縮時の荷重増加が
大きく、しかも荷重増加の程度が急に低下するショルダ
ー部Ｓと称される部分が存在し、圧縮初期の硬さを感じ
るものであることがわかる。それに対し、実施例のクッ
ション体は、初期圧縮時の荷重増加が緩やかで、しかも
ショルダー部が明確ではなく、圧縮初期の硬さを感じ難
いものであることがわかる。また、熱プレス時の圧縮率
が３％の比較例２のクッション体においては、比較例１
のクッション体と同様に初期圧縮時の荷重増加が大き
く、しかもショルダー部Ｓが明確に現れているので、圧
縮初期の硬さを感じるものであることがわかる。それに
対し、熱プレス時の圧縮率が３０％の比較例３のクッシ
ョン体においては、撓み率（圧縮率）が５０％以上にな
ると、荷重の増大が他の比較例及び実施例のクッション
体よりも著しく大きくなるため、クッション体としての
性能が変化してしまう。According to the measurement results, in the cushion body of Comparative Example 1 consisting of the vertically long cells, there is a portion called shoulder portion S where the load increase at the initial compression is large and the degree of load increase sharply decreases. It can be seen that the hardness at the initial stage of compression is felt. On the other hand, in the cushion body of the example, the load increase at the initial compression is gentle, the shoulder portion is not clear, and it is difficult to feel the hardness at the initial stage of compression. Further, in the cushion body of Comparative Example 2 having a compressibility of 3% during hot pressing, Comparative Example 1
Similar to the cushion body, the load increase at the initial compression is large and the shoulder portion S is clearly shown, so that it is understood that the hardness at the initial stage of compression is felt. On the other hand, in the cushion body of Comparative Example 3 having a compression rate of 30% at the time of hot pressing, when the bending rate (compression rate) is 50% or more, the load increases more than the cushion bodies of other Comparative Examples and Examples. Also becomes significantly larger, and the performance as a cushion body changes.
【００２１】[0021]
【発明の効果】以上図示し説明したように、この発明の
クッション体によれば、クッション体の表面に強度低下
の原因となるスリット等を形成することなく着座時の硬
さ感及び違和感を解消できるので、着座感のみならず表
面の耐久性に優れる効果がある。As shown and described above, according to the cushion body of the present invention, the feeling of hardness and discomfort at the time of sitting is eliminated without forming slits or the like on the surface of the cushion body, which cause a decrease in strength. As a result, not only the feeling of sitting but also the durability of the surface is excellent.
【００２２】さらにこの発明のクッション体は、縦長セ
ル構造の発泡体を熱プレスすることにより容易に得るこ
とができ、複数の発泡体を積層接着する作業が不要なた
め、安価となる。Furthermore, the cushion body of the present invention can be easily obtained by hot pressing a foam having a vertically long cell structure and does not require the work of laminating and adhering a plurality of foams, so that it is inexpensive.
【図１】この発明に係る一実施例のクッション体の断面
図である。FIG. 1 is a sectional view of a cushion body according to an embodiment of the present invention.
【図２】図１のＡ部を拡大した概略図である。FIG. 2 is an enlarged schematic view of part A of FIG.
【図３】他の実施例に係るクッション体の断面図であ
る。FIG. 3 is a cross-sectional view of a cushion body according to another embodiment.
【図４】この発明に係る一実施例のクッション体におけ
る製造時の熱プレスを示す断面図である。FIG. 4 is a cross-sectional view showing hot pressing at the time of manufacturing the cushion body according to one embodiment of the present invention.
【図５】軟質ウレタンスラブフォームからの発泡体の裁
断を示す概略図である。FIG. 5 is a schematic view showing cutting of a foamed body from a flexible urethane slab foam.
【図６】実施例及び比較例１の荷重−撓み曲線である。6 is a load-deflection curve of Example and Comparative Example 1. FIG.
【図７】比較例２及び比較例３の荷重−撓み曲線であ
る。7 is a load-deflection curve of Comparative Example 2 and Comparative Example 3. FIG.
１０ クッション体 １１ 横拡径セル層 １１ｓ 横拡径セル １２ 表層 ２１ 縦長セル層 ２１ｓ 縦長セル ２２ 中間層 ２３ 基層 ３０ 軟質ウレタンスラブフォーム Ｈ クッション体に対して水平方向 Ｖ クッション体に対して垂直方向 ｄｈ１ クッション体に対して水平方向のセル径 ｄｈ２ クッション体に対して水平方向のセル径 ｄｖ１ クッション体に対して垂直方向のセル径 ｄｖ２ クッション体に対して垂直方向のセル径 10 cushion body 11 Laterally expanded cell layer 11s horizontal expansion cell 12 surface 21 Vertical cell layer 21s Vertical cell 22 Middle class 23 Base layer 30 Soft Urethane Slab Foam Horizontal direction to H cushion body V direction vertical to the cushion body dh1 Cell diameter in the horizontal direction with respect to the cushion body dh2 Cell diameter in the horizontal direction with respect to the cushion body dv1 Cell diameter in the direction perpendicular to the cushion body dv2 Cell diameter in the direction perpendicular to the cushion body
───────────────────────────────────────────────────── 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 Ｂ２９Ｋ 105:04 Ｂ２９Ｌ 31:58 Ｂ２９Ｌ 31:58 (72)発明者 大嶽 秋吉 愛知県安城市今池町３−１−36 株式会社 イノアックコーポレーション安城事業所内 Ｆターム(参考） 3B096 AB07 AD07 4F204 AA42 AA50 AC01 AD17 AG20 AG21 AG26 AH26 FA01 FB01 FE18 FF01 FF46 FF50 FF51 FG01 FG04 FG05 FN01 FN06 FN11 4F212 AA31 AG03 AG20 UA15 UC02 UG01 UN29 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification code FI theme code (reference) B29K 105: 04 B29K 105: 04 B29L 31:58 B29L 31:58 (72) Inventor Akiyoshi Otake Anjo City, Aichi Prefecture 3-1-36 Imaikecho Inoac Corporation F-term in Anjo Plant (reference) 3B096 AB07 AD07 4F204 AA42 AA50 AC01 AD17 AG20 AG21 AG26 AH26 FA01 FB01 FE18 FF01 FF46 FF50 FF51 FG01 FG04 FG05 FN01 FN06 FN11 AG02A20 A20 UG01 UN29
Claims (4)
前記クッション体に対して垂直方向のセル径が水平方向
のセル径以下にされた横拡径セルからなる横拡径セル層
と、前記クッション体に対して垂直方向に長い縦長セル
からなる縦長セル層とが、前記クッション体の垂直方向
に隣接すると共に、前記横拡径セル層がクッション体の
片側又は両側の表層として形成された発泡体からなるこ
とを特徴とするクッション体。1. A cushion body made of foam, comprising:
A laterally expanded cell layer composed of laterally expanded cells in which the cell diameter in the vertical direction with respect to the cushion body is equal to or smaller than the cell diameter in the horizontal direction, and a vertically elongated cell composed of vertically elongated cells vertically long with respect to the cushion body. A cushion body, wherein the layer is adjacent to the cushion body in a vertical direction, and the laterally expanded cell layer is made of a foam formed as a surface layer on one side or both sides of the cushion body.
ン体に対して垂直方向に長い縦長セルからなる縦長セル
構造の発泡体が、前記縦長セルにおける長径の圧縮方向
に熱プレスされたものからなることを特徴とする請求項
１に記載されたクッション体。2. The foam body of the cushion body comprises a foam body having a vertically long cell structure having vertically long cells that are long in the vertical direction with respect to the cushion body, and is hot pressed in the compression direction of the long diameter of the vertically long cells. The cushion body according to claim 1, wherein:
熱プレス前の元厚に対して１０〜２５％の圧縮率で熱プ
レスされたものからなることを特徴とする請求項２に記
載されたクッション体。3. The foam of the cushion body is formed by hot pressing at a compression rate of 10 to 25% of the original thickness of the foam before hot pressing. Cushioned body.
スラブフォームの裁断品からなることを特徴とする請求
項２又は３に記載されたクッション体。4. The cushion body according to claim 2 or 3, wherein the foam having a vertically long cell structure is formed by cutting a soft urethane slab foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002112914A JP4086531B2 (en) | 2002-04-16 | 2002-04-16 | Cushion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002112914A JP4086531B2 (en) | 2002-04-16 | 2002-04-16 | Cushion body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003304951A true JP2003304951A (en) | 2003-10-28 |
| JP4086531B2 JP4086531B2 (en) | 2008-05-14 |
Family
ID=29395244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002112914A Expired - Fee Related JP4086531B2 (en) | 2002-04-16 | 2002-04-16 | Cushion body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4086531B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007010766A1 (en) * | 2005-07-15 | 2007-01-25 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
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2002
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| US8318298B2 (en) | 2005-07-15 | 2012-11-27 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| WO2007010766A1 (en) * | 2005-07-15 | 2007-01-25 | Toyo Tire & Rubber Co., Ltd. | Layered sheets and processes for producing the same |
| KR100960585B1 (en) * | 2005-07-15 | 2010-06-03 | 도요 고무 고교 가부시키가이샤 | Laminated sheet and its manufacturing method |
| JP2007045143A (en) * | 2005-07-15 | 2007-02-22 | Toyo Tire & Rubber Co Ltd | LAMINATED SHEET MANUFACTURING METHOD AND LAMINATED SHEET |
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| JP2007245571A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminated sheet and manufacturing method thereof |
| JP2007245575A (en) * | 2006-03-16 | 2007-09-27 | Toyo Tire & Rubber Co Ltd | Laminated sheet |
| JP2008023954A (en) * | 2006-07-25 | 2008-02-07 | Ee T Giken Kk | Manufacturing method of foam-containing fibrous molding |
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