JP3946495B2 - Bed mattress - Google Patents

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Publication number
JP3946495B2
JP3946495B2 JP2001350094A JP2001350094A JP3946495B2 JP 3946495 B2 JP3946495 B2 JP 3946495B2 JP 2001350094 A JP2001350094 A JP 2001350094A JP 2001350094 A JP2001350094 A JP 2001350094A JP 3946495 B2 JP3946495 B2 JP 3946495B2
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Japan
Prior art keywords
intermediate layer
bed mattress
lump
layers
elastic body
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JP2003144273A (en
Inventor
武 吉村
胆斗 太田
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Inoac Corp
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Inoac Corp
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【０００１】
【発明の属する技術分野】
この発明は、多層構造からなるベッド用マットレスに関する。
【０００２】
【従来の技術】
従来、例えばウレタンフォームからなるベッド用マットレスは、快適な接触感と腰痛等を回避するために表面にプロファイル加工して凹凸面を形成したもののほか、硬さの異なるウレタンフォームを積層するなどしてクッション性を高めたものなどが提案されている。
【０００３】
しかるに、人体の頭部や胸部、腰部、脚部の体重比率は当然異なり、各部位によってマットレスにかかる体圧は均等ではないため、これまでのように均一な素材や、単純な素材の積層、あるいは単純なプロファイル加工したものでは、十分に対応することは容易ではない。
【０００４】
また、就寝中の汗や熱がマットレス内に滞留する、いわゆる熱ごもりは使用者に不快感や寝心地の悪さを与えるのみならず、マットレスの衛生面でも好ましくないなどの問題点がある。これに対しては、例えばマットレスに複数の放熱孔を形成することが提案されている。
【０００５】
しかしながら、前記放熱のための孔を形成する方法も、マットレスの形状保持のための剛性がなくならないよう１０〜１５φの小径のものしか形成することができず、充分な放熱効果が得られるものではなかった。特にウレタンフォーム等のようなマットレス用素材は、断熱材としても用いられ、熱を保持する効果を持つものであるため、放熱は容易ではない。
【０００６】
【発明が解決しようとする課題】
この発明は前記の点に鑑みなされたもので、熱ごもりを解消できる高い通気性を有し、しかも使用者の体圧を分散して良好な感触が得られる新規なベッド用マットレスを提供するものである。
【０００７】
【課題を解決するための手段】
すなわち、請求項１の発明は、中間層を有する少なくとも三層のベッド用マットレスにおいて、前記中間層が、複数の塊状物を少なくとも一部の塊状物間にベッド用マットレスの側部外方と通じる通気用隙間が残るようにして配置し前記中間層両側の層の内側面に固定した層で構成され、中間層両側の層が少なくともベッド用マットレスの厚み方向に通気性を有する弾性体からなると共に、前記中間層両側の層のうち一側の層の弾性体は通気性１００〜２００ｌ／ｍｉｎ、他側の層の弾性体は通気性５０〜８０ｌ／ｍｉｎからなり、前記中間層の塊状物間の通気用隙間を介してベッド用マットレスの厚み方向両側外方と中間層の側部外方間で通気性を有し、塊状物の平面視面積の合計が中間層の平面視面積に対して３０〜９０％であることを特徴とするベッド用マットレスに係る。
【０００８】
また、請求項２の発明は、中間層を有する少なくとも三層のベッド用マットレスにおいて、前記中間層が、複数の塊状物を少なくとも一部の塊状物間にベッド用マットレスの側部外方と通じる通気用隙間が残るようにして配置し前記中間層両側の層の内側面に固定した層で構成され、中間層両側の層が少なくともベッド用マットレスの厚み方向に通気性を有する弾性体からなると共に、前記中間層両側の層のうち一側の層の弾性体は通気性１００〜２００ｌ／ｍｉｎ、他側の層の弾性体は通気性５０〜８０ｌ／ｍｉｎからなり、前記中間層の塊状物間の通気用隙間を介してベッド用マットレスの厚み方向両側外方と中間層の側部外方間で通気性を有し、状物の配置密度が中間層内で部分的に異なり、頭部や腰部を支持する部分については塊状物の数を増やして配置密度を高め、足や背中を支持する部分については塊状物の数を減少させて配置密度を減らしたことを特徴とするベッド用マットレスに係る。
【０００９】
請求項３の発明は、請求項１または２において、塊状物が弾性体からなることを特徴とする。
【００１０】
請求項４の発明は、請求項３において、塊状物の硬さが３０〜５００Ｎであることを特徴とする。
【００１１】
【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はこの発明の一実施例に係るベッド用マットレスを示す部分切り欠き斜視図、図２は図１の２−２断面図、図３は塊状物の他の固定例を示す断面図、図４はベッド用マットレスの他の例を示す部分切り欠き斜視図、図５は図４の５−５断面図である。
【００１２】
図１に示す実施例のベッド用マットレス１０は、中間層２０を有する三層構造からなるもので、中間層２０が、該中間層２０両側の層１１，１５間に複数の塊状物２５，２５，２５を少なくとも一部の塊状物２５，２５間にベッド用マットレス１０の側部１０１外方と通じる通気性隙間Ｓが残るように配置した層で構成されたものである。実施例では、三層の総厚みが４０〜２００ｍである。
【００１３】
前記塊状物２５は、図２からもわかるように、前記中間層２０両側の層１１，１５の内側面１２，１６に、接着剤等により接着、もしくはその他の適宜の方法により固定される。前記塊状物２５の配置としては、図１及び図２のように所定間隔をおいて整列させたものや、前記中間層２０内で部分的に塊状物２５の配置密度を異ならせて塊状物２５の数を増減させてもよい。特に、頭部や腰部を支持する部分のように大きな体圧の加わる部分については塊状物２５の数を増やして配置密度を高め、それに対して足や背中を支持する部分のようにそれほど体圧が加わらないその他の部分については、前記塊状物２５の数を減少させて配置密度を減らすのが好ましい。なお、前記塊状物２５の接着剤は、ゴム系、ウレタン系、ウレタン系ポリマー系、エマルジョン系等適宜のものが使用され、前記塊状物２５の材質に合わせて選択される。
【００１４】
さらに、図１及び図２の実施例では、前記中間層２０両側の層１１，１５の内側面１２，１６に前記塊状物２５を接着固定したものであるが、このほか、図３の断面図に示す他の例のマットレス１０Ａのように、両側の層１１Ａ，１５Ａもしくは片方の層１５Ａ（又は１１Ａ）の内側面１２Ａ，１６Ａに塊状物２５形状に応じた適宜凹部１３Ａ，１７Ａを設け、前記塊状物２５が前記凹部１３Ａ，１７Ａに嵌合して固定されるような構造としたり、さらに接着剤を併用してもよい。
【００１５】
また、前記塊状物２５がこの実施例のような立方体や図示しない他の多面体形状のように表面に角部を有する場合には、図４及び図５に示すように、塊状物２５に多様な傾きを付けた状態で当該塊状物２５を中間層２０Ｂ両側の層１１Ｂ，１５Ｂ間に配置することにより、前記塊状物２５表面の角部がマットレス１０Ｂ表面において指圧効果を生じさせるようにしてもよい。
【００１６】
前記塊状物２５は、ベッド用マットレス１０のサイズにもよるが、通気性と適度なクッション性（揺れ性）を満たすために高さが２０ｍｍ〜６０ｍｍであることが好ましい。図示の例の塊状物２５は、一辺４５ｍｍの立方体である。また、前記塊状物２５の一個あたりの平面視面積（マットレス１０上面からの投影面積とも言えるものであり、立方体あるいは円柱を直立させる場合の上面又は下面の面積に相当する）は３００〜７５００ｍｍ２であることが好ましく、それ以下では体圧を分散する効果に乏しく単位面積あたりにかかる体圧が非常に大きくなるため、使用者に底付き感を感じさせるおそれがあり、それ以上である場合には、クッション性が損なわれるおそれがある。さらに、前記塊状物２５の平面視面積の合計が中間層２０の平面視面積（この例では前記中間層２０の他側（下側）の層１５における内側面１６の面積に相当する）に対して３０〜９０％が好ましい。この平面視面積の合計が３０％よりも小さいと塊状物２５の高さなどにもよるが、クッション性が悪くなり、揺れ返しが大きくなったり、耐久性も悪くなる。逆に９０％を超えると、前記塊状物２５が密集した状態となり、通気性が低下し、クッション性も低下する。なお、前記塊状物２５の形状としては、図のようなもの他、円柱状・直方体もしくは球状のものなど、特に限定するものではない。
【００１７】
また、前記塊状物２５の材質は、特に限定されるものではなく、木、金属、プラスチック等適宜のものとされるが、中でも弾性体からなるものが好ましい。弾性体としては、ポリウレタンフォームやポリエチレンフォーム等の発泡体や、それらの発泡体の砕片をバインダーで結合したチップフォーム等が一般的である。さらに、前記塊状物２５が弾性体からなる場合には、当該塊状物２５の硬さは３０〜５００Ｎ（ＪＩＳ Ｋ ６４００）が、適度なクッション性や底付き感防止を得るために好適である。またさらには、前記塊状物２５が弾性体からなる場合には、密度が４０〜１５０ｋｇ／ｍ３（ＪＩＳ Ｋ ６４００）で、反発弾性が４０〜８０％（ＪＩＳ Ｋ ６４００）のものが、クッション性の点で好ましい。
【００１８】
前記中間層２０両側の層１１，１５は、ポリウレタンフォーム等の弾性体で構成されるが、少なくともベッド用マットレス１０の厚み方向Ｔに通気性を有する弾性体、例えば連通気泡を主体とする公知の軟質ポリウレタンフォームとされ、前記中間層２０の塊状物２５，２５間の通気用隙間Ｓを介してベッド用マットレス１０の厚み方向Ｔ外方と中間層２０の側部１０１外方間で通気性を有するようにされるのが好ましい。
【００１９】
さらに前記中間層２０の一側の層１１を構成する弾性体と他側の層１５を構成する弾性体とは、互いに通気性の異なるものが好ましい。通気性の違いは保温性の違いとなるため、季節や、好みに応じて該マットレスを裏返して使用するリバーシブルとすることができる。前記通気性を異ならせる簡単な方法として、前記中間層２０両側の層１１，１５を構成する弾性体として、連通気泡を主体とする軟質ポリウレタンフォームを用い、その軟質ポリウレタンフォームのセルサイズや密度を前記両側の層１１，１５で異ならせる方法を示す。この場合、セルサイズを小さくしたり、密度を高くしたりすれば通気性が低くなり、逆にセルサイズを大きくしたり、密度を低くしたりすれば通気性が高くなる。異なる通気性の例として、前記一側の層１１を通気性１００〜２００ｌ／ｍｉｎ（ＪＩＳ Ｋ ６４００）、他側の層１５を通気性５０〜８０ｌ／ｍｉｎ（ＪＩＳ Ｋ ６４００）とする場合を示す。
【００２０】
なお、前記実施例では三層構造のものを示したが、この発明は三層構造に限るものではなく、例えば中間層の少なくとも一側を二層以上としてもよい。さらに、前記塊状物は、形状、サイズ、物性等が同一のものである必要はなく、それらの異なるものを混在させて配置し中間層を構成してもよい。
【００２１】
【発明の効果】
以上図示し説明したように、この発明のベッド用マットレスによれば、複数の塊状物を少なくとも一部の塊状物間にベッド用マットレスの側部外方と通じる通気性隙間が残るように配置した層で中間層を構成したため、マットレス中間層に連通した隙間が形成されることとなって、熱ごもりを確実に解消することができるとともに、中間層を構成する塊状物によって底付き感を防止することもできる。しかも、塊状物間の隙間は、塊状物の間隔を調節することによって、通気性を容易にコントロールすることができる。
【００２２】
さらに、中間層両側の層を、厚み方向に通気性のある弾性体とすれば、使用時におけるマットレスの上下外方（厚み方向）と側部外方（長さ方向及び幅方向）との間で通気性を確保でき、三次元方向に対して良好な通気性が得られる。特に、ベッド用マットレスは、下面が床面等によって塞がれることが多いため、上下方向のみの通気性では、上面に位置する人体からの熱や汗等を良好に処理できないことが多いが、この発明では、上下方向（厚み方向）のみならず水平方向（長さ方向及び幅方向）にも通気性が確保されているため、マットレス上面の人体の熱や汗等に対し良好に作用することができる。
【００２３】
さらにまた、中間層の一側と他側とで通気性を異ならせれば、季節や好みに応じて裏表を使い分けることができ、快適な睡眠が得られるようになる。
また、塊状物を弾性体で構成すれば、ベッド用マットレスのクッション性を損ねることもない。
【００２４】
さらにまた、塊状物の平面視面積の合計が中間層の平面視面積に対して３０〜９０％となるようにすれば、より良好な通気性を確保することができ、また弾性体からなる塊状物の硬さを３０〜５００Ｎとすれば、クッション性もより良好となる。
【００２５】
さらにまた、塊状物の配置密度を中間層内で部分的に異ならせることによって、ベッド用マットレスの硬さを部分的に異ならせることができ、体圧に応じたものとすることもできる。
【図面の簡単な説明】
【図１】 この発明の一実施例に係るベッド用マットレスを示す部分切り欠き斜視図である。
【図２】 図１の２−２断面図である。
【図３】 塊状物の他の固定例を示す断面図である。
【図４】 ベッド用マットレスの他の例を示す部分切り欠き斜視図である。
【図５】 図４の５−５断面図である。
【符号の説明】
１０ ベッド用マットレス
１１ 中間層の一側の層
１５ 中間層の他側の層
２０ 中間層
２５ 塊状物[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bed mattress having a multilayer structure.
[0002]
[Prior art]
Conventional mattresses made of urethane foam, for example, have a rough surface formed by profiling the surface to avoid a comfortable touch and low back pain, etc. The thing which improved cushioning properties is proposed.
[0003]
However, the weight ratio of the head, chest, waist, and legs of the human body is naturally different, and the body pressure applied to the mattress is not uniform depending on each part, so uniform materials as before, lamination of simple materials, Alternatively, it is not easy to cope with a simple profile processed.
[0004]
In addition, the so-called hot dust in which sweat or heat during sleep stays in the mattress not only causes discomfort and poor sleeping comfort to the user, but is also unfavorable in terms of hygiene of the mattress. For this, for example, it has been proposed to form a plurality of heat dissipation holes in the mattress.
[0005]
However, the method of forming the holes for heat dissipation can only be formed with a small diameter of 10 to 15φ so that the rigidity for maintaining the shape of the mattress is not lost, and a sufficient heat dissipation effect can be obtained. There wasn't. In particular, a mattress material such as urethane foam is also used as a heat insulating material and has an effect of retaining heat, and thus heat dissipation is not easy.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and provides a novel mattress for a bed that has high air permeability that can eliminate heat turbulence, and that can disperse a user's body pressure to obtain a good feel. Is.
[0007]
[Means for Solving the Problems]
That is, according to the invention of claim 1, in the bed mattress of at least three layers having an intermediate layer, the intermediate layer communicates a plurality of lumps with at least a part of the lumps to the outside of the side of the bed mattress. consists of a fixed layer on the inner surface of the as ventilation gap remains arranged the intermediate layer both layers, with an intermediate layer on both sides of the layer made of an elastic material having air permeability in the thickness direction of at least bed mattresses Of the layers on both sides of the intermediate layer, the elastic body of one layer has a gas permeability of 100 to 200 l / min, and the elastic body of the other layer has a gas permeability of 50 to 80 l / min. It has air permeability between the outside in the thickness direction of the bed mattress and the outside of the side portion of the intermediate layer through the ventilation gap, and the sum of the plan view areas of the lump is relative to the plan view area of the intermediate layer 30-90% According to a bed for the mattress and butterflies.
[0008]
The invention of claim 2 is the bed mattress of at least three layers having an intermediate layer, wherein the intermediate layer communicates a plurality of lumps between at least some of the lumps and the outside of the side of the bed mattress. consists of a fixed layer on the inner surface of the as ventilation gap remains arranged the intermediate layer both layers, with an intermediate layer on both sides of the layer made of an elastic material having air permeability in the thickness direction of at least bed mattresses Of the layers on both sides of the intermediate layer, the elastic body of one layer has a gas permeability of 100 to 200 l / min, and the elastic body of the other layer has a gas permeability of 50 to 80 l / min. Through the air gap between the outer sides of the bed mattress in the thickness direction and the outer side of the intermediate layer, and the arrangement density of the objects is partially different in the intermediate layer. The part that supports the waist is massive Enhance arrangement density by increasing the number of, according to the bed mattress, characterized in that a reduced arrangement density by reducing the bulk the number to the portion supporting the foot and back.
[0009]
The invention of claim 3 is characterized in that, in claim 1 or 2, the lump is made of an elastic body .
[0010]
The invention of claim 4 is characterized in that, in claim 3, the lump has a hardness of 30 to 500N .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail with reference to the accompanying drawings.
1 is a partially cutaway perspective view showing a bed mattress according to one embodiment of the present invention, FIG. 2 is a sectional view taken along the line 2-2 in FIG. 1, and FIG. 3 is a sectional view showing another example of fixing a lump. 4 is a partially cutaway perspective view showing another example of a bed mattress, and FIG. 5 is a sectional view taken along line 5-5 of FIG.
[0012]
The bed mattress 10 of the embodiment shown in FIG. 1 has a three-layer structure having an intermediate layer 20, and the intermediate layer 20 has a plurality of lumps 25, 25 between the layers 11, 15 on both sides of the intermediate layer 20. , 25 are arranged in a layer in which an air-permeable gap S communicating with the outside of the side portion 101 of the bed mattress 10 remains between at least some of the lump 25, 25. In the example, the total thickness of the three layers is 40 to 200 m.
[0013]
As can be seen from FIG. 2, the lump 25 is adhered to the inner side surfaces 12 and 16 of the layers 11 and 15 on both sides of the intermediate layer 20 by an adhesive or the like, or fixed by other appropriate methods. As the arrangement of the lump 25, the lump 25 may be arranged at a predetermined interval as shown in FIGS. 1 and 2, or the lump 25 may be partially arranged in the intermediate layer 20 to have a different arrangement density. May be increased or decreased. In particular, in a portion where a large body pressure is applied, such as a portion supporting the head or waist, the arrangement density is increased by increasing the number of lumps 25, and on the other hand, the body pressure is so much like a portion supporting the foot or the back. As for other portions to which no is added, it is preferable to reduce the arrangement density by reducing the number of the lump 25. In addition, as the adhesive of the lump 25, a suitable material such as rubber, urethane, urethane polymer, and emulsion is used, and is selected according to the material of the lump 25.
[0014]
Further, in the embodiment shown in FIGS. 1 and 2, the lump 25 is bonded and fixed to the inner side surfaces 12 and 16 of the layers 11 and 15 on both sides of the intermediate layer 20, but in addition, the sectional view of FIG. As in the mattress 10A of the other example shown in FIG. 4, the inner surfaces 12A and 16A of the layers 11A and 15A on both sides or the one layer 15A (or 11A) are provided with recesses 13A and 17A as appropriate according to the shape of the lump 25 The lump 25 may be structured to be fitted and fixed to the recesses 13A and 17A, or an adhesive may be used in combination.
[0015]
In addition, when the lump 25 has corners on the surface, such as a cube as in this embodiment or other polyhedron shape not shown, the lump 25 can have various shapes as shown in FIGS. By placing the lump 25 between the layers 11B and 15B on both sides of the intermediate layer 20B in an inclined state, the corners of the lump 25 surface may cause acupressure effect on the surface of the mattress 10B. .
[0016]
The lump 25 is preferably 20 to 60 mm in height in order to satisfy air permeability and appropriate cushioning properties (swaying properties), although it depends on the size of the bed mattress 10. The lump 25 in the illustrated example is a cube having a side of 45 mm. Moreover, the planar view area per one piece of the lump 25 (which can be said to be a projected area from the upper surface of the mattress 10 and corresponds to the area of the upper surface or the lower surface when the cube or cylinder is erected) is 300 to 7500 mm 2 . It is preferable that the body pressure is less than that, and the body pressure per unit area is very large, and there is a risk of causing the user to feel a bottom, and if it is more than that, In addition, the cushioning property may be impaired. Furthermore, the sum of the planar view areas of the block 25 corresponds to the planar view area of the intermediate layer 20 (corresponding to the area of the inner surface 16 in the layer 15 on the other side (lower side) of the intermediate layer 20 in this example). 30 to 90% is preferable. If the total area in plan view is smaller than 30%, although depending on the height of the lump 25, the cushioning property is deteriorated, the shaking is increased, and the durability is also deteriorated. Conversely, if it exceeds 90%, the lump 25 is in a dense state, air permeability is lowered, and cushioning properties are also lowered. The shape of the lump 25 is not particularly limited, as shown in the figure, and may be a cylindrical shape, a rectangular parallelepiped, or a spherical shape.
[0017]
The material of the lump 25 is not particularly limited, and may be an appropriate material such as wood, metal, plastic, etc. Among them, an elastic body is preferable. As the elastic body, foams such as polyurethane foam and polyethylene foam, and chip foams in which fragments of the foams are bonded with a binder are generally used. Furthermore, when the lump 25 is made of an elastic body, the lump 25 has a hardness of 30 to 500 N (JIS K 6400), which is suitable for obtaining appropriate cushioning and preventing a feeling of bottoming. Furthermore, when the lump 25 is made of an elastic body, the one having a density of 40 to 150 kg / m 3 (JIS K 6400) and a rebound resilience of 40 to 80% (JIS K 6400) is cushioning. This is preferable.
[0018]
The layers 11 and 15 on both sides of the intermediate layer 20 are made of an elastic body such as polyurethane foam, but are known to be mainly composed of an elastic body having air permeability in at least the thickness direction T of the bed mattress 10, for example, open air bubbles. It is a flexible polyurethane foam, and air permeability is provided between the outside of the bed mattress 10 in the thickness direction T and the outside of the side portion 101 of the intermediate layer 20 through the ventilation gap S between the masses 25, 25 of the intermediate layer 20. It is preferable to have it.
[0019]
Further, the elastic body constituting the layer 11 on one side of the intermediate layer 20 and the elastic body constituting the layer 15 on the other side preferably have different air permeability. Since the difference in breathability becomes a difference in heat retention, the mattress can be turned over to be reversible according to the season and preference. As a simple method of making the air permeability different, a flexible polyurethane foam mainly composed of open cells is used as an elastic body constituting the layers 11 and 15 on both sides of the intermediate layer 20, and the cell size and density of the flexible polyurethane foam are determined. A method of making the layers 11 and 15 on both sides different will be described. In this case, if the cell size is reduced or the density is increased, the air permeability is lowered. Conversely, if the cell size is increased or the density is lowered, the air permeability is increased. As an example of different breathability, the case where the one-side layer 11 is breathable 100 to 200 l / min (JIS K 6400) and the other layer 15 is breathable 50 to 80 l / min (JIS K 6400) is shown. .
[0020]
In addition, although the thing of the three-layer structure was shown in the said Example, this invention is not restricted to a three-layer structure, For example, it is good also considering at least one side of an intermediate | middle layer as two or more layers. Furthermore, the lump need not be the same in shape, size, physical properties, etc., and the different layers may be mixed to form an intermediate layer.
[0021]
【The invention's effect】
As illustrated and described above, according to the bed mattress of the present invention, the plurality of lumps are arranged so that at least a part of the lumps is left with a breathable gap communicating with the outside of the side of the bed mattress. Since the intermediate layer is composed of layers, a gap communicating with the mattress intermediate layer is formed, so that heat build-up can be surely eliminated and the feeling of bottoming is prevented by the lump constituting the intermediate layer. You can also In addition, the air permeability can be easily controlled for the gaps between the lumps by adjusting the interval between the lumps.
[0022]
Furthermore, if the layers on both sides of the intermediate layer are made of an elastic body that is breathable in the thickness direction, the mattress between the upper and lower outer sides (thickness direction) and the lateral outer sides (length direction and width direction) in use. With this, air permeability can be secured, and good air permeability can be obtained in the three-dimensional direction. In particular, the bed mattress is often clogged with the floor or the like on the bottom surface, so the air permeability only in the vertical direction often cannot handle heat and sweat from the human body located on the top surface well. In this invention, air permeability is ensured not only in the vertical direction (thickness direction) but also in the horizontal direction (length direction and width direction), so that it acts well on the heat and sweat of the human body on the top surface of the mattress. Can do.
[0023]
Furthermore, if the air permeability is different between the one side and the other side of the intermediate layer, the front and back can be used properly according to the season and preference, and comfortable sleep can be obtained.
Further, if the lump is made of an elastic body, the cushioning property of the bed mattress is not impaired.
[0024]
Furthermore, if the sum of the plan view areas of the lump is 30 to 90% with respect to the plan view area of the intermediate layer, better air permeability can be secured, and the lump made of an elastic body can be secured. If the hardness of an object shall be 30-500N, cushioning property will become more favorable.
[0025]
Furthermore, the hardness of the bed mattress can be partially varied by partially varying the arrangement density of the lump in the intermediate layer, and can also be in accordance with the body pressure.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing a bed mattress according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line 2-2 in FIG.
FIG. 3 is a cross-sectional view showing another example of fixing a lump.
FIG. 4 is a partially cutaway perspective view showing another example of a bed mattress.
5 is a cross-sectional view taken along the line 5-5 in FIG.
[Explanation of symbols]
10 Bed mattress 11 Layer on one side of the intermediate layer 15 Layer on the other side of the intermediate layer 20 Intermediate layer 25 Mass

Claims (4)

中間層を有する少なくとも三層のベッド用マットレスにおいて、前記中間層が、複数の塊状物を少なくとも一部の塊状物間にベッド用マットレスの側部外方と通じる通気用隙間が残るようにして配置し前記中間層両側の層の内側面に固定した層で構成され、
中間層両側の層が少なくともベッド用マットレスの厚み方向に通気性を有する弾性体からなると共に、前記中間層両側の層のうち一側の層の弾性体は通気性１００〜２００ｌ／ｍｉｎ、他側の層の弾性体は通気性５０〜８０ｌ／ｍｉｎからなり、前記中間層の塊状物間の通気用隙間を介してベッド用マットレスの厚み方向両側外方と中間層の側部外方間で通気性を有し、
塊状物の平面視面積の合計が中間層の平面視面積に対して３０〜９０％であることを特徴とするベッド用マットレス。In the bed mattress of at least three layers having an intermediate layer, the intermediate layer is arranged so that a plurality of lumps are left between at least some of the lumps and a ventilation gap communicating with the outside of the side of the bed mattress. And composed of layers fixed to the inner surface of the layers on both sides of the intermediate layer,
The layers on both sides of the intermediate layer are made of an elastic body having air permeability at least in the thickness direction of the bed mattress, and the elastic body on one side of the layers on both sides of the intermediate layer has an air permeability of 100 to 200 l / min, the other side The elastic body of this layer has a gas permeability of 50 to 80 l / min , and air flows between the outer sides of the bed mattress in the thickness direction and the outer sides of the intermediate layer through the air gaps between the masses of the intermediate layer. Have
The bed mattress characterized in that the sum of the planar view areas of the lump is 30 to 90% with respect to the planar view area of the intermediate layer. 中間層を有する少なくとも三層のベッド用マットレスにおいて、前記中間層が、複数の塊状物を少なくとも一部の塊状物間にベッド用マットレスの側部外方と通じる通気用隙間が残るようにして配置し前記中間層両側の層の内側面に固定した層で構成され、
中間層両側の層が少なくともベッド用マットレスの厚み方向に通気性を有する弾性体からなると共に、前記中間層両側の層のうち一側の層の弾性体は通気性１００〜２００ｌ／ｍｉｎ、他側の層の弾性体は通気性５０〜８０ｌ／ｍｉｎからなり、前記中間層の塊状物間の通気用隙間を介してベッド用マットレスの厚み方向両側外方と中間層の側部外方間で通気性を有し、
塊状物の配置密度が中間層内で部分的に異なり、頭部や腰部を支持する部分については塊状物の数を増やして配置密度を高め、足や背中を支持する部分については塊状物の数を減少させて配置密度を減らしたことを特徴とするベッド用マットレス。In the bed mattress of at least three layers having an intermediate layer, the intermediate layer is arranged so that a plurality of lumps are left between at least some of the lumps and a ventilation gap communicating with the outside of the side of the bed mattress. And composed of layers fixed to the inner surface of the layers on both sides of the intermediate layer,
The layers on both sides of the intermediate layer are made of an elastic body having air permeability at least in the thickness direction of the bed mattress, and the elastic body on one side of the layers on both sides of the intermediate layer has an air permeability of 100 to 200 l / min, the other side The elastic body of this layer has a gas permeability of 50 to 80 l / min , and air flows between the outer sides of the bed mattress in the thickness direction and the outer sides of the intermediate layer through the air gaps between the masses of the intermediate layer. Have
The arrangement density of the lump is partially different in the middle layer, increasing the arrangement density by increasing the number of lump for the part supporting the head and waist, and decreasing the number of lump for the part supporting the foot and back. Bed mattress characterized by reduced placement density. 塊状物が弾性体からなることを特徴とする請求項１または２に記載のベッド用マットレス。The bed mattress according to claim 1 or 2, wherein the lump is made of an elastic body . 塊状物の硬さが３０〜５００Ｎであることを特徴とする請求項３に記載のベッド用マットレス。The bed mattress according to claim 3 , wherein the lump has a hardness of 30 to 500N .
JP2001350094A 2001-11-15 2001-11-15 Bed mattress Expired - Lifetime JP3946495B2 (en)

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JP2006014819A (en) * 2004-06-30 2006-01-19 Inoac Corp Elastic mattress
JP3835701B2 (en) * 2005-02-18 2006-10-18 アダプトゲン製薬株式会社 Mattress and bed
MD3586C2 (en) * 2006-12-22 2008-12-31 Василий АРАБАДЖИ Orthopedic mattress for bed
MD3951C2 (en) * 2009-02-11 2010-03-31 Василий АРАБАДЖИ Orthopedic mattress for bed
JP6228463B2 (en) * 2014-01-06 2017-11-08 株式会社イノアックリビング mattress
JP7300808B2 (en) * 2017-06-30 2023-06-30 株式会社イノアックコーポレーション Cushion body and manufacturing method thereof
CN110200445A (en) * 2019-06-26 2019-09-06 东莞市慕思寝室用品有限公司 A kind of mattress
KR102544476B1 (en) * 2021-08-02 2023-06-15 황근하 Mattress Having Human Body Load Distribution Support Structure And Ventilation Maximization Structure

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