JP2015159951A - mattress - Google Patents

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JP2015159951A
JP2015159951A JP2014036714A JP2014036714A JP2015159951A JP 2015159951 A JP2015159951 A JP 2015159951A JP 2014036714 A JP2014036714 A JP 2014036714A JP 2014036714 A JP2014036714 A JP 2014036714A JP 2015159951 A JP2015159951 A JP 2015159951A
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middle layer
foam
layer part
mattress
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JP6116498B2 (en
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山倉 賢一
Kenichi Yamakura
賢一 山倉
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SHOWA NISHIKAWA CO Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a mattress whose middle layer part is hard to be crushed even if hollow parts for ventilation are made therein, so that it can evenly support a human body, and whose middle layer part having the hollow parts can be easily manufactured.SOLUTION: A mattress 1 is structured with three layers composed of an upper layer part 11, a middle layer part 12 and a lower layer part 13. In the upper layer part 11 and the middle layer part 12, there is put through an expanded material each as a base between a pair of rolls oppositely arranged. Then, a profile processing is performed in which each expanded material is cut by a cutter in a state transformed in a wavy manner with a plurality of projections provided on the outer peripheral face of both rolls. As a result, on the upper face side of the middle layer part 12, there are also formed projected parts and recessed parts 12b similarly to the upper face side of the upper layer part 11. Then, the projected parts of the middle layer part 12 are subsequently cut horizontally to form a truncated projected parts 12a' of a quadrangular pyramid shape, with the upper face side of the middle layer part 12 and the bottom face of the upper layer part 11 stuck together, forming hollow parts 12c between the upper face side of the middle layer part 12 and the bottom face of the upper layer part 11.

Description

この発明は、弾力性を有する発泡体を積層して構成されるマットレスに関するものである。   The present invention relates to a mattress formed by laminating foams having elasticity.

弾力性を有する発泡体を積層して構成されるマットレスとして、例えば、略矩形状の下層部と、下層部上に形成され、中層部上を略格子状に延びる通気用の空洞部(溝部)を有する中層部と、中層部上に形成され、複数の突起部を有する上層部とからなる三層構造としたものが提案されている(特許文献1,2参照)。   As a mattress configured by laminating elastic foams, for example, a substantially rectangular lower layer portion and a ventilation cavity portion (groove portion) formed on the lower layer portion and extending in a substantially lattice shape on the middle layer portion There has been proposed a three-layer structure including a middle layer portion having a plurality of protrusions and an upper layer portion formed on the middle layer portion (see Patent Documents 1 and 2).

特開2002−159375号公報JP 2002-159375 A 特開2002−306825号公報JP 2002-306825 A

しかし、上述の特許文献1,2に記載されたマットレスでは、中層部に通気用の空洞部を格子状に形成しているため、通気性は確保されているものの、中層部の空洞部は上層部または下層部の空洞部まで連通して深い溝部または凹部を形成している。そのため、このマットレスに人間が横たわった場合、その体重によりその空洞部近傍が変形して潰れ易く、人体を均等に支持できないという問題がある。   However, in the mattresses described in Patent Documents 1 and 2 described above, since the air cavities are formed in a lattice shape in the middle layer portion, the air permeability is ensured, but the middle layer cavities are the upper layer. A deep groove or recess is formed in communication with the cavity of the part or lower layer. Therefore, when a person lies on this mattress, there is a problem that the vicinity of the hollow portion is easily deformed and crushed due to its weight, and the human body cannot be supported uniformly.

また、上述の特許文献1,2に記載されたマットレスでは、中層部に形成した空洞部は、断面が円形状であり、上層部または下層部との境界における開口部分の幅が狭くなっているため、中層部に凸部および凹部を形成することが困難であるという問題もある。   Further, in the mattress described in Patent Documents 1 and 2 described above, the hollow portion formed in the middle layer portion has a circular cross section, and the width of the opening portion at the boundary with the upper layer portion or the lower layer portion is narrow. Therefore, there is also a problem that it is difficult to form convex portions and concave portions in the middle layer portion.

そこで、本発明は、このような問題点を解決するためになされたもので、中層部に通気用の空洞部を設けても中層部が潰れ難く人体を均等に支持でき、かつ、空洞部を有する中層部を容易に製造することができるマットレスを提供することを目的とする。   Therefore, the present invention has been made to solve such problems, and even if a hollow portion for ventilation is provided in the middle layer portion, the middle layer portion is hardly crushed and can support the human body evenly. An object of the present invention is to provide a mattress that can easily produce an intermediate layer portion.

前記課題を解決するため、請求項1の発明に係るマットレスは、
弾力性を有する下層部用発泡体で構成され、床側となる下層部と、
弾力性を有する中層部用発泡体で構成され、前記下層部の上に設けられる中層部と、
弾力性を有する上層部用発泡体で構成され、使用者の体を支持する上面側に複数の凸部および凹部を有する上層部とを備えたマットレスにおいて、
前記上層部は、
対向配置された一対のロールの間に当該上層部の元になる前記上層部用発泡体を通して、両ロールの外周面それぞれに突設した複数の突起によって前記上層部用発泡体を波打つように変形させた状態でカッターにより切断するプロファイル加工を行うことで、その切断面に凸部および凹部を形成し、
前記中層部は、
対向配置された一対のロールの間に当該中層部の元になる前記中層部用発泡体を通して、両ロールの外周面それぞれに突設した複数の突起によって前記中層部用発泡体を波打つように変形させた状態でカッターにより切断するプロファイル加工を行うことで、その切断面に凸部および凹部を形成することを特徴とする。
また、請求項2に係るマットレスは、請求項1に記載のマットレスにおいて、
前記上層部と前記中層部とは、同一のプロファイル加工機械のカッターによりプロファイル加工を行うことにより、それらの元になる前記上層部用発泡体と前記中層部用発泡体の切断面に形成した凸部および凹部は同一形状であることを特徴とする。
また、請求項3の発明に係るマットレスは、請求項1または請求項2に記載のマットレスにおいて、
前記中層部は、
対向配置された一対のロールの間に、前記下層部の元になる2枚の前記下層部用発泡体の間に前記中層部用発泡体を挟んで接着した3層構造の発泡体を通し、両ロールの外周面それぞれに突設した複数の突起によってその3層構造の発泡体を波打つように変形させた状態でカッターにより少なくとも中間層の前記下層部用発泡体を切断するプロファイル加工を行うことで、切断面に凸部および凹部を形成することを特徴とする。
また、請求項4の発明に係るマットレスは、請求項1〜請求項3のいずれか一の請求項に記載のマットレスにおいて、
前記中層部は、
前記プロファイル加工により切断面に凸部および凹部が現れた中層部用発泡体を得て、その後、その中層部用発泡体の表面側に形成された複数の凸部の先端部を所定の高さで水平にカットすることにより製造することを特徴とする。
また、請求項5の発明に係るマットレスは、請求項4に記載のマットレスにおいて、
前記中層部は、
前記プロファイル加工により切断面に凸部および凹部が現れた中層部用発泡体を得て、その後、その中層部用発泡体の表面側に形成された複数の凸部の先端部を所定の高さで水平にカットする際、カットにより残った切頭凸部の切断面が隣接する他の突起部の切断面と水平に連続しないようにカットして、
前記中層部の切頭凸部の切断面を前記上層部の底面に貼り付けた際、前記中層部にプロファイル加工により形成された各凹部が隣接する他の凹部と連通部を介して連通するように形成したことを特徴とする。
また、請求項6の発明に係るマットレスは、請求項4に記載のマットレスにおいて、
前記中層部は、
前記プロファイル加工により切断面に凸部および凹部が現れた中層部用発泡体を得て、その後、その中層部用発泡体の表面側に形成された複数の凸部の先端部を所定の高さで水平にカットする際、カットにより残った切頭凸部の切断面が隣接する他の突起部の切断面と水平に連続するようにカットして、
前記中層部の切頭凸部の切断面を前記上層部の底面に貼り付けた際、前記中層部にプロファイル加工により形成された各凹部が隣接する他の凹部と連続せず独立した空洞部を形成するようにしたことを特徴とする。
また、請求項7の発明に係るマットレスは、請求項1〜請求項5のいずれか一の請求項に記載のマットレスにおいて、
前記中層部の上側面と、前記上層部の底面とを貼り付ける際、前記中層部にプロファイル加工により形成された各凹部と、前記上層部にプロファイル加工により形成された各凹部の中心位置がなるべく一致するように貼り付けることを特徴とする。
In order to solve the above problem, a mattress according to the invention of claim 1 is
It is composed of a foam for the lower layer part having elasticity, and the lower layer part which becomes the floor side,
Consists of a foam for the middle layer part having elasticity, the middle layer part provided on the lower layer part,
In a mattress comprising a foam for an upper layer part having elasticity and having an upper layer part having a plurality of convex parts and concave parts on the upper surface side for supporting the user's body,
The upper layer part is
The foam for the upper layer part is deformed so as to be waved by a plurality of projections projecting on the outer peripheral surfaces of both rolls through the foam for the upper layer part between the pair of opposed rolls. By performing profile processing that cuts with a cutter in the state of being made, a convex part and a concave part are formed on the cut surface,
The middle layer is
The foam for the middle layer part is deformed so as to be waved by a plurality of protrusions projecting from the outer peripheral surfaces of both rolls through the foam for the middle layer part that is the origin of the middle layer part between a pair of opposed rolls. Protruding portions and recessed portions are formed on the cut surface by performing profile processing that is cut by a cutter in the state of being made.
A mattress according to claim 2 is the mattress according to claim 1,
The upper layer part and the middle layer part are formed on the cut surfaces of the foam for the upper layer part and the foam for the middle layer part by performing profile processing with a cutter of the same profile processing machine. The part and the concave part have the same shape.
Further, the mattress according to the invention of claim 3 is the mattress according to claim 1 or claim 2,
The middle layer is
Between a pair of rolls arranged opposite to each other, a foam having a three-layer structure in which the foam for the middle layer part is sandwiched between the two foams for the lower part that are the basis of the lower layer part is passed, Perform profile processing to cut at least the lower layer foam of the intermediate layer with a cutter in a state in which the foam of the three-layer structure is deformed so as to be waved by a plurality of protrusions protruding from the outer peripheral surfaces of both rolls. Thus, a convex portion and a concave portion are formed on the cut surface.
The mattress according to the invention of claim 4 is the mattress according to any one of claims 1 to 3,
The middle layer is
By obtaining the foam for the middle layer part in which the convex part and the concave part appear on the cut surface by the profile processing, and then, the tip parts of the plurality of convex parts formed on the surface side of the foam for the middle layer part have a predetermined height. It is manufactured by cutting horizontally with
The mattress according to the invention of claim 5 is the mattress according to claim 4,
The middle layer is
By obtaining the foam for the middle layer part in which the convex part and the concave part appear on the cut surface by the profile processing, and then, the tip parts of the plurality of convex parts formed on the surface side of the foam for the middle layer part have a predetermined height. When cutting horizontally with, cut so that the cutting surface of the truncated convex part remaining by cutting does not continue horizontally with the cutting surface of other adjacent protrusions,
When the cut surface of the truncated convex portion of the middle layer portion is attached to the bottom surface of the upper layer portion, each concave portion formed by profile processing in the middle layer portion communicates with another adjacent concave portion via a communicating portion. It is characterized by being formed.
The mattress according to the invention of claim 6 is the mattress according to claim 4,
The middle layer is
By obtaining the foam for the middle layer part in which the convex part and the concave part appear on the cut surface by the profile processing, and then, the tip parts of the plurality of convex parts formed on the surface side of the foam for the middle layer part have a predetermined height. When cutting horizontally with, cut so that the cutting surface of the truncated convex part remaining by cutting is continuous with the cutting surface of other adjacent protrusions,
When the cut surface of the truncated convex portion of the middle layer portion is attached to the bottom surface of the upper layer portion, each of the concave portions formed by profile processing in the middle layer portion is not continuous with other adjacent concave portions, and independent hollow portions are formed. It is characterized by being formed.
Moreover, the mattress according to the invention of claim 7 is the mattress according to any one of claims 1 to 5,
When affixing the upper side surface of the middle layer portion and the bottom surface of the upper layer portion, each concave portion formed by profile processing in the middle layer portion and the center position of each concave portion formed by profile processing in the upper layer portion should be as much as possible It is characterized by being pasted so as to match.

本発明に係るマットレスによれば、上層部および中層部は、対向配置された一対のロールの間それぞれにの元になる発泡体を通し、両ロールの外周面それぞれに突設した複数の突起により各発泡体を波打つように変形させた状態でカッターにより切断するプロファイル加工を行うことにより製造して、中層部の上面側を上層部の底面に貼り付けた。そのため、中層部には、プロファイル加工により凹凸形状に形成された表面と上層部の底面とに囲まれた空洞部が形成され、特許文献1,2に記載された従来のマットレスとは異なり、中層部の空洞部が上層部または下層部の凹部まで開口した深い凹部(溝部)を構成しないので、中層部に通気用の空洞部を設けても中層部が潰れ難くなり、マットレス全体として人体を均等に支持することができる。
また、中層部に設ける凸部および凹部は、上層部に形成した凸部および凹部と同様に対向配置された一対のロールの間に中層部用発泡体を通し、両ロールの外周面それぞれに突設した複数の突起により各発泡体を波打つように変形させた状態でカッターにより切断するプロファイル加工を行うことにより製造したため、上層部に形成した凸部および凹部と同様に中層部に凸部および凹部を形成することが可能となり、空洞部を有する中層部を容易に製造することができる。
According to the mattress according to the present invention, the upper layer portion and the middle layer portion are formed by a plurality of protrusions protruding from the outer peripheral surfaces of both rolls through the foam that is the basis between the pair of opposed rolls. Each foam was manufactured by performing profile processing by cutting with a cutter in a state of being deformed so as to wave, and the upper surface side of the middle layer portion was attached to the bottom surface of the upper layer portion. Therefore, in the middle layer portion, a hollow portion surrounded by the surface formed in a concavo-convex shape by profile processing and the bottom surface of the upper layer portion is formed. Unlike the conventional mattress described in Patent Documents 1 and 2, the middle layer Since the hollow part of the part does not constitute a deep concave part (groove part) that opens to the concave part of the upper layer part or the lower layer part, even if a ventilating cavity part is provided in the middle layer part, the middle layer part is not easily crushed, and the human body is evenly distributed as a whole mattress Can be supported.
Further, the convex portion and the concave portion provided in the middle layer portion pass through the foam for the middle layer portion between a pair of rolls arranged opposite to each other in the same manner as the convex portion and the concave portion formed in the upper layer portion, and project to the outer peripheral surfaces of both rolls. Protrusions and recesses in the middle layer part as well as the protrusions and recesses formed in the upper layer part because it was manufactured by performing profile processing by cutting with a cutter in the state that each foam was deformed so as to wave with the plurality of protrusions provided Can be formed, and an intermediate layer portion having a hollow portion can be easily manufactured.

本発明に係る実施形態1のマットレスの一部分を示す斜視図である。It is a perspective view which shows a part of mattress of Embodiment 1 which concerns on this invention. 本発明に係る実施形態1のマットレスの各層を分解した構造を示す分解斜視図である。It is a disassembled perspective view which shows the structure which decomposed | disassembled each layer of the mattress of Embodiment 1 which concerns on this invention. 本発明に係る実施形態1のマットレスにおける断面構成を示す断面図である。It is sectional drawing which shows the cross-sectional structure in the mattress of Embodiment 1 which concerns on this invention. (a),(b)それぞれ本発明に係る実施形態1のマットレスの上層部の表面に凸部および凹部を形成する製造過程の一例を示す図である。(A), (b) is a figure which shows an example of the manufacturing process which forms a convex part and a recessed part in the surface of the upper layer part of the mattress of Embodiment 1 which respectively concerns on this invention. (a)〜(c)それぞれ本発明に係る実施形態1のマットレスの中層部の表面に凸部および凹部を形成する製造過程の一例を示す図である。It is a figure which shows an example of the manufacturing process which forms a convex part and a recessed part in the surface of the middle layer part of the mattress of Embodiment 1 which respectively concerns on (a)-(c) this invention. (a),(b)それぞれ本発明に係る実施形態1のマットレスの断面構成の他の例を示す断面図である。(A), (b) is sectional drawing which shows the other example of the cross-sectional structure of the mattress of Embodiment 1 which concerns on this invention, respectively. 本発明に係る実施形態2のマットレスにおける断面構成を示す断面図である。It is sectional drawing which shows the cross-sectional structure in the mattress of Embodiment 2 which concerns on this invention. 本発明に係る実施形態3のマットレスにおける断面構成を示す断面図である。It is sectional drawing which shows the cross-sectional structure in the mattress of Embodiment 3 which concerns on this invention. (a),(b)それぞれ本発明に係る実施形態3のマットレスの断面構成の他の例を示す断面図である。(A), (b) is sectional drawing which shows the other example of the cross-sectional structure of the mattress of Embodiment 3 which concerns on this invention, respectively.

次に、本発明に係るマットレスにつき、好適な実施形態1〜3を挙げて、添付図面を参照して以下に説明する。   Next, preferred embodiments 1 to 3 of the mattress according to the present invention will be described below with reference to the accompanying drawings.

実施形態1.
図1〜図3に示すように、実施形態1のマットレス1は、弾力性を有する発泡体で構成された上層部11、中層部12および下層部13が厚み方向に重なった3層構造で構成されており、平面視で長方形に形成されている。そのため、マットレス1は、上層部11、中層部12および下層部13の積層方向である厚み方向に弾性変形可能に構成されると共に、ある程度曲げることができる可撓性を有している。マットレス1は、接着剤や、溶着や、一体成形で層を構成することによる発泡体自体の接着力などによって隣り合う層同士が接合される。なお、マットレス1は、布地からなるカバーで表側を覆ったり、当該マットレス1の弾力性等の特性を阻害しない別の敷物を載置したり、そのままの状態など、各種形態で利用に供される。以下に説明する上層部11と、中層部12と、下層部13の特性値は、特に断りのない限り、硬さをJIS K 6400−2に基づく試験方法による値で、密度をJIS K 7222に基づく試験方法による値で示す。
Embodiment 1. FIG.
As shown in FIGS. 1 to 3, the mattress 1 according to the first embodiment has a three-layer structure in which an upper layer portion 11, a middle layer portion 12, and a lower layer portion 13 made of a foam having elasticity are overlapped in the thickness direction. It is formed in a rectangle in plan view. Therefore, the mattress 1 is configured to be elastically deformable in the thickness direction, which is the stacking direction of the upper layer portion 11, the middle layer portion 12, and the lower layer portion 13, and has flexibility that can be bent to some extent. In the mattress 1, adjacent layers are bonded to each other by an adhesive, welding, adhesive force of the foam itself by forming the layers by integral molding, or the like. The mattress 1 is used in various forms, such as covering the front side with a cover made of fabric, placing another rug that does not impair the elasticity and other characteristics of the mattress 1, or as it is. . Unless otherwise specified, the characteristic values of the upper layer part 11, the middle layer part 12, and the lower layer part 13 described below are hardness values according to a test method based on JIS K 6400-2, and the density is JIS K 7222. Indicated by the value of the test method based on.

(上層部11の構成)
上層部11は、軟質ウレタンフォームやポリオレフィン系フォーム等の発泡体で構成され、発泡体の中でも軟質ウレタンフォームが好適である。なお、上層部11を構成する発泡体としては、気泡同士が独立している独立気泡構造や、気泡同士が連続している連続気泡構造のものを用いることができるが、連続気泡構造の発泡体で構成するのがよい。
(Configuration of upper layer part 11)
The upper layer part 11 is comprised with foams, such as a flexible urethane foam and a polyolefin-type foam, and a flexible urethane foam is suitable among foams. In addition, as a foam which comprises the upper layer part 11, the thing of the closed-cell structure where bubbles are independent, or the open-cell structure where bubbles are continuing can be used, However, The foam of an open-cell structure It is good to comprise.

上層部11は、中層部12側に臨む下面が平坦に形成された長方形の板状体であり、使用者への当たりを柔らかくすると共に、このマットレス1にかかる荷重を分散させる役割を主に担っている。   The upper layer portion 11 is a rectangular plate-like body whose lower surface facing the middle layer portion 12 is formed flat, and mainly plays a role of softening the hitting to the user and dispersing the load applied to the mattress 1. ing.

上層部11は、その硬さが家庭用品品質表示法に基づく表示様式で「かため」、「ふつう」および「やわらかめ」の何れの区分であっても用いることができ、実施形態1では、120N〜200Nの範囲の硬さにある発泡体を用いている。ここで、マットレス1は、下層部13を上層部11より硬く設定するのが望ましい。また、下層部13の反発弾性よりも上層部11の反発弾性を高く設定するのが望ましい。また、実施形態1の上層部11は、密度が例えば35kg/m〜45g/mの範囲にある発泡体を用いている。 The upper layer part 11 can be used in any of the categories “hard”, “normal” and “soft” in the display style based on the household goods quality display method. A foam having a hardness in the range of 120N to 200N is used. Here, the mattress 1 desirably sets the lower layer portion 13 to be harder than the upper layer portion 11. Moreover, it is desirable to set the rebound resilience of the upper layer portion 11 higher than the rebound resilience of the lower layer portion 13. Further, the upper portion 11 of the first embodiment uses a foam in the density range of, for example, 35kg / m 3 ~45g / m 3 .

上層部11は、その厚みを例えば40mm程度の高さの軟質ウレタンフォームを後述するプロファイル加工(凹凸加工)を施すことにより、図1〜図3に示すように、使用者が乗る側となる上面側に複数の凸部11aおよび凹部11bを形成している。   The upper layer portion 11 has an upper surface on the side on which the user rides as shown in FIGS. 1 to 3 by applying profile processing (unevenness processing), which will be described later, to a flexible urethane foam having a thickness of about 40 mm, for example. A plurality of convex portions 11a and concave portions 11b are formed on the side.

具体的には、上層部11の凹凸形状は、水平方向縦横に凸部11aが一定間隔で配列されると共に、縦横に隣り合う4つの凸部11aの間に凹部11bが設けられ、横方向に並ぶ凸部11aの列と、この列に対して縦方向に隣り合う列の凸部11aをずらして、凸部11aと凹部11bとが平面視(上から見た場合に)、いわゆるチェッカー模様(市松模様)に配置される。   Specifically, the concave-convex shape of the upper layer portion 11 is such that the convex portions 11a are arranged at regular intervals in the horizontal and vertical directions, and the concave portions 11b are provided between the four convex portions 11a adjacent in the vertical and horizontal directions. By shifting the row of the protruding portions 11a and the protruding portions 11a of the row adjacent to the row in the vertical direction, the protruding portions 11a and the recessed portions 11b are viewed in plan (when viewed from above), so-called checker pattern ( (Checkered pattern).

ここで、凸部11aは、突出端(上)側に向かうにつれて先細りになるよう形成されている。また、凹部11bは、閉塞端(底)側に向かうにつれて狭くなるように形成されており、凹部11bは凸部11aの外形形状とほぼ同一形状で開口している。   Here, the convex part 11a is formed so that it may taper off toward the protrusion end (upper) side. Moreover, the recessed part 11b is formed so that it may become narrow as it goes to the closed end (bottom) side, and the recessed part 11b is opened in the substantially same shape as the external shape of the convex part 11a.

(上層部11のプロファイル加工方法)
次に、上層部11のプロファイル加工方法について説明する。
(Profile processing method of upper layer part 11)
Next, the profile processing method of the upper layer part 11 is demonstrated.

図4(a),(b)は、それぞれ、実施形態1のマットレス1の上層部11の表面に凸部11aおよび凹部11bを形成する製造過程の一例を示す図である。   FIGS. 4A and 4B are diagrams illustrating an example of a manufacturing process in which the convex portions 11a and the concave portions 11b are formed on the surface of the upper layer portion 11 of the mattress 1 of the first embodiment.

図4(a)に示すように、上層部11は、対向配置された一対のロール2,2の間に上層部の元になる上層部用発泡体10を通して、両ロール2,2の外周面それぞれに突設された複数の突起21,21,・・・によって上層部用発泡体10を波打つように変形させた状態でカッター52により切断するプロファイル加工(凹凸加工)を行うことで、その切頭凸部切断面12a1’に凸部11aおよび凹部11bが現れた2枚の上層部11を製造する。   As shown in FIG. 4 (a), the upper layer portion 11 passes between the pair of rolls 2 and 2 arranged opposite to each other, and passes through the upper layer portion foam 10 serving as the base of the upper layer portion, so that the outer peripheral surfaces of both rolls 2 and 2 By performing profile processing (unevenness processing) by cutting with the cutter 52 in a state in which the foam 10 for the upper layer portion is deformed so as to be waved by a plurality of protrusions 21, 21,. The two upper layer parts 11 in which the convex part 11a and the concave part 11b appear on the head convex part cutting surface 12a1 ′ are manufactured.

図4(b)は、図4(a)に示すようなプロファイル加工により上層部用発泡体10から製造した切頭凸部切断面12a1’側に凸部11aおよび凹部11bが現れた上層部11の断面構造を示している。図4(a)に示すようなプロファイル加工によって、図4(b)に示すような断面構造を有する上層部11が2枚製造できる。   FIG. 4B shows an upper layer part 11 in which convex parts 11a and concave parts 11b appear on the truncated convex part cutting surface 12a1 ′ side produced from the foam 10 for the upper layer part by profile processing as shown in FIG. 4A. The cross-sectional structure of is shown. Two upper layer portions 11 having a cross-sectional structure as shown in FIG. 4B can be manufactured by profile processing as shown in FIG.

(中層部12の構成)
中層部12は、軟質ウレタンフォームやポリオレフィン系フォーム等の発泡体で構成され、発泡体の中でも軟質ウレタンフォームが好適である。ここで、中層部12を構成する発泡体としては、気泡を区切る膜が除去されて、樹脂骨格だけが残された除膜処理された連続気泡構造が用いられている。すなわち、中層部12は、上層部11や下層部13よりも気泡の系が大きく通気性が高いフィルターフォーム等と俗称される発泡体で構成されており、中層部12をなす発泡体を通って空気が上下方向および水平方向に流通可能になっている。
(Configuration of middle layer portion 12)
The middle layer portion 12 is made of a foam such as a flexible urethane foam or a polyolefin-based foam, and a flexible urethane foam is preferable among the foams. Here, as the foam constituting the middle layer portion 12, an open cell structure is used in which the film separating the bubbles is removed, and only the resin skeleton is left, and the film removal process is performed. That is, the middle layer portion 12 is formed of a foam commonly called a filter foam having a larger bubble system and higher air permeability than the upper layer portion 11 and the lower layer portion 13, and passes through the foam forming the middle layer portion 12. Air can flow vertically and horizontally.

また、中層部12は、例えば、密度が約30kg/m〜40kg/mの範囲にある上層部11よりも低密度で、かつ、240N〜330Nの範囲の硬さである上層部11よりも高硬度の発泡体を用いる。ただし、中層部12をなす発泡体は、上層部11および下層部13が発現する弾力性等の特性を妨げない硬さや反発弾性であれば特に限定されず、上層部11よりも低密度で柔らかく、反発弾性が低い発泡体を使用しても良い。そして、中層部12は、その厚みを、例えば、20mmに設定しているが、10mm〜40mmとしても良い。 Also, the middle layer 12, for example, low density than the upper layer portion 11 having a density in the range of from about 30kg / m 3 ~40kg / m 3 , and from the upper portion 11 is a hardness in the range of 240N~330N Also use a foam with high hardness. However, the foam forming the middle layer portion 12 is not particularly limited as long as it has hardness or rebound resilience that does not hinder the properties such as elasticity exhibited by the upper layer portion 11 and the lower layer portion 13, and is softer at a lower density than the upper layer portion 11. A foam having a low impact resilience may be used. And although the middle layer part 12 has set the thickness to 20 mm, for example, it is good also as 10 mm-40 mm.

(中層部12のプロファイル加工)
次に、中層部12のプロファイル加工について説明する。
(Profile processing of middle layer 12)
Next, profile processing of the middle layer portion 12 will be described.

図5(a),(b)は、それぞれ、実施形態1のマットレス1の中層部12の表面に凸部12aおよび凹部12bを形成する製造過程の一例を示す図である。   FIGS. 5A and 5B are diagrams illustrating an example of a manufacturing process in which the convex portion 12a and the concave portion 12b are formed on the surface of the middle layer portion 12 of the mattress 1 of the first embodiment.

中層部12では、図4(a)に示す上層部11の表面に凸部11aおよび凹部11bを形成するプロファイル加工を行う機械と同様にして中層部12に凸部12aおよび凹部12bを形成する。   In the middle layer portion 12, the convex portions 12 a and the concave portions 12 b are formed in the middle layer portion 12 in the same manner as a machine that performs profile processing for forming the convex portions 11 a and the concave portions 11 b on the surface of the upper layer portion 11 shown in FIG.

具体的には、図5(a)に示すように、まず、対向配置された一対のロール2,2の間に、2枚の下層部13の元になる2枚の下層部用発泡体30の間に中層部12の元になる中層部用発泡体20を挟んで接着した3層構造の発泡体を通す。   Specifically, as shown in FIG. 5A, first, two lower layer foams 30 that form the basis of the two lower layer parts 13 between a pair of opposed rolls 2, 2. A foam having a three-layer structure bonded with a middle layer part foam 20 as a base of the middle layer part 12 interposed therebetween is passed.

そして、図5(a)に示すように、両ロール2,2の外周面それぞれに突設した複数の突起21,21,・・・によってその3層構造の発泡体を波打つように変形させた状態でカッター52により、2枚の下層部用発泡体30の間に挟まれた中間層12の元になる中層部用発泡体20を切断するプロファイル加工(凹凸加工)を行うことで、切頭凸部切断面12a1’に凸部12aおよび凹部12bが現れた中層部12と下層部13との積層物を2枚製造する.   Then, as shown in FIG. 5 (a), the foam of the three-layer structure was deformed so as to wave by a plurality of protrusions 21, 21,. In the state, by performing profile processing (unevenness processing) for cutting the middle layer foam 12 that is the base of the intermediate layer 12 sandwiched between the two lower layer foams 30 by the cutter 52, Two laminates of the middle layer portion 12 and the lower layer portion 13 in which the convex portion 12a and the concave portion 12b appear on the convex cutting surface 12a1 ′ are manufactured.

図5(b)は、図5(a)に示すようなプロファイル加工により2枚の下層部用発泡体30の間に中間層12の元になる中層部用発泡体20を挟んだ3層構造の発泡体から製造した切頭凸部切断面12a1’側に凸部12aおよび凹部12bが現れた中層部12の中間品の断面構造を示している。図5(a)に示すようなプロファイル加工によって、図5(b)に示すような断面構造を有する中層部12と下層部13との中間品である中層・下層積層体40が2枚製造できる。   FIG. 5B shows a three-layer structure in which the intermediate layer foam 20 that is the base of the intermediate layer 12 is sandwiched between two lower layer foams 30 by profile processing as shown in FIG. The cross-sectional structure of the intermediate product of the middle layer part 12 in which the convex part 12a and the concave part 12b appeared on the truncated convex part cut surface 12a1 ′ side manufactured from the above foam is shown. By performing profile processing as shown in FIG. 5A, two intermediate layer / lower layer laminates 40, which are intermediate products of the intermediate layer part 12 and the lower layer part 13 having a cross-sectional structure as shown in FIG. .

そして、実施形態1のマットレス1では、図5(b)に示すようにプロファイル加工により形成された凸部12aおよび凹部12bを有する中層部12と下層部13との中層・下層積層体40に対し、下層部13の上面から20mm程の高さhで中層部12の凸部12aを水平にカットすることにより、図5(c)に示すような四角錐形状の切頭凸部12a’を形成する。   And in the mattress 1 of Embodiment 1, as shown in FIG.5 (b), with respect to the middle layer and lower layer laminated body 40 of the middle layer part 12 and the lower layer part 13 which have the convex part 12a and the recessed part 12b formed by profile processing. Then, the convex portion 12a of the middle layer portion 12 is horizontally cut at a height h of about 20 mm from the upper surface of the lower layer portion 13 to form a quadrangular pyramid-shaped truncated convex portion 12a ′ as shown in FIG. To do.

そして、その後は、図5(c)に示すように四角錐形状の切頭凸部12a’を有する中層部12と下層部13とからなる中層・下層積層体40の四角錐形状の切頭凸部12a’の上面(切頭凸部切断面12a1’)の上から、図4(b)に示すようにプロファイル加工によりにプロファイル加工により形成された凸部11aおよび凹部11bを有する上層部11の底面を貼り付けることにより、実施形態1のマットレス1が完成する。   After that, as shown in FIG. 5C, the quadrangular pyramid-shaped truncated convex of the middle-layer / lower-layer laminate 40 composed of the middle layer portion 12 and the lower layer portion 13 having the quadrangular pyramid-shaped truncated convex portion 12a ′. The upper layer portion 11 having the convex portion 11a and the concave portion 11b formed by profile processing by profile processing as shown in FIG. 4 (b) from the upper surface of the portion 12a ′ (the truncated convex portion cutting surface 12a1 ′). By attaching the bottom surface, the mattress 1 of the first embodiment is completed.

(下層部13の構成)
実施形態1の下層部13は、例えば、上層部11の上層部用発泡体10や、中層部12の中層部用発泡体20のウレタンフォームよりも高硬質のウレタンフォームやポリオレフィン系フォーム等の発泡体で構成されている。
(Configuration of lower layer 13)
The lower layer portion 13 of the first embodiment is, for example, foamed urethane foam or polyolefin foam that is harder than the urethane foam of the upper layer portion foam 10 of the upper layer portion 11 or the middle layer portion foam 20 of the middle layer portion 12. Consists of the body.

ここで、下層部13を構成する発泡体としては、細かい気泡が互いに膜で区切られた独立気泡構造のものや、気泡の膜に貫通孔があることで隣り合う気泡が空間として繋がった連続気泡構造のものを用いることができるが、連続気泡構造の発泡体で構成するのが好ましい。これは、下層部13に連続気泡構造の発泡体を用いることで、ユーザ使用時の圧縮変形量を大きくできるからである。   Here, as the foam constituting the lower layer portion 13, a closed cell structure in which fine bubbles are separated from each other by a film, or an open cell in which adjacent bubbles are connected as a space by having a through hole in the bubble film Although a structure can be used, it is preferably composed of a foam having an open cell structure. This is because the amount of compressive deformation during user use can be increased by using a foam having an open cell structure for the lower layer portion 13.

下層部13は、床側に臨む下面が平坦に形成された長方形の板状体であり、マットレス1にかかる荷重を受け止めて、使用者が底付きしないように支持する役割を主に担っている。下層部13は、その硬さが家庭用品品質表示法に基づく表示様式で「かため」に区分される発泡体を用いており、例えば、200N〜300N程度の範囲の硬さにある発泡体を用いている。なお、下層部13は、密度が20kg/m〜30kg/mの範囲にある発泡体を用いている。そして、下層部13は、その厚みを10mm〜30mmの範囲で設定することが好ましく、この実施形態1の下層部13は厚みを例えば30mmに設定している。 The lower layer portion 13 is a rectangular plate-like body having a flat bottom surface facing the floor side, and mainly plays a role of receiving a load applied to the mattress 1 so that the user does not bottom out. . The lower layer portion 13 uses a foam whose hardness is classified as “hard” in a display style based on the household goods quality labeling method. For example, a foam having a hardness in the range of about 200N to 300N is used. Used. Incidentally, the lower portion 13, the density is using a foam in the range of 20kg / m 3 ~30kg / m 3 . And it is preferable to set the thickness of the lower layer part 13 in the range of 10 mm-30 mm, and the lower layer part 13 of this Embodiment 1 has set thickness to 30 mm, for example.

そして以上のように構成された上層部11の底面と、中層部12の切頭凸部12a’の切頭凸部切断面12a1’とを貼り付ける際は、中層部12にプロファイル加工により形成された各凹部12bと、上層部11にプロファイル加工により形成された各凹部11bの中心位置がなるべく一致するように貼り付けると良い。   When the bottom surface of the upper layer portion 11 configured as described above and the truncated convex portion cut surface 12a1 ′ of the truncated convex portion 12a ′ of the middle layer portion 12 are attached, the middle layer portion 12 is formed by profile processing. The recesses 12b may be pasted so that the center positions of the recesses 11b formed in the upper layer portion 11 by profile processing coincide as much as possible.

(マットレス1の作用)
次に、以上のように構成された実施形態1のマットレス1の作用について説明する。
(Function of mattress 1)
Next, the operation of the mattress 1 of the first embodiment configured as described above will be described.

以上のように構成した実施形態1のマットレス1では、中層部12は除膜処理された連続気泡構造の中層部用発泡体20で構成してあるので、下層部13と上層部11とを繋ぐ連結部18においても通気させることができる。   In the mattress 1 of the first embodiment configured as described above, the middle layer portion 12 is composed of the foam 20 for the middle layer portion of the open cell structure that has been subjected to film removal treatment, and thus connects the lower layer portion 13 and the upper layer portion 11. The connecting portion 18 can also be ventilated.

また、実施形態1のマットレス1では、上層部11にプロファイル加工により形成した凸部11aおよび凹部11bと同様に、中層部12にもプロファイル加工により凸部12aおよび凹部12bを形成した後、その凸部12aをカットして切頭凸部12a’を形成し、その切頭凸部切断面12a1’を上層部11の底面に貼り付けることにより中層部12の上面と上層部11の底面との間に空洞部12cを設けているので、中層部12における空気の流動性を高めることができる。   Further, in the mattress 1 of the first embodiment, similarly to the convex portions 11a and the concave portions 11b formed on the upper layer portion 11 by profile processing, the convex portions 12a and the concave portions 12b are formed on the middle layer portion 12 by profile processing, and then the convex portions are formed. The portion 12 a is cut to form a truncated convex portion 12 a ′, and the truncated convex portion cut surface 12 a 1 ′ is attached to the bottom surface of the upper layer portion 11, so that the space between the upper surface of the middle layer portion 12 and the bottom surface of the upper layer portion 11 Since the hollow portion 12c is provided in the middle portion 12, air fluidity in the middle layer portion 12 can be improved.

これにより、マットレス1の内部に熱や湿気などがこもり難くすることができ、快適な使用感が得られる。   Thereby, heat, moisture, etc. can be made hard to stay inside the mattress 1, and a comfortable feeling of use can be obtained.

マットレス1は、下層部13を上層部11よりも硬く設定すると共に、上層部11の反発弾性を下層部13よりも大きく設定することで、良好な体圧分散性が得られると共に、底付き感の発生を防止し得る。中層部12は、隣り合う連結部16が少なくとも下側の下層部13側で繋がるように形成されているので、連結部18の間の空間部20を繋ぐ連通路22を設けても、中層部12が柔軟になり過ぎることを防止できる。   The mattress 1 sets the lower layer portion 13 to be harder than the upper layer portion 11 and sets the rebound resilience of the upper layer portion 11 to be larger than that of the lower layer portion 13, thereby obtaining good body pressure dispersibility and feeling of bottoming. Can be prevented. Since the middle layer portion 12 is formed so that the adjacent connecting portions 16 are connected at least on the lower layer portion 13 side, even if the communication path 22 that connects the space portions 20 between the connecting portions 18 is provided, the middle layer portion 12 can be prevented from becoming too flexible.

従って、実施形態1のマットレス1によれば、上層部11および中層部12それぞれについて、図4(a)および図5(a)に示すように対向配置された一対のロール2,2の間にそれぞれの元になる発泡体を通し、両ロール2,2の外周面それぞれに突設した複数の突起21,21,・・・により各発泡体を波打つように変形させた状態でカッター52により切断するプロファイル加工を行うことにより中層部12の上面側にも、上層部11の上面側と同様に凸部および凹部を形成するようにしたため、中層部12の上面側と上層部11の底面とを貼り付けると、中層部12の上面側と上層部11の底面との間に空洞部12cが形成されることになる。   Therefore, according to the mattress 1 of the first embodiment, each of the upper layer portion 11 and the middle layer portion 12 is disposed between a pair of rolls 2 and 2 that are arranged to face each other as shown in FIGS. 4 (a) and 5 (a). Each foam is cut by a cutter 52 in a state where each foam is deformed so as to wave by a plurality of protrusions 21, 21,... By performing the profile processing, a convex portion and a concave portion are formed on the upper surface side of the middle layer portion 12 in the same manner as the upper surface side of the upper layer portion 11, so that the upper surface side of the middle layer portion 12 and the bottom surface of the upper layer portion 11 are formed. When affixed, a cavity portion 12 c is formed between the upper surface side of the middle layer portion 12 and the bottom surface of the upper layer portion 11.

その結果、実施形態1のマットレス1によれば、上述の特許文献1,2に記載された従来のマットレスとは異なり、中層部12の空洞部12cが上層部11または下層部の凹部まで開口した深い凹部(溝部)を構成しないので、中層部12に通気用の空洞部12cを設けても中層部12が潰れ難くなり、マットレス1全体として人体を均等に支持することができる。   As a result, according to the mattress 1 of the first embodiment, unlike the conventional mattress described in Patent Documents 1 and 2, the hollow portion 12c of the middle layer portion 12 opens to the concave portion of the upper layer portion 11 or the lower layer portion. Since no deep concave portion (groove portion) is formed, the middle layer portion 12 is not easily crushed even if the middle layer portion 12 is provided with a ventilation cavity portion 12c, and the human body can be evenly supported by the mattress 1 as a whole.

また、実施形態1のマットレス1では、中層部12に設ける凸部12aおよび凹部12bは、上層部11に設ける凸部11aおよび凹部11bを形成するプロファイル加工の機械(装置)と同じ機械(装置)により形成するようにしたため、上層部11に形成した凸部11aおよび凹部11bと同様に中層部12に凸部12aおよび凹部12bを形成することが可能となり、空洞部12cを有する中層部12を容易に製造することができる。   In the mattress 1 of the first embodiment, the convex portion 12a and the concave portion 12b provided in the middle layer portion 12 are the same machine (device) as the profile processing machine (device) for forming the convex portion 11a and the concave portion 11b provided in the upper layer portion 11. Therefore, the convex portion 12a and the concave portion 12b can be formed in the middle layer portion 12 similarly to the convex portion 11a and the concave portion 11b formed in the upper layer portion 11, and the middle layer portion 12 having the cavity portion 12c can be easily formed. Can be manufactured.

また、実施形態1のマットレス1では、上層部11、中層部12および下層部13の高さ(厚さ)が、例えば、それぞれ40mm、20mm、30mmであり、プロファイル加工により中層部12に凸部12aおよび凹部12bを形成する際、図5(a)に示すように下層部13の元になる2枚の下層部用発泡体30の間に中層部用発泡体20を挟んで接着した3層構造の発泡体を通してプロファイル加工することにより、切頭凸部切断面12a1’に凸部12aおよび凹部12bが現れた中層部12と下層部13との積層物を2枚製造するようにしたため、図5(a)〜(c)などに示すように中層部12の凹部12bの深さを極限まで、すなわち中層部12の底面や下層部13に到達するまで深く生成することが可能となり、空洞部12cを有する中層部12を容易に製造することができる。   Moreover, in the mattress 1 of Embodiment 1, the height (thickness) of the upper layer part 11, the middle layer part 12, and the lower layer part 13 is, for example, 40 mm, 20 mm, and 30 mm, respectively, and is convex on the middle layer part 12 by profile processing. When forming 12a and the recessed part 12b, as shown to Fig.5 (a), 3 layers which pinched | interposed the foam 20 for intermediate | middle layers between two lower layer foams 30 used as the origin of the lower layer 13 Since profile processing is performed through the foam of the structure, two laminates of the middle layer portion 12 and the lower layer portion 13 in which the convex portion 12a and the concave portion 12b appear on the truncated convex portion cutting surface 12a1 ′ are manufactured. 5 (a) to 5 (c) and the like, the depth of the concave portion 12b of the middle layer portion 12 can be deeply generated until the depth reaches the limit, that is, until reaching the bottom surface or the lower layer portion 13 of the middle layer portion 12. 12 It is possible to easily manufacture a middle portion 12 having a.

また、実施形態1のマットレス1では、中層部12に設ける空洞部12cは、プロファイル加工により中層部12の表面に設けた複数の凸部21,21,・・・の先端部を所定の高さhで水平にカットして四角錐形状の切頭凸部12a’を形成した後、その四角錐形状の切頭凸部12a’を上層部11の底面に貼り付けることにより形成するようにしたため、上層部11に設ける凸部11aおよび凹部11bを形成するプロファイル加工の機械(装置)と同じ機械(装置)を使用してプロファイル加工しても、中層部12に所望の深さの空洞部12cを形成することができ、空洞部12cを有する中層部12を容易かつ低コストに製造することができる。   Further, in the mattress 1 of the first embodiment, the hollow portion 12c provided in the middle layer portion 12 has a predetermined height at the tips of the plurality of convex portions 21, 21, ... provided on the surface of the middle layer portion 12 by profile processing. Since it is cut horizontally at h to form a quadrangular pyramid-shaped truncated convex portion 12 a ′, the quadrangular pyramid-shaped truncated convex portion 12 a ′ is pasted on the bottom surface of the upper layer portion 11, Even if profile processing is performed using the same machine (apparatus) as the profile processing machine (apparatus) for forming the convex portion 11a and the concave portion 11b provided in the upper layer portion 11, the cavity portion 12c having a desired depth is formed in the intermediate layer portion 12. Therefore, the middle layer portion 12 having the cavity portion 12c can be manufactured easily and at low cost.

なお、実施形態1のマットレス1では、プロファイル加工により中層部12に凸部12aおよび凹部12bを形成する際、図5(a)に示すように下層部13の元になる2枚の下層部用発泡体30の間に中層部用発泡体20を挟んで接着した3層構造の発泡体を通してプロファイル加工することにより、切頭凸部切断面12a1’に凸部12aおよび凹部12bが現れた中層部12と下層部との積層物を2枚製造するように説明したが、本発明では、これに限らず、下層部13の元になる2枚の下層部用発泡体30の間に中層部用発泡体20を挟まずに、中層部用発泡体20のみを一対のロール2,2の間に通してプロファイル加工を実行するようにしても勿論良い。   In the mattress 1 of the first embodiment, when forming the convex portion 12a and the concave portion 12b in the middle layer portion 12 by profile processing, as shown in FIG. The middle layer part in which the convex part 12a and the concave part 12b appear on the truncated convex part cut surface 12a1 ′ by profile processing through a foam having a three-layer structure in which the foam 20 for the middle layer part is bonded between the foams 30. However, in the present invention, the present invention is not limited to this, and the present invention is not limited to this. For the middle layer portion between the two lower layer portion foams 30 that form the lower layer portion 13. Of course, only the middle layer foam 20 may be passed between the pair of rolls 2 and 2 without sandwiching the foam 20 to execute the profile processing.

また、上記実施形態1のマットレス1では、図3(b)に示すような断面構造に形成して説明したが、図5(a)に示すように下層部13の元になる2枚の下層部用発泡体30の間に中層部用発泡体20を挟んで接着した3層構造の発泡体を通してプロファイル加工することにより図6(a)の断面構造に示すように下層部13の中まで深く削って生成するようにしても良いし、図6(b)の断面構造に示すように上層部11に凹部11bを中層部12の四角錐形状の切頭凸部12a’の切頭凸部切断面(上側面)12a1’に達するようにプロファイル加工するようにしても勿論良い。前者のように形成すると、中層部12に形成した凹部12cは、下層部13の中まで達するため、凹部12cの表面積が増大するので、中層部12における排熱効果や湿気排出効果をより向上させることができる。   Further, the mattress 1 of the first embodiment has been described with a cross-sectional structure as shown in FIG. 3B. However, as shown in FIG. Profile processing is performed through a three-layer structure foam in which the middle layer foam 20 is sandwiched between the partial foams 30 to deepen into the lower layer 13 as shown in the cross-sectional structure of FIG. As shown in the cross-sectional structure of FIG. 6B, the upper layer portion 11 has a concave portion 11b and the middle layer portion 12 has a quadrangular pyramid-shaped truncated convex portion 12a ′. Of course, the profile processing may be performed so as to reach the surface (upper side surface) 12a1 ′. When the former is formed as in the former, the recess 12c formed in the middle layer 12 reaches the lower layer 13, and the surface area of the recess 12c is increased. Therefore, the heat exhaust effect and the moisture exhaust effect in the middle layer 12 are further improved. be able to.

実施形態2.
上記実施形態1のマットレス1では、中層部12を上層部12と同様にプロファイル加工すると共に、さらに、下層部13の上面から20mm程の高さhで中層部12の凸部12aを水平にカットすることにより、図5(c)に示すような四角錐形状の切頭凸部12a’を形成して、最終的には、図2に示すように対角線上で隣接する四角錐形状の切頭凸部12a’同士は切頭凸部切断面12a1’が水平、すなわち面一に連続する一方、四角錐形状の切頭凸部12a’に囲まれた凹部12bは独立するように形成したため、この中層部12の四角錐形状の切頭凸部12a’の切頭凸部切断面12a1’に上層部11の底面を被せて貼り付けると、各凹部12bは独立した空洞部12cを形成することになる。
Embodiment 2. FIG.
In the mattress 1 of the first embodiment, the middle layer portion 12 is profiled in the same manner as the upper layer portion 12, and the convex portion 12a of the middle layer portion 12 is horizontally cut at a height h of about 20 mm from the upper surface of the lower layer portion 13. By doing so, a quadrangular pyramid-shaped truncated convex portion 12a ′ as shown in FIG. 5C is formed, and finally, as shown in FIG. The convex portions 12a ′ are formed so that the truncated convex portion cutting surfaces 12a1 ′ are horizontal, that is, flush with each other, while the concave portions 12b surrounded by the quadrangular pyramid-shaped truncated convex portions 12a ′ are independent. If the bottom surface of the upper layer part 11 is applied to the truncated convex part cut surface 12a1 ′ of the quadrangular pyramid-shaped truncated convex part 12a ′ of the middle layer part 12 and attached, each concave part 12b forms an independent cavity part 12c. Become.

これに対し、実施形態2のマットレス1では、図7に示すように実施形態1の場合よりも下層部13の上面から高い高さで中層部12の凸部12aを水平にカットして四角錐形状の切頭凸部12a’を形成するか、あるいは中層部12の凸部12aを水平にカットする処理を省略して、図2に示す実施形態1の中層部12における四角錐形状の切頭凸部12a’同士のように切頭凸部切断面12a1’が水平に連続することなく、対角線の方向で隣接する空洞部12c同士が連通部12dを介して連通するように構成しても良い。   On the other hand, in the mattress 1 of the second embodiment, as shown in FIG. 7, the convex portion 12a of the middle layer portion 12 is horizontally cut at a height higher than the upper surface of the lower layer portion 13 as compared with the case of the first embodiment. The truncated truncated convex portion 12a 'is formed, or the process of horizontally cutting the convex portion 12a of the middle layer portion 12 is omitted, and the truncated pyramid shaped truncated shape in the middle layer portion 12 of the first embodiment shown in FIG. Instead of the convex protrusion cutting surfaces 12a1 'being horizontally continuous like the convex parts 12a', the cavity parts 12c adjacent in the diagonal direction may communicate with each other via the communication part 12d. .

従って、実施形態2のマットレス1によれば、上述の実施形態1のマットレス1と同様の効果が得られると共に、さらに中層部12において連通部12dを介し対角線方向で隣接する空洞部12c同士が連通部12dを介して連通し、対角線方向である水平方向にも人体から発せられる熱や湿気を排出するため、上述の実施形態1のマットレス1よりも排熱効果や湿気排出効果が高いマットレス1を提供することができる。   Therefore, according to the mattress 1 of the second embodiment, the same effect as that of the mattress 1 of the first embodiment described above can be obtained, and the cavity portions 12c adjacent in the diagonal direction in the middle layer portion 12 can communicate with each other via the communication portion 12d. In order to discharge heat and moisture emitted from the human body also in the horizontal direction that is the diagonal direction, the mattress 1 having higher exhaust heat effect and moisture discharge effect than the mattress 1 of the first embodiment described above is communicated via the portion 12d. Can be provided.

特に、中層部12の凸部12aを水平にカットする処理を省略して連通部12dを形成する場合には、その分だけ製造プロセスを簡単にすることができるので、空洞部12cおよび連通部12dを有することにより上述の実施形態1のマットレス1よりも排熱効果や湿気排出効果が高い中層部12を容易に製造することができる。   In particular, in the case where the communication part 12d is formed by omitting the process of horizontally cutting the convex part 12a of the middle layer part 12, the manufacturing process can be simplified correspondingly, so the cavity part 12c and the communication part 12d. Thus, the middle layer portion 12 having higher exhaust heat effect and moisture exhaust effect than the mattress 1 of the first embodiment can be easily manufactured.

実施形態3.
上述の実施形態1,2のマットレス1では、下層部13については凸部および凹部を設けずに説明したが、実施形態3のマットレス1では、下層部13については凸部13aおよび凹部13bを設けたものである。なお、実施形態3のマットレス1の上層部11および中層部12の構成は、上述した実施形態1,2のマットレス1の上層部11および中層部12の構成と同じである。
Embodiment 3. FIG.
In the mattress 1 of the first and second embodiments described above, the lower layer portion 13 has been described without providing the convex portion and the concave portion, but in the mattress 1 of the third embodiment, the lower layer portion 13 is provided with the convex portion 13a and the concave portion 13b. It is a thing. The configurations of the upper layer portion 11 and the middle layer portion 12 of the mattress 1 of the third embodiment are the same as the configurations of the upper layer portion 11 and the middle layer portion 12 of the mattress 1 of the first and second embodiments.

図8(a)に示す実施形態3のマットレス1は、下層部13についても上層部11や中層部12と同様にプロファイル加工を施して凸部13aおよび凹部13bを設けて、その凸部13aを中層部12の底面に貼り付けて構成したものである。   In the mattress 1 of the third embodiment shown in FIG. 8A, the lower layer portion 13 is profiled in the same manner as the upper layer portion 11 and the middle layer portion 12 to provide the convex portion 13a and the concave portion 13b. It is configured by being affixed to the bottom surface of the middle layer portion 12.

また、図8(b)に示すように、実施形態3のマットレス1では、下層部13についても上層部11や中層部12と同様にプロファイル加工を施して凸部13aおよび凹部13bを設けた後、下層部13の凸部13aおよび凹部13bを形成していない底面側を中層部12の底面に貼り付けて構成するようにしても勿論良い。   Further, as shown in FIG. 8B, in the mattress 1 of the third embodiment, the lower layer portion 13 is subjected to profile processing similarly to the upper layer portion 11 and the middle layer portion 12 to provide the convex portions 13a and the concave portions 13b. Of course, the bottom surface side of the lower layer portion 13 where the convex portion 13a and the concave portion 13b are not formed may be attached to the bottom surface of the middle layer portion 12 for configuration.

また、図9(a),(b)に示すように、下層部13にはプロファイル加工を施さずに、円柱形状の打ち抜き加工等により中空部13eを設けても良い。   Further, as shown in FIGS. 9A and 9B, the lower layer portion 13 may be provided with a hollow portion 13e by a cylindrical punching process or the like without performing profile processing.

従って、実施形態3のマットレス1によれば、上述の実施形態1,2のマットレス1と同様の効果が得られると共に、さらに下層部13にもプロファイル加工を施して凸部13aおよび凹部13bを設けたり、打ち抜き加工等により空洞部13cを設けたため、中層部12の空洞部12cで滞留した人体から排出された熱や湿気を下層部13に設けた凹部13bや空洞部13cからも逃げ易くなり、上述の実施形態1,2のマットレス1よりも排熱効果や湿気排出効果が高いマットレス1を提供することができる。   Therefore, according to the mattress 1 of the third embodiment, the same effect as the mattress 1 of the first and second embodiments can be obtained, and the lower layer portion 13 is further profiled to provide the convex portions 13a and the concave portions 13b. Since the cavity 13c is provided by punching or the like, heat and moisture discharged from the human body staying in the cavity 12c of the middle layer 12 can be easily escaped from the recess 13b and the cavity 13c provided in the lower layer 13, It is possible to provide the mattress 1 having higher exhaust heat effect and moisture exhaust effect than the mattress 1 of the first and second embodiments.

尚、上記実施懈怠1〜3のマットレス1の説明では、上層部11、中層部12および下層部13からなる3層構造のマットレス1で説明したが、本発明ではこれに限らず、下層部13と中層部12との間や上層部11と中層部12との間等に、別の機能層を設けた4層以上の複層構造であっても勿論良く、要は、上層部11と下層部13との間の中層部12にプロファイル加工を施すことにより空洞部12cを設ける構成であれば良い。   In the description of the mattress 1 of the implementation failures 1 to 3 described above, the mattress 1 having the three-layer structure including the upper layer portion 11, the middle layer portion 12 and the lower layer portion 13 has been described, but the present invention is not limited to this, and the lower layer portion 13 is not limited thereto. Of course, a multi-layer structure of four or more layers in which another functional layer is provided between the upper layer portion 11 and the middle layer portion 12 or the like may be used. Any structure may be used as long as the hollow portion 12c is provided by performing profile processing on the middle layer portion 12 between the portion 13 and the intermediate portion 12.

また、上記実施形態1〜3のマットレス1を構成する上層部11、中層部12および下層部13それぞれの各層の硬さや素材、密度、形状などの特性はあくまで一例であり、各層の特性は、用途によって適宜変更することができる。   In addition, the characteristics such as hardness, material, density, and shape of each layer of the upper layer part 11, the middle layer part 12, and the lower layer part 13 that constitute the mattress 1 of the first to third embodiments are merely examples, and the characteristics of each layer are as follows. It can be appropriately changed depending on the application.

また、上記実施形態1〜3のマットレス1は、就寝時に用いるものだけでなく、着座時や手術などの医療用途、その他の用途における座布団やクッション、敷物等として用いることができる。   Moreover, the mattress 1 according to the first to third embodiments can be used not only for sleeping, but also as a cushion, a cushion, a rug, or the like for medical use such as sitting or surgery, and other uses.

1 マットレス
11 上層部
11a 凸部
11b 凹部
12 中層部
12a 凸部
12a’ 切頭凸部
12a1’ 切頭凸部切断面
12b 凹部
12c 空洞部
12d 連通部
13 下層部
13a 凸部
13b 凹部
13e 中空部
10 上層部用発泡体
20 中層部用発泡体
30 下層部用発泡体
40 中層・下層積層体
5 ロール
51 突起
52 カッター
DESCRIPTION OF SYMBOLS 1 Mattress 11 Upper layer part 11a Convex part 11b Concave part 12 Middle layer part 12a Convex part 12a 'A truncated convex part 12a1' A truncated convex part cut surface 12b Concave part 12c Cavity part 12d Communication part 13 Lower layer part 13a Convex part 13b Concave part 13e Hollow part 10 Foam for upper layer portion 20 Foam for middle layer portion 30 Foam for lower layer portion 40 Middle layer / lower layer laminate 5 Roll 51 Projection 52 Cutter

Claims (7)

弾力性を有する下層部用発泡体で構成され、床側となる下層部と、
弾力性を有する中層部用発泡体で構成され、前記下層部の上に設けられる中層部と、
弾力性を有する上層部用発泡体で構成され、使用者の体を支持する上面側に複数の凸部および凹部を有する上層部とを備えたマットレスにおいて、
前記上層部は、
対向配置された一対のロールの間に当該上層部の元になる前記上層部用発泡体を通して、両ロールの外周面それぞれに突設した複数の突起によって前記上層部用発泡体を波打つように変形させた状態でカッターにより切断するプロファイル加工を行うことで、その切断面に凸部および凹部を形成し、
前記中層部は、
対向配置された一対のロールの間に当該中層部の元になる前記中層部用発泡体を通して、両ロールの外周面それぞれに突設した複数の突起によって前記中層部用発泡体を波打つように変形させた状態でカッターにより切断するプロファイル加工を行うことで、その切断面に凸部および凹部を形成することを特徴とするマットレス。
It is composed of a foam for the lower layer part having elasticity, and the lower layer part which becomes the floor side,
Consists of a foam for the middle layer part having elasticity, the middle layer part provided on the lower layer part,
In a mattress comprising a foam for an upper layer part having elasticity and having an upper layer part having a plurality of convex parts and concave parts on the upper surface side for supporting the user's body,
The upper layer part is
The foam for the upper layer part is deformed so as to be waved by a plurality of projections projecting on the outer peripheral surfaces of both rolls through the foam for the upper layer part between the pair of opposed rolls. By performing profile processing that cuts with a cutter in the state of being made, a convex part and a concave part are formed on the cut surface,
The middle layer is
The foam for the middle layer part is deformed so as to be waved by a plurality of protrusions projecting from the outer peripheral surfaces of both rolls through the foam for the middle layer part that is the origin of the middle layer part between a pair of opposed rolls. A mattress characterized by forming a convex part and a concave part on the cut surface by performing profile processing that is cut by a cutter in the state of being made.
請求項1に記載のマットレスにおいて、
前記上層部と前記中層部とは、同一のプロファイル加工機械のカッターによりプロファイル加工を行うことにより、それらの元になる前記上層部用発泡体と前記中層部用発泡体の切断面に形成した凸部および凹部は同一形状であることを特徴とするマットレス。
The mattress according to claim 1,
The upper layer part and the middle layer part are formed on the cut surfaces of the foam for the upper layer part and the foam for the middle layer part by performing profile processing with a cutter of the same profile processing machine. The mattress is characterized in that the portion and the recess have the same shape.
請求項1または請求項2に記載のマットレスにおいて、
前記中層部は、
対向配置された一対のロールの間に、前記下層部の元になる2枚の前記下層部用発泡体の間に前記中層部用発泡体を挟んで接着した3層構造の発泡体を通し、両ロールの外周面それぞれに突設した複数の突起によってその3層構造の発泡体を波打つように変形させた状態でカッターにより少なくとも中間層の前記下層部用発泡体を切断するプロファイル加工を行うことで、切断面に凸部および凹部を形成することを特徴とするマットレス。
The mattress according to claim 1 or 2,
The middle layer is
Between a pair of rolls arranged opposite to each other, a foam having a three-layer structure in which the foam for the middle layer part is sandwiched between the two foams for the lower part that are the basis of the lower layer part is passed, Perform profile processing to cut at least the lower layer foam of the intermediate layer with a cutter in a state in which the foam of the three-layer structure is deformed so as to be waved by a plurality of protrusions protruding from the outer peripheral surfaces of both rolls. The mattress is characterized in that a convex portion and a concave portion are formed on the cut surface.
請求項1〜請求項3のいずれか一の請求項に記載のマットレスにおいて、
前記中層部は、
前記プロファイル加工により切断面に凸部および凹部が現れた中層部用発泡体を得て、その後、その中層部用発泡体の表面側に形成された複数の凸部の先端部を所定の高さで水平にカットすることにより製造することを特徴とするマットレス。
In the mattress according to any one of claims 1 to 3,
The middle layer is
By obtaining the foam for the middle layer part in which the convex part and the concave part appear on the cut surface by the profile processing, and then, the tip parts of the plurality of convex parts formed on the surface side of the foam for the middle layer part have a predetermined height. Mattress produced by cutting horizontally with
請求項4に記載のマットレスにおいて、
前記中層部は、
前記プロファイル加工により切断面に凸部および凹部が現れた中層部用発泡体を得て、その後、その中層部用発泡体の表面側に形成された複数の凸部の先端部を所定の高さで水平にカットする際、カットにより残った切頭凸部の切断面が隣接する他の突起部の切断面と水平に連続しないようにカットして、
前記中層部の切頭凸部の切断面を前記上層部の底面に貼り付けた際、前記中層部にプロファイル加工により形成された各凹部が隣接する他の凹部と連通部を介して連通するように形成したことを特徴とするマットレス。
The mattress according to claim 4,
The middle layer is
By obtaining the foam for the middle layer part in which the convex part and the concave part appear on the cut surface by the profile processing, and then, the tip parts of the plurality of convex parts formed on the surface side of the foam for the middle layer part have a predetermined height. When cutting horizontally with, cut so that the cutting surface of the truncated convex part remaining by cutting does not continue horizontally with the cutting surface of other adjacent protrusions,
When the cut surface of the truncated convex portion of the middle layer portion is attached to the bottom surface of the upper layer portion, each concave portion formed by profile processing in the middle layer portion communicates with another adjacent concave portion via a communicating portion. A mattress characterized by being formed.
請求項4に記載のマットレスにおいて、
前記中層部は、
前記プロファイル加工により切断面に凸部および凹部が現れた中層部用発泡体を得て、その後、その中層部用発泡体の表面側に形成された複数の凸部の先端部を所定の高さで水平にカットする際、カットにより残った切頭凸部の切断面が隣接する他の突起部の切断面と水平に連続するようにカットして、
前記中層部の切頭凸部の切断面を前記上層部の底面に貼り付けた際、前記中層部にプロファイル加工により形成された各凹部が隣接する他の凹部と連続せず独立した空洞部を形成するようにしたことを特徴とするマットレス。
The mattress according to claim 4,
The middle layer is
By obtaining the foam for the middle layer part in which the convex part and the concave part appear on the cut surface by the profile processing, and then, the tip parts of the plurality of convex parts formed on the surface side of the foam for the middle layer part have a predetermined height. When cutting horizontally with, cut so that the cutting surface of the truncated convex part remaining by cutting is continuous with the cutting surface of other adjacent protrusions,
When the cut surface of the truncated convex portion of the middle layer portion is attached to the bottom surface of the upper layer portion, each of the concave portions formed by profile processing in the middle layer portion is not continuous with other adjacent concave portions, and independent hollow portions are formed. A mattress characterized by being formed.
請求項1〜請求項6のいずれか一の請求項に記載のマットレスにおいて、
前記中層部の上側面と、前記上層部の底面とを貼り付ける際、前記中層部にプロファイル加工により形成された各凹部と、前記上層部にプロファイル加工により形成された各凹部の中心位置がなるべく一致するように貼り付けることを特徴とするマットレス。
In the mattress according to any one of claims 1 to 6,
When affixing the upper side surface of the middle layer portion and the bottom surface of the upper layer portion, each concave portion formed by profile processing in the middle layer portion and the center position of each concave portion formed by profile processing in the upper layer portion should be as much as possible A mattress that is pasted to match.
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