JPS62137017A - Mattress structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application of the Invention The present invention relates to a mattress structure that provides a comfortable sleeping experience.

<Prior art> Many mattress structures have been known, but none have been quantitatively evaluated from the standpoint of sleeping comfort.
All of these have been discussed only conceptually, and no mattress structure has been shown that provides extremely good sleeping comfort from a quantitative standpoint, even when compared to normally used cotton futons.

<Objective of the Invention> The object of the present invention is to provide a mattress structure that provides extremely comfortable sleeping comfort, and in particular, by optimizing physical quantities to improve sleeping comfort using scientific methods, a mattress that is even more comfortable to sleep on. Its purpose is to provide a structure.

<Structure of the Invention> The present invention provides that the sleeping comfort coefficient SCI expressed by the following equation (1) is (
2) This is a mattress structure characterized by being within the range of formula.

SCI = 28.4 0,138xt 3.54)
c2 +10.9x3 (1118≦SCI≦24
(21x1; maximum load 5001
Recovery rate of compression work at /-) x2: Compression length when maximum weight is 50011/-)13
', (201/thickness at cd stress) - (100jl
/c+j thickness under stress) In other words, the present inventors conducted in-depth research into the sleeping comfort of futons and found that there is an extremely good correlation between the amount of energy metabolism, which is a palmometer of the degree of rest during sleep, and the compression characteristics of the futon. We found that there is a connection between That is, as a result of the study using the samples shown in Table 1, the recovery rate (xl), compression length (x2), and (20El/
From the above equation (1) consisting of (thickness at cd stress) - (4th thickness at 100JF/aI stress) (x3), the SC to be stinged is
As shown in FIG. 2, the I value shows an extremely good correlation with the amount of energy metabolism during sleep (correlation coefficient = 0.986). Also, Table 2 shows the difference between the Kraepelin test (fatigue test; higher values indicate better recovery) before and after sleep, which were conducted at the same time! 2. A7 is good and special K
A7 shows extremely good values. Furthermore, Table 2 shows the amount of energy metabolism, and it is known that when the amount of energy metabolism is 24 or less, a comfortable state of rest that has never been seen before is superior. However, there is a lower limit to the amount of energy metabolism required for humans, and the upper limit W is 18 or more, preferably 20.

In the present invention, the curve of the desired compression characteristic has a shape as shown in FIG.

There are problems such as the size of the mattress being too large, making it impossible to obtain a mattress structure within the SCI range that provides a comfortable sleeping experience.

The present inventors have ascertained the relationship between the energy metabolism and the compression characteristics of each of the above-mentioned mattresses, and have also obtained the relationship between the initial sleeping comfort and the compression characteristics.
) is expressed by equation (3).

I 0=-0,88-0,0083X1+0,021x
2+0. (1862x4+0.0081 xs
・・・・・・・・・・・・・・・ (3) However, x
8; Recovery rate of compression work when the maximum load is 500 g/cm3 (@ x2; Compression length (H) when the maximum load is 5001/cj) X4: Linearity obtained in Fig. 1 (2) x, ; thickness α) In the present invention, as described above, <SCI is between 18 and 24 τ
It is necessary that the initial comfort coefficient is -0.
, 6 or more, and a mattress structure that does not satisfy both of these conditions is ideal as a mattress structure because it provides good initial sleeping comfort and extremely good rest during sleep.

The mattress structure in the present invention is made of rubber urethane elastic material, #! It may be made of a fiber or a composite structure of these, or a similar insulator. However, in consideration of moisture permeability, it is preferable to use fibers in whole or in part.

The form of the structure is a foam structure, #! fiber laminated web.

These include hard cotton structures made of adhesive fibers or adhesives, or combinations of these. As fibers, natural fibers such as cotton wool, etc.1. Regenerated fibers such as rayon.

Polyester, nylon, acrylic, vinylon.

Any synthetic fibers such as polybupylene, polyvinyl chloride, etc. may be used. The thickness of the fibers is also not particularly limited, but may be 0.
A range of 1 denier to 500 denier is preferred.

Combinations of fibers of different deniers are also effective.

The factors considered in the present invention were measured at a temperature of 25°C and 704°C.
The compression characteristics were calculated using the following formula.
Calculated from the following factors.

x2=mu0(1) 1cm=14N (1) Super Example 1 A binder in which low melting point polyethylene terephthalate copolymerized with isophthalic acid as the third component and ordinary polyethylene terephthalate constitute a sheet-nacore type 6-1 conjugate. Fiber (single yarn fineness 4
A web with a basis weight of 1 kII/m' was formed by blending ordinary polyethylene terephthalate stable (single fiber f36 da, fiber length 76 silk) with a ratio of υj of 2:8 to form a web with a basis weight of 1 kII/m'. ℃ for 3 minutes to create a structure with a thickness of 3 mm.Meanwhile, the above binder
Ii fiber and polyethylene terephthalate staple (fiber K
1.5 da, 11 fiber length 36i + filtration) was mixed with 4 = 6 = J combination and 0.6 yu/1 r? The web was formed by heat treatment at 160° C. for 3 minutes to produce a structure (B) with a thickness of 21 mm.

Next, the structure (B) was laminated on top of the structure, covered with a futon side material, and then sewn together by quilting to form a mattress structure. I did a compression test on the rolled mattress and calculated the csor value and IC value, which was 80'I2.
3.0, IO-0.54 was obtained, and a mattress structure suitable for comfortable sleep and with good initial comfort was obtained.

Example 2 In Example 1, the fabric weight inside the structure was increased to 0.5 +7/go,
The thickness is 1.5cm, and the basis weight of structure (B) is 0.4k.
g/m + thickness was set to 1.2111. The resulting mattress had a 5CI of 20.8. It was IC-0.95. When we conducted a practical test, we were able to get a comfortable night's sleep, but the initial comfort was not very good.

Comparative Example 1 Polyethylene terephthalate stable (fineness 6 de, fiber length 51 m) with coiled crimp was fabricated with a basis weight of 3.
kg/m', and this was covered with a side fabric to create a mattress with a thickness of 15 mm. This mattress S
Calculate the CI value and IC value based on the compression characteristics (t, knee result) 1S
CI 28.5, IC 0.61. Although the initial comfort was very good, the mattress did not provide comfort during sleep.

Table 2: Mattress characteristics (Note) ■Change in Kraepelin value is the value obtained by subtracting the Kraepelin value before sleep from the Kraepelin value after sleep.

[Brief explanation of drawings]

FIG. 1 is a model diagram of a compression curve when measuring the compression characteristics of a mattress. FIG. 2 shows the relationship between the SCI value defined in the present invention and the amount of energy metabolism during sleep. Figure 3 shows examples of various compression curves, where (a) is the desired shape, (hl
(C) This is the shape of a typical compression curve in the undesirable case. Rattan 1 Fig.

Claims (1)

[Claims] A mattress structure characterized in that a sleeping comfort coefficient SCI expressed by the following formula (1) is within the range of formula (2) = 28.4-0.138_x_1-3.54_x
_2+10.9_x_3(1) 18≦SCI≦24(2) x_1; Compression work recovery rate (%) when maximum load is 500 g/cm^3 x_2; Compression length when maximum load is 500 g/cm^3 ( c.
m) x_3; (thickness at 20g/cm^3 stress) - (1
00g/cm^3Thickness at stress)