JPH07308241A - Spring mattress - Google Patents

Abstract

PURPOSE:To improve gas permeability when a non-permeable foamed material as a stuffing material for a spring mattress is used in a layer near the surface of the mattress for preventing moisture from being accumulated therein and maintain environment hygienic and comfortable in a bed during a sleep. CONSTITUTION:Regarding both upper and lower sides of a spring unit 1 consisting of many connected springs, a spring bearing sheet 2, an intermediate cushion 3 and a surface quilt cushion 4 are copolymerized at least on the upper side, and a gore section 5 is provided with many air vents 6 and 6'. Also, the surface quilt cushion 4 is so constituted that a hygroscopic cotton 10 having a moisture absorption function approximately two times as high as ordinary cotton wool is copolymerized on a soft foamed material 9 having surface irregularities of such sizes as larger at a center section corresponding the lengthwise direction of a mattress than at both sides, and a quilting process is applied between a surface cloth 11 and a lining 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improving the breathability of a spring mattress.

[0002]

2. Description of the Related Art Generally, in a spring mattress, a large number of spring coils are connected in a flat plate to form a spring unit, and an elastic foam made of urethane foam or the like is attached to at least one surface of the spring unit via a protective material. However, the whole is covered with an exterior body.

In a spring mattress having such a structure, an elastic foam such as urethane foam is often used in a layer close to the surface in order to improve cushioning properties and maintain a volume appearance.

However, in this case, since the elastic foam itself does not have air permeability, the ventilation is blocked above and below the layer of the elastic foam, the mattress as a whole does not dry well, and moisture due to sweating during sleep is The moisture does not evaporate completely until the sleep of, and the moisture accumulates in the elastic foam layer, the temperature inside the bed rises due to the body temperature of the body during sleep, the amount of water evaporated from the mattress increases, and the humidity inside the bed increases. There was a drawback that it was too high to sleep and could not sleep well. In extreme cases, the humidity in the spring mattress became too high, causing mold to develop, and the bed had an unsanitary environment.

[0005]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is that, when an air-impermeable elastic foam is used in a layer near the surface as a filling material for a spring mattress, perspiration from the body during sleep, etc. The purpose of this is to make it easier for water absorbed in the spring mattress to evaporate by the next sleep, to prevent water from accumulating in the spring mattress, and to maintain a hygienic and comfortable environment in the bed during sleep. It was done.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] A spring unit (1) formed by connecting a large number of springs is provided with a spring seat (2), an intermediate cushion (3) and a surface quilt cushion (4) on at least the upper and lower surfaces. In the case of being polymerized and having a large number of air holes (6) (6 ') in the gusset part (5), the surface quilt cushion (4) has unevenness on the surface, and the size of the unevenness The central part (7), which corresponds to the longitudinal direction of the mattress, has both side parts (8)
(8 ') Polymerized sweat absorbent cotton (10) having about twice the hygroscopicity of normal cotton on a larger flexible foam (9), and between the outer material (11) and the lining (12) It is a spring mattress that is quilted.

[0007]

The softness of the foamed foam (9) of the surface quilt cushion (4) has an uneven surface so that the elasticity of the foamed soft foam can be obtained when no load is applied to the sweat absorbent cotton (10). To restore the original state, the uneven space is formed and the air ventilation space is secured.
Moisture accumulated between the flexible foam (9) and the sweat-absorbing cotton (10) easily diffuses.

Usually, the amount of sweat during sleep is large from the waist to the back of the body, and a large amount of moisture accumulates in the central part of the mattress, which is the longitudinal direction of the mattress. Since the central portion (7) which corresponds to the direction is larger than the both side portions (8) and (8 '), the flexible foam (9) and the sweat absorbent cotton (10)
As for the moisture accumulated between the spring mattresses, the central part (7), which corresponds to the longitudinal direction of the spring mattress, has both side parts (8) (8 ').
It wicks more moisture and results in a more even dry condition for the entire spring mattress.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.
Shows a cross-sectional view in the longitudinal direction of the subling mattress. Soft urethane foam is used as the flexible foam (9), and the unevenness of the surface is as shown in FIG. 3 in the longitudinal direction of the spring mattress. The size is different in the central part (7) and both side parts (8) and (8 '), which are roughly divided into three parts, and as shown in FIGS. 4 and 5, the central part (7) has both side parts. (8) It is larger than (8 '), and the depth of the unevenness is about double. Sweat absorbent cotton (1
0) is polymerized.

The sweat absorbent cotton (10) is a cotton-like material obtained by coating the surface of the Tetoron fiber with a water-supplying substance.
It has twice the water absorption and wicking properties of normal cotton.

The intermediate cushion (3) is made of soft urethane foam as the flexible foam and has unevenness on the surface. The surface quilt cushion (4) layer and the intermediate cushion (3) layer are in close contact with each other. If you are
Since there is no escape area for moisture accumulated during this period and moisture is less likely to diffuse, irregularities are provided on the surface to secure a ventilation space for air circulation.

The spring receiving sheet (2) is a compressed felt made of palm fiber having unevenness on the surface, and has excellent air permeability, so that the spring receiving sheet (2) below the intermediate cushion (3) A large number of air holes (6) having moisture accumulated in the spring unit (1) on the gore (5)
(6 ') ...- It has a structure that is easy to diverge through.

[0013]

EFFECTS OF THE INVENTION By implementing the present invention, even if the air-permeable soft foam (9) is used as the filling layer on the spring unit (1) as the spring mattress, the soft foam Since the surface of (9) has unevenness, it is possible to form an uneven space portion with the sweat absorbent cotton (10) when there is no load, resulting in a structure that easily disperses moisture, and from the body during sleep. It can absorb the generated sweat and quickly dissipate accumulated moisture, and the size of the unevenness of the central part (7), which is the longitudinal direction of the spring mattress of the flexible foam (9), is the both side parts (8).
Since it is larger than (8 '), the diffusion rate of moisture accumulated in the central part (7) where moisture is most likely to accumulate is higher than that of both sides (8) (8'). As a result, the spring mattress can be dried in a uniform manner as a whole. Therefore, the moisture accumulated due to sweating during sleep can be diffused while the spring mattress is not used, and the moisture will not be accumulated in the spring mattress, and the humidity environment in the bed during sleep will be comfortable. It is intended to provide a hygienic spring mattress that keeps the mold free of mold.

[0014]

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view in a longitudinal direction of a spring mattress according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state of a padding in one embodiment of the present invention, which is stepwise cut away.

FIG. 3 is a partially cutaway plan view showing the uneven shape of the surface of the flexible foam within the surface quilt cushion (4) in one embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along the line B-B ′ of FIG.

5 is a cross-sectional view taken along the line AA ′ of the CC ′ portion of FIG.

[Explanation of symbols]

 (1) Spring unit (2) Spring seat (3) Intermediate cushion (4) Surface quilt cushion (5) Grape part (6) (6 ') Air hole (7) Center part (8) (8') Both side parts (9) Flexible foam (10) Sweat absorbent cotton (11) Outer fabric (12) Lining

Claims (3)

[Claims] 1. A spring receiving sheet (2), an intermediate cushion (3) and a surface quilt cushion (4) are superposed on at least upper and lower surfaces of a spring unit (1) formed by connecting a plurality of springs, In the one having a large number of air holes (6) (6 ') ... in the gusset part (5),
The surface quilt cushion (4) has unevenness on the surface, and the size of the unevenness is larger in the central portion (7) corresponding to the longitudinal direction of the mattress than in the both side portions (8) and (8 '). ) Is superposed with a sweat absorbent cotton (10) having a hygroscopic property about twice that of normal cotton, and is quilted between the outer material (11) and the lining (12). 2. The spring mattress according to claim 1, wherein the intermediate cushion (3) is a flexible foam having irregularities on its surface. 3. The spring mattress according to claim 1 or 2, wherein the spring receiving sheet (2) is made of a compression felt made of palm fiber having irregularities on its surface.