JP3186856U - Folding mattress - Google Patents

Abstract

The present invention provides a folding mattress that is optimal for use as a disaster storage and can be folded and stored.
A rectangular mattress having a constant thickness and equally divided into eight. On the long-side center line of the mattress, continuous cuts and cuts are formed. Three pairs of cuts are formed that extend in the direction perpendicular to each other from the center line to reach the long side edge and equally divide the mattress into eight. It can be folded into eight by folding along the cut and cut.
[Selection] Figure 4

Description

The present invention relates to a mattress that can be folded and stored in a small size, and more particularly, relates to a folding mattress that is optimal for use as a disaster storage.

Conventionally, as a folding mattress, a tri-fold or a four-fold mattress is known. For example, it is composed of four mattress blocks, which are flat rectangles and are divided into four equal parts by two orthogonal cross sections, and the four mattress blocks are arranged in such a way that they form the original mattress shape with a rectangular plane. The mattress blocks on both sides are detachably connected to each other at one boundary surface, and the mattress blocks on both sides are unfolded at the boundary surface that is an extension of the detachable boundary surface. The first surfaces are connected so that they can be brought into contact with each other and folded, and the two surfaces that are perpendicular to the detachable boundary surface are connected so that the second surfaces in the expanded state can be brought into contact with each other and folded. A four-fold mattress is disclosed (see Patent Document 1).

The air mattress is composed of a pillow part made up of an independent air chamber and a body part made up of at least two main body air chambers that are divided into comb-shaped engagements, and the pillow is formed by pressure fluctuations in the main body part. An air mattress is disclosed in which, even if an air leak occurs in one chamber of the main body without causing the portion to shake, the other chamber is in an expanded state and can be used continuously as a mattress (see Patent Document 2). .)

Japanese Utility Model Publication No. 62-55956 Japanese Patent Laid-Open No. 10-201576

Although the four-fold mattress described in Patent Document 1 can be folded to a smaller volume than a commonly used three-fold mattress, a large space is required to store a large amount of mattress for disaster storage. Become. In addition, the air mattress described in Patent Document 2 is divided into two chambers, so that even if an air leak occurs in one chamber, the other chamber is in a bulging state and can continue to be used as a mattress. There is. However, in use, it is necessary to inject air into the two air inlets by using a device such as an air container. For this reason, there is a problem that not only a dedicated instrument is required but also it takes time to inject air.

The present invention has been devised to solve these problems, and an object thereof is to provide an optimal folding mattress for use as a disaster reserve.

The folding mattress according to claim 1 of the present invention is a rectangular mattress having a constant thickness and equally divided into eight, and continuous cutting and incision is performed on the center line on the long side of the mattress. Is formed. Three pairs of cuts are formed that extend in the direction perpendicular to each other from the center line to reach both side edges on the long side, and equally divide the mattress into eight. A folding mattress that can be folded into eight by folding along the cut and the cut.

The center line on the long side of the mattress is cut over three-quarters of the total length. The distance from the front end of the cut portion to the other short side edge (one-fourth of the total length on the long side center line) is cut by a predetermined depth from the surface side in the thickness direction of the mattress. Yes.

Also, three pairs of cuts are formed extending from the center line in the direction perpendicular to each other and reaching both edges on the long side. The cuts are formed in the thickness direction of the mattress, and are cut into a predetermined depth on the back side, the front side, and the back side in order from the cut side formed on the center line on the long side. ing. If it forms in this way, it can fold in eight easily by folding along the said cutting | disconnection and incision. Moreover, it can be easily developed into a sheet shape by the reverse procedure.

In the folding mattress according to claim 2 of the present invention, the mattress is formed from a web obtained by mixing polyester fiber or polyester fiber with another synthetic fiber, and the web is repeatedly folded in the thickness direction in a wavy shape. The vertical fiber array nonwoven fabric. Sheets are attached to both sides or one side of the wave crest surface of the longitudinal fiber array nonwoven fabric to form a skin material. The skin material is preferably a sheet material such as a porous and air-permeable membrane material, film, woven fabric, or non-woven fabric. From the viewpoint of low cost, a spunbonded nonwoven fabric is more preferable.

With this configuration, the web is formed by repeatedly folding in the thickness direction of the mattress, so that the web becomes bulky and lightweight, and the longitudinal direction is excellent in resilience, durability, uniformity, easy moldability and flexibility. A fiber array nonwoven fabric can be obtained. Thereby, long-term storage is possible for disaster storage, and it can be provided as an optimal folding mattress when used.

In the folding mattress according to claim 3 of the present invention, the skin material is a fiber sheet. Since the fiber sheet has good air permeability, it is suitable for a mattress skin material.

In the folding mattress according to claim 4 of the present invention, the skin material is a spunbonded nonwoven fabric. Spunbond is one of the manufacturing methods for manufacturing a nonwoven fabric, and since it is a fiber sheet, air permeability is good, and since it is not woven, there is a feature such as no hair loss. For this reason, it is optimal as a skin material for mattresses.

The folding mattress according to claim 5 of the present invention is vacuum-packed after the mattress is inserted into a dedicated compression bag. With this configuration, the capacity before compression can be reduced to 70% or less, and a large amount of folding mattresses can be stored even in a small space.

The folding mattress of the present invention has a cut and a cut formed on the center line on the long side, and three pairs of cuts extending from the center line in a direction perpendicular to each other to reach both edges on the long side. ing. Thereby, if it folds in the predetermined procedure along the said cutting | disconnection and incision, it can be easily folded in eight, and can be easily expand | deployed in the sheet form by the reverse procedure to the above.

The mattress is formed of a polyester fiber or a nonwoven fabric obtained by mixing polyester fibers with other synthetic fibers, and the nonwoven fabric is repeatedly folded in the thickness direction to form a longitudinal fiber array nonwoven fabric. Sheets are attached to both or one side of the wave crest surface of the array nonwoven fabric to form a skin material. As a result, the longitudinal fiber array nonwoven fabric is formed by repeatedly folding in the thickness direction of the mattress in a wavy shape, so that it is bulky and lightweight and has excellent resilience, durability, uniformity, easy moldability and flexibility. A mattress can be provided.

The skin material is a fiber sheet. In addition, since it is a spunbonded nonwoven fabric, it has good air permeability and no hair loss, and is optimal as a mattress skin material. Further, since the mattress is vacuum-packed after being inserted into a dedicated compression bag, the capacity before compression can be reduced to 70% or less, and a large amount of folding mattresses can be stored even in a small space. can do.

It is the perspective view seen from the surface side which shows an example of embodiment of this invention. It is the perspective view seen from the back surface side which shows an example of embodiment of this invention. It is a fragmentary sectional view of the folding mattress of this invention, (a) is what the skin material was stuck on both surfaces, (b) is what the skin material was stuck on one side. It is explanatory drawing which shows an example of the expansion | deployment procedure of the folding mattress of this invention. It is a perspective view which shows the state which vacuum-packed the mattress of this invention.

Hereinafter, the folding mattress of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an example of the embodiment as viewed from the front side, and FIG. 2 is a perspective view of FIG. 1 as viewed from the back side. 3A and 3B are partial cross-sectional views of the folding mattress of the present invention, in which FIG. 3A shows a case where a skin material is stuck on both sides, and FIG. 3B shows a case where a skin material is stuck on one side.

1 and 2, the folding mattress 1 is a rectangular mattress having a constant thickness, and is made of a fiber sheet on the both sides or one side of the longitudinal fiber array nonwoven fabrics 2a and 2b, more preferably a spunbond nonwoven fabric. They are affixed as 3a and 3b. The folding mattress 1 is equally divided into 8 blocks by a cut 4 and cuts 5, 6, 7 and 8. On the center line on the long side of the folding mattress 1, it is cut 4 over a quarter of the entire length, and between the tip of the cut portion and the other short side edge (the total length on the center line on the long side). 1/4) is cut 5 by a predetermined depth from the surface side in the thickness direction of the folding mattress 1. The depth of the notch 5 is preferably 1/3 to 9/10 of the thickness of the folding mattress 1, more preferably 1/2 to 3/4. For example, when the thickness of the folding mattress 1 is 15 mm, the depth of the cut 5 is 10 to 11 mm. Note that the depth of the cut 5 can be changed as appropriate in accordance with the thickness of the folding mattress 1.

Further, three pairs of cuts 6, 7, and 8 are formed extending from the center line on the long side of the folding mattress 1 in a direction perpendicular to each other and reaching both edges on the long side. The cuts 6, 7, and 8 are formed in the thickness direction of the folding mattress 1, and are cut into the back surface, the front surface, and the back surface by a predetermined depth sequentially from the cut 5 side. . This predetermined depth is the same as the depth of the notch 5 described above. Note that the depth of the cut 5 may be changed depending on the cut location.

In FIG. 2, the center line on the long side of the folding mattress 1 is continuously cut 4 over three quarters of the total length. Accordingly, when the folding mattress 1 is unfolded, the A portion side and the B portion side are separated (opened), and therefore it is desirable to stick the adhesive tape 9 (or an equivalent product) at the time of use.

FIG. 3 is a partial cross-sectional view of the folding mattress of the present invention, in which (a) shows a skin material stuck on both sides, and (b) shows a skin material stuck on one side. In FIG. 3, the longitudinal fiber array nonwoven fabric 2a is a polyester fiber or a web obtained by mixing polyester fibers with other synthetic fibers, and the web is repeatedly folded in the thickness direction to form a longitudinal fiber array nonwoven fabric 2a.

Because this fiber is in the vertical direction, it can be combined with high-performance raw cotton (Elk (registered trademark) raw cotton, Solotex (registered trademark), etc.) to provide high resilience, bulkiness, light weight, high breathability, etc. It has very excellent characteristics as a cushioning material, is easy to bend, and has features such as easy moldability. Further, the sound absorption performance can be adjusted by combining with the skin material 3a or by pressing. The skin material 3a is a polyester fiber, and most preferably a polyethylene terephthalate (PET) fiber. In addition, you may comprise the spun bond nonwoven fabric of other synthetic fibers, such as polyamide, a polypropylene, polyphenylene sulfide.

FIG. 4 is an explanatory view showing an example of a folding mattress unfolding procedure according to the present invention. (A) has shown the state by which the folding mattress was folded in eight, and the upper surface of the uppermost layer block is a back surface side. In (b), when the upper four blocks are expanded in the direction of the arrow, the four-fold state is obtained. The upper surface of the upper two blocks is the back surface side. In (c), the upper two blocks are expanded in the direction of the arrow. The upper surface of the upper block is the surface side. In (d), when the lowermost block is pulled, the second layer and the third layer become ridges. The upper surface of each layer is the surface side. In (e), when it is further pulled out in the direction of the arrow, the folding mattress 1 is developed into a sheet shape. The upper surface of each layer is all on the surface side. In addition, it returns to the state folded in eight by said reverse procedure. Note that this procedure is an example, and the procedure (e) can be developed by another procedure.

FIG. 5 is a perspective view showing a state in which the folding mattress of the present invention is vacuum packed 10. For example, as shown in FIG. 4A, one dimension when the folding mattress 1 is folded is 50 cm wide × 35 cm long × 12 cm high. When this is inserted into a dedicated compression bag and compressed, as shown in FIG. 5, the width becomes 55 cm × length 40 cm × height 3 cm, and the capacity before compression can be reduced by about 70%. Thereby, a large amount of folding mattresses can be stored even in a small space.

Next, after applying polyethylene powder in an amount of 20 g / m ^{2 to} a spunbonded nonwoven fabric manufactured by Toyobo Co., Ltd. (basis weight 15 g / m ² , thickness 0.1 mm), the spunbonded nonwoven fabric and Example 1 described later were obtained. A longitudinal fiber array non-woven fabric was superposed on each other and bonded together between belts heated up and down to obtain a mattress base material having a total thickness of 15 mm. Next, it punched into the shape shown in FIG. 1 with the cutting blade (Thomson blade). The obtained folding mattress is folded in the reverse procedure (e → d → c → b → a) as shown in FIG. 4 and placed in a three-sided bag made of polyamide, aluminum foil, polyethylene, and vacuumed. The pressure was reduced to 10 Pa or less in the chamber and vacuum sealing was performed, and the folding mattress was vacuum packed.

Next, the process of vacuum packaging the folding mattress will be described. The folding mattress is placed in a gas barrier packaging material, the inside of the packaging material is decompressed, sealed and vacuum packaged. The packaging material is not particularly limited as long as it has gas barrier properties. For example, a laminate material composed of a heat welding layer, a gas barrier layer, and a protective layer can be given as an example. Examples of the heat welding layer include a polyethylene film, a polypropylene film, a polyacrylonitrile film, and a polyethylene terephthalate film. Examples of the gas barrier layer include a metal foil or a metal vapor deposition film composed of aluminum, iron, copper, nickel, and alloys thereof. A nylon film etc. are mentioned as a protective layer. The inside of the packaging material is preferably decompressed to 10 Pa or less, more preferably 1 to 10 Pa. If the pressure inside the packaging material exceeds 10 Pa, the sufficient compression effect and procedure cannot be reduced.

About the longitudinal fiber arrangement nonwoven fabric used for the folding mattress of this invention, and the comparison goods, the following test samples were created and the result of having performed various tests is shown below.

[Example 1] Teijin's polyester 6.6 dtex, 51 mm (A) and Teijin's product name "Elk" (polyester elastomer) 4 dtex, 64 mm (B) are prepared as binder fibers, and A: B After blending at a weight ratio of 70:30, pass through the roller card, crosslay, and roller card in this order, and then use the Australian CTS manufacturing facility to fold the web and arrange most of the fibers in the thickness direction. After that, a longitudinal fiber array nonwoven fabric was obtained by heat-bonding between the fibers in a heat treatment furnace at a temperature of 200 ° C. The obtained longitudinal fiber array nonwoven fabric had a thickness of 20 mm and a density of 30 kg / m ³ .

[Comparative Example 1] As in Example 1, Teijin Ltd. polyester 6.6 dtex, 51 mm (A), and Teijin Ltd. trade name "Elk" (polyester elastomer) 4 dtex, 64 mm (B) as a binder fiber. After preparing and blending at a weight ratio of A: B = 70: 30, passing in the order of roller card, cross lay, roller card, and superposing the web with a normal cross layer, the temperature is 200 while regulating the thickness. A fiber cushion material was obtained by being pushed into a hot air suction heat treatment machine set to ° C. The obtained hard cotton fiber cushion material had a thickness of 20 mm and a density of 30 kg / m ³ .

[Comparative Example 2] The following test was performed using a commercially available urethane foam: UEM-35G density 35 kg / m ³ and thickness 20 mm manufactured by Inoac Corporation.

[Test Method] [Thickness (mm)] Measured according to JIS K-6400. [Density (kg / m ³ )] The density (kg / m ³ ) was determined by the following formula. Density (kg / m ³ ) = weight per unit area (g / m ² ) / fiber structure thickness (mm) [Compression hardness] Measured according to JIS K6401. In addition, a numerical value is a value at the time of 25% compression of thickness. [Pressure dispersibility] Using a pressure distribution measuring apparatus FSA manufactured by Irisco, analysis was performed with a video image. [Load-Displacement Curve] A & D Corporation, TENSILON was used. [Compressive Residual Strain (Strong Compression)] According to the method described in JIS K-6401, an operation of compressing for 10 seconds with a load of 800 g / cm ² and then gradually weighing and leaving for 5 seconds is repeated 360 times for 24 hours. Later, the thickness was measured again. And compression residual strain (%) was computed by the following formula. Compression residual strain (%) = (t ₀ −t ₁ ) / t ₀ × 100 Here, t ₀ is the thickness (mm) of the first test piece, and t ₁ is the thickness (mm) of the test piece after the test. It is.

The test results of the samples of Example 1 and Comparative Examples 1 and 2 are as follows.

[25% Compression Hardness] As a result of performing a 25% compression hardness test on each sample of Example 1 and Comparative Examples 1 and 2, Comparative Example 1 was 140 N, Example 1 was 200 N, and Comparative Example 2 was 190 N. there were. As a result, both Example 1 and Comparative Examples 1 and 2 are good mattresses.

[Pressure Dispersion Dispersion] When comparing the pressure resistance distribution when the example is placed on the chair and seated and the pressure resistance distribution when the comparative example 1 is seated and seated, the first example is the comparative example. The pressure distribution is superior to 1. As a result, Example 1 is equivalent to and superior to urethane, and is good as a mattress.

[Load-Displacement Curve] For each sample of Example 1 and Comparative Examples 1 and 2, a load-displacement curve was prepared by TENSILON. As a result, since Example 1 has the fibers arranged in the thickness direction, the initial displacement is close to that of Comparative Example 2, which is favorable as a mattress.

[Compressive residual strain (strong compression)] For each sample of Example 1 and Comparative Examples 1 and 2, constant load repeated compression was performed 0.8 kg / cm 2 × 360 times. As a result, the residual strain of Comparative Example 1 was 15%. Example 1 was 10%, and Comparative Example 2 was 1%. As a result, Example 1 is good, Comparative Example 1 is inferior, and Comparative Example 2 is excellent.

[Breathability] Each sample of Example 1 and Comparative Examples 1 and 2 was evaluated for breathability. As a result of installing an anemometer on the upper part of the sample and sucking with a suction fan from the lower part, Comparative Example 2 has no air permeability, Example 1 has a suction fan frequency of 30 Hz and 4.6 m / s, and Example 1 has a suction fan. It was 6.9 m / s at a frequency of 30 Hz. As a result, Example 1 is excellent, Comparative Example 1 is good, and Comparative Example 2 is very inferior.

[Flexibility] For each sample of Example 1 and Comparative Examples 1 and 2, the repulsive stress at the time of 25 cm indentation was measured. As a result of the flexibility test, Example 1 was 3N, Comparative Example 1 was 10N, and Comparative Example 2 was 12N. As a result, Example 1 is excellent and Comparative Examples 1 and 2 are inferior.

[Safety (Toxic Gas)] When each sample of Example 1 and Comparative Examples 1 and 2 was subjected to a combustion test based on JIS K-2541, HCN and H ₂ S were used for Example 1 and Comparative Example 1. , SOx, NOx, and HCL were not generated, and some generation of CO and CO2 was observed. In Comparative Example 2, generation of hydrogen cyanide was observed. As a result, Example 1 and Comparative Example 1 are good, but Comparative Example 2 is very poor.

[Slightly yellowing] When the samples of Example 1 and Comparative Examples 1 and 2 were irradiated with UV for 8 hours, Example 1 and Comparative Example 1 did not change color, but Comparative Example 2 turned yellow. As a result, Example 1 and Comparative Example 1 are excellent, but Comparative Example 2 is very inferior.

Table 1 shows the results of physical properties comparison between Example 1 and Comparative Examples 1 and 2 based on the above various test results. The meanings of symbols in Table 1 are as follows. ◎ Excellent. ○ Good. △ Inferior. × Very inferior.

The folding mattress of the present invention is optimal for disaster storage in countries, local governments, and companies, etc., but it can be folded smaller than conventional products, and it has excellent resilience, durability, uniformity, easy moldability and flexibility. Since it is excellent, it can be used for a wide range of purposes such as general household use and outdoor use such as camping.

DESCRIPTION OF SYMBOLS 1 Folding mattress 2a, 2b Longitudinal fiber arrangement nonwoven fabric 3a, 3b Skin material 4 Cutting 5, 6, 7, 8 Cutting 9 Adhesive tape 10 Vacuum pack A A part side B B part side

Claims (5)

A rectangular mattress that has a constant thickness and is divided into eight equal parts, and a continuous cut and cut are formed on the center line on the long side of the mattress, and the center line extends in a direction perpendicular to each other. The folding mattress is characterized in that it reaches the long side edge and is formed with three pairs of cuts that equally divide the mattress into eight, and is folded into eight by folding along the cuts and cuts. . The mattress is made of a non-woven fabric obtained by mixing polyester fiber or other synthetic fibers with a polyester fiber, and the non-woven fabric is repeatedly folded in the thickness direction to form a longitudinal fiber array non-woven fabric on both sides of the crest surface of the substrate. Alternatively, the folding mattress according to claim 1, wherein a sheet is attached to one side to form a skin material. The folding mattress according to claim 2, wherein the skin material is a fiber sheet. The folding mattress according to claim 2 or 3, wherein the skin material is a spunbonded nonwoven fabric. The folding mattress according to claim 1, wherein a plurality of the mattresses are vacuum-packed after being inserted into a dedicated compression bag.

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