JP2005144036A - Cool feeling mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cool down a specified area of the human body simply and effectively. <P>SOLUTION: In the cool feeling mat 1 comprising a cold insulating pack 20 and a flexible cover 10 which can store the cold insulating pack 20 therein, the cool feeling mat 1 with the cold insulating pack 20 in a flat shape having a flat bag in which a mixture of cold insulating material and inorganic fine particles are filled and sealed, and the cover 11 having a flat shape with plural storages 10a in which the cold insulating pack 20 can be stored is used. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cooling sensation mat that houses therein a cold pack in which a refrigerant is sealed.

When a human or an animal sits down or lies down, the contact surface between the body and the seating surface or the floor surface becomes stuffy due to body temperature or moisture emitted from the body, causing discomfort.
In particular, in an environment where the discomfort index is high, such as in summer, the discomfort becomes noticeable in addition to the fact that the temperature of the seating surface that touches the body is also high.
Also, if wheelchair users or stroller users try to go out in the summer, they will be affected by asphalt reflections and hot air drifting near the ground surface from the seating and rear surfaces, exceeding the discomfort. If you sweat too much, you may become dehydrated, and you may suffer from diseases such as sunstroke and heatstroke.

In such a case, it is possible to obtain coolness by freezing a cold pack in which a gel-like cold insulating material is sealed in advance using a freezer and applying the frozen cold pack to the body.
However, such a cold pack becomes hard due to freezing and the adhesion of the body is deteriorated, and the temperature is too low to cause frostbite. For this reason, for example, it is not suitable for using it in a cushion cover or a pillow cover.
In addition, since the temperature of the frozen pack is too low, it is easy for condensation to form on its surface during use, and when this pack is stored in a cover or the like, it becomes damp during use and becomes unusable. There was a problem that the pleasant feeling increased and it was not hygienic.

Such a freezing type cold insulation pack has been conventionally used to cool a heat affected part or a heat affected part, and the applicants of the present application have proposed Japanese Patent Application No. 2002-355442 to solve the above problem. The technology described in is proposed.
The body can be cooled very well by using the cold insulation bag described in the application of Japanese Patent Application No. 2002-355442 (hereinafter referred to as a cold insulation pack). This cold pack is filled and sealed with a mixture of a cold insulation material and inorganic fine particles, so that it is not necessary to freeze in a freezer before use and the flexibility of the cold pack itself is not lost. By applying this cold pack to a relatively narrow area, a desired area such as the head, neck, and joint can be cooled.

  However, when this cold pack is intended to cool a relatively wide area such as the entire back, the entire back of the head, the entire chest, and the entire buttocks, the cold pack itself must be enlarged. The mixture in the cold pack is always fluid, so even if the cold pack is simply enlarged, if the cold pack is placed vertically or stored in a cushion cover or pillow cover, There is a problem that the mixture is biased by gravity or pushed away by the weight of the user and the like and does not effectively act on the user's body.

This problem can be solved by increasing the filling pressure of the mixture that is filled and sealed in the cold pack, or by creating a partition to prevent unevenness in the cold pack, but it becomes heavy and difficult to handle. And there are problems such as high manufacturing costs, which are not realistic.
Japanese Patent Application No. 2002-355442

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cooling mat that can cool a predetermined region of the body simply and effectively.

The cooling sensation mat of the present invention is a cooling sensation mat composed of a refrigeration pack and a flexible cover that can accommodate the refrigeration pack. The refrigeration pack is a flat bag body filled with a mixture of a refrigeration material and inorganic fine particles and sealed. The cover has a flat shape, and the cover has a flat shape having a plurality of storage chambers in which the cold pack can be stored.
The inorganic fine particles are preferably at least one inorganic fine particle selected from anhydrous ultrafine silica, hydrous silicate fine particles, and alumina ultrafine particles.

Since the present invention is configured as described above, when the present invention is used, it is possible to efficiently cool a wide area using a cold pack that can be manufactured easily and at low cost.
In particular, when this cooling sensation mat is used for a cushion, a pillow, a mattress, a cushion for a wheelchair or a backrest pad, a mattress pad for a baby stroller or a child seat, the user's discomfort due to hot air or stuffiness can be eliminated.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a plan view of an embodiment of a cooling sensation mat according to the present invention, and FIG. 2 is a plan view showing a stored state of a cold pack of the cooling sensation mat shown in FIG.
In the figure, 1 is a cooling mat, 10 is a cover, 10a is a storage chamber, 11 is a fastener fitting, and 20 is a cold pack.

First, FIG. 1 will be described.
The cover 10 is formed by overlapping two rectangular woven fabrics and sewing them along a pair of edges.
In addition, sewing is performed along a straight line connecting the centers of the stitched sides and a straight line passing through the position where the straight line is divided into approximately three equal parts and intersecting the straight line at right angles. It is divided into two rows and three stages of storage chambers 10a.
One pair of fasteners are attached to the other pair of edges of the cover 10, and the opening of the storage chamber 10a can be opened and closed by sliding the metal fitting 11.
In addition, although this metal fitting 11 is pulled out to the outer side of the cover 10, at the time of use, the metal fitting 11 whole is hidden between the edges of a cover.
Moreover, the broken line in FIG. 1 is a seam of sewing and fastener attachment.

Next, FIG. 2 will be described.
As described above, the inside of the cover 10 is divided into six chambers by sewing, but as shown in FIG. 2, the cold insulation packs 20 are accommodated in these interiors.
In addition, the cold pack 20 is shown with the dashed-dotted line in FIG.
The cold pack 20 is a flat and substantially rectangular shape, and a mixture of a cold insulating material and inorganic fine particles is filled and sealed in a synthetic resin bag.
The material of the synthetic resin bag may be any material having flexibility. Preferred examples include nylon / polyethylene laminate sheets, ethylene / vinyl acetate copolymers, and ethylene / methyl methacrylate copolymers.

Of the mixture of the cold insulation material and inorganic fine particles filled and sealed in the cold insulation pack 20, the cold insulation material is a sodium sulfate hydrate (水 和 芒) that can be set at a freezing point between 0 ° C and 32 ° C, which is called a latent heat storage material. Acids) and lithium chlorate hydrates are desirable.
The freezing point can be lowered by adding sodium chloride or ammonium chloride thereto.
Furthermore, by adding an alcohol such as ethyl alcohol or propyl alcohol that does not dissolve the hydrate, when the temperature of the solution is lowered, the hydrate crystals are easily formed without causing the solution to overcool. Precipitates.

Examples of the cold insulating material include water having a freezing point below 0 ° C. and water in which a substance that dissolves in water and causes a melting point drop is dissolved. Specific examples include water in which salts such as potassium chloride, ammonium chloride, and sodium chloride, and compounds such as urea are dissolved.
Examples of the inorganic fine particles in the mixture include anhydrous ultrafine silica, hydrous silicate fine particles, and alumina ultrafine particles. One of these can be used alone, or a plurality of types can be used in combination.

When using the above cooling sensation mat, the fastener metal fittings 11 of the cover 10 are slid to open the storage chambers 10a, one cold pack 20 is inserted into each storage chamber 10a, and the metal fittings 11 are slid. The opening of the storage chamber 10a is closed.
For example, when this is placed on the seat surface of a chair and sits on it, it gradually cools from the back side of the thigh to the wide area of the buttocks, and the cold feeling lasts for several hours.
When you no longer feel the sensation of coolness, stop using it and leave it for a while until crystallization in the mixture proceeds, or take out the cold pack 20 from the cover 10 and place it in a refrigerator or freezer to promote crystallization and freeze the mixture It can be taken out and reused.

In addition, this invention is not limited to said Example.
For example, the material of the cover may be any non-woven fabric, synthetic resin film, urethane sheet, etc., as long as it is sheet-like and flexible, and its shape, the number of filling chambers, The arrangement and the like can be freely changed depending on the usage form.
In addition, the shape, size, and shape of the cold pack can be freely changed within the range of size and shape in which the mixture of the contents is easily biased.
In the case of having three or more storage chambers, the cooling sensation mat may be stored in at least a plurality of storage chambers, and the cold packs may not be stored in some of the remaining storage chambers.

The storage chamber may be formed in any form as long as each cold pack can be held in a predetermined position within the cover, and the storage chambers may partially communicate with each other. Absent.
In the above embodiment, the opening of the storage chamber can be closed by the fastener, but it may be closed by other locking means such as a planar fastener or a hook.
In this case, an end edge on the opening side of the storage chamber may be folded back, and a sheet-like fastener or the like that can be respectively locked to a region that overlaps and abuts by folding back may be provided.

In addition, for example, in the above embodiment, the opening of each storage chamber is formed along a seam in the center of the cooling sensation mat and along a straight line passing through the approximate center of the storage chamber in parallel with the short side of each storage chamber. If the cooling sensation mat is lifted by providing it and further devising the shape of the opening as necessary, the fastener may not be used if the cold pack does not fall out of the opening.
Further, the purpose of use is not limited to the cushion, and for example, the cushion may be used for a pillow, a mat, a cushion for a wheelchair or a backrest pad, a pad for a stroller or a child seat, and the like.
Furthermore, the purpose of use is not limited to humans, and for example, it may be used as a mat for pets such as dogs and cats.
Further, a plurality of cooling sensation mats may be used in combination, such as laying a plurality of cooling sensation mats on bedding.

To 800 g of water, 320 g of sodium sulfate was added and dissolved with stirring at 28 degrees. When the solution became transparent, 40 g of anhydrous ultrafine silica was added and stirring was continued. At that time, 80 g of ethyl alcohol was added and stirred rapidly to form a rectangular synthetic resin bag with outer dimensions of 116 mm in length and 195 mm in width. 6 pieces of cold storage packs having a weight of 185 g were prepared.
The cover was the same as that shown in FIG. 1, and the cover had a length of 370 mm and a width of 450 mm, and the storage chamber had a length of 120 mm and a width of 210 mm.
One cold pack was stored in each storage chamber of the cover and left in a room at room temperature of 18 ° C.

When the state of the contents was confirmed by crushing the cold pack from the top of the cover after 3 hours, precipitation of fine crystals could be confirmed in the mixture, and the mixture itself was viscous and gelled.
The flexibility and feel of the cold pack from the top of the cover were good.
When this cooling sensation mat was laid on the seat surface of the chair and sat on it, a chilly sensation was immediately felt on the entire contact surface with the cooling sensation mat, and the cooling effect lasted for about 5 hours.
Thus, it has been found that the use of the cooling sensation mat according to the present invention can effectively cool a wide area.

  The cooling sensation mat according to the present invention can efficiently cool a predetermined region of the body over a long period of time.

It is a top view of one Example of the cool feeling mat concerning this invention. It is a top view which shows the accommodation state of the cool pack of the cooling mat shown in FIG.

Explanation of symbols

1 Cooling Mat 10 Cover 10a Storage Room 11 Fastener Bracket 20 Cooling Pack

Claims (2)

  In the cooling sensation mat comprising a cold insulation pack and a flexible cover capable of accommodating the cold preservation pack, the cold insulation pack has a flat shape in which a flat bag body is filled and sealed with a mixture of a cold insulation material and inorganic fine particles, and is covered. Has a flat shape having a plurality of storage chambers in which a cold pack can be stored. The cooling sensation mat according to claim 1, wherein the inorganic fine particles are at least one inorganic fine particle selected from anhydrous ultrafine silica, hydrous silicate fine particles, and alumina ultrafine particles.

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