JP2009101112A - Refrigerant instrument and mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerant instrument which gives a good sense of fitting to a body and has an excellent cooling efficiency, and a mat which gives a good sense of touch to a body and has an excellent drying efficiency. <P>SOLUTION: A refrigerant instrument 10 is made from resins such as polyvinyl acetal resin and has a few hundred to a few thousand of columnar porous materials 12 and has a wrap 14 which wraps these porous materials 12 and is equipped with water penetration holes 20 which water penetrates. A string 16 is connected with both ends of the wrap 14. The string 16 is equipped with a clip 18. When the refrigerant instrument 10 is soaked with water and attached to a part of the body, the part is cooled by vaporization heat of water in the porous materials 12. In addition, the mat is made from resins such as polyvinyl acetal resin and has a plurality of columnar porous materials and has a wrap which wraps these porous materials and is equipped with water penetration holes which penetrates water. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cold insulator suitable for cooling a body part and a mat suitable for use around water.

  There is known a heat storage pack in which a large number of separated and independent granular heat storage materials are housed in an outer bag (Patent Document 1). The heat storage pack is for cooling the head, legs, arm shoulders, etc., and the heat storage material stored in the outer bag is a spherical particle.

Japanese Patent Laid-Open No. 9-173373

  However, when the heat storage pack is applied as it is to a cooler that absorbs moisture in the heat storage material inside the exterior bag and cools the body part by the heat of vaporization of the water, the heat storage material that is spherical particles has a surface area. Since it is small, the vaporization efficiency of water becomes poor. Moreover, since the heat storage materials which are spherical particles are easy to adhere to each other, when this heat storage pack is attached to the body, the heat storage pack excessively contacts the body and the tactile sensation becomes worse.

  The present invention has been made in view of these problems, and an object of the present invention is to provide a cold insulator excellent in a feeling of wearing on the body and cooling efficiency. Further, in the process of inventing the cold insulator, the cold insulator is found to apply the main structure of the cold insulator to the mat because it has a feeling of wearing on the body and the efficiency of vaporization of moisture, that is, the drying efficiency. . Therefore, an object of the present invention is to provide a mat excellent in the touch feeling of the body, particularly the sole, and the drying efficiency.

  An embodiment of the present invention is a cold insulator having a plurality of porous bodies made of a resin and having a columnar outer shape, and a package that encloses the plurality of porous bodies and provides water-permeable holes that allow water to pass therethrough. The porous body may have a rectangular parallelepiped outer shape. The length of the porous body is preferably at least 3 times the width of the porous body. Moreover, a porous body may be produced by cutting off the end material of the polyvinyl acetal resin sheet.

  Another aspect of the present invention is a mat made of resin and having a plurality of porous bodies having a columnar outer shape and a packaging body that encloses the plurality of porous bodies and provides water-permeable holes through which water passes.

  ADVANTAGE OF THE INVENTION According to this invention, the cold insulator excellent in the feeling of mounting | wearing to a body and cooling efficiency is obtained. In addition, according to the present invention, a mat having excellent body feel and drying efficiency can be obtained. That is, by using a porous body having a columnar outer shape, an appropriate space is formed in the package body without the porous bodies being in close contact with each other. This space improves the tactile sensation of the part that is kept cool by the cold insulator and the part that the mat touches, and promotes the vaporization of moisture. Moreover, according to the cold insulator using the material produced by cutting the end material of the resin sheet, the waste can be effectively used.

  FIG. 1 shows a cold insulator 10 according to an embodiment of the present invention. The cold insulator 10 includes a plurality of porous bodies 12, a packaging body 14, a string 16, and a stopper 18.

  The porous body 12 is made of resin and has a columnar outer shape. The columnar shape refers to an elongated shape such as a cylinder, a prism, or a rod. Examples of the resin that can be used as the material of the porous body 12 include polyvinyl acetal (hereinafter referred to as “PVA”), polyurethane, polyethylene, polyvinyl chloride, and the like. In the present embodiment, the porous body 12 is made of PVA resin. A porous material of PVA resin is preferable as a material for the porous body 12 of the cold insulator 10 because it is excellent in water absorption and water content and has appropriate flexibility when containing water.

  The package 14 includes a plurality of, for example, hundreds to thousands of porous bodies 12 and includes water-permeable holes 20 through which water passes. In FIG. 1, a part of the package 14 is not shown, but the porous body 12 existing therein is schematically shown (dotted circle part in FIG. 1). The quantity of the porous body 12 that the packaging body 14 wraps is appropriately adjusted according to the shape or size of the body part where the cold insulator 10 is used. Of course, if the quantity of the porous body 12 to be used becomes large, the packaging body 14 will also become large in connection with it.

  Examples of the material of the package 14 include polyester, nylon, cotton, wool, silk, hemp and the like. In the present embodiment, the package 14 is made of polyester. Polyester is strong, has excellent wear resistance, durability, chemical resistance, and oil resistance, is resistant to wrinkles, is less prone to mold and bacteria, is easy to dry, and feels good. Therefore, it is preferable that the package 14 is made of polyester.

  Strings 16 are connected to both ends of the package 14. The string 16 is made of an elastic material, for example, rubber. The string 16 may be made of a material that does not expand and contract. The string 16 may be a metal chain or a resin chain.

  A stopper 18 is attached to the string 16. If the stopper 18 is moved along the string 16 while pushing the protrusion provided on the stopper 18, the size of the region surrounded by the package 14 and the string 16 is appropriately set according to the body part to be kept cold. Can be adjusted. This stopper 18 is generally called a stopper.

  In addition, the stopper 18 may have a substantially land-track-shaped flat plate outer shape, and may be provided with holes at two locations. Such a stop is generally called a loop end. The loop end is attached to the cold insulator 10 after passing the string 16 from one side and then passing the string 16 from the other side toward the one side. The size of the region surrounded by the package 14 and the string 16 can be adjusted as appropriate by pushing or pulling the string 16 while holding the loop end.

  In the present invention, the cold insulator 10 is not provided with the stopper 18, and the cold insulator 10 is applied to the body part, and then the cold insulator 10 is tied to the part with the string 16, whereby the cold insulator 10 is attached to the body part. You may attach to.

  Next, as an example, a method for manufacturing the cold insulator 10 that keeps the forehead or neck cold will be described. First, the PVA resin sheet is cut into a columnar shape by a cutting machine. The cut PVA resin sheet is used as the porous body 12 of the cold insulator 10.

  By using the porous body 12 having a columnar outer shape, an appropriate space is formed in the package body 14 without the porous bodies 12 being in close contact with each other inside the package body 14. This space formed in the package 14 improves the feel of the part to be kept cold and promotes the vaporization of moisture.

  FIG. 2 shows an example of the outer shape of the porous body 12. The porous body 12 has a substantially rectangular shape with a bottom surface of about 1.5 mm × about 2 mm and a height of about 10 mm. Here, the length L of the porous body 12 corresponds to the height of the substantially rectangular parallelepiped and is about 10 mm. The width W of the porous body 12 corresponds to the length of the diagonal of the substantially rectangular shape which is the maximum length of the bottom surface of the substantially rectangular parallelepiped, and is about 2.5 mm. When the porous body 12 has a rectangular parallelepiped shape, the porous body 12 can be manufactured in large quantities by a general-purpose cutting machine, so that the cost of the cold insulator 10 can be reduced.

  When the outer shape of the porous body 12 is other than a rectangular parallelepiped, the longest portion of the porous body 12 is defined as the “length”, and the maximum length is defined as the “width” among all cross sections substantially orthogonal to the length direction. . Here, the length of the porous body 12 is preferably at least three times the width. By making the length of the porous body 12 at least three times its width, the tactile sensation of the part to be kept cold is further improved.

  FIG. 3 shows the end material 22 of the PVA resin sheet. This end material 22 is obtained by punching out a product portion 24 which is a product portion such as a mold cleaning sponge from a PVA resin sheet. Originally, the end material 22 is discarded. However, instead of a new PVA resin sheet, the end material 22 is cut to produce the porous body 12 and use it as a material for the cold insulator 10, whereby the waste can be effectively used.

  When the porous body 12 is prepared in this way, hundreds to thousands of the porous bodies 12 obtained by the above method are arranged on the polyester mesh fabric in which both ends of the string 16 to which the stopper 18 is attached are attached. . And after wrapping the porous body 12 with this cloth, the cloth is attached so that the porous body 12 does not jump out of the cloth. Thus, the cold insulator 10 having the porous body 12 therein and the package body 14 having a plate-like outer shape with a size of about 5 cm × about 20 cm × about 3 cm is obtained.

  Next, an example of how to use the cold insulator 10 will be described. First, the cold insulator 10 is immersed in water so that the porous body 12 contains sufficient water. Next, the cold insulator 10 is taken out of the water, and the package 14 is squeezed to such an extent that moisture does not drip or fall from the package 14. Then, after the cooler 10 is brought into close contact with a part of the body to be cooled, such as the forehead, neck, arm, leg, hand, foot, etc., the stopper 18 is moved so that the package 14 and the string 16 are surrounded. The size is appropriately adjusted, and the cold insulator 10 is fixed to this portion.

  This part is cooled by the heat of vaporization of moisture contained in the porous body 12 of the fixed cold insulator 10. Moreover, since the porous body 12 has a columnar outer shape, an appropriate space is formed in the packaging body 14 without excessive adhesion between the porous bodies 12 inside the packaging body 14, and the tactile sensation of the portion to be kept cold is improved. In addition to promoting moisture vaporization.

  When the water content of the porous body 12 evaporates to some extent and the cooling efficiency of the cold insulator 10 decreases, the cold insulator 10 is again immersed in water for use. Since the porous body 12 is made of a resin having excellent durability, the cold insulator 10 can be used repeatedly as described above.

  Next, the mat according to the embodiment of the present invention will be described. This mat is made of resin, and includes a plurality of porous bodies having a columnar outer shape, and a package that wraps around the plurality of porous bodies and provides water-permeable holes through which water passes. The porous body and the package can be the same as the cold insulator 10.

  That is, the porous body may have a rectangular parallelepiped outer shape. The length of the porous body is preferably at least 3 times the width of the porous body. Moreover, a porous body may be produced by cutting off the end material of the PVA resin sheet. The package is preferably made of polyester.

  By making the porous body and the packaging body of the mat according to the present embodiment the same porous body and packaging body as those of the cold insulator 10, a mat excellent in the touch feeling and drying efficiency of the body, particularly the soles can be obtained. Since the porous body has a columnar outer shape, an appropriate space is formed in the package without excessive adhesion between the porous bodies inside the package, and the touch of the body, particularly the sole, is improved. This is because vaporization of water, that is, drying of the porous body is promoted.

  The mat according to the present embodiment is used as a mat for use in the bath, that is, a bath mat, a mat for use in the kitchen, that is, a kitchen mat, a mat used in the toilet, that is, a mat for use in the bathroom, that is, a toilet mat such as a toilet mat. Is preferred. It can also be used in the bathroom.

  For example, when used as a bath mat, when a person in the family uses the mat, when the other person uses the mat, the mat is being dried, so that moisture on the soles of the other person is easily absorbed. In addition, other people can use the mat that has been dried, so that there is not much discomfort due to the mat containing moisture.

  Using the sample 1 which is a rectangular parallelepiped of PVA resin (3 mm × 3 mm × 9 mm) and the sample 2 which is a cube of PVA resin (one side is 3 mm) as the porous body 12, the space formed in the package 14 is evaluated. A test was conducted.

  First, 10 g of sample 1 and 10 g of sample 2 were placed in two 200 mL beakers. The beaker containing Sample 1 was filled with Sample 1 to a height of about 160 mL. On the other hand, the beaker containing Sample 2 was filled with Sample 2 to a height of about 120 mL.

  Next, 90 g of water was added to each of the two beakers. As a result, the sample 1 contained the sample 1 was increased to a height of about 210 mL. On the other hand, the sample 2 contained the sample 2 was increased to a height of about 160 mL.

  From this result, it was found that when the porous body has an elongated rectangular parallelepiped outer shape, the apparent volume is large both when drying and when absorbing moisture, compared to the case where the porous body has a cubic outer shape. Therefore, in the cold insulator using a porous body having an elongated rectangular parallelepiped outer shape, the space formed in the package becomes larger than in the case of the cold insulator using a porous body having a cubic outer shape, and moisture is more easily absorbed. It becomes easy to become. That is, it can be said that a cold insulator using a porous body having an elongated rectangular parallelepiped outer shape is superior in cooling efficiency to a cold insulator using a porous body having a cubic outer shape. Further, it can be said that a mat using a porous body having an elongated rectangular parallelepiped outer shape is superior in drying efficiency to a mat using a porous body having a cubic outer shape.

  In addition, in the cold insulator using a porous body having an elongated rectangular parallelepiped outer shape, the space formed in the package is larger than in the case of the cold insulator using a porous body having a cubic outer shape, and therefore, the part to be kept cold Bring improved touch. This improvement in tactile sensation is not affected by the moisture content of the cold insulator. That is, a cold insulator using a porous body having an outer shape of an elongated rectangular parallelepiped has an excellent feeling of wearing on the body even when it is dry or absorbs moisture. In addition, a mat using a porous body having an elongated rectangular parallelepiped outer shape is excellent in the tactile sensation of the body regardless of whether it is dry or absorbs moisture.

  As described above, the cooler using a porous body having a columnar shape, that is, an elongated shape, has a feeling of wearing on the body and cooling efficiency compared to a cooler using a porous body having an outer shape such as a cube or a sphere. Is considered excellent. In addition, a mat using a porous body having a columnar shape, that is, an elongated shape, has a better tactile feel and drying efficiency than a mat using a porous body having an outer shape such as a cube or a sphere. Conceivable.

It is an external view of the cold insulator which concerns on embodiment of this invention. 1 is an external view of a porous body according to an embodiment of the present invention. It is an external view of the end material of a PVA resin sheet.

Explanation of symbols

  10 cold insulators, 12 porous bodies, 14 packaging bodies, 16 strings, 18 fasteners, 20 water-permeable holes, 22 end materials, 24 product parts

Claims (5)

A plurality of porous bodies made of resin and having a columnar outer shape;
A package that encloses the plurality of porous bodies and provides water-permeable holes through which water passes;
With cold insulation.   The cold insulator according to claim 1, wherein the porous body has a rectangular parallelepiped outer shape.   The cold insulator according to claim 1 or 2, wherein the length of the porous body is at least three times the width of the porous body.   The cold insulator according to any one of claims 1 to 3, wherein the porous body is produced by cutting an end material of a polyvinyl acetal resin sheet. A plurality of porous bodies made of resin and having a columnar outer shape;
A package that encloses the plurality of porous bodies and provides water-permeable holes through which water passes;
With mat.

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