JP2007319491A - Heat insulating tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating tool which can be repeatedly used without continuously using electric and fuel energy and can be safely used for human shoulders and knees for example. <P>SOLUTION: The heat insulating tool 1 is formed of a wrapping material 2 and a heat accumulation material 3 wrapped in the wrapping material 2. A fabric is used for the wrapping material 2 and azuki beans having a heat accumulating property are used for the heat accumulating material 3. Since the heat accumulating material 3 generates heat by being irradiated with microwaves and can accumulate the heat, the heat insulating tool 1 can be repeatedly used. Even when the heat insulating tool 1 is used for human shoulders, knees or the like, since the fabric and the azuki beans are gas permeable and the azuki beans point contact a human skin through the fabric, the human skin does not get sweaty and there is no danger of causing a low-temperature burn. Consequently, the tool can be safely used. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heat insulator that can be used repeatedly without continuously using energy such as electricity or fuel.

  An example of a warmer that can warm a person's shoulders, knees, and the like without continuously using energy such as electricity or fuel is a warmer. Recently, disposable chemical warmers utilizing the reaction of iron powder have been used as the warmers, but there is a problem that they cannot be reused.

  Therefore, conventionally, as a heat-retaining tool that can be used repeatedly, for example, a heat-retaining tool configured by encapsulating a gel-like heat storage material inside a bag-like container made of plastic or resin film has been proposed (Patent Document 1). In this heat retaining device, for example, a gel-like heat storage material is heated by a microwave oven, and can warm a specific place. Even when the gel-like heat storage material finishes radiating and returns to room temperature, the heat storage material can be heated again by the microwave oven, and the heat insulator can be used repeatedly.

JP 2002-113032 A

  However, when this conventional warming device is used on a person's shoulder, knee, etc., in a warming device composed of a plastic bag-like container and a gel-like heat storage material, the breathability is poor because it is in close contact with the human skin, If worn in the same place for a long time, the human skin may be stuffy or cause low-temperature burns. In addition, in the unlikely event that the bag-like container is broken and the gel-like heat storage material is scattered, there is a risk of fouling the surroundings.

  The present invention has been made in view of such points, and can be used repeatedly without continuously using energy from electricity or fuel, for example, when used on a human shoulder, knee, etc. But it aims to provide a warmer that can be used safely.

  In order to achieve the above object, in the present invention, a heat storage material having a heat storage effect and a packaging material that encloses the heat storage material, and a heat insulator that can be used repeatedly, wherein red beans are used as the heat storage material. , Using a cloth as the packaging material.

  As a result of investigation by the inventors, it was found that red beans have a good heat storage effect. Therefore, the heat retention effect can be obtained for a long time by heating the red beans. In addition, even when the heat is released and the temperature returns to room temperature, the heat storage effect can be obtained again by heating, so that it can be used repeatedly. Furthermore, since the wrapping material is made of cloth, the overall air permeability is good in combination with the gap between the red beans. Even when used on a person's shoulders, knees, etc., the contact surface is in contact with a large number of red beans through a cloth, that is, so-called point contact with each red bean, so the human skin is muggy. There is also little risk of low temperature burns. Even if the cloth breaks, only the beans are spilled, so there is no damage to the surroundings.

  When the heat insulating material of the present invention is used, it is necessary to heat the red beans inside the packaging material before use. In this case, microwave irradiation is preferable. For example, the whole heat retaining device may be heated by a household microwave oven, and the red beans as the heat storage material can be heated to a suitable use temperature extremely easily and quickly. As a guideline, it may be heated in a 500 W microwave oven for about 2 to 2 and a half minutes.

  In addition, when a partition for separating the beans is provided in the packaging material, the beans can be distributed almost evenly throughout the heat insulation device, and the beans are not unevenly distributed, providing a uniform heat retention effect. can get. Moreover, even if it is used repeatedly, the red beans will not be biased.

  Further, the packaging material may be divided into a plurality of pieces, and these divided packaging materials may be combined. For example, if the warmer is of a size that is suitable for use on a person's shoulder, when the warmer is used on a person's knee, for example, it can be divided into a size suitable for the knee, and the knee can be efficiently used. Can warm well. Moreover, what is necessary is just to unite | assemble the divided | segmented heat insulating device, when using for a shoulder again.

  According to the heat retaining device of the present invention, it can be used repeatedly without continuously using energy from electricity or fuel. Also, for example, when used on a person's shoulders, knees, etc., the breathability is good. There is little risk of. Therefore, it is safe. The heat retaining device of the present invention can also be used as a warmer for warming up in the cold, and can also be used as a warming device for stiff shoulders, low back pain, arthritis, coldness, and the like.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view of a heat insulator 1 according to the present embodiment.

  The heat insulator 1 has a packaging material 2 and a heat storage material 3 shown in FIG. 2 enclosed in the packaging material 2. For the material of the packaging material 2, a heat-resistant cloth is used, for example, cotton or hemp. The packaging material 2 is formed by stacking two rectangular cloths having a short side length A of 150 mm and a long side length B of 700 mm. Inside the packaging material 2, the short sides 4 a and 4 a and the long sides 4 b and 4 b of the packaging material 2 are respectively stitched to form a rectangular bag portion 4. As shown in FIG. 2, a heat storage material 3 is sealed inside the bag portion 4. Note that the packaging material 2 may be folded by overlapping a single rectangular cloth. In this case, what is necessary is just to sew the 2 sides 4a and 4a inside the packaging material 2, and the 1 side 4b, when forming the bag part 4. FIG.

  String bodies 5, 5 face the short sides 2 a, 2 a of the packaging material 2 and are stitched to the packaging material 2. The same material as the packaging material 2 is used for the material of the string 5, and for example, cotton and hemp are used.

  As the material for the heat storage material 3, red beans having heat storage properties are used. In the present embodiment, 700 g of red beans, for example, is enclosed in the bag portion 4 of the packaging material 2.

  The heat insulator 1 according to the present embodiment is configured as described above, and an example of its use will be described next.

  In order to heat the heat retaining tool 1, for example, a household microwave oven is used. When the warmer 1 is put into the microwave oven and the microwave oven is operated, the warmer 1 is irradiated with microwaves. The microwaves cause moisture inside the heat storage material 3 or water molecules in the atmosphere in the microwave to vibrate, and the heat storage material 3 generates heat by the frictional heat, thereby heating the heat retainer 1. The temperature after heating of the heat insulator 1 can be adjusted by the number of outputs of the microwave oven or the heating time. For example, when used on a person's shoulder, knee, etc., in order to heat the warming device 1 from 40 ° C. to 80 ° C., it may be heated at an output of 500 W for 2 minutes to 2 and a half minutes.

  The case where the heat insulator 1 heated in this way is used on a person's shoulder will be described with reference to FIG. The warmer 1 is put on both shoulders so that the string members 5 and 5 of the warmer 1 are positioned in front of the body (FIG. 3A). In order to prevent the heat insulating device 1 from falling from the shoulder, the string members 5 and 5 are tied so that the heat insulating device 1 is annular (FIG. 3B). At this time, since the heat retaining device 1 has an appropriate weight, it does not deviate from a predetermined position of the shoulder. Moreover, since it is moderate weight, the user of the heat insulator 1 can use it without feeling a burden. When the heat retaining device 1 is used on a person's shoulder in this way, the shoulder is gradually warmed, and is effective in stiff shoulders and cooling.

  The heat retaining device 1 used for the shoulder can maintain the set temperature for one and a half hours to two and a half hours by the heat storage action of the heat storage material 3 even when energy by electricity or fuel is not applied. And even if the thermal storage material 3 finishes radiating and it returns to normal temperature, the thermal storage material 3 can be heated again and the heat insulator 1 can be used repeatedly.

  Moreover, when heating the heat retainer 1 with a microwave oven, you may heat with the water put into the heat resistant container. In this case, when the microwave oven is operated, water molecules in the container vibrate and the heating of the heat retaining device 1 can be assisted by the frictional heat, and the heat retaining device 1 can be efficiently heated.

As described above, according to the heat insulating device 1 of the present embodiment, it can be used repeatedly without continuously using energy from electricity or fuel. For example, even when used on a person's shoulder or the like, the heat retaining device 1 has good air permeability, and each heat storage material 3 in the heat retaining device 1 is in point contact with the human skin through the packaging material 2, so that the human skin is There is little risk of low temperature burns without stuffiness. Therefore, it is safe. Furthermore, even if the cloth breaks, only the beans are spilled, so there is no damage to the surroundings.
Moreover, since red beans are used as the heat storage material 3, the scent is good when the heat retaining device 1 is heated. Therefore, when the heat retaining device 1 is used on, for example, a person's shoulder, an effect of healing a person can be expected.
Note that the shape of the packaging material 2 is not limited to a rectangle, and may be, for example, a circle.

  Next, a heat insulator according to another embodiment will be described with reference to FIGS. 4 and 5. FIG. 4 is a perspective view of a heat retaining device 10 according to another embodiment, and FIG. 5 is a plan view of the heat retaining device 10.

  In order to partition the heat storage material 3 enclosed inside, the heat insulator 10 is provided with nine partition portions 12 inside the bag portion 4. The partition portion 12 is provided by stitching two cloths constituting the packaging material 2. Each partition part 12 is parallel to the short side 4a of the bag part 4, and is arrange | positioned at equal intervals in the long side 4b direction. The partition part 12 divides the bag part 4 into ten small bag parts 11. Each of the pouch portions 11 is formed in the same size, and has a rectangular planar shape in which the long side length C of the pouch portion 11 is 130 mm and the short side length D of the pouch portion 11 is 65 mm. As shown in FIG. 6, each sachet portion 11 contains the heat storage material 3, and the heat storage material 3 is evenly sealed by 70 g.

  The heat insulator 10 according to another embodiment is configured as described above. Thus, when the partition part 12 is provided in order to divide the heat storage material 3 in the heat insulator 10, the heat storage material 3 is almost uniformly distributed throughout the heat insulator 10 even when used in various places. The heat storage material 3 is not unevenly distributed and a uniform heat retaining effect can be obtained.

  Further, a heat insulator according to another embodiment will be described with reference to FIG. FIG. 7 shows a plane of a heat retaining device 20 according to another embodiment.

  The heat retaining device 20 has a divided portion 21 at the center of the packaging material 2 of the heat retaining device 10 of the present embodiment. As shown in FIG. 8, the division part 21 has hook-and-loop fasteners 21a and 21a. The heat retaining device 20 is divided into two heat retaining devices 30 and 30 by the surface fasteners 21a and 21a. The divided heat insulating devices 30 and 30 can be combined to form the integrated heat insulating device 20 again. The heat retaining device 30 has a bag portion 22, and the bag portion 22 has five small bag portions 11. Furthermore, the split part 21 of the heat retaining device 30 is provided with a cord body 23 that faces the cord body 5, and the cord body 23 is made of the same material as the cord body 5.

  The heat insulator 20 according to another embodiment is configured as described above. For example, when the heat retaining device 20 is used on a human knee, the heat retaining device 20 can be divided into smaller heat retaining devices 30 (FIG. 9A). In this case, since the heat insulating device 30 that has been divided and made smaller is a size suitable for a human knee, the knee can be warmed efficiently and can be easily worn. Further, since the split body 21 is provided with the string body 24, the heat insulator 30 after being divided is also prevented from falling from the knee by tying the string body 5 and the string body 24. (FIG. 9B).

  In the present embodiment, the heat insulating device 20 can be divided into two parts, but a plurality of dividing portions 21 may be provided so that the heat insulating device 20 can be divided into three or more.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be made within the scope of the ideas described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  The inventor measured the time-dependent change of the surface temperature of the heat insulator 10 after heating the heat insulator 10 shown in FIG. The heat insulator 10 used for this measurement has the structure as described above.

  First, the heat insulator 10 was put in a microwave oven, and the heat insulator 10 was heated at an output of 500 W for 2 minutes and 30 seconds. After the heated warming tool 10 was taken out of the microwave oven, a change with time in the surface temperature of the warming tool 10 was measured.

  The heated warming tool 10 was folded in three on its short side and left in the atmosphere at 25 ° C. During this standing, as shown in FIG. 9, a thermometer 40 was inserted between the overlapping heat insulators 10 and 10 to measure the surface temperature of the heat insulator 10. Temperature measurement was performed every 10 minutes. In addition, after heating with a microwave oven, energy, such as electricity and a fuel, is not supplied with respect to the heat retention tool 10. FIG.

  The measurement result of the surface temperature of this heat retaining tool 10 is shown in the time series graph of FIG. The surface temperature of the warming tool 10 at 0 minutes indicates the temperature immediately after the warming tool 10 is taken out from the microwave oven. According to this result, the warming tool 10 which was 75 ° C. at the start of measurement was able to maintain a state of 40 ° C. or higher for about 2 hours. In addition, when the heat retaining device 10 of the present invention is used for, for example, a person's shoulder, knee, etc., it is considered that the temperature duration of the heat retaining device 10 is further increased by supplying heat from the human body.

  The present invention is useful for a reusable heat insulator suitable for use on, for example, a person's shoulder, knee, and the like.

It is a perspective view of the heat insulator concerning this Embodiment. It is the XX sectional view taken on the line of FIG. It is explanatory drawing in the case of using a heat insulator on a person's shoulder. It is a perspective view of the heat insulator concerning other embodiment. It is a top view of the heat insulator concerning other embodiment. It is the YY sectional view taken on the line of FIG. It is a top view of the heat insulator concerning other embodiment. It is a top view of the heat insulator after dividing | segmenting a heat insulator. It is explanatory drawing in the case of using a heat insulating tool for a person's knee. It is explanatory drawing of the heat insulator which showed the location which measures the surface temperature of the heat insulator of an Example. It is the graph which showed the measurement result of the surface temperature of the heat retention implement of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insulation tool 2 Packaging material 3 Thermal storage material 4 Bag part 5 String body 12 Partition part 21 Dividing part

Claims (3)

A heat storage material having a heat storage effect and a packaging material containing the heat storage material,
A heat insulator, wherein red beans are used as the heat storage material and cloth is used as the packaging material. The heat retaining device according to claim 1, further comprising a plurality of partition portions for separating the heat storage material into a plurality of pieces in the packaging material. The heat insulating device according to claim 1 or 2, wherein the packaging material can be divided into a plurality of pieces, and the divided packaging materials can be combined.

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