JPH039736Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention is a thermal structure, more specifically, a sheet body with air permeability, in which a heat-generating agent is encapsulated and attached to the skin using a patch to locally apply heat to the body. The present invention relates to a heating structure that can relieve stiff shoulders, poor blood circulation, etc. [Prior Art] Conventionally, structures that utilize body heat include disposable body warmers that utilize chemical reactions, benzine-type body warmer-shaped heating elements, and heating elements that utilize electric heat. has been done. Examples of these include, for example, Patent Publication No. 1983-
Examples include those described in No. 25555, Utility Model Publication No. 1983-28608, and the like. [Problems that the invention aims to solve] However, if a power source such as an electric cord is used, the degree of freedom of movement during use is extremely reduced, and the heating element in the shape of a hand warmer cannot be carried in a pocket, etc. When used, it becomes bulky and always feels uncomfortable. Therefore, there are expectations for a structure that is small and lightweight enough to be attached to the skin and utilizes heat without using a power source such as an electric cord, but such a structure does not yet exist. This is because by miniaturizing the device and using a small amount of exothermic agent, it is not possible to obtain a sufficient amount of heat to heat the skin at a low temperature. That is, in the moxibustion device described in JP-A No. 61-25555, water must be added during use. Furthermore, the moxibustion device described in Utility Model Publication No. 58-28608 uses moxa, requires ignition, and is elongated and bulky, making it impossible to put on clothes when using it. The present invention is intended to solve the above-mentioned problems in the prior art, and its purpose is to provide a thermal structure that is small and lightweight and has a sufficient thermal effect. For details, please refer to the inside of the breathable planar body.
It is a thermal structure containing a heat generating agent consisting of cast iron powder, hydrated magnesium silicate, salts and water. The purpose of this invention is to provide a thermal structure that has a thermal effect and is smaller and lighter than conventional heating elements. Another purpose of this invention is to create a heating structure that locally heats the body by making the heating element smaller and lighter, and has excellent therapeutic effects to relieve stiff shoulders, poor blood circulation, lower back pain, muscle fatigue, etc. It is about providing. [Means for Solving the Problems] That is, the thermal structure of the present invention includes a planar body consisting of an air permeable non-contact part to the test subject and a thermally conductive part formed in the contact part to the test subject; a heat-generating part made of a heat-generating agent sealed inside the body and disposed so as to be able to conduct heat to the heat-conducting part; a patch part formed by adhering a patch to a subject-contact surface of the peripheral part of the planar body; It is characterized by comprising a removable sheet that is attached to the surface of the attachment part, and a non-breathable bag that seals the entire surface of the sheet. [Function] The mechanism by which the exothermic agent used in the present invention exhibits its effects is not necessarily clear yet, but it is thought to be as follows. In other words, the heat obtained from the exothermic agent is efficiently transferred from the conductive part formed at the subject contact part of the sheet body to the subject, compared to conventional methods that do not pay particular technical consideration to the heat conductive part. and dilate blood vessels,
Smoothes blood circulation and metabolism. In other words, it replenishes the energy consumed by a certain task or action, and facilitates metabolism and circulation to carry away unnecessary waste products generated by the action. For example, muscle activity causes the breakdown of adenosine triphosphate (ATP), creatine phosphate, glycogen, etc., resulting in the overproduction and accumulation of phosphoric acid, lactic acid, pyruvate, anhuamonia, etc. This facilitates the removal of waste products through metabolism and blood circulation. [Effects of the invention] Since the thermal structure of the invention has the above-described configuration, the heat obtained from the exothermic agent is transferred to the specimen from the heat conduction part formed at the specimen contacting part of the planar body. Because it is efficiently transmitted, the above effects on the body improve the body's metabolism and blood circulation,
It has the effect of relieving stiff shoulders, poor blood circulation, back pain, muscle fatigue, etc. [Description of Embodiments] Particularly preferred embodiments of the present invention include, for example, the following. (a) The heat conductive portion of the planar body is made of at least one of a member made of a material with good heat conductivity such as metal, or a member made into a thin film or other material with good heat conductivity. (b) The planar body has a flat surface on one side and a convex portion in the center of the other surface, and a patch is formed on the periphery of the flat surface of the planar body, and the patch is applied to the surface. It has a removable sheet. (c) one side of the planar body is flat and the other side is convex, a patch is provided on the flat part, and a removable sheet to be attached to the surface of the patch is arranged;
A heat generating agent is sealed inside the protrusion. (d) In (b) or (c), the shape of the convex portion is a shape obtained by dividing a cylinder along its axis. (e) In (b) and (c), the convex part has a dome shape. (f) In (b) and (c), the shape of the convex portion is a truncated square pyramid shape. (g) In (b) to (f), a patch is provided on the periphery of the side having the convex portion of the planar body, and a removable sheet to be attached to the surface of the patch is arranged. (h) In (b) to (g), the planar body has a structure in which the protrusions are separated into many parts. (i) On the surface of the planar body that does not contact the subject,
A non-breathable sheet is attached, and at least a portion of the non-breathable sheet is removable. (j) The removable sheet attached to the surface of the patch is non-breathable and forms part of a non-breathable bag that seals the heating element. (k) The adhesive part consists of a removable adhesive material such as Magic Tape (registered trademark). (l) The exothermic agent is cast iron powder with a carbon content of 2.5 to 30 wt%, 30 to 200 parts by weight of hydrated magnesium silicate clay mineral per 100 parts by weight of the cast iron powder, and 1 to 30 parts by weight of hydrated magnesium silicate clay mineral.
Consisting of 50 parts by weight of salts and 5 to 200 parts by weight of water. (m) In (l), the content of hydrated magnesium silicate clay mineral is 70 parts by weight per 100 parts by weight of cast iron powder.
~150 parts by weight. The exothermic agent used in the thermal structure of this embodiment is
Any exothermic agent that utilizes a chemical reaction may be used. For example, compositions consisting of alkali metal sulfides or polysulfides, or their hydrated salts, and carbonaceous substances or iron carbide, which generate heat when in contact with oxygen or air, iron, zinc, aluminum, tin, or alloys thereof, etc. metal powder, inorganic metal salts such as iron sulfate, iron chloride, sodium chloride, and magnesium chloride as oxidation catalysts, and activated carbon, zeolite, diatomaceous earth, hydrated magnesium silicate clay mineral, talc, activated clay, and calcined permiculite as water retention agents. and water, and generates heat upon contact with oxygen. In particular, a composition consisting of fine cast iron powder, a water retention agent, inorganic metal salts, and water has an exothermic property,
Preferable from the viewpoint of sustainability. This exothermic agent is further
It is preferable that the exothermic agent consists of cast iron powder, hydrated magnesium silicate clay mineral, salts, and water. The cast iron powder used here is a cast iron powder with a carbon content of 2.5 to 30% by weight obtained by pulverizing cast iron. This powder preferably has a particle size of 100 mesh or less. This is because when the mesh size is less than 100, the surface area of the cast iron powder becomes large and reactions easily occur. Furthermore, it is more preferable if the powder is a fine powder with a particle size of 300 mesh or less.
Here, the reason why the carbon content of the cast iron powder is set to 2.5 to 30% by weight is because if the content is less than 2.5% by weight, the formation of carbon-iron local cells is insufficient and the reactivity is poor. This is because if the amount exceeds 30% by weight, the amount of iron contributing to the reaction decreases. In addition, the content is
A content of 4.0 to 21% by weight is more preferable because it provides a good balance between the amount of local battery formation and the amount of iron contributing to the reaction. Further, a hydrated magnesium silicate clay mineral (hereinafter referred to as a clay mineral) is a clay mineral whose main component is hydrated magnesium silicate and has a highly reactive hydroxyl group on its surface. In addition, this clay mineral
It is made of fibers with a diameter of about 0.005 to 0.6 μm, and parallel to the fibers there are pores (channels) with a rectangular cross section of about 10 x 6 Å, which absorb moisture from the air. It also has the property of emitting light. In addition, some of the magnesium in the clay mineral may be replaced with aluminum, iron, sodium, nickel, or the like. Specifically, Seviolite, Xylotile, Loughlinite, which is mainly composed of hydrated magnesium silicate,
There are falcondoite, palygorskite whose main component is hydrated magnesium aluminum silicate, etc., and one or a mixture of two or more of these is used. Also commonly known as Mountain cork,
Minerals called mountain wood, mountain leather, meerschaum, and attapulgite fall under this category. The clay mineral may be used in the form of powder, granules, or plates, but it must be made to the extent that the pores of the clay mineral remain. It is preferable to use one that has been pulverized to the extent that it can be easily dispersed, and the particle size is preferably 20 mesh or less, preferably 100 mesh or less. In addition, salts promote the oxidation reaction of the main ingredient, and are compounds that are generated by the reaction between acids and bases, dissolve in water, and increase the electrical conductivity of water.
These include metal hydrochlorides, metal nitrates, metal sulfates, metal carbonates, metal thiosulfates, and metal organic acid salts. The salts are selected so that the entire composition is neutral or slightly alkaline. Specifically, sodium chloride, potassium chloride, magnesium chloride,
Calcium chloride, sodium sulfate, potassium sulfate, sodium nitrate, potassium nitrate, sodium acetate, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, magnesium carbonate, sodium thiosulfate, potassium thiosulfate, calcium thiosulfate, magnesium thiosulfate, etc. There is. A preferred exothermic agent used in this embodiment is one consisting of the above-mentioned cast iron powder, clay mineral, salts and water,
The content ratio is 30 to 200 parts by weight of clay minerals, 1 to 50 parts by weight of salts, and 5 to 200 parts by weight of water to 100 parts by weight of cast iron powder. Here, the content ratio of clay mineral is set to 30 to 200 parts by weight per 100 parts by weight of cast iron powder, because if the ratio is less than 30 parts by weight, the cast iron powder will be immersed in water. This is because it becomes difficult to supply oxygen, and if the amount exceeds 200 parts by weight, water will be absorbed by clay minerals, making it difficult to supply water to the iron surface. In addition, when the proportion is 7 to 150 parts by weight, water,
This is preferable because the oxygen supply is well balanced. In addition, the reason why the content ratio of salts is set to 1 to 50 parts by weight per 100 parts by weight of cast iron powder is because if the ratio is less than 1 part by weight, it is not sufficient to activate the reaction. This is because if the amount exceeds 1 part by weight, it becomes difficult for water to be supplied to the iron surface absorbed by the salts. Incidentally, it is preferable that the proportion is 5 to 30 parts by weight because it provides a well-balanced state for activating the reaction. In addition, the reason why the content ratio of water is 5 to 200 parts by weight per 100 parts by weight of cast iron powder is because if the ratio is less than 5 parts by weight, less water will be used for the reaction, and it will be absorbed by the water retention agent. This is because if the amount exceeds 200 parts by weight, the mixture will be immersed in water. In addition,
When the proportion is 50 to 100 parts by weight, it is preferable because oxygen and moisture are well supplied. Furthermore, the exothermic agent used in this embodiment may contain various additives, if desired, within a range that does not impair the effects of this embodiment. For example, additives such as diatomaceous earth, zeolite, talc, activated carbon, graphite, carbon black, etc. are used to thin the water layer in the composition and facilitate oxygen diffusion.
These include acid clay, activated clay, molecular sieve, bentonite, and calcined vermiculite. In addition, copper, tin,
Oxidation promoters include metal powders, metal salts, and metal oxides such as nickel, copper chloride, iron chloride, calcium oxide, copper sulfate, iron sulfate, copper oxide, and magnesium oxide. The planar body of this embodiment consists of a non-contacting part and a part contacting a subject, which has a heat conductive part that has good thermal conductivity and easily conducts heat generated from the heat generating part to the subject. The sheet material has enough air permeability to prevent the exothermic agent sealed inside from leaking to the outside and to allow air or oxygen to pass through easily. It is possible to use a synthetic resin membrane with a non-porous membrane, a non-porous synthetic resin membrane with a large number of micropores, or a multilayer membrane of these. The thermally conductive portion is formed using a material that has good thermal conductivity and can easily conduct the heat generated from the heat generating portion to the subject, or is made into a thin film to have good thermal conductivity. The materials used include metals, ceramics, and resins, which have excellent thermal conductivity and can easily conduct the heat generated from the heat generating part to the test object, and the latter, which have good thermal conductivity and can easily conduct the heat generated from the heat generating part to the subject. Examples of materials that provide good thermal conductivity include metals, ceramics, resins, and paper. These materials are
Specifically, (1) metals such as copper, aluminum,
Iron, stainless steel, cast iron, graphite, etc., (2) Synthetic resins, such as polyethylene, polyvinylidene chloride, polypropylene, polystyrene, etc., (3) Ceramics, such as alumina, aluminum silicate, aluminum borosilicate, zirconia, etc., (4) Paper , for example, Japanese paper, synthetic paper, etc., and (5) composites of the above (1) to (4), such as powdered coating or dotted on a thin film, and other forms. However, synthetic resins with particularly excellent thermal conductivity,
Metals and composite materials containing these metals are preferred. Further, it is desirable to arrange a heat insulating member made of a heat insulating material at the boundary between the heat conductive part and other parts. These are used by forming them into a film shape, a plate shape, a shape with protrusions, etc. Here, in the thermal structure of this embodiment, the heat obtained from the exothermic agent is efficiently transferred to the subject from the heat conduction part formed at the subject contacting part of the planar body, so that the heat generated by the heating element is The reaction and reaction time, the temperature and transfer time of heat transferred to the subject, etc. can be freely adjusted, and the optimum temperature can be set. In other words, the duration of the exothermic agent can be adjusted by the amount of exothermic agent or the number and size of holes provided in the subject contacting part of the planar body, but the amount of exothermic agent depends on the size of the thermal structure. Due to these limitations, it has been difficult to sustain a small amount for a long period of time. However, in this embodiment, since the thermal conductive part is made of a member with excellent thermal conductivity, the heat obtained from the exothermic agent can be efficiently transferred to the subject. The number of holes can be reduced or/
In addition, since the exothermic reaction can be suppressed by reducing the size of the hole, the duration of the heating element can be extended even with a small amount of exothermic agent. In addition, by appropriately adjusting the material of the heat conducting part, the number and/or size of the holes, and the amount or quality of the exothermic agent, the exothermic reaction of the exothermic agent can be controlled.
That is, the amount of heat generated per unit time and the amount of heat transferred to the subject can be optimally adjusted, making it possible to achieve the temperature and duration that meet the requirements. In addition, the non-breathable bag used in this embodiment is designed to prevent the exothermic agent sealed inside from reacting upon contact with air or oxygen, and to prevent the moisture in the exothermic agent sealed inside from volatilizing to the outside. It should be made of a material with extremely poor breathability. Examples include bags made of synthetic resin or metal. More specifically, bags made of a single layer film of polyvinylidene chloride, vinylon, aluminum, etc., or a double layer film of these and cellophane, polyester, polyethylene, polypropylene, nylon, polyvinyl chloride, polystyrene, etc. Examples include bags made of these multilayer films. Further, the peelable sheet used in this embodiment is used to prevent the pasted part from being contaminated during storage, and its material may be the same as that used for the non-breathable bag, or , a multilayer film of these and paper or the like may be used. Furthermore, the adhesive patch used in this embodiment is used to anchor the heat generating part to the skin surface, and is an adhesive that does not irritate the skin or cause symptoms such as rash. Particularly preferred is one using an adhesive used for medical purposes. Although the mechanism by which the above-mentioned preferred exothermic agent used in this embodiment exerts its excellent effects is not yet clear, it is thought to be as follows. That is, low-temperature wet oxidation of a heat generating agent based on iron-based metals, so-called iron rust, occurs in the presence of oxygen and water in a neutral or alkaline region according to the following reaction. (1) Electrochemical reaction Fe+1/2O ₂ +H ₂ O→Fe (OH) ₂ (anode) Fe→Fe ²⁺ +2e ^- (cathode) 1/2O ₂ +H ₂ O+2e ^- →2 (OH) ^- (2) Chemistry oxidation reaction Fe(OH) ₂ +1 _/ 4O ₂ +1/2H ₂ O→Fe(OH) ₃ (3) Overall reaction Fe+3/4O ₂ +3/2H ₂ O→Fe(OH) The preferred exothermic agent is
Because cast iron with a high carbon content is used, a local battery is formed inside the cast iron, and because fine cast iron powder is used, the large surface area of the cast iron powder is effectively utilized, and the clay minerals prevent oxygen and moisture. It is thought that the salts facilitate the supply (diffusion) of water and increase the electrical conductivity of water, promoting the above reaction and resulting in a fast initial reaction with excellent exothermic properties. Moreover, since this exothermic agent uses clay minerals that have excellent water retention, water is used effectively in the reaction, and it seems that the above-mentioned effect is maintained. [Example] The present invention will be explained in more detail in the following example. Note that the present invention is not limited to the following examples. Example 1 The thermal structure of the present invention shown in FIGS. 1a and 1b consists of a heat generating agent 1 and a sheet body 2 having air permeability that encloses the heat generating agent (a non-contacting part 2' and a heat conducting part). 2''), a patch 3, and a release sheet 4
The heating element 7 is made up of a heating element 7, and a non-breathable bag 5 sealing the heating element 7. The exothermic agent 1 is one that utilizes a chemical reaction, and is particularly preferably one that uses fine cast iron powder.
Cast iron powder with carbon content of 14.4wt% and 350 mesh or less10
Sepiolite less than 100 mesh based on weight part
3 g of a mixture of 10 parts by weight, 2 parts by weight of common salt, and 8 parts by weight of water was used. This exothermic agent 1 is in the form of powder, and is used by being sealed in a planar body 2 that prevents the powder from spilling. The planar body 2 was a two-layer film consisting of Japanese paper and a synthetic resin film, and the synthetic resin film had circular holes with an inner diameter of about 1 mm at intervals of 7 mm. Using this two-layer film, one side is approximately 3.5 cm long and the height is approximately 5 cm.
It was made into a bag shape of mm, and formed into a dome shape to obtain a planar body 2. The patch 3 was applied to the dome-shaped bottom surface of the planar body 2 using a patch used for medical surgical tape, and a release sheet 4 was placed on the surface. The non-breathable bag 5 is made of vinylon and polyester.
It was made of a layered film, shaped into a square bag with sides of 6 cm, and the above-mentioned heating element 7 was sealed to obtain a thermal structure. When in use, first the heating element is taken out from the air-impermeable bag 5, then the release sheet 4 is peeled off and applied to the skin. As a result, the exothermic agent 1 comes into contact with air and generates heat, and this heat can relieve stiff shoulders, poor blood circulation, and the like. Performance Evaluation Test 1 Using the thermal structure shown in Example 1, the heat generation characteristics of this structure were investigated. Figure 2 shows the state of the experiment. First, take out the heating element 7 from the non-breathable bag 5,
Peel off the release sheet 4 and apply the skin surface 6 on the inside of the left forearm.
affixed to. Furthermore, three pieces of flannel cloth 8 each 15 cm square and approximately 2 mm thick were placed over the heating element, and both ends of the cloth were fixed with rubber bands 9. Here, an alumel-chromel thermocouple 10 was placed between the patch 3 of the heating element 7 and the skin, and temperature changes were recorded using a digital thermometer 11 and an automatic recorder 12. The results are shown in Table 1. Further, the results shown in Table 1 are shown in FIG.

[Table] From the results in Table 1 and Figure 3, the temperature reached approximately 40°C 5 minutes after the start of the experiment, and the temperature remained constant at 40°C until 120 minutes.
It can be seen that the temperature was maintained at 41.5℃. That is, the initial reaction started quickly, the steady duration at a temperature that would not cause burns was long, and sufficient heat was obtained to relieve fatigue in the forearm. Example 2 The thermal structure of the present invention shown in FIGS. 4a and 4b includes a heat generating agent 1, a sheet body 2 having air permeability that encloses the heat generating agent 1, a patch 3, and a release sheet 4.
and a non-breathable bag 5 that seals the entire bag. The exothermic agent 1 is one that utilizes a chemical reaction, and is particularly preferably one that uses fine cast iron powder.
Cast iron powder with carbon content of 14.4wt% and 350 mesh or less10
Coconut shell activated carbon of 60 mesh or less per part by weight
3 g of a mixture of 10 parts by weight, 2 parts by weight of common salt, and 8 parts by weight of water was used. This exothermic agent 1 was in the form of a powder, and was used by being sealed in a planar body 2 from which the powder would not spill. The planar body 2 was a two-layer film consisting of Japanese paper and a synthetic resin film, and the synthetic resin film had circular holes with an inner diameter of about 1 mm at intervals of 7 mm. Using this two-layer film, it was made into a dome-shaped bag with an inner diameter of about 3.5 cm and a height of about 7 mm, and a planar body 2 was formed. The adhesive patch 3 was the same as in Example 1, and was applied to the flat part of the dome-shaped sheet body 2, and a release sheet 4 was placed on the surface thereof. The non-breathable bag 5 was made of a two-layer film of aluminum and polyester, and was shaped like a square bag with sides of 6 cm, and the above-mentioned heating element was sealed to form a thermal structure. When in use, first the heating element is taken out from the air-impermeable bag 5, then the release sheet 4 is peeled off and applied to the skin. As a result, the exothermic agent 1 comes into contact with air and generates heat, and this heat can relieve stiff shoulders, poor blood circulation, and the like. Performance Evaluation Test 2 Using the thermal structure shown in Example 2, the heat generation characteristics of this structure were investigated. The experimental apparatus and method followed Performance Evaluation Test 1, using the apparatus shown in FIG. The results are shown in Table 2. Further, FIG. 5 shows how the heat generation temperature changes over time.

[Table] From the results in Table 2, the temperature reached approximately 40℃ 10 minutes after the start of the experiment.
It was possible to maintain a constant temperature of 40-41℃ for up to 100 minutes. The heat was constant and constant at a temperature that would not cause burns, and was sufficient to relieve fatigue in the forearm. Example 3 Figures 6a and b show Example 3 of the present invention. In Example 3, a convex portion is provided at the center of one surface of the planar body, and the shape of the convex portion is a shape obtained by dividing a cylinder along its axis. Example 4 FIGS. 7a and 7b show Example 4 of the present invention. In Example 4, a convex portion is provided at the center of one surface of the planar body, and the convex portion has a dome shape. Further, a thin film of polyethylene is used for the heat conduction part. Further, the adhesive patch 3 is not applied to the central part of the back surface of the convex part, but is applied to the peripheral part. As a result, the heat obtained by the exothermic agent 1 can be easily transferred through the heat conduction part, and since the application part can be provided widely, it can be stably latched onto the skin surface. Example 5 Figures 8a and 8b show Example 5 of the present invention.
In this embodiment, the planar body has one surface that is flat and the other surface that has a convex portion in the center, and a patch 3 is provided on the flat surface of the side that has the convex portion, The patch 3
A removable sheet 4 is arranged on the surface. As a result, the exothermic agent 1 receives air supply not only from the surface of the convex part but also from the back side, making it easier to generate heat, and since the surface of the convex part is pressed against the skin, an acupressure effect can also be obtained. Furthermore, the transfer of heat to the body becomes easier. Example 6 FIGS. 9a and 9b show Example 6 of the present invention.
In this example, a removable non-breathable sheet 13 adhered with an adhesive 15 having a weak adhesive force is arranged on the surface of the planar body that does not contact the subject, and a non-breathable sheet 13 is attached as desired. The adhesive sheet 13 can be partially peeled off. 14 indicates a junction separation part. By partially peeling off the non-breathable sheet 13, the temperature can be maintained to suit one's preference and comfortable heat can be obtained. Note that the non-breathable sheet 13 is made of the same material as the non-breathable bag. Example 7 Figures 10a and 10b show Example 7 of the present invention. In this embodiment, the peelable sheet attached to the surface of the adhesive patch 3 is part of a non-breathable bag 5 that seals the heating element. This eliminates the need to peel off the releasable sheet during use, and is also economical. Example 8 FIG. 11 shows Example 8 of the present invention. In this embodiment, the planar body has a structure in which the convex portions are separated into many parts. By creating a structure with multiple convex parts,
The exothermic agent 1 is uniformly distributed on the surface of the planar body 2 and is not biased. In addition, it can come into contact with a wide range of skin surfaces and can effectively transmit heat to the body. Example 9 FIG. 12 shows Example 9 of the present invention. In this embodiment, the breathable planar body 2 is shaped like a belt, and Velcro tape 16 is provided at both ends, so that it can be used by being detachably wrapped around the arm, for example. With such a structure, the patch does not come into direct contact with the skin, and skin irritation caused by the patch can be avoided. Example 10 FIG. 13 shows Example 10 of the present invention. The present embodiment includes a planar body 2 having air permeability, a heat generating part made of a heat generating agent 1 sealed inside the planar body 2, and a metal piece 17 arranged on the subject contacting surface of the planar body 2. a heat conductive part 2'' consisting of a heat conductive part 2'', an adhesive part formed by adhering the adhesive patch 3 to a part other than the thermal conductive part 2'' on the subject contacting surface of the planar body, and a peelable adhesive applied to the surface of the adhesive part. It consists of a sheet 4 and a non-breathable bag 5 that seals the entire bag. The exothermic agent 1 is one that utilizes a chemical reaction, and is particularly preferably one that uses fine cast iron powder.
Sepiolite 8 with carbon content of 14.4% and 100 mesh or less per 10 parts by weight of cast iron powder with 350 mesh or less
3 g of a mixture of 2 parts by weight of coconut shell activated carbon of 60 mesh or less, 2 parts by weight of common salt, and 8 parts by weight of water was used. The part of the planar body 2 other than the heat conductive part 2'' is a two-layer film of Japanese paper and a polymer membrane, and the polymer membrane has a 7 mm diameter.
Those having circular holes with an inner diameter of about 1 mm at intervals were used. Using this two-layer film, the inner diameter of this
The bag had a dome shape of 3.5 cm and a height of about 7 mm, and a hole with an inner diameter of about 2 cm was drilled in the center of the flat part. The metal piece 17 of the heat conduction part 2'' is made of aluminum, has a circular shape with an inner diameter of about 3.5 cm and a thickness of about 1 mm, and has an inner diameter of about 2 cm at the center of one side of the flat part.
A circular platform with a thickness of about 1 mm was created. This metal piece 17 is glued to the inside of the planar body 2 with a mold that allows a circular base with an inner diameter of about 2 cm to emerge from a hole with an inner diameter of about 2 cm drilled in the center of the flat part of the planar body, and then heated. The conductive part 2'' was placed inside the planar body 2. The exothermic agent 1 was placed inside the planar body 2. The adhesive patch 3 used was a patch used for medical surgical tape, and the metal piece 1 of the dome-shaped planar body 2 was used.
It was applied to the flat surface except for 7 parts, and a release sheet 4 was placed on the surface. The non-breathable bag 5 was made of a two-layer film of aluminum and polyester, and was shaped into a square bag with sides of 6 cm, and the above-mentioned heating element was sealed to form a thermal structure. When in use, first the heating element is taken out from the air-impermeable bag 5, then the release sheet 4 is peeled off and applied to the skin. As a result, the exothermic agent 1 comes into contact with air and generates heat, and this heat can relieve stiff shoulders, poor blood circulation, and the like. Furthermore, in the case of this embodiment, heat can be easily transferred to the skin due to the metal piece 17, and heat can be used effectively. Example 11 FIG. 14 shows Example 11 of the present invention. This embodiment has a structure in which a copper plate 18 having a large number of protrusions on the heat generating agent side is used for the heat conduction part 2'' of the planar body. By having the heat generating agent 1, the heat generated by the exothermic agent 1 can be more easily transmitted, and the heat can be effectively transmitted to the body. Example 12 FIG. 15 shows Example 12 of the present invention. The present embodiment has a structure in which a curved copper plate 19 is used for the heat conduction portion 2'' of the planar body 2. With this structure, the heat generated by the exothermic agent 1 can be effectively dissipated. At the same time, the curved copper plate 19 can provide an acupressure effect on the body.

[Brief explanation of the drawing]

1 shows a first embodiment of the thermal structure of the present invention, FIG. 1a is a perspective view, FIG. 1b is a sectional view, and FIG.
The figure is a schematic explanatory diagram of a performance evaluation test using the thermal structure of Example 1, Figure 3 is a graph showing the change in heat generation temperature of the thermal structure of Example 1 over time, and Figure 4 is an example of the present invention. 2, FIG. 4a is a perspective view, FIG. 4b is a sectional view, FIG. 5 is a graph showing the change over time in the heat generation temperature of the thermal structure of Example 2 of the present invention, and FIG. Embodiment 3 is shown, FIG. 6a is a perspective view,
FIG. 6b is a sectional view, FIG. 7 is a sectional view of the present invention, FIG. 7a is a perspective view, FIG. 7b is a sectional view, and FIG. 8 is a sectional view of the present invention. FIG. 8a is a perspective view, FIG. 8b is a sectional view, FIG. 9 shows a sixth embodiment of the present invention, FIG. 9a is a perspective view, FIG. 9b is a sectional view, and FIG. Showing Example 7 of the invention, the 10th
Figure a is a perspective view, Figure 10b is a sectional view, Figure 11 shows Embodiment 8 of the present invention, Figure 11a is a perspective view,
Fig. 11b is a sectional view, Fig. 12 is a partially cutaway perspective view showing a ninth embodiment of the present invention, Fig. 13 is a tenth embodiment of the present invention, Fig. 13a is a perspective view, and Fig. 13b
14 is a sectional view showing the 11th embodiment of the present invention, and FIG. 15 is a sectional view showing the 12th embodiment of the present invention. In the figure, 1... exothermic agent, 2... planar body, 2'...
Subject non-contact part, 2''...Heat conductive part, 3...Patch, 4...Peeling sheet, 5...Non-breathable bag, 6...
...Skin surface, 7...Heating element, 8...Flannel cloth,
9...Rubber band, 10...Alumel/chromel thermocouple, 11...Digital thermometer, 12...Automatic recorder, 13...Non-breathable sheet, 14...Joint separation part, 15...Adhesive, 16 ...Magic tape,
17...metal piece, 18...copper plate with protrusions, 19...curved copper plate.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) From a highly thermally conductive part formed in a breathable non-contact part to the test subject and a part in contact with the test subject that has good thermal conductivity and easily conducts heat generated from the heat generating part to the test subject. A planar body consisting of a heat conductive part, a heat generating part made of a heat generating agent sealed inside the planar body and disposed so as to be able to conduct heat to the heat conductive part, and a subject around the planar body. A thermal structure comprising: a patch formed by adhering a patch to a contact surface; a removable sheet attached to the surface of the patch; and a non-breathable bag that seals the entire planar body. body. (2) The heat conductive part of the planar body is characterized by being made of at least one of a member made of a material with good heat conductivity such as metal, or a member made into a thin film or other material with good heat conductivity. A thermal structure according to claim (1) of the utility model registration claim. (3) The planar body has a flat surface on one side and a convex portion in the center of the other surface, and a patch is formed on the periphery of the flat surface of the planar body, and the patch is pasted on the surface. Utility model registration claim paragraph (1) or (2) characterized in that a peelable sheet is disposed
Thermal structure described in section. (4) One side of the planar body is flat and the other side is convex, a patch is provided on the flat part, and a removable sheet to be attached to the surface of the patch is arranged,
Utility model registration claim item (1) or (2) characterized in that a heat generating agent is enclosed in the convex part
Thermal structure described in section. (5) The thermal structure according to claim (3) or (4) of the utility model registration, wherein the shape of the convex portion is a shape obtained by dividing a cylinder along its axis. (6) Utility model registration claim paragraph (3) or (4) characterized in that the shape of the convex portion is dome-like.
Thermal structure described in section. (7) The thermal structure according to claim (3) or (4) of the utility model registration, wherein the shape of the convex portion is a truncated quadrangular pyramid shape. (8) Utility model registration claim No. 1, characterized in that a patch is provided on the periphery of the side having the convex portion of the planar body, and a removable sheet is disposed on the surface of the patch. The thermal structure according to any one of items (3) to (7). (9) Utility model registration claim No. (3) characterized in that the convex portion of the planar body has a structure separated into many parts.
The thermal structure according to any one of items (8) to (8). (10) On the side of the planar body that does not come into contact with the subject,
Utility model registration claim 1 or 2, characterized in that a non-breathable sheet is attached and at least a part of the non-breathable sheet is removable.
The thermal structure described in (2). (11) Scope of utility model registration claims characterized in that the peelable sheet affixed to the surface of the patch is non-breathable and forms part of a non-breathable bag that seals the heating element. The thermal structure according to item (1) or item (2). (12) The thermal structure according to claim (1) or (2) of the utility model registration claim, wherein the adhesive part is made of a removable adhesive material such as Magic Tape (registered trademark). (13) The exothermic agent is cast iron powder with a carbon content of 2.5 to 30 wt%, 30 to 200 parts by weight of hydrous magnesium silicate clay mineral based on 100 parts by weight of the cast iron powder, and 1
The thermal structure according to claim (1) or (2), characterized in that it comprises ~50 parts by weight of salts and 5~200 parts by weight of water. (14) The thermal structure according to claim 13, wherein the content of the hydrated magnesium silicate clay mineral is 70 to 150 parts by weight based on 100 parts by weight of cast iron powder. .