WO2018101555A1 - Shoe insole using expanded graphite sheet - Google Patents

Shoe insole using expanded graphite sheet Download PDF

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Publication number
WO2018101555A1
WO2018101555A1 PCT/KR2017/006163 KR2017006163W WO2018101555A1 WO 2018101555 A1 WO2018101555 A1 WO 2018101555A1 KR 2017006163 W KR2017006163 W KR 2017006163W WO 2018101555 A1 WO2018101555 A1 WO 2018101555A1
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WO
WIPO (PCT)
Prior art keywords
seam
sheet
shoe
conductive sheet
expanded graphite
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PCT/KR2017/006163
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French (fr)
Korean (ko)
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전태구
김광일
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전태구
주식회사 아산정밀
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Publication of WO2018101555A1 publication Critical patent/WO2018101555A1/en

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/026—Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials

Definitions

  • the present invention relates to shoe insoles such as men's shoes, ladies' shoes, boots, combat shoes, hiking boots, sneakers and the like. More specifically, the present invention relates to a shoe insole that can improve the blood circulation of the foot by keeping the temperature difference between the front and heel of the foot as uniform as possible.
  • the foot consists of 52 bones, 66 joints, 40 muscles, and 82 ligaments. It is also the “stone of the human body” in which numerous nerves and blood vessels are delicately harmonized. If any of them go wrong, your feet will feel pain and your gait will go wrong. Also, many nerves are distributed in the foot. Stimulating the nerves in your feet will clear your head and make you feel relaxed. For this reason, foot massage therapy has been widely used worldwide for the treatment.
  • feet and legs are also called 'second heart' because it acts to raise blood towards the heart when walking. The feet support the weight and provide the driving force and direction needed to move the body. As a result, it absorbs physical shocks, maintains the safety of the foot itself while performing various functions such as adapting to the ground and maintaining balance in response to movement of the body's center of gravity.
  • the feet are associated with a woman's physiological cause: a small heart and slow blood circulation. Nearly all women have cold abdominal pain, and their hands and feet are often cold. In clinical practice, women have many varicose veins associated with pregnancy. In addition, there are not many varicose veins in women and men who are not pregnant because of the lack of normal exercise and blood circulation is predicted to occur. Women also prefer high-heeled heels because they value their appearance and fashion. High heels have a high back heel, so the front part of the foot shows a temperature difference of 4-5 ° C lower than the heel temperature.
  • the present inventors can apply to shoes such as combat shoes, hiking boots, sneakers, etc., and developed a winter protection shoes that can keep the feet warm by blocking the cold air from the ground in winter, the patent application No. 2016-148764 (2016. 11. 8th application).
  • the shoe insole of the present invention has been developed for the purpose of improving the blood circulation of the foot in walking, driving, etc. in the workplace, commute, and the like.
  • the temperature of the front part of the foot and the heel was about 2 to 5 ° C when most shoes including shoes were worn.
  • the front of the foot was about 2 to 5 °C higher than the heel. This temperature difference is believed to be due to poor circulation. Therefore, the present inventors add a heat conduction function to the shoe insole in order to solve the above problems by improving the blood circulation of the foot to reduce the temperature difference between the front and heel of the foot to improve the health of the present invention (Insole It is early to develop).
  • An object of the present invention is to provide a new shoe insole that can improve the blood circulation of the foot by equalizing the temperature difference between the front and heel of the shoe.
  • Another object of the present invention is to provide various shoe insoles that are simple in manufacturing process and inexpensive to manufacture, so as to improve the blood circulation of the foot by using heat conduction to keep the foot warm.
  • EVA Ethylene Vinyl Acetate Copolymer
  • PE polyethylene
  • restoring sponge a restoring sponge
  • the shoe insole of the present invention is bonded by inserting the thermal conductive sheet 20 between the EVA sponge 10 and the PE fiber and the restoration sponge 30, the thermal conductive sheet 20 is also called expanded graphite sheet (aka 'graphite')
  • the fluorine film 22 is adhered to both surfaces.
  • the thermal conductive sheet 20 is sewn into the seam 221 seam 222 along the edge.
  • the seam 21 is finished in the form of "c”, and then sewn with a thread of polytetrafluoro ethylene (PTFE) in the middle portion to form a seam (222).
  • PTFE polytetrafluoro ethylene
  • thermally conductive sheet 20 may be used in the present invention in a multi-layered structure by inserting the carbon fiber sheet 23 between the two sheets of expanded graphite sheet to which the fluorine film 22 is bonded.
  • the seam 221 is sewn into the seam 222 along the edge of the heat conductive sheet 20.
  • the seam 21 is finished in the form of "c”, and then sewn with a PTFE seal in the middle portion to form a seam 222.
  • the expanded graphite sheet 21 has a low thermal conductivity in the Z-axis and a high thermal conductivity in the X- and Y-axis, that is, in the plane direction, thereby eliminating the difference between the front and heel temperature of the shoe to improve the blood circulation of the foot. It can manufacture.
  • the thermal conductivity which is a characteristic of the expanded graphite that is, the thermal conductivity is reduced on the Z axis and the specific resistance value is Larger, by increasing the thermal conductivity delivered to the X-axis and Y-axis, and by reducing the specific resistance value can improve the blood circulation of the foot by eliminating the temperature difference between the front and heel of the shoe to improve health.
  • the present invention provides an insole that can improve the health by improving the blood circulation of the foot by eliminating the temperature difference by the isothermal effect of the temperature environment changes before and after the shoe, the manufacturing process is simple and the manufacturing cost is not expensive It has the effect of providing the insole of various shoes such as shoes, hiking boots, sneakers and the like.
  • FIG. 1 is a schematic perspective view of an insole 100 used in a shoe.
  • Figure 2 is a schematic exploded perspective view of Figure 1, a view showing the internal structure of the shoe insole 100 according to the present invention.
  • FIG 3 is a perspective view of the shoe insole 100 according to the present invention, the seam 21 is finished along the edge of the "c" shape and shows that the seam 222 is formed by sewing with PTFE thread in the middle portion thereof. It is a figure.
  • FIG. 4 is a schematic cross-sectional view showing a cross-sectional structure of the heat conductive sheet 20 of the present invention.
  • FIG. 5 is a schematic cross-sectional view showing a cross-sectional structure of a thermally conductive sheet of another embodiment made of a multilayer structure by inserting a carbon fiber sheet 23 between two sheets of expanded graphite sheet to which the fluorine film 22 is bonded.
  • the present invention relates to a shoe insole, such as men's shoes, ladies' shoes, long boots, combat shoes, hiking boots, sneakers, etc., to reduce the temperature difference between the front and back of the foot to improve the blood circulation of the foot to promote health.
  • the present invention improves the blood circulation of the foot by inserting the thermal conductive sheet 20 using the expanded graphite sheet 21 in the middle of the insole of the shoe to provide a shoe insole to reduce the temperature difference between the front and rear of the foot and shoes by ignition, walking and exercise It is to improve health by improving blood circulation.
  • FIG. 1 is a schematic perspective view of the insole 100 used for shoes
  • Figure 2 is a schematic exploded perspective view of Figure 1, showing the internal structure of the shoe insole 100 according to the present invention.
  • FIG. 3 is a perspective view of the shoe insole 100 according to the present invention, the seam 21 is finished along the edge of the "c" shape and shows that the seam 222 is formed by sewing with PTFE thread in the middle portion thereof. It is a figure.
  • the thermal conductive sheet 20 is sewn into the seam 221 seam 222 along the edge.
  • the seam 21 is finished in the form of "c”, and then sewn with a thread of PTFE in the middle portion to form a seam 222.
  • 4 is a schematic cross-sectional view showing a cross-sectional structure of the heat conductive sheet 20 of the present invention.
  • FIG. 5 is a schematic cross-sectional view showing a cross-sectional structure of a thermally conductive sheet of another embodiment made of a multilayer structure by inserting a carbon fiber sheet 23 between two sheets of expanded graphite sheet to which the fluorine film 22 is bonded.
  • the seam 221 is sewn into the seam 222 along the edge of the heat conductive sheet 20.
  • the seam 21 is finished in the form of "c", and then sewn with a PTFE seal in the middle portion to form a seam 222.
  • the expanded graphite sheet 21 has a low thermal conductivity in the Z-axis and a high thermal conductivity in the X- and Y-axis, that is, in the plane direction, thereby eliminating the difference between the front and heel temperature of the shoe to improve the blood circulation of the foot. It can manufacture.
  • the thermal conductivity which is a characteristic of the expanded graphite that is, the thermal conductivity is reduced on the Z axis and the specific resistance value is Larger, by increasing the thermal conductivity delivered to the X-axis and Y-axis, and by reducing the specific resistance value can improve the blood circulation of the foot by eliminating the temperature difference between the front and heel of the shoe to improve health.
  • the expanded graphite sheet has a low thermal conductivity in the Z-axis, high thermal conductivity in the X-axis and Y-axis, that is, the plane direction, and conducts heat to the heel of the foot and heats the body temperature and walking motion in the front of the foot.
  • the expanded graphite sheet 21 used in the present invention can be purchased and used commercially available, the mainstream is that the thickness is 0.2 mm, 0.5 mm or 1.0 mm.
  • the physical properties of the expanded graphite sheets having a thickness of 0.2 mm and 0.5 mm preferably satisfy the ranges in the following table.
  • the expanded graphite sheet has a planar thermal conductivity of 200 to 300 w / mk, a thickness direction thermal conductivity of 5 to 9 w / mk, a planar resistivity of 6 to 7 ⁇ m, and a thickness direction resistivity of 1000 to 1300 ⁇ m. Do.
  • the insole-shaped heat conductive sheet 20 made of the expanded graphite sheet 21 is integrally bonded by being inserted between the EVA sponge 10 of the shoe insole and the PE fiber and the restoring sponge 30, but deformed or torn during shoe wearing. Easy to lose Since the shoes are always subjected to a large load by the weight, such deformation or tearing can easily occur, and the expanded graphite sheet 21 generally has a weak brittleness. In order to compensate for this, the fluorine film 22 is further adhered to both sides of the expanded graphite sheet 21.
  • the fluorine film 22 can use what is marketed by the film of about 10 micrometers in thickness.
  • the fluorine film can be easily adhered to the expanded graphite sheet 21 using an adhesive.
  • the fluorine film has high compression and tensile strength and good flexibility to reinforce the brittleness of the expanded graphite sheet 21 and prevent deformation.
  • the carbon fiber sheet 23 may be inserted between two sheets of the expanded graphite sheet to which the fluorine film 22 is attached, and thus may be manufactured in a multilayer structure.
  • FIG. 5 is a schematic cross-sectional view showing a cross-sectional structure of a cold protection sheet of another embodiment having a multilayer structure by inserting a carbon fiber sheet 23 between two sheets of expanded graphite sheet to which the fluorine film 22 is bonded.
  • the carbon fiber sheet 23 is a woven carbon fiber, and preferably has a thickness of 0.1 to 0.12 mm. Carbon fiber sheet is used for the purpose of supplementing the flexibility and brittleness of the expanded graphite sheet and reinforcing durability.
  • the temperature measured at the front of the left foot wearing socks at the room temperature of 20.9 ° C was 32.1 ° C to 31.4 ° C, and the rear part was 29.8 ° C to 29.6 ° C, and the temperature difference was 2.3 ° C to 1.8 ° C.
  • the left side was worn with conventional gentle shoes without a thermally conductive sheet, and the right side was attached with an insole with a 0.5 mm thermally conductive sheet inserted between the EVA sponge and PE fibers and the restoring sponge.
  • the temperature difference between the front and back of the insole is 0.3 ° C. to 0.1 ° C.
  • the temperature difference between front and rear was small by heat conduction. This causes the heat generated by the frictional force between the insole and the foot to be transferred by the thermally conductive sheet from the high to the low to the low to high parts, ie the front and rear of the shoe insole by the isothermal effect. It can be seen that the temperature difference is small to promote the blood circulation of the foot.
  • the present invention is applied to shoe insoles, such as men's shoes, ladies shoes, boots, combat shoes, hiking shoes, sneakers, etc. to provide a shoe insole that can improve the blood circulation of the foot by keeping the temperature difference between the front and heel of the foot as uniform as possible.
  • the shoe insole of the present invention may be integrally attached to the main body of the shoe to complete the shoe, or may be used by being inserted into the finished shoe.

Abstract

A shoe insole of the present invention is characterized in that a heat conductive sheet (20) is inserted between an EVA sponge (10), and a PE fiber and restoration sponge (30), and is adhered, and in that the heat conductive sheet (20) allows a fluorine film (22) to be bonded to both surfaces of an expanded graphite sheet (also called "graphite") (21). The heat conductive sheet (20) allows a seam part (221) to be backstitched to a sewing line (222) along an edge. The seam part (21) is finished in a "right-side-open rectangular" shape, and then, is sewn with a polytetrafluoro ethylene (PTFE) thread in the middle part thereof so as to form the sewing line (222). Another specific example of the heat conductive sheet (20) can be used in the present invention, wherein a carbon fiber sheet (23) is inserted between two sheets of the expanded graphite sheet to which the fluorine film (22) is bonded so as to be produced as a multilayer structure.

Description

팽창흑연 시트를 이용한 신발 깔창Shoe Insole with Expanded Graphite Sheet
본 발명은 신사화, 숙녀화, 부츠, 전투화, 등산화, 운동화 등과 같은 신발 깔창에 관한 것이다. 보다 구체적으로, 본 발명은 발의 앞부분과 뒤꿈치의 온도차를 가능한 한 균일하게 유지하여 발의 혈액순환을 좋게 할 수 있는 신발 깔창에 관한 것이다.The present invention relates to shoe insoles such as men's shoes, ladies' shoes, boots, combat shoes, hiking boots, sneakers and the like. More specifically, the present invention relates to a shoe insole that can improve the blood circulation of the foot by keeping the temperature difference between the front and heel of the foot as uniform as possible.
발은 52개의 뼈, 66개의 관절, 40개의 근육, 82개의 인대로 이루어져 있다. 그리고 수많은 신경과 혈관이 섬세하게 조화를 이룬 ‘인체의 주춧돌’이다. 이중 하나라도 잘못되면 발은 통증을 느끼며 걸음걸이가 이상해진다. 또한, 발에는 많은 신경들이 분포되어 있다. 발에 있는 신경들을 자극해주면 머리가 맑아지고 스트레스가 풀리는 것을 느끼게 된다. 이런 원인으로 발마사지 요법이 세계적으로 널리 전파되어 치료에 이용되고 있는 실정이다.The foot consists of 52 bones, 66 joints, 40 muscles, and 82 ligaments. It is also the “stone of the human body” in which numerous nerves and blood vessels are delicately harmonized. If any of them go wrong, your feet will feel pain and your gait will go wrong. Also, many nerves are distributed in the foot. Stimulating the nerves in your feet will clear your head and make you feel relaxed. For this reason, foot massage therapy has been widely used worldwide for the treatment.
우리가 일상생활 중에서 발에 조금만 주의를 기울이고 노력하면 건강한 발을 보전할 수 있다. 발에 무리가 가지 않게 자기건강에 맞게 체중을 유지하고 또 발이 상하지 않게 하기 위하여 자기 발에 맞는 걸음걸이를 교정하는 것은 건강한 육체를 위해서도 매우 중요한 의미를 갖는다. 걸을 때 발은 체중의 80%를 받으므로 1 km를 걸을 때, 약 16 t의 무게를 지탱한다. 한편 발과 다리는 걸을 때 피를 심장 쪽으로 올려주는 작용을 하기 때문에 '제2의 심장'이라고도 한다. 발은 체중을 지지하고, 몸을 이동시키는 데 필요한 추진력과 진행방향을 제공한다. 그로 인하여 물리적 충격을 흡수하고, 지면에 대한 적응 및 신체의 무게 중심 이동에 반응하여 균형을 유지하는 등 여러 기능을 담당하는 동시에 발 자체의 안전성을 유지하는 역할을 한다.If we pay little attention and effort in our daily lives, we can preserve healthy feet. It is very important for a healthy body to correct the gait that fits your feet so that you do not overwhelm your feet and keep your weight in order to keep your feet healthy. When you walk, your feet receive 80% of your weight, so when you walk 1 km, you carry about 16 tons of weight. On the other hand, feet and legs are also called 'second heart' because it acts to raise blood towards the heart when walking. The feet support the weight and provide the driving force and direction needed to move the body. As a result, it absorbs physical shocks, maintains the safety of the foot itself while performing various functions such as adapting to the ground and maintaining balance in response to movement of the body's center of gravity.
심장으로부터 가장 먼 곳에 있기 때문에 혈액순환이 나빠지면 수족냉증, 즉 손과 발이 차가워진다. 또한, 발은 사람의 신체에서 제일 아래 있으면서 몸을 움직일 때 중요한 역할을 한다.Because it is farthest from the heart, poor blood circulation leads to cold hands and feet, or cold hands and feet. In addition, the foot plays an important role when the body moves at the bottom of the human body.
특히 여성의 경우, 발은 여성 특유의 생리적인 원인 즉 심장이 작고 혈액순환이 천천히 진행되는 것과 연관된다. 거의 모든 여성들은 하복부 냉증을 갖고 있으며 손과 발이 그중에서도 발이 찬 경우가 많다. 임상에서 관찰해보면 여성은 임신과 연관되어 하지정맥류가 많다. 또한 임신하지 않은 여성과 남성들에서도 하지정맥류가 적지 않게 발견되고 있는데 그 이유는 정상적으로 운동을 하지 않아 혈액순환이 잘 안되어 생기는 것으로 예측되고 있다. 또한, 여성의 경우, 외모 및 패션을 중시하기 때문에 굽이 높은 하이힐을 선호한다. 하이힐의 경우 뒷부분의 굽이 높아 발의 앞부분이 발 뒤꿈치의 온도보다 4-5 ℃ 낮은 온도차를 나타내고 있다.Especially in women, the feet are associated with a woman's physiological cause: a small heart and slow blood circulation. Nearly all women have cold abdominal pain, and their hands and feet are often cold. In clinical practice, women have many varicose veins associated with pregnancy. In addition, there are not many varicose veins in women and men who are not pregnant because of the lack of normal exercise and blood circulation is predicted to occur. Women also prefer high-heeled heels because they value their appearance and fashion. High heels have a high back heel, so the front part of the foot shows a temperature difference of 4-5 ° C lower than the heel temperature.
발에 땀이 많이 나는 사람들은 거의 남자들이고 발이 찬 사람은 여성이 많다. 그렇다고 남자도 발이 찬 사람이 없다는 말은 아닌데 발은 심장과 연관되어 있다. 손발이 따뜻한 사람을 살펴보면 심장에 다른 질병이 없고 혈액순환이 좋다. 그러나 현대인들은 직장생활, 사업 등으로 인하여 운동을 할 수 있는 시간을 할애하기가 어려운 실정이다.Most people sweat a lot, and many people are cold. This doesn't mean that no man is cold, but feet are linked to the heart. If you look at people with warm hands and feet, there is no other disease in the heart and good blood circulation. However, it is difficult for modern people to spend time to exercise due to work life and business.
본 발명자는 전투화, 등산화, 운동화 등과 같은 신발에 적용할 수 있고, 동절기에 지면으로부터의 냉기를 차단하여 발을 따듯하게 유지할 수 있는 방한용 신발을 개발하여 특허출원 제2016-148764호(2016. 11. 8일 출원)로 출원한 바 있다.The present inventors can apply to shoes such as combat shoes, hiking boots, sneakers, etc., and developed a winter protection shoes that can keep the feet warm by blocking the cold air from the ground in winter, the patent application No. 2016-148764 (2016. 11. 8th application).
본 발명에서는 직장내, 출퇴근길 등에서의 보행, 운전 등에 있어 발의 혈액순환을 좋게 할 목적으로 본 발명의 신발 깔창을 개발하기에 이른 것이다. 측정 결과, 신사화를 비롯한 대부분의 신발을 착용한 상태에서 발의 앞부분과 뒤꿈치의 온도가 약 2∼5 ℃ 정도 차이가 나는 것으로 나타났다. 일반적으로 발의 앞부분이 뒤꿈치보다 약 2∼5 ℃ 정도 높게 나타났다. 이러한 발의 온도차는 혈액순환이 원활하지 못한 데에서 기인하는 것으로 추측된다. 따라서 본 발명자는 상기와 같은 문제점을 해결하기 위하여 신발 깔창에 열전도 기능을 부가하여 족부의 혈행을 개선하여 발의 앞부분과 뒤꿈치의 온도차를 줄임으로써 건강증진을 함양할 수 있는 본 발명의 새로운 신발 깔창(Insole)을 개발하기에 이른 것이다.In the present invention, the shoe insole of the present invention has been developed for the purpose of improving the blood circulation of the foot in walking, driving, etc. in the workplace, commute, and the like. As a result of the measurement, the temperature of the front part of the foot and the heel was about 2 to 5 ° C when most shoes including shoes were worn. In general, the front of the foot was about 2 to 5 ℃ higher than the heel. This temperature difference is believed to be due to poor circulation. Therefore, the present inventors add a heat conduction function to the shoe insole in order to solve the above problems by improving the blood circulation of the foot to reduce the temperature difference between the front and heel of the foot to improve the health of the present invention (Insole It is early to develop).
본 발명의 목적은 신발의 앞부분과 뒤꿈치의 온도차를 균등하게 하여 발의 혈액순환을 좋게 할 수 있는 새로운 신발 깔창을 제공하기 위한 것이다.An object of the present invention is to provide a new shoe insole that can improve the blood circulation of the foot by equalizing the temperature difference between the front and heel of the shoe.
본 발명의 다른 목적은 열전도를 이용하여 발의 혈액순환를 좋게 하여 발을 따듯하게 유지할 수 있도록 제조공정이 간단하고 제조비용이 비싸지 않은 각종 신발 깔창을 제공하기 위한 것이다.Another object of the present invention is to provide various shoe insoles that are simple in manufacturing process and inexpensive to manufacture, so as to improve the blood circulation of the foot by using heat conduction to keep the foot warm.
본 발명의 상기 및 기타의 목적들은 하기 상세히 설명되는 본 발명에 의하여 모두 달성될 수 있다.The above and other objects of the present invention can be achieved by the present invention described in detail below.
신발 깔창은 대부분이 EVA(Ethylene Vinyl Acetate Copolymer) 스폰지와 PE(polyethylene) 섬유 및 복원 스폰지를 접착하여 제조되고, 신발 바닥에 접착하여 신발을 완성한다. 본 발명의 신발 깔창은 EVA 스폰지(10)와 PE 섬유 및 복원 스폰지(30) 사이에 열전도 시트(20)를 삽입하여 접착한 것으로, 상기 열전도 시트(20)는 팽창흑연 시트(일명 ‘그라파이트’라고도 함)(21) 양면에 불소필름(22)을 접착한 것을 그 특징으로 한다.Most shoe insoles are manufactured by bonding an EVA (Ethylene Vinyl Acetate Copolymer) sponge, a PE (polyethylene) fiber and a restoring sponge, and then attaching them to the bottom of the shoe to complete the shoe. The shoe insole of the present invention is bonded by inserting the thermal conductive sheet 20 between the EVA sponge 10 and the PE fiber and the restoration sponge 30, the thermal conductive sheet 20 is also called expanded graphite sheet (aka 'graphite') The fluorine film 22 is adhered to both surfaces.
열전도 시트(20)는 모서리를 따라 솔기부(221)가 봉제선(222)으로 박음질 된다. 솔기부(21)는 “ㄷ”자 형태로 마감한 후, 중간부분에서 PTFE(Polytetrafluoro Ethylene)의 실로 봉제하여 봉제선(222)을 형성한다.The thermal conductive sheet 20 is sewn into the seam 221 seam 222 along the edge. The seam 21 is finished in the form of "c", and then sewn with a thread of polytetrafluoro ethylene (PTFE) in the middle portion to form a seam (222).
열전도 시트(20)의 다른 구체예로는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 제작한 것도 본 발명에 사용될 수 있다. 이 경우의 열전도 시트(20)도 모서리를 따라 솔기부(221)가 봉제선(222)으로 박음질 된다. 솔기부(21)는 “ㄷ”자 형태로 마감한 후, 중간부분에서 PTFE 실로 봉제하여 봉제선(222)을 형성한다.Another embodiment of the thermally conductive sheet 20 may be used in the present invention in a multi-layered structure by inserting the carbon fiber sheet 23 between the two sheets of expanded graphite sheet to which the fluorine film 22 is bonded. In this case, the seam 221 is sewn into the seam 222 along the edge of the heat conductive sheet 20. The seam 21 is finished in the form of "c", and then sewn with a PTFE seal in the middle portion to form a seam 222.
팽창흑연 시트(21)는 Z축으로의 열전도율이 적고, X축과 Y축 즉, 면 방향으로의 열전도율이 높은 것에 착안하여 신발의 앞부분과 뒤꿈치 온도차를 없애줌으로써 발의 혈액순환을 좋게 하는 신발 깔창을 제조할 수 있다. 신발 깔창(100)의 EVA 스폰지(10)와 PE 섬유 및 복원 스폰지(30) 사이에 열전도 시트(20)를 삽입하여 팽창흑연의 특성인 열전도을 이용하여, 즉 Z축으로 열전도율이 작아지고 비저항값은 커지며, X축 및 Y축으로 전달하는 열전도율이 커지고 비저항값이 작아지는 것을 활용하여 신발의 앞부분과 뒤꿈치 온도차를 없애줌으로써 발의 혈액순환을 좋게 하여 건강을 증진할 수 있다.The expanded graphite sheet 21 has a low thermal conductivity in the Z-axis and a high thermal conductivity in the X- and Y-axis, that is, in the plane direction, thereby eliminating the difference between the front and heel temperature of the shoe to improve the blood circulation of the foot. It can manufacture. By inserting the thermal conductive sheet 20 between the EVA sponge 10 of the shoe insole 100 and the PE fiber and the restoring sponge 30, using the thermal conductivity which is a characteristic of the expanded graphite, that is, the thermal conductivity is reduced on the Z axis and the specific resistance value is Larger, by increasing the thermal conductivity delivered to the X-axis and Y-axis, and by reducing the specific resistance value can improve the blood circulation of the foot by eliminating the temperature difference between the front and heel of the shoe to improve health.
이하 첨부된 도면을 참고로 본 발명의 구체적인 내용에 대하여 하기에 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the specific content of the present invention.
본 발명은 신발의 앞뒤의 온도 환경변화에 따른 등온효과(Isothermal Effect)에 의해 온도차를 없애줌으로써 발의 혈행을 좋게 하여 건강을 증진할 수 있는 깔창을 제공하고, 제조공정이 간단하고 제조비용이 비싸지 않으며 구두, 등산화, 운동화 등과 같은 각종 신발의 깔창을 제공하는 발명의 효과를 갖는다.The present invention provides an insole that can improve the health by improving the blood circulation of the foot by eliminating the temperature difference by the isothermal effect of the temperature environment changes before and after the shoe, the manufacturing process is simple and the manufacturing cost is not expensive It has the effect of providing the insole of various shoes such as shoes, hiking boots, sneakers and the like.
도 1는 신발에 사용되는 깔창(100)의 개략적인 사시도이다.1 is a schematic perspective view of an insole 100 used in a shoe.
도 2는 도 1의 개략적인 분해사시도로서, 본 발명에 따른 신발 깔창(100)의 내부 구조를 도시하기 위한 도면이다.Figure 2 is a schematic exploded perspective view of Figure 1, a view showing the internal structure of the shoe insole 100 according to the present invention.
도 3은 본 발명에 따른 신발 깔창(100)의 사시도로서, 모서리를 따라 솔기부(21)가 “ㄷ”자 형태로 마감되고 그 중간부분에서 PTFE 실로 봉제하여 봉제선(222)을 형성한 것을 도시하는 도면이다.3 is a perspective view of the shoe insole 100 according to the present invention, the seam 21 is finished along the edge of the "c" shape and shows that the seam 222 is formed by sewing with PTFE thread in the middle portion thereof. It is a figure.
도 4는 본 발명의 열전도 시트(20)의 단면 구조를 도시하는 개략적인 단면도이다.4 is a schematic cross-sectional view showing a cross-sectional structure of the heat conductive sheet 20 of the present invention.
도 5는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 이루어진 다른 구체예의 열전도 시트의 단면 구조를 도시하는 개략적인 단면도이다.FIG. 5 is a schematic cross-sectional view showing a cross-sectional structure of a thermally conductive sheet of another embodiment made of a multilayer structure by inserting a carbon fiber sheet 23 between two sheets of expanded graphite sheet to which the fluorine film 22 is bonded.
본 발명은 신사화, 숙녀화, 롱부츠, 전투화, 등산화, 운동화 등과 같은 신발의 깔창에 관한 것으로, 발의 앞부분과 뒷부분의 온도차를 적게 하여 족부의 혈액순환을 원활히 하여 건강을 증진시키는데 있다. 본 발명은 팽창흑연 시트(21)를 이용한 열전도 시트(20)를 신발의 깔창 중간에 삽입하여 착화, 보행 및 운동에 의한 발 및 신발의 앞뒤 온도차를 적게 하는 신발 깔창을 제공하여 발의 혈행을 개선하여 혈액순환을 좋게 하여 건강을 증진하는데 있다.The present invention relates to a shoe insole, such as men's shoes, ladies' shoes, long boots, combat shoes, hiking boots, sneakers, etc., to reduce the temperature difference between the front and back of the foot to improve the blood circulation of the foot to promote health. The present invention improves the blood circulation of the foot by inserting the thermal conductive sheet 20 using the expanded graphite sheet 21 in the middle of the insole of the shoe to provide a shoe insole to reduce the temperature difference between the front and rear of the foot and shoes by ignition, walking and exercise It is to improve health by improving blood circulation.
신발 깔창은 대부분이 EVA(Ethylene Vinyl Acetate Copolymer) 스폰지와 PE 섬유 및 복원 스폰지를 접착하여 제조되고, 신발 바닥에 접착하여 신발을 완성한다. 본 발명의 신발 깔창은 EVA 스폰지(10)와 PE 섬유 및 복원 스폰지(30) 사이에 열전도 시트(20)를 삽입하여 접착한 것으로, 상기 열전도 시트(20)는 팽창흑연 시트(일명 ‘그라파이트’라고도 함)(21) 양면에 불소필름(22)을 접착한 것을 그 특징으로 한다. 도 1은 신발에 사용되는 깔창(100)의 개략적인 사시도이고, 도 2는 도 1의 개략적인 분해사시도로서, 본 발명에 따른 신발 깔창(100)의 내부 구조를 도시하기 위한 도면이다.Most shoe insoles are manufactured by bonding EVA (Ethylene Vinyl Acetate Copolymer) sponges with PE fibers and restoration sponges, and attaching them to the soles of the shoes to complete the shoes. The shoe insole of the present invention is bonded by inserting the thermal conductive sheet 20 between the EVA sponge 10 and the PE fiber and the restoration sponge 30, the thermal conductive sheet 20 is also called expanded graphite sheet (aka 'graphite') The fluorine film 22 is adhered to both surfaces. Figure 1 is a schematic perspective view of the insole 100 used for shoes, Figure 2 is a schematic exploded perspective view of Figure 1, showing the internal structure of the shoe insole 100 according to the present invention.
도 3은 본 발명에 따른 신발 깔창(100)의 사시도로서, 모서리를 따라 솔기부(21)가 “ㄷ”자 형태로 마감되고 그 중간부분에서 PTFE 실로 봉제하여 봉제선(222)을 형성한 것을 도시하는 도면이다. 열전도 시트(20)는 모서리를 따라 솔기부(221)가 봉제선(222)으로 박음질 된다. 솔기부(21)는 “ㄷ”자 형태로 마감한 후, 중간부분에서 PTFE의 실로 봉제하여 봉제선(222)을 형성한다. 도 4는 본 발명의 열전도 시트(20)의 단면 구조를 도시하는 개략적인 단면도이다.3 is a perspective view of the shoe insole 100 according to the present invention, the seam 21 is finished along the edge of the "c" shape and shows that the seam 222 is formed by sewing with PTFE thread in the middle portion thereof. It is a figure. The thermal conductive sheet 20 is sewn into the seam 221 seam 222 along the edge. The seam 21 is finished in the form of "c", and then sewn with a thread of PTFE in the middle portion to form a seam 222. 4 is a schematic cross-sectional view showing a cross-sectional structure of the heat conductive sheet 20 of the present invention.
열전도 시트(20)의 다른 구체예로는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 제작한 것도 본 발명에 사용될 수 있다. 도 5는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 이루어진 다른 구체예의 열전도 시트의 단면 구조를 도시하는 개략적인 단면도이다. 이 경우의 열전도 시트(20)도 모서리를 따라 솔기부(221)가 봉제선(222)으로 박음질 된다. 솔기부(21)는 “ㄷ”자 형태로 마감한 후, 중간부분에서 PTFE 실로 봉제하여 봉제선(222)을 형성한다.Another embodiment of the thermally conductive sheet 20 may be used in the present invention in a multi-layered structure by inserting the carbon fiber sheet 23 between the two sheets of expanded graphite sheet to which the fluorine film 22 is bonded. FIG. 5 is a schematic cross-sectional view showing a cross-sectional structure of a thermally conductive sheet of another embodiment made of a multilayer structure by inserting a carbon fiber sheet 23 between two sheets of expanded graphite sheet to which the fluorine film 22 is bonded. In this case, the seam 221 is sewn into the seam 222 along the edge of the heat conductive sheet 20. The seam 21 is finished in the form of "c", and then sewn with a PTFE seal in the middle portion to form a seam 222.
팽창흑연 시트(21)는 Z축으로의 열전도율이 적고, X축과 Y축 즉, 면 방향으로의 열전도율이 높은 것에 착안하여 신발의 앞부분과 뒤꿈치 온도차를 없애줌으로써 발의 혈액순환을 좋게 하는 신발 깔창을 제조할 수 있다. 신발 깔창(100)의 EVA 스폰지(10)와 PE 섬유 및 복원 스폰지(30) 사이에 열전도 시트(20)를 삽입하여 팽창흑연의 특성인 열전도을 이용하여, 즉 Z축으로 열전도율이 작아지고 비저항값은 커지며, X축 및 Y축으로 전달하는 열전도율이 커지고 비저항값이 작아지는 것을 활용하여 신발의 앞부분과 뒤꿈치 온도차를 없애줌으로써 발의 혈액순환을 좋게 하여 건강을 증진할 수 있다.The expanded graphite sheet 21 has a low thermal conductivity in the Z-axis and a high thermal conductivity in the X- and Y-axis, that is, in the plane direction, thereby eliminating the difference between the front and heel temperature of the shoe to improve the blood circulation of the foot. It can manufacture. By inserting the thermal conductive sheet 20 between the EVA sponge 10 of the shoe insole 100 and the PE fiber and the restoring sponge 30, using the thermal conductivity which is a characteristic of the expanded graphite, that is, the thermal conductivity is reduced on the Z axis and the specific resistance value is Larger, by increasing the thermal conductivity delivered to the X-axis and Y-axis, and by reducing the specific resistance value can improve the blood circulation of the foot by eliminating the temperature difference between the front and heel of the shoe to improve health.
팽창흑연 시트는 Z축으로의 열전도율이 적고, X축과 Y축 즉, 면 방향으로의 열전도율이 높은 것에 착안하여 족부의 앞부분의 체온과 보행 동작에 의한 열을 발의 뒤꿈치 부분으로 열전도하고 다시 뒷부분의 열을 앞으로 이동시키는 열전도 반복운동에 의하여 형성되는 등온효과(Isothermal Effect)에 의해 발의 앞뒤 온도차가 작아지게 되어 혈행을 개선하는 효과를 갖는다.The expanded graphite sheet has a low thermal conductivity in the Z-axis, high thermal conductivity in the X-axis and Y-axis, that is, the plane direction, and conducts heat to the heel of the foot and heats the body temperature and walking motion in the front of the foot. By the isothermal effect formed by the heat conduction repetitive motion of moving the heat forward, the temperature difference between the front and the back of the foot is reduced, thereby improving blood circulation.
본 발명에서 사용되는 팽창흑연 시트(21)는 시판되는 것을 구입하여 사용할 수 있으며, 그 두께가 0.2 mm, 0.5 mm 또는 1.0 mm인 것이 주류를 이룬다. 두께가 0.2 mm 및 0.5 mm인 팽창흑연 시트의 물성은 하기 표의 범위를 충족하는 것이 바람직하다.The expanded graphite sheet 21 used in the present invention can be purchased and used commercially available, the mainstream is that the thickness is 0.2 mm, 0.5 mm or 1.0 mm. The physical properties of the expanded graphite sheets having a thickness of 0.2 mm and 0.5 mm preferably satisfy the ranges in the following table.
표 1
Figure PCTKR2017006163-appb-T000001
 Table 1
Figure PCTKR2017006163-appb-T000001
상기 팽창흑연 시트는 면방향 열전도율이 200 내지 300 w/mk이고, 두께방향 열전도율이 5 내지 9 w/mk이고, 면방향 비저항이 6 내지 7 μΩm이고, 두께방향 비저항이 1000 내지 1300 μΩm인 것이 바람직하다.The expanded graphite sheet has a planar thermal conductivity of 200 to 300 w / mk, a thickness direction thermal conductivity of 5 to 9 w / mk, a planar resistivity of 6 to 7 µm, and a thickness direction resistivity of 1000 to 1300 µm. Do.
팽창흑연 시트(21)로 이루어진 깔창 모양의 열전도 시트(20)는 신발의 깔창의 EVA 스폰지(10)와 PE 섬유 및 복원 스폰지(30) 사이에 삽입하여 일체로 접착되지만, 신발 착용 중에 변형되거나 찢어지기 쉽다. 신발은 체중에 의하여 항상 많은 부하를 받기 때문에 이러한 변형이나 파열이 쉽게 일어날 수 있으며, 또한 팽창흑연 시트(21)는 일반적으로 취성이 약한 결점이 있다. 이를 보완하기 위하여 팽창흑연 시트(21) 양면에 불소필름(22)을 더 접착한다.The insole-shaped heat conductive sheet 20 made of the expanded graphite sheet 21 is integrally bonded by being inserted between the EVA sponge 10 of the shoe insole and the PE fiber and the restoring sponge 30, but deformed or torn during shoe wearing. Easy to lose Since the shoes are always subjected to a large load by the weight, such deformation or tearing can easily occur, and the expanded graphite sheet 21 generally has a weak brittleness. In order to compensate for this, the fluorine film 22 is further adhered to both sides of the expanded graphite sheet 21.
불소필름(22)은 두께 10 ㎛ 정도의 필름으로 시판되는 것을 사용할 수 있다. 불소필름은 접착제를 이용하여 팽창흑연 시트(21)에 용이하게 접착할 수 있다. 불소필름은 압축 및 인장강도가 크고 유연성이 양호하여 팽창흑연 시트(21)의 취성을 보강하고 변형을 방지한다.The fluorine film 22 can use what is marketed by the film of about 10 micrometers in thickness. The fluorine film can be easily adhered to the expanded graphite sheet 21 using an adhesive. The fluorine film has high compression and tensile strength and good flexibility to reinforce the brittleness of the expanded graphite sheet 21 and prevent deformation.
또한 본 발명에서는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 제작할 수도 있다. 도 5는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 이루어진 다른 구체예의 방한 시트의 단면 구조를 도시하는 개략적인 단면도이다.In addition, in the present invention, the carbon fiber sheet 23 may be inserted between two sheets of the expanded graphite sheet to which the fluorine film 22 is attached, and thus may be manufactured in a multilayer structure. FIG. 5 is a schematic cross-sectional view showing a cross-sectional structure of a cold protection sheet of another embodiment having a multilayer structure by inserting a carbon fiber sheet 23 between two sheets of expanded graphite sheet to which the fluorine film 22 is bonded.
탄소섬유 시트(23)는 탄소섬유를 직조한 것으로, 0.1 내지 0.12 mm의 두께를 갖는 것이 바람직하다. 탄소섬유 시트는 팽창흑연 시트의 단점인 유연성과 취성을 보완하고 내구성을 보강하는 목적으로 사용된다.The carbon fiber sheet 23 is a woven carbon fiber, and preferably has a thickness of 0.1 to 0.12 mm. Carbon fiber sheet is used for the purpose of supplementing the flexibility and brittleness of the expanded graphite sheet and reinforcing durability.
본 발명은 하기의 실시예에 의해 더 잘 이해될 수 있으며, 하기의 실시예는 본 발명의 예시를 위한 것일 뿐 특허청구범위의 보호범위를 제한하고자 하는 것이 아니다.The invention can be better understood by the following examples, which are intended to illustrate the invention and are not intended to limit the scope of the claims.
실시예Example
실내 온도 20.9 ℃에서 양말을 착용한 왼발의 앞부분에서 측정한 온도는 32.1 ℃∼31.4 ℃, 뒷부분은 29.8 ℃∼29.6 ℃로서, 온도차는 2.3 ℃∼1.8 ℃이었다. 기성품의 신사화 한 켤레 좌우를 준비한 후, 왼쪽은 열전도 시트를 삽입하지 않은 종래의 신사화를 착용하고, 오른쪽은 EVA 스폰지와 PE 섬유 및 복원 스폰지 사이에 열전도 시트 0.5 mm를 삽입한 깔창을 부착하였다.The temperature measured at the front of the left foot wearing socks at the room temperature of 20.9 ° C was 32.1 ° C to 31.4 ° C, and the rear part was 29.8 ° C to 29.6 ° C, and the temperature difference was 2.3 ° C to 1.8 ° C. After preparing a pair of ready-made gentle shoes left and right, the left side was worn with conventional gentle shoes without a thermally conductive sheet, and the right side was attached with an insole with a 0.5 mm thermally conductive sheet inserted between the EVA sponge and PE fibers and the restoring sponge.
온도측정 : 신사화를 착용하고 30분 동안 보행 전후, 깔창의 상부 전면과 후면의 표면온도를 적외선 온도측정기로 10회 측정결과, 팽창흑연 시트를 접착하지 않은 좌측의 경우에는 앞부분의 평균온도가 31.9 ℃∼27.6 ℃, 뒷부분의 평균온도가 27.3 ℃∼26.3 ℃로 측정되었고, 팽창흑연 시트를 접착한 우측의 경우의 앞부분의 평균온도는 30.7 ℃∼27.7 ℃, 뒷부분의 평균온도가 30.4 ℃∼27.8 ℃로 측정되었다. 즉, 본 발명의 실시예에서는 깔창에 열전도 시트인 팽창흑연 시트를 부착한 경우 깔창 앞뒤의 온도차 △0.3 ℃∼0.1 ℃ 팽창흑연 시트를 접착하지 않은 경우 깔창의 온도차 △4.6 ℃∼1.3 ℃로 열전도 시트를 부착한 깔창의 경우가 열전도에 의해 앞뒤의 온도차가 적은 것이 확인되었다. 이것은 깔창과 발 사이의 마찰력에 의해 발생된 열을 열전도 시트에 의해 온도가 높은 부분에서 낮은 부분으로 다시 낮은 부분에서 높은 부분으로 열이동하는 즉, 등온효과(Isothermal Effect)에 의해 신발 깔창의 앞뒤의 온도차가 작아져서 족부의 혈액순환 운동을 촉진시킨다는 것을 알 수 있다. Temperature measurement : After walking for 30 minutes after wearing shoes, the surface temperature of the front and back of the insole was measured 10 times with infrared temperature meter.In case of the left side where the expanded graphite sheet is not bonded, the average temperature of the front part is 31.9 ℃ The average temperature at the rear was 27.3 ℃ to 26.3 ℃, and the average temperature at the front was 30.7 ℃ to 27.7 ℃ and the average temperature at the back was 30.4 ℃ to 27.8 ℃ in the case of the right side of the expanded graphite sheet. Was measured. That is, in the embodiment of the present invention, when the expanded graphite sheet, which is a thermal conductive sheet, is attached to the insole, the temperature difference between the front and back of the insole is 0.3 ° C. to 0.1 ° C. In the case of the insole attached, it was confirmed that the temperature difference between front and rear was small by heat conduction. This causes the heat generated by the frictional force between the insole and the foot to be transferred by the thermally conductive sheet from the high to the low to the low to high parts, ie the front and rear of the shoe insole by the isothermal effect. It can be seen that the temperature difference is small to promote the blood circulation of the foot.
본 발명은 신사화, 숙녀화, 부츠, 전투화, 등산화, 운동화 등과 같은 신발 깔창에 적용하여 발의 앞부분과 뒤꿈치의 온도차를 가능한 한 균일하게 유지하여 발의 혈액순환을 좋게 할 수 있는 신발 깔창을 제공한다. 본 발명의 신발 깔창은 신발의 본체에 일체로 부착하여 신발을 완성할 수도 있고, 완성된 신발의 내부에 삽입하여 사용할 수도 있다.The present invention is applied to shoe insoles, such as men's shoes, ladies shoes, boots, combat shoes, hiking shoes, sneakers, etc. to provide a shoe insole that can improve the blood circulation of the foot by keeping the temperature difference between the front and heel of the foot as uniform as possible. The shoe insole of the present invention may be integrally attached to the main body of the shoe to complete the shoe, or may be used by being inserted into the finished shoe.
본 발명의 단순한 변형 내지 변경은 이 분야의 통상의 지식을 가진 자에 의하여 용이하게 실시될 수 있으며, 이러한 변형이나 변경은 모두 본 발명의 영역에 포함되는 것으로 해석되어야 한다.Simple modifications and variations of the present invention can be readily made by those skilled in the art, and all such modifications or changes should be construed as being included in the scope of the present invention.

Claims (6)

  1. EVA(Ethylene Vinyl Acetate Copolymer) 스폰지와 PE(polyethylene) 섬유 및 복원 스폰지를 접착하여 제조되고, 신발 바닥에 사용되는 신발 깔창에 있어서, 상기 신발 깔창은 EVA 스폰지(10)와 PE 섬유 및 복원 스폰지(30) 사이에 열전도 시트(20)를 삽입하여 접착한 것을 특징으로 하는 신발 깔창.Ethylene Vinyl Acetate Copolymer (EVA) sponges and PE (polyethylene) fibers and restoring sponges are manufactured by bonding the shoe insoles used in shoe soles, wherein the shoe insoles are EVA sponges (10) and PE fibers and restoring sponges (30). Shoe insole, characterized in that the thermal conductivity sheet 20 is inserted between the adhesive.
  2. 제1항에 있어서, 상기 열전도 시트(20)는 팽창흑연 시트(또는 ‘그라파이트’)(21) 양면에 불소필름(22)을 접착한 것을 특징으로 하는 신발 깔창.The shoe insole of claim 1, wherein the thermally conductive sheet (20) adheres a fluorine film (22) to both sides of the expanded graphite sheet (or 'graphite').
  3. 제2항에 있어서, 상기 열전도 시트(20)는 모서리를 따라 솔기부(221)가 봉제선(222)으로 박음질되고, 상기 솔기부(21)는 “ㄷ”자 형태로 마감한 후, 중간부분에서 PTFE(Polytetrafluoro Ethylene)의 실로 봉제하여 봉제선(222)을 형성하는 것을 특징으로 하는 신발 깔창.According to claim 2, The heat conductive sheet 20 is seam 221 is sewn into the seam 222 along the edge, the seam 21 is finished in the form of "c", after the middle portion Shoe insole characterized in that the seam (222) is formed by sewing with a thread of PTFE (Polytetrafluoro Ethylene).
  4. 제1항에 있어서, 상기 열전도 시트(20)는 불소필름(22)이 접착된 팽창흑연 시트 두 장 사이에 탄소섬유 시트(23)를 삽입하여 다층 구조로 이루어진 것을 특징으로 하는 신발 깔창.The shoe insole of claim 1, wherein the thermally conductive sheet (20) has a multilayer structure by inserting a carbon fiber sheet (23) between two sheets of expanded graphite sheet to which a fluorine film (22) is bonded.
  5. 제4항에 있어서, 상기 열전도 시트(20)는 모서리를 따라 솔기부(221)가 봉제선(222)으로 박음질되고, 상기 솔기부(21)는 “ㄷ”자 형태로 마감한 후, 중간부분에서 PTFE(Polytetrafluoro Ethylene)의 실로 봉제하여 봉제선(222)을 형성하는 것을 특징으로 하는 신발 깔창.According to claim 4, The heat conductive sheet 20 is seam 221 is sewn into the seam 222 along the edge, the seam 21 is finished in the form of "c", after the middle portion Shoe insole characterized in that the seam (222) is formed by sewing with a thread of PTFE (Polytetrafluoro Ethylene).
  6. 제1항에 있어서, 상기 열전도 시트(20)는 0.2∼0.5 mm의 두께를 갖는 것을 특징으로 하는 신발 깔창.The shoe insole of claim 1, wherein the thermally conductive sheet (20) has a thickness of 0.2-0.5 mm.
PCT/KR2017/006163 2016-12-01 2017-06-14 Shoe insole using expanded graphite sheet WO2018101555A1 (en)

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KR20130003522U (en) * 2013-04-26 2013-06-13 정진화 shoe insole with graphite for supporting health
KR101347130B1 (en) * 2012-07-24 2014-01-07 (주) 에코그린피아 Functional shoe
KR101638304B1 (en) * 2016-04-06 2016-07-08 이상민 Shoes having high elasticity midsole

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JP2002012485A (en) * 2000-06-23 2002-01-15 Matsushita Electric Ind Co Ltd Surface coating method of graphite sheet
KR200387918Y1 (en) * 2005-03-21 2005-06-29 성옥 조 a footwear slipsole
KR101347130B1 (en) * 2012-07-24 2014-01-07 (주) 에코그린피아 Functional shoe
KR20130003522U (en) * 2013-04-26 2013-06-13 정진화 shoe insole with graphite for supporting health
KR101638304B1 (en) * 2016-04-06 2016-07-08 이상민 Shoes having high elasticity midsole

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