KR102492482B1 - cooling shoes - Google Patents

Abstract

The present invention relates to cooling shoes. In shoes including an upper and a sol, the cooling shoes include an upper comprising: an inner skin formed by laminating a first fabric in which fibers having PCM microcapsules and general fibers are woven together, and a second fabric which is woven with urethane-coated yarn; and an outer skin formed of leather or various fabrics and disposed on the outer side. Accordingly, the cooling shoes can relieve discomfort from heat or sweat, prevent the growth of mold or bacteria, and prevent the leakage of PCM due to repetitive weight pressure.

Description

cooling shoes

The present invention relates to cooling shoes, and more particularly, to cooling shoes capable of relieving discomfort from heat or sweat, preventing the growth of mold or bacteria, and preventing PCM leakage due to repetitive weight pressure.

In general, shoes are composed of a sole and an upper, and further include an insole (insole) depending on the type of shoe.

In these shoes, the insole, which is in direct contact with the sole of the foot, improves the fit and makes the foot more comfortable. there was a problem with

In particular, in order to solve a problem that is quite painful for people who work in cold places or are particularly sensitive to cold, Patent Document 1 includes a lower member, a planar heating element member, a rechargeable battery member, and an upper member, and the planar heating element member is the main body. and a first connection line, and the main body is seated in the planar heating element seating groove of the lower member.

The main body is a commonly used planar heating element, which uses heat generated by resistance when a voltage is applied to a conductive material, and is generally manufactured by forming a heating layer containing a conductive material in plan on a substrate of fabric or synthetic resin. .

Therefore, when the switch is turned on, the power of the battery body is supplied to the body of the planar heating element member to heat the body, and when the switch is turned off when not in use, the power of the battery body is cut off to selectively A feature that can generate heat was proposed.

However, Patent Document 1 has a problem that it cannot be used in an environment where electricity cannot be supplied because charging is possible only when an adapter is connected to a connection port connected to a rechargeable battery member.

On the other hand, in the summer season, cool slipper-type shoes are used to avoid discomfort caused by heat and sweat, but even in this case, it is not enough to reduce the heat in the summer season.

In particular, when a lot of sweat occurs, sweat is temporarily accumulated in shoes and socks, and when worn for a long time, a considerable amount of sweat accumulates in shoes, causing severe odor, as well as becoming a breeding ground for various fungi and bacteria, which can cause eczema or athlete's foot Problems such as causing the same skin disease may occur.

Patent Document 2 to solve this problem provides a method such as configuring the upper of the shoe in a mesh form or forming a plurality of ventilation holes so that it can be worn when the external temperature is high, such as in the summer season, but by the user's feet There is a problem in that the actual cooling function cannot be performed because the ventilation hole itself is blocked and air cannot circulate inside the shoe.

Therefore, even when a ventilation hole is formed in the shoe or the upper is formed in the form of a mesh, it does not help to solve the fundamental problem of solving skin diseases and odor by cooling the inside of the shoe or circulating fresh air.

In particular, when the upper of the shoe is made of mesh or ventilation holes, it rains quite a lot due to the nature of the summer season. At this time, rainwater and other water flows into the shoe, so skin diseases such as eczema or athlete's foot are more likely to occur. A number of problems, such as worsening, are occurring.

In contrast, in Patent Document 3, in a known thing composed of a midsole, an outsole, an upper, and a heel, a void provided in a part of the midsole, a thermoelectric module installed in the void, and a heat absorbing plate attached to the upper surface of the thermoelectric module, and below the thermoelectric module Cooling shoes characterized in that they are composed of a heat sink installed on the surface, a battery built into the heel to supply power to the thermoelectric module, and a power switch connected between the thermoelectric module and the battery and turned on/off depending on whether the shoes are worn or not. is providing

However, there are problems such as periodic replacement of batteries, concerns of electric shock due to batteries or heat sinks and heat sinks, and problems in that electrical devices can be frequently damaged by external forces.

Therefore, it is necessary to provide a shoe insole or shoe that maintains the body's health by maintaining a cool temperature on the feet, efficiently cools the heat in the summer season, and at the same time has excellent durability and can remove foot odor and athlete's foot. However, there is no alternative to this yet.

In addition, fibers, fabrics, and clothes having a temperature control function using conventional PCM microcapsules are designed to enhance cooling sensation and heat retention by forming a coating layer of PCM microcapsules on one side of the fibers, fabrics, and clothes. PCM microcapsules are coated and dried on the outer surface of the microcapsules, and the washing durability of the microcapsules is poor, and it is a coated fabric for coolness in summer, so it is not breathable and soft, so it cannot be used for summer clothing.

Until now, to increase the difference between cooling sensation and warmth caused by the latent heat of PCM microcapsules, a coating layer of PCM microcapsules has been formed on the inner surface. In particular, in the case of using it for a sense of warmth, in the conventional method, the coating layer of the PCM microcapsules directly touches the skin, so that a cold feeling is felt first until the PCM material is melted by skin temperature, rather than giving a sense of warmth. There was a problem that the wearability was bad due to the preferential cooling sensation.

KR 20-413644 B1 KR 10-2014-0046114 A KR 20-197405 Y1

In order to solve the above problems, the present invention proposes an upper made of fibers containing micro-coated PCM capsules to cool the wearer's feet to relieve discomfort from heat or sweat, to prevent the growth of mold or bacteria, An object of the present invention is to provide a cooling shoe capable of preventing PCM leakage due to repeated weight pressure.

In order to achieve the above object, the present invention is a shoe including an upper and a sole, and the upper is a first fabric woven together with a PCM microcapsule and a general fiber, and a second fabric woven with urethane-coated yarn. Endothelial Wow; Provided is a cooling shoe characterized in that it comprises a skin disposed on the outside made of leather or various fabrics.

Here, the first fabric applied to the inner skin is disposed on the inner surface of the inner skin, and the outer skin is characterized in that it is made of any one or a combination of a woven or knitted fabric, a knitted fabric, and a non-woven fabric.

By providing the present invention configured as described above, there is an effect of relieving the discomfort of heat or sweat, preventing the growth of mold or bacteria, and preventing PCM leakage due to repetitive weight pressure.

1 is a perspective and enlarged configuration diagram showing a cooling shoe according to the present invention.
Figure 2 is a side and enlarged configuration diagram showing a cooling shoe according to the present invention.
Figure 3 is a picture for drawing showing the bottom of the cooling shoe according to the present invention.
Figure 4 is a drawing substitute photo showing an insole applied to a cooling shoe according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention.

As shown in FIGS. 1 to 4 , the cooling shoe of the present invention may provide a shoe 100 including an upper 110 and an outsole 120 .

Here, the upper 110 includes an inner skin 111 in which a first fabric 113 woven with PCM microcapsule-containing fibers and general fibers and a second fabric 115 woven with urethane-coated yarn are combined; It may include an outer shell 117 made of leather or various fabrics disposed on the outside.

Here, the first fabric 113 applied to the inner skin 111 is disposed on the inner surface of the inner skin 111, and the outer skin 117 is made of any one or a combination of a woven or knitted fabric, a knitted fabric, and a non-woven fabric, characterized in that do.

PCM can also be expressed as a latent heat or heat storage material. It refers to a material that absorbs or releases latent heat while changing from a solid to a liquid or from a liquid to a solid in a certain temperature range. It is possible to use any material having hydrocarbons, paraffin wax, aromatic compounds, polyhydric alcohols, various esters, and materials whose melting temperature is about -20 ~ 90 ℃ can be selected and used.

In order to put PCM into fabric (fiber), it is used in the form of PCM capsules by introducing it in various ways in the spinning step, such as wet spinning and melt spinning.

PCM microcapsules in which PCM is wrapped with a polymer material can be spun as a single component such as rayon or acrylic, or spun as a composite component by wet spinning or melt spinning.

The fabric produced by spinning in this way can be made of various types of spun yarn through a spinning process of various methods such as single yarn, double-twisted yarn, and plied yarn. It can also be made into a blended yarn by mixing other fibers in the spinning process.

Fibers are roughly classified into natural fibers such as cotton, wool, silk, and hemp, and chemical fibers such as acrylic, rayon, polyvinyl alcohol, nylon, polyester, and polypropylene. Chemical fibers are divided into regenerated fibers such as rayon, triacetate, modal, and polynosic, and synthetic fibers such as acrylic, nylon, polyester, polypropylene, and polyurethane.

These chemical fibers are manufactured by wet spun and melt spun.

Wet spinning is used to manufacture acrylic, rayon, modal, viscose, polyvinyl alcohol, bamboo fiber, etc., while nylon, polyester, polypropylene, polyurethane, etc. are manufactured by melt spinning. In addition, chemical fibers can be spun as monocomponents such as rayon, acrylic, polyvinyl alcohol, nylon, and polyester, and can be spun by various methods such as sheath-core, sea-island, and split yarn methods. It can be produced by spinning with multi-component (conjugated) fibers.

Once the chemical fiber is formed by extruding the stock solution of the chemical fiber through the spinneret, it may be wound into a filament state through a drawing process or cut into staple fibers of a certain length and collected.

These fibers are used to make knitted, woven or nonwoven fabrics.

In the present invention, a staple fiber or filament-type fiber made of a single component or multiple components by the above wet spinning or melt spinning method by applying microcapsule-shaped PCM is referred to as a PCM fabric.

Various commonly used staple fabrics are made into yarn through the process of spinning, and the spun yarn is woven or knitted into fabric or knitted fabric through the process of fabrication to manufacture various clothing products. In this way, the PCM fabric may be spun as 100% itself, or may be mixed with staple fabrics of the same component or other components that do not contain PCM as needed to make a blended yarn or bite yarn containing a certain proportion of PCM fabric. These 100% PCM spun yarns or blended yarns and bridging yarns containing a certain percentage of PCM fabric are generally spun yarns, mixed yarns, and occluding yarns themselves, or mixed with various other yarns that do not contain PCM, and are woven and knitted into fabric. this can be manufactured. In this way, the PCM fabric is prepared and used as a fabric mixed in a desired ratio with a general fabric that does not contain PCM for various purposes.

As described above, in the present invention, PCM in the form of microcapsules is applied, and fibers on staple fibers or filaments made of single components or composite components by the wet spinning or melt spinning method are PCM fabrics (fiber ) In a more broad sense, the PCM fabric (fiber) herein is a PCM fabric spun yarn or a PCM fabric containing PCM and a regular fabric not containing PCM and a spun yarn mixed in a desired ratio, If a PCM fabric is included in any part, such as a blended yarn or an articulated yarn, this is also considered to be a PCM fabric.

The PCM fabric manufactured by the above method is made of a fiber having a temperature control function that shows the effect of coolness and warmth, and can be made and used in various clothing products. can function as an effective cooling material. However, when PCM is applied to underwear in winter when it is used as a warmth material by using the exothermic latent heat when it is crystallized after melting and the PCM fabric directly contacts the skin, the process of melting by body temperature first occurs, so this melting process The body temperature is taken away from the body, and because of this, the skin has no choice but to feel the cold first.

In winter, when PCM is used as a warm material, PCM fabric should not be applied to the side in contact with the skin to avoid preferential cooling when PCM melts, and PCM fabric is applied to the back side or the side that does not directly contact the skin. The fiber structure must be configured so that this can be applied. As a PCM fabric, the fibrous tissue designed with this mechanism is able to use only the coagulation heat generated when the PCM is solidified again after being melted instead of being directly transmitted to the skin when the PCM is melted by the skin temperature. purpose can be achieved. In this case, since the PCM fabric on the back side should be melted by skin temperature, PCM with a lower melting temperature should be selected rather than cooling, and the PCM fabric should be manufactured.

In the case of textiles, there are methods in which PCM fabrics are woven in double weave or bonded or laminated with two types of fabrics, the inner and outer surfaces. It can be used as a fabric for

Meanwhile, a pocket 130 may be formed with a predetermined thickness between the first fabric 113 and the second fabric 115, and the cooling block 140 filled with the phase change material may be received and finished with quilting. there is.

That is, by forming the pocket 130 in preparation for a case where the cooling sensation of the first fabric 113 woven from fibers having PCM microcapsules is remarkably low, the user can carry the cooling block 140 as needed, making it convenient for long-term walking. It can cool down the heat.

In addition, a dome-shaped round panel 150 for protecting the user's instep is further provided inside the first fabric 113 to prevent impact on the instep due to other falling objects during walking.
At this time, according to FIG. 1, the round panel 150 is provided inside the shoe to protect the top of the user's foot, but the round panel 150 corresponds to the cooling block 140 accommodated in the pocket 130 formed by quilting. The cooling block 140 directly contacts the user's instep through the hole formed therein, so that the user can maximize the feeling of coolness in the instep.

According to FIG. 2, the outsole 120 includes a cushion layer 121 in contact with the sole of the user's foot; It is divided into a bottom layer 123 in contact with the floor, the cushion layer 121 is made of EVA, and the bottom layer 123 is synthesized at a ratio of 70% TPU and 30% rubber to prevent slipping.

Various animals may be printed and applied to the lower surface of the bottom layer 123 .

If the outer skin of the insole is made of PCM coating, the insole can be formed with a honeycomb-shaped ventilation hole to satisfy both shock absorption and rebound elasticity.

Here, the insole is injection-molded with SEBS material in a gel type.

And, the fabric of the upper 110 is made by synthesizing polyester + urethane with urethane-coated yarn.

By providing the present invention configured as described above, there is an effect of relieving the discomfort of heat or sweat, preventing the growth of mold or bacteria, and preventing PCM leakage due to repetitive weight pressure.

The terms and words used in the present specification and claims described above should not be construed as being limited to ordinary or dictionary meanings, and the present inventors appropriately use the concept of terms in order to describe their invention in the best way. It should be interpreted as a meaning and concept consistent with the technical spirit of the present invention based on the principle that it can be defined in the following way.

Therefore, the configurations shown in the drawings and embodiments described in this specification are only one of the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, so they can be replaced at the time of the present application. It should be understood that there may be many equivalents and variations.

100: shoe 110: upper
111: inner skin 113: first fabric
115: second fabric 117: outer skin
120: outsole 130: pocket
140: cooling block 150: round panel

Claims (7)

In the shoe 100 including the upper 110 and the sole 120,
The upper 110,
an endothelium 111 in which a first fabric 113 woven with PCM microcapsules and general fibers and a second fabric 115 woven with urethane-coated yarns are laminated;
It includes an outer shell 117 made of leather or various fabrics and disposed on the outside,
A pocket 130 is formed with a predetermined thickness between the first fabric 113 and the second fabric 115, and after receiving the cooling block 140 filled with the phase change material, it is finished by quilting,
The inner side of the first fabric 113 is formed in a dome shape to protect the top of the user's feet, and the cooling block 140 is passed through a hole formed corresponding to the cooling block 140 accommodated in the pocket 130 formed by quilting. Cooling shoes characterized by comprising a round panel 150 that passes through and directly contacts the user's foot.
The method of claim 1,
Cooling shoes, characterized in that the first fabric (113) applied to the inner skin (111) is disposed on the inner surface of the inner skin (111).
The method of claim 1,
The outer skin 117 is a cooling shoe, characterized in that made of any one or a combination of woven or knitted fabric, knitted fabric, non-woven fabric.
delete delete The method of claim 1,
The outsole 120 includes a cushion layer 121 in contact with the sole of the user's foot; It is divided into a bottom layer 123 in contact with the floor,
The cooling shoe, characterized in that the cushion layer 121 is made of EVA, and the bottom layer 123 is anti-slip by synthesizing a ratio of 70% TPU and 30% rubber.
The method of claim 6,
Cooling shoes, characterized in that various animals are printed on the lower surface of the bottom layer (123).

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