Shoe lower structure for body heat dissipation and shoe including same

Abstract

A shoe lower structure for body heat dissipation and a shoe including same according to the present invention can provide wearing comfort by effectively dissipating body heat generated by the body temperature and sole friction of a wearer. In addition, the shoe lower structure for body heat dissipation and the shoe including same according to the present invention can effectively dissipate body heat without having a separate circulation device or external ventilation holes and the like, and thus has the advantages of reducing process costs and having excellent process efficiency.

Description

Shoe lower structure for dissipating body heat and shoes including the same

[0001] The present invention relates to a shoe lower structure for dissipating body heat and a shoe including the same, and more particularly, to a shoe lower structure for dissipating body heat generated by the wearer's body temperature and friction of the sole of the foot, thereby providing a comfortable wearing experience, and a shoe including the same.

[0002] Normally, when you wear shoes, your feet sweat due to body heat, so if the inside of the shoes is not properly ventilated, not only does it produce bad odor, but it also provides a breeding ground for pathogens, which can cause athlete's foot.

[0003] Accordingly, many shoe structures with ventilation structures have been proposed to prevent sweating, which is the cause of bad odor and athlete's foot.

[0004] For example, shoes with a structure that induces ventilation with the outside by having air intake holes in the sole and shoes with a structure that induces forced ventilation of air by a separate circulation mechanism have been proposed, but these have limitations such as the easy mixing of foreign substances in the shoes during rain or while walking, and the increased manufacturing cost.

[0005] Accordingly, there is a need to develop a shoe structure that effectively dissipates body heat.

[0006] The problem to be solved by the present invention is to provide a shoe lower structure for dissipating body heat generated by the wearer's body temperature and friction of the soles of the feet, thereby providing a comfortable wearing experience, and a shoe including the same.

[0007] In order to solve the above-described problem, the present invention provides a shoe lower structure for heat dissipation, comprising: a heat transfer part including an insole that comes into contact with the sole of a wearer's foot; a heat receiving part provided on the lower part of the insole to receive and release the body heat of the wearer or body heat generated by friction of the sole of the foot; a support part provided on the lower part of the heat receiving part; and at least one elastic body that is arranged inside the heat receiving part so as to be adjacent to the lower surface of the heat transfer part and the upper surface of the support part, and supports the internal space of the heat receiving part by spacing out a predetermined distance between the insole and the support part; wherein the support part is at least one of a midsole and an outsole.

[0008] According to a preferred embodiment of the present invention, the body heat of the wearer or the body heat generated by friction of the sole of the foot is not absorbed by the insole but is transferred to the body heat receiving portion, thereby increasing the temperature of the air inside the body heat receiving portion, and the body heat receiving portion causes the space volume to change by the elastic body, thereby causing the flow of the internal air with an improved temperature, and the body heat can be dissipated by the flow of the internal air.

[0009] According to a preferred embodiment of the present invention, the heat transfer portion further includes an upper layer disposed under the insole, and the upper layer may be formed to extend from the upper of the shoe.

[0010] According to a preferred embodiment of the present invention, the insole can be formed of a material having a low heat capacity.

[0011] According to a preferred embodiment of the present invention, the insole is formed of a breathable material including a plurality of vents, and the internal air with the improved temperature can be discharged to the outside through the vents.

[0012] According to a preferred embodiment of the present invention, the average height of the heat receiving portion may be less than 10 mm.

[0013] According to a preferred embodiment of the present invention, the elastic body has elasticity and a predetermined height, and the elastic body can change the spatial volume of the body heat receiving portion by contracting and relaxing according to the pressure applied when the wearer walks.

[0014] According to a preferred embodiment of the present invention, the elastic body may be at least one selected from the group consisting of a spring, a magnetorheological elastic body, and a rubber mount.

[0015] According to a preferred embodiment of the present invention, the average height of the elastic body may be 5 to 30 mm.

[0016] In addition, the present invention provides a shoe including a shoe lower structure for dissipating body heat as described above; and a shoe upper structure connected to the shoe lower structure and comprising an upper covering the instep of the wearer.

[0017] The shoe lower structure for body heat dissipation of the present invention and the shoe including the same can effectively dissipate body heat generated by the wearer's body temperature and friction of the sole of the foot, thereby providing a comfortable wearing experience.

[0018] In addition, the shoe lower structure for dissipating body heat of the present invention and the shoe including the same can effectively dissipate body heat without having a separate circulation mechanism, external ventilation hole, etc., thereby reducing process costs and having the advantage of excellent process efficiency.

[0019] FIG. 1 is a side cross-sectional view of a shoe lower structure according to a preferred embodiment of the present invention.

[0020] FIG. 2 is a side cross-sectional view of a shoe lower structure further including a separate outsole according to a preferred embodiment of the present invention.

[0021] FIG. 3 is a top view of a portion of a shoe lower structure according to a preferred embodiment of the present invention.

[0022] Fig. 4 is a schematic diagram showing a heat dissipation process of a shoe lower structure according to a preferred embodiment of the present invention.

[0023] FIG. 5 is a schematic diagram showing the heat dissipation process of a shoe lower structure when a conical coil spring according to a preferred embodiment of the present invention is used as an elastic body.

[0024] Fig. 6 is a schematic diagram showing the heat dissipation process of the lower structure of a shoe when a cylindrical coil spring according to a preferred embodiment of the present invention is used as an elastic body.

[0025] FIG. 7 is a side cross-sectional view of a shoe including a shoe lower structure according to a preferred embodiment of the present invention.

[0026] Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that a person having ordinary knowledge in the technical field to which the present invention pertains can easily practice the present invention.

[0027] As described above, existing shoes with a structure that induces ventilation with the outside by opening air intake holes in the sole and shoes with a structure that induces forced ventilation of air by a separate circulation mechanism have limitations such as the easy entry of foreign substances in the shoes during rain or while walking, or the increased manufacturing cost, and there is a need for the development of a shoe structure that effectively dissipates body heat.

[0028] Accordingly, the present invention seeks to solve the above-described limitations by providing a shoe lower structure for dissipating body heat, comprising: a heat transfer part including an insole that comes into contact with the sole of the wearer's foot; a heat receiving part provided on the lower part of the insole to receive and release the wearer's body heat; a support part provided on the lower part of the body heat transfer part and formed in a shape surrounding the body heat receiving part; and at least one elastic body that is arranged within the body heat receiving part so as to be adjacent to the lower surface of the body heat transfer part and the upper surface of the support part, and supports the internal space of the body heat receiving part by spacing out a predetermined distance between the insole and the support part; wherein the support part is at least one of a midsole and an outsole.

[0029] Accordingly, the present invention can effectively dissipate body heat generated by the wearer's body temperature and friction from the soles of the feet, providing a comfortable wearing experience. Furthermore, the ability to effectively dissipate body heat without the need for a separate circulation device, external ventilation, etc. reduces process costs and offers the advantage of excellent process efficiency.

[0030] FIG. 1 is a side view of a shoe lower structure (10) according to a preferred embodiment of the present invention. Referring to FIG. 1, the shoe lower structure (10) includes a body heat transfer portion (100) including an insole (110) with which the sole of the wearer's foot comes into contact. In addition, the shoe lower structure (10) includes a body heat receiving portion (300) provided at a lower portion of the insole (110) to receive and release the body heat of the wearer, a support portion (200) provided at a lower portion of the body heat receiving portion (300), and at least one elastic body (400) disposed inside the body heat receiving portion (300). In addition, the elastic body (400) is disposed adjacent to the lower surface of the body heat transfer portion (100) and the upper surface of the support portion (200), and forms an internal space of the body heat receiving portion (300) by spacing the insole (110) and the support portion (200) apart by a predetermined distance.

[0031] First, the insole (110) included in the heat transfer unit (100) will be described.

[0032] An insole (110) is provided inside a shoe and comes into contact with the sole of the wearer's foot. Specifically, the insole (110) is located at the top of the shoe lower structure (10) and provides a contact surface that comes into contact with the foot when the wearer puts on the shoe.

[0033] The insole (110) may be formed of a material with a low heat capacity. Preferably, the insole (110) may be formed of EVA or urethane foam.

[0034] In this case, since the insole (110) is light and has low specific heat, the wearer's body heat is not received or is only received to a small extent, so most of the heat energy is transferred to the body heat receiving portion (300) provided at the lower portion of the insole (110). The temperature of the air inside the body heat receiving portion (300) is increased by the heat energy, and the air inside the body heat receiving portion (300) is discharged to the outside by flow, thereby dissipating body heat, thereby providing a comfortable wearing experience. In addition, since the insole (110) has low specific heat, it is not heated by body heat or friction, so that discomfort such as heat or sweating in the wearer's feet can be reduced even when walking for a long time.

[0035] At this time, the above 'body heat' may mean all heat that may be generated in the internal space of the shoe when wearing the shoe, such as body heat generated by the wearer's own body temperature and body heat generated by friction between the sole and the insole (110).

[0036] Additionally, the insole (110) may be formed of a breathable material including a plurality of vents.

[0037] Specifically, referring to FIG. 1, the insole (110) may be formed of a breathable material. The insole (110) may include a plurality of vents (130), through which the internal air of the heat receiving portion (300) with an increased temperature may be discharged to the outside, thereby improving the efficiency of heat dissipation.

[0038] At this time, the average diameter of the ventilation holes (130) may be 3 mm or less. In addition, the ventilation holes (130) may be 4 / cm per unit area of ​​the insole (110). 2 It is desirable to include the following:

[0039] In this case, there is an advantage in that the internal air of the heat receiving unit (300) with improved temperature can be effectively discharged to the outside.

[0040] According to a preferred embodiment of the present invention, the heat transfer unit (100) may further include an upper layer disposed under the insole (110). The upper layer may be formed by extending from the upper of the shoe.

[0041] In this regard, referring to FIG. 1, an upper layer (120) may be placed on the lower portion of the insole (110). At this time, the upper layer (120) may be formed to extend from the upper of the shoe, and preferably extend from the upper, but when the upper is formed in multiple layers, the upper layer (120) may be formed as a single layer.

[0042] In addition, the upper layer (120) may include at least one ventilation portion formed along the edge portion. Referring to FIG. 1, a plurality of ventilation portions are formed in the upper layer (120), so that internal air with an improved temperature of the heat receiving portion (300) is discharged to the outside (A) as described below, thereby effectively dissipating body heat.

[0043] Next, the support member (200) will be described.

[0044] The support member (200) is provided at the lower part of the heat transfer member (100), and is formed in a shape that surrounds the heat receiving member (300).

[0045] Referring to FIG. 1, the support member (200) is provided at the lower portion of the body heat transfer member (100) and is formed in a form that surrounds the body heat receiving member (300), thereby supporting the lower surface of the shoe lower structure (10).

[0046] The support portion (200) is positioned at the bottom of the shoe lower structure (10) and forms the sole of the shoe. Specifically, the lower surface of the support portion (200) is configured to contact the ground, and may have a rough shape formed to improve ground contact.

[0047] The support member (200) is at least one of a midsole and an outsole. Specifically, it may be an outsole or may include both a midsole and an outsole.

[0048] FIG. 2 is a cross-sectional side view of a shoe lower structure further including a separate outsole according to a preferred embodiment of the present invention. Referring to FIG. 2, the shoe lower structure (10) of the present invention may further include a separate outsole (210) at the lower portion of the support portion (200).

[0049] Next, the body heat receiving unit (300) will be described.

[0050] The body heat receiving portion (300) is provided at the lower portion of the insole (110) to receive and release the body heat generated by the wearer's body temperature or the friction of the soles of the feet. That is, the body heat receiving portion (300) is provided to provide a space for receiving thermal energy generated by the wearer's body temperature or the friction of the soles of the feet. The internal air of the body heat receiving portion (300) is warmed by the received thermal energy, and as described below, air circulation is induced by the flow of the warmed internal air, thereby enabling effective body heat dissipation.

[0051] According to a preferred embodiment of the present invention, the average height of the body heat receiving portion (300) may be selected to an appropriate height depending on the material, and is preferably 10 mm or less. In this case, air circulation can be effectively induced by providing sufficient space to receive thermal energy from body heat.

[0052] If the average height of the body heat receiving portion (300) exceeds the above range, a rolling phenomenon may occur, which may reduce the wearing comfort and cause discomfort such as the wearer's ankles bending when walking.

[0053] Meanwhile, at least one elastic body (400) is placed inside the body heat receiving unit (300).

[0054] Next, the elastic body (400) will be described.

[0055] At least one elastic body (400) is arranged inside the body heat receiving portion (300) to form an internal space of the body heat receiving portion (300).

[0056] Fig. 3 is a top view of a portion of a shoe lower structure (10) according to a preferred embodiment of the present invention. Referring to Fig. 3, a top view of a body heat receiving portion (300) formed such that the side and lower surfaces are surrounded by a support portion (200) can be seen. At this time, it can be seen that a plurality of elastic bodies (400) are arranged within the body heat receiving portion (300) so as to be spaced apart by a predetermined interval.

[0057] In some cases, the elastic body (400) may be inserted into or fitted into at least one groove formed in the support member (200) and fixed therein so as to be placed inside the body heat receiving member (300).

[0058] That is, the elastic body (400) has a predetermined height, and the upper surface of the elastic body (400) and the lower surface of the insole (110) are adjacent, and the lower surface of the elastic body (400) and the upper surface of the support (200) are arranged adjacent, thereby separating the gap between the insole (110) and the support (200) by a predetermined distance.

[0059] The elastic body (400) may have elasticity and a predetermined height. The elastic body (400) may contract and relax due to pressure applied due to vibration or impact generated when the wearer walks, and the internal space volume of the body heat receiving portion (300) may change according to the contraction and relaxation of the elastic body (400), thereby allowing the internal air of the body heat receiving portion (300) to flow.

[0060] That is, as the internal air of the body heat receiving part (300) with an improved temperature flows, air circulation or ventilation is induced, so that body heat can be effectively dissipated, and thus a comfortable wearing feeling can be provided to the wearer.

[0061] Specifically, FIG. 4 is a schematic diagram showing a heat dissipation process of a shoe lower structure (10) according to a preferred embodiment of the present invention. Referring to step S10, since the insole (110) of the present invention has a small heat capacity, most of the body heat generated by the wearer's body temperature or friction of the sole is not received by the insole (110), but the heat energy is transferred (H) to the heat receiving portion (300). In this way, the temperature of the air inside the heat receiving portion (300) can be increased by the heat energy. Referring to step S20, the elastic body (400) contracts due to pressure (P) applied due to vibration or impact generated when the wearer walks. Thereafter, referring to step S30, as the wearer walks, the applied pressure is removed (N), and thus the elastic body (400) relaxes. As in steps S20 and S30, as the elastic body (400) of the present invention contracts and relaxes repeatedly, the spatial volume of the heat receiving portion (300) changes, causing internal air to flow. As a result, the internal air, whose temperature has been improved in the heat receiving portion (300), is released (A) to the outside through the ventilation portion of the upper layer (120), effectively dissipating body heat to provide a comfortable wearing experience.

[0062] According to a preferred embodiment of the present invention, the elastic body (400) may be at least one selected from the group consisting of a spring, a magnetorheological elastic body, and a rubber mount.

[0063] The rubber mount can induce the flow of air inside the body heat receiving unit (300) by repeatedly contracting and relaxing when the wearer walks due to the elasticity of the rubber itself.

[0064] The spring may be a coil spring itself, or a coil spring wound around the outer surface of a three-dimensional support. In this case, it has the advantage of excellent elasticity, which can more effectively induce the flow of air inside the heat receiving portion (300). In addition, when a coil spring wound around the outer surface of a three-dimensional support is used, the space of the heat receiving portion (300) can be stably formed by firmly supporting and separating the insole (110) and the support portion (200).

[0065] The magnetorheological elastomer can be one that has elasticity due to repulsion, and specifically, one that has particles that can form polarity due to a magnetic force similar to a magnetorheological fluid added to a polymer material such as natural rubber or silicone rubber can be used. In this case, when external pressure is applied, the elastomer (400) contracts momentarily, but by relaxing the elastomer (400) again due to the magnetic repulsion, the flow of air inside the heat receiving portion (300) can be induced.

[0066] More preferably, the elastic body (400) may be a coil spring. Even more preferably, it may be a conical coil spring or a cylindrical coil spring. In this case, the contraction and relaxation of the elastic body (400) can be more flexibly controlled, thereby smoothly inducing the flow of air inside the heat receiving portion (300).

[0067] Specifically, FIG. 5 is a schematic diagram showing the heat dissipation process of the shoe lower structure (10) when the conical coil spring according to a preferred embodiment of the present invention is used as the elastic body (400). FIG. 5 is a schematic diagram showing the heat dissipation process based on a side cross-sectional view cut along the AB direction of the shoe lower structure (10) of FIG. 4. Referring to FIG. 5, the conical coil spring elastic body (400) may be inserted into or fitted into at least one groove formed in the support portion (200) and fixed thereto so as to be placed inside the heat receiving portion (300) (S10'). It can be seen that the conical coil spring elastic body (400) contracts and is deformed into a flat shape by a force (F) applied due to vibration or impact generated when the wearer walks, and is inserted into the groove (S20'). In this way, when a conical coil spring is used as an elastic body (400), it is easy to control the flow of internal air by adjusting the internal space volume of the body heat receiving portion (300) according to relaxation and contraction. At the same time, due to the characteristics of the conical coil spring, the volume is significantly reduced upon contraction, forming a flat shape, thereby preventing discomfort from occurring when the wearer walks.

[0068] In addition, Fig. 6 is a schematic diagram showing the heat dissipation process of the shoe lower structure (10) when a cylindrical coil spring according to a preferred embodiment of the present invention is used as an elastic body (400). Fig. 6 is a schematic diagram showing the heat dissipation process based on a side cross-sectional view cut along the AB direction of the shoe lower structure (10) of Fig. 4. Referring to Fig. 6, the cylindrical coil spring elastic body (400) may be inserted into or fitted into at least one groove formed in the support part (200) and fixed therein to be placed inside the heat receiving part (300) (S10'). The cylindrical coil spring elastic body (400) contracts due to a force (F) applied due to vibration or impact generated when the wearer walks, thereby significantly reducing its volume, and may be inserted into the groove and prevented from protruding outside the groove (S20'). In this way, when a cylindrical coil spring is used as an elastic body (400), it is easy to control the flow of internal air by adjusting the internal space volume of the body heat receiving portion (300) according to relaxation and contraction. At the same time, due to the characteristics of the conical coil spring, the volume is significantly reduced when contracted, which can prevent the wearer from feeling uncomfortable when walking.

[0069] Meanwhile, the average height of the elastic body (400) is preferably 5 to 30 mm, and more preferably 10 to 20 mm. In addition, the average diameter of the upper surface and the lower surface of the elastic body (400) may be 10 to 15 mm.

[0070] In this case, the space of the body heat receiving portion (300) can be sufficiently secured while the shoe can be sufficiently supported, so that body heat can be effectively received and released, while at the same time improving the wearer's wearing comfort.

[0071] Furthermore, the present invention provides a shoe including a shoe lower structure (10) for dissipating body heat as described above and a shoe upper structure formed of an upper that is connected to the shoe lower structure (10) and covers the instep of the wearer.

[0072] Below, details are explained in detail, excluding any overlapping content with the above.

[0073] Fig. 7 is a side view of a shoe (1) including a shoe lower structure (10) according to a preferred embodiment of the present invention. Referring to Fig. 7, the shoe (1) is composed of the shoe lower structure (10) described above and a shoe upper structure (20) formed of an upper that is connected thereto and covers the wearer's instep, toes, etc.

[0074] The upper can be formed of various materials and shapes depending on the type and shape of the shoe.

[0075] Referring to Fig. 7, the upper layer (120) may be formed by extending from the upper layer (120A). In addition, as described above, the internal air of the heat receiving portion (300), whose temperature has been increased due to the plurality of ventilation portions formed in the upper layer (120), may be released to the outside, thereby improving the efficiency of heat dissipation.

[0076] Ultimately, the present invention effectively dissipates body heat without requiring a separate circulation mechanism, external ventilation, or the like, providing the wearer with a comfortable fit. This prevents the wearer's feet from sweating due to body heat, thereby preventing athlete's foot and other odor-causing conditions. Therefore, it can be effectively applied to a variety of footwear.

Claims

1. In the shoe lower structure included in the shoe, A body heat transfer unit including an insole that comes into contact with the sole of the wearer's foot; A body heat receiving portion provided at the lower part of the above insole to receive and release the wearer's body heat; A support part provided at the lower part of the heat transfer part and formed in a shape that surrounds the heat receiving part; and At least one elastic body is disposed within the heat receiving portion so as to be adjacent to the lower surface of the heat transfer portion and the upper surface of the support portion, and supports the internal space of the heat receiving portion by spacing the insole and the support portion apart by a predetermined distance; The above support member is a shoe lower structure for dissipating body heat, which is at least one of a midsole and an outsole.

2. In paragraph 1, The body heat of the wearer or the body heat generated by the friction of the soles of the feet is not absorbed by the insole but is transferred to the body heat receiving portion, thereby increasing the temperature of the air inside the body heat receiving portion. The above body heat receiving part is a shoe lower structure for body heat dissipation, in which the space volume is changed by the elastic body, causing the flow of internal air with an improved temperature, and body heat is dissipated by the flow of the internal air.

3. In paragraph 1, The above heat transfer part further includes an upper layer disposed under the insole, The upper layer is a shoe lower structure for heat dissipation that is formed by extending from the upper of the shoe.

4. In paragraph 1, The above insole is a shoe lower structure for dissipating body heat, formed of a material with a low heat capacity.

5. In paragraph 2, The above insole is formed of a breathable material including a plurality of vents, A shoe lower structure for dissipating body heat, wherein the internal air, whose temperature has been increased, is discharged to the outside through the vent.

6. In paragraph 1, A shoe lower structure for heat dissipation, wherein the average height of the above heat receiving portion is less than 10 mm.

7. In paragraph 2, A shoe lower structure for dissipating body heat, wherein the elastic body has elasticity and a predetermined height, and the elastic body contracts and relaxes according to the pressure applied when the wearer walks, thereby changing the spatial volume of the body heat receiving section.

8. In paragraph 7, A shoe lower structure for heat dissipation, wherein the elastic body is at least one selected from the group consisting of a spring, a magnetorheological elastic body, and a rubber mount.

9. In paragraph 1, A shoe lower structure for heat dissipation, wherein the average height of the elastic body is 5 to 30 mm.

10. A shoe lower structure for heat dissipation according to any one of the first to ninth clauses; and A shoe comprising a shoe upper structure formed of an upper that is connected to the shoe lower structure and covers the instep of the wearer.

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