JP2023534482A - A smart insole with a suspension function that automatically controls the height and weight of the foot arch and balances the foot, and a natural healing shoe that corrects the body shape and alleviates joint pain using the smart insole. - Google Patents

Abstract

The arch-adaptive smart insole according to the present invention has an insole cushion foam 10 made of elastic foam having a shape corresponding to the shape of the foot, and is arranged in a first placement hole 11 of the insole cushion foam 10. and includes an arch spring module 20 that supports the arch of the foot through the closing portion 18 of the insole cushion foam 10 that closes the upper portion of the first placement hole 11 , and the arch spring module 20 includes at least a first coil spring 21 and a second coil spring 22, and the first coil spring 21 having a smaller diameter than the second coil spring 22 is positioned inside the second coil spring 22. characterized by [Selection drawing] Fig. 1

Description

The present invention relates to a smart insole with a suspension function that automatically controls the height and weight of the foot arch and balances the foot, and a natural healing shoe that corrects body shape and alleviates joint pain using the smart insole.

Humans are the only animals whose feet are arched, and without arches, the resilience of the feet is significantly reduced and shock absorption during movement is difficult. The arch is a good structure that easily distributes the impact over the body.

Various foot malformations and foot malformations such as flat feet, bent feet, foot fatigue, arthritis, hallux valgus, heel pain, interdigital neuroma, plantar fasciitis, etc. disease. On the other hand, a concave foot is a case where the arch is more bent than normal, and it can occur congenitally or acquiredly, but if you wear high-heeled shoes such as high heels, it can occur due to muscle deformation. It occurs, and excessive pressure is applied only to the front part of the sole and the heel, causing calluses and corns, and complaints of pain.

By the way, ordinary shoes use flat insoles, and when walking, the load due to the body weight is concentrated on the heel of the foot, and the impact force is transmitted to the spine, etc., which places a burden on the waist, shoulders, neck, etc. can provoke pain. If you continue to use general flat insoles (insoles) due to individual differences in arches (foot arches) such as flat feet, bent legs, and concave feet, you will continue to put strain on your feet and joints. However, there have been various problems such as exacerbation of symptoms, deformation of the toes, and increased fatigue in the joints of the knees, ankles, toes, and the like.

As a prior art for supporting the arch, Japanese Unexamined Patent Publication No. 10-2011-0017781 "Self-Positioning System Mounted Insole for Arch Support" (Patent Document 1) has been disclosed, but this is based on the height of the individual's arch. There was the inconvenience of having to replace and install the arch support to fit.

In addition, in the registered patent No. 10-0912910 "Functional Shoes" (Patent Document 2), it is inconvenient to adjust the slider to match the height of the arch of the foot for each individual. There was a reason.

In addition, No. 10-0928712 "Shoes capable of arch correction" (Patent Document 3) discloses a technique of supporting the arch using a spring and an "arch correction plate" to alleviate pain. Since it is limited by the shape of the arch correction plate, there is a problem that it cannot automatically adapt to various arch forms.

In general, insoles are mainly made of elastic cushion foam, and it is very difficult to combine elastic means such as springs with such cushion foam. The reason is that both ends of the spring are supported only by the cushion foam, but both ends of the spring enter the cushion foam, and there is a problem that the pressure of the spring is concentrated in the narrow spring contact area and transmitted to the foot. Therefore, there is no choice but to use a hard arch correction plate as in Patent Document 3.

Korean Patent No. 10-2011-0017781 Korea Registered Patent No. 10-0912910 Korea Registered Patent No. 10-0928712

SUMMARY OF THE INVENTION An object of the present invention is to provide an arch-adaptive insole capable of arch support and automatically adaptable to various arch forms, and a shoe using the same.
Another object of the present invention is to provide an arch-adaptive insole and shoes using the same, in which a spring can be formed directly in the cushion foam of the insole.

An arch-adaptive smart insole according to one aspect of the present invention includes an insole cushion foam 10 made of an elastic foam having a shape corresponding to the shape of the foot, and placed in a first placement hole 11 of the insole cushion foam 10. and an arch spring module 20 that supports the arch of the foot through the closing portion 18 of the insole cushion foam 10 that closes the upper portion of the first placement hole 11, and the arch The spring module 20 includes at least a first coil spring 21 and a second coil spring 22 , and the first coil spring 21 having a smaller diameter than the second coil spring 22 is placed inside the second coil spring 22 . characterized by being located

In the above arch-adaptive smart insole, the upper end of the second coil spring 22 is configured to be lower than the upper end of the first coil spring 21 so as to correspond to the arch of the foot. do.

In the above-described arch-adaptive smart insole, the first coil spring 21 and the second coil spring 22 are formed by spirally winding a band-shaped plate material having elasticity and being wider than the thickness. The upper ends of the first coil spring 21 and the second coil spring 22 are characterized in that the flat surfaces of the flat plate support the closing portions 18 of the insole cushion foam 10 respectively.

In the arch-adaptive smart insole, the arch spring module 20 has a first surface on which the lower ends of the first coil spring 21 and the second coil spring 22 are arranged so that the first coil spring 21 and the second coil spring 22 are arranged. A disc-shaped movement supporter 24 for supporting a coil spring 22, and an upper end of the disc-shaped movement supporter 24 is disposed on a second surface opposite to the first surface of the disc-shaped movement supporter 24, and a load is applied through the disc-shaped movement supporter 24. , and the disk-shaped movement supporter 24 can move up and down through the first placement hole 11 .

The arch-adaptive smart insole further comprises a rear spring module 30 arranged in the second placement hole 11 of the insole cushion foam 10 and supporting the heel of the foot. The spring module 30 includes a fourth coil spring 31 and a fifth coil spring 32 concentrically arranged and having different diameters, and supports upper ends of the fourth coil spring 31 and the fifth coil spring 32 to support the second coil spring 31 . It includes a solid support part 33 positioned below the closing part 19 of the placement hole 11 and made of a hard material.

In the arch-adaptive smart insole, the lower ends of the arch spring module 20 and the rear spring module 30 are supported, and the lower portions of the first and second placement holes 12 are closed, and the insole cushion foam 10 is closed. may further include a cover 40 bonded to the .

In the arch-adaptive smart insole, at least one or more through holes 13 penetrating the upper and lower surfaces of the insole cushion foam 10 are provided, and the through holes 13 are trenches formed in the insole cushion foam 10. can be communicated with the first placement hole and the second placement hole 12 through a hole.

In the above-described arch-adaptive smart insole, at the heel portion of the insole cushion foam 10, the height of the medial portion of the foot may be lower than the height of the lateral portion of the foot.

The arch-applicable smart insole described above can be applied to self-healing shoes.

According to the present invention, the upper end of the spring can be configured to have a profile that corresponds to the profile of the foot arch, and the load is transferred directly to the multiple springs through the cushion foam without a rigid spring support; Since each spring descends independently, it has the advantage of being adaptable to various arch shapes.

In addition, according to the present invention, by configuring the disk-shaped movement support part between the first coil spring, the second coil spring, and the third coil spring, the problem of the spring falling sideways or bending to the side can be greatly reduced. , and the arch spring module can maintain a stable posture as a whole even during compression.

In addition, according to the present invention, by automatically adjusting the height of the arch, it can be applied regardless of the height of the foot arch, such as flat feet, concave feet, and normal feet. It does not need to be separately adjusted according to the height, and provides the items required by the arch shape.

In addition, according to the present invention, the arch support is automatically and appropriately adjusted according to the height of the arch, which varies from person to person, so that the arch balances the foot and supports the arch at the center of the sole to prevent distortion. The musculoskeletal system is straightened, the body shape is adjusted, and the weight and load of the body are distributed and supported, which is the orthotic function. It aids in the correct alignment of the arch, symmetrizes the upright joints of the body so that the human body can relieve structural pain, i.e. structural pain in the joints, and protects against impacts that occur during various activities such as exercise. It has a shock absorbing effect that can safely protect each part of the human body such as the spine, joints of the lower limbs, muscles, etc. By using this, it prevents and protects the human body from injury and alleviates joint pain. It is beneficial to health, protects and relieves pain in the knee joints and spine.

In addition, according to the present invention, the arch support insole effectively supports flat feet with low arches, concave feet with high arches, and normal feet, thereby supporting and dispersing body weight and absorbing shocks, thereby enabling working. It also safely protects various parts of the human body such as knee joints, spine, leg joints, plantar fasciitis, and muscle pain from impacts that occur during various activities such as exercise, and knee joint and waist surgery. It also helps protect your knees and hips afterward.

1 is an exploded perspective view of an arch-adaptive smart insole according to one embodiment of the present invention, viewed from above; FIG. 1 is an exploded perspective view showing an arch-adaptive smart insole according to one embodiment of the present invention, viewed from below; FIG. 1 is an exploded perspective view showing an arch spring module of an arch-adaptive smart insole according to one embodiment of the present invention; FIG. FIG. 4 is an exploded perspective view showing the rear spring module of the arch-adaptive smart insole according to one embodiment of the present invention; It is the figure which showed the shape which looked at the heel part from the back of the insole cushion foam. (a) shows the correspondence between the arch spring module 20 of the arch-adaptive smart insole according to one embodiment of the present invention and the profile F, F' of the foot arch, and (b) shows the general arch part of the insole. This is a comparative example showing the correspondence between the spring and foot arch profiles F and F' when the coil-type spring of No. 1 is applied. (a) shows the correspondence between the arch spring module 20 of the arch-adaptive smart insole according to an embodiment of the present invention and various types of foot arches, and (b) shows various types of foot arches. is a plan view.

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 implement the present invention. This invention may, however, be embodied in many different forms and is not limited to the embodiments set forth herein. In addition, in order to clearly describe the present invention in the drawings, parts that are not related to the description are omitted, and similar names and reference numerals are used for similar parts throughout the specification.

1 and 2 are exploded perspective views showing an arch-adaptive smart insole according to an embodiment of the present invention, wherein FIG. 1 is an exploded perspective view seen from above and FIG. 2 is an exploded perspective view seen from below. is. FIG. 3 is an exploded perspective view showing an arch spring module of an arch-adaptive smart insole according to one embodiment of the present invention. FIG. 4 is an exploded perspective view showing the rear spring module of the arch-adaptive smart insole according to one embodiment of the present invention.

The arch-adaptive smart insole according to one embodiment of the present invention has the function of automatically adapting to various types of arches to support the arch, and includes an insole cushion foam 10, an arch spring module 10, a rear spring module 30, and a cover. 40.

The insole cushion foam 10 is made of elastic foam having a shape corresponding to the shape of the foot when viewed from above, and has elasticity, resilience, moldability, and the like. It can be formed of foam, sponges and the like.

The insole cushion foam 10 has a first placement hole 11 in which the arch spring module 20 is placed at a position corresponding to the arch of the foot, and a second placement hole in which the rear spring module 30 is placed at a position corresponding to the heel of the foot. 12 are configured. Although the upper portions of the first placement hole 11 and the second placement hole 12 are closed, they are formed at the same time when the insole cushion foam 10 is molded from the same material as the insole cushion foam 10 . That is, the first closing portion 18 that closes the upper portion of the first placement hole 11 and the second closing portion 19 that closes the upper portion of the second placement hole 12 are made of the same material as the insole cushion foam 10 . It is formed at the same time as molding. Fabrics or sheets of various materials can be adhered to the upper surface of the insole cushion foam 10 . The inside of the first arranging hole 11 may have a step, especially after forming the step to accommodate the upper end of the first coil spring 21 of the arch spring module 20, at a higher height (a deeper depth). ) to fix the upper end of the first coil spring 21 .

A groove having a depth and a shape corresponding to the thickness of the cover 40 is formed on the bottom surface of the insole cushion foam 10 so that the cover 40 can be combined, and the volumes of the first and second placement holes 11 and 12 are changed by walking. It has a structure for providing wind to the feet by using the air pressure generated as a result. At the position of the long spring (front width) of the foot, the insole cushion foam 10 has a slightly raised portion, and has at least one or more through holes 13 penetrating the upper and lower surfaces of the insole cushion foam 10.例文帳に追加The through hole 13 communicates with the first arrangement hole 11 using the buffer well 17 and the first trench 14 formed in the insole cushion foam 10, and the first arrangement hole 11 is placed in the second arrangement using the second trench 15. Communicate with hole 12. As a result, the volume change of the first arrangement hole 11 and the second arrangement hole 12 accompanying walking discharges the wind to the Ryusen side of the foot through the second trench 15 and the first trench 14, the buffer well 17, and the through hole 13. and inhalation.

The insole cushion foam 10 has a cylindrical partial side wall 16 surrounding the arch spring module 11, and a space S in which no insole cushion foam is formed is formed outside the side wall 16. , to assist the expansion and contraction of the arch spring module 11 .

The cover 40 is bonded to the insole cushion foam 10 while being arranged in the groove formed in the insole cushion foam 10, and is formed using a hard material. The cover 40 supports the lower ends of the arch spring module 20 and the rear spring module 30 and is bonded to the insole cushion foam 10 while closing the lower portions of the first and second placement holes 12 . The cover 40 accommodates the first circular groove 41 for supporting and fixing the lower end of the third coil spring 23 of the arch spring module 20 and the lower ends of the fourth coil spring 31 and the fifth coil spring 32 of the rear spring module 30. A second circular groove 42 with a supporting step is provided.

In the heel portion of the insole cushion foam 10, the height H2 of the medial portion of the foot is made lower than the height H1 of the lateral portion of the foot (see FIG. 5). Accordingly, the upper surface of the insole cushion foam 10 is formed with a slight inclination from the lateral portion of the foot to the medial portion of the foot. The insole forms a slope that is higher on the outer side of the foot and lower on the inner side of the foot. It becomes possible to prevent deformation into an "O" shape by concentrating on the .

Referring to FIG. 3, the rear spring module 30 is arranged in the second placement hole 11 of the insole cushion foam 10 to elastically support the heel of the foot. The rear spring module 30 includes a fourth coil spring 31 and a fifth coil spring 32 concentrically arranged and having different diameters, and a solid support 33 .

The fourth coil spring 31 and the fifth coil spring 32 are formed by spirally winding a band-shaped flat plate material having elasticity and being wider than the thickness. such that the bulging portion of the previous turn (N-1th turn) meets the dented portion of the current turn (Nth turn). The solid support part 33 supports the upper end of the fourth coil spring 31 and the upper end of the fifth coil spring 32, is located below the closing part 19 of the second arrangement hole 11, and is made of a relatively hard material. , The pressure applied to the heel during walking is transmitted to the fourth coil spring 31 and the fifth coil spring 32 through the solid support portion 33 .

The solid support portion 33 has a downwardly raised cylindrical side wall 332 and a flange portion 331 outside the cylindrical side wall 332 . The upper end of the fifth coil spring 32 is in contact with the flange portion 331, and the inner side of the upper end of the fifth coil spring 32 is inserted into the outer side of the cylindrical side wall 332 to prevent the fifth coil spring 32 from being detached from the cylindrical side wall 332. By inserting the upper end of the fourth coil spring 31 inside the side wall 332, the fourth coil spring 31 is prevented from being detached.

Referring to FIG. 4 , the arch spring module 20 is positioned in the insole cushion foam 10 while being positioned in the first well 11 , and through the closure portion 18 of the insole cushion foam 10 that blocks the top of the first placement hole 11 . support the arch of the foot.

The arch spring module 20 includes a first coil spring 21 , a second coil spring 22 , a third coil spring 23 and a disk-shaped movement supporter 24 . The disk-shaped movement support part 24 is made of resin such as plastic, has the first coil spring 21 and the second coil spring 22 positioned on its upper surface, and has the third coil spring 23 positioned on its lower surface.

The disk-shaped movement support part 24 is substantially disk-shaped, and the lower ends of the first coil springs 21 and the second coil springs 22 are arranged on the upper surface (first surface) so that the first coil springs 21 and the second coil springs 22 are arranged. , and the upper end portion of the third coil spring 23 is arranged on the lower surface (second surface) facing the upper surface to support the third coil spring 23 . A flange portion 242 formed at the edge of the disc-shaped movement support portion 24 and thinner than the disc-shaped movement support portion 24 supports the lower end of the second coil spring 22 and is formed inside the disc-shaped movement support portion 24 . A lower end portion of the first coil spring 21 is supported in the first circular groove 241 . A second circular groove 243 is formed in the lower surface of the disk-shaped movement supporter 24 to support the upper end of the third coil spring 23 .

The third coil spring 23 has an upper end disposed on the second surface (lower surface) opposite to the first surface (upper surface) of the disk-shaped movement supporter 24 and supports the load via the disk-shaped movement supporter 24 . In addition, the disc-type movement supporter 24 can move up and down while being guided by the inner surface of the first placement hole 11 in the first placement hole 11 .

The first coil springs 21, the second coil springs 22 and the third coil springs 23 are formed by spirally winding a band-shaped plate material having elasticity and being wider than the thickness. The plate material draws a curve like a sine wave, and is configured so that the bulging part of the previous turn (N-1th turn) and the dented part of the current turn (Nth turn) collide. can be

According to one aspect of the present invention, the planar surfaces of the flat plates at the upper ends of the first and second coil springs 21 and 22 respectively support the closure portion 18 of the insole cushion foam 10 . The plate member of the last turn at the upper ends of the first coil springs 21 and the second coil springs 22 also has a flat surface, but may not form a sine wave.

FIG. 6(a) shows the correspondence between the arch spring module 20 of the arch-adaptive smart insole according to one embodiment of the present invention and the foot arch profiles F, F', and FIG. 6(b) shows: This is a comparative example showing the correspondence between the spring and foot arch profiles F, F' when a general coil spring is applied to the arch portion of the insole.

According to one feature of the present invention, a first coil spring 21 having a smaller diameter than the second coil spring 22 is positioned inside the second coil spring 22 of the arch spring module 20, and the upper end of the second coil spring 22 is the first coil spring. It is characterized by being lower than the upper end of the one-coil spring 21 so as to roughly correspond to the arch of the foot. As an example, considering the step formed inside the first well, the upper ends of the first coil spring 21 and the second coil spring 22 correspond to the curvature of the arch of the concave foot or similar curvature. It is preferred to try to

In the case of a general coil-type spring, if the one-turn circle at the top end supports the arch of the foot, the arch spring module 20 according to one embodiment of the present invention may be the first coil spring 21 at the top. One turn at the upper end and one turn at the upper end of the second coil spring 22 support the arch of the foot at different portions and different heights in two circles, a smaller circle and a larger circle, respectively. Furthermore, compared to the general springs wound with thin rod-shaped wires, the first and second coil springs wound with a flat plate have a smaller degree of penetration into the cushion foam and an area capable of supporting pressure. Even bigger. In the case of general springs, the upper end is easily inserted into the cushion foam, but the first and second coil springs applied to the arch of the foot do not easily enter the cushion foam, so there is a firm support in the middle. To effectively utilize the fact that a cushion foam may be directly supported without forming a structure (something like the "arch correction plate" of Patent Document 3). In addition, as described above, the uppermost one turn of the first coil spring 21 and the uppermost one turn of the second coil spring 22 are supported by two circles, respectively, so the area for supporting the arch of the foot is greatly increased. has the effect of increasing While the embodiment of the present invention uses two coil springs to directly support the cushion foam in the arch, more than two coil springs can be configured to achieve greater support area.

On the other hand, as shown in FIG. 6(b), the use of a single general coil spring can only have a relatively long spring length, causing the spring to fall sideways or sideways when compressed during repeated use. Bending problems can occur. In particular, when the material that surrounds the outside of the spring is cushion foam, it is difficult for cushion foam, which is a flexible and elastic material, to guide such springs effectively. It results in the fact that it is difficult to incorporate it as it is. However, according to the present invention, the disk-shaped movement support part 24 is formed between the first and second coil springs and the third coil spring, so that the springs fall sideways or bend sideways as described above. This has the effect of greatly reducing the problem of sagging and allowing the arch spring module to maintain an overall stable posture even during compression.

FIG. 7(a) shows the arch spring module 20 of the arch-adaptive smart insole according to an embodiment of the present invention corresponding to various types of foot arches, and FIG. 7(b) shows various types of foot arches. Fig. 2 is a plan view showing a foot arch;

When the arch of the foot applies a load to the arch spring module 20 through the insole cushion foam 10, in the case of a concave foot (see profile F1), the first coil spring 21 and the second coil spring 22 are compressed almost at the same time, correspondingly. As a result, the third coil spring 23 is compressed. Concave feet have less contact with the ground when walking, so they feel tired easily, and secondary pain and inflammation in the soles and toes, and pain in the knees may occur. By being supported by the wide support areas of the first coil springs 21 and the second coil springs 22, such problems are significantly reduced.

In the case of a normal foot (see profile F2), the first coil spring 21 begins to be compressed first, and the second coil spring 22 is compressed by a slight difference. When the load is small, the normal foot feels the pressure of the first coil spring 22, but when the load exceeds a certain level, it is supported by the first coil spring 21 and the second coil spring 22 at the same time, and the third coil spring correspondingly. 23 are compressed.

In the case of flat feet (see profile F3), the first coil spring 21, the second coil spring 22 and the third coil spring 23 are strongly compressed. A flat foot has a flatter profile, so the distance (stroke) to compress the arch spring module 20 is much greater, and the arch feels more pressure. A flat foot feels chronic fatigue due to a large area of contact with the ground when walking, and when viewed from the outside, the arch on the inside of the foot collapses and the heel tilts outward. Strong pressure is applied to the arch part, which leads to a certain autonomic correction effect. In particular, there is a phenomenon that normal feet shift to flat feet due to aging.

Claims (9)

An insole cushion foam (10) made of elastic foam having a shape corresponding to the shape of the foot,
A closing part (18) of the insole cushion foam (10) arranged in the first arrangement hole (11) of the insole cushion foam (10) and closing the upper part of the first arrangement hole (11). an arch spring module (20) that supports the arch of the foot through
The arch spring module (20) includes at least a first coil spring (21) and a second coil spring (22), and the second coil spring (22) is inside the second coil spring (22). An arch-adaptive smart insole, characterized in that said first coil spring (21) with a smaller diameter is located. Claim 1, wherein the upper end of the second coil spring (22) is configured to be lower than the upper end of the first coil spring (21) so as to correspond to the arch of the foot. The arch-adaptive smart insole described in . The first coil spring (21) and the second coil spring (22) are formed by spirally winding a band-shaped plate material having elasticity and being wider than the thickness,
At the upper ends of the first coil spring (21) and the second coil spring (22), the flat surface of the flat plate supports the closing part (18) of the insole cushion foam (10) respectively. The arch-adaptive smart insole according to claim 2. The arch spring module (20) comprises:
A disk-shaped part in which the lower ends of the first coil spring (21) and the second coil spring (22) are arranged on the first surface to support the first coil spring (21) and the second coil spring (22) a moving support (24),
A third coil spring (23) having an upper end disposed on the second surface opposite to the first surface of the disc-shaped movement support (24) and supporting the load via the disc-shaped movement support (24). ), further comprising
The arch-adaptive smart insole according to claim 3, wherein the disk-shaped movement support (24) can move up and down in the first placement hole (11). further comprising a rear spring module (30) arranged in the second placement hole (11) of the insole cushion foam (10) and supporting the heel of the foot;
The rear spring module (30) comprises:
a fourth coil spring (31) and a fifth coil spring (32) concentrically arranged and having different diameters;
It supports the upper end of the fourth coil spring (31) and the upper end of the fifth coil spring (32) and is positioned below the closing portion (19) of the second placement hole (11) and is made of a hard material. 5. The arch-adaptive smart insole according to claim 4, comprising a solid support (33). supporting the lower ends of the arch spring module (20) and the rear spring module (30) while closing the lower portions of the first and second placement holes (12);
6. The arch-adaptive smart insole of claim 5, further comprising a cover (40) bonded to the insole cushion foam (10). At least one or more through holes (13) passing through the upper and lower surfaces of the insole cushion foam (10),
Arch-adaptive according to claim 5, wherein the through holes (13) communicate with the first and second locating holes (12) by means of trenches configured in the insole cushion foam (10). smart insoles. The arch-adaptive smart insole according to claim 1, wherein in the heel portion of the insole cushion foam (10), the height of the medial foot portion is lower than the height of the lateral foot portion. A self-healing shoe, characterized in that it is provided with an arch-adaptive smart insole according to any one of claims 1 to 7.

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