KR102493347B1 - Functional slippers for preventing foot disease and correcting feet - Google Patents

Abstract

The present invention relates to functional slippers for preventing and correcting foot diseases, and includes an outsole divided into forefoot, midfoot, and hindfoot parts, an instep band having both ends fixed to the outsole and covering the instep, and filling the gap between the outsole and the arch of the foot. It is characterized in that it includes a contact pad formed to form a gentle curve toward the forefoot from the rear foot of the outsole to support the arch of the foot.

Description

Functional slippers for preventing foot disease and correcting feet}

The present invention relates to a functional slipper for preventing and correcting foot diseases, and more particularly, by forming an adhesion pad on the sole to prevent and correct deformation of the foot, and by forming a buffer on the bottom surface of the sole to form a center of pressure on the sole during walking. It relates to functional slippers for preventing and correcting foot diseases that correctly guide the pathway.

Because the human body is connected with a kinetic chain that leads to the foot-knee-pelvis-vertebral column, foot disease and deformity of the foot can cause pain and deformation of the knee, waist, and shoulder, which are various diseases of the musculoskeletal system. Therefore, there is a need for shoes capable of distributing foot pressure and inducing correct gait of the user.

Among various types of shoes, slippers have been chosen by users because of the simplicity and convenience of opening most of the feet. Inversion may occur. Therefore, when the slippers are worn for a long time, the wrong gait form is maintained and various foot diseases and deformations may be caused.

Therefore, there is a demand for an outsole structure capable of increasing adhesion between the foot and the slipper, reducing fatigue caused by long-time wearing, and inducing a correct walking pattern.

The following [Document 1] relates to a slipper with an arch portion, and discloses a slipper in which the upper end is inserted between the midsole and the outsole formed with the arch portion, and then the midsole and sole excluding the arch portion are sewn together with a suture thread.

[Document 1] can provide comfort and stability because the arch part is formed on the upper part of the midsole and the arch part is in close contact with the sole of the foot, but the arch part of [Document 1] is only in close contact with the inner arch of the sole, and the Inversion is a problem that cannot be prevented.

In addition, the following [Document 2] relates to a shoe sole having an inclined groove according to the position of the foot joint and the movement of the foot skeleton, and the inclined groove is formed to correspond to the joint position of the foot from the rear end with respect to the entire length of the sole, so as to bend the foot. A shoe sole that can be bent naturally is disclosed.

However, [Document 2] is designed to bend the outsole like a foot with an inclined groove corresponding to the position of the foot joint and the movement of the foot skeleton, and cannot effectively induce the pressure movement of the foot according to walking. There is a problem in that it is difficult to reduce the pressure applied to the calcaneus and metatarsal head, which are protruding parts of the foot where fatigue accumulates.

[Document 1] Korea Utility Model Registration No. 20-0441101 (Announced on July 15, 2008)

[Document 2] Korean Patent Registration No. 10-1833886 (2018.02.23. Notice)

The present invention is to solve the problems of the prior art as described above, and an object of the present invention is to form a contact pad supporting the arch of the foot by filling the gap between the sole and the arch of the foot to prevent varus of the metatarsal and improve the propulsive force of walking. It is to provide functional slippers for preventing and correcting foot diseases that can increase efficiency.

Another object of the present invention is to prevent excessive internal rotation that can occur in the stance phase when the foot touches the ground by forming a shock absorber on the bottom surface of the sole that can induce the correct pressure center path during walking, and foot disease that can correct the foot It is to provide functional slippers for prevention and correction.

Another object of the present invention is to form a heel cup covering the heel on the hindfoot part of the close pad to collect heel fat, prevent the foot from leaving the slipper, and prevent foot diseases that can alleviate the shock applied to the foot and It is to provide functional slippers for correction.

Functional slippers for preventing and correcting foot diseases according to the present invention for achieving the above object are a sole divided into a forefoot, a midfoot, and a hindfoot, an instep band fixed at both ends to the sole and covering the instep, the sole and It is characterized in that it includes a contact pad formed to achieve a gentle curve from the rear foot portion toward the forefoot portion of the sole to support the foot arch by filling the gap of the foot arch.

In addition, the contact pad is characterized in that formed integrally with the outsole.

In addition, the contact pad is characterized in that it is formed as a separate insole that can be used overlapping the upper part of the outsole.

In addition, the contact pad is a transverse arch support protruding from the first area of the outsole corresponding to the metatarsal bone of the foot arch, an inner calf support protruding from the second area of the outsole so as to adhere to the inner side of the foot, and the outer side of the foot to adhere to the An outer longitudinal arch support protruding from a third area of the outsole, wherein the transverse arch support is formed in an island shape separated from the inner longitudinal arch support and the outer longitudinal arch support.

In addition, the contact pad includes a heel cup that protrudes upward from the rear foot portion and covers the heel, and the heel cup connects the inner calf arch support and the outer calf arch support.

In addition, the transverse arch support is formed in a dome shape higher than the surroundings so as to be in close contact with the center of the foot arch, and the inner side of the transverse arch support is formed higher than the outer side.

In addition, the inner calf arch support and the outer calf arch support face each other and are formed by protruding with a thinner thickness toward the upper edge of the sole, and the upper end of the inner calf arch support is formed higher than the upper end of the outer calf arch support. characterized by being

In addition, the outsole and the inner and outer sides of the contact pad are characterized in that they protrude across the forefoot portion and the midfoot portion so that the toes are dorsiflexed.

In addition, the bottom surface of the outsole includes a buffer for inducing a pressure center path during walking, wherein the buffer includes a first buffer recess and a second buffer corresponding to the positions of the first metatarsal head, the fifth metatarsal head, and the calcaneus, respectively. It is characterized in that it includes a groove, and a third buffer groove.

In addition, the buffer unit may include a fourth buffer groove forming a linear groove along an outer line of the sole from the third buffer groove to the second buffer groove.

According to the present invention as described above, by forming a contact pad for closely supporting the arch of the foot, varus prevention of the metatarsal bone can be prevented and the propulsive force of the foot can be improved to increase the efficiency of walking and to maintain the correct alignment of the body.

In addition, in the present invention, buffer grooves corresponding to the first metatarsal head, the fifth metatarsal head, and the calcaneus are formed on the bottom surface of the sole, so that the path of the center of pressure of the foot can be guided from the heel to the big toe along the outer line of the foot during walking. It can prevent flat feet and correct feet by preventing excessive internal rotation that can occur during the stance phase in contact with the ground, and it can absorb shock and distribute pressure by making the contact area of the hindfoot, midfoot, and forefoot wider.

In addition, the present invention can prevent the heel from separating from the slipper and alleviate the impact applied to the foot by forming a heel cup covering the heel in the rear foot of the contact pad.

1 and 2 are views for explaining the structure of the human foot;
3 is a left side view of a functional slipper for preventing and correcting foot diseases according to an embodiment of the present invention;
4 is a right side view of a functional slipper for preventing and correcting foot diseases according to an embodiment of the present invention;
Figure 5 (a) is a plan view of functional slippers for preventing and correcting foot diseases according to an embodiment of the present invention, (b) is a plan view excluding the instep band in (a),
6 is a front view of functional slippers for preventing and correcting foot diseases according to an embodiment of the present invention;
7 is a rear view of functional slippers for preventing and correcting foot diseases according to an embodiment of the present invention;
8 is a side view of the outsole and the contact pad of the slipper according to an embodiment of the present invention;
9 is a view for explaining the bottom surface of the sole of a functional slipper for preventing and correcting foot diseases according to an embodiment of the present invention, and
10 is a AA cross-sectional view of FIG. 4 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Like reference numerals in each figure indicate like elements. In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

1 and 2 are views for explaining the structure of the foot of the human body. Functional slippers according to the present invention can be manufactured according to the shape of the right foot and left foot, and have a symmetrical structure, so the description will be made based on the right foot slipper below.

Also, the term "inside" refers to the inside of the feet facing each other, and the term "outside" refers to the outside of the feet.

In the human foot, there are first to fifth metatarsal bones that support the instep from the rear of the toe, and the portion where each metatarsal bone and toe bone touch is called a metatarsal head. Hereinafter, the metatarsal head connected to the big toe bone will be referred to as the first metatarsal head 10, and the metatarsal head connected to the little toe bone will be referred to as the fifth metatarsal head 20. The first metatarsal head 10, the fifth metatarsal head 20, and the calcaneal bone 30, which protrude from the sole corresponding to the arch of the foot, first come into contact with the ground during walking.

In FIG. 1, a triangle is formed with the first metatarsal head 10, the fifth metatarsal head 20, and the calcaneus 30 as vertices, and each side of the triangle has a convexly curved foot arch upward. will form The part connecting the first metatarsal head 10 and the fifth metatarsal head 20 is the transverse arch, the inner part of the foot, and the part connecting the first metatarsal head 10 and the calcaneus 30 is the inner calf arch, the outer part of the foot and the first 5 The part connecting the metatarsal head 20 and the calcaneus 30 forms an outer calf arch, respectively. In general, the inner calf arch of the foot is larger than the lateral calf arch.

3 to 7, the functional slippers according to the present invention include an outsole 100 and an instep band 110 having both ends fixed to the outsole 100 and covering the instep. Functional slippers include a forefoot portion 1a, which is the front portion of the sole 100, a midfoot portion 1b, which extends from the forefoot portion 1a and is a central portion of the sole 100, and a sole that extends from the midfoot portion 1b. It can be divided into the hindfoot part (1c), which is the rear part of (100).

The outsole 100 is the base of the slipper and is manufactured according to the size of the foot and supports the sole of the foot. The outsole 100 may be made of elastic urethane or rubber. A pattern may be formed on the bottom surface 100b of the outsole 100 to absorb shock and increase frictional force with the ground.

Both ends of the instep band 110 are fixed to the sole 100 to cover the instep and metatarsal bones. The instep band 110 may be molded integrally with the outsole 100 or fixed by an adhesive or the like.

The functional slipper according to the present invention has an adhesion pad 100a formed to form a gentle curve from the rear foot 1c of the sole 100 toward the forefoot 1a to support the foot arch by filling the gap between the sole 100 and the foot arch. include The contact pad 100a is provided on the upper surface of the sole 100 and may be integrally molded with the sole 100 . According to one embodiment, a separate insole that can be overlapped and used may be formed on the top of the outsole 100 . In this embodiment, the contact pad 100a is formed on the top of the insole overlapping the sole 100.

The heel part 1c of the close pad 100a includes a heel cup 150 that covers a heel, that is, a calcaneus prominence. The heel cup 150 collects the fat layer of the heel to prevent the heel from being separated from the slipper and relieves the shock applied to the foot. The heel cup 150 is formed integrally with the contact pad 100a and is connected to the calf support 130 and 140 to be described later.

Referring to FIG. 5, the contact pad 100a is attached to the transverse arch support 120 protruding from the midfoot part 1b toward the center of the foot to support the metatarsal bone of the foot, and to the inside of the contact pad 100a to adhere to the inside of the foot. It includes an inner calf support 130 that protrudes and an outer calf support 140 that protrudes from the outside of the contact pad 100a so as to be in close contact with the outside of the foot.

The inner calf support 130 is formed in the second area corresponding to the inner side of the foot in the sole 100 . The inner calf support 130 prevents and corrects flat feet by supporting the inner calf and preventing excessive internal rotation of the foot and collapse of the arch inward, which may occur during walking.

The outer calf support 140 is formed in a third region of the outsole 100 corresponding to the outside of the foot. The lateral calf support 140 supports the lateral calf arch to prevent an ankle varus or an outward collapsing of the arch during walking, thereby preventing an ankle sprain.

The inner calf support 130 and the outer calf arch support 140 face each other at the top of the contact pad 100a, and the thickness of the protruding ridge becomes thinner toward the top from the rim of the outsole 100. At this time, since the inner calf arch of the human body is anatomically formed larger than the outer calf arch, as shown in FIG. It is desirable to form as high as h).

The transverse arch support 120 protrudes from the outsole 100 to a first area corresponding to the metatarsal bone of the foot. The transverse arch support 120 protrudes in a dome shape higher than the surroundings so as to be in close contact with the center of the foot arch from the midfoot portion 1b of the close pad 100a, and provides a gap between the first metatarsal head 10 and the fifth metatarsal head 20. It supports the transverse arch, which is an arch, and the metatarsal bone in the middle of the sole.

In detail, in a triangle formed when points corresponding to the first metatarsal head 10, the fifth metatarsal head 20, and the calcaneus 30 are connected with a straight line, the portion corresponding to the transverse arch and the protruded to support the metatarsal bone And, the transverse arch support 120 is formed in an island shape separated from the inner longitudinal arch support 130 and the outer longitudinal arch support 140, respectively.

The transverse arch support 120 supports the metatarsal bone, which is the center of the sole, to distribute weight/pressure, and can prevent varus valgus of the metatarsal bone, thereby preventing and correcting valgus valgus.

Meanwhile, the transverse arch support 120 is inclined in a direction from the first metatarsal head 10 and the fifth metatarsal head 20 toward the metatarsal bone. The inclination of the transverse arch support 120 is formed so that the shape of the forefoot portion 1a from the metatarsal heads of the first metatarsal head 10 and the fifth metatarsal head 20 toward the center of the foot is dorsiflexed, allowing for smooth foot roll during walking. It makes dorsiflexion of the toes natural and induces an arch winding effect.

At this time, since the inner side of the first metatarsal head 10 is anatomically formed deeper than the outer fifth metatarsal head 20, the inclination formed in the transverse arch support 120 makes the inner portion more than the outer portion. formed high.

In addition, as shown in FIG. 8, the forefoot 1a and the forefoot dorsiflexion along with the inner and outer sides of the sole 100 and the inner longitudinal arch support 130 and the outer longitudinal arch support 140 of the contact pad 100a. It protrudes upward across the midfoot portion 1b to facilitate foot roll when walking, and to naturally dorsiflexion of the toe, thereby inducing an arch winding effect.

9 is a view for explaining the bottom surface of the sole of a functional slipper for preventing and correcting foot diseases according to the present invention, and FIG. 10 is a cross-sectional view A-A of FIG.

On the other hand, in general walking, the gait cycle can be divided into a stance phase and a swing phase. The stance phase refers to the period during which the slipper is in contact with the ground during the gait cycle, and the swing period refers to the period during which the slipper is away from the ground during the gait cycle. .

When the slipper touches the ground in the stance phase, the pressure of the sole is concentrated on the first metatarsal head 10, the fifth metatarsal head 20, and the calcaneus 30. If walking continues, these protruding parts of the sole cause significant fatigue feel the

The functional slippers according to the present invention include a shock absorber formed on the bottom surface 100b of the sole 100 to induce movement of the center of pressure during walking and to absorb impact.

The buffer unit has a first buffer groove 11, a second buffer groove 21, and a third buffer groove respectively corresponding to the positions of the first metatarsal head 10, the fifth metatarsal head 20, and the calcaneus 30. (31). According to one embodiment, each buffer groove 11, 21, 31 is preferably formed in an elliptical shape, but is not limited thereto.

Anatomically, in a normal human foot, the inner arch is larger than the outer arch, and the outer calf arch contacts the ground first during walking, so that the pressure is concentrated on the outer calf arch rather than the inner calf arch. That is, in the stance phase, the pressure on the sole of the foot starts at the calcaneus 30 and the center of pressure moves to the fifth metatarsal head 20 and the first metatarsal head 10 along the outer calcaneal arch. The path of moving the center of pressure is called a center of pressure (COP) path 40, and the COP path 40 is formed along the outer line of the foot from the calcaneus 30 to the fifth metatarsal head 20.

The buffer unit includes a fourth buffer groove 41 forming a linear groove along the COP path 40 from the third buffer groove 31 to the second buffer groove 21 on the bottom surface 100b. The fourth buffer groove 41 induces the pressure of the sole of the foot to be generated along the correct COP path 40 during walking, thereby improving the inner support force of the slipper and preventing excessive internal rotation that may occur during walking.

As described above, the functional slipper according to the present invention has a first buffer groove 11, a second buffer groove 21, a third buffer groove 31, and a fourth buffer groove 41 on the bottom surface 100b. This formation induces the correct COP path 40 during walking, buffers the shock caused by the movement of the center of pressure, and improves the inner bearing capacity of the slipper to absorb the shock applied to the foot.

In addition, the functional slipper according to the present invention has inner and outer arch supports 130 and 140 supporting the inner longitudinal arch and outer longitudinal arch and the transverse arch support 120 supporting the transverse arch and metatarsals in the close contact pad 100a. It fills the gap between the outsole and the arch of the foot to support the arch of the foot, leading to proper alignment of the body during walking.

In addition, in the functional slipper according to the present invention, a heel cup 150 is formed to prevent the heel from being separated from the slipper by collecting the heel in the rear foot portion 1c of the close pad 100a, thereby reducing the shock applied to the foot during walking. can alleviate

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be.

100: outsole 100a: contact pad
110: Instep band 120: Transverse arch support
130: inner calf support 140: outer calf support
150: Heel Cup

Claims (10)

Outsole divided into forefoot, midfoot, and hindfoot;
An instep band having both ends fixed to the sole and covering the instep;
A contact pad formed to form a gentle curve from the rear foot of the sole to the forefoot to support the foot by filling the gap between the sole and the foot,
A bottom surface of the outsole includes a shock absorbing part for inducing a path of a pressure center of the foot, wherein the shock absorbing part includes a first buffer groove, a second buffer groove, and a second buffer groove corresponding to the positions of the first metatarsal head, the fifth metatarsal head, and the calcaneus, respectively. Functional slippers for preventing and correcting foot diseases, characterized in that they include 3 buffer grooves and a 4th buffer groove forming a linear groove along the outer line of the sole from the third buffer groove to the second buffer groove. . According to claim 1,
Functional slippers for preventing and correcting foot diseases, characterized in that the contact pad is formed integrally with the sole. According to claim 1,
Functional slippers for preventing and correcting foot diseases, characterized in that the contact pad is formed as a separate insole that can be overlapped on the top of the sole. According to claim 1,
The contact pad includes a transverse arch support protruding from the first area of the outsole corresponding to the metatarsal bone of the foot arch, an inner calf support protruding from the second area of the outsole to adhere to the inner side of the foot, and a sole of the sole to adhere to the outer side of the foot. Including an outer longitudinal arch support protruding from the third region,
Functional slippers for preventing and correcting foot diseases, characterized in that the transverse arch support is formed in the form of an island separated from the inner longitudinal arch support and the outer longitudinal arch support. According to claim 4,
The adhesion pad includes a heel cup that protrudes upward from the rear foot portion and surrounds the heel,
Functional slippers for preventing and correcting foot diseases, characterized in that the heel cup connects the inner calf support and the outer calf support. According to claim 4,
The transverse arch support is formed in a dome shape higher than the surroundings so as to be in close contact with the center of the foot arch,
Functional slippers for preventing and correcting foot diseases, characterized in that the horizontal arch support is formed higher on the inner side than the outer side. According to claim 4,
The inner longitudinal arch support and the outer longitudinal arch support face each other and are formed by protruding from the rim of the outsole to a thinner thickness toward the upper side,
Functional slippers for preventing and correcting foot diseases, characterized in that the top of the inner calf support is formed higher than the top of the outer calf arch support. According to claim 4,
Functional slippers for preventing and correcting foot diseases, characterized in that the inner and outer sides of the outsole and the contact pad protrude across the forefoot and midfoot so that the toes are dorsiflexed. delete delete

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