KR20100119986A

KR20100119986A - Outsole of shose having forefoot rocker and shose having the same

Info

Publication number: KR20100119986A
Application number: KR1020090038941A
Authority: KR
Inventors: 박인식
Original assignee: 박인식
Priority date: 2009-05-04
Filing date: 2009-05-04
Publication date: 2010-11-12
Also published as: WO2010128785A2; WO2010128785A3; CN102448341A; KR100995491B1

Abstract

Disclosed is a shoe sole characterized in that a body corresponding to the metatarsal part of the foot is formed thinner than other parts, and an additional part separate from the main body is provided at the part corresponding to the metatarsal part. At this time, the appendage is extended to the midfoot region, which is more rearward than the metatarsal bone, and when viewed in the state cut in the longitudinal axis of the foot may be formed thicker than the front portion of the appendage.

According to the present invention, the convenience of walking can be increased, and at the same time, the durability of the metatarsal bone under high pressure can be increased, and additionally, the left and right balance and the distribution of the force can be made according to the configuration, thereby improving stability.

Description

Shoe sole with backing and shoe with same {outsole of shose having forefoot rocker and shose having the same}

The present invention relates to a shoe, and more particularly, to a shoe sole and a shoe having the same structure to increase the comfort and stability of the four-step walk while having durability.

The components of the foot may form a basic fixed structure to perform the function of the foot well in a line state and a moving state, and form some formal shape and structure by combining with each other in each state.

The shape of the foot during the walking process varies with each period, and the walking process can be classified into four stages according to the shape of the foot during walking. When the foot is said to be four steps of walking, touching the whole heel, lifting the heel, and pushing the forefoot on the basis of the motion, the foot goes through these four walking steps periodically and repeats the steps.

First, a foot that walks normally in the heel contact, which is the first step of walking, forms a dorsiflexion when the heel touches the ground, and walks normally in the full touch, which is the second step of walking. The feet will form Plantarflexion, which extends the ankles as they reach the ground.

In addition, in the third step of lifting the heel, the ankle is further extended and the plantar flexion is intensified, so that the joint part connecting the metatarsal head and the first bone of the toe is bent upward. In the fourth step, forefoot push, the toe of the foot is formed in the plantar flexion, and in the third step, the toe is pushed back to the ground as the calves and the vertebrae, which are angled, spread out, and then back to the first step of walking. As you prepare for the transition, your feet will bend and your feet will fall off the ground.

In order to walk smoothly at each of these stages, the components of the foot have some formal shape in relation to each other, and if the shape is not properly implemented for any reason, walking becomes inefficient, on the other hand, Excessive pressure or force may be applied to each part to cause damage or deformity, and on the other hand, a necessary part of the foot may not be sufficiently used, and thus the function of the foot is weakened along with the malformation of the foot.

On the other hand, the shoe protects the foot from damage caused by external heat, cold, and contact with external objects, and has a positive effect of mitigating the impact of the foot when moving, but it has a negative effect on the foot by limiting natural movement of the foot. It may be.

For example, when the sole of a conventional shoe is made of a rigid member having a certain level of mechanical strength to protect the foot from the ground and to have durability of the shoe itself, there is no big problem in the stationary state, but the rigid member is used when walking or driving. There is a problem that restricts natural movement to use more force than necessary or prevents the foot from walking. In particular, the third step of walking prevents the foot from being sufficiently deformed to achieve the heel lifting action, that is, plantar flexion. As mentioned above, if the foot is not sufficiently deformed in the third step, the elasticity of the muscles is accumulated in the foot, so that the end part pushes the ground in the fourth step. After all, there is a problem that the efficiency of walking falls.

On the contrary, if the sole is made of a soft material, durability may be reduced, and foot stability may be reduced. In addition, depending on the material may be a cost burden for durability.

In addition, the conventional ready-made shoes are often used to absorb the impact absorbing elastic material as the sole of the shoe to reduce the landing impact during driving or walking, but these shock absorbing elastic materials are left to right from the center of the foot when landing the foot, depending on the position used It is easy to cause the problem of increasing the instability of the. For example, shoes that use an air chamber in the middle of the heel to utilize air compression as a cushion are more likely to cause ankle damage due to unbalanced left and right feet when the heel lands.

The present invention is to solve or alleviate the problems of the above-described conventional shoes in walking, shoe soles to increase the convenience of walking by making it easy to lift the heel in the third step of the four-step walking And for providing shoes.

In addition, it is an object of the present invention to provide a shoe sole and a shoe employing the same that can increase the durability of the foot portion under high pressure at the same time.

In addition, an object of the present invention is to provide a shoe sole and a shoe that can be balanced by the left and right balance of the foot when walking and increase the stability.

Sole of the present invention for achieving the above object,

The body corresponding to the metatarsal portion of the foot is formed thinner than the other portion, and the portion corresponding to the metatarsal portion is characterized in that the installation portion separate from the main body.

In the present invention, the pad portion is formed in the outer corresponding portion of the foot longer than the inner corresponding portion of the foot relative to the center of the body is installed to extend to the metatarsal region area that is more rearward than the metatarsal bone, the cut when viewed in the longitudinal axis of the foot The rear portion of the back portion may be formed thicker than the front portion.

In the present invention, the sole has a heel formed in the rear portion corresponding to the heel, the inner side of the bent body may be made of Thomas heel (Thomas heel) protruding forward more than the outside. At this time, the bent rear end may be a luxury heel (SACH heel) is installed in the middle of the thickness in the wedge shape.

In the present invention, particularly in shoes such as women's high heels with a narrow heel, the ridge extends to the midfoot region that is more rearward than the metatarsal portion, and the rear portion of the ridge portion is seen in the front portion when viewed with the longitudinal axis of the foot. It is formed thicker than that, and the rear part corresponding to the heel has a bend having an inner and outer width of 3 cm or less in contact with the ground, and a part of the stabilizing part protruding from the inner side and the outer side is formed at the portion extending to the middle foot region of the hem. Can be.

In the present invention, an elastic material having a soft restoring force may be installed on the inner surface of the thinly formed portion of the sole, particularly the portion corresponding to the metatarsal head. Elastic materials can be made of elastic rubber, E.V.A (Ethylene Vinyl Acetate) foam, polyurethane resin, etc., so that they can be more easily contracted than the surroundings and can be wrapped around the metatarsal head. In addition, the magnetic shape may be made of a material capable of memory. Therefore, when the part corresponding to the metatarsal head is pressurized, this part is supported by the elastic material, so that the pressure may be dispersed throughout the periphery where the elastic material is installed rather than a specific point around the metatarsal head, and also may mitigate the impact. Can be.

In the present invention, the attachment portion may be made of a strong material to have durability, in this case may have a deep bone in the width direction of the foot to flex the bending of the metatarsal bone. That is, since the bone portion thickness is thin at the heel lifting stage with a large number of bones formed in the left and right direction, it is easily bent so that the portion corresponding to the midfoot as a whole shoe is more likely to be bent than other portions even when the sole is thicker. It is preferable.

Meanwhile, in the present invention, the metatarsal bar is further provided in the rear portion of the metatarsal portion in the foot width direction, and the rear portion of the metatarsal portion may be formed thicker than the anterior region of the metatarsal portion. In this case, while the metatasal bar is seated in a seating groove formed in a part of the upper surface of the appendage, the upper surface of the metatasal bar protrudes upwardly from the upper surface of the sole of the surrounding shoe in a portion where the metatasal bar is installed, or is flat with the upper surface of the sole. State can be achieved.

The shoe of the present invention is characterized by being manufactured using the above shoe sole.

According to the present invention, it is possible to increase the ease of walking by allowing the heel to be lifted sufficiently easily in the third step of the four-step walk, and at the same time can increase the durability of the metatarsal portion under high pressure.

In addition, according to the present invention, the present invention can increase the stability of the left and right balance of the foot and the distribution of the force is made.

The present invention can ultimately make the form of the foot forming the four steps of walking at the time of walking more naturally to improve the efficiency of walking and prevent the pathology from walking.

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

1 is a bottom view showing a shoe sole according to an embodiment of the present invention.

Anatomically, the foot is divided into three parts, the forefoot, the midfoot and the forefoot, by the chopart's joint and the Lisfranc's joint. However, the shoe sole is divided into the toe part and the metatarsal bone by the metatarsal joint (MP joint), and finally, the posterior foot 140, the midfoot 130, and the metatarsal foot ( 120), it is convenient to distinguish the four parts of the toe part 110 of the forefoot.

In the present embodiment, the sole is divided into four parts from the front to the rear simply by a line perpendicular to the length axis of the foot. Shoe sole is thinner than other portions of the forefoot portion of the foot corresponding to the metatarsal bone 120. Such thinly formed portions include the case of removing the portions, usually or lately, that are thinly formed by the mold in the first step of forming the sole. The heel 141 is provided in the rear part.

In the sole body, a very thin portion formed in the metatarsal bone 120 is provided with an additional portion 150. The additional part 150 is installed by attaching a separate component mainly to the main body with an adhesive. The additional part is usually made of a material different from the main body. That is, the attachment part can be configured differently from the main body in terms of material and shape. It is preferable that the appendage part is made of a tough material so that the metatarsal part has a part where pressure is concentrated in the three steps of walking, so that it is not easily worn despite the pressure. However, in order to make it easier to lift the heel, which is the third step in the four-step walk, the bottom part of the ridge is perpendicular to the length axis of the foot so that it can bend easily without applying much force compared to the sole body (in the left and right width directions of the foot) The valley 153 is formed. Therefore, when the heel is lifted in step 3 of the four-step walking, the ridge is bent convexly downward in accordance with the shape of the plantar flexion of the foot. Allow the bend to bend.

Figure 2 is a bottom view showing the sole of a shoe according to another embodiment of the present invention.

3 is a cross-sectional view showing a longitudinal cross section cut in a plane parallel to the longitudinal axis of the foot with respect to the sole of the shoe shown in the embodiment of FIG.

Referring to Figures 2 and 3, in this embodiment, the sole is formed of a main body 90 that can be divided into two layers in the thickness direction (up and down direction) as shown in FIG. (Here, the main body of the sole is to be formed in two layers, but the two-layer structure shown may be composed of the sole and the midsole or the sole and the insole.) The upper layer is a cushioning material or elastic material near the metatarsal head of the metatarsal bone. ) Is usually installed. As the elastic material 60, rubber, E.V.A (Ethylene Vinyl Acetate) foam, polyurethane resin, or the like may be used.

Similarly to the embodiment of FIG. 1, the lower layer has a portion formed very thinly in the metatarsal bone, and the thin portion is provided with an additional portion 50. Addition portion 50 is attached to the main body 90, a separate component is mainly installed by the adhesive.

When the additional portion 50 is cut in the longitudinal direction along the length axis of the foot such as AA ′ of FIG. 2, the rear portion has a thicker shape than the front portion, and the thick portion is maintained until the end portion is near. The approximate cross section has a downwardly convex shape similar to the streamline represented by the cut plane of the plane wing. In this respect, the ridge is a forefoot rocker with a curved bottom of the forefoot metatarsal bone.

In the present embodiment, the attachment part 50 is formed to have an outer side longer than the inner side when viewed in the plane as shown in FIG. 2. When divided into four parts, the forefoot toe, forefoot, metatarsal, and forefoot, the outer rear end 51, which is a part of the dorsum 50, is extended from the metatarsal bone 20 to the front of the midfoot 30. do.

On the other hand, the rear foot 40 to which the heel belongs is provided with a heel. The curved medial front has extensions 41 that extend or protrude to a portion of the midfoot. This type of bend, known as Thomas hill, allows the foot to become out of shape after the heel touches the ground in the first of four steps of walking. That is, when the sole of the shoe touches the bottom surface, the inner side of the Thomas Hill bent extends further forward than the outside to form the extension part 41, so the foot naturally shifts to the second step of the foot contact after the heel touches. In the part 30, the foot is inclined to the outer side without the bend to achieve a state of regression naturally.

And, at the rear end of the foot 40, a wedge-shaped buffer material 80 is interposed between the heel 70 and the sole body 90 as shown in FIG. This type of cushioning material acts to alleviate the impact on the foot when the heel of the foot, which forms foot flexion in the first step of the walking, first touches the ground. However, the cushioning material is not provided over the entire heel 70, but is formed only at the rear end (for example, a part protruding into the medial side of the calcaneus of the foot or 1 cm after the back of the ankle bone). This type of shock absorbing material 80, the buffer material 80 formed over the entire heel 70 increases the left and right fluidity of the foot in the landing step, the stability is lowered, thereby acting to prevent the accidental folding of the foot side.

Hereinafter, look at the action taken when walking in a shoe having a shoe sole having a structure as shown in FIG. 2 and FIG.

First, when looking at the natural walking pattern by bare feet, it is known that when walking bare feet, the foot is moved in a flapping manner from the outside to reduce the energy consumption during walking, thereby allowing walking for a long time. In flapping walks, the lateral edge of the foot is grounded first, the entire sole of the foot is grounded, the heel is separated from the ground, the toe portion is loaded with weight, and the toe portion kicks the ground. In other words, the foot is in the inner part (回內; the outer part of the foot is lifted up to the inside of the body) until the entire foot is grounded after the heel contacts the ground. And then the movement from the inside to the outside until the toe part kicks the ground.

However, in the conventional general shoe sole, the bottom surface corresponds to the horizontal surface, and when the foot transitions from the heel ground to the sole ground, the entire sole of the foot is grounded without passing through the outer edge, so that the outside of the foot It is easy to get out of the natural barefoot walking, increase the fatigue of the foot and reduce the walking efficiency.

In the case of using the shoe sole of the present embodiment, in the first step of walking, the heel touches the ground while the foot is in the shape of foot flexion. At the rear end of the rear foot 40, which is a heel portion, the shock absorbing material 80 is installed in a wedge shape to alleviate the impact of the landing step.

Then, in the second stage of walking, the foot is changed from plantar flexion to ankle plantar flexion, and the entire foot touches the ground. At this time, the sole of the shoe is not simply a flat state, the rear part 40 has a heel 70, in particular, the heel 70 is Thomas heel heel and the inner side is further extended 1cm to 1.5cm toward the front. Therefore, in the transitional foot where the entire foot touches the ground, the sole is thick in the inner side and the outer sole is thin in the middle foot due to the heel of Thomas. Therefore, the foot is inclined to the outside while the outside of the foot is grounded, and the outside is in a state where the inside of the sole is lifted up and rotated out of the body.

However, it is not desirable that the out-of-state state becomes too deep for the person to walk forward without turning the body outward. The deepening of the outlying state can also be a burden on the plantar muscles, which inhibits the excessive fall of the medial arch height (ARCH) at the time of transition to the outlying state. Therefore, in the present embodiment, when the foot reaching the bottom after the out-of-state state reaches the front end of the metatarsal part 30 or the metatarsal bone 20 of the forefoot part, the back part 50 is thick and the outside of the back part 50 is out of the sole. Since it is located further rearward, the foot is initially inclined toward the thinner inner sole by the effect of thickening the sole of the rear end portion 51 of the hem 50, and is naturally switched from the outer state to the inner state.

Subsequently, in the third step of walking as shown in FIG. 4, the weight is concentrated on the metatarsal part of the sole, especially the metatarsal head, while the heel is lifted, and the angle between the metatarsal bone and the stunned bone of the toe connected thereto is increased. At this time, the sole of the metatarsal is a thin state in which the sole is hard to bend and is partially thin, and instead, there is a valley 53 of the protruding part that is advantageous to bend, so that the angle between the metatarsal and the femur is raised while lifting the heel. In order to increase the resistance of the shoe is reduced compared to the conventional state.

In addition, the metatarsal head portion is provided with a soft elastic material 60 for dispersing and alleviating the pressure applied to the metatarsal head upwards (upper side) facing the soles while a part of the sole is removed. This elastic body allows the metatarsal head to move further down the heel lifting phase, resulting in greater angles between the stunned and metatarsal bones, and easier plantar flexion for the next step, which will help increase walking efficiency. Can be.

Subsequently, in the fourth step of walking, the forefoot pushing step forms a small arch of the toe foot, and in the third step, the toe is pushed back to the ground while the angled bones and the fractured bones are stretched to each other. As you prepare for the transition to step 1, your feet will form a foot flexion and your feet will fall off the ground.

Because plantar flexion is intensified, the elasticity of the muscles accumulated in the foot is used to push the ground to the forefoot more efficiently. In addition, the elastic energy accumulated in the compressed elastic body acts to restore the force of the foot by pushing up the metatarsal bone so that the toe pushes the ground so that it has an easy foot shape to push to the forefoot considering the principle of the lever. It is easy for the foot to form foot flexion to the first stage, which is the next stage of walking.

At this time, since the step in the state in the third step in the fourth step is mainly made the action of kicking the ground on the inner side of the foot (thumb toe), according to this action is the form that is converted to the outside in the meeting of the foot.

In this four-step walking process, in the present embodiment, the process from landing to kicking is converted from the outside to the inside of the meeting from the outside to the outside, similar to the natural walking of bare feet. However, in the present embodiment, since the transition from the inner to outer and the outer to inner part is made by the structure of the sole of the shoe, the burden can be reduced compared to when the foot is switched by itself, and in particular, the foot muscle is weakened. Users have the advantage of reducing the burden on the foot when walking.

5 and 6 are bottom and front views of a shoe sole showing still another embodiment of the present invention.

Although this embodiment is not shown, it is assumed that a high heel with a narrow right and left width such as a women's high heel heel is attached to the rear foot. When the left and right width of the heel is 3 cm or less, and the height is 5 cm or more, a completely different action from the Thomas heel heel as in the embodiment of FIG. 2 occurs in walking. In this case, what should be considered first is the safe landing of the foot in walking, rather than out of and out of the state. The narrower and higher the heel, the more the ankle is not stabilized left and right, so the ankle sprains (folds). And, even if you do not actually sprain the ankle, the shoe wearer is very uncomfortable to balance left and right.

In this situation, when installing the foot portion 250 as in the present embodiment in the metatarsal portion 20 of the shoe sole 290 to be connected to the heel, the back portion 250 is extended to the rear, that is, the midfoot portion, When the protrusions (stabilization columns: 255,257) protruding downward toward the ground on the left and right sides of the extended portion are installed, the protrusions reach the ground before the proximal bone 20 and serve to advance the landing of the soles in time. And it can play a role of balancing left and right like Thomas Hill heel.

Therefore, the present embodiment can serve to maintain the left and right width balance of the foot landing in women's shoes, and prevents foot fatigue and ankle sprain.

7 is a front view showing another embodiment of the present invention.

This embodiment is formed of a main body 390 that can be divided into two layers in the thickness direction in a form similar to that of FIG. In the upper layer, a cushioning material or an elastic material 360 is generally installed near the metatarsal head of the metatarsal bone. In the lower layer, the metatarsal portion is formed very thinly in the entire length, and an additional portion 350 is installed in the thinly formed portion. The mounting portion 350 has a mounting groove 358 formed on the upper surface of the rear portion in the widthwise direction of the foot, and a metatarsal bar 359 corresponding to the size of the mounting groove 358 is inserted therein. The metatarsal bar can be formed thicker than the rear portion of the back portion as shown in FIG. 3, which serves to press the sole of the foot in the latter half of the metatarsal bone while walking. This metatarsal bar relaxes the muscles of the short and long muscles, which can be stretched, and the metatarsal bar can act to induce the correct pedestrian and posture. In this embodiment, it is possible to prevent the hassle of having to install a separate shoe parts in the form of insoles, such as insoles by directly installing the metatarsal bar that can achieve such effects.

FIG. 8 is a front view showing a shoe sole provided with a metata sal bar of a slightly different form from FIG.

In the embodiment of Fig. 8, as in the embodiment of Fig. 7, the mounting portion 450 is installed on the sole body 490 having a single layer, and the mounting groove 458 is formed in the mounting groove 458 formed on the upper surface of the mounting portion. It was installed by inserting a metatarsal bar 459 thicker than the depth and protruding convexly from the top. Where the metatarsal bar is installed, the sole is perforated and the upper surface of the metathasal bar is raised more than the upper surface of the surrounding sole consisting of the body of the sole. Therefore, the portion raised directly under the metatarsal bone of the foot can be pressed to relax the tension muscles of the calf portion.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

1 is a bottom view showing a shoe sole according to an embodiment of the present invention;

Figure 2 is a bottom view showing a shoe sole according to another embodiment of the present invention,

3 is a cross-sectional view showing a longitudinal cross section of the shoe sole shown in the embodiment of FIG. 2;

4 is an explanatory diagram for explaining a third step of walking in walking using the shoe of the present invention;

5 and 6 is a bottom view and a cross-sectional view of a shoe sole showing another embodiment of the present invention,

Figure 7 is a shoe sole cross-sectional view showing an embodiment of the present invention, the metatarsal bar is installed,

8 is a cross-sectional view of a shoe sole showing another embodiment of the present invention in which a metata sal bar is installed.

Claims

Shoe sole, characterized in that the body formed in the portion corresponding to the metatarsal portion of the foot thinner than the other portion, and an additional portion separate from the main body in the portion corresponding to the metatarsal portion.

The method of claim 1,

The outer portion of the foot portion is formed longer than the inner portion of the foot portion is extended to the midfoot region area that is more rearward than the metatarsal portion, and the rear portion of the foot portion is more than the front portion when viewed in the state of cutting the longitudinal axis of the foot Shoe sole, characterized in that formed thick.

The method according to claim 1 or 2,

Heel is formed in the rear foot portion corresponding to the heel, the bent inner shoe is characterized in that consisting of the Thomas heel (Thomas heel) protruding more forward than the outside.

The method of claim 1,

The pad portion extends to the midfoot region that is more rearward than the metatarsal bones,

As seen from the longitudinal section cut along the longitudinal axis of the foot, the rear portion of the back portion is formed thicker than the front portion,

The rear foot corresponding to the heel has a heel having an inner and outer width of 3 cm or less in contact with the ground, and the protruding portion (stabilizing column) protruding downward in the inner and outer portions is formed at the portion where the pad portion extends to the middle foot region. Shoe sole, characterized in that.

The method according to any one of claims 1, 2, and 4,

The sole of the upper surface of the thinly formed portion of the sole corresponding to the metatarsal head, the shoe sole, characterized in that the elastic material is installed softer and stronger than the sole.

The method according to claim 1 or 2,

Heel is formed in the rear portion corresponding to the heel,

Shoe heel, characterized in that the luxury heel (SACH heel) is provided in the middle of the thickness of the elastic portion is wedge-shaped in the rear end.

The method according to any one of claims 1, 2, and 4,

The metatarsal bar is further provided in the rear portion of the metatarsal bone and is installed in the widthwise direction of the foot at an upper side thereof.

The back portion of the shoe sole, characterized in that the rear region of the metatarsal bone portion is formed thicker than the front region of the metatarsal bone.

The method of claim 7, wherein

The metatarsal bar is seated in a seating groove formed in a part of the upper surface of the pad portion, and the upper surface of the metatarsal bar protrudes upwardly from the upper surface of the shoe sole in a portion where the metatarsal bar is installed, or is flat with the upper surface of the pad portion. Shoe sole characterized by achieving a state.

Shoes, characterized in that formed by the sole of the shoe of any one of claims 1 to 8.