CN111093415A

CN111093415A - Shoe outsole

Info

Publication number: CN111093415A
Application number: CN201880059843.5A
Authority: CN
Inventors: 安泰焄; 李范镐
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-19
Filing date: 2018-09-13
Publication date: 2020-05-01
Also published as: JP2020534126A; US20200260818A1; WO2019059584A1; KR101898076B1

Abstract

The present invention relates to an outsole for a shoe, which is provided with a propulsion enhancing part corresponding to a depressed part of a person wearing the shoe between a front end part of a sole corresponding part and a toe corresponding part to increase a propulsion, to tilt the toe corresponding part in a forward direction, to tilt a heel corresponding part in a backward direction, to play a role of buffering, and to assist a stepping action of the person wearing the shoe, to realize a light walking and running, to reduce a physical strength consumption of the person wearing the shoe, to prevent the foot of the person wearing the shoe from being squeezed with respect to the shoe during the walking and running, to prevent a toenail of the person wearing the shoe from being injured in the forward direction, and to further include a rotation acting part protruding above along a central line passing through left and right intermediate parts of the sole corresponding part and the heel corresponding part, to maintain a balance of the person wearing the shoe, to prevent an ankle from being injured, to prevent a loss of a propulsion, to realize a stable walking and running, and to provide a plurality of buffering acting parts at the sole corresponding part and the heel corresponding part, thereby reducing the impact transmitted to the person wearing the shoe.

Description

Shoe outsole

Technical Field

The present invention relates to a shoe including an outsole and an insole or a shoe including an outsole, an insole and a midsole, and more particularly, to an outsole of a shoe, which enables a force of a wearer to be sufficiently transmitted to the ground through the shoe without slipping, to increase a propulsive force, to increase walking and running speeds, to further increase the propulsive force by generating a propulsive force not only by a force applied to a big toe portion but also by forces applied to two, three, four and small toe portions, to repeat downward elastic deformation and upward elastic restoration processes of a toe corresponding portion and a heel corresponding portion generated by a force applied by the weight of the wearer, to perform a buffering action, to thereby obtain a buffering effect by itself without providing a separate buffering means, possess a plurality of cushioning effect portions at sole corresponding part and heel corresponding part, thereby obtain buffering effect by oneself, when the power of the people of wearing shoes is partial to left side or right side, prevent that the foot from sliding to right side or left side, prevent that the people of wearing shoes from falling or leading to the ankle injury because of losing balance, can not lose propulsive force, thereby can realize stable walking and running, make the focus partial to the front end of outsole, thereby the time of touchdown when running, the front end of help outsole slopes down to ground, thereby effectively realize quick running.

Background

The most basic methods of movement for humans are walking (Gait) and Running (Running).

Human walking or running means the mechanical movement of the center of gravity of a human. In other words, in the human walking, the left and right legs are alternately stepped forward, and the weight of the human is sequentially moved to the front leg.

When one leg is observed during walking or running, the flexor group and the extensor group move in a competitive manner, the left and right legs repeat the same movement, and the upper and lower limbs move back and forth in opposite directions, thereby realizing a gentle and effective walking.

The human foot includes a sole 10, a big toe 21, a second toe 22, a third toe 23, a fourth toe 24, and a little toe 25 having depressions 31, 32, 33, 34, and 35 between the front end of the sole 10, and a heel 40 located at the rear half of the sole 10.

One cycle of walking refers to the beginning of the contact of the heel of one foot with the ground, the moment after walking off the ground until the contact with the ground is resumed, and is subdivided into a "standing Phase" (please refer to fig. 1) in which the foot contacts the ground, and a "swinging Phase" (please refer to fig. 2) in which the foot leaves the ground and advances the body.

The "standing phase" accounts for about 60% of a cycle, while the "swinging phase" accounts for about 40% of a cycle.

The "standing phase" is subdivided into "Heel Strike" (Heel Strike) "," Foot Flat) "," Mid-standing (Mid Stance) "," Heel Off "(Heel Off)" and "Toe Off" (Toe Off) "(see fig. 1).

"heel strike" is the time that the heel of the foot touches the ground. At this time, as shown by the black-marked portion in the first drawing from the left of fig. 3, the force applied by the person wearing the shoe is concentrated on the heel 40 portion.

"ball strike" is the time after heel 40 strikes the foot and ball 10 strikes the ground. At this time, as shown by the black-colored portion in the second drawing from the left of fig. 3, the force applied by the person wearing the shoe is distributed over the heel 40 and the sole 10 portion.

"mid-stance" is the time after the foot sole 10 lands on the ground when the center of gravity passes through the center of the foot sole 10. At this time, as shown by the black-colored portions in the third drawing from the left in fig. 3, the force applied by the person wearing the shoe is distributed to the heel 40, the sole 10, and the toes 21, 22, 23, 24, 25.

"heel off" is the time after mid-stance when the heel 40 leaves the ground. At this time, as shown by the black-colored portions in the fourth drawing from the left in fig. 3, the force applied by the person wearing the shoe is distributed to the front portion of the sole 10 and the toe portions 21, 22, 23, 24, 25.

"toe-off" is the time the toes 21, 22, 23, 24, 25 leave from the ground. At this time, as shown by the black-colored portion in the fifth drawing from the left of fig. 3, the force applied by the person wearing the shoe is distributed to the front portion on the big toe 21 side of the sole 10 and the big toe 21 portion.

Here, "heel strike" and "ball strike" and "mid-stance" may be regarded as corresponding to the preparation time for obtaining the propulsive force, and "heel lift" and "toe lift" may be regarded as corresponding to the time for generating the propulsive force.

In particular, the "toe-off" time is an important time for generating a propulsive force because the "toe-off" time performs a backward pushing action with toes, that is, a kickback action (kiskingmotion).

The "swing phase" is subdivided into "follow-up", "forward swing", and "take foot" (see fig. 2).

In addition, the running cycle is similar to the walking cycle, the "stance phase" is subdivided into "landing", "mid-stance" and "pushing", and the "Swing phase" is subdivided into "(Follow Through)", "Forward Swing (Forward Swing)" and "foot Swing".

The difference between walking and running is that there is a "two-foot landing Phase" in which both feet land during walking, but there is a "Flight Phase" in which both feet leave the ground during running.

In the running period, the "standing phase" is longer than the "soaring phase" during jogging or slow running such as marathon, but the "standing phase" is shorter as the running speed increases such as running one hundred meters.

In addition, in jogging, as in walking, the heel touches the ground first and the toe touches the ground later, but in jogging, the heel and the forefoot touch the ground almost simultaneously before toe-off, or the forefoot touches the ground at the beginning and the ball of the foot touches down until toe-off.

In very fast running, only the forefoot (the front end and toes of the ball) lands from "landing" to "pushing".

In addition, people are said to wear shoes from about twenty million years ago, and thereafter, shoes having various shapes and functions are continuously developed.

The kinds of shoes are classified according to shapes, materials, uses, manufacturing methods, and the most basic ones are classified into shoes in the form of leather shoes or sports shoes including soles and uppers and shoes in the form of slippers including soles and bands.

The sole is mostly composed of an Outsole (Outsole), a Midsole (Midsole), and an Insole (instole), but may be composed of only an Outsole and an Insole.

The outsole is a part in contact with the ground, and needs a buffering function, lightness and wear resistance because of being directly impacted from the ground, and the outsole is made of natural rubber, synthetic rubber, foamed vulcanized rubber, foamed EVA, polyurethane and the like.

The midsole is attached to the upper part of the outsole and needs the anti-twisting function and the buffering function of the shoe, and the midsole is made of EVA sponge, Phyton, polyurethane and the like.

The insole is attached to the upper surface of the midsole and is in contact with the sole of the foot, and needs a sole protection function, and the insole is made of latex foam, EVA sponge, polyurethane or the like.

Since the conventional outsole has a toe corresponding portion formed in a plane, there is a problem in that, when a kick-back Motion (kick Motion) of pushing backward with toes is completed at a toe-off time, a sliding Motion is generated between the toes and the toe corresponding portion, so that a propulsive force of a person wearing the shoe is reduced, thereby wasting physical force.

As shown in fig. 3, although the force applied by the person wearing the shoe is concentrated on the big toe side at the toe-off time, the force is applied not only to the big toe side but also to the second, third, fourth and small toes, but since the upper surface of the toe corresponding portion of the outsole of the related art is formed in a flat surface, the force applied to the big toe has a strong contact pressure with the toe corresponding portion, but the force applied to the remaining second, third, fourth and small toes has a weak or almost no contact pressure with the toe corresponding portion.

Therefore, although the force applied to the big toe is used to generate the propulsive force, the forces applied to the second, third, fourth and little toes cannot be used to generate the propulsive force.

Finally, only the force applied to the big toe, which is a part of the force applied by the person wearing the shoe, is used to generate the propulsive force, and the forces applied to the two, three, four and small toes are directly lost, so that the propulsive force is reduced compared to the applied force, and there is a problem that the physical force is wasted.

In addition, when the direction is rapidly changed during running on a curved portion of the track or other ball games, force is applied to the inner side or the outer side of the foot, and at this time, only the inner side edge or the outer side edge of the foot is strongly attached to the shoe, and the rest of the foot is in a separated state in the shoe, so that lateral sliding occurs, and finally, not only the propulsive force is reduced, but also the foot and the ankle of the person wearing the shoe may be injured.

In particular, during the rapid direction change in a track or other ball games, the little toe side is greatly compressed and the little toe and the corresponding part of the toe slide, so that not only the person wearing the shoes may lose balance and fall, but also the little toe part may be seriously injured.

In general, a hard outsole is preferable for increasing the propulsive force of the shoe, but a soft outsole is preferable for the cushioning effect.

Therefore, in the prior art shoes, it is considered to use a hard outsole in combination with another cushioning means made of a cushioning rubber or a tubular member.

However, the above-described cushioning means can obtain a cushioning effect, but reduces the effect of transmitting the force of the person wearing the shoe to the ground.

Finally, the prior art shoes have limitations in terms of the function of simultaneously transmitting the force of the person wearing the shoe and the function of cushioning.

In addition to rapid running consisting of a standing phase including landing, mid-standing and propulsion and a swing phase including follow-up, forward swing and stepping, at the landing time when the person wearing the shoe steps the toes will contact the ground first, but the outsole of the prior art cannot help the landing action because the center of gravity is located at the center.

Thus, little effect is achieved in terms of stability and propulsion for rapid running.

"shoe with anti-slip part" (hereinafter referred to as "prior art 1") disclosed in prior art korean laid-open patent No. 10-2011-0040653 (2011.04.20) discloses a technology for preventing slip between a sole and a sole by providing an anti-slip part protruding upward on a sole surface in correspondence to a recessed portion where toes and the sole are connected.

The prior art 1 described above is configured such that the anti-slip part is integrally formed on the sole or is provided so as to be slidable back and forth, but the anti-slip part is not completely adhered to the anti-slip part due to a large difference in curvature between the anti-slip part and the recessed part between the toes and the sole, and the anti-slip part is repeatedly contacted and separated, so that pain is caused by the anti-slip part during walking and running. In addition, the proximal phalanx located inside the depression between the toe and the ball of the foot is compressed, causing more pain.

Further, prior art 1 has a problem that the antiskid portion moves in the front-rear direction between the toes and the sole 10, and a slip phenomenon occurs during walking and running, resulting in a loss of propulsive force.

Further, the prior art 1 has a problem that the toes contact the upper surface formed in a flat surface, and sliding occurs between the toes and the upper surface of the sole during walking and running, resulting in a loss of propulsive force.

Further, the aforementioned prior art 1 has a problem that the toes of the person wearing the shoe are in contact with the upper surface formed of a flat surface, and the foot of the person wearing the shoe is pushed forward during walking or running, thereby injuring the toenails of the person wearing the shoe.

Further, korean registered utility model No. 20-0395056 (2005.09.01) (referred to as "prior art 2" hereinafter) discloses a technique for preventing various musculoskeletal diseases of a user by forming a first shock absorbing portion provided in a region including a position in contact with a tip portion of a metatarsal and a position in contact with a big toe and a second shock absorbing portion provided in a region including a position in contact with a heel under an insole to absorb and disperse shock applied to a foot of the user and reduce load transmitted to a lumbar region and a lower limb.

However, in the prior art 2, since the first and second shock absorbing portions protrude from the upper surface of the insole, although shock to the front portion of the sole corresponding to the metatarsal bone and the heel portion corresponding to the calcaneus bone can be alleviated, shock to the sole, toes, and the like other than the front portion of the sole and the heel portion cannot be alleviated to reduce the shock alleviating effect, and the effect is reduced because the entire toes, the sole, and the heel have portions that do not come off in contact with the upper surface of the insole.

Further, the prior art 2 cannot solve the same problem as the prior art 1 because a sliding phenomenon occurs between the foot of the person wearing the shoe and the insole during walking and running, and a phenomenon occurs in which the foot of the person wearing the shoe is pushed forward with respect to the shoe.

Disclosure of Invention

Problems to be solved by the invention

Accordingly, an object of the present invention is to provide an outsole for a shoe, which can increase a propulsive force by sufficiently transmitting a force of a person wearing the shoe to the ground through the shoe without slipping, thereby increasing a walking or running speed.

Another object of the present invention is to provide an outsole for a shoe, which can generate a propulsive force by applying a force to not only a big toe portion but also two, three, four and small toe portions of a wearer, thereby further improving the propulsive force.

Another object of the present invention is to provide an outsole of a shoe, in which a toe corresponding part is formed to be inclined in a forward direction and a heel corresponding part is formed to be inclined in a rearward direction, so that a downward elastic deformation and an upward elastic restoration process of the toe corresponding part and the heel corresponding part, which are generated by a force applied by a weight of a wearer, are repeated to perform a cushioning effect, thereby obtaining a cushioning effect by itself without providing a separate cushioning means.

Another object of the present invention is to provide an outsole for a shoe, which has a plurality of cushioning action parts at a ball part corresponding portion and a heel part corresponding portion, and which can provide a self-cushioning effect.

Another object of the present invention is to provide an outsole of a shoe, which can prevent a foot from sliding to the right or left side when a force of a person wearing the shoe is biased to the left or right side, prevent the person wearing the shoe from falling down due to unbalance or from being injured at the ankle, and prevent the person from losing a propulsive force, thereby enabling stable walking and running.

Another object of the present invention is to provide an outsole for footwear which biases the center of gravity toward the outer front end portion, thereby helping the front end portion of the outsole to be inclined downward toward the ground at the time of landing during running, thereby effectively achieving rapid running.

Means for solving the problems

In order to achieve the above object, the present invention provides an outsole for a shoe, including an outsole and an insole, or a shoe including an outsole, an insole, and a midsole, comprising: a sole corresponding portion corresponding to a sole of a person wearing the shoe; a toe corresponding portion formed at a front end portion of the sole corresponding portion so as to correspond to toes of a person wearing the shoe; a heel corresponding part formed at the rear end of the sole corresponding part corresponding to the heel of the person wearing the shoe; a propulsive force increasing part formed in a shape protruding above a concave part corresponding to a person wearing the shoe between a front end part of the sole corresponding part and a rear end part of the toe corresponding part; in the propulsion-force increasing portion, a side of a portion corresponding to the big toe depression is low, and a side of a portion corresponding to the small toe depression is high.

Preferably, the propulsion-force increasing portion is formed in a relief shape having an upper surface protruding and a lower surface recessed.

Preferably, the toe corresponding part is formed to be inclined in a forward direction.

Preferably, the heel counter is formed to be inclined in a rear direction.

Preferably, the sole corresponding part and the heel corresponding part further include a rotation acting part formed by protruding from the upper surface along a center line passing through the middle part in the left-right direction of the sole corresponding part and the heel corresponding part.

Preferably, the rotation action portion is formed in a relief shape having a convex upper surface and a concave lower surface.

Preferably, the sole corresponding part and the heel corresponding part further comprise a plurality of buffer action parts formed by protruding from the upper surface and sinking from the lower surface.

Effects of the invention

According to the outsole of the shoe of the present invention, the propulsive force increasing unit is provided between the sole corresponding unit and the toe corresponding unit, so that the force of the person wearing the shoe is sufficiently transmitted to the ground through the shoe without slipping, thereby increasing the propulsive force.

According to the outsole of the shoe of the present invention, the propulsive force reinforcing portion provided between the sole corresponding portion and the toe corresponding portion can generate a propulsive force not only by a force applied to the big toe portion but also by a force applied to the second, third, fourth, and small toe portions among the force applied to the shoe, thereby further improving the propulsive force.

According to the outsole of the shoe of the present invention, the toe corresponding portion is formed to be inclined in a forward direction, and the heel corresponding portion is formed to be inclined in a backward direction, so that the processes of downward elastic deformation and upward elastic restoration of the toe corresponding portion and the heel corresponding portion, which are generated by a force applied by a wearer of the shoe, are repeated, thereby performing a cushioning effect, and thus, the outsole of the shoe, which can obtain a cushioning effect by itself without having an additional cushioning means, can be provided.

According to the outsole of the shoe of the present invention, the plurality of cushioning action portions provided at the sole corresponding portion repeat the downward elastic deformation and upward elastic recovery process in accordance with the force applied during walking and running, and thereby self-obtain the cushioning action.

According to the outsole of the shoe of the present invention, the center of gravity is biased toward the front end of the ball corresponding portion and the side of the toe corresponding portion, so that the front end of the ball corresponding portion and the toe corresponding portion are assisted to be inclined downward toward the ground at the time of landing during running, thereby effectively realizing the outsole of the shoe for rapid running.

Drawings

FIG. 1 is a schematic diagram of a stance phase in a walking cycle;

FIG. 2 is a schematic diagram of the swing phase during a walking cycle;

FIG. 3 is a front view of a leg and a bottom view of a foot in a stance phase;

FIG. 4 is a side view of the foot;

FIGS. 5 to 11 are views illustrating a preferred embodiment of an outsole of a shoe according to the present invention;

FIG. 5 is an oblique view of an outsole of a shoe according to the invention;

FIG. 6 is a plan view of an outsole of a shoe according to the invention;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;

fig. 8 is a plan view of the toe corresponding part and the propulsive force reinforcing part;

FIG. 9 is a cross-sectional view taken along lines B-B, C-C, D-D, E-E, and F-F of FIG. 8;

FIG. 10 is a plan view of the ball and heel counterparts;

fig. 11 is a sectional view taken along line G-G of fig. 10.

Detailed Description

Hereinafter, an outsole of a shoe according to the present invention will be described in detail according to preferred embodiments illustrated in the accompanying drawings.

The present invention can be applied to a shoe including an outsole and an insole, and a shoe including an outsole, an insole, and a midsole.

In the following description, the five toes are individually described as a big toe 21, a second toe 22, a third toe 23, a fourth toe 24, and a small toe 25, and collectively described as a toe 20, and the five depressed portions formed between the tip end portion of the sole 10 and the toe 20 are individually described as a big toe depressed portion 31, a second toe depressed portion 32, a third toe depressed portion 33, a fourth toe depressed portion 34, and a small toe depressed portion 35, and collectively described as a depressed portion 30.

Fig. 4 to 11 are views illustrating a preferred embodiment of an outsole of a shoe according to the present invention. Fig. 4 to 11 illustrate the outsole for the left foot.

As shown in fig. 4 to 11, the Outsole (OS) according to the present embodiment has an outer peripheral shape corresponding to a planar projection shape of the foot.

The Outsole (OS) includes: a sole corresponding portion 100 formed at an intermediate portion corresponding to the sole 10 of the person wearing the shoe; a toe corresponding part 200 formed at a front end of the sole corresponding part 100 to correspond to the toes 20 of the wearer; a propulsive force reinforcing part 300 formed to protrude between the ball of foot corresponding part 100 and the toe corresponding part 200 corresponding to the depressed part 30 of the person wearing the shoe; and a heel counter 400 formed at a rear end of the sole counter 100 to correspond to the heel 40 of the wearer.

The Outsole (OS) corresponds to the projected area of the foot and has an area sufficient to engage the upper or strap. The edge of the Outsole (OS) is provided with an edge part F protruding upwards.

The sole corresponding part 100 is formed in a curved surface corresponding to the sole 10 of the person wearing the shoe.

The toe corresponding part 200 is formed such that the part corresponding to the big toe 21 is lower and the part corresponding to the small toe 25 is higher in accordance with the shape of the toe 20 of the person wearing the shoe, and the big toe 21, the second toe 22, the third toe 23, the fourth toe 24 and the small toe 25 of the person wearing the shoe are closely attached to the toe corresponding part 200.

Therefore, when walking and running, the big toe 21, the second toe 22, the third toe 23, the fourth toe 24 and the small toe 25 of the person wearing the shoe are all attached to the toe corresponding portion 200 with a uniform force, so that not only the force applied to the portion corresponding to the big toe 21 side of the toe corresponding portion 200 is generated as a propulsive force, but also the forces applied to the portions corresponding to the second toe 22, the third toe 23, the fourth toe 24 and the small toe 25 side are generated as a propulsive force at the "toe-off" time of the walking cycle and the "propulsion" time of the person running, and finally the propulsive force is enhanced, thereby realizing powerful and rapid walking and running and accordingly reducing the physical strength of the person wearing the shoe.

The toe corresponding portion 200 is inclined in the forward direction, and the heel corresponding portion 400 is inclined in the backward direction, so that the elastic deformation in the downward direction is performed to provide a buffer function when a force of the person wearing the shoe is applied during walking or running, and the elastic restoration in the upward direction is performed when the force of the person wearing the shoe is lost, thereby providing a force to lift the foot of the person wearing the shoe, assisting the person wearing the shoe to step, realizing light walking or running, and reducing physical strength consumption of the person wearing the shoe.

In addition, the toe corresponding parts 200 are formed to be inclined in the forward direction, so that the foot of the person wearing the shoes is prevented from being pushed forward with respect to the shoes during walking and running, thereby preventing the toenails of the person wearing the shoes from being injured.

The propulsion force reinforcement part 300 may be formed in a shape of only an upper protrusion, but is preferably formed in a shape of an upper protrusion and a lower recess to reduce the weight of the Outsole (OS).

The propulsive force increasing part 300 is formed in such a manner that the height thereof is lower at a portion corresponding to the big toe depression part 31 and higher at a portion corresponding to the small toe depression part 35 in accordance with the shape of the depression part 30 of the person wearing the shoe, and the width in the front-rear direction is formed in such a manner that the portion corresponding to the big toe depression part 31 is narrower at a portion corresponding to the big toe depression part 31 and the portion corresponding to the small toe depression part 35 is wider at a portion corresponding to the small toe depression part 35, so that the big toe depression part 31, the two toe depression parts 32, the three toe depression parts 33, the four toe depression parts 34, and the small toe depression part 35 of the person wearing the shoe are all closely attached to the propulsive force increasing part 300.

Therefore, in the toe-off time of the walking cycle and the propulsion time of the running cycle, the big toe 21, the second toe 22, the third toe 23, the fourth toe 24 and the small toe 25 of the person wearing the shoes are hung on the propulsion enhancing unit 300, and the person is prevented from sliding backwards, and the propulsion is completely transmitted without loss, thereby enhancing the propulsion, accordingly increasing the walking and running speed and reducing the physical strength consumption of the person wearing the shoes.

Further, since the toe corresponding part 200 closely contacts all of the big toe 21, the second toe 22, the third toe 23, the fourth toe 24 and the small toe 25, and the propulsion increasing part 300 closely contacts all of the big toe concavity 31, the second toe concavity 32, the third toe concavity 33, the fourth toe concavity 34 and the small toe concavity 35, even if a strong force is generated on the small toe 25 side depending on the ground conditions or the walking and running conditions, the small toe 25 closely contacts the toe corresponding part 200 and the small toe concavity 35 closely contacts the propulsion increasing part 300, and the person wearing the shoe does not lose balance and fall down or injure the small toe 25 or the ankle.

The outsole of the shoe according to this embodiment further includes a rotation acting portion 500 protruding from the upper surface along a center line passing through the middle portion in the lateral direction of the ball portion corresponding portion 100 and the heel corresponding portion 400.

The rotation action part 500 may be formed only in a shape of an upper protrusion, but is preferably formed in a relief shape of an upper protrusion and a lower recess to reduce the weight of the Outsole (OS).

The rotation acting part 500 serves to rotate the foot of the person wearing the shoe with respect to the Outsole (OS) when the force is biased to the left or right side with respect to the rotation acting part 500 according to the conditions of the ground or the walking and running conditions at the time of walking and running.

Therefore, the left half or the right half of the sole 10 and the heel 40 of the person wearing the shoe is closely attached to the left half or the right half of the sole corresponding part 100 and the heel corresponding part 400, and the rotation acting part 500 fixes the sole 10 and the heel 40 of the person wearing the shoe to prevent the person from sliding to the right or the left, thereby preventing the person wearing the shoe from falling down due to losing balance or injuring the ankle, and realizing stable walking and running without losing propulsive force.

In addition, in this case, the toes 20 and the depressions 30 can be brought into close contact with the big toe 21 and the second toe 22 and the big toe depression 31 and the second toe depression 32 on the left side or the four toe 24 and the small toe 25 and the four toe depression 34 and the small toe depression 35 on the right side with the left half or the right half of the toe corresponding part 200 and the propulsion enhancing part 300, so that the person wearing the shoe can be prevented from falling down due to losing balance or from being injured on the ankle, and the propulsion can be prevented from being lost, thereby realizing stable walking and running.

According to the outsole of the shoe of the present embodiment, the shapes of the ball 10 and the toes 20, the recesses 30, and the heel 40 of the person wearing the shoe can be scanned three-dimensionally, and the ball corresponding portion 100, the toe corresponding portion 200, the propulsive force reinforcing portion 300, and the heel corresponding portion 400 can be manufactured according to the scanned shapes.

In addition, as shown in the example of the drawings, in the bottom surface of the Outsole (OS) according to the present embodiment, in the case of being used for a soccer shoe, the stud protrusions S may be formed, and concave and convex portions or stud protrusions having various shapes may be formed according to the kind of shoes to be applied.

In addition, the Outsole (OS) according to the present embodiment further includes a plurality of cushioning action portions 610 formed at the ball corresponding portion 100 and a plurality of cushioning action portions 620 formed at the heel corresponding portion 400 (see fig. 10 and 11).

As shown in the drawing, the cushioning action portions 610 formed in the sole corresponding portion 100 are formed in four pairs on the left and right sides of the sole corresponding portion 100, and the cushioning action portions 620 formed in the heel corresponding portion 400 are formed in two pairs on the left and right sides, but may be increased or decreased depending on the size of the shoe, without limitation.

Fig. 11 shows a cross section of the cushioning action portion 610 formed on the tip end portion side of the sole corresponding portion 100, but the remaining

cushioning action portions

610 and 620 may be understood to have a cross sectional shape corresponding thereto.

The

buffer action parts

610 and 620 are formed in a shape in which the upper surface is recessed and the lower surface is protruded.

The

cushioning units

610 and 620 repeat a process of being elastically deformed downward when a force of a person wearing the shoe is applied to the sole corresponding portion 100 and the heel corresponding portion 400 during walking or running and being elastically restored upward when the force of the person wearing the shoe is removed, and thus play a cushioning role to reduce an impact on the person wearing the shoe.

In addition, in the case of rapid running, the heel 40 does not first contact the ground, but the front end portion of the ball corresponding portion 100 and the toe corresponding portion 200 and the propulsive force increasing portion 300 first contact the ground, so that the person wearing the shoe must apply strength to the ankle to tilt the foot forward and downward, thereby consuming unnecessary force.

According to the Outsole (OS) of the present embodiment, the center of gravity is shifted toward the tip end of the ball corresponding portion 100 and the toe corresponding portion 200.

Therefore, even when the person wearing the shoe does not put the force on the ankle, the tip end portion of the sole corresponding portion 100, the toe corresponding portion 200, and the propulsive force reinforcing portion 300 are inclined downward, thereby preventing unnecessary force from being consumed during rapid running.

In order to shift the center of gravity of the Outsole (OS) toward the tip end of the sole corresponding portion 100 and the toe corresponding portion 200, the uneven portion or the spike protrusion formed on the bottom surface may be concentrated on the tip end of the sole corresponding portion 100 and the toe corresponding portion 200.

The above-described embodiments are merely examples, and those skilled in the art can make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate the present invention and not to limit the scope of the technical idea of the present invention by these embodiments. But rather should be construed to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. An outsole for a shoe, comprising, in a shoe comprising an outsole and an insole or a shoe comprising an outsole, an insole and a midsole:

a sole corresponding portion corresponding to a sole of a person wearing the shoe;

a toe corresponding portion formed at a front end portion of the sole corresponding portion so as to correspond to toes of a person wearing the shoe;

a heel corresponding part formed at the rear end of the sole corresponding part corresponding to the heel of the person wearing the shoe;

a propulsive force increasing part formed in a shape protruding above a concave part corresponding to a person wearing the shoe between a front end part of the sole corresponding part and a rear end part of the toe corresponding part;

in the propulsion-force increasing portion, a side of a portion corresponding to the big toe depression is low, and a side of a portion corresponding to the small toe depression is high.

2. The outsole of a shoe of claim 1, wherein: the propulsion enhancing part is formed in a relief shape with an upper surface protruding and a lower surface recessed.

3. The outsole of a shoe of claim 1, wherein: the toe corresponding part is formed to be inclined in a forward direction.

4. The outsole of a shoe of claim 1, wherein: the heel corresponding portion is formed to be inclined in a rear direction.

5. The outsole of a shoe of claim 1, wherein: and a rotation acting part formed by protruding on the upper surface along a central line passing through the left and right direction middle parts of the sole corresponding part and the heel corresponding part.

6. The outsole of a shoe of claim 5, wherein: the rotation action part is formed in a relief shape with an upper surface protruding and a lower surface recessed.

7. The outsole of a shoe of claim 1, wherein: the sole corresponding part and the heel corresponding part also comprise a plurality of buffer action parts which are formed by protruding the upper surface and sinking the lower surface.

8. The outsole of a shoe of claim 1, wherein: in the thrust force increasing portion, the width in the front-rear direction is narrower on the side of the portion corresponding to the big toe depression portion and wider on the side of the portion corresponding to the small toe depression portion.