WO2010137769A1

WO2010137769A1 - Rear tunnel protrusion-type outsole for masai walking, having cushion space part

Info

Publication number: WO2010137769A1
Application number: PCT/KR2009/004577
Authority: WO
Inventors: 이창호
Original assignee: Lee Chang Ho
Priority date: 2009-05-27
Filing date: 2009-08-17
Publication date: 2010-12-02

Abstract

The present invention relates to a rear tunnel protrusion-type outsole for Masai walking, having a cushion space part, wherein: an insertion groove is formed inside edge protrusions of both lateral sides in the rear of an upper pad, and upper and lower coupling protrusions of an upper pad of a midsole and upper and lower coupling protrusions of a lower pad of the midsole are strongly coupled through an adhesive while the lower pad is inserted into the insertion groove, thereby vertical cushioning movement being operated at the exact position where the center of lower end portions of upper support protrusions and upper end portions of lower support protrusions is always maintained constant, and the deviation or damage of the center of support protrusions being prevented by strong landing force even if the vertical cushioning movement is continued for a long time when an outsole has landed; a cushion space part of an elliptical shape is formed between the lower end region of the upper support protrusions and the upper end region of the lower support protrusions, and a cushioning and a repulsive power for Masai walking are generated while the lower end region of the upper support protrusions and the upper end region of the lower support protrusions come into contact with each other at the moment of landing of an outsole for Masai walking, thereby increasing cushioning and repulsive power, decreasing impact hardness by half due to the increased cushioning and repulsive power, and increasing a buffering effect due to the increased cushioning and repulsive power.

Description

Shoe sole for rear tunnel projection type Masai walking with cushion space

The present invention relates to a shoe sole for a rear tunnel protrusion type masai walking in which a cushion space is formed, and more specifically, an insertion groove is formed inside both side edges of the rear portion of the upper pad, and an upper and lower coupling jaw is formed at the top and bottom of the insertion groove. The upper and lower coupling jaws are formed on the upper and lower portions of the lower pad so that the upper and lower coupling jaws of the midsole upper pad and the upper and lower coupling jaws of the midsole lower pad are tightly coupled with an adhesive while the lower pad is inserted into the insertion groove. Therefore, the upper and lower parts of the upper support protrusion and the upper part of the lower support protrusion always operate the up and down cushion movement at the correct position in which the center of the support protrusion is kept constant. This prevents the center of the support protrusion from being distorted or damaged even if the up and down cushion movement is performed for a long time. When the lower pad is coupled to the lower portion of the upper pad, an elliptical cushion space portion is formed between the lower portion of the upper support protrusion and the upper portion of the lower support protrusion, and at the moment of landing the upper support protrusion of the shoe sole for masai walking. As the lower part and the upper part of the lower support protrusion are in close contact with each other, a cushion and repulsive force for masa walking are formed, thereby increasing the cushion and repulsive force, reducing the impact hardness due to the increased cushion and repulsive force in half, and increasing the cushion and repulsive force. It relates to a shoe sole for rear tunnel projection type masai walking in which a cushion space portion is formed to increase the cushioning effect.

In general, the movement of the foot on the ground during walking is a three-step process, in which the left and right feet repeat the landing step by the heel, the center moving step from the heel to the heel, and the step of the heel pushing off the ground. In conventional shoes, the shape of the heel is almost perpendicular to the ground, and in the case of shoes, a sharp edge is formed on the heel so that the edge touches the ground first during the landing stage. Because of its shape, the impact at the time of landing is large, and the movement to the center movement stage, which is the next stage of landing, is performed at once, so that a sudden impact force is transmitted to each joint of the leg and body as well as the ankle joint, resulting in poor landing feeling and poor walking. Naturally.

Conventional tunnel protrusion type masai walking shoe sole is not formed with an insertion groove in the upper pad, the insertion groove side edge jaw is not formed on both sides of the insertion groove, and the lower portion of the upper support protrusion and the upper portion of the lower support protrusion. Since there is no oval-shaped cushion space between them, the sole of the shoe is thick and the weight of the shoe is heavy, and it is uncomfortable to wear, and it can maintain unstable and uncomfortable posture. There was a problem.

Conventional tunnel protrusion type masai walking shoe sole has a problem that the lower portion of the upper support protrusion and the upper portion of the lower support protrusion cannot maintain the center of the support protrusion in a constant state, and the cushion movement in the up and down direction at the correct position. There is a problem that does not work, when the landing of the shoe sole has a problem that the center (center) of the support protrusion is broken or broken when the cushion movement in the vertical direction for a long time by a strong landing force.

Conventional tunnel protrusion type masai walking shoe sole is the elliptical form of the cushion space between the lower portion of the upper support protrusion and the upper portion of the lower support protrusion when the lower pad is coupled to the lower portion of the upper pad and the sole of the sole for masai walking Since the lower part of the upper support protrusion and the upper part of the lower support protrusion are always bonded before and after the landing, there is a problem of weak cushioning and repulsive force for masai walking, and the lower part of the upper support protrusion and the upper part of the lower support protrusion are Since the adhesive state is bonded to the cushion and the repulsive force is weak and there is a weak buffer effect.

Conventional through-tuner protrusions for the Masai walking shoe sole has no insertion grooves formed on both sides of the rear edge of the upper pad and the insertion groove side edges are not formed on both sides of the insertion groove. A through tunnel penetrated to the side is formed, and if it is worn for a long time, rain water penetrates between the through tunnel, and when worn, the shoe itself is extremely heavy and uncomfortable, and if it is worn for a long time, a foreign material is inserted between the through tunnel and becomes dirty and dirty.

The upper midsole-type masai walking shoe sole combined with the conventional auxiliary midsole has no insertion groove formed in the upper pad, and no insertion groove side edges are formed on both sides of the insertion groove, and the lower portion and the lower portion of the upper support protrusion. Since there is no oval-shaped cushion space formed between the upper portions of the support protrusion, the sole of the shoe is thick and the weight of the shoe is heavy, and it is inconvenient to wear. There was a problem that a safety accident occurs.

The present invention has been made to improve the above-described problems in the shoe sole, the support protrusion is formed in the midsole, and the tunnel is formed between the support protrusion, the part landing on the ground on the bottom surface of the shoe sole is flat with the ground It is an object of the present invention to provide a rear tunnel protrusion type masai walking shoe sole having a cushion space portion which forms a slip shape and has an effect of having a feeling of walking on sand with bare feet.

The shoe sole of the present invention has a support protrusion formed in the midsole, and a tunnel is formed between the support protrusions so that when the shoe is worn from the heel while the shoe is worn, the support protrusion and the tunnel are expanded and restored in the restored state when the sole is inflated. Because the part landing on the ground forms a flat slip shape with the ground, the impact amount due to the landing of the sole surface of the shoe is relatively reduced, and the support protrusion and the tunnel are contracted in parallel with the ground, resulting in high cushioning efficiency and smooth landing. The midsole, with its supporting protrusions and tunnels, cuts the impact hardness in half and doubles the cushioning effect.

The present invention is the insertion groove is formed in the inner side of both sides of the rear edge of the upper pad and the upper and lower coupling jaw is formed in the upper and lower portions of the insertion groove and the upper and lower coupling jaw is formed in the upper and lower portion of the lower pad inside the insertion groove Since the upper and lower engaging jaws of the midsole upper pad and the upper and lower engaging jaws of the midsole lower pad are tightly coupled with an adhesive with the lower pad inserted into the upper pad, the lower portion of the upper support protrusion and the upper portion of the lower support protrusion are always the center of the support protrusion. The cushion movement in the up and down direction is operated at the exact position where the center is kept constant.In the case of the landing of the shoe sole, the center of the support protrusion is distorted or damaged even if the cushion movement in the up and down direction is progressed for a long time by the strong landing force. Can be prevented, and when the lower pad is coupled to the lower part of the upper pad, the lower portion of the upper support protrusion and the lower support An oval-shaped cushion space is formed between the upper portions of the protrusions, and the cushioning and repulsive force for masa walking are formed by closely contacting the lower portion of the upper support protrusion and the upper portion of the lower support protrusion at the moment of landing of the shoe sole for the masai walking. The cushion and repulsion force are increased by 2 to 4 times or more compared to the conventional masai walking shoe sole where the lower part of the upper support protrusion and the upper part of the lower support protrusion are glued together, and the impact hardness due to the increased cushion and repulsion force is increased. It cuts in half and increases the cushioning effect by the increased cushion and repulsion by 2 to 4 times.

In addition, in the present invention, the support protrusion is formed in the midsole, and the tunnel is formed between the support protrusions, so that the ankle joint and the leg are formed at the bottom surface of the shoe sole while the midsole is compressed to form a flat slip shape with the ground. And smooth and natural walking without causing a sudden impact on each joint of the body, and when the bottom surface of the sole is out of the ground at the departure stage, the support protrusion and the tunnel of the midsole contracted in the previous stage are restored and the repulsive force is generated. Since the foot is pushed in the direction of progression, the walking efficiency is high, light and light walking is possible, and the effect of walking on the sand with bare feet can be obtained.

1 is an exploded perspective view showing a midsole in the sole of the present invention.

Figure 2 is an exploded perspective view showing the midsole in the sole of the present invention.

Figure 3 is an exploded cross-sectional view showing the midsole in the sole of the present invention.

Figure 4 is a cross-sectional view showing a midsole in the sole of the present invention.

Figure 5 is an exploded cross-sectional view showing a state in which the upper pad and the lower pad of the midsole in the shoe sole of the present invention.

Figure 6 is an exploded cross-sectional view showing the upper pad of the midsole in the shoe sole of the present invention.

Figure 7 is an exploded cross-sectional view showing the lower pad of the midsole in the shoe sole of the present invention.

Figure 8 is an exploded cross-sectional view showing a state in which the upper pad and the lower pad of the midsole in the shoe sole of the present invention.

Figure 9 is an exploded cross-sectional view showing a state in which the upper pad and the lower pad of the midsole in the shoe sole of the present invention.

Figure 10 is a cross-sectional view showing the midsole and insole in the sole of the present invention.

Figure 11 is an exploded cross-sectional view showing the midsole and insole in the shoe sole of the present invention.

Figure 12 is an exploded cross-sectional view showing the insole, midsole and outsole in the shoe sole of the present invention.

Figure 13 is a plan view showing the front and rear shape shank built into the shoe sole of the present invention.

Figure 14 is a perspective view of the midsole in the sole of the present invention.

Figure 15 is a side view showing the midsole in the sole of the present invention.

Figure 16 is a rear view showing the midsole in the sole of the present invention.

* Explanation of symbols for main parts of the drawings

10: Insole 20: Midsole Upper Pad

21: insertion groove 22: upper support protrusion

23: upper coupling jaw 23 ': lower coupling jaw

24: Top board 25, 25 ': Insertion groove side edge jaw

29: Inside upper pad foot arch 30: Midsole lower pad

32: lower support protrusion 33: upper coupling jaw

33 ': Lower coupling jaw 34: Habunal

40: outsole 50: front and rear shape shank

52: toe groove 100: oval shaped cushion space

120: semi-elliptic shaped cushion space portion 220: semi-elliptic shaped cushion space portion

The present invention is coupled to the lower part of the upper and consists of insoles, midsoles and outsoles, and in the soles for masai walking in the form of an arc shape convex in the downward direction from the front portion to the rear portion so that it can be masai walking in Insole 10 is coupled to the upper portion of the midsole upper pad (20); It is composed of any material selected from synthetic resin and rubber, and its material hardness (measured by Japan ASKER TYPE C hardness tester: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness tester) is 30 to 70, and it can be used for masai walking. The bottom surface is formed in an arc shape convex downward from the front part to the rear part, and the foot pad inner side 29 part of the upper pad is formed so that the masai walking can be made in close contact with the inner foot of the foot. Is formed in a convex dome shape in the upper direction, the insertion groove 21 is formed in the inner side of both sides of the upper edge of the upper pad (25, 25 ') so that the midsole lower pad 30 can be coupled, Upper and lower coupling jaw (23, 23 ') is formed on the upper and lower portion of the insertion groove 21, 4 to 20 upper support projections 22 are formed in the insertion groove 21, The upper support protrusions 22 are formed between the upper and upper channels 24, and when the lower pad 30 is coupled to the lower portion of the upper pad 20, the lower portion of the upper support protrusion 22 and the lower support protrusion ( 32, the lower portion of the upper support protrusion 22 is supported in the horizontal direction in the form of a semi-elliptic cushion space portion 120 is formed so that the cushion space portion 100 of the elliptical form between the upper portion of the upper support A midsole upper pad 20 having protrusions 22 formed thereon; It is composed of any one material selected from synthetic resin and rubber, and the material hardness (measured by Japan ASKER TYPE C hardness tester: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness tester) is 30 to 70, and the upper pad is inserted. It is formed to be coupled in a state inserted into the groove 21, and the upper and lower coupling jaw (33, 33 ') in the upper and lower portion of the lower pad to be coupled to the upper and lower coupling jaw (23, 23') of the upper pad. ) Is formed, the lower support protrusion 32 is formed in the form corresponding to the upper support protrusion 22 on the upper surface of the lower pad corresponding to the position corresponding to the upper support protrusion 22 of the upper pad, A lower channel 24 is formed between the lower support protrusions 22, and when the lower pad 30 is coupled to the lower portion of the upper pad 20, the lower portion of the upper support protrusion 22 and the lower support protrusions ( Oval form between the upper areas of 32) Midsole having the lower support protrusion 32 is formed in the state in which the upper portion of the lower support protrusion 32 is a semi-elliptic cushion space portion 220 is formed in a horizontal direction so that the cushion space portion 100 of the Lower pad 30; Front and rear shape shank (50) that is embedded in the inside of the midsole upper pad 20 over the portion where the front heel tip is in contact with the front toe end of the midsole upper pad 20; And an outsole 40 coupled to the lower part of the midsole and having an arc shape in which the bottom surface is convex in the downward direction from the front part to the rear part so as to allow masai walking, and the lower part of the upper pad 20. When the lower pad 30 is coupled to the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 is formed in the cushion space portion 100 of the elliptical shape, the landing of the shoe sole for masai walking The sole portion for the rear tunnel protrusion type masai walking formed with a cushion space portion, characterized in that the cushion and the repulsive force for the masai walking is formed while the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 are in close contact with each other. It is about.

The rear tunnel protrusion type shoe sole of the present invention is an outsole coupled to the upper. The shoe sole of the present invention is to manufacture the midsole upper pad 20 and the midsole lower pad 30 separately and combined with an adhesive. In the shoe sole of the present invention, the midsole lower pad 30 is formed in the form of a separate coupling with the midsole upper pad 20, and is preferably manufactured by bonding using an adhesive.

1 to 2, in the shoe sole of the present invention, the midsole lower pad 30 is formed with a plurality of bottom channels 34 penetrating from one side of the upper surface to the other side of the bottom sole 34, A plurality of lower support protrusions 32 are formed therebetween, 1 to 100, preferably 4 to 20 support protrusions are formed, and a tunnel is formed between the support protrusions so that elasticity and restoring force of the sole can be improved. There is an effect of increasing 2-3 times. In the shoe sole of the present invention, the number of support protrusions can form a stable support form from four, and when the number of support protrusions is 20 or more, the tunnel spacing is narrow, which causes a problem of weak cushioning and repulsion by the support protrusion. .

In the shoe sole of the present invention, the protrusion has a columnar support protrusion, a mulberry-shaped support protrusion, a horizontal pillar-shaped support protrusion, a horizontally long semi-cylindrical support protrusion, a horizontally long mulberry-type support protrusion, and a horizontal half. It is preferable that it is either selected from a mulberry type support protrusion.

As shown in FIGS. 1 and 2, the shoe sole of the present invention has an insertion groove 21 formed at both sides of the rear side edges 25 and 25 'of the upper pad 20 so that the midsole lower pad 30 can be coupled thereto. Since the insertion groove side edges 25 and 25 'are formed on both sides of the insertion groove 21, the weight of one shoe sole is much lighter than the weight of the conventional Masai walking shoe sole and is stable when landing. It can maintain a comfortable posture to prevent safety accidents caused by wearing shoes.

As shown in FIGS. 1 and 2, the shoe sole of the present invention has an insertion groove 21 formed at both sides of the rear side edges 25 and 25 'of the upper pad 20 so that the midsole lower pad 30 can be coupled thereto. Since the insertion groove side edges 25 and 25 'are formed on both side surfaces of the insertion groove 21, the through tunnel penetrating from one side to the other side is not formed, and the other side from one side. Since the through tunnel penetrated to the side is not formed for a long time, it can prevent the problem of rainwater penetrating between the through tunnel, and if it is worn for a long time, foreign matter is inserted between the through tunnel to prevent the problem of getting dirty and dirty.

As shown in FIGS. 1 and 2, the shoe sole of the present invention has an insertion groove 21 formed at both sides of the rear side edges 25 and 25 'of the upper pad 20 so that the midsole lower pad 30 can be coupled thereto. It is formed, the insertion groove side edge jaws (25, 25 ') are formed on both sides of the insertion groove 21, the upper and lower coupling jaw (23, 23') is formed on the upper and lower sides of the insertion groove 21, Upper and lower coupling jaws 33 and 33 'are formed at the upper and lower portions of the lower pad 30, and the upper and lower sides of the midsole upper pad 20 are inserted in the state where the lower pad 30 is inserted into the insertion groove 21. When the lower pad 30 is coupled to the lower portion of the upper pad 20 because the upper and lower coupling jaws 33 and 33 'of the coupling jaw 23 and 23' and the midsole lower pad 30 are tightly coupled with an adhesive. 5 to 7, an elliptical cushion space part 100 is formed between the lower end portion of the upper support protrusion 22 and the upper end portion of the lower support protrusion 32, and the upper support protrusion 22. The upper portion of the lower portion and the upper portion of the lower support projection 32 is always the cushion movement of the up and down direction is operated in the correct position that the center of the support projection is maintained in a constant state, as shown in Figs. In the case of landing, even if the up and down cushion movement is performed for a long time by the strong landing force, the center of the support protrusion may be prevented from being twisted or broken.

As shown in FIGS. 1 and 2, the shoe sole of the present invention has an insertion groove 21 formed in the upper pad, and insertion groove side edges 25 and 25 ′ are formed on both sides of the insertion groove 21. The

tunnels

24 and 34 are formed between the

support protrusions

22 and 32, and an elliptical cushion space portion between the lower end portion of the upper support protrusion 22 and the upper end portion of the lower support protrusion 32. 100) is formed so that the weight of the shoe sole is much lighter than the weight of the conventional masai walking shoe sole and can maintain a stable and comfortable posture when landing, preventing safety accidents caused by wearing shoes.

3 to 12, the shoe sole of the present invention between the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 when the lower pad 30 is coupled to the lower portion of the upper pad 20 Cushion space portion 100 is formed in the elliptical shape, and the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 is in close contact with the moment of landing of the shoe sole for Masai walking as shown in FIGS. The cushion and repulsive force for Masai walking is formed and the lower part of the upper support protrusion 22 and the upper part of the lower support protrusion 32 are separated from each other at the moment the heel falls from the landing, the gap is pushed, and the upper support protrusion 22 Between the lower portion of the lower portion and the upper portion of the lower support protrusion 32 is formed in the cushion space portion 100 of the elliptical shape, the upper support protrusion (22) at the moment of landing the sole of the shoe sole for masai walking as shown in FIGS. Bottom and bottom of the Since the upper portion of the support protrusion 32 is in close contact with the cushion and repulsive force, the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 are adhered to the conventional shoe sole for masai walking. In contrast, the cushion and repulsive force is increased by 2 to 4 times or more, and the impact hardness due to the increased cushion and repulsive force is reduced by half, and the cushioning effect by the increased cushion and repulsive force is increased by 2 to 4 times or more.

In the case of the foot wearing the shoe sole of the present invention, the movement of the foot with respect to the ground during walking can be observed by being divided into a landing stage, a center movement stage, and a departure stage. Since the shoe sole of the present invention has a support protrusion formed at the rear portion of the midsole, and a tunnel is formed between the support protrusions, the shoe sole is landed from the heel in the state of wearing the shoe as shown in Figs. Between the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32, the cushion space portion 100 of the elliptical shape is formed again, and in the state in which the support protrusion is expanded and restored to FIGS. As it is compressed together, the part landing on the ground at the bottom of the shoe sole forms a flat slip shape with the ground, so that the amount of impact due to landing on the sole surface of the shoe is relatively reduced and the support protrusion is parallel to the ground as shown in FIGS. 8 to 9. Because of the contraction to the posture, the cushioning efficiency is high, the soft landing is made and the effect of having to walk on the sand barefoot can be obtained. The midsole of the present invention can obtain the effect of walking on the sand with bare feet to reduce the impact hardness in half and increase the buffering effect by more than two times in case the support protrusion and the tunnel is not formed.

In the shoe sole of the present invention, as soon as the landing of the heel touches the ground, as shown in FIGS. 8 to 9, the grounding area of the sole is wide when the heel touches the ground. As the support protrusion is contracted in parallel with the ground as shown in Figure 9, the cushioning efficiency is high, and a soft landing is made, reducing the impact hardness in half and increases the buffering effect by more than two times. Since the shoe sole of the present invention has a support protrusion formed on the midsole, and a tunnel is formed between the support protrusions, the cushioning efficiency can be increased by contraction by placing the support sole in parallel with the ground of the soft support protrusion. At the landing and centering stage, the support protrusion restores its shape in the detachment stage, thereby increasing the walking efficiency and having the feeling of walking on the sand barefoot. In addition, the shoe sole of the present invention, when the walking movement is connected to the center movement step, as the support protrusion is compressed as shown in Figs. 8 to 9 as the part landing on the ground on the bottom surface of the shoe sole forms a flat slip shape with the ground Since the impact amount of the bottom surface of the sole is relatively reduced and the support protrusion is contracted in parallel with the ground, the cushioning efficiency is high and the soft landing is achieved. The impact force is continuously dispersed and absorbed, and the feeling of walking on the sand barefoot is felt. Can have an effect. Since the midsole with the supporting protrusions has the effect of walking on the sand with bare feet, the impact hardness is reduced by half and the buffering effect is increased more than two times compared to the case where the supporting protrusions are not formed.

In addition, the shoe sole of the present invention, since the support protrusion is compressed as shown in Figs. 8 to 9, the part landing on the ground from the bottom surface of the shoe sole forms a flat slip shape with the ground, so that each joint of the ankle joint, leg and body It is possible to achieve the effect of walking on the sand with bare feet without causing a sudden impact on the foot and making a smooth and natural walking. In the shoe sole of the present invention, the bottom surface of the sole is separated from the ground in the detachment step, and the

support protrusions

22 and 32 which are contracted in the landing step as shown in FIGS. 8 to 9 are restored as shown in FIGS. An elliptic-shaped cushion space portion 100 is formed again between the lower portion of the lower portion and the upper portion of the lower support protrusion 32, and a repulsive force is generated by contracting and restoring movement in the vertical direction. Since the shape shank 50 pushes the pedestrian's foot in the advancing direction, the walking efficiency is high, the light and light walking is possible, and the effect of having a feeling of walking on the sand with bare feet can be obtained.

Midsole in the sole of the present invention is made of any one material selected from synthetic resins and rubber, synthetic resin or natural rubber, synthetic rubber including ethylene vinyl acetate copolymer (EVA), polyester, polyurethane and pylon (PHYLON) It is made of any one material selected from rubber including foamed synthetic rubber. In the sole of the present invention, the midsole is made of a material having a hardness of 30 to 70 (measured by Japan ASKER TYPE C hardness tester: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness tester). If the hardness of the midsole in the shoe sole of the present invention is less than 30 so soft that the midsole does not serve as a support, if the hardness of the midsole is 70 or more there is a problem that the midsole does not act as an elastomer.

In the sole of the present invention, as shown in Figure 12, the midsole upper pad 20 is formed in a domed shape in which the inside portion of the foot arch portion 29 corresponding to the center portion is convex in the upward direction, and the inside of the foot arch of the sole is closely contacted with bare feet. You can get the effect of walking on sand.

In the sole of the present invention as shown in Figs. 3, 4 and 10 to 13, the midsole has a front and rear shape shank 50 built in from the front part to the rear part and the toe groove 52 at the front part of the shank. In the case of landing, the rolling motion is made in the front and rear direction with respect to the ground because the contact is made in a close contact from the front end of the toe to the end of the heel.

In the sole of the present invention, the midsole has a front and rear shape shank 50 therein, so that the heel bottom surface of the sole is formed in a curved shape in the front and rear direction according to the shape of the heel and the locus of movement of the heel relative to the ankle joint during walking. Rolling movement is performed on the ground during walking. The front and rear shape shank 50 embedded in the midsole of the present invention forms the heel bottom surface of the sole in a curved shape in the front and rear directions according to the shape of the heel and the motion trajectory of the heel relative to the ankle joint during walking, rolling on the ground during walking. Allow exercise to take place.

In the shoe sole of the present invention, the front and rear shape shank 50 embedded in the midsole preserves the sole of the sole and the shoe, and allows the sole to have a high degree of deformation of flexion and extension during walking, to be smoothly restored to its original shape. In addition, it improves the stability of walking when walking and adds a repulsive force at the departure stage to promote light walking. In the shoe sole of the present invention, the front and rear shape shanks 50 embedded in the inside of the midsole are preferably formed in a plate shape using a synthetic resin material.

Insole 10 in the shoe sole of the present invention is mounted on top of the midsole, synthetic resin or rubber, preferably natural rubber comprising ethylene vinyl acetate copolymer (EVA), polyester, polyurethane and pylon (PHYLON) Since the shape of the sole is elastic and firmly maintained, the stability of walking is not only high, but the rebounding force is added by the restoring force in the leaving step, and the light walking is made and the walking efficiency is high.

Outsole 40 in the shoe sole of the present invention is bonded to the bottom of the midsole, synthetic resin or rubber, preferably natural rubber comprising ethylene vinyl acetate copolymer (EVA), polyester, polyurethane and pylon (PHYLON) Consists of Outsole 40 in the shoe sole of the present invention is a rigid material of 1 to 50 times larger than the material hardness of the midsole (measured by the Japanese ASKER TYPE C hardness tester: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness tester) It is preferably made of a hard material of 10 to 30 larger. In the present invention, when the hardness of the outsole 40 is too soft compared to the material hardness of the midsole, it is too soft to serve as an outsole support, and when the hardness of the outsole 40 is too hard compared to the material hardness of the midsole, the outsole is too hard. There is a problem that itself does not act as an elastic body.

Claims

Coupled to the lower part of the upper and composed of insoles, midsoles and outsoles, and the soles for the masa walking shoe soles formed in an arc shape convex downward from the front portion to the rear portion for the masa walking, the shoe Outsole 10 is insole 10 is coupled to the upper portion of the midsole upper pad (20); It is composed of any material selected from synthetic resin and rubber, and its material hardness (measured by Japan ASKER TYPE C hardness tester: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness tester) is 30 to 70, and it can be used for masai walking. The bottom surface is formed in an arc shape convex downward from the front part to the rear part, and the inner side of the side edges 25 and 25 'of the rear part of the upper pad so that the midsole lower pad 30 can be engaged. Insertion groove 21 is formed in the upper and lower coupling jaw (23, 23 ') is formed in the upper and lower portion of the insertion groove 21, 4 to 20 upper portion inside the insertion groove 21 The support protrusion 22 is formed, and the upper support protrusion 22 is formed between the upper channel 24, and the lower support pad (30) when the lower pad 30 is coupled to the lower portion of the upper pad (20) 22) the lower part and the lower support protrusion ( 32, the lower portion of the upper support protrusion 22 is supported in the horizontal direction in the form of a semi-elliptic cushion space portion 120 is formed so that the cushion space portion 100 of the elliptical form between the upper portion of the upper support A midsole upper pad 20 having protrusions 22 formed thereon; It is composed of any one material selected from synthetic resin and rubber, and the material hardness (measured by Japan ASKER TYPE C hardness tester: CELLULAR RUBBER & YARN PACKAGE DUROMETER HARDNESS hardness tester) is 30 to 70, and the upper pad is inserted. It is formed to be coupled in a state inserted into the groove 21, and the upper and lower coupling jaw (33, 33 ') in the upper and lower portion of the lower pad to be coupled to the upper and lower coupling jaw (23, 23') of the upper pad. ) Is formed, the lower support protrusion 32 is formed in the form corresponding to the upper support protrusion 22 on the upper surface of the lower pad corresponding to the position corresponding to the upper support protrusion 22 of the upper pad, A lower channel 24 is formed between the lower support protrusions 22, and when the lower pad 30 is coupled to the lower portion of the upper pad 20, the lower portion of the upper support protrusion 22 and the lower support protrusions ( Oval form between the upper areas of 32) Midsole having the lower support protrusion 32 is formed in the state in which the upper portion of the lower support protrusion 32 is a semi-elliptic cushion space portion 220 is formed in a horizontal direction so that the cushion space portion 100 of the Lower pad 30; Front and rear shape shank (50) that is embedded in the inside of the midsole upper pad 20 over the portion where the front heel tip is in contact with the front toe end of the midsole upper pad 20; And an outsole 40 coupled to the lower part of the midsole and having an arc shape in which the bottom surface is convex in the downward direction from the front part to the rear part so as to allow masai walking, and the lower part of the upper pad 20. When the lower pad 30 is coupled to the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 is formed in the cushion space portion 100 of the elliptical shape, the landing of the shoe sole for masai walking The sole portion for the rear tunnel protrusion type masai walking formed with a cushion space portion, characterized in that the cushion and the repulsive force for the masai walking is formed while the lower portion of the upper support protrusion 22 and the upper portion of the lower support protrusion 32 are in close contact with each other. .