SHOE MIDSOLE AND SHOE

Abstract

Disclosed are a shoe midsole and a shoe. The shoe midsole includes a midsole body. The midsole body is provided with a plurality of followers, the followers include segmentation portions and support bodies. The segmentation portions are distributed adjacent to the support bodies. At least one segmentation portion runs through the midsole body in a width direction of the midsole body. In the shoe midsole and the shoe of the present application, through adjacent distribution of the segmentation portion and the support body, the support body has a space that inclines toward the peripheral segmentation portion. When a shoe sole is stressed during exercise, the support body is subjected to an impact force to incline toward the peripheral segmentation portion along a stressed direction. A ground impacting force is absorbed through passive compression deformation of the support body, such that effects of cushioning and shock absorption are realized.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Application No. PCT/CN2023/101785, filed on Jun. 21, 2023, which claims priority to Chinese Patent Application No. 202310292629.7, filed on Mar. 23, 2023. All of the aforementioned applications are incorporated herein by reference in their entireties.

TECHNICAL FIELD

The present application belongs to the field of shoes, and particularly to a shoe midsole and a shoe.

BACKGROUND

As indispensable necessities in people's daily life, shoes are initially used for protecting feet from being injured by external environments, so as to guarantee walking safety. With the rapid development of living standards, more and higher requirements for the shoes are proposed by people. Some shoes have breathable and dry effects, some shoes have warm-keeping effects, some shoes have non-slip effects, and some shoes have shock absorption effects.

Existing shoes are mainly constituted by outsoles, midesoles, and innersoles. The midesoles are the keys of the entire shoe sole structure design, and important components for ensuring that the entire shoe has good cushioning performance, stability, shock absorption, and energy regression, directly affecting the functionality and comfortableness of the shoes.

Some studies have shown that, for every 1 kilometer a person walks, one foot needs to withstand 600-700 gravitational impacts, and the impact force is even greater if the person engages in strenuous exercise. During running, the impact force of the foot touching the ground will be 2-4 times the weight of a human body. Such impact force creates shock waves inside the human body, causing varying degrees of damage to various parts of the human body. Therefore, the shoe soles are required to have a certain function of absorbing and reducing the impact force of the ground, i.e. shock absorption and cushioning performance.

A midsole in the prior art mostly depends on selection of a midsole material to obtain better shock absorption performance, and a shock absorption effect is generally realized through the characteristics that the midsole material itself can be vertically compressed and released, but such shock absorption structure cannot effectively average an impact force.

SUMMARY

The present application is intended to provide a shoe midsole and a shoe, to improve cushioning and shock absorption effects of a shoe sole.

In order to achieve the objective, the present application provides the following technical solutions.

The shoe midsole provided in the present application includes a midsole body. The midsole body is provided with a plurality of followers, and the followers include segmentation portions and support bodies. The segmentation portions are distributed adjacent to the support bodies. At least one segmentation portion runs through the midsole body in a width direction of the midsole body.

Preferably, the support body is in at least one shape of a slender shape, a blocky shape, or a filamentous shape.

Preferably, the support body is a square or a round block. The segmentation portions in the midsole body change in a segmentation direction according to functional requirements, and segments the support body into a plurality of pieces.

Preferably, the filamentous support body is formed through segmentation of the segmentation portions densely distributed horizontally and longitudinally.

Preferably, the followers are disposed corresponding to a forefoot portion and/or a rear foot portion of a human foot.

Preferably, the cross section of the segmentation portion is in one or more combinations of a rectangle, a triangle, an arc, a trapezoid, and a linear-columnar shape.

Preferably, the segmentation portion is provided on an upper surface and/or a lower surface of the midsole body.

Preferably, the support body is disposed perpendicular to and/or inclined to the midsole body.

Preferably, an inclined angle between the support body and the midsole body is 70°-80°; and the support body inclines toward a front side of the midsole body.

Preferably, the width of the segmentation portion is 30%-80% of the height of the support body.

Preferably, a filler is provided in the segmentation portion.

Preferably, the filler is a non-Newtonian fluid material.

Preferably, the support bodies are uniformly distributed in the midsole body.

The present application further provides a shoe, which includes the shoe midsole.

The present application has the following beneficial effects.

Firstly, through the segmentation portion structure disposed on the midsole body, the segmentation portion is distributed adjacent to the support body, such that the support body has a space that inclines toward the peripheral segmentation portion. When a shoe sole is stressed during exercise, the support body is subjected to an impact force to incline toward the peripheral segmentation portion along a stressed direction. In an aspect, a ground impacting force is absorbed through passive compression deformation of the support body, such that effects of cushioning and shock absorption are realized; and in another aspect, the support body inclines along the stressed direction, such that the foot is prevented from causing friction between a plantar portion and a shoe pad due to the impact force, thereby reducing the occurrence of sports injuries such as plantar blistering.

Secondly, through the combination of the support body and the segmentation portion, the segmentation portion provides a deformation space for the support body, such that the support body can be deformed when being subjected to a force in a horizontal direction. Through dimension design of the depth and width of the segmentation portion, a shoe sole is prevented from being too large due to a too-large ratio of the width of the segmentation portion to the height of the support body, to cause an inclined amplitude of the support body to be too large, affecting the support stability of the shoe sole; or the inclined amplitude of the support body is too small due to a too-small ratio of the width of the segmentation portion to the height of the support body, limiting the cushioning and shock absorption effects of the shoe sole.

Thirdly, the segmentation portion is filled with the non-Newtonian fluid material. When the foot touches the ground, a vertical force is much greater than a horizontal force. The shoe sole is instantaneously subjected to an impact force to make the non-Newtonian fluid material hardened and strengthened, such that the support strength of the shoe sole is strengthened, and phenomenon such as flipping caused by excessive stress are avoided.

The cushioning and shock absorption of the shoe sole are affected when the material of the shoe sole is too hard. In this case, the force in the horizontal direction is small, and the non-Newtonian fluid is soft, such that the material of the support body itself is deformed with an acting force and inclines toward a stressed direction. By absorbing the acting force through the deformation and inclination of the support body, it ensures that the force of the shoe sole in the horizontal direction on achieving the cushioning and shock absorption effects is reduced to reduce a shear force in the horizontal direction generated at the ankle and knee joints, thereby reducing the occurrence of sports injuries.

Lastly, through design requirements of different cross sections, in combination with design requirements of the depth and width of the segmentation portion, the shock-absorbing shoe midsole with different adaptability can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment I of the present application.

FIG. 2 is an enlarged schematic diagram of A in FIG. 1.

FIG. 3 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment II of the present application.

FIG. 4 is an enlarged schematic diagram of B in FIG. 3.

FIG. 5 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment III of the present application.

FIG. 6 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment IV of the present application.

FIG. 7 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment V of the present application.

FIG. 8 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment VI of the present application.

FIG. 9 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment VII of the present application.

FIG. 10 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment VIII of the present application.

FIG. 11 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment IX of the present application.

FIG. 12 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment X of the present application.

FIG. 13 is a schematic diagram of a three-dimensional structure of a shoe midsole according to Embodiment XI of the present application.

FIG. 14 is an enlarged schematic diagram of C in FIG. 13.

FIG. 15 is a schematic diagram of a top view structure of a shoe midsole according to Embodiment XII of the present application.

FIG. 16 is a schematic diagram of a top view structure of a shoe midsole according to Embodiment XIII of the present application.

FIG. 17 is a schematic diagram of a top view structure of a shoe midsole according to Embodiment XIV of the present application.

FIG. 18 is a schematic diagram of a top view structure of a shoe midsole according to Embodiment XV of the present application.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present application is further described with reference to the drawings and specific implementations.

The contents not described in detail in this specification are prior art known to those skilled in the art. In descriptions of the present application, it is to be understood that, direction or position relationships indicated by terms such as “central”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “anticlockwise” and the like are direction or position relationships based on the accompanying drawings, and are merely intended to facilitate the descriptions of the present application and simplify the descriptions, rather than indicating or implying that a referred apparatus or element must have a particular direction or be constructed and operated in a particular direction. Therefore, these terms should not be interpreted as limiting the present application. In addition, the terms “first”, “second” and “third” are for distinguishing purposes only, and should not be construed as indicating or implying relative importance.

Embodiment I

As shown in FIG. 1 and FIG. 2, this embodiment provides a shoe midsole, which includes a midsole body 1, and the midsole body 1 is provided with a plurality of followers. The followers include segmentation portions 2 and support bodies 4. The segmentation portion 2 is distributed adjacent to the support body 4, such that the support body has a space that inclines toward the peripheral segmentation portion. When a shoe sole is stressed during exercise, the support body is subjected to an impact force to incline toward the peripheral segmentation portion along a stressed direction. In an aspect, a ground impacting force is absorbed through passive compression deformation of the support body, such that effects of cushioning and shock absorption are realized; and in another aspect, the support body inclines along the stressed direction, such that the foot is prevented from causing friction between a plantar portion and a shoe pad due to the impact force, thereby reducing the occurrence of sports injuries such as plantar blistering.

A material of the midsole body 1 of this embodiment is a foam material. The support body 4 is in a slender shape. The segmentation portion 2 has a certain width space. Each segmentation portion 2 runs through two sidewalls of the midsole body 1 in a width direction of the midsole body 1. An upper surface of the midsole body 1 is provided with the plurality of segmentation portions 2, and the plurality of segmentation portions 2 are arranged at intervals in a length direction of the midsole body 1. Through such arrangement, a force acting on the shoe midsole in a horizontal direction can be absorbed, such that runner's knee is prevented, and knee injuries are avoided. When the shoe midsole is subjected to the force acting on the shoe midsole in the horizontal direction, because of the arrangement of the segmentation portion 2, the midsole body 1 can be deformed in the horizontal direction, such that the deformation of the midsole body 1 in the horizontal direction is greater than the deformation in a vertical direction, so as to achieve a good sports cushioning effect. The midsole in this embodiment is made of the foam material, such that the midsole body 1 itself can be vertically compressed and released, and can also deform and cushion horizontally, thereby effectively averaging the impact force. In particular, when there are a plurality of segmentation portions 2, the support body 4 is formed between the adjacent segmentation portions 2. Through the combination of the support body 4 and the segmentation portion 2, the segmentation portion 2 provides a deformation space for the support body 4, such that the support body 4 can be deformed when being subjected to a force in the horizontal direction, and has a larger deformation capability of the horizontal direction.

The width of the segmentation portion may be 30%-80% of the height of the support body. For example, the width of the segmentation portion is 3 mm, and the height of the support body is 4-10 mm, preferably 5 mm. Definitely, in other embodiments, it may also be that, the width of the segmentation portion is 5 mm, and the height of the support body is 7-15 mm, preferably 8 mm. An inclined amplitude of the support body is too-large due to a too-large ratio of the width of the segmentation portion to the height of the support body, such that the support stability of the shoe sole is affected; and the inclined amplitude of the support body is too small due to a too-small ratio of the width of the segmentation portion to the height of the support body, such that the cushioning and shock absorption effects of the shoe sole are limited.

In this embodiment, the support body 4 is wider (referring to FIG. 1-FIG. 2) than the segmentation portion 2. In this way, a support effect of a shoe sole can be guaranteed, and the impact force may be dispersed more uniformly.

In this embodiment, the segmentation portion 2 may specifically be disposed corresponding to a forefoot portion of a human foot. During exercise, there is more stress on the forefoot portion, an absorption force can be better concentrated by disposing the segmentation portion 2 at the forefoot portion, thereby achieving a better cushioning effect.

A cross section of the segmentation portion 2 in this embodiment is a rectangle.

The support body 4 in this embodiment is disposed perpendicular to the midsole body 1.

When the foot touches the ground until it is fully stressed, the support body 4 inclines toward a stressed direction with an acting force.

In a gait that a heel first touches the ground, when no force is applied, the support body 4 is in the vertical direction. When the foot touches the ground, the support body 4 is subjected to a force transiting in a direction from the heel to the forefoot, and along the stressed direction, the support body starts inclining toward a toe cap or forefoot direction. When the foot is fully stressed, the support body 4 inclines forward, to a state where an included angle formed between the support body 4 and a side horizontally oriented towards the toe cap/tiptoe direction is 30°-70° (an inclined amplitude is related to the magnitude of the impact force and the weight of a wearer). When the foot is off the ground, the support body 4 restores to be in the vertical direction.

In a gait that the forefoot first touches the ground, when no force is applied, the support body 4 is in the vertical direction. When the foot touches the ground, the support body 4 is subjected to a force transiting in a direction from the forefoot to the heel, and along the stressed direction, the support body 4 starts inclining toward a heel cap or heel direction. When the foot is fully stressed, the support body 4 inclines backward, to a state where an included angle formed between the support body 4 and a side horizontally oriented towards the heel cap/heel direction is 40°-60° (the inclined amplitude is related to the magnitude of the impact force and the weight of a wearer). When the foot is off the ground, the support body 4 restores to be in the vertical direction.

Condition of Subject 1: height 180 cm; weight 70 Kg, and in the gait that the heel first touches the ground:

• • at a speed of 3.3 m/s, the support body 4 is inclined at an angle of 60°-70°;
  • at a speed of 4.0 m/s, the support body 4 is inclined at an angle of 55°-60°; and
  • at a speed of 4.5 m/s, the support body 4 is inclined at an angle of 50°-55°.

Condition of Subject 2: height 182 cm; weight 85 Kg, and in the gait that the heel first touches the ground:

• • at a speed of 3.3 m/s, the support body 4 is inclined at an angle of 50°-65°;
  • at a speed of 4.0 m/s, the support body 4 is inclined at an angle of 40°-50°; and
  • at a speed of 4.5 m/s, the support body 4 is inclined at an angle of 35°-40°.

From a kinematic principle and the specific test conditions of the above subjects, it may be learned that if the speed is faster, the impact force when the foot touches the ground is larger, and the support body 4 deforms and inclines more violently, such that the impact force can be greatly absorbed and/or averaged, thereby generating an obvious shock absorption effect.

This embodiment further provides a shoe, which includes the shoe midsole.

Embodiment II

As shown in FIG. 3 and FIG. 4, a difference between this embodiment and Embodiment I lies in that: the segmentation portion 2 in this embodiment is provided with a filler 3.

The filler 3 in this embodiment is a non-Newtonian fluid material. Non-Newtonian fluid refers to a fluid that does not meet the Newton's experimental law of viscosity, i.e., a fluid of which shear stress is not linearly related to the rate of shear strain. Concentrated solutions and suspensions of polymers, etc. are generally non-Newtonian fluids. Polyethylene, polyacrylamide, polyvinyl chloride, nylon 6, PVS, celluloid, polyester, a rubber solution, various engineering plastics, and melts or solutions of synthetic fibers are all non-Newtonian fluids. The non-Newtonian fluid material is characterized by being stronger when encountering the strong and weaker when encountering the weak. The segmentation portion 2 between the support body 4 is filled with the non-Newtonian fluid material. When the foot touches the ground, a vertical force is much greater than a horizontal force. The shoe sole is instantaneously subjected to an impact force to make the non-Newtonian fluid material hardened and strengthened, such that the support strength of the shoe sole is strengthened, and phenomenon such as flipping caused by excessive stress are avoided. The cushioning and shock absorption of the shoe sole are affected when the material of the shoe sole is too hard. In this case, the force in the horizontal direction is small, and the non-Newtonian fluid is soft, such that the material of the support body itself is deformed with an acting force and inclines toward a stressed direction. By absorbing the acting force through the deformation and inclination of the support body, it ensures that the force of the shoe sole in the horizontal direction on achieving the cushioning and shock absorption effects is reduced to reduce a shear force in the horizontal direction generated at the ankle and knee joints, thereby reducing the occurrence of sports injuries. By combining the filler 3 and the segmentation portion 2, a deformation capability of an original midsole body 1 under stress is changed. When a vertical shock absorption capability of the original midsole body 1 itself is guaranteed, the horizontal shock absorption capability of the shoe midsole is improved, and the impact force is shared in the horizontal and vertical directions, respectively, such that a cushioning effect is more excellent. In particular, cushioning and shock absorption effects can be well achieved on the horizontal impact force on the shoe midsole.

Embodiment III

as shown in FIG. 5, a difference between this embodiment and Embodiment I lies in that: a cross section of the segmentation portion 2 in this embodiment is a combination of a rectangle and trapezoid, to form an upper-trapezoidal and lower-rectangular structure. The structure with the upper-trapezoidal and lower-rectangular cross section is better in cushioning effect relative to a structure with the rectangular cross section.

Embodiment IV

As shown in FIG. 6, a difference between this embodiment and Embodiment III lies in that: the segmentation portion 2 is disposed corresponding to a hindfoot portion of a corresponding human foot. During exercise, there is more stress on the hindfoot portion, an absorption force can be concentrated by disposing the segmentation portion 2 at the hindfoot portion, thereby achieving the excellent cushioning effect.

Embodiment V

As shown in FIG. 7, a difference between this embodiment and Embodiment III lies in that: the segmentation portion 2 is disposed corresponding to the forefoot portion and the hindfoot portion of the human foot. During exercise, there is more stress on the forefoot and hindfoot portions, the absorption force is comprehensively concentrated by disposing the segmentation portions 2 at both the forefoot and hindfoot portions, thereby achieving the excellent cushioning effect.

Embodiment VI

As shown in FIG. 8, a difference between this embodiment and Embodiment III lies in that: the segmentation portion 2 is disposed on a lower surface of the midsole body 1.

Embodiment VII

As shown in FIG. 9, a difference between this embodiment and Embodiment III lies in that: both the upper and lower surfaces of the midsole body 1 are provided with the segmentation portions 2, the segmentation portions 2 are disposed corresponding to the forefoot portion of the human foot, and the upper and lower segmentation portions 2 are misaligned with each other.

Embodiment VIII

As shown in FIG. 10, a difference between this embodiment and Embodiment III lies in that: both the upper and lower surfaces of the midsole body 1 are provided with the segmentation portions 2, the segmentation portion 2 located on the upper surface of the midsole is disposed corresponding to the hindfoot portion of the human foot, and the segmentation portion 2 located on the lower surface of the midsole is disposed corresponding to the forefoot portion of the human foot.

Embodiment IX

As shown in FIG. 11, a difference between this embodiment and Embodiment III lies in that: two segmentation portions 2 close to the hindfoot portion (left side) do not run through front and rear sidewalls of the midsole body 1, and the remaining segmentation portions 2 all run through the front and rear sidewalls of the midsole body 1.

Embodiment X

As shown in FIG. 12, a difference between this embodiment and Embodiment VI lies in that: a cross section of the segmentation portion 2 in this embodiment is a trapezoid.

Embodiment XI

As shown in FIG. 13 to FIG. 14, a difference between this embodiment and Embodiment I lies in that: the support body 4 inclines at an angle of 70°-80° toward the toe cap direction, i.e. The support body has an included angle of 70°-80° with the side horizontally oriented towards the toe cap.

In the gait that the heel first touches the ground, when no force is applied, the support body 4 inclines 70°-80° forward. When the foot touches the ground, the support body 4 is subjected to an acting force transiting from the heel to the forefoot, and the support body 4 starts inclining toward the forefoot or toe cap direction. When the foot is fully stressed, the support body 4 inclines forward, to the state where the included angle formed between the support body 4 and the side horizontally oriented towards the toe cap/tiptoe direction is 20°-50° (the inclined amplitude is related to the magnitude of the impact force and the weight of a wearer). When the foot is off the ground, the support body 4 restores a state of inclining 70°-80° forward.

Compared with a solution of vertically disposing the support body, the solution of disposing the support body to incline toward the toe cap direction is more suitable for the gait that the heel first touches the ground. In the gait, an inclined structure is more conductive to inclined deformation of the support body 4 when the shoe midsole is stressed, such that the effect of cushioning and reducing the horizontal acting force is further achieved.

Likewise, in other embodiments, the support body 4 may also be disposed inclining toward the heel cap direction. Compared with the solution of vertically disposing the support body, the solution of disposing the support body to incline toward the heel cap direction is more suitable for the gait that the forefoot first touches the ground. In the gait, an inclined structure is more conductive to inclined deformation of the support body 4 when the shoe midsole is stressed, such that the effect of cushioning and reducing the horizontal acting force is further achieved.

Embodiment XII

As shown in FIG. 15, a difference between this embodiment and Embodiment I lies in that: the support body 4 is a square. The segmentation portions are distributed in the transverse and longitudinal directions on the surface of the midsole body, so as to segment the support body into a plurality of squares.

Embodiment XIII

As shown in FIG. 16, a difference between this embodiment and Embodiment I lies in that: the support body 4 is a round block. The segmentation portions are distributed in an arc-shaped manner on the surface of the midsole body, so as to segment the support body into a plurality of round blocks.

Embodiment XIV

As shown in FIG. 17, a difference between this embodiment and Embodiment I lies in that: the support body 4 is in a filamentous shape, and the filamentous support body 4 is segmented into a plurality of small columns through segmentation of the segmentation portions densely distributed horizontally and longitudinally, similar to a brush structure.

Embodiment XV

As shown in FIG. 18, a difference between this embodiment and Embodiment XIII lies in that: the support bodies are unevenly distributed on the midsole body, or unevenly distributed in any functional region (only disposing any several stress points) of the midsole body.

The above embodiments are merely for describing and not intended to limit the technical solutions of the present application. Although the disclosure has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that, they can still make modifications to the technical solutions recited in the above embodiments or make equivalent replacements to a part of the technical features thereof; and the modifications or replacements do not cause essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A shoe midsole, comprising:

a midsole body, wherein the midsole body is provided with a plurality of followers; the followers comprise segmentation portions and support bodies; the segmentation portions are distributed adjacent to the support bodies; at least one segmentation portion runs through the midsole body in a width direction of the midsole body; and the width of the segmentation portion is 30%-80% of a height of the support body.

2. The shoe midsole according to claim 1, wherein the support body is in at least one shape of a slender shape, a blocky shape, or a filamentous shape.

3. The shoe midsole according to claim 2, wherein the filamentous support body is formed through segmentation of the segmentation portions densely distributed horizontally and longitudinally.

4. The shoe midsole according to claim 1, wherein the followers are disposed corresponding to a forefoot portion and/or a rear foot portion of a human foot.

5. The shoe midsole according to claim 1, wherein a cross section of the segmentation portion is in one or more combinations of a rectangle, a triangle, an arc, a trapezoid, and a linear-columnar shape.

6. The shoe midsole according to claim 1, wherein the segmentation portion is provided on an upper surface and/or a lower surface of the midsole body.

7. The shoe midsole according to claim 1, wherein the support body is disposed perpendicular to and/or inclined to the midsole body.

8. The shoe midsole according to claim 7, wherein an inclined angle between the support body and the midsole body is 70°-80°; and the support body inclines toward a front side of the midsole body.

9. The shoe midsole according to claim 1, wherein a filler is provided in the segmentation portion.

10. The shoe midsole according to claim 9, wherein the filler is a non-Newtonian fluid material.

11. The shoe midsole according to claim 1, wherein the support bodies are uniformly distributed in the midsole body.

12. A shoe, comprising the shoe midsole according to claim 1.