Shoe insole and shoe

Abstract

The utility model discloses a shoe middle sole and a shoe, and the shoe middle sole comprises a middle sole body which is integrally made of supercritical foaming materials. The insole body is divided into a heel area, a middle foot area, a half sole area and a toe area in the sole extending direction from the heel to the half sole. And each position area is subdivided into an outer side block and an inner side block along a direction vertical to the extension direction of the sole, and eight blocks are formed in total. The insole body is provided with four functional areas according to the motion characteristics of a foot sole; the cushioning areas are at least positioned on the outer side part of a heel and the outer side part of a middle foot; the springback area is at least located on the inner side of the half sole and the inner side of the toe; the balancing area is connected with the damping area and the springback area and at least penetrates through one position area; the supporting area is located in at least one block. The utility model provides a shoe insole and a shoe, and the shoe insole realizes the reasonable distribution of hardness, density, cushioning property, elasticity and supporting property of the shoe insole at different stress points and movement stages through the partition structure design.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shoes, specifically relates to a shoe midsole and shoe. BACKGROUND

[0002] The design of sports shoes aims to meet the force characteristics and functional requirements of the natural action form of human body during movement, including walking, running, rapid starting, emergency stopping, side shifting and jumping and the like. The foot structure of human body is complex, which is composed of 26 bones, muscles, fascia and tendons, and provides natural functions of stable support, ground adaptation, shock absorption and extension propulsion for movement. However, the functional requirements of shoes are different in the initial stage, the middle stage and the extension stage of different movement actions, especially high requirements are put forward for the midsole of the shoes. Taking running and walking as an example, the heel cushioning after foot landing, the stability of the heel and the forefoot, the propelling force / extension of the forefoot, and the compliance with the natural action mode and the like. The traditional design of the midsole of sports shoes has limitations, and usually a single material or uniform density is used, which cannot fully adapt to the difference in the requirements of the foot pressure distribution and the stress and force area, resulting in poor performance in the impact force area, the control of foot rollover area and the extension force area, affecting the movement performance, stability and comfort. At present, there are sports shoes on the market that use regional adjustment of the hardness and elasticity of the midsole material to provide comfort and support. However, these technologies often only focus on the design of local functional areas, lack of overall layout consideration of all areas, resulting in unnatural movement patterns and affecting the overall movement experience. In addition, the partition design in the prior art is a rough hardness adjustment, which cannot finely design the physical properties of each functional area according to the principles of sports biomechanics, and cannot fully meet the requirements of support, shock absorption and extension in each stage of gait. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a shoe midsole and shoe, which realizes the reasonable distribution of hardness / density, shock absorption, elasticity and supportability of the shoe midsole under different stress points, action modes and movement requirements through fine regional layout design of the shoe midsole according to the principles of sports biomechanics.

[0004] To achieve the above-mentioned purpose, the utility model each embodiment adopts the following technical scheme but is not limited to the following scheme:

[0005] The first technical solution relates to a shoe midsole, comprising a midsole body made of supercritical foaming material, the midsole body is divided into at least three position areas along the direction of heel to forefoot extension of foot bottom, including forefoot area, midfoot area and heel area; further along the vertical foot bottom extension direction, each position area is subdivided into at least two blocks of lateral and medial sides, forming at least six blocks, including toe lateral side, toe medial side, forefoot lateral side, forefoot medial side, midfoot lateral side, midfoot medial side, heel lateral side and heel medial side; the midsole body is provided with four functional areas according to the foot bottom movement characteristics, including shock absorption area, rebound area, balance area and support area; the shock absorption area is located at least in the heel lateral side and the midfoot lateral side to absorb the impact force when the heel touches the ground; the rebound area is located at least in the forefoot medial side to provide energy feedback when the foot bottom stretches; the balance area connects the shock absorption area and the rebound area, and is located at least in one of the four position areas to ensure the connection of the whole process from heel landing to forefoot leaving the ground; the support area is located in at least one block of the four position areas to maintain the stability of the process of contacting the ground.

[0006] The second technical solution is based on the first technical solution, wherein the position area is four, and the midsole body further comprises a toe area, the toe area is located at the toe position of the forefoot area along the foot bottom extension direction, and further subdivided into two blocks of lateral and medial sides along the vertical foot bottom extension direction, including toe lateral side and toe medial side.

[0007] The third technical solution is based on the second technical solution, wherein the same block can contain two different functional areas.

[0008] The fourth technical solution is based on the third technical solution, wherein the supercritical foaming material is a mixed material composed of EVA, TPU and POE.

[0009] The fifth technical solution is based on the fourth technical solution, wherein the midsole body is provided with a frame around its periphery along the circumferential direction, and the frame is fixedly connected with the eight blocks.

[0010] The sixth technical solution is based on the fifth technical solution, wherein the midsole body is provided with a plurality of grooves at the connection between the eight blocks, the grooves extend along the foot bottom extension direction and the vertical foot bottom extension direction, and the depth of the grooves is greater than or equal to 1mm.

[0011] The seventh technical solution is based on the sixth technical solution, wherein the eight blocks of the midsole body are integrally formed or detachably connected.

[0012] The eighth technical solution is based on the fourth technical solution, wherein among the four functional areas, the material density of the shock absorption area is the smallest, the material density of the support area is the largest, and the material density of the rebound area and the balance area is between the shock absorption area and the support area.

[0013] The ninth technical solution is based on the fourth technical solution, wherein, among the four functional areas, the material hardness of the shock absorption area is the smallest, the material hardness of the support area is the largest, and the material hardness of the rebound area and the balance area is between the material hardness of the shock absorption area and the support area.

[0014] The tenth technical solution is based on the fourth technical solution, wherein, among the four functional areas, the material rebound of the shock absorption area is the smallest, the material rebound of the rebound area is the largest, and the material rebound of the support area and the balance area is between the material rebound of the shock absorption area and the rebound area.

[0015] The eleventh technical solution is based on any one of the first to tenth technical solutions, wherein a shoe comprises a shoe sole, a shoe upper, and the shoe midsole described above, the shoe midsole is fixedly connected with the shoe sole, and the shoe upper is fixedly connected to the frame.

[0016] From the above description of the various embodiments of the utility model, compared with the prior art, the various embodiments of the utility model have the following beneficial effects:

[0017] In the first technical solution and related embodiments, the midsole body is integrally made of supercritical foaming material, which optimizes the structure and function of the midsole body and improves the manufacturing efficiency of the shoe production process. The midsole body is divided into at least six blocks and four functional areas, namely, a shock absorption area, a rebound area, a balance area, and a support area, according to the position of the sole and the movement characteristics, to meet the functional requirements of the shoe during movement, including but not limited to shock absorption, stability, support, rebound, energy feedback, etc. Specifically, the shock absorption area is located at least on the lateral side of the heel and the lateral side of the midfoot, which can effectively absorb the impact force when the heel touches the ground, protecting the wearer's feet from injury. At the same time, the center of gravity transfer characteristics after the human body lands are considered to ensure a smooth transition during the movement posture conversion. The rebound area is located at least on the medial side of the forefoot, which can quickly restore the shape of the material when the sole exerts force, ensuring that the user's gait or action during the ground phase can quickly respond and provide strong energy feedback, helping the user reduce muscle fatigue and improve the smoothness and efficiency of the movement. The balance area connects the shock absorption area and the rebound area to ensure smooth connection from heel landing to forefoot leaving the ground, enhance the overall performance of the midsole, promote smooth transition between functional areas, and reduce the abruptness during running, providing a more harmonious and natural movement experience for the user. The support area keeps the ground during the process to prevent the heel from turning too much or too fast.

[0018] In the second technical solution and related embodiments, the position area from the heel to the forefoot can be divided into more position areas according to different movement characteristics, three to eight position areas or more than eight position areas to achieve the best natural movement state effect. In this embodiment, the number of position areas is four, and the toe area is also included.

[0019] In the third technical solution and related embodiments, the same block can contain two different functional areas, and specific areas can be optimally set according to specific needs.

[0020] In the fourth technical solution and related embodiments, the supercritical foaming material adopts a mixed ratio of EVA, TPU and POE. EVA (ethylene-vinyl acetate copolymer) is light and soft, and has excellent cushioning performance, which can effectively absorb and disperse impact force, providing a comfortable wearing experience for the wearer. TPU (thermoplastic polyurethane) has good support and energy feedback capability, which can provide stable support when the foot is exerting force and effectively feedback energy to the wearer, enhancing sports performance. POE (polyolefin elastomer) further improves the durability and response speed of the midsole due to its light weight and high elasticity. The optimal implementation is to adjust the density of different areas of the midsole by adjusting the proportion of these materials, to meet the key indicators such as energy return rate, deformation amount and shock attenuation G value under different sports needs, so that it can adapt to various sports scenes such as running, tennis, golf and basketball, providing a better sports experience for the wearer.

[0021] In the fifth technical solution and related embodiments, a frame is added to the side wall of the midsole to improve the stability of the midsole. The frame can flexibly adjust its thickness, rigidity and size in the forefoot, midfoot and heel according to the functional needs of different sports shoes, to meet the stability and safety requirements in different sports scenes. At the same time, the frame provides a fixed point for the connection of the upper and the midsole.

[0022] In the sixth technical solution and related embodiments, the groove provides moderate torsion and bending space between different blocks, so that the shoe can better respond to the action needs of the foot, allowing the foot to flexibly twist in the shoe according to the natural action of the user, thereby maintaining optimal adaptability in different ground, track speed, landing posture and other sports modes.

[0023] In the seventh technical solution and related embodiments, two types of midsole body structures are provided. The one-piece structure combines advanced foaming molding or injection molding technology to ensure the close combination and seamless connection between the materials of different blocks of the midsole, ensuring the integrity and durability of the shoe. The detachable connection structure facilitates the replacement or adjustment of the blocks, improving the flexibility of the shoe and the possibility of personalized customization.

[0024] In the eighth technical solution and related embodiments, the shock-absorbing area has the smallest material density, which can effectively absorb impact and protect the foot; the support area has the largest material density, which provides stable support; the rebound area and the balance area have material densities between the two, which ensure sufficient elasticity and smooth transition.

[0025] In the ninth technical solution and related embodiments, the material hardness of the four functional zones is adjusted, further enhancing the performance difference of the functional zones, so that the shoes provide comfort and stability while maintaining good motion responsiveness.

[0026] In the tenth technical solution and related embodiments, by adjusting the material resilience, the shoes provide cushioning and support while also providing sufficient energy feedback when the foot is dorsiflexed, improving motion efficiency.

[0027] In the eleventh technical solution and related embodiments, the shoe midsole uses a multi-density / hardness, multi-zone layout technical solution, which can be scientifically designed according to different motion characteristics to meet various functional requirements during motion, including but not limited to cushioning, stability, support, rebound, and energy feedback. The sports shoes made of the above shoe midsole provide a smooth transition experience and a natural motion state experience for the wearer. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0029] Figure 1 Figure 1 is a schematic diagram of the shoe midsole structure of the embodiment;

[0030] Figure 2 Figure 2 is a schematic diagram of the shoe midsole exploded view of the embodiment;

[0031] Figure 3 Figure 3 is a schematic diagram of the functional zone and position block distribution of the embodiment one;

[0032] Figure 4 Figure 4 is a schematic diagram of the area design and its functional zone of the embodiment one;

[0033] Figure 5 Figure 5 is a schematic diagram of the functional zone and position block distribution of the embodiment two;

[0034] Figure 6 Figure 6 is a schematic diagram of the area design and its functional zone of the embodiment two;

[0035] Figure 7 Figure 7 is a schematic diagram of the functional zone and position block distribution of the embodiment three;

[0036] Figure 8 Figure 8 is a schematic diagram of the area design and its functional zone of the embodiment three.

[0037] MAIN DRAWING MARKER EXPLANATION:

[0038] 1. Outer heel; 2. Inner heel; 3. Outer midfoot; 4. Inner midfoot; 5. Outer forefoot; 6. Inner forefoot; 7. Outer toe; 8. Inner toe; 9. Edge; 10. Groove; 11. Cushioning zone; 12. Balance zone; 13. Support zone; 14. Rebound zone. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0040] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0041] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0042] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0043] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0044] See Figures 1 to 8 ,like Figure 1 As shown, a shoe midsole includes a midsole body integrally made of supercritical foam material, specifically, the supercritical foam material is a mixture of EVA, TPU and POE.

[0045] The supercritical foaming material adopts a mixed ratio of EVA, TPU and POE. EVA (ethylene-vinyl acetate copolymer) is light and soft, and has excellent cushioning performance, which can effectively absorb and disperse impact force, and provide a comfortable wearing experience for the wearer. TPU (thermoplastic polyurethane) has good support and energy feedback capability, which can provide stable support when the foot is powered and effectively feedback energy to the wearer, enhancing sports performance. POE (polyolefin elastomer) further improves the durability and response speed of the midsole due to its light weight and high elasticity. By adjusting the proportion of these materials, the density of different areas of the midsole can be adjusted to meet the key indicators such as energy return rate, deformation amount and shock attenuation G value under different sports requirements, so that it can adapt to various sports scenes such as running, tennis, golf and basketball, and provide a better sports experience for the wearer.

[0046] Specifically, EVA with VA content greater than 18% can be used, and preferred varieties include EVA33121, EVA7470, EVA265, EVA7360 and EVA28005.

[0047] Preferred varieties of POE include POE8003, 8180, 8150, 640, 810, 740, 170, 180, 565, OBC9107, 9000, 9100 and 9530.

[0048] Preferred varieties of TPU include 1170A, 1175A and 1180A.

[0049] In this embodiment, the mixed material composed of EVA, TPU and POE includes, in parts by weight, EVA 40-50 parts, TPU 10-30 parts and POE 10-30 parts.

[0050] The material can be selected as follows: EVA and Phylon (MD) material combination, PU (polyurethane) and TPU material combination.

[0051] EVA and Phylon (MD) material combination: EVA is lightweight, elastic, and flexible, providing excellent shock absorption. Although it is prone to water absorption and dirt, its combination with Phylon can alleviate these problems to some extent. As a secondary high-pressure molding product of EVA, Phylon has better rebound performance, a more delicate appearance, better softness, and easy-to-clean properties. In addition, it has superior hardness and extension performance, providing stable support for shoes. By combining the advantages of EVA and Phylon, a lightweight and stable midsole can be designed, providing good shock absorption and rebound. The easy-to-clean feature of Phylon helps reduce the dirt problem of EVA, while the elasticity of EVA enhances the shock absorption effect of Phylon.

[0052] PU and TPU material combination: PU is wear-resistant, elastic, and resistant to oxidation, and is not prone to wrinkling, providing excellent wear resistance and elasticity. However, it has the disadvantage of strong water absorption, easy to rot, yellow, and break when exposed to water. TPU is resistant to wear and tear, has good cushioning and rebound force, and has high strength and durability, making it an ideal choice for combination with PU. By combining the advantages of PU and TPU, a wear-resistant and durable midsole can be designed, providing excellent shock absorption and rebound. The anti-odor and wear-resistant properties of TPU help extend the service life of the shoe and reduce the rotting, yellowing, and breaking problems of PU caused by water absorption.

[0053] The midsole body includes at least three position areas and a frame 9. The positions from the heel to the forefoot can be divided into more position areas according to different sports characteristics, three to eight position areas, or more than eight position areas, to achieve the best natural movement state effect. In this embodiment, there are four position areas. The three position areas are further divided into at least two blocks, such as the lateral side and the medial side, or three or more blocks, such as the medial side, the middle, and the lateral side, along the vertical foot bottom extension direction of each position area. In this embodiment, each position area is divided into two blocks, the lateral side and the medial side.

[0054] In this embodiment, the four position areas are divided into the toe area, the forefoot area, the midfoot area, and the heel area along the foot bottom extension direction from the heel to the forefoot according to the foot bottom position.

[0055] The four position areas are further divided into eight blocks, including the toe lateral side 7, the toe medial side 8, the forefoot lateral side 5, the forefoot medial side 6, the midfoot lateral side 3, the midfoot medial side 4, the heel lateral side 1, and the heel medial side 2, along the lateral side and the medial side of the foot bottom extension direction of the foot bottom.

[0056] The toe area includes the toe lateral side 7 and the toe medial side 8.

[0057] The forefoot area includes the forefoot lateral side 5 and the forefoot medial side 6.

[0058] The midfoot region includes a midfoot lateral portion 3 and a midfoot medial portion 4.

[0059] The heel region includes a heel lateral portion 1 and a heel medial portion 2.

[0060] The midsole body is provided with a plurality of grooves 10 at the connection between the eight blocks, which extend along the foot bottom extension direction and the vertical foot bottom extension direction, and the depth of the grooves 10 is greater than or equal to 1 mm. The grooves 10 provide a moderate torsion space between different blocks, so that the shoe can better respond to the action requirements of the foot, allowing the foot to flexibly twist in the shoe according to the natural action of the user, thereby maintaining the best adaptability in different ground, track speed, landing posture and other movement modes.

[0061] The frame 9, as shown in Figure 2 , is arranged circumferentially along the midsole body and is arranged around the periphery of the midsole body, and the frame 9 is fixedly connected with the eight blocks. Specifically, the frame 9 is fixedly connected with the eight blocks by glue. By adding the frame 9 on the side wall of the midsole, the stability of the midsole is improved. The thickness, rigidity and size of the frame 9 in the forefoot, midfoot and heel positions can be flexibly adjusted according to the functional requirements of different sports shoes, to meet the stability and safety requirements in different sports scenes. For example, in order to maintain the flexibility of the midfoot region, the rigidity of the frame 9 in the midfoot region is reduced, so that the foot can naturally twist during walking or movement, improving the comfort during the transition phase. At the same time, the frame 9 also provides a fixed connection point for the connection between the upper and the midsole.

[0062] The midsole body is provided with four functional regions according to the foot bottom movement characteristics, including a shock absorption region 11, a rebound region 14, a balance region 12 and a support region 13, according to the differences in material density and performance of the midsole body.

[0063] The shock absorption region 11 is located at least in the heel lateral portion 1 and the midfoot lateral portion 3 to absorb the impact force when the heel lands. The shock absorption region 11 adopts high-performance shock absorption materials, which can effectively absorb the strong impact force generated when the foot lands, thereby effectively reducing the burden on the knees and ankles, especially reducing the impact when the heel lands. In addition, the design of the shock absorption region 11 also fully considers the natural characteristics of the body's center of gravity transfer after landing, to ensure smooth transition during movement posture conversion. For example, in sports shoes such as walking, running and outdoor running, the shock absorption region 11 is usually set in the heel lateral portion and the midfoot lateral portion to provide targeted shock absorption effect. For tennis shoes, badminton shoes and the like, according to their movement characteristics, the shock absorption region 11 may extend to the middle or medial side of the heel lateral portion and the heel, to provide full-range shock absorption protection to the greatest extent.

[0064] The rebound zone 14 is located at least in the medial toe 8 and the medial forefoot 6 to provide energy return when the foot pushes off the ground. The rebound zone 14 is made of a material with high elasticity and high energy return properties, which is designed to quickly return to its original shape when the human body performs active force actions such as push-off, acceleration, jumping, and sudden changes in direction. This feature ensures that the user can immediately obtain strong energy return during the push-off phase of gait or when performing actions, helping to reduce muscle fatigue and improve the smoothness and efficiency of movement. In regular activities such as walking and running, high energy return rate materials can help walkers and runners more easily complete each step of propulsion, not only enhancing the smoothness of running, but also improving overall movement efficiency. For sports such as basketball, tennis, and badminton that require frequent and rapid movement and jumping, high energy return rate materials with their fast energy return response time can provide more reliable energy support for athletes in intense competition, enabling them to perform better in rapid movement, sudden stops, quick turns, and jumping, and improving the overall efficiency of the sport.

[0065] The equalization zone 12 connects the cushioning zone 11 and the rebound zone 14 and is located in at least one of the four location zones to ensure smooth transition from heel strike to toe-off. The equalization zone 12 is made of equalization material, which provides satisfactory comfort while ensuring sufficient stability and also has certain rebound properties, ensuring smooth and natural transition and transition during the entire gait cycle from heel strike to toe-off.

[0066] The support zone 13 is located in at least one of the four location zones to prevent excessive or rapid inversion of the heel. The support zone 13 enhances lower extremity stability during movement by selecting materials with high density, small deformation, and good support properties. This design fully considers the characteristics of natural gait, i.e. in natural actions such as walking, running, or outdoor running, the heel usually lands first on the lateral side, then inverts outward and gradually transitions forward. If the stability is insufficient, it will cause tibial pronation and knee torsion moment. Therefore, using high-density, high-hardness, and high-support materials in the medial heel and midfoot areas can enhance the stability of the foot, protect and maintain the correct natural gait. In addition, for specific sports such as tennis and basketball, the design of the support zone 13 can also be adjusted according to the characteristics of the sport. For example, in these sports, the ankle joint may face greater lateral impact forces, so the design of the lateral side 3 of the midfoot with higher density than the medial side can be used to prevent ankle inversion during extreme saves and side steps, enhancing the stability of the shoe and the safety of the wearer.

[0067] The same block can contain two different functional zones. Allowing the same block to contain two different functional zones allows for optimal setting of specific areas according to specific needs.

[0068] Among the four functional zones, the material density of the shock absorption zone 11 is the smallest, the material density of the support zone 13 is the largest, and the material density of the rebound zone 14 and the balance zone 12 is between the two. The material density of the shock absorption zone 11 is the smallest, which can effectively absorb impact and protect the foot; the material density of the support zone 13 is the largest, which provides stable support; the material density of the rebound zone 14 and the balance zone 12 is between the two, which ensures sufficient elasticity and smooth transition.

[0069] Among the four functional zones, the material hardness of the shock absorption zone 11 is the smallest, the material hardness of the support zone 13 is the largest, and the material hardness of the rebound zone 14 and the balance zone 12 is between the shock absorption zone 11 and the support zone 13. Adjusting the material hardness of the four functional zones further enhances the performance difference of the functional zones, so that the shoes provide comfort and stability while also maintaining good sports responsiveness.

[0070] Among the four functional zones, the material rebound of the shock absorption zone 11 is the smallest, the material rebound of the rebound zone 14 is the largest, and the material rebound of the support zone 13 and the balance zone 12 is between the shock absorption zone 11 and the rebound zone 14. By adjusting the material rebound performance, the shoes can provide sufficient energy feedback when the foot is stretched to power, improving sports efficiency while providing shock absorption and support.

[0071] The eight blocks of the midsole body are integrally formed, or the eight blocks and the frame 9 are detachably connected. This embodiment provides two forms of midsole body structure, integrally formed structure combined with advanced foaming molding or injection molding technology, which ensures the close combination and seamless connection between the materials of each block of the midsole, guarantees the integrity and durability of the shoes; while the detachable connection structure is convenient for replacing or adjusting the blocks, improving the flexibility of the shoes and the possibility of personalized customization.

[0072] In this embodiment, the midsole body is made by supercritical foaming material integration, realizing the optimization of the structure and function of the midsole body and improving the manufacturing efficiency of the shoe production process. The midsole body is divided into at least six blocks and four functional areas, namely, the cushioning area 11, the rebound area 14, the balancing area 12, and the support area 13, according to the position and movement characteristics of the foot bottom, to meet the functional requirements of the shoes during exercise, including but not limited to cushioning, stability, support, rebound, energy feedback, etc. Specifically, the cushioning area 11 is located at least at the lateral heel 1 and the lateral midfoot 3, which can effectively absorb the impact force when the heel touches the ground, protecting the wearer's feet from injury, while considering the characteristics of the center of gravity transfer after the human body lands, to ensure a smooth transition during the conversion of the exercise posture. The rebound area 14 is located at least at the medial forefoot 6, which can quickly restore the shape of the material when the foot bottom exerts force, ensuring that the user's gait or action during the foot-striking stage can quickly respond and provide strong energy feedback, helping the user reduce muscle fatigue and improve the smoothness and efficiency of the exercise. The balancing area 12 connects the cushioning area 11 and the rebound area 14, ensuring smooth connection from heel landing to forefoot leaving, enhancing the overall performance of the midsole, promoting smooth transition between functional areas, reducing the abruptness during running, and providing a more harmonious and natural exercise experience for the user. The support area 13 remains stable during the process of contacting the ground, preventing the heel from turning too much or too fast.

[0073] A shoe includes a sole, an upper, and the above-mentioned shoe midsole. The shoe midsole is fixedly connected to the sole, and the upper is fixedly connected to the frame. The shoe midsole can be scientifically designed according to different movement characteristics by adopting the layout technology of multiple densities / hardness and multiple blocks, fully meeting the functional requirements during exercise, including but not limited to cushioning, stability, support, rebound, and energy feedback, etc. The sports shoes made of the above-mentioned shoe midsole provide the wearer with a smooth transition experience and a natural exercise state experience.

[0074] The following three embodiments demonstrate how to define the functional areas and their functional requirements from simple repetitive movements (walking / running / outdoor, etc.) to complex movements (tennis / golf, etc.).

[0075] Example One

[0076] As shown in Figure 3 and Figure 4 , it is a case of walking / running / outdoor shoes. According to the scientific test data of sports, the scientific design of the area and its functional requirements, the cushioning area 11 is generally the lateral heel 1 and the lateral midfoot 3; the support area 13 is generally the medial heel 2 and the medial midfoot 4; the balancing area 12 is generally the lateral forefoot 5 and the lateral toe 7; and the rebound area 14 is generally the medial forefoot 6 and the medial toe 8.

[0077] Table One: Physical Property Specification Table of Each Functional Area of Walking / Running / Outdoor

[0078] Function Zoning Hardness Density Rebound G-Value High Rebound 8 40 0.13 >70 <9 Rebound 7 40 0.13 >65 <9 High Rebound 6 40 0.13 >70 <9 Rebound 5 40 0.13 >65 <9 Support 4 45 0.15 NA NA High Cushioning 3 40 0.12 <40 <8 Support 2 45 0.15 NA NA High Cushioning 1 40 0.12 <40 <8

[0079] Example Two

[0080] As shown in Figure 5 and Figure 6 , it is a tennis shoe case. According to the scientific test data of sports science, the scientific regional design and its functional requirements, according to the characteristics of tennis action, the cushioning area 11 can cover the lateral heel 1 and the medial heel 2 to provide maximum cushioning protection. The support area 13 is generally the lateral forefoot 5 and the lateral toe 7, and the balance area 12 is generally the lateral midfoot 3 and the medial midfoot 4. The rebound area 14 is generally the medial forefoot 6 and the medial toe 8. In this embodiment, through the insight of key movement patterns and use requirements during tennis movement, the current optimal setting is obtained, and the support area 13 and the balance area 12 are designed in the lateral midfoot 3.

[0081] Table Two Physical Property Specification Table of Each Functional Area of Tennis Shoes

[0082]

[0083]

[0084] Example Three

[0085] As shown in Figure 7 and Figure 8 , it is a golf shoe case. According to the scientific test data of sports science, the scientific regional design and its functional requirements, according to the characteristics of golf action, the cushioning area 11 is generally the lateral heel 1 and the lateral midfoot 3; the balance area 12 is generally the medial heel 2 and the medial midfoot 4, and the rebound area 14 is generally the forefoot area and the toe area. In this embodiment, through the insight of movement patterns and use requirements (walking + swinging / putting), the current optimal setting is obtained, and the support area 13 and the balance area 12 are designed in the same block.

[0086] Table Three Physical Property Specification Table of Each Functional Area of Golf Shoes

[0087] Function Zoning Hardness Density Rebound G-Value High Rebound 8 45 0.16 >70 <9 High Rebound 7 45 0.16 >70 <9 High Rebound 6 45 0.16 >70 <9 High Rebound 5 45 0.16 >70 <9 Balanced 4 45 0.15 NA NA High Cushioning 3 45 0.12 <40 <8 Balanced 2 45 0.15 NA NA High Cushioning 1 38 0.12 <40 <8

[0088] The above description of the specification and the embodiments is used to explain the protection scope of the present application, but does not constitute a limitation on the protection scope of the present application. Through the inspiration of the present application or the above embodiments, the ordinary skilled in the art combines the common knowledge, the ordinary technical knowledge in the art and / or the prior art, and obtains the modification, equivalent replacement or other improvement of the embodiments of the present application or one part of the technical features through logical analysis, reasoning or limited test, which should be included in the protection scope of the present application.

Claims

1. A shoe midsole characterized by, The midsole body made of supercritical foaming material includes at least three position areas from heel to forefoot along the direction of foot bottom extension, including forefoot area, midfoot area and heel area; each position area is further divided into at least two blocks of lateral side and medial side along the direction perpendicular to the foot bottom extension, forming at least six blocks, including forefoot lateral side (5), forefoot medial side (6), midfoot lateral side (3), midfoot medial side (4), heel lateral side (1) and heel medial side (2); the midsole body is provided with four functional areas according to the foot bottom movement characteristics, including shock absorption area (11), rebound area (14), balance area (12) and support area (13); the shock absorption area (11) is located at least in the heel lateral side (1) and the midfoot lateral side (3) to absorb the impact force when the heel touches the ground; the rebound area (14) is located at least in the forefoot medial side (6) to provide energy feedback when the foot bottom stretches; the balance area (12) connects the shock absorption area (11) and the rebound area (14) and is located at least in one of the three position areas to ensure the connection from heel landing to forefoot leaving the ground; the support area (13) is located in at least one block of the four position areas to maintain the stability of the process of contacting the ground.

2. A shoe midsole as defined in claim 1, wherein The number of the position areas is four, and the midsole body further includes a toe area located at the toe position of the forefoot area along the direction of foot bottom extension, which is further divided into two blocks of lateral side and medial side along the direction perpendicular to the foot bottom extension, including toe lateral side (7) and toe medial side (8).

3. A shoe midsole as defined in claim 2, wherein The same block can contain two different functional areas.

4. A shoe midsole as defined in claim 3, wherein The midsole body is provided with a frame (9) around its periphery in the circumferential direction, and the frame (9) is fixedly connected with the eight blocks.

5. A shoe midsole as defined in claim 4, wherein The midsole body is provided with a plurality of grooves (10) at the connection between the eight blocks, and the grooves (10) extend along the direction of foot bottom extension and the direction perpendicular to the foot bottom extension, and the depth of the grooves (10) is greater than or equal to 1mm.

6. A shoe midsole as defined in claim 5, wherein The eight blocks of the midsole body are integrally formed or can be detachably connected.

7. A shoe midsole as defined in claim 3, wherein Among the four functional areas, the material density of the shock absorption area (11) is the smallest, the material density of the support area (13) is the largest, and the material density of the rebound area (14) and the balance area (12) is between the shock absorption area (11) and the support area (13).

8. A shoe midsole as defined in claim 3, wherein, Among the four functional areas, the material hardness of the shock absorption area (11) is the smallest, the material hardness of the support area (13) is the largest, and the material hardness of the rebound area (14) and the balance area (12) is between the shock absorption area (11) and the support area (13).

9. A shoe midsole as defined in claim 3, wherein, Among the four functional areas, the material rebound of the shock absorption area (11) is the smallest, the material rebound of the rebound area (14) is the largest, and the material rebound of the support area (13) and the balance area (12) is between the shock absorption area (11) and the rebound area (14).

10. A shoe characterized by It comprises a sole, an upper and a shoe midsole as claimed in any one of claims 1 to 9, the shoe midsole is fixedly connected with the sole, and the upper is fixedly connected with the frame (9).

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