Sole and shoe

Abstract

The utility model discloses a sole, including from top to bottom superposed first support piece and second elastic layer, first support piece includes the forefoot region, and the forefoot region forms on the first hollow area, and the inboard of first hollow area is provided with first convex part, and the outboard of first hollow area is provided with second convex part, and the one end of first convex part is close to the one end of second convex part through first connecting portion and is connected, and first convex part and second convex part all arch up along the vertical direction, and the first area on second elastic layer is surrounded and forms first hollow structure and second hollow structure with first convex part and second convex part respectively. The arched structure on the sole of the utility model can evenly transmit the pressure received to the first connecting piece of the forefoot region downward, to provide stable support to the lateral pressure, and the hollow structure can recycle and release energy through the deformation space, to maintain sufficient stability support performance and flexibility, while providing elastic power effect, to enhance the sports performance.

Description

Technical Field

[0001] This utility model relates to the field of footwear, and more particularly to a sole and a shoe containing the sole. Background Technology

[0002] The midsole of sports shoes such as basketball shoes, volleyball shoes, and badminton shoes directly affects the comfort, stability, and performance of the wearer. Athletes need the midsole of the shoe to have good cushioning to absorb the impact of jumping and sudden stops, protect the joints from injury, and at the same time provide sufficient support to stabilize the arch and ankle and prevent sprains.

[0003] Furthermore, a highly resilient and responsive midsole helps players quickly convert power on the court, enhancing explosiveness. Improved outsole durability ensures the midsole maintains its performance under frequent use, resisting deformation or damage. Lightweight design helps reduce foot strain, improving speed and agility, while moderate flexibility provides comfort and freedom of movement while maintaining support. These functional requirements work together to ensure athletes maintain peak performance during competition and reduce the risk of injury.

[0004] Current shoe sole midsole structures are mainly composed of elastic foam materials of various hardness and shape. The sole material can quickly return to its original shape after being compressed. At the same time, support plates are used to provide stability and support for the foot, improving the stability of the sole during exercise. There is a certain contradiction between elastic deformation materials and stable support structures. It is impossible to provide sufficient elastic assistance while maintaining sufficient stable support performance. Therefore, the support strength and rebound performance of existing soles cannot be improved at the same time. There is a trade-off between the two. Utility Model Content

[0005] The purpose of this invention is to provide a shoe sole and a shoe containing the sole. By combining a first support member and a second elastic layer, and by creating hollow structures on the inner and outer sides of the hollowed-out forefoot structure of the sole, the support and elastic recovery capabilities of the sole are simultaneously improved. The specific technical solution is as follows:

[0006] A shoe sole includes a first support member and a second elastic layer stacked from top to bottom. The first support member includes a forefoot area with a first hollow area. A first protrusion is provided on the inner side of the first hollow area, and a second protrusion is provided on the outer side of the first hollow area. The end of the first protrusion near the toe and the end of the second protrusion near the toe are connected by a first connecting part. Both the first and second protrusions are arched upwards longitudinally. A first area on the second elastic layer surrounds the first and second protrusions to form a first hollow structure and a second hollow structure, respectively, so as to form a supportive elastic space on the forefoot of the shoe sole.

[0007] Furthermore, it also includes a second support member disposed below the second elastic layer. The second support member includes a first piece and a second piece disposed opposite to each other. The first piece is disposed corresponding to the first hollow structure, and the second piece is disposed corresponding to the second hollow structure. The first piece is disposed closer to the toes of the human foot than the second piece.

[0008] Furthermore, the first piece and the second piece are connected by a second connecting part, and the second connecting part is correspondingly set with the first hollow area of ​​the first support member.

[0009] Furthermore, the width of the second connecting portion gradually narrows from the end connected to the first piece and the other end connected to the second piece in a direction pointing towards the middle of the second connecting portion.

[0010] Furthermore, the width of the first protrusion is greater than the width of the first connecting portion, and the width of the second protrusion is greater than the width of the first connecting portion.

[0011] Furthermore, a second hollow area is formed on the first region of the second elastic layer, the second hollow area is corresponding to the first hollow area, a first recess is provided on the inner side of the second elastic layer, a second recess is provided on the outer side of the second elastic layer, the first recess is corresponding to the first protrusion, and the second recess is corresponding to the second protrusion, so as to increase the height of the first hollow structure and the second hollow structure respectively.

[0012] Furthermore, the first hollow area is positioned relative to the second, third, and fourth metatarsophalangeal joints of the human foot, the first protrusion is positioned close to the first metatarsophalangeal joint of the human foot, the second protrusion is positioned close to the fifth metatarsophalangeal joint of the human foot, and the first connecting portion is positioned relative to the first, second, third, fourth, and fifth toes of the human foot.

[0013] Furthermore, the first support member also includes a midfoot region and a heel region connected in sequence. The inner side of the midfoot region is connected to the end of the first protrusion near the heel, and the outer side of the midfoot region is connected to the end of the second protrusion near the heel. The midfoot region and the forefoot region enclose a first hollow area. The midfoot region includes a reinforcing rib arranged longitudinally. And / or, a third hollow area is formed on the heel region.

[0014] Furthermore, it also includes a first elastic layer and a third support member. The first elastic layer is disposed above the first support member, and the third support member is disposed relative to the outer sidewall of the sole. A third recess with an opening facing the ground is formed on the third support member.

[0015] A type of shoe, including the above-mentioned sole.

[0016] The sole and shoe of this invention have the following advantages:

[0017] 1. By combining the first support member with the second elastic layer, support force is formed on the inner and outer sides of the hollow structure in the forefoot of the sole. The arched structure on the first support member can evenly transmit the pressure it receives downward to the first connector in the forefoot area to provide stable support against lateral pressure. The first hollow structure and the second hollow structure recover and release energy through the deformation space. Thus, while maintaining sufficient stable support performance and flexibility, it provides elastic assistance to the human body and enhances athletic performance.

[0018] 2. A second support component is set below the second elastic layer. The second support component forms an upward support force below the first hollow structure and the second hollow structure respectively, so that the upper and lower sides of the hollow structure bear pressure and have rigid support. There is a deformation space and an elastic material layer in the middle. Combined with the hollow structure on the forefoot to reduce rigidity, the sole can not only provide excellent longitudinal and lateral support to avoid the risk of side rollover, but also provide elastic assistance and sufficient flexibility on the basis of stable support, so as to achieve a simultaneous improvement in the support performance and elastic performance of the sole.

[0019] 3. The first piece and the second piece are connected by the second connecting part, thereby enhancing the overall rigidity of the second support member. The second connecting part is combined with the hollow structure of the forefoot part of the first support member and the second elastic layer to support the lateral force generated during the lateral movement of the human body, avoid adverse lateral bending of the forefoot part of the sole, and enhance the overall stability of the sole. Attached Figure Description

[0020] Figure 1 This is an exploded view of the sole of the shoe according to this utility model.

[0021] Figure 2 This is a three-dimensional schematic diagram of the first support member in the sole of the shoe according to this utility model.

[0022] Figure 3 This is a three-dimensional schematic diagram of the second elastic layer in the sole of the shoe of this utility model.

[0023] Figure 4 This is a schematic diagram of the outer side of the sole of the shoe according to this utility model.

[0024] Figure 5 This is a top view of the second support member in the sole of the shoe according to this utility model.

[0025] Figure 6 This is a schematic diagram of the outer side of the shoe of this utility model.

[0026] Figure 7 A comprehensive scoring radar chart for comparison and examples. Detailed Implementation

[0027] To better understand the purpose, structure, and function of this utility model, the sole of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 4 As shown, the sole includes a first support member 300 and a second elastic layer 400 stacked from top to bottom. The outer contour of the first support member 300 is basically consistent with the outer contour of the human foot. It includes a forefoot area 301, a midfoot area 302 and a heel area 303 connected in sequence. A first hollow area 304 is provided near the middle of the forefoot area 301. Correspondingly, the second elastic layer 400 includes a first area 401, a second area and a third area connected in sequence. A second hollow area 402 is formed on the first area 401 of the second elastic layer 400. The second hollow area 402 is corresponding to the first hollow area 304. By setting the first hollow area 304 and the second hollow area 402, the torsional strength and hardness of the sole are reduced, and the restriction on the movement of the metatarsophalangeal joint of the forefoot is reduced. At the same time, the side of the first support member 300 and the second elastic layer 400 near the toe still provides support to the front side of the forefoot.

[0029] The side of the sole body closest to the inside of the human foot is defined as the inner side of the sole body, and the side of the sole body closest to the outside of the human foot is defined as the outer side of the sole body. A first protrusion 305 is provided at the end of the first hollow area 304 closest to the inner side of the sole, and a second protrusion 306 is provided at the end of the first hollow area 304 closest to the outer side of the sole. The first protrusion 305 is positioned relative to the first metatarsophalangeal joint of the human foot, and the second protrusion 306 is positioned relative to the fifth metatarsophalangeal joint of the human foot. The above relative positioning includes both completely relative positioning and approximately relative positioning with a slight offset. The direction of the line connecting the toe and the heel is defined as longitudinal. Both the first protrusion 305 and the second protrusion 306 arch towards the direction of the human foot in the longitudinal direction. When the human body pushes off the ground laterally, the arched position can effectively distribute and transmit the concentrated vertical load evenly downwards. Thus, the overall structure of the forefoot area 301 of the first support member 300 provides support for lateral pressure and improves the support strength.

[0030] The first protrusion 305 near the toe and the second protrusion 306 near the toe are connected by a first connecting part 307. The first connecting part 307 is corresponding to the first, second, third, fourth, and fifth toes of the human foot to distribute lateral pressure and pressure during the push-off phase to the toe area, improving the support performance of the forefoot. The inner side of the midfoot region 302 is connected to the end of the first protrusion 305 near the heel, and the outer side of the midfoot region 302 is connected to the end of the second protrusion 306 near the heel. Thus, the midfoot region 302 and the forefoot region 301 enclose each other to form an approximately circular first hollow. Zone 304 is positioned opposite to the second, third, and fourth metatarsophalangeal joints of the human foot. This relative positioning includes both a completely opposite positioning and a roughly opposite positioning with a slight offset. These second, third, and fourth metatarsophalangeal joints are key parts of the foot that propel the body forward during the walking or running cycle. By setting the first hollow zone 304 in this area, the restrictions imposed by the first support member 300 on these key parts can be reduced, allowing for more natural bending movements. This helps to mimic the natural dynamics of walking or running barefoot, thereby improving comfort and athletic performance.

[0031] The inner side of the first region 401 on the second elastic layer 400 is positioned opposite to the first protrusion 305, forming a first hollow structure. The outer side of the first region 401 on the second elastic layer 400 is positioned opposite to the second protrusion 306, forming a second hollow structure 403. If the line connecting the inner and outer sides of the sole is defined as transverse, then the first and second hollow structures 403 are transversely connected, with the second hollow area 402 positioned between them. The first and second hollow structures 403 can undergo elastic deformation when the forefoot of the sole is compressed. Simultaneously, the compression deformation of the first and second hollow structures 403 helps reduce the pressure on the dorsum of the foot and the tibialis anterior muscle on the front of the lower leg upon landing, thereby increasing shock absorption and rebound performance and providing better protection and support for the wearer. Furthermore, the corresponding arrangement of the second hollow area 402 and the first hollow area 304 also helps improve the flexibility of the second, third, and fourth metatarsophalangeal joints of the foot.

[0032] By combining the above-described structures of the first support member 300 and the second elastic layer 400, support force is formed on the inner and outer sides of the hollow structure in the forefoot of the sole. During the push-off phase, the arched structure on the first support member 300 evenly transmits the pressure it receives downward to other positions in the forefoot area 301. In particular, the first connector provides stable support against lateral pressure by connecting the first protrusion 305 and the second protrusion 306. The first hollow structure and the second hollow structure 403, while maintaining the above-described structures, recover and release the energy generated when the wearer's forefoot lands through the deformation space they provide. Thus, while maintaining sufficient stable support performance and flexibility, they provide elastic assistance to the human body and enhance athletic performance.

[0033] Preferred, such as Figure 1 , Figure 4 and Figure 5 As shown, the sole also includes a second support member 500 disposed below the second elastic layer 400. The second support member 500 includes a first piece 501 and a second piece 502 disposed opposite to each other. The first piece 501 is disposed corresponding to the first hollow structure, and the second piece 502 is disposed corresponding to the second hollow structure 403. Thus, an upward supporting force is formed below the first hollow structure and the second hollow structure 403 respectively. Consequently, the first support member 300, the second elastic layer 400 and the second support member 500 form a composite hollow structure on the inner and outer sides of the forefoot of the sole, respectively. This allows the upper and lower sides of the hollow structure to have rigid support, while the middle has a deformation space and an elastic material layer. Combined with the hollow structure on the forefoot to reduce rigidity, the sole can not only provide sufficient longitudinal and lateral support to avoid the risk of rollover, but also provide elastic assistance and sufficient flexibility on the basis of stable support, thereby achieving a simultaneous improvement in the support performance and elastic performance of the sole.

[0034] Furthermore, the first piece 501 and the second piece 502 are designed according to the shape of the human foot. The first piece 501 corresponds to the first metatarsophalangeal joint of the human foot, and the second piece 502 corresponds to the fifth metatarsophalangeal joint of the human foot. The first piece 501 is positioned closer to the toe of the human foot than the second piece 502, which helps to support the key force on the forefoot area 301, allowing the first hollow structure and the second hollow structure 403 above it to be fully compressed. In order to adapt to the different force positions on the inner and outer sides during the push-off phase, the positions of the first piece 501 and the second piece 502 are set differently to provide a powerful rebound and support effect.

[0035] Furthermore, the first piece 501 and the second piece 502 are connected by a second connecting part 503. The second connecting part 503 connects the first piece 501 and the second piece 502, making the second support member 500 a one-piece flat structure, thereby enhancing the overall rigidity of the second support member 500. The second connecting part 503 is correspondingly arranged with the first hollow area 304 of the first support member 300, thus combining with the hollow structure of the forefoot portion of the first support member 300 and the second elastic layer 400 to support the lateral forces generated during the lateral movement of the human body, avoiding unfavorable lateral bending of the forefoot portion of the sole and enhancing the overall stability of the sole. In addition, the flat structure can provide uniform support for the second elastic layer 400, reducing instability caused by uneven ground or different foot landing angles.

[0036] Preferably, the width of the second connecting portion 503 gradually narrows from the end connected to the first piece 501 and the other end connected to the second piece 502 towards the middle of the second connecting portion 503. This increases the structural strength at both ends of the second connecting portion 503, providing better lateral support. Simultaneously, the narrowing in the middle helps maintain the natural flexion of the metatarsophalangeal joint in the forefoot of the sole, improving comfort and athletic efficiency. Furthermore, this structure helps to concentrate and evenly distribute the stress on the second support member 500. The wider ends allow for better pressure dispersion under stress, while the narrower middle section acts as a "hub," concentrating pressure where needed and avoiding unnecessary energy loss.

[0037] Furthermore, such as Figure 2 As shown, the distance between the two ends of the first protrusion 305 in the lateral direction is defined as its width, the distance between the two ends of the second protrusion 306 in the lateral direction is defined as its width, and the distance between the two ends of the first connecting part 307 in the longitudinal direction is defined as its width. The width of the first protrusion 305 is greater than the width of the first connecting part 307, and the width of the second protrusion 306 is greater than the width of the first connecting part 307. By increasing the width of the inner and outer protrusions of the first hollow part, a larger support area can be provided for the foot. Especially when making lateral movements or bearing lateral forces, it helps to improve the lateral stability of the sole and reduce the risk of unnecessary slippage or sprains when the foot changes direction quickly or stops suddenly. The narrower width of the first connecting part 307 provides a more concentrated power transmission path, which allows the human body to more effectively convert pressure into forward momentum when pushing off the ground, which helps to improve the energy utilization efficiency when running or jumping, thereby improving athletic performance.

[0038] Furthermore, such as Figure 2 and Figure 3As shown, a first recess 404 is provided on the inner side of the second elastic layer 400, and a second recess 405 is provided on the outer side of the second elastic layer 400. The first recess 404 is provided in correspondence with the first protrusion 305, and the second recess 405 is provided in correspondence with the second protrusion 306. This increases the height of the first hollow structure and the second hollow structure 403 respectively, thereby making the longitudinal cross-section of the hollow structure approximately flattened round or spindle-shaped. This helps to enhance the deformation and recovery ability of the hollow structure and improve the rebound assist effect.

[0039] Furthermore, the inner side of the midfoot region 302 of the first support member 300 is connected to the end of the first protrusion 305 near the heel, and the outer side of the midfoot region 302 is connected to the end of the second protrusion 306 near the heel. The midfoot region 302 and the forefoot region 301 enclose to form a first hollow area 304. A reinforcing rib 308 is provided longitudinally on the midfoot region 302 to enhance the overall torsional rigidity of the sole, reduce the risk of excessive pronation or supination, and prevent sprains and other foot injuries. A third hollow area 309 is formed on the heel region 303 to optimize the structure of the first support member 300, so that it can reduce weight while maintaining sufficient stability. The third hollow area 309 corresponds to the third region to give full play to the cushioning performance of the second elastic layer 400.

[0040] Preferred, such as Figure 1 and Figure 6 As shown, the sole also includes a first elastic layer 200 and a soft third support member 100. The first elastic layer 200 is positioned above the first support member 300 to further enhance the sole's rebound performance and wearing comfort, thus forming a layered composite structure. This facilitates manufacturing processes and provides better foot comfort and force feedback. The third support member 100 is positioned relative to the outer sidewall of the forefoot of the sole. A third recess with an opening facing the ground is formed on the third support member 100. The third recess is positioned corresponding to the second hollow structure 403 to avoid the deformation space of the hollow structure. By setting the third support member 100, lateral support performance is enhanced, avoiding the risk of rollover or sprain due to excessive displacement of the foot inside the shoe during high-intensity lateral movements.

[0041] In addition, the sole also includes an outsole 600 located below the second support member 500. The outsole 600 is made of a thinner thickness to effectively reduce the thickness and weight of the sole, meet the requirements of lightweight shoes, and provide the wearer with a better wearing experience. At the same time, the inner and outer sides of the outsole 600 are provided with a partial upturn structure. The upturn structure extends above the first elastic layer 200 and is glued on to further increase the overall torsional stiffness of the shoe and further reduce the risk of lateral rollover and excessive torsion during exercise.

[0042] The first and second elastic layers of this invention are manufactured using supercritical foaming or chemical foaming processes. They are made from one, two, or more of the following materials: nylon elastomer, polyurethane (thermoplastic polyurethane (including aromatic and aliphatic types), cast polyurethane, and compounded polyurethane), thermoplastic polyether ester elastomer, ethylene-octene copolymer, ethylene-octene block copolymer, ethylene-vinyl acetate copolymer, styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene-styrene block copolymer, high-styrene rubber, brominated butyl rubber, cis-butadiene rubber, silicone rubber, ethylene propylene diene monomer (EPDM) rubber, natural rubber, isoprene rubber, nitrile rubber, and chloroprene rubber. These materials are characterized by a hardness of 40-45C and a density of 0.12-0.18 g / cm³, exhibiting lightweight, softness, and elasticity. During movement, they provide excellent shock absorption and rebound for the midfoot and forefoot areas of the human foot, and the shape of the elastic layer conforms to the shape of the support layer. In this embodiment, the density of the first and second elastic layers is 0.12-0.14 g / cm3, the Shore C hardness is 42±3, the energy return is 80%, and the peak acceleration is 10.1.

[0043] The first and second support components in this invention are support plates made of rigid materials with a Shore D hardness of 50-85. The materials include at least one of phenolic resin or thermoplastic resin (thermoplastic polyurethane, polycarbonate, polymethyl methacrylate, nylon elastomer, polyether ester elastomer, polyketone, polyetheretherketone, polyetherketoneketone, polyethersulfone, polyphenylene sulfide, ABS (acrylonitrile-butadiene-styrene copolymer), or composite materials formed with inorganic fillers, long fibers, or short fibers (not limited to carbon fiber, glass fiber, aramid, ultra-high molecular weight polyethylene fiber, polyaryl ester fiber, basalt fiber, polyester fiber, etc.). In this embodiment, the first support component is a TPU composite material with a total thickness of 1.0-1.6 mm, and the second support component is also a TPU composite material with a total thickness of 0.6 mm; both are made of the same material.

[0044] The outsole material of this utility model is styrene-butadiene rubber, brominated butyl rubber, cis-butadiene rubber, silicone rubber, ethylene propylene diene monomer (EPDM) rubber, natural rubber, isoprene rubber, nitrile rubber, chloroprene rubber, nylon elastomer, polyurethane (thermoplastic polyurethane (including aromatic and aliphatic types), cast polyurethane, compounded polyurethane), thermoplastic polyether ester elastomer, ethylene-octene copolymer, ethylene-octene block copolymer, ethylene-vinyl acetate copolymer, styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene-styrene block copolymer, high-styrene rubber, or one, two, or more of these materials to form one or more rubber or elastomer materials.

[0045] This utility model also provides a shoe, including the sole described above.

[0046] Using a sample shoe made without the aforementioned structure as a comparative example, laboratory biomechanical and mechanical tests were conducted to verify its performance against the embodiment of this utility model shoe. The forefoot rebound performance (energy rebound) of this embodiment was 66.90%, and the forefoot flexural stiffness was 0.902 Nm / Deg. Specific comparative data are shown in the table below:

[0047] (1) Biomechanical test data (standardized)

[0048]

[0049] (2) Mechanical test data

[0050]

[0051] (3) Comprehensive score radar chart as shown Figure 7 As shown.

[0052] The above biomechanical test, mechanical test results, and comprehensive score radar chart all indicate that the embodiment of the shoe of this utility model is superior to the comparative example in terms of anti-slip, rebound, stability, and lightweight performance. It can provide sufficient elastic assistance while maintaining sufficient stable support performance, and achieves the effect of simultaneously improving support strength and rebound performance.

[0053] The sole and shoe of this invention have the following advantages:

[0054] 1. By combining the first support member with the second elastic layer, support force is formed on the inner and outer sides of the hollow structure in the forefoot of the sole. The arched structure on the first support member can evenly transmit the pressure it receives downward to the first connector in the forefoot area to provide stable support against lateral pressure. The first hollow structure and the second hollow structure recover and release energy through the deformation space. Thus, while maintaining sufficient stable support performance and flexibility, it provides elastic assistance to the human body and enhances athletic performance.

[0055] 2. A second support component is set below the second elastic layer. The second support component forms an upward support force below the first hollow structure and the second hollow structure respectively, so that the upper and lower sides of the hollow structure bear pressure and have rigid support. There is a deformation space and an elastic material layer in the middle. Combined with the hollow structure on the forefoot to reduce rigidity, the sole can not only provide excellent longitudinal and lateral support to avoid the risk of side rollover, but also provide elastic assistance and sufficient flexibility on the basis of stable support, so as to achieve a simultaneous improvement in the support performance and elastic performance of the sole.

[0056] 3. The first piece and the second piece are connected by the second connecting part, thereby enhancing the overall rigidity of the second support member. The second connecting part is combined with the hollow structure of the forefoot part of the first support member and the second elastic layer to support the lateral force generated during the lateral movement of the human body, avoid adverse lateral bending of the forefoot part of the sole, and enhance the overall stability of the sole.

[0057] The terms “above,” “below,” and “within” as used above include the number itself; the terms “exceeding” and “excluding” do not include the number itself.

[0058] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0059] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

Claims

1. A shoe sole, characterized in that, The shoe includes a first support member and a second elastic layer stacked from top to bottom. The first support member includes a forefoot area with a first hollow area. A first protrusion is provided on the inner side of the first hollow area, and a second protrusion is provided on the outer side of the first hollow area. The end of the first protrusion near the toe and the end of the second protrusion near the toe are connected by a first connecting part. Both the first and second protrusions are arched upwards in the longitudinal direction. The first area on the second elastic layer is enclosed by the first and second protrusions to form a first hollow structure and a second hollow structure, so as to form a supportive elastic space on the forefoot of the sole.

2. The sole as described in claim 1, characterized in that, It also includes a second support member disposed below the second elastic layer. The second support member includes a first piece and a second piece disposed opposite to each other. The first piece is disposed corresponding to the first hollow structure, and the second piece is disposed corresponding to the second hollow structure. The first piece is disposed closer to the toes of the human foot than the second piece.

3. The sole as described in claim 2, characterized in that, The first piece and the second piece are connected by a second connecting part, and the second connecting part is correspondingly set with the first hollow area of ​​the first support member.

4. The sole as described in claim 3, characterized in that, The width of the second connecting part gradually narrows from the end connected to the first piece and the other end connected to the second piece in the direction pointing towards the middle of the second connecting part.

5. The sole as described in any one of claims 1 to 4, characterized in that, The width of the first protrusion is greater than the width of the first connecting part, and the width of the second protrusion is greater than the width of the first connecting part.

6. The sole as described in any one of claims 1 to 4, characterized in that, A second hollow area is formed on the first region of the second elastic layer. The second hollow area is corresponding to the first hollow area. A first recess is provided on the inner side of the second elastic layer, and a second recess is provided on the outer side of the second elastic layer. The first recess is corresponding to the first protrusion, and the second recess is corresponding to the second protrusion, so as to increase the height of the first hollow structure and the second hollow structure respectively.

7. The sole as described in any one of claims 1 to 4, characterized in that, The first hollow area is positioned relative to the second, third, and fourth metatarsophalangeal joints of the human foot. The first protrusion is positioned close to the first metatarsophalangeal joint of the human foot. The second protrusion is positioned close to the fifth metatarsophalangeal joint of the human foot. The first connecting portion is positioned relative to the first, second, third, fourth, and fifth toes of the human foot.

8. The sole as described in any one of claims 1 to 4, characterized in that, The first support member also includes a midfoot region and a heel region connected in sequence. The inner side of the midfoot region is connected to the end of the first protrusion near the heel, and the outer side of the midfoot region is connected to the end of the second protrusion near the heel. The midfoot region and the forefoot region enclose a first hollow area. The midfoot region includes a reinforcing rib arranged longitudinally. And / or, a third hollow area is formed on the heel region.

9. The sole as described in claim 8, characterized in that, It also includes a first elastic layer and a third support member. The first elastic layer is disposed above the first support member, and the third support member is disposed relative to the outer sidewall of the sole. A third recess with an opening facing the ground is formed on the third support member.

10. A shoe, characterized in that, The sole includes any one of claims 1 to 9 above.

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