A type of sports shoe sole

Abstract

This utility model belongs to the field of footwear manufacturing technology, specifically referring to a sports shoe sole; it includes a layered outer layer, a mid-layer, and an inner layer, and further includes: a forefoot widening structure fixed to the forefoot area of ​​the outer layer, including a first widening portion extending inward and a second widening portion extending outward; rib-shaped combination units arranged only at intervals in the forefoot to arch area of ​​the mid-layer, including a forward sloping portion inclined towards the toe and a rear sloping portion inclined towards the heel, the forward and rear sloping portions being connected in pairs to form a V-shaped structure; a heel covering structure located at the edge of the heel area of ​​the outer layer, extending upward to form a U-shaped covering portion; and a conical cushioning hole penetrating the inner layer and mid-layer along the layering direction, located within the enclosed area of ​​the U-shaped covering portion. This utility model improves propulsion efficiency through the forefoot widening structure working in conjunction with the rib-shaped combination units, and enhances cushioning performance through the heel covering structure and the conical cushioning hole, thus simultaneously optimizing forefoot propulsion and heel cushioning performance in a single sole structure.

Description

Technical Field

[0001] This utility model belongs to the field of footwear manufacturing technology, and specifically refers to a sports shoe sole. Background Technology

[0002] As a core component of sports equipment, the sole of an athletic shoe directly affects the efficiency of power transmission and impact protection during exercise. Especially in high-intensity sports such as running and jumping, the sole needs to provide stable push-off propulsion in the forefoot area, while effectively cushioning energy at the landing point to reduce the risk of sports injuries.

[0003] Current athletic shoe sole designs generally suffer from a difficulty in balancing propulsion and cushioning performance: some solutions improve rebound efficiency by reinforcing the rigid structure of the forefoot, but this results in insufficient cushioning in the heel area; other solutions improve cushioning by adding shock-absorbing modules to the heel, but the softening of the forefoot material weakens the push-off response speed. Such designs lack a mechanical linkage mechanism between the forefoot and rearfoot areas, causing a break in the energy transfer chain and forcing users to make trade-offs between propulsion and protection. Utility Model Content

[0004] This invention improves propulsion efficiency by widening the forefoot structure in conjunction with rib-shaped combination units, and enhances cushioning performance by utilizing the heel covering structure and tapered buffer holes, thereby alleviating the problem of difficulty in coordinating propulsion function and cushioning performance.

[0005] The purpose of this utility model is achieved as follows: a sports shoe sole, comprising a layered outer bottom layer, a middle bottom layer, and an inner bottom layer, and further comprising:

[0006] The forefoot widening structure is fixed to the forefoot area of ​​the outer bottom layer, including a first widening portion extending inward and a second widening portion extending outward;

[0007] The rib-shaped combination units are arranged only at intervals in the forefoot area to the arch area of ​​the mid-bottom layer, including a front slope that slopes towards the toe and a rear slope that slopes towards the heel, and the front slope and the rear slope are connected in pairs to form a V-shaped structure.

[0008] The heel covering structure is located at the edge of the heel area of ​​the outer bottom layer and extends upward to form a U-shaped covering part;

[0009] The tapered buffer hole penetrates the inner bottom layer and the middle bottom layer along the stacking direction and is located within the enclosed area of ​​the U-shaped covering part.

[0010] The present invention is further provided that the lower surface of the heel covering structure is provided with transverse anti-slip stripes, and the stripes are evenly arranged in the left-right direction.

[0011] The present invention is further provided that the lower surface of the forefoot widening structure is provided with a wave-shaped anti-slip texture.

[0012] The present invention is further provided that the lower surface of the forefoot widening structure is provided with a wave-shaped anti-slip texture.

[0013] The present invention is further configured such that the rib-shaped assembly unit is integrally formed using foamed material, and the foam pore diameter of the front inclined portion is smaller than that of the rear inclined portion.

[0014] The present invention is further configured such that the thickness of the front inclined portion is less than that of the rear inclined portion.

[0015] The present invention is further configured such that the lower surface of the outer bottom layer is provided with pressure guiding texture, including:

[0016] Heel guide lines are located below the heel covering structure.

[0017] The transition lines of the foot arch are located in the arch area;

[0018] The forefoot is divided into guide lines, corresponding to the thumb and little finger respectively.

[0019] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:

[0020] 1. By extending the first and second widening sections inward and outward, the forefoot contact area is increased, the weight pressure is distributed, and the propulsion force and stability are improved.

[0021] 2. A V-shaped structure is formed by the front and rear inclined sections. The front inclined section has a small aperture to provide propulsion, while the rear inclined section has a large aperture to absorb and buffer, thus balancing the contradiction between the two.

[0022] 3. The design of the U-shaped wrapping part restricts heel rollover, the anti-slip stripes on the lower surface increase friction, and the conical buffer holes absorb the impact of landing, thus improving heel stability. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention from the first direction;

[0024] Figure 2 This is a three-dimensional structural diagram of the second direction of this utility model;

[0025] Figure 3 This is a utility model Figure 1 A schematic diagram of the cross-sectional structure.

[0026] The diagram is labeled as follows: 1. Outer bottom layer; 2. Middle bottom layer; 3. Inner bottom layer; 4. Forefoot widening structure; 40. First widening section; 41. Second widening section; 5. Rib-shaped combination unit; 50. Forward slope section; 51. Rear slope section; 6. Heel covering structure; 60. U-shaped covering section; 7. Conical cushioning hole; 8. Pressure guide ridge; 80. Heel guide ridge; 81. Arch transition ridge; 82. Forefoot dividing guide ridge. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :

[0028] Example 1:

[0029] This embodiment provides a sports shoe sole, including a layered outer bottom layer 1, a middle bottom layer 2, and an inner bottom layer 3, and further comprising:

[0030] The forefoot widening structure 4 is fixed to the forefoot area of ​​the outer bottom layer 1, and includes a first widening portion 40 extending inward and a second widening portion 41 extending outward;

[0031] The rib-shaped combination unit 5 is arranged only at intervals in the forefoot area to the arch area of ​​the middle and bottom layer 2, including a front slope 50 inclined towards the toe and a rear slope 51 inclined towards the heel. The front slope 50 and the rear slope 51 are connected in pairs to form a V-shaped structure.

[0032] The heel covering structure 6 is located at the edge of the heel area of ​​the outer bottom layer 1 and extends upward to form a U-shaped covering part 60;

[0033] The tapered buffer hole 7 penetrates the inner bottom layer 3 and the middle bottom layer 2 along the stacking direction and is located within the enclosed area of ​​the U-shaped covering part 60.

[0034] The outermost layer 1 is in direct contact with the ground, providing anti-slip, wear-resistant, and supportive properties. It is the outermost structure of the sole. Located at the bottom of the sole, the outermost layer 1 is in direct contact with the ground and is typically made of rigid materials such as wear-resistant rubber, foamed EVA, or polyurethane.

[0035] The middle layer 2 is located between the outer layer 1 and the inner layer 3, providing cushioning, shock absorption and support, and absorbing the impact force during movement.

[0036] The inner layer 3 is in direct contact with the soles of the feet, providing comfort, sweat absorption, and support, while cushioning pressure on the feet. The inner layer 3 is typically made of soft foam materials such as latex or memory foam, or breathable fabrics.

[0037] The widened forefoot structure 4 is used to increase the forefoot contact area, distribute weight pressure, improve propulsion and stability when pushing off the ground, and prevent forefoot rollover.

[0038] The first widening portion 40 extends inward toward the big toe, enhancing support on the inner forefoot and is suitable for correcting pronation gait or collapsed arches. It also distributes pressure on the ball of the big toe, reducing localized friction and fatigue during exercise. The cross-sectional shape of the first widening portion 40 is typically fan-shaped or trapezoidal, extending inward from the forefoot edge of the outer bottom layer 1. The first widening portion 40 can be integrally molded with the outer bottom layer 1 or fixed with a high-strength adhesive.

[0039] The second widening portion 41 extends outward toward the little toe, enhancing lateral forefoot support and is suitable for correcting pronation gait or high arch problems. It also provides lateral stability, preventing lateral displacement or sprains during exercise. The second widening portion 41 is symmetrically designed to the first widening portion 40, in a fan or trapezoidal shape, extending outward from the forefoot edge of the outer bottom layer 1. The second widening portion 41 can be integrally molded with the outer bottom layer 1 or fixed with a high-strength adhesive.

[0040] The rib-shaped combination unit 5 provides propulsion when pushing off the ground and absorbs the impact on the arch area when landing, thus balancing the needs of propulsion and cushioning through the mechanical properties of the V-shaped structure.

[0041] The forefoot slope 50 provides rigid support during the push-off phase, converting vertical pressure into forward thrust, reducing energy loss when the forefoot leaves the ground, and improving propulsion efficiency. The forefoot slope 50 is a rib-like structure sloping towards the toe, forming an acute angle of 30°-60° with the horizontal. Its cross-section can be rectangular or trapezoidal, with a wider base to increase support area. The forefoot slope 50 is located at the front end of each rib-like assembly unit 5, close to the forefoot metatarsal region, and is integrally formed with the rearfoot slope 51, together forming a V-shaped apex. The forefoot slope 50 can be connected to the upper surface of the midsole 2 via heat fusion or other methods.

[0042] The rear slope 51 absorbs impact force during landing, cushions arch pressure, and provides elastic recovery to aid energy recovery during the gait cycle. The rear slope 51 is a rib-like structure sloping towards the heel, forming an acute angle of 30°-60° with the horizontal direction, and its cross-section is rectangular or trapezoidal. The rear slope 51 is located at the rear end of each rib-like assembly unit 5, close to the inner side of the arch. The rear slope 51 is integrally formed with the front slope 50 and connected to the upper surface of the midsole 2 by means of heat fusion or other methods.

[0043] The heel wrapping structure 6 is used to wrap the edge of the heel, restricting lateral displacement upon landing and improving heel stability, while also working with the cushioning holes to absorb impact.

[0044] The U-shaped covering part 60 provides three-sided wrap-around support to prevent the heel from shifting inwards or outwards upon landing. The U-shaped covering part 60 is U-shaped or horseshoe-shaped, with its opening facing the heel. The U-shaped covering part 60 is integrally formed with the heel covering structure 6, which covers the outer edge of the heel area of ​​the outer bottom layer 1. The U-shaped covering part 60 extends upwards from the heel covering structure 6 and covers the outer edge of the heel area of ​​the middle bottom layer 2.

[0045] The tapered cushioning hole 7 is used to absorb the impact of heel landing, while reducing the weight of the sole. The tapered cushioning hole 7 runs through the inner layer 3 and the middle layer 2 along the stacking direction of the sole, and is located in the U-shaped enclosure area of ​​the heel covering structure 6, directly opposite the heel bone landing position.

[0046] In this embodiment, when the sports shoe sole is working, the first widened portion 40 and the second widened portion 41 of the forefoot widening structure 4 extend inward and outward to increase the forefoot ground contact area, providing a stable support base for propulsion. The front slope portion 50 of the rib-shaped combination unit 5 tilts towards the toe to convert the push-off force into forward propulsion force, and the rear slope portion 51 tilts towards the heel to absorb the impact of the arch. The U-shaped covering portion 60 of the heel covering structure 6 restricts the lateral movement of the heel. The conical buffer hole 7 penetrates the inner bottom layer 3 and the middle bottom layer 2 and is located in the U-shaped enclosure area. Through the structural design, the heel is cushioned when it lands. With the coordinated action of each component, the transmission of force is enhanced during propulsion, and the impact is cushioned when landing.

[0047] Example 2:

[0048] This embodiment provides a sports shoe sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] The lower surface of the heel covering structure 6 is provided with transverse anti-slip stripes, which are evenly arranged in the left-right direction.

[0050] In this embodiment, the lower surface of the heel covering structure 6 is provided with transverse anti-slip stripes evenly arranged in the left-right direction. The cross-section of these stripes is mostly trapezoidal or semi-circular protrusions. By increasing the contact friction between the heel and the ground, lateral slippage upon landing is effectively prevented, ensuring stable grounding of the heel to optimize the cushioning effect. At the same time, the transverse layout of the stripes can guide the uniform transmission of the horizontal thrust of the heel when pushing off the ground, avoiding the loss of propulsion force due to slippage. Thus, while improving the reliability of landing cushioning, the efficiency of force transmission during the propulsion phase is ensured, helping to solve the problem of coordinated balance between propulsion and cushioning.

[0051] Example 3:

[0052] This embodiment provides a sports shoe sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] The diameter of the tapered buffer hole 7 gradually increases from the inner bottom layer 3 toward the outer bottom layer 1.

[0054] In this embodiment, the diameter of the tapered buffer hole 7 gradually expands from the inner bottom layer 3 towards the outer bottom layer 1. This top-narrow, bottom-wide structural design allows the smaller diameter end of the buffer hole, closer to the foot, to provide initial support to ensure stability during propulsion and prevent excessive foot sinking from affecting the force of pushing off the ground when under force. The larger diameter end, farther from the foot, absorbs the impact of landing through a larger deformation space, resulting in a more significant cushioning effect. This design, through the gradient change in hole diameter, balances support rigidity during propulsion and enhances cushioning performance upon landing, effectively balancing the functional contradictions between propulsion and cushioning, and achieving synergistic optimization of both.

[0055] Example 4:

[0056] This embodiment provides a sports shoe sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] The lower surface of the forefoot widening structure 4 is provided with a wave-shaped anti-slip texture.

[0058] In this embodiment, the lower surface of the forefoot widening structure 4 is provided with a wave-shaped anti-slip pattern. The undulating wave-like protrusions increase the contact area between the forefoot and the ground. During push-off, the lateral grooves of the pattern create friction with the ground, preventing forefoot slippage and ensuring efficient transmission of propulsion force. Simultaneously, the wave-shaped structure absorbs some of the forefoot impact through deformation upon landing, avoiding insufficient cushioning due to rigid contact. This design, through the geometric shape of the pattern, enhances the stability of force transmission during propulsion and assists in cushioning forefoot impact during landing, helping to alleviate the conflict between propulsion and cushioning functions and improving the overall balance of the sole's performance.

[0059] Example 5:

[0060] This embodiment provides a sports shoe sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] The rib-shaped assembly unit 5 is integrally molded from foamed material, and the foam pore diameter of the front inclined portion 50 is smaller than that of the rear inclined portion 51.

[0062] In this embodiment, the rib-shaped assembly unit 5 is integrally molded from foamed material, with the front slope 50 having a smaller pore size than the rear slope 51. Through the differentiated design of the material's microstructure, the front slope 50, due to its smaller pore size, has higher rigidity, providing rigid support during push-off to efficiently convert propulsive force and avoid excessive structural deformation leading to force loss. The rear slope 51, with its larger pore size, has greater elasticity, absorbing the impact of the arch of the foot through the compression of larger foam pores upon landing, thus mitigating ground reaction force. This design utilizes the gradient difference in foam pore size to ensure efficient force transmission during the propulsion phase with a rigid structure and enhance shock absorption performance during the cushioning phase with a soft structure, effectively reconciling the contradictory requirements of propulsion and cushioning on material properties and achieving functional balance in dynamic gait.

[0063] Example 6:

[0064] This embodiment provides a sports shoe sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] The thickness of the front inclined portion 50 is less than that of the rear inclined portion 51.

[0066] In this embodiment, the front slope 50 is thinner than the rear slope 51. This difference in structural thickness allows the thinner front slope 50 to have higher rigidity during push-off, enabling it to more directly convert push-off force into forward propulsion and avoiding lag in force generation caused by excessive thickness. The thicker rear slope 51 provides greater elastic deformation space upon landing, absorbing arch impact through material compression. This design utilizes the thickness difference to create a "hard front, soft rear" mechanical response characteristic. During the propulsion phase, the thin structure ensures efficient force transmission, while the thick structure enhances shock absorption during the cushioning phase. This effectively balances the conflicting demands of propulsion and cushioning on structural strength, achieving dynamic coordination of support and energy absorption during the gait cycle.

[0067] Example 7:

[0068] This embodiment provides a sports shoe sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] The lower surface of the outer bottom layer 1 is provided with pressure guiding textures 8, including:

[0070] The heel guide pattern 80 is located below the heel covering structure 6;

[0071] Foot arch transition crease 81, located in the foot arch area;

[0072] The forefoot has 82 creases, corresponding to the thumb and little finger respectively.

[0073] The heel guide tread 80 guides the weight of the heel to the arch direction when the heel lands through the direction of the tread and the height difference. Together with the heel wrapping structure 6, it restricts heel rollover and ensures that the impact of landing is transmitted vertically to the conical buffer hole 7, avoiding buffer failure caused by lateral force. At the same time, the guiding effect of the tread can optimize the force starting point at the beginning of the push-off, providing a stable force transmission basis for the propulsion phase and balancing the initial force distribution of landing cushioning and push-off propulsion.

[0074] The design of the transition tread pattern 81 conforms to the natural curvature of the arch. As weight is transferred from the heel to the forefoot, the tread pattern guides the force to be evenly distributed to both sides of the arch, avoiding insufficient cushioning caused by local pressure concentration. At the same time, the rigid structure of the transition tread pattern can assist the rear oblique part 51 of the rib-shaped combination unit 5 in supporting the arch, reducing the loss of propulsion force due to arch collapse during the propulsion phase, and achieving a smooth transition between cushioning support and propulsion force transmission.

[0075] The forefoot's 82 tread patterns correspond to the force points of the thumb and little finger, respectively. The groove design of the tread patterns enhances the friction between the forefoot and the ground, guiding the propulsive force from the inner and outer sides of the forefoot to be concentrated and transmitted forward during push-off. This, combined with the widened forefoot structure 4, improves push-off efficiency. At the same time, the flexible tread patterns can absorb the impact of the forefoot through slight deformation upon landing, avoiding the lack of cushioning caused by rigid contact of the forefoot. Thus, it strengthens force guidance during the propulsion phase and assists the forefoot in cushioning during the landing phase, alleviating the functional conflict between the two.

[0076] The Pressure Guiding Tread 8 employs a segmented design—"heel guidance, arch transition, and forefoot distribution"—to simulate the natural weight transfer path from heel to forefoot during human gait. Upon landing, it guides the impact to the cushioning structure in an orderly manner, reducing energy loss; during push-off, it enhances the linear transmission of propulsive force, preventing a decrease in propulsive efficiency due to force dispersion. This design, through the geometric guidance of the tread pattern, dynamically coordinates the force transmission needs of cushioning and propulsion during the gait cycle, achieving a balanced optimization of both.

[0077] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A sports shoe sole, comprising a layered outer bottom layer (1), a middle bottom layer (2), and an inner bottom layer (3), characterized in that... It also includes: The forefoot widening structure (4) is fixed to the forefoot area of ​​the outer bottom layer (1) and includes a first widening portion (40) extending inward and a second widening portion (41) extending outward. The rib-shaped combination unit (5) is arranged only at intervals in the forefoot area to the arch area of ​​the mid-bottom layer (2), including a front slope (50) inclined towards the toe and a rear slope (51) inclined towards the heel, the front slope (50) and the rear slope (51) are connected in pairs to form a V-shaped structure; The heel covering structure (6) is located at the edge of the heel area of ​​the outer bottom layer (1) and extends upward to form a U-shaped covering part (60). The conical buffer hole (7) penetrates the inner bottom layer (3) and the middle bottom layer (2) along the stacking direction and is located within the enclosed area of ​​the U-shaped covering part.

2. The sports shoe sole according to claim 1, characterized in that, The lower surface of the heel covering structure (6) is provided with transverse anti-slip stripes, which are evenly arranged in the left-right direction.

3. The sports shoe sole according to claim 1, characterized in that, The diameter of the tapered buffer hole (7) gradually expands from the inner bottom layer (3) toward the outer bottom layer (1).

4. The sports shoe sole according to claim 1, characterized in that, The lower surface of the forefoot widening structure (4) is provided with a wave-shaped anti-slip texture.

5. The sports shoe sole according to claim 1, characterized in that, The rib-shaped assembly unit (5) is integrally molded from foamed material, and the foam pore diameter of the front inclined part (50) is smaller than that of the rear inclined part (51).

6. The sports shoe sole according to claim 1, characterized in that, The thickness of the front slope (50) is less than that of the rear slope (51).

7. The sports shoe sole according to claim 1, characterized in that, The lower surface of the outer bottom layer (1) is provided with pressure guide textures (8), including: The heel guide pattern (80) is located below the heel covering structure (6); The transitional crease of the foot arch (81) is located in the arch area; The forefoot is divided into 82 creases, corresponding to the thumb and little finger respectively.

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