Self-adaptive sole

Abstract

The utility model belongs to the technical field of shoe manufacturing, and particularly relates to a self-adaptive sole. Comprising a base structure matched with the outline of a sole and composed of a plurality of segmented units distributed at intervals, and segmented gaps are formed between the segmented units; the elastic connecting areas are filled in the subsection gaps, are connected with the adjacent subsection units and allow the subsection units to elastically deform relatively; the dynamic grabbing area is arranged at the bottom of the base and comprises peripheral expansion protrusions distributed in the circumferential direction of the outer edge of the base and inclined outwards and central auxiliary protrusions evenly distributed in the middle area of the base, and the peripheral expansion protrusions make contact with the ground earlier than the central auxiliary protrusions; when the peripheral expansion protrusions are pressed, the peripheral expansion protrusions expand outwards to increase the grounding area, and the segmented units achieve elastic deformation synchronous with expansion of the peripheral expansion protrusions through the elastic connection areas. According to the utility model, through cooperation of the segmentation units and the elastic connection areas and cooperation of the protruding structures with different grounding time sequences of the dynamic grabbing areas, synchronous elastic deformation and grounding area expansion when the sole is pressed are realized.

Description

Technical Field

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

[0002] As a key component of footwear that comes into contact with the ground, the performance of the sole directly affects the wearer's athletic performance, comfort, and safety. In everyday walking, running, and outdoor sports, the sole needs to provide good grip, cushioning, and support to adapt to different terrains and movement postures. Furthermore, as people's demands for footwear functionality increase, soles must not only fulfill basic protective functions but also achieve dynamic adaptability to conform to the biomechanical changes of the foot during movement.

[0003] However, conventional shoe soles currently on the market still have many design shortcomings. For example, traditional one-piece sole structures lack zoned design, failing to accommodate the differentiated needs of different foot areas during exercise, resulting in insufficient forefoot flexibility or poor heel cushioning; some soles use fixed-shape protrusions for grip, making it difficult to actively adjust the contact area under complex terrain or changing force, easily leading to slippage; in addition, soles made of a single material struggle to balance elasticity and support, potentially causing ankle sprains and other risks due to poor stability during strenuous exercise, failing to meet users' expectations for high-performance footwear products. Utility Model Content

[0004] This invention aims to improve grip, stability, and athletic adaptability by using segmented units and elastic connection areas in conjunction with protruding structures in the dynamic grip area at different ground contact times. This allows for synchronous elastic deformation and expansion of the ground contact area when the sole is compressed, thereby alleviating the problems mentioned in the background art.

[0005] The purpose of this invention is achieved as follows: an adaptive shoe sole, comprising:

[0006] The base structure, which matches the contour of the foot, is composed of multiple spaced segmented units, with segmented gaps formed between the segmented units;

[0007] An elastic connection area is filled within the segment gaps, connecting adjacent segment units and allowing for relative elastic deformation.

[0008] The dynamic gripping area, located at the bottom of the base, includes peripheral expansion protrusions distributed circumferentially along the outer edge of the base and inclined outwards, and central auxiliary protrusions evenly distributed in the middle region of the base. The peripheral expansion protrusions touch the ground before the central auxiliary protrusions.

[0009] The peripheral expansion protrusion expands outward under pressure to increase the grounding area, and the segmented unit achieves elastic deformation synchronous with the expansion of the peripheral expansion protrusion through the elastic connection area.

[0010] The present invention is further configured such that the elastic connection area is made of at least one of foamed rubber, honeycomb elastomer and thermoplastic polyurethane elastomer.

[0011] The present invention is further configured such that the bottom diameter of the peripheral expansion protrusion is greater than the top diameter, forming a truncated cone structure that is narrower at the top and wider at the bottom.

[0012] The present invention is further provided that the bottom of the peripheral expansion protrusion is provided with an anti-slip texture.

[0013] The present invention is further configured such that the top of the central auxiliary protrusion is connected to the base structure, and the bottom is a spherical or ellipsoidal structure.

[0014] The present invention is further configured such that the segmented unit includes a forefoot segment, a midfoot segment, and a heel segment, and the distribution density of the forefoot segment is greater than the distribution density of the midfoot segment and the heel segment.

[0015] The present invention is further configured such that the width of the segment gap increases gradually from the forefoot segment to the heel segment along the longitudinal direction of the sole.

[0016] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:

[0017] 1. By expanding outwards under pressure through the outer expansion protrusions to increase the ground contact area, and in conjunction with the spherical or ellipsoidal bottom structure of the central auxiliary protrusion, the contact effect with the ground can be enhanced under different terrains, significantly improving the grip of the sole.

[0018] 2. The base structure uses segmented units in combination with elastic connection areas, and the width of the segment gaps increases gradually along the longitudinal direction of the sole. The heel segment gaps are wider and the cushioning deformation capacity is stronger, which can better distribute pressure when walking or exercising, effectively improve overall stability, and reduce the risk of ankle sprains.

[0019] 3. The segmented units expand and deform synchronously with the outer expansion protrusions through the elastic connection area, so that the sole can adjust its shape according to the pressure changes and posture of the human foot during movement, adaptively conforming to the ground, improving wearing comfort and athletic performance. Attached Figure Description

[0020] Figure 1 This is an exploded view of this utility model;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A.

[0023] The attached diagram is labeled as follows: 1. Base structure; 10. Segmented unit; 100. Forefoot segment; 101. Midfoot segment; 102. Heel segment; 11. Segment gap; 2. Elastic connection area; 3. Dynamic grip area; 30. Peripheral expansion protrusion; 31. Central auxiliary protrusion; 4. Anti-slip texture. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :

[0025] Example 1:

[0026] This embodiment provides an adaptive shoe sole, including:

[0027] The base structure 1, which matches the contour of the foot, is composed of multiple spaced segmented units 10, with segmented gaps 11 formed between the segmented units 10;

[0028] The elastic connection area 2 fills the segment gap 11, connects adjacent segment units 10 and allows them to elastically deform relative to each other;

[0029] The dynamic gripping area 3 is located at the bottom of the base and includes peripheral expansion protrusions 30 distributed circumferentially along the outer edge of the base and inclined outward, and central auxiliary protrusions 31 evenly distributed in the middle region of the base. The peripheral expansion protrusions 30 touch the ground before the central auxiliary protrusions 31.

[0030] When the peripheral expansion protrusion 30 is compressed, it expands outward to increase the grounding area. The segmented unit 10 achieves elastic deformation synchronous with the expansion of the peripheral expansion protrusion 30 through the elastic connection area 2.

[0031] The base structure 1 serves as the basic support frame for the sole, matching the contour of the foot to provide a close-fitting support. Simultaneously, its segmented design enables dynamic deformation. The base structure 1 consists of multiple spaced-apart segmented units 10, with segment gaps 11 between them. Its overall shape conforms to the natural curvature of the human foot.

[0032] Segmented unit 10 is used to bear the pressure of different areas of the foot and adapts to the foot's movement posture through independent deformation. Segmented unit 10 is indirectly connected to adjacent segmented units 10 through elastic connection area 2, allowing relative elastic deformation.

[0033] The elastic connection area 2 is used to fill the segment gap 11, connect adjacent segment units 10, provide elastic buffering, and transmit deformation force, so that the segment unit 10 and the peripheral expansion protrusion 30 move synchronously. The elastic connection area 2 fills the segment gap 11.

[0034] The dynamic grip area 3, as a key area in direct contact between the sole and the ground, is designed to actively adjust its grip performance to adapt to different ground conditions and changes in human movement posture, providing functions such as anti-slip and support. The dynamic grip area 3 consists of peripheral expansion protrusions 30 distributed circumferentially along the outer edge of the base and central auxiliary protrusions 31 evenly distributed in the middle area of ​​the base.

[0035] The peripheral expansion protrusions 30 preferentially contact the ground, expanding outwards under pressure to increase the contact area and provide initial grip and lateral stability. They are key components for handling complex terrain and dynamic movements. The peripheral expansion protrusions 30 are distributed circumferentially along the outer edge of the base structure 1, forming a grip structure surrounding the edge of the sole. The peripheral expansion protrusions 30 are tightly connected to the bottom of the base structure 1, achieving a seamless connection through a one-piece molding process, or ensuring stability through bonding, embedding, or other methods.

[0036] The central auxiliary protrusion 31 assists the peripheral expansion protrusions 30 during movement, providing support and grip in the central area. Its spherical or ellipsoidal bottom structure can adapt to different ground curvatures, enhancing overall stability. The central auxiliary protrusions 31 are evenly distributed in the central area of ​​the base structure 1, compensating for the parts not covered by the peripheral expansion protrusions 30. The central auxiliary protrusions 31 can be integrally formed with the base structure 1 or firmly bonded to ensure stability and reliability under stress.

[0037] In this embodiment, when the sole touches the ground, the outer expansion protrusion 30 is first subjected to force due to its inclined structure. Its truncated cone shape causes it to expand outward after being compressed, increasing the ground contact area and providing initial grip. At this time, the expansion force is transmitted to the elastic connection area 2 through the base structure 1, causing the elastic connection area 2 to deform and drive the adjacent segment units 10 to generate elastic deformation synchronously, so that the base structure 1 conforms to the contour of the foot and the shape of the ground. The central auxiliary protrusion 31 then touches the ground. Its spherical or ellipsoidal bottom fills the support gap in the central area and works in conjunction with the outer expansion protrusion 30 to enhance grip and stability. This allows the sole to adaptively adjust its grip performance and cushioning effect through the linkage between structures under different terrains and movement postures.

[0038] Example 2:

[0039] This embodiment provides an adaptive sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] The elastic connection area 2 is made of at least one of foamed rubber, honeycomb elastomer and thermoplastic polyurethane elastomer.

[0041] In this embodiment, at least one of foamed rubber, honeycomb elastomer, and thermoplastic polyurethane elastomer is used to make the elastic connection area 2. The aim is to utilize the excellent elastic deformation capability of these materials so that adjacent segment units 10 can maintain connection while being able to deform relatively flexibly, achieving adaptive adjustment in sync with the peripheral expansion protrusions 30. At the same time, these materials have good wear resistance and cushioning performance, and can withstand repeated compression and stretching during long-term use. This ensures that when the elastic connection area 2 fills the segment gaps 11, it provides reliable structural connection strength and meets the multiple requirements of the sole for comfort, support, and dynamic response during exercise.

[0042] Example 3:

[0043] This embodiment provides an adaptive sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] The bottom diameter of the peripheral expansion protrusion 30 is larger than the top diameter, forming a frustum-shaped structure that is narrower at the top and wider at the bottom.

[0045] In this embodiment, the peripheral expansion protrusion 30 is designed as a truncated cone structure that is narrow at the top and wide at the bottom. The purpose is to utilize its special geometric shape so that the protrusion can naturally expand outward when under pressure, thereby effectively increasing the ground contact area and enhancing grip. At the same time, the wider bottom design can disperse the impact force from the ground to a larger area, reduce stress concentration at the root of the protrusion, and improve structural strength and durability. In addition, this structure is also convenient for demolding during mold forming, reducing production costs, and the inclined sidewalls can provide stable support under lateral forces, further improving the stability of the sole during exercise.

[0046] Example 4:

[0047] This embodiment provides an adaptive sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0048] The bottom of the peripheral expansion protrusion 30 is provided with anti-slip texture 4.

[0049] In this embodiment, an anti-slip texture 4 is provided at the bottom of the peripheral expansion protrusion 30. This is intended to significantly improve the friction of the sole in different ground environments such as wet and rough surfaces by increasing the roughness of the contact surface and utilizing the mechanical interlocking effect between the texture and the ground, thus preventing slippage. At the same time, the groove structure of the texture can effectively drain water, mud, sand and other foreign objects from the ground, preventing the accumulation of foreign objects from weakening the grip effect and ensuring that the protrusion and the ground always maintain close contact. In addition, the anti-slip texture 4 with specific shapes such as wave-shaped and prismatic can also produce elastic deformation when subjected to force, further enhancing the adhesion to the ground and working with the truncated cone structure to achieve more reliable dynamic grip performance.

[0050] Example 5:

[0051] This embodiment provides an adaptive sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] The top of the central auxiliary protrusion 31 is connected to the base structure 1, and the bottom is a spherical or ellipsoidal structure.

[0053] In this embodiment, the top of the central auxiliary protrusion 31 is connected to the base structure 1, and the bottom is designed as a spherical or ellipsoidal structure. The purpose is to ensure the stability of the protrusion and the base through the top connection, while the bottom curved shape can adapt to the concave and convex curvature of different ground surfaces, so that the protrusion can enhance the grip stability by contacting the ground at multiple points. The spherical or ellipsoidal structure can evenly distribute the impact force when under pressure, reduce local stress concentration, and improve the cushioning performance. At the same time, the curved design can conform to the curvature change of the foot during movement, avoid the discomfort caused by the rigid contact of the protrusion, and form a continuous friction force distribution when the edge of the curved surface contacts the ground. Together with the outer expansion protrusion 30, it fills the grip gap in the central area, thereby optimizing the overall grip and comfort of the sole.

[0054] Example 6:

[0055] This embodiment provides an adaptive sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] The segmented unit 10 includes a forefoot segment 100, a midfoot segment 101, and a heel segment 102. The distribution density of the forefoot segment 100 is greater than that of the midfoot segment 101 and the heel segment 102.

[0057] In this embodiment, the segmented unit 10 is divided into forefoot, midfoot, and heel segments 102, with the forefoot segment 100 having a higher distribution density than the midfoot and heel segments. The core purpose is to design specifically based on the force characteristics of the forefoot in human biomechanics. As the main force-generating and ground-contact area during walking, running, and jumping, a higher segment density in the forefoot can enhance the elastic feedback and impact absorption capacity of the forefoot area by increasing the number of independent cushioning structures per unit area, thus avoiding fatigue or injury caused by repeated high-intensity force. At the same time, the dense segment design can give the forefoot more flexible deformation adaptability, making it more in line with the curvature of the ground during bending movements, enhancing the accuracy and stability of grip. The midfoot and heel segments 102 have a lower density, which can reduce the weight of the sole while ensuring arch support and heel cushioning, and can also achieve a reasonable distribution of force transmission through differentiated distribution, avoiding weak support in the forefoot area due to insufficient density or weight redundancy in the midfoot and heel due to excessive density, ultimately achieving a balance between athletic functionality and wearing comfort.

[0058] Example 7:

[0059] This embodiment provides an adaptive sole, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0060] The width of the segment gap 11 increases gradually along the longitudinal direction of the sole from the forefoot segment 100 to the heel segment 102.

[0061] In this embodiment, the width of the segment gap 11 is designed to gradually increase from the forefoot to the heel along the longitudinal direction of the sole. The core purpose is to adapt to the movement function requirements and mechanical distribution characteristics of different areas of the foot. As the forefoot is a frequently bending and force-generating area, a smaller gap ensures close linkage of the segment units 10, maintaining consistent deformation during push-off and turning, and avoiding power transmission loss due to excessive gaps. As the foot transitions towards the midfoot and heel, foot movement focuses on support and cushioning. The gradually increasing gap allows for more flexible relative displacement between the segment units 10, providing more deformation space for the heel and enhancing the cushioning effect against ground reaction forces.

[0062] Meanwhile, the gradient gap layout can optimize the overall flexibility and support balance of the sole. The compact structure in the forefoot ensures power efficiency, while the loose gap in the heel improves shock absorption. This design can also guide the force of the foot to be naturally transmitted longitudinally, reducing stress concentration. Combined with the differentiated distribution of segmented density, it further realizes the dynamic functional transition from "flexible forefoot drive" to "stable heel cushioning", adapting to the foot movement trajectory in various scenarios such as walking and running.

[0063] 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. An adaptive sole, characterized in that... ,include: The base structure (1), which matches the foot contour, is composed of multiple spaced segmented units (10), with segmented gaps (11) formed between the segmented units (10). The elastic connection area (2) fills the segment gap (11), connects adjacent segment units (10) and allows them to elastically deform relative to each other; The dynamic gripping area (3) is located at the bottom of the base and includes peripheral expansion protrusions (30) distributed circumferentially along the outer edge of the base and inclined outwards, and central auxiliary protrusions (31) evenly distributed in the middle region of the base. The peripheral expansion protrusions (30) touch the ground before the central auxiliary protrusions (31). When the peripheral expansion protrusion (30) is compressed, it expands outward to increase the grounding area. The segmented unit (10) achieves elastic deformation synchronous with the expansion of the peripheral expansion protrusion (30) through the elastic connection area (2).

2. The adaptive sole according to claim 1, characterized in that, The elastic connection area (2) is made of at least one of foamed rubber, honeycomb elastomer and thermoplastic polyurethane elastomer.

3. The adaptive sole according to claim 1, characterized in that, The bottom diameter of the peripheral expansion protrusion (30) is larger than the top diameter, forming a frustum-shaped structure that is narrow at the top and wide at the bottom.

4. The adaptive sole according to claim 1, characterized in that, The bottom of the peripheral expansion protrusion (30) is provided with anti-slip texture (4).

5. The adaptive sole according to claim 1, characterized in that, The top of the central auxiliary protrusion (31) is connected to the base structure (1), and the bottom is a spherical or ellipsoidal structure.

6. The adaptive sole according to claim 1, characterized in that, The segmented unit (10) includes a forefoot segment (100), a midfoot segment (101), and a heel segment (102), wherein the distribution density of the forefoot segment (100) is greater than that of the midfoot segment (101) and the heel segment (102).

7. An adaptive sole according to claim 6, characterized in that, The width of the segment gap (11) increases gradually along the longitudinal direction of the sole from the forefoot segment (100) to the heel segment (102).

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