Sole and shoe supported by dynamic arch

Abstract

The invention discloses a dynamic arch supporting sole. The dynamic arch supporting sole comprises an upper midsole and a lower midsole, the arch supporting block is compounded below the upper-layer insole and corresponds to the arch part, the arch supporting block is made of a shear thickening material, and the hardness of the arch supporting block is higher than that of the upper-layer insole under the condition that the arch supporting block is not stressed; the inner side wall and the outer side wall of the foot arch supporting block in the left-right direction extend upwards in an arch shape in the front-back direction so as to form a side wall higher than the middle portion of the foot arch supporting block in the left-right direction, and a bearing area matched with the shape of the foot arch portion is defined on the upper side surface of the foot arch supporting block. A hollowed-out groove extending in the front-back direction is formed in the outer side wall towards the inner side wall in a sunken mode, a plurality of supporting arms extending in the left-right direction and arranged in the front-back direction are arranged in the hollowed-out groove, and the supporting arms divide the hollowed-out groove into a plurality of hollowed-out holes which are arranged in the front-back direction and do not communicate with one another; a plurality of first reinforcing ribs which extend in the vertical direction to connect the upper edge and the lower edge of the inner side wall and are arranged in the front-back direction are arranged on the inner side wall in a protruding mode. The supporting effect of the sole can be properly adjusted according to the action state of a child, and better arch supporting performance is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of soles, and in particular to a sole and a shoe with dynamic arch support. Background Art

[0002] The healthy development of children's feet is crucial for their body posture, the formation of their athletic ability, and long-term bone health. The arch of the foot, as an important structure of the sole of the foot, is responsible for multiple physiological functions such as cushioning ground impact, supporting body weight, maintaining body balance, and assisting in walking, running, and jumping. However, since children's skeletal and ligament systems are not yet fully developed, the arch structure is relatively weak. In addition, some children have problems such as congenital flat feet or acquired maldevelopment, which makes the arch of the foot prone to fatigue, collapse, and even pain during daily activities and exercise. For this reason, the existing technology usually adopts a raised insole to support the arch of the foot. This method will deform due to long-term compression of the insole material, resulting in the support effect decaying over time. In addition, children's movements are complex and changeable. When walking normally, the arch support structure is required to have good comfort, and when moving at high speed, it is required to have good support. The support effect of the ordinary raised insole structure cannot be adjusted according to the child's movement state, and the overall arch support effect cannot meet the needs. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a sole and shoe with dynamic arch support, the support effect of which can be appropriately adjusted according to the child's movement status to provide better arch support performance.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] Technical Solution 1: A sole with dynamic arch support, comprising: an upper midsole; and an arch support block, which is compounded below the upper midsole and corresponds to the arch part, and which adopts shear thickening material, and whose hardness under no force is higher than that of the upper midsole; the inner side wall and the outer side wall of the arch support block in the left and right directions extend upward in an arch shape along the front-to-back direction to form a side wall higher than the middle part of the arch support block in the left and right directions, and define a supporting area adapted to the shape of the arch part on the upper surface of the arch support block; the outer side wall is recessed toward the inner side wall and is provided with a hollow groove extending in the front-to-back direction, and the hollow groove is provided with a plurality of support arms extending in the left and right directions and arranged in the front-to-back direction, and the support arms divide the hollow groove into a plurality of hollow holes arranged in the front-to-back direction and not connected to each other; the inner side wall is protruding and is provided with a plurality of first reinforcing ribs extending in the up and down direction to connect the upper and lower edges of the inner side wall and arranged in the front-to-back direction.

[0006] Technical solution 2 based on technical solution 1: the outer wall forms a first groove wall located on the lower side and a second groove wall located on the upper side through the hollow groove, the first groove wall extends perpendicular to the up and down directions, and the second groove wall includes a first wall surface extending perpendicular to the up and down directions and a second wall surface connected to the first wall surface and curved and extended from bottom to top; the second wall surface is located on the outside of the first wall surface relative to the bottom of the hollow groove, and the support arm extends on the second wall surface to form a second reinforcement rib located on the outer wall.

[0007] Technical solution three based on technical solution two: the second reinforcing rib extends upward to the upper edge of the outer side wall.

[0008] Technical solution 4 based on technical solution 3: The first reinforcing rib and the second reinforcing rib are respectively extended obliquely forward and backward in the vertical direction before and after the highest point of the upper edge of the inner wall and the outer wall.

[0009] Technical solution five based on technical solution three: the arch support block is composed of an inner support part close to the inner side and an outer support part close to the outer side in an integral shape in the left and right directions; the front edge and the rear edge of the arch support block are curved and convex toward the rear and the front respectively, and the line connecting the two closest positions along the front and rear directions constitutes the dividing line between the inner support part and the outer support part; the dividing line between the inner support part and the outer support part is closer to the outer side wall in the left and right directions.

[0010] Technical solution six based on technical solution five: the position of the bottom of the hollow groove in the left-right direction does not exceed the dividing line between the inner support part and the outer support part.

[0011] Technical Solution 7 based on Technical Solution 5: The upper surface of the arch support block is provided with a plurality of first embedding parts in the part of the inner support part; the lower surface of the upper midsole is correspondingly provided with a plurality of second embedding parts; the first embedding parts and the second embedding parts are suitable for embedding with each other when the arch support block is compounded with the upper midsole.

[0012] Technical solution eight based on technical solution three: on a projection plane perpendicular to the left-right direction, the projection shape of the outer side wall is located within the projection shape of the inner side wall in the front-to-back direction.

[0013] Technical solution nine based on technical solution eight: On a projection surface perpendicular to the left-right direction, an upper edge of the projection shape of the inner wall is higher than an upper edge of the projection shape of the outer wall.

[0014] In addition, the present invention also provides technical solution ten: a shoe with dynamic arch support, which includes an upper and a sole with dynamic arch support as described in any one of technical solutions one to nine, wherein the upper is compounded on the sole.

[0015] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0016] Technical Solution 1 provides a sole with dynamic arch support. This solution addresses the core issue of existing arch supports failing to simultaneously provide comfort for low-intensity exercise and protection for high-intensity exercise. This solution achieves adaptive changes in the mechanical properties of the arch support on the sole through the synergistic effect of materials and structure.

[0017] First, the sole of the present invention consists of a functionally separate upper midsole and an arch support block. The arch support block uses a shear-thickening material, which is designed to have a higher hardness than the upper midsole when unstressed. Because the arch support block's hardness exceeds the upper gravity and is located below the upper midsole and aligned with the user's arch, it effectively resists deformation of the sole caused by stress. When the user is standing, the arch support block, with its inherent high modulus, provides a stable support platform for the arch of the foot, preventing it from collapsing under the influence of body weight. When the user engages in high-intensity exercises such as running and jumping, the impact force of the ground is a high-strain-rate load. The physical properties of shear-thickening materials dictate that their internal molecular network undergoes instantaneous locking at high strain rates, resulting in a sharp increase in the material's viscoelastic modulus. This means that the overall stiffness of the arch support block increases significantly at the moment of impact, providing higher support than when static, to withstand greater impact loads. This allows the sole's support performance to adaptively adjust to changes in external load.

[0018] Secondly, the structural design of the arch support effectively transforms these material properties into functional properties. Its medial and lateral walls extend upward, forming a sidewall structure that physically applies lateral restraint to the foot. This limits excessive left-right movement and improves stability during movement. The primary reinforcement ribs on the medial wall essentially increase the secondary moment of area in that area, improving the wall's resistance to bending deformation. This effectively supports the medial longitudinal arch and prevents it from collapsing under high loads.

[0019] What is particularly critical is that the hollow groove, support arms and hollow hole structure provided on the outer side wall solve the problems of insufficient flexibility and lack of gait guidance that may be caused by the use of hard dynamic materials. If the same strong reinforcement structure is used on both the inner and outer sides, the entire support block will be too rigid, hindering the necessary and natural deformation of the foot when landing, and it will also be unable to intervene in poor gait. The hollow structure of the present invention actively reduces the overall structural stiffness of the outer side wall by removing material, making it lower than the strong inner side wall. This solves the contradiction between rigidity and flexibility control. When the foot tends to roll inward, this relatively flexible outer side structure can undergo a controllable compression deformation that is greater than the inner side, thereby generating a corrective torque to counteract excessive eversion. At the same time, the support arms in the hollow groove play a role in connecting and transferring loads, preventing the outer side wall from failing due to excessive hollowing, and ensuring that it still has the necessary support capacity while providing flexibility.

[0020] Therefore, the dynamic arch support sole provided by this solution, through the deep coupling of materials and structures, enables the sole to provide adaptive support and stability functions that cannot be achieved by existing technologies. It has good comfort during normal wear and can provide excellent support performance during high-speed exercise.

[0021] In Technical Solution 2, the outer wall is decomposed into a lower first groove wall and an upper second groove wall. The curved surface of the second groove wall is defined, making the force transmission path of the outer wall more clear and controllable when deformed under pressure. Furthermore, the support arm includes a second reinforcing rib extending from the second wall surface, giving the support arm, which originally only served a connecting and supporting role, a reinforcing structure. This ensures that the outer wall achieves hollowing to reduce weight and increase flexibility while maintaining good structural strength and durability.

[0022] In technical solution three, the second reinforcement rib is extended upward to the upper edge of the outer wall, so that the structural strength of the upper edge of the outer wall is improved, the stress distribution of the entire side wall is more uniform, local stress concentration is avoided, and the overall structural strength and fatigue resistance of the arch support block are effectively improved.

[0023] In technical solution four, the first and second reinforcement ribs are designed to have an arched profile that extends obliquely forward and backward at the highest point. The arched structure can more effectively decompose the vertical load into pressure along the axial direction of the component, so that the reinforcement ribs can transmit and disperse the downward pressure from the arch of the foot in the most efficient way, thereby providing stronger support effect with the same amount of material.

[0024] In technical solution five, the arch support block is formed into an "X" shape as a whole through the curved structure of the front and rear edges, which can not only ensure that the sole has sufficient deformation ability in the arch area, but also does not affect the supporting effect of the arch support block on the user's foot arch.

[0025] In Technical Solution 6, the bottom position of the hollow groove is limited to not exceeding the dividing line between the inner and outer support parts, ensuring that the inner support part, which serves as the main support area, has a complete structure and the highest rigidity, so that it can fully assume the task of supporting the medial longitudinal arch. At the same time, the function of providing flexible deformation is strictly controlled in the outer support part to ensure the support effect of the entire arch support block.

[0026] In Technical Solution 7, a first interlocking portion is provided on the inner support portion, and a corresponding second interlocking portion is provided on the upper midsole. The two interlock together to form a mechanical interlock. This interlocking structure effectively resists the shear forces generated during exercise and prevents the two components from sliding relative to each other. This ensures that the arch support block is always in the correct position, thus ensuring the stability of the arch support function.

[0027] In Technical Solution 8, the length of the projected shape of the outer wall in the front-to-back direction is designed to be within the projected shape of the inner wall, that is, the outer wall is shorter than the inner wall, so that the coverage of the arch support block is more closely aligned with the core support area of ​​the sole of the foot, avoiding excessive restrictions on unnecessary areas on the outside of the foot, thereby improving wearing comfort and flexibility of movement.

[0028] In Technical Solution 9, the projected upper edge of the medial wall is designed to be higher than the lateral wall. This higher medial wall provides a larger resisting force arm when the foot tends to roll inward, generating a more effective corrective torque. This asymmetrical height design significantly enhances the sole's ability to combat excessive pronation.

[0029] Technical Solution 10 provides a shoe with dynamic arch support, which can provide comprehensive, stable and comfortable arch support for the wearer, especially children whose arches are still in the development stage or have functional problems with their arches. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 Schematic diagram of the structure of the sole of the dynamic arch support according to the embodiment of the present invention Figure 1 ;

[0032] Figure 2 Schematic diagram of the structure of the sole of the dynamic arch support according to the embodiment of the present invention Figure 2 ;

[0033] Figure 3 for Figure 1 Schematic diagram of the structure of the mid-foot arch support block Figure 1 ;

[0034] Figure 4 for Figure 1 Schematic diagram of the structure of the mid-foot arch support block Figure 2 ;

[0035] Figure 5 for Figure 1 Schematic diagram of the structure of the mid-foot arch support block Figure 3 ;

[0036] Figure 6 for Figure 1 Schematic diagram of the structure of the mid-foot arch support block Figure 3 ;

[0037] Figure 7 for Figure 1 Schematic diagram of the structure of the upper midsole Figure 1 ;

[0038] Figure 8 for Figure 1 Schematic diagram of the structure of the upper midsole Figure 2 .

[0039] Description of main reference numerals:

[0040] Upper midsole 100; composite groove 110; second fitting portion 111;

[0041] Arch support block 200; inner wall 210; inner wall upper edge 211; outer wall 220; outer wall upper edge 221; side wall 222; supporting area 230; hollow groove 240; first groove wall 241; second groove wall 242; first wall surface 243; second wall surface 244; support arm 245; second reinforcing rib 246; hollow hole 247; first reinforcing rib 250; inner support portion 261; outer support portion 262; dividing line 263; leading edge 264; trailing edge 265; first interlocking portion 271. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] In the claims, description and drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is for the purpose of distinguishing different objects rather than for describing a specific order.

[0044] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly defined, directional words such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention.

[0045] In the claims, description and above-mentioned drawings of the present invention, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two parties, that is, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0046] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0047] Example 1

[0048] The embodiment of the present invention relates to a sole with dynamic arch support, referring to Figure 1 and Figure 2 The sole comprises an upper midsole 100 and an arch support block 200. Preferably, a composite outsole can be formed below the upper midsole 100 and the arch support block 200. The outsole can be made of TPU, rubber or nylon.

[0049] The structure of the upper midsole 100 is referenced Figure 1 、 Figure 2 as well as Figure 7 and Figure 8 , respectively showing the composite structure of the upper midsole 100 and the arch support block 200 and the structure of the upper midsole 100 alone. The upper midsole 100 can be made of EVA material or other conventional midsole materials, and is formed into a conventional sole shape. Figure 7 and Figure 8 A composite groove 110 that is recessed upward is formed on the bottom surface of the upper midsole 100 at a position corresponding to the arch of the foot. The shape of the composite groove 110 matches the shape of the arch support block 200. The arch support block 200 can be embedded and fixed into the composite groove 110 by bonding to form a secure connection with the upper midsole 100.

[0050] The arch support block 200 of the sole is compounded below the upper midsole 100 and corresponds to the arch of the foot. It uses a shear-thickening material, and its hardness when not under stress is higher than that of the upper midsole 100. Specifically, the material used in the arch support block 200 is a shear-thickening material, which refers to a smart material with special mechanical response characteristics. Its physical state will change significantly with the change of shear force (such as extrusion, friction, impact and other external forces): when subjected to small external forces or no force, the particles or molecules inside the material are in a relatively loose free state, and the overall material exhibits low hardness and easy deformation characteristics similar to gel or elastomer; when subjected to a sudden increase in shear force (such as when the arch of the foot is subjected to rapid pressure or torsional force during exercise), the particles inside the material will quickly aggregate to form a rigid structure, and the molecular chains will instantly "lock", and the hardness and impact resistance will increase sharply, thereby producing a solid support and cushioning effect. In this embodiment, the shear thickening material is a polyborosiloxane shear thickening glue. Since the hardness of the shear thickening material needs to be higher than the hardness of the upper midsole 100 when it is not under stress, if a specific brand of polyborosiloxane shear thickening glue cannot meet this requirement, it can be modified by adding a rigid filler or a cross-linking agent. This modification operation is a conventional technical means in this field. Based on the content disclosed in the present invention, those skilled in the art can obtain a shear thickening material that can meet the corresponding requirements through conventional experimental steps. Among them, "unstressed state" refers to the state when the arch support block 200 is compounded with the upper midsole 100 and is not in use, that is, when it is not stepped on by the user.

[0051] Reference Figures 3 to 6 The inner side wall 210 and the outer side wall 220 of the arch support block 200 in the left and right directions extend upward in an arch shape along the front and back directions to form a side wall 222 that is higher than the middle part of the arch support block 200 in the left and right directions, and define a supporting area 230 adapted to the shape of the arch part on the upper surface of the arch support block 200; the outer side wall 220 is recessed toward the inner side wall 210 and is provided with a hollow groove 240 extending along the front and back directions, and the hollow groove 240 is provided with a plurality of support arms 245 extending along the left and right directions and arranged along the front and back directions, and the support arms 245 divide the hollow groove 240 into a plurality of hollow holes 247 arranged along the front and back directions and not connected to each other; the inner side wall 210 is protruding with a plurality of first reinforcing ribs 250 extending along the up and down directions to connect the upper and lower edges of the inner side wall 210 and arranged along the front and back directions.

[0052] Specifically, the sole of the shoe in this embodiment is for the left foot, so its inner side corresponds to the right side in the drawings, and the outer side corresponds to the left side in the drawings. The inner side wall 210 is formed on the right side of the arch support block 200, and the outer side wall 220 is formed on the left side of the arch support block 200. The inner side wall 210 and the outer side wall 220 both extend upward in an arch shape along the front-back direction. Figure 3 and Figure 4 The arch support block 200 has a thickness variation in the left-right direction, with a thinner center and thicker sides. Specifically, the thickness is greater at the inner sidewall 210 and outer sidewall 220. This thickness is achieved by the upward extension of the inner sidewall 210 and outer sidewall 220. Furthermore, the inner sidewall 210 and outer sidewall 220 do not extend upward uniformly at all locations in the front-to-back direction. Instead, the inner sidewall 210 and outer sidewall 220 extend more upward at the center, thereby forming an upwardly convex arch shape on a projection plane perpendicular to the left-right direction. This arch shape is defined by the upper and lower edges of the inner sidewall 210 and outer sidewall 220. The upper edges of the inner sidewall 210 and outer sidewall 220 form the inner wall upper edge 211 and outer wall upper edge 221, respectively. The lower edges of the inner sidewall 210 and outer sidewall 220 are substantially flush with the bottom surface of the arch support block 200. The upper surface of the arch support block 200 defines a support area 230 that conforms to the shape of the human arch. This support area 230 includes a substantially planar portion in the middle and sidewalls 222 formed by the inner and outer sidewalls 210 and 220 on either side. Within the upper surface of the arch support block 200 that constitutes the support area 230, the two sidewalls 222 smoothly transition into the planar portion in the middle.

[0053] And, refer to Figure 6 The arch support block 200 is formed as a whole by an inner support portion 261 close to the inner side and an outer support portion 262 close to the outer side in the left-right direction; the front edge 264 and the rear edge 265 of the arch support block 200 are curved and convex toward the rear and the front respectively, and the line connecting the two closest positions in the front-to-back direction constitutes the dividing line 263 between the inner support portion 261 and the outer support portion 262; the dividing line 263 between the inner support portion 261 and the outer support portion 262 is closer to the outer side wall 220 in the left-right direction.

[0054] Specifically, the arch support block 200 is integrally formed and includes an outer support portion 262 on the left side and an inner support portion 261 on the right side, with a dividing line 263 formed between them. The front edge 264 and rear edge 265 of the arch support block 200 are curved, convexly convexly posteriorly and convexly ...

[0055] In addition, on the projection plane perpendicular to the left-right direction, the projection shape of the outer wall 220 is located within the projection shape of the inner wall 210 in the front-to-back direction. Also, on the projection plane perpendicular to the left-to-right direction, the upper edge of the projection shape of the inner wall 210 is higher than the upper edge of the projection shape of the outer wall 220. Specifically, refer to Figure 6 , the front end of the inner wall 210 is further forward than the front end of the outer wall 220, and the rear end of the inner wall 210 is further rearward than the rear end of the outer wall 220. Figure 5 The highest point of the upper edge of the medial wall 210 is higher than the highest point of the upper edge of the lateral wall 220 in the vertical direction. The above-mentioned shape and size restrictions make the coverage of the arch support block 200 more closely fit the core support area of ​​the sole of the foot, avoiding excessive restrictions on non-essential areas on the outside of the foot, thereby improving wearing comfort and flexibility of movement. In addition, the higher medial wall 210 can provide a larger resistance arm when the foot tends to roll inward, thereby generating a more effective corrective torque. This asymmetric height design greatly enhances the sole's ability to resist excessive foot eversion.

[0056] Reference Figure 3 and Figure 4A hollowed-out groove 240 is formed on the outer sidewall 220. This hollowed-out groove 240 is generally wedge-shaped, meaning that the hollowed-out groove 240 has a thicker left portion and a thinner right portion in the thickness direction. Furthermore, corresponding to the structure of the front edge 264 and rear edge 265 of the arch support block 200, the hollowed-out groove 240 is generally wider on the left side and narrower on the right side when projected perpendicular to the vertical direction. Multiple support arms 245 are disposed within the hollowed-out groove 240. These support arms 245 extend in the left-right direction and are arranged in the front-to-back direction. These support arms 245 connect to the two side walls of the hollowed-out groove 240 in the vertical direction, thereby dividing the hollowed-out groove 240 into a plurality of mutually disconnected hollowed-out holes 247. In this embodiment, there are four support arms 245, with three larger hollowed-out holes 247 located in the center and two smaller hollowed-out holes 247 located at the front and back ends.

[0057] Furthermore, the bottom of the hollow groove 240 does not extend beyond the boundary 263 between the inner support portion 261 and the outer support portion 262 in the left-right direction. This arrangement ensures that the inner support portion 261, as the primary support area, has a complete structure and the highest rigidity, enabling it to fully assume the task of supporting the medial longitudinal arch. At the same time, the function of providing flexible deformation is strictly controlled to the outer support portion 262, ensuring the full support effect of the entire arch support block 200.

[0058] Reference Figure 5 A plurality of first reinforcing ribs 250 are formed on the inner wall 210 . The first reinforcing ribs 250 protrude from other portions of the inner wall 210 and extend from a position close to the lower edge of the inner wall 210 to an upper edge of the inner wall 210 .

[0059] Further, refer to Figure 3 and Figure 4 The outer wall 220 forms a first groove wall 241 located on the lower side and a second groove wall 242 located on the upper side through the hollow groove 240. The first groove wall 241 extends perpendicular to the up and down directions. The second groove wall 242 includes a first wall surface 243 extending perpendicular to the up and down directions and a second wall surface 244 connected with the first wall surface 243 and curved and extended from bottom to top; the second wall surface 244 is located on the outer side of the first wall surface 243 relative to the bottom of the hollow groove 240, and the support arm 245 extends on the second wall surface 244 to form a second reinforcing rib 246 located on the outer wall 220.

[0060] Specifically, the hollow groove 240 is formed within the outer support portion 262, and the outer sidewall 220 is only a portion of the second wall 244 of the hollow groove 240. The lower side wall of the hollow groove 240 forms the first groove wall 241, and the upper side wall forms the second groove wall 242. The two groove walls are arranged opposite each other, and the main part of the support arm 245 is used to connect the two groove walls. The second groove wall 242 is composed of a first wall 243 and a second wall 244. The first wall 243 and the first groove wall 241 both extend generally along the horizontal plane. However, because the arch support block 200 is thicker on the left and right sides, the second wall 244 of the second groove wall 242 is configured to extend upward. At the position of the second wall 244, the support arm 245 continues to extend along the second wall 244. At this time, the portion of the support arm 245 located on the second wall 244 forms a second reinforcing rib 246, and the second reinforcing rib 246 extends upward until it connects to the upper edge of the outer wall 220, that is, connects to the upper edge of the second wall 244.

[0061] And, refer to Figure 3 and Figure 5 The first and second reinforcing ribs 250, 246 extend obliquely in the vertical direction, respectively, in the portions before and after the highest points of the upper edges of the inner and outer sidewalls 210, 220, respectively. Specifically, four first and second reinforcing ribs 250, 246 are provided. For each of the inner and outer sidewalls 210, 220, two are located in front of the highest point of the upper edge of the sidewall 222, and two are located behind the highest point of the upper edge of the sidewall 222. The two first and second reinforcing ribs 250, 246 located in the front extend slightly obliquely from bottom to top and from back to front, while the two first and second reinforcing ribs 250, 246 located in the rear extend slightly obliquely from bottom to top and from front to back. By designing the first reinforcement rib 250 and the second reinforcement rib 246 into an arched profile that extends obliquely forward and backward at the highest point, the arched structure can more effectively decompose the vertical load into pressure along the axial direction of the component, so that the reinforcement rib can transmit and disperse the downward pressure from the arch of the foot in the most efficient manner, thereby providing a stronger support effect with the same amount of material.

[0062] In addition, refer to Figure 4 、 Figure 7 and Figure 8The upper surface of the arch support block 200 is provided with a plurality of first engaging portions 271 in the portion of the inner support portion 261; the lower surface of the upper midsole 100 is provided with a plurality of corresponding second engaging portions 111. The first engaging portions 271 and the second engaging portions 111 are adapted to engage with each other when the arch support block 200 is assembled with the upper midsole 100. In this embodiment, the first engaging portions 271 are multiple recessed structures provided on the upper surface of the arch support block 200. These recessed structures are generally cylindrical and are arranged in a plurality in the front-to-back direction, and in two rows in the left-to-right direction. Correspondingly, the second interlocking portion 111 is a plurality of protruding structures provided on the bottom of the composite groove 110 of the upper midsole 100. These protruding structures are adapted to the shape and size of the recessed structure of the first interlocking portion 271, and their positions correspond one to one. Thus, after the arch support block 200 is composited to the upper midsole 100, the first interlocking portion 271 and the second interlocking portion 111 can be interlocked. This mutually interlocking structure can effectively resist the shear force generated during exercise and prevent the two components from sliding relative to each other. This ensures that the arch support block 200 is always in the correct position, thereby ensuring the stability of the arch support function.

[0063] This embodiment relates to a shoe sole with dynamic arch support, addressing the core issue that existing arch support devices cannot simultaneously provide comfort for low-intensity exercise and protection for high-intensity exercise. This solution achieves adaptive changes in the mechanical properties of the arch support on the shoe sole through the synergistic effect of materials and structure. First, the shoe sole of the present invention consists of an upper midsole 100 and an arch support block 200, each with separate functions. The arch support block 200 is made of a shear-thickening material and is designed to have a higher hardness than the upper midsole 100 when unstressed. Because the hardness of the arch support block 200 exceeds the upper gravity and is located below the upper midsole 100 and aligned with the user's arch, it can effectively resist deformation caused by stress on the sole. When the user is standing, the arch support block 200, with its inherent high modulus, provides a stable support platform for the arch of the foot, preventing it from collapsing under the influence of body weight. When a user engages in high-intensity exercise such as running and jumping, the impact force of the ground is a high strain rate load. The physical properties of shear thickening materials determine that their internal molecular network will undergo instantaneous locking at high strain rates, resulting in a sharp increase in the material's viscoelastic modulus. This means that the overall stiffness of the arch support block 200 will be significantly improved at the moment of impact, thereby providing a higher support force than when static to withstand larger impact loads. As a result, the support performance of the sole can be adaptively adjusted according to changes in external loads. Secondly, the structural design of the arch support block 200 effectively transforms the above-mentioned material properties into functions. Its inner wall 210 and outer wall 220 extend upward to form a side wall 222 structure, which physically applies lateral restraint to the foot, which limits excessive displacement of the foot in the left and right directions and improves stability during movement. The first reinforcing rib 250 provided on the inner wall 210 essentially increases the secondary moment of section of this area, improving the ability of the inner wall 210 to resist bending deformation, thereby more effectively supporting the inner longitudinal arch and preventing it from collapsing under high loads. What is particularly critical is that the hollow groove 240, support arm 245 and hollow hole 247 structure provided on the outer side wall 220 solve the problems of insufficient flexibility and lack of gait guidance that may be caused by the use of hard dynamic materials. If the same strong reinforcement structure is used on both the inner and outer sides, the entire support block will be too rigid, hindering the necessary and natural deformation of the foot when landing, and it will also be unable to intervene in poor gait. The hollow structure of the present invention actively reduces the overall structural stiffness of the outer side wall 220 by removing material, making it lower than the strong inner side wall 210. This solves the contradiction between rigidity and flexibility control. When the foot tends to roll inward, this relatively flexible outer side structure can undergo a controllable compression deformation that is larger than the inner side, thereby generating a corrective torque to counteract excessive eversion.At the same time, the support arms 245 in the hollowed-out grooves 240 serve to connect and transfer loads, preventing the outer sidewall 220 from failing due to excessive hollowing, ensuring that it maintains the necessary support capabilities while providing flexibility. Therefore, the dynamic arch support sole provided by this solution, through the deep coupling of materials and structures, enables the sole to provide adaptive support and stability functions that are unattainable with existing technologies, providing excellent comfort during normal wear and excellent support performance during high-speed exercise.

[0064] Example 2

[0065] This embodiment provides a shoe with dynamic arch support. The shoe comprises an upper and a sole with any of the dynamic arch supports described in Example 1. The upper is bonded to the sole using conventional shoemaking techniques, such as gluing, stitching, or integral injection molding. The specific structure and material of the upper can be selected based on the type of shoe (e.g., sports shoe, casual shoe, etc.) and design requirements.

[0066] By adopting the sole described in the above-mentioned embodiment 1, the shoes of this embodiment can provide effective arch support for the wearer, especially children, help maintain the normal physiological shape of the arch, disperse the pressure on the sole of the foot, and improve wearing comfort and movement stability.

[0067] The above description and embodiments are intended to explain the scope of protection of the present invention, but do not constitute a limitation thereto. Modifications, equivalent substitutions, or other improvements to the embodiments of the present invention or portions thereof that can be obtained by a person of ordinary skill in the art through logical analysis, reasoning, or limited experimentation based on the teachings of the present invention or the above embodiments, combined with common knowledge, ordinary technical knowledge in the field, and / or prior art, should all be included within the scope of protection of the present invention.

Claims

1. A dynamic arch support sole, characterized by: include: upper midsole (100); and An arch support block (200) is compounded below the upper midsole (100) and corresponds to the arch of the foot. The arch support block (200) is made of a shear thickening material and has a higher hardness than the upper midsole (100) when not under stress. The inner side wall (210) and the outer side wall (220) of the arch support block (200) in the left-right direction extend upward in an arch shape along the front-back direction to form a side wall (222) higher than the middle part of the arch support block (200) in the left-right direction, and define a supporting area (230) adapted to the shape of the arch of the foot on the upper side surface of the arch support block (200); The outer side wall (220) is recessed toward the inner side wall (210) and is provided with a hollow groove (240) extending in the front-to-back direction. The hollow groove (240) is provided with a plurality of support arms (245) extending in the left-right direction and arranged in the front-to-back direction. The support arms (245) divide the hollow groove (240) into a plurality of hollow holes (247) arranged in the front-to-back direction and not connected to each other. The inner side wall (210) is protruding and is provided with a plurality of first reinforcing ribs (250) extending in the up-down direction to connect the upper and lower edges of the inner side wall (210) and arranged in the front-to-back direction.

2. The dynamic arch support sole according to claim 1, wherein: The outer side wall (220) is formed by the hollow groove (240) into a first groove wall (241) located at the lower side and a second groove wall (242) located at the upper side, wherein the first groove wall (241) extends perpendicularly to the up-down direction, and the second groove wall (242) includes a first wall surface (243) extending perpendicularly to the up-down direction and a second wall surface (244) connected to the first wall surface (243) and extending from bottom to top in a curved manner; the second wall surface (244) is located on the outer side of the first wall surface (243) relative to the groove bottom of the hollow groove (240), and the support arm (245) extends on the second wall surface (244) to form a second reinforcing rib (246) located on the outer side wall (220).

3. The dynamic arch support sole according to claim 2, wherein: The second reinforcing rib (246) extends upward to the upper edge of the outer side wall (220).

4. The dynamic arch support sole according to claim 3, wherein: The first reinforcing rib (250) and the second reinforcing rib (246) extend obliquely in the vertical direction in the portions before and after the highest points of the upper edges of the inner wall (210) and the outer wall (220), respectively, toward the front and toward the rear.

5. The dynamic arch support sole according to claim 3, wherein: The arch support block (200) is formed in one piece in the left-right direction by an inner support portion (261) close to the inner side and an outer support portion (262) close to the outer side; the front edge (264) and the rear edge (265) of the arch support block (200) are curved and convex toward the rear and the front, respectively, and the line connecting the two closest positions in the front-back direction constitutes a dividing line (263) between the inner support portion (261) and the outer support portion (262); the dividing line (263) between the inner support portion (261) and the outer support portion (262) is closer to the outer side wall (220) in the left-right direction.

6. The dynamic arch support sole according to claim 5, characterized in that: The position of the bottom of the hollow groove (240) in the left-right direction does not exceed the boundary line (263) between the inner support portion (261) and the outer support portion (262).

7. The dynamic arch support sole according to claim 5, wherein: The upper surface of the arch support block (200) is provided with a plurality of first interlocking portions (271) at the portion of the inner support portion (261); the lower surface of the upper midsole (100) is correspondingly provided with a plurality of second interlocking portions (111); the first interlocking portions (271) and the second interlocking portions (111) are suitable for interlocking with each other when the arch support block (200) is composited with the upper midsole (100).

8. A dynamic arch support sole as claimed in claim 3, characterized in that On a projection surface perpendicular to the left-right direction, the projection shape of the outer side wall (220) is located within the projection shape of the inner side wall (210) in the front-back direction.

9. A dynamic arch support sole as claimed in claim 8, characterized in that On a projection surface perpendicular to the left-right direction, an upper edge of the projection shape of the inner side wall (210) is higher than an upper edge of the projection shape of the outer side wall (220).

10. A shoe with dynamic arch support, comprising a shoe upper, characterized in that: It also includes a sole with dynamic arch support as described in any one of claims 1 to 9, and the upper is compounded on the sole.

Images