A sole and shoe with arch support

Abstract

The utility model discloses a kind of shoe sole and shoe with arch support, shoe sole includes upper midsole;And arch support block, it is compounded below upper midsole and corresponds to arch part, and its hardness is higher than the hardness of upper midsole;Arch support block includes: main part, it extends to adapt and support the transverse arch of metatarsal bone rear area of sole bottom;Inboard support part, it is located inboard main part and from front to back arch-shaped curved extension, to adapt and support the inboard longitudinal arch of sole bottom;And outboard support part, it is located outboard main part and from front to back arch-shaped curved extension, to adapt and support the outboard longitudinal arch of sole bottom;Wherein, inboard support part and outboard support part are opposite main part and stretch out backward, and form the department of giving room between the two;Upper midsole is equipped with the support part of position and shape adaptation with the department of giving room, the lower surface of support part is flush with the lower surface of arch support block.This shoe sole and shoe using this shoe sole can effectively support arch of children's foot.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, specifically to a shoe sole and shoe with arch support. Background Technology

[0002] The healthy development of children's feet is crucial for their posture, motor skills, and long-term bone health. The arch of the foot, as an important structure of the sole, bears multiple physiological functions, including cushioning impacts, supporting weight, maintaining balance, and assisting in walking, running, and jumping. However, because children's skeletal and ligament systems are not yet fully developed, their arch structures are relatively weak. Furthermore, some children have congenital flat feet or acquired developmental problems, making their arches prone to fatigue, collapse, and even pain during daily activities and sports. Therefore, there is a need for footwear products that can provide support for children's arches. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide a sole and shoe with arch support that can effectively support the arch of a child's foot.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Technical Solution 1: A shoe sole with arch support, comprising an upper midsole; and an arch support block, which is composited below the upper midsole and corresponds to the arch portion, and whose hardness is higher than that of the upper midsole; the arch support block comprises: a main body extending laterally to adapt to and support the transverse arch of the area behind the metatarsals of the foot; a medial support portion located inside the main body and extending in an arched shape from front to back to adapt to and support the medial longitudinal arch of the foot; and a lateral support portion located outside the main body and extending in an arched shape from front to back to adapt to and support the lateral longitudinal arch of the foot; wherein the medial support portion and the lateral support portion extend rearward relative to the main body and form a clearance portion between them; the upper midsole is provided with a support portion adapted to the position and shape of the clearance portion, and the lower surface of the support portion is flush with the lower surface of the arch support block.

[0006] Technical Solution 2 based on Technical Solution 1: In the foot arch support block, the inner support part and the outer support part are smoothly connected to the upper surface of the main body, and the upper edges of the two are always higher than the upper surface of the main body at the corresponding lateral position.

[0007] Technical Solution 3 based on Technical Solution 1: In the foot arch support block, the highest point of the upper edge of the inner support part is higher than the highest point of the upper edge of the outer support part.

[0008] Technical Solution 4 based on Technical Solution 1: The inner and outer sides of the arch support block are flush with the inner and outer sides of the upper midsole in corresponding longitudinal positions.

[0009] Technical Solution 5 based on Technical Solution 4: The inner and outer sides of the foot arch support block are recessed inward and provided with several grooves arranged from front to back.

[0010] Technical Solution Six based on Technical Solution Five: The size and area of ​​the settling tank are positively correlated with the height of its location.

[0011] Technical Solution Seven based on Technical Solution One: In the foot arch support block, the rear end of the inner support part is further back than the rear end of the outer support part.

[0012] Technical solution eight based on technical solution one: The contact surface between the upper surface of the arch support block and the lower surface of the upper midsole at least partially joint is an arc surface.

[0013] Technical Solution Nine, based on Technical Solution One: The outsole with arch support further includes a lower outsole, which is located below the upper midsole and the arch support block and at least completely covers the arch support block. The inner support portion of the arch support block has an upwardly arched, recessed support notch at its bottom side. The lower outsole has a support flange that matches the position and shape of the support notch, and the support flange extends into the support notch and connects with the arch support block.

[0014] In addition, this utility model also provides technical solution ten: a shoe with arch support, comprising an upper and an arch support sole according to any one of the aforementioned technical solutions one to nine, wherein the upper is composite to the sole.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0016] Technical solution one provides a shoe sole with arch support. By incorporating an arch support block with a higher hardness than the upper midsole and embedding it beneath the upper midsole, precisely corresponding to the arch area, it can provide stable and effective physical support for the arch. This difference in hardness allows the arch support block to bear the main support function, resisting the tendency of the arch to collapse under weight due to gravity and ground reaction forces.

[0017] The main body of the arch support block extends laterally, providing necessary support for the transverse arch in the area behind the metatarsals. This helps maintain the normal physiological curvature of the forefoot, distributing pressure on the forefoot during standing and movement, and preventing excessive pressure concentration. The medial and lateral support sections are located on the medial and lateral sides of the main body, respectively, and both extend in an arched shape from front to back. This shape precisely matches the natural physiological curvature of the medial and lateral longitudinal arches of the human foot. Through this zoned arched support design, comprehensive coverage and independent support for the three main arches of the foot—the transverse arch, the medial longitudinal arch, and the lateral longitudinal arch—are ensured.

[0018] Specifically, in this invention, the inner and outer support portions extend rearward relative to the main body, forming a clearance portion between them. Simultaneously, the upper midsole has a corresponding support portion whose position and shape match this clearance portion, and the lower surface of this upper midsole support portion is flush with the lower surface of the arch support block. The synergistic effect of this set of structural features brings several beneficial results: First, the formation of the clearance portion provides a buffer space for certain pressure-sensitive areas in the midfoot or areas requiring a certain degree of flexion during movement, avoiding direct and continuous pressure from the rigid arch support block material, thus significantly improving wearing comfort. Second, the support portion, made of a relatively soft upper midsole material, fills this clearance portion, not only compensating for structural gaps but, more importantly, ensuring its lower surface is flush with the lower surface of the arch support block. This design guarantees the overall flatness and structural continuity of the sole's lower surface in the midfoot area. This flatness is crucial for a stable connection with the underlying outsole, and also provides a consistent and comfortable ground feel in some lightweight designs without an outsole. Furthermore, this structural combination optimizes the material distribution in the midsole without sacrificing support strength in the critical arch area. The reduced use of rigid materials by relocating the arch support block, while the upper midsole support is filled with a lighter, more flexible material, contributing to the overall lightweight design of the outsole. Simultaneously, the flexible material filling in this area of ​​the upper midsole provides additional cushioning, further enhancing wearing comfort.

[0019] Therefore, the arch support sole provided by this technical solution can not only effectively support the arch of children's feet, but also further ensure wearing comfort and the overall structural stability of the sole.

[0020] In technical solution two, the upper surfaces of the medial and lateral support sections of the arch support block are further defined to be smoothly connected to the main body. This smooth geometric transition avoids stress concentration that may occur at structural joints due to abrupt shape changes. Stress concentration is a common cause of material fatigue and structural damage. A smooth transition allows stress to be distributed more evenly on the surface of the component, thereby improving the overall structural strength and fatigue resistance of the arch support block and extending its service life. More importantly, from a wearing experience perspective, this smooth transition eliminates any sharp edges or abrupt steps, making the contact surface between the sole of the foot and the support structure softer and reducing the generation of local high-pressure points, thus significantly improving comfort during prolonged wear. In addition, this technical solution also defines that the upper edges of the medial and lateral support sections are always higher than the upper surface of the main body at the corresponding lateral position. Since the main body primarily supports the relatively gentle transverse arch, while the medial and lateral support sections support the more significantly taller longitudinal arch, this height difference design ensures that the medial and lateral longitudinal arches receive more adequate and active lifting support than the transverse arch. This aligns with the differences in physiological height and support requirements of various parts of the human foot arch, making the support for the longitudinal arch more effective, better maintaining its normal physiological curvature, and preventing collapse.

[0021] In Technical Solution 3, the highest point of the upper edge of the medial support portion of the arch support block is further defined as being higher than the highest point of the upper edge of the lateral support portion. This feature precisely adapts to the important anatomical characteristic that the physiological height of the medial longitudinal arch of the human foot is usually significantly greater than that of the lateral longitudinal arch. By providing this asymmetrical support that matches the natural height difference of the arch, the normal curvature of the medial longitudinal arch can be maintained more effectively, preventing excessive collapse under weight. This has a positive corrective and preventive effect on controlling pronation caused by insufficient medial arch support, and helps improve the biomechanical efficiency of gait. At the same time, this support design, which better conforms to the individual foot shape, further enhances the personalization of the support and the comfort of wearing it.

[0022] In technical solution four, the medial and lateral sides of the arch support block are aligned with the medial and lateral sides of the upper midsole in their corresponding longitudinal positions. This structural feature creates a smooth and continuous transition in the side profile of the sole at the junction of the arch support block and the upper midsole. This smooth side profile not only makes the overall appearance of the sole cleaner, smoother, and more aesthetically pleasing, but also further enhances the support effect of the arch support block on the upper midsole.

[0023] In technical solution five, several recessed grooves arranged from front to back are further defined on the inner and outer sides of the arch support block. These grooves offer several beneficial effects: First, while ensuring the main body of the arch support block provides core support, the grooves effectively remove some material, thus reducing the material usage of the arch support block itself and consequently lowering the overall weight of the sole, making it lighter and reducing energy consumption during exercise. Second, these grooves distributed along the sides allow for targeted adjustment of the local stiffness of the arch support block. By changing the depth, width, and spacing of the grooves, the originally rigid arch support block can be given a degree of controlled deformation in specific areas. This allows the arch support block to provide stable support while better adapting to the complex three-dimensional movements of the foot during walking, running, and other dynamic processes, improving the flexibility of the sole and its responsiveness to foot dynamics, thereby enhancing comfort. In addition, when subjected to lateral impacts, these trough structures may also disperse and absorb some of the impact energy through their own slight deformation, thus playing a certain role in buffering and protection.

[0024] In Technical Solution Six, the size of the recessed groove is further defined as positively correlated with the height of its location. This means that larger recessed grooves are used in areas where the arch support block is taller (i.e., with more material and relatively stronger initial rigidity), while smaller recessed grooves are used in areas where the arch support block is shorter (with less material and relatively weaker initial rigidity). This design allows for more precise control over the material distribution and structural performance of the arch support block. The technical effect is that in areas requiring strong support and with thicker material (such as near the apex of the longitudinal arch), larger recessed grooves can effectively reduce weight and moderately adjust the rigidity of that area, preventing excessive stiffness that could affect comfort. Simultaneously, in relatively weak or peripheral areas of the arch support block, smaller recessed grooves can achieve a certain degree of weight reduction while retaining sufficient material to maintain necessary structural strength and connection stability. Therefore, this recessed groove design, positively correlated with height, achieves an optimized balance between lightweighting, structural strength, and dynamic flexibility, resulting in more rational performance of the arch support block.

[0025] In technical solution seven, the rear end of the medial support portion of the arch support block is positioned further back than the rear end of the lateral support portion. This structural feature is based on the anatomical morphology of the medial longitudinal arch of the human foot, which typically extends further back than the lateral longitudinal arch. By extending the support range of the medial support portion further towards the heel, more complete and continuous support can be provided for the posterior part of the medial longitudinal arch, especially the area near the heel. This is significant for stabilizing the calcaneus and controlling excessive pronation (internal rotation) that may occur during walking and running. A stable rearfoot is the foundation of an efficient gait and can reduce abnormal stress transmitted to the knee and hip joints due to excessive pronation. Furthermore, during the push-off phase of walking and running, a well-supported posterior part of the medial longitudinal arch helps to more effectively transmit ground reaction forces, thereby improving athletic performance and overall foot protection.

[0026] Technical Solution 8 specifies that the contact surface between the upper surface of the arch support block and the lower surface of the upper midsole is curved at least partially where they meet. This curved contact design, compared to traditional flat-to-flat contact, better disperses contact stress on the joint surfaces of the two components. In flat contact, stress tends to concentrate at edges or uneven contact points, while curved contact distributes force more evenly across the entire contact arc, thus avoiding localized material fatigue, cracking, or premature damage caused by stress concentration, thereby improving the overall durability of the sole. Simultaneously, the curved surface allows for a closer and more natural geometric fit between the arch support block, typically made of rigid materials, and the upper midsole, typically made of relatively flexible materials. This fit reduces the possibility of relative slippage or the formation of micro-gaps during deformation under stress, improving the integrity and stability of the entire midsole structure. Furthermore, during dynamic foot movements, this curved transition facilitates smoother force transmission from the upper midsole to the arch support block, as well as efficient energy transfer between the two, enhancing dynamic comfort and responsiveness.

[0027] In technical solution nine, a lower outsole is further introduced, and it is positioned below the upper midsole and arch support block, at least completely covering the arch support block. The lower outsole provides effective physical protection for the arch support block, preventing wear, scratches, or breakage during direct contact with the ground, thereby extending the lifespan of the entire sole, especially the core support structure. Simultaneously, as the component in direct contact with the ground, the lower outsole provides sufficient friction to achieve slip resistance.

[0028] Furthermore, the arch support block has an upwardly curved, recessed support notch on its inner support side, which mates with a corresponding support flange on the lower outsole. When the lower outsole's support flange extends into the arch support block's support notch and connects with it, an effective mechanical interlocking structure is formed. This interlocking structure greatly enhances the connection strength and torsional rigidity between the arch support block and the lower outsole. During strenuous foot movements, such as sudden stops, rapid turns, or walking on uneven ground, the sole is subjected to complex multidirectional external forces. This interlocking structure effectively prevents separation, misalignment, or relative torsion between the arch support block and the lower outsole, ensuring the overall stability of the midfoot area and the reliable transmission of arch support.

[0029] More importantly, this mechanical interlocking structure is not merely a simple component connection; it substantially integrates the support flange of the lower outsole into and enhances the arch support block's support system. The "upwardly arched, concave support notch" on the bottom side of the inner support section of the arch support block echoes the curvature of the arch, and the curvature of the support notch itself reinforces the support performance of the arch support block on the inner support section. When the "support flange" of the lower outsole is precisely embedded and tightly fitted to the arched inner wall of this notch, the flange transforms from a passive connecting component into an active structural reinforcement element. It not only fills the notch but also mechanically forms a more complete and robust composite support structure with the inner support section of the arch support block, jointly resisting the pressure from the arch. This structural integration directly strengthens the original support function of the arch support block. Meanwhile, this tight engagement greatly limits the minute displacement, deformation, or torsion of the arch support block under complex stress, ensuring that its carefully designed arched and curved support features always act on the wearer's arch in the correct posture and position, guaranteeing precise transmission and continuous effectiveness of support force. Therefore, this organic combination optimizes the mechanical transmission path from the arch to the ground, enhances dynamic support response, and allows the arch support block and the underlying outsole to work more like a cohesive unit to resist excessive arch collapse and maintain the arch's elastic function during exercise, ultimately achieving a more stable, efficient, and durable arch support effect.

[0030] Technical solution ten provides a shoe with arch support, which can provide comprehensive, stable, comfortable and biomechanically compliant arch support for wearers, especially children whose arches are still developing or who have functional arch problems. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is an exploded view of the structure of a shoe sole with arch support according to an embodiment of the present invention. Figure 1 ;

[0033] Figure 2 This is an exploded view of the structure of a shoe sole with arch support according to an embodiment of the present invention. Figure 2 ;

[0034] Figure 3 for Figure 1 Side view of the midfoot arch support block.

[0035] Explanation of key figure labels:

[0036] Upper midsole 10; Support section 11;

[0037] Arch support block 20; main body 21; medial support 22; lateral support 23; clearance part 24; groove 25; support notch 26;

[0038] The lower bottom layer is 30; the supporting flange is 31. Detailed Implementation

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

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

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

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

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

[0044] Example 1

[0045] Embodiment 1 of this utility model relates to a shoe sole with arch support, referring to... Figure 1 and Figure 2 The sole mainly includes an upper midsole 10, an arch support block 20, and may also include a lower outsole 30.

[0046] In this embodiment, the sole includes: an upper midsole 10; and an arch support block 20, which is composited below the upper midsole 10 and corresponds to the arch area, and its hardness is higher than that of the upper midsole 10; the arch support block 20 includes: a main body 21, which extends laterally to adapt to and support the transverse arch of the area behind the metatarsals of the foot; and an inner support 22, which is located inside the main body 21 and extends in an arched shape from front to back to adapt to and support the inner longitudinal arch of the foot. The outer support portion 23 is located outside the main body portion 21 and extends in an arched shape from front to back to adapt to and support the outer longitudinal arch of the foot; wherein the inner support portion 22 and the outer support portion 23 extend backward relative to the main body portion 21 and form a relief portion 24 between them; the upper midsole 10 is provided with a support portion 11 adapted to the position and shape of the relief portion 24, and the lower surface of the support portion 11 is flush with the lower surface of the arch support block 20.

[0047] The upper midsole 10 is the part of the sole that directly or indirectly contacts the user's foot, primarily providing cushioning and wearing comfort. In this embodiment, the upper midsole 10 can be made of a material with good elasticity and cushioning properties, such as ethylene-vinyl acetate copolymer (EVA), polyurethane (PU) foam, or thermoplastic elastomer (TPE) foam particles. Its hardness can be set to a Shore C hardness range of 35 to 50 degrees to ensure sufficient softness and comfort.

[0048] The arch support block 20 is the core component of the shoe sole, composited beneath the upper midsole 10, and primarily distributed in the midfoot region corresponding to the arch of the foot. As clearly observed in the accompanying drawings, the arch support block 20 is a single component with a complex three-dimensional profile. The arch support block 20 has a significantly higher hardness than the upper midsole 10; for example, if made of high-density ethylene-vinyl acetate copolymer (EVA), its Shore C hardness can be set to 60 to 75 degrees. This difference in hardness ensures that the arch support block 20 provides stable and effective support. The arch support block 20 is preferably a one-piece molded structure to ensure structural strength and continuity of support.

[0049] Specifically, refer to Figure 1 and Figure 3 The arch support block 20 includes a main body 21, a medial support 22, and a lateral support 23. The main body 21 is located at the front of the arch support block 20 and extends laterally along the sole. Viewed from above, the front and rear edges of the main body 21 may be slightly curved to better conform to the natural contour of the forefoot metatarsal region. Its shape and curvature are designed to fit and effectively support the transverse arch of the posterior region of the metatarsals. In the medial-lateral direction of the sole, the main body 21 has an upwardly convex, relatively gentle arc to support the physiological curvature of the transverse arch, and its thickness is relatively uniform or has a gentle transition in this area.

[0050] The medial support portion 22 is located inside the main body portion 21 and extends smoothly backward and significantly upward in an arched shape from the area near the inner side of the main body portion 21, forming a robust arm-like structure. Its overall shape precisely conforms to the natural contour of the medial longitudinal arch of the human foot, providing stable and powerful support. Along the anteroposterior direction of the foot, the longitudinal contour of the medial support portion 22 has a significant upward convex arc, the highest point of which is designed to precisely correspond to the apex area of ​​the medial longitudinal arch, thereby effectively supporting the medial longitudinal arch. The width of the medial support portion 22 can gradually transition from the base connected to the main body portion 21 to the rear end or maintain a certain width, and its upper surface is usually designed as a concave curved surface that conforms to the arch of the foot to provide better support and comfort.

[0051] The lateral support portion 23 is located on the outside of the main body portion 21. It also extends smoothly backward and upward in an arched shape from the outer side of the main body portion 21, forming an arm-like structure. Its shape conforms to the contour of the lateral longitudinal arch of the human foot, providing moderate support. Along the anteroposterior direction of the foot, the longitudinal contour of the lateral support portion 23 also has an upwardly convex arc, but its highest point and overall elevation are usually designed to be lower than the highest point and overall elevation of the medial support portion 22, to conform to the anatomical feature of the human foot where the medial longitudinal arch is higher than the lateral longitudinal arch. Its width and upper surface curvature are similar to the medial support portion 22, but it may appear slightly thinner or flatter overall.

[0052] In this embodiment, both the inner support portion 22 and the outer support portion 23 extend rearward relative to the main body portion 21, forming a distinct clearance portion 24 between their rear portions. Viewed from above or below in the accompanying drawings, this clearance portion 24 presents as a roughly U-shaped or V-shaped opening, providing space for the midfoot area and preventing complete coverage by hard material. Correspondingly, the upper midsole 10 has a support portion 11 at a corresponding position. The shape and size of this support portion 11 precisely match the clearance portion 24 on the arch support block 20 and fill within it. Importantly, the lower surface of the support portion 11 of the upper midsole 10 is designed to be flush with the lower surface of the arch support block 20, thereby ensuring the flatness of the lower surface of the midfoot area of ​​the sole.

[0053] To further optimize support and wearing comfort, the inner support portion 22 and outer support portion 23 of the arch support block 20 are smoothly connected to the upper surface of the main body portion 21 via a curved surface without obvious sharp edges, avoiding stress concentration and a foreign body sensation when wearing. Furthermore, the upper edges of the inner support portion 22 and outer support portion 23 remain higher than the upper surface of the main body portion 21 at their corresponding lateral positions throughout the entire front-to-back extension process, ensuring continuous and effective lifting support for the longitudinal arch.

[0054] Reference Figure 1 To further adapt to the shape of the foot, the rear end of the inner support part 22 in the arch support block 20 can be designed to be further back than the rear end of the outer support part 23, that is, the longitudinal length of the inner support arm is slightly greater than that of the outer support arm, so as to more comprehensively support the extended inner longitudinal arch.

[0055] To ensure the aesthetics and structural integrity of the sole side, the inner and outer sides of the arch support block 20 are flush with the inner and outer sides of the upper midsole 10 in corresponding longitudinal positions, forming a smooth sole sidewall.

[0056] To achieve lightweighting and adjust local stiffness, refer to Figure 1 The inner support portion 22 and outer support portion 23 of the arch support block 20 may have several recessed grooves 25 arranged from front to back within their arm-like structures. These recessed grooves 25 are more accurately described as openings or perforations extending through the thickness of the support arm, giving the support arm a grid-like or ribbed skeletal structure. These openings are typically elongated, with their long axis roughly along the extension direction of the support arm. The size and area of ​​these recessed grooves 25 can be designed according to the height of the arch support block 20 at their respective locations. For example, in areas where the arch support block 20 is taller, i.e., where the support arm is thicker, the opening area of ​​the recessed grooves 25 can be correspondingly larger, while in areas with lower height, the opening area of ​​the recessed grooves 25 can be smaller or no recessed grooves 25 may be provided. This achieves optimized material distribution and precise control of performance, achieving weight reduction without significantly sacrificing structural strength.

[0057] The bonding between the upper midsole 10 and the arch support block 20 can be achieved through conventional methods in the art, such as using suitable adhesives for strong bonding, or employing a one-piece injection molding process to combine the two into a single unit. In a preferred embodiment, the contact surfaces of the upper surface of the arch support block 20 and the lower surface of the upper midsole 10 at least partially contacting points are designed as mutually adaptable arc surfaces. This arc surface fit helps with stress dispersion and a tighter bond.

[0058] Reference Figure 1 and Figure 2 The sole of this embodiment may further include a lower outsole 30. This lower outsole 30 is composited below the upper midsole 10 and the arch support block 20, and at least completely covers the arch support block 20 to provide abrasion resistance and slip resistance, and protect the arch support block 20 from direct wear. To enhance the bonding stability and torsional resistance between the arch support block 20 and the lower outsole 30, refer to... Figure 1 Specifically, a support notch 26, arched and recessed upwards, is provided on the bottom side of the inner support portion 22 of the arch support block 20, near its lower edge and inner side. This support notch 26 has a certain longitudinal length and recess depth. Correspondingly, the lower outsole 30 has a support flange 31 at a corresponding position that matches the position and shape of the support notch 26. During assembly, the support flange 31 precisely extends into the support notch 26 and tightly engages with the arch support block 20, forming an effective mechanical interlocking structure.

[0059] The arch support block 20 can be made of a variety of materials with high hardness and good fatigue resistance, such as high-density ethylene-vinyl acetate copolymer (EVA), thermoplastic polyurethane (TPU), nylon, polyether block amide (Pebax®), polypropylene (PP), or glass fiber / carbon fiber reinforced composite materials. The material selection for the upper midsole 10 focuses on cushioning and comfort.

[0060] The arch support sole described in this embodiment provides stable and effective physical support for the arch by incorporating an arch support block 20 with a higher hardness than the upper midsole 10, and placing it beneath the upper midsole 10 and precisely corresponding to the arch area. This difference in hardness allows the arch support block 20 to bear the main support function, counteracting the tendency of the arch to collapse under weight due to gravity and ground reaction forces. The main body 21 of the arch support block 20 extends laterally, providing necessary support for the transverse arch in the area behind the metatarsals, which helps maintain the normal physiological curvature of the forefoot, distributing the pressure on the forefoot during standing and movement, and preventing excessive pressure concentration. The medial support portion 22 and the lateral support portion 23 are located on the medial and lateral sides of the main body 21, respectively, and both extend in an arched shape from front to back. This shape precisely matches the natural physiological curvature of the medial and lateral longitudinal arches of the human foot. This partitioned arched support design ensures comprehensive coverage and independent support for the three main arches of the foot—the transverse arch, the medial longitudinal arch, and the lateral longitudinal arch. Specifically, in this invention, the medial support portion 22 and the lateral support portion 23 extend rearward relative to the main body portion 21, forming a clearance portion 24 between them. Simultaneously, the upper midsole 10 is provided with a support portion 11 that matches the position and shape of this clearance portion 24, and the lower surface of this upper midsole 10 support portion 11 is flush with the lower surface of the arch support block 20. The synergistic effect of this set of structural features brings several beneficial effects: First, the formation of the clearance portion 24 provides a buffer space for certain pressure-sensitive areas in the midfoot or areas requiring a certain degree of flexion during movement, avoiding direct and continuous pressure from the rigid arch support block 20 material, thereby significantly improving wearing comfort. Secondly, the support portion 11, made of a relatively soft upper midsole 10 material, fills this clearance portion 24. This not only fills the structural gap but, more importantly, its lower surface is flush with the lower surface of the arch support block 20. This design ensures the overall flatness and structural continuity of the sole's lower surface in the midfoot area. This flatness is crucial for the subsequent stable integration with the lower outsole 30, and also provides a consistent and comfortable ground feel in some lightweight designs without an outsole. Furthermore, this structural combination optimizes the material distribution in the midfoot without sacrificing the support strength in the critical arch area. The clearance of the arch support block 20 reduces the amount of rigid material used, while the support portion 11 of the upper midsole 10 is filled with a lighter, more flexible material, which helps achieve overall lightweighting of the sole. At the same time, the flexible material filling of the upper midsole 10 in this area also provides additional cushioning, further enhancing wearing comfort. Therefore, the arch support sole involved in this embodiment can not only effectively support the arch of a child's foot, but also further ensure wearing comfort and the overall structural stability of the sole.

[0061] Example 2

[0062] This embodiment provides a shoe with arch support. The shoe includes an upper and a sole with arch support as described in Embodiment 1. The upper is bonded to the sole using conventional shoemaking processes, such as adhesive bonding, stitching, or one-piece injection molding. The specific structure and materials of the upper can be selected according to the type of shoe (e.g., athletic shoe, casual shoe) and design requirements.

[0063] By adopting the sole described in Embodiment 1 above, the shoe of this embodiment can provide effective arch support for the wearer, especially children, which helps to maintain the normal physiological shape of the arch, distribute the pressure on the sole of the foot, and improve wearing comfort and movement stability.

[0064] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A shoe sole with arch support, characterized in that, include: Upper insole (10); and An arch support block (20) is attached to the upper midsole (10) below and corresponds to the arch area, and its hardness is higher than that of the upper midsole (10). The arch support block (20) includes: The main body (21) extends laterally to fit and support the transverse arch of the area behind the metatarsals of the foot; An inner support portion (22), located inside the main body portion (21) and extending in an arched shape from front to back, adapts to and supports the inner longitudinal arch of the foot; and The outer support portion (23) is located outside the main body portion (21) and extends in an arched shape from front to back to fit and support the outer longitudinal arch of the foot. The inner support portion (22) and the outer support portion (23) extend rearward relative to the main body portion (21) and form a clearance portion (24) between them. The upper insole (10) is provided with a support part (11) that is adapted to the position and shape of the relief part (24), and the lower surface of the support part (11) is flush with the lower surface of the arch support block (20).

2. The shoe sole with arch support as described in claim 1, characterized in that, In the foot arch support block (20), the inner support part (22) and the outer support part (23) are smoothly connected to the upper surface of the main body part (21), and their upper edges are always higher than the upper surface of the main body part (21) at the corresponding lateral position.

3. The shoe sole with arch support as described in claim 1, characterized in that, In the foot arch support block (20), the highest point of the upper edge of the inner support part (22) is higher than the highest point of the upper edge of the outer support part (23).

4. The shoe sole with arch support as described in claim 1, characterized in that, The inner and outer sides of the arch support block (20) are flush with the inner and outer sides of the upper midsole (10) in corresponding longitudinal positions.

5. A shoe sole with arch support as described in claim 4, characterized in that, The inner and outer sides of the foot arch support block (20) are recessed inward and provided with several grooves (25) arranged from front to back.

6. The sole with arch support as described in claim 5, characterized in that, The size and area of ​​the settling tank (25) are positively correlated with the height of the part in which it is located.

7. The sole with arch support as described in claim 1, characterized in that, In the foot arch support block (20), the rear end of the inner support part (22) is further back than the rear end of the outer support part (23).

8. The sole with arch support as described in claim 1, characterized in that, The contact surface between the upper surface of the arch support block (20) and the lower surface of the upper midsole (10) at least partially joint is an arc surface.

9. A shoe sole with arch support as described in claim 1, characterized in that, It also includes a lower outsole (30), which is below the upper midsole (10) and the arch support block (20) and at least completely covers the arch support block (20); the inner support part (22) of the arch support block (20) has an upward arched and recessed support notch (26) at its bottom side position, and the lower outsole (30) has a support flange (31) adapted to the position and shape of the support notch (26), the support flange (31) extends into the support notch (26) and connects with the arch support block (20).

10. A shoe with arch support, comprising an upper, characterized in that, It also includes a sole with arch support as described in any one of claims 1-9, wherein the upper is composite to the sole.

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