Sole with arch support and shoe

Abstract

The invention discloses a sole with an arch support and a shoe. The sole comprises an upper insole; the foot arch supporting block is compounded below the upper-layer insole and corresponds to the foot arch part, and the hardness of the foot arch supporting block is higher than that of the upper-layer insole; the foot arch supporting block comprises a main body part which transversely extends to be matched with and support a transverse arch of the area behind the foot sole metatarsal bone; the inner side supporting part is located on the inner side of the main body part and extends in an arch-shaped bending mode from front to back so as to be matched with and support the inner side longitudinal arch of the sole; the outer side supporting part is located on the outer side of the main body part and extends in an arch-shaped bending mode from front to back so as to be matched with and support an outer side longitudinal arch of the sole; wherein the inner side supporting part and the outer side supporting part extend backwards relative to the main body part, and a receding part is formed between the inner side supporting part and the outer side supporting part; the upper-layer insole is provided with a supporting part matched with the receding part in position and shape, and the lower surface of the supporting part is flush with the lower surface of the foot arch supporting block. The shoe sole and the shoe with the shoe sole can effectively support the foot arch of the foot of a child.

Description

Technical Field

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

[0002] The healthy development of children's feet is crucial to their body posture, the formation of athletic ability and long-term bone health. As an important structure of the sole, the arch of the foot is responsible for multiple physiological functions such as buffering ground impact, supporting body weight, maintaining body balance, and assisting walking, running and jumping. However, since children's bones and ligament systems are not yet fully developed, the arch structure is relatively weak. In addition, some children have congenital flat feet or acquired maldevelopment, which makes the arch of the foot easy to fatigue, collapse, and even cause pain during daily activities and exercise. Therefore, there is a need for a footwear product that can support the arch of children's feet. 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 a shoe with arch support, which can effectively support the arch of a child's foot.

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

[0005] Technical solution 1: A sole with arch support, comprising an upper midsole; and an arch support block, which is compounded below the upper midsole and corresponds to the arch position, and whose hardness is higher than that of the upper midsole; the arch support block comprises: a main body, which extends laterally to adapt to and support the transverse arch in the posterior area of ​​the metatarsal bones of the plantar; an inner support portion, which is located on the inner side of the main body and extends in an arch shape from front to back to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion, which is located on the outer side of the main body and extends in an arch shape from front to back to adapt to and support the outer longitudinal arch of the plantar; wherein the inner support portion and the outer support portion extend rearward relative to the main body, and a yield portion is formed between the two; the upper midsole is provided with a support portion adapted to the position and shape of the yield 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 arch support block, the medial support portion, the lateral support portion and the upper surface of the main body portion are smoothly transitioned and connected, and the upper edges of the two are always higher than the upper surface of the main body portion at the corresponding lateral position.

[0007] Technical solution three based on technical solution one: in the arch support block, the highest point of the upper edge of the medial support portion is higher than the highest point of the upper edge of the lateral support portion.

[0008] Technical solution four based on technical solution one: The inner side surface and the outer side surface of the arch support block are flush with the inner side surface and the outer side surface of the upper midsole at corresponding longitudinal positions respectively.

[0009] Technical solution five based on technical solution four: The inner side surface and the outer side surface of the arch support block are recessed inwardly with a plurality of sinking grooves arranged from front to back.

[0010] Technical solution six based on technical solution five: The size area of the sinking groove is positively correlated with the height dimension of the part where it is located.

[0011] Technical solution seven based on technical solution one: In the arch support block, the rear end of the inner support part is more backward than the rear end of the outer support part.

[0012] Technical solution eight based on technical solution one: The upper surface of the arch support block and the lower surface of the upper midsole are arc surfaces at least at the contact surfaces of some joints.

[0013] Technical solution nine based on technical solution one: The sole with arch support further includes a lower outsole, which is compounded below the upper midsole and the arch support block and at least completely covers the arch support block. The inner support part of the arch support block is provided with a support notch that is arched and recessed upward at the bottom side position, and the lower outsole is provided with a support flange that is adapted to the position and shape of the support notch, and the support flange extends into the support notch and is in contact with the arch support block.

[0014] In addition, the present invention also provides technical solution ten: A shoe with arch support, which includes a shoe upper, and a sole with arch support according to any one of the foregoing technical solutions one to nine, and the shoe upper is compounded on the sole.

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

[0016] Technical solution one provides a sole with arch support. By setting an arch support block with a hardness higher than that of the upper midsole, and compounding it below the upper midsole and precisely corresponding to the arch part, it can provide stable and effective physical support for the arch. This hardness difference enables the arch support block to undertake the main support function and counteract the tendency of the arch to collapse due to the action of gravity and ground reaction force during weight bearing.

[0017] The main body of the arch support block extends laterally, providing the necessary support for the transverse arch in the posterior area of ​​the metatarsal bones of the plantar plantar, which helps maintain the normal physiological curvature of the forefoot, disperses the pressure on the forefoot during standing and movement, and avoids excessive concentration of pressure. The medial support part and the lateral support part 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 accurately adapts to the natural physiological curvature of the medial and lateral longitudinal arches of the plantar ... arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, medial and lateral longitudinal arch, media

[0018] In particular, the medial support portion and the lateral support portion of the present invention extend backward relative to the main body, and a clearance portion is formed between the two. At the same time, the upper midsole is correspondingly provided with a support portion that is adapted to the position and shape of the clearance portion, and the lower surface of the upper midsole support portion is flush with the lower surface of the arch support block. The synergistic effect of this group of structural features brings about many beneficial effects: first, the formation of the clearance portion provides a buffer space for some areas in the middle of the sole that are more sensitive to pressure or areas that require a certain degree of flexion activity during exercise, avoiding direct and continuous pressure from the hard arch support block material, thereby significantly improving the comfort of wearing. Secondly, the support portion composed of the relatively soft upper midsole material fills the clearance portion, which not only makes up for the structural vacancy, but more importantly, its lower surface is flush with the lower surface of the arch support block. This design ensures the overall flatness and structural continuity of the lower surface of the sole in the midfoot area. This flatness is crucial for the subsequent stable combination with the lower outsole, or in some lightweight designs without an outsole, it can also provide a consistent and comfortable touch. Furthermore, this structural combination can optimize the material distribution in the middle of the sole without sacrificing the support strength of the key arch area. The arch support block gives way to reduce the amount of hard materials, while the upper midsole support part is filled with lighter flexible materials, which helps to achieve the overall lightweight of the sole. At the same time, the flexible material filling in the upper midsole can also provide additional cushioning effect in this area, further improving wearing comfort.

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

[0020] In Technical Solution 2, it is further defined that the upper side surfaces of the inner support part, the outer support part and the main body part in the arch support block are connected by a smooth transition. This smooth geometric transition avoids the stress concentration phenomenon that may occur due to sudden shape changes at the structural connection. Stress concentration is a common cause of material fatigue and structural damage. Through the smooth transition, the stress can be more evenly distributed on the surface of the component, thereby improving the overall structural strength and anti-fatigue performance of the arch support block and extending its service life. More importantly, from the perspective of wearing experience, this smooth transition eliminates the possible sharp edges or abrupt steps, making the contact surface between the sole and the support structure softer, reducing the generation of local high-pressure points, and thus significantly enhancing the comfort during long-term wearing. In addition, this technical solution also defines that the upper edges of the inner support part and the outer support part are always higher than the upper surface of the main body part at the corresponding transverse position. Since the main body part mainly supports the relatively gentle transverse arch, while the inner and outer support parts respectively support the longitudinal arch with a more prominent height, the design of this height difference ensures that the inner and outer longitudinal arches can obtain more sufficient and active lifting support than the transverse arch. This conforms to the differences in the physiological height and support requirement levels of each part of the human foot arch, making the support for the longitudinal arch more effective, being able to better maintain its normal physiological arc and prevent collapse.

[0021] In Technical Solution 3, it is further defined that the highest point of the upper edge of the inner support part in the arch support block is higher than the highest point of the upper edge of the outer support part. This feature precisely adapts to the important anatomical feature that the physiological height of the inner longitudinal arch of the human foot is usually significantly greater than the height of the outer longitudinal arch. By providing this asymmetric support that matches the natural height difference of the arch, it can more effectively maintain the normal arc of the inner longitudinal arch and prevent it from collapsing excessively when bearing weight. This has a positive corrective and preventive effect on controlling the valgus foot caused by insufficient inner arch support and helps to improve the biomechanical efficiency of gait. At the same time, this support design that better fits the individual foot shape also further enhances the personalization level of the support and the wearing comfort.

[0022] In Technical Solution 4, it is defined that the inner side surface and the outer side surface of the arch support block are respectively flush with the inner side surface and the outer side surface of the upper midsole at the corresponding longitudinal positions. This structural feature makes the side contour of the sole form a smooth and continuous transition in the combined area of the arch support block and the upper midsole. This smooth side contour not only makes the overall appearance of the sole cleaner, smoother and more beautiful, but also further enhances the support effect of the arch support block on the upper midsole.

[0023] In Technical Solution Five, it is further defined that the inner side surface and the outer side surface of the arch support block are recessed inwardly with a plurality of sinking grooves arranged from front to back. The setting of these sinking grooves brings beneficial effects in many aspects: First, on the premise of ensuring that the main part of the arch support block provides the core support function, the formation of the sinking grooves is equivalent to removing some materials, thereby effectively reducing the material consumption of the arch support block itself, further reducing the overall weight of the sole, making it more comfortable to wear and reducing the energy consumption during exercise. Second, these sinking grooves distributed along the side surface can purposefully adjust the local stiffness of the arch support block. By changing the depth, width and spacing of the sinking grooves, a certain degree of controlled deformation ability can be introduced into the originally relatively rigid arch support block in specific areas. This enables the arch support block to not only provide stable support but also better adapt to the complex three-dimensional movements of the foot during dynamic processes such as walking and running, improving the flexibility of the sole and the responsiveness to the dynamics of the foot, thus enhancing the comfort. In addition, when these sinking groove structures are subjected to lateral impact forces, they may also disperse and absorb part of the impact energy through their own small deformations, playing a certain buffering and protective role.

[0024] In Technical Solution Six, it is further defined that the size area of the sinking groove is positively correlated with the height dimension of the part where it is located. This means that in areas where the arch support block is relatively high, that is, there is more material and relatively strong original rigidity, sinking grooves with larger size areas are set; while in areas where the arch support block is relatively low, with less material and relatively weak original rigidity, sinking grooves with smaller size areas are set. This design realizes a more refined regulation of the material distribution and structural performance of the arch support block. The technical effect is that in areas that require strong support and are relatively thick in material (such as near the apex of the longitudinal arch), the weight can be effectively reduced by setting larger sinking grooves, and the stiffness of this area can be moderately adjusted to avoid being too rigid and affecting comfort. At the same time, in relatively weak or marginal parts of the arch support block, by setting smaller sinking grooves, a certain degree of lightweighting can be achieved while retaining enough material to maintain the necessary structural strength and connection stability. Therefore, this design of sinking grooves that is positively correlated with the height dimension can achieve an optimal balance among lightweighting, structural strength and dynamic flexibility as a whole, making the performance of the arch support block more reasonable.

[0025] In Technical Solution Seven, it is defined that in the arch support block, the rear end of the inner support portion is further back than the rear end of the outer support portion. This structural feature is based on the anatomical shape of the medial longitudinal arch of the human foot, and its backward extension range is usually larger than that of the lateral longitudinal arch. By extending the support range of the inner support portion further towards the heel, it can provide more complete and continuous support for the posterior part of the medial longitudinal arch, especially the area near the heel. This is of great significance for stabilizing the calcaneus and controlling the excessive pronation (internal rotation) that may occur during walking and running. A stable rear foot is the basis for an efficient gait and can reduce the abnormal stress transmitted to the knee and hip joints due to excessive pronation of the foot. In addition, during the push-off phase of walking and running, a well-supported posterior part of the medial longitudinal arch helps to more effectively transmit the ground reaction force, thereby improving the sports performance and the overall protection effect of the foot.

[0026] In Technical Solution Eight, it is defined that the contact surface between the upper surface of the arch support block and the lower surface of the upper midsole is an arc surface at least at some of the joints. This arc surface contact design can better disperse the contact stress on the joint surface of the two components compared to the traditional plane-to-plane contact. In plane contact, the stress is easily concentrated at the edges or uneven contact points, while arc surface contact can distribute the force more evenly over the entire contact arc, thus avoiding local material fatigue, cracking or premature damage caused by stress concentration, and further improving the overall durability of the sole. At the same time, the arc surface fit can enable a closer and more natural geometric fit between the arch support block usually made of a hard material and the upper midsole usually made of a relatively flexible material. This fit reduces the possibility of relative sliding or the generation of small gaps when the two are deformed under load, enhancing the integrity and stability of the entire midsole structure. Moreover, during dynamic activities of the foot, this arc surface transition helps to achieve a smoother force conduction from the upper midsole to the arch support block and an effective energy transition between the two, enhancing the dynamic comfort and sports responsiveness of wearing.

[0027] In Technical Solution Nine, a lower outsole is further introduced and defined to be compounded below the upper midsole and the arch support block and at least completely cover the arch support block. The setting of the lower outsole first provides effective physical protection for the arch support block, preventing it from being worn, scratched or broken during direct contact with the ground, thereby extending the service life of the entire sole, especially the core support structure. At the same time, as the component in direct contact with the ground, the lower outsole undertakes the function of providing sufficient friction to achieve anti-slip.

[0028] Moreover, there is a cooperation relationship between the support notch that is arched and sunken upward on the bottom side of the inner support part of the arch support block and the support flange on the lower outsole that is adapted to the corresponding position and shape. When the support flange of the lower outsole extends into the support notch of the arch support block and contacts the arch support block, an effective mechanical interlocking structure is formed between the two. This interlocking structure greatly enhances the connection strength and anti-torsion rigidity between the arch support block and the lower outsole. When the foot performs strenuous movements, such as sudden stops, quick turns, or walking on uneven ground, the sole is subjected to complex multi-directional external forces. This interlocking structure can effectively prevent the separation, dislocation, or relative torsion between the arch support block and the lower outsole, ensuring the overall stability of the midfoot part of the sole and the reliable transmission of the arch support effect.

[0029] More importantly, this mechanical interlocking structure is not just a simple connection of components, but rather enables the support flange of the lower outsole to substantially integrate into and enhance the support system of the arch support block. The "support notch that is arched and sunken upward" on the bottom side of the inner support part of the arch support block echoes the arch curvature in terms of its shape, and the curved shape of this support notch itself is a reinforcement of the support performance of the arch support block at the inner support part. When the "support flange" of the lower outsole is precisely embedded and closely fits against the arched inner wall of this notch, the flange transforms from a passive connection component into an active structural strengthening element. It not only fills the notch but also forms a more complete and robust composite support form with the inner support part of the arch support block in terms of mechanics, jointly resisting the pressure from the arch, so that the original support function of the arch support block is directly strengthened due to the integration of this structure. At the same time, this tight engagement greatly restricts the small displacements, deformations, or torsions of the arch support block under complex forces, ensuring that its carefully designed arch, curved surface, and other support features can always act on the wearer's arch in the correct posture and position, guaranteeing the precise transmission and continuous effectiveness of the support force. Therefore, this organic combination method optimizes the mechanical transmission path from the arch to the ground, improves the dynamic support response, enables the arch support block and the lower outsole to more like a whole unit working together to resist the excessive collapse of the arch, and maintains the elastic function of the arch during movement, 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 biomechanics-principle-compliant arch support for the wearer, especially for children whose arches are still in the development stage or have arch functional problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 Structural explosion schematic of the sole with arch support involved in the embodiments of the present invention Figure 1 ;

[0033] Figure 2 Structural explosion schematic of the sole with arch support involved in the embodiments of the present invention Figure 2 ;

[0034] Figure 3 is Figure 1 Side view of the structure of the mid-arch support block in

[0035] Main reference numeral description:

[0036] Upper midsole 10; support part 11;

[0037] Arch support block 20; main body part 21; inner support part 22; outer support part 23; relief part 24; sinking groove 25; support notch 26;

[0038] Lower outsole 30; support flange 31. Specific embodiments

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are the 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 those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0040] In the claims, the specification and the above-mentioned drawings of the present invention, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., are used to distinguish different objects and not for describing a specific order.

[0041] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., 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 protection scope of the present invention.

[0042] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0043] 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".

[0044] Example 1

[0045] Embodiment 1 of the present invention relates to a 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 compounded below the upper midsole 10 and corresponds to the arch position, 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 rear area of ​​the metatarsal bones of the plantar; an inner support portion 2211, which is located on the inner side of the main body 21 and extends from front to back in an arch shape to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion 2212, which is located on the inner side of the main body 21 and extends from front to back in an arch shape to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion 2213, which is located on the inner side of the main body 21 and extends from front to back in an arch shape to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion 2214, which is located on the inner side of the main body 21 and extends from front to back in an arch shape to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion 2215, which is located on the inner side of the main body 21 and extends from front to back in an arch shape to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion 2216, which is located on the inner side of the main body 21 and extends from front to back in an arch shape to adapt to and support the inner longitudinal arch of the plantar; and an outer support portion 2217, which is located on the inner side of the main body 21 and is located on the inner side of the main body 21 and is located The side support portion 2311 is located on the outside of the main body portion 21 and extends in an arch shape from front to back to adapt to and support the lateral longitudinal arch of the sole; wherein the medial support portion 2211 and the lateral support portion 2311 extend rearward relative to the main body portion 21 and form a yield portion 24 therebetween; the upper midsole 10 is provided with a support portion 11 adapted to the position and shape of the yield portion 24, and the lower surface of the support portion 11 is flush with the lower surface of the arch support block 20.

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

[0048] The arch support block 20 is the core component of the sole. It is compounded below the upper midsole 10 and is mainly distributed in the part of the sole corresponding to the human arch, that is, the mid-waist area. It can be clearly observed from the drawings that the arch support block 20 presents as an independent component with a complex three-dimensional contour. The hardness of the arch support block 20 is significantly higher than that of the upper midsole 10. For example, if it is made of high-density ethylene-vinyl acetate copolymer (EVA), its Shore C hardness can be set in the range of 60 to 75 degrees. This hardness difference ensures that the arch support block 20 can provide stable and effective support. The arch support block 20 is preferably an integrally formed structure to ensure its structural strength and the continuity of support.

[0049] Specifically, referring to Figure 1 and Figure 3 , the arch support block 20 includes a main body portion 21, an inner support portion 2211, and an outer support portion 2311. The main body portion 21 is located at the front of the arch support block 20 and extends transversely along the sole. When observed from a top view, the leading edge and the trailing edge of the main body portion 21 can be slightly arc-shaped to better fit the natural contour of the metatarsal region of the forefoot. Its shape and curvature design are intended to adapt to and effectively support the transverse arch in the region behind the metatarsals of the sole. In the inner and outer directions of the sole, the main body portion 21 has a gently upwardly convex arc to support the physiological curvature of the transverse arch, and its thickness is relatively uniform or has a gentle transition in this region.

[0050] The inner support portion 2211 is located on the inner side of the main body portion 21 and smoothly extends backward and significantly upward in an arched shape from the region near the inner side of the main body portion 21, forming a strong arm-like structure. Its overall shape precisely adapts to the natural contour of the medial longitudinal arch of the human sole to provide stable and strong support. Along the front-back direction of the sole, the longitudinal contour of the inner support portion 2211 has a significantly upwardly convex arc, and the highest point of this arc is designed to precisely correspond to the apex region of the medial longitudinal arch, thereby effectively lifting the medial longitudinal arch. The width of the inner support portion 2211 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 groove-shaped curved surface that fits the arch to provide better wrapping and comfort.

[0051] The lateral support portion 2311 is located on the outside of the main body 21, and also smoothly extends backward and upward in an arched shape from the area close to the outside of the main body 21, also forming an arm-like structure. Its shape is adapted to the contour of the lateral longitudinal arch of the human plantar foot, providing appropriate support. Along the front-to-back direction of the plantar foot, the longitudinal contour of the lateral support portion 2311 also has an upwardly convex arc, but the highest point of the arc and the overall lifting height are usually designed to be lower than the highest point of the arc and the overall lifting height of the medial support portion 2211, so as to conform to the anatomical characteristics of the human foot that the medial longitudinal arch is higher than the lateral longitudinal arch. Its width and upper surface curved surface features are similar to those of the medial support portion 2211, but the overall shape may appear slightly slender or flat.

[0052] In this embodiment, the medial support portion 2211 and the lateral support portion 2311 both extend backward relative to the main body portion 21, and form an obvious clearance portion 24 between their rear portions. Looking down or looking up from the accompanying drawings, the clearance portion 24 appears as a roughly U-shaped or V-shaped opening, which provides a certain space for the middle part of the sole, avoiding complete coverage of the hard material. Correspondingly, the upper midsole 10 is provided with a support portion 11 at a corresponding position, and the shape and size of the support portion 11 are precisely matched with the clearance portion 24 on the arch support block 20, and filled in the clearance portion 24. 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] In order to further optimize the support effect and wearing comfort, the medial support portion 2211 and the lateral support portion 2311 of the arch support block 20 are connected to the upper surface of the main body 21 through a smooth, non-angular curved transition, thereby avoiding stress concentration and a foreign body feeling when wearing. In addition, the upper edges of the medial support portion 2211 and the lateral support portion 2311 are always higher than the upper surface of the main body 21 at the corresponding lateral position during the entire extension process from front to back, thereby ensuring continuous and effective lifting support for the longitudinal arch.

[0054] Reference Figure 1 To further adapt to the shape of the foot, in the arch support block 20, the rear end of the medial support portion 2211 can be designed to be further back than the rear end of the lateral support portion 2311, that is, the longitudinal length of the medial support arm is slightly larger than that of the lateral support arm, so as to more comprehensively support the longer medial longitudinal arch.

[0055] In order to ensure the beauty and structural integrity of the side of the sole, the medial side and lateral side of the arch support block 20 are respectively kept flush with the medial side and lateral side of the upper midsole 10 at corresponding longitudinal positions to form a smooth side wall of the sole.

[0056] To achieve lightweight and adjust local stiffness, refer to Figure 1 , several sunken grooves 25 arranged from front to back can be provided inside the arm-like structures of the inner support portion 2211 and the outer support portion 2311 of the arch support block 20. These sunken grooves 25 are more precisely openings or cutouts that penetrate the thickness direction of the support arm, making the support arm present a grid-like or ribbed framework structure. These openings are usually in an elongated shape, and the long axis direction is generally along the extension direction of the support arm. The size area of these sunken grooves 25 can be designed according to the height dimension of the arch support block 20 where they are located. For example, in the area where the height of the arch support block 20 is larger, that is, in the area where the support arm is thicker, the opening area of the sunken groove 25 can be relatively larger, while in the area with a smaller height, the opening area of the sunken groove 25 is smaller or no sunken groove 25 is provided, so as to achieve the optimized distribution of materials and the fine regulation of performance, and achieve the purpose of weight reduction without significantly sacrificing structural strength.

[0057] The combination between the upper midsole 10 and the arch support block 20 can be achieved by conventional methods in the art, such as firmly bonding with a suitable adhesive, or adopting an integral injection molding process to combine the two into a whole. In a preferred embodiment, the upper surface of the arch support block 20 and the lower surface of the upper midsole 10 are designed as mutually adapted arc surfaces at least at the contact surfaces of some joints, and this arc surface fit helps to disperse stress and achieve a closer combination.

[0058] Refer to Figure 1 and Figure 2 , the sole of this embodiment can further include a lower outsole 30. The lower outsole 30 is combined below the upper midsole 10 and the arch support block 20, and at least completely covers the arch support block 20 to provide wear resistance and anti-slip performance, and protect the arch support block 20 from direct wear. To enhance the combination stability and anti-torsion performance between the arch support block 20 and the lower outsole 30, refer to Figure 1 , a support notch 26 that arches upward and is curved and sunken can be provided at the bottom side position of the inner support portion 2211 of the arch support block 20, specifically at the lower edge near the inner side surface. The support notch 26 has a certain longitudinal length and sunken depth. Correspondingly, the lower outsole 30 is provided with a support flange 31 at the corresponding position that is adapted to the position and shape of the support notch 26. During assembly, the support flange 31 precisely extends into the support notch 26 and closely contacts the arch support block 20 to form an effective mechanical interlocking structure.

[0059] The arch support block 20 can be made of various materials with high hardness and good anti-fatigue performance, such as high-density ethylene-vinyl acetate copolymer (EVA), thermoplastic polyurethane (TPU), nylon, polyether block amide Polypropylene (PP), glass fiber / carbon fiber reinforced composite materials, etc. The material selection of the upper midsole 10 focuses more on buffering and comfort.

[0060] The sole with arch support involved in this embodiment can provide stable and effective physical support for the arch by setting an arch support block 20 with a higher hardness than the upper midsole 10, and compounding it below the upper midsole 10 and accurately corresponding to the arch position. This hardness difference enables the arch support block 20 to assume the main support function and resist the collapse trend of the arch due to gravity and ground reaction force when bearing weight. The main body 21 of the arch support block 20 extends laterally, providing necessary support for the transverse arch in the rear area of ​​the metatarsal bones of the plantar, which helps to maintain the normal physiological curvature of the forefoot, disperse the pressure on the forefoot during standing and movement, and avoid excessive concentration of pressure. The medial support portion 2211 and the lateral support portion 2311 are respectively located on the inner and outer sides of the main body 21, and both extend in an arched shape from front to back. This form accurately adapts to the natural physiological curvature of the medial longitudinal arch and the lateral longitudinal arch of the plantar of the human body. Through this partitioned arch support design, the three main arches of the foot - the transverse arch, the medial longitudinal arch and the lateral longitudinal arch - are fully covered and independently supported. In particular, in the present invention, the medial support portion 2211 and the lateral support portion 2311 extend backward relative to the main body 21, and a clearance portion 24 is formed between the two. At the same time, the upper midsole 10 is provided with a support portion 11 that matches the position and shape of the clearance portion 24, and the lower surface of the support portion 11 of the upper midsole 10 is flush with the lower surface of the arch support block 20. The synergistic effect of this group of structural features brings about many beneficial effects: First, the formation of the clearance portion 24 provides a buffer space for some areas in the middle of the sole that are more sensitive to pressure or areas that require a certain degree of flexion during exercise, avoiding direct and continuous pressure from the hard arch support block 20 material, thereby significantly improving the comfort of wearing. Secondly, the support part 11 made of the relatively soft upper midsole 10 material fills the concession part 24, which not only makes up for 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 lower surface of the sole in the midfoot area. This flatness is crucial for the subsequent stable combination with the lower outsole 30, or in some lightweight designs without outsoles, it can also provide a consistent and comfortable touch. Furthermore, this structural combination can optimize the material distribution in the middle of the sole without sacrificing the support strength of the key arch area. The concession of the arch support block 20 reduces the amount of hard material, while the support part 11 of the upper midsole 10 is filled with lighter flexible material, which helps to achieve the overall lightweight of the sole. At the same time, the flexible material of the upper midsole 10 filled in this area can also provide additional cushioning effect, further improving the wearing comfort. Therefore, the sole with arch support involved in this embodiment can not only effectively support the arch of the child's foot, but also further ensure the 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 according to any one of the embodiments 1. The upper is compounded on the sole through conventional shoe-making processes, such as by gluing, sewing or integral injection molding. The specific structure and material of the upper can be selected according to the type of the shoe (such as sports shoes, casual shoes, etc.) and design requirements.

[0063] By adopting the sole described in the above embodiment 1, 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, disperse the plantar pressure, and improve the wearing comfort and sports stability.

[0064] The above description of the specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the inspiration of the present invention or the above embodiments, those of ordinary skill in the art, combining common general knowledge, ordinary technical knowledge in the art and / or the prior art, can make modifications, equivalent replacements or other improvements to the embodiments of the present invention or some of its technical features through logical analysis, reasoning or limited experiments, and all of them should be included in the protection scope of the present invention.

Claims

1. An insole with arch support, characterized in that, include: upper midsole (10); and An arch support block (20), which is compounded below the upper midsole (10) and corresponds to the arch of the foot, and has a higher hardness than the upper midsole (10); The arch support block (20) comprises: a main body portion (21) extending laterally to fit and support the transverse arch of the plantar metatarsal posterior region; A medial support portion (22)(11), which is located inside the main body portion (21) and extends from front to back in an arch shape to adapt to and support the medial longitudinal arch of the sole; and A lateral support portion (23) (11), which is located outside the main body portion (21) and extends from front to back in an arch shape to adapt to and support the lateral longitudinal arch of the sole; Wherein, the inner supporting portion (22) (11) and the outer supporting portion (23) (11) extend backward relative to the main body (21), and a clearance portion (24) is formed between the two. The upper midsole (10) is provided with a support portion (11) adapted to the position and shape of the evacuation portion (24), and the lower surface of the support portion (11) is flush with the lower surface of the arch support block (20).

2. The sole with arch support according to claim 1, characterized in that, In the arch support block (20), the medial support portion (22) (11) and the lateral support portion (23) (11) are smoothly connected with the upper surface of the main body (21), and the upper edges of the two are always higher than the upper surface of the main body (21) at the corresponding lateral position.

3. A sole with arch support according to claim 1, characterized in that, In the arch support block (20), the highest point of the upper edge of the medial support portion (22) (11) is higher than the highest point of the upper edge of the lateral support portion (23) (11).

4. A sole with arch support according to claim 1, characterized in that, The medial side surface and the lateral side surface of the arch support block (20) are respectively flush with the medial side surface and the lateral side surface of the upper midsole (10) at corresponding longitudinal positions.

5. The sole with arch support according to claim 4, characterized in that, The inner side surface and the outer side surface of the arch support block (20) are inwardly recessed and provided with a plurality of sink grooves (25) arranged from front to back.

6. The sole with arch support according to claim 5, characterized in that, The size and area of ​​the sink (25) is positively correlated with the height of the location where it is located.

7. The sole with arch support according to claim 1, characterized in that, In the arch support block (20), the rear end of the medial support portion (22) (11) is further rearward than the rear end of the lateral support portion (23) (11).

8. The sole with arch support according to 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) is a curved surface at least in a portion where they are connected.

9. The sole with arch support according to claim 1, characterized in that, The shoe further comprises a lower outsole (30), which is composited with the upper midsole (10) and the lower part of the arch support block (20) and at least completely covers the arch support block (20); the inner support portion (22) (11) of the arch support block (20) is provided with a support notch (26) at the bottom side edge thereof, which is curved and concave upward in an arch shape; the lower outsole (30) is provided with a support flange (31) which is adapted to the position and shape of the support notch (26); the support flange (31) extends into the support notch (26) and is connected to the arch support block (20).

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

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