Shoe rear cover structure and shoe

Abstract

The invention discloses a shoe rear cover structure and a shoe, and the shoe rear cover structure comprises a shoe heel unit; the heel unit comprises a neckline reinforcing layer and a reverse opening lining, and the neckline reinforcing layer is arranged at the neckline part of the shoe and used for wrapping and supporting the ankle; the neckline reinforcing layer is wrapped by the reverse opening inner layer; wherein a gradually-thickened part is formed on the part, facing the sole, of the neckline reinforcing layer, and the gradually-thickened part is gradually thickened in the direction away from the sole. According to the technical scheme, protection on ankles is enhanced, and the sprain risk is reduced.

Description

Technical Field

[0001] This application relates to the field of footwear technology, and in particular to a heel counter structure and a shoe. Background Technology

[0002] The heel counter is designed to wrap around and support the heel, preventing deformation and collapse, and improving stability and fit. It is a key structure for ensuring a well-formed shoe and comfortable wear. However, traditional heel counters do not provide sufficient ankle protection in actual use, making them prone to injury. Summary of the Invention

[0003] This application proposes a heel counter structure to enhance ankle protection and reduce the risk of sprains.

[0004] To achieve the above objectives, this application discloses the following technical solutions:

[0005] A shoe heel sleeve structure, the shoe heel sleeve structure comprising: a shoe heel unit;

[0006] The heel unit includes: a collar reinforcement layer and a reverse lining layer. The collar reinforcement layer is disposed at the collar of the shoe and is used to cover and support the ankle. The reverse lining layer wraps around the collar reinforcement layer.

[0007] The collar reinforcement layer has a gradually thickening section facing the sole, and the thickening section gradually becomes thicker away from the sole.

[0008] In some technical solutions, the thickened portion is an arc-shaped structure.

[0009] In some technical solutions, the collar reinforcement layer includes: a first collar reinforcement layer and a second collar reinforcement layer;

[0010] The first collar reinforcement layer and the second collar reinforcement layer are stacked sequentially along a first direction, which extends from the heel to the toe. The portion of the first collar reinforcement layer facing the sole is constructed into a first arc-shaped structure, and the portion of the second collar reinforcement layer facing the sole is constructed into a second arc-shaped structure. The first arc-shaped structure and the second arc-shaped structure are included within the arc-shaped structure.

[0011] In some technical solutions, the convex surface of the first arc-shaped structure faces the sole, and the convex surface of the second arc-shaped structure faces the sole.

[0012] In some technical solutions, the distance between the first arc-shaped structure and the sole is longer than the distance between the second arc-shaped structure and the sole, so that the first arc-shaped structure and the second arc-shaped structure form a stepped structure.

[0013] In some technical solutions, the heel unit further includes: a heel lining;

[0014] The heel lining is disposed between the sole and the collar reinforcement layer, and the heel lining is recessed relative to the collar reinforcement layer.

[0015] In some technical solutions, the heel unit further includes: a heel upper material layer;

[0016] The reverse lining layer covers the side of the collar reinforcement layer closest to the ankle area, and the heel upper layer covers the side of the collar reinforcement layer away from the ankle area.

[0017] In some technical solutions, the heel counter structure includes: a stress-dissipating layer;

[0018] The stress-relief layer is disposed on the side of the heel upper material layer away from the ankle area, and the stress-relief layer is constructed in an arc shape that extends upward from the sole along the surface of the heel upper material layer.

[0019] In some technical solutions, the heel counter structure further includes: a heel reinforcement layer;

[0020] A reinforcing space is provided between the stress-dissipating layer and the heel upper material layer, and the reinforcing space is provided with the heel reinforcing layer.

[0021] In some technical solutions, the stress-dissipating layer is made of thermoplastic polyurethane rubber.

[0022] In some technical solutions, the heel cover structure further includes: a decorative layer;

[0023] The decorative layer is attached to the side of the stress-relief layer away from the heel upper layer.

[0024] A shoe includes the aforementioned heel counter structure.

[0025] As can be seen from the above technical solution, the heel counter structure of this shoe provides wrapping and protection for the ankle due to the reinforcement layer at the collar. Furthermore, the progressively thickened portion towards the sole creates a progressive wrapping structure that provides cushioning and support, further enhancing the wrapping and protection of the ankle and reducing the risk of sprains, especially during sports injuries. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings, all of which fall within the scope of protection of this invention. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structure or operation.

[0027] Figure 1 This is a schematic diagram illustrating the combination of the heel cover structure and other structures provided in the embodiments of this application.

[0028] Figure 2 for Figure 1 Rear view;

[0029] Figure 3 for Figure 2 A sectional view along the CC direction;

[0030] Figure 4 for Figure 3 A schematic diagram.

[0031] Among them: 10 is the heel unit, 20 is the heel reinforcement layer, 30 is the stress-dissipating layer, 40 is the decorative layer, 50 is the heel upper material layer, 60 is the reverse lining layer, 70 is the second collar reinforcement layer, 80 is the first collar reinforcement layer, and 90 is the heel lining layer. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0033] To enhance ankle protection and reduce the risk of sprains, such as Figure 1 , Figure 2 and Figure 3 The application provides a shoe heel sleeve structure, wherein the shoe heel sleeve structure may include: a shoe heel unit 10.

[0034] like Figure 3 As shown, the heel unit 10 may include: a collar reinforcement layer and a reverse lining layer 60. The collar reinforcement layer is disposed at the collar of the shoe and is used to cover and support the ankle; the reverse lining layer 60 wraps around the collar reinforcement layer.

[0035] The collar reinforcement layer has a gradually thickening section facing the sole, and the thickening section gradually becomes thicker away from the sole.

[0036] In this technical solution, a collar reinforcement layer is provided at the collar of the shoe, and then the collar reinforcement layer is wrapped with a reverse lining layer 60. During use, the collar reinforcement layer provides wrapping and protection for the ankle. Furthermore, the progressively thicker portion away from the sole creates a progressive wrapping structure, providing cushioning and support, further enhancing ankle support and protection, reducing the risk of sprains, and particularly reducing the risk of sports-related sprains.

[0037] Based on the above technical solution, the thickened portion facing the sole can be a sloping structure. This sloping structure is inclined upwards at a certain angle, gradually thickening away from the sole. However, to better enhance the wrapping and protection of the ankle, this thickened portion can be an arc-shaped structure. It should be noted that this arc-shaped structure gradually thickens away from the sole, such as... Figure 3 As shown.

[0038] Based on the inventive concept of this technical solution, such as Figure 3 As shown, the neckline reinforcement layer may include: a first neckline reinforcement layer 80 and a second neckline reinforcement layer 70.

[0039] A first collar reinforcement layer 80 and a second collar reinforcement layer 70 are sequentially stacked along a first direction, extending from the heel to the toe. The portion of the first collar reinforcement layer 80 facing the sole is constructed into a first arc-shaped structure, and the portion of the second collar reinforcement layer 70 facing the sole is constructed into a second arc-shaped structure. The first and second arc-shaped structures are included within the arc-shaped structure. In this technical solution, the first collar reinforcement layer 80 and the second collar reinforcement layer 70 provide better cushioning and support. The thickness of the first collar reinforcement layer 80 can be thinner than the thickness of the second collar reinforcement layer 70.

[0040] It should be noted that the neckline reinforcement layer can be made of polyurethane high-elastic foam, and the inner layer of the reverse opening can be composed of warp-knitted single-layer mesh fabric, 2mm polyurethane foam, and 28-needle T / C fabric (a three-layer composite fabric structure, from the outside to the inside: warp-knitted single-layer mesh fabric, 2mm polyurethane foam, and 28-needle T / C fabric).

[0041] Based on the above technical solution, it should be noted that the reverse lining layer 60 is located inside the heel and mainly serves to fit snugly against the back of the heel and ankle. Its material and structure directly affect the comfort during wear. The reverse lining layer 60 can be made of mesh or a mesh-polyurethane foam-T / C fabric composite material; the thickness of the polyurethane foam in the composite material is 1-5mm, and the T / C fabric has 24, 28, or 32 stitches. The second collar reinforcement layer 70 and the first collar reinforcement layer 80 both use polyurethane foam. The thickness of the second collar reinforcement layer 70 can be 5-15mm, and the thickness of the first collar reinforcement layer 80 can be 3-8mm; to ensure progressive wrapping support for the heel area.

[0042] Based on the inventive concept of this technical solution, in order to better enhance the wrapping and protection of the ankle, the convex surface of the first arc-shaped structure faces the sole, and the convex surface of the second arc-shaped structure faces the sole, as shown below. Figure 3 As shown. Furthermore, the transition between the first and second arc-shaped structures is smooth.

[0043] To further enhance the support and protection for the ankle, such as Figure 3 As shown, the distance between the first arc-shaped structure and the sole is longer than the distance between the second arc-shaped structure and the sole, so that the first and second arc-shaped structures form a stepped structure. Making both the first and second arc-shaped structures stepped provides better protection for the ankle and heel.

[0044] To ensure the heel maintains its shape and provides anti-collapse support, such as Figure 3 As shown, the heel unit 10 may further include a heel liner 90.

[0045] The heel lining 90 is positioned between the sole and the collar reinforcement layer. The heel lining 90 is concave relative to the collar reinforcement layer, and this concave structure protects the heel bone. Additionally, the concave design of the heel lining 90 stabilizes the heel position and improves overall wearing comfort. This heel lining 90 can be made of chemical-coated heel padding with a thickness ranging from 1-5mm.

[0046] Based on the above technical solutions, in order to make shoes durable, such as Figure 3 As shown, the heel unit 10 may further include: a heel upper material layer 50.

[0047] The lining layer 60 wraps around the side of the collar reinforcement layer closest to the ankle, while the heel upper layer 50 wraps around the side of the collar reinforcement layer furthest from the ankle. In this technical solution, the heel upper layer 50 can also be the outermost visual and tactile surface of the shoe body, and its material selection and processing directly determine the appearance and texture of the heel. Furthermore, the heel upper layer 50 can be made of woven single-layer mesh, microfiber leather, or top-grain nubuck leather. The thickness of the woven single-layer mesh can be between 0.8-1.4 mm; the thickness of the microfiber leather should be between 1.0-2.0 mm; and the thickness of the top-grain nubuck leather can be between 1.2-2.2 mm. To enhance the appearance, the surface of the woven single-layer mesh can be treated with techniques such as embroidery, black embroidery, and electro-embroidery, while the surface of the microfiber leather can be printed with patterns to achieve diverse visual designs.

[0048] Based on the concept of this technical solution, in order to disperse stress, such as Figure 3 As shown, the heel counter structure may include: a stress-dissipating layer 30.

[0049] The stress-relief layer 30 is located on the side of the heel upper layer 50 away from the ankle area, and the stress-relief layer 30 is constructed in an arc shape, extending upwards from the sole along the surface of the heel upper layer 50. In this technical solution, the overall arc of the heel sleeve can be precisely controlled by adjusting the arc curve and local thickness of the stress-relief layer 30, and the overall weight can be reduced by setting regular or irregular perforated structures.

[0050] Based on the inventive concept of this technology, in order to reinforce the heel counter structure of the shoe, such as... Figure 3 As shown, the heel sleeve structure may also include a heel reinforcement layer 20, which may be made of polyurethane foam with a thickness ranging from 2 to 6 mm.

[0051] A reinforcing space is provided between the stress-relief layer 30 and the heel upper material layer 50, and the reinforcing space is provided with a heel reinforcing layer 20. In one embodiment, such as... Figure 3 As shown, the volume of the reinforcing space is the same as the volume of the heel reinforcing layer 20, and the cushioning effect is provided by the heel reinforcing layer 20. In another embodiment, as... Figure 4 As shown, the volume of the reinforcement space is larger than that of the rear reinforcement layer 20, so that the space not filled with the rear reinforcement layer 20 can also play a certain buffering role.

[0052] To better achieve the arc shape of the stress-dissipating layer 30, the stress-dissipating layer 30 is made of thermoplastic polyurethane rubber with a thickness of 1-10 mm.

[0053] To better accommodate different patterns, the heel counter structure also includes: decorative layer 40.

[0054] The decorative layer 40 is attached to the side of the stress-relief layer 30 away from the heel upper layer 50. The decorative layer 40 may be made of synthetic leather as the base material, preferably space leather, with a thickness ranging from 1 to 1.5 mm. The appearance and overall aesthetics can be enhanced by adjusting the surface texture of the leather and combining it with the processing technology.

[0055] Furthermore, in this shoe heel counter structure, the stress-dissipating layer 30 and the decorative layer 40 are stacked and fixedly connected to each other to form a composite heel counter that conforms to the curves of the heel and Achilles tendon. This composite heel counter, the heel reinforcement layer 20, and the heel unit 10 are sequentially stacked to form a whole, thereby improving the overall mechanical performance and stability of the heel area. Finally, the edges of the composite heel counter are fixed to the heel unit 10 through peripheral connections, thus forming a clearly layered and functionally coordinated integrated heel counter structure.

[0056] This technical solution also includes a shoe that includes the aforementioned heel counter structure.

[0057] The specific implementation of the heel counter structure is as follows:

[0058] The materials used in the heel counter structure and the performance test results are as follows:

[0059] Table 1: Materials used in embodiments of the heel counter structure

[0060] Structural material / thickness Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Reinforcing layer at the heel (polyurethane high-elastic foam) 5 mm 8 mm 5 mm 5 mm 5 mm 5 mm 5 mm 5 mm Strength-dispersing layer (thermoplastic polyurethane rubber) 3mm 3mm 3mm 3mm 3mm 3mm 3mm 3mm Decorative layer 1.2mm Space Leather 1.2mm Space Leather 1.2mm microfiber leather 1.2mm Space Leather 1.2mm Space Leather 1.2mm Space Leather 1.2mm Space Leather 1.2mm Space Leather Heel upper layer 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric 1.6mm top-grain cowhide (Bago cowhide) 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric Inner layer of the mouth Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Second neckline reinforcement layer (polyurethane high-elastic foam) 10 mm 10 mm 10 mm 10 mm 10 mm 12 mm 12 mm 10 mm First neckline reinforcement layer (polyurethane high-elastic foam) 6 mm 6 mm 6 mm 6 mm 6 mm 6 mm 8 mm 6 mm Backing (Chemical Sheet Hong Kong Jewelry) 1.5 mm 1.5 mm 1.5 mm 1.5 mm 1.5mm 1.5 mm 1.5 mm 3 mm

[0061] Table 2: Test Results of Finished Shoes

[0062] Test content Test Standards Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Ankle protection material cushioning energy (kN) GB / T20991-2024 9.3 9.1 9.3 8.2 9.6 4.7 7.8 7.5 Upper component joint strength (N / cm) GB / T21396-2022 31 35 32 34 37 33 34 32 Finished shoes are durable and foldable GB / T3903.1-2017 qualified qualified qualified qualified qualified qualified qualified qualified Aging resistance rating GB / T3903.7-2019 Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable

[0063] In the above technical solutions, according to the data in Table 2, the shoe heel counter structure prepared in Embodiments 1-8 of the present invention exhibits excellent comprehensive performance: the structure demonstrates outstanding ankle impact cushioning performance, with a measured maximum impact force peak of 9.6 kN, which is superior to the national standard (≤15 kN) limit, indicating excellent protective performance. Regarding structural strength, the minimum upper component joint strength reaches 31 N / cm, exceeding the national standard (≥25 N / cm) requirement. In durability testing, after 40,000 flexural tests (room temperature, 50° angle, 230 cycles / min frequency), no cracking or glue separation occurred in the upper, sole, or joint areas, indicating that the overall structure possesses good fatigue resistance integrity. Furthermore, after continuous irradiation with a 300W sun lamp at 50°C for 24 hours (vertical distance 250 mm), the shoe upper achieved a color change level of 4-5 (level 1 indicates severe color change, level 5 indicates minimal color change), demonstrating good durability and appearance stability.

[0064] Table 3: Comparative Materials for Heel Cover Structure

[0065] Structural material / thickness Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Reinforcing layer at the heel (polyurethane high-elastic foam) 1 mm 5 mm 5 mm 5 mm 5 mm 5 mm Strength-dissipating layer (thermoplastic polyurethane rubber) 3mm - 3mm 3mm 3mm 3mm Decorative layer 1.2mm Space Leather 1.2mm Space Leather 1.2mm cowhide split leather 1.2mm Space Leather 1.2mm Space Leather 1.2mm Space Leather Heel upper layer 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric 1.5mm Space Leather 1.5mm woven single-layer mesh fabric 1.5mm woven single-layer mesh fabric Inner layer of the mouth Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Warp-knitted single-layer mesh fabric - 2mm polyurethane foam - 28-needle T / C fabric Second neckline reinforcement layer (polyurethane high-elastic foam) 10 mm 10 mm 10 mm 10 mm - 10 mm First neckline reinforcement layer (polyurethane high-elastic foam) 6 mm 6 mm 6 mm 6 mm 6 mm - Backing (Chemical Sheet Hong Kong Jewelry) 1.5 mm 1.5 mm 1.5 mm 1.5 mm 1.5 mm 1.5 mm

[0066] The following is a detailed explanation of the proportions for each item:

[0067] Comparative Example 1: The material difference between this comparative example and Example 1 is the thickness of the heel reinforcement layer. The heel reinforcement layer used in this comparative example is 1 mm polyurethane high-elastic foam, and the other structural materials are the same as those in Example 1.

[0068] Comparative Example 2: The material difference between this comparative example and Example 1 is that there is no stress-relieving layer, while the other structural materials are the same as those in Example 1.

[0069] Comparative Example 3: The material difference between this comparative example and Example 1 is that the material of the trim layer is different. The trim layer used in this comparative example is 1.2 mm cow split leather, and the other structural materials are the same as those in Example 1.

[0070] Comparative Example 4: The material difference between this comparative example and Example 1 is that the material of the heel upper layer is different. The heel upper layer of this comparative example is 1.5 mm space leather, and the other structural materials are the same as those in Example 1.

[0071] Comparative Example 5: The material difference between this comparative example and Example 1 is that there is no second collar reinforcement layer, while the other structural materials are the same as those in Example 1.

[0072] Comparative Example 6: The material difference between this comparative example and Example 1 is that there is no second collar reinforcement layer, while the other structural materials are the same as those in Example 1.

[0073] In addition, the finished shoes prepared in Comparative Examples 1-6 were tested, and the test indicators were the same as in Example 1. The test results are shown in Table 4.

[0074] Table 4: Test Results of Comparative Finished Shoes

[0075] Test content Test Standards Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Ankle protection material cushioning energy (kN) GB / T 20991-2024 16.2 19.4 9.3 14.5 22.6 18.2 Upper component joint strength (N / cm) GB / T 21396-2022 30 29 22 26 28 30 Finished shoes are durable and foldable GB / T 3903.1-2017 Unqualified qualified qualified Unqualified qualified qualified Aging resistance rating GB / T 3903.7-2019 Color change 4-5, acceptable Color change 4-5, acceptable Color change 3-4, acceptable Color change 4-5, acceptable Color change 4-5, acceptable Color change 4-5, acceptable

[0076] The conclusions that can be drawn from the above are:

[0077] (1) The test comparison between Comparative Example 1 and Examples 1-8 shows that the ankle impact cushioning and flexural durability of the finished shoes made with a thinner heel reinforcement layer are significantly lower than those of Examples 1-8. Insufficient reinforcement layer thickness will directly lead to excessive deformation and insufficient energy absorption during impact, causing the impact force to be transmitted more directly to the foot; at the same time, the thin reinforcement layer is also more prone to structural fatigue and support failure under repeated bending, affecting the overall durability of the heel. Therefore, under the same process conditions, selecting a heel reinforcement layer with a thickness of 3-10mm can achieve a better balance between impact cushioning, structural support and long-term durability.

[0078] (2) The comparison between Comparative Example 2 and Examples 1-8 shows that the impact cushioning capacity of the finished shoe ankle without a stress-dispersing layer is significantly lower than that of Examples 1-8. Due to the lack of a stress-dispersing layer to guide and disperse the impact force, the stress distribution in the heel area is more concentrated when impacted, causing the cushioning material to fail to fully exert its progressive energy absorption effect, resulting in a significant increase in the peak impact force. Therefore, setting a stress-dispersing layer in the heel wrapping structure plays a key role in optimizing the impact force transmission path and improving the overall cushioning and protection performance.

[0079] (3) The test comparison between Comparative Example 3 and Examples 1-8 shows that the bonding strength and aging resistance of the finished shoe upper components made using cow split leather as the trim layer material are significantly lower than those of Examples 1-8. Genuine leather, due to its loose fiber structure and relatively weak surface coating adhesion, is prone to coating cracking and interlayer peeling under long-term bending and UV aging, leading to decreased interfacial strength and accelerated appearance aging. Therefore, using materials with dense structure and better surface treatment compatibility, such as synthetic leather, as the trim layer results in finished shoes with stronger structural stability and durability.

[0080] (4) A comparison of the tests in Comparative Example 4 and Examples 1-8 shows that the finished shoes made using space leather as the heel upper material have significantly lower flexural strength than those in Examples 1-8. Space leather's bonding strength between the base fabric and coating is easily weakened under repeated bending, leading to surface cracks and even coating peeling, thus affecting the overall fatigue resistance and integrity of the heel structure. Therefore, using materials with better flexural strength, such as woven single-layer mesh, microfiber leather, or top-grain nubuck leather as the heel upper material results in finished shoes with superior durability.

[0081] (5) The test comparison between Comparative Examples 5-6 and Examples 1-8 shows that the finished shoes without a second collar reinforcement layer or a first collar reinforcement layer have significantly lower ankle impact cushioning capabilities than those in Examples 1-8. Due to the lack of support from this progressive cushioning structure, the shoe collar's ability to wrap around the ankle and absorb energy is insufficient, resulting in the inability to effectively disperse impact force and a significant increase in peak impact force. Therefore, configuring a complete second collar reinforcement layer and lower plate structure plays a crucial role in achieving stepped energy absorption and dynamic fit protection in the ankle area.

[0082] The advantages of this shoe's heel counter structure are as follows:

[0083] Firstly, enhanced protective performance: This invention integrates the heel unit, reinforcement layer, shock-absorbing layer, and decorative layer into a single composite design, creating a heel counter structure with enhanced support. This structure not only avoids the risk of damage to exposed adjustment components but also achieves layered absorption and multi-directional dispersion of impact force through the progressive thickness distribution of the reinforcement layer and the ergonomic curved surface of the shock-absorbing layer. This effectively improves the ankle's impact cushioning performance. Test data shows that its peak impact force is superior to national standard limits and the proportion of traditional structures, thus fundamentally improving sports protection effectiveness and wearing safety.

[0084] Secondly, the heel curvature of the stress-relieving layer 30 is beautiful: This invention utilizes the plasticity of the stress-relieving layer and the surface expressiveness of the decorative layer material to achieve a natural and smooth heel contour and optimized shape while satisfying functional fit. The stress-relieving layer can precisely control the overall curve of the heel sleeve, while the decorative layer enriches the visual layers through textures, embroidery, and other processes, so that the heel structure presents a harmonious and elegant appearance while being functional, enhancing the product's market recognition and aesthetic value.

[0085] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0086] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0087] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0088] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A shoe heel cover structure, characterized in that, The heel sleeve structure includes: a heel unit (10). The heel unit (10) includes: a collar reinforcement layer and a reverse lining layer (60). The collar reinforcement layer is disposed at the collar of the shoe and is used to cover and support the ankle. The reverse lining layer (60) wraps around the collar reinforcement layer. The collar reinforcement layer has a gradually thickening portion facing the sole, and the gradually thickening portion gradually increases in thickness away from the sole.

2. The shoe heel cover structure as described in claim 1, characterized in that, The thickened portion has an arc-shaped structure.

3. The shoe heel cover structure as described in claim 2, characterized in that, The collar reinforcement layer includes: a first collar reinforcement layer (80) and a second collar reinforcement layer (70); The first collar reinforcement layer (80) and the second collar reinforcement layer (70) are stacked sequentially along a first direction, which extends from the heel to the toe. The portion of the first collar reinforcement layer (80) facing the sole is constructed into a first arc-shaped structure, and the portion of the second collar reinforcement layer (70) facing the sole is constructed into a second arc-shaped structure. The first arc-shaped structure and the second arc-shaped structure are included in the arc-shaped structure.

4. The heel counter structure as described in claim 3, characterized in that, The convex surface of the first arc-shaped structure faces the sole of the shoe, and the convex surface of the second arc-shaped structure faces the sole of the shoe.

5. The heel counter structure as described in claim 4, characterized in that, The distance between the first arc-shaped structure and the sole is longer than the distance between the second arc-shaped structure and the sole, so that the first arc-shaped structure and the second arc-shaped structure form a stepped structure.

6. The shoe heel cover structure as described in claim 1, characterized in that, The heel unit (10) further includes: a back lining (90). The rear lining (90) is disposed between the sole and the collar reinforcement layer, and the rear lining (90) is recessed relative to the collar reinforcement layer.

7. The shoe heel cover structure as described in claim 6, characterized in that, The heel unit (10) further includes: a heel upper material layer (50); The reverse lining layer (60) covers the side of the collar reinforcement layer near the ankle area, and the heel upper layer (50) covers the side of the collar reinforcement layer away from the ankle area.

8. The shoe heel cover structure as described in claim 7, characterized in that, The heel cover structure includes: a stress-relief layer (30); The stress-relief layer (30) is disposed on the side of the heel upper layer (50) away from the ankle area, and the stress-relief layer (30) is configured in an arc shape that extends upward from the sole along the surface of the heel upper layer (50).

9. The heel counter structure as described in claim 8, characterized in that, The heel sleeve structure also includes: a heel reinforcement layer (20). A reinforcing space is provided between the stress-dissipating layer (30) and the heel upper material layer (50), and the reinforcing space is provided with the heel reinforcing layer (20).

10. The shoe heel cover structure as described in claim 8, characterized in that, The stress-relief layer (30) is made of thermoplastic polyurethane rubber.

11. The shoe heel cover structure as described in claim 8, characterized in that, The heel cover structure also includes: a decorative layer (40). The decorative layer (40) is attached to the side of the stress-relief layer (30) away from the heel upper layer (50).

12. A shoe, characterized in that, include: The heel counter structure according to any one of claims 1-11.

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