Comfort insole

Abstract

The utility model relates to the technical field of shoe midsole, especially to a comfortable midsole, including the midsole matrix of specific contour shape, the midsole matrix includes the upper matrix surface and the lower matrix surface of being located the lower side of upper matrix surface, the first comfort layer is equipped with in the front end of upper matrix surface, the arch support part is integrally formed in the peripheral area of upper matrix surface, the second comfort layer is equipped with in the front end of lower matrix surface, the utility model discloses the purpose lies in, provide a comfortable midsole of giving consideration to support and comfort, the comfortable midsole of adaptation foot bottom form.

Description

Technical Field

[0001] This utility model relates to the field of shoe midsole technology, and in particular to a comfort midsole. Background Technology

[0002] Currently, most shoe midsoles on the market use a single material or a simple layered structure, which presents the following technical challenges: An imbalance between support and comfort; flexible midsoles, while soft, have poor resistance to deformation and are prone to collapsing after prolonged wear, failing to provide effective arch support and leading to foot fatigue; rigid midsoles offer strong support but insufficient cushioning, resulting in noticeable impact on the foot during walking and poor comfort; and insufficient fit and adaptability. Midsole shapes are mostly regular flat surfaces or simple curves, making it difficult to fully adapt to the human foot structure (narrow forefoot, wide heel) and natural foot curve, easily leading to localized compression or... The gaps between the midsole and other parts of the shoe result in greater friction during dynamic walking, which can easily wear down the feet. Furthermore, the midsole's poor moisture resistance and durability, coupled with prolonged contact with foot sweat and external moisture, and the lack of a dedicated moisture-proof structure, make it prone to mold growth in internal materials and softening of the padding layer, affecting structural stability and lifespan. Additionally, the simple, glued connections between components are prone to displacement and warping. Finally, the low assembly efficiency, with the lack of precise positioning structures during assembly of the midsole and other shoe components, relying on manual alignment, can lead to misalignment, reducing overall shoe comfort. The limited number of connection points also makes the shoe prone to loosening over time, impacting its durability. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a comfortable midsole that combines support and comfort and adapts to the shape of the foot.

[0004] The present invention adopts the following technical solution:

[0005] A comfort midsole includes a midsole base with a specific contour shape, the midsole base including an upper base surface and a lower base surface located below the upper base surface; a first comfort layer is provided at the front end of the upper base surface; an arch support portion is integrally formed in the peripheral area of ​​the upper base surface; and a second comfort layer is provided at the front end of the lower base surface.

[0006] A further improvement to the above technical solution is that the midsole substrate is a rigid load-bearing substrate.

[0007] A further improvement to the above technical solution is that the three-dimensional shape of the midsole substrate is an irregular curved surface that is narrow at the front end and wide at the rear end, and the midsole substrate has a curved profile with a preset arc along its length.

[0008] A further improvement to the above technical solution is that the rear surface of the upper substrate is covered with a first moisture-proof paper, and the first moisture-proof paper is disposed adjacent to the first comfort layer.

[0009] A further improvement to the above technical solution is that the central region of the upper substrate surface is provided with a plurality of positioning recesses arranged in parallel, the positioning recesses penetrating the first moisture-proof paper and extending into the interior of the upper substrate surface.

[0010] A further improvement to the above technical solution is that the upper substrate surface has three embedded recessed holes arranged in a triangle in the rear end area corresponding to the first moisture-proof paper, and a first through hole is opened at the bottom of each embedded recessed hole. The first through hole passes through the first moisture-proof paper, the upper substrate surface and the lower substrate surface in sequence.

[0011] A further improvement to the above technical solution is that the upper substrate surface is provided with second through holes at both ends corresponding to the first moisture-proof paper, and the second through holes sequentially penetrate the first moisture-proof paper, the upper substrate surface and the lower substrate surface.

[0012] A further improvement to the above technical solution is that the first comfort layer is a high-density foam layer, which is bonded to the upper substrate surface, and the bonding surface between the high-density foam layer and the upper substrate surface is completely adapted to the curved contour of the upper substrate surface.

[0013] A further improvement to the above technical solution is that the arch support part is arc-shaped and streamlined, and the inner side of the arch support part protrudes towards the direction of the first moisture-proof paper. The height of the protrusion is gradually distributed along the length of the arch support part to adapt to the curve of the human foot arch.

[0014] A further improvement to the above technical solution is that the second comfort layer includes an elastic cushioning layer and a non-woven fabric layer; the elastic cushioning layer is embedded in the area of ​​the lower substrate surface; the non-woven fabric layer covers the upper surface of the elastic cushioning layer, and the periphery of the non-woven fabric layer is bonded to the lower substrate surface.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention achieves four core advantages through the coordinated design of its components: structural stability, comfortable fit, moisture resistance, durability, and precise assembly. A rigid load-bearing base provides stable support; the upper and lower base surfaces provide installation references for each functional component; triangularly arranged embedded recesses and multiple through holes strengthen the connection between the midsole and the shoe body, preventing deformation and loosening; the irregular curved surface adapts to the foot's curve with a preset curvature; a double-layer comfort layer consisting of a high-density foam layer and an elastic cushioning layer provides dual cushioning in the forefoot; and the gradually raised, arc-shaped arch support conforms to the arch's needs, distributing pressure on the sole and reducing... Reduced fatigue; the first moisture-proof paper blocks moisture intrusion, protecting the base material and padding layer; the non-woven fabric layer protects the elastic cushioning layer; high-density foam and bonding technology ensure that components are not easily damaged or shifted, extending service life; positioning recesses and multiple sets of through holes provide precise positioning and connection channels, improving assembly efficiency and accuracy, adapting to mass production, while the through holes achieve lightweight and breathability, taking into account practicality and experience, forming a comfortable midsole structure with complementary functions and synergistic performance, effectively solving the problems of imbalance between support and comfort, poor fit, insufficient moisture resistance and durability, and low assembly efficiency of existing midsoles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the comfort midsole of this utility model;

[0018] Figure 2 for Figure 1 Rear view of the comfort-oriented midsole;

[0019] Figure 3 for Figure 1 A side-view 3D view of the comfort midsole.

[0020] The numbers on the map are:

[0021] 10. Midsole base; 20. Upper base surface; 21. First moisture-proof paper; 22. Positioning recess; 23. Embedded recess; 24. First through hole; 25. Second through hole; 30. Lower base surface; 31. Second moisture-proof paper; 40. First comfort layer; 50. Arch support; 60. Second comfort layer; 61. Elastic cushioning layer; 62. Non-woven fabric layer. Detailed Implementation

[0022] 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 only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figures 1 to 3 As shown, this is an embodiment of the present invention, which relates to a comfort midsole, including a midsole base 10 with a specific contour shape. The midsole base 10 includes an upper base surface 20 and a lower base surface 30 disposed below the upper base surface 20. A first comfort layer 40 is provided at the front end of the upper base surface 20. An arch support portion 50 is integrally formed in the peripheral area of ​​the upper base surface 20. A second comfort layer 60 is provided at the front end of the lower base surface 30. Specifically, the midsole base 10, with its upper base surface 20 and lower base surface 30, ensures both the stability and load-bearing capacity of the overall midsole structure and provides a precise mounting surface for different functional components such as the padding and support, avoiding the problem that a single structure cannot adequately address both support and comfort. The first comfort layer 40 at the front of the upper base surface 20 and the second comfort layer 60 at the front of the lower base surface 30 form a double-layer front-end cushioning structure, which can specifically alleviate the pressure impact on the forefoot during walking and standing, improving the fit and comfort of the forefoot. The one-piece arch support 50 on the periphery of the upper base surface 20 can fit closely to the arch area of ​​the foot, filling the gap between the arch and the midsole, providing continuous and stable support for the arch, effectively preventing problems such as walking fatigue and foot soreness caused by lack of arch support, and is especially suitable for long-term wear scenarios.

[0026] like Figure 1As shown, the midsole substrate 10 is a rigid load-bearing substrate. Specifically, defining the midsole substrate 10 as a rigid load-bearing substrate significantly improves the structural rigidity and deformation resistance of the midsole compared to ordinary flexible substrates, preventing problems such as collapse and bending deformation of the midsole after long-term wear, and ensuring the stability of the overall shape of the midsole. At the same time, the rigid substrate can serve as a support base, allowing the support force of the arch support 50 to be transmitted more evenly to the foot, avoiding weakened support effect caused by dispersed support force. It can also provide a stable installation benchmark for components such as padding and moisture-proof paper on the upper substrate surface 20 and lower substrate surface 30, ensuring that the components are not easily displaced after assembly, further extending the service life of the midsole. In this embodiment, the rigid load-bearing substrate can be made of rigid EVA composite material, glass fiber reinforced polypropylene material, etc.

[0027] like Figure 1 As shown, the three-dimensional shape of the midsole substrate 10 is an irregular curved surface that is narrow at the front end and wide at the rear end. The midsole substrate 10 has a curved profile with a preset arc along its length. Specifically, the irregular curved surface shape of the midsole substrate 10, which is narrow at the front end and wide at the rear end, perfectly matches the physiological structure of the human foot, which is narrow at the forefoot and wide at the heel. This avoids gaps or compression between the midsole and the edge of the foot, improving the overall fit between the midsole and the foot. The preset arc curved profile along its length can simulate the curve of the foot when the human foot is standing or walking naturally. This ensures that the midsole remains in contact with the foot during gait cycles such as lifting and landing, reducing the relative friction between the foot and the midsole, lowering the risk of skin abrasion, and distributing the force across different areas of the foot. This avoids discomfort caused by concentrated local pressure, making it particularly suitable for dynamic scenarios such as daily walking and exercise.

[0028] like Figure 1 As shown, the rear surface of the upper substrate 20 is covered with a first moisture-proof paper 21, which is disposed adjacent to the first comfort layer 40. Specifically, the first moisture-proof paper 21 effectively blocks moisture from the external environment, such as sweat, rain, and air moisture, from penetrating the interior of the upper substrate 20 and the first comfort layer 40. This prevents the material of the upper substrate 20 from becoming moldy and the first comfort layer 40 from absorbing water and softening due to moisture penetration, thereby ensuring the structural stability and comfort performance of the midsole. At the same time, the first moisture-proof paper 21 and the first comfort layer 40 are disposed adjacent to each other, forming a moisture-proof transition layer at their contact surface. This prevents bacteria from growing on the first comfort layer 40 due to long-term contact with foot sweat, improving the hygiene and durability of the midsole, making it especially suitable for use in humid environments or by people who sweat easily.

[0029] like Figure 1As shown, the central area of ​​the upper base surface 20 is provided with a plurality of positioning recesses 22 arranged in parallel. The positioning recesses 22 penetrate the first moisture-proof paper 21 and extend into the interior of the upper base surface 20. Specifically, the positioning recesses 22 can serve as a precise positioning reference when assembling the midsole with other parts of the shoe body. During the assembly process, the relative position of the midsole with other parts can be quickly determined through the cooperation of positioning pins, positioning posts and other components with the recesses, avoiding problems such as offset and misalignment during manual assembly, and significantly improving assembly efficiency and accuracy. The positioning recesses 22 penetrate the first moisture-proof paper 21 and extend into the interior of the upper base surface 20, ensuring sufficient positioning depth to prevent positioning components from falling off, and also physically fixing the first moisture-proof paper 21 through the recess structure, preventing the first moisture-proof paper 21 from curling or shifting during assembly or use, further enhancing the moisture-proof effect of the moisture-proof paper.

[0030] like Figure 1 and Figure 2 As shown, the upper base surface 20 has three triangularly arranged recessed holes 23 in the rear end area corresponding to the first moisture-proof paper 21. Each recessed hole 23 has a first through hole 24 at its bottom, which sequentially penetrates the first moisture-proof paper 21, the upper base surface 20, and the lower base surface 30. Specifically, the triangular arrangement of the three recessed holes 23 provides higher stability compared to other arrangements such as straight lines, forming a three-point stable support at the rear end of the midsole. During assembly with components such as the heel, the recessed holes allow for precise positioning and disperse the pressure transmitted from the heel to the midsole, preventing localized stress concentration. The first through hole 24 at the bottom of the recessed holes 23 penetrates multiple layers, providing a channel for fasteners such as cleats and connecting posts, making the connection between the midsole and other shoe components more secure and less prone to loosening. Furthermore, the through hole structure allows for air circulation within the midsole, helping to expel moisture and heat generated by the foot and improving breathability.

[0031] like Figure 1 and Figure 2 As shown, the upper base surface 20 is provided with second through holes 25 at both ends corresponding to the first moisture-proof paper 21. The second through holes 25 sequentially penetrate the first moisture-proof paper 21, the upper base surface 20, and the lower base surface 30. Specifically, the second through holes 25 at both ends of the first moisture-proof paper 21 form a multi-point connection structure with the first through hole 24 at the rear end, further increasing the connection points between the midsole and the shoe body components, making the connection more balanced and stable, especially strengthening the fixation effect at both ends of the midsole, and preventing the ends of the midsole from lifting or shifting during walking; at the same time, the second through holes 25 and the first through holes 24 cooperate to form a three-dimensional ventilation channel, accelerating the air circulation inside the midsole, improving breathability, and the through holes can reduce the overall weight of the midsole, achieving lightweighting of the midsole while ensuring structural strength, and improving the ease of wearing.

[0032] like Figure 1 As shown, the first comfort layer is a high-density foam layer, which is bonded to the upper substrate surface 20. The bonding surface between the high-density foam layer and the upper substrate surface 20 is perfectly matched to the curved contour of the upper substrate surface 20. Specifically, the first comfort layer uses a high-density foam layer. Compared with ordinary foam, high-density foam has superior elasticity and cushioning performance, effectively absorbing the impact force when the forefoot lands. At the same time, it rebounds quickly after being subjected to force, preventing the foam from collapsing and maintaining the cushioning effect over a long period of time. The high-density foam layer is fixed to the upper substrate surface 20 by bonding, and the bonding surface is perfectly matched to the curved contour of the upper substrate surface 20, ensuring that the foam layer and the upper substrate surface 20 are in close contact without gaps. This prevents the foam layer from shifting or wrinkling during use, and at the same time, it allows the forefoot pressure to be evenly transmitted to the upper substrate surface 20 through the foam layer, reducing local pressure concentration and further improving forefoot comfort. Moreover, the bonding process is simple to operate and suitable for mass production.

[0033] like Figure 1 and Figure 3 As shown, the arch support 50 has an arc-shaped streamlined shape. The inner side of the arch support 50 protrudes towards the first moisture-proof paper 21, and the height of the protrusion gradually varies along the length of the arch support 50 to adapt to the curve of the human foot arch. Specifically, the arc-shaped streamlined shape of the arch support 50 can perfectly match the arc contour of the human foot arch, avoiding pressure and friction on the skin of the foot caused by the edge of the support, thus improving wearing comfort. The protrusion of the inner side of the arch support 50 towards the first moisture-proof paper 21 can precisely fit the concave area of ​​the inner side of the arch, providing targeted support for the arch. The gradual distribution of the protrusion height along the length of the arch support 50 can simulate the support needs of different areas of the arch, making the support force more ergonomic, effectively dispersing the pressure on the arch, and preventing problems such as the aggravation of flat feet and plantar fasciitis caused by insufficient arch support. It is especially suitable for people who stand or walk for long periods of time.

[0034] like Figure 2As shown, the second comfort layer 60 includes an elastic cushioning layer 61 and a non-woven fabric layer 62; the elastic cushioning layer 61 is embedded in the area of ​​the lower substrate surface 30; the non-woven fabric layer 62 covers the upper surface of the elastic cushioning layer 61, and the periphery of the non-woven fabric layer 62 is bonded to the lower substrate surface 30. Specifically, the second comfort layer 60 adopts a composite structure of an elastic cushioning layer 61 and a non-woven fabric layer 62. The elastic cushioning layer 61 is embedded in the front end of the lower base surface 30, providing secondary cushioning from below to the forefoot, forming a coordinated cushioning effect with the first comfort layer 40 on the upper base surface 20, further enhancing the forefoot's impact absorption capacity. The non-woven fabric layer 62 covers the upper surface of the elastic cushioning layer 61, protecting it from external wear and contamination, extending its service life, and improving ventilation within the midsole through the breathability of the non-woven fabric, preventing the cushioning layer from becoming stuffy. The periphery of the non-woven fabric layer 62 is bonded and fixed to the lower base surface 30, ensuring the stability of the composite structure and preventing the elastic cushioning layer 61 from shifting. Simultaneously, the soft non-woven fabric material, when bonded to the lower base surface 30, does not affect the overall flexibility of the midsole, ensuring freedom of foot movement during walking. In this embodiment, the elastic cushioning layer 61 can be low-density EVA foam, polyurethane foam, silicone cushioning pad, plant-based elastic foam, etc. In this embodiment, the lower base surface 30 is covered with a second moisture-proof paper 31, which covers the lower midsole surface to block moisture transmitted from the sole or the ground. Together with the first moisture-proof paper 21 on the upper midsole surface, a double-layer moisture-proof system is constructed to protect the feet from moisture in all directions. At the same time, the structure of each layer works together to improve the comfort and durability of the lower midsole area.

[0035] The working principle of this utility model is as follows:

[0036] The rigid load-bearing base serves as the core skeleton, ensuring the overall deformation resistance of the midsole. Its irregular curved surface, narrow at the front and wide at the rear, along with the preset curvature along its length, automatically conforms to the physiological structure of the foot during wear, ensuring close contact between all areas of the foot and the midsole, avoiding gaps. The arc-shaped arch support 50, integrally formed around the perimeter of the upper base surface 20, precisely embeds into the arch depression area through the gradually convex protrusions on the inner side facing the first moisture-proof paper 21, providing continuous support for the arch, dispersing the pressure on the arch, and preventing fatigue.

[0037] The high-density foam layer at the front end of the upper substrate surface 20 is bonded to the substrate through a curved adhesive surface. When walking, the forefoot lands, and the high-density foam layer first absorbs part of the impact force and rebounds quickly. The elastic buffer layer 61 embedded in the front end of the lower substrate surface 30 forms a secondary buffer from below, which works in conjunction with the high-density foam layer to further reduce the impact on the forefoot. At the same time, the non-woven fabric layer 62 covers the elastic buffer layer 61, which not only protects the buffer layer but also improves breathability and reduces stuffiness.

[0038] The first moisture-proof paper 21 at the rear end of the upper base surface 20 covers the base surface and is adjacent to the first comfort layer 40, preventing foot sweat and external moisture from penetrating into the base and padding layer, thus preventing the material from becoming moldy and softening; each component is fixed by an adhesive process, and the positioning recess 22 physically limits the moisture-proof paper, ensuring that the components are not easily displaced or damaged, and extending the service life of the midsole.

[0039] The positioning recess 22 in the center of the upper base surface 20 cooperates with the positioning structure of the shoe body component during assembly to quickly determine the position of the midsole and avoid displacement. The triangular embedded recess 23 at the rear end of the upper base surface 20, together with the first through hole 24 and the second through holes 25 at both ends of the first moisture-proof paper 21, provide a through channel for fasteners, so that the midsole and the upper, sole and other components form a multi-point firm connection. At the same time, the through holes allow air circulation inside the midsole, taking into account both stability and breathability, and ensuring that the midsole maintains structural integrity and functional stability during long-term use.

[0040] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A comfort insole, characterized by, The midsole includes a midsole base with a specific contour shape, the midsole base includes an upper base surface and a lower base surface located below the upper base surface; a first comfort layer is provided at the front end of the upper base surface; an arch support portion is integrally formed in the peripheral area of ​​the upper base surface; and a second comfort layer is provided at the front end of the lower base surface. The rear surface of the upper substrate is covered with a first moisture-proof paper, which is disposed adjacent to the first comfort layer. The central area of ​​the upper substrate surface is provided with a plurality of positioning recesses arranged in parallel, the positioning recesses penetrating the first moisture-proof paper and extending into the interior of the upper substrate surface.

2. The comfort insole of claim 1, wherein The midsole substrate is a rigid load-bearing substrate.

3. The comfort insole of claim 1, wherein The three-dimensional shape of the midsole substrate is an irregular curved surface that is narrow at the front end and wide at the rear end. The midsole substrate has a curved profile with a preset arc along its length.

4. The comfort insole of claim 1, wherein The upper substrate surface has three recessed holes arranged in a triangle in the rear end area corresponding to the first moisture-proof paper. Each recessed hole has a first through hole at its bottom, and the first through hole passes through the first moisture-proof paper, the upper substrate surface and the lower substrate surface in sequence.

5. The comfort insole of claim 1, wherein The upper substrate surface is provided with second through holes at both ends corresponding to the first moisture-proof paper. The second through holes pass through the first moisture-proof paper, the upper substrate surface and the lower substrate surface in sequence.

6. The comfort insole of claim 1, wherein The first comfort layer is a high-density foam layer, which is bonded to the upper substrate surface, and the bonding surface between the high-density foam layer and the upper substrate surface is perfectly adapted to the curved contour of the upper substrate surface.

7. The comfort midsole according to claim 1, characterized in that, The arch support is curved and streamlined, with its inner side protruding towards the first moisture-proof paper. The height of the protrusion gradually varies along the length of the arch support to fit the curve of the human foot arch.

8. The comfort insole of claim 1, wherein The second comfort layer includes an elastic cushioning layer and a non-woven fabric layer; the elastic cushioning layer is embedded in the area of ​​the lower substrate surface; the non-woven fabric layer covers the upper surface of the elastic cushioning layer, and the periphery of the non-woven fabric layer is bonded to the lower substrate surface.

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