Combined insole and attached insole

Abstract

The combined type insole comprises a lower layer insole body and the attached insole body, the attached insole body is placed on the lower layer insole body, the attached insole body comprises a base layer and a hot melt adhesive film layer, the base layer is provided with breathable holes, the hot melt adhesive film layer is fixed to the lower surface of the base layer, the breathable holes are communicated with the hot melt adhesive film layer, and the breathable holes are communicated with the hot melt adhesive film layer. A breathable channel is arranged on the hot melt adhesive film layer, the attached insole is in contact with the lower insole through the hot melt adhesive film layer, and the hot melt adhesive film layer prevents the attached insole from sliding on the lower insole. According to the combined insole and the attached insole, the cost can be reduced while the foot is kept dry and comfortable.

Description

Technical Field

[0001] This utility model relates to the field of insole technology, and in particular to a combined insole and an attached insole. Background Technology

[0002] Human feet have numerous sweat glands and tend to sweat easily during daily activities. Ordinary insoles lack sufficient sweat absorption, leading to sweat buildup, dampness, and discomfort such as stuffiness and stickiness. This damp environment promotes the growth of bacteria and fungi, which decompose sweat and skin metabolites, producing odors and potentially causing athlete's foot, tinea pedis, and paronychia. In contrast, sweat-absorbing insoles quickly absorb sweat, keeping feet dry and comfortable, inhibiting bacterial and fungal growth, and reducing odor.

[0003] Multi-layered sweat-absorbing insoles feature an upper layer made of soft, skin-friendly cotton or plush material that quickly absorbs foot sweat, providing a comfortable feel. This is especially suitable for those who require high insole softness, such as the elderly, children, and people with sensitive skin. The lower sweat-absorbing layer is made of activated carbon, bamboo charcoal fiber, and other materials, effectively absorbing sweat from the upper layer. This keeps feet dry, particularly beneficial for those who sweat heavily, such as athletes and outdoor workers.

[0004] Although multi-layered sweat-absorbing insoles have good sweat-absorbing effects and can effectively keep feet dry, they require a one-way permeation layer. The one-way permeation layer generally uses a special pore structure to achieve one-way permeation, or is made of materials with special hydrophilic and hydrophobic properties. This makes the manufacturing process of the insoles complex and the cost high. Utility Model Content

[0005] The purpose of this invention is to provide a combined insole and an attached insole that can keep feet dry while reducing costs.

[0006] To achieve the above objectives, this utility model provides a combined insole, comprising a lower insole and an attachment insole. The attachment insole is placed on the lower insole. The attachment insole includes a base layer and a hot melt adhesive film layer. The base layer has breathable pores, and the hot melt adhesive film layer is fixed to the lower surface of the base layer. The hot melt adhesive film layer has breathable channels. The attachment insole contacts the lower insole through the hot melt adhesive film layer, and the hot melt adhesive film layer prevents the attachment insole from sliding on the lower insole.

[0007] In a preferred embodiment, the hot melt adhesive film layer includes a plurality of hot melt adhesive film strips arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips, and the gaps on both sides of the hot melt adhesive film strips forming the air-permeable channels.

[0008] In a preferred embodiment, the base layer is made of a water-repellent material, and the lower insole includes an absorbent layer made of a hydrophilic material.

[0009] This utility model also provides an attachable insole that can be placed on a lower insole. The attachable insole includes a base layer and a hot melt adhesive film layer. The base layer has breathable pores, and the hot melt adhesive film layer is fixed to the lower surface of the base layer. The hot melt adhesive film layer is provided with breathable channels. When the attachable insole is placed on the lower insole, the hot melt adhesive film layer contacts the lower insole, and the hot melt adhesive film layer prevents the attachable insole from sliding on the lower insole.

[0010] In a preferred embodiment, the hot melt adhesive film layer includes a plurality of hot melt adhesive film strips arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips, and the gaps on both sides of the hot melt adhesive film strips forming the air-permeable channels.

[0011] In a preferred embodiment, the base layer is made of a water-repellent material.

[0012] In a preferred embodiment, the base layer is made of nonwoven fabric.

[0013] This utility model also provides an attachable insole that can be placed on a lower insole. The attachable insole includes a base layer, a connecting layer, and a hot melt adhesive film layer. The base layer has breathable pores. The connecting layer is disposed between the base layer and the hot melt adhesive film layer. The hot melt adhesive film layer is fixed to the lower surface of the base layer through the connecting layer. The hot melt adhesive film layer has breathable channels that pass through the connecting layer. When the attachable insole is placed on the lower insole, the hot melt adhesive film layer contacts the lower insole and prevents the attachable insole from sliding on the lower insole.

[0014] In a preferred embodiment, the hot melt adhesive film layer includes a plurality of hot melt adhesive film strips arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips, and the gaps on both sides of the hot melt adhesive film strips forming the air-permeable channels.

[0015] In a preferred embodiment, the connecting layer is made of hot melt adhesive.

[0016] The difference between this invention and existing technologies lies in the fact that the combined insole and attached insole provided by this invention use an attached insole as a base layer and a hot melt adhesive film layer fixed to the lower surface of the base layer. When using this combined insole, the attached insole is placed on the lower insole. Sweat produced by the feet can permeate downwards in the form of water vapor through the breathable pores on the base layer and the breathable channels on the hot melt adhesive film layer, accumulating on the lower insole to form a liquid. Simultaneously, because the hot melt adhesive film layer is airtight and watertight, the portion of the lower insole with the hot melt adhesive film fixed thereon can effectively prevent sweat from seeping upwards. Furthermore, since the attached insole is in contact with the lower insole through the hot melt adhesive film layer, the hot melt adhesive film layer is heated by the body temperature of the foot, increasing its temperature and making its surface more viscous, providing excellent anti-slip properties and preventing the attached insole from sliding on the lower insole, thus ensuring the comfort of wearing the combined insole. Because the hot melt adhesive film layer has a certain reverse osmosis effect and is easy to replace, the combined insole does not require a separate reverse osmosis layer. Therefore, the combined insole and attached insole provided by this utility model can reduce costs while keeping feet dry.

[0017] Meanwhile, because the hot melt adhesive film layer has a good anti-slip effect, the attached insole can be relatively thin and soft, making it more comfortable to wear. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a combined insole according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A top view of the modular insole shown;

[0020] Figure 3 yes Figure 2 A cross-sectional view along the AA direction;

[0021] Figure 4 yes Figure 3 Enlarged view at point B;

[0022] Figure 5 This is a schematic diagram of the structure of an attached insole provided by this utility model, wherein the hot melt adhesive film strip is arranged along the length direction of the attached insole;

[0023] Figure 6 yes Figure 5 A magnified view at point C;

[0024] Figure 7 This is a schematic diagram of the structure of an attached insole provided by this utility model, wherein the hot melt adhesive film is arranged along the width direction of the attached insole;

[0025] Figure 8This is a partial cross-sectional view of another type of attached insole provided by this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Attached insole; 11-Base layer; 12-Hot melt adhesive film layer; 121-Breathable channel; 122-Hot melt adhesive film strip; 13-Connecting layer; 2-Lower insole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this application. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this application.

[0029] The accompanying drawings show structural schematic diagrams according to embodiments of this application. These drawings are not drawn to scale, and some details have been enlarged for clarity, and some details may have been omitted. The various regions, shapes, and their relative sizes and positional relationships shown in the drawings are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / structures of different shapes, sizes, and relative positions according to actual needs.

[0030] Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0032] The combined insole and attached insole provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0033] refer to Figures 1-4 As shown, the present invention provides a combined insole, including a lower insole 2 and an attached insole 1.

[0034] The lower insole 2 is used to place the attached insole 1 and absorb sweat. It can employ various existing insole structures, with a sweat-absorbing insole structure being preferred. For example, the lower insole 2 can consist of a bottom layer, a support layer, and a water-absorbing layer. The bottom layer can be made of materials such as rubber. The support layer is fixed above the bottom layer and provides support for the foot, maintaining the shape of the insole and preventing deformation during use. The support layer can be made of materials such as EVA or TPU. The water-absorbing layer is fixed above the support layer and is used to absorb and store large amounts of sweat. It can be made of hydrophilic materials, such as superabsorbent polymers or sponges. The water-absorbing layer can also be designed as a multi-layered structure. For example, superabsorbent polymer particles can be evenly distributed between two layers of sponge. When sweat reaches the water-absorbing layer, the sponge can quickly absorb the sweat and transfer it to the superabsorbent polymer for storage. Simultaneously, the elasticity of the sponge ensures that the insole maintains a certain thickness and comfort after absorbing sweat.

[0035] like Figure 3 , Figure 4 As shown, the attached insole 1 is placed on the lower insole 2. The attached insole 1 includes a base layer 11 and a hot melt adhesive film layer 12. The base layer 11 has breathable pores. The breathable pores refer to holes or gaps, as well as holes and gaps. The base layer 11 can be made of porous materials such as non-woven fabric.

[0036] The hot melt adhesive film layer 12 can be fixed to the lower surface of the base layer 11 by coating or other methods. Specifically, the hot melt adhesive can be melted by a coating machine and evenly coated onto the base layer 11 through a coating head to form a hot melt adhesive film. The hot melt adhesive film layer 12 is provided with a breathable channel 121, wherein the hot melt adhesive film itself is not breathable or water-permeable, and the breathable channel 121 refers to a vertically penetrating channel provided on the hot melt adhesive film layer 12, thereby communicating with the pores on the base layer 11.

[0037] The attached insole 1 contacts the lower insole 2 through the hot melt adhesive film layer 12. When the attached insole 1 is placed on the lower insole 2, the hot melt adhesive film layer 12 contacts the lower insole 2, and the hot melt adhesive film layer 12 prevents the attached insole 1 from sliding on the lower insole 2.

[0038] The combined insole provided in the above embodiment consists of an attached insole 1 composed of a base layer 11 and a hot melt adhesive film layer 12 coated on the lower surface of the base layer 11. The attached insole 1 is placed on the lower insole 2. When the user wears this combined insole in their shoes, the sweat produced by the feet permeates downwards in the form of water vapor through the breathable pores on the base layer 11 and the breathable channels on the hot melt adhesive film layer 12, accumulating in the lower insole 2 to form liquid sweat. At the same time, since the hot melt adhesive film on the hot melt adhesive film layer 12 is formed by hot melt adhesive coating, it has the properties of being airtight and water-permeable. Therefore, the part of the lower insole 2 that is fixedly coated with the hot melt adhesive film can effectively prevent the sweat in the lower insole 2 from seeping upwards, so that the hot melt adhesive film layer 12 has a certain one-way permeability effect. In addition, since the attached insole 1 is placed on the lower insole 2, it can be easily replaced, thus keeping the feet dry. Simultaneously, the attached insole 1 contacts the lower insole 2 through its hot melt adhesive film layer 12. As the hot melt adhesive film layer 12 is heated by the body temperature of the foot, its surface becomes more adhesive, providing excellent anti-slip properties and preventing the attached insole 1 from sliding on the lower insole 2. This ensures the comfort of wearing the combined insole. Furthermore, since the attached insole 1 is placed on top of the lower insole 2, it can be easily separated. Therefore, if the attached insole 1 is damaged, it can be easily replaced and reused without replacing the entire insole. Moreover, the hot melt adhesive film layer 12 in the combined insole helps prevent sweat backflow, eliminating the need for a separate backflow layer. In summary, the combined insole and attached insole provided by this invention can keep feet dry while reducing costs.

[0039] In this invention, the breathable channels 121 provided on the hot melt adhesive film layer 12 can adopt various hole structures such as rectangular holes and circular holes, or various gap forms such as strip gaps. In a preferred embodiment, the hot melt adhesive film layer 12 includes a plurality of hot melt adhesive film strips 122 arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips 122, and the gaps on both sides of the hot melt adhesive film strips 122 form the breathable channels 121. Figure 5 , Figure 6 A hot melt adhesive film strip 122 is shown arranged along the length of the insole. Figure 7 A hot melt adhesive film strip 122 is shown, which is arranged along the width direction of the insole. The width of the hot melt adhesive film strip 122 can be 4 mm to 6 mm, preferably 5 mm, and the spacing between the hot melt adhesive film strips 122 can also be 4 mm to 6 mm, preferably 5 mm.

[0040] In this invention, the base layer 11 is preferably made of a water-repellent material, such as meltblown nonwoven fabric that has undergone water-repellent treatment. In this embodiment, by setting the base layer 11 to be made of a water-repellent material, and using a hydrophilic material or a special insole containing a superabsorbent polymer as the matching lower insole 2, the attached insole 1 can have a better one-way penetration effect.

[0041] Based on the concept of the combined insole provided in the above embodiments, this utility model also provides an attachable insole 1, which can be placed on the lower insole 2. (Reference) Figure 4 As shown, the attached insole 1 includes a base layer 11 and a hot melt adhesive film layer 12. The base layer 11 has breathable pores, and the base layer 11 is preferably made of non-woven fabric. Since non-woven fabric is made by arranging short fibers or filaments into a fiber web structure through directional or random arrangement, and then reinforcing it by mechanical, thermal bonding or chemical methods, there are many tiny pores between the fibers. These pores are interconnected, forming a network structure similar to capillaries, thus allowing water vapor to circulate freely.

[0042] The hot melt adhesive film layer 12 can be fixed to the lower surface of the base layer 11 by coating or other methods. The hot melt adhesive film layer 12 is provided with breathable channels 121, wherein the hot melt adhesive film itself is neither air-permeable nor water-permeable, and the breathable channels 121 are vertically penetrating channels on the hot melt adhesive film layer 12, thereby communicating with the pores on the base layer 11. When the attached insole 1 is placed on the lower insole 2, the hot melt adhesive film layer 12 contacts the lower insole 2, and the hot melt adhesive film layer 12 prevents the attached insole 1 from sliding on the lower insole 2.

[0043] like Figure 5-7 As shown, the hot melt adhesive film layer 12 includes a plurality of hot melt adhesive film strips 122 arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips 122, and the gaps on both sides of the hot melt adhesive film strips 122 forming the breathable channels 121. The width of the hot melt adhesive film strips 122 can be 4 mm to 6 mm, preferably 5 mm, and the gap between the hot melt adhesive film strips 122 can also be 4 mm to 6 mm, preferably 5 mm. The base layer 11 is preferably made of a water-repellent material.

[0044] Similar to the attached insole provided in the above embodiments, this utility model also provides an attached insole 1 that can be placed on the lower insole 2. The difference between this embodiment and the above embodiments is that the attached insole 1 provided in this embodiment is further provided with a connecting layer 13. Specifically, refer to... Figure 8As shown, the attached insole 1 includes a base layer 11, a connecting layer 13, and a hot melt adhesive film layer 12. The base layer 11 has breathable pores. The connecting layer 13 is disposed between the base layer 11 and the hot melt adhesive film layer 12. The hot melt adhesive film layer 12 is fixed to the lower surface of the base layer 11 by the connecting layer 13. The hot melt adhesive film layer 12 has breathable channels 121 that pass through the connecting layer 13. When the attached insole 1 is placed on the lower insole 2, the hot melt adhesive film layer 12 contacts the lower insole 2, preventing the attached insole 1 from sliding on the lower insole 2. Preferably, the hot melt adhesive film layer 12 includes a plurality of strip-shaped hot melt adhesive film strips 122, with a gap between adjacent hot melt adhesive film strips 122. The gaps on both sides of the hot melt adhesive film strips 122 form the breathable channels 121. The connecting layer 13 is made of hot melt adhesive, and the hot melt adhesive used in the connecting layer 13 is a hot melt adhesive with high viscosity, so as to better fix the hot melt adhesive film layer 12 to the base layer 11.

[0045] The attached insole provided by this utility model consists of two parts: a base layer 11 and a hot melt adhesive film layer 12. The base layer 11 can be made of materials such as non-woven fabric, and the attached insole 1 can be relatively thin and soft. Therefore, the lower insole 2 can also be made of various existing sweat-absorbing insoles. Thus, the attached insole 1 provided by this utility model can be sold separately or used in conjunction with other existing insoles.

[0046] The order of the above embodiments is for ease of description only and does not represent the superiority or inferiority of the implementation methods.

[0047] Finally, it should be noted that although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A modular insole, characterized in that... The insole includes an attached insole (1) and a lower insole (2). The attached insole (1) is placed on the lower insole (2). The attached insole (1) includes a base layer (11) and a hot melt adhesive film layer (12). The base layer (11) has breathable pores. The hot melt adhesive film layer (12) is fixed on the lower surface of the base layer (11). The hot melt adhesive film layer (12) is provided with breathable channels (121). The attached insole (1) contacts the lower insole (2) through the hot melt adhesive film layer (12). When the attached insole (1) is placed on the lower insole (2), the hot melt adhesive film layer (12) contacts the lower insole (2). The hot melt adhesive film layer (12) prevents the attached insole (1) from sliding on the lower insole (2).

2. The combined insole according to claim 1, characterized in that, The hot melt adhesive film layer (12) includes a plurality of hot melt adhesive film strips (122) arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips (122), and the gaps on both sides of the hot melt adhesive film strips (122) form the air-permeable channel (121).

3. The combined insole according to claim 1, characterized in that, The base layer (11) is made of water-repellent material, and the lower insole (2) includes an absorbent layer made of hydrophilic material.

4. An attachable insole, said attachable insole (1) being able to be placed on a lower insole (2), characterized in that, The attached insole (1) includes a base layer (11) and a hot melt adhesive film layer (12). The base layer (11) has breathable pores. The hot melt adhesive film layer (12) is fixed on the lower surface of the base layer (11). The hot melt adhesive film layer (12) is provided with breathable channels (121). When the attached insole (1) is placed on the lower insole (2), the hot melt adhesive film layer (12) contacts the lower insole (2) and prevents the attached insole (1) from sliding on the lower insole (2).

5. The attached insole according to claim 4, characterized in that, The hot melt adhesive film layer (12) includes a plurality of hot melt adhesive film strips (122) arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips (122), and the gaps on both sides of the hot melt adhesive film strips (122) form the air-permeable channel (121).

6. The attached insole according to claim 4, characterized in that, The base layer (11) is made of non-woven fabric.

7. The attached insole according to claim 4, characterized in that, The base layer (11) is made of water-repellent material.

8. An attachable insole, said attachable insole (1) being able to be placed on a lower insole (2), characterized in that, The attached insole (1) includes a base layer (11), a connecting layer (13), and a hot melt adhesive film layer (12). The base layer (11) has breathable pores. The connecting layer (13) is disposed between the base layer (11) and the hot melt adhesive film layer (12). The hot melt adhesive film layer (12) is fixed to the lower surface of the base layer (11) through the connecting layer (13). The hot melt adhesive film layer (12) is provided with a breathable channel (121) that passes through the connecting layer (13). When the attached insole (1) is placed on the lower insole (2), the hot melt adhesive film layer (12) contacts the lower insole (2) and prevents the attached insole (1) from sliding on the lower insole (2).

9. The attached insole according to claim 8, characterized in that, The hot melt adhesive film layer (12) includes a plurality of hot melt adhesive film strips (122) arranged in a strip shape, with a gap between adjacent hot melt adhesive film strips (122), and the gaps on both sides of the hot melt adhesive film strips (122) form the air-permeable channel (121).

10. The attached insole according to claim 8, characterized in that, The connecting layer (13) is made of hot melt adhesive.

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