Sole and nurse shoe

By designing a groove on the top surface of the outsole that matches the midsole, combined with a cushioning layer and a TPU film layer, the problems of easy damage and insufficient comfort of the midsole are solved, thus improving the stability and comfort of the outsole.

CN223473175UActive Publication Date: 2025-10-28JINJIANG JINGUANG SHOE MATERIAL CO LTD
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Patent Information

Application Number
CN202422668249.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-10-28
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

Existing midsole insoles are prone to damage after prolonged use and fail to provide comfort for long periods of standing or walking.

Method used

The design incorporates a groove formed on the top surface of the outsole that fits the midsole. The midsole includes a fabric layer, a cushioning layer, and a TPU film layer. The cushioning layer is composed of adhesive and polymer foam particles, which are popcorn-shaped. The TPU film layer restricts the shape of the cushioning layer. The midsole can be fixedly or detachably mounted on the outsole.

Benefits of technology

It improves the bonding strength between the midsole and outsole, effectively absorbs and disperses foot impact, provides uniform cushioning performance, and increases user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

A shoe sole and a nurse shoe comprise an outsole and a midsole and are characterized in that a groove matched with the midsole is formed in the top face of the outsole, the midsole can be arranged in the groove, the midsole comprises a fabric layer and a buffer layer which are sequentially arranged from top to bottom, the buffer layer comprises an adhesive and polymer foaming particles mixed in the adhesive, and the polymer foaming particles are arranged in the groove. The groove in the top face of the outsole is matched with the midsole, the midsole can be firmly embedded in the groove of the outsole through the design, the midsole is not prone to shifting in the walking or moving process, the polymer foaming particles in the buffer layer are mixed in the adhesive, and therefore the service life of the insole is prolonged. By means of the structure, impact force borne by the feet during walking, running or jumping can be effectively absorbed and dispersed, and comfort of a user is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of shoe soles, and more particularly to a shoe sole and a nurse's shoe. Background Technology

[0002] Chinese patent document CN1205190A discloses a shoe sole in which an elastic plate is embedded in either the lower or middle insole, so that the portion corresponding to the toe portion of the foot is tilted upward at a predetermined angle.

[0003] In the above solution, the midsole is placed on the lower insole, and the middle insole will continue to rub against the elastic plate after long-term use, causing damage to the middle insole. Furthermore, the middle insole cannot provide a comfortable feel for the wearer during long-term standing or walking. Utility Model Content

[0004] The purpose of this invention is to provide a more comfortable shoe sole.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A shoe sole includes an outsole and a midsole, characterized in that: the top surface of the outsole has a groove adapted to the midsole, the midsole can be disposed in the groove, the midsole includes a fabric layer and a cushioning layer arranged sequentially from top to bottom, the cushioning layer includes an adhesive and polymer foam particles mixed in the adhesive.

[0007] By adopting the above technical solution, the groove on the top surface of the outsole is adapted to the midsole. This design allows the midsole to be firmly embedded in the groove of the outsole. During walking or exercise, the midsole will not easily shift. The polymer foam particles in the cushioning layer are mixed in the adhesive. This structure can effectively absorb and disperse the impact force on the foot when walking, running or jumping, and greatly improve the user's comfort.

[0008] The midsole also includes a TPU film layer, which is laminated to the bottom surface of the cushioning layer.

[0009] By adopting the above technical solution, when the sole is subjected to greater pressure, the polymer foam particles in the cushioning layer may tend to deform or shift excessively. The TPU film layer can play a certain role in restricting the cushioning layer, allowing it to maintain a relatively stable shape under pressure, preventing localized excessive compression or expansion, and thus ensuring that the sole provides uniform cushioning performance throughout its use.

[0010] The midsole includes a body that fits into the groove and an outer edge that extends outward from the edge of the body and overlaps the top surface of the outsole.

[0011] By adopting the above technical solution, the outer edge is superimposed on the top surface of the outsole, which increases the contact area between the two. A larger contact area means that it can withstand greater tensile and compressive forces in the vertical direction, thereby improving the firmness of the connection between the midsole and the outsole.

[0012] The polymer foamed particles are popcorn particles, and the diameter of the polymer foamed particles is 1-5mm.

[0013] By adopting the above technical solution, popcorn kernels with a diameter of 1-5mm are of moderate size. When the sole of the shoe is impacted, these kernels can be fully compressed and deformed. Since the popcorn kernels themselves have a certain degree of elasticity and resilience, when the foot lands and generates impact force, they can effectively absorb and buffer these impact forces, converting them into elastic potential energy inside the kernels, and then slowly releasing them, thereby reducing the pressure on the feet and legs.

[0014] The adhesive is a gelatin.

[0015] By adopting the above technical solution, jelly glue is usually made from the hydrolysis of animal collagen. Its main component is protein. Compared with some chemically synthesized adhesives, it is a relatively environmentally friendly material. Jelly glue has good adhesion and can firmly bond polymer foam particles together.

[0016] The thickness of the buffer layer is 5-10 mm.

[0017] By adopting the above technical solution, within this thickness range, when the foot is subjected to impact, the buffer layer can effectively compress and deform, dispersing the impact force in a larger space. The thicker buffer layer allows the polymer foam particles to have more compression stroke, better absorb and transform the impact force, thereby reducing the burden on the feet and legs.

[0018] The fabric layer is made of leather.

[0019] By adopting the above technical solutions, leather fabrics are usually soft in texture, providing a comfortable feeling when in contact with the feet, and also have high wear resistance and corrosion resistance.

[0020] The thickness of the leather fabric is 0.5-2mm.

[0021] By adopting the above technical solutions, within this thickness range, the leather material can conform well to the contour of the foot. It will not be too thick and stiff, hindering the natural movement of the foot, nor will it be too thin and lose the necessary support. Moreover, leather with a thickness of 0.5-2mm has an advantage in material cost, which can reasonably control production costs while ensuring the quality and performance of the sole.

[0022] The outsole has an upwardly extending sidewall around its perimeter, and the insole is located inside the sidewall.

[0023] By adopting the above technical solution, the sidewall can effectively prevent the midsole from moving to the side, ensuring the stability of the midsole's position on the outsole, thereby providing stable support for the foot and reducing the risk of slipping or spraining due to midsole displacement. Attached Figure Description

[0024] Figure 1 This is a top view of the bottom of the present invention.

[0025] Figure 2 This is a bottom view of the bottom of the present invention.

[0026] Figure 3 This is a left view of the bottom of the present invention.

[0027] Figure 4 for Figure 3 A cross-sectional view along the AA direction.

[0028] Figure 5 This is a cross-sectional view of the installation of the insole and outsole of this utility model. Detailed Implementation

[0029] Reference Figures 1 to 5 The following describes a shoe sole, and the technical solution of this utility model will be further explained through specific embodiments and in conjunction with the accompanying drawings:

[0030] A shoe sole includes an outsole 1 and a midsole 2. The top surface of the outsole 1 has a groove 11 that is adapted to the midsole 2. The midsole 2 can be fixedly installed in the groove 11 or detachably installed in the groove 11. The specific design can be selected and designed according to the user's needs. The periphery of the outsole 1 also has an upwardly extending side panel 12. The midsole 2 is located inside the side panel 12. The side panel 12 can play a positioning role for the midsole 2 and can also prevent the midsole 2 from falling out of the groove 11 or shifting during use.

[0031] The midsole 2 includes a main body 20 adapted to the groove 11 and an outer edge 201 extending outward from the edge of the main body 20 and stacked on the top surface of the outsole. Both the main body 20 and the outer edge 201 of the midsole 2 include a fabric layer 21, a cushioning layer 22, and a TPU film layer 23 arranged sequentially from top to bottom. The fabric layer 21 is made of leather and has a thickness of 0.5-2mm. Different thicknesses of the fabric layer 21 can meet the needs of different users. In actual production, the appropriate thickness of the fabric layer 21 can be selected according to the user's needs. The cushioning layer 22 includes an adhesive 221 and polymer foam particles 222 mixed in the adhesive 221. The adhesive 221 is a gel-like substance. While having good adhesion, gel-like substances are also a relatively environmentally friendly material, and using gel-like substances can reduce the potential harm to human health from the volatilization of chemicals. The polymer foam particles 222 can be used for common foaming... Popcorn pellets, a common polymer foam material, have relatively low production costs. The diameter of these polymer foam pellets 222 is 1-5mm. When the sole of the shoe is impacted, these pellets can be fully compressed and deformed. Due to the elasticity and resilience of the popcorn pellets themselves, they can effectively absorb and buffer the impact force when the foot lands, converting it into elastic potential energy within the pellets and then slowly releasing it, thereby reducing the pressure on the feet and legs. The buffer layer 22, composed of adhesive 221 and polymer foam pellets 222, has a thickness of 5-10mm. Within this thickness range, the buffer layer 22 can effectively compress and deform, dispersing the impact force in a larger space. The thicker buffer layer allows the polymer pellets 222 to have more compression stroke, better absorb and convert the impact force, thereby reducing the burden on the feet and legs. The TPU film 23 is laminated on the bottom surface of the cushioning layer 22. When the sole is subjected to greater pressure, the polymer foam particles 222 and adhesive 221 in the cushioning layer 22 may tend to deform or shift excessively. The TPU film 23 can play a certain limiting role in the cushioning layer 22, so that the cushioning layer 22 maintains a relatively stable shape when under pressure, preventing local excessive compression or expansion, thereby ensuring that the sole provides uniform cushioning performance throughout the entire use process.

[0032] During assembly, the midsole 2 can be fixed to the top surface of the outsole 1 as needed, or it can be detachably set on the outsole 1. During use, the above-mentioned sole can be set on the sole of nurse shoes or other shoes. When the above-mentioned sole is applied to nurse shoes, the midsole 2 can effectively relieve fatigue from standing or walking for a long time, thereby increasing the user's comfort.

[0033] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model shall still fall within the scope of the patent of the present utility model.

Claims

1. A shoe sole, comprising an outsole and a midsole, characterized in that: The top surface of the outsole has a groove adapted to the insole, and the insole can be placed in the groove. The insole includes a fabric layer and a cushioning layer arranged from top to bottom. The cushioning layer includes an adhesive and polymer foam particles mixed in the adhesive.

2. The shoe sole according to claim 1, characterized in that: The midsole also includes a TPU film layer, which is laminated to the bottom surface of the cushioning layer.

3. The sole of a shoe according to claim 1, characterized in that: The midsole includes a body that fits into the groove and an outer edge that extends outward from the edge of the body and overlaps the top surface of the outsole.

4. A shoe sole according to claim 1, characterized in that: The polymer foamed particles are popcorn particles, and the diameter of the polymer foamed particles is 1-5mm.

5. A shoe sole according to claim 1, characterized in that: The adhesive is a gelatin.

6. A shoe sole according to claim 1, characterized in that: The thickness of the buffer layer is 5-10 mm.

7. A shoe sole according to claim 1, characterized in that: The fabric layer is made of leather.

8. A shoe sole according to claim 7, characterized in that: The thickness of the leather fabric is 0.5-2mm.

9. A shoe sole according to any one of claims 1 to 8, characterized in that: The outsole has an upwardly extending sidewall around its perimeter, and the insole is located inside the sidewall.

10. A nurse's shoe, comprising the sole as described in any one of claims 1 to 9.

Citation Information

Patent Citations

  • Shoe sole

    CN1205190A