Anti-slip structure of EVA (Ethylene Vinyl Acetate) insole
By integrating the die-cut anti-slip sheet with the EVA midsole, the problem of complex anti-slip design and insufficient performance of EVA shoe midsoles is solved, thereby improving wear resistance and anti-slip performance, simplifying the process and enhancing the safety and comfort of the shoes.
Patent Information
- Application Number
- CN202520388125.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing anti-slip design process for EVA shoe midsoles is complex, and the wear resistance and anti-slip performance are insufficient to meet high-performance requirements. The process of combining traditional raw rubber sheets with EVA materials is lengthy and has limited effect.
The anti-slip sheet is integrally molded with the EVA midsole through die cutting. It combines POR anti-slip sheet, NR anti-slip sheet or EVA anti-slip sheet, and is directly hot-pressed through interlocking groove and anti-slip mesh design, which simplifies the process and improves wear resistance and anti-slip performance.
The molding process has been simplified, the wear resistance and anti-slip performance of the sole have been enhanced, the safety and comfort of the wearer have been improved, the appearance is flat and beautiful, and the service life of the shoes has been extended.
Smart Images
Figure CN223667380U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to shoe material technical field, especially a kind of EVA middle sole anti-skid structure. BACKGROUND
[0002] In the manufacturing process of shoe material, for the wear resistance and wet skid resistance performance improvement of EVA shoe middle sole, a common method is to embed anti-skid sheet in its structure, and to be integrated into shape with EVA shoe middle sole through hot-pressing process, so as to give the shoes excellent anti-skid characteristics.
[0003] The anti-skid design of traditional EVA shoe middle sole relies on the combined application of rubber raw sheet and EVA material. This combination aims to provide double effects of wear resistance and anti-skid. However, the implementation process of this structure is quite complex: first, rubber raw sheets of specific thickness need to be pre-formed; then, these raw sheets need to undergo pre-vulcanization treatment in a vulcanization tank; then, hot melt adhesive film is applied to one side of the raw sheets, and they are processed into the required shape through die cutting; finally, these pre-processed rubber sheets are placed in a mold and hot-pressed with EVA material. Although this series of steps aims to achieve wear resistance and anti-skid, not only is the process lengthy and complicated, but the wear resistance and anti-skid performance of the final product still needs to be improved, making it difficult to meet the growing demand for high-performance wear.
[0004] In view of this, the present application aims to provide an EVA middle sole anti-skid structure to better solve the above technical problems. SUMMARY
[0005] To solve the above problems, the utility model provides an EVA middle sole anti-skid structure, which adopts die-cutting formed anti-skid sheet and EVA middle sole structure, can be directly hot-pressed and integrated into shape, and improves the forming quality.
[0006] The technical scheme adopted by the utility model is:
[0007] An EVA middle sole anti-skid structure, comprising an EVA middle sole and a die-cutting formed anti-skid sheet, the EVA middle sole is provided with an anti-skid part, the die-cutting formed anti-skid sheet is provided as any one of a POR anti-skid sheet, an NR anti-skid sheet and an EVA anti-skid sheet, and the die-cutting formed anti-skid sheet is integrally formed on the anti-skid part of the EVA middle sole.
[0008] Further, the die-cutting formed anti-skid sheet is hot-pressed and integrally formed on the anti-skid part of the EVA middle sole.
[0009] Further, the anti-skid part is provided with a fitting groove, and the thickness of the die-cutting formed anti-skid sheet matches the depth of the fitting groove, so that the die-cutting formed anti-skid sheet is completely fitted in the fitting groove.
[0010] Further, the die-cutting formed anti-skid sheet is provided with an anti-skid grid.
[0011] Further, the anti-skid grid is provided with anti-skid lines.
[0012] Further, the anti-skid lines in different anti-skid grids are provided in the same or different shapes.
[0013] Further, the wear resistance value DIN of the die-cutting formed anti-skid piece is less than 100.
[0014] The beneficial effects of the utility model are as follows:
[0015] The utility model provides an EVA middle sole anti-skid structure, including EVA middle sole and die -cutting formed anti -skid piece, the EVA middle sole is equipped with the anti -skid part, the die -cutting formed anti -skid piece is equipped with POR anti -skid piece, NR anti -skid piece and EVA anti -skid piece in any one, and the die -cutting formed anti -skid piece integral moulding setting in the anti -skid part of EVA middle sole, the utility model simple structure, reasonable in design, through the combination EVA middle sole and die -cutting formed anti -skid piece, and specifically adopt any one of POR anti -skid piece, NR anti -skid piece or EVA anti -skid piece as wear -resistant layer, compared with rubber raw rubber piece in prior art, not only enhance the wear resistance and anti -skid performance of shoe sole, improve the safety and comfort of wearer, set up through the anti -skid piece of suitable material, hot -pressing integral moulding can be, need not to carry out the pre -vulcanization and rubberizing film process, and the forming process is simple, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure schematic view in some embodiments of the application;
[0017] Figure 2 It is the picture of die -cutting formed anti -skid piece in some specific embodiments of the application;
[0018] Figure 3 It is the picture of EVA middle sole anti -skid structure in some specific embodiments of the application.
[0019] EXPLANATION OF REFERENCE NUMERALS:
[0020] EVA middle sole 1, die -cutting formed anti -skid piece 2, anti -skid part 3, anti -skid grid 4, anti -skid line 5. DETAILED DESCRIPTION
[0021] The technical scheme of the utility model will be described below in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of the utility model protection.
[0022] In the description of the utility model, it needs to explain, the term "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as the limitation of the utility model.
[0023] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "connection", "connection" should be broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be directly connected, also can be indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0024] As Figure 1 The EVA midsole anti-skid structure described in the embodiment, as shown in the figure, includes EVA midsole 1 and punch forming anti-skid sheet 2, the EVA midsole 1 is provided with anti-skid part 3, the punch forming anti-skid sheet 2 is set as any one of POR anti-skid sheet, NR anti-skid sheet and EVA anti-skid sheet, and the punch forming anti-skid sheet 2 is integrally formed on the anti-skid part 3 of the EVA midsole 1.
[0025] Specifically, in the embodiment, the punch forming anti-skid sheet 2 is integrally formed on the anti-skid part 3 of the EVA midsole 1.
[0026] The embodiment has simple structure and reasonable design, by combining EVA midsole 1 and punch forming anti-skid sheet 2, and specifically using any one of POR anti-skid sheet, NR anti-skid sheet or EVA anti-skid sheet as wear-resistant layer, compared with rubber raw rubber sheet in the prior art, not only enhances the wear resistance and anti-skid performance of the sole, improves the safety and comfort of the wearer, at the same time, through the setting of the anti-skid sheet of suitable material, the punch forming anti-skid sheet is hot pressed together with EVA, without pre-vulcanization and rubber film process, the molding process is simple and practical.
[0027] In some embodiments, the anti-skid part 3 is provided with an embedded groove, and the thickness of the punch forming anti-skid sheet 2 matches the depth of the embedded groove, so that the punch forming anti-skid sheet 2 is completely embedded in the embedded groove.
[0028] In the embodiment, the design of the embedding groove enables the anti-skid sheet to be precisely embedded in the anti-skid part 3 of the EVA midsole 1, forming an integrated anti-skid structure, which not only improves the stability and durability of the anti-skid sheet, but also ensures that the anti-skid sheet is completely embedded in the embedding groove by matching the thickness of the anti-skid sheet with the depth of the embedding groove, so that the appearance of the sole is more flat and beautiful.
[0029] In some embodiments, the punched and formed anti-skid sheet 2 is provided with a non-slip grid 4.
[0030] In the embodiment, the size and shape of the non-slip grid 4 on the surface of the anti-skid sheet can be adjusted according to actual needs, so as to increase the friction between the sole and the ground by setting the non-slip grid 4, improve the anti-skid performance of the shoe, and make walking on wet and slippery ground safer.
[0031] On the basis of the above-mentioned embodiments, the non-slip grid 4 is provided with a non-slip pattern 5.
[0032] In the embodiment, the setting of the non-slip pattern 5 further increases the contact area and friction between the sole and the ground, and further improves the anti-skid performance. Specifically, the non-slip patterns 5 in different non-slip grids 4 can be set to be the same or different shapes according to the needs of anti-skid and appearance.
[0033] In some embodiments, the wear resistance value DIN of the punched and formed anti-skid sheet 2 is less than 100.
[0034] In the embodiment, an anti-skid sheet with a wear resistance value DIN less than 100 is used to ensure that the anti-skid sheet has excellent wear resistance to withstand long-term friction and wear.
[0035] The following is a specific example, using a POR anti-skid sheet in the prior art, the component mass fraction ratio of which is as follows:
[0036]
[0037]
[0038] The material is made into a sheet, the anti-skid sheet is punched into the required shape, the anti-skid sheet is placed in a hot-pressing mold to ensure that it is completely clamped into the color separation groove, then the EVA blank is loaded into the mold, and the EVA midsole anti-skid structure of the utility model is integrally hot-pressed and formed. Figure 2 , the formed EVA midsole anti-skid structure is specifically referred to Figure 3 . Figure 3 The performance test is carried out on the anti-skid structure in the middle, the tensile strength between the POR anti-skid sheet and the EVA middle sole is 3.8 N / mm, the dry anti-skid is 0.65, and the wet anti-skid is 0.5, so it can be seen that the EVA middle sole anti-skid structure provided in the application has high combination strength with the EVA through specific selection of the anti-skid sheet material and setting of the anti-skid structure, the forming process is simple, and the anti-skid performance is good, so as to prolong the service life of the shoes, improve the comfort and safety of wearing, and have high practicability.
[0039] The above-described embodiments only express several embodiments of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. An EVA midsole anti-slip structure, characterized in that, The device includes an EVA midsole and a die-cut anti-slip sheet. The EVA midsole has an anti-slip portion, and the die-cut anti-slip sheet is any one of a POR anti-slip sheet, an NR anti-slip sheet, and an EVA anti-slip sheet. The die-cut anti-slip sheet is integrally formed on the anti-slip portion of the EVA midsole.
2. The EVA midsole anti-slip structure according to claim 1, characterized in that, The die-cut anti-slip sheet is integrally formed by hot pressing and disposed on the anti-slip part of the EVA midsole.
3. The EVA midsole anti-slip structure according to claim 1, characterized in that, The anti-slip part is provided with a fitting groove, and the thickness of the punched anti-slip sheet is matched with the depth of the fitting groove so that the punched anti-slip sheet is completely fitted into the fitting groove.
4. The EVA midsole anti-slip structure according to claim 1, characterized in that, The punched anti-slip sheet has an anti-slip mesh.
5. The EVA midsole anti-slip structure according to claim 4, characterized in that, The anti-slip mesh has anti-slip textures.
6. The EVA midsole anti-slip structure according to claim 5, characterized in that, The anti-slip textures within different anti-slip meshes may be set to the same or different shapes.
7. The EVA midsole anti-slip structure according to claim 1, characterized in that, The wear resistance value DIN of the punched anti-slip sheet is less than 100.