Anti-cracking sole

Abstract

The utility model relates to the technical field of shoe sole design, and provides an anti-cracking shoe sole which comprises a shoe sole body and an outer wrapping layer, the shoe sole body comprises an inner sole, a middle sole and an outer sole which are sequentially bonded from inside to outside, and bonding gaps are formed between the inner sole and the middle sole and between the middle sole and the outer sole; the outer wrapping layer wraps the outer side face of the sole body and the surface of the outsole, and the outer wrapping layer and the side edge of the sole body are bonded and fixed through a bonding layer; the outer wrapping layer is provided with an extending part extending to the side, away from the outsole, of the insole, and the extending part is used for being sewn and fixed to an upper. On the basis, the situation that bonding gaps between the layers of materials crack can be reduced, and the service life of the shoe sole can be kept long.

Description

Technical Field

[0001] The present application relates to the field of sole design technology, and in particular to an anti-cracking sole. Background Technology

[0002] Shoes are a necessity in life. They are classified into many types according to their uses and applicable surfaces, such as warmth, breathability, wear resistance, non-slip, strong grip, lightness, etc.

[0003] Some of the existing shoe soles are formed by directly foaming foam materials, while others are formed by bonding multiple layers of materials in sequence; for example, the Chinese patent with the authorization announcement number CN201919822U discloses a sports shoe sole, which is made by bonding the insole, midsole and outsole in sequence from top to bottom. By selecting different materials to make the corresponding insole, midsole or outsole, the sole can have different functions, such as cushioning, shock absorption, anti-slip performance, etc., so that the sole has good wearing comfort.

[0004] However, the insole and midsole, as well as the midsole and outsole, are fixed by bonding, and there will be bonding gaps on the outer side of the sole. After the shoes are worn for a period of time, or when the shoes are worn in extreme conditions, the bonding gaps may crack, which may cause the insole and midsole to separate from each other, and the midsole and outsole to separate from each other, affecting the normal wearing of the shoes, which needs to be improved. Contents of utility model

[0005] Based on this, the present application provides an anti-cracking sole, which can reduce the cracking of the bonding gaps between the layers of materials, and is conducive to maintaining a good service life of the sole.

[0006] The anti-cracking sole provided by this application adopts the following technical solution:

[0007] An anti-cracking sole comprises a sole body and an outer covering layer, wherein the sole body comprises an insole, a midsole and an outsole bonded in sequence from the inside to the outside, and bonding gaps are provided between the insole and the midsole, and between the midsole and the outsole; the outer covering layer covers the outer side surface of the sole body and the surface of the outsole, and the outer covering layer is bonded and fixed to the side edge of the sole body by an adhesive layer; the outer covering layer has an extension portion extending to the side of the insole away from the outsole, and the extension portion is used for sewing and fixing with the upper.

[0008] By adopting the above technical solutions, the present application wraps an outer cladding layer around the outer side surface and the outsole surface of the sole body, which can weaken the influence of the external environment on the glue inside the bonding gap, and the bonding layer on the inner side of the outer cladding layer can combine with the glue in the bonding gap, thereby reducing the occurrence of cracking in the bonding gap between the layers of materials. In addition, by providing an extension part and sewing and fixing it to the side surface of the shoe upper, the double connection method can reduce the situation where the outer cladding layer and the sole body are separated from each other, so that the anti-cracking sole has a good service life.

[0009] Optionally, the extension part is provided with a plurality of sewing grooves, and the sewing grooves are arranged at intervals along the outer peripheral edge of the outer cladding layer.

[0010] By adopting the above technical solutions, the setting of the sewing grooves can reduce the thickness of the local position of the extension part, and thus facilitate the sewing and fixing between the extension part and the side surface of the shoe upper, which is beneficial to improving the production efficiency of shoes.

[0011] Optionally, a plurality of anti-slip units are arranged on the surface of the outer cladding layer, and adjacent anti-slip units are close to each other; wherein, the anti-slip unit includes hexagonal patterns and structure grooves, the structure grooves are located inside the hexagonal patterns, and the structure grooves penetrate through to the inner side surface of the outer cladding layer.

[0012] By adopting the above technical solutions, when people wear shoes and step on a slippery ground, the accumulated water can be quickly and evenly dispersed to the bottom surface of the sole through the hexagonal patterns, so that a good frictional force is maintained between the sole and the ground, reducing the situation of slipping. The setting of the structure grooves can provide a deformation space for the outer cladding layer to deform when the outer cladding layer is stressed, which is beneficial to reducing the occurrence of local cracking of the outer cladding layer; and, since the outer cladding layer and the outsole surface are freely movable, after the structure grooves penetrate through to the inner side surface of the outer cladding layer, relative movement can occur between the outer cladding layer and the outsole when people wear shoes and walk, forming a breathing-like ventilation effect, which is beneficial to improving the breathability of the anti-cracking sole and reducing the growth of bacteria.

[0013] Optionally, the structure groove includes three symmetrically arranged structure segments, and the structure segments are locally connected to each other.

[0014] By adopting the above technical solutions, the structure grooves are jointly formed by the three structure segments, and the structure segments in different directions can allow the outer cladding layer to deform in different directions, thereby greatly improving the anti-cracking effect of the outer cladding layer, which is beneficial to making the anti-cracking sole have a good service life.

[0015] Optionally, the anti-slip unit further includes a plurality of preset holes arranged at the inner corner positions of the hexagonal patterns, and a non-slip structure for reducing the formation of a water film is jointly formed between adjacent preset holes.

[0016] By adopting the above technical solution, by setting preset holes to form an anti-slip structure in combination, when people step on a wet ground, the anti-slip structure can reduce the generation of a water film on the surface of the outer covering layer, so that a good frictional force is maintained between the sole and the ground.

[0017] Optionally, the outsole is a waterproof rubber sole.

[0018] By adopting the above technical solution, when people wear shoes and step on a wet ground, the accumulated water may enter between the outer covering layer and the outsole through the through structure grooves; the outsole made of waterproof rubber has a good waterproof effect, which can reduce the situation of accumulated water seeping into the outsole, midsole and even insole, which is beneficial to keep the sole body dry and enable people to maintain good comfort when wearing shoes.

[0019] Optionally, the outer covering layer is provided with a plurality of side cutting grooves, the side cutting grooves penetrate to the inner side surface of the outer covering layer, and the side cutting grooves are arranged at intervals along the side edge of the outer covering layer.

[0020] By adopting the above technical solution, the setting of the side cutting grooves can further enhance the ventilation effect between the outer covering layer and the outsole, and when the accumulated water enters between the outer covering layer and the outsole, the accumulated water can also be discharged from the side cutting grooves when people walk, so as to ensure the dryness of the sole body and the comfort of people when wearing shoes.

[0021] Optionally, the outer covering layer is made of tpu plastic material.

[0022] By adopting the above technical solution, the outer covering layer made of tpu plastic material has good toughness and is not prone to local cracking. At the same time, it also has the characteristics of oil resistance and dirt resistance, which is beneficial to keep the sole in good cleanliness.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By arranging the outer covering layer to cover the outer side surface of the sole body and the surface of the outsole, the influence of the external environment on the glue inside the bonding gap can be weakened, and the bonding layer on the inner side of the outer covering layer can be combined with the glue in the bonding gap, which can reduce the situation of cracking of the bonding gap between the layers of materials;

[0025] 2. By arranging the extension part and sewing and fixing it with the side surface of the shoe upper, the situation of the outer covering layer and the sole body being separated from each other can be reduced under the double connection method, so that the anti-cracking sole has a good service life;

[0026] 3. By providing a through groove that penetrates to the inner side of the outer covering layer, since the outer covering layer can move freely between the outer covering layer and the bottom surface, relative movement can occur between the outer covering layer and the sole when people walk, forming a breathing ventilation effect, which is beneficial to improving the breathability of the anti-cracking sole and reducing the growth of bacteria. Description of the Drawings

[0027] Figure 1 is a cross-sectional view of the overall structure of this embodiment;

[0028] Figure 2 is a schematic structural view of the surface of the outer covering layer in this embodiment.

[0029] Description of the reference numerals: 1, sole body; 11, insole; 12, midsole; 13, outsole; 14, bonding gap; 2, outer covering layer; 21, extension part; 22, sewing groove; 3, bonding layer; 4, anti-slip unit; 5, hexagonal pattern; 6, structure groove; 61, structure segment; 7, preset hole; 8, side cutting groove. Detailed Description of the Embodiment

[0030] The following will Figure 1-2 further describe the present application in detail.

[0031] The embodiment of the present application discloses an anti-cracking sole.

[0032] Referring to Figure 1 , an anti-cracking sole includes a sole body 1 and an outer covering layer 2; wherein, the sole body 1 includes an insole 11, a midsole 12 and an outsole 13. The insole 11 and the midsole 12 are cold-bonded together with glue, and a bonding gap 14 is formed between the insole 11 and the midsole 12; the midsole 12 and the outsole 13 are cold-bonded together with glue, and a bonding gap 14 is also formed between the midsole 12 and the outsole 13. It should be noted that the materials of the insole 11 and the midsole 12 can be selectively set according to actual needs, and the outsole 13 is made of a waterproof rubber material to form a waterproof rubber sole, which can have good waterproof performance.

[0033] The outer covering layer 2 is made of a TPU plastic material, which can have good toughness and anti-cracking ability; the outer covering layer 2 covers the outer side of the sole body 1 and covers the surface of the outsole 13; the surface of the outsole 13 mentioned here is the side of the outsole 13 away from the midsole 12. The outer covering layer 2 and the side edge of the sole body 1 are bonded together with glue to form a bonding layer 3. The bonding layer 3 can be located outside the bonding gap 14 between the insole 11 and the midsole 12 and the bonding gap 14 between the midsole 12 and the outsole 13, so as to combine with the glue in each bonding gap 14, which can further improve the bonding strength and reduce the occurrence of cracking in the bonding gap 14 between the layers of materials.

[0034] The outer covering layer 2 has an integrally formed extension portion 21 that extends to the side of the insole 11 away from the outsole 13 and can be used for sewing and fixing to the side of the shoe upper. A plurality of sewing grooves 22 are provided on the outer peripheral side of the extension portion 21. The sewing grooves 22 are arranged in a strip shape, and all the sewing grooves 22 are spaced along the outer peripheral edge of the outer covering layer 2. The arrangement of the sewing grooves 22 can reduce the thickness of the local position of the extension portion 21, and thus can facilitate threading to sew and fix the outer covering layer 2 and the shoe upper, which is beneficial to improving the production efficiency of the shoes.

[0035] Referring to Figure 2 , a plurality of anti-slip units 4 are arranged on the surface of the outer covering layer 2. In this embodiment, the adjacent anti-slip units 4 are close to each other. Among them, the anti-slip unit 4 includes a hexagonal pattern 5, a structure groove 6, and a preset hole 7. The side edges of the hexagonal pattern 5 can be connected to the side edges of the hexagonal pattern 5 of the adjacent anti-slip unit 4. All the hexagonal patterns 5 together form a grid pattern arranged in an array, which can quickly disperse the accumulated water when people wear the shoes and step on a wet ground, reducing the situation of slipping.

[0036] The structure groove 6 is arranged inside the hexagonal pattern 5 and is used to provide a deformation space for the outer covering layer 2 to deform when it is stressed, reducing the occurrence of local cracking of the outer covering layer 2. The structure groove 6 includes three structure segments 61, and the three structure segments 61 are symmetrically arranged around the center point of the hexagonal pattern 5, and the local parts between the respective structure segments 61 are connected. Each structure segment 61 penetrates through to the inner side surface of the outer covering layer 2. Since the outer covering layer 2 is freely movable between the surface of the outsole 13, relative movement can occur between the outer covering layer 2 and the outsole 13 when people walk in the shoes, forming a breathing-like ventilation effect, which can improve the air permeability of the anti-cracking sole and reduce the breeding of bacteria.

[0037] A plurality of preset holes 7 are provided in a set of anti-slip units 4. Each of the preset holes 7 is arranged inside the hexagonal pattern 5 and is located at the corner position. The adjacent preset holes 7 in different anti-slip units 4 can jointly form an anti-slip structure, and the arrangement of the anti-slip structure can reduce the generation of a water film on the surface of the outer covering layer 2, so that a good friction force is maintained between the sole and the ground.

[0038] In addition, a plurality of side cutting grooves 8 are provided on the outer covering layer 2. Each side cutting groove 8 penetrates through to the inner side surface of the outer covering layer 2, and the side cutting grooves 8 are spaced along the side edge of the outer covering layer 2. The arrangement of the side cutting grooves 8 can further enhance the ventilation effect between the outer covering layer 2 and the outsole 13, and when the accumulated water enters between the outer covering layer 2 and the outsole 13, the accumulated water can also be discharged from the side cutting grooves 8 when people walk, so as to ensure the dryness of the sole body 1 and the comfort of people when wearing the shoes.

[0039] The implementation principle of an anti-cracking sole in an embodiment of this application is:

[0040] In this application, by providing an outer coating layer 2 to cover the outer side surface of the sole body 1 and the surface of the outsole 13, the influence of the external environment on the glue inside the bonding gap 14 can be weakened, and the bonding layer 3 on the inner side of the outer coating layer 2 can combine with the glue in the bonding gap 14, thereby reducing the occurrence of cracking in the bonding gap 14 between the layers of materials. Additionally, by providing an extension portion 21 and sewing and fixing it to the side of the shoe upper, the situation of the outer coating layer 2 and the sole body 1 separating from each other can be reduced under the double connection method, enabling the anti-cracking sole to maintain a good service life.

[0041] The above is the preferred embodiment of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An anti-cracking sole, characterized in that: The shoe comprises a sole body (1) and an outer covering layer (2), wherein the sole body (1) comprises an inner sole (11), a midsole (12) and an outsole (13) which are sequentially bonded from the inside to the outside, and bonding gaps (14) are provided between the inner sole (11) and the midsole (12), and between the midsole (12) and the outsole (13); the outer covering layer (2) covers the outer side surface of the sole body (1) and the surface of the outsole (13), and the outer covering layer (2) is bonded and fixed to the side edge of the sole body (1) via an adhesive layer (3); the outer covering layer (2) has an extension portion (21) extending to the side of the inner sole (11) away from the outsole (13), and the extension portion (21) is used for being sewn and fixed to the upper.

2. The anti-cracking sole according to claim 1, characterized in that: The extension portion (21) is provided with a plurality of seam grooves (22), and each of the seam grooves (22) is arranged at intervals along the outer peripheral edge of the outer covering layer (2).

3. The anti-cracking sole according to claim 1, characterized in that: A plurality of anti-slip units (4) are arranged on the surface of the outer coating layer (2), and adjacent anti-slip units (4) are close to each other; wherein the anti-slip units (4) comprise hexagonal patterns (5) and structural grooves (6), wherein the structural grooves (6) are located on the inner side of the hexagonal patterns (5), and the structural grooves (6) penetrate to the inner side surface of the outer coating layer (2).

4. The anti-cracking sole according to claim 3, characterized in that: The structural groove (6) comprises three structural segments (61) which are symmetrically arranged, and each of the structural segments (61) is partially connected to each other.

5. The anti-cracking sole according to claim 3, characterized in that: The anti-skid unit (4) further comprises a plurality of preset holes (7) arranged at the inner corner positions of the hexagonal pattern (5), and adjacent preset holes (7) together form an anti-skid structure for reducing the formation of water film.

6. The anti-cracking sole according to claim 3, characterized in that: The outsole (13) is a waterproof rubber sole.

7. The anti-cracking sole according to claim 1, characterized in that: The outer covering layer (2) is provided with a plurality of side cut grooves (8), the side cut grooves (8) penetrate to the inner side surface of the outer covering layer (2), and the side cut grooves (8) are arranged at intervals along the side edge of the outer covering layer (2).

8. The anti-cracking sole according to any one of claims 1 to 7, characterized in that: The outer coating layer (2) is made of TPU plastic material.

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