Shoe sole with triple combination function

The outsole design, featuring a three-layer composite structure, combines high-elastic EVA foam, a central skeleton layer, and flexible EVA foam material. This design addresses the issues of insufficient comfort and stability in athletic shoes when not in motion, achieving a multi-functional effect of cushioning, support, and slip resistance, while protecting the knees and reducing tendon fatigue.

CN223627026UActive Publication Date: 2025-12-05JIANGXI BAIYING SPORTS TECH CO LTD
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Patent Information

Application Number
CN202520087588.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-05
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

Existing athletic shoes, when not in use, such as during daily commutes or long walks, focus too much on the performance of a single sport scenario, neglecting comfort and stability. This leads to fatigue and inflammation of the plantar fascia, affecting the normal flexion of the metatarsophalangeal joint and the normal flexion of the knee joint, thus causing knee injuries, easily leading to muscle fatigue and inflammation, and failing to protect the knee.

Method used

The outsole features a three-layer composite structure, consisting of an upper midsole, a central skeleton layer, and a lower outsole, made of high-elastic EVA foam, TPU, and flexible EVA foam respectively. Combined with features such as interlocking grooves, positioning grooves, and anti-slip plates, it provides cushioning, support, and anti-slip functions.

Benefits of technology

Provides comfort and stability during daily activities, reduces plantar fascia pressure, protects the knees, prevents tendon fatigue and inflammation, enhances torsional resistance, and provides good slip resistance.

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Abstract

A shoe sole with a triple-combination function structurally comprises a shoe sole body, and the shoe sole body is provided with an upper-layer outer sole, a lower-layer outer sole, an upper-layer outer sole, a lower-layer outer sole, a lower-layer outer sole, a lower-layer outer sole and a top-layer outer sole from top to bottom, the bottom of the upper-layer outer sole is provided with an embedding groove and a plurality of positioning grooves; the shape of the middle framework layer is matched with that of the embedding groove, and the middle framework layer is embedded in the embedding groove; the upper-layer insole comprises a half sole section, an arch section and a rear sole section, the lower-layer insole comprises a half sole section, an arch section and a rear sole section, hollowed-out holes are formed in the arch section in a penetrating mode, an anti-skid piece is arranged on the bottom face of the lower-layer insole, and the upper-layer insole has high rebound resilience, absorbs impact force generated when the upper-layer insole falls to the ground firstly, reduces damage to knee joints and protects the knees; the middle skeleton layer responds to the deformation of the foot and provides necessary propulsive force and stability for the foot, so that the half sole movement returns to nature; the lower-layer outsole adopts a wide and thick bottom surface, so that good stability performance is provided, and the supporting performance to ground stress is relieved; the bottom of the lower-layer outsole is provided with an anti-skidding area so as to prevent injury caused by skidding.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of triple composite function's shoe sole, belong to sports shoes field. BACKGROUND

[0002] Sports shoes, as a kind of shoes designed for sports scene, its technical iteration is in the pursuit of higher performance and more optimal experience. With the progress and development of society, consumers' requirements for sports shoes are no longer limited to basic protection and walking functions, but pay more attention to expanding functional applications in various sports scenes.

[0003] Current sports shoes with stability function are often too heavy due to the accumulation of shock-absorbing materials, or only add reinforced stability structure to provide additional support and anti-torsion performance for the sole. Although this material plays a role in anti-torsion and stability in sports shoes, it is not suitable for activities in commuting or jogging state, especially in daily commuting or long walking, because it focuses too much on the performance of a single sports scene, such as lightweight and elasticity when running, and ignores the comfort and stability of daily wear. And the high-rigidity support structure also provides strong support to the foot bottom, which can increase the pressure on the plantar fascia, causing the plantar fascia to be in a state of continuous tension for a long time, easily causing tendon fatigue and inflammation, and even affecting the normal bending of metatarsophalangeal joints. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a triple composite function's shoe sole, to solve the problem that the existing sports shoes are not suitable for activities in non-sports state, especially in daily commuting or long walking, because it focuses too much on the performance of a single sports scene, such as lightweight and elasticity when running, and ignores the comfort and stability of daily wear. And the high-rigidity support structure also provides strong support to the foot bottom, which can increase the pressure on the plantar fascia, causing the plantar fascia to be in a state of continuous tension for a long time, easily causing tendon fatigue and inflammation, and even affecting the normal bending of metatarsophalangeal joints.

[0005] To achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a triple composite function's shoe sole, its structure includes shoe sole body, the shoe sole body is provided with upper layer midsole, middle skeleton layer, lower layer outsole from top to bottom;

[0006] Upper layer midsole, located in the uppermost layer of the shoe sole body, a plurality of positioning grooves are provided in the bottom of the embedding groove, and a limiting block is arranged on both sides of the embedding groove;

[0007] Middle skeleton layer, between upper layer midsole and lower layer outsole, the middle skeleton layer is matched with the shape of embedding groove, and the middle skeleton layer is embedded in the embedding groove;

[0008] The lower outer sole is located at the lowermost layer of the sole body, and comprises a forefoot section, an arch section and a rearfoot section, the arch section is provided with a hollow hole, and the lower outer sole bottom surface is provided with a non-slip piece;

[0009] The forefoot section is in an arc shape and is concave inward, and the end thereof away from the arch section extends upward and is raised to form a receiving cavity in the forefoot section, the receiving cavity corresponds to the forefoot part of the foot bottom, and the front section of the upper midsole is inserted into the receiving cavity after the upper midsole is embedded with the middle skeleton layer.

[0010] Further, the upper end of the upper midsole is provided with a protruding part on both sides, and the outer surface of the protruding part on at least one side is sprayed with a dark colored glue layer.

[0011] Further, the middle skeleton layer is provided with a first support plate and a second support plate from front to back, the first support plate extends along the length direction of the end away from the second support plate, is raised and concave in the middle to form an arc shape, the second support plate is provided with a plurality of limiting openings and protruding parts, and the protruding part is exposed by the positioning groove.

[0012] Further, the limiting opening is matched with the limiting block.

[0013] Further, the lower outer sole bottom is provided with a forefoot non-slip groove and a rearfoot non-slip groove, and is matched with the non-slip piece.

[0014] Further, the forefoot non-slip groove is provided with a limiting protrusion, the limiting protrusion is provided with a non-slip line, and the limiting protrusion is in one of a V-shaped or U-shaped type.

[0015] Further, the end of the lower outer sole away from the arch section is provided with a positioning opening.

[0016] Further, the non-slip piece comprises a forefoot non-slip piece and a rearfoot non-slip piece, and the forefoot non-slip piece extends in the vertical direction on the side close to the toe of the human body and forms an extension part.

[0017] Further, the extension part is matched with the front end of the positioning opening in the vertical direction.

[0018] Further, the material of the upper midsole is high-elastic foamed EVA, the material of the middle skeleton layer is TPU, and the material of the lower outer sole is flexible foamed EVA.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The upper midsole first contacts the impact force brought by the foot bottom, the high-elastic performance helps to absorb the impact force when landing, reduces the damage to the knee joint, and protects the knee.

[0021] 2. The middle skeleton layer can respond to the deformation of the foot, especially in the forefoot part, the first support plate and the second support plate of the forefoot part provide necessary propulsion and stability, so that the forefoot movement returns to nature;

[0022] 3. The lower layer of the outsole adopts a wide and thick bottom surface to provide good left-right stability, and the light and flexible foamed EVA material relieves the stress on the ground while providing good support to reduce the situation of excessive pronation or insufficient pronation of the foot;

[0023] 4. The lower layer of the outsole is provided with an anti-skid area to ensure good anti-skid performance on some wet and slippery sections and prevent injury. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the shoe sole with three composite functions of the present application;

[0026] Figure 2 It is a schematic diagram of the layered structure of the shoe sole with three composite functions of the present application;

[0027] Figure 3 It is a bottom view of the upper layer of the midsole;

[0028] Figure 4 It is a bottom view of the lower layer of the outsole;

[0029] Figure 5 It is a side view of the upper layer of the midsole;

[0030] Figure 6 It is a schematic diagram of the middle skeleton layer structure;

[0031] Figure 7 It is a top view of the lower layer of the outsole;

[0032] Figure 8 It is a top view of the anti-skid sheet;

[0033] Figure 9 It is a bottom view of the upper layer of the outsole of Example 2;

[0034] Explanation of reference numerals: 1, sole body; 2, upper midsole; 21, fitting groove; 22, positioning groove; 23, side protruding part; 211, limiting block; 3, middle skeleton layer; 321, limiting opening; 322, protruding part; 4, lower outer sole; 41, forefoot segment; 42, arch segment; 43, rearfoot segment; 44, anti-skid sheet; 45, forefoot anti-skid groove; 46, rearfoot anti-skid groove; 401, hollow hole; 411, accommodating cavity; 412, positioning opening; 441, forefoot anti-skid sheet; 442, rearfoot anti-skid sheet; 443, extension; 451, limiting protrusion; 4511, anti-skid line. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0036] [Three-repeated composite function sole according to the utility model]

[0037] Embodiment 1

[0038] Please refer to Figure 1 , Figure 2 , Figure 3 The utility model provides a three-repeated composite function sole technical scheme: a three-repeated composite function sole, which comprises a sole body 1, wherein the sole body 1 is provided with an upper midsole 2, a middle skeleton layer 3 and a lower outer sole 4 from top to bottom;

[0039] The upper midsole 2 is located at the uppermost layer of the sole body 1, and the bottom of the upper midsole 2 is provided with a fitting groove 21 and a plurality of positioning grooves 22; the two sides of the fitting groove 21 are provided with limiting blocks 211;

[0040] The middle skeleton layer 3 is arranged between the upper midsole 2 and the lower outer sole 3, the middle skeleton layer 3 is matched with the fitting groove 21 in shape, and the middle skeleton layer 3 is embedded in the fitting groove 21;

[0041] The lower outer sole 4 is located at the lowermost layer of the sole body 1, and the lower outer sole 4 comprises a forefoot segment 41, an arch segment 42 and a rearfoot segment 43; the arch segment 42 is provided with a hollow hole 401; and the bottom surface of the lower outer sole 4 is provided with an anti-skid sheet 44;

[0042] The front palm section 41 is concave and extends upward from one end of the arch section 42 to form a receiving cavity 411, which corresponds to the front part of the sole, and the front section of the upper midsole 2 is embedded in the receiving cavity 411 after the upper midsole 2 is combined with the mid-embedded skeleton layer 3, so that the mid-embedded skeleton layer 3 is embedded in the upper midsole 2 to form a shoe midsole combination with the functions of buffering, toughness, elasticity and lightness, and the addition of the mid-embedded skeleton layer 3 can reduce the deformation and wear of the midsole material under high intensity use, prolong the service life of the shoe, prevent the shoe from being easily twisted and bent, enhance the anti-twist performance of the shoe, and protect the foot from injury.

[0043] Referring to Figure 5 , in order to enrich the appearance of the shoe sole, the upper midsole 2 is provided with a side protrusion 23 on each side of the front end, and the outer surface of at least one side protrusion 23 is sprayed with a dark colored glue layer.

[0044] Referring to Figure 6 , in order to provide a structure with a pushing force for the sole, the mid-embedded skeleton layer 3 is provided with a first support plate 31 and a second support plate 32 from front to back, the first support plate 31 extends upward along the length direction of one end away from the second support plate 32 and is concave in the middle to form an arc shape, the second support plate 32 is provided with a plurality of limiting openings 321 and protrusions 322, the positioning groove 22 exposes the protrusions 322, for daily jogging, the first support plate 31 and the second support plate 32 can provide the instantaneous support and front pushing force required for exercise, so that the pace is more stable, the risk of ankle sprain caused by uneven ground is reduced, and additional propulsion is provided when running.

[0045] In order to ensure that the mid-embedded skeleton layer 3 is stable and does not shift, the limiting openings 321 are matched with the limiting blocks 211.

[0046] Referring to Figure 4 , in order to make the shoe sole have a strong anti-skid function, the lower outer sole 4 is provided with a front palm anti-skid groove 45 and a rear palm anti-skid groove 46, which are matched with the anti-skid pieces 44.

[0047] Referring to Figure 4 , in order to make the mid-embedded skeleton layer 3 have a more stable positioning mode, the front palm anti-skid groove 45 is provided with a limiting protrusion 451, the limiting protrusion 451 is provided with anti-skid lines 4511, and the limiting protrusion 451 is in the shape of a U.

[0048] Referring to Figure 7 , Figure 8In order to make the anti-skid piece 44 adhere to the sole, the lower layer outsole 4 is provided with a positioning opening 412 away from one end of the arch segment 42, the anti-skid piece 44 comprises a forefoot anti-skid piece 441 and a hindfoot anti-skid piece 442, the forefoot anti-skid piece 441 extends to the vertical direction on the side close to the human toe and forms an extension 443, and the extension 443 adheres to the front end of the positioning opening 412 along the vertical direction.

[0049] In order to make the sole have multifunctionality, the upper layer midsole 2 is made of high-elastic foamed EVA, the middle skeleton layer 3 is made of TPU, and the lower layer outsole 4 is made of flexible foamed EVA; when commuting daily, the soft and high-elastic characteristics of the upper and lower layer foamed EVA materials can provide excellent shock absorption effect, absorb the impact force when landing, reduce the damage to the knee joint, and protect the runner's feet and legs.

[0050] Embodiment 2

[0051] Please refer to Figure 1 、 Figure 2 , Figure 3 The utility model provides a kind of triple composite function's sole technical scheme: a kind of triple composite function's sole, its structure includes shoe sole body 1, the shoe sole body 1 is provided with upper layer midsole 2, middle skeleton layer 3, lower layer outsole 4 from top to bottom;

[0052] Upper layer midsole 2, located the shoe sole body 1 uppermost layer, its bottom is provided with embedding groove 21 and a plurality of positioning groove 22, embedding groove 21 side is provided with limit block 211;

[0053] Middle skeleton layer 3, be between upper layer midsole 2 and lower layer outsole 3, the middle skeleton layer 3 is compatible with embedding groove 21 shape, the middle skeleton layer 3 is embedded in embedding groove 21;

[0054] Lower layer outsole 4, located the shoe sole body 1 lowermost layer, the lower layer outsole 4 includes forefoot segment 41, arch segment 42, hindfoot segment 43, the arch segment 42 is provided with hollow hole 401, and the lower layer outsole 4 bottom is provided with anti-skid piece 44;

[0055] Wherein, the forefoot segment 41 is concave arc shape, and the end away from the arch segment 42 extends upward and is raised in the forefoot segment 41 to form a containing cavity 411, the containing cavity 411 corresponds the forefoot part of foot bottom, after the upper layer midsole 2 and the middle skeleton layer 3 are embedded, the front section of the upper layer midsole 2 is inserted into containing cavity 411, and the middle skeleton layer 3 is embedded in the upper layer midsole 2 to form a shoe midsole combination with the functions of buffering, toughness and elasticity and light weight, the addition of the middle skeleton layer 3 can reduce the deformation and wear of midsole material under high strength use, prolong the service life of the shoe, simultaneously make the shoe not easy to distort and substantially bend, enhance the anti-torsion performance of the shoe, and protect the foot from injury.

[0056] Referring to Figure 5 , in order to enrich the beauty of the sole, the upper midsole 2 is provided with a side protrusion 23 on both sides of the front end, and at least one side of the side protrusion 23 is sprayed with a dark colored glue layer on the outer surface.

[0057] Referring to Figure 6 , in order to provide a propulsive structure for the foot bottom, the middle skeleton layer 3 is provided with a first support plate 31 and a second support plate 32 from front to back, the first support plate 31 extends and rises along the length direction away from one end of the second support plate 32 and is concave in the middle to form an arc, the second support plate 32 is provided with a plurality of limiting openings 321 and protruding parts 322, the positioning groove 22 exposes the protruding part 322, for daily jogging, the first support plate 31 and the second support plate 32 can provide the required instantaneous support and forward thrust during exercise, making the pace more stable, reducing the risk of ankle sprain caused by uneven ground, while providing additional propulsion during running.

[0058] In order to ensure that the middle skeleton layer 3 is stable and does not shift, the limiting opening 321 is matched with the limiting block 211.

[0059] Referring to Figure 4 , in order to make the sole have strong anti-skid function, the lower outer sole 4 is provided with a forefoot anti-skid groove 45 and a rearfoot anti-skid groove 46, which are matched with the anti-skid sheet 44.

[0060] Referring to Figure 4 , in order to make the middle skeleton layer 3 have a more secure positioning method, the forefoot anti-skid groove 45 is provided with a limiting protrusion 451, the limiting protrusion 451 is provided with anti-skid lines 4511, and the limiting protrusion 451 is in V shape.

[0061] Referring to Figure 7 , Figure 8 , in order to make the anti-skid sheet 44 fit the sole, the lower outer sole 4 is provided with a positioning opening 412 away from the arch segment 42, the anti-skid sheet 44 includes a forefoot anti-skid sheet 441 and a rearfoot anti-skid sheet 442, the forefoot anti-skid sheet 441 extends in the vertical direction on the side close to the human toe and forms an extension 443, and the extension 443 fits the front end of the positioning opening 412 in the vertical direction.

[0062] In order to make the sole have multifunctionality, the upper midsole 2 is made of high-elastic foaming EVA, the middle skeleton layer 3 is made of TPU, and the lower outer sole 4 is made of flexible foaming EVA, which can provide excellent shock absorption effect, absorb the impact force when landing, reduce the damage to the knee joint, and protect the runner's feet and legs during daily commuting.

[0063] In use, the middle skeleton layer 3 is embedded into the embedding groove 21 in the upper layer midsole 2, and after embedding is completed, the front section is inserted into the containing cavity 41, when people commute or jog, the upper layer midsole 2 first contacts the impact force brought by the foot, and the high rebound performance helps to absorb the impact force when landing, reduces the damage to the knee joint, and protects the knee; then it is conducted to the middle skeleton layer 2, which can respond to the deformation of the foot, especially in the forefoot part, the first support plate 31 and the second support plate 32 of the forefoot part provide necessary propulsion and stability, so that the forefoot movement returns to nature; finally, it is conducted to the lower layer outsole 4, which adopts a wide and thick bottom surface to provide good left and right stability, and the light and flexible foamed EVA material relieves the stress on the ground, and the arch segment 42 provides good support for people to reduce the condition of excessive pronation or pronation deficiency, in addition, the lower layer outsole 4 is provided with an anti-skid area 44, so as to ensure that it also has good anti-skid performance on some wet and slippery road sections, and prevent injury.

[0064] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0065] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A triple composite function sole, characterized by: The structure comprises a sole body (1), which is provided with an upper midsole (2), a middle skeleton layer (3) and a lower outsole (4) from top to bottom; The upper midsole (2) is located at the uppermost layer of the sole body (1) and is provided with an embedded groove (21) and a plurality of positioning grooves (22) at the bottom, and the embedded groove (21) is provided with a limiting block (211) at both sides; The middle skeleton layer (3) is arranged between the upper midsole (2) and the lower outsole (4), the shape of the middle skeleton layer (3) is matched with the embedded groove (21), and the middle skeleton layer (3) is embedded in the embedded groove (21); The lower outsole (4) is located at the lowermost layer of the sole body (1), the lower outsole (4) comprises a forefoot segment (41), an arch segment (42) and a rearfoot segment (43), the arch segment (42) is provided with a hollow hole (401), and the bottom surface of the lower outsole (4) is provided with an anti-skid piece (44); The forefoot segment (41) is in an arc shape and is concave inward, one end of the forefoot segment (41) away from the arch segment (42) extends upward and is raised to form a containing cavity (411) in the forefoot segment (41), the containing cavity (411) corresponds to the forefoot part of the sole, and the front segment of the upper midsole (2) is arranged in the containing cavity (411) after the upper midsole (2) and the middle skeleton layer (3) are embedded.

2. The tri-composite functional sole according to claim 1, wherein: The upper midsole (2) is provided with a side protrusion (23) at both sides of the front end, and the outer surface of at least one side of the side protrusion (23) is sprayed with a dark colored glue layer.

3. The tri-composite functional sole according to claim 1, wherein: The middle skeleton layer (3) is provided with a first support plate (31) and a second support plate (32) from front to back, the first support plate (31) extends and is raised along the length direction of one end away from the second support plate (32) and is concave in the middle to form an arc shape, the second support plate (32) is provided with a plurality of limiting openings (321) and protrusions (322), and the positioning groove (22) is arranged on the surface of the protrusion (322).

4. The tri-composite functional sole according to claim 3, wherein: The limiting opening (321) is embedded with the limiting block (211).

5. The tri-composite functional sole according to claim 1, wherein: The bottom of the lower outsole (4) is provided with a forefoot anti-skid groove (45) and a rearfoot anti-skid groove (46) and is matched with the anti-skid piece (44).

6. The tri-composite functional sole according to claim 5, wherein: The forefoot anti-skid groove (45) is provided with a limiting protrusion (451), the limiting protrusion (451) is provided with anti-skid lines (4511), and the limiting protrusion (451) is in one of a V shape and a U shape.

7. The tri-composite functional sole according to claim 1, wherein: The lower outsole (4) is provided with a positioning opening (412) at one end away from the arch segment (42).

8. The tri-composite functional sole according to claim 1, wherein: The anti-skid piece (44) comprises a forefoot anti-skid piece (441) and a rearfoot anti-skid piece (442), the forefoot anti-skid piece (441) extends in a vertical direction on one side close to the toe of the human body and forms an extension (443).

9. The tri-composite functional sole according to claim 8, wherein: The extension (443) is attached to the front end of the positioning opening (412) in the vertical direction.

10. The tri-composite functional sole according to claim 1, wherein: The material of the upper midsole (2) is high-elastic foaming EVA, the material of the middle skeleton layer (3) is TPU, and the material of the lower outsole (4) is flexible foaming EVA.