Elastic sole and shoe using same

Abstract

The sole body comprises the upper sole and the lower sole, and the front end and the rear end of the sole body are fixedly connected through glue, so that the elastic sole is stable and reliable. The middle parts of the upper sole and the lower sole are attached and contacted, so that during daily slow walking, the sole deforms gently according to the pressure of feet, the body weight is dispersed, and the foot muscle fatigue is relieved; and the running is rapid, the landing impact can be buffered, the joints are protected, and the endurance is enhanced. The variable cavities are formed at intervals in the middle, the vertical stress is like that of a buffering air bag, compression energy storage is achieved, and efficient shock absorption is achieved; during horizontal torsion, moderate dislocation is allowed, foot steering is matched, ankle sprain is prevented, and movement is smoother. The rubber elastic body is connected in the deformation cavity, the elasticity is super-strong, the deformation is fast under pressure, strong elastic force feedback is provided for jumping, standing and squatting actions, and the comfort degree is improved. Supporting protrusions and deformation grooves are arranged, the supporting protrusions assist in stabilizing the structure and guiding deformation, the deformation grooves facilitate stress deformation, the supporting protrusions and the deformation grooves are matched to adapt to complex road conditions, foot health is comprehensively protected, and the shoe performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoes, in particular to an elastic sole and shoes using the sole. Background Art

[0002] In today's footwear market, shoes, as essential items for daily wear, are typically composed of two basic parts: the sole and the upper. As the key part that comes into direct contact with the ground, the performance of the sole plays a crucial role in the overall wearing experience of the shoe.

[0003] With the accelerating pace of life and increasing awareness of foot health, the demand for functional shoe soles is becoming increasingly stringent. Traditional shoe soles tend to be relatively simple in terms of material selection and structural design, mostly using conventional materials such as rubber and plastic. While these materials have a certain degree of wear resistance and basic support, which can meet the basic needs of daily walking, they lack elasticity.

[0004] For example, when walking, running, or engaging in high-intensity exercise for extended periods, a shoe sole lacking elasticity cannot effectively cushion the impact of landing. This not only leads to a rapid accumulation of foot fatigue, causing plantar pain and joint damage, but can also affect the body's overall posture and increase the risk of injury. Furthermore, in work environments or sports that require frequent squatting and jumping, low-elasticity soles struggle to provide sufficient rebound support, further increasing the wearer's physical burden.

[0005] Furthermore, existing sole manufacturing processes mostly focus on cost control and mass production convenience, with relatively little investment in R&D and innovation, leaving room for improvement in the key issue of enhancing sole elasticity. In summary, developing a sole with excellent elasticity has become a technical challenge that the footwear industry urgently needs to overcome, with far-reaching implications for improving wearing comfort, protecting foot health, and expanding the application scenarios of footwear products. Summary of the Invention

[0006] In view of the problems pointed out in the background technology, the present invention proposes an elastic sole and shoes using the sole to solve the above technical problems.

[0007] The technical solution of the present utility model is achieved as follows:

[0008] An elastic sole comprises a sole body, wherein the sole body comprises an upper sole and a lower sole, and front and rear ends of the upper sole and the lower sole are fixedly connected to each other.

[0009] The utility model is further configured such that the lower side surface of the middle portion of the upper sole and the upper side surface of the middle portion of the lower sole are arranged in contact with each other.

[0010] The present invention is further configured such that the lower side surface of the middle portion of the upper sole and the upper side surface of the middle portion of the lower sole are spaced apart to form a deformation cavity.

[0011] The utility model is further configured such that an elastic body is connected to the deformation cavity.

[0012] The present invention is further configured such that a protruding supporting protrusion is provided on the lower side surface of the middle portion of the upper sole and / or the upper side surface of the middle portion of the lower sole.

[0013] The present invention is further configured such that a concave deformation groove is provided on the lower side surface of the middle portion of the upper sole and / or the upper side surface of the middle portion of the lower sole.

[0014] The utility model is further configured such that the elastic body is fixedly connected to the upper sole or the lower sole.

[0015] The utility model is further configured such that the front and rear ends of the upper sole and the lower sole are fixedly connected by glue.

[0016] The present invention is further configured such that the bottom of the lower sole is provided with a texture structure for increasing friction.

[0017] A shoe comprises the elastic sole, wherein the upper side of the upper sole is provided with a shoe upper.

[0018] By adopting the above technical solution, the beneficial effects of the utility model are:

[0019] The layered elastic design of the sole features fixed front and rear ends of the upper and lower soles (1) and (2), with a special structure in the middle forming an elastic core. For example, in implementation structure 1, the two soles touch each other in the middle. This design allows the sole to flexibly adjust to subtle changes in foot pressure during daily walking. When walking slowly, the sole gently deforms, evenly distributing body weight and reducing foot muscle fatigue. During fast running, the middle contact zone fully utilizes its elasticity to cushion the impact of landing, minimizing impact on joints, effectively preventing sports injuries, and providing endurance support for extended exercise.

[0020] In the second implementation, a deformation chamber 3 is formed in the middle, significantly expanding the sole's elastic space. When subjected to vertical force, the deformation chamber compresses and stores energy, acting like a built-in "cushion airbag" to effectively absorb impact. During horizontal twisting, the sole allows for moderate movement, accommodating the natural turning of the foot. This prevents ankle sprains caused by a stiff sole and promotes a smoother, more natural movement.

[0021] Further improvements, including Elastomer 4, offer even more significant advantages. This rubber elastomer boasts far greater elasticity than the sole itself, rapidly deforming under pressure and significantly enhancing cushioning. Whether landing from jumps or performing frequent squats, it provides the foot with stable and powerful spring feedback, enhancing wearer comfort.

[0022] The support protrusion 5 in implementation structure three works in perfect harmony with the deformation cavity 3. The protrusion helps disperse pressure, maintaining the stability of the sole structure. It also guides the deformation direction during lateral movement, ensuring a reasonable and orderly release of elasticity, allowing the sole to adapt to complex road conditions and changing movements, comprehensively protecting foot health and improving footwear performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 This is a structural diagram of the elastic sole implementation structure 1 of the utility model.

[0025] Figure 2 This is a cross-sectional view of the first embodiment of the elastic sole of the utility model.

[0026] Figure 3 This is a structural diagram of the second embodiment of the elastic sole of the utility model.

[0027] Figure 4 This is a schematic structural diagram of the third embodiment of the elastic sole of the utility model.

[0028] Figure 5 This is a cross-sectional view of the third embodiment of the elastic sole of the utility model.

[0029] Description of the reference numerals in the accompanying drawings: upper sole 1, lower sole 2, deformation cavity 3, elastic body 4, supporting protrusion 5, deformation groove 6. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference as follows Figure 1-5The utility model is described as follows:

[0032] Embodiment: Elastic Sole Implementation Structure 1: An elastic sole includes a sole body, which includes an upper sole 1 and a lower sole 2. The upper sole 1 and the lower sole 2 are fixedly connected at their front and rear ends. The lower side of the middle portion of the upper sole 1 and the upper side of the middle portion of the lower sole 2 are arranged in contact with each other.

[0033] The upper sole 1 and lower sole 2 are fixedly connected at their front and rear ends, ensuring a tight fit at these locations, forming a stable overall structure. This effectively maintains the basic stability of the sole's shape in the front-to-back direction, laying the foundation for subsequent functional implementation. Furthermore, the middle lower side of the upper sole 1 and the middle upper side of the lower sole 2 are in contact. This contact is not a completely rigid connection, but rather allows for a certain amount of relative movement.

[0034] An in-depth analysis of its working principle from the actual wearing and use process shows that when the user puts on the shoes and performs various activities such as walking, running, jumping, etc., the feet will exert forces of different directions and magnitudes on the soles. Since the front and rear ends of the upper sole 1 and the lower sole 2 are fixed and the middle part is relatively flexible, the separation structure in the middle of the sole can undergo significant deformation according to the force conditions. Specifically, in the vertical direction, the sole can produce different degrees of compression according to the pressure, cushioning the impact force from the ground; in the horizontal direction, when the foot produces lateral twisting and sliding movements, the separation structure in the middle allows a certain degree of dislocation movement. This unique combination of deformation and dislocation movement greatly expands the sole's ability to cope with complex external forces, significantly enhancing the overall elasticity of the sole, thereby providing the wearer with a better cushioning effect, effectively reducing the burden on the foot during exercise, and improving wearing comfort and exercise safety.

[0035] A further improvement to the first elastic sole structure is provided: a concave deformation groove 6 is provided on the lower side of the middle portion of the upper sole 1 and / or the upper side of the middle portion of the lower sole 2. The introduction of this deformation groove 6 provides a new opportunity for optimizing the mechanical properties of the sole. First, when the sole is subjected to pressure, the area where the deformation groove 6 is located becomes a stress concentration point. Due to the concave shape of the groove, the material in this area is weaker than the surrounding area, and it can be the first to deform in the early stages of stress. Taking vertical force as an example, when the wearer's foot applies vertical downward pressure during walking or exercise, the area of ​​the upper sole 1 and lower sole 2 in the middle of the sole that originally contacted each other can more efficiently conform to the direction of pressure and produce deformation such as bending and concaving due to the presence of the deformation groove 6. Compared with a case without a groove, the cushioning deformation capacity of the sole in the vertical direction is greatly improved, and the impact force from the ground can be more effectively absorbed, preventing the impact force from being directly transmitted to the foot.

[0036] Deformation grooves 6 also play a key role in horizontally responsive foot twisting and sliding. Under lateral force, the material surrounding the grooves, due to structural discontinuities, causes adjacent parts to shift relative to each other. This shift further expands the deformable range of the midsole, allowing the sole to better adapt to the foot's complex lateral movements and enhancing its overall flexibility and adaptability.

[0037] Furthermore, from the perspective of synergy between material mechanics and manufacturing processes, the addition of the deformation grooves 6 does not excessively increase the complexity and cost of sole manufacturing. Based on existing sole molding processes, the groove structures can be precisely formed at corresponding locations on the upper sole 1 and / or lower sole 2 simply by fine-tuning the mold design. Furthermore, this local structural optimization fully taps into the inherent elastic potential of the material, significantly improving the elasticity of the sole without changing the main material formula. This provides strong support for strengthening the product's market competitiveness and is expected to meet consumer demand for higher elasticity and a better wearing experience.

[0038] Elastic sole implementation structure 2: An elastic sole comprises a sole body, comprising an upper sole 1 and a lower sole 2, the front and rear ends of the upper and lower soles 1 and 2 being fixedly connected to each other. This stable front-to-rear connection ensures sufficient structural strength in the front-to-rear direction, enabling the sole to maintain basic morphological stability during daily walking, starting and braking, and effectively preventing undesirable conditions such as separation and misalignment of the front and rear portions of the sole, providing a reliable support foundation for the user.

[0039] The lower side of the middle part of the upper sole 1 and the upper side of the middle part of the lower sole 2 are spaced apart to form a deformation cavity 3. From the perspective of mechanical principles, when the wearer wears shoes equipped with this sole and engages in various activities, the deformation cavity 3 becomes a key area for the sole's elastic properties to be fully utilized. Under vertical force scenarios, such as the moment the foot touches the ground when walking and the push-off phase during running, the upward reaction force exerted by the ground on the sole will cause the upper sole 1 and lower sole 2 to move relatively close. At this time, the space in the deformation cavity 3 begins to compress, and the air inside the cavity is squeezed. The compressibility of the air provides a preliminary cushioning effect for the sole. At the same time, due to the presence of the deformation cavity 3, the materials of the upper sole 1 and lower sole 2 themselves can also produce moderate bending and stretching deformation under the action of pressure, further absorbing the impact force. Compared with traditional solid sole structures, this greatly enhances the vertical cushioning capacity and effectively reduces the instantaneous impact load on the foot.

[0040] Horizontally, the deformation chamber 3 also exhibits remarkable adaptability when the foot twists and slides laterally. The space created between the two allows for relative horizontal displacement between the upper and lower soles 1 and 2. This relative displacement allows the sole to flexibly adapt to the foot's lateral movements, preventing excessive rigidity from hindering natural foot movement. This in turn reduces additional strain on the foot's joints and muscles, comprehensively enhancing the sole's flexibility and elasticity. This provides the wearer with a more comfortable and safer wearing experience, meeting the stringent sole elasticity requirements for diverse sports and everyday walking.

[0041] The elastic sole implements a further improvement of the second structure: an elastic body 4 is connected to the deformation cavity 3. The elastic body 4 is fixedly connected to the upper sole 1 or the lower sole 2. The elastic body 4 is made of rubber and has a greater elastic deformation capacity than the upper sole 1 or the lower sole 2.

[0042] The introduction of elastomer 4 significantly improves the overall elastic performance of the sole. When the sole is subjected to force, whether in the vertical or horizontal direction, elastomer 4 plays a core buffering role. Under vertical force scenarios, such as when the foot touches the ground while walking or during the landing impact phase while running, the ground reaction force causes the upper sole 1 and the lower sole 2 to tend to approach each other. At this time, the elastomer 4 in the deformation cavity 3 is squeezed first. Since the elastomer 4 made of rubber material has excellent elastic deformation ability, it can absorb and disperse impact force more efficiently than the upper sole 1 and the lower sole 2. The flexible structure of the rubber molecular chain enables it to quickly undergo deformations such as stretching and twisting when under pressure, converting a large amount of impact energy into its own elastic potential energy and storing it. Compared with the case where elastomer 4 is not added, the vertical buffering performance of the sole is greatly enhanced, further reducing the instantaneous impact pressure on the foot, and effectively protecting the foot joints and bones.

[0043] Elastic body 4 also plays a crucial role in horizontal movements, such as lateral twisting and sliding. Because it's fixedly connected to the upper sole 1 or lower sole 2, under the action of horizontal forces, elastic body 4 stretches and bends with the relative displacement of the sole. Its superior elastic deformation properties allow the sole to deform more freely in the horizontal direction, ensuring it closely follows the foot's lateral movements. This prevents unnecessary strain and damage to the foot's muscles and joints caused by the rigidity of the sole, comprehensively enhancing the sole's ability to adapt to complex movements.

[0044] Elastic sole implementation structure three: An elastic sole includes a sole body, which includes an upper sole 1 and a lower sole 2. The upper sole 1 and the lower sole 2 are fixedly connected at their front and rear ends. The lower side of the middle portion of the upper sole 1 and the upper side of the middle portion of the lower sole 2 are spaced apart to form a deformation cavity 3.

[0045] Protruding support protrusions 5 are located on the lower side of the middle portion of the upper sole 1 and / or the upper side of the middle portion of the lower sole 2. These support protrusions 5 play multiple key roles in the sole's force-bearing system. Firstly, when the foot lands under vertical pressure, the support protrusions 5 first contact the lower sole 2 (if the protrusions are located on the lower side of the upper sole 1) or the upper sole 1 (if the protrusions are located on the upper side of the lower sole 2). Thanks to their protruding structural design, these protrusions disperse pressure to the surrounding areas, preventing excessive localized pressure concentration. This effectively reduces the risk of fatigue and damage to the sole material due to long-term concentrated stress, thereby extending the sole's service life. On the other hand, when subjected to horizontal force, such as lateral twisting or sliding of the foot, the supporting protrusion 5 acts as a "guiding and limiting" structure to constrain the relative displacement of the upper sole 1 and the lower sole 2, preventing excessive dislocation from causing instability of the sole structure. At the same time, due to its protruding shape, it helps the sole to follow the lateral movement trend of the foot to a certain extent, maintains the coordination between the sole and the foot movement, improves wearing comfort and sports safety, and fully meets the comprehensive needs of different sports states and daily walking for sole elasticity and stability.

[0046] The front and rear ends of the upper sole 1 and lower sole 2 are fixedly connected by glue. This connection method has significant advantages. The glue can tightly fit the two together, forming a seamless connection. Compared with other connection methods, such as simple snap connections, glue fixation provides more continuous and uniform adhesion. This ensures that the front and rear ends of the sole maintain high strength and integrity even when subjected to complex external forces, and will not easily loosen or separate. This effectively ensures the stability of the sole structure and provides a solid and reliable support foundation for every step the user takes.

[0047] The bottom of the lower sole 2 is provided with a texture structure for increasing friction.

[0048] A shoe comprises the elastic sole mentioned above, wherein the upper side of the upper sole 1 is provided with a shoe upper.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elastic sole, comprising a sole body, characterized in that: The sole body comprises an upper sole (1) and a lower sole (2), wherein the front and rear ends of the upper sole (1) and the lower sole (2) are fixedly connected to each other; the lower side surface of the middle part of the upper sole (1) and the upper side surface of the middle part of the lower sole (2) are arranged in contact with each other; and the lower side surface of the middle part of the upper sole (1) and / or the upper side surface of the middle part of the lower sole (2) are provided with an inwardly concave deformation groove (6).

2. The elastic sole according to claim 1, characterized in that: The lower side surface of the middle part of the upper sole (1) and the upper side surface of the middle part of the lower sole (2) are spaced apart to form a deformation cavity (3).

3. The elastic sole according to claim 2, characterized in that: An elastic body (4) is connected to the deformation cavity (3).

4. The elastic sole according to claim 2, characterized in that: A protruding support protrusion (5) is provided on the lower side surface of the middle part of the upper sole (1) and / or the upper side surface of the middle part of the lower sole (2).

5. The elastic sole according to claim 3, characterized in that: The elastic body (4) is fixedly connected to the upper sole (1) or the lower sole (2).

6. The elastic sole according to claim 1, characterized in that: The front and rear ends of the upper sole (1) and the lower sole (2) are fixedly connected by glue.

7. The elastic sole according to claim 1, characterized in that: The bottom of the lower sole (2) is provided with a texture structure for increasing friction.

8. A shoe, characterized in that: The elastic sole comprises the elastic sole according to any one of claims 1 to 7, wherein the upper side of the upper sole (1) is provided with a shoe upper.

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