Cushioning sole and shoe

Abstract

The utility model discloses a cushioning sole which comprises a first elastic layer and a second elastic layer, the first elastic layer is arranged above the second elastic layer, a plurality of cushioning units of spherical structures are formed on the second elastic layer, the cushioning units are arranged in a linear distribution mode, spherical crowns are formed on the cushioning units, and the spherical crowns can generate elastic deformation when making contact with the ground. According to the cushioning sole, the elastic cushioning unit is arranged on the bottom face of the second elastic layer and serves as an outer sole structure to be in direct contact with the ground, the cushioning structure provides non-slip wear resistance, and deformation of materials is fully utilized to improve the damping effect of the second elastic layer, so that the shock absorption effect of the second elastic layer is improved, and the service life of the second elastic layer is prolonged. The cushioning units are arranged in a linear array mode, impact force can be dispersed and absorbed more effectively in a linear form, meanwhile, better energy feedback is provided for athletes, the foot soles are helped to more effectively utilize ground counter-acting force, and the running efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shoe field especially relates to a kind of shock-absorbing shoe sole and the shoe containing the shoe sole. BACKGROUND

[0002] For sports shoes, shock-absorbing performance is its basic performance, is one of the standards to measure sports shoes, and the shock-absorbing performance is through the outsole material of sports shoes with certain shock-absorbing performance to buffer and transfer the force of human body to the ground and the reaction force of the ground to the human body, to produce an energy circulation system, thereby reducing the impact of reaction force on human body.

[0003] When a person is in a motion state, the activity of foot is in a cycle process, with metatarsophalangeal joint as fulcrum, heel is lifted, toe is touched to the ground, then foot is all lifted, at the same time, the heel of another foot is touched to the ground, gradually becomes that foot is all touched to the ground, and the ligament of calf is contracted to produce a power of calcaneus lifting, calcaneus part is power point, and talus part is gravity point. The gravity load of human body is on talus, and foot moves to vertical direction with metatarsophalangeal joint as fulcrum. It is this physical system that makes human body walk and move easily. When human body moves, foot bottom touches the ground, negative acceleration is generated in a very short time, and can reach 5 times of the huge reaction force of body weight. The vertical separation of these reaction forces is transmitted to human body in the form of impact through support surface, and produces vibration to foot joint, spine and brain, thereby causing a series of health problems.

[0004] The performance of midsole and outsole material of sports shoes directly affects the dispersion and buffering of impact force of shoes on human body, especially the material under the first metatarsal bone and the fifth metatarsal bone of calcaneus and forefoot part, which receives greater impact force.

[0005] The evaluation of shock-absorbing performance of sports shoes is mainly through international relevant standards to carry out drop hammer impact test on sample material. Impact hammer impacts material test piece from specified height freely, and the relationship between impact force and time is collected by pressure sensor during impact process, and is shown in the form of curve. The peak value of impact force is used to evaluate the advantages and disadvantages of shock-absorbing performance. The greater the peak value of impact force is, the greater the impact force on knee is, and the greater the impact on human body is, and the worse the shock-absorbing performance is. The parameters recorded at the same time also include time to reach peak value and maximum deformation in impact process.

[0006] At present, there are two ways to realize the shock absorption function of the shoe sole, one is material shock absorption, that is, using the compression deformation of material bubbles to absorb external impact energy, thereby reducing the damage to the knee and ankle; and the other is structural shock absorption, that is, using a special structure to deform under external force, increase the deformation amount, and prolong the impact force action time, so that the impact energy has been greatly attenuated when the impact wave is transmitted to the ankle and knee, thereby reducing the damage to the human body. In view of the fact that the current sports shoes are mainly realized by material shock absorption or structural shock absorption, there are two schemes at the same time, but they are all in the midsole area of the sports shoes, but the applicable space of the midsole area is limited, and the shock absorption effect cannot be fully realized. Practical new type content

[0007] The utility model discloses a kind of shock absorption shoe soles, by setting shock absorption unit on second elastic layer, with first elastic layer enough double-layer midsole structure, realize sufficient shock absorption and promote comfort. Specific technical solutions are as follows:

[0008] A kind of shock absorption shoe sole, including first elastic layer and second elastic layer, first elastic layer is set on second elastic layer, second elastic layer is formed with several spherical structure shock absorption units, shock absorption unit is set in linear distribution, shock absorption unit is formed with spherical crown, spherical crown is contacted with ground and can produce elastic deformation, to reduce the impact force that foot is subjected.

[0009] Further, the spherical crown includes a wave peak point, the height of the wave peak point is a first height, any two adjacent spherical crowns intersect at a wave valley point, the height of the wave valley point is a second height, the first height is greater than the second height, to form a continuous undulating curved surface on the second elastic layer.

[0010] Further, the second elastic layer includes a first region and a second region, the diameter of the shock absorption units in the first region is a first diameter, the diameter of the shock absorption units in the second region is a second diameter, the first diameter is greater than the second diameter.

[0011] Further, the first region corresponds to the first metatarsal bone, the fifth metatarsal bone and the calcaneus of the human body.

[0012] Further, the first elastic layer has a first hardness, and the second elastic layer has a second hardness, the second hardness is greater than the first hardness.

[0013] Further, the thickness of the second elastic layer is not less than 12mm.

[0014] Further, the diameter of the shock absorption units is 10mm to 30mm.

[0015] Further, the second elastic layer includes a heel region, and a hollow structure is arranged in the heel region.

[0016] Further, the hollow structure comprises a first region, one end of the first region is arranged through the heel region, and the other end is connected to a second region, the second region corresponds to a calcaneus of a human foot.

[0017] A shoe comprises the shoe sole described above.

[0018] The shock-absorbing shoe sole has the following advantages.

[0019] 1. The first elastic layer and the second elastic layer are arranged in a stack, the bottom surface of the second elastic layer is provided with the elastic buffer unit, the second elastic layer directly contacts the ground as an outsole structure, and the shock-absorbing structure provides the skid resistance and wear resistance and fully utilizes the deformation of the material to improve the shock-absorbing effect of the second elastic layer.

[0020] 2. The shock-absorbing unit gradually transmits the pressure to the spherical crown region around the vertex, maximizes the impact energy absorbed and dispersed in the region, and thus better absorbs and disperses the impact force, protecting the foot from injury.

[0021] 3. The spherical crown is arranged in a linear array, the shock-absorbing unit can more effectively disperse and absorb the impact force in a linear form, and provides better energy feedback for the athlete, helps the foot bottom more effectively utilize the ground reaction force, and improves the running efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an exploded view of the shock-absorbing shoe sole of the utility model.

[0023] Figure 2 is a side view of the shock-absorbing shoe sole of the utility model.

[0024] Figure 3 is a schematic view of the shock-absorbing unit in the shock-absorbing shoe sole of the utility model.

[0025] Figure 4 is a perspective view of the shock-absorbing shoe sole of the utility model. DETAILED DESCRIPTION

[0026] In order to better understand the purpose, structure and function of the utility model, the shock-absorbing shoe sole of the utility model is described in detail below in combination with the drawings.

[0027] As shown in Figure 1 , the shock-absorbing shoe sole comprises the first elastic layer and the second elastic layer arranged in a stack from top to bottom, the bottom surface of the second elastic layer is provided with the elastic buffer unit, and the first elastic layer and the second elastic layer have elasticity, which directly contacts the ground as an outsole structure in the prior art, the shock-absorbing structure provides the skid resistance and wear resistance, and fully utilizes the deformation of the material to improve the shock-absorbing effect of the second elastic layer.

[0028] Specifically, the shock absorption units are spherical structures, the spherical structures are arranged in an array, and a second elastic layer with a wave crest and wave trough high-low undulation bottom form is formed. If the diameters of the spherical structures are different, the stress distribution of the buffer area in contact with the ground at different times is different, the stress size of the stress concentration area is no longer uniformly distributed, but is different according to the distribution of the spherical structures, the spherical crown area of the spherical particles bears a larger stress, and the wave trough area intersected by different particles bears a smaller stress. The spherical crown area of the protrusion is directly in contact with the ground, the stress is concentrated in the spherical crown area, so that the stress of the area is larger, and at the same time, larger deformation and impact deformation time can be generated, which can reduce the reaction force on the knee during running impact, reduce sports injuries and the like.

[0029] In order to better understand the purpose, structure and function of the utility model, the shock absorption sole and the shoe containing the sole will be further described in detail below with reference to the specific structure of the shock absorption sole and the accompanying drawings.

[0030] As shown in Figures 1 to 4 , the shock absorption sole of the utility model comprises a first elastic layer 10 with elasticity and a second elastic layer 20 with elasticity, the first elastic layer 10 corresponds to the bottom of the human foot, the first elastic layer 10 is oppositely arranged above the second elastic layer 20, a plurality of shock absorption units 30 are formed on the second elastic layer 20, the shock absorption units 30 can produce elastic deformation, and the shock absorption units 30 are elastically compressed after being directly in contact with the ground, so that the effect of reducing the impact force received by the foot is realized.

[0031] Specifically, as shown in Figure 3 , the shock absorption unit 30 is a protruding spherical structure, a curved spherical crown is formed on the spherical structure, and the top point of the spherical crown is in contact with the ground. Since the spherical structure usually has a high shock absorption limit, the impact energy absorbed and dispersed by the area where the shock absorption unit 30 is located can be maximized by gradually transmitting the pressure to the spherical crown area around the top point, so that the impact force can be better absorbed and dispersed, and the foot can be protected from injury.

[0032] In addition, through the unique spherical structure design, the sole can provide stable support and enhance the stability during exercise. The spherical structure shock absorption makes the sole usually have a soft and elastic foot feeling, which can bring a unique comfortable experience to the wearer, like stepping on a rubber ball. At the same time, the spherical structure can quickly recover to its original state after being subjected to pressure, providing good rebound performance, which helps to improve sports performance.

[0033] Further, the spherical caps are arranged in a linear distribution, i.e., the cushioning units 30 are arranged in a linear array, the spherical caps include peak points, the height of the peak points is a first height, any two adjacent spherical caps intersect at a valley point, the height of the valley point is a second height, the first height is greater than the second height, thereby forming a continuous undulating curved surface on the second elastic layer 20, and the bottom of the second elastic layer 20 presents a wave peak and wave valley undulating form. The purpose of setting this structure is that, by arranging the spherical caps in a linear array, the cushioning units 30 can more effectively disperse and absorb impact force in a linear form, and at the same time provide better energy feedback to the athlete, helping the foot bottom to more effectively utilize the ground reaction force and improve running efficiency. In addition, the linear array of the cushioning units 30 provides uniform support for the sole, which helps to prevent tilting and sliding, especially when performing rapid changes of direction or sudden stops and the like.

[0034] The spherical structure can use particles with the same diameter, or different diameters of spherical particles can be used in different areas according to the stress characteristics. Preferably, the diameter of the spherical structure is 10-30 mm. The spherical cushioning structure in this diameter range is neither too soft nor too hard, and can adapt to various sports scenarios. The spherical structure with this diameter helps to optimize the weight distribution of the shoe, making the shoe more lightweight and easy to wear.

[0035] Further, the second elastic layer includes a first area and a second area, the first area corresponds to the first metatarsal bone, the fifth metatarsal bone and the calcaneus area where the human foot is subjected to greater stress, and the second area is the area other than the first area. The diameter of the cushioning unit in the first area is a first diameter, and the diameter of the cushioning unit in the second area is a second diameter, the first diameter is greater than the second diameter. Since the cushioning unit in the first area with a larger diameter has a larger spherical cap area, the larger the spherical cap area, the greater the stress, so that the area near the valley point where the cushioning units intersect in the first area is subjected to less stress. That is, the protruding spherical cap area directly contacts the ground, and the stress is concentrated in the spherical cap area, so the area is subjected to greater stress and also produces greater deformation. Large deformation and impact deformation time will reduce the reaction force on the knee during running impact, reduce sports injuries, etc.

[0036] Further, the first elastic layer 10 has a first hardness, and the second elastic layer 20 has a second hardness, the second hardness being greater than the first hardness, that is, the hardness of the second elastic layer 20 in contact with the ground is higher than the hardness of the first elastic layer 10 in contact with the human foot, the harder second elastic layer 20 can reduce the impact on the foot during movement, thereby protecting the joints and ligaments of the foot, which is particularly important for people who often need to perform high-intensity exercise or stand for a long time, the harder second elastic layer 20 can enhance the structural strength of the shoe and provide better support for the wearer's foot, in addition, the second elastic layer 20 has a higher hardness and is made of a material with higher wear resistance, which can better resist the wear and friction of the ground, which makes the shoe sole still maintain good condition after long-term use, prolonging the service life.

[0037] Preferably, the material of the second elastic layer 20 is foamed rubber, the hollow structure of the foamed rubber has good cushioning performance, which can effectively reduce the impact of the ground on the foot and protect the foot from injury, at the same time, the foamed rubber sole has a smaller density and a lighter weight, and is soft and comfortable, making the wearer feel more relaxed and comfortable. In addition, the foamed rubber as the material of the second elastic layer 20 can be specially treated on the surface to increase the friction and wear resistance, and has high anti-skid and wear-resistant performance.

[0038] Further, the second elastic layer 20 has a large thickness, the thickness is not less than 12mm, and in the embodiment, the thickness is preferably 12mm, which can provide sufficient cushioning effect and help to reduce the impact of the ground on the foot during running, thereby reducing the risk of injury, especially for runners who land on their heels first or have insufficient internal rotation, the midsole with this thickness can provide additional support and cushioning, and the shoe with a thicker second elastic layer 20 can provide better stability, especially during high-speed running or turning, the 12mm thickness of the second elastic layer 20 can ensure that the shoe remains stable during running, reducing the risk of foot sprain caused by a too-soft midsole.

[0039] As shown in Figure 1 The second elastic layer 20 includes a heel region, and the heel region is provided with a hollow structure 21 to increase the deformation amount of the heel region and provide more deformation space for the heel, the hollow structure 21 can better absorb and disperse the force when the sole is impacted, thereby reducing the impact on the heel and protecting the joints and feet, thereby improving the cushioning and shock-absorbing performance.

[0040] Specifically, the hollow structure 21 includes a strip-shaped first region 22, one end of which extends through the heel area, and the other end connects to a circular second region 23. The second region 23 corresponds to the calcaneus (heel bone) of the human foot. This hollow structure 21 can more effectively absorb and disperse the impact force of the ground on the heel. The rearward-extending hollow structure 21 increases the deformation space of the sole material, thereby improving the cushioning effect. In addition, the hollow structure 21 can reduce the weight of the sole material while maintaining sufficient cushioning and support performance, making the shoe lighter.

[0041] This utility model also provides a shoe, including the sole described above.

[0042] The terms “above,” “below,” and “within” as used above include the number itself; the terms “exceeding” and “excluding” do not include the number itself.

[0043] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0044] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

Claims

1. A cushioning shoe sole, characterized by The shoe sole comprises a first elastic layer and a second elastic layer, the first elastic layer is arranged above the second elastic layer, the second elastic layer is formed with a plurality of spherical structure shock absorption units, the shock absorption units are arranged in linear distribution, the shock absorption units are formed with spherical caps, the spherical caps are in contact with the ground to produce elastic deformation to reduce the impact force received by the foot.

2. The cushioning sole of claim 1, wherein, The spherical cap comprises a wave crest point, the height of the wave crest point is a first height, any two adjacent spherical caps intersect at a wave trough point, the height of the wave trough point is a second height, the first height is greater than the second height, and a continuous undulating curved surface is formed on the second elastic layer.

3. The cushioning sole of claim 2, wherein, The second elastic layer comprises a first region and a second region, the diameter of the shock absorption units in the first region is a first diameter, the diameter of the shock absorption units in the second region is a second diameter, the first diameter is greater than the second diameter.

4. The cushioning sole of claim 3, wherein, The first region corresponds to the first metatarsal bone, the fifth metatarsal bone and the calcaneus of the human body.

5. The cushioning sole of any one of claims 1 to 4, wherein, The first elastic layer has a first hardness, and the second elastic layer has a second hardness, the second hardness being greater than the first hardness.

6. The cushioning sole of any one of claims 1 to 4, wherein, The thickness of the second elastic layer is not less than 12 mm.

7. The cushioning sole of any of claims 1 to 4, wherein, The diameter of the shock absorption units is 10 mm to 30 mm.

8. The cushioning sole of any one of claims 1 to 4, wherein, The second elastic layer comprises a heel region, and the hollow structure is arranged in the heel region.

9. The cushioning sole of claim 8, wherein, The hollow structure comprises a first region, one end of the first region penetrates through the heel region, and the other end is connected to a second region, and the second region corresponds to the calcaneus of the human foot.

10. A shoe characterized by The shoe sole comprises a first elastic layer and a second elastic layer, the first elastic layer is arranged above the second elastic layer, the second elastic layer is formed with a plurality of spherical structure shock absorption units, the shock absorption units are arranged in linear distribution, the shock absorption units are formed with spherical caps, the spherical caps are in contact with the ground to produce elastic deformation to reduce the impact force received by the foot.

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