Air cushion antiskid shoe sole with movable nails

Abstract

The invention provides an air cushion anti-skid shoe sole with movable nails, and relates to the technical field of shoes, the air cushion anti-skid shoe sole comprises an outer sole and an inner sole arranged above the outer sole, an air cushion is arranged between the outer sole and the inner sole, and the outer sole is provided with a plurality of open holes penetrating through the thickness direction of the outer sole; the device further comprises a plurality of movable nails, and the movable nails can be arranged in the corresponding open holes in a penetrating mode in an up-and-down sliding mode. The upper ends of the movable nails abut against or are fixedly connected with the lower surface of the air cushion, and the lower ends of the movable nails extend downwards and protrude out of the lower surface of the outer sole. Through the movable nail capable of sliding up and down, the movable nail retracts in a self-adaptive mode when a foreign matter is treaded, and the outer sole is basically kept flat, such as flat ground; meanwhile, the movable nails push the air cushion to be locally pressed, the internal air pressure is increased, downward extrusion force is generated on the movable nails in turn, the movable nails tightly abut against foreign matter and the ground, the large contact area is kept, the road holding force and stability are effectively improved, and the defect that a traditional shoe sole arches and is prone to slipping is overcome.

Description

Technical Field

[0001] This invention relates to the field of footwear technology, and in particular to an air-cushioned anti-slip sole with movable spikes. Background Technology

[0002] As the core component of footwear that comes into direct contact with the ground, the sole's structural design directly affects wearing comfort, cushioning performance, and slip resistance. Whether in daily walking, outdoor sports, or special work scenarios, the slip resistance of the sole directly impacts the user's safety and experience.

[0003] Traditional shoe soles are typically made of a single piece of rubber or foam material, relying on various tread patterns on the surface to increase traction. This structure provides basic slip resistance on smooth, dry surfaces, but its grip is often insufficient in wet, muddy, or uneven conditions. To further improve grip on challenging terrains, existing technologies include soles with cleats, such as those found in soccer cleats, trail running shoes, or hiking boots. These soles significantly enhance grip by embedding raised cleats in key stress areas, which can embed into soft ground or bite into rock crevices.

[0004] However, existing shoe sole structures with anti-slip studs still have significant drawbacks. Most anti-slip studs on the market are fixed to the sole, and their height and position cannot adjust to changes in road conditions. When a wearer steps on protruding objects such as stones, tree roots, or construction debris, the object pushes up a localized area of ​​the sole, causing unexpected arching deformation. This localized arching forces the area of ​​the sole that was originally in contact with the ground to lift up, resulting in a sudden reduction in the effective contact area between the sole and the ground. According to the principles of friction mechanics, this reduction in contact area directly leads to a decrease in maximum static friction, significantly increasing the wearer's risk of slipping, spraining an ankle, or even falling.

[0005] Furthermore, due to the inherent deformation capacity of the sole material and the structural limitations of the fixed spikes, when stepping on foreign objects, the sole can only contact the object with the spike tip or a small edge, resulting in a very small contact area that cannot provide effective support and protection. This not only reduces instantaneous grip stability but also makes it difficult for the wearer to quickly regain balance after stepping on an object. Especially in outdoor sports or working on complex terrain, this instantaneous slippage can often lead to serious sports injuries or accidents.

[0006] Therefore, how to provide a sole structure that can adaptively increase the contact area and improve grip stability when stepping on foreign objects, while retaining the embedding advantage of anti-slip studs on soft ground and solving the slipping problem when stepping on hard foreign objects, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] This invention overcomes the shortcomings of existing technologies and provides an air-cushioned anti-slip sole with movable studs. The movable studs, which can slide up and down, retract adaptively when stepping on foreign objects, keeping the outsole basically flat, as if walking on flat ground. At the same time, the movable studs push the air cushion, causing it to be locally compressed, increasing the internal air pressure, which in turn generates a downward squeezing force on the movable studs, making them tightly press against the foreign objects and the ground, maintaining a large contact area, effectively improving grip and stability, and overcoming the defects of traditional shoe soles that are arched and prone to slipping.

[0008] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0009] An air-cushioned anti-slip sole with movable studs includes an outsole and an insole disposed above the outsole, with an air cushion disposed between the outsole and the insole.

[0010] The outer bottom has several openings that extend through its thickness direction;

[0011] It also includes a number of movable pins, which can slide up and down through the corresponding openings;

[0012] The upper end of the movable pin abuts against or is fixedly connected to the lower surface of the air cushion, and the lower end of the movable pin extends downward and protrudes from the lower surface of the outsole.

[0013] When stepped on, the movable pin is pressed and slides upward relative to the outsole, and its upper end pushes the air cushion upward, causing the air cushion to be locally deformed by pressure.

[0014] Furthermore, the movable pin has a T-shaped structure, including a head extending horizontally at the upper end and a rod extending vertically; the head contacts the lower surface of the air cushion, the rod passes through the opening, and the outer diameter of the rod is smaller than the inner diameter of the opening to form a sliding fit.

[0015] Furthermore, the opening is a stepped hole or a straight hole, and the outer diameter of the head of the movable pin is larger than the minimum inner diameter of the opening to prevent the movable pin from coming out of the opening and to increase the pushing area of ​​the air cushion.

[0016] Furthermore, the air cushion is provided with several traction structures inside, with the two ends of the traction structures connected to the upper and lower surfaces of the air cushion respectively, to limit the expansion amplitude in the thickness direction when the air cushion is inflated, and to prevent the air cushion from bulging into a spherical shape.

[0017] Furthermore, the traction structure is a rope or webbing, and multiple traction structures are arranged in an array within the air cushion or spaced apart along the direction of force.

[0018] Furthermore, the outer or inner sole is provided with an air nozzle that communicates with the interior of the air cushion. The air nozzle is used to inflate or deflate the air cushion to regulate the internal air pressure of the air cushion.

[0019] Furthermore, the lower end face of the movable nail is provided with anti-slip texture or embedded with wear-resistant material.

[0020] Furthermore, the number of movable pins is multiple, distributed in the forefoot area and / or heel area and / or arch area of ​​the outsole.

[0021] Furthermore, the movable nail is made of rubber, plastic, carbon fiber, aluminum, or alloy materials.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] First, it helps improve slip resistance and walking stability when stepping on foreign objects. This invention features movable studs that can slide up and down. When stepping on a protruding object such as a stone, the stud corresponding to the object adaptively retracts under pressure according to the upper edge contour of the object, keeping the outsole basically flat and avoiding the overall tilting caused by localized lifting of traditional soles. Simultaneously, the movable studs push upwards against the air cushion, causing localized pressure depression and increased internal air pressure. This increased air pressure, in turn, exerts a downward squeezing force on the movable studs, making the bottom of the studs more firmly pressed against the object and the ground. This provides excellent lateral anti-rollover capability; that is, when the foot steps on the edge of an object from the side, the retracting movable studs help keep the sole flat overall, preventing instantaneous ankle rollover caused by one side of the sole lifting up, thus significantly reducing the risk of ankle sprains and improving safety when walking on rough terrain. In addition, it has excellent forefoot grip. When the forefoot steps on an object, or during activities such as climbing a hill or hiking, multiple active studs in the forefoot area will independently and adaptively retract according to the protrusion of the object, making the outsole present an undulating contact surface, increasing the contact area between the forefoot and the object. At the same time, the local pressure effect of the air cushion further enhances the wrapping and clamping force of the active studs on the object, thus obtaining stronger grip and push-off efficiency on slopes or soft ground.

[0024] Secondly, it combines cushioning and rebound with structural stability. The air cushion itself has excellent cushioning, shock absorption, and energy return functions, which can significantly improve wearing comfort and make walking feel light and quick. At the same time, the traction structure inside the air cushion effectively limits the excessive expansion of the air cushion, preventing it from bulging into a ball shape, and ensuring that the sole maintains structural stability and reliable support during use.

[0025] Third, it is highly adaptable and has a wide range of applications. By setting up air valves, wearers can flexibly adjust the internal air pressure of the air cushion according to their own weight, road conditions, and sports modes to achieve personalized softness and hardness adjustment; the movable spikes can be distributed in the forefoot or heel area according to functional needs and can be made of different materials, making it suitable for various application scenarios such as daily walking, outdoor cross-country, and sports competitions. It is particularly suitable for improving jumping ability in sports competitions, and has a significant effect on improving performance in events such as long jump and high jump.

[0026] Fourth, the greater the intensity of the exercise, the tighter the fit, achieving dynamic adaptive compression. When this sole is used to make a complete shoe, during stepping, the movable studs slide upwards, pushing and deforming the air cushion, which in turn generates upward pressure on the insole. This force, on the one hand, makes the insole fit tightly to the sole of the foot, and on the other hand, is transmitted through the insole to the upper, simultaneously improving the fit between the upper and the instep. This creates a linked compression effect: the air cushion pushes against the insole, the insole pushes against the sole of the foot, and the upper tightens against the instep. The more intense the movement, the faster and more powerful this compression process becomes, thus achieving dynamic tightening of the shoe and foot according to the intensity of the exercise. This effectively avoids the friction discomfort or loss of control caused by the foot sliding inside the shoe during vigorous exercise, improves exercise response efficiency and wearing stability, and prevents the shoe from slipping off. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and are used together with the embodiments of the invention to explain the invention. They do not constitute a limitation of the invention. In the drawings:

[0028] Figure 1 This is a schematic diagram of the sole structure of the present invention viewed from the bottom.

[0029] Figure 2 yes Figure 1 Enlarged view of circle A in the middle;

[0030] Figure 3 This is a cross-sectional view of the sole of the shoe of the present invention. Figure 1 There was no foreign object being stepped on at this time;

[0031] Figure 4 This is a cross-sectional view of the sole of the shoe of the present invention. Figure 2 At this point, the soles of the shoes are completely pressed against the foreign object;

[0032] Figure 5 This is a cross-sectional view of the sole of the shoe of the present invention. Figure 3 At this point, the front of the shoe sole is in a state of stepping on a foreign object.

[0033] In the diagram: 1. Outsole; 101. Opening; 2. Insole; 3. Air cushion; 4. Movable stud; 5. Traction structure; 6. Air nozzle; 7. Foreign object. Detailed Implementation

[0034] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0035] like Figures 1 to 5 As shown, this invention claims protection for an air-cushioned anti-slip sole with movable spikes 4, comprising an outsole 1 and an insole 2 disposed above the outsole 1. An air cushion 3 is disposed between the outsole 1 and the insole 2. The air cushion 3 is a sealed elastic cavity filled with gas to provide cushioning and energy return.

[0036] Specifically, the outsole 1 has several openings 101 extending through its thickness. In this embodiment, the openings 101 are cylindrical straight holes with a uniform inner diameter. The sole also includes several movable studs 4, which are slidably inserted into the corresponding openings 101. The upper end of the movable stud 4 abuts against the lower surface of the air cushion 3, and the lower end of the movable stud 4 extends downward and protrudes from the lower surface of the outsole 1 so as to make initial contact with the ground when walking or running.

[0037] In a preferred embodiment, the movable pin 4 has a T-shaped structure, including a head extending horizontally at the upper end and a rod extending vertically downward from the center of the head. The upper surface of the head abuts against the lower surface of the air cushion 3 to transmit pressure; the rod passes through the opening 101, and the outer diameter of the rod is slightly smaller than the inner diameter of the opening 101, forming a sliding fit between them to ensure that the movable pin 4 can move smoothly up and down within the opening 101. At the same time, the outer diameter of the head is larger than the inner diameter of the opening 101, thereby forming a limiting structure to prevent the movable pin 4 from completely dislodging from below the opening 101 under the action of gravity, and also increasing the pushing area against the air cushion 3.

[0038] When the wearer walks normally on a flat surface, the lower end of the movable pin 4 contacts the ground. Under the influence of the wearer's weight, the movable pin 4 slides upward relative to the outsole 1, and its upper end pushes upward against the lower surface of the air cushion 3, causing the air cushion 3 to be locally compressed and deformed. After being compressed, the internal air pressure of the air cushion 3 increases, which provides elastic support for the wearer on the one hand, and stores elastic potential energy on the other.

[0039] When the wearer steps on the protruding object 7, the object 7 directly pushes against one or more corresponding movable studs 4, causing them to slide upwards with a greater displacement relative to the outsole 1. The upper head of the movable stud 4 strongly pushes against the lower surface of the air cushion 3, causing the air cushion 3 to deform in that local area. The movable stud 4 corresponding to the object 7 can adaptively retract under pressure according to the upper edge contour of the object 7, and the outsole 1 remains basically flat. At the same time, the movable stud 4 pushes the air cushion 3 upwards, causing the air cushion 3 to be locally compressed and indented, and the internal air pressure increases accordingly. The increased air pressure, in turn, exerts a downward squeezing force on the movable stud 4, causing the bottom of the movable stud 4 to press more tightly against the object 7 and the ground, thereby maintaining a larger contact area, effectively improving grip and walking stability, and overcoming the defect of traditional fixed anti-slip studs that are prone to slipping due to the reduced contact area caused by the arching of the sole.

[0040] To prevent the air cushion 3 from over-expanding and bulging into a spherical shape after inflation, which would reduce the stability of the sole, several traction structures 5 are installed inside the air cushion 3. The two ends of each traction structure 5 are fixedly connected to the upper and lower inner surfaces of the air cushion 3, respectively. When the air cushion 3 is inflated, the internal air pressure increases, and the upper and lower surfaces tend to move away from each other. At this time, the traction structures 5 are stretched, thereby limiting the expansion of the air cushion 3 in the thickness direction, keeping the air cushion 3 in a relatively flat shape, and ensuring the stability of the sole.

[0041] As a preferred option, the traction structure 5 can be made of rope or webbing. Multiple traction structures 5 are arranged in an array within the air cushion 3, or spaced apart along the direction of force, to ensure that the air cushion 3 is subjected to uniform force and that deformation is controllable.

[0042] To achieve adjustable air pressure inside the air cushion 3 and adapt to the needs of wearers with different weights, road conditions, or sports modes, an air valve 6 connected to the inside of the air cushion 3 is provided on the outsole 1 or insole 2. Wearers can inflate the air cushion 3 through the air valve 6 to increase air pressure, thereby improving support and resilience; they can also deflate the air cushion 3 through the air valve 6 to reduce air pressure, thereby improving softness and cushioning performance.

[0043] To further enhance anti-slip performance, the lower end face of the movable nail 4 can be provided with anti-slip textures, such as raised textures, dotted textures, or wavy textures; wear-resistant materials, such as ceramic particles or hard alloys, can also be embedded on the end face to improve wear resistance and grip.

[0044] The number of movable studs 4 can be flexibly set according to the size and functional requirements of the sole. Typically, multiple movable studs 4 are distributed in the forefoot area and / or heel area and / or arch area of ​​the outsole 1, which are the main force-bearing areas when the human body walks. The movable studs 4 are made of lightweight materials such as rubber, plastic, carbon fiber, aluminum, or alloy.

[0045] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air-cushioned anti-slip sole with movable studs, comprising an outsole (1) and an insole (2) disposed above the outsole (1), wherein an air cushion (3) is disposed between the outsole (1) and the insole (2), characterized in that: The outer bottom (1) has several openings (101) that extend through its thickness direction. It also includes a number of movable pins (4), which are slidably inserted into the corresponding openings (101); The upper end of the movable pin (4) abuts or is fixedly connected to the lower surface of the air cushion (3), and the lower end of the movable pin (4) extends downward and protrudes from the lower surface of the outer bottom (1). When stepped on, the movable nail (4) is pressed and slides upward relative to the outsole (1), and its upper end pushes the air cushion (3) upward, causing the air cushion (3) to be locally deformed by pressure.

2. The air-cushioned anti-slip sole with movable spikes according to claim 1, characterized in that: The movable pin (4) has a T-shaped structure. The movable pin (4) includes a head that extends horizontally at the upper end and a rod that extends vertically. The head contacts the lower surface of the air cushion (3). The rod passes through the opening (101), and the outer diameter of the rod is smaller than the inner diameter of the opening (101) to form a sliding fit and increase the pushing area against the air cushion (3).

3. The air-cushioned anti-slip sole with movable spikes according to claim 2, characterized in that: The opening (101) is a stepped hole or a straight hole, and the outer diameter of the head of the movable nail (4) is larger than the minimum inner diameter of the opening (101) to prevent the movable nail (4) from coming out of the opening (101).

4. The air-cushioned anti-slip sole with movable spikes according to claim 1, characterized in that: The air cushion (3) is provided with several traction structures (5) inside. The two ends of the traction structure (5) are respectively connected to the upper and lower surfaces inside the air cushion (3) to limit the expansion amplitude in the thickness direction when the air cushion (3) is inflated, so as to prevent the air cushion (3) from bulging into a spherical shape.

5. The air-cushioned anti-slip sole with movable studs according to claim 4, characterized in that: The traction structure (5) is a rope or webbing, and multiple traction structures (5) are arranged in an array or spaced apart along the direction of force within the air cushion (3).

6. The air-cushioned anti-slip sole with movable spikes according to claim 1, characterized in that: An air nozzle (6) is provided on the outer sole (1) or inner sole (2) and communicates with the inside of the air cushion (3). The air nozzle (6) is used to inflate or deflate the air cushion (3) to adjust the internal air pressure of the air cushion (3).

7. The air-cushioned anti-slip sole with movable spikes according to claim 1, characterized in that: The lower end face of the movable nail (4) is provided with anti-slip texture or embedded with wear-resistant material.

8. The air-cushioned anti-slip sole with movable spikes according to claim 1, characterized in that: The number of movable nails (4) is multiple, distributed in the forefoot area and / or heel area and / or arch area of ​​the outsole (1).

9. The air-cushioned anti-slip sole with movable spikes according to claim 1, characterized in that: The movable nail (4) is made of rubber, plastic, carbon fiber, aluminum or alloy materials.

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