Easily deformable air chamber and sole thereof

Abstract

This invention discloses a deformable air chamber and its sole, relating to the field of footwear manufacturing technology. The air chamber is disposed within the sole and is a hollow, arc-shaped sac-like structure. Its upper wall forms an outwardly arched arc-shaped convex surface, and its lower wall is an arc-shaped curved surface. The two ends of the air chamber facing the ankle gradually converge from the main body of the air chamber and intersect each other. The vertical projection of the intersection point falls outside the outline of the bottom surface of the air chamber cavity. This invention, by placing an air chamber inside the sole, allows the arched upper wall to deform uniformly with the pressure of the foot during walking and stepping. The concave lower wall and the suspended ends outside the outline of the bottom surface of the air chamber cavity are not constrained by the bottom surface support and have elastic recovery force, easily undergoing reversible deformation. This allows the air chamber to quickly return to its original shape after each compression, effectively avoiding the problem of plastic deformation or structural collapse of the chamber wall caused by long-term repeated pressure. This gives the air chamber the effects of shock absorption and stable support, improving wearing comfort and sole durability.

Description

Technical Field

[0001] This invention relates to the field of footwear manufacturing technology, specifically a deformable air chamber and its sole. Background Technology

[0002] Shoes, as an indispensable part of daily life, generally provide breathability, warmth, and slip resistance. As people's living standards improve, their demands for shoes also increase. Beyond protection, they pay more attention to comfort and style. To enhance comfort and suit the needs of prolonged walking, many shoes now incorporate shock absorption or ventilation in their soles, requiring air chambers. Traditional air chamber structures are often simple in form, basically bladder-like, typically with a uniform cross-section, an approximately elliptical shape, or a curved upper surface. They are usually located at the heel, where pressure is greatest. Under repeated high-pressure compression in this area, the air chamber walls are prone to plastic deformation or collapse, preventing them from actively returning to their original volume after compression, thus reducing shock absorption and ventilation. Summary of the Invention

[0003] The purpose of this invention is to provide a deformable air chamber and its sole to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a deformable air chamber disposed inside the sole of a shoe. The air chamber is a hollow arc-shaped sac structure, with its upper wall forming an outwardly arched arc-shaped convex surface and its lower wall being an arc-shaped surface. The two ends of the air chamber facing the ankle gradually converge from the main body of the air chamber and intersect with each other, and the vertical projection of the intersection point falls outside the outline range of the bottom surface of the air chamber cavity.

[0005] Furthermore, the angle between the upper wall of the air chamber and the plane of the shoe sole is 30~75°.

[0006] Furthermore, the lower wall of the air chamber forms an inwardly concave arc-shaped surface.

[0007] A shoe sole, wherein the shoe sole contains the aforementioned deformable air chamber.

[0008] Furthermore, the sole is also provided with an air passage that communicates with the air chamber. One end of the air passage is connected to the inside of the shoe, and the other end is connected to the outside.

[0009] Furthermore, the air duct is an air intake duct, which is connected to the air chamber. One end of the air intake duct is provided with an air inlet that communicates with the outside, and the other end is provided with an air outlet that communicates with the inside of the shoe. The air intake duct includes an air intake channel connecting the air inlet and the air chamber, and an air outlet channel connecting the air chamber and the air outlet. The direction from the air inlet to the air chamber is a low-resistance direction, and the direction from the air outlet to the air chamber is a high-resistance direction.

[0010] Furthermore, the air passage is an exhaust passage, which is connected to the air chamber. One end of the exhaust passage is provided with an air intake hole that communicates with the inside of the shoe, and the other end is provided with an exhaust hole that communicates with the outside. The exhaust passage includes an air intake channel that connects the air intake hole and the air chamber, and an exhaust channel that connects the air chamber and the exhaust hole. The direction from the air intake hole to the air chamber is a low-resistance direction, and the direction from the exhaust hole to the air chamber is a high-resistance direction.

[0011] Furthermore, there are two gas chambers arranged at an interval.

[0012] Furthermore, all air chambers are air inlets, and all air passages are air inlets. The air inlets are connected to the air chambers, with one end having an air inlet that communicates with the outside and the other end having an air outlet that communicates with the inside of the shoe. The air inlet includes an air intake channel connecting the air inlet and the air chamber, and an air outlet channel connecting the air chamber and the air outlet. The direction from the air inlet to the air chamber is a low-resistance direction, and the direction from the air outlet to the air chamber is a high-resistance direction.

[0013] Furthermore, the air chambers are all exhaust chambers, and the air passages are exhaust passages. The exhaust passages are connected to the air chambers, with one end having an air intake hole communicating with the inside of the shoe and the other end having an exhaust hole communicating with the outside. The exhaust passages include an air intake channel connecting the air intake hole and the air chamber, and an exhaust channel connecting the air chamber and the exhaust hole. The direction from the air intake hole to the air chamber is a low-resistance direction, and the direction from the exhaust hole to the air chamber is a high-resistance direction.

[0014] Furthermore, the air chamber includes an air inlet chamber and an air outlet chamber, and the air passage includes an air inlet passage and an air outlet passage. The air inlet passage is connected to the air inlet chamber, with an air inlet at one end communicating with the outside and an air outlet at the other end communicating with the inside of the shoe. The air inlet passage includes an air intake channel connecting the air inlet and the air inlet chamber, and an air outlet channel connecting the air inlet chamber and the air outlet. The direction from the air inlet to the air inlet chamber is a low-resistance direction, and the direction from the air outlet to the air inlet chamber is a high-resistance direction. The air outlet passage is connected to the air outlet chamber, with an air intake at one end communicating with the inside of the shoe and an air outlet at the other end communicating with the outside. The air outlet passage includes an air intake channel connecting the air intake and the air outlet chamber, and an air outlet channel connecting the air outlet chamber and the air outlet. The direction from the air intake to the air outlet chamber is a low-resistance direction, and the direction from the air outlet to the air outlet chamber is a high-resistance direction.

[0015] Furthermore, the sole includes a midsole and an outsole. The lower surface of the midsole is concave to form an air chamber groove and an air channel groove. When the outsole is tightly fitted with the midsole, an air chamber and an air channel are formed between it and the air chamber groove and the air channel groove.

[0016] Furthermore, the air chamber is positioned at the corresponding heel position.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention sets up an air chamber inside the sole of the shoe. When walking and stepping, the upper wall of the arch can deform evenly with the pressure of the foot. The lower wall of the concave part and the suspended end outside the outline of the bottom surface of the air chamber are not constrained by the bottom surface support and have elastic recovery force, which can easily undergo reversible deformation. This allows the air chamber to quickly return to its original shape after each compression, effectively avoiding the problem of plastic deformation of the chamber wall or structural collapse caused by long-term repeated pressure. This gives the air chamber the effect of shock absorption and stable support, improving wearing comfort and the durability of the sole. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the easily deformable air chamber according to a specific embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the sole structure of a specific embodiment two of the present invention;

[0020] Figure 3 This is a schematic diagram of the midsole structure in a shoe sole according to a specific embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the sole structure of a specific embodiment three of the present invention;

[0022] Figure 5 This is a schematic diagram of the midsole structure in a shoe sole according to a specific embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the sole in a specific embodiment five of the present invention;

[0024] Figure 7 This is a schematic diagram of the sole structure of a specific embodiment five of the present invention;

[0025] Figure 8 This is a schematic diagram of the midsole structure in a shoe sole according to a specific embodiment of the present invention;

[0026] In the diagram, 100-sole, 101-midsole, 102-outsole, 103-sealing strip, 1-air chamber, 11-upper wall, 12-lower wall, 13-intersection point, 14-intake chamber, 15-exhaust chamber, 21-intake hole, 22-exhaust hole, 23-intake channel, 24-exhaust channel, 31-inhalation hole, 32-exhaust hole, 33-inhalation channel, 34-exhaust channel. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific Implementation Example 1:

[0029] like Figure 1 As shown, this embodiment provides a deformable air chamber 1, which is disposed within the sole 100 of the shoe. The deformation of the air chamber 1 absorbs impact, improving the shoe's shock absorption effect. The air chamber 1 is a hollow, arc-shaped sac-like structure. Its upper wall 11 forms an outwardly arched convex surface, and its lower wall 12 is an arc-shaped surface, for example, an inwardly concave arc-shaped concave surface. The two ends of the air chamber 1 facing the ankle gradually converge from the main body of the air chamber 1 and intersect each other. The vertical projection of the intersection point 13 falls outside the outline of the bottom surface of the air chamber cavity. In this embodiment… The angle between the upper wall 11 of the air chamber and the plane of the sole is 30~75°. When walking and stepping, the arched upper wall 11 can deform evenly with the pressure of the sole. The concave lower wall 12 and the suspended end that is outside the outline of the bottom surface of the air chamber are not constrained by the bottom surface support and have elastic recovery force, which can easily undergo reversible deformation. This allows the air chamber 1 to quickly return to its original shape after each compression, effectively avoiding the problem of plastic deformation of the chamber wall or structural collapse caused by long-term repeated pressure. This gives the air chamber 1 the effect of shock absorption and stable support, improving wearing comfort and the durability of the sole. Specific Implementation Example 2:

[0031] like Figure 2 and Figure 3 As shown, this embodiment provides a shoe sole, in which an air chamber 1 as described in specific embodiment one is provided, and an air passage communicating with the air chamber 1 is also provided. One end of the air passage is connected to the inside of the shoe, and the other end is connected to the outside. The air passage is an air inlet, and the air inlet has a Tesla valve structure. The air inlet is connected to the air chamber 1, and one end of it has an air inlet hole 21 communicating with the outside, and the other end has an air outlet hole 22 communicating with the inside of the shoe. It includes an air inlet channel 23 connecting the air inlet hole 21 and the air chamber 1, and an air outlet connecting the air chamber 1 and the air outlet hole 22. The air inlet channel 24 has a low resistance direction from the air inlet 21 to the air chamber 1 and a high resistance direction from the air outlet 22 to the air chamber 1. The air inlet channel 23 extends from the air chamber 1 to the outside of the sole. To enhance the visual effect, the extended air inlet channel 23 is sealed by a transparent sealing strip, allowing the user to intuitively feel the air intake effect. The air outlet channel 24 extends from the air chamber 1 to the corresponding forefoot area and / or arch area. The end of the air outlet channel 24 is a divergent channel, and the air outlet 22 is set on this channel.

[0032] In this embodiment, the sole 100 includes a midsole 101 and an outsole 102. The midsole 101 is made of TPU foam particles. TPU foam particles have low density, good wear resistance, low hardness, good resilience, high tensile strength, and good tear resistance, making the sole lightweight, elastic, and cushioning, thus increasing the shock absorption performance of the sole. The outsole 102 is made of rubber material and has good wear resistance. The lower surface of the midsole 101 corresponding to the heel position has an indented air chamber groove and an air channel groove. When the outsole 102 is tightly fitted with the midsole 101, the air chamber groove and air channel groove of the midsole 101 and the outsole 102 form an air chamber 1 and an air inlet. The air chamber 1 can be set at the corresponding heel position.

[0033] When the wearer steps down, the pressure from the sole 100 compresses the air chamber 1. When the foot is lifted, the air chamber 1 quickly returns to its original position. Due to the one-way nature of the Tesla valve, outside air enters the air chamber 1 through the air inlet 21 and the air inlet channel 23, drawing fresh air into the air chamber 1. When the foot is stepped down again, the pressure from the sole 100 compresses the air chamber 1 again. Due to the one-way nature of the Tesla valve, the air in the air chamber 1 enters the shoe through the air outlet 24 and the air outlet 22, spraying towards the sole or arch of the foot, injecting fresh air into the shoe and ventilating the inside of the shoe. This achieves one-way air intake, allowing fresh air from outside the shoe to be injected into the shoe in one direction. Specific Implementation Example 3:

[0035] like Figure 4 and Figure 5 As shown, this embodiment has the same air chamber 1 and air passage as specific embodiment two. The difference from specific embodiment two is that the air passage is an exhaust passage, which is also a Tesla valve structure. The exhaust passage is connected to the air chamber 1. One end of the exhaust passage is provided with an air intake hole 31 that communicates with the inside of the shoe, and the other end is provided with an exhaust hole 32 that communicates with the outside. It includes an air intake channel 33 connecting the air intake hole 31 and the air chamber 1, and an exhaust channel 34 connecting the air chamber 1 and the exhaust hole 32. The direction from the air intake hole 31 to the air chamber 1 is a low-resistance direction, and the direction from the exhaust hole 32 to the air chamber 1 is a high-resistance direction. The exhaust channel 34 extends from the air chamber 1 to the outside of the sole. In order to enhance the visualization effect, the extended exhaust channel 34 is sealed by a transparent sealing strip, so that the user can intuitively feel the exhaust effect. The air intake channel 33 extends from the direction of the air chamber 1 to the corresponding forefoot area and / or arch area. The end of the air intake channel 33 is a divergent channel, and the air intake hole 31 is set on the channel.

[0036] When the wearer walks and steps down, the air chamber 1 is compressed under the influence of body weight. Due to the one-way nature of the Tesla valve, airflow cannot easily enter the shoe through the intake channel 33 and the intake hole 31. Therefore, the airflow is blown out through the exhaust channel 34 and the exhaust hole 32, and the airflow blown out from the exhaust hole 32 is discharged outside the shoe. Correspondingly, when the foot is lifted, the air chamber 1 quickly recovers. Due to the one-way nature of the Tesla valve, outside air cannot easily enter the air chamber 1 through the exhaust channel 34 and the exhaust hole 32. Therefore, the air inside the shoe enters the air chamber through the intake channel 33 and the intake hole 31, drawing in the stuffy and humid air inside the shoe into the air chamber 1. When the lifted foot touches the ground again, the air chamber 1 is compressed again, and the hot and humid air inside the air chamber 1 is blown out through the exhaust channel 34 and the airflow blown out from the exhaust hole 32 is discharged outside the shoe. This cycle is repeated to achieve one-way exhaust, expelling the hot and humid air inside the shoe from the outside. Specific Implementation Example 4:

[0038] This embodiment has the same air chamber 1 and air passage as specific embodiment two or three. The difference is that there are two air chambers 1 arranged alternately, and two air passages are provided accordingly. For example, both air chambers 1 are air inlet chambers 14, and both air passages are air inlet passages 2. The two air inlet chambers and two air inlet passages 2 enhance the air intake. The working principle is the same as that of specific embodiment two. Alternatively, both air chambers 1 are exhaust chambers 15, and both air passages are exhaust passages 3. The two exhaust chambers 15 and two exhaust passages 3 enhance the exhaust. The working principle is the same as that of specific embodiment three. Specific Implementation Example 5:

[0040] like Figures 6-8As shown, this embodiment has the same air chamber 1 and air passage as specific embodiment four. Two air chambers 1 are provided, arranged alternately. Two corresponding air passages are provided. Unlike specific embodiment three, the air chamber includes an air inlet chamber 14 and an air outlet chamber 15, and the air passage includes an air inlet passage 2 and an air outlet passage 3. The air inlet passage is connected to the air inlet chamber 14, with one end having an air inlet hole 21 communicating with the outside, and the other end having an air outlet hole 22 communicating with the inside of the shoe. The air inlet passage includes a connection to the air inlet... The system includes an air inlet 21, an air inlet channel 23 connecting the air inlet chamber 14, and an air outlet channel 24 connecting the air inlet chamber 14 and the air outlet 22. The direction from the air inlet 21 to the air inlet chamber 14 is a low-resistance direction, while the direction from the air outlet 22 to the air inlet chamber 14 is a high-resistance direction. The air inlet channel 23 extends from the air inlet chamber 14 to the outer side of the sole. To enhance visibility, a transparent sealing strip seals the extended air inlet channel 23, allowing the user to directly perceive the air intake effect. The air outlet channel 24 extends from the air inlet chamber... The air vent 24 extends in the direction of the corresponding forefoot area and / or arch area, with the end of the vent 24 being a divergent section, and the air vent 22 is disposed on this vent. The exhaust duct is connected to the exhaust chamber 15, with one end having an air intake 31 communicating with the inside of the shoe, and the other end having an exhaust vent 32 communicating with the outside. The exhaust duct includes an air intake duct 33 connecting the air intake 31 and the exhaust chamber 15, and an exhaust duct 34 connecting the exhaust chamber 15 and the exhaust vent 32, extending from the air intake 31 to the exhaust chamber 15. The direction from the exhaust port 32 to the exhaust chamber 15 is the low-resistance direction, and the direction from the exhaust port 32 to the exhaust chamber 15 is the high-resistance direction. The exhaust channel 34 extends from the exhaust chamber 15 to the outside of the sole. To enhance the visual effect, the extended exhaust channel 34 is sealed by a transparent sealing strip, allowing the user to intuitively feel the exhaust effect. The air intake channel 33 extends from the exhaust chamber 15 to the corresponding forefoot area and / or arch area. The end of the air intake channel 33 is a divergent channel, and the air intake port 31 is set on this channel.

[0041] When the wearer walks, the pressure exerted by the outsole 102 when stepping down causes the air intake chamber 14 and exhaust chamber 15 to compress. Due to the one-way nature of the Tesla valve, airflow is difficult to expel from the air intake port 11 through the air intake channel 23, and also difficult to enter the shoe through the air intake hole 31 through the air intake channel 33. Therefore, when the air intake chamber 14 and exhaust chamber 15 are compressed, airflow is blown into the shoe through the air outlet 22 through the air outlet 24, spraying towards the ball of the foot or arch, and blown out through the exhaust hole 32 through the exhaust channel 34, expelling the airflow from the exhaust hole 32 outside the shoe. Correspondingly, when the foot is lifted, the air intake chamber 14 and exhaust chamber 15 quickly return to their original shape. Due to the one-way nature of the Tesla valve, airflow is difficult to enter the air intake chamber 14 through the air outlet 22 through the air outlet 24, and outside air is difficult to enter the exhaust chamber 15 through the exhaust hole 32 through the exhaust channel 34. Therefore, the air intake... When the inlet 14 and outlet 15 are restored, outside air enters the inlet 14 through the inlet port 21 via the inlet channel 23, drawing in fresh air from the outside. Inside the shoe, air enters the outlet 15 through the inlet port 31 via the inlet channel 33, drawing in humid air from inside the shoe. When the raised foot touches the ground again, squeezing the inlet 14 and outlet 15 again, fresh air is blown into the shoe through the outlet port 22 via the outlet channel 24, spraying towards the sole or arch, injecting fresh air into the shoe. Humid air is blown out through the outlet port 32 via the outlet channel 34, and the airflow blown out from the outlet port 32 is discharged from the shoe. This achieves one-way air intake and one-way air exhaust, accelerating the expulsion of air from inside the shoe. This cycle repeats throughout the wearer's daily walking process, creating a continuous airflow circulation inside the shoe.

[0042] This invention incorporates an air chamber inside the sole. During walking, the upper arch can deform evenly with the pressure of the foot, while the lower concave wall and the suspended end outside the bottom contour of the air chamber are not constrained by the bottom surface and have elastic recovery force, making them prone to reversible deformation. This allows the air chamber to quickly return to its original shape after each compression, effectively avoiding the problem of plastic deformation or structural collapse of the chamber wall caused by long-term repeated pressure. This gives the air chamber the effects of shock absorption and stable support, improving wearing comfort and the durability of the sole.

[0043] Although the present invention has been described in detail with reference to the foregoing 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. 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. A deformable air chamber disposed within a shoe sole, characterized by: The air chamber is a hollow, arc-shaped sac-like structure. Its upper wall forms an outwardly arched arc-shaped convex surface, and its lower wall is an arc-shaped surface. The two ends of the air chamber facing the ankle gradually converge from the main body of the air chamber and intersect each other. The vertical projection of the intersection point falls outside the outline of the bottom surface of the air chamber cavity.

2. The easily deformable air chamber according to claim 1, characterized in that: The angle between the upper wall of the air chamber and the plane of the shoe sole is 30~75°.

3. The easily deformable air chamber according to claim 1, characterized in that: The lower wall forms an inwardly concave arc-shaped surface.

4. A shoe sole, characterized in that: The sole is provided with a deformable air chamber as described in any one of claims 1 to 3.

5. The sole according to claim 4, characterized in that: The sole of the shoe is also provided with an air passage that communicates with the air chamber. One end of the air passage is connected to the inside of the shoe, and the other end is connected to the outside.

6. The sole according to claim 5, characterized in that: The air duct is an air intake duct, which is connected to the air chamber. One end of the air intake duct is provided with an air inlet that communicates with the outside, and the other end is provided with an air outlet that communicates with the inside of the shoe. The air intake duct includes an air intake channel connecting the air inlet and the air chamber, and an air outlet channel connecting the air chamber and the air outlet. The direction from the air inlet to the air chamber is a low-resistance direction, and the direction from the air outlet to the air chamber is a high-resistance direction.

7. The sole according to claim 5, characterized in that: The air passage is an exhaust passage, which is connected to the air chamber. One end of the exhaust passage is provided with an air intake hole that communicates with the inside of the shoe, and the other end is provided with an exhaust hole that communicates with the outside. The exhaust passage includes an air intake channel that connects the air intake hole and the air chamber, and an exhaust channel that connects the air chamber and the exhaust hole. The direction from the air intake hole to the air chamber is a low-resistance direction, and the direction from the exhaust hole to the air chamber is a high-resistance direction.

8. The sole according to claim 5, characterized in that: There are two gas chambers, which are arranged at an interval.

9. The sole according to claim 8, characterized in that: All air chambers are air inlets, and the air passages are air inlets connected to the air chambers. One end of the air inlet is provided with an air inlet that communicates with the outside, and the other end is provided with an air outlet that communicates with the inside of the shoe. The air inlet includes an air intake channel connecting the air inlet and the air chamber, and an air outlet channel connecting the air chamber and the air outlet. The direction from the air inlet to the air chamber is a low-resistance direction, and the direction from the air outlet to the air chamber is a high-resistance direction.

10. The sole according to claim 8, characterized in that: All air chambers are exhaust chambers, and the air passage is an exhaust passage. The exhaust passage is connected to the air chamber. One end of the exhaust passage is provided with an air intake hole that communicates with the inside of the shoe, and the other end is provided with an exhaust hole that communicates with the outside. The exhaust passage includes an air intake channel that connects the air intake hole and the air chamber, and an exhaust channel that connects the air chamber and the exhaust hole. The direction from the air intake hole to the air chamber is a low-resistance direction, and the direction from the exhaust hole to the air chamber is a high-resistance direction.

11. The sole according to claim 8, characterized in that: The air chamber includes an air inlet chamber and an air outlet chamber. The air passage includes an air inlet passage and an air outlet passage. The air inlet passage is connected to the air inlet chamber, with an air inlet at one end communicating with the outside and an air outlet at the other end communicating with the inside of the shoe. The air inlet passage includes an air intake channel connecting the air inlet and the air inlet chamber, and an air outlet channel connecting the air inlet and the air outlet. The direction from the air inlet to the air inlet chamber is a low-resistance direction, and the direction from the air outlet to the air inlet chamber is a high-resistance direction. The air outlet passage is connected to the air outlet chamber, with an air intake at one end communicating with the inside of the shoe and an air outlet at the other end communicating with the outside. The air outlet passage includes an air intake channel connecting the air intake and the air outlet chamber, and an air outlet channel connecting the air outlet and the air outlet. The direction from the air intake to the air outlet chamber is a low-resistance direction, and the direction from the air outlet to the air outlet chamber is a high-resistance direction.

12. The sole according to claim 5, characterized in that: The sole includes a midsole and an outsole. The lower surface of the midsole is concave to form an air chamber groove and an air channel groove. When the outsole is tightly fitted with the midsole, an air chamber and an air channel are formed between it and the air chamber groove and the air channel groove.

13. The sole according to claim 4, characterized in that: The air chamber is positioned at the corresponding heel position.

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