A method for positioning an inflatable air cushion in the sole without glue

Abstract

This invention relates to a method for glue-free connection and positioning of an inflatable air cushion in a shoe sole. The method includes a lower sole, an upper sole, and an inflatable air cushion. Densely spaced, equidistant fixing posts are provided on the upper surface of the lower sole and the lower surface of the upper sole. The upper and lower surfaces of the inflatable air cushion are formed by curing rubber and a fiber mesh, with some of the fiber mesh exposed. After the air cushion inflates, the exposed fiber mesh deeply contacts the fixing posts, forming an attachment. Under the tension of the air cushion, the fiber mesh and fixing posts are tightly connected and do not detach, achieving glue-free fixation of the inflatable air cushion. After the air cushion deflates and shrinks, the fixing posts detach from the fiber mesh. This method utilizes the tension generated by the inflated air cushion, achieving the connection and fixation of the inflatable air cushion in the shoe sole without adhesive bonding. This results in better cushioning and rebound capabilities for the shoe sole. Simultaneously, the expansion and contraction of the inflatable air cushion provides the power for air circulation in the hollow inner cavity, enabling the shoe sole to have a ventilation function.

Description

Technical Field

[0001] This invention relates to a method for positioning an inflatable air cushion in a shoe sole without glue, belonging to the technical field of shoe improvement. Background Technology

[0002] Because air cushions with a certain pressure are lightweight and elastic, shoes with such air cushions in the sole have excellent shock absorption and a certain degree of rebound. At the same time, the hollow structure of the air cushion can also reduce the weight of the shoe. For this reason, people have glued and fixed elastic air cushions of different shapes and numbers to the sole to make various functional air-cushioned shoes. However, this method of gluing and fixing air cushions has two drawbacks: First, it is difficult to replace the air cushion once it leaks air; second, the soft elastic material glued to the air cushion weakens the impact force on the air cushion, reducing the rebound function of the air-cushioned shoe. At the same time, the addition of this fixing material also reduces the hollow space in the sole, increasing the weight of the sole. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide a method for attaching and positioning an inflatable air cushion in the sole of a shoe without glue. This method utilizes the tension generated by the inflated air cushion, achieving the connection and fixation of the inflatable air cushion in the sole without the use of glue or soft, elastic fixing materials. This makes it easier to replace the air cushion in air-cushioned shoes, saves on the original adhesive fixing materials for the inflatable air cushion, and allows for more complete elastic deformation of the air cushion in the hollow environment when under pressure, giving the sole a better shock absorption effect and rebound ability. At the same time, the expansion and contraction of the inflatable air cushion provides power for the air circulation in the hollow cavity, enabling the sole to have a ventilation function.

[0004] To solve the above problems, the specific technical solution of the present invention is as follows: A method for glue-free connection and positioning of an inflatable air cushion in a shoe sole, comprising a lower shoe sole, an upper shoe sole, and an inflatable air cushion. The inflatable air cushion is located in a sealed cavity formed after the lower shoe sole and the upper shoe sole are glued together. Densely spaced, equidistant fixing posts are provided on the upper surface of the lower shoe sole and the lower surface of the upper shoe sole. The inflatable air cushion is a hollow, sealed cavity made of elastic material and equipped with an inflation valve. The circumferential surface of the inflatable air cushion is formed by the curing of elastic rubber and elastic fibers, while the upper and lower surfaces of the inflatable air cushion are formed by the curing of rubber and fiber mesh, with some fiber mesh exposed. The exposed fiber mesh corresponds to the position of the fixing posts, and the circumference of each fiber mesh hole is larger than the circumference of each fixing post. After the inflatable air cushion is inflated, the exposed fiber mesh deeply contacts the fixing posts to form an attachment. Under the tension of the air cushion, the fiber mesh and the fixing posts are tightly connected and do not detach, achieving glue-free fixation of the inflatable air cushion. After the inflatable air cushion is deflated and retracted, the fixing posts detach from the fiber mesh.

[0005] The side surface between the lower and upper soles is formed by curing high-strength fibers and plastic materials together.

[0006] The number of inflatable air cushions is at least two. After the air cushions are inflated, the tension causes the upper and lower surfaces of each air cushion without exposed fiber mesh to adhere to the corresponding lower and upper soles to achieve a seal. A sealed air chamber is formed between each pair of air cushions or between the air cushion and the side surface connecting the upper and lower soles. An exhaust one-way valve is provided at the side end of the sealed air chamber, with the outlet of the exhaust one-way valve extending from the lower sole. An air inlet one-way valve is provided at the upper end of the sealed air chamber, with the inlet of the air inlet valve extending from the upper sole.

[0007] When there are two or more sealed air chambers, one of the sealed air chambers is equipped with an exhaust check valve and an intake check valve, and the remaining sealed air chambers are connected to each other by channels.

[0008] The aforementioned channel is located inside the lower sole of the shoe.

[0009] The upper and lower soles are each composed of three fiberboards connected by fiber filaments, with two seams located at the forefoot.

[0010] The upper sole is provided with an openable air intake window, and an inflation port is provided on the air intake window.

[0011] A rubber layer is provided on the surface of the fiberboard in the lower shoe sole that contacts the ground.

[0012] The method of attaching and positioning the inflatable air cushion in the sole without glue in this application adopts a hanging connection method of fixing posts and fiber mesh. This not only saves on the adhesive materials used to fix the air cushion, making it energy-saving and environmentally friendly, but also avoids the weakening of the impact force on the air cushion by the fixing materials, giving the sole better rebound ability. Moreover, the inflatable air cushion undergoes elastic deformation inside the hollow sole, and its high elastic deformation rate makes it less prone to damage. Even if the air cushion is damaged, replacement is very simple. At the same time, the expansion and contraction of the inflatable air cushion provides the power for air circulation in the hollow space inside the sole, giving the sole a ventilation function. Attached Figure Description

[0013] Figure 1 An exploded view of the inflatable cushioned shoe sole.

[0014] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0015] Figure 3 A cross-sectional view of the inflatable cushioned shoe sole in use.

[0016] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0017] Figure 5 This is a cross-sectional view of the inflatable air-cushioned shoe sole in its non-use state.

[0018] Figure 6 for Figure 5 A magnified view of a portion of the image. Implementation

[0019] like Figure 1 and Figure 2 As shown, a method for positioning an inflatable air cushion in a shoe sole without adhesive bonding includes a lower sole 1, an upper sole 2, and an inflatable air cushion 3. The inflatable air cushion 3 is located within a sealed cavity formed after the lower sole 1 and the upper sole 2 are glued together. Densely spaced, equidistant fixing posts 4 are provided on the upper surface of the lower sole 1 and the lower surface of the upper sole 2. The inflatable air cushion 3 is a hollow, sealed cavity made of elastic material and equipped with an inflation valve. The circumferential surface of the inflatable air cushion 3 is formed by the curing of elastic rubber and elastic fibers, while the upper and lower surfaces of the inflatable air cushion 3 are formed by the curing of rubber and fiber mesh 5, with some of the fiber mesh 5 exposed. The exposed fiber mesh 5 corresponds to the positions of the fixing posts 4, and the circumference of each fiber mesh hole is larger than the circumference of each fixing post. Figure 3 and Figure 4 As shown, after the inflatable air cushion 3 is inflated, the exposed fiber mesh 5 is indicated by red lines and is deeply in contact with the fixing post 4 to form a hook. Under the tension of the air cushion, the fiber mesh 5 and the fixing post 4 are tightly connected and do not detach, achieving glue-free fixation of the inflatable air cushion 3; Figure 5 and Figure 6 As shown, after the inflatable air cushion 3 deflates and retracts, the fixing post 4 separates from the fiber mesh 5.

[0020] The side surface between the lower sole 1 and the upper sole 2 is made of high-strength fiber and plastic material, which is cured and connected to ensure the connection strength and toughness.

[0021] The number of inflatable air cushions 3 is at least two. After the inflatable air cushions 3 are inflated, the tension causes the exposed fiber mesh 5 on the upper and lower surfaces of each inflatable air cushion 3 to adhere to the corresponding lower sole 1 and upper sole 2, achieving a seal. A sealed air chamber 6 is formed between every two inflatable air cushions 3 or between the air cushion and the side surface connecting the upper and lower soles. An exhaust one-way valve 7 is provided on the side of the sealed air chamber 6, with the outlet of the exhaust one-way valve 7 extending from the lower sole 1. An air inlet one-way valve 8 is provided at the upper end of the sealed air chamber 6, with the inlet of the air inlet one-way valve 8 extending from the upper sole. As the inflatable air cushions expand and contract during movement, the air inlet one-way valve 8 can draw in the gas in the shoe cavity above the upper sole 2 and then discharge the gas through the exhaust one-way valve 7, thereby realizing the ventilation function inside the shoe.

[0022] When there are two or more sealed air chambers 6, one of the sealed air chambers 6 is equipped with an exhaust one-way valve 7 and an intake one-way valve 8, and the remaining sealed air chambers 6 are connected to each other by channels 9. The channels 9 are located inside the lower sole 1. When the inflatable air cushion expands and contracts during movement, the sealed air chambers 6 are connected through the channels 9 to ensure that the pressure in each air chamber is balanced after air exchange.

[0023] The upper sole 2 and lower sole 1 are each composed of three fiberboards connected by fiber filaments, with two seams located at the forefoot. This structure facilitates the bending of the forefoot during movement. The upper sole 2 has an openable air intake window 10 with an inflation port, allowing for replacement of the air cushion and ensuring pressure is maintained as needed.

Claims

1. A method for positioning an inflatable air cushion in a shoe sole without adhesive bonding, comprising a lower shoe sole (1), an upper shoe sole (2), and an inflatable air cushion (3), wherein the inflatable air cushion (3) is located within a sealed cavity formed after the lower shoe sole (1) and the upper shoe sole (2) are glued together, characterized in that: Densely spaced fixed posts (4) are provided on the upper surface of the lower sole (1) and the lower surface of the upper sole (2); the inflatable air cushion (3) is a hollow, sealed cavity made of elastic material and is equipped with an inflation valve; the circumferential surface of the inflatable air cushion (3) is made of elastic rubber and elastic fiber, and the upper and lower surfaces of the inflatable air cushion (3) are made of rubber and fiber mesh (5), with some fiber mesh (5) exposed. The exposed fiber mesh (5) corresponds to the fixed posts (4), and the circumference of each fiber mesh hole is larger than the circumference of each fixed post; after the inflatable air cushion (3) is inflated, the exposed fiber mesh (5) and the fixed posts (4) are deeply in contact to form a hook. Under the action of the air cushion tension, the fiber mesh (5) and the fixed posts (4) are tightly connected and do not detach. This achieves glue-free fixation of the inflatable air cushion (3); after the inflatable air cushion (3) deflates and shrinks, the fixing post (4) separates from the fiber mesh (5); the number of inflatable air cushions (3) is at least two. After the inflatable air cushions (3) are inflated and expanded, the tension causes the upper and lower surfaces of each inflatable air cushion (3) without exposed fiber mesh (5) to fit with the corresponding lower sole (1) and upper sole (2) to achieve sealing. A sealed air chamber (6) is formed between each pair of inflatable air cushions (3) or between the air cushion and the side surface connecting the upper and lower soles; the sealed air chamber (6) is provided with an exhaust one-way valve (7) at the side end. The outlet of the exhaust one-way valve (7) extends from the lower sole (1). The sealed air chamber (6) is provided with an air inlet one-way valve (8) at the upper end. The inlet of the air inlet one-way valve (8) extends from the upper sole.

2. The method for positioning an inflatable air cushion in the sole of a shoe without adhesive, as described in claim 1, is characterized in that: The side surface between the lower sole (1) and the upper sole (2) is formed by curing high-strength fibers and plastic materials together.

3. The method for positioning an inflatable air cushion in the sole of a shoe without adhesive, as described in claim 1, is characterized in that: When there are two or more sealed air chambers (6), one of the sealed air chambers (6) is equipped with an exhaust one-way valve (7) and an intake one-way valve (8), and the remaining sealed air chambers (6) are equipped with channels (9) that are connected to each other.

4. The method for positioning an inflatable air cushion in the sole of a shoe without adhesive, as described in claim 3, is characterized in that: The channel (9) is located inside the lower sole (1).

5. The method for positioning an inflatable air cushion in the sole of a shoe without adhesive, as described in claim 1, is characterized in that: The upper sole (2) and lower sole (1) are each composed of three fiberboards connected by fiber filaments, and the two seams are located at the forefoot.

6. The method for positioning an inflatable air cushion in the sole of a shoe without adhesive, as described in claim 5, is characterized in that: The upper sole (2) is provided with an openable air intake window (10) and an inflation port is provided on the air intake window.

7. The method for positioning an inflatable air cushion in the sole of a shoe without adhesive, as described in claim 5, is characterized in that: The lower shoe sole (1) has a rubber layer on the fiberboard surface in contact with the ground.

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