Shoe with dynamic wrapping

Abstract

This utility model discloses a shoe with dynamic wrapping properties, including a sole, an upper, and an air bladder layer. The sole and upper are integrally molded. The air bladder layer includes an outer edge and a top wall and a bottom wall opposite each other on both sides of the outer edge. The bottom wall is fitted to the side of the sole facing the foot, and the outer edge is fitted to the upper near the sole. The top wall and the upper enclose a shoe cavity, which can deform towards the foot or the sole to adjust the space of the shoe cavity. By making the sole and upper integrally molded, a cavity for accommodating the air bladder layer is formed, providing a framework for the stable fit of the air bladder layer. The air bladder layer is pre-filled with gas pressure, forming an elastic energy storage system. Because the bottom wall and outer edge of the air bladder layer are fitted to the upper, the restoring force generated by the gas pressure acts extensively on the top wall, driving the top wall to deform, thereby adjusting the space of the shoe cavity. This allows the shoe to provide an adaptive dynamic wrapping force for the foot, and eliminates the need for shoelaces.

Description

Technical Field

[0001] This utility model relates to the field of footwear, and more particularly to a footwear with dynamic wrapping properties. Background Technology

[0002] Traditional athletic shoes are usually assembled from multiple parts, including separate soles and uppers. The uppers need to be glued or sewn together with the outsole. This manufacturing process is complex and prone to glue coming undone, which weakens the overall fit of the shoe.

[0003] Furthermore, the lacing system relies on manual adjustment, making it unable to sense and respond to dynamic changes in the foot in real time during exercise. This results in the shoe maintaining only an initial static fit, unable to achieve continuous adaptive adjustment. While this static fit provides a certain degree of comfort initially, the variable gaps created by frequent lacing loosening during exercise not only cause the foot to slide inside the shoe, increasing friction and causing imbalances in localized pressure distribution, but also directly weaken stability, acceleration response, and anti-torsion capabilities during exercise. Moreover, the tight lacing area hinders airflow, exacerbating heat buildup and reducing comfort and athletic performance.

[0004] Although existing technologies have introduced shoelace tightening devices to solve the problem of loosening, such solutions essentially simulate dynamic adjustment by adding mechanical structures. However, due to the additional weight, increased structural complexity, and the need for frequent mechanical adjustments, they not only fail to eliminate the root cause of loosening shoelaces, but also cause the dynamic fit between the shoe and the foot to be interfered with by rigid components, resulting in the fit not being able to truly adapt during exercise.

[0005] Therefore, existing athletic shoes lack sufficient support and cannot adaptively adjust their support according to the dynamic changes in the foot during exercise. This results in insufficient stability, response speed, and anti-twist ability during exercise, which in turn affects athletic performance and poses a potential risk of injury. Utility Model Content

[0006] The purpose of this invention is to provide a shoe with dynamic support, by incorporating an airbag layer within a one-piece molded sole and upper, causing the size of the shoe cavity to continuously change, thus providing dynamic support for the foot. The specific technical solution is as follows: A shoe with dynamic wrapping features includes a sole, an upper, and an air bladder layer. The sole and upper are integrally molded. The air bladder layer includes an outer edge and a top wall and a bottom wall opposite to each other on both sides of the outer edge. The bottom wall fits against the side of the sole facing the foot. The outer edge fits against the upper near the sole. The top wall and the upper enclose to form a shoe cavity. The top wall can deform in the direction of the foot or the sole to adjust the space of the shoe cavity.

[0007] Furthermore, the airbag layer includes an airbag unit.

[0008] Furthermore, the airbag layer includes multiple airbag units, which are interconnected.

[0009] Furthermore, the airbag layer includes multiple airbag units, each of which is independently configured.

[0010] Furthermore, the airbag layer includes a first airbag unit and a second airbag unit, and the sole includes a forefoot area and a heel area that are disposed opposite to each other. The first airbag unit is disposed corresponding to the forefoot area, and the second airbag unit is disposed corresponding to the heel area.

[0011] Furthermore, different gas pressures are set within each airbag unit.

[0012] Furthermore, an airtight membrane is installed inside the airbag unit, and the airbag unit is made of modified thermoplastic polyurethane.

[0013] Furthermore, the upper consists of a toe section, a midsection, and a heel section connected in sequence. The toe section is made of spandex yarn and hot melt yarn, the midsection uses a mechanically wrapped yarn structure, and the heel section uses an air-wrapped yarn structure.

[0014] Furthermore, it also includes an abrasion-resistant layer, which is located on the side of the sole facing the ground and includes several spaced anti-slip parts.

[0015] Furthermore, the abrasion-resistant layer and the sole are designed as a single molded structure, with the abrasion-resistant layer having a thickness of 0.1mm to 2mm.

[0016] The shoe with dynamic wrapping feature of this invention has the following advantages: 1. By making the sole and upper a one-piece molded structure, a chamber is formed to house the air bladder layer, providing a framework for the stable fit of the air bladder layer. The air bladder layer is pre-filled with gas pressure to form an elastic energy storage system. Since the bottom wall and outer edge of the air bladder layer are fitted to the upper, the restoring force generated by the gas pressure will act on the top wall in large quantities, driving the top wall to deform, thereby adjusting the shoe cavity space and making the shoe body form an adaptive dynamic wrapping force for the foot, without the need for shoelaces. 2. The airbag layer includes a first airbag unit and a second airbag unit. The first airbag unit is set in the forefoot area, and the second airbag unit is set in the heel area. The forefoot is responsible for generating force during the push-off phase and needs to deform quickly to obtain cushioning. The heel needs stable support in the initial stage of landing. The first airbag unit and the second airbag unit are set independently to form regional dynamic wrapping for the force characteristics of the forefoot area and the heel area. 3. The first and second airbag units are equipped with different gas pressures to provide stable wrapping and support according to the different needs of the forefoot and heel during the movement. 4. The airtight membrane and modified thermoplastic polyurethane form a dual sealing system to ensure that the gas pressure in the airbag unit does not decrease throughout the entire movement, thus avoiding failure of the wrapping due to pressure reduction. 5. The toe area is made of spandex and hot-melt yarn, which allows the upper to deform synchronously when the top wall of the air bladder is compressed in the forefoot area, preventing excessive deformation of the upper during exercise and thus preventing the fit from failing. The midfoot uses a mechanically wrapped yarn structure to prevent the foot from sliding laterally during exercise and to evenly transfer the fit force to the arch. The heel uses an air-wrapped yarn structure to significantly improve breathability. When the foot hits the ground, the shoe cavity expands at the heel to promote heat dissipation, and when the foot is lifted, the shoe cavity contracts at the heel to enhance the fit. Attached Figure Description

[0017] Figure 1 This is a perspective view of the shoe with dynamic wrapping function according to this utility model.

[0018] Figure 2 This is a side view of the shoe with dynamic wrapping function according to this utility model.

[0019] Figure 3 This is a schematic diagram of the overall airbag layer in the shoe with dynamic wrapping function of this utility model.

[0020] Figure 4 This is a schematic diagram of multiple airbag layers in the dynamically wrapping shoe of this utility model.

[0021] Figure 5 This is a schematic diagram of the wear-resistant layer in the shoe with dynamic wrapping properties according to this utility model. Detailed Implementation

[0022] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a detailed account of the shoe with dynamic wrapping properties.

[0023] like Figure 1As shown, the present invention provides a shoe with dynamic wrapping properties, comprising a sole 10, an upper 20, and an air bladder layer 30. The sole 10 and the upper 20 are integrally formed using a one-piece knitting molding technology. An air bladder layer 30 is provided on the side of the sole 10 facing the foot. The air bladder layer 30 is located within the space enclosed by the sole 10 and the upper 20, and has the basic shape of a midsole. The air bladder layer 30 includes an outer edge, and a top wall 31 and a bottom wall respectively disposed on both sides of the outer edge. The bottom wall is attached to the side of the sole 10 facing the foot, and the outer edge is attached to the upper 20 near the sole 10. The attachment can be achieved by snap-fit ​​or adhesive bonding. The top wall 31 and the upper 20 enclose a shoe cavity for accommodating the human foot. The air bladder layer 30 has gas pressure inside. When the top wall 31 of the air bladder layer 30 is subjected to dynamically changing pressure applied by the foot, the top wall can deform in the direction of the foot or the sole 10, thereby adjusting the space of the shoe cavity. Understandably, the pressure exerted on the top wall 31 by the human foot during movement changes continuously. Consequently, the top wall 31, in conjunction with the integrated sole 10 and upper 20, causes the size of the shoe cavity to change continuously, resulting in a dynamic wrapping effect on the human foot.

[0024] It is important to note that the shoe with dynamic wrapping of this invention forms a cavity for accommodating the airbag layer 30 by making the sole 10 and the upper 20 an integral molded structure. This provides a framework for the stable fit of the airbag layer 30. The airbag layer 30 is pre-filled with gas pressure to form an elastic energy storage system. Since the bottom wall and outer edge of the airbag layer 30 are fitted to the upper 20, the deformation range of the bottom wall and outer edge is limited. When the foot applies dynamic pressure to the top wall 31 of the airbag layer 30 during exercise, the restoring force generated by the gas pressure will act on the top wall 31 in large quantities, that is, drive the top wall 31 to rebound towards the upper 20, thereby compressing the shoe cavity space and making the shoe body form an adaptive dynamic wrapping force for the foot.

[0025] In summary, the present invention features a dynamically wrapping shoe with a real-time feedback closed-loop response mechanism based on pressure and deformation. When the foot leaves the ground, the pressure applied to the foot decreases, causing the top wall 31 to recover its deformation and reducing the shoe cavity space. The upper 20 and the top wall 31 gradually increase the pressure on the foot and wrap the foot relatively evenly, ensuring foot stability. When the foot touches the ground, the pressure applied to the foot increases, causing the top wall 31 to be compressed, increasing the shoe cavity space. The upper 20 is in a relatively relaxed state. After the shoe cavity expands, it provides gap space to facilitate foot relaxation and heat dissipation. When the pressure decreases, it ensures that the size of the shoe cavity always precisely matches the dynamic shape of the foot.

[0026] Furthermore, such as Figure 3As shown, the airbag layer 30 is designed as a single, integral structure, comprising a complete airbag unit. This eliminates the seams connecting separate airbags, ensuring a completely uniform distribution of gas pressure within the airbag layer 30. This avoids the risk of uneven pressure or localized leakage caused by multiple seams in separate airbags, and ensures that the restoring force generated by the gas pressure is efficiently transmitted to the top wall 31. The deformation restoring force of the airbag layer 30 can then be applied instantaneously and evenly to the entire foot through the top wall 31, resulting in a more linear change in foot support. Furthermore, the integral structure of the airbag layer 30 simplifies the production process, making inflation and deflation convenient and easy to operate.

[0027] Furthermore, the airbag layer 30 includes multiple airbag units, which are interconnected via connecting tubes. These units are also internally connected, forming a zoned elastic network. When pressure is applied to the foot during movement, the airbag units in different areas can deform independently according to local pressure changes. Simultaneously, the connecting tubes facilitate rapid and balanced pressure transmission, ensuring precise matching between changes in the shoe cavity space and the dynamic shape of the foot. This structural design transforms the complex local pressure distribution during foot movement, such as forefoot contact, arch elevation, and heel rebound, into a multi-point coordinated response, improving the accuracy of dynamic support.

[0028] Furthermore, the airbag layer 30 includes multiple airbag units, each of which is independently configured. When local pressure is applied to the foot during exercise, each airbag unit only responds to the pressure change in its own coverage area, without relying on gas transmission or system balancing, thereby realizing a regionalized response mechanism. Each airbag unit dynamically wraps the foot in different areas. This configuration can convert the biomechanical distribution of dynamic pressure on the foot into the independent response logic of the airbag unit, and the wrapping force is always dynamically adjusted locally according to the change in local pressure.

[0029] Preferred, such as Figure 4 As shown, the airbag layer 40 includes a first airbag unit 41 and a second airbag unit 42. The sole 10 includes a forefoot area, a midfoot area, and a heel area connected in sequence. The first airbag unit 41 is set in the forefoot area, and the second airbag unit 42 is set in the heel area. The forefoot is responsible for generating force during the push-off phase and needs to deform quickly to obtain cushioning. The heel needs stable support in the initial stage of landing. The first airbag unit 41 and the second airbag unit 42 are set independently to form a regional dynamic wrapping for the force characteristics of the forefoot area and the heel area.

[0030] Preferably, the first airbag unit 41 and the second airbag unit 42 are provided with different gas pressures. According to the different needs of the forefoot and heel during the exercise, the gas pressure of the first airbag unit 41 can be set to be less than the gas pressure of the second airbag unit 42. The lower pressure causes the shoe cavity in the forefoot area to expand and form a heat dissipation channel, while the higher pressure causes the shoe cavity in the heel area to expand slowly and form a stable wrap and support.

[0031] It is understood that those skilled in the art can set up more than two airbag units according to actual needs. Each airbag unit can be set with different gas pressures according to the functional requirements of its area, so as to achieve precise control of adaptive wrapping and enhance the stability and comfort of the foot.

[0032] Furthermore, an airtight membrane is installed inside the airbag unit. As an internal structure of the airbag unit, the airtight membrane acts as a barrier, completely blocking gas leakage paths such as micropores and seams, ensuring that the internal gas pressure remains constant during long-term movement. The airbag unit is made of modified thermoplastic polyurethane material. By adding nano-reinforcing agents or crosslinking agents to existing thermoplastic polyurethane, the modified thermoplastic polyurethane material is obtained, giving the airbag unit higher gas barrier properties while maintaining a high elastic modulus. Thus, the airtight membrane and the modified thermoplastic polyurethane form a double sealing system, ensuring that the gas pressure inside the airbag unit does not decrease throughout the entire movement, avoiding failure of the wrapping function due to pressure reduction.

[0033] Preferred, such as Figure 2 As shown, the upper 20 is integrally formed using a horizontal knitting technique. The upper 20 includes a toe section 21, a midsection 22, and a heel section 23 connected sequentially. The toe section 21 corresponds to the toes of the human foot, the midsection 22 corresponds to the inner and outer sides of the instep, and the heel section 23 surrounds the heel. The toe section 21 is made of spandex and hot-melt yarn. The spandex has high elasticity, allowing the upper 20 to deform synchronously when the top wall 31 of the air bladder layer 30 is compressed in the forefoot area. The hot-melt yarn melts and fixes the contour of the upper 20 after knitting, preventing the upper 20 from deforming during exercise. Excessive deformation leads to failure of the fit; the midsection 22 adopts a mechanically wrapped yarn structure to form a three-dimensional support structure, preventing the foot from sliding laterally during movement, and providing a rigid frame for the response of the airbag layer 30 in the arch area, thereby evenly transmitting the fit force to the arch. The heel 23 adopts an air-wrapped yarn structure, which forms microporous channels between the yarns, significantly improving breathability. The breathable material, together with the airbag layer 30, compresses and rebounds in the heel area. When the foot hits the ground, the shoe cavity expands and the heel 23 promotes heat dissipation, and when the foot is lifted, the shoe cavity contracts and the heel 23 enhances the fit.

[0034] Furthermore, such as Figure 5As shown, the shoe also includes an abrasion-resistant layer, which is located on the side of the sole 10 facing the ground. The abrasion-resistant layer includes several spaced anti-slip parts 50 to reduce the overall weight of the shoe. The anti-slip parts 50 provide stable support when in contact with the ground, preventing deformation of the sole 10 from affecting the shoe cavity space. The anti-slip parts 50 can be applied to the sole 10 by polyurea spraying, latex impregnation, or bonding, etc., that is, the abrasion-resistant layer and the sole 10 are integrated into a single molded structure. The thickness of the abrasion-resistant layer is 0.1mm to 2mm to achieve overall shoe lightweighting.

[0035] The shoe with dynamic wrapping feature of this invention has the following advantages: 1. By making the sole and upper a one-piece molded structure, a chamber is formed to house the air bladder layer, providing a framework for the stable fit of the air bladder layer. The air bladder layer is pre-filled with gas pressure to form an elastic energy storage system. Since the bottom wall and outer edge of the air bladder layer are fitted to the upper, the restoring force generated by the gas pressure will act on the top wall in large quantities, driving the top wall to deform, thereby adjusting the shoe cavity space and making the shoe body form an adaptive dynamic wrapping force for the foot, without the need for shoelaces. 2. The airbag layer includes a first airbag unit and a second airbag unit. The first airbag unit is set in the forefoot area, and the second airbag unit is set in the heel area. The forefoot is responsible for generating force during the push-off phase and needs to deform quickly to obtain cushioning. The heel needs stable support in the initial stage of landing. The first airbag unit and the second airbag unit are set independently to form regional dynamic wrapping for the force characteristics of the forefoot area and the heel area. 3. The first and second airbag units are equipped with different gas pressures to provide stable wrapping and support according to the different needs of the forefoot and heel during the movement. 4. The airtight membrane and modified thermoplastic polyurethane form a dual sealing system to ensure that the gas pressure in the airbag unit does not decrease throughout the entire movement, thus avoiding failure of the wrapping due to pressure reduction. 5. The toe area is made of spandex and hot-melt yarn, which allows the upper to deform synchronously when the top wall of the air bladder is compressed in the forefoot area, preventing excessive deformation of the upper during exercise and thus preventing the fit from failing. The midfoot uses a mechanically wrapped yarn structure to prevent the foot from sliding laterally during exercise and to evenly transfer the fit force to the arch. The heel uses an air-wrapped yarn structure to significantly improve breathability. When the foot hits the ground, the shoe cavity expands at the heel to promote heat dissipation, and when the foot is lifted, the shoe cavity contracts at the heel to enhance the fit.

[0036] The terms “above,” “below,” and “within” as used above include the number itself; the terms “exceeding” and “excluding” do not include the number itself.

[0037] 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.

[0038] 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 shoe with dynamic wrapping properties, characterized in that, It includes a sole, an upper, and an air bladder layer. The sole and upper are designed as a single molded structure. The air bladder layer includes an outer edge, and a top wall and a bottom wall that are positioned opposite each other on both sides of the outer edge. The bottom wall is attached to the side of the sole facing the foot, and the outer edge is attached to the upper near the sole. The top wall and the upper enclose the shoe cavity. The top wall can deform in the direction of the foot or the sole to adjust the space of the shoe cavity.

2. The shoe with dynamic wrapping of claim 1, wherein, The airbag layer comprises an airbag unit.

3. The shoe with dynamic wrapping of claim 1, wherein, The airbag layer comprises multiple airbag units, which are interconnected.

4. The shoe with dynamic wrapping of claim 1, wherein, The airbag layer comprises multiple airbag units, each of which is set up independently.

5. The shoe with dynamic wrapping of claim 4, wherein, The airbag layer includes a first airbag unit and a second airbag unit. The sole includes a forefoot area and a heel area that are arranged opposite to each other. The first airbag unit is arranged corresponding to the forefoot area, and the second airbag unit is arranged corresponding to the heel area.

6. The shoe with dynamic wrapping according to claim 4 or 5, characterized in that, Each airbag unit is equipped with a different gas pressure.

7. The shoe with dynamic wrapping of any of claims 2 to 5, wherein, An airtight membrane is installed inside the airbag unit, and the airbag unit is made of modified thermoplastic polyurethane.

8. The shoe with dynamic wrapping properties as described in any one of claims 1 to 5, characterized in that, The upper consists of a toe section, a midsection, and a heel section connected in sequence. The toe section is made of spandex and hot melt yarn, the midsection uses a mechanically wrapped yarn structure, and the heel section uses an air-wrapped yarn structure.

9. The shoe with dynamic wrapping of any of claims 1 to 5, wherein, It also includes an abrasion-resistant layer, which is located on the side of the sole facing the ground and includes several spaced anti-slip sections.

10. The shoe with dynamic wrapping of claim 9, wherein, The abrasion-resistant layer and the sole are designed as a single molded structure, with the abrasion-resistant layer thickness ranging from 0.1mm to 2mm.

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