A shoe sole with fast rebound

Abstract

The utility model relates to the related technical field of shoe sole especially relates to a quick rebound shoe sole, including shoe sole upper layer, the lower surface of shoe sole upper layer is bonded with shoe sole midsole layer, the lower surface of shoe sole midsole layer is bonded with arch thickening section, the lower surface of shoe sole midsole layer is bonded with forefoot carbon plate, through adopting modified carbon fiber full palm carbon plate layout, forefoot upwarp and honeycomb open -work, arch sawtooth occlusion, the support column and nitrogen gas bag prepared by collocating PEBAX supercritical fluid foaming process form full palm energy circulation, thereby realize full palm coherent efficient rebound and energy transmission, guarantee the rebound performance and energy utilization efficiency of sports shoes under the sports scene.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, and in particular to a shoe sole with rapid rebound. Background Technology

[0002] In sports scenarios such as long-distance running and marathons, rapid rebound, stable support, and durability are the core performance requirements of sports shoe soles. They are directly related to the efficiency of force exertion, foot protection, and overall comfort during exercise. A high-quality sole needs to achieve a precise match between full-length force distribution and rebound performance, ensuring a rapid rebound response when the forefoot pushes off the ground, while also meeting the needs of efficient cushioning and energy storage when the heel lands. At the same time, it ensures that the arch area receives reliable rigid support and smooth energy conduction, allowing for continuous and efficient energy transfer throughout the entire foot.

[0003] Traditional carbon fiber plates in shoe soles are mostly partial coverage and have poor rebound guidance, resulting in slow forefoot push-off rebound response and poor connection between heel cushioning and rebound.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN213604780U that discloses an ultralight, high-rebound marathon shoe sole structure. The patent states that "the ultralight, high-rebound marathon shoe sole effectively ensures overall stability through carbon fiber sheets on the inner side of the sole's midsole and the connecting layer. The carbon fiber sheets are shovel-shaped carbon plates, and their superior rigidity makes them resistant to twisting. This effectively enhances protection and improves arch stability. Furthermore, the carbon plates also possess excellent toughness, which, combined with their shovel-shaped curvature, allows for rapid recovery after deformation under stress, effectively promoting sole rebound and providing propulsion, thus facilitating use." However, this patent only uses a single shovel-shaped carbon fiber sheet, covering only the arch and heel area, and lacks a carbon plate support and rebound guidance structure in the forefoot. This results in a lack of rigid guidance and resilient rebound assistance from the carbon plate when the forefoot pushes off the ground.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a fast-rebound shoe sole to solve the problems mentioned in the background art, such as the traditional shoe sole carbon plate being mostly partially covered and having poor rebound guidance, resulting in slow forefoot push-off rebound response and poor connection between heel cushioning and rebound.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fast-rebound shoe sole, comprising an upper sole layer, a lower sole layer bonded to the lower surface of the upper sole layer, an arch thickening section bonded to the lower surface of the lower sole layer, a forefoot carbon plate bonded to the lower surface of the lower sole layer, a forefoot support column fixedly installed through both ends of the forefoot carbon plate, an arch carbon plate disposed on the lower surface of the lower sole layer, a heel carbon plate bonded to the lower surface of the lower sole layer, a heel support column fixedly installed through both ends of the heel carbon plate, an air bladder bonded to the upper surface of the heel carbon plate, and a sole connecting layer bonded to the lower surface of the arch carbon plate.

[0008] Preferably, the lower end groove contour of the upper layer of the sole is adapted to the upper outer contour dimension of the lower layer of the sole, the forefoot carbon plate is set as an upward tilted structure, the forefoot carbon plate is provided with honeycomb-shaped hollow holes, and the forefoot support column is set through the hollow holes.

[0009] Preferably, the lower surface of the thickened arch section is provided with serrated protrusions, and the upper surface of the carbon plate of the arch is provided with corresponding serrated grooves.

[0010] Preferably, both the forefoot support column and the heel support column are cylindrical structures, with the lower end of the forefoot support column embedded in the forefoot area of ​​the sole connecting layer, and the lower end of the heel support column embedded in the heel area of ​​the sole connecting layer.

[0011] Preferably, the airbag is configured as a circular structure, and the airbags are evenly distributed in a matrix array above the heel carbon plate.

[0012] Preferably, the sole connecting layer is configured with a hexagonal mesh-like hollow structure, the inner bottom layer of the sole has a longitudinal first ventilation channel running through it, and the inner connecting layer of the sole has a longitudinal second ventilation channel running through it.

[0013] Preferably, an assembly layer is bonded to the lower end of the bottom layer of the sole, the bottom layer of the sole and the sole connecting layer are connected through the assembly layer, and an abrasion-resistant bottom layer is bonded to the lower end of the sole connecting layer.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by adopting a modified carbon fiber full-length carbon plate layout, a 15° upward curve and honeycomb hollowing in the forefoot, and serrated engagement of the arch, combined with support columns and nitrogen airbags prepared by PEBAX supercritical fluid foaming process, a full-length energy cycle is formed, thereby achieving continuous and efficient rebound and energy conduction in the full-length, ensuring the rebound performance and energy utilization efficiency of the sports shoe in sports scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure in which the thickened arch section and the carbon plate of the arch of this utility model cooperate with each other;

[0017] Figure 3 This is a schematic diagram of the interlocking structure of the bottom layer and the assembly layer in the sole of this utility model;

[0018] Figure 4 This is a schematic diagram of the interlocking structure of the sole connecting layer and the wear-resistant sole layer of this utility model.

[0019] In the diagram: 1. Upper outsole; 2. Middle and lower outsole; 3. Arch support section; 4. Forefoot carbon fiber plate; 5. Forefoot support column; 6. Arch support plate; 7. Heel carbon fiber plate; 8. Heel support column; 9. Air bladder; 10. Outsole connecting layer; 11. First ventilation channel; 12. Second ventilation channel; 13. Assembly layer; 14. Abrasion-resistant insole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a fast-rebound shoe sole, including an upper layer 1, a lower layer 2 of the upper layer 1 bonded to the lower surface of the upper layer 1, an arch thickening section 3 bonded to the lower surface of the lower layer 2, a forefoot carbon plate 4 bonded to the lower surface of the lower layer 2, forefoot support columns 5 fixedly installed through both ends of the forefoot carbon plate 4, an arch carbon plate 6 provided on the lower surface of the lower layer 2, a heel carbon plate 7 bonded to the lower surface of the lower layer 2, a heel support column 8 fixedly installed through both ends of the heel carbon plate 7, an airbag 9 bonded to the upper surface of the heel carbon plate 7, and a shoe sole connecting layer 10 bonded to the lower surface of the arch carbon plate 6.

[0022] Furthermore, the lower groove contour of the upper layer 1 of the sole matches the upper outer contour of the lower layer 2 of the sole. The forefoot carbon plate 4 is designed with an upward-curving sloping structure and features honeycomb-shaped perforations. The forefoot support column 5 passes through these perforations. Through the design of the forefoot carbon plate 4, its 15° upward-curving sloping structure precisely matches the natural flexion of the forefoot and the gait trajectory of the push-off during running, providing clear guidance for forefoot rebound and avoiding the rebound dispersion problem caused by traditional partial carbon plates. At the same time, the honeycomb-shaped perforations on the forefoot carbon plate 4 significantly reduce the overall weight of the sole without weakening the structural strength, and also reserve ample space for energy conduction. The shoe features a foot space and a forefoot support column 5 with through-hole perforations. This column is made of modified PEBAX foam material and has through-hole perforations in the forefoot carbon plate 4. The lower end is embedded in the forefoot area of ​​the sole connecting layer 10. Thanks to the low hysteresis of PEBAX material, it can quickly store energy when compressed and release energy instantaneously when deformed and recovering. This works in synergy with the forefoot carbon plate 4 to enhance the rebound and propulsion effect. At the same time, the mid-bottom layer 2 of the sole is made using PEBAX supercritical fluid foaming technology. This technology uses supercritical CO2 fluid as a foaming agent to form a uniform and dense micron-level porous structure in the PEBAX substrate, which has both lightweight properties and excellent elastic recovery ability.

[0023] Furthermore, the lower surface of the arch thickening section 3 is provided with serrated protrusions, and the upper surface of the arch carbon plate 6 is provided with corresponding serrated grooves. Through the setting of the arch carbon plate 6, modified carbon fiber material is selected. With its excellent rigidity and toughness, it can provide reliable structural support for the arch, effectively resist the lateral pressure and longitudinal deformation of the arch during exercise, and prevent the arch from collapsing. It can also maintain shape stability when force is transmitted. At the same time, the arch thickening section 3 uses high-rigidity modified PEBAX supercritical fluid foam material, which can ensure the stability of the arch support and retain a certain elastic deformation capacity.

[0024] Furthermore, both the forefoot support column 5 and the heel support column 8 are cylindrical structures. The lower end of the forefoot support column 5 is embedded in the forefoot area of ​​the sole connecting layer 10, and the lower end of the heel support column 8 is embedded in the heel area of ​​the sole connecting layer 10. Through the setting of the heel support column 8, its cylindrical structure design ensures uniform force distribution and avoids support failure caused by local stress concentration. It has the characteristics of rapid deformation recovery and lasting elasticity, and can flexibly compress and store energy when subjected to force, and can release energy instantly.

[0025] Furthermore, the airbag 9 is designed as a circular structure, and the airbag 9 is evenly distributed in a matrix array above the carbon plate 7 in the heel. With the setting of the airbag 9, when the heel lands, nitrogen is quickly compressed to absorb the vertical impact force. At the same time, the bottom layer 2 of the PEBAX foam sole deforms and cushions simultaneously, greatly reducing the impact of the ground reaction force on the foot.

[0026] Furthermore, the sole connecting layer 10 is designed with a hexagonal mesh-like hollow structure. A first longitudinal ventilation channel 11 is provided through the interior of the bottom layer 2 of the sole, and a second longitudinal ventilation channel 12 is provided through the interior of the sole connecting layer 10. Through the design of the sole connecting layer 10, the sole connecting layer 10 adopts a design that combines PEBAX supercritical fluid foaming with a hexagonal mesh-like hollow structure. Its porous foaming characteristics and hollow structure form a double ventilation channel. Together with the first longitudinal ventilation channel 11 provided through the interior of the bottom layer 2 of the sole and the second longitudinal ventilation channel 12 inside the sole connecting layer 10, a three-dimensional ventilation network is formed. During exercise, the heat generated by the foot is quickly conducted downward through the first ventilation channel 11. The porous structure of PEBAX foaming accelerates the heat dissipation. At the same time, it forms a convection exchange with the external cold air introduced by the second ventilation channel 12, improving the breathability and sweat-wicking performance of the sole and avoiding stuffiness of the feet.

[0027] Furthermore, an assembly layer 13 is bonded to the lower end of the sole middle layer 2. The sole middle layer 2 and the sole connecting layer 10 are connected through the assembly layer 13. The lower end of the sole connecting layer 10 is bonded to a wear-resistant sole 14. Through the setting of the assembly layer 13, its contact surface adopts a serrated interlocking design. Combined with special shoe adhesive, the connection strength of the two-layer structure is greatly improved. This effectively avoids the relative displacement between layers caused by force compression and repeated friction during long-term exercise, ensuring that the installation position of all functional components in the whole shoe is always accurate and the rebound path does not deviate. At the same time, the wear-resistant sole 14 is made of rubber and PEBAX foam composite material, which retains the wear-resistant and anti-slip properties of rubber and uses the elasticity of PEBAX foam to alleviate the impact of grounding, thus extending the overall service life of the sole.

[0028] Working Principle: During exercise, the abrasion-resistant sole 14 first contacts the ground. Its rubber and PEBAX composite material ensures ground stability due to its abrasion-resistant and slip-resistant properties. The ground reaction force and foot pressure are first transferred to the sole connecting layer 10, providing initial cushioning and stress relief. Simultaneously, the three-dimensional breathable network rapidly conducts heat from the foot. When the heel lands, the matrix-distributed airbags 9 quickly compress their internal nitrogen to absorb the vertical impact, simultaneously driving the PEBAX material heel support column 8 to compress and store energy. Due to the low hysteresis and high elastic recovery of the PEBAX material, it can quickly store impact energy. The heel carbon plate 7, with its rigidity, efficiently transfers the cushioning energy stored in the airbags 9 and heel support column 8 to the arch carbon plate 6. At this point, the serrated protrusions on the lower surface of the arch thickening section 3 precisely engage with the corresponding grooves on the upper surface of the arch carbon plate 6, preventing arch collapse through the high-rigidity PEBAX material and utilizing its elastic deformation capability to... Energy is transferred without loss, ensuring a continuous energy conduction path. When the forefoot pushes off the ground, the upward-curving forefoot carbon plate 4 provides rigid guidance in accordance with the gait trajectory. The forefoot support column with perforated holes releases compressed energy. With its instantaneous energy release characteristics, it works in conjunction with the forefoot carbon plate 4 to form a strong propulsive force. At the same time, the mid-bottom layer 2 of the sole, made of PEBAX supercritical fluid foam, undergoes elastic deformation, further assisting in energy storage and release. The energy is conducted in reverse through the arch carbon plate 6 to the heel, completing the full-length energy cycle. The upper layer 1 of the sole precisely fits the upper outer side of the mid-bottom layer 2 of the sole through the lower groove, ensuring a stable connection of the overall structure. The serrated interlocking of the assembly layer 13 prevents relative displacement between the mid-bottom layer 2 of the sole and the sole connecting layer 10, ensuring a precise rebound path. The three-dimensional breathable network continues to play its role. Through the synergy of the first breathable channel, the second breathable channel and the PEBAX foam porous structure, heat is quickly dissipated, keeping the feet dry and comfortable.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fast-rebound sole, comprising an upper layer (1) of the sole, characterized in that: The lower surface of the upper layer (1) of the sole is bonded with the lower layer (2) of the sole, the lower surface of the lower layer (2) of the sole is bonded with the arch thickening section (3), the lower surface of the lower layer (2) of the sole is bonded with the forefoot carbon plate (4), the two ends of the forefoot carbon plate (4) are fixedly installed with forefoot support columns (5), the lower surface of the lower layer (2) of the sole is provided with the arch carbon plate (6), the lower surface of the lower layer (2) of the sole is bonded with the heel carbon plate (7), the two ends of the heel carbon plate (7) are fixedly installed with the heel support columns (8), the upper surface of the heel carbon plate (7) is bonded with the airbag (9), and the lower surface of the arch carbon plate (6) is bonded with the sole connecting layer (10).

2. The quick-rebound sole according to claim 1, characterized in that: The lower end groove contour of the upper layer (1) of the sole is adapted to the upper outer contour dimension of the middle layer (2) of the sole. The forefoot carbon plate (4) is set as an upward tilted structure. The forefoot carbon plate (4) is provided with honeycomb-shaped hollow holes. The forefoot support column (5) is set through the hollow holes.

3. The quick-rebound sole according to claim 1, characterized in that: The lower surface of the thickened arch section (3) is provided with serrated protrusions, and the upper surface of the arch carbon plate (6) is provided with serrated grooves.

4. The quick-rebound sole according to claim 1, characterized in that: Both the forefoot support column (5) and the heel support column (8) are cylindrical structures. The lower end of the forefoot support column (5) is embedded in the forefoot area of ​​the sole connecting layer (10), and the lower end of the heel support column (8) is embedded in the heel area of ​​the sole connecting layer (10).

5. The quick-rebound sole according to claim 1, characterized in that: The airbag (9) is configured as a circular structure, and the airbag (9) is evenly distributed in a matrix array above the heel carbon plate (7).

6. The quick-rebound sole according to claim 1, characterized in that: The sole connecting layer (10) is configured as a hexagonal mesh hollow structure, and the inner bottom layer (2) of the sole is provided with a longitudinal first ventilation channel (11), and the inner bottom layer (10) is provided with a longitudinal second ventilation channel (12).

7. The quick-rebound sole according to claim 1, characterized in that: The bottom layer (2) of the sole is bonded with an assembly layer (13), the bottom layer (2) of the sole is connected to the sole connecting layer (10) through the assembly layer (13), and the bottom layer (10) of the sole is bonded with an abrasion-resistant sole layer (14).

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