Foot arch supporting component suitable for leisure state and running state

Abstract

The invention belongs to the crossing field of foot biomechanics and intelligent wearing, and particularly relates to a foot arch supporting component suitable for two states of leisure and running. An arch supporting part suitable for leisure and running states is provided with a supporting part matched with the arch part, and the supporting part is made of shape memory polyurethane materials, so that the hardness of the supporting part in the running state is larger than that in the leisure state. According to the foot arch supporting part suitable for the leisure state and the running state, the hardness of the supporting part in the running state is larger than that of the supporting part in the leisure state so as to adapt to foot arch deformation differences of the same user in different motion states and different time periods, the defect that a traditional insole with the fixed hardness cannot adapt to dynamic changes is overcome, and the user experience is improved. The sole of a foot can be better attached to the insole, matched supporting force can be provided for the arch of the foot all the time, and foot compensatory injury caused by supporting unbalance is prevented.

Description

Technical Field

[0001] This invention belongs to the interdisciplinary field of foot biomechanics and smart wearables, and specifically relates to an arch support component suitable for both leisure and running. Background Technology

[0002] The pressure and deformation requirements of the arch of the foot vary significantly under different exercise conditions. Most existing arch support insoles are made of fixed-hardness EVA or TPU materials, which cannot adapt to the different arch deformations of the same user under different exercise conditions and at different times. For example, the arch sinks 18%-22% more during walking than during running, and fixed-hardness insoles cannot adjust their support intensity in real time to follow this deformation. This can easily lead to excessive pressure or insufficient support on the arch during exercise, potentially causing foot fatigue, pain, or even sports injuries with long-term use. Furthermore, individual differences in arch height among users are difficult to accommodate, and insoles cannot be adjusted to suit the individual arch height of different users. High arches have a 30%-40% smaller contact area than normal feet, and fixed-structure insoles cannot be personalized for different arch heights, resulting in low fit rates. Some users not only fail to obtain effective support but may also experience increased foot discomfort due to concentrated local pressure. Summary of the Invention

[0003] To address the current technical problem that the insoles cannot be adapted to the different arch deformations of the same user under different sports conditions, nor can they adapt to the individual fit rate of different users' arch heights, this invention provides an arch support component suitable for both leisure and running.

[0004] The specific technical solution of the present invention is as follows: An arch support component suitable for both leisure and running states is provided, which is equipped with a support component that matches the arch of the foot. The support component is made of shape memory polyurethane material, so that the rigidity of the support component is greater in running state than in leisure state.

[0005] The support component has a higher hardness during running than during leisure time. The difference between the hardness of the support component during running and leisure time is between 1 and 15 Shore C hardness. This hardness is achieved by changing the hardness of the shape memory polyurethane material through changes in foot temperature during running.

[0006] The shape memory polyurethane material has a leaf vein-like structure, which constitutes the leaf vein-like structure support component.

[0007] The shape memory polyurethane material has a leaf vein-like mesh structure, which constitutes the leaf vein-like mesh structure support component. The leaf vein-like mesh structure includes main leaf veins, secondary leaf veins, and branch leaf veins.

[0008] The shape memory polyurethane material is a three-dimensional leaf vein-like mesh structure, which consists of at least two layers. The layers of the leaf vein-like mesh structure are connected by the shape memory polyurethane material to form a three-dimensional leaf vein-like mesh structure support component.

[0009] The shape memory polyurethane material has a mesh structure, which constitutes the mesh structure support component; the mesh structure includes three types of mesh holes, namely mesh hole I, mesh hole II and mesh hole III, and the diameter R1 of mesh hole I is greater than the diameter R2 of mesh hole II and the diameter R3 of mesh hole III.

[0010] The shape memory polyurethane material has a three-dimensional mesh structure with at least two layers. The layers of the three-dimensional mesh structure are connected by the shape memory polyurethane material to form a three-dimensional mesh structure support component.

[0011] The shape memory polyurethane material is embedded in the arch area of ​​the insole body.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention provides an arch support component suitable for both leisure and running. The support component has a higher hardness during running than during leisure, adapting to the different arch deformations of the same user under different exercise conditions and at different times. This overcomes the shortcomings of traditional fixed-hardness insoles, which cannot adapt to dynamic changes. It allows the sole of the foot to fit the insole more closely and can always provide matched support to the arch, preventing compensatory foot injuries caused by support imbalance. Fixed-hardness insoles, due to their inability to adapt to the dynamic deformation of the arch over long-term use, are prone to excessive wear in high-frequency stress areas (such as the apex of the arch). Insoles that can adapt to the different arch deformations can adjust the support points and stress distribution, making the wear more even, thereby extending the overall service life and reducing the frequency and cost of replacement for users. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the shape memory polyurethane material with a leaf vein-like grid structure embedded in the arch area of ​​the insole body according to the present invention.

[0014] Figure 2 This is a schematic diagram of the shape memory polyurethane material with a mesh structure embedded in the arch area of ​​the insole body according to the present invention.

[0015] Figure 3 This is a graph showing the measurement results of foot pressure distribution in traditional insoles.

[0016] Figure 4 This is a diagram showing the measurement results of the foot pressure distribution of the insole formed by embedding shape memory polyurethane material into the arch part of the insole body in this invention.

[0017] Among them, 1 is the insole body; 2 is the support component; and 21 is the shape memory polyurethane material. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0019] An arch support component suitable for both leisure and running states is provided, comprising a support component 2 that matches the arch area. The support component is made of shape memory polyurethane material 21, which makes the support component harder in running state than in leisure state, so as to adapt to the differences in arch deformation of the same user in different sports states and at different times.

[0020] The support component 2 has a higher hardness during running than during leisure time. The difference between the hardness of the support component 2 during running and leisure time is between 1 and 15 Shore C hardness. This hardness is achieved by the change in the hardness of the shape memory polyurethane material through the change in foot temperature during running. Studies have shown that the foot temperature shows a significant increasing trend during running.

[0021] like Figure 1 As shown, the shape memory polyurethane material 21 has a leaf vein-like structure, which constitutes the leaf vein-like structure support component. Setting the shape memory polyurethane material into a leaf vein-like structure can distribute the pressure at the arch of the foot more evenly and effectively.

[0022] To promote air circulation inside the shoe, the shape memory polyurethane material 21 has a leaf vein-like mesh structure, which constitutes the leaf vein-like mesh structure support component 2. The leaf vein-like mesh structure includes main leaf veins, secondary leaf veins and branch leaf veins.

[0023] To further distribute pressure on the arch of the foot and promote air circulation inside the shoe, the shape memory polyurethane material 21 is a three-dimensional leaf vein-like mesh structure. The three-dimensional leaf vein-like mesh structure has at least two layers, and the layers of the leaf vein-like mesh structure are connected by the shape memory polyurethane material 21 to form a three-dimensional leaf vein-like mesh structure support component 2.

[0024] like Figure 2 As shown, the shape memory polyurethane material 21 can also be a mesh structure, forming a mesh structure support component 2; the mesh structure includes three types of mesh holes, namely mesh hole I, mesh hole II and mesh hole III, and the diameter R1 of mesh hole I > the diameter R2 of mesh hole II > the diameter R3 of mesh hole III; through the optimized setting of the mesh holes, the smaller diameter mesh holes provide support for the sole of the foot, and the larger diameter mesh holes achieve the lightweighting of the insole.

[0025] To further distribute pressure on the arch of the foot and promote air circulation inside the shoe, the shape memory polyurethane material 21 can be a three-dimensional mesh structure with at least two layers. The layers of the three-dimensional mesh structure are connected by the shape memory polyurethane material 21 to form a three-dimensional mesh structure support component.

[0026] To accommodate the varying arch deformation of the same user under different exercise conditions and at different times, the shape memory polyurethane material 21 is embedded in the arch portion of the insole body 1. When the user walks while wearing the insole body 1, the temperature of the insole body T < 35℃, and the hardness of the shape memory polyurethane material 21 embedded in the arch portion of the insole body 1 remains unchanged. When the user runs while wearing the insole body 1, the temperature of the insole body T ≥ 35℃, and the hardness of the shape memory polyurethane material 21 embedded in the arch portion of the insole body 1 increases from Shore C hardness 25 degrees to Shore C hardness 40 degrees, providing support for the arch portion. During exercise, the arch experiences significant force, and this material can precisely enhance support, preventing foot injuries caused by excessive arch collapse or localized pressure concentration.

[0027] The shape memory polyurethane material 21 is manufactured by 3D printing.

[0028] The shape memory polyurethane material 21 is embedded in the arch portion of the insole body 1 by pressing a groove in the arch portion of the insole body 1 with a hot press mold, aligning the shape memory polyurethane material 21 with the groove, and then applying pressure to cure it.

[0029] Foot pressure distribution measurements were conducted on individuals with high arches using both traditional insoles and an insole designed for both leisure and running, in which an arch support component suitable for both casual and running conditions is embedded in the arch portion of the insole body. Figure 3 The image shows the measurement results of foot pressure distribution in traditional insoles. Figure 4 The image shows the measurement results of foot pressure distribution in an insole with an arch support component embedded in the arch section of the insole body, suitable for both leisure and running. The results indicate that traditional insoles fail to provide adequate support for people with high arches, resulting in insufficient pressure on the arch and greater pressure on the forefoot and heel. The insole provided by this invention, which embeds shape memory polyurethane material into the arch section of the insole body, dynamically adjusts the hardness of the insole's arch section based on changes in foot temperature, distributing foot pressure and allowing for a better fit between the foot and the insole, thus consistently providing appropriate support for the arch.

[0030] In summary, this invention provides an arch support component suitable for both leisure and running. The support component has a higher stiffness during running than during leisure, adapting to the varying arch deformation of the same user under different exercise conditions and at different times. This overcomes the shortcomings of traditional fixed-hardness insoles, which cannot adapt to dynamic changes. It allows for a closer fit between the foot and the insole, consistently providing matched support to the arch and preventing compensatory foot injuries caused by support imbalance. Fixed-hardness insoles, due to their inability to adapt to the dynamic deformation of the arch over long-term use, are prone to excessive wear in high-frequency stress areas (such as the apex of the arch). Insoles that adapt to varying arch deformation can adjust support points and stress distribution, resulting in more even wear, thereby extending overall lifespan and reducing replacement frequency and costs for users.

[0031] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An arch support component suitable for both leisure and running, characterized in that, A support component is provided to fit the arch of the foot. The support component is made of shape memory polyurethane material, which makes the support component more rigid during running than during leisure.

2. The arch support component suitable for both leisure and running as described in claim 1, characterized in that, The support component has a higher hardness during running than during leisure time. The difference between the hardness of the support component during running and leisure time is between 1 and 15 Shore C hardness. This hardness is achieved by changing the hardness of the shape memory polyurethane material through changes in foot temperature during running.

3. The arch support component suitable for both leisure and running as described in claim 2, characterized in that, The shape memory polyurethane material has a leaf vein-like structure, which constitutes the leaf vein-like structure support component.

4. The arch support component suitable for both leisure and running as described in claim 3, characterized in that, The shape memory polyurethane material has a leaf vein-like mesh structure, which constitutes the leaf vein-like mesh structure support component. The leaf vein-like mesh structure includes main leaf veins, secondary leaf veins, and branch leaf veins.

5. The arch support component suitable for both leisure and running as described in claim 4, characterized in that, The shape memory polyurethane material is a three-dimensional leaf vein-like mesh structure, which consists of at least two layers. The layers of the leaf vein-like mesh structure are connected by the shape memory polyurethane material to form a three-dimensional leaf vein-like mesh structure support component.

6. The arch support component suitable for both leisure and running as described in claim 2, characterized in that, The shape memory polyurethane material has a mesh structure, which constitutes the mesh structure support component; the mesh structure includes three types of mesh holes, namely mesh hole I, mesh hole II and mesh hole III, and the diameter R1 of mesh hole I is greater than the diameter R2 of mesh hole II and the diameter R3 of mesh hole III.

7. The arch support component suitable for both leisure and running as described in claim 6, characterized in that, The shape memory polyurethane material has a three-dimensional mesh structure with at least two layers. The layers of the three-dimensional mesh structure are connected by the shape memory polyurethane material to form a three-dimensional mesh structure support component.

8. The application of an arch support component suitable for both leisure and running as described in any one of claims 1-7, characterized in that, The shape memory polyurethane material is embedded in the arch area of ​​the insole body.

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