An arch support insole

Abstract

This utility model provides an arch support insole, including a contact base layer, an elastic plate layer disposed on the contact base layer, and a U-shaped support layer disposed between the contact base layer and the elastic plate layer. The contact base layer has a U-shaped placement groove. When the insole is placed in the shoe for wearing, the U-shaped support layer can support the medial and lateral longitudinal arches of the foot. During exercise and walking, it can provide support for the arch. When the foot presses down, the space formed in the middle of the U-shaped support layer can buffer the downward pressure on the arch, reducing the discomfort caused by an overly hard arch support plate. Furthermore, the elastic plate layer and the contact base layer provide resilience and softness during exercise and walking. Compared with traditional one-piece insoles, it has the characteristics of softness, support, cushioning, and resilience, improving the rebound effect of the insole.

Description

Technical Field

[0001] This utility model relates to the field of insole technology, specifically to an insole for arch support. Background Technology

[0002] Insoles are hygienic products placed inside shoes and under the soles of the feet. They are mainly used for cushioning, warmth, sweat protection, and height enhancement. When wearing shoes with insoles, the softness and comfort of the feet can be improved, reducing foot pain caused by hard soles.

[0003] To improve the user experience, many insoles use a one-piece molding process with sponge or EVA materials to enhance the softness of the sole, thus improving foot comfort when stepping on it. Some insoles also have a support plate at the arch, which can disperse some of the impact force from the ground when walking or jumping. Arch support also helps maintain foot balance and reduces instability caused by foot shape issues. However, most current insoles only focus on softness and arch support, using a one-piece molding process with sponge or EVA materials, which makes it difficult to improve the insole's rebound effect. Utility Model Content

[0004] The purpose of this invention is to provide an arch support insole that addresses the shortcomings and deficiencies of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an arch support insole, comprising a contact base layer, an elastic plate layer disposed on the contact base layer, and a U-shaped support layer disposed between the contact base layer and the elastic plate layer. The contact base layer has a U-shaped placement groove for placing the U-shaped support layer. The elastic plate layer is fixed to the contact base layer by molding, bonding, or pressing. The elastic plate layer fixes the U-shaped support layer in the U-shaped placement groove. The contact base layer and the U-shaped placement groove are integrally formed.

[0006] A further improvement is that the contact base layer includes a sponge layer and an EVA layer, an elastic plate layer is fixed on the EVA layer, a U-shaped placement groove is opened on the EVA layer, the elastic plate layer fixes the U-shaped support layer in the U-shaped placement groove, the sponge layer and the EVA layer are fixedly connected by molding, bonding or pressing, and the EVA layer and the U-shaped placement groove are integrally formed.

[0007] A further improvement is that the elastic plate layer is a TPU layer or a nylon elastomer layer.

[0008] A further improvement is that the U-shaped support layer is a nylon sheet or a carbon fiber sheet.

[0009] A further improvement is that a heel groove is provided on the contact base layer and the elastic plate layer, the heel groove is located inside the U-shaped placement groove, and a heel buffer block is provided on the contact base layer within the heel groove.

[0010] A further improvement is that the heel buffer block is a rubber block, a silicone block, a TPE elastic block, or a polyamide elastomer.

[0011] A further improvement is that a connecting groove is provided on the elastic plate at the end where the metatarsal and phalangeal bones are located, and a buffer pad is provided on the contact base layer within the connecting groove.

[0012] A further improvement is that the buffer pad is an EVA pad, a sponge pad, a silicone pad, or a rubber pad.

[0013] A further improvement is that: the contact base layer has several first arc grooves at the metatarsal and phalangeal ends, the buffer pad has several second arc grooves, and a buffer ball is provided between the buffer pad and the contact base layer and within the first and second arc grooves.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When the insole is placed inside the shoe for wearing, the U-shaped support layer can support the inner and outer longitudinal arches of the foot. During exercise and walking, it can provide support for the arch of the foot. When the foot presses down, the space formed in the middle of the U-shaped support layer can buffer the downward pressure on the arch, reducing the discomfort caused by the arch support plate being too hard. In addition, the elastic plate layer and the contact base layer provide resilience and softness during exercise and walking. Compared with the traditional one-piece insole, it has the characteristics of softness, support, cushioning and rebound, improving the rebound effect of the insole.

[0015] Further benefits: Traditional insoles that are directly made of sponge or EVA only take into account the characteristics of softness or cushioning, and it is difficult to have the characteristics of softness, support, cushioning and rebound.

[0016] Further benefits: Under high-frequency exercise conditions, insoles with good rebound performance can provide a rebound effect during reciprocating bending, reducing fatigue in the forefoot and improving the reaction speed of explosive movements such as jumping and turning.

[0017] Further benefits: The U-shaped support layer supports the medial and lateral longitudinal arches, helping to correct poor gait, promote normal walking patterns, and reduce the impact of gait abnormalities on the knees and spine. For athletes, contralateral arch support can improve comfort and stability during exercise, evenly distribute foot pressure, reduce the burden on the arch, thereby alleviating pain caused by arch collapse, reducing the risk of sports injuries, improving athletes' balance and control, reducing foot pressure and fatigue, and thus improving athletic endurance.

[0018] Further benefits: In the insole production process, the sponge layer, EVA layer, U-shaped support layer, and TPU layer only need to be produced separately. The sponge layer and EVA layer are then bonded or hot-pressed to fix them. The U-shaped support layer is placed in the U-shaped placement groove for positioning, which can prevent misplacement of the U-shaped support layer, improve the ease of installation and positioning accuracy. Then, the TPU layer is fixed to the EVA layer by molding, bonding, or pressing, thereby fixing the U-shaped support layer to the insole. The production process is relatively simple.

[0019] Further benefits: The sponge layer provides softness to the soles of the feet when worn, while the EVA layer provides softness and cushioning while also offering some rebound.

[0020] Further benefits: This application sets up TPU, sponge and EVA layers in layers. Compared with the traditional method of directly setting a single layer of material, it can simultaneously have the functions of softness, cushioning and rebound. The soft and cushioning sponge and EVA layers are set at the position that contacts the sole of the foot, which reduces the discomfort caused by the sole of the foot directly contacting the TPU layer. When the forefoot of the insole bends and deforms during walking, the rebound effect of the insole is accelerated by the properties of TPU itself.

[0021] Further benefits: The heel cushioning block can improve the cushioning effect and softness of the heel area, reduce the pressure on the heel area of ​​the shoe, and effectively cushion the pressure on the knee cartilage.

[0022] Further benefits: During exercise, the reaction force from the ground is transmitted upward through the feet. At this time, the cushioning pad can reduce the pressure of the reaction force on the metatarsals and surrounding soft tissues, thereby reducing the occurrence of metatarsal and phalangeal injuries.

[0023] Further effects: After the buffer pad is fixed to the contact base layer, the setting of the buffer ball will cause a slight bulge in the metatarsal and phalangeal bones. While the buffer pad reduces the pressure of the reaction force on the metatarsal bones and surrounding soft tissues, the compression of the buffer ball can further improve the buffering effect and enhance the protection of the metatarsal and phalangeal bones. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a bottom view of the U-shaped support layer, U-shaped placement groove, and EVA layer in this utility model;

[0027] Figure 3 This is a front view of the present invention;

[0028] Figure 4 This is a cross-sectional view of the EVA layer, buffer pad, first arc groove, second arc groove, and buffer sphere in this utility model;

[0029] Figure 5 This is a cross-sectional view of the EVA layer, buffer pad, first arc groove, second arc groove, and buffer sphere in this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Elastic plate layer; 2. U-shaped support layer; 3. U-shaped placement groove; 4. Sponge layer; 5. EVA layer; 6. Heel groove; 7. Heel buffer block; 8. Connecting groove; 9. Buffer pad; 10. First arc groove; 11. Second arc groove; 12. Buffer ball. Detailed Implementation

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] See Figures 1 to 5 As shown, the technical solution adopted in this specific embodiment is: an arch support insole, including a contact base layer, an elastic plate layer 1 disposed on the contact base layer, and a U-shaped support layer 2 disposed between the contact base layer and the elastic plate layer 1. The contact base layer is provided with a U-shaped placement groove 3 for placing the U-shaped support layer 2. The elastic plate layer 1 is fixed to the contact base layer by molding, bonding or pressing. The elastic plate layer 1 fixes the U-shaped support layer 2 in the U-shaped placement groove 3. The contact base layer and the U-shaped placement groove 3 are integrally formed.

[0033] The contact base layer includes a sponge layer 4 and an EVA layer 5. An elastic plate layer 1 is fixed on the EVA layer 5. A U-shaped placement groove 3 is formed on the EVA layer 5. The elastic plate layer 1 fixes the U-shaped support layer 2 in the U-shaped placement groove 3. The sponge layer 4 and the EVA layer 5 are fixedly connected by molding, bonding or pressing. The EVA layer 5 and the U-shaped placement groove 3 are integrally formed.

[0034] The elastic plate layer 1 is a TPU layer or a nylon elastomer layer. The elastic plate layer 1 can be a transparent TPU layer, allowing the wearer to see the product's structure after insole production. It can also be an ABS plastic layer. The elastic plate layer 1 serves to provide elasticity to the insole while also wrapping around the elastic base layer and U-shaped support layer 2. It can be shaped, protects the elastic base layer and U-shaped support layer 2, and provides overall support for the insole.

[0035] Resilient materials store kinetic energy when compressed and release it the moment the foot leaves the ground, resulting in an energy return rate of approximately 5-8%. Taking running as an example, this can reduce oxygen consumption by about 2-3% per kilometer.

[0036] The U-shaped support layer 2 is a nylon sheet or a carbon fiber sheet.

[0037] A heel groove 6 is formed on the contact base layer and the elastic plate layer 1. The heel groove 6 is located inside the U-shaped placement groove 3. A heel buffer block 7 is provided on the contact base layer within the heel groove 6. The heel groove 6 is formed on the EVA layer 5 and is integrally molded with the EVA layer 5. The heel buffer block 7 is fixed to the EVA layer 5 by adhesive or glue.

[0038] The rear cushioning block 7 is a rubber block, silicone block, TPE elastic block, or polyamide elastomer.

[0039] A connecting groove 8 is formed on the elastic plate layer 1 at the metatarsal and phalangeal ends, and a buffer pad 9 is disposed on the contact base layer within the connecting groove 8. The buffer pad 9 is fixed to the EVA layer 5 of the contact base layer by means of adhesive, glue, or hot pressing. The connecting groove 8 and the U-shaped placement groove 3 are integrally formed with the elastic plate layer 1. A groove with the same shape as the buffer pad 9 is formed on the EVA layer 5 of the contact base layer at the position of the connecting groove 8, and the groove fits the buffer pad 9 with a clearance.

[0040] The buffer pad 9 is an EVA pad, a sponge pad, a silicone pad, or a rubber pad.

[0041] The contact base layer has several first arc grooves 10 at the metatarsal and phalangeal ends, and the buffer pad 9 has several second arc grooves 11. A buffer ball 12 is provided between the buffer pad 9 and the contact base layer and within the first arc grooves 10 and the second arc grooves 11.

[0042] The first arc groove 11 is formed on the EVA layer 5 that contacts the base layer. The first arc groove 11 and the second arc groove 11 fit against the upper and lower end faces of the buffer ball 12. The first arc groove 11 and the second arc groove 11 not only position the buffer ball 12 during assembly, facilitating assembly and preventing the buffer ball 12 from deviating, but also, after assembly, the buffer ball 12 opens the gap between the base layer and the metatarsal buffer plate to form a buffer gap. During impact, the buffer ball 12 can be squeezed to achieve buffering, and the buffer gap also provides buffering, improving the impact buffering effect on the metatarsal area. During assembly, adhesive can be applied to the first and second grooves, and the EVA layer 5, the buffer ball 12, and the metatarsal buffer plate can be bonded together with the adhesive, thus achieving assembly and buffering through this structure. The buffer sphere 12 can be a soft sphere or a flexible sphere. After the buffer pad is fixed to the EVA layer 5 of the contact base layer by adhesive, glue, or hot pressing, the first arc groove 10 and the second arc groove 11 press against the upper and lower ends of the buffer sphere 12, thereby fixing the position of the buffer sphere 12. The buffer sphere 12 can be selected as an EVA sphere, a sponge sphere, a silicone sphere, or a rubber sphere. The material selection of the buffer sphere 12 can be matched with the material of the buffer pad. The buffer pad can be set as a silicone or rubber sheet with lower softness and better elasticity, while the buffer sphere 12 can be a softer EVA sphere or a sponge sphere, or the buffer pad can be a softer EVA or sponge, while the buffer sphere 12 can be a softer silicone or rubber.

[0043] The working principle of this utility model is as follows: When the insole is placed inside the shoe for wearing, the U-shaped support layer 2 can support the inner and outer longitudinal arches of the foot. During exercise and walking, it can provide support for the arch of the foot. When the foot presses down, the space formed in the middle of the U-shaped support layer 2 can buffer the downward pressure on the arch, reducing the discomfort caused by the arch support plate being too hard. In addition, during exercise and walking, the elastic plate layer 1 and the contact base layer provide resilience and softness. Compared with the traditional one-piece insole, it has the characteristics of softness, support, cushioning and rebound, improving the rebound effect of the insole.

[0044] Traditional insoles that are made entirely of sponge or EVA only take into account the characteristics of softness or cushioning, and are difficult to have the characteristics of softness, support, cushioning and rebound.

[0045] In high-frequency exercise, insoles with good rebound performance can provide a rebound effect during reciprocating bending, reducing fatigue in the forefoot and improving the reaction speed of explosive movements such as jumping and turning.

[0046] The U-shaped support layer 2 supports the medial and lateral longitudinal arches, helping to correct poor gait, promote normal walking patterns, and reduce the impact of gait abnormalities on the knees and spine. For athletes, contralateral arch support can improve comfort and stability during exercise, evenly distribute foot pressure, reduce the burden on the arch, thereby alleviating pain caused by arch collapse, reducing the risk of sports injuries, improving athletes' balance and control, reducing foot pressure and fatigue, and thus improving athletic endurance. In addition, the U-shaped support layer 2 plays a stabilizing role for the midfoot and hindfoot, especially the support of the medial longitudinal arch and the wrapping of the entire heel.

[0047] In the insole production process, the sponge layer 4, EVA layer 5, U-shaped support layer 2, and TPU layer are produced separately. The sponge layer 4 and EVA layer 5 are then bonded or hot-pressed to fix them. The U-shaped support layer 2 is placed in the U-shaped placement groove 3 for positioning, which can prevent the U-shaped support layer 2 from being misplaced, improve the ease of installation and positional accuracy. Then, the TPU layer is fixed to the EVA layer 5 by molding, bonding, or pressing, thereby fixing the U-shaped support layer 2 to the insole. The production process is relatively simple.

[0048] The sponge layer 4 provides softness to the soles of the feet when worn, while the EVA layer 5 provides both softness and cushioning while having some rebound capability.

[0049] This application sets up a TPU layer, a sponge layer 4, and an EVA layer 5 in layers. Compared with the traditional method of directly setting a single layer of material, it can simultaneously have the functions of softness, cushioning, and rebound. The soft and cushioning sponge layer 4 and EVA layer 5 are set at the position that contacts the sole of the foot, which reduces the discomfort caused by the sole of the foot directly contacting the TPU layer. When the forefoot of the insole bends and deforms during walking, the rebound effect of the insole is accelerated by the properties of TPU itself.

[0050] The heel cushioning block 7 can improve the cushioning effect and softness of the heel area, reduce the pressure on the heel area of ​​the shoe, and effectively cushion the pressure that causes the knee cartilage to come into contact with the shoe.

[0051] During exercise, the reaction force from the ground is transmitted upward through the feet. At this time, the cushioning pad 9 can reduce the pressure of the reaction force on the metatarsals and surrounding soft tissues, thereby reducing the occurrence of metatarsal and phalangeal injuries.

[0052] The heel slot 6 and connecting slot 8 provide a flexible cushioning effect for the heel and first metatarsophalangeal joint when the elastic plate 1 is too stiff. The heel cushioning block 7 and cushioning pad 9 can further improve the soft cushioning of the heel and first metatarsophalangeal joint, cushion the impact on the heel slot 6 and the first metatarsophalangeal joint, and reduce the impact on the lower foot, ankle joint and knee. The connecting slot 8 and cushioning pad 9 at the position of the first metatarsophalangeal joint solve the impact on the position of the first metatarsophalangeal joint when pushing off the ground in the last step of the gait, improve gait stability, and thus improve exercise efficiency and comfort.

[0053] This utility model aims to protect the structure of the product. The model numbers of the individual components are not the subject of this utility model's protection and are already known technology. Any component on the market that can achieve the functions described above can be used as an arch support insole. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. An arch support insole, characterized in that: The device includes a contact base layer, an elastic plate layer disposed on the contact base layer, and a U-shaped support layer disposed between the contact base layer and the elastic plate layer. The contact base layer has a U-shaped placement groove for placing the U-shaped support layer. The elastic plate layer is fixed to the contact base layer by molding, bonding or pressing. The elastic plate layer fixes the U-shaped support layer in the U-shaped placement groove. The contact base layer and the U-shaped placement groove are integrally formed.

2. The arch support insole according to claim 1, characterized in that: The contact base layer includes a sponge layer and an EVA layer. An elastic plate layer is fixed on the EVA layer, and a U-shaped placement groove is formed on the EVA layer. The elastic plate layer fixes the U-shaped support layer in the U-shaped placement groove. The sponge layer and the EVA layer are fixedly connected by molding, bonding or pressing. The EVA layer and the U-shaped placement groove are integrally formed.

3. The arch support insole according to claim 1, characterized in that: The elastic plate layer is a TPU layer or a nylon elastomer layer.

4. The arch support insole according to claim 1, characterized in that: The U-shaped support layer is a nylon sheet or a carbon fiber sheet.

5. The arch support insole according to claim 1, characterized in that: The contact base layer and the elastic plate layer are provided with a heel groove, which is located inside the U-shaped placement groove. A heel buffer block is provided on the contact base layer within the heel groove.

6. The arch support insole according to claim 5, characterized in that: The heel cushioning block is a rubber block, a silicone block, a TPE elastic block, or a polyamide elastomer.

7. The arch support insole according to claim 1, characterized in that: The elastic plate has a connecting groove at the metatarsal and phalangeal ends, and a buffer pad is provided in the connecting groove on the contact base layer.

8. The arch support insole according to claim 7, characterized in that: The buffer pad is an EVA pad, a sponge pad, a silicone pad, or a rubber pad.

9. The arch support insole according to claim 7, characterized in that: The contact base layer has several first arc grooves at the metatarsal and phalangeal ends, the buffer pad has several second arc grooves, and a buffer ball is provided between the buffer pad and the contact base layer and within the first and second arc grooves.

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