A support plate and insole to prevent pronation of the foot

Abstract

This utility model discloses a support plate for preventing foot pronation. The support plate is at least partially located at the arch of the foot, with the side of the foot facing each other as the inner side and the side facing away as the outer side. The support plate is a one-piece structure, and at least on the outer side of the support plate, there are several spaced first notches. The bending strength of the outer side of the support plate is lower than that of the inner side. An insole for preventing foot pronation includes an insole body and a support plate. The bending strength of the outer side of the support plate is lower than that of the inner side. It guides the foot to deflect outwards and corrects pronation.

Description

Technical Field

[0001] This utility model relates to the technical field of shoes, and in particular to a support plate and insole for preventing foot pronation. Background Technology

[0002] Flat feet and high arches have a higher incidence of lower limb pain and injuries than normal feet, leading to knee injuries, ankle injuries, plantar fasciitis, calcaneal malformations, and Achilles tendinitis. Some injuries commonly occur in high arches, some in low arches, and some in both foot types simultaneously. The gait of flat feet, clubfoot, and high arches typically differs from that of healthy individuals, and pressure in certain areas of the foot is also higher. These conditions can be addressed with foot orthoses. Foot orthoses are widely used by people with flat feet and high arches due to their simplicity, low cost, and short production cycle.

[0003] Currently, foot orthotics mainly focus on the soles or insoles; for flat feet, a raised component is mainly made on the inner side of the midfoot to support the medial arch, but this component is quite hard and the user experience is not good; for high arches, soft materials are mainly used in the forefoot and hindfoot to distribute the excessive pressure concentrated in this area.

[0004] In view of this, the inventor of this case conducted in-depth research, which led to the creation of this case. Utility Model Content

[0005] The primary objective of this invention is to provide a novel support plate for preventing foot pronation.

[0006] The second objective of this invention is to provide an insole comprising the aforementioned support sheet.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: A support plate for preventing foot pronation, wherein the support plate is at least partially located at the arch of the foot, with the side of the two feet facing each other as the inside and the side facing away from each other as the outside, the support plate is an integral structure, and at least a number of spaced first notches are provided on the outer side of the support plate, and the bending strength of the outer side of the support plate is lower than that of the inner side of the support plate.

[0008] Furthermore, the inner side of the support piece is provided with a plurality of spaced second notches, the arrangement density of the second notches is less than the arrangement density of the first notches, and / or the width of the second notches is less than the width of the first notches, and / or the length of the second notches is less than the length of the first notches.

[0009] Furthermore, the first notch and / or the second notch are U-shaped structures, with the width W of the first notch being 1-3 mm and the length L being 10-20 mm.

[0010] Furthermore, the first notch and / or the second notch are notches with a basic geometric shape.

[0011] Furthermore, the first notch and / or the second notch are irregularly shaped notches.

[0012] Furthermore, the support sheet is a TPU board, a nylon board, or a carbon board.

[0013] Furthermore, the support piece extends from the arch of the foot to the heel, and the heel of the support piece has a hollow structure.

[0014] This utility model also discloses an insole for preventing foot pronation, comprising an insole body and the aforementioned support piece, wherein the support piece is embedded in the insole body or is disposed at the bottom of the insole body.

[0015] Furthermore, the insole body has a single-layer structure or a double-layer structure or more; when the insole body has a double-layer structure or more, it is divided into a first layer and a second layer from top to bottom, and the hardness of the first layer is lower than that of the second layer.

[0016] Furthermore, the insole body is an EVA insole body, a PU insole body, or an ETPU insole body; By adopting the above technical solution, the present invention provides a support plate for preventing foot pronation. A first notch is provided on the outer side of the integrated support plate, so that the longitudinal support strength on the outer side is less than the longitudinal support strength on the inner side, thereby making the longitudinal bending strength on the inner and outer sides inconsistent, thus guiding the foot to deflect outward and correcting pronation. Attached Figure Description

[0017] Figure 1 and Figure 2 This is a schematic diagram of a support plate structure for preventing foot pronation according to Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the support plate structure for preventing foot inversion according to Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of a hollow structure being created on the support sheet in Embodiment 2; Figure 5 This is a schematic diagram of the structure of an insole for preventing foot pronation according to the present invention.

[0018] In the picture: First notch 1; Second notch 2; Forefoot notch 11; Longitudinal arch notch 12; Connecting part 13; Insole body 3; First layer 31; Second layer 32; Support piece 4; Hollow structure 5; Fabric layer 6. Detailed Implementation

[0019] Example 1 This utility model relates to a support plate for preventing foot pronation, such as... Figure 1 As shown, the support plate 4 is at least partially located at the arch of the foot. Specifically, the support plate 4 extends from the position corresponding to the heel to the position corresponding to the metatarsophalangeal joint of the forefoot, with the opposite side of the feet as the inner side and the opposite side as the outer side. The support plate 4 is a one-piece structure, with several spaced first notches 1 formed on the outer side of the support plate 4. The inner side of the support plate 4 is a single piece. The bending strength of the outer side of the support plate 4 is lower than that of the inner side, thereby guiding the foot to deflect outward and correcting pronation. The first notch 1 can be a basic geometric shape notch, such as a triangle or trapezoid, or the first notch 1 can be an irregular shape notch.

[0020] Furthermore, the support sheet is made of one of the following materials: TPU, nylon, or carbon fiber.

[0021] Furthermore, the support plate 4 extends from the arch of the foot to the heel, such as... Figure 2 As shown, the first notch 1 includes a forefoot notch 11 and a longitudinal arch notch 12. The forefoot notch 11 corresponds to the forefoot, and the longitudinal arch notch 12 corresponds to the lateral longitudinal arch. A support portion 13 is formed between the forefoot notch 11 and the longitudinal arch notch 12. The rack length of the longitudinal arch notch 12 is greater than the rack length of the forefoot notch 11. In this way, the distribution and length of the racks can be adaptively adjusted according to the different forces on the forefoot and longitudinal arch on the lateral side of the foot, which is more in line with the structural mechanics and movement patterns of the foot.

[0022] Example 2 like Figure 3 As shown, the structure of the support piece 4 in this embodiment is basically the same as that of the support piece 4 in embodiment 1. In this embodiment, only a number of second notches 2 are provided on the inner side of the support piece. The arrangement density of the second notches 2 is less than that of the first notches 1, and / or the width of the second notches 2 is less than the width of the first notches 1, and / or the length of the second notches 2 is less than the length of the first notches 1.

[0023] The first notch 1 and / or the second notch 2 are U-shaped structures that penetrate the lateral position of the support piece. The width W of the first notch 1 is 1 to 3 mm and the length L is 10 to 20 mm.

[0024] Furthermore, such as Figure 4 As shown, the support piece 4 has a hollow structure 5 at the heel position, which reduces material usage.

[0025] Example 3 This utility model relates to an insole that prevents pronation of the foot, such as... Figure 5 As shown, the insole includes a main body 3 and a support piece 4. The support piece 4 is embedded in the main body 3, or the support piece 4 is disposed at the bottom of the main body 3. The support piece 4 can adopt the support piece 4 structure of Embodiment 1 and Embodiment 2.

[0026] The insole body 3 has a single-layer structure or a double-layer or higher structure. Typically, a fabric layer 6 is also covered on the insole body 3.

[0027] like Figure 5 As shown, the insole body 3 of this embodiment has a double-layer structure, which is divided into a first layer 31 and a second layer 32 from top to bottom. The hardness of the first layer 31 is lower than that of the second layer 32, and the support piece 4 is disposed on the bottom surface of the second layer 32.

[0028] The main body of the insole is an EVA insole, a PU insole, or an ETPU insole (popcorn).

[0029] The materials used in each layer of this utility model are all materials known in the industry.

[0030] This invention relates to an insole for preventing pronation of the foot. The inner side of the insole is more flexible than the outer side of the support piece 4. During walking, the inner side is less flexible than the outer side, which guides the foot to twist outward, thereby correcting the pronation gait and achieving a corrective effect.

[0031] The above embodiments and accompanying drawings are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A support sheet to prevent pronation of the foot, characterised in that: The support plate is at least partially located at the arch of the foot, with the side of the feet facing each other as the inside and the side facing away from each other as the outside. The support plate is an integral structure, and at least a number of spaced first notches are provided on the outer side of the support plate. The bending strength of the outer side of the support plate is lower than that of the inner side of the support plate.

2. A suppor strip to prevent pronation of the foot as claimed in claim 1 wherein: The inner side of the support piece is provided with a plurality of spaced second notches, the arrangement density of the second notches is less than the arrangement density of the first notches, and / or the width of the second notches is less than the width of the first notches, and / or the length of the second notches is less than the length of the first notches.

3. A support plate for preventing foot pronation as described in claim 2, characterized in that: The first notch and / or the second notch are U-shaped structures, with the width W of the first notch being 1 to 3 mm and the length L being 10 to 20 mm.

4. A support plate for preventing foot pronation as described in claim 2, characterized in that: The first notch and / or the second notch are based on a geometric shape notch.

5. A support plate for preventing foot pronation as described in claim 2, characterized in that: The first notch and / or the second notch are irregularly shaped notches.

6. A support plate for preventing foot pronation as described in claim 1, characterized in that: The support sheet is a TPU board, nylon board, or carbon board.

7. A support plate for preventing foot pronation as described in claim 1, characterized in that: The support plate extends from the arch of the foot to the heel, and the heel of the support plate has a hollow structure.

8. An insole for preventing pronation of the foot, characterized in that: The insole includes a main body and a support piece as described in any one of claims 1-7, wherein the support piece is embedded in the main body or is disposed at the bottom of the main body.

9. The insole for preventing pronation of the foot as described in claim 8, characterized in that: The insole body is a single-layer structure or a double-layer structure or more; when the insole body is a double-layer structure or more, it is divided into a first layer and a second layer from top to bottom, and the hardness of the first layer is lower than that of the second layer.

10. The insole for preventing pronation of the foot as described in claim 9, characterized in that: The main body of the insole is made of EVA, PU, ​​or ETPU.

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