Flat foot correcting insole with arch support

Abstract

The flat foot correction insole comprises a body with a first face and a second face, the first face is used for making contact with the foot bottom, the first face is provided with an arc-shaped protruding part facing the foot bottom at the foot arch position, the flat foot correction insole further comprises a third face connected with the second face, and the third face inclines towards the foot bottom and is arranged opposite to the arc-shaped protruding part. The second face is detachably provided with a supporting piece body, the supporting piece body comprises a plane part and an inclined supporting part which are connected into a whole, the inclined supporting part acts on the third face to support the arc-shaped protruding part, and the plane part is connected with the second face.

Description

Technical Field

[0001] This application relates to the field of footwear technology, specifically to a flatfoot orthotic insole with arch support. Background Technology

[0002] With the development of insole technology, various functional insoles have been widely used. Especially in the field of foot health, orthotic insoles targeting foot problems such as flat feet are gaining increasing attention. However, these products still have some problems in actual use. For example, while insoles on the market currently offer some arch support, their structural design lacks proper support for the arch area, resulting in limited support and an inability to effectively alleviate foot fatigue and discomfort caused by flat feet. Furthermore, some insoles use a limited range of materials, lacking sufficient elasticity and comfort, and are prone to deformation and collapse after prolonged use, affecting their corrective effect. Therefore, continued improvement is necessary to address these issues. Summary of the Invention

[0003] The purpose of this application is to provide a flatfoot corrective insole with arch support to solve the problems in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution: a flat foot corrective insole with arch support, comprising a main body 1 having a first surface 101 and a second surface 102, the first surface 101 being for contacting the sole of the foot, the first surface 101 having an arcuate protrusion 106 facing the sole of the foot at the arch position, and further comprising a third surface 107 connected to the second surface 102, the third surface 107 being inclined towards the sole of the foot and disposed opposite to the arcuate protrusion 106, the second surface 102 being detachably equipped with a support plate 2, the support plate 2 comprising a flat portion 201 and a diagonal support portion 202 integrally connected, the diagonal support portion 202 acting on the third surface 107 to support the arcuate protrusion 106, the flat portion 201 being connected to the second surface 102.

[0005] Furthermore, the second surface 102 and the third surface 107 are provided with concave cavities 103 that conform to the shape of the support plate 2. The support plate 2 is housed in the concave cavity 103, and the outer surfaces of the planar portion 201 and the inclined support portion 202 are respectively flush with the surfaces of the second surface 102 and the third surface 107.

[0006] Furthermore, the side edge of the planar portion 201 away from the diagonal brace portion 202 extends at least beyond the transverse centerline of the second surface 102.

[0007] Furthermore, at least three through holes 204 are arranged in a triangular pattern on the planar portion 201, and a stepped hole 203 communicating with each of the through holes 204 is also formed on the planar portion 201. The diameter of the stepped hole 203 is larger than the diameter of the through hole 204. A connecting post 104 passing through the through hole 204 is formed on the main body 1, and a fastener 105 adapted to the stepped hole 203 is formed at the outer end of the connecting post 104.

[0008] Furthermore, the sidewall of the diagonal brace 202 at the heel end and the sidewall at the forefoot end gradually converge away from the intersection line of the diagonal brace 202 and the planar part 201.

[0009] Furthermore, the inclined support 202 is also formed in an arc shape toward the arc-shaped protrusion 106.

[0010] Furthermore, the Shore hardness of the support sheet 2 is 30 to 85 degrees.

[0011] The beneficial effects of this application are as follows: This application provides a flat foot corrective insole with arch support. By providing an arc-shaped protrusion facing the sole of the foot on the first surface, it creates a soft and elastic force-applying corrective effect on the arch of the foot. Simultaneously, a support plate is detachably mounted on the second surface. The flat portion and the diagonal support portion of the support plate work together to support the back of the arc-shaped protrusion, thereby ensuring the effective force application of the arc-shaped protrusion to the surface of the arch of the foot. The side edge of the flat portion away from the diagonal support portion extends at least beyond the transverse midline of the second surface. Thus, when the foot steps on the insole, the sole of the foot presses against the flat portion, providing support to the flat surface. The pressure generated by the main body is directly transmitted to the diagonal brace, which provides support for the arc-shaped protrusion. At the same time, the sidewalls of the diagonal brace at the heel end and the sidewalls at the forefoot end gradually converge away from the intersection line of the diagonal brace and the flat part. This convergence structure makes the shape of the diagonal brace more in line with the structure of the human foot arch. The diagonal brace also forms an arc towards the arc-shaped protrusion, which increases the rigidity and strength of the diagonal brace and further strengthens the support for the arc-shaped protrusion. It also makes the point of force application more inclined to the medial cuneiform bone of the foot arch, resulting in greater comfort and better corrective effect during use. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the flatfoot orthotic insole with arch support according to this application;

[0013] Figure 2 This is a structural diagram of the main body of this application (with the support plates removed).

[0014] Figure 3 for Figure 2 Sectional view of AA;

[0015] Figure 4 for Figure 2 BB section view;

[0016] Figure 5 This is a cross-sectional view of the supporting sheet of this application.

[0017] In the diagram: 1. Main body; 101. First surface; 102. Second surface; 103. Cavity; 104. Connecting column; 105. Fastener; 106. Arc-shaped protrusion; 107. Third surface; 2. Support plate; 201. Flat part; 202. Diagonal brace; 203. Stepped hole; 204. Through hole. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Please see Figure 1-5 A flatfoot corrective insole with arch support includes a main body 1 having a first surface 101 and a second surface 102. The first surface 101 is for contacting the sole of the foot and has an arc-shaped protrusion 106 facing the sole at the arch position. It also includes a third surface 107 connected to the second surface 102, which is inclined towards the sole and opposite to the arc-shaped protrusion 106. A support plate 2 is detachably mounted on the second surface 102. The support plate 2 includes a flat portion 201 and a diagonal support portion 202 integrally connected. The diagonal support portion 202 acts on the third surface 107 to support the arc-shaped protrusion. Part 106 provides support, and the flat part 201 is connected to the second surface 102. It can be understood that the two ends of the arc-shaped protrusion 106 smoothly transition to the first surface 101 at the heel and the ball of the foot, respectively. The highest point of the arc-shaped protrusion 106 in the longitudinal direction of the insole is located at the position of the medial cuneiform bone of the human body. The arc-shaped protrusion 106 in the transverse direction of the insole slopes upward from the midline of the second surface 102 at the arch position towards the medial side of the foot. Here, the main body 1 can be made of foam material commonly used in existing insoles through mold foaming, and the support sheet 2 can be made of materials commonly used in the industry such as hard plastic and TPU, through compression molding or injection molding.

[0020] According to the structure provided in this embodiment, the flatfoot corrective insole with arch support provided in this application forms a flexible and elastic force-applying corrective effect on the arch of the human body by providing an arc-shaped protrusion 106 facing the sole of the foot on the first surface 101. At the same time, a support plate is detachably installed on the second surface 102. Through the combined action of the flat part 201 and the inclined support part 202 of the support plate 2, the back side of the arc-shaped protrusion 106 is supported, thereby ensuring the force-applying effect of the arc-shaped protrusion 106 on the surface of the human arch. The side edge of the flat part 201 away from the inclined support part 202 extends at least beyond the transverse midline of the second surface 102. Thus, when the foot steps on the insole, the pressure generated on the flat part 201 when the sole of the foot presses against the flat part 201 is directly transmitted to the inclined support part 202. The support force for the arc-shaped protrusion 106 is enhanced by the fact that the side walls of the diagonal support 202 at the heel end and the side walls at the forefoot end gradually converge away from the intersection line of the diagonal support 202 and the flat surface 201. This convergence structure makes the shape of the diagonal support more in line with the structural characteristics of the human foot arch. The diagonal support 202 also forms an arc towards the arc-shaped protrusion 106, which increases the rigidity and strength of the diagonal support 202 and further strengthens the support for the arc-shaped protrusion 106. It also makes the force application point more inclined to the medial cuneiform bone of the foot arch, resulting in greater comfort and better correction effect during use. Furthermore, since the support plate 2 is a replaceable structure, a suitable support plate 2 can be selected according to the actual physiological structure of the foot arch, which is far superior to existing technologies.

[0021] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The second surface 102 and the third surface 107 have concave cavities 103 that conform to the shape of the support plate 2. The support plate 2 is housed in the concave cavity 103 and the outer surfaces of the flat portion 201 and the inclined support portion 202 are flush with the surfaces of the second surface 102 and the third surface 107, respectively. In this way, the insole of this embodiment can have a stable support effect, better fit with the sole, and be more comfortable to wear.

[0022] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The side edge of the flat part 201 away from the diagonal support part 202 extends at least beyond the transverse center line of the second surface 102. Thus, when the foot steps on the insole and the sole of the foot presses against the flat part 201, the pressure generated on the flat part 201 is directly transmitted to the diagonal support part 202 to generate a supporting force on the arc-shaped protrusion 106. The arc-shaped protrusion 106 provides stable support for the arch of the foot by fully utilizing the weight of the human body, avoiding the flipping of the support plate 2 and ensuring the effectiveness of use.

[0023] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5At least three through holes 204 are arranged in a triangular pattern on the planar portion 201. A stepped hole 203 communicating with each through hole 204 is also formed on the planar portion 201. The diameter of the stepped hole 203 is larger than the diameter of the through hole 204. A connecting post 104 passing through the through hole 204 is formed on the main body 1. A snap-fit ​​connector 105 adapted to the stepped hole 203 is formed at the outer end of the connecting post 104. Here, the method for connecting the main body 1 and the support sheet 2 is as follows: during the molding of the main body 1, foaming material of the main body 1 or material premixed with foaming particles, such as PU, TPR, TPE, PVC, silicone, TPU, or TR, is injected into the mold. The mold contains... There are cavities for forming the concave cavity 103, the connecting post 104, and the fastener 105. During the process of filling the mold cavity with material to form the main body 1, the concave cavity 103, the connecting post 104, and the fastener 105 are formed simultaneously. In use, the support plate 2 is placed into the concave cavity 103, the connecting post 104 and the fastener 105 pass through the through hole 204, and the fastener 105 is snapped into the stepped hole 203, which can easily complete the installation of the support plate 2. The production efficiency is high and the connection is firm. It is understandable that since the material of the main body 1 is an elastic material, the connecting post 104 and the fastener 105 can pass through the through hole 204 through elastic deformation.

[0024] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The side wall of the diagonal support 202 at the heel end and the side wall at the forefoot end gradually converge away from the intersection line of the diagonal support 202 and the flat part 201. In this way, the convergence structure makes the shape of the diagonal support more in line with the physiological characteristics of the human foot arch structure, and the support and correction effect is better.

[0025] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The diagonal brace 202 also forms an arc towards the arc-shaped protrusion 106. In this way, while increasing the rigidity and strength of the diagonal brace 202, it further strengthens the support of the arc-shaped protrusion 106 and makes the force application point more inclined to the medial cuneiform position of the arch of the foot. On the one hand, it is more comfortable to use, and on the other hand, it has a better corrective effect.

[0026] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5The Shore A hardness of the support plate 2 is 30-85 degrees. In a preferred embodiment, multiple support plates 2 are manufactured in Shore A hardness ranges of 30-35 degrees, 45-55 degrees, and 80-85 degrees to match one main body 1. This allows for selection by individuals with different arch curvatures. For example, a support plate 2 with low hardness, such as 30-35 degrees, is suitable for individuals with flat arches in the initial stage to obtain softer support. After correction to a predetermined degree, a support plate 2 with intermediate hardness, such as 45-55 degrees, can be selected for further correction. For subsequent correction or for individuals with normal arches, a support plate with high hardness, such as 80-85 degrees, can be used, providing strong support and protection for the arch.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] In the description of this application, it should be understood that the terms "upper", "lower", "centerline", "side", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flatfoot corrective insole with arch support, comprising a body (1) having a first surface (101) and a second surface (102), the first surface (101) being for contacting the sole of the foot, characterized in that: The first surface (101) has an arc-shaped protrusion (106) facing the sole of the foot at the arch position, and also includes a third surface (107) connected to the second surface (102). The third surface (107) is inclined towards the sole of the foot and is disposed opposite to the arc-shaped protrusion (106). The second surface (102) is detachably equipped with a support plate (2). The support plate (2) includes a flat part (201) and a diagonal brace (202) that are integrated together. The diagonal brace (202) acts on the third surface (107) to support the arc-shaped protrusion (106). The flat part (201) is connected to the second surface (102).

2. The orthotic insole with arch support according to claim 1, characterized in that: The second surface (102) and the third surface (107) have concave cavities (103) that are similar in shape to the support plate (2). The support plate (2) is housed in the concave cavity (103) and the outer surfaces of the planar portion (201) and the inclined support portion (202) are flush with the surfaces of the second surface (102) and the third surface (107), respectively.

3. The flatfoot corrective insole with arch support according to claim 1, characterized in that: The side edge of the flat portion (201) away from the diagonal brace portion (202) extends at least beyond the transverse centerline of the second surface (102).

4. The orthotic insole with arch support according to claim 1, characterized in that: At least three through holes (204) are arranged in a triangular pattern on the planar part (201). A stepped hole (203) communicating with each of the through holes (204) is also formed on the planar part (201). The diameter of the stepped hole (203) is larger than the diameter of the through hole (204). A connecting post (104) passing through the through hole (204) is formed on the main body (1). A fastener (105) adapted to the stepped hole (203) is formed at the outer end of the connecting post (104).

5. The orthotic insole with arch support according to claim 1, characterized in that: The side wall of the diagonal brace (202) at the heel end and the side wall at the forefoot end gradually converge away from the intersection line of the diagonal brace (202) and the flat part (201).

6. The flatfoot corrective insole with arch support according to claim 5, characterized in that: The diagonal brace (202) also forms an arc shape toward the arc-shaped protrusion (106).

7. The orthotic insole with arch support according to any one of claims 1 to 6, characterized in that: The Shore hardness of the support sheet (2) is 30~85 degrees.

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