Improved health insole

Abstract

The utility model discloses an improved health insole, including insole body, the insole body is set gradually as the forefoot, midfoot and heel from front to back, the lower surface of midfoot and heel department is pasted together with hard support piece, the hardness of hard support piece is greater than the hardness of insole body, the outer periphery of heel department is connected with the side wall for the cladding human foot, the middle position of the upper surface of heel department is provided with support convex part no.

Description

Technical Field

[0001] This utility model relates to the field of insole technology, and more specifically to an improved insole. Background Technology

[0002] Traditional insoles are usually flat, making it difficult to provide good arch support and easily injuring the feet during exercise. To solve this problem, many insoles with arch support structures have appeared on the market. These insoles have an arched area corresponding to the arch of the foot to improve arch support performance. However, these insoles mainly focus on the protective support performance of the arch area, resulting in relatively poor wearing comfort.

[0003] Based on this, Chinese Patent No. CN 118648749 A discloses a health insole, which includes a main body with a forefoot portion, a midfoot portion, and a heel portion arranged sequentially from front to back. The midfoot portion has an arched area that conforms to the arch of the human foot. A rear shock-absorbing plate is attached to the lower surface of the heel portion, and the rear shock-absorbing plate is centrally located in the width direction of the heel portion. The same rigid support plate is attached to the lower surfaces of the midfoot portion and the heel portion. With this structure, the rigid support plate can provide good protective support for the arch, while the rear shock-absorbing plate regulates foot pressure, promoting arch formation and making the insole more comfortable to wear. However, the heel portion of the insole has poor coverage, and the wearer's foot is prone to shifting relative to the insole during walking or exercise. Furthermore, to provide protective support for the arch, the rigid support plate is made of a low-hardness, elastic material, which sometimes affects the insole's support strength.

[0004] In view of this, this application has conducted in-depth research on this basis, resulting in this case. Utility Model Content

[0005] The purpose of this invention is to provide an improved healthy insole with good support and good coverage.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] An improved health insole includes an insole body, which is arranged from front to back as a forefoot portion, a midfoot portion, and a heel portion. A rigid support sheet is attached to the lower surface of the midfoot portion and the heel portion. The rigid support sheet has a harder hardness than the insole body. A sidewall for covering the human foot is connected to the outer periphery of the heel portion. A support protrusion is provided at the middle position of the upper surface of the heel portion. A U-shaped recess is formed between the support protrusion and the sidewall of the heel portion.

[0008] The rigid support sheet is a TPU rigid support sheet.

[0009] The Shore D hardness of the rigid support sheet is 57-63.

[0010] The lower surface of the insole body has a margin area corresponding to the edge between the rigid support piece and the edge of the insole body, and the width of the margin area is 4-6mm.

[0011] The insole body is made of PU material, and the AskerC hardness of the insole body is 27-33.

[0012] The lower surface of the forefoot is provided with a rebound area, the rebound area has an installation groove, a rebound piece is attached in the installation groove, and the front end of the rebound piece extends to the thumb area.

[0013] The spring sheet is a PU spring sheet, and the AskerC hardness of the spring sheet is 37-43.

[0014] A rear shock absorber is attached to the lower surface of the heel portion, and the rear shock absorber is centrally arranged in the width direction of the heel portion. The rigid support plate has a perforation for placing the rear shock absorber. The rebound speed of the rear shock absorber is greater than that of the rebound plate.

[0015] The AskerC hardness of the rear shock absorber is 39-45.

[0016] The midfoot is provided with an arched part that matches the arch of the human foot. The arched part has an arc surface and is arranged to bend along the inner side from bottom to top. The arched part forms a maximum lower bending angle and a maximum upper bending angle.

[0017] After adopting the above structure, the present invention has the following beneficial effects: 1. The present invention improves the support of the insole body by setting the rigid support piece, and better forms a protective support for the arch of the foot. At the same time, the U-shaped concave part and the support protrusion part can cover the heel of the wearer's foot, reduce the contact area with the heel, increase the pressure, thereby preventing the wearer's foot from shifting relative to the insole body. The coverage is good, and the support protrusion part provides better stress support for the heel.

[0018] 2. This utility model adopts the setting of the edge area to match the rigid support piece, so as to ensure the overall support and comfort of the insole body.

[0019] 3. The present invention adopts a rebound plate, which helps to enhance the stability of the forefoot. At the same time, the front end of the rebound plate extends to the big toe area, so that the wearer's big toe has a good rebound thrust, so that the big toe can exert force better.

[0020] 4. This utility model adopts the method of setting the maximum lower bending angle and the maximum upper bending angle in the arched part to match people with mild or severe arches, thereby playing a role in correcting the arch. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of the insole in Example 1.

[0022] Figure 2 This is a schematic diagram of the reverse side structure of the insole in Example 1.

[0023] Figure 3 This is a schematic diagram of the reverse side structure of the insole in Example 2.

[0024] Figure 4 This is a schematic diagram of the cross-section of the insole in Example 2.

[0025] Figure 5 This is a schematic diagram of the reverse side structure of the insole in Example 3.

[0026] Figure 6 This is a schematic diagram of the cross-section of the insole in Example 3.

[0027] In the picture:

[0028] 100 - Insole body; 11 - Forefoot; 111 - Rebound plate; 12 - Midfoot;

[0029] 13-Heel section; 131-Side wall; 132-Rear shock absorber;

[0030] 2- Rigid support plate; 21- Extension position; 22- Support protrusion two; 23- Arched part;

[0031] 31-Support convex part one; 32-U-shaped concave part;

[0032] 4-Leave a border area. Detailed Implementation

[0033] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0034] Example 1

[0035] An improved health insole, such as Figure 1 As shown - Figure 2As shown, this insole is suitable for use by children or adults with normal arches. It includes an insole body 100, which is arranged from front to back as a forefoot part 11, a midfoot part 12, and a heel part 13. The forefoot part 11 and the midfoot part 12, as well as the midfoot part 12 and the heel part 13, are integrally connected and smoothly transitioned without obvious separation. In other words, the forefoot part 11, the midfoot part 12, and the heel part 13 are three parts on the same component.

[0036] In this embodiment, for ease of description, the side of the insole body 100 that is closer to the arch of the human foot when it is in normal use is called the inner side, and the side that is away from it is called the outer side. That is to say, the inner side of the shoe refers to the side where the two feet are facing each other, and the side where the two feet are away from each other is called the outer side of the shoe. The side of the insole body 100 that corresponds to the instep of the human foot when it is in normal use is called the upper side, and the side that is away from it is called the lower side.

[0037] The lower sides of the midfoot portion 12 and the heel portion 13 are jointly provided with a rigid support plate 2. The rigid support plate 2 has a harder hardness than the insole body 100. Furthermore, the outer periphery of the heel portion 13 is connected to a side wall 131 for covering the human foot. The upper surface of the heel portion 13 is provided with a support protrusion 31, which is centrally located in the width direction of the heel portion 13. A U-shaped recess 32 is formed between the support protrusion 31 and the side wall 131 in the heel portion.

[0038] Specifically, the heel portion 13 protrudes upward to form a support protrusion 31. This support protrusion 31 is oval-shaped and slightly protrudes from the upper surface of the heel portion 13. The height of the support protrusion 31 is 0.5-1.0 mm. This height refers to the distance between the horizontal plane formed by the upper side of the insole body 100 during use and the highest point of the support protrusion 31. During use, the insole body 100 will be flat due to external force. The optimal height of the support protrusion 31 is 0.5 mm. The shape and size of the support protrusion 31 can be set according to actual conditions, such as adjusting according to the actual height of children, teenagers, and adults. Furthermore, the upper surface of the heel portion 13 forms a U-shaped groove 32 relative to the support protrusion 31. This U-shaped groove is located between the side wall 131 and the support protrusion 31. In this way, the wearer's heel is covered in the side wall 131. At the same time, the contact area with the heel is reduced and the pressure is increased by the support protrusion 31 and the U-shaped groove 32, thereby preventing the wearer's foot from shifting relative to the insole body. The coverage is good, and the support protrusion 31 provides better stress support for the heel.

[0039] The aforementioned rigid support sheet 2 uses commercially available TPU sheets. In this embodiment, the rigid support sheet 2 is a TPU sheet with higher hardness, and the Shore D hardness of the rigid support sheet 2 is 57-63, preferably 62. The insole body 100 is made of conventional PU material, and the Asker C hardness of the insole body 100 is 27-33, preferably 30. Thus, the forefoot portion 11 of the insole body 10 is easily bent to adapt to the human foot. The rigid support sheet 2 provides flexible support for the heel and arch. In this embodiment, the rigid support sheet 2 is harder than the insole body 100, increasing the support of the midfoot portion 12 and heel portion 13 of the insole body 100, and providing better protection and support for the arch and heel.

[0040] Preferably, the front side of the aforementioned rigid support plate 2 extends forward to the forefoot portion 11 to form an extension position 21. The rigid support plate 2 is provided with a support protrusion 22 in the area between the front side of the midfoot portion 12 and the extension position. Since the rigid support plate 2 has a higher hardness than the insole body 100, the support area of ​​the insole is increased, that is, it moves forward from the mid-waist position of the insole body 100, which increases the hardness of the insole body 100 corresponding to the transverse arch, that is, enhances the support for the transverse arch.

[0041] The aforementioned support protrusion 22 is a protrusion formed by the upward protrusion of the lower side of the rigid support piece 2, which serves to absorb shock. The support protrusion 22 is egg-shaped, and its height is 1.5mm-2.5mm. This height refers to the distance between the horizontal plane formed by the upper side of the insole body 100 during use and the highest point of the support protrusion 2. During use, the insole body 100 will become flat due to external force. The optimal height of the support protrusion 22 is 1-1.5mm to ensure that there is no foreign body sensation or foot discomfort when wearing it, and to help change the local pressure friction on the sole of the foot, thereby improving the comfort of exercise. The shape and size of the support protrusion 22 can be set according to the actual situation, for example, it can be adjusted according to the actual height of children, teenagers and adults.

[0042] Furthermore, the lower surface of the insole body 100, corresponding to the edge of the rigid support piece 2, forms a margin area 4 between the edge and the outer periphery of the insole body 100. The width of the margin area 4 is 4-6mm. Preferably, the width of the margin area 4 of the heel portion 13 is smaller than the width of the margin area 4 of the arch portion 12, thereby further ensuring the comfort and support of the insole body 100. In this way, the margin area 4 ensures both comfort and support of the insole body 100. It should be noted that the width of the margin area 4 is set according to the actual size of the insole body 100, and can be arranged in a conventional manner, for example, divided according to sizes 33-35, 36-38, and 39-41, with the same margin width used for each size range.

[0043] Furthermore, the lower surface of the forefoot portion 11 is provided with a rebound area, and an installation groove is formed in the rebound area. A rebound piece 111 is attached in the installation groove. The front end of the rebound piece 111 extends to the thumb area. The rebound piece 111 is made of conventional PU material, thereby improving the support of the forefoot portion 11 and the support of the key force application position (i.e., the thumb position). The rebound piece 111 has good rebound thrust, so that the rebound piece 11 can exert force better, and the thumb position can exert force better as well. Preferably, the hardness of the rebound piece 11 is greater than the hardness of the insole body 100, and the hardness of the rebound piece 11 is less than the hardness of the rigid support piece 2. In this embodiment, the AskerC hardness of the rebound piece 11 is 37-43.

[0044] Furthermore, a rear shock absorber 132 is attached to the lower surface of the heel portion 13. The rear shock absorber 132 is egg-shaped and centrally located in the width direction of the heel portion to improve the comfort of the wearer during exercise and promote healthy foot development. In this embodiment, the Asker C hardness of the rear shock absorber 132 is 39-45C, preferably 43. The rear shock absorber 132 is preferably a slow rebound shock absorber, and the rebound plate 11 is preferably a high rebound shock absorber, that is, the rebound speed of the rear shock absorber 132 is greater than that of the rebound plate, thereby improving wearing comfort.

[0045] Furthermore, the aforementioned midfoot portion 12 is provided with an arched portion 23 that cooperates with the arch of the human foot. The arched portion 23 is an arc surface, and the arched portion 23 corresponds to the inner arch of the human foot. The arc surface is arranged to bend from bottom to top along the inner side. Among them, in the cross-section of the insole body 100, the bending angle is the largest at the mid-waist of the arched portion 23 corresponding to the human foot arch. The arc is arranged to bend from bottom to top along the direction close to the inner side.

[0046] To elaborate, taking a line segment perpendicular to the center line in the vertical direction as the baseline, where the center line refers to the line segment from the heel to the toe of the insole body 100, the arched portion 23 has a maximum upper bending angle and a maximum lower bending angle in the width direction of the insole body 100, i.e., on the cross-section of the insole body 100. The maximum upper bending angle is the maximum angle between the upper arc of the arched portion 23 (starting from the baseline) and the horizontal plane, and the maximum upper bending angle is 2-8°. The maximum lower bending angle is the maximum angle between the lower arc of the arched portion 23 (starting from the baseline) and the horizontal plane. The maximum upper bending angle and the maximum lower bending angle are collectively referred to as... The maximum bending angle is located in the middle of the human foot arch. The arch 23 gradually transitions downwards from the position of the maximum bending angle to the periphery. In other words, in the cross-section of the middle part of the arch 23, the arc corresponding to the maximum bending angle gradually bends from bottom to top along the direction close to the inside. In this embodiment, the arc corresponding to the maximum bending angle is used as a reference, and the curve gradually transitions from this reference to the surrounding area, and connects with the heel part 13 and the midfoot part 12 respectively. Preferably, in this embodiment, the maximum upper bending angle of the arch 23 is 6°, and the maximum lower bending angle is 6°+2°=8°, so as to assist in supporting the normal foot arch and improve posture.

[0047] Preferably, in this embodiment, the thickness of the rigid support sheet 2 is 1.5±0.3mm, the thickness of the insole body 100 is 5.5±0.3mm, the thickness of the rear shock absorber is 6.5±0.3mm, and the thickness of the rebound sheet is 5.5±0.3mm.

[0048] This embodiment presents an improved health insole suitable for children, teenagers, and adults with normal arches. It employs a rigid support plate to enhance the insole's support. The rigid support plate extends to the forefoot, expanding the insole's support for the foot to the front, thus adjusting the support for the transverse arch. Combined with the curved surface of the arch portion 23 and the settings for maximum upper and lower flexion angles, it supports the inner arch of the foot, adjusting the support for the inner arch to correct it. Furthermore, the support protrusion provides good coverage for the wearer's heel.

[0049] Example 2

[0050] like Figure 3 As shown - Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the insole body 100 is suitable for people with mild arches.

[0051] Specifically, on the cross-section of the insole body 100, the arched part 23 is provided with a maximum upper bending angle and a maximum lower bending angle, with the maximum upper bending angle being 4° and the maximum lower bending angle being 6°.

[0052] Example 3

[0053] like Figure 5 As shown - Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the insole body 100 is suitable for people with moderate arches.

[0054] Specifically, on the cross-section of the insole body 100, the arched part 23 is provided with a maximum upper bending angle and a maximum lower bending angle, with the maximum upper bending angle being 2° and the maximum lower bending angle being 4°.

[0055] The above description is only a preferred embodiment of this invention. All equivalent changes and modifications made within the scope of the claims of this utility model shall fall within the scope of the claims of this utility model.

Claims

1. An improved health insole, comprising an insole body, wherein the insole body is configured from front to back as a forefoot portion, a midfoot portion, and a heel portion, characterized in that: The lower surfaces of the midfoot and heel are jointly provided with a rigid support sheet, the rigid support sheet having a harder hardness than the insole body; the outer periphery of the heel is connected to a side wall for covering the human foot, a support protrusion is provided at the middle position of the upper surface of the heel, and a U-shaped recess is formed between the support protrusion and the side wall of the heel.

2. The improved health insole according to claim 1, characterized in that: The rigid support sheet is a TPU rigid support sheet.

3. The improved health insole according to claim 2, characterized in that: The Shore D hardness of the rigid support sheet is 57-63.

4. An improved health insole according to claim 1, 2 or 3, characterized in that: The lower surface of the insole body has a margin area corresponding to the edge between the rigid support piece and the edge of the insole body, and the width of the margin area is 4-6mm.

5. An improved health insole according to claim 1, characterized in that: The insole body is made of PU material, and the AskerC hardness of the insole body is 27-33.

6. An improved health insole according to claim 1, characterized in that: The lower surface of the forefoot is provided with a rebound area, the rebound area has an installation groove, a rebound piece is attached in the installation groove, and the front end of the rebound piece extends to the thumb area.

7. An improved health insole according to claim 6, characterized in that: The spring sheet is a PU spring sheet, and the AskerC hardness of the spring sheet is 37-43.

8. An improved health insole according to claim 7, characterized in that: A rear shock absorber is attached to the lower surface of the heel portion, and the rear shock absorber is centrally arranged in the width direction of the heel portion. The rigid support plate has a perforation for placing the rear shock absorber. The rebound speed of the rear shock absorber is greater than that of the rebound plate.

9. An improved health insole according to claim 8, characterized in that: The AskerC hardness of the rear shock absorber is 39-45.

10. An improved health insole according to claim 1, characterized in that: The midfoot is provided with an arched part that matches the arch of the human foot. The arched part has an arc surface and is arranged to bend along the inner side from bottom to top. The arched part forms a maximum lower bending angle and a maximum upper bending angle.

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