Combined sole
By using a composite sole design, and taking advantage of the different hardness and thickness distribution of the first and second midsoles, the contradiction between support and comfort in the sole is resolved, achieving good support and improved comfort for the feet.
Patent Information
- Application Number
- CN202520633543.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing shoe sole materials struggle to balance support and comfort; soft materials cause the foot to collapse due to lack of support, while hard materials negatively impact cushioning performance.
The shoe features a composite sole design, including a first midsole and a second midsole. The first midsole has protrusions on the inner side of the heel to improve support, while the second midsole has protrusions on the outer side of the forefoot to improve comfort. The design also uses a gradient transition in thickness and hardness to smooth out changes in firmness.
It improves the support performance of the sole for the foot, reduces the risk of pronation and supination, and at the same time improves the wearer's comfort and shock absorption.
Smart Images
Figure CN223759302U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of footwear technology, and in particular to a composite sole. Background Technology
[0002] In existing technologies, shoe soles are generally made of foamed materials such as EVA and PU in one piece; that is, shoe soles are usually made of the same material.
[0003] However, if the sole material is soft, the wearer's foot may not receive adequate support while walking, potentially leading to arch collapse, pronation, or supination. Conversely, if the sole material is hard, it will affect the cushioning performance of the sole, thus impacting the wearer's foot comfort.
[0004] In existing technologies, the softness or hardness of the sole can be adjusted by the type of sole material, the material ratio, and the foaming process parameters, so as to balance the support and comfort of the sole. Utility Model Content
[0005] To balance the support and comfort of the sole, this application provides a composite sole.
[0006] This application provides a composite shoe sole, which adopts the following technical solution:
[0007] A composite sole, along the direction from the toe to the heel, is divided into a forefoot section, an arch section, and a heel section. The sole includes a first midsole and a second midsole, the second midsole having a lower Shore hardness than the first midsole. The first midsole includes a first midsole body and a first protrusion, the first protrusion being disposed on the first midsole body and positioned along the inner side of the heel and arch sections of the first midsole body. The second midsole is fixed to the first midsole body, and the inner side of the second midsole has a first notch for accommodating the first protrusion. The upper surface of the second midsole and the upper surface of the first protrusion form a treading surface for foot stepping.
[0008] By adopting the above technical solution, the heel of the sole is the main stress point when landing, and the arch of the sole plays a role in stabilizing the foot and distributing pressure. During the wearer's landing, the wearer exerts a significant force on the inner side of the heel of the sole; the first midsole has a first protrusion on the inner side of the heel to improve the support performance of the inner side of the heel of the sole, so that the sole provides good support for the wearer's foot and reduces the risk of pronation; while the relatively soft second midsole has a large contact area with the wearer's foot to improve the comfort of the wearer's foot.
[0009] Optionally, the first midsole further includes a second protrusion, which is disposed on the first midsole body and is disposed along the outer side of the forefoot and arch of the first midsole body; the second midsole has a second notch for accommodating the second protrusion, and the surface of the second midsole, the upper surface of the first protrusion and the upper surface of the second protrusion form a stepping surface for the foot to step on.
[0010] By adopting the above technical solution, during the wearer's starting process, the outer side of the foot plays a role in pushing off the ground and moving forward, so that the wearer has a greater force on the outer side of the foot of the sole; and the first midsole is provided with a first protrusion on the outer side of the foot to improve the support performance of the outer side of the foot of the sole, so that the sole provides good support for the wearer's foot and reduces the risk of pronation.
[0011] Optionally, the sole also includes a third midsole, which is fixed between the first midsole body and the second midsole. The Shore hardness of the third midsole is less than that of the first midsole, and the Shore hardness of the third midsole is greater than that of the second midsole.
[0012] By adopting the above technical solution, the third midsole is used to transition the hardness change between the first midsole and the second midsole, so as to facilitate the transmission of force between the first and second midsoles and improve the overall integrity of the sole body, thereby improving the comfort of the wearer's feet.
[0013] Optionally, in the heel area of the sole, the thickness of the first midsole body is greater than the thickness of the second midsole.
[0014] By adopting the above technical solution, the wearer exerts a greater force on the heel of the sole during walking or standing; the first midsole has a higher Shore hardness and better support performance, and the first midsole has a larger proportion in the heel area of the sole, so that the heel area of the sole provides good support for the wearer's foot.
[0015] Optionally, in the forefoot area of the sole, the thickness of the first midsole body is less than the thickness of the second midsole.
[0016] By adopting the above technical solution, the second midsole has a lower Shore hardness and better softness; the second midsole has a larger proportion in the forefoot area of the sole to improve the softness of the forefoot area and improve the comfort of the wearer's feet.
[0017] Optionally, in the foot area of the sole, along the length of the sole, the thickness of the second midsole decreases from the middle to both sides; the lower surface of the second midsole is an arc-shaped surface, which is vertically upward.
[0018] By adopting the above technical solution, the lower surface of the second midsole is an arc-shaped surface, which is conducive to the compression deformation of the second midsole, thereby improving the comfort of the wearer's feet.
[0019] Optionally, the Shore hardness of the first midsole is 45-48.
[0020] By adopting the above technical solution, the Shore hardness of the first midsole is 45-48 degrees, which enables the first midsole to provide good support for the wearer's foot.
[0021] Optionally, the Shore hardness of the second midsole is 38-42.
[0022] By adopting the above technical solution, the Shore hardness of the second midsole is 38-42 degrees, which gives the second midsole good softness and improves the wearer's comfort.
[0023] Optionally, at the heel of the sole, the thickness of the first midsole increases from the outer side to the inner side of the sole, while the thickness of the second midsole decreases.
[0024] By adopting the above technical solution, the thickness variation of the first midsole and the second midsole at the heel of the sole body, along the width direction of the sole, makes the transition of softness and hardness in different areas of the sole smoother, thereby improving the wearer's comfort.
[0025] Optionally, in the foot portion of the sole body, the thickness of the first midsole body decreases from the outer side to the inner side of the sole body, while the thickness of the second midsole increases.
[0026] By adopting the above technical solution, the thickness variation of the first midsole and the second midsole in the forefoot area of the sole body, along the width direction of the sole, makes the transition of softness and hardness in different areas of the sole smoother, thereby improving the wearer's comfort.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. The first midsole has a first protrusion on the inner side of the heel to improve the support performance of the sole on the inner side of the heel, so that the sole provides good support for the wearer's foot and reduces the risk of pronation; while the relatively soft second midsole has a larger contact area with the wearer's foot to improve the comfort of the wearer's foot.
[0029] 2. During the wearer's starting process, the outer side of the foot plays a role in pushing off the ground and moving forward, so that the wearer has a greater force on the outer side of the foot of the sole; while the first midsole has a first protrusion on the outer side of the foot to improve the support performance of the outer side of the foot of the sole, so that the sole provides good support for the wearer's foot and reduces the risk of pronation.
[0030] 3. The lower surface of the second midsole is curved, which is conducive to the compression deformation of the second midsole to improve the comfort of the wearer's feet. Attached Figure Description
[0031] Figure 1 This is a cross-sectional view of the composite sole in Example 1.
[0032] Figure 2 This is a schematic diagram of the combined shoe sole in Example 1.
[0033] Figure 3 This is an exploded view of the combined shoe sole in Example 1.
[0034] Figure 4 This is an exploded view of the combined shoe sole in Example 2.
[0035] Figure 5 This is a cross-sectional view of the heel section of the shoe sole in Example 3.
[0036] Figure 6 This is a cross-sectional view of the foot part of the shoe sole in Example 3.
[0037] Explanation of reference numerals in the attached drawings: 1. First midsole; 11. First midsole body; 12. First protrusion; 13. Second protrusion; 2. Second midsole; 21. First notch; 22. Second notch; 3. Third midsole; 4. Forefoot; 5. Arch; 6. Heel; 7. Sidewall; 8. Tread surface; 9. Bending groove; 101. Medial side; 102. Lateral side. Detailed Implementation
[0038] The following is in conjunction with the appendix Figure 1 Section 6 provides further details regarding this application.
[0039] Example 1
[0040] This application discloses a composite shoe sole. (Refer to...) Figure 1 Along the direction from the toe to the heel of the shoe, the sole is divided into the forefoot section 4, the arch section 5, and the heel section 6. In this embodiment, the left sole is taken as an example, that is, the left side of the sole is the outer side 102 of the sole, and the right side of the sole is the inner side 101 of the sole.
[0041] Reference Figure 1 and Figure 2The composite sole includes a first midsole 1 and a second midsole 2, with the second midsole 2 fixed to the first midsole 1. The side of the first midsole 1 away from the second midsole 2 is the contact surface, used for contact with the ground. A sidewall 7 is provided on the side of the sole away from the contact surface, surrounding the outer perimeter of the sole and forming a tread surface 8 for the wearer's foot to step on. A bending groove 9 is provided in the foot portion 4 area of the tread surface 8 to facilitate walking. The first midsole 1 and the second midsole 2 can be manufactured using processes such as thermal bonding or integral molding; in this embodiment, the first midsole 1 and the second midsole 2 are integrally molded.
[0042] In this embodiment, the Shore A hardness of the second midsole 2 is lower than that of the first midsole 1. The Shore A hardness of the first midsole 1 is 45-48 degrees, and the Shore A hardness of the second midsole 2 is 38-42 degrees. The higher Shore A hardness of the first midsole 1 provides good support for the wearer's foot. The lower Shore A hardness of the second midsole 2 provides good softness and elasticity, thus improving foot comfort when the wearer's foot is on it. In this embodiment, the Shore A hardness of the first midsole 1 is 47 degrees, and the Shore A hardness of the second midsole 2 is 40 degrees.
[0043] Reference Figure 2 and Figure 3 The first midsole 1 includes a first midsole body 11, a first protrusion 12, and a second protrusion 13. The first midsole 1 is used to contact the ground. The first protrusion 12 and the second protrusion 13 are disposed on the first midsole body 11, and the first protrusion 12, the second protrusion 13, and the first midsole body 11 are integrally formed. The first protrusion 12 is disposed along the inner side 101 of the heel portion 6 and the arch portion 5 of the first midsole body 11. The second midsole 2 is fixed on the first midsole body 11, and the inner side 101 of the second midsole 2 is provided with a first notch 21 to accommodate the first protrusion 12. The second protrusion 13 is disposed along the outer side 102 of the forefoot portion 4 and the arch portion 5 of the first midsole body 11. The second midsole 2 has a second notch 22 to accommodate the second protrusion 13. The surface of the second midsole 2, the upper surface of the first protrusion 12, and the upper surface of the second protrusion 13 form a treading surface 8 for the foot to step on.
[0044] Reference Figure 1 In the heel area 6 of the sole, the thickness of the first midsole body 11 is greater than the thickness of the second midsole 2; that is, the heel area 6 of the sole has higher hardness, and the heel area 6 of the sole can provide good support for the wearer's foot, reducing the risk of the wearer's foot eversion or inversion.
[0045] Reference Figure 1 and Figure 3In the forefoot region 4 of the sole, the thickness of the first midsole body 11 is less than the thickness of the second midsole 2. Furthermore, along the length of the sole, the thickness of the second midsole 2 decreases from the center to both sides; that is, the lower surface of the second midsole 2 is an arc-shaped surface, vertically facing upwards. In the forefoot region 4 of the sole, the second midsole 2 has a larger proportion, thereby improving the softness of the forefoot region 4, enhancing its shock absorption and cushioning performance, and improving the comfort of the wearer's foot. The arc-shaped lower surface of the second midsole 2 facilitates compression deformation, further improving the wearer's foot comfort.
[0046] The implementation principle of a composite shoe sole according to an embodiment of this application is as follows:
[0047] Reference Figure 2 and Figure 3 During the foot landing process, the heel part 6 of the shoe sole is the main force point when landing, and the arch part 5 of the shoe sole plays a role in stabilizing the foot and distributing pressure. During the wearer's starting process, the outer side of the foot 102 plays a role in pushing off the ground and moving forward, so that the wearer exerts a greater force on the outer side 102 of the foot sole 4.
[0048] Reference Figure 2 and Figure 3 In this application's technical solution, the first midsole 1 has a first protrusion 12 on the inner side 101 of the heel portion 6 to improve the support performance of the inner side 101 of the heel portion 6, thus providing good support for the wearer's foot and reducing the risk of inward pronation. Similarly, the first midsole 1 has a first protrusion 12 on the outer side 102 of the forefoot portion 4 to improve the support performance of the outer side 102 of the forefoot portion 4, thus providing good support for the wearer's foot and reducing the risk of outward pronation.
[0049] The softer second midsole 2 has a larger contact area with the wearer's foot to improve the wearer's foot comfort.
[0050] Example 2
[0051] The difference between Example 2 and Example 1 is as follows:
[0052] The sole also includes a third midsole 3, which is fixed between the first midsole body 11 and the second midsole 2. The Shore hardness of the third midsole 3 is less than that of the first midsole 1, and greater than that of the second midsole 2. The Shore hardness of the third midsole 3 is between 42 and 45 degrees. In this embodiment, the Shore hardness of the second midsole 2 is 44 degrees.
[0053] The implementation principle of a composite shoe sole according to an embodiment of this application is as follows:
[0054] By placing a third midsole 3 between the first midsole body 11 and the second midsole 2, the third midsole 3 is used to transition the change in hardness between the first midsole body 11 and the second midsole 2, so as to facilitate the transmission of force between the first midsole 1 and the second midsole 2. At the same time, by placing the third midsole 3 between the first midsole body 11 and the second midsole 2, the overall integrity of the sole body is improved, thereby improving the comfort of the wearer's feet.
[0055] Example 3
[0056] The difference between Example 3 and Example 1 is as follows:
[0057] Reference Figure 5 At the heel part 6 of the sole body, along the direction from the outer side 102 to the inner side 101 of the sole, the thickness of the first midsole body 11 increases and the thickness of the second midsole 2 decreases.
[0058] Reference Figure 6 In the foot portion 4 of the sole body, along the direction from the outer side 102 to the inner side 101 of the sole body, the thickness of the first midsole body 11 decreases and the thickness of the second midsole 2 increases.
[0059] The implementation principle of a composite shoe sole according to an embodiment of this application is as follows:
[0060] In the heel part 6 and the forefoot part 4 of the sole body, the thickness of the first midsole body 11 and the second midsole 2 varies; along the width direction of the sole, the transition of softness and hardness in different areas of the sole is made smoother, so as to improve the comfort of the wearer.
[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A combined shoe sole, which is divided into a ball part (4), an arch part (5) and a heel part (6) in order along the toe-to-heel direction of the shoe sole; characterized in that: The shoe sole comprises a first midsole (1) and a second midsole (2), the Shore hardness of the second midsole (2) is less than that of the first midsole (1); the first midsole (1) comprises a first midsole body (11) and a first protrusion (12), the first protrusion (12) is arranged on the first midsole body (11), and the first protrusion (12) is arranged along the heel part (6) and the medial side (101) of the arch part (5) of the first midsole body (11); the second midsole (2) is fixedly arranged on the first midsole body (11), the medial side (101) of the second midsole (2) is provided with a first notch (21) for accommodating the first protrusion (12), and the upper surface of the second midsole (2) and the upper surface of the first protrusion (12) form a treading surface (8) for the foot.
2. The combination sole according to claim 1, wherein: The first midsole (1) further comprises a second protrusion (13), the second protrusion (13) is arranged on the first midsole body (11), and the second protrusion (13) is arranged along the ball part (4) and the lateral side (102) of the arch part (5) of the first midsole body (11); the second midsole (2) is provided with a second notch (22) for accommodating the second protrusion (13), and the upper surface of the second midsole (2), the upper surface of the first protrusion (12) and the upper surface of the second protrusion (13) form a treading surface (8) for the foot.
3. The modular sole of claim 1, wherein: The shoe sole further comprises a third midsole (3), the third midsole (3) is fixedly arranged between the first midsole body (11) and the second midsole (2), the Shore hardness of the third midsole (3) is less than that of the first midsole (1), and the Shore hardness of the third midsole (3) is greater than that of the second midsole (2).
4. The modular sole of claim 1, wherein: In the heel part (6) region of the shoe sole, the thickness of the first midsole body (11) is greater than that of the second midsole (2).
5. The modular sole of claim 1, wherein: In the ball part (4) region of the shoe sole, the thickness of the first midsole body (11) is less than that of the second midsole (2).
6. The combination sole of claim 5, wherein: In the ball part (4) region of the shoe sole, along the length direction of the shoe sole, the thickness of the second midsole (2) decreases from the middle to both sides.
7. The modular sole of claim 1, wherein: The Shore hardness of the first midsole (1) is 45-48 degrees.
8. The modular sole of claim 1, wherein: The Shore hardness of the second midsole (2) is 38-42 degrees.
9. The modular sole of claim 1, wherein: In the heel part (6) of the shoe sole, along the direction from the lateral side (102) to the medial side (101), the thickness of the first midsole body (11) increases, and the thickness of the second midsole (2) decreases.
10. The modular sole of claim 2, wherein: In the ball part (4) of the shoe sole, along the direction from the lateral side (102) to the medial side (101) of the shoe sole body, the thickness of the first midsole body (11) decreases, and the thickness of the second midsole (2) increases.