A dual density sole

Abstract

This utility model relates to the field of footwear technology, specifically to a dual-density sole, comprising an outsole and a midsole bonded to the outsole. The midsole includes a first midsole and a second midsole. The first midsole includes a first midsole body, a first sidewall, a second sidewall, and a third sidewall. The second midsole includes a second midsole body and a fourth sidewall. The side of the first sidewall away from the second sidewall, the side of the second sidewall away from the first sidewall, and the rear side of the third sidewall are respectively fixedly attached to the inner wall of the fourth sidewall. The cooperation of the first, second, third, and fourth sidewalls forms a double-layer protection, providing enhanced support for the inner and outer sides of the heel, reducing the risk of excessive ankle lifting and rollover during landing, resulting in relatively good support stability. Simultaneously, the first midsole provides a soft touch, offering good wearing comfort.

Description

Technical Field

[0001] This utility model relates to the field of shoe technology, specifically to a dual-density shoe sole. Background Technology

[0002] Existing shoe soles, especially those for athletic shoes, generally consist of a midsole and an outsole. The midsole typically uses a relatively soft material (such as EVA) to provide cushioning.

[0003] Normally, when the foot lands, the heel of the shoe sole strikes the ground first. When the angle between the foot and the sole is not right, such as the inside of the sole (the side corresponding to the inside of the instep) striking the ground first, if the midsole is too soft, the heel of the sole will deform excessively, causing the outside of the sole to lift excessively and roll inward, resulting in relatively poor support and stability. If the midsole is too hard, although a hard midsole has a certain support performance, it will affect the comfort of wearing the shoe.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned issues, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide a dual-density sole that offers relatively good support stability and wearing comfort.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A dual-density sole includes an outsole and a midsole laminated to the outsole. The midsole includes a first midsole and a second midsole, with the first midsole laminated to the second midsole. The second midsole is designated as a forefoot portion corresponding to the forefoot, an arch portion corresponding to the arch of the foot, and a heel portion corresponding to the heel. The front end of the first midsole is positioned corresponding to the arch portion, and the rear end is positioned corresponding to the rear side of the heel portion. The hardness of the first midsole is less than that of the second midsole, and the hardness of the second midsole is less than that of the outsole. The first midsole includes the first midsole. The second midsole comprises a main body, a first sidewall disposed on the inner side of the first midsole body, a second sidewall disposed on the outer side of the first midsole body, and a third sidewall disposed at the rear side of the first midsole body. The first sidewall is integrally connected to one end of the third sidewall, and the second sidewall is integrally connected to the other end of the third sidewall. The second midsole includes a second midsole body and a fourth sidewall surrounding the periphery of the second midsole body. The side of the first sidewall away from the second sidewall, the side of the second sidewall away from the first sidewall, and the rear side of the third sidewall are respectively fixedly attached to the inner sidewall of the fourth sidewall.

[0007] As an improvement of this utility model, the outsole has a first hollow hole at a position corresponding to the heel, and the bottom of the second midsole is integrally connected with a first anti-slip block inserted into the first hollow hole. The side wall of the first anti-slip block facing the inner side of the outsole is set as a first anti-slip step arranged in a stepped manner.

[0008] As an improvement of this utility model, the bottom of the outsole is provided with a second hollow groove. One end of the second hollow groove is located at a position corresponding to the forefoot, and the other end of the second hollow groove is located at a position corresponding to the inner side of the arch. The second hollow groove penetrates the outsole. The bottom of the second midsole is integrally connected with a second anti-slip block inserted into the second hollow hole. The side wall of the second anti-slip block facing the outer side of the outsole is set as a second anti-slip step arranged in a stepped manner.

[0009] As an improvement of this utility model, the front end of the outsole extends upward to form an anti-collision strip, the anti-collision strip is fixedly attached to the outer side wall of the fourth side wall, and the upper end of the anti-collision strip is higher than the upper end of the fourth side wall located on the front side of the second midsole.

[0010] As an improvement of this utility model, the heel portion includes a first heel segment and a second heel segment integrally connected to the rear end of the first heel segment. The front end of the first heel segment is integrally connected to the arch portion. The connection position of the first heel segment and the second heel segment corresponds to the center position of the human heel. The bottom surface of the second heel segment is arranged to gradually slope upward from the end connected to the first heel segment to the other end.

[0011] As an improvement of this utility model, the thickness of the first sidewall gradually decreases from one end connected to the third sidewall to the other end, and the upper end of the first sidewall at the position corresponding to the heel is higher than the upper end of the fourth sidewall located on the inner side of the heel.

[0012] As an improvement of this utility model, the thickness of the second sidewall gradually decreases from one end connected to the third sidewall to the other end, and the upper end of the second sidewall at the position corresponding to the heel is higher than the upper end of the fourth sidewall at the position on the outside of the heel.

[0013] As an improvement of this utility model, the upper end of the third side wall is positioned lower than the upper end of the fourth side wall located on the rear side of the heel portion.

[0014] As an improvement of this utility model, the second midsole is a foamed second midsole.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects: The first and second midsole bodies work together to form a double-layer support, while the first, second, third, and fourth sidewalls work together to form a double-layer protection. This provides enhanced support for the inner and outer sides of the heel, reducing the risk of the ankle excessively lifting and rolling to the sides during landing. The support stability is relatively good, and the first midsole provides a soft touch, resulting in good wearing comfort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a dual-density shoe sole according to the present invention; Figure 2 This is a bottom view of a dual-density shoe sole according to the present invention.

[0017] The corresponding markings in the diagram are as follows: 10 - Outsole; 20 - Midsole; 21 - First mid-bottom; 22 - Second mid-bottom; 23 - First side wall; 24 - Second side wall; 25 - Third side wall; 26 - Fourth side wall; 27 - First perforated hole; 28 - First anti-slip block; 29 - First anti-slip step; 30 - Second perforated hole; 31-Second anti-slip block; 32-Second anti-slip step; 33-Bumper strip. Detailed Implementation

[0018] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and drawings of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0020] like Figures 1-2 As shown, this embodiment provides a dual-density sole, including an outsole 10 and a midsole 20 composited on the outsole 10. The midsole 20 includes a first midsole 21 and a second midsole 22. The first midsole 21 is composited on the second midsole 22. The second midsole 22 is the forefoot portion corresponding to the position of the forefoot, the arch portion corresponding to the position of the arch of the foot, and the heel portion corresponding to the position of the heel of the foot.

[0021] For ease of description, the vertical and horizontal directions of the sole are described as if the sole were placed normally on a horizontal surface. The side of the soles of the two shoes in the same pair facing each other is the inner side of the shoe, and the opposite side is the outer side of the shoe. The side facing the toe is the front side, and the opposite side is the back side.

[0022] The front end of the first midsole 21 corresponds to the arch of the foot, and the rear end of the first midsole 21 corresponds to the rear side of the heel. That is, the first midsole extends from the arch to the rear side of the heel. The hardness of the first midsole 21 is less than that of the second midsole 22, and the hardness of the second midsole 22 is less than that of the outsole 10. In this embodiment, the second midsole 22 is a foamed second midsole. The first midsole 21 includes a first midsole body, a first sidewall 23 disposed on the inner side of the first midsole body, a second sidewall 24 disposed on the outer side of the first midsole body, and a third sidewall 25 disposed on the rear side of the first midsole body. The first sidewall 23 is integrally connected to one end of the third sidewall 25, and the second sidewall 24 is integrally connected to the other end of the third sidewall 25. It should be noted that the first sidewall 23, the second sidewall 24, and the third sidewall 25 are integrally connected to the other end of the third sidewall 25. The sidewalls 25 transition smoothly without a clear dividing line. The second midsole 22 includes the second midsole body and the fourth sidewall 26 surrounding the periphery of the second midsole body. The side of the first sidewall 23 away from the second sidewall 24, the side of the second sidewall 24 away from the first sidewall 23, and the rear side of the third sidewall 25 are fixedly attached to the inner sidewall of the fourth sidewall 26. The first and second midsole bodies work together to form a double-layer support, and the first sidewall 23, second sidewall 24, third sidewall 25, and fourth sidewall 26 work together to form a double-layer protection, providing enhanced support for the inner and outer sides of the heel. This reduces the risk of the ankle excessively lifting and rolling to the sides during landing, resulting in relatively good support stability. At the same time, the first midsole 21 provides a soft touch, resulting in good wearing comfort.

[0023] The outsole 10 has a first perforation 27 at the position corresponding to the heel. This design not only reduces the weight of the outsole 10 but also enhances the appearance of the outsole. The bottom of the second midsole 22 is integrally connected with a first anti-slip block 28 that passes through the first perforation 27. The side wall of the first anti-slip block 28 facing the inside of the outsole 10 is designed as a stepped first anti-slip step 29. Specifically, the first anti-slip step 29 is arranged in a stepped manner from the inside to the outside of the outsole 10. This design ensures that even if the outsole 10 wears at the position corresponding to the heel, it can still maintain an effective anti-slip function.

[0024] The bottom of the outsole 10 is provided with a second hollowed-out groove 30. This design not only reduces the weight of the outsole 10, but also enhances the appearance of the outsole. One end of the second hollowed-out groove 30 is located at the position corresponding to the forefoot, and the other end of the second hollowed-out groove 30 is located at the position corresponding to the inner side of the arch. The second hollowed-out groove 30 runs through the outsole 10. The bottom of the second midsole 22 is integrally connected with a second anti-slip block 31 that passes through the first bifurcated opening groove 30. The side wall of the second anti-slip block 31 facing the outer side of the outsole 10 is provided with a second anti-slip step 32 arranged in a stepped manner. Specifically, the second anti-slip step 32 is arranged in a stepped manner along the inner side of the outsole 10 to the outer side. This design ensures that even if the outsole 10 wears at the position corresponding to the forefoot, it can still maintain an effective anti-slip function.

[0025] The front end of the outsole 10 extends upward to form a shock-absorbing strip 33. The shock-absorbing strip 33 is fixedly attached to the outer wall of the fourth side wall 26. The upper end of the shock-absorbing strip 33 is higher than the upper end of the fourth side wall 26 located at the front side of the second midsole 22. By setting the shock-absorbing strip 33, the toes are protected to a certain extent.

[0026] The heel portion includes a first heel segment and a second heel segment integrally connected to the rear end of the first heel segment. The front end of the first heel segment is integrally connected to the arch of the foot. The connection position of the first heel segment and the second heel segment corresponds to the center position of the human heel. The bottom surface of the second heel segment gradually slopes upward from the end connected to the first heel segment to the other end. It should be noted that the first heel segment and the second heel segment are smoothly transitioned and there is no obvious dividing line.

[0027] The thickness of the first sidewall 23 gradually decreases from the end connected to the third sidewall 25 to the other end. The upper end of the first sidewall 23 at the position corresponding to the heel is higher than the upper end of the fourth sidewall 26 located on the inner side of the heel. The thickness of the second sidewall 24 gradually decreases from the end connected to the third sidewall 25 to the other end. The upper end of the second sidewall 24 at the position corresponding to the heel is higher than the upper end of the fourth sidewall 26 located on the outer side of the heel. This arrangement ensures that the first sidewall 23 and the third sidewall 25 contact the foot respectively. Since the first sidewall 23 and the third sidewall 25 have low hardness, they have good flexibility.

[0028] The upper end of the third side wall 25 is lower than the upper end of the fourth side wall 26 located on the rear side of the heel. This arrangement strengthens the support of the heel and further improves the stability of the heel.

[0029] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A dual-density shoe sole, characterized in that, The shoe includes an outsole and a midsole bonded to the outsole. The midsole comprises a first midsole and a second midsole, with the first midsole bonded to the second midsole. The second midsole is designated as the forefoot portion corresponding to the forefoot, the arch portion corresponding to the arch of the foot, and the heel portion corresponding to the heel. The front end of the first midsole corresponds to the arch portion, and the rear end corresponds to the rear side of the heel portion. The hardness of the first midsole is less than that of the second midsole, and the hardness of the second midsole is less than that of the outsole. The first midsole includes a first midsole body and a... The first sidewall is located on the inner side of the first midsole body, the second sidewall is located on the outer side of the first midsole body, and the third sidewall is located at the rear side of the first midsole body. The first sidewall is integrally connected to one end of the third sidewall, and the second sidewall is integrally connected to the other end of the third sidewall. The second midsole includes a second midsole body and a fourth sidewall surrounding the periphery of the second midsole body. The side of the first sidewall away from the second sidewall, the side of the second sidewall away from the first sidewall, and the rear side of the third sidewall are respectively fixedly attached to the inner sidewall of the fourth sidewall.

2. The dual-density sole according to claim 1, characterized in that, The outsole has a first perforation at a position corresponding to the heel. The bottom of the second midsole is integrally connected with a first anti-slip block inserted into the first perforation. The sidewall of the first anti-slip block facing the inner side of the outsole is configured as a first anti-slip step arranged in a stepped manner.

3. The dual-density sole according to claim 1, characterized in that, The bottom of the outsole is provided with a second hollow groove. One end of the second hollow groove is located at a position corresponding to the forefoot, and the other end of the second hollow groove is located at a position corresponding to the inner side of the arch. The second hollow groove extends through the outsole. The bottom of the second midsole is integrally connected with a second anti-slip block inserted in the second hollow groove. The side wall of the second anti-slip block facing the outer side of the outsole is provided with a second anti-slip step arranged in a stepped manner.

4. The dual-density sole according to claim 1, characterized in that, The front end of the outsole extends upward to form an anti-collision strip, which is fixedly attached to the outer side wall of the fourth side wall. The upper end of the anti-collision strip is higher than the upper end of the fourth side wall located on the front side of the second midsole.

5. A dual-density sole according to claim 1, characterized in that, The heel portion includes a first heel segment and a second heel segment integrally connected to the rear end of the first heel segment. The front end of the first heel segment is integrally connected to the arch portion. The connection position of the first heel segment and the second heel segment corresponds to the center position of the human heel. The bottom surface of the second heel segment is arranged to gradually slope upward from the end connected to the first heel segment to the other end.

6. A dual-density sole according to claim 1, characterized in that, The thickness of the first sidewall gradually decreases from the end connected to the third sidewall to the other end, and the upper end of the first sidewall at the position corresponding to the heel is higher than the upper end of the fourth sidewall located on the inside of the heel.

7. A dual-density sole according to claim 1, characterized in that, The thickness of the second sidewall gradually decreases from the end connected to the third sidewall to the other end, and the upper end of the second sidewall at the position corresponding to the heel is higher than the upper end of the fourth sidewall at the position on the outside of the heel.

8. A dual-density sole according to claim 1, characterized in that, The upper end of the third side wall is lower than the upper end of the fourth side wall located on the rear side of the heel.

9. A dual-density sole according to claim 1, characterized in that, The second midsole is a foamed second midsole.

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