Foot cushioning device

Abstract

This utility model relates to a foot cushioning device for placement between a user's foot and the ground. The device includes: a cushioning body located between the user's foot and the ground; the cushioning body having a forefoot portion; the forefoot portion having a first support area and a second support area; wherein the first support area corresponds to a first metatarsophalangeal joint of the user's foot; the thickness of the first support area is less than the thickness of the second support area; and the thickness of the second support area gradually decreases from the outer edge of the sole to the inner edge of the sole.

Description

Technical Field

[0001] This utility model relates to a foot cushioning device, and more particularly to a foot cushioning device disposed between a user's foot and the ground. Background Technology

[0002] The human foot is composed of multiple bones connected by joints, ligaments, and tendons to maintain stability and provide propulsion. Therefore, abnormalities in the coordinated functioning of these bones, tendons, and ligaments can lead to various problems and diseases, such as the commonly diagnosed flat feet, high arches, Achilles tendinitis, and plantar fasciitis. Many shoes and insoles on the market claim to improve high arches and flat feet by providing proper arch support, hoping to reduce the adverse effects and discomfort caused by these conditions. However, these shoe and insole designs often rely on static arch models for correction and fail to consider the fundamental changes in foot movement during dynamic walking.

[0003] Research indicates that the point of force application on the sole of the foot during walking is related to the arch structure. In a normal arch structure (commonly known as the midfoot), the path of the point of maximum pressure movement during walking is as follows: 901 Figure 1a As shown, the point of maximum pressure moves from the lateral side of the calcaneus along this route to the big toe.

[0004] Figure 1b This indicates the movement path 902 of the point of maximum pressure during walking in overpronation. Due to the large inward rotation of the forefoot, the center of gravity shifts inappropriately inward during walking, causing the movement path of the point of maximum pressure to deviate inward. This makes the forefoot area 91 near the second and third toes and the inner side area 92 of the big toe prone to calluses, which are often also the areas where the soles of shoes wear out severely.

[0005] and Figure 1c This is a schematic diagram (903) showing the movement path of the point of maximum pressure during walking in supination. Suprapronation is mainly caused by a small arch collapse, with pressure biased towards the outer forefoot area (93) and the calcaneus area (94), making these areas prone to calluses and severe wear on the shoe soles.

[0006] Furthermore, research by new creative individuals has revealed that there is a correct range of foot twist during walking, but some people experience hypo-twist in their hind feet, resulting in poor gait. Utility Model Content

[0007] Therefore, in order to overcome at least some of the defects and deficiencies of the prior art, this utility model provides a foot cushioning device.

[0008] On one hand, the present invention provides a foot cushioning device for placement between a user's foot and the ground. The device includes: a cushioning body located between the user's foot and the ground; the cushioning body having a forefoot portion; the forefoot portion having a first support area and a second support area; wherein the first support area corresponds to a first metatarsophalangeal joint of the user's foot; the thickness of the first support area is less than the thickness of the second support area; and the thickness distribution of the second support area gradually decreases from the outer edge of the sole to the inner edge of the sole.

[0009] In some embodiments, the cushioning body is an insole, which is integrally molded, wherein the first support area and the second support area of ​​the forefoot portion are made using the same process and the same materials as the other parts of the insole.

[0010] In some embodiments, the cushioning body is an insole, which includes an insole base and at least one adjustment piece. The adjustment piece is located in the second support region but not in the first support region, such that the total thickness of the insole in the first support region is less than the total thickness of the insole in the second support region. The total thickness distribution of the second support region gradually decreases from the outer edge of the sole to the inner edge of the sole, so as to lift and rotate the foot supported by the second support region toward the first metatarsophalangeal joint to form an elastic arch shape, thereby finely adjusting and correcting the torsional state of the foot to a torsional state. The adjustment piece attached to the insole base is closest to the outer edge of the sole, and falls at the point where the horizontal extension line of the junction of the medial cuneiform bone and the first metatarsal bone passes.

[0011] In some embodiments, the cushioning body includes a hindfoot portion and a gait guidance structure. The material of the hindfoot portion has a first resistance to compressive deformation. The gait guidance structure is disposed on the hindfoot portion, located between the cushioning body and the ground. The hardness of the gait guidance structure material is in the range of a Shore C hardness index of 40 to 70. Furthermore, the gait guidance structure material has a second resistance to compressive deformation greater than the first resistance to compressive deformation. The gait guidance structure includes a first surface, a second surface, and a groove structure. The angle between a first side of the groove structure and the direction of extension of the transverse arch of the user's foot is... The angle is less than 30°, and the angle between the second side of the groove structure and the longitudinal arch of the user's foot is less than 30°. The depth of the groove structure gradually decreases with the extension direction of the first side. The depth of the groove structure located in the edge region of the buffer body is greater than the depth of the groove structure located in the central region of the buffer body. The thickness of the gait guidance structure gradually decreases with the extension direction of the first side to form a slope. The slope makes a first thickness between the first surface and the second surface located on the inner side of the hind foot greater than a second thickness between the first surface and the second surface located on the outer side of the hind foot.

[0012] In some embodiments, the cushioning body is an insole and is placed in the shoe, and the gait guidance structure is located between the shoe and the insole.

[0013] In some embodiments, the insole is a foam material, including one of ethylene-vinyl acetate copolymer, polyurethane, and slow-rebound sponge.

[0014] In some embodiments, the gait guidance structure has a Shore C hardness index of 65.

[0015] This utility model embodiment also provides another foot cushioning device for placement between a user's foot and the ground. The device includes: a cushioning body located between the user's foot and the ground; the cushioning body having a forefoot portion; the forefoot portion having a first support area and a second support area; wherein the first support area corresponds to a first metatarsophalangeal joint of the user's foot; the thickness of the first support area is greater than the thickness of the second support area; and the thickness distribution of the second support area gradually increases from the outer edge of the sole to the inner edge of the sole.

[0016] In some embodiments, the cushioning body is an insole, which is integrally molded, wherein the first support area and the second support area of ​​the forefoot portion are made using the same process and the same materials as other parts of the insole.

[0017] In some embodiments, the cushioning body is an insole, which includes an insole base and a plurality of adjustment pieces. The plurality of adjustment pieces are located in the first support region and the second support region, such that the total thickness of the insole in the first support region is greater than the total thickness of the insole in the second support region. Moreover, the total thickness of the second support region gradually increases from the outer edge of the sole to the inside of the sole, so as to lift the foot supported by the first support region upward to form an elastic arch shape, thereby fine-tuning and correcting the torsional state of the foot to an appropriate torsional state.

[0018] As can be seen from the above, the technical solution provided by the present utility model embodiment has at least the following beneficial effects: when a user wearing the foot cushioning device walks, the abnormal twisting pattern can be changed, thereby achieving gait correction and correcting it into a normal gait. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1a , Figure 1b and Figure 1c This is a schematic diagram showing the movement path of a user at three points of maximum pressure while walking.

[0021] Figure 2a This is a schematic diagram of the structure of a cushioning body embodiment of a foot cushioning device provided by this utility model.

[0022] Figure 2b This is a schematic diagram of another embodiment of the cushioning body of a foot cushioning device provided by this utility model.

[0023] Figure 2c A schematic diagram of the structure of one type of original material sheet provided for the manufacture of the adjustment sheet of this utility model.

[0024] Figure 2d The diagram shows the position of the original material sheet placed on a general insole base for the foot cushioning device provided by this utility model.

[0025] Figure 3a A schematic diagram of another embodiment of the cushioning body of the foot cushioning device provided by this utility model.

[0026] Figure 3bThis is a schematic diagram of another embodiment of the cushioning body of a foot cushioning device provided by this utility model.

[0027] Figure 3c This is a schematic diagram of the structure of one of the original material sheets provided by this utility model for making adjustment sheets.

[0028] Figure 3d This is a schematic diagram showing the position of the original material sheet placed on a general insole base according to the present invention.

[0029] Figure 4a A bottom view of another embodiment of the right foot insole provided by this utility model, which can be applied to a foot cushioning device.

[0030] Figure 4b A rear view of another embodiment of the right foot insole provided by this utility model, which can be applied to a foot cushioning device.

[0031] Figure 4c From Figure 4a After decomposing line segment 89, take the rear view of the cross section from the direction of arrow 88.

[0032] Figure 5a A bottom view of another embodiment of the left insole that can be applied to a foot cushioning device provided by this utility model.

[0033] Figure 5b A rear view of another embodiment of the construction of the left insole in a foot cushioning device provided by this utility model.

[0034] Figure 5c From Figure 5a Cut along line segment 89, and then view the cross-section from the direction of arrow 88. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] The bones of the foot mainly combine to form three arch-shaped structures (hereinafter collectively referred to as the arch): the medial longitudinal arch, the lateral longitudinal arch, and the transverse arch. In addition to the bones, multiple ligaments and plantar aponeurosis (commonly known as the plantar fascia) connecting the bones provide passive support for the arch. The active support and movement of the arch are provided by several intrinsic muscle groups (muscles whose origin and endpoint are both within the foot, such as the flexor digitorum brevis muscle) and extrinsic muscle groups (muscles whose origin is outside the foot and whose endpoint is within the foot, such as the peroneus longus muscle). This passive and active support gives the arch its elasticity, helping to absorb the impact of the foot striking the ground during walking or running. Furthermore, the elasticity of the arch allows the foot to adapt to uneven terrain.

[0037] Additionally, the peroneus longus muscle connects at one end to the lateral surface of the proximal fibula, then runs along the lateral malleolus around the sole of the foot, while the other end branches and connects to the base of the medial cuneiform (MC) and the first metatarsal. The primary function of the peroneus longus is to provide the traction that allows the foot to twist, thus forming an elastic arch before the foot lands. As for the tibialis posterior muscle, which maintains foot stability, it is a tendon located deep in the posterior aspect of the lower leg. One end connects to the posterior surfaces of the tibia and fibula, then extends downwards past the medial malleolus and into the sole of the foot. The other end connects to the navicular tubercle and attaches to the medial, intermediate, and lateral cuneiforms, as well as the bases of the second, third, and fourth metatarsal bones. Its main function is to stabilize the foot and ankle through plantar flexion and inversion, and to support the medial longitudinal arch. The adductor hallucis muscle has two heads: an oblique head and a transverse head. The oblique head originates from the base of the second to fourth metatarsals and the peroneus longus tendon. The transverse head originates from the plantar metatarsophalangeal ligaments and the deep transverse metatarsal ligament of the third, fourth, and little toes. These two heads converge and connect to the proximal phalanx of the great toe.

[0038] Therefore, from a biomechanical perspective, the medial cuneiform (MC) and the first metatarsal should be classified into the first group. The distal phalanx and proximal phalanx of the big toe, along with the distal, intermediate, and proximal phalanxes of the other four toes, are classified into the second group. The first metatarsophalangeal joint serves as the boundary between the two groups, thus establishing a double helix model for the foot. The medial, intermediate, and lateral cuneiforms belong to the intersectional zone between the first and second groups in this double helix model.

[0039] Research has revealed foot twist patterns. A normal twist pattern allows the foot to form an elastic arch when not bearing weight, contributing to a correct gait. Abnormal foot twist patterns are mainly divided into two types: hypo-twist and hyper-twist. To improve gait from this perspective and provide a better solution for foot cushioning, this invention proposes the following technical means and embodiments to address the above problems.

[0040] When the peroneus longus muscle cannot provide sufficient tension, the foot twisting pattern will exhibit hypo-twist. Therefore, this invention proposes... Figure 2aThe diagram shows a schematic representation of the cushioning body embodiment. This cushioning body can be an outsole or an insole; this diagram uses the insole 20 of the right foot as an example, superimposed with an X-ray image of the right foot's skeleton for illustration. Since the two sets of bones in the aforementioned double helix model are primarily separated by the first metatarsophalangeal joint 200, this embodiment provides a first support region 201 on the cushioning body corresponding to the first metatarsophalangeal joint 200, and a second support region 202 in the remaining area of ​​the forefoot. The thickness of the insole 20 in the first support region is less than the thickness of the insole 20 in the second support region, and the thickness distribution of the insole 20 in the second support region 202 gradually decreases from the outer edge of the sole (as shown by line segment 2020) towards the interior of the sole. In this way, the foot supported by the second support area 202 can be lifted and slightly rotated towards the first metatarsophalangeal joint 200 to form an elastic arch shape, thereby finely adjusting and correcting the foot's torsional posture to an appropriate one. The insole 20 can be integrally molded, and the first support area 201, the second support area 202, and other parts of the insole can all be made using the same process and materials.

[0041] In addition, for the convenience of customization, it is also possible to... Figure 2b The schematic diagram of another embodiment of the cushioning body shown illustrates that one or more adjustment pieces 21 are attached to a second support region 202 on an insole base, while no adjustment pieces are attached to the first support region 201. This creates a change in the total thickness of the first support region 201 and the second support region 202, thereby meeting the thickness requirement that "the total thickness of the insole 20 in the first support region is less than the total thickness of the insole 20 in the second support region, and the thickness distribution of the second support region 202 gradually decreases from the outer edge of the sole to the inner edge of the sole." This lifts the outer edge of the foot supported by the second support region 202 and slightly rotates it towards the first metatarsophalangeal joint 200, forming an elastic arch shape, thereby fine-tuning and correcting the foot's torsional posture to an appropriate torsional posture. The adjustment piece 21 can be attached between the insole base and the user's foot, or between the insole base and the outsole. The attached adjustment piece 21 is closest to the outer edge of the sole (as shown in the outer corner 218 in the figure), and approximately falls at the point where the horizontal extension line 219 of the junction of the medial cuneiform (MC) and the first metatarsal bone, which is classified as the first group in this invention, passes.

[0042] Please see again Figure 2cThis invention provides a raw material sheet 29 for manufacturing the aforementioned adjustment piece 21. The raw material sheet 29 is essentially a disc (160mm in diameter in this example), with the thickest portion at the edge (5mm in this example, but other thicknesses can be used to create different slopes), gradually decreasing towards the center. The central area of ​​the disc can even be a hollow area 290 (44mm in diameter in this example). As for... Figure 2d This diagram illustrates the placement of the original material sheet 29 on a universal insole base 28. As can be clearly seen, through appropriate cutting, one or more adjustment pieces 21 of suitable size for the second support area 202 can be obtained. The hollowed-out area 290 is located at the first support area 201, and one original material sheet 29 can be used to make two to three universal insole bases 28. The adjustment piece 21 achieves the requirement that the total thickness of the insole 20 in the first support area is less than the total thickness of the insole 20 in the second support area, and that the total thickness of the second support area 202 gradually decreases from the outer edge of the sole towards the inward side of the sole. This lifts the outer edge of the foot supported by the second support area 202 and slightly rotates it towards the first metatarsophalangeal joint 200 to form an elastic arch shape, thereby fine-tuning and correcting the foot's torsional posture to an appropriate torsional posture.

[0043] Furthermore, when the peroneus longus muscle provides excessive tension, the foot twisting pattern will exhibit hyper-twist. Therefore, this invention proposes... Figure 3a The diagram shows a schematic representation of the cushioning body embodiment. This cushioning body can be an outsole or an insole; this diagram uses the insole 30 of the right foot as an example, superimposed with an X-ray image of the right foot's skeleton for illustration. Since the two sets of bones in the aforementioned double helix model are primarily separated by the first metatarsophalangeal joint 200, this embodiment provides a first support region 301 on the cushioning body corresponding to the first metatarsophalangeal joint 200, and a second support region 302 in the remaining area of ​​the forefoot. The thickness of the insole 30 in the first support region 301 is greater than the thickness of the insole 30 in the second support region, and the thickness distribution of the insole 30 in the second support region 202 gradually increases from the outer edge of the sole (as shown by line segment 3020) towards the interior of the sole. In this way, the foot supported in the first support area 301 (or the first metatarsophalangeal joint 200) can be lifted upward to form an elastic arch shape, thereby finely adjusting and correcting the torsional state of the foot to an appropriate torsional state. The insole 30 can be made in one piece, and the first support area 301, the second support area 302, and other parts of the insole can all be made using the same process and the same materials.

[0044] In addition, for the convenience of customization, it is also possible to... Figure 3b The schematic diagram of another embodiment of the cushioning body shown illustrates that an adjustment piece 31 is attached to a first support area 301 on an insole base, and one or more adjustment pieces 32 are attached to a second support area 302. This causes a change in the total thickness of the first support area 301 and the second support area 302, thereby meeting the thickness requirement that "the total thickness of the insole 30 in the first support area is greater than the total thickness of the insole 20 in the second support area, and the total thickness distribution of the second support area 202 gradually increases from the outer edge of the sole to the inside of the sole". This is used to lift the foot supported in the first support area 301 (or the first metatarsophalangeal joint 200) upward to form an elastic arch shape, thereby finely adjusting and correcting the torsional state of the foot to an appropriate torsional state.

[0045] Please see again Figure 3c This utility model provides a raw material sheet 39 for manufacturing the aforementioned adjustment pieces 31 and 32. The raw material sheet 39 is essentially a disc (160mm in diameter in this example), with the thickest area 390 in the center (5mm in this example; however, it can be set to different thicknesses to achieve different slopes; in this example, the diameter of the center area is 44mm), gradually decreasing towards the circumference. As for... Figure 3d This is a schematic diagram showing the placement of the original material sheet 39 on a universal insole base 38. As can be clearly seen from the diagram, through appropriate cutting, an adjustment piece 31 of suitable size can be obtained for the first support area 301, and one or more adjustment pieces 32 can be attached to the second support area 302. One original material sheet 39 can be used to make two to three universal insole bases 38. The adjustment pieces 31 and 32 can achieve the thickness requirement that "the total thickness of the insole 30 in the first support area is greater than the total thickness of the insole 20 in the second support area, and the total thickness distribution of the second support area 202 gradually increases from the outer edge of the sole to the inside of the sole". This is used to lift the foot supported in the first support area 301 (or the first metatarsophalangeal joint 200) upward to form an elastic arch shape, thereby fine-tuning and correcting the torsional state of the foot to an appropriate torsional state.

[0046] Please see again Figure 4a , Figure 4b The content is a schematic diagram of another embodiment of the present invention that can be applied to a foot cushioning device, wherein... Figure 4a This is a bottom view of the foot cushioning device, and Figure 4b From Figure 4aThe rear view is shown in the direction of arrow 88. The foot cushioning device can be positioned between the user's foot (not shown in this figure) and the ground (not shown in this figure). In this example, the foot cushioning device includes at least a cushioning body 80 and a step guide structure 81, wherein the cushioning body 80 is located between the user's foot and the ground, and the user's foot contacts a contact surface 800 of the cushioning body 80. The cushioning body 80 has a rear foot portion 801, and the material of the rear foot portion 801 has a first resistance to compressive deformation. The cushioning body 80 of this invention is an insole structure, which can be made of foam materials, such as EVA (ethylene-vinyl acetate copolymer), PU (polyurethane), and memory foam (slow rebound foam).

[0047] The gait guidance structure 81 is disposed on the hind foot part 801, located between the buffer body 80 and the ground. The hardness range of the material of the gait guidance structure 81 is approximately between 40 and 70 in the Shore C hardness index. After multiple tests, the preferred hardness range is around 65 in the Shore C hardness index. Furthermore, the second compressive deformation resistance of the gait guidance structure material is greater than the first compressive deformation resistance. The gait guidance structure 81 is located near the edge of the forefoot, approximately at the anterior edge of the heel bone. This structure includes a first surface 811, a second surface 812, and a groove structure 813. A first side 8131 of the groove structure 813 is nearly parallel to the extension direction of the transverse arch of the user's foot when placed on the insole structure (parallelism is the preferred implementation, but a rotation of ±30 degrees is acceptable, i.e., the angle between the two is less than or equal to 30°). A second side 8132 of the groove structure 813 is nearly parallel to the extension direction of the longitudinal arch of the user's foot (parallelism is the preferred implementation, but a rotation of ±30 degrees is acceptable, i.e., the angle between the two is less than or equal to 30°). The depth of the groove structure 813 gradually decreases along the extension direction of the first side 8131. The depth of the groove structure located in the edge region of the cushioning body is greater than the depth of the groove structure located in the central region of the cushioning body. In addition, the thickness of the gait guidance structure 81 gradually decreases along the extension direction of the first side to form a slope 810. The slope 810 makes a first thickness 8101 between the first surface and the second surface of the inner side 814 of the hind foot greater than a second thickness 8102 between the first surface and the second surface of the outer side 815 of the hind foot.

[0048] When the user walks, the inclined surface 810 guides the user's hind foot to initially be in a relatively twisted state after full contact with the ground. Then, due to the easily deformable groove structure, the hind foot is further guided to avoid hypo-twist, thereby correcting the gait. Here, the twisted state of the foot refers to the natural state of the foot during the swing phase, while the untwisted state refers to the force-bearing state of the foot during the stance phase. Preferably, the gait guidance structure 81 can be integrated with the embodiment shown in Figure 2, with the aforementioned foot twisted states respectively located on the hind foot and forefoot, thus achieving a dual functional enhancement.

[0049] As for Figure 4c Then it is from Figure 4a Cutting through line segment 89 and looking at the cross-section from the direction of arrow 88, it is clear that the depth of the groove structure 813 gradually decreases along the extension direction of the first side 8131, and the depth of the groove structure located in the edge region of the buffer body is greater than the depth of the groove structure located in the central region of the buffer body. In this example, the bottom surface 8130 of the groove structure 813 is a plane, so the cross-sectional line of its bottom surface 8130 is a straight line as seen in the figure, but this is not a limitation. In other designs, the bottom surface 8130 of the groove structure 813 can be a curved surface, as long as the depth of the groove structure 813 gradually decreases along the extension direction of the first side 8131, and the depth of the groove structure located in the edge region of the buffer body is greater than the depth of the groove structure located in the central region of the buffer body, so the cross-sectional line seen in the figure is a convex line or a concave line. Figure 4a , Figure 4b , Figure 4c The explanations all use the right insole as an example; the explanation for the left insole is as follows. Figure 5a , Figure 5b , Figure 5c As shown, it is mainly a mirror image with the center of the body as the axis, and the details will not be repeated.

[0050] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the inventive purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A foot cushioning device, characterized by, For placement between a user's foot and the ground, the device includes: a cushioning body located between the user's foot and the ground, the cushioning body having a forefoot portion, the forefoot portion having a first support area and a second support area, wherein the first support area corresponds to a first metatarsophalangeal joint of the user's foot, the thickness of the first support area is less than the thickness of the second support area, and the thickness distribution of the second support area gradually decreases from the outer edge of the sole to the inner edge of the sole.

2. The foot cushioning device of claim 1, wherein, The cushioning body is an insole, which is made in one piece. The first support area and the second support area of ​​the forefoot part are made using the same process and the same materials as the other parts of the insole.

3. The foot cushioning device of claim 1, wherein, The cushioning body is an insole, which includes an insole base and at least one adjusting piece. The adjusting piece is located in the second support area but not in the first support area, so that the total thickness of the insole in the first support area is less than the total thickness of the insole in the second support area. The total thickness distribution of the second support area gradually decreases from the outer edge of the sole to the inside of the sole, so as to lift the foot supported by the second support area towards the first metatarsophalangeal joint and rotate it to form an elastic arch shape, thereby finely adjusting and correcting the torsional state of the foot to the torsional state of the foot. The adjusting piece attached to the insole base is closest to the outer edge of the sole and falls at the intersection of the medial cuneiform bone and the first metatarsal bone.

4. The foot cushioning device of claim 1, wherein, The cushioning body includes a rear foot portion and a gait guidance structure. The material of the rear foot portion has a first resistance to compressive deformation. The gait guidance structure is disposed on the rear foot portion, located between the cushioning body and the ground. The hardness of the gait guidance structure material is between 40 and 70 on the Shore C hardness index. Furthermore, the gait guidance structure material has a second resistance to compressive deformation greater than the first resistance to compressive deformation. The gait guidance structure includes a first surface, a second surface, and a groove structure. The angle between a first side of the groove structure and the direction of extension of the transverse arch of the user's foot is less than 30 degrees. °, and the angle between the second side of the groove structure and the longitudinal arch of the user's foot is less than 30°. The depth of the groove structure gradually decreases with the extension direction of the first side. The depth of the groove structure located in the edge region of the buffer body is greater than the depth of the groove structure located in the central region of the buffer body. The thickness of the gait guidance structure gradually decreases with the extension direction of the first side to form a slope. The slope makes a first thickness between the first surface and the second surface located on the inner side of the hind foot greater than a second thickness between the first surface and the second surface located on the outer side of the hind foot.

5. The foot cushioning device of claim 4, wherein, The cushioning body is an insole, and the cushioning body is placed in the shoe. The gait guidance structure is located between the shoe and the insole.

6. The foot cushioning device of claim 5, wherein, The insole is made of foam material, which includes one of ethylene-vinyl acetate copolymer, polyurethane, and slow rebound sponge.

7. The foot cushioning device of claim 4, wherein, The gait guidance structure has a Shore C hardness index of 65.

8. A foot cushioning device, comprising: For placement between a user's foot and the ground, the device includes: a cushioning body located between the user's foot and the ground, the cushioning body having a forefoot portion, the forefoot portion having a first support area and a second support area, wherein the first support area corresponds to a first metatarsophalangeal joint of the user's foot, the thickness of the first support area is greater than the thickness of the second support area, and the thickness distribution of the second support area gradually increases from the outer edge of the sole to the inner edge of the sole.

9. The foot cushioning device as described in claim 8, characterized in that, The cushioning body is an insole, which is made in one piece. The first support area and the second support area of ​​the forefoot part are made using the same process and the same materials as the other parts of the insole.

10. The foot cushioning device of claim 8, wherein, The cushioning body is an insole, which includes an insole base and a plurality of adjustment pieces. The plurality of adjustment pieces are located in the first support area and the second support area, such that the total thickness of the insole in the first support area is greater than the total thickness of the insole in the second support area. Moreover, the total thickness of the second support area gradually increases from the outer edge of the sole to the inside of the sole, so as to lift the foot supported by the first support area upward to form an elastic arch shape, thereby finely adjusting and correcting the torsional state of the foot to an appropriate torsional state.

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