Motion mechanics compensation insole based on 3D printing technology
The biomechanical compensating insoles manufactured using 3D printing technology solve the problem of insufficient support in traditional insoles, providing better support and cushioning, reducing impact and improving gait stability, and adapting to individual needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU INNOECO MEDICAL TECH CO LTD
- Filing Date
- 2025-01-15
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional insoles cannot provide sufficient support and direction for the feet, resulting in poor gait stability, affecting muscle activation efficiency, and potentially causing lower limb injuries.
The biomechanical compensating insoles, manufactured using 3D printing technology, provide better support and cushioning by adding support structures at the heel and arch, including support surrounds and compensating support bodies, and can be customized to fit different shoe shapes.
It enhances foot support, reduces the impact force generated by reaction force, provides a boosting effect, and is breathable, easy to recycle, and adaptable to different pace requirements.
Smart Images
Figure CN224141016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of additive manufacturing orthotic insoles, and in particular to orthotic insoles used in shoes and providing mechanical compensation for the heel. Background Technology
[0002] Insoles, typically fitted onto the inner surface of shoe soles, are soft pads designed to absorb body weight and the forces and reactions generated by the foot against the ground during walking. They are usually flexible or non-flexible sheet-like structures shaped similarly to the inner surface of the shoe sole, positioned between the foot and the inner surface of the shoe sole to increase comfort and support for the legs and feet, reducing the impact force generated during walking, running, or similar activities when the heel strikes the ground. Traditional insoles are usually thin, sheet-like structures of uniform thickness. These insoles have a single function, typically designed for easy removal and cleaning of the shoe cavity. However, research in biomechanics has revealed that flat insoles cannot provide sufficient support and direction during exercise. The foot can easily slide within the shoe cavity, resulting in poor gait stability. This can affect muscle activation efficiency, increase the load on the lower limbs, and in severe cases, cause lower limb injuries. Utility Model Content
[0003] In view of at least one of the above-mentioned technical problems, this utility model provides a biomechanical compensation insole based on 3D printing technology. By adding support structures at the heel and arch, it provides sufficient support force and direction to the foot, achieving a biomechanical compensation effect, thereby reducing the burden on the user's lower limbs. The specific technical solution is as follows:
[0004] A 3D-printed biomechanical compensating insole includes an insole body, which includes a pad plate whose bottom shape corresponds to the inner surface of the shoe sole. The insole body also includes a support enclosure integrally formed on the outer edge of the upper surface of the rear half of the pad plate. The insole body is a mesh structure made of thermoplastic rigid material. The pad plate has a groove at a position corresponding to the calcaneus. The insole body also includes a compensating support body disposed in the groove, the upper surface of which protrudes from the upper surface of the pad plate. The compensating support body is a mesh structure made of thermoplastic elastomer material.
[0005] In some embodiments of this disclosure, the bottom outer contour of the pad has a chamfered structure.
[0006] In some embodiments of this disclosure, the thickness of the rear half of the pad is greater than that of the front half, and the change in thickness is a gradual transition.
[0007] In some embodiments of this disclosure, the thickness of the base of the support enclosure is greater than the thickness of its top, and the change in thickness is a gradual transition.
[0008] In some embodiments of this disclosure, the support enclosure has a gradually rounded protrusion at the position corresponding to the arch of the foot.
[0009] In some embodiments of this disclosure, the cross-section of the settling tank is circular.
[0010] In some embodiments of this disclosure, the cross-section of the settling tank is elliptical and the major axis of this ellipse is arranged along the length of the pad.
[0011] In some embodiments of this disclosure, the top surface of the compensating support is an arc-shaped top, and the arc-shaped top transitions to the upper surface of the pad with a curved surface.
[0012] In some embodiments of this disclosure, the inner surface of the pad body that comes into contact with the feet is provided with a fabric lining.
[0013] In some embodiments of this disclosure, the inner surface of the pad body that comes into contact with the foot is provided with an anti-slip structure.
[0014] Compared with existing technologies, the above-mentioned biomechanical compensation insoles based on 3D printing technology have the following beneficial effects:
[0015] The technical solution of this design, through the setting of supporting barriers and compensating support bodies, adds a surrounding support and cushioning structure to the arch and heel. The mesh structure can provide users with better and more uniform support. The compensating support body set at the heel bone can provide good mechanical compensation for the user's heel, which can not only further reduce the impact force on the sole of the foot caused by the reaction force during the user's activities, but also provide corresponding assistance for the user's foot lifting movements.
[0016] The insole body of this mesh frame structure will not absorb moisture, and the sweat stored inside the insole can be quickly dissipated through the gaps in the structure after the insole is removed.
[0017] The pad body of this design can be directly manufactured using 3D printing technology, which can match personalized customization and mass production of different shoe types. It is easy to manufacture and convenient for market promotion.
[0018] It is easy to recycle and is energy-saving and environmentally friendly. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of the present utility model from one perspective;
[0020] Figure 2This is a three-dimensional schematic diagram from the second perspective of Embodiment 1 of the present utility model.
[0021] Figure 3 This is a three-dimensional schematic diagram from the third perspective of Embodiment 1 of the present utility model.
[0022] Figure 4 for Figure 3 A magnified view of part A in the middle;
[0023] The labels in the diagram are as follows: 1. Pad body; 11. Pad plate; 12. Support enclosure; 13. Compensating support; 2. Fabric lining. Detailed Implementation
[0024] To better understand the purpose, structure, and function of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application. The terms "comprising" and "equivalent to," and any variations thereof, are open-ended and intended to cover non-exclusive inclusion.
[0025] The serial numbers assigned to components in this document are solely for distinguishing the objects described and have no sequential or technical meaning. In the description of this application, it should be understood that the directional terms "front half" and "back half" indicate a location or positional relationship where the area from the middle of the metatarsal body to the heel is considered the back half, and the remaining portion is considered the front half. "Upper" and "lower" are defined based on the positional relationship during use. These positional relationships are merely for descriptive convenience and do not indicate or imply that the device or unit referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0026] As shown in the attached diagram. Figures 1 to 4As shown, a biomechanical compensation insole based on 3D printing technology is designed, including an insole body 1. The insole body 1 includes a pad 11, which is a sheet with a bottom shape corresponding to the inner surface of the sole. The insole body 1 also includes a support ring 12, which is integrally formed on the outer edge of the upper surface of the rear half of the pad 11. It should be noted that the directional terms "front half" and "rear half" indicate the location or positional relationship from the middle of the metatarsal body to the heel. The first half consists of the rear section, and the remaining part is the front half. The pad body 1 is a thermoplastic rigid material mesh structure. The pad plate 11 has a groove at the corresponding position of the heel bone. The pad body 1 also includes a compensating support 13 disposed in the groove. The upper surface of the compensating support 13 protrudes from the upper surface of the pad plate 11. The compensating support 13 is a thermoplastic elastomer material mesh structure, and the hardness of the compensating support 13 is less than the hardness of the pad plate 11. This design... The technical solution, through the setting of the supporting barrier 12 and the compensating support body 13, adds a surrounding support and cushioning structure to the arch and heel, and the mesh structure can provide the user with better and more uniform support. The compensating support body 13, set at the heel bone, can provide good mechanical compensation for the user's heel, which can not only further reduce the impact force on the sole of the foot caused by the reaction force during the user's activities, but also provide corresponding assistance for the user's foot lifting movements. After use, the pad body of the mesh structure of this design will not absorb moisture. After the insole is removed, the sweat stored in the insole can be quickly dissipated through the structural gaps, which is conducive to the user's foot hygiene maintenance and has a significant breathability effect during use. The pad body of this design can be directly manufactured using 3D printing technology, which can match personalized customization and mass production of different shoe models. It is easy to manufacture and convenient for market promotion. The discarded and damaged pad body 1 can be recycled, which is energy-saving and environmentally friendly.
[0027] The above embodiments illustrate three examples of implementing the aforementioned technical solutions. The term "embodiment" as used herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various locations within the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Where there is no conflict, the various embodiments in this application can be combined with each other.
[0028] Embodiment 1 discloses a biomechanical compensation insole based on 3D printing technology, including an insole body 1. The insole body 1 includes a pad 11, which is a sheet with a bottom shape corresponding to the inner surface of the sole. The insole body 1 also includes a support ring 12, which is integrally formed on the outer edge of the upper surface of the rear half of the pad 11. It should be noted that the directional terms "front half" and "rear half" indicate the location or positional relationship from the middle of the metatarsal body to the heel. The first half consists of the rear section, and the remaining part is the front half. The pad body 1 is a thermoplastic rigid material mesh structure. The pad plate 11 has a groove at the corresponding position of the heel bone. The pad body 1 also includes a compensating support 13 disposed in the groove. The upper surface of the compensating support 13 protrudes from the upper surface of the pad plate 11. The compensating support 13 is a thermoplastic elastomer material mesh structure, and the hardness of the compensating support 13 is less than the hardness of the pad plate 11. This design... The technical solution, through the setting of the supporting barrier 12 and the compensating support body 13, adds a surrounding support and cushioning structure to the arch and heel, and the mesh structure can provide users with better and more uniform support. The compensating support body 13, set at the heel bone, can provide good mechanical compensation for the user's heel, which can not only further reduce the impact force on the sole of the foot caused by the reaction force during the user's activities, but also provide corresponding assistance for the user's foot lifting movements. After use, the pad body of the mesh structure of this design will not absorb moisture. After the insole is removed, the sweat stored in the insole can be quickly dissipated through the structural gaps, which is conducive to the user's foot hygiene maintenance and has a significant breathability effect during use. The pad body of this design can be directly manufactured using 3D printing technology, which can match personalized customization and mass production of different shoe types. It is easy to manufacture and convenient for market promotion. The discarded and damaged pad body 1 can be recycled, which is energy-saving and environmentally friendly.
[0029] The thermoplastic rigid material can be a combination of thermoplastic polymer and inorganic filler. The thermoplastic polymer can be at least one of polycaprolactone, polyethylene terephthalate, polyvinylpyrrolidone, polydimethylsiloxane, polyetheretherketone, polyvinyl acetate, polymethyl methacrylate, polylactic acid, polyvinyl alcohol, polyhydroxyalkanoate, or glucomannan. The inorganic filler can be at least one of calcium carbonate, titanium dioxide, silica, or kaolin. The thermoplastic elastomer can be at least one of styrene-based TPE, olefin-based TPE, diene-based TPE, vinyl chloride-based TPE, or polyurethane-based TPE.
[0030] Example 2 discloses a kinetic compensating insole based on 3D printing technology. The difference between this example and Example 1 is that the bottom outer contour of the pad 11 has a chamfered structure to better fit the inner cavity of the shoe, reduce gaps at the edges, and prevent the edges from lifting up due to contact during use. The thickness of the rear half of the pad 11 is greater than that of the front half, and the thickness change is gradual, which can achieve a slight internal height increase function and further reduce the pressure on the heel. The thickness of the base of the support body 12 is greater than that of the top, and the thickness change is gradual, so that the upper part of the support body 12 can fit the inner surface of the shoe, reduce gaps at the edges, and prevent the edges from lifting up due to contact during use.
[0031] With further optimized design, the support enclosure 12 has a gradually rounded protrusion at the corresponding arch position, which can better match the arch and achieve the effect of supporting the foot.
[0032] like Figures 1 to 4 As shown, Embodiment 3 discloses a biomechanical compensation insole based on 3D printing technology. The difference between this embodiment and Embodiment 2 is that the cross-section of the sinker can be circular or elliptical. When the cross-section of the sinker is elliptical, the major axis of this ellipse is arranged along the length of the pad 11, allowing the softer compensation support 13 to have more contact with the heel, thereby further improving the user experience. In this embodiment, the top surface of the compensation support 13 is an arc-shaped top, and the arc-shaped top is aligned with the upper surface of the pad 11. The surface adopts a curved transition, which allows the pad body 1 to achieve better overall integrity. In this embodiment, the inner surface of the pad body 1 that is in contact with the foot is provided with a fabric lining 2. The fabric lining 2 is bonded to the upper surface of the pad body 1. The fabric lining can be made of soft materials such as fleece or synthetic fiber fabric as needed. The inner surface of the pad body 1 that is in contact with the foot is provided with an anti-slip structure. The anti-slip structure can be an anti-slip ridge, anti-slip dot, or anti-slip groove, etc., with the main purpose of increasing the contact area of the pad body 1 with the foot.
[0033] It is understood that the above description is only for illustrating specific implementation methods of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of disclosure of this application.
Claims
1. A biomechanical compensation insole based on 3D printing technology, comprising an insole body (1), wherein the insole body (1) includes a pad (11), wherein the pad (11) is a sheet with a bottom shape corresponding to the inner surface of the shoe sole, characterized in that: The pad body (1) also includes a support enclosure (12), which is integrally formed on the outer edge of the upper surface of the rear half of the pad plate (11); the pad body (1) is a grid structure made of thermoplastic rigid material; the pad plate (11) has a groove at the position corresponding to the heel bone of the foot, and the pad body (1) also includes a compensating support (13) disposed in the groove, the upper surface of the compensating support (13) protruding from the upper surface of the pad plate (11), and the compensating support (13) is a grid structure made of thermoplastic elastomer material.
2. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The bottom outer contour of the pad (11) is provided with a chamfer structure.
3. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The thickness of the rear half of the pad (11) is greater than that of the front half, and the change in thickness is a gradual transition.
4. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The thickness of the base of the support enclosure (12) is greater than that of its top, and the change in thickness is a gradual transition.
5. The 3D printing technology based kinematics compensating insole of claim 4, wherein, The supporting body (12) has a gradually rounded protrusion at the corresponding arch position.
6. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The cross-section of the settling tank is circular.
7. The biomechanical compensation insole based on 3D printing technology according to claim 1, characterized in that, The cross-section of the settling tank is elliptical and the major axis of this ellipse is arranged along the length of the pad (11).
8. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The top surface of the compensating support (13) is an arc top, and the arc top and the upper surface of the pad (11) are connected by a curved surface transition.
9. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The pad body (1) has a fabric lining (2) on its inner surface that comes into contact with the feet.
10. The 3D printing technology based kinematics compensating insole for sports according to claim 1, characterized in that, The pad body (1) has an anti-slip structure on its inner surface that comes into contact with the foot.