Functional 3D printing insole with multi-color and multi-hardness embedded module

Abstract

The utility model belongs to the technical field of insoles, and particularly relates to a functional 3D (three-dimensional) printing insole with a multicolor and multi-hardness embedded module, which comprises an insole substrate, and a supporting part for supporting a sole is arranged on the upper end surface of the insole substrate corresponding to the sole of a human body. The supporting part comprises a front sole area for supporting a front sole, a rear heel area for supporting a rear heel and an arch area; the shoe pad base, the front sole area, the rear heel area and the arch area are different in supporting force for the foot, the shoe pad base, the front sole area, the rear heel area and the arch area are formed by printing materials with different hardness through a 3D printer, and the upper end face of the shoe pad base is provided with the front sole area, the rear heel area, the arch area and other areas corresponding to the sole of the human body. Each partition is printed by selecting different materials according to different supporting forces on the foot, so that the hardness sensed by each part of the sole surface is different under the condition of better fitting the sole surface.

Description

Technical Field

[0001] The utility model relates to the technical field of insoles, in particular to a functional 3D printing insole with multi-color and multi-hardness embedded modules. Background Art

[0002] Existing insoles are generally mass-produced. For different people, there are differences in the foot sole structures. It is difficult for mass-produced insoles to fit perfectly with the foot soles. Moreover, everyone has different walking postures, resulting in different forces when the foot soles contact the ground. If a customized insole that matches oneself is needed, a mold has to be made separately according to one's own situation, which is relatively expensive. With the development of 3D printing technology and its increasingly wide application scope, it is relatively simple and inexpensive to make insoles through 3D printing technology, and it is convenient to make insoles that match oneself.

[0003] For example, the document with the publication number of CN206197214U in the prior art provides a 3D printing insole. The device includes a support layer with a hollow structure woven by filling units; the hollow structure is distributed on the surface and inside of the support layer; the hollow structure is the hollow part of the filling unit itself and / or formed by weaving adjacent filling units. The support layer of the utility model is woven by filling units, and the hollow structure of the insole is the hollow part of the filling unit itself or formed between adjacent filling units, which improves the elasticity, comfort and durability of the insole.

[0004] Although the device has many beneficial effects, there are still the following problems: when making the insole through 3D printing technology, the device is usually woven throughout with one kind of material, resulting in the same overall hardness of the insole. Although it can fit well with the foot sole, the hardness felt in all areas of the foot sole is the same, and there is no better experience. In view of this, we propose a functional 3D printing insole with multi-color and multi-hardness embedded modules. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, the overall insole is usually woven throughout with one kind of material, resulting in the same overall hardness of the insole. Although it can fit well with the foot sole, the hardness felt in all areas of the foot sole is the same, and there is no better experience. The utility model proposes a functional 3D printing insole with multi-color and multi-hardness embedded modules.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A functional 3D printing insole with multi-color and multi-hardness embedded modules of the present utility model includes an insole base. On the upper end face of the insole base corresponding to the human foot sole, there is a supporting part for supporting the foot sole. The supporting part includes a front foot area for supporting the front foot sole, a heel rear area for supporting the rear heel, and an arch area; the insole base, the front foot area, the heel rear area, and the arch area are formed by using 3D printers to print with materials of different hardnesses respectively due to different supporting forces on the foot.

[0007] Preferably, the supporting part includes a front foot area and a heel rear area. The front foot area is respectively a first front sole partition and a second front sole partition, and the heel rear area includes a first heel partition and a second heel partition.

[0008] Preferably, the insole base includes at least one layer structure of a base layer. A first buffer layer can be further arranged above the base layer, and a second buffer layer is arranged above the first buffer layer.

[0009] Preferably, the internal printing structure of the insole base and the supporting part includes a honeycomb structure, a spiral body, or a grid-shaped structure in cross-section.

[0010] Preferably, the inclination angle of the upper end face of the heel rear area from back to front is α, and the angle range of α is 3 - 8°.

[0011] Preferably, the front foot area, the heel rear area, and the arch area have different printing heights.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By arranging a front foot area, a heel rear area, an arch area, etc. on the upper end face of the insole base corresponding to the human foot sole, and selecting different materials for printing according to different supporting forces on the foot for each partition, in the case of being more fitting to the foot sole surface, the hardness felt by each part of the foot sole surface is different, making the person more comfortable when walking and having a better experience.

[0014] 2. For each area of the insole base and the supporting part of the present utility model, according to different supporting forces on the foot, the internal printing structure can be printed with a relatively soft structure or a structure with stronger supporting force, so that the supporting force of each area is different, meeting different usage requirements. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 Schematic plan view of Embodiment 1 of the present invention;

[0017] Figure 2 Isometric view of Embodiment 2 of the present invention;

[0018] Figure 3 Cross-sectional view of the honeycomb printing structure of Embodiment 1 of the present invention;

[0019] Figure 4 Cross-sectional view of the triangular printing structure of Embodiment 1 of the present invention;

[0020] Figure 5 Enlarged cross-sectional view of the insole base of Embodiment 1 of the present invention;

[0021] Figure 6 Enlarged cross-sectional view of the heel rear area and the insole base of Embodiment 1 of the present invention.

[0022] In the figure: 1, insole base; 2, forefoot area; 3, heel rear area; 4, arch area; 11, base layer; 12, first buffer layer; 13, second buffer layer; 21, first forefoot partition; 22, second forefoot partition; 31, first heel partition; 32, second heel partition. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] Embodiment 1

[0025] Please refer to Figure 1As shown in the figure, a functional 3D printed insole with multi-color and multi-hardness embedded modules includes an insole base 1. On the upper end face of the insole base 1, a support part for supporting the human foot sole is arranged corresponding to the foot sole of the human body. The support part includes a front foot area 2 for supporting the front foot sole, a rear heel area 3 for supporting the rear heel, and an arch area 4; the insole base 1, the front foot area 2, the rear heel area 3, and the arch area 4 are respectively printed with materials of different hardnesses by using a 3D printer according to the different support forces on the foot.

[0026] When using a 3D printer to print the insole, according to the user's foot sole data and walking habits, first select a suitable printing material to print and produce the insole base 1, and then use materials of different hardnesses to print a support mechanism for supporting the foot sole on the front foot area 2, the rear heel area 3, and the arch area 4 on the insole base 1. The printing heights of each area in the front foot area 2, the rear heel area 3, and the arch area 4 are different, so that the insole can fit each area of the foot sole more closely, with better support effect and better wearing comfort.

[0027] After each area is printed separately, the user needs to assemble it to form a pair of insoles that meet their own needs.

[0028] By arranging a front foot area 2, a rear heel area 3, an arch area 4, etc. on the upper end face of the insole base 1 corresponding to the foot sole of the human body, and selecting different materials for printing according to the different support forces on the foot, in the case of fitting the foot sole more closely, the hardness felt by each part of the foot sole is different, making the person more comfortable when walking and having a better experience.

[0029] The insole base 1, the front foot area 2, the rear heel area 3, the arch area 4, etc. of the support part can all be printed with one material according to the user's needs, or each part can use a more matching material, or even the same material can be used for printing in more than two areas, so that the production of the insole can be customized according to the needs of each user, which is more in line with the personalized needs of users. In addition, using 3D printing technology to make insoles does not require opening a mold for making insoles for each user, and the production cost is relatively low.

[0030] Please refer to Figure 5 As shown in the figure, the insole base 1 includes at least one layer structure of a base layer 11. A first buffer layer 12 can be arranged above the base layer 11, and a second buffer layer 13 is arranged above the first buffer layer 12.

[0031] The insole base 1 should at least have a base layer 11, which is a layer structure for supporting the entire insole. The base layer 11 can be made by 3D printing with suitable materials and structures, or can be prefabricated with materials such as rubber and EVA. As the bottom support of the entire insole, it can prevent the insole from collapsing downward. In order to improve the comfort of the entire insole, one or two buffer layers, namely buffer layer 12 and buffer layer 13, can be added above the base layer 11, making the wearing comfort of the insole better.

[0032] Please refer to Figure 3 and Figure 4 As shown, the internal printing structure of the insole base 1 and the support part includes a honeycomb structure, a helix or a grid structure in cross-section;

[0033] For the insole base 1, the front area 2 of the sole, the rear area 3 of the heel, and the arch area 4, etc., when making them by 3D printing, by selecting different printing structures for different areas, some areas can support the sole more softly and elastically, and some areas can support the sole with high hardness and better support effect. In addition to the honeycomb structure, helix or grid structure, other suitable printing structures can also be selected for production.

[0034] Please refer to Figure 6 As shown, the inclination angle of the upper end surface of the rear area 3 of the heel from back to front is α, and the angle range of α is 3 - 8°;

[0035] The rear area 3 of the heel adopts a forward inclination structure, which can make the sole of the foot incline slightly forward when wearing, and can reduce the fatigue feeling when standing.

[0036] The front area 2 of the sole, the rear area 3 of the heel, and the arch area 4 have different printing heights;

[0037] When making the insole by printing, according to the needs of users, the printing heights of each area are different, so that each surface of the sole can contact the insole, improving the wearing comfort.

[0038] Embodiment 2

[0039] Please refer to Figure 2 As shown, the support part includes the front area 2 of the sole and the rear area 3 of the heel. The front area 2 of the sole is respectively the front sole sub-zone 21 and the front sole sub-zone 22, and the rear area 3 of the heel includes the rear heel sub-zone 31 and the rear heel sub-zone 32;

[0040] The difference from the first embodiment is that the partitions of the sole support portion are only the sole front area 2 and the heel rear area 3, and the arch area 4 is removed, so that it can adapt to people without arches, and the sole front area 2 and the heel rear area 3 are evenly divided into a forefoot partition 1 21 and a forefoot partition 2 22 and a heel partition 1 31 and a heel partition 2 32. The size and shape of the area can be selected according to different usage conditions, making the use of the insole more flexible;

[0041] In addition, it can make some people with foot fasciitis, flat feet, heel varus and valgus, high arches, etc. more comfortable when walking and have a better experience.

[0042] Working principle: when using a 3D printer to print insoles, according to the user's foot data and walking habits, first select suitable printing materials to print and produce the insole base 1, and then use materials of different hardness to print the support mechanism for the sole of the foot in the front area 2 of the sole of the foot, the rear area of ​​the heel 3 and the arch area 4 on the insole base 1. The printing height of each area in the front area 2 of the sole of the foot, the rear area of ​​the heel 3 and the arch area 4 is different, so that the insole can fit each area of ​​the sole of the foot better, the support effect is better, and the wearing comfort is better.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A functional 3D printed insole with multi-color and multi-hardness embedded modules, characterized by: The insole base (1) comprises a support portion for supporting the sole of the foot, the upper end surface of the insole base (1) being arranged corresponding to the sole of the human body, the support portion comprising a sole front area (2) for supporting the forefoot, a heel rear area (3) for supporting the heel, and an arch area (4); The insole base (1), the front area of ​​the sole (2), the rear area of ​​the heel (3), and the arch area (4) are respectively printed with materials of different hardness using a 3D printer to provide different support forces to the foot.

2. A functional 3D printed insole with multi-color and multi-hardness embedded modules according to claim 1, characterized in that: The support portion includes a front area of ​​the sole (2) and a rear area of ​​the heel (3), wherein the front area of ​​the sole (2) is respectively a forefoot partition 1 (21) and a forefoot partition 2 (22), and the rear area of ​​the heel (3) includes a heel partition 1 (31) and a heel partition 2 (32).

3. The functional 3D printed insole with multi-color and multi-hardness embedded modules according to claim 1, characterized in that: The insole base (1) comprises at least a layer structure of a base layer (11), a buffer layer 1 (12) may be arranged above the base layer (11), and a buffer layer 2 (13) is arranged above the buffer layer 1 (12).

4. The functional 3D printed insole with multi-color and multi-hardness embedded modules according to claim 1, characterized in that: The insole base (1) and the internal printed structure of the support portion include a cross-sectional structure of a honeycomb structure, a spiral structure or a grid structure.

5. The functional 3D printed insole with multi-color and multi-hardness embedded modules according to claim 1, characterized in that: The upper end surface of the heel rear area (3) has an inclination angle α from back to front, and the angle range of α is 3-8°.

6. The functional 3D printed insole with multi-color and multi-hardness embedded modules according to claim 1, characterized in that: The front area of ​​the sole (2), the rear area of ​​the heel (3) and the arch area (4) have different printing heights.

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