3D printing shoe sole with support plate movable nesting

Abstract

The utility model discloses a 3D printing sole with support plate movable nesting, including shoe body and the potential energy board of wearing in the sole, the sole is provided with at least one 3D printing forming's high density support slot, and the support slot is extended to the outside along the forefoot of the sole from the waist of the sole, and penetrates the front end of shoe body, and the support slot is penetrated and embedded with the potential energy board. The utility model discloses the advantage of realizing printing process while carrying out 3D printing, and the position needed for the shoe head opening is accurately integrated and prints the support slot with the groove depth, then the potential energy board is worn and is embedded in the support slot, realizes the combination formula function support effect, and is more beneficial to the sports wearing of running scene. The present application forms the lattice sole quickly through 3D printing forming, and provides deformation damping with the lattice body, and the hard potential energy board is embedded on the support slot and provides the torsional support, and the support slot and the potential energy board make the forefoot stress point get the buffer.

Description

Technical Field

[0001] This utility model relates to the field of footwear, specifically to a 3D-printed shoe sole with a movable nested support plate. Background Technology

[0002] Shoes are garments worn on the feet to protect them and facilitate walking. Traditional shoes were made of materials such as leather, cloth, and rubber. Modern shoes mostly consist of a foam midsole and an upper sewn onto the midsole to wrap around the foot. Underneath the midsole is an outsole to improve wear resistance and grip. Together with the lacing system on the upper, the shoes are secured to the user's feet, making them lightweight and durable.

[0003] However, material-based cushioning soles, which rely on the elasticity of soft materials for shock absorption, are prone to collapse and deformation over time, gradually weakening their cushioning effect. Furthermore, the stronger the cushioning performance, the weaker the rebound performance. In competitive sports and other applications requiring high rebound, ordinary cushioning soles cannot provide both sufficient cushioning and responsiveness. In contrast, mechanical cushioning soles, made from materials that are less prone to deformation and featuring a cushioning and rebound structure, offer more consistent performance and a longer lifespan.

[0004] With the development of technology, 3D printing technology for shoe soles has emerged. People use 3D printers to print the periphery of shoe soles, creating highly elastic lattice structures with fast deformation recovery. Traditional lattice structures are prone to breakage and failure under continuous high pressure and high strength, thus affecting the comfort of consumers.

[0005] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a 3D-printed shoe sole with fewer processing steps and high comfort and support plate nesting, which offers a more secure fit.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: A 3D-printed shoe sole with a movable nested support plate includes a shoe body. The side of the shoe body corresponding to the outer side of the instep is called the outer side, and the side corresponding to the inner side of the instep is called the inner side. The position of the shoe body corresponding to the front of the foot is called the forefoot part, the position of the shoe body corresponding to the heel is called the heel part, the position of the shoe body between the forefoot part and the heel part is called the midsection part, and the position of the shoe body corresponding to the foot entering the shoe body is called the shoe opening. It also includes a potential energy plate inserted into the shoe sole. The shoe sole has at least one 3D-printed high-density support groove. The support groove extends outward from the midsection of the shoe sole along the forefoot part of the shoe sole and penetrates the front end of the shoe body. The potential energy plate is embedded in the support groove.

[0008] In a preferred embodiment of the present invention, the width of the potential energy plate is smaller than the width of the support slot, so that the potential energy plate is fixedly embedded in the support slot. One end of the potential energy plate is triangular-pointed to facilitate insertion into the support slot.

[0009] In a preferred embodiment of the present invention, the shoe body includes an upper and a sole. The front part of the shoe opening extends forward along the forefoot to expand the deformable range of the shoe opening. The notch is connected to the shoe opening. The notch includes a first side and a second side. A shoelace extends outward from the first side along the direction of the second side. The shoelace covers the notch with the first side and connects to the upper near the second side to adjust the tightness of the shoe opening. The upper, the sole, the shoe opening, and the shoelace are integrally formed by 3D printing.

[0010] In a preferred embodiment of the present invention, the shoelace is connected to the upper near the second side via a connecting unit. The connecting unit includes a first connecting member disposed on the shoelace and a second connecting member disposed near the upper near the second side. The first connecting member and the second connecting member are detachably connected.

[0011] In a preferred embodiment of the present invention, the width of the shoelace gradually decreases from the first side to the second side.

[0012] In a preferred embodiment of the present invention, different functions are formed in different areas of the upper and the sole by means of lattice parametric design based on the contour defined by the shoe body.

[0013] In a preferred embodiment of the present invention, the parametric design includes lattice density, lattice shape, and lattice orientation.

[0014] In a preferred embodiment of the present invention, the shoe body includes a first lattice region and a second lattice region. The first lattice region is a single-layer lattice structure, and the second lattice region is a double-layer lattice structure. The first lattice region includes the forefoot portion of the shoe upper, the midsection portion of the shoe upper, and the sole. The second lattice region includes the heel portion of the shoe upper.

[0015] In a preferred embodiment of the present invention, the shoe opening and the notch edge of the shoe upper are provided with 3D-printed high-density opening reinforcement ribs; the side of the shoe upper is provided with a plurality of 3D-printed high-density side reinforcement ribs; the heel part of the shoe upper is provided with 3D-printed high-density heel reinforcement ribs; and the sole is provided with 3D-printed high-density planar lay-up.

[0016] In a preferred embodiment of the present invention, the potential energy plate is a rigid material, and the 3D printing material of the shoe body is thermoplastic polyurethane resin (TPU) powder or polyurethane (PU) photocurable resin material. By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: While performing 3D printing, the advantages of the printing process are utilized to precisely and integrally print a support slot with its own depth at the required position of the toe opening. Then, a potential energy plate is embedded within the support slot, achieving a combined functional support effect, which is more beneficial for running activities. This invention uses 3D printing to quickly form a lattice sole, which, in conjunction with the lattice, provides deformation shock absorption. The rigid potential energy plate embedded in the support slot provides torsional support, and the combination of the support slot and the potential energy plate cushions the force points on the forefoot. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another angle; Figure 3 This is a schematic diagram of the structure of the present invention from another angle; Figure 4 This is a top view of the present invention; Figure 5 This is a side view of the present invention; Figure 6 This is a bottom view of the present invention; In the figure: forefoot 11, midsection 12, heel 13, shoe opening 14, notch 15, first side 151, second side 152, shoelace 16, upper 2, opening reinforcement 21, side reinforcement 22, heel reinforcement 23, sole 3, support groove 31, connecting unit 4, potential energy plate 5. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1 to 6 A 3D-printed one-piece shoe includes a shoe body formed in one piece by 3D printing. It is worth noting that the 3D printing material for the shoe body includes, but is not limited to, thermoplastic polyurethane resin (TPU) powder or polyurethane (PU) photocurable resin materials.

[0020] For ease of description, the side of the shoe body corresponding to the outer side of the instep is defined as the outer side, the side corresponding to the inner side of the instep is defined as the inner side, the position of the shoe body corresponding to the front of the foot is defined as the forefoot 11, the position of the shoe body corresponding to the heel is defined as the heel 13, the position of the shoe body between the forefoot 11 and the heel 13 is defined as the midsection 12, and the position of the shoe body corresponding to the foot entering the shoe is defined as the shoe opening 14.

[0021] The shoe body includes an upper 2 and a sole 3. The front part of the shoe opening 14 extends forward along the forefoot portion 11 with a notch 15 to expand the deformable range of the shoe opening 14, making it easier for the user to put on and take off the 3D printed one-piece shoe. The notch 15 is connected to the shoe opening 14. The notch 15 includes a first side 151 and a second side 152. A shoelace 16 extends outward from the first side 151 along the direction of the second side 152. The shoelace 16 is covered by the first side 151 on the notch 15 and connected to the upper 2 near the second side 152 to adjust the tightness of the shoe opening 14. In this embodiment, the shoelace 16 is used to address the issue of excessive looseness between the shoe opening 14 and the notch 15. By opening the first side 151 and the second side 152 with the shoelace 16, the area of ​​the shoe opening 14 and the notch 15 is increased, making it easier for the user's foot to wear. Simultaneously, this invention utilizes the three-dimensional molding advantages of 3D printing, which not only makes the shoelace 16 less prone to tearing and improves its lifespan, but also solves the problem of foot wrapping, achieving a significant breakthrough in superior performance for running. It is worth noting that in this embodiment, there is at least one shoelace 16. Of course, multiple shoelaces can be used on the first side 151, multiple shoelaces on the second side 152, or multiple shoelaces evenly distributed on the first side 151 and the second side 152. The specific design can be tailored to the actual situation and will not be elaborated further here.

[0022] In a preferred embodiment of the present invention, the upper 2, sole 3, shoe opening 14, and shoelace 16 are integrally formed by 3D printing.

[0023] In a preferred embodiment of the present invention, the shoelace 16 is connected to the upper 2 near the second side 152 via a connecting unit 4. The connecting unit 4 includes a first connector (not shown in the figure) disposed on the shoelace 16 and a second connector (not shown in the figure) disposed on the upper 2 near the second side 152. The first connector and the second connector are detachably connected. Specifically, the connecting unit 4 can be a detachable connecting unit 4 such as Velcro, magnetic snaps, or concealed snaps commonly used in the market, as long as it can achieve a detachable connection between the shoelace 16 and the upper 2 of the second side 152. Further details will not be elaborated here.

[0024] In a preferred embodiment of the present invention, the width of the shoelace 16 gradually decreases from the first side 151 along the second side 152.

[0025] In a preferred embodiment of the present invention, different functions are formed in different areas of the upper 2 and sole 3 based on the contour defined by the shoe body through parametric design of the lattice. This parametric design includes the density, shape, and orientation of the lattice. Compared with the prior art, the sole 3 and upper 2 of the 3D printed one-piece shoe provided by the present invention are both formed by interconnecting several hollow lattice bodies, which have high breathability. In addition, since the sole 3 has a porous and loose structure, it has high shock absorption and cushioning performance, thereby further improving the comfort of the user when wearing it. In this embodiment, each lattice body is formed by multiple elastic pillars connected together. This structure has high elasticity and fast recovery of elastic deformation speed, which is more conducive to the consumer's wearing and movement. Moreover, the elastic pillars are inwardly arched arc shapes, that is, the arc shape generates a pre-deformation direction, which better generates inward deformation when subjected to force.

[0026] In a preferred embodiment of the present invention, the shoe body includes a first lattice region and a second lattice region. The first lattice region is a single-layer lattice structure, and the second lattice region is a double-layer lattice structure. The first lattice region includes the forefoot portion 11 of the upper 2, the midsection portion 12 of the upper 2, and the sole 3. The second lattice region includes the heel portion 13 of the upper 2. The shoelace 16 has a single-layer lattice structure on the open side, so that when the shoelace 16 covers the highest area of ​​the instep bone, there is no risk of double-layer structure pressing on the instep, making the instep comfortable and light. The heel portion 13 is provided with a double-layer lattice structure, so that when the foot is put into the shoe opening 14, the double-layer lattice structure can lock the ankle.

[0027] In a preferred embodiment of the present invention, a high-density 3D-printed opening reinforcement rib 21 is provided at the edge of the notch 15 of the shoe opening 14 and the upper 2. The opening reinforcement rib 21 is configured to fit the wave shape of the user's ankle, which helps to improve the strength of the shoe opening 14 and the notch 15, thereby avoiding cracking at this point. At the same time, it makes the restriction strength on the ankle higher, and makes it easier for the foot to put on the shoe opening 14, and is less likely to cause blisters.

[0028] As a preferred embodiment of the present invention, the side of the shoe upper 2 is provided with a plurality of 3D printed high-density side reinforcing ribs 22, which is beneficial to improve the lateral support of the shoe upper 2 and avoid the phenomenon that the shoe upper 2 cannot cover the foot when pushing off the ground laterally, thus making the overall lateral stability of the shoe upper 2 stronger.

[0029] As a preferred embodiment of the present invention, the heel portion 13 of the upper 2 is provided with a 3D-printed high-density heel reinforcement rib 23, which is beneficial to improve the rearward support of the upper 2 and makes it less likely to cause ankle sprains or lateral tilting when wearing the shoe. At the same time, the ankle reinforcement protrusion made of TPU material further improves the protection of the ankle and can better resist deformation and support the ankle when the ankle bends, thus preventing sprains.

[0030] In a preferred embodiment of the present invention, the sole 3 is provided with a high-density planar layup (not shown in the figure) formed by 3D printing, which is beneficial to improving the torsional resistance of the sole 3. The planar layup in the area where the force contacts the ground can increase the wear resistance and reduce the blockage or clogging of the 3D lattice pores by sand and gravel. The 3D lattice sole 3 is slightly higher than the planar layup, which can increase its grip on the ground. The wear resistance of the sole 3 is greatly improved by the planar layup, which increases the overall service life of the 3D printed one-piece shoe.

[0031] As a preferred embodiment of the present invention, the top edge of the sole 3 is formed by 3D printing with high-density edge reinforcing ribs (not shown in the figure). This edge reinforcing ribs help to improve the strength of the connection between the sole 3 and the upper 2, avoid cracking at the connection, improve service life, and make it less likely to collapse excessively and tilt when stepped on.

[0032] In a preferred embodiment of the present invention, the invention further includes a potential energy plate 5 mounted on the sole 3. The sole 3 has at least one 3D-printed high-density support groove 31. The support groove 31 extends outward from the midsection 12 of the sole 3 along the forefoot portion 11 of the sole 3 and penetrates the front end of the shoe body. The potential energy plate 5 is embedded in the support groove 31. Specifically, the potential energy plate 5 is made of a rigid material. It is worth noting that in this embodiment, there may be two support grooves 31, respectively located on both sides of the front end of the shoe body. Of course, different numbers of support grooves 31 may also be provided, which will not be elaborated here.

[0033] When there are two support slots 31, the potential energy plate 5 can be set as two separate potential energy plates 5, or as a U-shaped potential energy plate 5.

[0034] In a preferred embodiment of the present invention, the width of the potential energy plate 5 is smaller than the width of the support slot 31, so that the potential energy plate 5 is fixedly embedded in the support slot 31, and one end of the potential energy plate 5 is triangular-pointed to facilitate insertion into the support slot 31. Utilizing the advantages of 3D printing technology, the support slot 31 with its own depth is precisely and integrally printed at the required position of the toe opening. The potential energy plate 5 is then inserted into the support slot 31, achieving a combined functional support effect, which is more beneficial for running activities. The present invention rapidly forms the lattice upper 2 and sole 3 through 3D printing, with the lattice providing deformation shock absorption. The rigid potential energy plate 5 embedded in the support slot 31 provides torsional support, and the support slot 31 and potential energy plate 5 together cushion the force points of the forefoot 11. In use, the shape of the shoe body is preset by the 3D printer, and then the elastic plastic material powder is added into the 3D printer. The shoe upper 2 and shoe sole 3 can be quickly formed by the 3D printer. After the shoe sole 3 is printed (the support slot 31 is formed at the same time as printing), the potential energy plate 5 can be embedded in the support slot 31 of the shoe sole 3. The shoe can be quickly processed and formed as a whole, which greatly reduces the production and processing steps and makes the production speed faster. The shoe body, featuring breathable pores, is formed using 3D printing technology, ensuring its lightweight and breathability. The use of elastic plastic material gives the shoe body high deformability, providing a snug fit and enhancing comfort. The breathable pores further contribute to its lightweight and breathable nature, resulting in superior comfort. Furthermore, the shoe can be manufactured solely through 3D printing, eliminating the need for multiple layers of fabric, making production faster and more convenient. During wear, when the foot steps on the sole 3, the forefoot 11 compresses the lattice structure of the sole 3, receiving feedback from the potential energy plate 5. This ensures comfort during light pressure while maintaining stability during heavy pressure or more vigorous exercise.

[0035] This invention uses 3D printing technology to integrally form the upper 2 and sole 3 of the shoe. During production, the entire shoe can be formed in one step using a 3D printer, with fewer processing steps and faster processing speed.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 3D-printed sole with a movable nested support plate, comprising a shoe body, wherein the side of the shoe body corresponding to the outer side of the instep is the outer side, the side corresponding to the inner side of the instep is the inner side, the position of the shoe body corresponding to the front of the foot is the forefoot portion, the position of the shoe body corresponding to the heel is the heel portion, the position of the shoe body between the forefoot portion and the heel portion is the midsection portion, and the position of the shoe body corresponding to the foot insertion is the shoe opening, characterized in that: It also includes a potential energy plate inserted into the sole; the sole is provided with at least one 3D printed high-density support groove, the support groove extends outward from the midsection of the sole along the forefoot of the sole and penetrates the front end of the shoe body, and the potential energy plate is embedded in the support groove.

2. A 3D-printed shoe sole with a movable nested support plate according to claim 1, characterized in that... The width of the potential energy plate is smaller than the width of the support slot, so that the potential energy plate is fixedly embedded in the support slot. One end of the potential energy plate is triangular-pointed to facilitate insertion into the support slot.

3. A 3D-printed shoe sole with a movable nested support plate according to claim 1, characterized in that... The shoe body includes an upper and a sole. The front part of the shoe opening extends forward along the forefoot area with a notch to expand the deformable range of the shoe opening. The notch is connected to the shoe opening. The notch includes a first side and a second side. A shoelace extends outward from the first side along the direction of the second side. The shoelace covers the notch with the first side and connects to the upper near the second side to adjust the tightness of the shoe opening. The upper, the sole, the shoe opening, and the shoelace are integrally formed by 3D printing.

4. A 3D-printed shoe sole with a movable nested support plate according to claim 3, characterized in that... The shoelaces are connected to the upper near the second side via a connecting unit. The connecting unit includes a first connector disposed on the shoelaces and a second connector disposed on the upper near the second side. The first connector and the second connector are detachably connected.

5. A 3D-printed shoe sole with a movable nested support plate according to claim 3, characterized in that... The width of the shoelace gradually decreases from the first side to the second side.

6. A 3D-printed shoe sole with a movable nested support plate according to claim 3, characterized in that... Based on the contour defined by the shoe body, different functions are formed in different areas of the shoe upper and the shoe sole through parametric design of the lattice.

7. A 3D-printed shoe sole with a movable nested support plate according to claim 6, characterized in that... Parametric design includes lattice density, lattice shape, and lattice orientation.

8. A 3D-printed shoe sole with a movable nested support plate according to claim 6, characterized in that... The shoe body includes a first lattice region and a second lattice region. The first lattice region is a single-layer lattice structure, and the second lattice region is a double-layer lattice structure. The first lattice region includes the forefoot portion of the shoe upper, the midsection portion of the shoe upper, and the sole. The second lattice region includes the heel portion of the shoe upper.

9. A 3D-printed shoe sole with a movable nested support plate according to claim 3, characterized in that... The shoe opening and the notch edge of the shoe upper are provided with 3D printed high-density opening reinforcement ribs; the side of the shoe upper is provided with a plurality of 3D printed high-density side reinforcement ribs; the heel part of the shoe upper is provided with 3D printed high-density heel reinforcement ribs; the sole is provided with 3D printed high-density planar lay-up.

10. A 3D-printed shoe sole with a movable nested support plate according to claim 1, characterized in that... The potential energy plate is made of rigid material, and the 3D printing material of the shoe body is thermoplastic polyurethane resin (TPU) powder or polyurethane (PU) photocurable resin material.

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