DE202024101594U1 - Breathable cushioning shoe and breathable and cushioning shoe sole - Google Patents

Abstract

Breathable and cushioning shoe sole, characterized in that it comprises a long sole (1), an insole (2) and a sole made of Brabant fabric (3), wherein the long sole (1) is applied to the underside of the midsole (2) and the sole made of Brabant fabric (3) is applied to the top of the insole (2);
wherein the insole (2) is provided with an upwardly extending flange, wherein the region surrounded by the flange forms a receiving region, wherein the receiving region comprises a forefoot region and a heel region, wherein the forefoot region is provided with a passage body (4), wherein the heel region is formed with a support body which projects upwards and serves to support the support feet; and
wherein the passage body (4) is designed as a three-dimensional lattice structure made up of a plurality of support ribs (400), wherein different support ribs (400) are provided crosswise to form flow channels for the gas circulation, wherein a plurality of flow channels penetrate through one another.

Description

TECHNICAL AREA

The present application relates to the field of footwear, in particular to a breathable cushioning shoe and a breathable and cushioning shoe sole.

STATE OF THE ART

The comfort of shoes is affected by many factors, including shoe last design, upper design, insole design, material selection and process design and the like, which are specifically reflected in heel height, shoe size, weight, breathability, shock absorption and cushioning and stability and the like.

Therefore, to judge whether a pair of shoes is comfortable, many objective factors must be comprehensively considered. At present, the shoe products on the market already have very mature designs in terms of size, weight, cushioning and the like. However, as far as the breathability of shoes is concerned, especially the breathability of the bottom of the shoe, due to the limitations of current material technology, it is difficult to achieve the breathability of the bottom of the shoe.

However, the forefoot of the soles of the feet and the heel area are distributed with numerous sweat glands and are main areas of the human body for expelling sweat, and current shoe products do not have good breathability on the soles of the feet, and long-term wear can easily cover sweat and cause foot diseases (such as tinea pedis, eczema, fungal infections). High-work intensity groups such as training soldiers, runners, medical personnel, epidemic prevention and control workers, miners and other groups have long been affected by this situation. In addition, from the perspective of regional distribution and season, this factor is particularly obvious in hot and humid areas and high-temperature seasons. Meanwhile, wearing insulated shoes with non-breathable soles in winter will face the problem of sweat not being able to be wicked away.

Therefore, the soles of shoes usually have poor breathability and are prone to accumulation of sweat when worn for a long time. In order to improve the comfort of shoe wearers, a more reasonable technical solution is urgently needed, which not only has high cushioning comfort and high functionality, which can meet the cushioning needs of different people, and also can improve the breathability of the sweat gland-rich area on the bottom of the foot.

CONTENT OF THIS APPLICATION

The present application provides a breathable cushioning shoe and a breathable and cushioning shoe sole, so that the shoe sole has high cushioning comfort and high functionality, which can meet the cushioning needs of different people, and also can improve the breathability of the sweat gland-rich area on the bottom of the foot.

In a first aspect, the present application provides a breathable and cushioning shoe sole comprising a long sole, an insole and a sole made of Brabant fabric, wherein the long sole is applied to the bottom of the midsole and the sole made of Brabant fabric is applied to the top of the insole;
wherein the insole is provided with an upwardly extending flange, wherein the region surrounded by the flange forms a receiving region, wherein the receiving region comprises a forefoot region and a heel region, wherein the forefoot region is provided with a passage body, wherein the heel region is formed with a support body which projects upwards and serves to support the support feet;

The passage body is designed as a three-dimensional lattice structure made up of a plurality of support ribs, wherein different support ribs are provided crosswise to form flow channels for gas circulation, wherein a plurality of flow channels penetrate through one another.

In the breathable and cushioning shoe sole of the present application, the passage body is connected to the insole with a mortise and tenon connection.

In the breathable and cushioning shoe sole of the present application, an adhesive element is arranged on the upper surface of the support body and the outer circumference of the passage body, wherein the insole connects the passage body and the support body via the adhesive element.

In the breathable and cushioning shoe sole of the present application, the rib thickness of the support ribs (400) is greater than or equal to 0.3 mm and less than or equal to 4 mm, and/or wherein the side length of the support ribs (400) is greater than or equal to 3 mm and less than or equal to 20 mm.

In the breathable and cushioning shoe sole of the present application, the permeable body is a light-curing resin material, a thermoplastic rubber, a thermoplastic elastomer, a polyurethane elastomer, a nylon elastomer, a polyester elastomer, an EVA elastomer or an organosilicone elastomer.

In the breathable and cushioning shoe sole of the present application, the three-dimensional lattice structure has at least one polyhedron, planar bodies, cones, rhombuses, stars or spheroids.

In the breathable and cushioning shoe sole of the present application, the surface of the insole is provided with a waterproof coating.

In the breathable and cushioning shoe sole of the present application, the breathable and cushioning shoe sole also comprises a protective frame, wherein the protective frame is formed with a first support portion adapted to the passage body, a second support portion adapted to the support body and a third support portion provided between the passage body and the support body.

In the breathable and cushioning shoe sole of the present application, the side of the long sole that contacts the ground is the contact surface, the contact surface is provided with multiple rows of gripping nails, and the gripping nails are distributed over the entire contact surface to provide a stable grip.

In a second aspect, the present application provides a breathable cushioning shoe comprising a breathable and cushioning shoe sole as described herein.

Through the above technical solution, this application uses a passage body formed in the forefoot area of the insole as a three-dimensional grid structure made up of a plurality of support ribs, with different support ribs provided crosswise. The three-dimensional grid structure has a plurality of nets that are connected to each other and allow gas circulation, which has a positive effect on ventilation and sweat expulsion on the one hand, and on heat dissipation on the other, thus keeping the forefoot sole fresh and comfortable, and preventing sweat from accumulating on the sole of the foot, which can lead to the formation of fungus or the development of skin eczema. Meanwhile, due to the structural design of this grid, the passage body can also have a certain cushioning function, reducing the impact on the forefoot sole when the forefoot touches the ground, thus enabling the sole of the foot to touch the ground safely and gently.

BRIEF DESCRIPTION OF THE DRAWINGS

• 1 ist eine schematische strukturelle Darstellung des Durchlasskörpers in der Schuhsohle;
• 2 ist ein Teilstrukturdiagramm des Durchlasskörpers in der Schuhsohle;
• 3 ist eine schematische strukturelle Darstellung der Schuhsohle, wobei basierend auf der Zeichnungsrichtung der Bereich links von der Grenzlinie A der Zehenbereich ist, wobei der Bereich zwischen der Grenzlinie A und der Grenzlinie B der Sohlenbereich ist.
• Es ist zu beachten, dass es aufgrund unterschiedlicher Fußformen zu einer teilweisen Überlappung von Zehenbereich und Sohlenbereich kommen kann, wobei der Bereich zwischen der Grenzlinie B und der Grenzlinie C der Bogenbereich ist, wobei der Bereich rechts der Grenzlinie C der Fersenbereich ist. Es ist zu beachten, dass die Positionsmarkierungen der Grenzlinie A, Grenzlinie B, Grenzlinie C und Grenzlinie D nur als Referenz für das Verständnis dieses Dokuments dienen;
• 4 ist eine schematische strukturelle Darstellung des Durchlasskörpers in der Langsohle;
• 5 ist das Leistungstestdiagramm von TPU-Pulver;
• 6 ist ein Diagramm der Sphärizität des Materials, wenn das Pulvermaterial unter Verwendung des Verfahrens zur Herstellung der Schuhsohle gesintert wird;
• 7 ist ein Diagramm des Materials bei der Verarbeitung mit Verfahren im Stand der Technik;
• 8 ist ein Diagramm, das die Sphärizität des Materials und die Partikelkurvenverteilung zeigt, wenn das Durchlasskörper mit dem Verfahren zur Herstellung der Schuhsohle hergestellt wird;
• 9 zeigt die Zugfestigkeitstestdaten der Stützrippen, wenn der Durchlasskörper mit dem Verfahren zur Herstellung der Schuhsohle hergestellt wird;
• 10 ist eine schematische strukturelle Darstellung einer Sohle aus Brabanter Stoff;

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings to be used in embodiments will be briefly described below.

• 1 is a schematic structural representation of the passage body in the shoe sole;
• 2 is a partial structure diagram of the passage body in the shoe sole;
• 3 is a schematic structural representation of the shoe sole, where based on the drawing direction, the area to the left of the boundary line A is the toe area, and the area between the boundary line A and the boundary line B is the sole area.
• It should be noted that due to different foot shapes, there may be partial overlap of the toe area and the sole area, the area between the boundary line B and the boundary line C is the arch area, and the area to the right of the boundary line C is the heel area. It should be noted that the position marks of boundary line A, boundary line B, boundary line C and boundary line D are only for reference for understanding this document;
• 4 is a schematic structural representation of the culvert body in the long bed;
• 5 is the performance test chart of TPU powder;
• 6 is a diagram of the sphericity of the material when the powder material is sintered using the method of manufacturing the shoe sole;
• 7 is a diagram of the material being processed by prior art methods;
• 8th is a diagram showing the sphericity of the material and the particle curve distribution when the culvert is manufactured by the shoe sole manufacturing method;
• 9 shows the tensile strength test data of the support ribs when the culvert body is manufactured by the shoe sole manufacturing method;
• 10 is a schematic structural representation of a sole made of Brabant cloth;

1. 1. Langsohle, 2. Einlegesohle, 3. Sohle aus Brabanter Stoff, 4. Durchlasskörper, 400. Stützrippe, 5. Greifnagel.

In the drawings above, the individual symbols have the following meaning:

1. 1. Long sole, 2. Insole, 3. Sole made of Brabant fabric, 4. Passage body, 400. Support rib, 5. Gripping nail.

DETAILED DESCRIPTION

In the following, the present application is further explained in conjunction with the accompanying drawings and specific embodiments;

According to a first aspect of the present disclosure, a method for producing the shoe sole is provided, wherein specific attention is given to the 1 until 10 reference is made.

The process of manufacturing the shoe sole of the breathable cushioning shoe can produce shoe soles with certain cushioning and breathability functions, improve the comfort of the shoe soles, and meet people's usage needs for long-term wear, high-intensity exercise or harsh environments.

• eine additive Methode wird zur Herstellung eines Durchlasskörpers 4 verwendet, wobei der Durchlasskörper 4 über mehrere, miteinander verbundene, atmungsaktive Kanäle verfügt;
• eine Stützsohle wird mit einem Schäumverfahren hergestellt, wobei die Stützsohle mit einem Flansch versehen ist, der sich nach oben erstreckt, um eine Nut zu bilden; wobei im Fersenbereich der Stützsohle ein sich nach oben erstreckender Stützkörper ausgebildet ist;
• eine Langsohle 1 wird vorgesehen, wobei die Stützsohle auf der oberen Fläche der Langsohle 1 vorgesehen ist;
• ein Durchlasskörper 4 ist im Vorderfußbereich vorgesehen, und wobei der Durchlasskörper 4 durch eine Einsteck- und Zapfenverbindung mit der Stützsohle verbunden ist;
• ein Klebstoff wird auf die obere Fläche des Stützkörpers und den Außenumfang des Durchlasskörpers 4 aufgetragen;
• eine Einlegesohle 2 wird auf dem Durchlasskörper 4 und dem Stützkörper vorgesehen, so dass die Einlegesohle 2 mit dem Durchlasskörper 4 und dem Stützkörper verklebt;
• der Durchlasskörper 4 ist mit einer Einsteck- und Zapfenverbindung mit der Einlegesohle 2 verbunden.

Specifically, the method of manufacturing in the present disclosure comprises the following steps:

• an additive method is used to produce a passage body 4, wherein the passage body 4 has a plurality of interconnected breathable channels;
• a support sole is produced by a foaming process, the support sole being provided with a flange extending upwards to form a groove; an upwardly extending support body being formed in the heel region of the support sole;
• a long sole 1 is provided, wherein the support sole is provided on the upper surface of the long sole 1;
• a passage body 4 is provided in the forefoot area, and wherein the passage body 4 is connected to the support sole by a plug and tenon connection;
• an adhesive is applied to the upper surface of the support body and the outer circumference of the passage body 4;
• an insole 2 is provided on the passage body 4 and the support body so that the insole 2 is bonded to the passage body 4 and the support body;
• the passage body 4 is connected to the insole 2 by a mortise and tenon connection.

The technical solution described above makes it possible to produce several nets that are connected to each other and allow gas circulation, which has a positive effect on ventilation and sweat expulsion on the one hand and on heat dissipation on the other, thus keeping the forefoot sole fresh and comfortable and preventing sweat from accumulating on the sole of the foot, which can lead to the formation of fungus or the development of skin eczema. Meanwhile, due to the structural design of this crystal lattice, the passage body 4 can also have a certain cushioning function, reducing the impact on the forefoot sole when the forefoot touches the ground and thus enabling the sole of the foot to touch the ground safely and gently.

Due to the mortise and tenon connection between the support body, the passage body 4, the insole 2 and the long sole 1, quick assembly is also an advantage. If there is a discrepancy between the specifications of the support body, the passage body 4, the insole 2 and the long sole 1, the employees can now identify and correct this for the first time based on the properties of the mortise and tenon connection, which prevents unqualified shoe soles from entering downstream processes and thus takes on a certain error correction function.

In addition, the structural design based on the passage body, the support body and the insole is beneficial to ensure that different areas of the shoe sole have different pressure relief effects and meanwhile ensure the support force, thereby adapting to the foot shape and meeting the user's breathability/cushioning needs in different sports scenes or sports conditions. This makes the shoe sole effectively meet the individual needs of different wearers and therefore has better flexibility and applicability.

For example, for users with foot deformities, customized designs can be made based on the shape of the foot; or when patients are undergoing rehabilitation, they can be flexibly configured according to their movement status at different stages; in addition, for athletes or people who stand (or walk) for a long time, the support and resilience of the shoe soles can be designed, which can make the shoes serve people better. This can effectively reduce the feeling caused by wearing shoes and allow people to perform activities in a comfortable and natural posture.

• ein Profilierungsentwurf wird am Durchlasskörper 4 durchgeführt, um ein digitales Modell zu erhalten, und eine Laufbahn wird basierend auf dem digitalen Modell entworfen;
• ein 3D-Drucker wird sich entsprechend dieser Laufbahn bewegen und mittlerweile ein Material auf der Basisschicht ausgeben; das Material wird gesintert und zu Stützrippen 400 laminiert und verfestigt;
• die oben genannten Schritte werden wiederholt, so dass die Stützrippen 400 Schicht für Schicht laminiert und verfestigt werden, um den Durchlasskörper 4 zu bilden.

In a specific implementation provided by the present disclosure, it is contemplated that the additive method comprises the following steps:

• a profiling design is carried out on the culvert body 4 to obtain a digital model, and a raceway is designed based on the digital model;
• a 3D printer will move according to this trajectory and meanwhile dispense a material on the base layer; the material will be sintered and laminated into support ribs 400 and solidified;
• the above steps are repeated so that the support ribs 400 are laminated and solidified layer by layer to form the passage body 4.

Specifically, the material is thermoplastic polyurethane elastomer rubber powder, with the particle size of the powder being in the micrometer range. The sintering temperature is 80°C-180°C.

1. (1) eine Computer-3D-Designsoftware wird verwendet, um einen Profilierungsentwurf durchzuführen (Strukturblöcke aus 3D-Minimalflächen oder 3D-Digitalmodellierung von der Einlegesohle des Schuhs), um ein digitales Modell zu erhalten; der Profilierungsentwurf wird in einen 3D-Drucker importiert;
2. (2) der 3D-Drucker mit selektivem Lasersintern (SLS) wird verwendet, um Strukturblöcke aus 3D-Minimalflächen zu erstellen;
3. (3) Der 3D-Druck von Strukturblöcken aus 3D-Minimalflächen oder Einlegesohle des Schuhs nutzt die selektive Lasersintertechnologie (SLS), und als Druckrohmaterial wird TPU-Pulver verwendet (Nylonpulver kann auch in anderen Methoden verwendet werden), wobei der Laser unter der Steuerung eines Computers verwendet wird, um das Pulver Schicht für Schicht zu scannen und zu bestrahlen, um ein Sintern und Verbinden des TPU-Pulvers sowie eine schichtweise Akkumulation zu erreichen, um eine Ausformung zu erreichen;
4. (4) das in der 3D-gedruckten Einlegesohle des Schuhs 2 verwendete TPU-Pulver ist ein Pulver mit einer Partikelgröße im Mikrometerbereich und seine Sintertemperatur beträgt 80 °C-180 °C.

The entire operation process of the additive method is as follows:

1. (1) a computer 3D design software is used to perform a profiling design (structural blocks from 3D minimal surfaces or 3D digital modeling from the insole of the shoe) to obtain a digital model; the profiling design is imported into a 3D printer;
2. (2) the selective laser sintering (SLS) 3D printer is used to create structural blocks from 3D minimal surfaces;
3. (3) 3D printing of 3D minimal surface structural blocks or insole of the shoe uses selective laser sintering (SLS) technology, and TPU powder is used as the printing raw material (nylon powder can also be used in other methods), using the laser under the control of a computer to scan and irradiate the powder layer by layer to achieve sintering and bonding of the TPU powder, as well as layer-by-layer accumulation to achieve molding;
4. (4) The TPU powder used in the 3D printed insole of shoe 2 is a powder with a particle size in the micrometer range and its sintering temperature is 80 °C-180 °C.

The surface structure wall thickness of the support ribs 400 of the passage body 4 is 0.3 mm to 4 mm and the side length of the unit structure is 3 mm to 20 mm.

The deformation range of the 3D printed minimal surface structural blocks used for the shoe insole module can be between 10% and 80%, and the load-bearing capacity can be between 20% and 80%, the hardness (Shore A hardness according to ASTM D2240 standard) of the material used in this example can be between 60A and 95A, the tensile strength can be between 5 and 30MPa, the elongation at break can be between 300 and 800%, and the tensile modulus can be between 10 and 200MPa, and materials with different hardness have different properties. In this implementation case, the SLS laser sintering process of TPU material is preferred, where the TPU material is laser sintered by a specially designed multi-point laser SLS printing process, which provides performance advantages in terms of product consistency, Z-direction tensile strength, and material bending life.

In other embodiments, sintering processes include, but are not limited to: Fused Filament Fabrication (FFF), Electron Beam Freeform Fabrication (EBF), Direct Metal Laser Sintering (DMLS), Electron Beam Melting (EMB), Selective Laser Melting (SLM), Selective Thermal Sintering (SHS), Selective Laser Sintering (SLS), Gypsum 3D Printing (PP), Layered Solid Manufacturing (LOM), Stereolithography (SLA), Digital Light Processing (DLP), and various other types of 3D printing or additive manufacturing technologies known in the art.

The passage body 4 manufactured by additive method is obtained using light-curing resin materials, thermoplastic rubber (TPR), thermoplastic elastomer, polyurethane elastomer (TPU), nylon elastomer (TPAE), polyester elastomer (TPEE), EVA elastomers and silicone elastomer through a 3D printing process of wire melt extrusion, material droplet ejection, powder tile melting, adhesive ejection or lamination and solidification of the photosensitive resin.

The 3D printed passage body 4 is formed into a three-dimensional lattice structure on which a flow channel for gas circulation is formed, which has one or more combinations of polyhedra, planar bodies, cones, rhombuses, stars and spheroids.

In practical applications, the density of the breathable damping module can be adjusted by changing the structure, material and rod diameter of the flow channel, achieving airflow exchange and damping functions through structural compression deformation.

In this disclosure, 3D printing equipment is used to melt and sinter the powder particles, which can increase the sphericity of the material, thereby resulting in improved product performance consistency and surface quality.

Under the manufacturing method provided in the first aspect, the tensile breaking rate of the prepared support rib 400 is: 755%, the tensile strength is: 10Mpa. The bending resistance number is: 900,000 times. When testing the rebound performance of the insole 2, the energy return rate of the insole 2 exceeded 40%.

The 3D printed breathable cushioning module has a mortise and tenon structure on the top and bottom, and is connected to the insole 2 and the long sole 1 by a mortise and tenon connection and an adhesive bond.

In this implementation, the SLS (Selective Laser Sintering) method is optionally used, and its energy irradiation device consists of 3D printing equipment (comprising a laser emitter, a flat field focusing lens, and a galvanometer system), where the laser emitter and the galvanometer system controllably regulate the energy of the output laser beam. For example, the laser emitter is controlled to emit a laser beam with a preset power and stop emitting the laser beam; as another example, the laser emitter can controllably increase and decrease the power of a laser beam. The flat field focusing lens is used to adjust the focus position of the laser beam, the galvanometer system is used to controllably scan the laser beam in the two-dimensional space of the printing reference surface in the container, and the photocuring material scanned by the beam is solidified into a corresponding pattern solidification layer.

The component platform of the SLS equipment is provided in a powder bed or a sintering mold chamber containing the material to be cured, and is used to attach and collect the pattern solidification layer cured by radiation. After the powder bed is placed, the powder material to be solidified is heated to a temperature just below the sintering point of the powder by the constant temperature device in the printing equipment, the laser of the energy radiation device traces the three-dimensional model cuts of the printed component, the cuts with the corresponding image are copied onto the powder bed, so that the powder material is heated above the melting point under laser irradiation to achieve sintering and solidifies at the corresponding layer height of the cuts, and the powder bed falls off after the construction of a layer of powder is completed, and the construction of the corresponding next cut graphic starts on the existing solidified layer, and the above process is repeated until the printing is completed.

1. (1) Dieser Prozess weist eine gute Sphärizität auf;
2. (2) Die Zugbruchrate von TPU beträgt bei diesem Verfahren: 755 %, die Zugfestigkeit beträgt: 10Mpa. Die Biegewiderstandszahl beträgt: 900.000 Mal.
3. (3) Bei diesem Verfahren liegt die Energierückgaberate der Einlegesohle 2 bei über 40 % und ihre Leistung übertrifft die anderer Materialien der TPU-Einlegesohle 2.

Compared to other materials, printing TPU materials using the SLS process offers the following performance advantages:

1. (1) This process exhibits good sphericity;
2. (2) The tensile breaking rate of TPU in this process is: 755%, the tensile strength is: 10Mpa. The bending resistance number is: 900,000 times.
3. (3) With this process, the energy return rate of the insole 2 is over 40%, and its performance exceeds that of other materials of the TPU insole 2.

• eine Schäummaschine wird Schaummaterial verschießen, um einen Polymer-Rohling zu bilden,
• der Polymer-Rohling wird in einen Hochdruck-Reaktionskessel gegeben;
• ein Vorwärmen wird erfolgen, und ein Schaummittel wird einspritzt, wobei der Druck schnell abgebaut wird, um das Schäumen durchzuführen, nachdem die Gasdiffusion ausgeglichen ist;
• die geschäumten Profilierungsteile werden zum Formen in das Formwerkzeug zur sekundären Ausformung eingelegt.

In the present disclosure, the foaming process comprises the following steps:

• a foaming machine will shoot foam material to form a polymer blank,
• the polymer blank is placed in a high-pressure reaction vessel;
• preheating will occur and a foaming agent will be injected, the pressure will be rapidly released to perform foaming after gas diffusion is balanced;
• The foamed profiling parts are inserted into the mold for secondary forming.

Specifically, the foaming agent is CO ₂ , N ₂ or He. The foam material is ethylene-vinyl acetate copolymer EVA, thermoplastic polyester elastomer TPEE, POE plastic or nylon elastomer.

• zunächst wird der Rohstoff in Polymer-Rohling spritzgegossen, wobei der Rohling in den Hochdruck-Reaktionskessel gegeben und auf die eingestellte Sättigungstemperatur vorgeheizt wird, wobei eine bestimmte Menge Schaummittel wie CO₂ oder N₂ eingespritzt wird, und nachdem die Gasdiffusion ausgeglichen ist, wird der Druck zum Aufschäumen schnell abgelassen, um das Halbzeug der Langsohle 1 zu erhalten; abschließend wird das Halbzeug zur Ausformung in das Formwerkzeug zur sekundären Ausformung eingelegt.

Since the structure of the long sole 1 is relatively complex, it is made of an all-foam type (rapid pressure reduction foaming process). In this design, the supercritical foaming process of nylon elastomer is used as an example. The process flow of this foaming process is as follows:

• first, the raw material is injection molded into polymer blank, the blank is put into the high pressure reaction vessel and preheated to the set saturation temperature, a certain amount of foaming agent such as CO ₂ or N ₂ is injected, and after the gas diffusion is balanced, the pressure is quickly released for foaming to obtain the semi-finished product of the long sole 1; finally, the semi-finished product is put into the mold for secondary molding for molding.

The external support structure produced by this process does not have a grainy appearance, is more expensive and is easier to design and shape.

In other embodiments, another foaming method may be used to manufacture the long sole 1. That is, the bead foaming method: the bead foaming technology is usually divided into two parts: bead pre-foaming and bead injection molding. Bead pre-foaming stage: using waterless spray bed foaming technology, small polymer raw materials are put into an autoclave, and by controlling variables such as CO ₂ flow rate, saturation temperature, saturation pressure, and pressure release rate, foam beads with high foam ratio and uniform foam holes can be produced. Through tests, it was found that the optimal CO ₂ flow rate is about 0.012 m / s, the saturation temperature is 155 ° C, the saturation pressure is 11 MPa, and the pressure release rate is 1.5 MPa. Bead injection molding stage: the obtained foamed beads are sintered in a mold to form a foam material with complex shapes or special structures. This process is characterized by low cost, high efficiency and a distinct grainy appearance.

In an embodiment provided by the present disclosure, the thickness of the shoe sole gradually increases along the direction from the forefoot to the heel. In this way, the "rolling effect" during walking and exercise can be enhanced, the heel cushioning ability can be improved, the forefoot stability can be improved during push-off, the plantar flexion moment, the eversion moment and the external rotation moment of the ankle joint can be reduced and the ankle joint can be protected, thereby reducing the risk of knee joint injury, and the range of motion of the muscles of the lower limbs can be reduced and muscle fatigue can be reduced.

According to a second aspect of the present disclosure, a breathable and cushioning shoe sole is provided.

The shoe sole can be manufactured using the method for manufacturing the shoe sole of the first aspect of the present disclosure and therefore has the same technical effects as the manufacturing method, and in order to avoid repetition, details are omitted here.

It should be noted that in the shoe sole provided in the second aspect of the present disclosure, the shoe sole is configured with a specific structure.

With specific reference to the 1 to 4 the breathable and cushioning shoe sole comprises a long sole 1 and an insole 2, wherein the long sole 1 is applied to the underside of the insole 2; the insole 2 has a receiving area, and wherein the edge of the insole 2 is provided with an upwardly extending flange, wherein the flange of the insole 2 can completely enclose the receiving area; the receiving area comprises a forefoot area and a heel area; the forefoot area is provided with a passage body 4 which was produced using additive manufacturing processes; the heel area of the insole 2 is formed with a support body which projects upwards and serves to support the support feet; the passage body 4 is formed as a three-dimensional lattice structure from a plurality of support ribs 400, wherein different support ribs 400 are provided crosswise to form flow channels for the gas circulation, wherein several flow channels penetrate each other.

Referring to 1 and 2 , the three-dimensional lattice structure has multiple lattices that are connected to each other and allow gas circulation, which is beneficial for ventilation and sweat expulsion on the one hand, and on the other hand, it is beneficial for heat dissipation, thereby keeping the forefoot sole fresh and comfortable and preventing sweat from accumulating on the sole of the foot, which can lead to the formation of fungus or the development of skin eczema. Meanwhile, due to the structural design of this crystal lattice, the passage body 4 can also have a certain cushioning function, thereby reducing the impact on the forefoot sole when the forefoot touches the ground, thus enabling the sole of the foot to touch the ground safely and gently.

The structural design based on the passage body, the support body and the insole is beneficial to ensure that different areas of the shoe sole have different pressure relief effects and meanwhile ensure the support force, thereby adapting to the foot shape and meeting the user's breathability/cushioning needs in different sports scenes or sports conditions. This makes the shoe sole effectively meet the individual needs of different wearers and therefore has better flexibility and applicability.

In the present disclosure, the diameter of the support rib 400 is 0.3 mm to 0.5 mm. In this way, while ensuring the strength of the support rib 400, the support rib 400 can have a certain shock absorbing effect, and the space of the flow channel can be as large as possible, thereby ensuring the heat dissipation effect.

The three-dimensional lattice structure (comprising one or more combinations of polyhedrons, planar bodies, cones, rhombuses, stars, and spheroids) is formed with air flow channels and has a certain degree of elasticity, achieving air flow exchange and cushioning functions through structural compression deformation. In actual application, the density of the breathable cushioning module can be adjusted by changing the three-dimensional lattice structure, the type of material selected, the thickness of the support ribs 400, and the like.

As an option, the material of the passage body 4 is one of photo-curable resin material, thermoplastic rubber, thermoplastic elastomer, polyurethane elastomer, nylon elastomer, polyester elastomer, EVA elastomer and silicone elastomer. In this regard, the person skilled in the art can flexibly configure according to actual needs.

In the present disclosure, the shoe sole also comprises a protective frame, wherein the protective frame is formed with a first support portion adapted to the passage body 4, a second support portion adapted to the support body and a third support portion provided between the passage body 4 and the support body.

In this way, not only the supporting effect of the shoe sole can be improved, but also the supporting body and the passage body 4 can be given a certain safety protection effect.

In an embodiment provided by the present disclosure, it is provided that the passage body 4 is connected to the insole 2 and the support sole via a plug and tenon structure, and wherein the two end surfaces of the passage body 4 are glued and connected to the support sole and the insole 2, respectively; the support body is glued and connected to the insole 2. This enables quick assembly of them, and wherein the glue can ensure the strength of the connection and prevent slipping.

In this disclosure, the insole 2 is provided with at least two specifications of ventilation holes, thereby dissipating sweat and dissipating heat. The surface of the insole 2 is provided with a waterproof coating, which plays a certain waterproof role. In addition, different combinations of ventilation holes and breathable and waterproof coatings can be provided according to different wearers, thereby achieving the waterproof and breathable functions of the insole 2.

In an embodiment provided by the present disclosure, it is provided that the side of the long sole 1 that contacts the ground is the contact surface, wherein the contact surface is provided with several rows of gripping nails 5, and wherein the gripping nails 5 are distributed over the entire contact surface. As a result, the weight of the long sole 1 can be significantly reduced and stable support can be provided in the meantime.

According to 4 The gripping nail 5 has a triangular shape. The specially developed triangular nail-shaped resin particles not only ensure effective drainage on wet and slippery roads, but also significantly improve the friction performance of wet and slippery floors.

"-förmigen Abschnitt und einen mit dem „

"-förmigen Abschnitt verbundenen „

"-förmigen Abschnitt, wobei sich der „

"-förmige Abschnitt zur Außenseite des Fußes erstreckt und die Form eines „

" hat, wobei sich der „

"-förmige Abschnitt zur Innenseite des Fußes erstreckt und die Form eines „

" hat; im Fersenbereich ist jede Reihe von Greifnägeln 5 geneigt vorgesehen, wobei die Richtung, in der der Vorfuß zur Ferse zeigt, die Höhenrichtung ist. In jeder Reihe von Greifnägeln 5 ist die Position der Greifnägel 5 nahe an der Außenseite des Fußes tiefer als die Position der Greifnägel 5 nahe an der Innenseite des Fußes. Durch die speziell angeordneten Greifnägel 5 kann eine effektive Entwässerung auf nassen und rutschigen Straßen gewährleistet werden, zudem kann das Reibverhalten auf nassem und rutschigem Boden deutlich verbessert werden.In addition, each row of gripping nails 5 includes a “

"-shaped section and one with the "

"-shaped section connected "

"-shaped section, with the "

"-shaped section extends to the outside of the foot and has the shape of a "

", whereby the "

"-shaped section extends to the inside of the foot and has the shape of a "

"; in the heel area, each row of gripping nails 5 is provided at an incline, with the direction in which the forefoot points to the heel being the height direction. In each row of gripping nails 5, the position of the gripping nails 5 close to the outside of the foot is lower than the position of the gripping nails 5 close to the inside of the foot. The specially arranged gripping nails 5 can provide effective drainage on wet and slippery roads can be guaranteed, and the friction behavior on wet and slippery ground can be significantly improved.

In this disclosure, the long sole 1 uses a double-layer material made of polyester resin fibers and resin particles and uses a base fabric that is adhered to the shoe pattern.

In this disclosure, at least two escape grooves are provided on the flange of the support sole, with the escape groove being provided at the outer position of the sole of the foot. With this setting, it is advantageous to ensure the wrapping and stability of the sole of the foot while allowing comfortable movement of the foot.

According to a third aspect of the present disclosure, a shoe is provided.

Specifically, it is intended that the shoe comprises a shoe sole as described in the second aspect. Therefore, the shoe has the same technical effect as the shoe sole.

Note that the shoe also includes a shoe sole manufactured using the method for manufacturing the shoe sole of the first aspect of the present disclosure and therefore has the same technical effects as the manufacturing method, and in order to avoid repetition, details are omitted here.

The above are the embodiments of the present application, and the present application is not limited to the above-mentioned optional embodiments, however. Those skilled in the art can arbitrarily combine the above-mentioned methods to obtain other several embodiments, and anyone can obtain various other embodiments under the inspiration of the present application.

Claims (10)

Breathable and cushioning shoe sole, characterized in that it comprises a long sole (1), an insole (2) and a sole made of Brabant fabric (3), wherein the long sole (1) is applied to the underside of the midsole (2) and the sole made of Brabant fabric (3) is applied to the top of the insole (2); wherein the insole (2) is provided with an upwardly extending flange, wherein the area surrounded by the flange forms a receiving area, wherein the receiving area comprises a forefoot area and a heel area, wherein the forefoot area is provided with a passage body (4), wherein the heel area is formed with a support body which projects upwards and serves to support the support feet; and wherein the passage body (4) is formed as a three-dimensional lattice structure made up of a plurality of support ribs (400), wherein various support ribs (400) are provided crosswise to form flow channels for gas circulation, wherein several flow channels penetrate through one another. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the passage body (4) is connected to the insole (2) by a plug and tenon connection. Breathable and cushioning shoe sole according to Claim 1 , characterized in that an adhesive element is arranged on the upper surface of the support body and the outer circumference of the passage body, and that the insole (2) connects the passage body (4) and the support body via the adhesive element. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the rib thickness of the support ribs (400) is greater than or equal to 0.3 mm and less than or equal to 4 mm and/or the side length of the unit structure formed by the support ribs (400) is greater than or equal to 3 mm and less than or equal to 20 mm. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the passage body (4) is a light-curing resin material, a thermoplastic rubber, a thermoplastic elastomer, a polyurethane elastomer, a nylon elastomer, a polyester elastomer, an EVA elastomer or an organosilicone elastomer. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the three-dimensional lattice structure comprises at least one polyhedron, planar bodies, cones, rhombuses, stars or spheroids. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the surface of the insole (2) is provided with a waterproof coating. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the breathable and cushioning shoe sole also has a protective frame, wherein the protective frame is provided with a first support section adapted to the passage body (4), a second support section adapted to the support body and a the passage body (4) and the support body provided third support section. Breathable and cushioning shoe sole according to Claim 1 , characterized in that the side of the long sole (1) which touches the ground is the contact surface, wherein the contact surface is provided with several rows of gripping nails (5), and wherein the gripping nails (5) are distributed over the entire contact surface to provide a stable hold. Breathable cushioning shoe, characterized in that it has a breathable and cushioning shoe sole according to one of the Claims 1 until 9 having.

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