Cushioning element for sports clothing and method for producing same

Abstract

To provide an improved cushioning element for sport clothing, specifically, a sole for sport shoe.SOLUTION: According to an aspect of the present invention, provided is a cushioning element for sport clothing including a first deformation element. The deformation element includes a plurality of particles of foaming material randomly arranged. A first air gap exists in the inside of the particles and / or between the particles.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cushioning element for sports clothing, in particular to a sole for a sports shoe. do. [Background technology]

[0002] Cushioning plays a major role in the field of sports clothing, and a wide variety of sports It is used in sportswear, typically winter sports clothing and running wear. , outdoor clothing, football wear, golf clothing, martial arts clothing, etc. Generally, the cushioning element protects the wearer from a shock or blow, for example if the wearer falls. For this reason, the cushioning element is usually It deforms under the external effect of, and thereby absorbs the impact energy. Contains one or more transformation elements.

[0003] A particularly important role is played by the cushioning elements in the construction of shoes, especially sports shoes. Due to the cushioning elements in the sole, the shoes have different characteristics depending on the specific type of shoe. They have many different properties that can vary widely. Mainly, the shoe sole They have a protective function. Due to the stiffness of the shoe sole being higher than that of the shoe shaft, , for example, caused by pointed or sharp objects that the wearer of the shoe may step on. In addition, the shoe sole is designed to protect the wearer's feet against injury caused by the impact of the shock. This usually protects the shoe from excessive wear. This improves the contact of the shoe with the ground, allowing for faster movements. A further function of the shoe sole may be to provide a certain stability. , for example to reduce the effects of contact between the shoe and the ground Finally, the shoe sole can protect the foot from mud or splashes of water. , and / or a wide variety of other functions may be provided.

[0004] It can be used to manufacture cushioning elements for sports clothing to accommodate multiple functions. Various materials capable of this are known from the prior art.

[0005] Typically, in the form of a shoe sole, ethylene vinyl acetate (EVA), thermoplastic polyester, polyurethane (TPU), rubber, polypropylene (PP), or polystyrene (PS) Each of these different materials has its own characteristics for each shoe type. Depending on the specific requirements, different special For example, TPU is highly abrasion-resistant and tear-resistant. Furthermore, EVA is a popular choice due to its high stability and relatively good cushioning properties. In addition, the use of foam materials, specifically expanded thermoplastic urethane (eTPU), The use of foamed thermoplastic urethane was taken into account for the manufacture of the shoe sole. and has particularly good properties of elasticity and cushioning. According to the 066250 brochure, the foamed thermoplastic urethane sole is made with additional adhesive. It can be connected to the shoe shaft without using any adhesive.

[0006] Furthermore, U.S. Patent Application Publication No. 2005 / 0150132A1 discloses that during normal use The beads are then moved around by pressure on the tread surface by the wearer's foot. Footwear (e.g., shoes, sandals) constructed of small beads packed into a surface , boots, etc.) in German Patent Application Publication No. 10 2011 108 744 A1. No. 5,393,366 discloses a method for the manufacture of a sole or part of a sole for a shoe. WO 2007 / 082838A1 brochure describes a method for producing a thermoplastic polyurethane-based US Patent Application Publication No. 2011 / 0047720A1 discloses a foam that is A method for manufacturing a sole assembly for an article is disclosed. / 015440A1 discloses a method for forming a composite material.

[0007] However, one drawback of the cushioning elements known from the prior art, in particular the known shoe soles, is However, their breathability is low, which increases sweating or heat accumulation under clothing. This can significantly reduce the wearing comfort of sports clothing that includes cushioning elements. This is especially true when clothing is worn for longer periods, such as during a walking trip or a round of golf or when It is disadvantageous if worn continuously during intersports. This often significantly increases the overall weight of sports clothing, especially in endurance sports. Or, when running, it may have a negative effect on the wearer's performance. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] International Publication No. 2005 / 066250 Brochure [Patent Document 2] US Patent Application Publication No. 2005 / 0150132A1 [Patent Document 3] German Patent Application Publication No. 10 2011 108 744 A1 [Patent Document 4] International Publication No. 2007 / 082838A1 Brochure [Patent Document 5] US Patent Application Publication No. 2011 / 0047720A1 [Patent Document 6] International Publication No. 2006 / 015440A1 Brochure Summary of the Invention [Problem to be solved by the invention]

[0009] Starting from the prior art, the object of the present invention is therefore to provide a method for producing a sportswear, in particular a sportswear The object of the present invention is to provide a better cushioning element for the sole of a sports shoe. Further objects of the present invention are to improve the breathability of such cushioning elements and to further reduce their weight. The aim is to reduce [Means for solving the problem]

[0010] According to a first aspect of the present invention, this problem is solved by forming a plurality of randomly arranged particles of a foam material. A sole for a sports garment, in particular for a sports shoe, comprising a first deformation element having For this reason, the first voids are formed inside and / or between the particles by the buffer element. exist.

[0011] The use of foam materials for constructing deformation elements for cushioning elements of sports clothing is This is particularly advantageous since the material is very light and at the same time has very good cushioning properties. The randomly arranged foam material can be easily handled and does not require orientation during manufacturing. The use of such particles considerably facilitates the manufacture of such cushioning elements. For example, the deformation element or the buffer element, respectively, can be formed under pressure or by using a carrier fluid. The particles can be packed into the mold used to produce the foam. or by virtue of their internal voids, the weight of the deformation elements and therefore of the cushioning elements is much Reduce.

[0012] In a preferred embodiment, the particles of foam material are made of the following material: foamed ethylene vinyl acetate. , Thermoplastic urethane foam, Polypropylene foam, Polyamide foam, Polyether foam amide, polyoxymethylene foam, polystyrene foam, polyethylene foam, poly oxyethylene, foamed ethylene propylene diene monomer, or a combination thereof. According to a specific requirement profile, one or more of these materials may be used. These numbers can be used advantageously in manufacturing due to the inherent properties of these materials.

[0013] In a further preferred embodiment, the particles of the foam material have the following cross-sectional shape: ring-shaped The particle shape may be one or more of the following: oval, square, polygonal, circular, rectangular, star-shaped. Depending on the state, the size, arrangement, and shape of the voids between or within the particles, and therefore The density of the finished deformation elements may be affected. This means that they have less cushioning. This can affect the weight, insulation, and breathability of the material.

[0014] According to another aspect of the invention, the first deformation element is a particle of foam material inserted into the mold. After said insertion into the mold, they are subjected to a heating step and / or a pressure step and / or The particles are produced by exposing the particles to a steam heating process, which causes the surface of the particles to be at least It may be partially melted so that the surfaces of the particles bond after cooling. The particles are chemically decomposed by a heating process and / or a pressurizing process and / or a steam heating process. The reaction can form bonds that are extremely strong and durable. The use of additional bonding agents, such as adhesives, is not required.

[0015] This allows random deformation of the foam material without risking the loss of the necessary stability of the first deformation element. A first deformation element including a "loose" arrangement of arranged particles, the ... voids and / or channels or cavities (see below), or even such voids , it is possible to manufacture a cushioning element having a network of channels and cavities. By partially dissolving the particle surface, e.g., by a steaming process or some other process. The resulting bond is in particular the surface of such a first deformation element or cushioning element. Sufficient to ensure that particles disposed therein are not "plucked off" during use of the element. Resistant to.

[0016] Furthermore, this makes production, among other things, easier, safer and more cost-effective. More environmentally friendly. For example, by adjusting the pressure or duration of the process, the foam The size and shape of the voids between the particles of the material can be affected, which is due to the already mentioned This can affect the weight, insulation, and breathability of the cushioning element.

[0017] In a preferred embodiment, the particles are concentrated to a concentration of 10 to 150 g / l, preferably 10 to 150 g / l, prior to being inserted into the mold. Preferably the density is from 10 to 100 g / l, and particularly preferably from 10 to 50 g / l.

[0018] According to a further aspect of the invention, the first deformation element is adapted to deform particles of foam material into a foam that is subsequently removed. or further material that at least partially remains within the first gap of the first deformation element. By mixing the particles, the intergranular particles can be formed. On the other hand, it is possible to completely remove the second material from the voids. If not completely removed, this can increase the stability of the deformation element.

[0019] In a further embodiment, a solidification liquid is present in the first gap of the deformation element. The solidification liquid is For example, it is used to fill a form with particles of a foaming material and the heating / pressure process / It may be a carrier fluid that has solidified during the steaming process. Alternatively, it may be a carrier fluid that is inserted into the mold. The particles can be continuously covered with the liquid during the heat / pressure / steam treatment. whereby the liquid gradually solidifies.

[0020] The first gap preferably forms one or more cavities in which air is trapped. In this way, the thermal insulation of the cushioning element may be increased.

[0021] Of course, air has a lower thermal conductivity than solid matter, e.g. particles of foam material. Therefore, by interspersing the first deformation element with air-filled cavities, , so that the wearer's feet are better insulated against loss of body heat, for example, through the feet. The overall heat conduction of the deformation element and therefore the cushioning element can be reduced.

[0022] In principle, cavities can also trap other types of gases or liquids within them. or they can be empty.

[0023] According to a further aspect of the invention, the first void is a first void that is permeable to air and / or liquid. The deformation element is formed with one or more channels passing therethrough, thereby allowing the deformation element to pass through the Tempers rise.

[0024] In this case, the use of randomly arranged particles is particularly advantageous. Such channels allow particles to be packed into the mold without requiring a specific arrangement of particles. , which develop independently with a certain statistical probability. This reduces the manufacturing costs of such transformation elements. is significantly reduced.

[0025] Of course, typically some of the first voids will have air trapped within them. One or more cavities may be formed, some of the first voids being filled with air and / or or the possibility of forming one or more channels through the first deformation element, through which the liquid may pass. There is.

[0026] The first voids between the randomly arranged particles are primarily cavities that trap air within them. Whether the current is forming a channel or not, or whether it is mainly forming the aforementioned channel, is irrelevant. The size, shape, material, density, etc. of randomly placed particles, as well as the temperature, pressure, and particle power It may also depend on manufacturing parameters such as packing density, etc. may be subject to pressure loads on the deformation elements.

[0027] For example, a first deformation element located in the heel region or forefoot region of the shoe. during the gait cycle, e.g., during heel strike or push-off on the forefoot Under such pressure load, the first deformation element may be penetrated. A channel with a large area may be blocked by randomly arranged particles that have been compressed and deformed. Also, during landing or pushing off, the foot may be in close contact with the inside of the shoe. This may reduce the breathability of the sole. The sealing of the shell causes the formation of further cavities inside the first deformation element, and the inside This may trap air in the sole and therefore increase the insulation of the sole. However, if the sole is in contact with the ground, a lot of body heat can be lost here, so This is especially important when

[0028] On the other hand, after the foot pushes off, the randomly arranged particles of the first deformation element re-expand and In addition, the expansion may cause the air gap under load to reopen. Some of the cavities are open, forming channels through the first deformation element that allow air and / or liquid to pass through. It is thought that the foot may form a gap in the gait cycle. Therefore, there may be no intimate contact with the inner surface of the fuse during this stage. It is believed that the insulation may be increased, but the insulation may be decreased. .

[0029] This between the formation of channels and the formation of cavities inside the first deformation element depending on the compression state. The interaction may be in a direction favorable to the air flow through the first deformation element, e.g. The direction of compression and re-expansion can be achieved by placing the In the first deformation element, for example, compression and re-expansion in the foot-to-ground direction during the gait cycle are Directing and controlling airflow in a direction from the ground through the first deformation element to the outside of the foot or shoe There is a possibility.

[0030] Such an induced air flow is specifically directed at randomly arranged particles of a foam material, e.g. The high energy return provided by the first deformation element, which includes eTPU, For example, the random placement of the eTPU The first deformation element, which is arranged in the forefoot region and contains particles, is, on the one hand, a deformation element that is arranged in the forefoot region and that is arranged in the forefoot region. On the other hand, it also provides high energy return to the wearer's foot when the wearer pushes off. The reinflation of the deformation element creates a directed or directed inflow of air into the forefoot region. The re-expansion of the first deformation element can provide good ventilation and cooling of the foot. further causes a suction effect, drawing air through the first deformation element into the channel. This may further aid in ventilation and cooling of the feet. Such efficient cooling can bring more "energy" to the wearer's feet, to improve the performance, fitness and endurance of athletes.

[0031] The above example specifically targets the first deformation element disposed in the forefoot region. , the main object is achieved by an embodiment of the cushioning element of the invention, which comprises a first deformation element By illustrating the possible advantageous combinations of energy return and directed airflow, This effect was also observed in other areas of the sole or in completely different sports clothing. It will be apparent to those skilled in the art that compression and The direction of expansion and re-expansion and the direction of air flow guidance depend on the specific arrangement of the first deformation element and its This may vary depending on the intended use.

[0032] Furthermore, the manufacture of the cushioning element may also include a first deformation element that is permeable to air and / or liquid. This may involve the construction of one or more predefined channels therethrough.

[0033] This allows, for example, to further balance the insulating properties against the breathability of the cushioning element. The predetermined channel(s) can be, for example, formed in a mold used to manufacture the cushioning element. The stent may be constructed with corresponding protrusions or needles in the stent.

[0034] In a further optional embodiment, the cushioning element is a reinforcing element, in particular a textile reinforcing element and and / or membrane-like and / or fiber-like reinforcing elements. To produce deformation elements with very low density / very low weight and a large number of voids, At the same time it becomes possible to ensure the required stability of the deformation element.

[0035] In one preferred embodiment, the reinforcing element is provided as a film comprising a thermoplastic urethane. The thermoplastic urethane film is a composite of particles of a foam material, particularly foamed thermoplastic urethane particles. Particularly well suited for use.

[0036] Furthermore, in a preferred embodiment, the membrane is permeable to air and / or liquid in at least one direction. Thus, the membrane may be permeable to air in one or both directions, for example. Alternatively, the membrane may be permeable to liquid in only one direction, thus , it can be protected against external moisture, e.g. water.

[0037] In one particularly preferred embodiment, the first void is a gap of air and and / or a cushioning element forming one or more channels for the passage of liquid, In particular, textile reinforcing elements and / or membrane-like reinforcing elements, in particular membranes containing thermoplastic urethanes, and / or fiber-like reinforcing elements, whereby the reinforcing elements are combined with the first deformation element Air and / or liquid passing through one or more channels in the reinforcing element A small number of devices arranged to allow passage in at least one direction through one opening This allows the ventilation provided by the channel to be At least one of the reinforcing elements is provided with sufficient stability of the deformation element without affecting the deformation element. If one opening only allows liquids to pass in the direction from the foot to the outside, the reinforcing element may also It can help protect against external moisture.

[0038] According to a further aspect of the invention, the first deformation element raises a first partial region of the cushioning element. The cushioning element further includes a second deformation element, whereby the characteristics of the cushioning element are different in different regions. may be selectively affected in order to provide structural freedom and greater impact. The likelihood of this happening increases.

[0039] In a preferred embodiment, the second deformation element comprises a plurality of randomly arranged particles of foam material. , so that on average, inside and / or between the particles of the second deformation element This results in a second gap that is smaller than the first gap of the first deformation element. In this case, on average The size of the second void is smaller than that of the first void because, for example, the density of the foam material of the second deformation element is high, Therefore, it may be more stable and stiff, but also less breathable. This means combining different deformation elements with (on average) different size voids. Therefore, the properties of the deformation element may be selectively affected in different regions. There is.

[0040] For example, the particles randomly arranged in the first deformation element and the manufacturing parameters are air and a first deformation element, which allows air and / or liquid to pass through and thus creates good ventilation in this area; It is contemplated that the first voids may be selected to primarily form channels throughout the element. The randomly arranged particles in the second deformation element and the manufacturing parameters determine whether the second void is It mainly forms a cavity that traps air inside, thus creating good insulation in this area. The opposite is also contemplated.

[0041] In one particularly preferred embodiment, the cushioning element is at least part of the shoe sole, in particular Specifically, the midsole is designed as at least a part of the midsole. The cushioning element is designed as at least a part of the insole of the shoe. Various embodiments of deformation elements, each with different properties, can be combined with each other. and / or suitable for the sole and / or midsole and / or insole For example, the toe and forefoot areas may be positioned in areas that are permeable to air. In addition, the intermediate region ensures better stability. In order to achieve a more comfortable walking experience, it is preferable to have a more inflexible structure. For optimal support, the heel and forefoot areas of the sole have special padding. The extremely diverse requirements for different shoe types and types of sports are preferred. This allows the sole to be precisely tailored to the requirements according to the embodiments described herein. It is possible.

[0042] According to a further aspect of the invention, different regions or different deformation elements are respectively provided as cushioning elements. The possibility of placing them inside the device lies in manufacturing them together during the manufacturing process. For example, a mold may be loaded with particles of one or more types of foaming material. For example, a first partial area of ​​the mold is filled with a first type of particles of the foam material and a second partial area of ​​the mold is filled with a first type of particles of the foam material. The partial regions are loaded with a second type of particles. The particles are The sizes, their densities, their colors, etc. of the moulds may also differ. Individual particle regions may be filled with non-foaming material. After particle insertion, further foaming may be performed, if desired. The materials are placed in a mold and, as previously described herein, are subjected to a pressing process and The individual parts of the mold may be subjected to a steaming step and / or a heating step. Pressurization and / or steaming steps in the min area, e.g. pressure, duration of treatment, temperature, etc. By appropriate selection of the heating process and / or the parameters of the heating process and by appropriate tool adjustment By mechanical adjustment, the properties of the produced cushioning element can be further influenced in the individual part regions. There is a possibility that it will be affected.

[0043] A further aspect of the invention is a shoe, in particular a sole according to one of the previous embodiments, in particular More particularly, the present invention relates to a sports shoe having a midsole and / or an insole. The specification further illustrates different aspects of the described embodiments and aspects of the invention in terms of soles and shoes. They can be advantageously combined according to the requirements profile of the individual If features are not important for each intended use of the shoe, they may be excluded. can.

[0044] In the following detailed description, presently preferred embodiments of the cushioning element according to the present invention will be described with reference to the following figures: It is described in reference to the [Brief description of the drawings]

[0045] [Figure 1] 1A-1C are diagrams of an embodiment of a cushioning element configured as a midsole. [Diagram 2] 1 is a diagram of an embodiment of a particle of foam material having an oval cross-sectional shape. [Diagram 3] FIG. 2 illustrates an embodiment of a cushioning element provided as a midsole, with a solidifying liquid present within the first void. [Figure 4] FIG. 2 shows an embodiment of a cushioning element provided as a midsole with a first reinforcement element and a second membrane-like reinforcement element. [Diagram 5] 1 is a cross-sectional view of a shoe according to an embodiment of the present invention, comprising a cushioning element configured as a sole and a reinforcing element including a series of openings for the passage of air and liquid. [Figure 6] FIG. 13 shows a further embodiment of the cushioning element with a deformation element provided as a midsole and constituting a first partial region of the cushioning element. [Figure 7] 13A-13C are diagrams of a cushioning element configured as a midsole including a first deformation element and a second deformation element according to a further embodiment of the present invention. [Figure 8a] FIG. 13 is a diagram of the effect of compression and re-expansion of randomly positioned particles on airflow through a first deformation element. [Figure 8b]FIG. 13 is a diagram of the effect of compression and re-expansion of randomly positioned particles on airflow through a first deformation element. [Figure 9a] 1 is a diagram of an embodiment of a shoe according to the invention, including an embodiment of a cushioning element according to the invention; [Figure 9b] 1 is a diagram of an embodiment of a shoe according to the invention, including an embodiment of a cushioning element according to the invention; [Figure 9c] 1 is a diagram of an embodiment of a shoe according to the invention, including an embodiment of a cushioning element according to the invention; [Figure 9d] 1 is a diagram of an embodiment of a shoe according to the invention, including an embodiment of a cushioning element according to the invention; [Figure 9e] 1 is a diagram of an embodiment of a shoe according to the invention, including an embodiment of a cushioning element according to the invention; [Figure 9f] 1 is a diagram of an embodiment of a shoe according to the invention, including an embodiment of a cushioning element according to the invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0046] In the following detailed description, a presently preferred embodiment of the invention will be described with reference to a midsole. However, it should be noted that the present invention is not limited to these embodiments. For example, The present invention also relates to insoles and other sportswear, such as shin guards, martial arts They can also be used in protective clothing, cushioning elements in the elbow or knee area for winter sports clothing, etc. good.

[0047] FIG. 1 illustrates a portion of a midsole according to an embodiment of the present invention, which includes a deformation element 110. The deforming element 110 is a plurality of randomly arranged pieces of foam material. The particle 120 is disposed in the cavity 130 such that the first void 130 extends into the particle 120. and / or contained therein.

[0048] In the embodiment shown in FIG. 1, the deformation element 110 constitutes the entire cushioning element 100. However, in a further preferred embodiment, the deformation element 110 is one of the cushioning elements 100. The cushioning elements 100 each occupy only one or more partial regions. It is possible to include several deformation elements 110 forming a sub-region of zero. Thus, the different deformation elements 110 in the various partial regions of the cushioning element 100 may be made of the same foam material or Each of the deformation elements 110 may include particles 120 of different foam materials. The gaps 130 between the first and second electrodes 120 may each have, on average, the same size or different sizes. good.

[0049] The average size of the voids can be determined, for example, by measuring a given sample of the manufactured deformation elements, e.g. 1 cm of deformation element 3 The volume of the void at A further possibility is to determine the average size, for example, of a certain number of voids, for example 10 voids. , and then averaging the measurements. For example, the maximum and minimum distances between the walls of each cavity may be important. If not, it is another value that can be consistently measured by one skilled in the art.

[0050] By appropriate combination of different foam materials and / or different average sizes of the voids 130, The deformation elements 110 having different characteristics regarding the construction of the cushioning element 100 can be combined with each other. Thereby, the properties of the cushioning element 100 can be influenced locally by selection It's possible.

[0051] Now, as shown in FIG. 1, a cushioning element 10 according to one or more embodiments of the present invention. 0 is not only suitable for the manufacture of shoe soles, but also has advantages in other areas of sportswear. It must be pointed out again that the .DELTA..times ...

[0052] In a preferred embodiment, the particles 120 of foam material are specifically made of the following materials: Ethylene vinyl acetate foam (eEVA), thermoplastic urethane foam (eTPU), polypropylene foam Polypyrene (ePP), Expanded Polyamide (ePA), Expanded Polyether Block Amide (eP EBA), Expanded Polyoxymethylene (ePOM), Expanded Polystyrene (ePS), Expanded Poly Expanded polyethylene (ePE), Expanded polyethylene (ePOE), Expanded polyoxyethylene (eP OE), Expanded Ethylene Propylene Diene Monomer (eEPDM), It is possible to do so.

[0053] Each of these materials may be advantageously used in the manufacture of the cushioning element 100 according to its respective requirement profile. Therefore, in particular, eTPU has certain properties that allow it to be used at higher temperatures or eTPU has excellent cushioning properties that remain unchanged even at lower temperatures. The energy stored during compression is almost completely released during the subsequent expansion. This is particularly advantageous in the embodiment of the cushioning element 100 used in shoe soles.

[0054] To manufacture such a cushioning element 100, according to a further aspect of the invention, a foam material Particles of material 120 are introduced into the mold and, after filling of the mold, a heating and / or pressure step is performed. The food may be subjected to a heating step and / or a steaming step. By varying the parameters of the steaming process, the properties of the produced cushioning elements can be further improved. In particular, the pressure to which the particles 120 are exposed in the mold may affect the This can affect the resulting thickness of the manufactured cushioning element, or the shape or thickness of the cavity 130. Also, the thickness and size of the void 130 can be influenced by the size of the void 130 itself. The size is thereby dependent on the pressure used to insert the particles 120 into the mold. So, for example, in one embodiment, the particles 120 are forced into the mold by compressed air or a carrier fluid. may be introduced into

[0055] The thickness of the produced cushioning element 100 is determined by the (average) thickness of the particles 120 of the foam material before filling of the mold. It is further influenced by the density. In one embodiment, before filling of the mold, the density is 10 to 1 50 g / l, preferably 10 to 100 g / l, particularly preferably 10 to 50 These ranges are suitable for the application of softeners for sportswear, especially for shoe soles. It has been found to be particularly advantageous for the manufacture of impact elements 100. However, specific applications for sports clothing have also been found to be advantageous. Depending on the requirements profile, other densities are also conceivable. Therefore, higher densities are possible, e.g. For example, this takes into account the cushioning element 100 of the shin guard, which must absorb higher forces. whereas in the sleeve cushioning elements 100, for example, lower densities are also possible. By appropriately selecting the density of the particles 120, the properties of the cushioning element 100 can be adjusted to meet each requirement. May be favorably affected according to the file.

[0056] It will be appreciated that the manufacturing methods, options and parameters described herein may The first includes a “loose” arrangement of randomly arranged particles 120, as shown in FIG. This allows the manufacture of a cushioning element 100 with deformation elements 110. 13) or even further forming a void network. 0, even in the presence of channels and cavities between the randomly arranged particles 120, The necessary stability of the deformation element 110 of the particle 120 can be obtained by, for example, by at least partially melting the The resulting coupling is in particular due to the first deformation element 110 or the buffer element. It is ensured that the particles 120 disposed on the surface of the element 100 are not "plucked off" during use. Strong enough to.

[0057] According to a further aspect of the invention, the particles 120 of the expanded material for the manufacture of the cushioning element 100 are First, it is mixed with a further material. This can be particles, powder or other materials that are either foamed or non-foamed. It may be a powder, gel, liquid, etc. In a preferred embodiment, the wax-containing material or A material that acts like a wax is used. In a preferred embodiment, the additional material is added to the subsequent manufacturing process. In the manufacturing step, for example, the mixture may be filled into a mold and / or heated. After the heating and / or pressing process, the mold is removed from the cavity 130. The additional material can be added, for example, by further heat treatment, by compressed air, or by a solvent. The void 130 may again be removed. By appropriately selecting the ratio between the amount of material removed and the amount of material added, and the method by which further material is removed again, , the characteristics of the deformation element 110 and the resulting cushioning element 110, in particular the shape and However, in another embodiment of the present invention, the additional material The material remains at least partially within the gap 130. This means that, for example, the cushioning element 1 00's stability and / or tensile strength.

[0058] According to a further aspect of the invention, the particles 120 may also exhibit a variety of cross-sectional shapes. For example, ring-shaped, oval, square, polygonal, circular, rectangular, or star-shaped cross-sections. Particles 120 may be present. Particles 120 may have a tubular shape, i.e. A closed structure that may contain a channel or may enclose an internal hollow space. The shape of the particles 120 determines the packing of the particles 120 after insertion into the mold. Packing density has a significant effect on the packing density. It further depends on the pressures under which they are molded or to which they are exposed in the mold, respectively. The shape of the particle 120 influences whether the particle 120 includes a continuous channel or a closed surface. The same applies to the pressure used during filling of the mold or the pressure inside the mold. Similarly, the shape and average size of the voids 130 between the particles 120 are also affected. There is a possibility that this could happen.

[0059] Additionally, the pressure used during the formation and packing of the particles 120 and / or within the mold may be The gap 130 may include one or more channels that allow air and / or liquid to pass through the deformation element 110. According to an embodiment of the present invention, the particles 120 are randomly arranged and the likelihood of forming a channel is determined. Therefore, certain expensive manufacturing steps, such as alignment of particles 120 or complex template forming, are not required. By themselves, such continuous chisels can be calculated with a certain statistical likelihood without requiring the use of This likelihood depends, as already mentioned, inter alia, on the shape of the particle 120, in particular It depends on the maximum achievable packing density of the particles 120 for a given shape. For example, cubic particles 120 are generally packed more densely than star-shaped or circular / oval particles 120. packing, which results in smaller voids 130 on average; The likelihood of developing air and / or liquid channels is reduced. Air is also gaseous and and therefore passes through very small channels that are impermeable to liquids due to the surface tension of the liquid. This means that there is a higher probability that air channels will develop. In particular, according to an embodiment of the present invention, the shape of the particles 120 can be adjusted without increasing the manufacturing effort. and / or a suitable packing pressure for the particles 120; and / or or heating and / or pressure steps to which the particles 120 may be subjected within the mold. and / or by applying the parameters of the steaming process, the deformation element 120 can be manufactured. This means that these deformation elements 110 are indeed breathable, but at the same time, they are also permeable to liquids. This combination of properties is essential for sports clothing worn outside closed rooms. This is particularly advantageous.

[0060] Additionally, the first void 130 may also form one or more cavities in which air is trapped. In this way, the thermal insulation of the cushioning element 100 may be enhanced. However, the air may contain solid matter, such as particles 120 of a foam material, which has a lower thermal conductivity. Therefore, it is possible to intersperse the first deformation element 110 with air-filled cavities. Thus, the overall thermal conductance of the first deformation element 110 and therefore the cushioning element 100 is For example, reducing the loss of body heat through the feet so that the wearer's feet are better insulated can be done.

[0061] Generally, some of the first voids 130 may include one or more cavities that trap air therein. some of the first voids 130 may form a second void that is permeable to air and / or liquid. One or more channels may be formed across one deformation element 110 .

[0062] As already suggested in the previous paragraph, the first gap 130 between the randomly arranged particles 120 The pores form cavities that mainly trap air therein or are mainly permeable to air and / or liquid. Whether or not a channel is formed depends on the size, shape, and material of the randomly arranged particles 120. , density, etc., and also depending on manufacturing parameters such as temperature, pressure, packing density of the particles 120. It may also be possible to determine whether the first deformation element 110 or the cushioning element 100 is It may be subject to pressure overload.

[0063] For example, the forefoot or heel region of the first deformation element 110 may be For example, during heel strike or forefoot push-off, the shoe will experience strong compression. Under such pressure load, any possible channels penetrating the first deformation element 110 are sealed. Also, during landing or pushing off, the foot comes into contact with the upper surface of the cushioning element 100. This may reduce the air permeability. However, sealing the channel The stoppage causes the formation of additional cavities inside the first deformation element 110, trapping air inside them. 3 and thus enhance the thermal insulation of the cushioning element 100, which here This is particularly important during ground contact as body heat may be lost.

[0064] After the foot pushes off, on the other hand, the randomly arranged particles 120 of the first deformation element 110 re-expand. In the expanded state, the channel may be stretched and reopened. Some of the cavities in the first deformation element 11 are open in the first deformation state to allow air and / or liquid to pass through. It is thought that the foot may form a channel through the vertebrae. During such a period, it may no longer be in intimate contact with the upper surface of the cushioning element 100. It is believed that ventilation may increase during this stage, while insulation may decrease. It is considered that there is a possibility of

[0065] Between channel formation and cavity formation inside the first deformation element 110 depending on the compression state. The interaction of the first deformation element 110 and the cushioning element 100 provides a preferred direction for air flow. , for example, in the direction of compression and re-expansion. The cushioning element 100 may, for example, undergo compression and re-expansion in the foot-to-ground direction during the walking cycle. The tension guides and controls air flow within the cushioning element.

[0066] 8a-8b show air directed through the buffer / deformation element discussed in the previous paragraph. A first deformation element 810 containing randomly arranged particles 820 of a foam material is shown. Buffer element 800 is shown having particles 820 between and / or within them. In the illustrated embodiment, the first void 830 is in the compressed state. In the first deformation element 810, the deformation is affected by a pressure acting in the vertical direction. The tensioned state is shown, with the (main) direction of re-expansion indicated by arrow 850.

[0067] It is to be understood that FIGS. 8a-8b are merely for illustrative purposes and that It is well understood that conditions may deviate from the exact conditions found in the actual buffer elements. In particular, the actual buffer element includes particles 820 and voids. 830 forms a three-dimensional structure, whereas only two dimensions can be shown here. Specifically, in the actual cushioning element, the channels that may be formed by the voids 830 8a-8b, including the direction perpendicular to the image plane, the first deformation element 8 This means that there is a possibility of "snakes its way through" the number 10.

[0068] In the compression diagram 8a, individual particles 820 are compressed and deformed. Due to its shape, the voids 830 within the first deformation element 830 may change their size and location. In particular, the channel meandering through the first deformation element 810 under unloaded conditions is , where it is believed that it may be blocked by some of the deformed particles 820. On the other hand, the additional cavity may be, for example, a part of the channel that is sealed or blocked, which may result in the first deformation element. 810. Thus, the air flow through the first deformation element may be As indicated by arrow 860, it is believed that the .

[0069] The re-expansion 850 of the first deformation element 810, see FIG. 8b, also causes the particles 820 to re-expand. They may stretch and return (more or less) to the form and shape they had before they were compressed. The direction of the stress that caused the deformation (i.e., in the case shown here) This re-expansion, which may occur in the vertical direction (see 850), may cause the previously blocked channel to expand. It is believed that the cell may reopen, and the pre-existing cavity may open up and the first transformation may take place. It is considered possible to connect to additional channels through the shape element 810. The channel is referred to herein primarily as following the re-expansion 850 of the first deformation element 810, As shown by arrows 870, the airflow directed through the first deformation element 810 The re-expansion of the first deformation element 810 "sucks" air in more vigorously, resulting in an air flow 8 Further increase 70.

[0070] Returning to the consideration of FIG. 1, the induced airflow discussed above may be, in particular, A first deformation element 110 including randomly arranged particles 120, e.g., eTPU, This is advantageously utilized in combination with the high energy return provided. In the region, the cushioning element 100 with the first deformation element 110, on the other hand, when pushing off on the toe On the other hand, it may also provide high energy return to the wearer's foot when the The reinflation of the first deformation element 110 creates a induced inflow of air into the forefoot region. , which may provide good ventilation and cooling of the foot. The re-expansion of the first deformation element 110 , which further creates a suction effect and draws air into the channel through the first deformation element 110. This may potentially increase the ventilation and cooling of the foot even further. Such efficient cooling gives the wearer's feet more "energy" and generally It can improve sleeve performance, health safety and endurance.

[0071] A similar effect is provided, for example, in the heel region of the cushioning element 100 .

[0072] As a further option, the cushioning element 100 may also be manufactured to be air and / or liquid permeable. To achieve this, one or more predetermined channels (not shown) are created through the first deformation element 110. This can include, for example, increasing the breathability of the cushioning element 100. It may be possible to better balance the thermal insulation properties of a given channel (multiple The number of protrusions (possible) may correspond, for example, to corresponding protrusions or needles in a mold used to manufacture the cushioning element 100. It may be produced by:

[0073] FIG. 2 shows an embodiment of a particle 200 of foam material having an oval cross section. The particle has walls 210 and continuous channels 220. The oval shape of the particle 200 of the foam material As a result, voids 230 appear between the particles. The average size of these voids 230 is As described above, for a given template, the shape of the particles 200 determines the size of the particles 200. It is determined by the maximum achievable packing density. So, for example, it is usually a cube or cube. The cuboidal particles can be packed more densely than the spherical or oval particles 200 . Furthermore, in a deformation element manufactured from randomly arranged particles 200, the randomness of the particles 200 The arrangement of the particles allows air and / or liquid to pass through without the need for alignment of particles. One or more channels will be expressed with a certain statistical likelihood. This reduces the manufacturing effort. Promote widely.

[0074] In the embodiment of particle 200 shown in FIG. 2, channels for passing air and / or liquid are provided. The holes run along the channels 220 inside the particles, along the voids 230 between the particles, and along the particles 20. 0 and the combination of channels 230 therebetween and gaps 220 therebetween. Since there is a possibility, the likelihood of expression of such a channel is determined by the wall 210 and the continuous channel 220. This is further enhanced by the tubular structure of the particle 200 having

[0075] The average size of the voids 220 and the channels through which air and / or liquid pass within the finished deformation element The likelihood of developing a nucleus depends on the pressure at which the particles are packed into the mold used in their manufacture and / or Any heating and / or pressure processes to which the particles may be subjected within the mold and / or The amount of the steaming process depends on the parameters of the steaming process. It is possible for the finished deformation element or cushioning element itself to have a number of different colors. In a particularly advantageous embodiment, the particles 200 are foamed thermoplastic. It is made of liquid thermoplastic urethane and is pigmented with liquid thermoplastic urethane. leads to a very durable coloring of the particles and therefore of the deformation or cushioning elements, respectively. .

[0076] FIG. 3 illustrates a deformation element 310 configured as a midsole according to an embodiment of the present invention. 3 shows a further embodiment of a cushioning element 300 comprising a deforming element 310 of foam material. The first void 330 includes randomly arranged particles 320, whereby the first void 330 is filled with the particles 320. However, in the embodiment shown in FIG. 3, the solidification liquid is present between the voids 330. The solidification liquid 330 may be, for example, the following materials: thermoplastic urethane, ethylene one or more of: vinyl acetate, or other material compatible with the foam material of the particles 320; In addition, in some embodiments, the solidification liquid 330 may include a buffer. As a carrier fluid for filling particles 320 of foam material into a mold used to manufacture element 300. whereby the carrier fluid can be used during the manufacturing process, e.g. in the heating step and / or The mixture is solidified during the pressing and / or steam heating steps. The particles 320 introduced into the mold are continuously immersed in a liquid 330 which gradually solidifies during this process. It is coated.

[0077] According to an embodiment of the present invention, the solidifying liquid improves the stability, elasticity and / or The tensile strength is increased, thus allowing the manufacture of a very thin cushioning element 300. This further reduces the weight of such a cushioning element 300. The thinness of the cushioning element 300 allows it to be worn in areas of sports apparel where excessive thickness can be a significant hindrance to the wearer. areas, e.g. elbows in outdoor sports clothing and / or winter sports clothing or in the knee area, or for shin guards, etc. become.

[0078] The present invention provides a suitable combination of the material of the particles 320 and the solidification liquid 330 in the deformation element 310. The thickness, elasticity, tensile strength, compressibility, weight, etc. can be varied by changing the combination and percentage. The deformation elements 310 can be manufactured with a number of different characteristics.

[0079] FIG. 4 shows a further embodiment according to an aspect of the present invention. Cushioning element 400 is shown constructed of several randomly placed layers of foam material. a deformation element 410 including a particle disposed therein, the first void being located within and / or within the particle; The cushioning element 400 may be a woven reinforcement element and / or a fiber-like reinforcement element. The reinforcement element 420 further comprises a first reinforcement element 420, which is preferably a matrix 420. The reinforcement element 420 comprises: In the selected area, in the embodiment shown in FIG. In one or more aspects of the present invention, According to the present invention, the woven and / or fiber-like reinforcing elements 4 in combination with the deformation elements 410 are 20 to produce a very light cushioning element 400 that still has the required stability. Such an embodiment of the cushioning element 400 can be used in particular in shoe sole structures. In a further embodiment, the reinforcing element 420 may also be It may be a deformation element 420 or another element that enhances stability, such as a decorative element.

[0080] According to a further aspect of the invention, the cushioning element 400 shown in FIG. 4 comprises a membrane-like reinforcement element 430. In a particularly preferred embodiment, this is a membrane comprising thermoplastic urethane. In particular, the deformation element 41 includes randomly arranged particles that include expanded thermoplastic urethane. In combination with 0, the film is extremely durable and resistant, eliminating the need for additional adhesives. Since a chemical bond can be formed between the foam particles, such a membrane 430 does not need to be formed. can be advantageously used, which makes it easier to manufacture such a cushioning element 400. , more cost-effective and more environmentally friendly.

[0081] The use of the membrane-like reinforcing element 430, on the one hand, increases the (shape) stability of the cushioning element 400. On the other hand, the membrane-like reinforcing element 430 is resistant to external influences such as abrasion, moisture, UV light, etc. In a further preferred embodiment, the first reinforcing element 400 is 20 and / or the membrane-like reinforcing element 430, as described above, may be a deformation element according to an embodiment of the present invention. One or more air and / or liquid permeable Air and / or liquid flowing through the channels penetrates the first reinforcement element 420 and / or can pass through at least one opening of the membrane-like reinforcing element 430 in at least one direction. The at least one opening is arranged to allow, for example, At the same time, it takes advantage of the additional reinforcing elements 420, 430 described above, and at the same time, it is resistant to moisture from the outside. This facilitates the manufacture of a breathable cushioning element 400 that provides protection against the In one embodiment, the membrane-like reinforcing element 430 is preferably breathable, but only in one direction. is designed as a liquid-permeable membrane from the foot to the outside, thus preventing moisture from entering the The membrane is designed to prevent moisture from seeping into the shoe from the outside and into the wearer's feet. The permeability ensures breathability.

[0082] FIG. 5 shows a schematic cross-sectional view of a shoe 500 according to another embodiment of the present invention. 00 includes a cushioning element designated as a midsole 505, which cushioning element The deformation element 510 includes randomly arranged particles of foam material, whereby As previously mentioned, the gap may extend through the deformation element 510. It is preferred to develop one or more channels through which air or liquid can pass. In a preferred embodiment, the materials and manufacturing parameters are such that the channels are essentially air as described above. This allows the material to be breathable but at the same time impermeable to liquids. It becomes possible to manufacture a shoe 500 that protects the wearer's foot against external moisture.

[0083] The cushioning element 505 shown in FIG. 5 is a cage element in the embodiment presented. and further comprising a reinforcing element 520 that, for example, surrounds the shoe upper in three dimensions. In order to avoid any negative effects on the breathability of the shoe, the reinforcing element 520 is Air and / or fluid flowing through the channels in the reinforcing member is directed at least in one direction. Flow through at least one opening 530 in element 520, e.g., from the inside to the outside. Preferably, the device further comprises a series of openings 530 arranged so that the Cushioning element 530 preferably includes a series of outer sole elements 540. As such, the external sole element 540 advantageously absorbs moisture and / or water. The shoe 500 further protects the wearer's foot against the effects of the cushioning properties of the sole 505. and / or further increase the contact of the shoe 500 with the ground.

[0084] 6 and 7 show further examples of cushioning elements 600, 700 provided as midsoles. 1 shows an embodiment of a cushioning element 600, 700, each of which occupies a first partial area of ​​the cushioning element 600, 700. The deformation elements 610, 710 each further include a second part of the cushioning element 600, 700. The second deformation element 620, 720 occupies a different area. 620, 720 each include randomly arranged particles of foam material, and the deformation elements 610, 7 There are voids within and / or between the particles of 10, 620, and 720. The forming elements 610, 710, 620, 720 may use particles of the same foam material or different materials. Additionally, the particles may have the same cross-sectional shape or different shapes. The particles may also be packed into a mold (not shown) used to manufacture the cushioning elements 600, 700. Before filling, they may have different sizes, densities, colors, etc. According to one aspect of the present invention, Particles for the first deformation element 610, 710 and the second deformation element 620, 720 The manufacturing parameters are such that the voids of the first deformation element 610 or 710, respectively, are It is selected to exhibit a size that is on average different from the voids of elements 620 or 720 .

[0085] For example, the particles and the manufacturing parameters (e.g., heating and / or pressing steps and and / or the pressure, duration and / or temperature of the steaming process) are the second transformation factors The gaps of 620 or 720, respectively, are on average larger than the gaps of the first deformation element 610 or 710. Therefore, the deformation element, the buffer element, and the like can be selected to be small. For example, it combines properties such as elasticity, breathability, liquid permeability, insulation, density, thickness, and weight. This allows selective influence in individual subregions. In a further preferred embodiment, the cushioning elements each have: includes a number (three or more) of different deformation elements occupying a partial area of ​​the cushioning element, , all deformation elements may have different properties (e.g., size of the voids), and some The deformation elements may have similar characteristics or may contain the same characteristics.

[0086] As an example, randomly arranged particles and manufacturing patterns in the first deformation element 610, 710 may be used. The parameters are the interfacial and / or interfacial properties between randomly arranged particles of the first deformation element 610, 710. First deformation elements 61, the first voids in their interior being primarily permeable to air and / or liquid. 0,710, thus creating good ventilation in this area. It is contemplated that the randomly arranged second deformation elements 620, 720 may be selected as follows. The particles and manufacturing parameters are, on the other hand, randomly arranged in the second deformation element 620, 720. Secondary voids within and / or between the particles trap primarily air therein. It may be chosen to create a cavity and therefore good insulation in this area. Paired situations are also possible.

[0087] Finally, Figs. 9a to 9f show a method for manufacturing a cushioning element according to the invention, comprising an embodiment of a cushioning element 905 according to the invention. 9 shows an embodiment of a shoe 900 according to the present invention.

[0088] FIG. 9a shows the side of the shoe 900, FIG. 9b shows the medial side, and FIG. 9c shows the rear of the shoe 900. 9e and 9f show the cushioning of the shoe 900. A close-up of element 905 is shown.

[0089] The cushioning element 905 includes a first deformation element 910 and has a first gap 930 between the particles 920. The cushioning elements 100, 300, 40 include randomly arranged particles 920 of a foam material. 0, 505, 600, 700, 800 and the first deformation element 110, 310, 410, 5 All the explanations and considerations presented in the previous paragraphs regarding the embodiments 10, 610, 710, and 810 The same observation applies here too.

[0090] Further, the particle surface may be at least partially heated, for example by a steaming process or some other process. The resulting bond allows the particles 930 to dissolve in the shoe 900. It is emphasized again that it must be strong enough not to be "ripped" out.

[0091] The cushioning element further includes a reinforcement element 950 and an outsole layer 960. and outsole layer 960 may or may not form one integral piece. In the embodiment shown, the reinforcement Element 950 provides pronation support in the mid-heel area and a torsion bar in the area of ​​the arch of the foot. The outsole layer 960 is disposed along the rim of the sole and in the forefoot region. It contains several individual subcomponents which are

[0092] Finally, the shoe 900 includes an upper 940 .

[0093] The shoe 900 with the cushioning element 905 has in particular good thermal insulation properties during ground contact and Combined with high ventilation, potentially with directed airflow during other times of the walking cycle This provides high energy return to the wearer's foot and therefore increases the athlete's wearing comfort. May help increase strength, endurance, performance and general health and safety.

[0094] The following further examples are provided to facilitate understanding of the present invention. 1. A cushioning element for sports clothing, comprising: a. a first deformation element including a plurality of randomly arranged particles of a foam material; b. a first void is present within and / or between the particles; buffer element. 2. The foam particles are made of the following materials: foamed ethylene vinyl acetate, foamed thermoplastic urethane Tan, Expanded Polypropylene, Expanded Polyamide, Expanded Polyether Block Amide, Expanded Poly Polyoxymethylene, Expanded polystyrene, Expanded polyethylene, Expanded polyoxyethylene, The cushioning element according to example 1, comprising one or more of the following: . 3. The particles of the foam material have the following cross-sectional shapes: ring-shaped, oval, square, polygonal 3. The cushioning element of any one of the preceding claims, including one or more of the following: circular, rectangular, and star-shaped. 4. The first deformation element is to insert particles of foaming material into the mold, and after insertion into the mold, The particles of the foam material are subjected to a heating process and / or a pressurizing process and / or a steam heating process. and a cushioning element according to one of Examples 1 to 3, which is produced by 5. Before insertion into the mold, the particles are mixed at a concentration of 10 to 150 g / l, preferably 10 to 100 g / l. Buffer element according to example 4, particularly preferably with a density of 10 to 50 g / l. 6. The first deformation element is later removed or a small amount of material is added inside the first gap of the first deformation element. Produced by mixing particles of foamed material with further material which at least partially remains. The cushioning element according to any one of Examples 1 to 5. 7. The cushioning element of example 6, wherein the solidifying liquid is present within the first void of the first deformation element. 8. The first void forms one or more cavities in which air is trapped, according to Examples 1-7. 1. The cushioning element according to claim 1. 9. The first void is one or more voids passing through the first deformation element that are permeable to air and / or liquid. The cushioning element according to any one of Examples 1 to 8, wherein the cushioning element forms a plurality of channels. 10. Reinforcement elements, in particular textile reinforcing elements and / or membrane-like reinforcing elements and / or fibres The cushioning element according to any one of Examples 1 to 9, further comprising a reinforcing element. 11. The softening method according to Example 10, wherein the reinforcing element is provided as a film comprising thermoplastic urethane. opposition element. 12. The reinforcing element is provided with one or more channels in the first deformation element through which air passes and / or or liquid passes in at least one direction through at least one opening in the reinforcing element. Example 9 may be combined with example 10 to include at least one opening arranged to allow 12. The cushioning element according to claim 10 or 11. 13. The first deformation element occupies a first partial area of ​​the cushioning element, and the cushioning element occupies a second deformation element. The cushioning element according to one of Examples 1 to 12, further comprising: 14. The second deformation element includes a plurality of randomly arranged particles of a foam material, A second void is present within and / or between the elementary particles, the second void being a first The cushioning element of Example 13, which is smaller on average than the first gap of the deformation element. 15. The cushioning element is at least part of the sole of the shoe, in particular the midsole. The cushioning element according to any one of Examples 1 to 14, which is provided at least in part. 16. The cushioning element is provided as at least a part of the insole of the shoe, Example 1 to 14. A cushioning element according to claim 1. 17. A shoe comprising at least one cushioning element according to example 15 and / or example 16. . [Explanation of symbols]

[0095] 100, 300, 400, 600, 700, 800, 905 buffer element 110, 310, 410, 510, 610, 620, 710, 720, 810, 910 Transformation elements 120, 200, 820, 320, 920 particles 130, 230, 830, 930 void 330 Voids, solidified liquid 210 Wall 220 continuous channels 420 Woven reinforcing element, fiber-like reinforcing element, first reinforcing element 430 Membrane-like reinforcing element, membrane 500, 900 Shoes 505 Midsole, Cushioning Elements 520, 950 Reinforcement elements 530 Opening 540 External sole elements 850 Re-expansion 860, 870 Airflow 940 Upper 960 Outsole Layer

Claims

1. A cushioning element for sports clothing, comprising: a first deformation element including a plurality of randomly arranged particles of a foam material; a first void formed within the particle and / or between the particles; a second deformation element including a plurality of randomly arranged particles of a foam material; second voids formed within the particles and / or between the particles, the second voids being smaller on average than the first voids; and one or more channels extending through the first deformation element; Including, the plurality of particles form the first void and the second void by at least partially bonding surfaces of the plurality of particles; buffer element.

2. The cushioning element described in claim 1, wherein the particles of the foamed material include one or more cross-sectional shapes of ring-shaped, oval, square, polygonal, circular, rectangular, and star-shaped.

3. A method for manufacturing the cushioning element described in claim 1, wherein the first deformation element is manufactured by inserting the particles of the foamed material into a mold and, after said insertion into the mold, exposing the particles of the foamed material to a heating process and / or a pressurizing process and / or a steaming process.

4. A method for producing a cushioning element as described in claim 3, wherein prior to said insertion into the mold, the particles have a density of 10 to 150 g / l, preferably 10 to 100 g / l, particularly preferably 10 to 50 g / l.

5. A method for manufacturing a cushioning element as described in claim 3 or 4, wherein the first deformation element is manufactured by mixing the particles of the foamed material with further material which is subsequently removed or which remains at least partially inside the first void of the first deformation element.

6. A cushioning element as described in claim 1 or 2, wherein a solidifying liquid is present within the first void of the first deformation element.

7. A cushioning element as described in any one of claims 1, 2 and 6, wherein the first void forms one or more cavities in which air is trapped.

8. A cushioning element as described in any one of claims 1, 2, 6 and 7, wherein the first void forms one or more channels passing through the first deformation element and allowing air and / or liquid to pass therethrough.

9. A cushioning element described in any one of claims 1, 2 and 6 to 8, further comprising a woven reinforcing element and / or a membrane-like reinforcing element and / or a fiber-like reinforcing element.

10. A cushioning element as described in claim 9, wherein the woven reinforcing element and / or the membrane-like reinforcing element and / or the fiber-like reinforcing element are provided as a membrane comprising thermoplastic urethane.

11. A cushioning element as described in claim 9 or 10, combined with claim 8, wherein the woven reinforcement element and / or the membrane-like reinforcement element and / or the fiber-like reinforcement element include at least one opening arranged such that air and / or liquid passing through the one or more channels in the first deformation element can pass in at least one direction through at least one opening of the woven reinforcement element and / or the membrane-like reinforcement element and / or the fiber-like reinforcement element.

12. A cushioning element as described in any one of claims 1, 2, and 6 to 11, wherein the first deformation element occupies a first partial area of ​​the cushioning element, and the cushioning element further includes a second deformation element.

13. A cushioning element as described in any one of claims 1, 2, and 6 to 12, wherein the sports apparel is a shoe comprising a midsole and an insole, and the cushioning element is provided as at least part of the midsole or as at least part of the insole.

14. The sports apparel is a shoe, comprising a cushioning element as described in any one of claims 1, 2, and 6 to 13.

15. A cushioning element as described in any one of claims 1, 2, and 6 to 13, wherein the sports apparel is a shoe including a sole having the first deformation element, and compression and re-expansion of the sole in a direction from the foot to the ground during a gait cycle causes the one or more channels to close and open, thereby directing and controlling air flow in a direction from the ground through the first deformation element to outside the foot or shoe.

16. A cushioning element as described in any one of claims 1, 2, and 6 to 13, wherein the sports clothing is a shoe including a sole having the first deformation element, the first deformation element being positioned in a forefoot region of the sole, the first deformation element re-expanding upon kicking off of the foot and sucking air into the one or more channels upon re-expansion, whereby air is guided to the forefoot region upon re-expansion of the first deformation element.

17. The sports clothing is a shoe comprising a sole having the first deformation element disposed in a forefoot region of the sole, and when the foot is pushed off, the first deformation element provides high energy return to the wearer's foot and re-expands to draw air into the one or more channels, thereby directing air to the foot. A cushioning element as described in any one of claims 1, 2 and 6 to 13.

18. The sports clothing is a shoe, the shoe including a sole having the first deformation element, 14. The cushioning element of any one of claims 1, 2, and 6 to 13, wherein re-expansion of the first deformation element upon foot push-off creates a suction effect that draws air through the first deformation element and into the channel, promoting ventilation and cooling of the foot.

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