Shoe soles

Abstract

To provide an improved sole for a shoe, in particular for a sports shoe.SOLUTION: In one embodiment, a sole for a shoe, in particular for a sports shoe, is provided. The sole comprises a cushioning element that includes randomly arranged particles of an expanded material, and a control element.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to soles for shoes, particularly for sports shoes.

Background Art

[0002] Shoes have many characteristics due to the sole, and their identification can be made prominent to various degrees according to the specific shoe type. Primarily, shoe soles typically have a protective function. Since the sole is more rigid than the shoe shaft, for example, it protects the wearer's foot against injuries caused by sharp objects that the wearer may step on. Furthermore, since the shoe sole is highly wear-resistant, it usually protects the shoe against excessive wear. In addition, the shoe sole can improve the grip of the shoe on the ground respectively, and thus enables the wearer to move faster. Another function of the shoe sole can be to provide a certain degree of stability. Furthermore, the shoe sole can have a buffering effect by absorbing the forces generated while the shoe is in contact with the ground, for example. Finally, the shoe sole can also protect the foot from dirt and splashes of water, and can bring about a plurality of other functions.

[0003] To satisfy such many functions, various materials from which shoe soles can be manufactured are known from the prior art. Exemplarily, shoe soles made of ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), rubber, polypropylene (PP), or polystyrene (PS) are mentioned here. These various materials each provide a particular combination of various characteristics that are more or less suitable for the specific requirements of each type of shoe. For example, TPU is highly abrasion-resistant and difficult to tear. Furthermore, EVA is safe. It is characterized by high qualitative properties and relatively good buffering effect. Furthermore, expanded materials, Specifically, using foamed thermoplastic polyurethane (eTPU) is necessary for the manufacture of shoe soles. It was taken into consideration. Therefore, for example, WO2005 / 066250A1 contains The shoe shaft is attached to the sole, which is based on a foamed thermoplastic polyurethane. The manufacturing method for the shoes is described. Foamed thermoplastic polyurethane is lightweight and elastic It is also characterized by having particularly good cushioning properties.

[0004] It cushions and absorbs the impact energy generated when the foot strikes the ground, i.e., vertically. In addition to cushioning, shear forces during running are also applied horizontally, specifically to the shoes. This also occurs on surfaces with good grip, and therefore, when the foot touches the ground, it moves together with the ground. It is also known from conventional technology that the shoe can suddenly stop in such a situation. If the surface and / or sole cannot absorb it at least partially, shear The force is transmitted to the musculoskeletal system, specifically to the knee, without diminishing. This can lead to excessive strain on the soles and exacerbate injuries. On the other hand, the shear strength of the shoe soles (Shear When r capacity becomes excessive, stability is lost, especially during fast running, and the risk of injury increases. The shear strength increases. The increase in shear strength means that in certain areas of the sole, that area clearly provides more support for the foot. Because it works to stabilize, it can sometimes be undesirable. Furthermore, if the shear strength is, for example, moderate When the toe area of ​​the midfoot rises, the shoe slips while running. This may cause sensations in the wearer, which could reduce the comfort of wearing the garment.

[0005] To solve this problem, some of the shear force generated during running is absorbed by the joints without overusing them. The sole structure that can absorb impact in a different way has evolved from conventional technology, for example, DE10244433B4 It is known from DE10244435B4. However, the disadvantage of these structures is The sole is quite heavy, expensive, and complex to manufacture, consisting of several separate individual parts. It is what has been accomplished.

[0006] Furthermore, U.S. Patent Application Publication No. 2005 / 0150132(A1) describes the normal use of The beads can shift due to the pressure on the insole from the user's feet. Footwear (such as shoes, sandals, and boots) constructed by filling the insole with these beads. It is disclosed. U.S. Patent No. 7,673,397(B2) describes plates and recesses. A footwear having a support assembly formed therein is disclosed. U.S. Patent No. 8,0 No. 82,684(B2) has at least one separating track between the areas of the sole unit It has a cleavage that allows it to separate those areas in response to the force caused by the contact between the foot and the ground. A sole unit for shoes has been disclosed. DE102011108744 A1 discloses a method for manufacturing a sole or a part of a sole for shoes. WO2 007 / 082838A1 discloses a foam based on thermoplastic polyurethane. U.S. Patent Application Publication No. 2011 / 0047720(A1) describes a sole for footwear. A method for manufacturing the assembly is disclosed. Finally, WO2006 / 015440A1 A method for forming a composite material is disclosed.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Patent Document 6

Patent Document 7

Patent Document 8

Patent Document 9

Patent Document 10

Summary of the Invention

Problems to be Solved by the Invention

[0008] Therefore, starting from the prior art, an object of the present invention is to provide a better sole for shoes, particularly for sports shoes.< / Another object is to provide an improved possibility to selectively affect the shear strength of the shoe sole in a specific area of the sole.< /

Means for Solving the Problems

[0009] ​According to a first aspect of the present invention, these problems are solved by randomly arranging foaming material particles The problem is solved by a sole for shoes, especially sports shoes, that includes a cushioning element. The sole also features control elements that do not use foaming material, and these control elements Compared to the shear motion in the second region of the buffer element, the shear motion in the first region of the buffer element This is reduced.

[0010] Using cushioning elements containing foamed materials is particularly advantageous in the construction of shoe soles. This is because the material is very lightweight, but at the same time, it absorbs the impact energy when the foot steps on the ground. This is because it can absorb energy and return it to the runner. As a result, the running effect The rate is improved, and the (vertical) impact load on the musculoskeletal system is reduced. Another advantage is that random distribution This is achieved by using placed foam material particles. Manufacturing becomes very easy because the particles are particularly easy to handle, and their randomness This is because the arrangement eliminates the need to adjust the orientation during manufacturing.

[0011] By using a control element that allows for selective control of the shear strength of the buffer element, further, If not the arm, it would absorb horizontal shear forces that would have a direct impact on the musculoskeletal system, especially the joints. And / or it becomes possible to build a sole that can also cushion. This improves the comfort of wearing the shoes and the efficiency of the runner, while simultaneously reducing injury and joint problems. To prevent wear. Since foam material is preferably not used in the control element, the control It has sufficient strength to perform its function.

[0012] In a preferred embodiment, the particles of the foaming material are foamed ethylene vinyl acetate (eEVA), Foamed thermoplastic polyurethane (eTPU), foamed polypropylene (ePP), foamed polyamide (e PA), expanded polyether block amide (ePEBA), expanded polyoxymethylene (e POM, expanded polystyrene (PS), expanded polyethylene (ePE), expanded polyoxyl One of the following: ethylene (ePOE), foamed ethylene propylene diene monomer (eEPDM) Includes one or more. According to the sole requirements profile, one or more of those materials Multiple materials can be used in the manufacture of soles due to their unique properties.

[0013] In another preferred embodiment, the control element is made of rubber, non-foamed thermoplastic polyurethane, or textile. One or more of tile materials, PEBA, and foil and foil-like materials. Includes numbers.

[0014] In another preferred embodiment, the inherent shear resistance of the first region of the buffer element is the buffer element It is higher than the second region. It locally affects the shear strength of the buffer element, in combination with the control element. By using these buffer elements, which have a combined range of various inherent shear resistance forces, This increases the degree of freedom in sole construction, leading to a wider range of possible adaptations.

[0015] In one embodiment, the control element influences the shear motion of the buffer element in the second region. The first region has more influence on the shear motion of the buffer element than the second control region. In the control region, the thickness is large and / or the number of holes is small. Based on the size and other factors, for example, the bending resistance and deformation resistance of the control element can be determined. This is possible. The characteristics of the control elements are, in part, the shear strength of the buffer elements in various regions and This can affect the bending capacity.

[0016] In a preferred embodiment, the cushioning element is provided as a component of the midsole. In a more accurate embodiment, the control element is provided as part of the outsole.

[0017] The cushioning element is part of the midsole and / or the control element is part of the outsole. By constructing it as a component, the number of various functional components of the sole and shoe is minimized. This allows for minimizing the impact and simultaneously improves the ability to adapt and control the sole characteristics. This allows for, for example, a simpler shoe structure and a significant reduction in weight. It is possible to do so. Furthermore, adhesives can be used to bond the sole and various elements of the shoe together. No additional composite materials are needed. Therefore, shoe manufacturing ultimately involves improving functionality. As it improves, cost efficiency also improves, and furthermore, preferably, materials of a common material class Since it is used, the possibility of recycling is improved.

[0018] In another embodiment, the outsole directly engages with the second region of the cushioning element of the midsole. It has a decoupling region that is not attached. Further details are provided below. Therefore, this further affects and / or improves the shear strength of the sole. This makes it possible to do so. For example, a control provided as part of the outsole The elements are bonded to a cushioning element provided as part of the midsole using gel or similar material. This is possible. The gel allows for another shear action between the control element and the buffer element. Therefore, it becomes possible to absorb higher shear forces.

[0019] According to another aspect of the present invention, the control element and the buffer element are made from a common material class of material. Specifically, it can be manufactured from thermoplastic polyurethane. This allows for the production of soles and... It is possible to simplify the manufacturing of the tubes. Specifically, materials from a common material class Materials can often combine with each other, and are significantly easier to combine than materials from different classes. It can be processed into this.

[0020] According to another aspect of the present invention, the first region is located in the medial region of the midfoot, and the second region is It is located in the outer region of the heel. The shear force generated during running is particularly strong when the foot is in contact with the ground. It sometimes occurs. This typically happens in the outer region of the heel. For this reason, shear Therefore, good shear strength of the sole that absorbs force is desirable. However, in the medial region of the foot, Improved support and stability are often desired. This allows the foot to make better contact with the ground. It becomes possible to push and release, and furthermore, pronation of the foot can lead to inflammation and injury. This can prevent it.

[0021] According to another aspect of the present invention, the control element further controls the bending resistance of the buffer element in the first region. To increase the second area. Specifically, the control designed as part of the outsole. Your elements can provide these functions.

[0022] According to another aspect of the present invention, the sole is made of foam that surrounds at least a portion of the cushioning element. It further comprises a frame made from a different material, specifically ethylene vinyl acetate. This frame, for example, allows for further control of shear strength and sole stability. It can also be used to improve sexual performance.

[0023] In a preferred embodiment, the cushioning element causes the lower sole surface to be 1 in relation to the upper sole surface. Longitudinal shear motion of more than mm, preferably more than 1.5 mm, and particularly preferably more than 2 mm is possible. These values ​​result in sufficient stability and high absorption capacity of the shoe sole against horizontal shear forces. The balance between force and power becomes better.

[0024] Preferably, the control element is laser-cut from a blank. For example, the control element is cut from a blank. To be provided in the form of an outsole or a part of an outsole, laser-cut from the link. It is possible.

[0025] In its simplest form, the blank is, for example, the control element / outsole mentioned above. It can be provided as a layer of material containing one or more materials suitable for manufacturing. For example, blanks with predetermined holes, raised areas, etc., are provided in various sizes and thicknesses. It is also possible to have a general outline of the foot or sole.

[0026] Laser cutting of control elements allows for greater design flexibility in those elements. We can also offer opportunities for individual customization of the elements, soles, and shoes. For example, it allows for numerous fashion designs and personalization of each sole or shoe. It is also possible to customize things that are specific to sports, or that reflect typical customer behavior. This could also be due to customer-related activities. Furthermore, laser cutting is largely automated. This can be done, for example, by basing it on online tools or other management methods. Cut.

[0027] However, the customization characteristics and online management mentioned above are not explained in this specification. Used in conjunction with other embodiments of the sole and shoe of the present invention that may be revealed or conceivable. However, the control element does not necessarily have to be laser-cut from a blank.

[0028] Another aspect of the present invention comprises a sole as described in one or more of the embodiments of the present invention. This relates to shoes, particularly sports shoes. Herein, each of the embodiments of the present invention mentioned... The configurations are combined in a mutually advantageous manner according to the requirements profile of the sole and the shoe. It is possible to do so. Furthermore, if it is not relevant to the purpose of each shoe, a single aspect can be used separately. It is possible to do so.

[0029] The following detailed description describes the currently preferred implementation forms and embodiments of the sole according to the present invention. A good example will be explained with reference to the following diagram. [Brief explanation of the drawing]

[0030] [Figure 1] This is an embodiment of a shoe sole having a midsole and an outsole that selectively affects the shear strength and bending strength of the midsole. The sole further comprises a reinforcing element partially embedded in the midsole and a heel clip. [Figure 2] Figures 3 to 9 show shoes with various soles used in the measurements. [Figure 3a] This shows a comparison of the vertical compression of an eTPU midsole and an EVA midsole when the foot is in contact with the ground. [Figure 3b] This shows a comparison of the vertical compression of an eTPU midsole and an EVA midsole when the foot is in contact with the ground. [Figure 4] This shows the vertical compression measurements of the eTPU and EVA midsoles throughout the entire step cycle. [Figure 5a] This shows a comparison of local material stretching in the outer sidewalls of eTPU midsoles and EVA soles during the rolling motion of the foot from the heel region to the forefoot region during a step. [Figure 5b] This shows a comparison of local material stretching in the outer sidewalls of eTPU midsoles and EVA soles during the rolling motion of the foot from the heel region to the forefoot region during a step. [Figure 6a] Figures 7a-7c show the relative displacement measurements of two measurement points at opposite ends of the measurement sections during a complete step cycle for three different soles. [Figure 6b] Figures 7a-7c show the relative displacement measurements of two measurement points at opposite ends of the measurement sections during a complete step cycle for three different soles. [Figure 6c] Figures 7a-7c show the relative displacement measurements of two measurement points at opposite ends of the measurement sections during a complete step cycle for three different soles. [Figure 7a] The measurement points used in Figures 6a to 6c are located at the ends of the measurement sections shown in Figures 7a to 7c. [Figure 7b] The measurement points used in Figures 6a to 6c are located at the ends of the measurement sections shown in Figures 7a to 7c. [Figure 7c] The measurement points used in Figures 6a to 6c are located at the ends of the measurement sections shown in Figures 7a to 7c. [Figure 8] This shows a comparison of the horizontal shear forces applied to three different midsole materials when the outer heel area contacts the ground. [Figure 9] This shows the measured shear force in the heel region of various midsole sole materials in the longitudinal direction (AP direction) throughout the entire step cycle. [Figure 10a]This shows another measurement of shear action in the heel region of various midsole sole materials in the longitudinal (AP direction) and medial (ML direction) directions throughout the entire step cycle. [Figure 10b] This shows another measurement of shear action in the heel region of various midsole sole materials in the longitudinal (AP direction) and medial (ML direction) directions throughout the entire step cycle. [Figure 10c] This shows another measurement of shear action in the heel region of various midsole sole materials in the longitudinal (AP direction) and medial (ML direction) directions throughout the entire step cycle. [Figure 10d] This shows another measurement of shear action in the heel region of various midsole sole materials in the longitudinal (AP direction) and medial (ML direction) directions throughout the entire step cycle. [Figure 11] This shows the average of several measurements of shear action in the heel region of different midsole sole materials in the longitudinal direction (AP direction) throughout the entire step cycle. [Figure 12] This shows the average of several measurements of shear action in the heel region of different midsole sole materials in the medial-lateral direction (ML direction) throughout the entire step cycle. [Figure 13a] This shows the shearing action of the sole of the foot on various midsole materials when the foot pushes off the ground at the end of a step in the forefoot region (see Figure 13e). [Figure 13b] This shows the shearing action of the sole of the foot on various midsole materials when the foot pushes off the ground at the end of a step in the forefoot region (see Figure 13e). [Figure 13c] This shows the shearing action of the sole of the foot on various midsole materials when the foot pushes off the ground at the end of a step in the forefoot region (see Figure 13e). [Figure 13d]This shows the shearing action of the sole of the foot on various midsole materials when the foot pushes off the ground at the end of a step in the forefoot region (see Figure 13e). [Figure 13e] This shows the shearing action of the sole of the foot on various midsole materials when the foot pushes off the ground at the end of a step in the forefoot region (see Figure 13e). [Figure 14a-b] A preferred embodiment of a shoe having a sole according to one aspect of the present invention is shown. [Figure 14c] A preferred embodiment of a shoe having a sole according to one aspect of the present invention is shown. [Figure 15a-b] Another preferred embodiment of a shoe having a sole according to one aspect of the present invention is shown. [Figure 15c] Another preferred embodiment of a shoe having a sole according to one aspect of the present invention is shown. [Figure 16] A preferred embodiment of a shoe sole is shown, having a midsole and an outsole that selectively affects the shear strength and bending strength of the midsole. [Figure 17] A particularly preferred embodiment of a shoe sole is shown, having a midsole and an outsole that selectively affects the shear strength and bending strength of the midsole. [Figure 18] This is a schematic diagram of a possible embodiment of an outsole that selectively affects the shear strength and bending strength of the midsole. [Figure 19] This is a schematic cross-sectional view in the ML direction through two embodiments of a midsole having first and second plate elements that can slide relative to each other. [Figure 20] This is a schematic cross-sectional view in the ML direction through two embodiments of a midsole having first and second plate elements that can slide relative to each other. [Figure 21a-b] An embodiment of a shoe according to the present invention is shown, having an embodiment of the sole according to the present invention equipped with a control element laser-cut from a blank. [Figure 22a]Another currently preferred embodiment of a shoe according to the present invention having an embodiment of the shoe sole according to the present invention is shown. [Figure 22b] Another currently preferred embodiment of a shoe according to the present invention having an embodiment of the shoe sole according to the present invention is shown. [Figure 22c] Another currently preferred embodiment of a shoe according to the present invention having an embodiment of the shoe sole according to the present invention is shown. [Figure 22d] Another currently preferred embodiment of a shoe according to the present invention having an embodiment of the shoe sole according to the present invention is shown. [Modes for carrying out the invention]

[0031] The following detailed description describes a currently preferred embodiment of the present invention related to sports shoes. This describes the state. However, it is important to emphasize that the present invention is not limited to those embodiments. The present invention applies to, for example, safety shoes, casual shoes, trekking shoes, golf shoes. It can also be used for shoes, winter shoes, or other shoes, and similarly It can also be used for padding in protective clothing, sportswear, and sports equipment. ru.

[0032] Figure 1 shows a sole 100 according to one aspect of the present invention. The sole 100 is arranged randomly. A buffer element 110 containing particles of foamed material, and a component that selectively affects the shear strength of the buffer element. It includes a boss control element 130.

[0033] In a preferred embodiment, the cushioning element 110 is a midsole or midsole, as shown in Figure 1. Each cushioning element 110 is provided as part of the sole. The cushioning elements 110 are arranged randomly. It contains particles of foamed material. In one embodiment, the entire buffer element 110 is made of foamed material. However, here, various foaming materials, or mixtures of several different foaming materials, are used as buffers. It can be used in various subregions of element 110. In another embodiment, buffer element 110 Only one or more partial regions of the buffer element 110 consist of foamed material, and the rest of the buffer element 110 is not foamed. It consists of a material. For example, the buffer element 110 is made of one or more foamed material particles. It may include a region, and the central region is made of foam to enhance the stability of the sole's shape. It is surrounded by a frame made of foamed material. Suitable foamed and / or non-foamed materials. By combining these elements, a buffer element 110 having the desired buffering and stabilizing properties can be manufactured. It is possible.

[0034] The particles of the foaming material may specifically contain one or more of the following materials: Materials: Expanded ethylene vinyl acetate (eEVA), expanded thermoplastic polyurethane (eTPU), expanded poly Repropylene (ePP), expanded polyamide (ePA), expanded polyether block amide (ePEBA), expanded polyoxymethylene (ePOM), expanded polystyrene (PS), Foamed polyethylene (ePE), expanded polyoxyethylene (ePOE), expanded ethylene propyl Rangeene monomers (eEPDM). Each of these materials has specific characteristic properties. Furthermore, these characteristics are used in the manufacturing of shoe soles according to the profile of the requirements for the sole. It can be used conveniently for this purpose. Specifically, eTPU has excellent cushioning properties, This remains true at both low and high temperatures. Furthermore, eTPU is highly elastic, and during compression, For example, when you step on the ground, almost all of the energy stored is released, and then your foot expands during that time. Return to the original state. On the other hand, EVA is characterized by, for example, high strength, and therefore, for example, loose To enhance the stability of the shape of the impact element 110, the foam material area or the entire cushioning element 110 It is suitable for constructing surrounding frames.

[0035] When various materials or mixtures of different materials are used in the manufacture of the buffer element 110, It is possible to further provide buffer elements 110, each having regions with their own unique shear resistance. This will result in the control element 130, as described herein, being the shoe sole. The degree of design freedom was significantly increased during the construction of the 100, thereby enabling the shoe sole 100 This significantly increases the likelihood of selectively influencing shear behavior.

[0036] In a preferred embodiment, the control element 130 is as an outsole, as shown in Figure 1. Alternatively, it is provided as part of the outsole. The control element 130 is, in this specification, preferably This includes rubber, non-foamed thermoplastic polyurethane, textile materials, PEBA, and foam. The material comprises one or more of the il or foil-like materials. In a particularly advantageous embodiment, The impact element 110 and the control element 130 are made from a common material class, specifically from a material with a foaming thermal It is manufactured from plastic urethane and / or non-foamed thermoplastic urethane. For example, without using adhesive, a buffer can be made as a single, integrated piece in a single mold. Since elements 110 and control elements 130 can be provided, the manufacturing process is significantly simpler. It will be transformed.

[0037] In order to selectively influence the shear behavior of the buffer element 110, the control element is configured in various ways. Several protrusions 132 of varying hardness and expansion, and protrusions of various lengths, thicknesses, and structures. It has a section or raised section 135 and openings and recesses 138 of various diameters. By changing the possibility of the calculation, the buffer element 110 is affected by the control element 130. The influence on shear behavior can be selectively controlled.

[0038] Figures 16a and 16b show, for example, Embodiment 1 of the shoe sole 1610 according to the present invention. It shows 600. The sole 1610 is a cushioning element 1630 provided as a midsole. The system includes foam material particles 1635 arranged randomly. Figure 16a shows the unloaded state. Figure 16b shows the state under load after 1650° of contact with the ground. Sole 1 The 610 further features a control element 1620 provided as an outsole, and several protrusions It comprises a riser 1622 and several recesses / recesses 1628. Here, control element 162 The material for 0 is preferably stronger / more rigid than the material for the midsole 1630. The control element 1620 is a foil on which projections 1622 can be selectively applied. It can be provided as follows. For example, the control element 1620 can be made of TPU foil. Furthermore, a protrusion 1622, also made from TPU, can be attached on top of it. In a suitable embodiment, the foil and protrusions are chemically bonded without the use of additional binders, for example. It can be combined and has the advantage of being extremely stable and resistant. In other embodiments, control is required The base ingredients include other / additional materials.

[0039] As shown in Figure 16b, the material of the control element 1620 is preferably as already mentioned. Because the material of the sole 1630 is more rigid / strong, the protrusion 1622 makes contact with the ground 16 After 50, it is pressed into the midsole material 1630. As a result, area 1660 The 1670 is formed so that the material of the midsole 1630 is compressed to varying degrees. ru.

[0040] Specifically, area 1 where the protrusion 1622 is subjected to load and pressed into the midsole 1630 The 670 midsole material has a control element in area 1660 with recesses / indentations 1628. Furthermore, it is compressed to a high degree. The various compressions of the midsole material that result from this are corresponding The stretching capacity of the midsole material in areas 1660 and 1670. ) and / or selectively affect shear strength. For example, the elongation of the midsole material. The capacity is smaller in the further compressed region 1670 compared to the smaller compressed region 1660. Furthermore, as a result, the midsole 1630 in the outsole 1620 It becomes fixed in place, and therefore leads to increased grip on the ground.

[0041] Therefore, the tensile capacity and / or shear strength of the midsole 1630 is determined by various factors. Various designs of the control element 1620 having start 1622 allow selection in individual subdomains. It can be selectively promoted or inhibited.

[0042] The projection 1622 can be of various designs. For example, the projection 1622 is pointed. It can be a cone, pyramidal, cylindrical, or hemispherical shape. The control element 1620 can be made wave-shaped, etc. The projection 1622 is here Therefore, it acts as a kind of fixed point, and that fixed point is the target of localized compression of the midsole material. This makes it possible. Here, widening the spacing between the protrusions 1622 makes it possible to narrow the spacing between the protrusions 1622. This allows for greater stretching of the midsole material compared to the previous method. This also allows for selective influence on the shear strength of the midsole 1630.

[0043] Figure 17 shows a particularly preferred embodiment 1700 of the sole 1710 according to the present invention. The sole 1710 is equipped with a cushioning element 1730 as a midsole, providing load-free support. The sole 1710 further contains foam material particles 1735 randomly arranged in the state. The outsole is provided with a control element 1720, the control element having several protrusions It has 1722 and several recesses / recesses 1728. The material of the control element 1720 is In this case, preferably, the material has higher strength / rigidity than the material of the midsole 1730. As shown in Figure 17. The symmetrical wave-like design of the control element, on the other hand, as explained above, under load, This makes it possible to fix the midsole 1730 to the tosole 1720 particularly well. Therefore, the grip on the ground becomes particularly good. Furthermore, the control elements designed in this way The 1720 can be introduced into the mold used for manufacturing without any problems during the manufacturing process. ru.

[0044] Figure 18 shows the control elements 1800a, 1800b, 1800c, and 180 according to the present invention. Another embodiment of 0d is schematically shown, preferably as an outsole or part thereof. Embodiments 1800a, 1800b, 1800c, and 1800d provided as such are Several protrusions 1810 and, for example, recesses and / or that can connect two protrusions to each other. It is equipped with a reinforcing projection 1820. Here, the projection 1810 is as already discussed above. They can have several different shapes, sizes, heights, etc. The same applies to indentations. Applied to the and / or reinforcing projection 1820. Selectively affects the characteristics of the sole. For example, their width / thickness and / or depth / height and control element 1800a Their positions and orientations on 1800b, 1800c, and 1800d, respectively The sole can be adapted according to these requirements. Here, recesses and / or reinforcements are made. The protruding portion 1820 does not necessarily have to be positioned between the two projections 1810, but in the present invention Therefore, we explicitly emphasize here that it should act as an independent possibility to design the control elements. Please check. Specifically, these reinforcing protrusions are located in the medial metatarsal region (see 1455). This improves the stability of the sole in that area and increases the shear strength of the midsole material in that region. It can also be conveniently used to reduce elongation capacity.

[0045] In addition, according to another aspect of the present invention, the control element may be an additional functional element, for example, It comprises a shim element and / or reinforcing element as a component, and one part is integrated with it It can be manufactured as a piece.

[0046] Furthermore, the control element can be provided as a complete outsole. However, another implementation In terms of form, the outsole consists of several individual independent control elements that can also be connected to one another. Possessing the necessary qualities.

[0047] In a preferred embodiment, the first region, which has lower shear strength compared to the second region, is located within the midfoot. The first region is located in the lateral region, and the second region is located in the lateral region of the heel. In a particularly preferred embodiment, Specifically, the control element 130 has a stabilizing protrusion 135 on the medial edge of the midfoot region. It has several openings that become larger in diameter towards the heel and toe. The shear behavior of the cushioning element 110, which is adjusted accordingly, conveniently minimizes the risk of injury. Along with supporting the natural physiological processes of the runner's musculoskeletal system, the runner's wearing To improve comfort and efficiency.

[0048] In addition to influencing the shear behavior of the buffer element 110, the control element also affects the curvature of the buffer element. It can also affect the resistance force. For example, in a region where control element 130 is present, buffer element 1 If securely attached to 30, the bending resistance of the control element 130 is equal to that of the buffer element. This affects the bending resistance force 110. The bending resistance force of the control element 130 is, in part, For example, it depends on the design options for the control element 130 mentioned above. Therefore, Figure 1 In the preferred embodiment shown, the bending resistance of the heel and toe regions is due to the reinforcing raised portion 1 It is lower than the midfoot area which is stabilized by 35.

[0049] In another preferred embodiment, the sole 100 further comprises a separation region 160. In this embodiment, the buffer element 110 and the control element 130 are not directly connected to each other. In that region, there is absolutely no connection between the buffer element 110 and the control element 130. In this embodiment, the buffer element 110 and the control element 130 are made of a material having shear strength. They are bonded in that region. In a particularly preferred embodiment, the material having shear strength For example, it may include one or more of the following materials: eTPU, foam material, This causes the buffer element 110 to undergo further shearing motion relative to the control element 130. This makes it possible to further influence the shear behavior of the sole 100. This occurs. These separation regions 160 are preferably located in the outer heel region. This is because, in that region, the strongest running occurs, as will be shown in more detail below. This is because it creates a break in force.

[0050] Figure 19 shows the book described herein, which includes randomly arranged foaming material particles 1910. The midsole 190 according to the present invention can be conveniently combined with other aspects of the invention. Figure 19 shows a cross-sectional view in the inward and outward directions through the embodiment of 0. In the embodiment shown in Figure 19, the midsole The entire 1900 is made of foam material. However, this is simply the midsole 190 according to the present invention It will be apparent to those skilled in the art that this is a specific example of 0, and in other embodiments the midsole 19 Only one or more partial regions of 00 may contain the foam material particles 1910. The sole further consists of a first plate element 1920 and a second that can slide against each other. It comprises plate element 1930. Plate elements 1920 and 1930 are in several directions A design that allows for sliding movement is particularly preferred. In a preferred embodiment, two plate elements 19 20 and 1930 are made of the material of the midsole 1900, and are particularly preferably the midsole The foam material 1910 of the 1900 is completely surrounded. However, in other embodiments The plate elements 1920 and 1930 are made of the same material as the midsole 1900. It is surrounded only by the target.

[0051] Preferably, the two plate elements 1920 and 1930 are arranged relative to each other, as shown in Figure 19. It is positioned in the heel area of ​​the midsole 1900 so that it is positioned in the exact opposite direction. Morphologically, a lubricant or gel is present between the two plate elements 1920 and 1930. This cancels out the wear of plate elements 1920 and 1930 caused by sliding movement. This makes sliding easier.

[0052] By the sliding movement of the two plate elements 1920 and 1930, such a configuration is, for example Furthermore, it absorbs the horizontal shear force acting on the wearer's musculoskeletal system when the wearer steps on the ground. Or it can be reduced. Specifically, when the wearer is running / walking fast Sometimes, it prevents joint wear and injury to the wearer. In other embodiments, the illustrated configuration is To further support the rolling motion of the foot during steps, for example, the midsole 1 It can also be placed in 900 different areas.

[0053] In another embodiment (not shown), the two plate elements 1920 and 1930 are each Furthermore, it is equipped with curved sliding surfaces. In a preferred embodiment, the curvature of the two sliding surfaces is The two sliding surfaces are selected so that they fit together clearly. The degree and orientation of curvature are appropriately chosen. By selecting, for example when stepping on the ground, preferably the second plate element 1930 It is possible to influence the direction in which the sliding movement of the first plate element 1920 occurs relative to the first plate element 1920. This is because, as expected, the impact is absorbed by the midsole or by the wearer. It affects the transmitted shear force.

[0054] One or more embodiments of the present invention described herein that can slide against each other and belong to the present invention Another preferred embodiment of these plate elements that can be conveniently combined is D It should be present in E10244433B4 and DE10244435B4.

[0055] Regarding the function I just described, the material of the Midsole 1900 has resilience. It is even more advantageous if the sliding movement of the two plate elements 1920 and 1930 is canceled out. Preferably, such restoring force is achieved when the two plate elements 1920 and 1930 are interposed. The material of the sole 1900 is, specifically, the foam material 1910 of the midsole 1900. Surrounded by, the midsole 1900 material has two play in the direction of sliding movement In the regions adjacent to plate elements 1920 and 1930, the first plate element 19 This is due to compression caused by the movement of the 20 and second plate elements 1930. Specifically, this effect is due to the elastic properties of the foam material 1910 in the midsole 1900. Without requiring a complex mechanism, the first plate element 1920 and the second plate... A restoring force is generated that counteracts the sliding movement of element 1930.

[0056] Figure 20 shows a midsole 2000 containing randomly placed foam material particles 2010. Regarding this, the following shows a cross-sectional view in the internal and external directions of a modified form of the embodiment discussed here. The frame comprises a plate element 2020 and a second curved element 2030. Elements 2020 and 2030 can slide against each other. Second element 20 The design of the 30 warp shapes predetermined the preferred direction of this sliding movement. However, In a preferred embodiment, between the first element 2020 and the second curved element 2030 There is a gap 2040, and through this gap 2040, the two elements 2030 and 2040 are connected to each other. It also becomes possible for it to slide slightly relative to the gap, which is not in the desirable direction mentioned above. By adapting the 2030 size, the range of such sliding movement that is not in the desired direction can be reduced. The enclosure can be individually adapted to the needs and requirements of the sole. Due to the void 2040, the two elements 2020 and 2030 are almost exclusively preferred. This allows for sliding movement in one direction, thereby improving the stability of the sole. Yes, it is possible. However, if the gap 2040 is large, significant sliding movement will be promoted in undesirable directions as well. This allows the sole to better absorb horizontal shear forces when in contact with the ground, for example. It becomes possible to absorb it in a favorable way.

[0057] In the preferred embodiment shown in Figure 1, the buffer element 110 further includes element 120, for example. The rafter element or reinforcing element is at least partially surrounded. In a preferred embodiment, Element 120 has a higher deformation stiffness than the foam material of the buffer element 110. Therefore, that element 120 works to further influence the elastic and shear properties of sole 100. This is possible. In another embodiment, element 120, for example, an element that acts as an optical design. , and / or elements that accept electronic components, and / or electronic components or any other It can also be a functional element. Element 120 can accept other elements, such as electronic components. If it works in such a way, it preferably has a hollow region that can be accessed from the outside. (See Figure 1) In the embodiment shown, such cavities may be located, for example, in the region of recess 140. In a suitable embodiment, element 120 is bonded to buffer element 110, for example, by adhesive bonding. It is not. Specifically, in a preferred embodiment, the element is the foamed material of the buffer material 110. It does not have a connection to the element. Since the buffer element 110 partially surrounds the element, element 120 Such joints are not needed to secure it. Therefore, when manufacturing shoes, For this reason, non-adhesive materials can also be used. In another embodiment, element 120 is, for example Alternatively, the control element 130 can be connected / bonded to individual regions by bonding, for example, adhesive bonding. It can be provided as a single, integrated piece.

[0058] In the embodiment shown in Figure 1, the sole 100 further includes a heel clip 150. More precisely, the heel clip 150 has an outer finger section and an inner finger section, and The toe sections are independent of each other and surround the outer and inner sides of the heel. This allows for, At the same time, without excessively restricting the space for foot movement, the foot can move well on the sole 100. This makes it possible to fix it in place. In another preferred embodiment, the heel clip 150 further , it has a recess in the Achilles tendon area. This is particularly the upper edge of the heel clip 150 This prevents friction or chafing against the Achilles tendon in the area above the heel. In the configuration, the heel clip 150 is further connected to the control element 130 and / or element 120. They can be joined together, for example, with a binder, or as a single, integrated piece. It can also be set up together with it.

[0059] Figure 2 shows the various materials used to determine the elasticity and measure the shear properties of the sole. The four different shoes are shown in 200, 220, 240, and 260. The key measurement results are summarized in Figures 3-9 below.

[0060] Shoes 200 include, for example, DE10244433B4 and DE10244435B As described in section 4, the upper 205 and the shoe sole 210 and sliding elements These are shoes with a 212.

[0061] The shoe 220 features an upper 225 and an eTPU midsole 230. The midsole 230 is surrounded by an EVA frame. EVA is, for example, Density 0.2g / cm 3 Asker C hardness 55 compression molded 020 55C CMEVA It is possible.

[0062] The shoe 240 features an upper 245 and an EVA midsole 250.

[0063] Furthermore, the shoe 260 combines the upper of the 265 with the eTPU midsole of the 270. Prepare.

[0064] Figures 3a, 3b, and 4 show eTPU (shoe 260) and EVA (shoe This shows the vertical compression (i.e., from the foot to the ground) of the sole of the 240.

[0065] Regarding the measurement of these and other discussed properties of various materials and sole designs, each measurement Each step cycle consists of numerous (over 100) steps called "stages". ) I took pictures. I numbered them sequentially starting from 1. Therefore, for each measurement, There is a one-to-one correspondence between the shadow number or "stage" and the shooting time within each step. However, if there is a certain time offset between different measurements with respect to individual stages There are stages with the same number due to various measurements, and therefore, the same number does not necessarily correspond to each measurement. Please note that this does not necessarily correspond to the same point in time within a step that is measured at a constant rate.

[0066] Photographs 300a and 300b in Figures 3a and 3b show the heel while in contact with the ground. The images were taken. Figures 3a and 3b show the midsole in a state without load on the sole. This shows the compression of the sole area in percentage. As expected, the forefoot is in contact with the ground while the heel is in contact with the ground. Compression does not occur in the lower region (see 320a, 320b). However, it is noticeable in the heel region. The compression is evident in the eTPU sole (see 310a). Therefore, to measure them According to this, eTPU yields much more severely than EVA under vertical load. Therefore, the energy accumulated during compression of the eTPU sole is essentially transferred to the runner during steps. Return to the previous step. This significantly improves running efficiency.

[0067] This can also be seen in Figure 4. The horizontal axis shows the stage number, i.e., the time. The vertical axis shows the vertical compression of the midsole. eTPU sole 2 The measurement value of 410 for 70 is shown similarly to the measurement value of 420 for the EVA sole 250. When the vertical load is at its maximum, the EVA midsole 250 only compresses by about 1.3 mm. Although it cannot be pushed down completely, the eTPU midsole 270 can be pushed down by approximately 4.3mm. This is possible. Roughly speaking, the vertical compression ratio for eTPU is 2:1 to 3 compared to EVA. : is 1, and in some embodiments it is even greater than this.

[0068] Figures 5a and 5b show the moment the heel touches the ground, and the eTPU midsole 2 Within the outer sidewall of 70 (measurement 500a) and EVA midsole 250 (measurement 500b) This shows the localized elongation of the midsole material compared to a state without load on the sole. In addition to showing the elongation of the material as a percentage compared to a state without sole load, Figure 5a The photograph in Figure 5b also shows the direction of material elongation in the form of the elongation vector. From these photographs In the eTPU midsole 270, the material elongation was significantly greater than in the EVA midsole 250. It can be understood that the shear strength of eTPU is greater than that of EVA. Because it is good. Therefore, eTPU is a cushioning material that absorbs shear forces during running. It is particularly suitable for manufacturing the material. In the embodiment discussed here, the stretching of the material in the case of eTPU The elongation is 2-3 times greater than that of EVA. More precisely, the elongation of eTPU material is on average The elongation is 6-7%, with a maximum elongation of 8-9%, and the average elongation of EVA material is 2%. This represents an increase, with the maximum increase being 3-4%.

[0069] Furthermore, measurements revealed that the eTPU midsole 270 and EVA midsole 250 The elongation of the material in the outer lateral wall follows the natural shape of the metatarsal arch during running. This means that the shoes clearly follow the rolling motion of the foot. It offers advantages in terms of wearing comfort and foot fit.

[0070] Figures 6a to 6c show the measurement sections 710a, 710b, and 710 shown in Figures 7a to 7c. The measured relative offset of two measurement points located at opposite ends of c. 610a, 610b, and 610c are shown in millimeters. Measured values ​​for 610a and 610b. , and 610c each include a complete step cycle. Figures 7a to 7c show each The shoes used for the measurement are shown in their starting position.

[0071] Figures 6a and 7a show the information for DE10244433B4 and DE10244435B4. A shoe 200 having a shoe sole 210 and a sliding element 212, as described above. The measurement results and measurement points are shown.

[0072] Figures 6b and 7b show a shoe with an eTPU midsole 230 and an EVA rim. The measurement results and measurement points for the Z200 are shown.

[0073] Figures 6c and 7c show the measurement results and measurements for shoes with an EVA sole 250. To indicate a point.

[0074] The shoe 200 has a sliding element 212 and an eTPU sole with an EVA rim 230. This allows for a significantly larger offset between the two measurement points compared to the EVA midsole 250. This is clearly evident. This is the lower midsole surface relative to the upper midsole surface. It has good shear strength, and therefore, good ability to absorb shear forces generated during running. This means it's good. The simple structure of the 220 shoes allows for a maximum offset of 2.5mm. A value is possible (see Figure 6b), and in the shoe 200 having the sliding element 212, offset Please note that the maximum value is only about 2 mm (see Figure 6a). In contrast, EVA The 240 shoe, which has a 250 midsole, can only have an offset of up to approximately 0.5 mm. Not possible (see Figure 6c).

[0075] Figures 8a to 8c show a shoe 200 (measurement 800a) with a sliding element 212, and EVA Shoes with an eTPU midsole with a rim of 230 (measured 800b), The shear behavior of a shoe 240 (measured at 800c) having an EVA midsole 250. Another measurement is shown. Loading the local offset of the sole material at the moment the heel touches the ground. This is shown in comparison to a state without it.

[0076] Shoes 200 having sliding element 212 and eTPU mids having EVA rim 230 Shoes 220 with a sole, and shoes 240 with an EVA midsole 250. It is clearly evident that the shear strength is substantially higher in the heel region.

[0077] Figure 9 shows the longitudinal direction during the complete step cycle for four different shoes. The measurement results for shear of the midsole material (in the AP direction) are shown.

[0078] On curve 910, the maximum shear force when the heel touches the ground is approximately 2 mm. Figure 6a shows the measurement results for a shoe 200 having a sliding element 212. Curve 930 is As expected, the maximum shear force while the heel is in contact with the ground is approximately 2.5 mm, EVA rim 2 Figure 6b shows the measurement results for shoe 220 with an eTPU midsole having 30. As shown, curve 940 also shows that the maximum shear while the ground is impacted by the heel is approximately 0. Figure 6c shows the measurement of a shoe 240 having an EVA midsole 250 which is 0.5 mm thick. The results are shown below. Finally, on curve 920, the maximum shear while the heel is in contact with the ground is approximately The same applies to shoes 260 with an eTPU midsole 270 which is 1.8mm thick. The measurement results of measurements carried out by law are shown.

[0079] Therefore, shoes 260 having an eTPU midsole 270, and especially EVA The 220 shoes with an eTPU midsole and a rim of 230 are very good. It possesses excellent strength and is therefore highly suitable, primarily for constructing midsoles. It is possible to recognize it.

[0080] Figures 10 to 13 show different measurements of shear strength for various sole designs.

[0081] Figures 10a to 10d show the measured values ​​of the change in length of the measurement section. One of the measurement sections is , positioned longitudinally (AP direction) in the heel area of ​​the sole during the step cycle, The other is positioned in the medial-lateral direction (ML direction). These length variations are in the sole of each sole. This provides information about the shear strength of [the material].

[0082] Figure 10a shows, for example, shoe 240, which has no outsole and an EVA midsole. Regarding shoes having the length 1010a of the measurement section 1015a extending in the AP direction This shows the change in the length 1020a of the measurement section 1025a extending in the ML direction. The measured values ​​are: This indicates that the maximum length change is approximately 1.2 mm in the AP direction and approximately 0.3 mm in the ML direction. vinegar.

[0083] Figure 10b shows, for example, shoe 260, which has no outsole and an eTPU midsole. Regarding shoes having a le, the length of the measurement section 1015b extending in the AP direction is 1010b. The change and the change in length 1020b of the measurement section 1025b extending in the ML direction are shown. The measured values ​​are The maximum length change is approximately 3.5 mm in the AP direction and approximately 1.5 mm in the ML direction. show.

[0084] Figure 10c shows a shoe having a sliding element, such as shoe 200, A The change in length 1010c of measurement section 1015c in the P direction, and measurement section 10 extending in the ML direction This shows a change in length of 25c to 1020c. The measured value shows the maximum length change is approximately 3 in the AP direction. This indicates a length of 2 mm, or approximately 0.7 mm in the ML direction.

[0085] Figure 10d shows the control provided as a midsole and outsole, including eTPU. A preferred shoe 1400 equipped with element 1450, as shown in Figures 1 and 14a-14c. In the embodiment (see below), the length 1010 of the measurement section 1015d extending in the AP direction This shows the change in d and the change in the length 1020d of the measurement section 1025d extending in the ML direction. The values ​​show that the maximum length change in the AP direction is approximately 3.4 mm, and the negative length change in the ML direction is approximately 0. This indicates a length of 0.5 mm. Specifically, the negative length in the ML direction refers to the midfoot region. The shoe's stability is very good, and the effect of the internal reinforcement 1455 of the control element 1450 is It means that it is being reflected.

[0086] Figures 11 and 12 show a series of measurements performed in the same manner as those shown in Figures 10a to 10d. This shows the average value.

[0087] Figure 11 shows a shoe having a sliding element, such as shoe 200 (see curve 1110). (Light) and shoes with an eTPU midsole, such as shoe 260 (curve 1 (See 120) and shoes with an EVA midsole, such as shoe 240 ( (See curve 1130) and shoe 1400 (see curve 1140) according to Figures 14a to 14c. The mean change in the length of the measurement segment extending in the AP direction during a complete step cycle of ) show.

[0088] Figure 12 shows a shoe having a sliding element, such as shoe 200 (see curve 1210). (Light) and shoes with an eTPU midsole, such as shoe 260 (curve 1 (See 220) and shoes with an EVA midsole, such as shoe 240 ( (See curve 1230) and shoe 1400 (see curve 1240) according to Figures 14a to 14c. The mean change in the length of the measurement segment extending in the ML direction during a complete step cycle of ) show.

[0089] As can be inferred from Figures 11 and 12, a shoe 14 in a particularly preferred embodiment 00 had a maximum length change of over 3mm in the AP direction, and all four tested shoes were... Among the types, it has the best shear strength. At the same time, shoe 1400 can be understood from Figure 12. It exhibits sufficient stability in the ML direction so that shear forces are mainly applied in the AP direction during running. When this occurs, bending / slipping of the foot in the ML direction should be avoided as much as possible, so The combination of shoe characteristics is particularly advantageous.

[0090] In another preferred embodiment, a cushioning element causes the lower sole surface to move relative to the upper sole surface. Shear motion in the AP direction of more than 1 mm, preferably more than 1.5 mm, and especially preferably more than 2 mm. This becomes possible. By selecting from among different values ​​of shear strength of the buffer element, shoos It is possible to individually adapt the runner's needs and physiological conditions. The values ​​discussed here are, in order to get an impression of typical and desirable values ​​for the shear strength of a buffer element, For contractors, these values ​​are only useful as guidelines. In individual cases, these values ​​are, ideally, It must be specifically tailored to the wearer's requests and needs.

[0091] As shown schematically in Figures 13a to 13d and Figure 13e, the foot pushes against the ground via the forefoot. The various shoe sole materials compared to the unloaded state of the shoe at the moment of release. The elongation is shown as a percentage. Figures 13a to 13d further show the direction of material elongation locally. The extension vector is shown. Figure 13a shows the extension vector of a shoe 240 having an EVA midsole. Figure 13b shows a measured value of 1300a, and a shoe 26 with an eTPU midsole. The measured value 1300b for 0 is shown. Figure 13c shows a sliding element such as shoe 200. Figure 13d shows the measurement value 1300c for shoes containing the material, and includes a midsole containing eTPU. Figure 1 and Measurement values ​​1300 for a preferred embodiment of the shoe 1400 shown in Figures 14a to 14c. This indicates d (see below).

[0092] As can be clearly seen from the diagram, this foot / shoe position (i.e., the foot on the forefoot area) When it pushes off the ground and leaves (see Figure 13e), the material of shoes 240 and 260 The main load and deformation occur locally in the central part of the forefoot region (see Figures 13a and 13b). (In other foot positions, the main load and deformation can also be observed in the heel area.) However, in the case of shoes and shoes 1400 that have sliding elements, the elongation of the material is out It follows the shape of the sole. Specifically, in Figure 13d, the opening 1452 and the protruding part 145 8, and the structure of the outsole 1450 having the protrusion 1459 can be seen. Figure 14 shows that almost all of the extension vectors in the forefoot region extend parallel to the AP direction. In other words, the material elongates almost exclusively in the AP direction, while its stability in the ML direction is good. This indicates a favorable outcome. This is desirable for dynamically lifting the foot without losing stability. ML If the sole's directional stability is insufficient, especially at high running speeds and for example On curves or uneven terrain, there is a risk of your feet slipping or bending sideways.

[0093] The control element 1450, for example in the form of an outsole, exhibits specific shear behavior and / or It contributes to the formation of a predetermined zone where elongation behavior or specific stability is required. The design of the control element 1450 can be adapted to the requirements of each sport. For example, in sports involving sideways movements, there are various requirements regarding the shear behavior and stability of the sole. It has. Therefore, the control element 1450 and the sole concept are for a specific sport. They can be designed individually. For example, (indoor) football, basketball, and For sports such as running, the best critical shear zone and stability Zones can be determined and individually adapted. For example, in many application areas, such preferences The shear zone and / or stretch zone are located under the big toe and in the heel area. Furthermore, according to the embodiments of the present invention described herein, as when walking barefoot We can manufacture soles that can ideally mimic the rolling motion of the foot.

[0094] Figures 14a to 14c show a shoe 1 having a cushioning element 1410 and a control element 1450. A preferred embodiment of 400 is shown. The cushioning element is partially as part of the midsole. Foam material particles, specifically, are provided as a midsole or arranged randomly. It contains eTPU particles, and the control element 1450 is used as part of the outsole or out The midsole is provided as a tosole, and the medial area of ​​the midfoot is compared to the lateral area of ​​the heel. Reduce the shear strength of 410. Further, the shoes shown in FIGS. 14a to 14 have an upper 1420. In a preferred embodiment, the shoe 1400 further includes, as shown in FIG. 1 and the corresponding embodiments already discussed above, a heel clip 1430 and additional torsional or stiffening elements 1440.

[0095] In a preferred embodiment, the control element 1450 provided as an outsole does not contain a foaming material The control element is preferably made of rubber, thermoplastic urethane, textile material, PEBA, or foil and foil-like materials, or combinations of such materials, respectively. As already mentioned above, it is even more advantageous when the control element 1450 and the cushioning element 1410 are made of materials from a common class of materials. Furthermore, the control element 1450 preferably has several openings 1452 of various sizes, a raised portion 1455 in the inner region of the midfoot, and several protrusions 1458 and projections 14 59. These elements act, as already discussed, to affect the flexibility and rigidity characteristics of the control element 1450, which in part affects the shear strength and bending rigidity of the sole, specifically the midsole 1410. Specifically, in this preferred embodiment, since the control element 1450 is provided as part of the outsole, the projection 1459 and the protrusions 1458 can further increase the grip force on the ground. [[ID=I35]]

[0096] The raised portion 1455 in the inner region of the midfoot and several openings 145 2 with non-uniform diameters shown in FIGS. 14a to 14c, in a preferred embodiment, especially in the heel region, in particular ​​​This allows for good shear strength in the lateral heel area and good stability in the medial metatarsal area. As I have mentioned several times already, this combination of characteristics is a running shoe. It is particularly advantageous to use in certain situations. However, other combinations of properties are also possible, and the original The design options and embodiments described in this document will enable those skilled in the art to obtain shoes having the desired characteristics. It will become possible to manufacture it.

[0097] Figures 15a to 15c show another preferred embodiment of the shoe 1500 according to one aspect of the present invention. It shows the state. Shoes 1500 is as part of the midsole or as the midsole. The midsole is equipped with a cushioning element 1510 and features randomly placed foam material particles. Child, for example, including eTPU. Furthermore, the shoe 1500 is as part of the outsole Alternatively, it is equipped with a control element 1540 provided as an outsole, and the outsole is already As repeatedly discussed, the shear strength and bending stiffness of the buffer element 1510 are selectively affected. It can be done. The shoes also have an upper 1520 and a heel clip 153 It contains 0.

[0098] Figures 21a and 21b show another preferred embodiment of the shoe 2100 according to the present invention. The shoes 2100 have a sole, which is made of randomly placed foam material granules. It includes a buffer element 2110 which includes a child. In the exemplary embodiment shown here, the buffer element 211 0 is provided as the midsole 2110. However, it could simply be a part of it, for example.

[0099] The shoes 2100 also feature an upper 2120. The upper 2120 is made of various materials It can be manufactured from the material using various manufacturing methods. Upper 2120 is specifically This can be warp knitting, weft knitting, weaving, or braiding, and may include natural or synthetic materials. It can include fibers or twisted yarns, multiple laminated materials, composite materials, and so on. It seems so.

[0100] The sole of the shoe 2100 is further provided as the outsole 2150 in this case. It is equipped with a control element 2150. In other cases, it may simply be a part of the outsole. It may also be a part of the midsole. Foam material is not used in the control element 2150. The appropriate material for the control element / outsole 2150 is rubber, non-foamed thermoplastic urethane. This includes textile materials, PEBA, and foil and foil-like materials. It is possible.

[0101] The control element 2150 controls the shear motion in the second region of the buffer element 2110, making it gentler. The shear motion within the first region of the impact element 2110 is reduced. The reduction of shear is, for example, controlled This occurs in regions 2160 and 2165, which contain material in a continuous region of element 2150. The "material web" 2170 has holes 2152, 2155, and 2158 scattered throughout the element 2150. It can also occur in the region of 2175. In the regions of these holes 2152, 2155, and 2158. For example, shear motion can increase relatively.

[0102] The concept of the invention, which involves controlling the shear motion of a buffer element, as explained in this document, Taking the explanation into account, continuous material regions (such as regions 2160 and 2165), "material Material web (like web 2170) and holes (holes 2152, 2155, 2158) By selecting various designs and configurations of the sole, the shear characteristics and other characteristics, such as the bending stiffness, torsional stiffness or overall damping behavior of the midsole 2110 of the shoe 2100 can be affected in a number of ways as desired, which is obvious to those skilled in the art. As already explained up to this point, such effects can be further fine-tuned by optionally including protrusions, projections, and bumps on the control element 21 50.

[0103] In this case, the control element 2150 is laser cut from a blank (not shown). This can be done before fixing the control element 2150 to the remaining part of the sole of the shoe 2100, specifically to the midsole 2110, and preferably at least most of it is done automatically. However, in principle, the blank can be placed on the midsole 2110 first, for example, and then the blank is cut and finally the cut-out part of the blank is removed. For this purpose, an adhesive can be applied between the midsole 2110 and the blank. The adhesive does not cure completely immediately, but still provides sufficient adhesion to fix the blank to the midsole 2110 (or other parts of the shoe 2100) for cutting. For cutting, the shoe 2100 containing the blank can be placed, for example, on a shoe mold so as to enable a three-dimensional arrangement within the cutting device. Since the adhesive has not completely cured, it is still possible to remove the cut-out piece of the blank, and after removal, the adhesive can be left as it is until it cures completely, or it can be promoted by heating, cooling, energization, or other means.

[0104] ​​​In its simplest form, the blank is, for example, the control element / outsole mentioned above. It can be provided as a layer of material containing one or more materials suitable for manufacturing. For example, we can already provide a basic pattern that can be fine-tuned by the laser cutting process. Blanks with defined holes, raised parts, protrusions, and projections are prepared in various sizes and thicknesses. It is also possible to do this. These basic patterns occur, for example, during specific sports activities. It can be adapted to specific movement patterns, for example, and various blanks can be adapted to various sports It can also be used in the manufacture of shoes 2100 for sports activities. For example, running shoes For shoes such as tennis shoes, basketball shoes, and football shoes. Blanks may be included. This method allows for the rapid and large-scale production of blanks in advance, This has the advantage of allowing for more efficient and faster individual customization. This is possible. For this purpose, the blank already has a rough outline of the foot or sole. That's fine.

[0105] Specifically, this involves customization using laser cutting, for example, cutting equipment and manufacturing. This is done in places where there is limited space due to the equipment, such as sales areas and concession stands at sporting events. This can be particularly important in certain situations.

[0106] Laser cutting the control element 2150 increases the design flexibility of the control element 2150. This is possible. As already mentioned, the control element 2150, the sole, and the shoe 21 We can also offer individual customization opportunities for each sole or shoe. The Series 2100 allows for a wide range of fashion designs and corresponding personalization options. These customizations may be specific to the sport, or typical of the customer. It may be due to movement or customer-related movement. Furthermore, laser cutting is mostly This can be automated, for example, by using online tools or other management methods. It is possible.

[0107] Throughout the explanation of Figures 21a and 21b, laser cutting has been mentioned, but other techniques In principle, it is also possible by law. Examples include CNC cutting, punching, and waterjet cutting. be.

[0108] Finally, Figures 22a to 22d show the shoes 2200a, 2200b, and 2200a according to the present invention. Another currently preferred embodiment of 00c and 2200d is shown.

[0109] The main purpose of Figures 22a to 22d is to show those skilled in the art the scope of the present invention and other possible embodiments. The goal is to make it easier to understand. Therefore, embodiments 2200a, 2200b, 2 Sections 200c and 2200d will only be discussed briefly. Detailed descriptions of individual aspects will be omitted. Therefore, the shoes, soles, midsoles, and looseness according to the present invention, as already described in this specification, Description of embodiments of impact elements and control elements, specifically embodiments 100, 1400, and 15. 00, 1600, 1700, 1800a~1800d, 1900, 2000, and 21 Refer to the discussion in 00. The specifics, selections, and functions discussed in relation to those embodiments are appropriate. Embodiments 2200a, 2200b, 2200c, and 2200d are also applicable where applicable. To use.

[0110] Shoes 2200a, 2200b, 2200c, and 2200d are distributed randomly. Each buffer element 2210a, 2210b, 2210c contains particles of foamed material, and The sole has 2210d. Cushioning element 2 of shoes 2200a and 2200b 210a and 2210b extend only across the forefoot area, but shoe 2200c The cushioning elements 2210c and 2210d of 2200d are shoes 2200c and 2200 It extends across the entire sole of d. The cushioning elements 2210a, 2210b, and 221 shown here 0c and 2210d are provided as parts of the respective midsoles. However, Other arrangements of buffer elements are also possible.

[0111] The soles of shoes 2200a, 2200b, 2200c, and 2200d are Furthermore, control elements 2250a, 2250b, 2250c, which do not use foaming materials, It includes control elements 2250a, 2250b, 2250c, and 225 0d is the respective buffer element 2210a, 2210b, 2210c, and 2210d Compared to the shear motion in the second region, each buffer element 2210a, 2210b, 2210c This reduces shear motion in the first region of 2210d. Embodiment 2200 shown here In a, 2200b, 2200c, and 2200d, control elements 2250a, 2250b 2250c and 2250d are provided as parts of the respective outsoles. .

[0112] Control elements 2250a, 2250b, 2250c, and 2250d further control each buffer element Selectively increases the bending resistance of elements 2210a, 2210b, 2210c, and 2210d. You can work with the purpose of getting someone to do something.

[0113] Each cushioning element 2210a, 2210b, 2210c, 2210d or the shear force of the sole To influence dynamic and bending stiffness, control elements 2250a, 2250b, and 2250 c and 2250d have several holes in various arrangements, shapes, sizes, and sole areas. It also has openings 2252a, 2252b, 2252c, and 2252d. Control element 225 0a, 2250b, 2250c, and 2250d are further described as "web" or material mesh. Shu 2258a, 2258b, 2258c, 2258d to individual openings 2252a, 22 Provided between 52b, 2252c, and 2252d.

[0114] Openings 2252a, 2252b, 2252c and material mesh 2258a, 2258 b, 2258c in embodiments 2200a, 2200b and 2200c is diamond Although it is constructed in a certain shape, the opening 2252d and the material mesh 2258d are generally parallelograms. It forms... However, as has been discussed and illustrated several times throughout this document, for example, sho Other configurations are also possible in the heel area of ​​the 2200d. Furthermore, control element 2250 a, 2250b, 2250c, and 2250d are provided with other protrusions, projections, etc. It is also possible. For example, as shown in Figure 22a, the control element 2250a has several protrusions 225 It is equipped with 9a.

[0115] Diamond-shaped or parallelogram-shaped openings 2252a, 2252b, 2252c, 22 52d and material mesh 2258a, 2258b, 2258c, 2258d are repeated many times. The reversible structure is, specifically, one in which the sole can primarily be sheared or bent along it. This can result in multiple desirable directions. Precise pattern of holes and material areas By arrangement, they can be used to meet a given requirement profile for a specific sole or shoe. The preferred direction can be adjusted.

[0116] To facilitate understanding of the present invention, another embodiment is described below. [Examples]

[0117] 1 a. A buffer element containing randomly arranged foam material particles, b. For shoes, especially sports shoes, that have control elements that do not use foam materials. These are soles for shoes. c. The control element controls the shear motion of the first region of the buffer element compared to the shear motion of the second region of the buffer element. Shear motion within the region is reduced. Sole.

[0118] 2. The foaming material particles are foamed ethylene vinyl acetate, foamed thermoplastic urethane, and foamed polypropylene. Pyrene, expanded polyamide, expanded polyether block amide, expanded polyoxymethylene, Expanded polystyrene, expanded polyethylene, expanded polyoxyethylene, expanded ethylene propylene The sole according to Example 1, comprising one or more of the diene monomers.

[0119] 3. Control elements include rubber, thermoplastic polyurethane, textile materials, and polyether block. The above example 1 comprises one or more of mid, foil, or foil-like materials. The sole described in one of the two items.

[0120] 4. The inherent shear resistance of the first region of the buffer element is higher than that of the second region of the buffer element. The sole described in one of the examples 1 to 3.

[0121] 5. The control element controls the shear motion of the buffer element in the second control region. Furthermore, in the first control region that controls the shear motion of the buffer element in the first region, thickness A sole according to one of the above embodiments 1 to 4, which has large and / or few holes.

[0122] 6. The cushioning element is provided as part of the midsole, as described in one of the embodiments 1 to 5 above. The sole.

[0123] 7. The sole according to Example 6, wherein the control element is provided as part of the outsole.

[0124] 8. The outsole is not directly attached to the second area of ​​the cushioning element of the midsole. The sole according to Example 7, comprising a separation region.

[0125] 9. Control elements and cushioning elements are made from a common class of materials, specifically thermoplastic polyurethane. A sole as described in one of the above embodiments 1 to 8.

[0126] 10 The first area is located in the medial metatarsal region, and the second area is located in the lateral heel region, anterior The sole described in one of the examples 1 to 9.

[0127] 11 The control element further compares the bending resistance of the buffer element in the first region with that of the second region. The sole according to one of the above embodiments 1 to 10, which increases by

[0128] 12. A non-foaming material, specifically ethylene vinegar, that surrounds at least a portion of the buffering element. The embodiment described in one of the above embodiments 1 to 11 further comprises a frame made of vinyl acid. Sole.

[0129] 13 Due to the cushioning element, the lower sole surface is more than 1 mm, preferably, relative to the upper sole surface. The above embodiment enables longitudinal shear motion of more than 1.5 mm, and particularly preferably more than 2 mm. The sole described in one of Examples 1 through 12.

[0130] 14 The control element is laser-cut from a blank, as described in one of the embodiments 1 to 13. The sole.

[0131] 15. A shoe, particularly an athletic shoe, having a sole as described in one of the above embodiments 1 to 14. It should be noted that the present invention includes the following embodiments. [Aspect 1] A shoe sole comprising a midsole (1900) containing randomly arranged foam material particles (1910), The midsole comprises a first plate element (1920) and a second plate element (1930), the first and second plate elements sliding relative to each other. The sole, wherein the first and second plate elements are completely or partially surrounded by the particles. [Aspect 2] The sole according to embodiment 1, wherein the first and second plate elements are arranged in the heel region of the midsole so as to be opposite each other. [Aspect 3] The sole according to embodiment 1 or 2, wherein a lubricant or gel is provided between the first plate element and the second plate element. [Aspect 4] The sole according to any one of embodiments 1 to 3, wherein the sliding movement of the first and second plate elements absorbs or reduces the horizontal shear force acting on the wearer's musculoskeletal system when the wearer of the shoe equipped with the sole steps on the ground. [Aspect 5] The sole according to any one of embodiments 1 to 4, wherein the first and second plate elements each have a curved sliding surface, and the curvature of each of the curved sliding surfaces is selected so that these curved sliding surfaces fit together. [Aspect 6] The sole according to any one of embodiments 1 to 5, wherein the foamed material is selected from the group consisting of foamed ethylene vinyl acetate, foamed thermoplastic urethane, foamed polypropylene, foamed polyamide, foamed polyether block amide, foamed polyoxymethylene, foamed polystyrene, foamed polyethylene, foamed polyoxyethylene, foamed ethylene propylene diene monomer, and combinations thereof. [Aspect 7] A shoe having a sole as described in any one of the embodiments 1 to 6. [Explanation of symbols]

[0132] 100 sole 110 Buffer element 120 elements, torsion elements, reinforcing elements 130 control elements 132 Protrusion 135 Protrusion, protrusion 138 Openings, recesses 140 recess 150 Heel Clip 160 Separation area 1635 Foaming material particles 1735 Foaming material particles 1910 Foaming material particles 2010 Foaming material particles

Claims

1. A buffer element comprising randomly arranged foamed thermoplastic polyurethane particles, Control elements that do not use foaming materials, A sole for shoes that has the following features: The control element increases the bending resistance of the buffer element in the first region compared to the bending resistance of the buffer element in the second region. Sole.

2. The sole according to Claim 1, The first region is located in the medial metatarsal region, and the second region is located in the lateral heel region. Sole.

3. The sole according to claim 1 or 2, The control element includes a stabilizing protrusion located on the medial edge of the midfoot region, The bending resistance of the heel and toe regions of the cushioning element is lower than the bending resistance of the midfoot region of the cushioning element, which is stabilized by the raised portion of the control element. Sole.

4. A shoe comprising the sole described in any one of Claims 1 to 3.

Images