Stabilizing element of an upper

Abstract

The invention relates to a shoe (1) comprising an upper (2), an outsole (3) and a stabilizing element (10). The stabilizing element extends from the outsole upwardly towards an entry opening (4) of the upper and rearwardly towards a heel region (5) of the shoe. Furthermore, the stabilizing element comprises an outer layer (12), wherein the stabilizing element extends along a lateral side (6) of the upper. Furthermore, a region (13) of the lateral side of the upper is not covered by the stabilizing element, whereby the region (13) is located between the stabilizing element and the outsole. Furthermore, the region (13) continuously transitions into a further region (18) of the lateral side of the upper which is not covered by the stabilizing element. The further region (18) extends into a portion of the upper which is configured to accommodate an Achilles region and / or an Achilles insertion. The outer layer of the stabilizing element is integrally formed with the outsole of the shoe.

Description

Technical Field

[0001] This invention relates to a shoe comprising an upper, an outsole, and a stabilizing element. Furthermore, this invention relates to a method for manufacturing at least one locking element in the upper, a corresponding upper, and a shoe comprising said upper. Background Technology

[0002] When designing shoes, there is often a trade-off between comfort, functionality, and safety. For example, football boots can provide excellent comfort due to their significant cushioning. However, the same football boots may have functional deficiencies due to this significant cushioning, such as limited ball feel, and safety deficiencies, such as insufficient ankle stability.

[0003] However, the fundamental objective is to increase the comfort, functionality, and safety of footwear. Especially for sports and outdoor activities, comfortable footwear, ensuring a low risk of injury, and fulfilling the intended function of the footwear are crucial. In this regard, the present invention aims to address the first and second problems.

[0004] The first problem addressed by this invention is the design of stabilizing elements for ankle stability. Ankle stability is needed for various types of footwear to prevent injury to the ankle and / or avoid ligament damage. For example, when a football player shoots from a soft and / or uneven surface, the risk of twisting their ankle increases, which can lead to injury. Therefore, stabilizing elements can be applied to footwear, especially football boots. However, stabilizing elements known in the prior art have several drawbacks. Existing stabilizing elements do not provide sufficient stability and / or are uncomfortable to the extent that they affect foot health.

[0005] The first set of existing stabilizing elements surrounds the heel area and extends from the outsole of the shoe toward the medial and lateral ankle areas and toward the Achilles tendon area. Thus, this stabilizing element extends from the lateral side of the shoe to the medial side of the shoe and at least partially surrounds the Achilles tendon area, particularly the Achilles tendon attachment point.

[0006] Because these stabilizing elements form around the heel area, they provide good ankle stability for the wearer. This is because these stabilizing elements fit snugly around the heel. However, they exert pressure on the Achilles tendon area, especially the Achilles tendon attachment point. This can be uncomfortable for the wearer, especially during running. Furthermore, this pressure on the Achilles tendon area, particularly the Achilles tendon attachment point, can lead to Achilles tendon irritation or even inflammation.

[0007] The second set of existing stabilizing elements extends from the outsole of the shoe toward either the medial or lateral ankle region. Therefore, these stabilizing elements do not extend from the lateral side of the shoe to the medial side, and thus do not surround the Achilles tendon area. Instead, the first stabilizing element is located on the lateral side of the shoe, and the second stabilizing element is located on the medial side.

[0008] Therefore, this stabilizing element prevents pressure from being applied to the Achilles tendon area, especially the tendon attachment point. This provides increased comfort. Furthermore, it prevents Achilles tendon irritation and even inflammation. However, because the second set of existing stabilizing elements does not securely fasten to the heel area, they offer less stability to the wearer.

[0009] Therefore, the first object of the present invention is to provide a shoe including a stabilizing element that maximizes stability while minimizing pressure acting on the Achilles tendon region, particularly at the Achilles tendon attachment.

[0010] The second problem addressed by this invention relates to the need to keep the wearer's foot securely inside the shoe, preferably in a comfortable manner.

[0011] Typically, shoelaces are known to secure the wearer's foot in a shoe. Additionally, stretchable elements and Velcro fasteners are commonly used to hold the foot in place. However, in some cases, additional means of securing the foot in the shoe are desirable. For example, when particularly good retention within the shoe is required. Furthermore, in some situations, it may be necessary to have a shoe without laces. One reason might be to provide a football boot that allows for a particularly good feel for the ball in the top midfoot area. Another reason might be that tight laces are often considered uncomfortable.

[0012] Therefore, a second objective of the present invention is to provide a device for improving the fixation of the wearer's foot inside the shoe. Summary of the Invention

[0013] The first objective of the present invention is achieved at least in part by the first aspect of the present invention. Furthermore, the first objective of the present invention is achieved at least in part by the second aspect of the present invention. Even further, the first objective of the present invention is achieved at least in part by the third aspect of the present invention. Moreover, the second objective of the present invention is achieved at least in part by the fourth aspect of the present invention.

[0014] A first aspect of the invention according to a first alternative relates to a shoe comprising an upper, an outsole, and a stabilizing element. The stabilizing element extends upward from the outsole toward an entry opening in the upper and rearward toward a heel region of the shoe. Optionally, the stabilizing element extends rearward toward the heel region of the shoe. Furthermore, the stabilizing element includes an outer layer. Additionally, the stabilizing element extends along the outer side of the upper, wherein a region on the outer side of the upper is not covered by the stabilizing element, thereby situated between the stabilizing element and the outsole. This region continuously transitions into another region on the outer side of the upper that is not covered by the stabilizing element, thereby extending into a portion of the upper configured to accommodate the Achilles tendon region and / or Achilles tendon attachment. Furthermore, the outer layer of the stabilizing element is integrally formed with the outsole of the shoe.

[0015] Therefore, "integral formation" can refer to the aspect where the material boundary between the outsole and the outer layer is not identifiable. Specifically, the outer layer and outsole can be integrally formed through injection molding, direct casting, and / or foaming. Furthermore, the outer layer and outsole can contain polymer materials. Specifically, the outer layer and outsole can contain polyamide, polyurethane, and / or rubber. By integrally forming the outer layer with the outsole, the outer layer can be provided with higher pretension relative to the inner layer. Therefore, higher pressure can be applied to the wearer's heel area. Additionally, the necessary work steps can be reduced.

[0016] The outer region of the upper, not covered by the stabilizing element and located between the stabilizing element and the outsole, can be at least partially defined by an axis extending substantially perpendicularly from the outsole to the stabilizing element. More specifically, this axis can extend substantially perpendicularly from the extended plane of the outsole to the final point of the stabilizing element. This region, not covered by the stabilizing element, at least partially avoids applying uncomfortable pressure to the Achilles tendon area. In particular, this region prevents the stabilizing element from applying pressure to the Achilles tendon attachment site. Therefore, shoe comfort can be increased and / or Achilles tendon irritation can be avoided. It should be understood that, in addition to the region on the outer side of the upper between the stabilizing element and the outsole, other areas of the upper may also be left uncovered by the stabilizing element.

[0017] The aforementioned additional area further avoids applying uncomfortable pressure to the Achilles tendon area. Specifically, this additional area prevents stabilizing elements from applying pressure to the Achilles tendon attachment site. Furthermore, the flexibility of the upper is not hindered by stabilizing elements in the Achilles tendon area and / or at the Achilles tendon attachment site. Therefore, shoe comfort can be increased and / or Achilles tendon irritation can be avoided. This additional area preferably extends from the outer side of the shoe to the inner side. Thus, the aforementioned advantages can be further emphasized.

[0018] Furthermore, it should be understood that the outer layer of the stabilizing element can be applied directly to the outer side of the shoe upper. Exemplarily, the outer layer of the stabilizing element can be attached to the outer side of the shoe upper by stitching, heat welding, and / or gluing. However, the outer layer of the stabilizing element can contact the outer side of the shoe upper without additional attachment to it. Further, it should also be understood that the term "outer layer" as described above can be more generally referred to as a "layer." However, the term "outer layer" is preferred in light of the further features of the invention described below.

[0019] Furthermore, the stabilizing element of a shoe according to a first alternative of the first aspect of the invention may include an inner layer. It is understood that the inner layer may be disposed between the outer layer and the outer side of the upper. The inner layer provides additional support and allows for functional separation within the stabilizing element. Exemplarily, the inner layer may provide support for the wearer's foot, while the outer layer serves to fasten the inner layer toward the wearer's foot. Thus, since the inner and outer layers are optimized with respect to their specific functions, the amount of material required for the stabilizing element can be reduced.

[0020] Furthermore, the lower rearward edge of the stabilizing element can extend upward from the outsole toward the step opening of the upper and backward toward the heel area of ​​the shoe, wherein the angle between the lower rearward edge of the stabilizing element and the extended plane of the outsole is preferably between 10° and 90°, more preferably between 15° and 60°, even more preferably between 20° and 50°, and most preferably between 30° and 40°. The lower rearward edge can at least partially define the stabilizing element in the rearward direction. Furthermore, the stabilizing element can at least partially be defined in the rearward direction by the upper rearward edge of the stabilizing element, wherein the upper rearward edge can be arranged to offset from the rearmost line of the upper, which extends upward from the outsole toward the step opening. The upper rearward edge can be arranged from the lower rearward edge in the upward direction. The stabilizing element can be completely defined in the rearward direction by the upper rearward edge and / or the lower rearward edge. It should be understood that, by the above description, the aforementioned area on the outer side of the upper, which is not covered by the stabilizing element and is located between the stabilizing element and the outsole, can be described alternatively.

[0021] Furthermore, a first aspect of the invention according to a second alternative relates to a shoe comprising an upper, an outsole, and a stabilizing element. The stabilizing element extends upward from the outsole toward a step opening in the upper and rearward toward the heel region of the shoe. Optionally, the stabilizing element extends rearward toward the heel region of the shoe. Furthermore, the stabilizing element comprises an inner layer and an outer layer. Moreover, the inner and outer layers comprise different materials. The stabilizing element extends along the outer side of the upper.

[0022] Different materials allow for the separation of functions. The inner layer may include a material with higher stiffness and / or higher strength than the outer layer. For example, the inner layer may include a fiber-reinforced polymer. Furthermore, the outer layer may include a material with higher elasticity or higher stiffness than the inner layer. For example, the outer layer may comprise a polyamide material. Thus, the inner layer can provide support, while the outer layer can fasten the inner layer to the upper. Therefore, the stabilizing element can be fastened to the wearer's heel and / or ankle. This increases stability. Furthermore, the weight of the stabilizing element can be reduced due to the specific use of materials. For example, an inner layer comprising a fiber-reinforced polymer may include a reduced thickness due to its higher tensile strength. Furthermore, the inner layer can be adapted to the characteristics of the wearer's foot, while the outer layer can remain unchanged. Therefore, by using different materials to separate the functions in the stabilizing element, modification work can be reduced. The inner and / or outer layers may include polymers such as polyamide, polyurethane, and / or rubber. Specifically, the inner and / or outer layers may comprise ethylene-vinyl acetate (EVA), polyamide 11 (PA 11), and / or polyamide 12 (PA 12). Furthermore, the inner and / or outer layers may comprise thermoplastic elastomers (TPEs), such as polyether block amide (PEBA) and / or thermoplastic polyurethane (TPU). Additionally, the inner and / or outer layers may comprise composite materials, natural materials, and / or metals.

[0023] The inner and outer layers of the shoe according to the first alternative may include different materials. Thus, the configuration and / or advantages described in the preceding paragraphs can be considered.

[0024] According to the second alternative, the shoe may further specify that a region on the outer side of the upper is not covered by the stabilizing element, thereby situated between the stabilizing element and the outsole. This region may be at least partially defined by an axis extending vertically from the outsole to the stabilizing element. More specifically, the axis may extend vertically from the extended plane of the outsole to the final point of the stabilizing element. It should be understood that the axis may be a virtual axis and may be used to define this region. This region avoids applying uncomfortable pressure to the Achilles tendon area. In particular, the region avoids the stabilizing element applying pressure to the Achilles tendon attachment site. Therefore, shoe comfort can be increased and / or Achilles tendon irritation can be avoided. It should be understood that, in addition to the region on the outer side of the upper located between the stabilizing element and the outsole, other regions of the upper may also be left uncovered by the stabilizing element.

[0025] Furthermore, the lower rearward edge of the stabilizing element can extend upward from the outsole toward the step opening of the upper and backward toward the heel area of ​​the shoe, wherein the angle between the lower rearward edge of the stabilizing element and the extended plane of the outsole is preferably between 10° and 90°, more preferably between 15° and 60°, even more preferably between 20° and 50°, and most preferably between 30° and 40°. The lower rearward edge can at least partially define the stabilizing element in the rearward direction. Furthermore, the stabilizing element can at least partially be defined in the rearward direction by the upper rearward edge of the stabilizing element, wherein the upper rearward edge can be arranged to offset from the rearmost line of the upper, which extends upward from the outsole toward the step opening. The upper rearward edge can be arranged in a direction downward from the lower rearward edge. The stabilizing element can be completely defined in the rearward direction by the upper rearward edge and / or the lower rearward edge. It should be understood that, by the above description, the aforementioned area on the outer side of the upper, which is not covered by the stabilizing element and is located between the stabilizing element and the outsole, can be described alternatively.

[0026] It should be understood that the following description pertains to a first alternative to the first aspect of the invention and a second alternative to the first aspect of the invention. Furthermore, according to the invention, the term "rearward" relative to the shoe refers to the direction from the toe towards the Achilles tendon region of the shoe. Therefore, the "last" point of the shoe element is the point furthest from the toe. Furthermore, according to the invention, the term "upward" refers to the direction from the outsole towards the upper.

[0027] The shoes according to the invention can be athletic shoes, day shoes, casual shoes, and / or work shoes. Furthermore, the shoes can be soccer shoes, running shoes, mountaineering boots (climbing boots), ski boots, cross-country ski boots, and / or basketball shoes. The examples mentioned are not conclusive.

[0028] The upper may comprise polymeric materials and / or natural materials, such as leather and / or natural fibers. Furthermore, the upper may comprise woven materials, knitted materials, materials with unidirectional fibers, and / or fiberless materials. Preferably, the material of the main portion of the upper has a lower stiffness than the material of the inner and / or outer layers of the stabilizing elements.

[0029] A stabilizing element can be used to secure the wearer's heel within the shoe. Specifically, the stabilizing element can press the heel against the sole. This allows the calcaneus to be primarily pressed against the sole, preferably without applying load to the Achilles tendon area, particularly the Achilles tendon attachment point. By securing the wearer's heel within the shoe, instability caused by the heel slipping inside the shoe can be avoided. Therefore, the stabilizing element can be used to at least indirectly stabilize the wearer's ankle. Furthermore, by at least indirectly stabilizing the wearer's ankle, ankle twisting can be prevented. The term "ankle" in this invention can also be referred to as the ankle joint.

[0030] The stabilizing element can contact the outsole. Therefore, the stabilizing element can extend from the rear half of the shoe. Furthermore, the stabilizing element can extend from the heel area and / or the underfoot area of ​​the shoe. According to the invention, the heel area can be referred to as the area surrounding the wearer's heel and / or calcaneus. The step opening can also be referred to as the throat opening.

[0031] Using at least two layers, namely an inner layer and an outer layer, allows for gradations of stability. Exemplarily, areas of the upper requiring less stability can be covered by only one layer, while areas requiring more stability can be covered by at least two layers. Furthermore, the functional separation can be achieved through the at least two layers of the stabilizing element. The inner layer can be more rigid than the outer layer and / or designed to provide a stable shape. The outer layer can be more flexible than the inner layer and / or designed to fasten the inner layer towards the inside of the shoe. Thus, through functional separation, the stabilizing element itself can be provided with a stable shape and can further provide sufficient pressure to the heel and / or ankle areas. Both aspects contribute to improved stability. Additionally, in an alternative embodiment, the outer layer can be more rigid than the inner layer and / or designed to provide a stable shape. The inner layer can be more flexible than the outer layer and / or designed to conform to the shape of the foot.

[0032] In addition to the inner and outer layers, the stabilizing element may also include other layers. For example, an adhesive layer may be applied between the inner layer and the outer side of the upper. More exemplaryly, an adhesive layer may also be applied between the inner and outer layers.

[0033] Stabilizing elements extending along the outer side of the upper can be securely attached to the outer side of the upper. Specifically, the inner and / or outer layers can be sewn, glued, and / or heat-welded to the outer side of the upper. Therefore, stability can be further enhanced by means of stabilizing elements.

[0034] The area on the outer side of the upper that is not covered by the stabilizing element and is located between the stabilizing element and the outsole can be at least 100mm in size. 2 Preferably at least 150mm 2 More preferably at least 200mm 2 Even more preferably at least 250mm 2 And most preferably at least 300mm 2 These dimensions ensure that the pressure applied to the Achilles tendon area is minimized. In particular, pressure on the Achilles tendon attachment site can be at least partially avoided.

[0035] In a shoe according to the second alternative of the first aspect, the area on the outer side of the upper not covered by the stabilizing element and located between the stabilizing element and the outsole can continuously transition to another area on the outer side of the upper not covered by the stabilizing element. Thus, this additional area can extend into a portion of the upper configured to accommodate the Achilles tendon region and / or Achilles tendon attachment, whereby this additional area preferably extends from the outer side of the shoe to the inner side. This additional area can further prevent uncomfortable pressure on the Achilles tendon region. In particular, this additional area can prevent the stabilizing element from applying pressure to the Achilles tendon attachment. Furthermore, the flexibility of the upper is not hindered by the stabilizing element in the Achilles tendon region and / or at the Achilles tendon attachment. Therefore, shoe comfort can be increased and / or Achilles tendon irritation can be avoided.

[0036] Stabilizing elements may include wing-shaped, parallelogram-shaped, trapezoidal, elliptical, and / or rectangular shapes. Thus, these shapes may include rounded edges. Furthermore, it should be understood that explicit geometric equivalence is not required. In particular, the inner and / or outer layers may include wing-shaped, parallelogram-shaped, trapezoidal, elliptical, and / or rectangular shapes. These shapes can be used to optimally cover the ankle area. In particular, parallelograms can be advantageous because one side may be attached to or integrally formed with the outsole, wherein two parallel sides face and optionally extend into the heel area and upward toward the step opening. As mentioned above, explicit geometric equivalence for parallelograms is not required. Therefore, regarding parallelograms, it should be understood that the two parallel sides facing and optionally entering the heel area and extending upward toward the step opening do not need to be precisely parallel.

[0037] The shape of the stabilizing element can be defined by at least two straight edges extending upwards toward the foot opening and backwards toward the heel area along the outer side of the upper, wherein the length of the two edges is preferably at least 10 mm, more preferably at least 15 mm, even more preferably at least 20 mm, and most preferably at least 25 mm. It should be understood that the straight edges do not necessarily have to be geometrically precise straight lines. Rather, the straight edges can be substantially straight in a geometric sense. This can include at least one straight edge being slightly curved, for example having a decreasing or increasing gradient when viewed from the surface defined by the outsole. The two straight edges can define the shape of the inner and / or outer layer. Thus, the angle between the outsole and at least one straight edge can be in the range of 5 degrees to 70 degrees, preferably in the range of 10 degrees to 60 degrees, more preferably in the range of 15 degrees to 50 degrees, even more preferably in the range of 20 degrees to 40 degrees, and most preferably in the range of 25 degrees to 35 degrees. By defining the shape of the stabilizing element by the two straight edges, it can be ensured that no pressure or very little pressure is applied to the Achilles tendon attachment site.

[0038] The inner and / or outer layers may each comprise a thickness of 0.01 mm to 3 mm, preferably 0.1 mm to 2 mm, more preferably 0.2 mm to 1 mm, even more preferably 0.25 mm to 0.5 mm, and most preferably 0.28 mm to 0.32 mm. This thickness range allows for a good trade-off between stiffness (i.e., foot stability) and comfort.

[0039] The stabilizing element may extend at least partially to the lateral or medial ankle region of the foot. The term "ankle region" according to the invention generally refers to the area of ​​the foot covered by the upper, including the ankle (i.e., the ankle joint). The term "medial ankle region" according to the invention may refer to the area of ​​the foot covered by the upper, including the ligament between the tibia and calcaneus. Furthermore, the term "lateral ankle region" according to the invention may refer to the area of ​​the foot covered by the upper, including the ligament between the fibula and calcaneus.

[0040] According to a second alternative to the first aspect of the invention, the outer layer of the stabilizing element of the shoe can be integrally formed with the outsole. Thus, "integrally formed" can refer to an aspect where the material boundary between the outer layer and the outsole is not identifiable. Specifically, the outer layer and outsole can be integrally formed by injection molding, direct casting, and / or foaming. Furthermore, the outer layer and outsole can comprise polymer materials. Specifically, the outer layer and outsole can comprise polyamide, polyurethane, and / or rubber. By integrally forming the outer layer with the outsole, the outer layer can be provided with higher pretension relative to the inner layer. Therefore, higher pressure can be applied to the wearer's heel area. Furthermore, the necessary work steps can be reduced.

[0041] The shape of the inner layer can correspond to the shape of the outer layer. The term "correspond" can refer to the outer layer's shape being located within the inner layer and / or at least one edge of the inner and / or outer layers being substantially parallel. This allows for continuous load transfer between the inner and outer layers, thus enabling a uniform stress distribution. Consequently, material damage due to stress concentration can be avoided.

[0042] The inner layer may extend beyond the outer layer. Preferably, the inner layer may extend backward toward the Achilles tendon region and / or upward toward the step opening beyond the outer layer. Therefore, the inner layer can increase the support of the stabilizing element for the foot. Furthermore, the inner layer may extend forward toward the toe region of the foot beyond the outer layer. Thus, the outer layer can be used to press the inner layer inward into the shoe. Therefore, by adjusting the inner layer, the area of ​​the upper that should be stabilized can be easily modified, while the outer layer can remain unchanged.

[0043] The inner layer can have a larger profile than the outer layer. Specifically, the inner layer can be used to cover areas of the upper that should be stabilized. Thus, the outer layer can be used to press the inner layer inwards into the shoe. Therefore, by adjusting the inner layer, the areas of the upper that should be stabilized can be easily modified, while the outer layer can remain unchanged.

[0044] The inner layer may include a composite layer, which is preferably a fiber-reinforced layer. The term "composite" may refer to the layer comprising aspects of at least two materials with different material properties. Thus, the composite layer may include fiber-reinforced polymers. In particular, the composite layer may include carbon fiber-reinforced polymers, glass fiber-reinforced polymers, natural fiber-reinforced polymers, ceramic fiber-reinforced polymers, and / or aramid fiber-reinforced polymers. Therefore, the inner layer can provide high strength and / or high stiffness. Furthermore, the weight of the inner layer can be reduced.

[0045] Furthermore, the inner layer may include anisotropic material properties. Through these anisotropic properties, the inner layer can be adapted to specific load conditions. For example, the fibers in the inner layer can be oriented to provide high flexural stiffness and low torsional stiffness. Therefore, the shoe can provide flexibility while offering stability that prevents ankle twisting.

[0046] The outer layer may include at least one of the following materials: ethylene-vinyl acetate (EVA), polyamide 11 (PA11), polyamide 12 (PA12), thermoplastic elastomers (TPEs) such as polyether block amide (PEBA), and / or thermoplastic polyurethane (TPU). Therefore, the outer layer can provide high rigidity to fasten the inner layer to the upper. Furthermore, the outer layer can thus be integrally formed with the outsole.

[0047] The outer layer can have a triangular cross-section. Therefore, the cross-section of the outer layer can include three corners. These corners can be at least partially rounded. Furthermore, the cross-section of the outer layer can include three edges. These three edges can be straight or partially curved. In particular, one edge and / or two corners can contact the inner layer. The triangular cross-section increases the area moment of inertia of the outer layer, especially compared to a substantially rectangular cross-section with the same area. Therefore, the stiffness of the outer layer can be increased.

[0048] The outer layer may include a varying thickness. For example, a first portion of the outer layer may have a greater thickness than a second portion of the outer layer. For example, the first and second portions may be separated by steps in the surface of the outer layer. The steps may be discontinuous changes in the surface of the outer layer.

[0049] The outer layer may include reinforcing ribs. These ribs may include steps separating the first and second portions of the outer layer as defined above. The reinforcing ribs may extend from the outsole along the outer layer of the stabilizing element. Preferably, the outer layer of the stabilizing element is integrally formed with the outsole or a component of the outsole. The reinforcing ribs may extend substantially along the entire length of the stabilizing element. The reinforcing ribs may extend at least partially along the outsole. The reinforcing ribs increase the area moment of inertia of the outer layer. Therefore, the stiffness of the outer layer can be increased.

[0050] The outer layer may include a composite layer. When the outer layer includes a composite layer, the stiffness of the stabilizing element can be further increased. Therefore, the stabilizing element can provide even greater stability.

[0051] An outsole may include multiple parts. Exemplarily, the outsole may be formed as a modular assembly. Thus, at least one module of the modular assembly of the outsole may be a composite module. The composite module is preferably a fiber-reinforced module. The term "composite" may refer to aspects of at least two materials with different material properties. Thus, the composite module may include fiber-reinforced polymers. In particular, the composite module may include carbon fiber-reinforced polymers, glass fiber-reinforced polymers, natural fiber-reinforced polymers, ceramic fiber-reinforced polymers, and / or aramid fiber-reinforced polymers. Exemplarily, the composite module may be a plate or a rod, but is not limited thereto. An outsole may include multiple composite modules.

[0052] Furthermore, at least one module can be connected to the inner and / or outer layers of the stabilizing element. In particular, the module can be integrally formed with the inner and / or outer layers. Thus, "integrally formed" can refer to aspects where the material boundary cannot be identified between the outer layer and the module.

[0053] Furthermore, the line on the outer side of the upper may not be covered by the inner and / or outer layers, and this line extends substantially in a straight line along the Achilles tendon region from the outsole to the step opening. Thus, preferably, the line is not covered by the stabilizing elements. By having this line on the outer side of the upper, extending substantially in a straight line along the Achilles tendon region from the outsole to the step opening, and not being covered by the inner and / or outer layers, Achilles tendon mobility can be enhanced, improving comfort and / or functionality. This is because the influence of the inner and / or outer layers on the stretching and / or relaxation of the Achilles tendon is at least reduced. This is especially true because the stretching and / or relaxation of the Achilles tendon may be primarily limited by the upper material. These advantages are particularly applicable if the shoe includes both stabilizing elements as described below.

[0054] The shoe may include two stabilizing elements as defined above, wherein preferably the first stabilizing element is disposed on the lateral side of the shoe, and more preferably the second stabilizing element is disposed on the medial side of the shoe. Thus, a shoe with increased lateral and medial stability can be provided. Therefore, the risk of twisting in the lateral and medial directions is reduced. Furthermore, as described above, the stabilizing elements avoid applying pressure to the Achilles tendon region, particularly avoiding pressure on the Achilles tendon attachment site.

[0055] The inner layers of the first stabilizing element and the inner layers of the second stabilizing element can be connected to each other via a first connecting element. The first connecting element can extend at least partially along the sole region of the shoe. The first connecting element can be integrally formed with the inner layers of the first stabilizing element and the inner layers of the second stabilizing element.

[0056] The inner layers of the first and second stabilizing elements can be connected to a module of the modular assembly of the outsole. Specifically, the inner layers can be integrally formed with this module, as described above. Furthermore, the inner layers of the first and second stabilizing elements can be connected to the same module of the modular assembly of the outsole. Therefore, the inner layers can be connected to each other via this module. This further enhances stability without applying pressure to the Achilles tendon region, particularly the Achilles tendon attachment point.

[0057] The outer layers of the first stabilizing element and the outer layers of the second stabilizing element can be connected to each other via a second connecting element. The second connecting element can extend at least partially along the sole region of the shoe. The second connecting element can be integrally formed with the outer layers of the first and second stabilizing elements.

[0058] The outer layers of the first and second stabilizing elements can be connected to a module of the modular assembly of the outsole. Specifically, as described above, the outer layers can be integrally formed with this module. Furthermore, the outer layers of the first and second stabilizing elements can be connected to the same module of the modular assembly of the outsole. Therefore, the outer layers can be connected to each other via this module. This further enhances stability without applying pressure to the Achilles tendon region, particularly the Achilles tendon attachment point.

[0059] The first stabilizing element may extend at least partially to the lateral ankle region of the foot, while the second stabilizing element may extend at least partially to the medial ankle region of the foot. Therefore, the ankle, i.e., the ankle joint, can be further protected against twisting and / or injury.

[0060] The first and second stabilizing elements can be configured to fasten the calcaneus, thereby preferably avoiding pressure on the Achilles tendon region and / or the Achilles tendon attachment. By fastening the calcaneus, the wearer's heel can be secured inside the shoe. By securing the wearer's heel inside the shoe, instability caused by the heel slipping inside the shoe can be avoided. By avoiding pressure on the Achilles tendon region and / or the Achilles tendon attachment, comfort can be increased, and the risk of irritation or even inflammation can be reduced.

[0061] Furthermore, the first and second stabilizing elements may not cover portions of the upper configured to accommodate the Achilles tendon region and / or attachment site. Therefore, this portion of the upper can remain uncovered by the stabilizing elements. By avoiding coverage of this portion, pressure on the Achilles tendon region and / or attachment site can be avoided. This increases comfort and reduces the risk of irritation or even inflammation.

[0062] The first and second stabilizing elements can be spaced apart by a distance extending along the outer side of the upper and at least partially along the Achilles tendon region. This avoids applying uncomfortable pressure to the Achilles tendon region. In particular, it avoids applying pressure to the attachment point of the stabilizing elements to the Achilles tendon. Therefore, shoe comfort can be increased and / or Achilles tendon irritation can be avoided. Since this distance extends at least partially along the Achilles tendon region and along the outer side of the upper, it should be understood that this distance can be represented by a curve. Furthermore, this distance can be measured from the last point of the first stabilizing element to the last point of the second stabilizing element. This distance can be in the range of 10 mm to 50 mm, preferably in the range of 20 mm to 35 mm, and more preferably in the range of 25 mm to 30 mm. This distance has been shown to provide sufficient stability while avoiding pressure on the Achilles tendon region. This distance can be measured in a plane perpendicular to the extended plane of the outsole.

[0063] Furthermore, at least one of the inner or outer layers of the stabilizing element may be located between the innermost and outermost layers of the upper. Therefore, at least one of the inner or outer layers of the stabilizing element may extend along the outer side of the inner or middle layer of the upper.

[0064] As described above, the first objective of the present invention is achieved, at least in part, through the second aspect of the present invention.

[0065] A second aspect of the invention relates to a shoe comprising:

[0066] vamp

[0067] Outsole; and

[0068] First stabilizing element,

[0069] The first stabilizing element extends upward from the outer side of the outsole toward the step opening on the upper and backward toward the heel area of ​​the shoe (e.g., the heel entry area), wherein the first stabilizing element comprises an inner layer and an outer layer.

[0070] The first stabilizing element extends along the outer side of the shoe upper; and

[0071] Second stabilizing element,

[0072] The second stabilizing element extends upward from the inside of the outsole toward the step opening on the upper and backward toward the heel area of ​​the shoe (e.g., the entry heel area).

[0073] The second stabilizing element comprises an inner layer and an outer layer.

[0074] The second stabilizing element extends along the outer side of the shoe upper, and

[0075] The first and second stabilizing elements are spaced apart by a distance that extends along the outer side of the shoe upper and at least partially along the Achilles tendon region.

[0076] The shoe according to the second aspect of the invention can avoid applying uncomfortable pressure to the Achilles tendon region. In particular, it can avoid applying pressure to the attachment point of the Achilles tendon by the stabilizing elements. Therefore, shoe comfort can be increased and / or Achilles tendon irritation can be avoided. Since this distance extends at least partially along the Achilles tendon region and along the outer side of the shoe upper, it should be understood that this distance can be represented by a curve. Furthermore, this distance can be measured from the last point of the first stabilizing element to the last point of the second stabilizing element. This distance can be in the range of 10 mm to 50 mm, preferably in the range of 20 mm to 35 mm, more preferably in the range of 25 mm to 30 mm. This distance has been shown to provide sufficient stability while avoiding pressure on the Achilles tendon region. This distance can be measured in a plane perpendicular to the extended plane of the outsole. The upper last edge of the first stabilizing element according to the first aspect of the invention can include the last point of the first stabilizing element. The upper last edge of the second stabilizing element according to the first aspect of the invention can include the last point of the second stabilizing element. Furthermore, in an alternative embodiment, this distance can be measured from the upper last edge of the first stabilizing element to the upper last edge of the second stabilizing element.

[0077] In a shoe according to a second aspect of the invention, a line on the outer side of the upper may not be covered by the inner and / or outer layers of the first and / or second stabilizing elements, and this line extends substantially linearly along the Achilles tendon region from the outsole to the step opening. Thus, preferably, the line is neither covered by the first nor the second stabilizing element. By using this line on the outer side of the upper (which extends substantially linearly along the Achilles tendon region from the outsole to the step opening and is not covered by the inner and / or outer layers of the first and / or second stabilizing elements), Achilles tendon mobility can be enhanced, and comfort and / or functionality improved. This is because the effect of the inner and / or outer layers on the stretching and / or relaxation of the Achilles tendon is at least reduced. In particular, because the stretching and / or relaxation of the Achilles tendon may be primarily limited by the upper material.

[0078] It should be understood that the features of the first aspect of the invention can be combined with those of the second aspect of the invention. In particular, the first and / or second stabilizing elements of the second aspect of the invention may include the features of the stabilizing elements of the first aspect of the invention described herein. Therefore, the advantages of the first aspect of the invention can also be applied to the second aspect of the invention, and vice versa.

[0079] As described above, the first objective of the present invention is achieved, at least in part, through the third aspect of the present invention.

[0080] A third aspect of the invention relates to a shoe comprising an upper, an outsole, and a stabilizing element. The stabilizing element extends upward from the outsole toward a step opening in the upper and rearward toward a heel region of the shoe. Furthermore, the stabilizing element comprises an inner layer and an outer layer. Additionally, the stabilizing element extends along the outer side of the upper. Furthermore, the stabilizing element extends at least partially along a midfoot region of the upper. The midfoot region may include a region of the upper corresponding to the metatarsal bones. It should be understood that features of the first aspect of the invention can be applied to the third aspect of the invention. In particular, the stabilizing element of the third aspect of the invention may include features of the stabilizing element of the first aspect of the invention described herein. Therefore, advantages of the first aspect of the invention can also be applied to the third aspect of the invention, and vice versa.

[0081] Furthermore, when wearing the shoe, the final edge of the stabilizing element can be positioned forward from the ankle on one side of the foot (on which the stabilizing element is disposed). Additionally, the stabilizing element can substantially engage the midfoot portion of the wearer's foot. Furthermore, the stabilizing element can extend from the forefoot portion of the shoe. Thus, the proposed shape of the stabilizing element with respect to the first aspect of the invention can be adapted to the shape of the wearer's foot, providing improved stability for the midfoot portion.

[0082] As described above, the second objective of the present invention is achieved, at least in part, through the fourth aspect of the present invention.

[0083] A fourth aspect of the invention relates to a method for manufacturing at least one locking element in a shoe upper. The method includes the steps of: providing a shoe upper, embossing at least one cavity in the shoe upper, and at least partially filling the cavity with foam.

[0084] The locking element according to the invention can be described as an embossed cavity at least partially filled with foam. The locking element can be arranged to hold the wearer's foot securely within the shoe. Specifically, the locking element can be used to lock the wearer's foot downwards within the shoe. Furthermore, the locking element prevents the foot from slipping out of the midfoot area of ​​the shoe.

[0085] The upper can include polymeric materials and / or natural materials, such as leather and / or natural fibers. Furthermore, the upper can include woven materials, knitted materials, materials with unidirectional fibers, and / or non-fiber materials. Uppers can be used in athletic shoes, day shoes, casual shoes, and / or work shoes. Additionally, uppers can be used in soccer boots, running shoes, mountaineering boots (climbing boots), ski boots, cross-country ski boots, and / or basketball shoes. The examples mentioned are not exhaustive.

[0086] The embossing step creates the necessary space for the foam. Furthermore, the embossing step reduces the relaxation and / or stretching of the formed cavities, which are at least partially filled with foam. Therefore, greater stiffness and thus greater stability of the locking element can be achieved. This is particularly important for laceless shoes, such as laceless soccer cleats.

[0087] The embossing step can be performed using an embossing machine. The embossing machine may include a male mold and / or a female mold. Furthermore, the embossing step may include heating the upper and / or at least one mold. Thus, during embossing, the material of the upper can at least partially exceed its glass transition temperature. Furthermore, during embossing, the upper can at least partially melt. Therefore, the shape of the cavity can be permanently formed.

[0088] During the imprinting process, the surfaces adjacent to the cavity can be at least partially melted and / or compressed. This increases the stiffness of the adjacent surfaces, thereby further enhancing the stability of the locking element.

[0089] When a foot is inserted into the shoe upper, the foam within the cavity can be compressed. This compression applies pressure to the foot, preventing it from slipping out of the shoe. The foam can be a polymer foam. Specifically, the foam can be ethylene-vinyl acetate foam, neoprene foam, polyurea foam, polyethylene foam, polystyrene foam, or polyethylene terephthalate foam. Ethylene-vinyl acetate foam and neoprene foam, in particular, offer high durability against environmental conditions.

[0090] The method may also include the step of providing a layer over the cavity, thereby at least partially closing the cavity. Alternatively, the cavity may be completely closed by the layer. This layer may be a fabric layer, such as a mesh fabric layer. Furthermore, the layer may be used to secure and / or protect the foam inside the cavity. This layer prevents the foot, in contact with the shoe upper, from being irritated by the edges of the imprinted cavity.

[0091] The cavity can be embossed onto the inner surface of the shoe upper, such that the shape of the cavity preferably protrudes from the outer side of the shoe upper. Therefore, the foam can protrude from the inner side of the shoe upper. Thus, the foam can apply pressure to the foot that contacts the inner surface of the shoe upper.

[0092] The foam can protrude inwards and / or outwards from the upper relative to the unembossed surface of the cavity adjacent to the upper. Therefore, the foam can have sufficient volume to be compressed, allowing sufficient force to be applied to the foot in contact with the upper.

[0093] The cavity can be embossed onto the outer and / or inner side of the foot on the upper. Therefore, the outer and / or inner side of the foot can be secured to the inside of the upper.

[0094] The cavity may have a cross-section that is at least partially annular, oval, elliptical, triangular, and / or rectangular. The elastic and / or damping characteristics of the locking element can be adjusted through said cross-section. For example, a more progressive elastic characteristic can be obtained through a triangular cross-section than through a rectangular cross-section. This progressive elastic characteristic can provide comfort while offering sufficient protection against slipping off the shoe upper.

[0095] The cavity can be elongated along the upper. Thus, when the foot contacts the upper, the foam inside the cavity can apply force along the upper. Therefore, multiple areas of the foot can be fixed and / or damaged. Furthermore, the force applied to the foot can be distributed. Therefore, the upper can be more comfortable.

[0096] The cavity extends from the ankle area of ​​the upper to the midfoot area. Specifically, the cavity extends from the ankle area to the top midfoot area of ​​the upper. This prevents the foot from slipping out of the midfoot area. Furthermore, it also prevents the foot from slipping out of the ankle area.

[0097] The term "ankle" in this invention can also be referred to as the ankle joint. Furthermore, the term "ankle region" according to the invention generally refers to the area of ​​the foot covered by the upper of the shoe, which includes the ankle (i.e., the ankle joint). The term "medial ankle region" according to the invention can refer to the area of ​​the foot covered by the upper of the shoe, which includes the ligament between the tibia and calcaneus. Furthermore, the term "lateral ankle region" according to the invention can refer to the area of ​​the foot covered by the upper of the shoe, which includes the ligament between the fibula and calcaneus.

[0098] The cavity may include length and width, wherein the ratio of length to width is preferably 5 to 18, more preferably 7 to 16, even more preferably 9 to 14, and most preferably 10 to 12. Thus, this ratio may be defined by a maximum width and / or a maximum length. These ratios provide improved stability while being comfortable for the wearer's feet. In a particularly preferred embodiment, the ratio of length to width is 5 to 8.

[0099] The cavity can extend along 20% ​​to 80%, preferably 25% to 75%, more preferably 30% to 65%, even more preferably 40% to 60%, and most preferably 45% to 55% of the length of the shoe upper. These ranges are found to provide sufficient pressure on the wearer's foot while avoiding excessive cavity space.

[0100] The cross-sectional area and / or width of the cavity can reach their maximum value in the middle portion of the cavity, which is preferably spaced apart from one end of the cavity by a factor of 0.3 to 0.7, preferably 0.35 to 0.65, more preferably 0.4 to 0.6, even more preferably 0.45 to 0.55, and most preferably 0.48 to 0.52, multiplied by the length of the cavity. Thus, the foam of the locking element can apply the highest pressure to the area of ​​the foot located midway between the top midfoot area and the ankle area. Therefore, the area of ​​the foot most prone to slippage receives the greatest pressure. Furthermore, the foot can thus be pressed backward into the heel portion of the upper. This provides further protection against slippage.

[0101] The cross-sectional area and / or width of the cavity can be minimized in the midfoot and / or ankle regions. This allows the pressure on the locking element to gradually decrease towards the ends. Therefore, wearer comfort can be increased. Furthermore, pressure application can be reduced in areas requiring less pressure and / or where pressure discomfort is present, namely the ankle and / or midfoot regions.

[0102] The first cavity can be imprinted on the outer side of the foot on the upper, and the second cavity can be imprinted on the inner side of the foot on the upper. Therefore, the outer and inner sides of the foot can be equally secured to prevent slippage. The second cavity can be positioned higher than the first cavity, i.e., closer to the step opening. Therefore, the positioning of the locking element is adapted to the anatomy of the wearer's foot. It should be understood that the first and second cavities can be at least partially filled with foam.

[0103] Furthermore, the second objective of the invention is achieved at least in part by an upper comprising at least one locking element, wherein the locking element is manufactured by the method described above.

[0104] Furthermore, the second objective of the invention is achieved at least in part by a shoe comprising an upper as described in the preceding paragraph. Thus, the shoe can be an athletic shoe, day shoe, casual shoe, and / or work shoe. Additionally, the shoe can be a soccer cleat, running shoe, mountaineering boot, climbing boot, ski boot, cross-country ski boot, and / or basketball shoe. The examples mentioned are not exhaustive. Attached Figure Description

[0105] The attached diagram is briefly described below:

[0106] Figure 1 An exemplary shoe according to the first aspect of the invention is shown in an outside view;

[0107] Figure 2 An exemplary shoe according to the first and fourth aspects of the invention is shown in a lateral view of the foot;

[0108] Figure 3 A detailed view of the rear of an exemplary shoe according to the first and fourth aspects of the present invention is shown in the lateral view of the foot.

[0109] Figure 4 A detailed view of the rear of an exemplary shoe according to the first and fourth aspects of the present invention is shown in the inner view of the foot.

[0110] Figure 5 A detailed view of an exemplary shoe according to the first and fourth aspects of the present invention is shown in the lateral view of the foot.

[0111] Figure 6 An exemplary method for manufacturing at least one locking element in a shoe upper is described according to a fourth aspect of the present invention;

[0112] Figure 7 Rear views show a second exemplary shoe according to the first, second, and fourth aspects of the present invention;

[0113] Figure 8 A bottom view of a second exemplary shoe according to the first and fourth aspects of the present invention is shown;

[0114] Figure 9 A front view of a third exemplary shoe according to a fourth aspect of the present invention is shown;

[0115] Figure 10 A second exemplary shoe according to the first and fourth aspects of the invention is shown in an inside view of the foot;

[0116] Figure 11 Detailed views of a second exemplary shoe according to the first and fourth aspects of the present invention are shown, and

[0117] Figure 12 Detailed views of a second exemplary shoe according to the first, second, and fourth aspects of the present invention are shown. Detailed Implementation

[0118] Figure 1 An exemplary shoe 1 according to the first aspect of the invention is shown in a lateral view of the foot. Shoe 1 is a soccer shoe. However, it should be understood that the shoe may also be a running shoe, a mountaineering boot, a climbing boot, a ski boot, a cross-country ski boot, and / or a basketball shoe. Furthermore, the shoe may be any other athletic shoe, day shoe, casual shoe, and / or work shoe. The examples mentioned are not exhaustive.

[0119] Figure 1 According to a first aspect of the present invention, a shoe 1 is shown, which includes an upper 2, an outsole 3, and a stabilizing element 10.

[0120] The stabilizing element 10 is used to secure the wearer's heel inside the shoe 1 and stabilize the wearer's ankle. By securing the wearer's heel inside the shoe 1, instability caused by the heel slipping inside the shoe can be avoided. Furthermore, by stabilizing the wearer's ankle, ankle twisting can be prevented.

[0121] The stabilizing element 10 extends upward from the outsole 3 toward the step opening 4 of the upper 2 and backward toward the heel region 5 of the shoe 1. Specifically, the stabilizing element 10 extends backward toward the heel region 5 of the shoe 1. The stabilizing element 10 includes an outer layer 12. Furthermore, the stabilizing element 10 extends along the outer side 6 of the upper 2, thereby contacting the outer side 6 of the upper 2. It should be understood that the outer layer 12 can be attached to the outer side 6 of the upper 2, for example, by heat welding, gluing, and / or stitching. Additionally, the region 13 of the outer side 6 of the upper 2, which is located between the stabilizing element 10 and the outsole 3, is not covered by the stabilizing element 10.

[0122] The area 13 not covered by the stabilizing element 10 avoids or at least reduces pressure on the Achilles tendon area. Specifically, this area prevents the stabilizing element 10 from applying pressure to the Achilles tendon insertion. Therefore, the comfort of the shoe 1 can be increased and / or irritation to the Achilles tendon can be avoided.

[0123] like Figure 1Further depicted, according to a first aspect of the invention, the outer layer 12 of the stabilizing element 10 is integrally formed with the outsole 3 of the shoe 1. By integrally forming the outer layer with the outsole, the outer layer can be provided with higher pretension. Therefore, higher pressure can be applied to the wearer's heel area. Furthermore, the necessary manufacturing steps can be reduced. It should be understood that in Figure 1 In this context, the "outer layer" can also be more generally referred to as the "layer," since the stabilizing element consists of only one layer.

[0124] Figure 2 An exemplary shoe 1 according to the first and fourth aspects of the invention is shown in a lateral view of the foot. Shoe 1 is a laceless soccer shoe. However, it should be understood that the shoe can also be a running shoe, mountaineering boot, climbing boot, ski boot, cross-country ski boot, and / or basketball shoe. Furthermore, the shoe can be any other athletic shoe, day shoe, casual shoe, and / or work shoe. The examples mentioned are not exhaustive.

[0125] Figure 2 According to a first aspect of the present invention, a shoe 1 is shown, which includes an upper 2, an outsole 3, and a stabilizing element 10.

[0126] The stabilizing element 10 is used to secure the wearer's heel inside the shoe 1 and stabilize the wearer's ankle. By securing the wearer's heel inside the shoe 1, instability caused by the heel slipping inside the shoe can be avoided. Furthermore, by stabilizing the wearer's ankle, ankle twisting can be prevented.

[0127] The stabilizing element 10 extends upward from the outsole 3 toward the step opening 4 of the upper 2 and backward toward the heel area 5 of the shoe 1, i.e., into the heel area 5 of the shoe 1. The stabilizing element 10 includes an inner layer 11 and an outer layer 12. Furthermore, the stabilizing element 10 extends along the outer side 6 of the upper 2. Additionally, a region 13 on the outer side 6 of the upper 2 is not covered by the stabilizing element 10; this region 13 is located between the stabilizing element 10 and the outsole 3. The inner layer 11 and the outer layer 12 contain different materials.

[0128] The area 13 not covered by the stabilizing element 10 avoids or at least reduces pressure on the Achilles tendon region. In particular, the area (13) prevents the stabilizing element 10 from applying pressure to the Achilles tendon attachment site. Therefore, the comfort of the shoe 1 can be increased and / or irritation to the Achilles tendon can be avoided.

[0129] The area 13 on the outer side 6 of the upper 2, not covered by the stabilizing element 10 and located between the stabilizing element 10 and the outsole 3, continuously transitions into another area 18 on the outer side 6 of the upper 2, also not covered by the stabilizing element 10. Thus, as, for example, in Figure 7 and Figure 11As described in more detail, the additional region 18 extends into a portion of the upper 2, configured to receive the Achilles tendon region and / or the Achilles tendon attachment, thereby extending from the lateral side of the foot to the medial side of the shoe 1. The additional region 18 avoids applying uncomfortable pressure to the Achilles tendon region. Specifically, the additional region 18 prevents the stabilizing element 10 from applying pressure to the Achilles tendon attachment. Furthermore, the flexibility of the upper 2 is not impeded by the stabilizing element 10 at the Achilles tendon attachment and / or the Achilles tendon region. Therefore, the comfort of the shoe 1 can be increased and / or irritation of the Achilles tendon can be avoided.

[0130] Using different materials allows for the separation of functions. The inner layer preferably contains a material with higher stiffness and / or higher strength than the outer layer. Furthermore, the outer layer may contain a material with higher elasticity than the inner layer. Therefore, the inner layer provides stiffness and / or strength, while the outer layer fastens the inner layer to the upper. Thus, the stabilizing element can be securely fastened to the wearer's heel and / or ankle, thereby increasing stability. Furthermore, the weight of the stabilizing element can be reduced due to the specific use of materials. Additionally, the inner layer can be adapted to the characteristics of the wearer's foot, while the outer layer can remain unchanged. Therefore, due to the use of different materials and the separation of functions in the stabilizing element, modification work can be reduced.

[0131] Further according to the first aspect of the invention, Figure 2 The shoe 1 includes two stabilizing elements 10 and 15, wherein the first stabilizing element 10 is disposed on the outer side of the foot of the shoe 1, and the second stabilizing element 15 is disposed on the inner side of the foot of the shoe 1. However, the second stabilizing element 15 is located on... Figure 2 It is hidden in the middle, but Figure 4 As shown in the diagram. The first stabilizing element 10 extends at least partially into the lateral ankle region 7a of the foot. The first stabilizing element 10 and the second stabilizing element 15 are configured to engage the calcaneus, thereby preventing pressure from being applied to the Achilles tendon attachment site.

[0132] Figure 2 According to a fourth aspect of the invention, a shoe 1 including an upper 2 is shown, wherein the upper 2 includes a locking element 20. The locking element 20 is based on... Figure 6 Method 100 of the depiction is used for manufacturing.

[0133] Figure 3 A detailed view of the rear of an exemplary shoe according to the first and fourth aspects of the present invention is shown in the lateral view of the foot.

[0134] Figure 3According to a first aspect of the invention, the shape of the stabilizing element 10 is defined by at least two straight edges 14a, 14b extending upward along the outer side 6 of the upper 2 toward the step opening and backward toward the heel region 5. Thus, these two edges 14a, 14b have a length of at least 15 mm. By defining the shape of the stabilizing element 10 by the two straight edges 14a, 14b, it is ensured that no pressure or only reduced pressure is applied to the Achilles tendon attachment site.

[0135] like Figure 3 Further depicted, according to a first aspect of the invention, the outer layer 12 of the stabilizing element 10 is integrally formed with the outsole 3 of the shoe 1. By integrally forming the outer layer with the outsole, the outer layer can be provided with a higher pretension relative to the inner layer. Therefore, higher pressure can be applied to the wearer's heel area. In addition, the necessary manufacturing steps can be reduced.

[0136] The shape of the inner layer 11 corresponds to the shape of the outer layer 12. This allows the load to be continuously transferred between the inner and outer layers, thus achieving a uniform stress distribution. Therefore, material damage due to stress concentration can be avoided. Furthermore, the inner layer 11 has a larger profile than the outer layer 12. Thus, the inner layer is used to cover the areas of the upper that should be stabilized, while the outer layer is used to press the inner layer into the interior of the shoe.

[0137] The inner layer 11 preferably includes a composite layer, wherein the composite layer is preferably a fiber-reinforced layer.

[0138] Figure 4 A detailed view of the rear of an exemplary shoe according to the first and fourth aspects of the invention is shown in the inner view of the foot.

[0139] Figure 4 According to a first aspect of the invention, a stabilizing element 15 is shown that extends at least partially into the medial ankle region 7b of the foot. The description above regarding the stabilizing element 10 disposed on the lateral side of the upper is similarly applicable to the stabilizing element 15 disposed on the medial side of the upper. However, in other embodiments, the lateral and medial stabilizing elements may differ, for example, in terms of their size, shape, material, etc.

[0140] Figure 5 A detailed view of an exemplary shoe according to the first and fourth aspects of the present invention is shown in the lateral view of the foot.

[0141] Figure 5 The fourth aspect of the invention shows, as follows Figure 2 The depiction shows details of a shoe 1, which includes an upper 2, wherein the upper 2 includes a locking element 20. The locking element 20 is based on... Figure 6The method 100 depicted is used for manufacturing. The method 100 includes the steps of: providing an upper 2 (110), imprinting at least one cavity 21 (120) into the upper 2, and filling the cavity 21 (130) at least partially with foam. Furthermore, the method 100 may also include the step of providing 140 layers onto the cavity 21, whereby the cavity 21 is at least partially closed.

[0142] As depicted, cavity 21 can be embossed 120 onto the inner surface 30 of upper 2, such that the shape of cavity 21 protrudes from the outer surface 6 of upper 2. Thus, the concealed foam can protrude inward and / or outward from upper 2 relative to the surface 23 of upper 2 adjacent to the unembossed cavity 21.

[0143] Cavity 21 is imprinted on the outer side of the foot of the upper 2 and has a cross-section that is at least partially triangular. Furthermore, cavity 21 is elongated along the upper 2. Thus, cavity 21 extends from the ankle region 7a of the upper 2 to the midfoot region 8 of the upper 2. Specifically, in Figure 5 In the middle, cavity 21 extends from the outer ankle region 7a, while... Figure 4 In the shoe, cavity 21 extends from the inner ankle region 7b. Thus, cavity 21 extends along 30% to 65% of the length of the upper 2. This range provides sufficient pressure to the wearer's foot while avoiding excessive cavity space.

[0144] Furthermore, the cross-sectional area and width of cavity 21 reach their maximum values ​​in the middle portion of cavity 21, which is spaced apart from one end of cavity 21 by a factor of 0.45 to 0.55 times the length of cavity 21. Thus, the foam of the locking element applies the highest pressure to the area of ​​the foot located midway between the top midfoot and ankle areas. Therefore, the area of ​​the foot most prone to slipping receives the greatest pressure. Additionally, the foot can be pressed backward into the heel portion within the upper. This provides further protection against slipping.

[0145] Furthermore, the cross-sectional area and width of cavity 21 are minimized in the midfoot region 8 and ankle regions 7a, 7b. This allows the pressure on the locking element to gradually decrease towards the ends. Therefore, wearer comfort can be increased.

[0146] like Figure 4 and 5 As shown, the first cavity 21 is imprinted on the outer side of the foot of the shoe upper 2, and the second cavity 26 is imprinted on the inner side of the foot of the shoe upper 2. Therefore, the outer and inner sides of the foot are equally fixed to prevent slippage.

[0147] Figure 6An exemplary method 100 for manufacturing at least one locking element 20 in a shoe upper 2 according to a fourth aspect of the invention is described. Method 100 includes the steps of: providing the shoe upper 2 110; embossing at least one cavity 21 120 in the shoe upper 2; and filling the cavity 21 at least partially with foam 130. Furthermore, method 100 may also include the step of providing 140 layers over the cavity 21, whereby the cavity 21 is at least partially closed.

[0148] Figure 7 A rear view of a second exemplary shoe 1 according to the first, second, and fourth aspects of the invention is shown. Thus, the first stabilizing element 10 and the second stabilizing element 15 are spaced apart by a distance 30, which extends at least partially along the Achilles tendon region and along the outer side of the upper 2. This avoids applying uncomfortable pressure to the Achilles tendon region. In particular, it avoids applying pressure to the attachment point of the Achilles tendon by the stabilizing elements 10, 15. Therefore, the comfort of the shoe 1 can be increased and / or irritation to the Achilles tendon can be avoided. Figure 7 As shown, the distance 30 is measured from the last point of the first stabilizing element 10 to the last point of the second stabilizing element 15.

[0149] Furthermore, according to a second aspect of the invention, Figure 7 A second exemplary shoe 1 is shown, comprising an upper 2, an outsole 3, a first stabilizing element 10, and a second stabilizing element 15. The first stabilizing element 10 extends upward from the outer side of the outsole 3 toward the step opening 4 of the upper 2 and extends rearward into the heel region 5 of the shoe 1. Furthermore, the first stabilizing element 10 includes an inner layer 11 and an outer layer 12. Additionally, the first stabilizing element 10 extends along the outer side 6 of the upper 2. The second stabilizing element 15 extends upward from the inner side of the outsole 3 toward the step opening 4 of the upper 2 and extends rearward into the heel region 5 of the shoe 1. Furthermore, the second stabilizing element 15 includes an inner layer 16 and an outer layer 17. Additionally, the second stabilizing element 15 extends along the outer side 6 of the upper 2. The first stabilizing element 10 and the second stabilizing element 15 are spaced apart by a distance 30 extending along the outer side 6 of the upper 2 and at least partially along the Achilles tendon region.

[0150] Although only Figure 7 and 12 The first and second stabilizing elements proposed in the second aspect of the invention are depicted, but it should be understood that... Figure 8 , 10 The features described in section 11 can also form part of the second aspect of the invention. This is because... Figure 7 , 8 Figures 10-12 all depict a second exemplary shoe. Furthermore, it should be understood that features of the first exemplary shoe may also form part of the second aspect of the invention. Figure 2 and 4As shown, the first exemplary shoe also includes a first stabilizing element and a second stabilizing element as proposed in the second aspect of the invention.

[0151] Figure 8 A bottom view of a second exemplary shoe 1 according to the first and fourth aspects of the invention is shown. As shown, the outsole 3 includes an embedded carbon sole insert 40. The carbon sole insert 40 can be referred to as a composite module as described above. Thus, the inner layers of the stabilizing elements 10, 15 can be connected to each other via the carbon sole insert 40, i.e., the composite module. The same applies to the outer layers. Therefore, stability can be further improved without applying pressure to the Achilles tendon region, particularly the Achilles tendon attachment site.

[0152] Figure 9 A front view of a third exemplary shoe 1 according to a fourth aspect of the present invention is shown. As shown, a first cavity 21 is imprinted on the outer side of the foot of the upper 2, and a second cavity 26 is imprinted on the inner side of the foot of the upper 2. Thus, the outer and inner sides of the foot can be equally secured to prevent slippage. As further shown, the second cavity 26 can be positioned higher than the first cavity 21, i.e., closer to the step opening 4. Therefore, the positioning of the locking elements 20, 25 is adapted to the anatomy of the wearer's foot.

[0153] Figure 10 A second exemplary shoe according to the first and fourth aspects of the invention is shown in a view of the inside of the foot.

[0154] According to a first aspect of the invention, the inner layer 16 of the second stabilizing element 15 extends beyond the outer layer 17 of the second stabilizing element 15. Specifically, the inner layer 16 extends rearward toward the Achilles tendon region and upward toward the step opening beyond the outer layer 17. Therefore, the inner layer can increase the support of the stabilizing element for the foot. Furthermore, the inner layer 16 extends forward toward the toe region of the foot beyond the outer layer 17. Thus, the outer layer 17 can be used to press the inner layer 16 into the interior of the shoe 1. Therefore, by adjusting the inner layer 16, the area of ​​the upper 2 that should be stabilized can be easily modified, while the outer layer 17 can remain unchanged.

[0155] Furthermore, according to a first aspect of the invention, the shape of the inner layer 16 of the second stabilizing element 15 corresponds to the shape of the outer layer 17 of the second stabilizing element 15. Specifically, the shape of the outer layer 17 is located within the inner layer, and the three edges of the inner and outer layers are substantially parallel. This allows the load to be continuously transferred between the inner and outer layers, thereby achieving a uniform stress distribution.

[0156] According to a fourth aspect of the invention, the second cavity 26 imprinted by the second locking element 25 has a cross-section that is at least partially annular. Figure 2-5 Compared to the essentially triangular cross-section depicted in the example, fewer progressive elastic features can be obtained. Fewer progressive elastic features can provide improved comfort.

[0157] Figure 11 Detailed views of a second exemplary shoe 1 according to the first and fourth aspects of the invention are shown. As depicted, the outer layer 17 of the second stabilizing element 15 includes a varying thickness. In particular, steps 51 in the surface of the outer layer 17 separate portions of the outer layer 17 with different thicknesses. The steps 51 are discontinuous variations in the surface of the outer layer 17. As further shown, the outer layer 17 includes reinforcing ribs 50, which include the steps 51. Figure 12 As shown, the first stabilizing element 10, like the second stabilizing element 15, also includes reinforcing ribs 50.

[0158] Figure 12 Detailed views of a second exemplary shoe according to the first, second, and fourth aspects of the invention are shown. A reinforcing rib 50 of the first stabilizing element 10 extends from the outsole 3 along the outer layer 12 of the stabilizing element 10. The outer layer 12 of the stabilizing element is integrally formed with the outsole or a component of the outsole. Furthermore, the reinforcing rib 50 extends substantially along the entire length of the stabilizing element 10. The reinforcing rib 50 also extends at least partially along the outsole 3, wherein this aspect also... Figure 10 As shown in the image.

[0159] List of reference numerals in the attached diagram:

[0160] 1 shoe

[0161] 2. Shoe upper

[0162] 3 Outsole

[0163] 4. Step into the opening

[0164] 5. Heel area

[0165] 6. Outer side of the shoe upper

[0166] 7a Outer ankle area

[0167] 7b Inner ankle area

[0168] 10 First stabilizing element

[0169] 11 Inner layer of the first stabilizing element

[0170] 12 Outer layer of the first stabilizing element

[0171] 13. Outer area of ​​the shoe upper

[0172] 14a, 14b straight edges

[0173] 15 Second stabilizing element

[0174] 16 Inner layer of the second stabilizing element

[0175] 17. Outer layer of the second stabilizing element

[0176] 18. Other areas on the outer side of the shoe upper

[0177] 20 Locking elements

[0178] 21 First cavity

[0179] 23 Unembossed surfaces

[0180] 25 Second locking element

[0181] 26 Second cavity

[0182] 30 distance

[0183] 40 Carbon fiber sole insert

[0184] 50 Reinforcing Ribs

[0185] 51 steps

[0186] 100 Method for manufacturing at least one locking element in a shoe upper

[0187] 110 provides shoe uppers

[0188] 120. Embossed at least one cavity in the shoe upper.

[0189] 130 The cavity is at least partially filled with foam.

[0190] 140 Provides a layer on the cavity according to an embodiment of the fourth aspect of the invention:

[0191] 1. A method 100 for manufacturing at least one locking element 20, 25 in a shoe upper 2, wherein the method 100 comprises the following steps:

[0192] a. Provides 110 shoe uppers 2,

[0193] b. Imprint at least one cavity 21 120 in the upper 2, and

[0194] c. Fill 130 cavity 21 at least partially with foam.

[0195] 2. The method 100 according to embodiment 1, wherein method 100 further includes the step of

[0196] d. Provide 140 layers on cavity 21, thereby at least partially sealing cavity 21.

[0197] 3. According to method 100 of one of the foregoing embodiments, the cavity 21 is embossed 120 on the inner surface of the upper 2 such that the shape of the cavity 21 preferably protrudes on the outer side 6 of the upper 2.

[0198] 4. The method 100 according to one of the foregoing embodiments, wherein the foam protrudes inward and / or outward from the upper 2 relative to the unimprinted surface 23 of the adjacent cavity 21 of the upper 2.

[0199] 5. Method 100 according to one of the foregoing embodiments, wherein the cavity 21 is imprinted on the outer side and / or inner side of the foot of the shoe upper 2.

[0200] 6. The method 100 according to one of the foregoing embodiments, wherein the cavity 21 has a cross-section that is at least partially annular, oval, elliptical, triangular and / or rectangular.

[0201] 7. Method 100 according to one of the foregoing embodiments, wherein the cavity 21 is elongated along the upper 2.

[0202] 8. The method 100 according to the previous embodiment, wherein the cavity 21 extends from the ankle regions 7a, 7b of the upper 2 to the midfoot region 8 of the upper 2.

[0203] 9. Method 100 according to one of embodiments 7-8, wherein the cavity 21 includes a length and a width, wherein the ratio of length to width is preferably 5 to 18, more preferably 7 to 16, even more preferably 9 to 14, and most preferably 10 to 12.

[0204] 10. Method 100 according to one of embodiments 7-9, wherein the cavity 21 extends along the length of the upper 2 for 20% to 80%, preferably 25% to 75%, more preferably 30% to 65%, even more preferably 40% to 60%, and most preferably 45% to 55%.

[0205] 11. Method 100 according to one of embodiments 9-10, wherein the cross-sectional area and / or the width of the cavity 21 reaches a maximum value in the middle portion of the cavity 21, the middle portion preferably being spaced apart from one end of the cavity 21 by a coefficient of 0.3 to 0.7, preferably 0.35 to 0.65, more preferably 0.4 to 0.6, even more preferably 0.45 to 0.55, and most preferably 0.48 to 0.52.

[0206] 12. Method 100 according to one of embodiments 9-11, wherein the cross-sectional area of ​​cavity 21 and / or the width of cavity 21 are minimized in the midfoot region 8 and / or ankle regions 7a, 7b.

[0207] 13. The method 100 according to one of the foregoing embodiments, wherein the first cavity 21 is imprinted on the outer side of the foot of the shoe upper 2, and the second cavity 26 is imprinted on the inner side of the foot of the shoe upper 2.

[0208] 14. An upper 2 comprising at least one locking element 20, wherein the locking element 20 is manufactured by method 100 according to one of embodiments 1-13.

[0209] 15. A shoe 1 comprising an upper 2 according to embodiment 14.

Claims

1. A shoe (1), comprising: Shoe upper (2) The sole, which includes the outsole (3); and Stabilizing element (10) The stabilizing element (10) extends upward from the outsole (3) toward the step opening (4) of the upper (2) and backward toward the heel area (5) of the shoe (1). The stabilizing element (10) is configured to fasten the calcaneus and press it against the sole of the shoe. The stabilizing element (10) includes an outer layer (12). The stabilizing element (10) extends along the outer side (6) of the upper (2). In this case, a region (13) of the outer side (6) of the upper (2) is not covered by the stabilizing element (10), and thus the region (13) is located between the stabilizing element (10) and the outsole (3). The region (13) transitions continuously into another region (18) of the outer side (6) of the upper (2) that is not covered by the stabilizing element (10), whereby the other region (18) extends into the following portion of the upper (2) configured to accommodate the Achilles tendon region and the Achilles tendon attachment site, and The outer layer (12) of the stabilizing element (10) is integrally formed with the outsole (3) of the shoe (1).

2. The shoe (1) according to claim 1, wherein, The additional region (18) extends from the outer side of the foot of the shoe (1) to the inner side of the foot of the shoe (1).

3. The shoe (1) according to claim 1, wherein, The stabilizing element (10) includes an inner layer (11).

4. The shoe (1) according to claim 3, wherein, The inner layer (11) and the outer layer (12) contain different materials.

5. A shoe (1), comprising: Shoe upper (2) The sole, which includes the outsole (3); and Stabilizing element (10) The stabilizing element (10) extends upward from the outsole (3) toward the step opening (4) of the upper (2) and backward toward the heel area (5) of the shoe (1). The stabilizing element (10) is configured to fasten the calcaneus and press it against the sole of the shoe, without applying pressure to the Achilles tendon area and the Achilles tendon attachment point. The stabilizing element (10) includes an inner layer (11) and an outer layer (12). The inner layer (11) and the outer layer (12) contain different materials, and The stabilizing element (10) extends along the outer side (6) of the upper (2).

6. The shoe (1) according to claim 5, wherein, The outer layer (12) of the stabilizing element (10) is integrally formed with the outsole (3) of the shoe (1).

7. The shoe (1) according to claim 5, wherein, A region (13) of the outer side (6) of the upper (2) is not covered by the stabilizing element (10), thereby the region (13) is located between the stabilizing element (10) and the outsole (3).

8. The shoe (1) according to claim 7, wherein, The region (13) transitions continuously to another region (18) of the outer side (6) of the upper (2) that is not covered by the stabilizing element (10), whereby the other region (18) extends into the following portion of the upper (2) configured to accommodate the Achilles tendon region and the Achilles tendon attachment.

9. The shoe (1) according to claim 8, wherein, The additional region (18) extends from the outer side of the foot of the shoe (1) to the inner side of the foot of the shoe (1).

10. The shoe (1) according to any one of claims 1-4 and 7-9, wherein, The area (13) is at least 100 mm in size. 2 .

11. The shoe (1) according to claim 10, wherein, The area (13) is at least 150 mm in size. 2 .

12. The shoe (1) according to claim 11, wherein, The area (13) has a size of at least 200 mm. 2 .

13. The shoe (1) according to claim 12, wherein, The area (13) is at least 250 mm in size. 2 .

14. The shoe (1) according to claim 13, wherein, The area (13) has a size of at least 300 mm. 2 .

15. The shoe (1) according to any one of claims 1 or 5, wherein, The stabilizing element (10) includes airfoil, parallelogram, trapezoid, ellipse and / or rectangle.

16. The shoe (1) according to claim 1 or 5, wherein, The shape of the stabilizing element (10) is defined by at least two straight edges (14a, 14b) that extend upward toward the step opening (4) and backward toward the heel area (5) along the outer side (6) of the upper (2).

17. The shoe (1) according to claim 16, wherein, The length of the two straight edges (14a, 14b) is at least 10 mm.

18. The shoe (1) according to claim 17, wherein, The length of the two straight edges (14a, 14b) is at least 15 mm.

19. The shoe (1) according to claim 18, wherein, The length of the two straight edges (14a, 14b) is at least 20 mm.

20. The shoe (1) according to claim 19, wherein, The length of the two straight edges (14a, 14b) is at least 25 mm.

21. The shoe (1) according to claim 1 or 5, wherein, The outer layer (12) has a thickness of 0.01 mm to 3 mm.

22. The shoe (1) according to claim 21, wherein, The outer layer (12) has a thickness of 0.1 mm to 2 mm.

23. The shoe (1) according to claim 22, wherein, The outer layer (12) has a thickness of 0.2 mm to 1 mm.

24. The shoe (1) according to claim 23, wherein, The outer layer (12) has a thickness of 0.25 mm to 0.5 mm.

25. The shoe (1) according to claim 24, wherein, The outer layer (12) has a thickness of 0.28 mm to 0.32 mm.

26. The shoe (1) according to claim 3 or 5, wherein, The inner layer (11) has a thickness of 0.01 mm to 3 mm.

27. The shoe (1) according to claim 26, wherein, The inner layer (11) has a thickness of 0.1 mm to 2 mm.

28. The shoe (1) according to claim 27, wherein, The inner layer (11) has a thickness of 0.2 mm to 1 mm.

29. The shoe (1) according to claim 28, wherein, The inner layer (11) has a thickness of 0.25 mm to 0.5 mm.

30. The shoe (1) according to claim 29, wherein, The inner layer (11) has a thickness of 0.28 mm to 0.32 mm.

31. The shoe (1) according to claim 3 or 5, wherein, The shape of the inner layer (11) corresponds to the shape of the outer layer (12).

32. The shoe (1) according to claim 3 or 5, wherein, The inner layer (11) extends beyond the outer layer (12).

33. The shoe (1) according to claim 3 or 5, wherein, The inner layer (11) includes a composite layer.

34. The shoe (1) according to claim 33, wherein, The composite layer is a fiber-reinforced layer.

35. The shoe (1) according to claim 34, wherein, The composite layer includes a carbon fiber reinforcement layer.

36. The shoe (1) according to claim 1 or 5, wherein, The outer layer (12) includes reinforcing ribs (50).

37. The shoe (1) according to claim 36, wherein, The reinforcing ribs extend from the outer bottom along the outer layer (12) of the stabilizing element (10).

38. The shoe (1) according to claim 1 or 5, wherein, The outer layer (12) includes a composite layer.

39. The shoe (1) according to claim 38, wherein, The outer layer (12) extends from the composite module of the outer bottom (3).

40. The shoe (1) according to claim 3 or 5, wherein, The line on the outer side (6) of the upper (2) is not covered by the inner layer (11) and / or the outer layer (12), and the line extends substantially straight along the Achilles tendon region from the outsole (3) to the step opening (4).

41. The shoe (1) according to claim 40, wherein, The line is not covered by the stabilizing element (10).

42. The shoe (1) according to claim 1 or 5, wherein, The shoe (1) includes two of the aforementioned stabilizing elements (10, 15).

43. The shoe (1) according to claim 42, wherein, The first stabilizing element (10) is arranged on the outside of the foot of the shoe (1).

44. The shoe (1) according to claim 43, wherein, The second stabilizing element (15) is arranged on the inside of the foot of the shoe (1).

45. The shoe (1) according to claim 44, wherein, The first stabilizing element (10) and the second stabilizing element (15) are configured to fasten the calcaneus so as not to apply pressure to the Achilles tendon region and the Achilles tendon attachment.

46. ​​The shoe (1) according to claim 44, wherein, The first stabilizing element (10) and the second stabilizing element (15) do not cover the following portion of the upper (2), which is configured to accommodate the Achilles tendon region and the Achilles tendon attachment.

47. The shoe (1) according to claim 44, wherein, The first stabilizing element (10) and the second stabilizing element (15) are spaced apart by a distance (30) that extends along the outer side (6) of the upper (2) and at least partially along the Achilles tendon region.

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