Method for manufacturing a footwear article and a mold for manufacturing a footwear article

Abstract

The present disclosure relates to a mold (100) for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, the mold comprising: a.) a first mold part (105a) and a second mold part (105b) which are preferably detachably connectable to one another; b.) a stud cavity (130, 130a, 130b, 130c, 130d) wherein the stud cavity (130, 130a, 130b, 130c, 130d) is configured to receive a first stud (150, 150a, 150b, 150c); c.) wherein the tunnel cavity (130, 130a, 130b, 130c, 130d) is configured to accommodate a second tunnel (150, 150a, 150b, 150c) which is different from the first tunnel (150, 150a, 150b, 150c).

Description

1. Technical field

[0001] The present invention relates to a mold for manufacturing a footwear article, in particular a sports shoe such as a soccer, American football, or rugby shoe. The present invention also relates to a corresponding method for manufacturing a footwear article, in particular a sports shoe such as a soccer shoe. The present invention also relates to a footwear article, in particular a sports shoe such as a soccer shoe, manufactured by the method.

[0002] In particular, the present invention relates to a modular shape design that allows the accommodation of different studs, especially studs with shapes for different types of sports shoes intended for use on different playing surfaces, such as at least firm ground, artificial ground (including different generations of artificial ground, e.g. 2G, 3G or 4G) and hard ground. 2. State of the art

[0003] Footwear is generally well-known and serves various purposes and uses. For example, it can be designed to provide benefits for sports, daily work, leisure, or similar activities. Particularly in sports, footwear has the potential to provide advantageous performance characteristics, thus enhancing the wearer's overall performance during athletic activity.

[0004] Footwear provides ground contact and is often made, at least in part, from a durable and wear-resistant material. In some cases, an outsole is either integral to the rest of the shoe or provided separately. The outsole may be equipped with features to improve traction on the ground. For example, the outsole may have one or more studs (also known as cleats), spikes, or similar features. Studs can be important for soccer or similar sports. Spikes can be important for running shoes used for track and field events.

[0005] In the footwear sector, particularly in the area of ​​sports shoes, such as those used in football (soccer), it is common practice to design and manufacture shoes with studs optimized for specific playing surfaces. These surfaces include, but are not limited to, firm ground (FG), artificial ground (AG), and hard ground (HG). Each of these playing conditions requires a specific stud configuration to provide maximum performance and safety for the athlete.

[0006] Traditionally, shoe manufacturers design and produce separate molds for shoe soles and cleats, tailored to each surface type. This requires opening multiple mold sets to accommodate the differences in cleat shape and size required for each incline type (e.g., including but not limited to FG, AG, and HG). Each mold set includes base molds and cleat molds, which can be expensive and time-consuming to design, develop, and manufacture.

[0007] For example, the following prior art documents may be mentioned in connection with the present disclosure.

[0008] The prior art document US 4,644,672 A relates to a sports shoe sole with studs that have replaceable gripping elements designed so that the gripping elements can be easily replaced without reducing the stability of the shoe sole or causing premature wear. For this purpose, stud-shaped retaining elements are provided with a flange by which they are molded into the shoe sole. The shoe sole itself, or a section associated with it, forms at least one raised area coaxial with the stud-shaped retaining elements, surrounding at least one recess between these raised areas and the stud-shaped retaining elements. Finally, the respective recesses engage with appropriately shaped projecting elements of the gripping elements or gripping element components, which are in the form of caps.

[0009] Prior art document EP 3 170 653 B1 relates to a mold for producing studded sole structures for footwear articles, comprising: a first mold component that includes a first section of a mold cavity, wherein the first section of the mold cavity includes: a first area for forming a first section of a footwear article to be formed, the first area including a first mold surface exposed in the mold cavity, which is made of a first material having a first thermal conductivity, and a second area including a stud receptacle for receiving a stud to be formed into the footwear article, the stud receptacle including a second surface exposed in the mold cavity to engage with the stud to be formed, the second surface being made of a second material.which has a second thermal conductivity, and wherein the second thermal conductivity is lower than the first thermal conductivity; and a second mold component that includes a second section of the mold cavity to at least partially cover the first section of the mold cavity.

[0010] Prior art document US 3,187,073 A relates to a method for manufacturing a waterproof shoe having points projecting downwards from its base, comprising the following steps: preparing a mold whose inner surface is a replica, but inverted, of the outer surface of the shoe to be manufactured, the base of the mold having cavities shaped to match the desired points; providing point assemblies, each comprising a point element and a buttress element, and an anchoring element spaced apart from the buttress element; placing the point element of each assembly in one of the cavities in the base of the mold; filling the mold with liquid plastic and causing the plastic to gel upon contact with the inner surface of the mold wall to provide a layer of the desired thickness; pouring out excess plastic; and introducing more liquid plastic.to form a second layer only in the bottom section of the mold, and to cause sufficient of the latter plastic to gel to embed the anchoring element of the toe assembly, pouring out excess plastic, allowing the plastic to fully harden within the mold, and removing the shoe thus formed from the mold, thereby providing a toe shoe whose upper and / or lower layer of the sole consists of plastic.

[0011] Prior art document US 8,206,630 B2 relates to a method for producing a floor having at least one tunnel, wherein the tunnel is arranged on the underside of the floor, the method comprising: a) producing at least one tunnel, wherein the tunnel has a tunnel body that can be connected to the floor, wherein at least one extension is arranged on the tunnel body that extends to the ground during intended use, and wherein the vertically projecting portion of the end of the extension facing the ground is at least partially located outside the vertically projecting portion of the tunnel body; b) inserting the tunnel into a retaining element, wherein the retaining element has a congruent receiving space for at least a portion of the tunnel body and for the extension;c) Placing the stud together with the retaining part in a recess in an injection mold consisting of at least two parts, such that part of the stud protrudes into the cavity formed between the parts of the injection mold; d) Injection molding at least part of the sole by injecting molten plastic into the cavity of the injection mold, so that part of the stud is coated by the molten plastic; e) Demolding the injection-molded sole together with the coated stud and the retaining part; f) Removing the retaining part from the stud.

[0012] The prior art document US 3,452,378 A relates to a method for manufacturing golf shoes, comprising the steps of: enclosing the sole of a finished shoe in a mold having a group of hollow base studs located positively in the mold cavity on pre-arranged mold pins projecting therein, and then injecting PVC into the cavity to enclose the base studs while preventing the PVC from entering the bases, and forming an outsole that is bonded to the shoe sole and encloses the base studs while they are thus located.

[0013] While the above documents claim to represent an improvement over the previously known state of the art, the solutions proposed in the documents still have some shortcomings.

[0014] In particular, the costs associated with producing individual mold sets for different cleat shapes are considerable. Furthermore, these costs can be compounded by the extensive labor required for the design and construction of the molds. An increasing demand for new molds, often associated with developments in the footwear industry, can therefore represent an immense burden for manufacturers.

[0015] Consequently, there is a need for a more efficient and cost-effective solution for the production of footwear, especially studded footwear for different types of playing fields, without the extensive investment in multiple, individual molds.

[0016] Against this background, it is an object of the present invention to provide an improved mold for manufacturing a footwear article. It is a further object of the present invention to provide a corresponding method for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot. 3. Summary of the invention

[0017] The aforementioned problems are at least partially solved by the subject matter of the independent claims. Preferred embodiments are the subject matter of the dependent claims, and other suitable aspects of the present invention are described by the overall disclosure of this application. It should be noted that the headings in this disclosure are provided solely to aid in maintaining an overview while reading. The headings do not imply that features of the respective embodiments cannot be combined. Mold for manufacturing a sole for a footwear item

[0018] In a first aspect, the problems of the present disclosure are at least partially solved by a mold for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, the mold comprising: a) a first mold part and a second mold part, which are preferably detachably connectable to one another; b) a stud cavity, wherein the stud cavity is configured to receive a first stud; c) wherein the stud cavity is configured to receive a second stud which is different from the first stud.

[0019] In this way, the form addresses the challenges and problems mentioned in connection with the discussion of the state of the art. In particular, a modular form design is introduced that allows for the provision of various stave sections, such as stave sections that differ from one another, for example, in their shapes. By integrating the function for exchanging stave sections within the form, the proposed form significantly reduces the labor intensity associated with opening numerous molds and the associated high investment costs of currently known forms.

[0020] The form proposed here may stem from an initiative to consolidate the number of molds that need to be designed and built, thereby increasing workload efficiency and minimizing overall business investment. In particular, the form proposed here can optimize the mold design process by allowing a single mold, which may be called a base mold, to be used for multiple stud shapes serving, for example, different playing field types. This may contrast with prior art practices where each playing field type required a different mold design. The improved mold for manufacturing a sole for a footwear item, proposed here, incorporates a stud cavity within the mold that accommodates various studs, such as studs that differ in type based on playing field requirements.This advancement can not only simplify the mold-making process, but can also result in a reduction of the overall investment for new molds.

[0021] One advantage of the stud cavity is that the shape in which it is used can be employed to create soles compatible with various stud configurations. This means that a single mold design can provide a variety of sole plates to accommodate different playing surfaces and / or conditions. This is achieved because this single mold design can be used to produce a variety of different types of studs, each serving a different purpose, as mentioned elsewhere herein.

[0022] Furthermore, manufacturers could benefit from reduced costs, as the same mold could be used to produce soles for a whole range of shoes designed for different sports or terrains, eliminating the need for a separate mold for each stud configuration. This makes the entire manufacturing process more efficient and / or economical. Additionally, footwear can be easily personalized based on specific needs, such as playing surface (soft, firm, artificial turf), weather conditions, or personal preferences, simply by changing the stud configuration.

[0023] Additionally, from a manufacturing perspective, having a single mold that can accommodate multiple stud types can simplify the production line. There may be no need to change molds for different stud designs. This can have the potential to save time and / or resources. Furthermore, the ability to adapt the soles to different stud types allows the shoe manufacturer to respond quickly to market demands. If certain stud types become more popular due to changes in sports regulations or player preferences, production can be adjusted quickly without significant retooling.

[0024] The tunnel cavity for a mold referred to here can be understood as a space sufficient to accommodate a first tunnel, a second tunnel, or the like.

[0025] A first stud and / or a second stud, as referred to here, can be understood as a protruding cleat or traction element. The cleat or traction element may be attached to the soleplate of the footwear item in the final stage of soleplate production. The studs may be made of any material, including but not limited to materials such as plastic, rubber, or metal. Furthermore, studs may come in various shapes and sizes, depending on the playing surface and player preference. The primary function of studs is to provide traction and grip on the ground, enabling players to maneuver effectively, make quick turns, and maintain stability during play.The arrangement and configuration of studs on footwear items, particularly football boots, can vary to optimize performance for different playing conditions, such as firm ground, soft ground or artificial turf.

[0026] The tunnel cavity, which is configured to accommodate a first tunnel and / or a second tunnel, can be understood as meaning that the tunnel cavity should be specifically adapted and must provide structural properties to accommodate the first tunnel and / or the second tunnel.

[0027] That the second stollen differs from the first can mean that it is not the same (e.g., what is to be expected, compared to the first stollen). It can imply a contrast to or deviation from the norm or from previous instances. Being different can encompass a wide range of meanings, including, but not limited to, being unique, different, unusual, or divergent in some way. It can refer to differences in appearance, behavior, characteristics, or any other aspect that distinguishes the second stollen from what is typical or usual in relation to the first stollen.

[0028] It is noted that the tunnel cavity can be configured to accommodate a variety of further tunnels, e.g. a third, fourth, fifth, sixth, seventh, eighth, ninth, tenth tunnel and so on.

[0029] It is noted that the term "first" in the expression "first mold part" does not restrict the term "mold part" itself. In particular, this does not mean that a "first mold part" can necessarily be different from a "second mold part" and / or that a "first mold part" is more restrictive than a "mold part" alone. The term "first" is simply used to appropriately name the mold part. In particular, the same features and advantages described with reference to the "first mold part" may equally apply to the "second mold part" unless otherwise specified herein. It is also noted that the mold is not specifically limited to two mold parts. As a person skilled in the art understands, the mold may comprise more than two mold parts. In some examples, the mold may be referred to as a mold set.

[0030] When reference is made herein to a "wearer," this can mean any type of person capable of wearing a footwear item. The term "wearer" can be used synonymously with terms such as "user," "athlete," "human being," "person," or the like.

[0031] It is understood that the described advantages of the stub cavity for a shape as described above may also apply to the following preferred embodiments. Properties of the tunnel cavity

[0032] In a preferred embodiment of the mold described herein for producing a sole for a footwear article, the stud cavity is not completely filled with the first stud or the second stud when the first stud or the second stud is received in the stud cavity.

[0033] Having a stud cavity that is not completely filled by the stud being inserted (e.g., the first stud or the second stud) can offer several potential advantages, particularly in connection with the manufacture of a footwear item, such as a sports performance shoe like a football boot: For example, this can improve the bonding of the outsole material with the lug, especially if material can flow into any remaining space, i.e., the space not completely filled by the incorporated lug. It is believed that this can improve physical and / or chemical bonding processes.

[0034] Furthermore, the tunnel cavity may be capable of accommodating additional tunnels, e.g., a third, fourth, fifth tunnel (or even more, as the person skilled in the art understands). If the tunnel cavity is not completely filled, this means that further, and in particular more customized, tunnels can be accommodated without having to increase the capacity of the tunnel cavity.

[0035] The remaining space could be part of a mechanism that facilitates the removal and replacement of studs, thus providing convenience for the manufacture of footwear. In particular, labor costs could be reduced.

[0036] Furthermore, the additional space could be used to accommodate manufacturing tolerances. Minor variations in size are common in mass production. A cavity that doesn't require a precise fit allows for more consistent assembly and fewer problems with studs that don't fit into soles.

[0037] Materials can expand and contract with temperature and humidity. The additional space within the stud cavity could accommodate these natural changes without affecting the fit or performance of the studs or the sole.

[0038] In one example, the tunnel cavity can be filled with the first tunnel or the second tunnel if the first tunnel or the second tunnel is contained in the tunnel cavity to at least 10%, preferably at least 20%, preferably at least 30%, preferably at least 40%, preferably at least 50%, preferably at least 60%, preferably at least 70%, preferably at least 80%, preferably at least 90%, preferably at least 95%, and / or the tunnel cavity can be filled with the first tunnel or the second tunnel if the first tunnel or the second tunnel is contained in the tunnel cavity to at most 95%, preferably at most 90%, preferably at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50%, preferably at most 40%, preferably at most 30%, preferably at most 20%, preferably at most 10%.

[0039] In a preferred embodiment of the mold for manufacturing a sole for a footwear article as described herein, the first stud differs from the second stud in one or more of the following: a volume; a suitability for a different type of ground, such as solid ground, artificial ground, hard ground; a length; a width; a diameter; a shape; a surface roughness; a material property, such as a stiffness, a hardness and / or an elasticity; a material.

[0040] The advantages of having a first stud that differs from the second stud in terms of volume, suitability for different ground types, length, width, diameter, shape, or surface roughness can be significant for footwear, particularly in sportswear, especially for sports that place high demands on traction and stability, such as football. Each characteristic serves a specific purpose:

[0041] Varying the volume of studs can affect the weight distribution and potentially the shock absorption capacity of the sole. Studs with a larger volume can provide better support and reduce pressure on the foot, while studs with a smaller volume can offer greater precision and reduced weight. As the expert understands, this can depend in part on the shape of the studs.

[0042] Furthermore, the ability to change studs for those specifically designed for different ground types (firm ground, artificial ground, hard ground) allows manufacturers to adapt footwear to the surface on which the wearers play.

[0043] Furthermore, the lug length influences the degree of penetration into the ground. Longer lugs are typically used for softer surfaces to increase traction, whereas shorter lugs are better suited to harder surfaces to provide stability without excessive digging, which can cause slippage.

[0044] Furthermore, wider lugs can distribute weight more evenly and are generally more comfortable. Narrower lugs can provide more aggressive traction and better maneuverability. The diameter also influences these characteristics and can be optimized for different activities.

[0045] Furthermore, the shape of the studs can significantly influence an athlete's movement. For example, conical studs allow for easier pivoting, while bladed studs can provide more linear traction. The optimal stud shape can depend on the sport, the player's playing style, or their position.

[0046] Furthermore, surface roughness can affect the grip of the lugs. Smoother lugs might be less prone to dirt and mud buildup, while rougher lugs could potentially provide a slight increase in friction and traction.

[0047] Since the stollen cavity is configured to accommodate one or more of the above-mentioned different stollen types, it makes the entire manufacturing process more economical, as the mold does not need to be changed for each new stollen type.

[0048] In particular, the advantages of interchangeable studs with these different characteristics include improved efficiency. This means that different studs can be selected to optimize energy transfer and reduce fatigue. This can be crucial in sports where endurance and performance over time are essential. For manufacturers, offering such versatile stud configurations could provide the flexibility to satisfy a wide range of customers with varying needs simply by changing the available studs, rather than designing entirely different shoes.

[0049] The hardness referred to here can be understood as a material's ability to withstand force without deformation, scratching, penetration, and / or indentation. In other words, hardness can be a material's ability to essentially maintain its physical characteristics even in the face of applied force.

[0050] The elasticity referred to here can be understood as a property of materials to deform reversibly under stress and / or to return to their original shape and / or size when the stress is removed. Essentially, elasticity can be the ability of a material to stretch and / or compress under an applied force and then return to its original shape once the force is removed. retaining element

[0051] In a preferred embodiment of the mold for manufacturing a sole for a footwear article described herein, the stud cavity further comprises a retaining element configured to substantially counteract movement of the first stud and / or the second stud arranged in the stud cavity.

[0052] Integrating a retention element into the stud cavity, designed to counteract movement of the stud(s) when placed in the stud cavity, offers several advantages for both the manufacturing and functional aspects of the footwear item: For example, a retention element ensures a secure fit, reducing the likelihood of the stud loosening or falling out during use.

[0053] Furthermore, by minimizing unwanted stud movement within the cavity during manufacturing, footwear produced in this way can provide more consistent traction and stability. Athletes can therefore rely on predictable responses from their footwear. This can be crucial for quick movements, changes of direction, and overall agility. Beyond mere theory, reducing stud movement within the cavity may also help minimize wear on both the studs and the stud cavity. This can extend the lifespan of the stud cavity, the mold, and the stud itself, and consequently, the lifespan of the footwear produced in this way, making it a more cost-effective option for consumers.

[0054] The retaining element referred to in the present disclosure can be any object or structure designed to support and / or secure another object in place, typically by providing stability, gripping and / or enclosure.

[0055] In a preferred embodiment of the mold for manufacturing a sole for a footwear item described here, the retaining element has the shape of a pin.

[0056] Designing the retention element in the form of a pin within a cleat cavity can offer a number of practical advantages, particularly tailored to the secure attachment and functionality of replaceable cleats in footwear. For example, pins can be a simple and well-understood mechanism for securely fastening components in other technical fields. This makes it attractive for the present technical area. This simplicity can make the manufacturing process more efficient and potentially reduce production costs. A pin-shaped retention element is often easy to handle, making it easy to insert and remove the pins without special tools or complicated procedures. For personnel, this translates to quick and effortless cleat adjustment or replacement.

[0057] In a preferred embodiment of the mold for manufacturing a sole for a footwear article described here, the retaining element is arranged in the stud cavity.

[0058] In the context of shoe molds, arranging the retaining element within the stud cavity offers several advantages. For example, placing the retaining element within the stud cavity ensures that it is positioned in a way that maximizes support for the shoe during the molding process. This can help maintain the shoe's shape and structure more effectively. Furthermore, by utilizing the stud cavity, the retaining element essentially anchors the stud securely within the cavity, providing stability for the entire mold in which the stud cavity is used. This stability reduces the risk of displacement or movement during molding, resulting in more precise and consistent results. Additionally, using the stud cavity for the retaining element allows for efficient use of space within the mold.This can be particularly important when optimizing the design of the mold for manufacturing efficiency and cost efficiency.

[0059] When the present disclosure refers to the retaining element arranged in the mine cavity, this can mean that the retaining element is positioned or placed within the mine cavity. The word "in" can indicate that the retaining element is contained within the space of the mine cavity. However, it is not excluded that a portion of the retaining element may not be entirely within the mine cavity. This may, for example, allow the portion of the retaining element to be fixed to an outer part of the mine cavity. In general, however, the term "in" can indicate inclusion or placement within a defined space, i.e., the mine cavity. Thus, when referring to the retaining element that is "in" the mine cavity, it can be suggested that the retaining element is located within the boundaries or limits of the cavity.

[0060] In a preferred embodiment of the mold described here for manufacturing a sole for a footwear article, the retaining element is a separate element that can be detachably attached to the stud cavity.

[0061] The retaining element, which is a separate component that can be detachably attached to the tunnel cavity, can offer several advantages. For example, a separate construction, meaning the respective parts do not form an integral part, provides an advantage when designing more complex arrangements. Furthermore, additional functionalities can be more easily added to the combination of the retaining element and the tunnel cavity.

[0062] It is noted that integrally forming the retaining element with the stud cavity and / or with the second mold also offers various advantages. It is therefore understood that the choice between integrally forming the elements and providing separate pieces may depend on various factors such as the intended use, manufacturing processes, material properties, desired result, desired functionalities, and / or cost considerations.

[0063] It is noted that when something is described as separate from something else, i.e., when the holding element is a separate element, it can mean that it is distinct, independent, and / or not connected to the other element. In some examples, the term "separate" may suggest that there is an essentially distinct boundary between the elements. The boundary may be physical, conceptual, or otherwise. It can denote a state in which they are separate, isolated, or distinct from one another, without overlap or interaction. Shape of the tunnel

[0064] In a preferred embodiment of the mold for producing a sole for a footwear article described herein, the first stud and / or the second stud has a top surface for bonding with injected material in the mold in which the stud cavity is used, and a bottom surface that is substantially opposite the top surface, the bottom surface serving as the ground contact surface during the ordinary use of the footwear article produced with the mold. Furthermore, the first stud and / or the second stud has a pointed shape when viewed from top to bottom, or the first stud and / or the second stud has one or more substantially straight side surfaces when viewed from top to bottom.

[0065] The upper surface facilitates improved manufacturing because it can integrate with the sole material during the molding process. This ensures a secure bond between the studs and the sole. This bond can result from the connection that occurs when material is injected into the mold, encasing the stud. A good bond between the studs and the sole can be crucial for the durability and / or performance of the footwear.

[0066] The underside of the studs is specifically designed to interact with the playing surface or ground. It's the part of the stud that comes into direct contact with the surface during use, making it critical to the footwear's traction. This side is typically designed for durability and optimal grip.

[0067] A pointed stud shape, tapering from top to bottom, concentrates the force exerted by the wearer onto a smaller surface area, which can improve ground penetration (as with spikes or studs). This can significantly enhance grip and stability on various surfaces, such as grass, dirt, or turf, especially if the surface is soft or slippery. The shape helps prevent slipping and can improve the athlete's performance by providing better traction for acceleration, turning, and stopping.

[0068] A pointed shape can refer to a geometric form that tapers to a sharp or narrow point at one or more ends. It can be characterized by having one or more acute angles or converging sides and / or surfaces that result in a substantially sharp point. However, the point need not necessarily be a single point; it could be a flat surface. For example, an oblate cone or the like can also be considered a pointed shape. A cone with a flattened tip can be regarded as a pointed shape because the overall shape of the cone tapers to a single point, while the tip may be flat. This can make it structurally similar to other pointed shapes.The term "pointed shape" can generally refer to any shape that comes to a narrow or sharp point, regardless of whether that point is flat or pointed. Some examples of pointed shapes may include, but are not limited to, triangles with acute angles, such as equilateral or scaled triangles, as well as shapes such as (flattened) cones. These shapes frequently have applications in various fields, including, but not limited to, bolts, as described herein.

[0069] The advantage of having one or more essentially straight side surfaces on the first stud and / or the second stud from top to bottom is multifaceted: Flat side surfaces can provide better load distribution and structural integrity. This can improve the overall strength and stability of the assembly. Flat side surfaces are generally easier and less expensive to manufacture compared to more complex shapes. This can lead to reduced production costs and increased manufacturing efficiency.

[0070] Furthermore, lugs with straight side faces are often easier to align and install. This can lead to faster and more accurate assembly processes, reducing labor time and potential errors. Straight side faces can improve compatibility with other components. They can also reduce wear on the lugs because there are fewer stress concentrations and friction points compared to irregular or curved surfaces.

[0071] Overall, the use of essentially straight side faces on the studs can contribute to better performance, cost savings, and easier use in various applications.

[0072] In one example, the tunnel may be cylindrical. In this example, the tunnel may have only one lateral face, as a person skilled in the art understands. In various other examples, the tunnel may have a cross-section of a triangle, square, pentagon, hexagon, heptagon, octagon, nonagon, decagon, hendecagon, dodecagon, and so on. It is understood that the number of lateral faces corresponds to the points of the cross-section. These are only examples to illustrate the lateral faces of the tunnel; however, the tunnel is by no means limited to these illustrative examples, as a person skilled in the art understands.

[0073] In a preferred embodiment of the mold for manufacturing a sole for a footwear article described herein, the upper surface has a circumference, preferably a diameter, which is substantially flush with a circumference, preferably a diameter, of an upper surface of the stud cavity.

[0074] The upper surface, with a circumference that is essentially flush with the circumference of the top of the lug cavity, has the advantage that no material can flow to the bottom of the lug cavity during the manufacturing process of the sole for a footwear item. For example, if, in one step of the manufacturing process, the material for the sole of the footwear item is injected into the mold, the injected material can bond with the lugs in an improved manner. This can provide the lug sole. recess

[0075] In a preferred embodiment of the mold described herein for manufacturing a sole for a footwear article, the first stud and / or the second stud comprises a recess configured to engage with the retaining element, wherein the retaining element preferably comprises a projection; and / or the first stud and / or the second stud comprises a projection configured to engage with a recess of the retaining element.

[0076] The recess of the first and / or second cleat, referred to in this disclosure, may refer to a hollow or indented area or space that is recessed or milled into a surface, structure, object, or the like. The recess may be essentially the opposite of a projection. The recess may provide various different functionalities. The space formed by the recess may, in one example, be empty; for instance, no parts, components, elements, or the like may be arranged within the space formed by the recess. Typically, however, the recess is shaped to allow improved engagement with the retaining element.

[0077] As the person skilled in the art understands, the depression in the first adit and / or the second adit referred to here may be a macroscopic depression, i.e., a depression that could be easily recognized as such without the need for extensive investigation. A macroscopic depression may refer to a physical depression and / or hollow section visible to the naked eye, as opposed to a microscopic depression, which typically requires magnification to be seen.

[0078] It is noted that the depression may not be a through-hole. For example, the depression may not form a space that extends completely through the tunnel. However, according to the present invention, this is not excluded in some examples.

[0079] It is noted that the specific shape of the first and / or second adit recess referred to herein may vary depending on the type of adit used for the adit cavity. It is further noted that the adit cavity must provide structural features to allow intervention with the adit recess. Such structural features may include more detailed specifications of the retaining element described elsewhere herein.

[0080] The projection of the retaining element can help in providing a firm grip.

[0081] The recess for the retaining element can be essentially similar to the recess of the first and / or second stud described here. Furthermore, the recess for the retaining element can facilitate the provision of a secure engagement.

[0082] In a preferred embodiment of the mold described herein for manufacturing a sole for a footwear article, the recess of the first stud and / or the second stud is / are designed substantially in accordance with the retaining element, preferably with the projection of the retaining element, to provide a positive locking connection; and / or the projection of the first stud and / or the second stud is / are designed substantially in accordance with the recess of the retaining element to provide a positive locking connection.

[0083] A positive locking mechanism can mean that the retaining element is closely adapted to the shape of the recess, creating a secure and / or tight mechanical lock. This can reduce the likelihood of the stud loosening or coming loose during use, thus improving the reliability and safety of the footwear item manufactured using the stud cavity.

[0084] A positive locking mechanism can minimize the relative movement between the lug and the retaining element. This reduced movement can decrease wear on the contact surfaces, extend the service life of the lug and retaining element, and maintain optimal performance. When a retaining element fits tightly into a suitably designed recess, loads (such as impact forces, torque, or the like) can be distributed more evenly across the mating surfaces. This can prevent localized stress concentrations that could otherwise lead to premature failure.

[0085] In a preferred embodiment of the mold for manufacturing a sole for a footwear article described herein, the recess has varying circumferences, preferably varying diameters, along an axis parallel to an axis viewed from top to bottom of the first stud and / or the second stud.

[0086] Varying diameters within the recess can act as a locking mechanism for the retaining element. For example, if the recess tapers or includes undercuts, the larger diameter at one end can create a locking feature. Once the retaining element is inserted and moves beyond the wider section, it would be held in place by the narrower section, thus providing a secure attachment.

[0087] Varying diameters allow for selective engagement at specific depths, providing the option of using retaining elements of different lengths or shapes for varying engagement strengths or for other design or functional reasons. Variations in the recess diameter can help accommodate manufacturing tolerances of the retaining element. Even with minor differences in the size of the retaining elements, the varying diameters within the recess can ensure a precise fit.

[0088] This recess design allows for a nuanced engagement with the retaining element, which is strong and secure, thus accommodating various functional and production requirements. It is particularly useful in high-performance applications where the stability of the stud connection is paramount to ensure optimal footwear performance, durability, and user safety.

[0089] In a preferred embodiment of the mold described here for manufacturing a sole for a footwear article, the varying circumferences, preferably varying diameters, decrease in the direction from top to bottom along the top-to-bottom axis of the first stud and / or the second stud.

[0090] This further contributes to the aforementioned advantages set out in relation to the previous embodiment.

[0091] Overall, the studs, with their grooves featuring diameters that decrease from top to bottom, achieve a secure, durable, and reliable connection with the retaining elements. This can be essential for high-performance footwear, especially footwear exposed to demanding activities or environments.

[0092] The tunnel cavity can be specifically designed to accommodate the particular shape of the tunnel it contains, as the expert understands. Other features of the shape

[0093] In a preferred embodiment of the mold for manufacturing a sole for a footwear article described here, the stud cavity is arranged in the second mold part.

[0094] Arranging the stub cavity in the second molded part can offer a number of advantages, as described in more detail elsewhere. For example, it can simplify the manufacturing process.

[0095] In a preferred embodiment of the mold for producing a sole for a footwear article described herein, the stud cavity further comprises a retaining element configured to substantially counteract any movement of the first stud and / or the second stud arranged in the stud cavity, and the retaining element is an integral part of the second mold part.

[0096] The retaining element can be the retaining element described elsewhere here, as the expert understands.

[0097] The integral forming of the retaining element with the second molded part, e.g., forming them as a single piece, can also be known as a monolithic or integral design. This can offer several advantages. For example, strength and durability can be provided because an integrally formed piece often has fewer weak points and / or potential failures compared to assemblies of multiple components. This can lead to increased overall strength and durability. Furthermore, an integrally formed piece can be simpler and easier to manufacture and / or assemble because it can essentially eliminate the need for separate parts, fasteners, or connectors, although this is not excluded according to the present disclosure. This can also lead to cost savings in production. In addition, an integrally formed piece can reduce the overall weight of the resulting mold.Furthermore, an integrally formed part can provide improved performance, as wear, vibrations, noise associated with separate moving parts, and the like can be reduced. This can be particularly important when the sole of a footwear item is manufactured in a single mold.

[0098] When the present disclosure refers to “integrally formed” and / or “an integral piece”, this may mean that at least in one section it may not be possible to determine a material boundary between the second form and the holding element.

[0099] In a further preferred embodiment of the mold for manufacturing a sole for a footwear article described here, the retaining element is a separate element that can be detachably attached to the second mold part, in particular to the lower mold part.

[0100] The retaining element, a separate component that can be detachably attached to the second mold part, particularly the lower mold part, offers the advantage of allowing the mold to accommodate different retaining elements for various applications or products. This can mean that a single lower mold part can be used for a variety of products, saving on tooling and equipment costs. Furthermore, if the retaining element becomes damaged or worn, it can be replaced without having to replace the entire lower mold part, which is typically more expensive. This simplification can reduce maintenance costs and downtime.

[0101] In a further preferred embodiment of the mold described herein for producing a sole for a footwear article, the first mold part is an upper mold part when the mold is used during ordinary use, and the second mold part is a lower mold part when the mold is used during ordinary use.

[0102] This can improve the manufacturing process, as the cleat cavity can be more easily provided to the lower mold part. In some examples, only the upper mold part needs to be opened and / or closed to produce the footwear item. During normal use of the mold, the lower mold part may be located beneath the upper mold part, for example, along the direction defined by acceleration due to gravity.

[0103] It is equally understood, however, that depending on the viewing angle, the lower molded part could be considered the upper molded part, and vice versa. Furthermore, it is equally understood that, depending on the viewing angle, the lower molded part could be a right-hand molded part, and the upper molded part could be a left-hand molded part.

[0104] In a further preferred embodiment of the mold for manufacturing a sole for a footwear article, described herein, the mold further comprises a plurality of stud cavities, each of the plurality of stud cavities being configured to receive a first stud, and each of the plurality of stud cavities being configured to receive a second stud that is different from the first stud. In this way, any of the plurality of stud cavities can be a stud cavity described in any of the embodiments of the present disclosure.

[0105] In a further preferred embodiment of the mold for producing a sole for a footwear article described herein, the plurality of stud cavities is distributed according to a pattern, and / or wherein at least two stud cavities are arranged in an angled formation in relation to each other.

[0106] The distribution allows for the improvement of the sole to be manufactured according to specific requirements. Furthermore, the angled formation allows for even more detailed customization of the sole according to the customer's preferences.

[0107] Furthermore, this embodiment has the advantage of improving the functionality of the mold, which is used, for example, in the manufacture of a sole as described here. Distributing the stud cavities according to a specific pattern can also ensure a more uniform distribution of material during the molding process. This can lead to consistent product quality and structural integrity. Moreover, an angled formation can influence the mechanical properties of the resulting product, particularly at the studs arranged on the sole thus manufactured. Angled studs can provide increased strength or stability in certain directions, which could be especially advantageous if the sole is subjected to specific types of stresses or loads. This is typically the case for footwear used in sporting applications.The use of an angled configuration can also allow for the creation of more complex geometric shapes and patterns. These can be important for the function of the sole.

[0108] In a further preferred embodiment of the mold for manufacturing a sole for a footwear article described here, the retaining element is arranged on a side surface of the stud cavity, wherein the retaining element preferably projects into the stud cavity, wherein the retaining element preferably has a pointed shape, wherein the pointed shape of the retaining element is further preferably directed towards a top surface of the stud cavity.

[0109] An additional retaining element may be provided. This additional retaining element may be positioned essentially opposite the existing retaining element. The additional retaining element and the existing retaining element may have essentially the same shape.

[0110] The embodiment described with reference to this retaining element has the advantage that it is not positioned in the center of the cavity, i.e., not near the underside of the lug cavity. It is understood that the underside of the lug cavity can be the side closest to the sole after the lug tip has been formed. This prevents a depression from forming in the center of the lug, for example, once the sole for a footwear item has been manufactured.

[0111] The described configuration of the retaining element offers several advantages. For example, by being positioned on a side face of the stud cavity and projecting into the cavity, the retaining element can effectively engage with the stud or any inserted component. This improves the retention and / or stability of the component within the cavity and can prevent unintentional displacement.

[0112] Furthermore, the pointed shape of the retaining element, especially when directed towards the top of the stud cavity, can help guide and align the stud or inserted component during assembly. This can facilitate easier and more precise insertion, reducing the likelihood of misalignment.

[0113] The pointed shape of the retaining element can create a more secure fit by providing a localized contact point that can grip the inserted component more effectively. This can improve the overall stability and reliability of the connection.

[0114] The specific design of the retaining element allows for easier insertion and removal of the stud and / or essentially any component. The pointed shape can act as a guide during insertion, while also allowing for easy disassembly when necessary.

[0115] Overall, this configuration improves the functionality, reliability, and ease of use of the stud cavity, making it a practical and effective design choice for various applications, as described in more detail elsewhere herein. Proceedings

[0116] A second aspect of the present disclosure provides a method for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, the method comprising: providing a mold with a first mold part and a second mold part, wherein the mold comprises at least one stud cavity, the mold preferably being a mold according to any of the preceding claims; arranging a first stud in the at least one stud cavity; injecting a material into the mold; wherein the stud cavity is configured to receive a second stud, the first stud being different from the second stud.

[0117] The sole for a footwear item can be any type of sole for a footwear item, especially a sole for a sports shoe such as a football boot.

[0118] It is understood that any one or more of the aspects, embodiments, features, advantages, examples, or the like, as described herein with reference to the aspects and / or embodiments relating to the mine cavity and / or the shape, may be combined with the aspects and / or embodiments relating to the process, and vice versa. In particular, it is understood that the technical characteristics shown or described for the mine cavity and / or the shape, the advantages, and the improvements over the prior art are equally applicable to the process, and vice versa.

[0119] The material injected into the mold may include one or more of the following: polyamide, PA, especially fiber-reinforced PA, such as carbon fiber-reinforced PA, polyurethane, PU, ​​thermoplastic polyurethane, TPU.

[0120] In a preferred embodiment of the method described herein for manufacturing a sole for a footwear article according to the second aspect, when the first stud or the second stud is received in the stud cavity, the stud cavity is not completely filled with the first stud or the second stud.

[0121] With regard to this preferred embodiment of the method, it is noted that the technical features shown or described for the tunnel cavity and / or the shape, the advantages and improvements over the prior art are equally applicable to the method and vice versa.

[0122] In a preferred embodiment of the method described herein for manufacturing a sole for a footwear article according to the second aspect, the first stud differs from the second stud in one or more of the following: a volume; a suitability for a different type of ground, such as solid ground, artificial ground, hard ground; a length; a width; a diameter; a shape; a surface roughness; a material property, such as a stiffness, a hardness and / or an elasticity; a material.

[0123] With regard to this preferred embodiment of the method, it is noted that the technical features shown or described for the tunnel cavity and / or the shape, the advantages and improvements over the prior art are equally applicable to the method and vice versa.

[0124] In a preferred embodiment of the method described herein for manufacturing a sole for a footwear article according to the second aspect, the method further comprises: holding, using a holding element, the first stud in the stud cavity to substantially counteract movement of the first stud.

[0125] With regard to this preferred embodiment of the method, it is noted that the technical features shown or described for the tunnel cavity and / or the shape, the advantages and improvements over the prior art are equally applicable to the method and vice versa.

[0126] In a preferred embodiment of the method for manufacturing a sole for a footwear article described herein according to the second aspect, the sole for a footwear article is a first sole and the method further comprises: using the mold to manufacture a second sole for a footwear article, wherein the second sole for a footwear article differs from the first sole for a footwear article.

[0127] In this way, the proposed method for manufacturing a sole for a footwear item offers the advantage that one mold can be used to produce multiple soles without substantially changing or modifying the mold. This provides a more cost-effective manufacturing process for various types of soles for footwear items. sole

[0128] A third aspect of the present disclosure provides a sole for a footwear article, in particular for a sports shoe such as a football boot, wherein the sole is manufactured according to the method according to one of the aspects and / or embodiments described herein.

[0129] It is understood that the technical characteristics shown or described for the stud cavity and / or the shape and / or the process, the advantages and improvements over the prior art are equally applicable to the sole for a footwear article and vice versa.

[0130] A person skilled in the art will readily recognize whether a sole for a footwear article is manufactured using the method described herein or by another method. For example, studs provided in stud cavities during the molding process may have a fairly clean and integrated appearance, unlike studs typically provided, such as those attached after molding using adhesives or mechanical fasteners. Furthermore, it is generally assumed, without being bound by theory, that soles with studs produced using stud cavities can typically provide superior traction on certain surfaces, such as soft ground, grass, or slippery conditions. This difference in traction would be noticeable during use.It should be noted that while these differences may indicate the manufacturing process, advances in materials and manufacturing techniques can sometimes blur the lines. Nevertheless, soles for footwear produced using the method described here are generally distinguishable from those produced using other methods.

[0131] In a preferred embodiment of the sole for a footwear article described herein according to the third aspect, a substantially seamless and / or smooth transition from the studs to the sole is provided.

[0132] In a preferred embodiment of the sole for a footwear article described herein, the sole comprises a first arrangement of studs in a forefoot section of the sole and / or a second arrangement of studs in a hindfoot section of the sole. One or both of the arrangements comprise one or more studs. Preferably, the first arrangement comprises 1, 2, 3, 4, 5, 6, 7, 8, or 9 studs. Preferably, the second arrangement comprises 1, 2, 3, 4, 5, 6, 7, 8, or 9 studs. The first arrangement of studs can ensure a tailored and strategic placement of the studs for improved traction or the like. The second arrangement of studs can ensure a tailored and strategic placement of the studs for improved traction or the like, which may or may not provide different functionalities compared to the first arrangement of studs.

[0133] In a preferred embodiment of the sole for a footwear article described herein according to the third aspect, the material injected into the mold comprises one or more of the following: polyamide, PA, in particular fiber-reinforced PA, such as carbon fiber-reinforced PA, polyurethane (PU), thermoplastic polyurethane (TPU).

[0134] Furthermore, the material injected into the mold may not be limited to the examples above, and various other materials are included according to the present disclosure. Moreover, the material may be a composition of different materials, and their respective proportions may vary.

[0135] The materials used for the injected material generally offer the advantage of providing sufficient stiffness, hardness, and / or flexural modulus. Furthermore, these materials can contribute to improved sole performance for footwear. Additionally, these materials can be relatively simple to produce, are cost-effective, and are widely accepted in the field of shoe soles.

[0136] Hardness can be understood as explained in more detail elsewhere herein. The flexural modulus, as used in this disclosure, can be understood as a bending modulus. The bending modulus can be an intensive property, determined as the ratio of stress to strain during bending deformation and / or the tendency of a material to resist bending. 4. Brief description of the characters

[0137] The invention is described in more detail below with reference to the following figures: Fig. Figure 1 shows a form for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, according to an embodiment of the present disclosure. Fig. Figure 2 shows a detailed view of two tunnel cavities according to an embodiment of the present disclosure. Fig. Figure 3 shows a detailed view of four tunnels according to an embodiment of the present disclosure. Fig. Figure 4 shows a detailed view of two retaining elements according to an embodiment of the present disclosure. Fig. Figure 5 shows a detailed view of a tunnel cavity according to an embodiment of the present disclosure. Fig. Figure 6 shows a flowchart of a process for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, according to an embodiment of the present disclosure. 5. Detailed description of preferred embodiments

[0138] Only a few possible embodiments of the invention are described in detail below. However, the present invention is not limited to these, and a multitude of other embodiments are applicable without deviating from the scope of the invention. The embodiments shown can be modified and combined with one another in various ways, provided they are compatible, and certain features can be omitted where they appear unnecessary. In particular, the disclosed embodiments can be modified by combining certain features of one embodiment with one or more features of another embodiment.

[0139] While the following embodiments are mainly described with reference to a sole for a footwear article, in particular for a sports shoe such as a football boot, those skilled in the art will recognize that the disclosure of the invention can be applied equally to a multitude of different technical fields and / or applications. For example, other footwear articles with studs are also conceivable, including, but not limited to: football boots, hiking boots, sneakers with traction elements, basketball shoes with traction elements, rugby shoes, baseball shoes, golf shoes, tennis shoes, and cross-training shoes. The expression "a footwear article, in particular for a sports shoe such as a football boot" means that athletic sports shoes are mentioned without mentioning applications not directed at athletic use, such as dress shoes, chess shoes, or slippers.

[0140] It is understood that not all features of the described aspects / embodiments need to be present to realize the technical advantages provided by this disclosure, as defined by the subject matter of the claims. The disclosed aspects / embodiments can be modified by combining certain features of one aspect / embodiment with one or more features of another aspect / embodiment. In particular, the person skilled in the art will understand that features and / or functional elements of one aspect / embodiment can be combined with technically compatible features and / or functional elements of any other aspect / embodiment of this disclosure, provided that the resulting combination falls within the definition of this disclosure.

[0141] In the present figures and description, the same reference numerals refer to the same elements. For the sake of clarity and brevity, certain features, parts, elements, aspects, components and / or steps of certain embodiments are presented without undue detail if such detail would be obvious to the person skilled in the art in view of the teachings herein and / or if such detail would obscure an understanding of more relevant aspects of the embodiments.

[0142] It is noted that, in order to avoid excessive repetition of reference numbers, e.g., the investigation cavity 130, 130a, 130b, 130c, 130d, the holding element 140, 140a, 140b, 140, the tunnels 150, 150a, 150b, 150c, sometimes the mention of all reference numbers (e.g., the investigation cavity 130, the holding element 140, the tunnels 150) is omitted for the sake of brevity and not with the intention of limiting the scope of protection.

[0143] As the person skilled in the art understands, and / or to avoid redundancies, reference is also made to the explanations in the preceding sections, which also apply to the following detailed description. Furthermore, for the sake of brevity and clarity, not all features, parts, elements, aspects, components, and / or steps are explicitly indicated by reference numerals. This applies in particular where the person skilled in the art recognizes that such features, parts, elements, aspects, components, and / or steps are present in multiples. Definitions

[0144] Unless otherwise specified, the terms "substantial" or "essentially," as used in this context, can be understood to mean to a large or significant extent, or for the most part or substantially. In particular, manufacturing tolerances are included in this term. Therefore, any values ​​or arrangements described using the terms "substantial" or "essentially" may differ slightly from the values ​​or arrangements described.

[0145] The term "and / or" is simply a relationship of association that describes associated objects and indicates that three relationships can exist. For example, A and / or B can represent three conditions: the independent existence of A, the existence of both A and B, and the independent existence of B. Additionally, the symbol " / " in revelation usually indicates that preceding and next associated objects form an "or" relationship.

[0146] The terms “lower”, “upper”, “one end”, “the other end”, “outer side”, “upper”, “over”, “inner side”, “under”, “below”, “horizontal”, “coaxial”, “center”, “end”, “part”, “length”, “outer end”, etc., which indicate the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings.

[0147] The terms “upper”, “above”, “below”, “under” and the like, as used in the present invention to indicate a relative position in space, are used for the purpose of facilitating explanation to describe a sole plate, footwear article, element, part, object and / or feature shown in the drawings relative to the relationship of another footwear article, element, part, object and / or feature. Description of the characters

[0148] Fig. Figure 1 shows a mold 100 for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, according to one embodiment of the present disclosure. The features shown in this figure are intended to be applicable to all other embodiments of the present disclosure described elsewhere herein, insofar as this is technically feasible. The omission of a combination of one or more features of this figure with one or more features of other figures does not mean that the person skilled in the art cannot deduce from the overall disclosure that such a combination is possible. For the sake of brevity, not all features shown in this figure are described in detail.

[0149] As can be seen, the mold comprises a first mold part 105a and a second mold part 105b, which are preferably detachably connectable to one another. Furthermore, the mold 100 comprises a tunnel cavity 130, 130a, 130b, 130c, 130d, wherein the tunnel cavity 130, 130a, 130b, 130c, 130d is configured to receive a first tunnel 150 (denoted in other figures as 150, 150a, 150b, 150c), wherein the tunnel cavity 130, 130a, 130b, 130c, 130d is configured to receive a second tunnel (in Fig. 1 not shown) to record, which differs from the first tunnel 150.

[0150] The first mold part 105a can be an upper mold part 105a when the mold 100 is used during normal use, and the second mold part 105b can be a lower mold part 105b when the mold 100 is used during normal use.

[0151] Furthermore, the tunnel cavity 130, 130a, 130b, 130c, 130d includes a retaining element 140 (in Fig. 2 and in Fig. 4 shown in more detail, therein designated by reference numerals 140, 140a, 140b, 140c), which is configured to substantially counteract any movement of the first adit 150 and / or the second adit, which are arranged in the adit cavity 130, 130a, 130b, 130c, 130d. The retaining element 140 may be arranged in the adit cavity 130.

[0152] The retaining element 140 (in Fig. 2 and in Fig. 4 shown in more detail, therein designated by reference numbers 140, 140a, 140b, 140c), which is configured to allow movement of the first tunnel 150 and / or the second tunnel (in Fig. To essentially counteract the movement of the first stub (not shown) within a stub cavity 130, it can be an integral part of the second molded part 105b. In such an example, the first stub 150 simply needs to be placed in the stub cavity 130, 130a, 130b, 130c, 130d to secure it. By eliminating the need for additional components, parts, elements, or the like, the integrally formed retaining element 140 can reduce material costs, labor costs, and / or assembly time, resulting in cost savings in the provision of the mold 100. Additionally, fewer components can often mean simplified designs, which could lead to reduced material waste during production and disposal.

[0153] Various retaining elements 140 are included in the present disclosure, which can be used to substantially counteract movement of the first adit 150 and / or the second adit, which are arranged in the adit cavity 130 (in particular, the same applies to the other retaining elements, which are shown here, for example, in Fig. 2 and in Fig. 4 (designated with reference numerals 140, 140a, 140b, 140c). In some examples, the retaining element 140 may be configured to attach the parts to each other in a substantially detachable manner, e.g. including, but not limited to, the first adit 150 and the adit cavity 130 and / or the second adit and the adit cavity 130.Such retaining elements 140 include one, several, or all of the following non-exhaustive list: fasteners (such as screws, bolts, nuts, rivets, clamps, clips), adhesives and glues (various types of adhesive substances that can bond together when they dry or harden, a double-sided tape that includes adhesive on both sides of a strip), welding (melting sections of the parts at least partially and fusing them together), brazing (melting a low-temperature part to join), mechanical connections (latches and catches, hooks and loops, zippers), magnetic fasteners, snap fasteners (locking components that snap together). Other examples may include pins, rods, pegs, dowels, spindles, stakes, posts, shafts, rods, poles, cylinders, struts, supports, braces, brackets, anchors, studs, and fasteners.

[0154] As the expert understands, the way in which the first tunnel 150 and / or the second tunnel (in Fig. 1 not shown) are arranged in the tunnel cavity 130, and the way in which they are essentially held together depends on various other aspects.

[0155] A retaining element 140 (the same applies to the other retaining elements shown here in Fig. 2 and in Fig. 4 (designated with reference numbers 140, 140a, 140b, 140c), which allows for easy removal and secure placement, can simplify the process of replacing cleats to manufacture footwear items with varying requirements. This feature can be designed to require no additional tooling or significant effort. Therefore, the presence of a retaining element 140 in the cleat cavity provides both functional and safety advantages.

[0156] One or more and, in a particularly preferred embodiment, all of the stub cavities arranged in the second molded part 105b.

[0157] Although the form 100, which is in Fig. While Figure 1 depicts five tunnel cavities, Form 100 is not limited to this number, as this is merely a specific example. Form 100 can include a variety of tunnel cavities 130, 130a, 130b, 130c, 130d. Each of these multiple tunnel cavities can be configured to accommodate a first tunnel 150. Furthermore, each of these multiple tunnel cavities can also be configured to accommodate a second tunnel, distinct from the first tunnel 150.

[0158] The numerous stub cavities 130, 130a, 130b, 130c, 130d can be distributed according to a pattern. Additionally or alternatively, at least two stub cavities 130, 130a can be arranged in an angled formation relative to each other. Such a strategic placement of the stub cavities can minimize problems such as warping and shrinkage during the cooling phase of the molding process, as material cooling rates can be controlled more effectively.

[0159] For example, the stud cavities 130, 130a, 130b, 130c, 130d can be distributed such that a first arrangement of studs is provided in a forefoot section of the sole and / or that a second arrangement of studs is provided in a hindfoot section of the sole. One or both of the arrangements comprise one or more studs. Preferably, the first arrangement comprises 1, 2, 3, 4, 5, 6, 7, 8, or 9 studs. Preferably, the second arrangement comprises 1, 2, 3, 4, 5, 6, 7, 8, or 9 studs. The first arrangement of studs can ensure a tailored and strategic placement of the studs for improved traction or the like. The second arrangement of studs can ensure a tailored and strategic placement of the studs for improved traction or the like, which may or may not provide different functionalities compared to the first arrangement of studs.Thus, the method proposed here enables the production of a sole with more advanced functionalities.

[0160] Furthermore, by distributing the cleat cavities 130, 130a, 130b, 130c, 130d in a specific pattern, the material flow during the injection process can be optimized to reduce the potential for defects such as air pockets or incomplete filling. Additionally, a proper arrangement of cleat cavities 130, 130a, 130b, 130c, 130d can help manage heat distribution throughout the mold 100 during the curing or cooling process, thereby further improving the product quality and consistency of the sole for a shoe item.

[0161] The tunnel cavity 130, 130a, 130b, 130c, 130d can in some examples be like a specifically designed cavity with a wall, a frame space, a wall cavity, a wall recess, a frame gap, a wall pocket or the like.

[0162] Fig. Figure 2 shows a detailed view of two tunnel cavities 130, 130a (labeled A and B) according to an embodiment of the present disclosure. The features shown in this figure are intended to be applicable to all other embodiments of the present disclosure described elsewhere herein, insofar as this is technically feasible. The omission of a combination of one or more features of this figure with one or more features of other figures does not mean that the person skilled in the art cannot deduce from the overall disclosure that such a combination is possible. For the sake of brevity, not all features shown in this figure are described in detail.

[0163] As can be seen, tunnel cavity 130 and / or tunnel cavity 130a are not completely filled with the first tunnel 150, 150a or the second tunnel 150, 150a when the first tunnel 150, 150a or the second tunnel 150, 150a is incorporated into tunnel cavity 130 and / or 130a. It is noted that tunnel 150a can readily be incorporated into tunnel cavity 130 (as a second tunnel for tunnel cavity 130) and / or that tunnel 150 can readily be incorporated into tunnel cavity 130a (as a second tunnel for tunnel cavity 130a).

[0164] Furthermore, the first tunnel 150 differs from the second tunnel 150a if, for example, it is assumed that the first tunnel can be designated as tunnel 150 and that the second tunnel is in Fig. 2, which can be designated as tunnel 150a. The difference may consist of one or more of the following: a volume; a suitability for a different soil type, such as firm ground, artificial ground, hard ground; a length; a width; a diameter; a shape; a surface roughness; a material property, such as stiffness, hardness and / or elasticity; a material.

[0165] The artificial surfaces encompassed by the present disclosure include, but are not limited to, the second generation (2G), i.e., shorter and denser sand-based or leveled surfaces with a pile height typically less than 24 mm; the third generation (3G), i.e., long-fiber synthetic grass with a pile height of approximately between 40 mm and 65 mm (typically filled with a combination of sand and performance infill); and the fourth generation (4G), i.e., synthetic grass without the need for rubber granules. Naturally, further generations are also encompassed by the present disclosure, as the skilled person understands, and there is no need to mention them specifically here.

[0166] Regarding elasticity, the parameter can be described in an example by Hooke's Law, which states that the force required to extend or compress a spring by a certain distance is proportional to that distance. Materials can exhibit varying degrees of elasticity. Some materials, such as rubber bands or springs made from certain metals, can stretch significantly and return to their original shape, demonstrating high elasticity. Others, such as plastics or ceramics, can deform permanently under tension, exhibiting lower elasticity.

[0167] In some examples of Form 100 for manufacturing a sole for a footwear item, as described here, the first bolt 150 differs from the second bolt 150a in the stiffness grades of one or more materials used for the first bolt 150 and / or the second bolt 150a. For example, a stiffer material for the second bolt 150a, compared to the first bolt 150, offers at least the following advantages: A stiffer bolt material can make the footwear item more adaptable, durable, and resistant to damage or deformation under pressure or load, or any kind of impact. A high-stiffness material can help increase the stability of the bolt and, consequently, potentially the sole for a footwear item. Furthermore, stiffer materials can improve precision and accuracy.This can be particularly important if the sole, due to its stud configuration, is used for a specific activity such as football, running on a track, or similar sports. In other words, because in football, or generally in any type of sporting activity where a good level of traction is important, high precision can be helpful in achieving a high level of performance.

[0168] A stiffer material can make the sole more durable and resistant to damage or deformation under pressure or load.

[0169] It is understood that the differences in the first adit 150 and / or the second adit 150a can be equally applicable to any other adit that can be accommodated in the adit cavity 130, 130a. Furthermore, the adit cavity 130, 130a must provide structural features that allow it to accommodate the first adit 150 and / or the second adit 150a.

[0170] The retaining elements 140, 140a can be separate elements that can be detachably attached to the tunnel cavity 130, 130a. It is noted that in Part A of Fig. 2 the tunnel cavity 130 can be configured to accommodate the first tunnel 150 and the second tunnel 150a, although a configuration in which the second tunnel 150a is accommodated in the tunnel cavity 130 is not shown.

[0171] In other examples, the retaining elements 140, 140a can be separate elements that can be detachably attached to the second molded part 105b, in particular to the lower molded part 105b. In this way, the retaining elements 140, 140a can thus be attached directly to the second molded part 105b.

[0172] Fig. Figure 3 shows a detailed view of four tunnels 150, 150a, 150b, 150c (labeled A, B, C and D) according to an embodiment of the present disclosure. The features shown in this figure are intended to be applicable to all other embodiments of the present disclosure described elsewhere herein, insofar as this is technically feasible. The omission of a combination of one or more features of this figure with one or more features of other figures does not mean that the person skilled in the art cannot deduce from the overall disclosure that such a combination is possible. For the sake of brevity, not all features shown in this figure are described in detail.

[0173] The 150 stud is particularly suitable for artificial grass as a surface. The 150a stud is particularly suitable for firm ground. The 150b stud is particularly suitable for a different type of firm ground. The 150c stud is particularly suitable for a different type of artificial grass as a surface.

[0174] The first stud 150 and / or the second stud 150a (the same may apply to all other studs mentioned here, e.g., studs 150b, 150c) may have a top surface 152 (also 152a, 152b, 152c) for joining with injected material in the mold 100 in which the stud cavity 130 is used, and a bottom surface 153 (also 153a, 153b, 153c) which is substantially opposite the top surface 152 (also 152a, 152b, 152c), the bottom surface 153 serving as the ground contact during the ordinary use of the footwear article produced with the mold 100. Furthermore, the first tunnel 150 and / or the second tunnel 150a can have a pointed shape when viewed from the top 152 to the bottom 153.

[0175] It is noted that each stud 150, 150a, 150b, 150c according to the present disclosure can be a prefabricated stud 150, 150a, 150b, 150c, i.e., it can be a stud that already has the final composition. It is understood that this can, in particular, enable a modular shape design that facilitates the incorporation of various studs 150, 150a, 150b, 150c, especially studs 150, 150a, 150b, 150c with shapes for different types of athletic footwear intended for use on various playing surfaces, such as at least solid ground, artificial ground (including different generations of artificial ground, e.g., 2G, 3G, or 4G), and hard ground, as mentioned elsewhere herein.In some examples, however, the cleat itself can form a shell, providing a space that can be filled with molding material to create the shape and composition of the final cleat, either during the sole molding process or as a separate molding step. It is understood that this also offers particular advantages. For example, the modular form can thus make it possible to provide soles, such as an integral sole design, that can serve a variety of different placement surfaces, as mentioned elsewhere herein.

[0176] As in Fig. As shown in Figure 3, the upper surface 152 can have a circumference, preferably a diameter, that is substantially flush with a circumference, preferably a diameter, of the upper surface of the lug cavity 130. When the circumference of the upper surface 152 of the lug 150 is flush with that of the lug cavity 130, the transition between the lug 150 and the rest of the sole is smooth, which can reduce the likelihood of weak points or irregularities where separation or wear could begin. This can extend the service life of the shoe. A flush circumference can ensure that the bond between the lug 150 and the sole material is consistent over the entire circumference of the lug. This can prevent gaps or areas of weaker adhesion that could compromise the secure bond between the lug and the sole.In the injection molding process, having a flush top surface can aid material flow, ensuring that it is distributed evenly across the top surface 152. This allows it to effectively fill the mold 100 without creating areas of excess material or voids.

[0177] The first tunnel 150 (also 150a, 150b, 150c) and / or the second tunnel 150a (also 150, 150b, 150c) comprise a recess 151 (also 151a, 151b, 151c) which engages with the retaining element 140 (as in Fig. 2) is configured, wherein the retaining element 140 preferably includes a projection (as shown in Fig. 2 can be seen), and / or the first tunnel 150 (also 150a, 150b, 150c) and / or the second tunnel 150a (also 150, 150b, 150c) include a projection (not shown) configured to engage with a recess (not shown) of the retaining element 140.

[0178] The inclusion of a recess 151 (also 151a, 151b, 151c) in the first stud 150 (also 150a, 150b, 150c) and / or the second stud 150a (also 150, 150b, 150c), which allows stud attachment via a retaining element 140 (also 140a, 140b, 140c), can offer design flexibility, as the studs can be optimized independently of the sole. The same sole design can be used with different stud configurations, maximizing the versatility of the shape.

[0179] As in Part A of Fig. As can be seen in Figure 2, the recess 151 of the first cleat 150 is designed substantially in accordance with the retaining element 140, preferably with the projection of the retaining element 140, to provide a positive locking connection. Additionally or alternatively, the projection (not shown) of the first cleat 150 is designed substantially in accordance with the recess (not shown) of the retaining element 140 to provide a positive locking connection.

[0180] The same applies to Part B of Fig. 2, as is to be understood. That is, the recess 151a of the second cleat 150a is shaped substantially in accordance with the retaining element 140a, preferably with the projection of the retaining element 140a, to provide a positive locking connection. Additionally or alternatively, the projection (not shown) of the second cleat 150a is shaped substantially in accordance with the recess (not shown) of the retaining element 140a to provide a positive locking connection.

[0181] A more detailed explanation (e.g., 151, 151a, 151b, 151c, as in Fig. 3 shown in detail) and a retaining element (e.g. 140, 140a, 140b, 140c, as in Fig. 2 and Fig. 3 shown in detail), which match in shape, can facilitate easier assembly and disassembly when replacing studs. This is due to the matching shapes, which allow the retaining element to essentially guide into the correct position, thus providing a clear indication that the parts are properly engaged.

[0182] A positive locking mechanism can refer to a secure and firm connection between two components or parts, where one piece locks onto another in a substantially precise and / or reliable manner. This type of fit can ensure that the components can be securely fastened together without the possibility of unintentional movement or separation. According to the present disclosure, it is not excluded that this may frequently involve mechanisms such as latches, hooks, tabs, or other locking features that provide a unique and / or distinctive engagement. Furthermore, the mechanism is not limited to the examples mentioned above. In general, a positive locking mechanism can create a strong and stable connection. Positive locking mechanisms are particularly advantageous in the present technical field because they improve reliability and precision.

[0183] As particularly in Fig. As can also be seen in Figure 3, the depression 151 (also 151a, 151b, 151c, 151d) has varying circumferences, preferably varying diameters, along an axis parallel to a top-to-bottom axis (TB) of the first adit 150 and / or the second adit 150a. The varying circumferences, preferably varying diameters, can decrease in the top-to-bottom direction along the top-to-bottom axis (TB) of the first adit 150 and / or the second adit 150a.

[0184] Fig. Figure 4 shows a detailed view of two retaining elements 140b, 140c (the choice of reference numerals does not limit the scope of protection) according to an embodiment of the present disclosure. The features shown in this figure are intended to be applicable to all other embodiments of the present disclosure described elsewhere herein, insofar as this is technically feasible. The omission of a combination of one or more features of this figure with one or more features of other figures does not mean that the person skilled in the art cannot deduce from the overall disclosure that such a combination is possible. For the sake of brevity, not all features shown in this figure are described in detail.

[0185] As can be seen, the retaining element 140b can have the shape of a pin. Pins can be designed to fit snugly into corresponding holes or notches within the lug 150, effectively preventing movement without requiring excessive force or complex locking mechanisms. A pin can have a slim profile. This slim profile does not occupy much space within the cavity 130. Furthermore, pin mechanisms, due to their simplicity, tend to be reliable, with fewer moving parts that could be prone to failure or wear over time.

[0186] Pins can be manufactured from high-strength materials that withstand the repeated stresses of insertion and removal, such as insertion and removal into a cleat 150 that is received in the cleat cavity 130. Furthermore, pins can generally be easy to handle. In addition to these advantages, pin-shaped elements can be manufactured with high precision. This can ensure a consistent fit across a large or entire line of products, particularly for use in the cleat cavity 130 for a mold 100, as described herein. A pin can be designed to sit flush with the cleat 150 and / or the cleat cavity 130.

[0187] Fig. Figure 5 shows a detailed view of a tunnel cavity 130 according to an embodiment of the present disclosure. The person skilled in the art will understand that features and / or functional elements of this embodiment can be combined with technically compatible features and / or functional elements of any other embodiment of the present disclosure, provided that the resulting combination falls within the definition of the present disclosure. For the sake of brevity, not all features shown in this figure are described in detail.

[0188] The upper surface 152 and the lower surface 153 of the tunnel 150 are shown. A retaining element 140 is provided (as described in more detail elsewhere). The retaining element 140 is arranged on a side surface 134 of the tunnel cavity 130. The retaining element 140 preferably projects into the tunnel cavity 130. The retaining element 140 preferably has a pointed shape. More preferably, the pointed shape is directed towards an upper surface of the tunnel cavity 130.

[0189] This example shows Fig. 5. Another retaining element 140'. The additional retaining element 140' is provided essentially opposite the retaining element 140. As can be seen, the additional retaining element 140' and the retaining element 140 have essentially the same shape. However, different arrangements and shapes are possible. The advantage of having two retaining elements 140, 140' lies in improved stability, increased load distribution, and improved reliability. For example, by using two retaining elements 140, 140', the load or force can be distributed more evenly, thereby reducing the risk of failure or damage during manufacturing. This dual configuration can provide redundancy. This ensures that if one retaining element fails, the other can still maintain the hold of the stud 150, thus improving overall reliability and safety.Additionally, the use of two retaining elements 140, 140' can enable more precise alignment and positioning of the stud 150. This can contribute to improved performance and functionality in various applications.

[0190] It should be noted that the configuration of the retaining element 140, 140' can be adapted to various sizes and shapes of the studs 150 and / or essentially any component accommodated within it. This can make it a versatile solution for various applications. This flexibility can be advantageous when designing modular systems or components that need to be interchangeable.

[0191] The pointed shape and specific positioning of the retaining element(s) 140, 140' can reduce wear on both the retaining element(s) 140, 140' and the inserted component. By providing a precise contact point, it minimizes friction and wear from repeated insertion and removal.

[0192] By positioning the retaining element(s) 140, 140' on the side surface(s) 134, 134' of the tunnel cavity 130, the available space is used efficiently without requiring additional space outside the tunnel cavity 130. This can be particularly advantageous in compact or space-constrained designs. This is especially useful in the modular form described here.

[0193] Fig. Figure 5 also shows by way of example that the first tunnel 150 (and / or any further tunnel) can have one or more substantially straight side faces 154, 154', as seen from the top 152 to the bottom 153 TB. In Fig. In section 5, two side faces 154, 154' are specified. However, in one example, the two side faces 154, 154' could be a single circumferential side face 154.

[0194] It should be noted that the number of side faces of the tunnel 150 in the present disclosure is not limited to the number shown in Fig. Figure 5 shows that, for example, the tunnel 150 can be cylindrical. In this example, the tunnel 150 can have only one lateral face 154, as a person skilled in the art understands. In various other examples, the tunnel 150 can have a cross-section of a triangle, square, pentagon, hexagon, heptagon, octagon, nonagon, decagon, hendecagon, dodecagon, and so on (at least at one point along the top-bottom direction TB). It is understood that the number of lateral faces can thus correspond to points of the cross-section. These are only examples to illustrate the lateral faces 154, 154' of the tunnel; however, the tunnel 150 is by no means limited to these illustrative examples, as a person skilled in the art understands.

[0195] Similar characteristics may apply to one or more side faces of the tunnel cavity 130. For example, shows Fig. 5 by way of example, that the tunnel cavity 130 (and / or any further tunnel cavities as described elsewhere herein) may have one or more side faces 134, 134'. Although Fig. 5 indicates two side surfaces 134, 134', it can easily be understood that this can be a circumferential (single) side surface 134.

[0196] It should be noted that the number of side faces of the tunnel cavity 130 of the present disclosure is not limited to the number shown in Fig. Figure 5 is shown. For example, the mine cavity 130, as mentioned above, can be cylindrical. In this example, the mine cavity 130 can have only one lateral face 134, as mentioned above and as understood by those skilled in the art. In various examples, the mine cavity 130 can have a cross-section of a triangle, square, pentagon, hexagon, heptagon, octagon, nonagon, decagon, hendecagon, dodecagon, and so on (at least at one point along the top-bottom direction TB). It is understood that the number of lateral faces 134, 134' can thus correspond to points of the cross-section; for example, a square can mean that there are four lateral faces. These are only examples to illustrate the lateral faces 134, 134' of the mine cavity 130. However, the tunnel cavity 130 is by no means limited to these illustrative examples, as the expert understands.

[0197] Fig. Figure 6 shows a flowchart of a method 200 for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, according to an embodiment of the present disclosure. The method 200 comprises providing 210 a mold 100 with a first mold part 105a and a second mold part 105b, wherein the mold 100 comprises at least one stud cavity 130, and wherein the mold 100 is preferably a mold 100 according to one of the embodiments, examples and / or aspects described herein. The method 200 also comprises arranging 215 a first stud 150, 150a, 150b, 150c in the at least one stud cavity 130; injecting 220 a material into the mold 100; wherein the tunnel cavity 130 is configured to accommodate a second tunnel 150, 150a, 150b, 150c, wherein the first tunnel (e.g. 150) differs from the second tunnel (e.g. 150a).

[0198] As with regard to the form 100 described here, with regard to method 200, if the first tunnel 150 or the second tunnel 150a is included in the tunnel cavity 130, the tunnel cavity 130 may not be completely filled with the first tunnel 150 or the second tunnel 150a. The first tunnel 150 may differ from the second tunnel 150a in one or more of the following: a volume; a suitability for a different soil type, such as solid soil, artificial soil, or hard soil; a length; a width; a diameter; a shape; or a surface roughness.

[0199] Method 200 optionally further includes: Holding 230, using a holding element 140, 140a, 140b, 140c (in Fig. 2 and in Fig. 4 shown in more detail), of the first adit 150 in the adit cavity 130, in order to essentially counteract any movement of the first adit 150.

[0200] Furthermore, the sole for a footwear can be a first sole, and the method 200 can optionally further include: using 240 of the form 100 to manufacture a second sole for a footwear, wherein the second sole for a footwear differs from the first sole for a footwear.

[0201] Although not shown in the figures, one embodiment of the invention is also directed to a sole for a footwear article, in particular for a sports shoe such as a football boot. The sole is manufactured according to method 200 of one of the aspects and / or embodiments described herein. materials

[0202] The material injected into the mold 100 may include one or more of the following: polyamide, PA, especially fiber-reinforced PA, such as carbon fiber-reinforced PA, polyurethane, PU, ​​thermoplastic polyurethane, TPU.

[0203] The material injected into the mold 100 may additionally or alternatively include one or more of the following: polyvinyl chloride (PVC), ethylene vinyl acetate (EVA), nylon (polyamide), polypropylene (PP), polyethylene (PE), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), thermoplastic rubber (TPR), polyoxymethylene (POM), polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), polystyrene (PS), silicone rubber, natural rubber, butadiene rubber (BR), styrene-butadiene rubber (SBR), nitrile rubber (NBR), chloroprene rubber (CR), ethylene propylene diene monomer (EPDM), fluoroelastomer (FKM), polyisoprene (IR), glass fiber reinforced plastics (GFRP), carbon fiber reinforced plastics (CFRP), Kevlar-reinforced plastics. Polylactic acid (PLA), polyhydroxyalkanoates (PHA), bio-based polyethylene (Bio-PE), starch mixtures, liquid crystal polymer (LCP), thermoplastic vulcanizates (TPV), polyetheretherketone (PEEK), polyetherimide (PEI),Polyphenylene sulfide (PPS), foamed polyurethane, foamed EVA, polybutadiene and a mixture of polypropylene (PP) and ethylene propylene diene monomer (EPDM).

[0204] It is noted that many material combinations are possible. This may depend on the specific requirements for performance and / or stiffness and / or hardness and / or flexural modulus.

[0205] In particular, the materials used for this product exhibit a wide range of properties and can be used for many applications due to their varying degrees of hardness, density, flexural modulus, elasticity, cold and heat resistance, durability, and resilience. Furthermore, these materials are known for their high wear and abrasion resistance, making them suitable for the soles of footwear products.

[0206] Polyamide (PA), and especially fiber-reinforced PA, polyurethane (PU), and thermoplastic polyurethane (TPU), exhibit good resistance to oil, grease, and a wide range of chemicals. They also possess good weather and aging resistance. The use of fiber-reinforced polyamide (PA), particularly where fibers enhance the material's strength and stiffness, can lead to improved sole performance and durability. Furthermore, PA, PU, ​​and TPU are thermoplastics and can be easily molded into intricate shapes and designs, enabling the production of complex and precise components. Additionally, as thermoplastics, these materials can often be melted down and reused, contributing to waste reduction and sustainability efforts.

[0207] It is noted that a variety of materials can also be injected. This can be done simultaneously or at different times. Materials injected into the Mold 100 can have different states or conditions to suit different parts of the sole or to achieve specific properties. Possible states or conditions of these materials may include one or more of the following: a rigid solid state (e.g., used for structural parts such as heels and hard soles), a flexible solid state (e.g., used for uppers, linings, and flexible parts of the sole), a foamed solid state (e.g., for lightweight and cushioning elements, used for midsoles and insoles (e.g., foamed EVA, foamed polyurethane)), a gel state (this can provide superior cushioning and comfort, often used in insoles and inserts (e.g.,Silicone gel), a viscoelastic state (this can provide both cushioning and support, used for performance insoles (e.g., memory foam)), an elastomeric state (this can provide highly flexible and stretchable properties, used for components that require frequent deformation and recovery (e.g., rubber outsoles, TPU)), a composite state (e.g., a reinforced composite state: this can be reinforced with fibers such as glass or carbon, used for parts that require high strength and durability (e.g., thighs, arch supports)), a thermoformable state (e.g., this can become malleable when heated, allowing for a customized fit (e.g., certain types of PU and TPU)). The material can additionally or alternatively be biodegradable / bio-based (this can provide an environmentally friendly option used in sustainable footwear (e.g., PLA, PHA)).The material may be dyed / pigmented (e.g., used for aesthetic and branding purposes), coated / laminated (e.g., surface-treated: materials with coatings for improved properties such as water resistance, abrasion resistance, or aesthetic coatings), or antimicrobial / antifungal (e.g., materials treated with agents to prevent microbial or fungal growth, used in insoles and linings).

[0208] In various examples, the footwear item manufactured as proposed here can be used additionally or alternatively for any type of sporting activity. It has been found that the advantages of the footwear item described here are particularly pronounced when applied to a sports shoe used during sporting activities, especially football or similar sports.

[0209] It is noted that the term "sporting activity" or "sporting activities" is to be understood as including one or more and / or any combination of at least the following non-exhaustive list: aerobics, exercise, running, hiking, climbing, group fitness classes, walking, cycling, yoga, soccer, tennis, football, basketball, training, volleyball, gymnastics, weightlifting, cross-training, baseball, softball, rugby, field hockey, wrestling, squash, track and field (such as sprinting, long jump, high jump), cross-country skiing. stollen cavity for a mold

[0210] One aspect of the invention relates to a stud cavity for a mold as described herein, wherein the mold is used to manufacture a sole for a footwear article, in particular for a sports shoe such as a football boot: a.) wherein the stud cavity is configured to receive a first stud; and b.) wherein the stud cavity is configured to receive a second stud which is different from the first stud.

[0211] In this way, the stave cavity for a mold addresses one or more challenges mentioned in the prior art section by introducing a modular design that allows for the provision of various staves, such as staves with different shapes, within a single stave cavity. By integrating the function for exchanging staves within the stave cavity for a mold, the proposed stave cavity significantly reduces the labor intensity associated with opening numerous conventional molds and the associated high investment costs of currently known molds.

[0212] This stud cavity for a mold, as proposed here, stems from an initiative to consolidate the number of molds that need to be designed and built, thereby increasing workload efficiency and minimizing overall business investment. In particular, the stud cavity proposed here can optimize the mold design process by allowing a single mold, which can be called a base mold, to be used for multiple stud shapes serving, for example, several playing field types. This contrasts with prior art practices where each playing field type required a different mold design. The improved stud cavity for a mold, as proposed here, accommodates different stud types based on playing field requirements.This advancement not only simplifies the mold-making process but also leads to a reduction in the overall investment for new molds.

[0213] In particular, one advantage of the stud cavity is that the mold used to create soles compatible with various stud configurations can be employed. This means that a single sole design can accommodate different playing surfaces or conditions by allowing the wearer to switch between different types of studs. Furthermore, manufacturers could benefit from reduced costs, as the same mold could be used to produce soles for an entire range of shoes designed for different sports or terrains, eliminating the need for a separate mold for each stud configuration. Additionally, footwear can be easily personalized based on specific needs, such as playing surface (soft, firm, artificial turf), weather conditions, or personal preference, simply by changing the studs.

[0214] It is noted that one or more of the embodiments and / or examples described herein may be combined with further aspects as described herein, and details of the embodiments and / or examples may also be omitted, as a person skilled in the art understands. The scope of protection is determined by the claims and is not limited by the embodiments and / or examples disclosed in the preceding figures. 6. List of reference symbols used 100 molds for manufacturing a sole for a footwear item- Stand 105a first molded part, e.g. upper molded part 105b second molded part, e.g. lower molded part 130 tunnel cavity 130a Tunnel Cavity 130b Tunnel Cavity 130c tunnel cavity 130d tunnel cavity 134 Side surface of the tunnel cavity 134' Side surface of the tunnel cavity 140 retaining element 140' retaining element 140a Holding element 140b Holding element 140c holding element 150 Stollen 150a Stollen 150b Stollen 150c Stollen 151 recess 151a Recess 151b Recess 151c recess 152 Top 152a Top 152b Top 152c Top 153 Underside 153a Underside 153b Underside 153c Underside 154 Side surface of the tunnel 154' Side surface of the tunnel 200 methods for manufacturing a sole for footwear 210 Providing a form 215 Arranging a first tunnel into the at least one tunnel cavity 220 Injecting a material 230 Holding the first tunnel in the tunnel cavity 240 Using the mold to produce a second sole for a footwear item TB Top to Bottom Axis QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 4 644 672 A

[0008] EP 3 170 653 B1

[0009] US 3 187 073 A

[0010] US 8 206 630 B2

[0011] US 3 452 378 A

[0012]

Claims

[1] Mold (100) for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, the mold (100) comprising: a. a first molded part (105a) and a second molded part (105b), which are preferably detachably connectable to each other; b. a tunnel cavity (130, 130a, 130b, 130c, 130d) wherein the tunnel cavity (130, 130a, 130b, 130c, 130d) is configured to accommodate a first tunnel (150, 150a, 150b, 150c); c. wherein the adit cavity (130, 130a, 130b, 130c, 130d) is configured to accommodate a second adit (150, 150a, 15ob, 150c) which is different from the first adit (150, 150a, 15ob, 150c). [2] Form (100) for manufacturing a sole for a footwear article according to the preceding claim, wherein the stud cavity (130, 130a, 130b, 130c, 130d) is not completely filled with the first stud (150, 150a, 15ob, 150c) or the second stud (150, 150a, 15ob, 150c) when the first stud (150, 150a, 150b, 150c) or the second stud (150, 150a, 150b, 150c) is received in the stud cavity (130, 130a, 130b, 130c, 130d). [3] Mold (100) for manufacturing a sole for a footwear article according to one of the preceding claims, wherein the first stud (150, 150a, 15ob, 15oc) differs from the second stud (150, 150a, 15ob, 15oc) in one or more of the following: a volume; a suitability for a different type of ground, such as solid ground, artificial ground, hard ground; a length; a width; a diameter; a shape; a surface roughness; a material property, such as a stiffness, a hardness and / or an elasticity; a material. [4] Form (100) for manufacturing a sole for a footwear article according to one of the preceding claims, wherein the stud cavity (130, 130a, 130b, 130c, 130d) further comprises a retaining element (140, 140a, 140b, 140c) configured to substantially counteract movement of the first stud (150, 150a, 150b, 150c) and / or the second stud (150, 150a, 150b, 150c) arranged in the stud cavity (130, 130a, 130b, 130c, 130d). [5] Mold (100) for manufacturing a sole for a footwear article according to the preceding claim, wherein the retaining element (140, 140a, 140b, 140c) has the shape of a pin. [6] Form (100) for manufacturing a sole for a footwear article according to the preceding claims 4 or 5, wherein the retaining element (140, 140a, 140b, 140c) is arranged in the stud cavity (130, 130a, 130b, 130c, 130d). [7] Mold (100) for manufacturing a sole for a footwear article according to any one of the preceding claims 4 to 6, wherein the retaining element (140, 140a, 140b, 140c) is a separate element which can be detachably attached to the stud cavity (130, 130a, 130b, 130c, 130d). [8] Mold (100) for producing a sole for a footwear article according to any of the preceding claims, wherein the first stud (150, 150a, 150b, 150c) and / or the second stud (150, 150a, 150b, 150c) has a top surface (152) for bonding with injected material in the mold (100) in which the stud cavity (130, 130a, 130b, 130c, 130d) is used, and a bottom surface (153) which is substantially opposite the top surface (152), wherein the bottom surface (153) serves as the ground contact during the ordinary use of the footwear article produced with the mold (100). wherein the first tunnel (150, 150a, 150b, 150c) and / or the second tunnel (150, 150a, 150b, 150c) has a pointed shape when viewed from the top (152) to the bottom (153), or wherein the first tunnel (150, 150a, 150b, 150c) and / or the second tunnel (150, 150a, 150b, 150c) has one or more substantially straight side surfaces when viewed from the top (152) to the bottom (153). [9] Form (100) for producing a sole for a footwear article according to the preceding claim, wherein the upper surface (152) has a circumference, preferably a diameter, which is substantially flush with a circumference, preferably a diameter, of an upper surface of the stud cavity. [10] Form (100) for manufacturing a sole for a footwear article according to any of the preceding claims, if additionally dependent on claim 4, wherein the first stud (150, 150a, 150b, 150c) and / or the second stud comprises a recess (151, 151a, 151b, 151c, 151d) configured to engage with the retaining element (140, 140a, 140b, 140c), wherein the retaining element (140, 140a, 140b, 140c) preferably comprises a projection; and / or wherein the first tunnel (150, 150a, 150b, 150c) and / or the second tunnel (150, 150a, 150b, 150c) includes a projection configured to engage with a recess (151, 151a, 151b, 151c, 151d) of the retaining element (140, 140a, 140b, 140c). [11] Mold (100) for manufacturing a sole for a footwear article according to the preceding claim, wherein the recess (151, 151a, 151b, 151c, 151d) of the first stud (150, 150a, 150b, 150c) and / or of the second stud (150, 150a, 150b, 150c) are designed substantially in accordance with the retaining element (140, 140a, 140b, 140c), preferably with the projection of the retaining element (140, 140a, 140b, 140c), to provide a positive locking connection; and / or wherein the projection of the first stud (150, 150a, 150b, 150c) and / or of the second stud (150, 150a, 150b, 150c) is designed substantially in accordance with the recess (151, 151a, 151b, 151c, 151d) of the retaining element (140, 140a, 140b, 140c) to provide a positive locking connection. [12] Mold (100) for manufacturing a sole for a footwear article according to the preceding claims 10 or 11, wherein the recess (151, 151a, 151b, 151c, 151d) has varying circumferences, preferably varying diameters, along an axis parallel to an axis viewed from top to bottom of the first stud (150, 150a, 150b, 150c) and / or the second stud (150, 150a, 150b, 150c). [13] Form (100) for manufacturing a sole for a footwear article according to the preceding claim, wherein the varying circumferences, preferably varying diameters, decrease in the direction from top to bottom along the axis from top to bottom of the first stud (150, 150a, 150b, 150c) and / or the second stud (150, 150a, 150b, 150c). [14] Mold (100) for producing a sole for a footwear article according to one of the preceding claims, wherein the stud cavity (130, 130a, 130b, 130c, 130d) is arranged in the second mold part (105b). [15] Mold (100) for producing a sole for a footwear article according to one of the preceding claims, if additionally dependent on claim 4, wherein the retaining element (140, 140a, 140b, 140c) is an integral part with the second mold part (105b). [16] Mold (100) for producing a sole for a footwear article according to one of the preceding claims, if additionally dependent on claim 4, wherein the retaining element (140, 140a, 140b, 140c) is a separate element which can be detachably attached to the second mold part (105b). [17] Mold (100) for producing a sole for a footwear article according to one of the preceding claims, wherein the first mold part (105a) is an upper mold part (105a) when the mold (100) is used during ordinary use, and wherein the second mold part (105b) is a lower mold part when the mold (100) is used during ordinary use. [18] Mold (100) for manufacturing a sole for a footwear article according to one of the preceding claims, wherein the mold (100) further comprises a plurality of stud cavities (130, 130a, 130b, 130c, 130d), wherein each of the multiple tunnel cavities (130, 130a, 130b, 130c, 130d) is configured to accommodate a first tunnel (150, 150a, 150b, 150c), and wherein each of the multiple tunnel cavities (130, 130a, 130b, 130c, 130d) is configured to accommodate a second tunnel (150, 150a, 150b, 150c) which is different from the first tunnel. [19] Mold (100) for producing a sole for a footwear article according to the preceding claim, wherein the plurality of stud cavities (130, 130a, 130b, 130c, 130d) is distributed according to a pattern, and / or wherein at least two stud cavities (130, 130a, 130b, 130c, 130d) are arranged in an angled formation in relation to each other. [20] Mold (100) for manufacturing a sole for a footwear article according to the preceding claim, if additionally dependent on claim 4, wherein the retaining element (140, 140a, 140b, 140c) is arranged on a side surface of the stud cavity (130, 130a, 130b, 130c, 130d), wherein the retaining element (140, 140a, 140b, 140c) preferably projects into the tunnel cavity (130, 130a, 130b, 130c, 130d), wherein the retaining element (140, 140a, 140b, 140c) preferably has a pointed shape, wherein the pointed shape of the retaining element (140, 140a, 140b, 140c) is further preferably directed towards an upper surface of the tunnel cavity (130, 130a, 130b, 130c, 130d). [21] Method (200) for manufacturing a sole for a footwear article, in particular for a sports shoe such as a football boot, comprising the method (200): Providing (210) a mold (100) with a first mold part (105a) and a second mold part (105b), wherein the mold (100) comprises at least one stave cavity (130, 130a, 130b, 130c, 130d), wherein the mold (100) is preferably a mold (100) according to one of the preceding claims; Arranging (215) a first adit (150, 150a, 150b, 150c) in the at least one adit cavity (130, 130a, 130b, 130c, 130d); Injecting (220) a material into the mold (100); wherein the tunnel cavity (130, 130a, 130b, 130c, 130d) is configured to accommodate a second tunnel (150, 150a, 150b, 150c), wherein the first tunnel (150, 150a, 150b, 150c) is different from the second tunnel (150, 150a, 150b, 150c). [22] Method (200) according to the preceding claim 21, wherein, when the first tunnel (150, 150a, 150b, 150c) or the second tunnel (150, 150a, 150b, 150c) is received in the tunnel cavity (130, 130a, 130b, 130c, 130d), the tunnel cavity (130, 130a, 130b, 130c, 130d) is not completely filled with the first tunnel (150, 150a, 150b, 150c) or the second tunnel (150, 150a, 150b, 150c). [23] Method (200) according to claim 21 or 22, wherein the first tunnel (150, 150a, 150b, 150c) differs from the second tunnel (150, 150a, 150b, 150c) in one or more of the following: a volume; a suitability for a different soil type, such as solid soil, artificial soil, hard soil; a length; a width; a diameter; a shape; a surface roughness; a material property, such as a stiffness, a hardness and / or an elasticity; a material. [24] Method (200) according to any one of the preceding claims 21 to 23, wherein the method (200) further comprises: Holding (230), using a holding element (140, 140a, 140b, 140c), the first adit (150, 150a, 150b, 150c) in the adit cavity (130, 130a, 130b, 130c, 130d) to substantially counteract any movement of the first adit (150, 150a, 150b, 150c). [25] Method (200) according to any one of the preceding claims 21 to 24, wherein the sole for a footwear article is a first sole and the method (200) further comprises: Using (240) the mold (100) to manufacture a second sole for a footwear article, wherein the second sole for a footwear article differs from the first sole for a footwear article. [26] Sole for a footwear article, in particular for a sports shoe such as a football boot, the sole manufactured according to the method (200) according to any one of the preceding claims 21 to 25. [27] Sole according to the preceding claim, wherein the material injected into the mold (100) comprises one or more of the following: polyamide, PA, in particular fiber-reinforced PA, such as carbon fiber-reinforced PA, polyurethane, PU, ​​thermoplastic polyurethane, TPU.

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