Upper with film regions

Abstract

The present invention relates to an upper for an article of footwear, in particular for a sports shoe. The upper includes a first film region having a first set of characteristics, and a second film region located in a region of the upper different from the first film region and having a second set of characteristics, a first value of at least one characteristic in the second set of characteristics being different from a second value of a corresponding characteristic in the first set of characteristics. The invention also relates to a shoe, in particular a sports shoe, having such an upper.

Description

TECHNICAL FIELD

[0001] The invention relates to an upper for an article of footwear, in particular for an athletic shoe. The upper comprises a first film region having a first set of properties, and a second film region located in a region of the upper different from the first film region and having a second set of properties, at least one property of the second set of properties having a first value different from a second value of the corresponding property of the first set of properties.

[0002] The invention also relates to a shoe, in particular an athletic shoe, having such an upper. BACKGROUND

[0003] Shoes are generally described as a combination of an upper and a sole. Typically, the upper covers the area of the wearer's foot, such as the instep, toes, inner side of the foot, outer side of the foot and heel, and provides an opening to allow the wearer to step into the shoe.

[0004] Film materials have properties such as waterproofness, breathability, windproofness and elasticity, which are generally desired in the field of sportswear and shoes. These qualities make them preferred materials in several applications. Film materials are used to provide a waterproof insert for a shoe.

[0005] In shoes, such film materials are also used as an upper, but typically the entry of these shoes is difficult because this material tends to be rather voluminous. To alleviate the difficulty of entry, typically flaps of the heel and tongue are provided on the shoe to be able to exert the required force to step in.

[0006] Prior art document EP3104729B1 relates to waterproof, breathable socks, gaiters, insoles, and shoe assemblies comprising insoles. The gaiters and insoles comprise a laminate of a seamless expanded polytetrafluoroethylene ePTFE film and at least one textile. The gaiters are conformable within a range of sizes and shoe shapes and are shapeable to fit asymmetric lasts of multiple sizes and shapes. The gaiters are either shrinkable to fit, or, alternatively, are stretchable to fit asymmetric lasts having a desired size to form insoles. The comfortable gaiters eliminate the need for multiple insole sizes associated with specific shoe sizes. In embodiments where the ePTFE is seamless and continuous, the insoles eliminate the need for a waterproof seam tape, which is typically used to make the insoles waterproof. Methods of forming the socks, gaiters, and insoles are also provided.

[0007] It is therefore an object of the present invention to provide a new upper for a shoe which minimizes or eliminates the problems described above. It is a further object of the present invention to provide an upper with which a shoe can be easily put on and with which the shoe does not slip during use. Furthermore, it is an object of the present invention to propose an upper with which the shoe is waterproof and comfortable even during intensive use. SUMMARY

[0008] The above objects are at least partially achieved by embodiments of the present application. Among others, preferred embodiments are provided and other suitable aspects of the present application are described throughout the disclosure of the present application. It is to be noted that the headings in the present disclosure are provided only for the purpose of helping to maintain an overview during reading. The headings do not imply that features of individual embodiments cannot be combined.

[0009] Definitions

[0010] As used herein, the term "membrane" can refer to a specialized layer or coating applied to a fabric to impart specific functional properties, such as water resistance, breathability, or insulation. Membranes are thin, flexible, and are typically made of polymers or other synthetic materials. They are designed to alter the performance characteristics of a fabric, enhancing its functionality for various applications. They can be used as a selective filter, integrated into a fabric structure to perform a specific filtering function. Membranes can be applied to natural and synthetic fabrics, and are commonly used in outdoor apparel, sportswear, and technical textiles.

[0011] As used herein, the term "elasticity" can refer to the property of a material to allow it to return to its original shape and size after being stretched or deformed. It is a measure of the degree to which a material can withstand deformation and how well it recovers its initial form upon removal of the applied force.

[0012] The term "vapor permeability" or "water vapor permeability" (WVP), as used herein, is also related to moisture vapor transmission rate (MVTR), is a measure of the ability of a material to allow water vapor to pass through it. It quantifies the rate at which water vapor diffuses or permeates through a material per unit time and unit area under specific conditions. Vapor permeability can be typically expressed in terms of the Thermal Evaporative Resistance (RET) value defined by the ISO 11092 standard. This vapor permeability can also be expressed in units such as grams per square meter per day (g / m 2 / day) or grams per square meter per hour (g / m 2 / hour). Vapor permeability is measured using various standardized test methods, such as ASTM E96.

[0013] As used herein, the term "water resistance" can refer to the property of a material or structure to prevent the passage or penetration of liquid water. It indicates the ability of a material to act as a barrier to prevent water from entering, thereby protecting the underlying surface or contents from moisture damage. Water resistance is typically quantified and evaluated by standard test methods, such as hydrostatic pressure testing (e.g., ASTM D5385 for roofing membranes). This test evaluates the ability of a material to withstand water penetration under controlled laboratory conditions.

[0014] As used herein, the term "zone" can refer to a distinct area (or region) defined by a particular characteristic, boundary, or criteria.

[0015] As used herein, the term "eye stay" can refer to the portion of the upper through which the laces pass. It is typically located in the vamp area of the shoe, extending from the toe area to the throat line (the opening in the shoe through which the foot enters). The eye stay is composed of a series of reinforced holes, loops, or eyelets through which the laces pass to secure the shoe to the foot.

[0016] Upper for an article of footwear

[0017] In one aspect, there is provided a shoe upper for an article of footwear, in particular for an athletic shoe, the shoe upper comprising: a first film region having a first set of properties and a second film region located in a region of the shoe upper different from the first film region and having a second set of properties, wherein a first value of at least one property in the second set of properties is different from a second value of a corresponding property in the first set of properties.

[0018] In this way, the incorporation of two film regions with different sets of property values in the upper of an athletic shoe lies in the ability to customize performance attributes, adapt to variable conditions, improve comfort and performance, enhance durability and longevity, and optimize weight and flexibility. This results in a shoe that provides superior functionality, comfort, and versatility to the wearer.

[0019] For example, by incorporating multiple film regions with different property values, the shoe can be designed to provide customized performance in different regions of the upper. For example, the second film region can have a higher level of water resistance or breathability compared to the first film region, allowing for targeted protection or ventilation where needed. This allows for targeted optimization based on the needs of different parts of the foot and the intended use of the shoe.

[0020] The variation in property values between the two film regions also enables the shoe to adapt to changing environmental conditions or wearer preferences. For example, during high intensity activities where ventilation is critical, a breathable film region can provide airflow to keep the foot cool and dry. Conversely, in wet or extremely cold conditions, the water resistant or insulating properties of the other film region can provide protection and comfort.

[0021] By selectively adjusting the film properties based on the expected stresses and demands in different regions of the shoe, the overall durability and longevity can be improved. This can help to mitigate wear and tear, extending the life of the shoe, particularly in high wear areas or under challenging conditions.

[0022] Customizing the membrane property values allows for better optimization of weight and flexibility in the upper. Lighter, more flexible membranes can be used in areas where agility and freedom of movement are critical, while denser, more robust membranes can be used in areas where increased support or protection is needed.

[0023] Furthermore, the ability to change the membrane properties in different areas of the upper enables targeted performance enhancements to meet specific user needs or preferences. For example, it is possible to precisely adapt areas that need extra waterproofing for outdoor activities or areas that need improved breathability for indoor sports.

[0024] Combining different membrane areas with different property values opens up possibilities for innovative design concepts and product differentiation. Manufacturers can explore new approaches to footwear design, offering consumers unique features and benefits that meet their evolving needs and preferences.

[0025] In summary, having different first and second membrane areas in the upper of a sports shoe, with different property values, offers opportunities for customization, performance optimization, durability enhancement, and innovative design, ultimately contributing to an improved wearing experience for the user.

[0026] In preferred embodiments of the upper as described herein, the position of the first membrane area relative to the position of the second membrane area can be configured to provide different functionalities to the upper when the upper is in use, i.e. when the upper is integrated in a shoe. For example, the first and second membrane areas can be placed so that when a user puts on a shoe (e.g. a sock-type shoe) having an upper according to the invention, stepping in becomes facilitated. The first and second membrane areas can also be placed so that the shoe having an upper according to the invention provides reliable retention even during intensive use.

[0027] In preferred embodiments of the upper as described herein, the first set of properties and the second set of properties include at least one of elasticity, vapor permeability, and waterproofness.

[0028] The technical advantage of incorporating films with different elastic properties into the upper of an athletic shoe provides customized flexibility, enhanced support and stability, improved energy return, dynamic fit adaptability, durability, resilience, and responsive cushioning. For example, by incorporating films with different elastic properties in specific areas of the upper, the shoe can provide customized flexibility - adapting to the needs of different foot motions and activities. For example, areas that require greater flexibility for natural foot motion, such as the forefoot or ankle, can feature films with higher elasticity, promoting a more comfortable and responsive fit. Additionally, the ability to vary the elasticity in different film areas allows for targeted support and stability where needed. Areas that require greater support, such as the midfoot or heel, can feature films with lower elasticity to provide a secure and stable platform, reducing the risk of overpronation or injury during dynamic motion. Furthermore, films with higher elastic properties can help improve energy return in the upper, enhancing propulsion and efficiency during activities such as running or jumping. The elastic resilience of the films helps store and release energy with each foot strike, promoting more dynamic and responsive performance. Additionally, the elasticity of the films allows the upper to dynamically adapt to the changing contours of the foot during motion. This promotes a comfortable and supportive fit that accommodates natural foot swelling and contraction, reducing the likelihood of discomfort or pressure points, especially during prolonged wear or high-intensity activities. Moreover, films with appropriate elastic properties can contribute to the overall durability and elasticity of the upper. By providing sufficient stretch and recovery capabilities, the films can withstand repeated flexing and stretching without losing their shape or structural integrity, ensuring long-lasting performance and comfort. Furthermore, the elasticity in the upper can also contribute to responsive cushioning, especially when combined with other cushioning materials or components. The elastic properties of the films help distribute and absorb impact forces more effectively, enhancing overall comfort and reducing fatigue during prolonged activities.

[0029] The technical advantage of integrating different film regions with different vapor permeability values in the upper of an athletic shoe provides targeted moisture management, enhanced breathability, improved comfort, and long-term durability, ultimately supporting optimal performance and user satisfaction.

[0030] The technical advantage of incorporating different first and second film regions with different waterproofing properties in the upper of an athletic shoe allows for targeted waterproofing, enhanced breathability, flexible design options, improved protection in critical areas, enhanced durability, and adaptability to changing conditions. This approach ensures that the shoe provides optimal performance and comfort while effectively protecting the foot from water ingress in challenging environments.

[0031] In a preferred embodiment of the shoe upper as described herein, the first film region is more elastic than the second film region and is located in the ankle region and / or the heel region and / or the tongue region of the shoe upper in use. The arrangement of the first film in the ankle region provides for easy entry, while the less elastic second film is located on the remainder of the shoe upper to provide the necessary retention.

[0032] When the first value of elasticity is comprised between 10% and 120%, preferably between 20% and 100%, more preferably between 30% and 80%, a good balance between easy entry and sufficient retention is provided. In the range of elasticity between 80% and 120%, a good material recovery must be had to ensure sufficient retention. When the elasticity is between 10% and 30%, depending on the pattern of the first and second films, a comfortable insertion of the foot is still possible. In all these cases, the second value of elasticity is comprised between 1% and 30%, preferably between 1% and 20%, more preferably between 1% and 10%. Such values of elasticity can be provided by film materials such as polyvinylidene fluoride (PVDF), polychlorotrifluoroethylene (PCTFE or PTFCE), polyphenylene sulfide (PPS), ethylene-tetrafluoroethylene (ETFE), polyformaldehyde (PFA), polyvinyl fluoride (PVF), polyether ether ketone (PEEK), polyethylene naphthalate (PEN), fluorinated ethylene propylene (FEP), polyethylene terephthalate (PET, PETE), polytetrafluoroethylene (PTFE), polyetherimide (PEI), nylon 6 or polycaprolactam and polyimide (Kaption, PI). These materials generally have different film thicknesses and different vapor permeabilities, so they can be chosen according to specific needs.

[0033] The improved water resistance of the shoe upper can for example be obtained by placing a first film region with a higher water resistance in the shoe upper in a suitable location, for example the lower surface of the shoe upper which in use is connected to the sole, or the end of the shoe upper which in use is directed towards the ground, and placing a lighter second film region on the remainder of the shoe upper, for example on the part which in use is directed towards the inside of the foot. The area which is most easily in contact with water is the bite line between the bottom unit and the shoe upper, whereby in this area a high water resistance must be had. For example, the first film region with a higher water resistance than the second film region is closer to the lower surface of the shoe upper in use.

[0034] Of course, the skilled person understands that a combination of functionalities can be obtained when the first membrane region has a higher elasticity and a higher vapor permeability, and the second membrane region has a higher water resistance. Typical first values of vapor permeability ensuring sufficient vapor exchange at usual wearing temperatures include between 3 and 15 RET, preferably between 6 and 13 RET, and matching second values of vapor permeability can include between 3 and 15 RET, preferably 6 to 13 RET.

[0035] Exemplary membranes are typically made of synthetic polymers, such as polypropylene, polyethylene, polyamide (Nylon) or polytetrafluoroethylene (PTFE) or expanded PTFE (ePTFE). These materials can be designed to have other specific properties, such as puncture resistance, stub resistance, hydrophilicity, hydrophobicity, chemical resistance, and mechanical strength, to suit different filtration requirements. Exemplary materials for membranes are polyvinylidene fluoride (PVDF), polychlorotrifluoroethylene (PCTFE or PTFCE), polyphenylene sulfide (PPS), ethylene-tetrafluoroethylene (ETFE), polyformaldehyde (PFA), polyvinyl fluoride (PVF), polyether ether ketone (PEEK), polyethylene naphthalate (PEN), fluorinated ethylene propylene (FEP), polyethylene terephthalate (PET, PETE), polytetrafluoroethylene (PTFE), polyetherimide (PEI), Nylon 6 or polycaprolactam, and polyimide (Kaption, PI).

[0036] In preferred embodiments of a shoe upper as described herein, the shoe upper has a connecting region between the first and second membrane regions.

[0037] The connecting region between the first and second membrane regions provides several technical advantages, such as enhanced stability, flexibility, customized fit, breathability, seamless aesthetics, and durability.

[0038] For example, the connecting region serves as a structural link between the first and second membrane regions, providing stability to the entire shoe upper. This helps maintain the shape of the shoe and prevents deformation during movement, thereby improving overall comfort and support to the wearer.

[0039] Furthermore, while providing stability, the connecting region allows the shoe upper to have flexibility, particularly in areas where the foot naturally bends during walking or running. This facilitates a more natural range of motion and reduces discomfort or restriction of foot movement.

[0040] Furthermore, the connection region can be designed to accommodate variations in foot shape and size, thereby ensuring comfort and customized fit for the wearer. By adjusting the length, width, or elasticity of the connection region, shoe manufacturers can optimize comfort and performance for different foot profiles.

[0041] Furthermore, the connection region can incorporate breathable materials or ventilation channels to improve airflow and moisture management within the upper. This helps to regulate temperature and reduce the buildup of sweat, keeping the foot dry and comfortable during wear.

[0042] Additionally, by reinforcing the connection between the first and second film regions, the connection region improves the durability and lifespan of the upper. This helps to prevent premature wear and tear, ensuring that the shoe maintains its structural integrity over time.

[0043] When the first film region is made of a first film and the second film region is made of a second film, the connection region can be the same film that assembles the first film and the second film. An advantage of combining two different films in the upper is that the different film fabrics can be easily stored and the film fabrics can be easily selected. Further, it is easy to adapt the style of the upper - for example for different shoe sizes and when modifications are needed.

[0044] To fix the first film to the second film, the junction of the connection region can comprise at least one of an adhesive, a tape, a welding laser connection, a vibration connection, an infrared (IR) connection, an ultrasonic connection, a hot bar connection / heat press connection, a seam using a thread. Of course, the choice of the type of junction will also depend on the choice of the films, as not every film is suitable for any type of junction. Linear fixed junctions are provided over junctions with punctiform connections (e.g. threads) as these junctions transfer forces in a more uniform way over the range of the upper and thus do not tear the film at the junction. In addition, linear fixations are typically already waterproof. In contrast, to make threads waterproof, typically additional measures are needed. It is still possible that threads are desired as these threads can transfer higher forces at locations that are subjected to heavy strain.

[0045] In a preferred embodiment of the upper described herein, the upper can be made of a single film, rather than two different films that are joined together. In this case, the first film region is a first zone within the film, the second film region is a second zone within the same film, and the connection region is a third zone within the film that connects the first and second zones. Different measures can be taken to ensure that the first and second film regions differ in at least one property value. The different zones can have, for example, different thicknesses, different densities, different material compositions, or combinations thereof.

[0046] The first and second film regions can comprise a laminate structure having a carrier and a film layer. The carrier can comprise at least one of an engineered mesh, a knitted fabric (in particular a weft or warp knitted fabric) or a woven fabric. Suitable materials for the carrier are polyurethane (PUR, PU), polyamide (PA), thermoplastic polyurethane (TPU) and polytetrafluoroethylene (PTFE). Suitable materials for the film layer are polyvinylidene fluoride (PVDF), polychlorotrifluoroethylene (PCTFE or PTFCE), polyphenylene sulfide (PPS), ethylene-tetrafluoroethylene (ETFE), polyoxymethylene (PFA), polyvinyl fluoride (PVF), polyether ether ketone (PEEK), polyethylene naphthalate (PEN), fluorinated ethylene propylene (FEP), polyethylene terephthalate (PET, PETE), polytetrafluoroethylene (PTFE), polyetherimide (PEI), nylon 6 or polycaprolactam and polyimide (Kaption, PI).

[0047] The single film has the advantage that there is no joint between the two regions with different properties. On the other hand, producing such a single film is more complex, the machines required are more expensive and it is more difficult to adapt the shape of the first and second regions. Each time a shoe upper for a different size of shoe is produced, the machine producing the film needs to be updated to the required gauge.

[0048] However, in some embodiments, the additional benefits can outweigh the more complex production method, i.e. precise elasticity can be obtained on zones with different water resistance. The desired properties can be precisely controlled: for example, by choosing a suitable carrier for the film material and adapting it, for example by a (screen) printing process on the carrier, different thicknesses can be used in different regions, the elasticity can be precisely determined. In such embodiments, the carrier of the film, and in particular the engineered mesh, the knitted fabric (in particular a weft or warp knitted fabric) or the woven fabric, is an elastic fabric. The use of an elastic fabric in a shoe upper provides technical advantages such as improved fit, enhanced comfort, flexibility, breathability, adaptability, reduced weight, seamless construction and aesthetic appeal. These benefits contribute to making the shoe comfortable, supportive, versatile and visually appealing for the wearer.

[0049] In some embodiments of the shoe upper, the first film region is inserted into the second film region. The first film region can have a U-shape, a rectangular shape, a trapezoidal shape, a triangular shape or a V-shape, depending on the environment.

[0050] The use of these various shapes provides technical advantages such as customised fit, optimised support, enhanced flexibility, improved breathability, enhanced durability and seamless integration.

[0051] For example, a U-shape or rectangular shape can provide ample space for wider feet, while a V-shape or triangular shape can accommodate narrower feet. This customization enhances overall comfort and support for the wearer.

[0052] Additionally, a trapezoidal shape can provide extra support for the arch, while a triangular shape can concentrate on the forefoot or heel. This helps to improve stability and reduce fatigue during activity.

[0053] By incorporating shapes that mimic the natural contours of the foot, the membrane can provide enhanced flexibility and freedom of movement. This promotes a more natural gait and reduces restrictions, especially during dynamic movements like running or jumping.

[0054] Changing the shape of the membrane can create openings or channels to increase airflow within the upper. This enhances breathability and moisture management, reducing the risk of overheating and discomfort during prolonged wear.

[0055] Additionally, certain shapes, such as trapezoidal or rectangular, can provide enhanced structural integrity and resistance to wear and tear. This improves the lifespan of the membrane and ensures long-term performance, even under harsh conditions.

[0056] By utilizing shapes that seamlessly integrate with other components of the upper, such as overlays or reinforcements, the membrane can provide a smooth and streamlined appearance. This minimizes potential friction points and enhances the overall comfort of the wearer.

[0057] In a preferred embodiment of the upper as described herein, the first membrane region inserted into the second membrane region is U-shaped, and the upper further comprises an outer layer that substantially overlaps the first membrane region and is attached to the second membrane region near or on top of the connection region. In this way, the first U-shaped membrane is doubled-up by the outer layer substantially overlapping the first membrane region to enhance the step-in properties of the upper while providing additional protection for the user's foot.

[0058] In an alternative to the preferred embodiment described above, another preferred embodiment has a first membrane region inserted into the second membrane region that is U-shaped, and the upper further comprises an inner layer that substantially overlaps the first membrane region and is attached to the second membrane region near or below the connection region. With this configuration, a seam can be visible on the outward-facing surface of the upper between the first and second membranes. The first U-shaped membrane is doubled-up by the inner layer in the inward-facing surface.

[0059] In both of the aforementioned preferred embodiments, the puncture resistance of the membrane used becomes critical as the overlapping elements need to be attached to at least one membrane.

[0060] In preferred embodiments of the footwear described herein, the upper further includes a lace. This can complement the upper to provide a tighter fit, and in particular to prevent heel slippage. The lace can be attached to at least two eyestay elements, each eyestay element holding a loop of the lace proximate to a fixed point on the upper for each eyestay element. Allowing the lace to be attached to multiple eyestay elements proximate to fixed points on the upper provides technical advantages such as improved fit customization, enhanced stability and support, reduced pressure points, minimized slippage, enhanced durability, and improved aesthetic appearance. These benefits contribute to the footwear being comfortable, supportive, durable, and visually appealing to the wearer.

[0061] In preferred embodiments of the footwear described herein, the upper can be laceless. This particular type of footwear provides comfort, aesthetics, performance, and innovative design, providing a contemporary alternative to traditional laced footwear while meeting the various needs and preferences of wearers. For example, laceless footwear does not require lacing and adjustment of a lace, providing a convenient slip-on or closure system. This saves time and effort, making the footwear ideal for quick changes and on-the-go activities. Users can easily put them on and take them off without having to deal with tangled or untied laces. Furthermore, the laceless design can provide better performance in certain activities, particularly those that require agility, responsiveness, and quick movements. The absence of a lace eliminates the risk of tripping or interference during dynamic movements, providing a smoother and more consistent experience for athletes and active individuals.

[0062] In preferred embodiments, the at least two eyestay elements are fixed proximate to or to the connection region of the upper. Thus, forces caused by the lace are better distributed, as in many cases the connection region is already reinforced by additional material and junctions. It is also advantageous to hold the loops of the lace proximate to the connection region of the upper.

[0063] When the upper includes an outer layer, the eyestay elements can be fixed to the outer layer, preferably along the edge of the outer layer that is fixed to the second membrane. Fixing the eyestay elements to the outer layer of the footwear, preferably along the edge of the outer layer, provides technical advantages such as enhanced durability, improved stability, optimized fit customization, reduced friction and irritation, and improved waterproofing. For example, the additional reinforcement and durability to the attachment points help prevent damage or detachment of the eyestay elements, ensuring long-term performance and structural integrity of the footwear. Furthermore, placing the eyestay elements along the edge of the outer layer allows for more precise and customizable lacing configurations. The wearer can adjust the tension and distribution of the lace to achieve their desired fit and comfort, thereby enhancing overall performance and support.

[0064] To further prevent the heel from slipping, it has proven advantageous to have, in use, the last eyelet element located at the rear of the upper, i.e. in the middle of the ankle region of the upper.

[0065] In a preferred embodiment of the upper as described herein, the upper further comprises an upper eyelet support element positioned adjacent to the at least two eyelet elements and maintaining a loop of the lace at a distance of the fixation point of the at least two eyelet elements. While lacing the lace to the last eyelet element in the ankle region of the foot significantly improves the fit of the upper, e.g. during intensive activities, it can lead to an uncomfortable fit when used for less intensive activities. In this case, the upper eyelet support element, which is positioned adjacent to the at least two eyelet elements and maintains a loop of the lace at a distance of the fixation line, can improve the retention of the upper without sacrificing comfort.

[0066] In some embodiments, it can be advantageous to have a third film region with a third set of properties different from the first and second set of properties. This allows for a more fine-tuned adjustment of the upper properties. The advantages explained above for the film apply to this third film region as well.

[0067] Another aspect of the invention relates to a shoe comprising an upper as described above. The shoe can be, for example, a running shoe or trail running shoe or an outdoor shoe. BRIEF DESCRIPTION OF DRAWINGS

[0068] The invention will be described in more detail below with reference to the following drawings:

[0069] Figure 1 An upper according to an embodiment of the invention is shown.

[0070] Figure 2 An upper with eyelet elements according to an embodiment of the invention is shown; and

[0071] Figure 3 An upper with eyelet elements and an upper eyelet support element according to another embodiment of the invention is shown. DETAILED DESCRIPTION

[0072] Below, only some possible embodiments of the invention will be described in detail. The invention is not limited to these, and many other embodiments are applicable without departing from the scope of the invention. The presented embodiments can be modified in several ways and combined with each other as long as compatible, and certain features can be omitted as long as they do not seem necessary. In particular, the disclosed embodiments can be modified by combining certain features of one embodiment with one or more features of another embodiment.

[0073] It should be understood that all the features of the aspects / embodiments described are not necessarily required to practice the techniques provided by the present disclosure, which are defined by the subject matter of the claims. The disclosed aspects / embodiments can be modified by combining some features of one aspect / embodiment with one or more features of another aspect / embodiment. In particular, a person of skill in the art will recognize that a feature and / or functional element of one aspect / embodiment can be combined with a technically compatible feature and / or functional element of any other aspect / embodiment of the present disclosure, as long as the resulting combination falls within the definition of the present disclosure.

[0074] While the following embodiments are primarily described with reference to uppers of articles of footwear, particularly uppers of athletic shoes, those skilled in the art will recognize that the teachings in accordance with the present disclosure can be equally applied to a number of different technical fields and / or use cases. For example, the film approach can also be used for: outdoor clothing, such as outerwear, e.g., waterproof jackets, soft shell jackets, ski jackets or snowboard jackets, rain pants, 3-in-1 jackets, mountaineering shells, or ponchos; and technical fabrics, such as gloves, tent shelters, or backpacks and bags; to provide specific performance characteristics, such as waterproofing, windproofing, and breathability.

[0075] Throughout the drawings and specification, like reference numerals refer to like elements. For the sake of clarity and conciseness, certain features, portions, elements, aspects, components and / or steps of some embodiments are presented without undue detail, when such detail would be apparent to those skilled in the art in view of the teachings herein, and / or when such detail would obfuscate the more pertinent aspects of the embodiments.

[0076] Reference is also made to the explanations in the introductory part, as the person of skill in the art will understand and / or in order to avoid redundancy, which also apply to the detailed description below. Furthermore, not all features, portions, elements, aspects, components and / or steps are explicitly indicated by reference numerals for the sake of brevity and clarity. This applies in particular to cases where the person of skill in the art recognizes that these features, portions, elements, aspects, components and / or steps exist in multiple.

[0077] Description of the Drawings

[0078] Figure 1 An upper according to an embodiment of the present disclosure is shown. The upper comprises a first film region 1 having a first set of properties, and a second film region 2 located in a region of the upper different from the first film region and having a second set of properties, at least one property of the second set of properties having a first value different from a second value of a corresponding property of the first set of properties.

[0079] Figure 1 The inner side of the upper, i.e. the side pointing towards the inside of the shoe, is shown in a semi-finished state, wherein the connection of the upper at the heel has not yet been completed.

[0080] In this embodiment, two different films are used. The first film area 1 is made of a first film 1’ and the second film area 2 is made of a second film 2’. The first film 1’ located in the tongue area of the upper is more elastic than the second film 2’ located at the bite line between the sole and the upper. Thus, the second film 2’ is more waterproof than the first film 1’, i.e. has a higher waterproofness.

[0081] The two films are connected to each other in the connection area 3 by a joint 3’. In the present case, a seam tape made of TPU, PU, PA, TPU and / or PTFE is used.

[0082] In addition, Figure 1 The upper of the shoe comprises an outer layer 7 which overlaps the first film 1’ of the upper. The outer layer does not have the function of holding the user’s foot inside the shoe. This function is ensured by the first film 1’ and the second film 2’. However, the outer layer 7 which overlaps the first film 1’ can provide protection against water, dust and wind. In general, the outer layer can be made of a variety of different materials, for example depending on the desired appearance of the upper, such as sanded leather, two-layer leather, full-grain leather, straps, sewing thread, zippers, foam, synthetic leather and textiles. In the case of textiles, the outer layer can be made of flat knitting, circular knitting, warp knitting, weft knitting textiles and non-woven textiles.

[0083] Figure 2 The upper according to an embodiment of the present disclosure is shown together with a sole. Figure 2 The upper of the shoe can have the same features as Figure 1 The upper of the shoe can have the same features as

[0084] In this embodiment, eyelet elements 9 are shown which are connected to the outer layer 7 of the upper near the edges of the outer layer, wherein the outer layer 7 is fixed to the second film 2’.

[0085] Each eyelet element 9 holds a loop of the shoelace 8 close to the fixing point of the respective eyelet element 9 on the upper. In order to further prevent the heel from slipping, it has proven advantageous for the last eyelet element 9’ to be located at the back of the upper, i.e. as Figure 2 and 3 is located in the middle of the ankle area of the upper.

[0086] Figure 3 The upper according to another embodiment of the present disclosure is shown together with a sole. Figure 3 The upper of the shoe can have the same features as Figure 1 or the upper of the shoe of

[0087] In Figure 3In the embodiment from Figure 2 the eyelet elements 9 are also fixed on the outer layer 7, following the edge of the outer layer 7 which is fixed to the second film 2'. In this way, the force applied to the upper by the shoelace 8 is distributed by the connection between the outer layer 7 and the second film 2' and the peak of the force is attenuated.

[0088] For less intensive activities, such as urban daily commuting, the user can choose to tighten the shoe using the upper eyelet support element 10 as shown in Figure 3 From Figure 3 it can be seen that the upper eyelet support element 10 is essentially fixed on the fixed line connecting the fixed points of the other eyelet elements 9 and 9', but it holds the loop of the shoelace 8 at a distance from said fixed line. With the upper eyelet support element 10, it is still possible to improve the holding of the upper on the heel of the user without sacrificing comfort.

Claims

1. An upper for footwear articles, particularly for athletic shoes, said upper comprising: The first membrane region (1) has the first set of characteristics; as well as The second membrane region (2) is located in a region of the shoe upper that is different from the first membrane region, and has a second set of characteristics. Wherein, the first value of at least one characteristic in the second group of characteristics is different from the second value of the corresponding characteristic in the first group of characteristics.

2. The shoe upper according to claim 1, wherein, The position of the first membrane region relative to the position of the second membrane region is configured to provide at least one of the following functions when the upper is in use: facilitating the stepping into the upper, providing reliable retention when using the upper, and improving the water resistance of the upper.

3. The upper according to any one of the preceding claims, wherein, The first set of properties and the second set of properties include at least one of elasticity, vapor permeability and water resistance.

4. The upper according to any one of the preceding claims, wherein, The first membrane region (1) is more elastic than the second membrane region (2), and wherein the first membrane region (1) is located in use at the ankle region and / or heel region and / or tongue region of the upper of the shoe.

5. The shoe upper according to claim 3 or 4, wherein, The first value of the elasticity is between 10% and 120%, preferably between 20% and 100%, more preferably between 30% and 80%, and the second value of the elasticity is between 1% and 30%, preferably between 1% and 20%, more preferably between 1% and 30%.

6. The upper according to any one of the preceding claims, wherein, The first membrane region (1) has higher waterproof properties than the second membrane region (2), and wherein the first membrane region is positioned closer to the lower surface of the shoe upper during use.

7. The upper according to any one of claims 3 to 6, wherein, The first value of the vapor permeability is between 3 RET and 15 RET, and the second value of the vapor permeability is between 3 RET and 15 RET.

8. The upper according to any one of the preceding claims, further comprising a connecting region (3) between the first membrane region (1) and the second membrane region (2).

9. The upper according to claim 8, wherein, The first membrane region (1) is made of a first membrane (1'), the second membrane region (2) is made of a second membrane (2'), and the connecting region (3) is a joint (3') for assembling the first membrane (1') and the second membrane (2').

10. The upper according to claim 9, wherein, The joint (3') of assembling the first membrane (1') and the second membrane (2') includes at least one of the following: adhesive, tape, welded laser connection, vibration connection, infrared (IR) connection, ultrasonic connection, hot rod connection / hot press connection, and seam using sewing thread.

11. The upper according to claim 10, wherein, The first membrane region (1) is the first region (1”) within the membrane (4), the second membrane region (2) is the second region (2”) within the same membrane (4), and the connecting region (3) is the third region (3”) within the membrane that connects the first region (1”) and the second region (2”).

12. The upper according to claim 11, wherein, The first region (1”) and the second region (2”) within the membrane (4) are generated by at least one of different thicknesses, different densities and / or different material compositions.

13. The upper according to any one of the preceding claims, wherein, The first membrane region (1) and / or the second membrane region (2) include a laminated structure having a carrier (5) and a membrane layer (6), wherein the carrier (5) is made of at least one of engineered mesh, knitted fabric—particularly weft-knitted or warp-knitted fabric, or woven fabric.

14. The upper according to claim 13, wherein, The engineered mesh, the knitted fabric—particularly weft-knitted or warp-knitted fabrics, or the woven fabric—is an elastic fabric.

15. The upper according to any one of the preceding claims, wherein, The first membrane region (1) is inserted into the second membrane region (2).

16. The upper according to claim 15, wherein, The first membrane region (1) inserted into the second membrane region (2) has a U-shaped, rectangular, trapezoidal, triangular, or V-shaped shape.

17. The upper according to claim 16, wherein, The first membrane region (1) inserted into the second membrane region (2) is U-shaped, and the upper also includes an outer layer (7) that substantially overlaps the first membrane region (1) and is attached to the second membrane region (2) near or on top of the connecting region (3).

18. The upper according to claim 16, wherein, The first membrane region (1) inserted into the second membrane region (2) is U-shaped, and the upper also includes an inner layer that is substantially overlapped by the first membrane region (1) and attached to the second membrane region (2) near or below the connecting region (3), wherein, optionally, the seam between the first membrane region and the second membrane region is located on the outward-facing surface.

19. The upper according to any one of the preceding claims, further comprising shoelaces (8).

20. The upper according to claim 19, wherein, The shoelace (8) is attached to at least two eyelet elements (9), wherein each eyelet element (9) holds the loop of the shoelace (8) close to a fixed point on the upper of each eyelet element (9).

21. The upper according to claim 9 or any of the claims thereto and claim 20, wherein, The at least two eyelet elements (9) are fixed near or to the connection area (3) on the upper.

22. The upper according to claim 18 and claim 20 or 21, wherein, The eyelet element (9) is fixed to the outer layer (7), preferably along the edge of the outer layer (7), which is fixed to the second membrane region (2).

23. The upper according to any one of claims 20 to 22, wherein, The at least two eyelet elements (9) include the last eyelet element (9') located at the rear of the upper, i.e., in use, in the middle of the ankle area of ​​the upper.

24. The upper according to any one of claims 20 to 23, further comprising an upper eyelet support element (10) positioned adjacent to at least two eyelet elements (9) and holding the loop of the lace (8) at a distance from the fixing point of the at least two eyelet elements (9).

25. The upper according to any one of the preceding claims, further comprising at least one third film region (13), the at least one third film region having a third set of characteristics, the third set of characteristics being different from the first set of characteristics and the second set of characteristics.

26. A shoe comprising an upper according to any one of the preceding claims.

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