Patent Application
20250089847
This application claims priority to German Patent Application No. 10 2023 209 160.7, filed Sep. 20, 2023, which is incorporated by reference herein in its entirety.
The present disclosure relates to an upper for a shoe. The upper can comprise an outer layer and an inner layer, the inner layer can comprise a knitted portion comprising one or more knitted functional elements.
The present disclosure also relates to a respective shoe, such as a sports shoe, the shoe comprising such an upper and a sole, the upper being attached to the sole.
Shoes and shoe uppers are generally known and have various purposes and use cases. For instance, they can be designed so as to provide particular benefits for sport applications, for daily work, for leisure time or the like. Particularly in sport applications, uppers for shoes have the potential to provide beneficial performance characteristics such that the overall performance of the wearer during an athletic activity can be increased.
Generally, an upper for a shoe provides a covering for a foot of a wearer, wherein the upper comfortably receives and securely positions the foot of the wearer with respect to the shoe sole. In addition, the upper can have a configuration that protects the foot, provides for stability, yet allows for some flexibility. Further, the upper can have a configuration that provides ventilation, thereby cooling the foot and removing perspiration. It can be recognized that the manufacturing of the uppers for shoes is becoming increasingly difficult since the requirements for shoe uppers in terms of functional properties are becoming more and more demanding.
One particular concern that is inherent to uppers for shoes is the provision of elements that can enhance functional properties such as stretching and/or the provision of stability.
Conventional footwear and footwear uppers have some deficiencies when it comes to providing stability, stretching, and generally improving certain functionalities of the upper for a shoe without compromising other functionalities. This is particularly detrimental in sport applications.
In addition, the manufacturing methods of conventional uppers are typically very complicated and labor intensive, as they necessitate for instance a plurality of different components and/or manufacturing steps. Further, manufacturing of different sizes of the shoe uppers is often accompanied with increasing manufacturing costs.
Hence, there is a need for improved footwear uppers.
Against this background, it is an objective of the present disclosure to provide an improved upper for a shoe that overcomes the deficiencies of the prior art at least partially. In particular, functional properties of the upper such as stretching, the provision of stability, and/or comfort can be improved without comprising other properties. It is a general objective to reduce the costs in providing such an upper for a shoe.
A first embodiment (I) of the present disclosure is directed to an upper (2) for a shoe, the upper (2) comprising: an inner layer (10), arranged in proximity of a foot of a wearer, when the shoe is worn; an outer layer (30), arranged outside with respect to the inner layer (10), when the shoe is worn; wherein the inner layer (10) comprises a knitted portion (20), comprising one or more knitted functional elements (25), wherein the outer layer (30) at least partially covers the one or more knitted functional elements (25). In a second embodiment (II), in the upper according to the first embodiment (I), the one or more functional elements (25) are one or more elongate functional elements (25).
In a third embodiment (III), in the upper according to either the first embodiment (I) or the second embodiment (II), the one or more functional elements (25) define one or more protrusions.
In a fourth embodiment (IV), in the upper according to the third embodiment (III), one or more protrusions extend from the inner layer (10) by at least 0.2 mm, preferably at least 0.4 mm, preferably at least 0.6 mm, preferably at least 0.8 mm, preferably at least 1 mm, preferably at least 1.2 mm, preferably at least 1.4 mm, preferably at least 1.6 mm, preferably at least 1.8 mm, preferably at least 2 mm, and/or by at most 8 mm, preferably at most 6 mm, preferably at most 5 mm, preferably at most 4 mm, preferably at most 3 mm, preferably at most 2.8 mm, preferably at most 2.5 mm.
In a fifth embodiment (V), in the upper according to either the third embodiment (III) or the fourth embodiment (IV), the one or more protrusions comprise the shape of at least one of a rib, a ridge, a lamella, or a fin.
In a sixth embodiment (VI), in the upper according to any one of embodiments (I)-(V), the one or more functional elements (25) are arranged on a side of the inner layer (10) facing away from a foot of a wearer, when the shoe is worn, such that the one or more functional elements (25) are substantially sandwiched between the inner layer (10) and the outer layer (30).
In a seventh embodiment (VII), in the upper according to any one of embodiments (I)-(VI), the one or more functional elements (25) are arranged on a side of the inner layer (10) facing a foot of a wearer, when the shoe is worn.
In an eighth embodiment (VIII), in the upper according to any one of embodiments (I)-(VII), the one or more functional elements (25) define the shape of a fan on at least one of a lateral side region (6) and a medial side region (5) of the upper (2).
In a ninth embodiment (IX), in the upper according to any one of embodiments (I)-(VIII), each of the one or more functional elements (25) is arranged at an angle (a) with respect to a neighboring functional element (25).
In a tenth embodiment (X), in the upper according to any one of embodiments (I)-(IX), the knitted portion (20) is located at a midfoot region of the upper (2) spanning from an instep region (7) to a sole region (9) of the upper (2).
In an eleventh embodiment (XI), in the upper according to any one of embodiments (I)-(X), each of the one or more functional elements (25) has an elongate axis, directed substantially from an instep region (7) towards a medial side region (5) and/or lateral side region (6) of the upper (2).
In a twelfth embodiment (XII), in the upper according to any one of embodiments (I)-(XI), the one or more functional elements (25) are spaced apart from one another by at least 1 mm, preferably at least 2 mm, preferably at least 3 mm, preferably at least 5 mm, preferably at least 10 mm, and/or by at most 50 mm, preferably at most 40 mm, preferably at most 30 mm, preferably at most 25 mm, preferably at most 20 mm, preferably at most 18 mm, preferably at most 15 mm.
In a thirteenth embodiment (XIII), in the upper according to any one of embodiments (I)-(XII), the inner layer (10) comprises a further portion (40) that comprises a further knitted portion (40), the further portion (40) not comprising a functional element (25), wherein the knitted portion (20) and the further portion (40) preferably encompass the whole inner layer (10).
In a fourteenth embodiment (XIV), in the upper according to any one of embodiments (I)-(XIII), the one or more functional elements (25) are configured to allow the upper (2) to be stretched in a first direction (X).
In a fifteenth embodiment (XV), in the upper according to embodiment (XIV), the one or more functional elements (25) are configured to allow the upper (2) to be stretched in the first direction (X) up to a threshold, beyond which the one or more functional elements (25) are configured to counteract further stretching of the stretched upper (2) in the first direction (X).
In a sixteenth embodiment (XVI), in the upper according to any one of embodiments (XIV)-(XV), the one or more functional elements (25) are configured to allow the upper (2) to be stretched in a second direction (Y) different than the first direction (X) by an amount less than stretching in the first direction (X) up to the threshold, wherein the one or more functional elements (25) are configured to counteract stretching of the upper (2) in the second direction (Y).
In a seventeenth embodiment (XVII), in the upper according to any one of embodiments (XIV)-(XVI), the first direction (X) is substantially parallel to the direction (C) of a course of the knitted portion (20), wherein the second direction (Y) is substantially parallel to the direction (W) of a wale of the knitted portion (20).
In an eighteenth embodiment (XVIII), in the upper according to any one of embodiments (I)-(XVII), the one or more functional elements (25) are configured to bulge out the outer layer (30) at least partially.
In a nineteenth embodiment (XIX), in the upper according to any one of embodiments (I)-(XVIII), the one or more functional elements (25) extend over the overall length of a course of the knitted portion (20), wherein the course is arranged so as to pass through an instep region (7) and a medial side region (5) and/or lateral side region (6) in proximity of a sole region (9) of the upper (2).
In a twentieth embodiment (XX), in the upper according to any one of embodiments (I)-(XIX), the one or more functional elements (25) comprise one or more sections, each section extending over a length of a course of the knitted portion (20) of at least 10%, preferably at least 20%, preferably at least 30%, preferably at least 50%, and/or of at most 80%, preferably at most 70%, preferably at most 60% of the overall length of the course of the knitted portion (20), wherein the course of the knitted portion (20) is preferably so as to pass through an instep region (7) and a medial side region (5) and/or lateral side region (6) in proximity of a sole region (9) of the upper (2).
In a twenty-first embodiment (XXI), in the upper according to any one of embodiments (I)-(XX), the one or more functional elements (25) are knitted integrally with the knitted portion (20).
In a twenty-second embodiment (XXII), in the upper according to any one of embodiments (I)-(XXI), the one or more functional elements (25) are formed by stitches (22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h) that are different than the stitches (21a, 21b, 21c, 21d) of the remaining part of the knitted portion (20), wherein the one or more functional elements (25) are formed by tuck stitches (22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h).
In a twenty-third embodiment (XXIII), in the upper according to embodiment (XXII), the one or more functional elements (25) are formed by tuck stitches (22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h) comprising at least 1, preferably at least 2, preferably at least 3, preferably at least 4, preferably at least 5, preferably at least 6, preferably at least 7, preferably at least 8 courses of stitches (21a-d, 22a-h), and/or at most 25, preferably at most 20, preferably at most 18, preferably at most 16, preferably at most 15 courses of stitches (21a-d, 22a-h).
In a twenty-fourth embodiment (XXIV), in the upper according to any one of embodiments (I)-(XXIII), the one or more functional elements (25) comprise one or more of an elastic yarn, a fusible yarn, in particular a low-melt temperature fusible yarn, a polyester yarn, a puffy yarn, a silicone yarn, wherein the one or more functional elements (25) comprise of one or more of an elastic yarn, a fusible yarn, in particular a low-melt temperature fusible yarn, a polyester yarn, a puffy yarn, or a silicone yarn.
In a twenty-fifth embodiment (XXV), in the upper according to any one of embodiments (I)-(XXIV), the outer layer covers substantially all of the one or more functional elements (25) of the knitted portion (20), wherein the outer layer (30) covers the inner layer (10).
In a twenty-sixth embodiment (XVI), in the upper according to any one of embodiments (I)-(XXV), the outer layer (30) comprises one or more of a polyester yarn, a blended yarn, a fusible yarn, a low-melt temperature fusible yarn, or a monofilament yarn.
In a twenty-seventh embodiment (XVII), in the upper according to any one of embodiments (I)-(XXVI), the outer layer (30) does not comprise a functional element (25).
In a twenty-eighth embodiment (XVIII), in the upper according to any one of embodiments (I)-(XXVII), the inner layer (10) and the outer layer (30) are connected to one another in a seamless manner at a foot-receiving opening of the upper (2).
In a twenty-ninth embodiment (XXIX), in the upper according to any one of embodiments (I)-(XXVIII), the inner layer (10) and the outer layer (30) form a two-layered assembly.
In a thirtieth embodiment (XXX), in the upper according to any one of embodiments (I)-(XXIX), the upper (2) is made on a flat knitting machine or on a circular knitting machine.
In a thirty-first embodiment (XXXI), in the upper according to any one of embodiments (I)-(XXX), the one or more functional elements (25) each define a substantially closed shape.
A thirty-second embodiment (XXXII) of the present disclosure is directed to a sports shoe comprising an upper according to any one of embodiments (I)-(XXXI); and a sole attached to the upper.
The accompanying figures, which are incorporated herein, form part of the specification and illustrate embodiments of the present disclosure. Together with the description, the figures further serve to explain the principles of and to enable a person skilled in the relevant art(s) to make and use the disclosed embodiments. These figures are intended to be illustrative, not limiting. Although the disclosure is generally described in the context of these embodiments, it should be understood that it is not intended to limit the scope of the disclosure to these particular embodiments. In the drawings, like reference numbers indicate identical or functionally similar elements.
The indefinite articles “a,” “an,” and “the” include plural referents unless clearly contradicted or the context clearly dictates otherwise.
The term “comprising” is an open-ended transitional phrase. A list of elements following the transitional phrase “comprising” is a non-exclusive list, such that elements in addition to those specifically recited in the list can also be present. The phrase “consisting essentially of” limits the composition of a component to the specified materials and those that do not materially affect the basic and novel characteristic(s) of the component. The phrase “consisting of” limits the composition of a component to the specified materials and excludes any material not specified.
Where a range of numerical values comprising upper and lower values is recited herein, unless otherwise stated in specific circumstances, the range is intended to include the endpoints thereof, and all integers and fractions within the range. It is not intended that the disclosure or claims be limited to the specific values recited when defining a range. Further, when an amount, concentration, or other value or parameter is given as a range, one or more ranges, or as list of upper values and lower values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or value and any lower range limit or value, regardless of whether such pairs are separately disclosed.
The present disclosure provides an improved upper for a shoe. In some embodiments, the above-mentioned objectives can be solved by an upper for a shoe, the upper comprising: an inner layer, arranged in proximity of a foot of a wearer, when the shoe is worn; an outer layer, arranged outside with respect to the inner layer, when the shoe is worn; wherein the inner layer can comprise a knitted portion, comprising one or more knitted functional elements, wherein the outer layer at least partially covers the one or more knitted functional elements.
The one or more knitted functional elements have the advantage of imparting functional properties to the upper in a flexible manner without compromising other properties (for example, comfort or the like). Moreover, there may not need to be any openings and/or cavities in the upper for accommodating any additional and/or separate functional elements. This is attributable to the knitted functional elements that can be comprised by the knitted portion.
In addition, the knitted functional elements do not lead to any substantial impairments to the wearer when the shoe is worn. Such impairments can occur, for instance, by way of thick and/or rigid elements or the like. Further, conventional functional elements could lead to annoying rubbing surfaces on the foot of the wearer. In embodiments according to the present disclosure, this can be circumvented by the arrangement of the inner layer, the knitted portion, the one or more knitted functional elements, and the outer layer.
It is particularly advantageous that the one or more knitted functional elements can facilitate stretching of the upper as part of a functional property. For instance, compensation for changes in a length of the foot during walking can thereby be provided.
The inner layer can comprise a knitted portion, comprising one or more knitted functional elements. This has the further advantage that the one or more knitted functional elements can be closer to the foot of the wearer when the shoe is worn. To be closer to the foot can be best understood in comparison to the outer layer, which is further away from the foot compared to the inner layer. Attributable to the one or more knitted functional elements being closer to the foot, the one or more knitted functional elements can provide for a closer and/or more direct interaction with the foot of the wearer. For instance, the one or more knitted functional elements can provide for a specific anatomical fit. If the one or more knitted functional elements were on the outer layer of the upper, as is the case in some conventional uppers, the interaction would be less direct and, hence, could not be controlled in an enhanced manner. Overall, the knitted portion of the inner layer of the upper can serve as providing beneficial functional properties in an improved manner.
The outer layer, arranged outside with respect to the inner layer, can provide for a certain margin of movement that can be beneficial in athletic activities.
The inner layer, as used herein, can be understood as the layer that is nearer to the foot of the wearer as compared to the outer layer. In other words, as seen from outside the upper when the shoe is worn, the layer structure is such that the outer layer comes first, followed by the inner layer. It is possible that the upper can comprise further layers. For instance, the upper can comprise one or more other layers that can be even closer to the foot of the wearer compared to the inner layer. Further, the upper can comprise one or more other layers that can be arranged between the outer layer and the inner layer. Moreover, the upper can comprise one or more other layers that can be further outside compared to the outer layer. Further, it is understood that the outer layer can comprise one or more knitted functional elements and/or one or more not-knitted functional elements, such as functional elements that are not necessarily knitted. Further, the inner layer can comprise one or more not-knitted functional elements.
The knitted portion that can be comprised by the inner layer can comprise any spatial extension, such as length, width, height, surface area, and/or the like. In some embodiments, the knitted portion can be an integral part of the inner layer. In some embodiments, the knitted portion can be as large as the inner layer. In other words, in some embodiments, the knitted portion can occupy the whole inner layer. Alternatively, in some embodiments, the knitted portion can occupy a rather small portion of the inner layer. It is noted that the size of the knitted portion may not be particularly relevant for the advantages of the one or more knitted functional elements described herein to be applicable. Further, the size of the knitted portion can depend on the particular use case of the shoe. For instance, different sizes can be beneficial for different kinds of athletic activities. Further, the knitted portion that can be comprised by the inner layer can be arranged at any location of the inner layer, such as a midfoot region, an instep region, a medial side region, a lateral side region, a heel region, and/or a toe region of the inner layer.
The one or more knitted functional elements can refer to specific features, components, or parts that can be incorporated to the inner layer. The functional elements can enhance functional properties of the upper. Functional properties as used herein can refer to one or more of the following non-exhaustive list: stretching, stability, securing, dampening, cushioning, any kind of performance characteristics, comfort, breathability, reinforcing, moisture-wicking, adaptability to climate, elasticity, durability, and/or suitability. The functional properties can be catered to serve for specific athletic activities. As implied by the term elements, the one or more knitted functional elements can be discernable as such elements and can be distinguishable from the remainder of the knitted portion of the inner layer. This can apply in any case, such as when the one or more knitted functional elements can be integrally formed with the knitted portion. The one or more knitted functional elements can be understood in such a manner that they provide for greater control of functional properties compared to a knitted fabric, knitted portion, knitted layer, and/or the like as such.
The outer layer can at least partially cover the one or more knitted functional elements. This can be understood such that the one or more knitted functional elements can at least partially not be directly visible from outside the upper when the shoe is worn. In other words, the outer layer can be arranged at least partially on top of the one or more knitted functional elements as seen from outside the upper when the shoe is worn. It can still be possible that the one or more knitted functional elements could be sensed, for instance by way of touching or the like. Further, they can be guessed and, hence, recognized by the skilled person from outside, as the one or more functional elements can provide for the outer layer to bulge out at least partially.
The “wearer” can be any kind of human capable of wearing a shoe. The term “wearer” can be used synonymously with the terms “user,” “athlete,” “human being,” or the like. It is understood that when the disclosure refers to a wearer of the shoe it means that the wearer wears the shoe as well as the upper for said shoe.
The term “knitted” can refer to any kind of suitable knitting technique. In the context of the present disclosure, weft-knitting or warp-knitting can be used. It can be possible to employ single-thread warp-knitted techniques. As described elsewhere herein in greater detail, the upper can be knitted on a circular knitting machine, for example, on a small circular knitting machine. However, it can also be possible to knit the upper on a flat knitting machine or a large circular knitting machine.
In some embodiments, the inner layer can be a knitted inner layer. Furthermore, in some embodiments, the outer layer can be a knitted outer layer. Moreover, in some embodiments, the inner layer and the outer layer can be knitted in a unitary knit construction. In some embodiments, the upper can be a knitted upper. In some embodiments, the upper can be knitted in a unitary knit construction.
The upper for a shoe described herein can be useful in conjunction with and/or when applied to a sports shoe, such as a running shoe or the like. However, it should be noted that the upper can be used with any kind of article of footwear including, but not limited to, football shoes, hiking boots, sneakers, basketball shoes, rugby shoes, baseball shoes, golf shoes, tennis shoes, cross-training shoes, etc. Moreover, the upper can be used in conjunction with shoes for any kind of athletic activity. The term athletic activity is to be understood such that it includes one or more and/or any combination of at least the following non-exhaustive list: aerobics, athletic exercises, running, hiking, climbing, group fitness classes, walking, cycling, yoga, soccer, tennis, football, basketball, doing a workout, volleyball, gymnastics, weightlifting, cross-training, baseball, softball, rugby, field hockey, wrestling, squash, track and field (such as sprinting, long jump, high jump), and cross-country skiing.
The advantages of the knitted functional elements described herein can be pronounced when applied to an upper for a shoe, such as a shoe used during an athletic activity.
In some embodiments according to the present disclosure, the one or more functional elements can comprise one or more elongate functional elements.
This has the advantage of providing the upper with a more customized fit. The elongate functional elements can be adjusted more appropriately to provide an improved fit at least partially around the foot of the wearer. This can aid in ensuring a better support, stretching, stability, and comfort. In addition, the foot can be secured more appropriately in place. Further, functional properties, such as stability and/or stretching can be better controlled due to an elongate shape of the elongate functional elements.
The elongate shape can also provide for better air circulation of the upper. For instance, a gap can be provided in proximity to the elongate functional elements, which can act as an air channel.
The term “elongate” means that there can be a dimension along one axis of the one or more functional elements which can be larger than one or more of the dimensions along the remaining axes, wherein the remaining axes can be substantially perpendicular to the one axis. It is understood that when dimensions are described herein, manufacturing tolerances can be taken into consideration. Although not always explicitly expressed (for example, by using the term “substantially”), it is understood that the elements, parts, units, shapes, and/or the like described herein can comprise such manufacturing tolerances. Thus, the dimensions described herein can vary slightly.
In embodiments of the upper according to the present disclosure, the one or more functional elements can define one or more protrusions.
This allows a more in-depth control of stretching and/or stability of the upper. Further, the protrusions can provide for some spacing of the inner layer and the outer layer.
The protrusions refer to something that can extend from (likewise be termed jut out) a surrounding portion, such as from the knitted portion of the inner layer.
In some embodiments of the upper according to the present disclosure, the one or more protrusions extend from the inner layer by at least 0.2 mm, at least 0.4 mm, at least 0.6 mm, at least 0.8 mm, at least 1 mm at least 1.2 mm, at least 1.4 mm, at least 1.6 mm, at least 1.8 mm, or at least 2 mm, and/or by at most 8 mm, at most 6 mm, at most 5 mm, at most 4 mm, at most 3 mm, at most 2.8 mm, or at most 2.5 mm.
The protrusion should not extend from the inner layer by an excessively large amount, as this can adversely affect a natural feeling of the upper on a wearer's foot. In addition, this could increase the weight of the shoe. The protrusions should additionally or alternatively not extend from the inner layer by a too short amount, as this can compromise the desired benefits in providing functional properties to the upper. Embodiments described herein provide an optimal compromise from these opposing requirements with the one or more protrusions extending by the specified amount disclosed herein.
In some embodiments of the upper according to the present disclosure, the one or more protrusions can comprise the shape of at least one of a rib, a ridge, a lamella, or a fin.
This further adds on the foregoing advantages in that an improved anatomical stabilizing fit can be provided by the one or more protrusions. The shapes can be suitable to provide an improved fit to the foot of the wearer while allowing stretching. Hence, they allow for an adaptive fit.
A rib can be understood as a raised, a curved, and/or a sloped element. This can aid, for instance, in that a slight pressure can be imparted to the wearer such that it indicates a certain degree of stability to the wearer. In addition, this could provide a slight awareness to the wearer. It is noted that the rib is designed such that it does not provide for excessively uncomfortable pressure to the wearer.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be arranged on a side of the inner layer facing away from a foot of a wearer, when the shoe is worn, such that the one or more functional elements can be substantially sandwiched between the inner layer and the outer layer.
In this manner, the one or more functional elements can create a gap between the inner layer and the outer layer. This can facilitate air circulation leading to enhanced breathability. This can reduce formation of moisture in the upper, which can be caused for instance by rain, puddles and/or perspiration. Reduction of formation of moisture is highly appreciated by wearers. For instance, a breeding ground for bacteria and/or fungi can thereby be reduced. Moreover, less moisture also leads to less friction between the foot and the upper, which reduces the formation of blisters and also reduces any irritation. Moreover, odor can be improved. In turn, this can increase user acceptance and can provide a more durable upper, as less washing cycles can be required.
The one or more functional elements can be discretely arranged between the inner layer and the outer layer. This provides a better distribution of the one or more functional elements and can prevent the formation of annoying surfaces, which can otherwise be distracting to the wearer.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be arranged on a side of the inner layer facing a foot of a wearer, when the shoe is worn.
This can have the advantage that an even closer interaction of the one or more functional elements with the foot of the wearer can be established. Thus, imparting of the functional properties can be enhanced. In addition, a gap can then be formed on the side of the inner layer facing the foot of the wearer. In turn, the same advantages as described in the foregoing embodiment in terms of breathability, moisture, and the like are applicable to a greater extent.
The foregoing embodiments can be understood in such a manner that one or more of the functional elements can be arranged on a side of the inner layer facing away from a foot of a wearer, when the shoe is worn, such that one or more of the one or more functional elements can be substantially sandwiched between the inner layer and the outer layer, while other ones of the functional elements can be arranged on a side of the inner layer facing a foot of a wearer, when the shoe is worn.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can additionally or alternatively be arranged on the outer layer of the upper for the shoe. For example, the one or more functional elements can be arranged on a side of the outer layer facing away from a foot of a wearer, when the shoe is worn. Further, the one or more functional elements can be additionally or alternatively arranged on a side of the outer layer facing a foot of a wearer, when the shoe is worn, such that the one or more functional elements can be substantially sandwiched between the inner layer and the outer layer.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can define the shape of a fan on at least one of a lateral side region and a medial side region of the upper.
This can allow for a better control of stretching of the upper and/or better control of the provision of stability. For example, the shape of the fan can be adapted to follow a certain shape of the foot of the wearer. Thereby, the shape of the fan can imitate a natural pattern of the foot of the wearer.
When reference is made herein to the one or more functional elements defining the shape of a fan, it is understood that not necessarily one single functional element can define such a shape. Rather, the majority and/or substantially all of the one or more functional elements taken together can define such a shape. Thereby, any space between two neighboring functional elements can be comprised by the shape of a fan defined by the one or more functional elements.
In some embodiments, the one or more functional elements can define, for instance, the shape of two separate fans. For instance, a first group of one or more functional elements can define the shape of a first fan. Further, a second group of one or more functional elements can define the shape of a second fan. The shape of the first fan and the shape of the second fan can be substantially the same, similar, or different. The shape of the first fan can be arranged on a lateral side region of the upper. The shape of the second fan can be arranged on a medial side region of the upper. This enhances the provision of functional properties at dedicated locations of the upper, such as at locations at which stability and/or stretching is desired according to specific use cases. Thereby these functional properties can be imparted at dedicated locations of the foot of the wearer.
The shape of a fan is understood such that it can comprise a series of curved and/or straight functional elements, wherein each of these can be regarded as comprising a similar shape as a blade (for example, a fan blade). The series of functional elements can, in one example, be arranged in a substantially circular segment around a central hub. The central hub can be arranged in proximity to an instep region. The circular segment can comprise any angular segment, for instance an angular segment with an angle β from about 0° to 180°. In some embodiments, the substantially circular segment of the shape of the fan can comprise an angular segment with an angle β ranging from 10° to 160°, from 20° to 140°, from 30° to 130°, from 40° to 120°, from 50° to 110°, from 60° to 100°, or from 70° to 95°.
In some embodiments of the upper according to the present disclosure, each of the one or more functional elements can be arranged at an angle with respect to a neighboring functional element.
Any angle with respect to a neighboring functional element can be possible. The angle can depend on the use case of the shoe. An angle of 0° means that the functional elements can be substantially parallel to one another. The angle serves the purpose to impart the functional properties at dedicated locations of the foot of the wearer and can facilitate controlling of these functional properties depending on the use case of the shoe in a more advanced manner.
In some embodiments of the upper according to the present disclosure, the knitted portion can be located at a midfoot region of the upper, such as a region spanning from an instep region to a sole region of the upper.
The midfoot region and the region spanning from an instep region to a sole region of the upper can be relevant in athletic activities. Hence, this embodiment has the advantage of providing stretching and/or stability in these relevant regions.
These embodiments can also be understood such that the knitted portion can substantially occupy a midfoot region of the upper, such as the region from an instep region to a sole region of the upper. The sole region of the upper as used herein can typically be arranged close to the bite line of the upper. It is understood that the one or more functional elements may not be provided at the bottom of the inner layer, although such an arrangement is encompassed by the present disclosure.
In some embodiments of the upper according to the present disclosure, each of the one or more functional elements can comprise an elongate axis, directed substantially from an instep region towards a medial side region and/or a lateral side region of the upper. This facilitates that the functional elements can be arranged in an appropriate orientation to further support the wearer and/or to provide the functional properties to the upper.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be spaced apart from one another by at least 1 mm, at least 2 mm, at least 3 mm, at least 5 mm, or at least 10 mm, and/or by at most 50 mm, at most 40 mm, at most 30 mm, at most 25 mm, at most 20 mm, at most 18 mm, or at most 15 mm.
A greater spacing of the one or more functional elements can facilitate that a more natural feeling can be provided. A smaller spacing of the one or more functional elements can offer the possibility to provide for more dedicated stretching and/or stability. The spacing provided herein can provide for an optimal compromise of these opposing requirements.
In some embodiments, the spacing of the one or more functional elements can vary along a length of the one or more functional elements. For instance, the spacing can be smaller in an instep region of the upper. Additionally or alternatively, the spacing can be larger in proximity of a bite line of the upper.
In some embodiments of the upper according to the present disclosure, the inner layer can comprise a further portion, such as a further knitted portion, wherein the further portion does not comprise a functional element, wherein the knitted portion and the further portion can encompass the whole inner layer.
In some embodiments, the knitted portion and the further portion can be integrally formed, such as integrally knitted. For instance, no seam would be necessary to connect the knitted portion and the further portion of the inner layer.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be configured to allow the upper to be stretched in a first direction. Such a stretching can have the advantage that the inner layer can adapt to any change of size imparted by way of the movements performed by the wearer of the shoe. It can be desirable that such a stretching is only provided in one direction, as this allows for control of the shape of the upper in substantially any other direction. The first direction could be any direction, depending on the use case of the shoe.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be configured to allow the upper to be stretched in the first direction up to a threshold, beyond which the one or more functional elements can be configured to counteract further stretching of the stretched upper in the first direction.
This embodiment can be useful in shoes for athletic activities. For instance, it can provide for some safety, as the upper can still secure the foot of the wearer even under severe conditions, such as when strong forces act on the upper. The counteracting can, in some embodiments, be understood such that the one or more functional elements can substantially hinder any stretching of the stretched upper in the first direction. In some embodiments, the one or more functional elements can substantially lock the stretched upper in the first direction.
As described elsewhere herein, the first direction along which the upper can be allowed to be stretched up to a threshold, beyond which the one or more functional elements can be configured to counteract further stretching of the stretched upper, can be the direction of the course direction. Nevertheless, in some embodiments, the one or more functional elements can stop the upper from stretching in the direction of the course direction. Additionally or alternatively, the one or more functional elements can be configured to allow stretching the upper in the wale direction. As described elsewhere, allowing for stretching and counteracting by way of the one or more functional elements can be achieved by employing a combination of one or more functional elements and one or more yarns, such as fusible yarns, in the remainder of the knitted portion.
In some embodiments, the inner layer and/or the outer can be subject to small margins of stretching and/or movements. Hence, it cannot be ruled out that, although the one or more functional elements can counteract further stretching of the stretched upper in the first direction, a minor stretching of the stretched upper in the first direction can still be recognizable. This can depend on the use case of the shoe and/or on the forces acting on the upper, such as in the first direction.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be configured to allow the upper to be stretched in a second direction different than the first direction by an amount less than stretching in the first direction up to the threshold, wherein the one or more functional elements can be configured to counteract stretching of the upper in the second direction.
This can further enhance the control of the functional properties. For instance, the shape of the upper in the second direction can be substantially maintained, which can provide for a more secure fit to the foot.
Overall, the embodiments described herein have the advantage that an anatomical stabilizing fit can be provided with the additional possibility to compensate for changes in size, such as the length of the foot when walking.
In some embodiments of the upper according to the present disclosure, the first direction can be substantially parallel to the direction of a course of the knitted portion, and the second direction can be substantially parallel to the direction of a wale of the knitted portion.
In some embodiments, stretching in the direction of the course (first direction) can be greater as compared to stretching in the direction of the wale (second direction).
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be configured to bulge out the outer layer at least partially. This can have the advantage that the one or more functional elements can be sensed from outside the shoe. Bulging out the outer layer can be understood such that the one or more functional elements can provide for an embossed structure.
In some embodiments, one or more foils can be applied to the outer layer. This can provide for reinforcement, waterproofing, and/or the like. In some embodiments, foils do not substantially affect the embossed structure attributable to the one or more functional elements bulging out the outer layer. In other words, the one or more functional elements can substantially maintain their shape and, thereby, their functional properties.
In some embodiments, the outer layer can comprise fusible yarns. After heat treatment, such fusible yarns can fuse to form a film-like surface on the outer layer. The one or more functional elements of the knitted portion of the inner layer can still be sensed by way of the embossing effect provided on the film-like surface of the outer layer.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can extend over the overall length of a course of the knitted portion, wherein the course can be arranged so as to pass through an instep region and a medial side region and/or lateral side region in proximity of a sole region of the upper.
This can facilitate the provision of rather long and uninterrupted one or more functional elements. Hence, functional properties can be imparted over a greater length. Further, control of these properties can be improved.
The location of the one or more functional elements depends on the use case of the shoe. In some embodiments, the one or more functional elements can be located in the midfoot region so as to prevent twisting and provide stability to the foot of the wearer. This can be desired for running. In other athletic activities, the one or more functional elements can be located majorly on the medial side region (for instance, in a medial forefoot region and/or a medial heel region) so as to provide abrasion resistance and/or durability. This can be of importance, for instance, when the shoe can be subject to sliding movements. This can be desired for tennis and/or athletic activities in which similar impacts can be expected.
In some embodiments, the one or more functional elements can extend over the overall length of a course of the knitted portion, wherein the course can be arranged so as to pass through an instep region and a medial side region and/or lateral side region in proximity of the bite line of the upper.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can comprise one or more sections, each section extending over a length of a course of the knitted portion of at least 10%, at least 20%, at least 30%, or at least 50%, and/or of at most 80%, at most 70%, or at most 60% of the overall length of the course of the knitted portion, wherein the course of the knitted portion can be arranged so as to pass through an instep region and a medial side region and/or lateral side region in proximity of a sole region of the upper.
With this embodiment, the one or more sections can provide more flexibility in imparting desired functional properties at dedicated locations of the foot of the wearer. Hence, control of the functional properties can be increased.
The one or more sections should not be too short and/or not too long. With the lengths disclosed herein, an optimal balance can be struck between the different requirements.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be knitted integrally with the knitted portion.
This can facilitate efficiency of the manufacturing process, as the number of required manufacturing steps can thereby be reduced. In addition, the number of components of the upper can be reduced (for example, compared to cases in which the one or more functional elements can be separate elements). In some embodiments, the one or more functional elements can replace any kind of components used in a conventional upper, such as reinforcement elements, foam, laces, tape and/or the like, as the one or more functional elements can provide for similar functionality. This can make the overall manufacturing process quite cost effective.
Further, user acceptance can be enhanced as there are no further distracting components, elements, and/or parts on the knitted portion of the inner layer. Moreover, the provision of seams on the knitted portion, the inner layer, or even the upper may not be necessary when the one or more functional elements can be knitted integrally with the knitted portion.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be formed by stitches that can be different than the stitches of the remaining part of the knitted portion, wherein the one or more functional elements can be formed by tuck stitches.
Employing different stitches to the one or more functional elements can provide the advantage to impart specific functional properties to the one or more functional elements as compared to the remainder of the knitted portion.
Tuck stitches can provide rather durable one or more functional elements that can substantially retain any shape, for instance a three-dimensional shape. This can also be true even after multiple uses of the upper. This can be achieved through finely interlocked tuck stitches that can maintain the shape of the one or more functional elements.
Employing tuck stitches as disclosed herein can provide a quite simplified way of creating any kind of three-dimensional shapes into the knitted portion of the inner layer. A tuck stitch can have the advantage that it can increase a fabric's volume, which is useful to provide for the functional properties.
As an alternative to tuck stitches, stitches can be left hanging (for example, by employing floats, which can be long strands of yarn that run across the back of the fabric) on individual needles during the knitting process. Thereby, an accumulation of material can be achieved, which can result in a three-dimensional shape, such as an elevation. This can be similar to the provision of tuck stitches.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can be formed by tuck stitches comprising at least 1, at least 2, at least 3, at least 4, at least 5, at least 6, at least 7, or at least 8 courses of stitches, and/or at most 25, at most 20, at most 18, at most 16, or at most 15 courses of stitches.
Increasing the number of courses (for example, rows) of tuck stitches can facilitate an increase in the accumulation of material. Thereby, the height of the one or more functional elements can be increased, for instance. This can allow control of the functional properties to be imparted in an improved manner. The number of courses can depend on the use case of the shoe as understood by the skilled person.
In some embodiments, increasing the number of courses can also increase the weight of the knitted material. A lower number of courses can be desirable, for instance, in certain regions of the upper where less pronounced functional properties can be desired.
In some embodiments, the number of tuck stitches described herein can provide for an optimum compromise between these conflicting requirements.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can comprise one or more of an elastic yarn, a fusible yarn, a low-melt temperature fusible yarn, a polyester yarn, a puffy yarn, or a silicone yarn, wherein the one or more functional elements can comprise one or more of an elastic yarn, a fusible yarn, a low-melt temperature fusible yarn, a polyester yarn, a puffy yarn, a silicone yarn, or a monofilament yarn.
This facilitates that the one or more functional elements can be provided with a specific property according to the use case of the shoe. For example, when elastic yarns are employed, stretchability can be enhanced. Further, when fusible yarns are employed (for example, low-melt temperature fusible yarns/TPU yarns), rigid functional elements can be provided. These rigid functional elements may not substantially stretch due to their rigidity and could be useful to provide a resilient upper. Further, when high resistance yarns are employed, abrasion-resistant functional elements can be provided. Examples of high resistance yarns can be: (high tenacity) polyester yarns, nylon yarns, aramid yarns, polyethylene yarns, acrylic yarns, or viscose rayon yarns. Further, when employing bulky or puffy yarns, more pronounced functional elements, such as functional elements with greater heights, can be provided. This can provide a more pronounced three-dimensional effect.
In some embodiments of the upper according to the present disclosure, the outer layer can cover substantially all of the one or more functional elements of the knitted portion, wherein the outer layer can cover the inner layer.
This has the advantage that the one or more functional elements may not be directly visible from outside. Hence, the look of the upper can be improved. In addition, the one or more functional elements can thereby be protected from environmental impacts. For instance, the outer layer can comprise yarns that offer more durability and/or more wear-resistance as compared to the inner layer in order to protect the inner layer. The inner layer can comprise yarns so as to impart the desired functional properties, without necessarily requiring yarns that offer high durability and/or high wear-resistance.
The outer layer covering the inner layer can have the advantage that the overall manufacturing process can be enhanced.
In some embodiments of the upper according to the present disclosure, the outer layer can comprise one or more of a polyester yarn, a blended yarn, a fusible yarn, or a low-melt temperature fusible yarn. In some embodiments, a moisture-wicking yarn can be used.
A yarn can be a continuous strand of fibers, filaments, or materials that can be twisted or spun together to form a long, cohesive thread-like structure.
It is noted that any yarns described herein can also be employed for the inner layer.
In some embodiments of the upper according to the present disclosure, the outer layer does not comprise a functional element.
This can be advantageous in cases where sufficient stability and/or stretching and/or any kind of functional property can already be provided by way of the inner layer. In this manner, the outer layer can be simplified in its construction. Hence, less manufacturing effort is needed.
In some embodiments of the upper according to the present disclosure, the inner layer and the outer layer can be connected to one another in a seamless manner, for example, at a foot-receiving opening of the upper.
This can have the advantage that the inner layer and the outer layer can be unitarily knit together at the foot-receiving opening. Thereby, no seam can be visible. However, if desired, a seam or a seam-like structure can be provided. It is noted that the foot-receiving opening of the upper can be understood as a collar region of the upper.
In some embodiments of the upper according to the present disclosure, the inner layer and the outer layer can form a two-layered assembly.
This two-layered assembly can also be referred to as a sock-in-sock construction. Thereby, the outer layer can envelop the inner layer.
Manufacturing of the upper after knitting of the inner layer and the outer layer is described in the detailed description.
In some embodiments of the upper according to the present disclosure, the upper can be made on a flat knitting machine or on a circular knitting machine.
In some embodiments, a small circular knitting machine can be used. The machine can comprise one, two, or even more than two needle beds.
Circular knitting machines can have the advantage that a tubular construction can be provided without the need of one or more seams. Circular knitting machines can be faster compared to flat knitting machines, making them more suitable for high-volume production.
Flat knitting machines can have the advantage that they can produce a wide range of fabric types. In addition, flat knitting machines can have the advantage of providing a specific tailored fit.
When reference is made herein to the upper being made on a flat knitting machine or a circular knitting machine, this can mean that the inner layer as well as the outer layer can be made on such a knitting machine.
In some embodiments of the upper according to the present disclosure, the one or more functional elements can each define a substantially closed shape.
A closed shape means that the one or more functional elements may not comprise an opening or the like. Such openings can, for instance, be present in eyelets or the like. In one example, the one or more functional elements do not comprise a through-hole.
In some embodiments, the objectives can be solved by a shoe, such as a sports shoe, the shoe comprising: an upper according to any one of the embodiments described herein; and a sole attached to the knitted upper.
The technical properties shown or described for the upper, and the advantages and the improvements over conventional uppers can likewise be applicable to the shoe, such as the sports shoe. Same applies vice versa.
In the following, only some possible embodiments are described in detail.
However, the present disclosure is not limited to these, and a multitude of other embodiments are applicable without departing from the scope of the disclosure. The presented embodiments can be modified in a number of ways and combined with each other whenever compatible and certain features can be omitted in so far as they appear dispensable. For example, the disclosed embodiments can be modified by combining certain features of one embodiment with one or more features of another embodiment.
It is to be understood that not all features of the described aspects/embodiments have to be present for realizing the technical advantages provided by the present disclosure, which is 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.
Specifically, the skilled person 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 the present disclosure given that the resulting combination falls within the definition of the present disclosure.
While the embodiments below are described primarily with reference to an upper for a shoe, such as a sports shoe, the skilled person will recognize that embodiments according to the disclosure can equally be applied in a plurality of different technical fields and/or use cases.
Throughout the present figures and specification, the same reference numerals refer to the same elements. For the sake of clarity and conciseness, certain aspects of components or steps of certain embodiments are presented without undue detail where such detail would be apparent to those skilled in the art in light of the teachings herein and/or where such detail would obfuscate an understanding of more pertinent aspects of the embodiments.
As understood by the skilled person and/or in order to avoid redundancies, reference is also made to the explanations in the preceding sections, which also apply to the following detailed description. Further, not all features, parts, elements, aspects, components and/or steps are expressly indicated by reference signs for the sake of brevity and clarity. This particularly applies, where the skilled person recognizes that such features, parts, elements, aspects, components and/or steps are present in a plurality. One example of which can be the knitted functional elements.
Unless otherwise stated, the term “substantial” or “substantially” as used in the present context can be understood to mean a great or significant extent or for the most part. Manufacturing tolerances are included by this term.
Unless specified otherwise, when referring to a direction or dimension, the term “about,” “substantial” or “substantially” means a first direction or dimension is +/−10% of a second direction or dimension.
The term “and/or” is only an association relationship describing associated objects and represents that three relationships can exist. For example, A and/or B can represent three conditions: independent existence of A, existence of both A and B, and independent existence of B. In addition, the character “/” in the disclosure usually represents that previous and next associated objects form an “or” relationship.
For brevity, the one or more “knitted functional elements” can sometimes be referred to herein as one or more “functional elements”. In case not-knitted functional elements are meant, this is expressly indicated.
The term “bite line” as used in the present disclosure can refer to a line along the intersection of the upper and a shoe sole.
The term “course” as used in the present disclosure can refer to a predominantly horizontal row of needle loops (in an upright fabric as knitted) produced by adjacent needles during the same knitting cycle. In some instance, the term “course” can be used synonymously with the term “row”.
The term “wale” as used in the present disclosure can refer to a predominantly vertical column of intermeshed needle loops generally produced by the same needle knitting at successive (not necessarily all) knitting cycles. A wale can commence as soon as an empty needle starts to knit.
The term “tuck stitch” as used in the present disclosure can refer to a formation of a stitch when a needle already holding a stitch, receives a further stitch. This further stitch is tucked in behind the held stitch. Fabrics with tuck stitches can comprise a lower elasticity in the wale direction but an increased elasticity in the course direction. This can be the case, as the tuck stitches substantially pull down the held stitches and cause them to spread.
The upper 2 comprises an inner layer 10 (not depicted in
As can be gathered from
The one or more functional elements 25 of
Alternatively or additionally, the one or more functional elements 25 can be arranged on a side of the inner layer 10 facing a foot of a wearer, when the shoe is worn.
The knitted portion 20 (the knitted portion 20 is covered by the outer layer 30 in
Moreover, each of the one or more functional elements 25 has an elongate axis, directed substantially from an instep region 7 towards a medial side region 5 (as best seen in
Further, the one or more functional elements 25 can be spaced apart from one another by at least 1 mm and/or by at most 50 mm.
Further still, the inner layer 10 comprises a further portion 40 (indicated in
Further, the one or more functional elements 25 can be configured to bulge out the outer layer 30 of the upper 2 at least partially. This can be seen in
As also shown in
As understood, the extension, location, and/or arrangement of the one or more functional elements 25 depends on the use case of the shoe as different requirements pertain. Different advantages can be achieved depending on the extension, location, and/or arrangement of the one or more functional elements 25. These different advantages can, for instance, be highlighted by way of the different requirements for running (twisting in the midfoot region should be prevented and stability should be provided) and tennis (for example, abrasion resistance and/or durability on a medial side region should be provided, as the shoe can slide) as described.
The one or more functional elements 25 can comprise one or more sections (as best seen in the knitting sequence in
The one or more functional elements 25 can be knitted integrally with the knitted portion 20. This can significantly reduce manufacturing costs, as substantially no separate parts, such as reinforcement elements, foam, laces, and/or the like would need to be provided.
As further shown in
In some embodiments, the outer layer 30 may not comprise a knitted functional element 25. This can be the case, since sufficient stability, stretching and/or any kind of functional property could already be provided by way of the inner layer 10.
As additionally derivable from the knitting sequences described further below, the one or more functional elements 25 can each define a substantially closed shape.
It is noted, that whenever a part, feature, layer, element and/or the like is described as being “knitted” or “knit” in the present disclosure, this can allow to derive the distinctive characteristic that it is formed of interlocking yarn or thread loops. These thread loops can also be referred to as stitches and can be formed of one or several yarns or threads. Compared to other types of fabric, such as woven fabric, knitted fabric can have the advantage of comprising a certain level of stretchability so that the shoe upper can optimally adjust to the shape of the foot and provide the wearer with the necessary support.
One or more foils 31 can be applied to the outer layer 30 in
As shown in
In some embodiments, the one or more functional elements 25 define the shape of a fan on a medial side region 5 of the upper 2. In some embodiments, the one or more functional elements 25 can define the shape of a fan on the lateral side region 6 of the upper 2 (as indicated for instance in
In some embodiments, each of the one or more functional elements 25 can be arranged at an angle α with respect to a neighboring functional element 25. This is indicated by way of the two dashed lines placed onto the two functional elements 25 on the right-hand side of
Further, as also shown in
In some embodiments, the one or more functional elements 25 can be configured to allow the upper 2 to be stretched in a first direction X (as indicated in
The knitted portion 20 can comprise any number of functional elements 25. For instance, the knitted portion 20 can comprise at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or more functional elements, and/or at most 50, 40, 30, 20, 15, 10 or less functional elements 25. As noted elsewhere herein, the size of the knitted portion 20 may not be particularly relevant for the advantages of the one or more knitted functional elements 25 described herein to be applicable. In some embodiments, the knitted portion 20 can occupy substantially the whole inner layer 10. In some embodiments, the knitted portion 20 can occupy a portion that is at most 95%, at most 90%, at most 80%, at most 70%, at most 60%, at most 50%, or at most 40% of the whole inner layer 10, and/or the knitted portion 20 can occupy a portion that is at least 5%, at least 10%, at least 20%, at least 30%, or at least 40% of the whole inner layer 10.
The picture at the top of
In some embodiments, a majority of the one or more functional elements 25 can be located on the medial side region 5 so as to provide abrasion resistance and/or durability. This could be of importance, for instance, when the shoe is subject to sliding movements. This can be desired for tennis and/or athletic activities in which similar impacts can be expected.
In some embodiments, the one or more knitted functional elements 25 can be arranged in a substantially continuous manner. Further, the one or more knitted functional elements 25 can be arranged substantially equidistantly with respect to one another. In some embodiments, it is also possible to arrange the one or more knitted functional elements 25 in one or more groups, wherein at least one of the one or more groups can comprise one or more knitted functional elements 25 that can be substantially discontinuous. Further, any two of the knitted functional elements 25 can be provided with a space different than a space between two other knitted functional elements 25. Further, a space can be provided between the one or more groups. In some embodiments, no knitted functional elements 25 can be provided in the space (as shown in
In some embodiments, high resistance yarns as described elsewhere herein can be employed for knitting the knitted functional elements 25. This has the advantage that abrasion-resistance functional elements 25 can be provided, which can reduce wear caused by the external environment. Non-exhaustive examples of useful sports applications of such an upper 2 can be tennis, badminton, basketball, handball, fencing or the like. For example, slide and/or drag zones can be provided on the upper 2, which could protect the foot 1 (depicted in
The picture at the top of
In each embodiment, the upper 2 comprises an inner layer, comprising a knitted portion 20, comprising one or more knitted functional elements 25. In each embodiment of
In some embodiments, the first group and the second group, or generally any groups described herein, can in combination provide for additional functional enhancements. For instance, the groups can form a network of one or more knitted functional elements 25 that work in tandem to provide a desired effect and/or functionality. For instance, the groups can be provided with a line of interaction in between the groups, which could aid in achieving additional functionality. For instance, the line of interaction could be provided with more rigidity or with more elasticity. Thus, the groups can in combination contribute to a greater functionality as the sum of each individual group alone.
As shown in the embodiment on the left side of
In some embodiments, elastic yarns as described elsewhere herein can be employed for knitting the knitted functional elements 25. This has the advantage that a tight, form-fitting upper can be provided. This can be useful when combined with a laceless construction. A further advantage is that the foot can be secured during dynamic movements. Non-exhaustive examples of useful sports applications of such an upper 2 can be football, rugby, running, training or the like. An additional advantage is that the upper 2 can offer a compression fit and that it is suitable for sports activities that involve prolonged durations.
The upper 2 can comprise an inner layer, comprising a knitted portion 20, comprising one or more knitted functional elements 25. In some embodiments, the one or more knitted functional elements 25 can be provided at different regions of the upper 2. As derivable from the picture in the middle of
In some embodiments, puffy yarns as described elsewhere herein can be employed for knitting the knitted functional elements 25. This has the advantage that a volume of the functional elements 25 can be increased. This can offer comfortable padding in the collar and u-throat region of the upper 2. This can alleviate lace pressure for instance. Non-exhaustive examples of useful sports applications of such an upper 2 can be any kind of court sports. Instead of using a complete foam padding piece, incorporation of puffy yarns can allow for sweat absorption and faster drying, reducing the shoe's additional weight when being saturated. This can be useful for any sport, such as tennis, when exposed to harsh weather conditions (such as high temperature, humidity or the like). Further, the upper 2 can have the advantage that it can provide for insulation for outdoor activities.
In any one of the embodiments described herein, the upper 2 can be made on a flat knitting machine or a circular knitting machine. A differentiation can be made between flat knitting and circular knitting machines. In flat knitting machines, a thread feeder feeds the thread back and forth along a row of needles. In a circular knitting machine, the needles can be arranged in a circular manner and the thread feeding correspondingly takes place in a circular movement along one or more round rows (also referred to herein as courses) of needles which can be positioned on a cylinder.
Employing a small circular knitting machine has the advantage that most or all of the upper 2 for a shoe can directly be made with the correct size and shape so that no further cutting step is needed. However, as described elsewhere herein, it is also possible to produce the upper 2 on a flat knitting machine or a large circular knitting machine. When employing a large circular knitting machine, the upper 2 can be cut out from a tubular textile after said textile has been produced by said machine.
It is noted that small circular knitting machines can differ from large circular knitting machines by their size, capacity and/or type of products they produce. The skilled person can readily distinguish a small circular knitting machine from a large circular knitting machine.
Small circular knitting machines can typically be compact and comprise a smaller diameter compared to large circular knitting machines. Such small circular knitting machines can be useful for producing tubular fabrics such as socks, gloves, hats, or the like. Large circular knitting machines can be larger in size and can be used to produce wide fabrics. In some examples, large circular knitting machines can comprise a greater number of needles. This can facilitate the production of wider fabrics.
In some embodiments, the inner layer 10 and/or the outer layer 30 can comprise a single layer fabric or a double layer fabric. The double layer fabric can be achieved by using a double bed knitting machine. This machine has two needle beds, allowing for the simultaneous knitting of two layers of fabric. In some embodiments, the layers of the double layer fabric can be interconnected through certain stitch patterns, creating a stable and coherent fabric with no visible seams on either side. Such double layer fabric can be provided by flat knitting machines as well as by circular knitting machines. When observing the double layer fabric from the side, the needles of the two rows of needles can, for example, be opposite each other at a substantially right angle. This can enable the manufacture of more elaborate structures or fabrics. The use of two rows of needles can allow to manufacture a one-layered or a two-layered weft knitted fabric.
In some embodiments, manufacturing of the upper 2 (such as manufacturing of the upper 2 after knitting of the inner layer 10 (indicated in
In some embodiments, the one or more functional elements 25 can be formed by stitches 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h (summarized as 22a-22h) that can be different than normal stitches 21a, 21b (exemplarily only two of these are indicated in
In some embodiments, the one or more functional elements 25 can be formed by tuck stitches 22a-22h comprising at least one, at least two, at least three, at least four, at least five, at least six, at least seven, or at least eight courses of stitches, and/or at most 25, at most 20, at most 18, at most 16, or at most 15 courses of stitches. In
In some embodiments, increasing the number of courses of tuck stitches can cause the height of a functional element 25 to be increased. Further, the stiffness provided by the functional element 25 can be increased as the height increases. In addition, having a greater number of courses of tuck stitches can cause more material to be gathered. This can be helpful for creating the shapes of the one or more functional elements 25 and imparting functional properties thereby.
In some embodiments, the course of normal stitches 21b can reduce the strain and/or tension on the needles of the knitting machine. Thereby, this can prevent the needles from breaking. In addition, this can relax the knit structure. This can be helpful between two sets of 22, 22′ of courses of tuck stitches. However, as shown in
In some embodiments, a functional element 25 can comprise four sets 22, 22′, 22″, 22″″, each comprising four courses of tuck stitches 22a, 22b, 22c, 22d, are indicated. In some embodiments, each of the four sets 22, 22′, 22″, 22″ ″ is separated from a neighboring set by a course of normal stitches 21b, 21c, and 21d. The same advantages as laid out in
This knitting sequence can provide an increased width of the functional element 25, as multiple sets of courses of tuck stitches can be provided. This can create an enlarged area of the surface of the functional element 25. Thereby, the top surface of the functional element 25 can be made wider. In turn, this can increase the width of the functional element 25. This could be made broader than 1 cm, for instance, and as described elsewhere herein.
In some embodiments, the functional element 25 can comprise two sets 22, 22′, each set 22, 22′ comprising four courses of tuck stitches 22a, 22b, 22c, and 22d. In some embodiments, each of the two sets 22, 22′ can be separated from a neighboring set 22, 22′ by a course of normal stitches 21b. The same advantages as laid out in
In some embodiments, the placement of the course of tuck stitches of the first set 22 and of the second set 22′ can be been altered relative to one another so as to achieve a special visual effect. For example, small discrete portions of functional elements 25 can be provided in the course direction C. These discrete portions of the functional elements 25 can be separated by a gap (indicated by letter “g” in
This can contribute to the overall appearance of the functional element 25. Thereby, different visual effects can be achieved by the functional element 25.
In some embodiments, the functional element 25 can comprise two sets 22, 22′, each set 22, 22′ comprising four courses of tuck stitches 22a, 22b, 22c, and 22d. Each of the two sets 22, 22′ is separated from a neighboring set 22, 22′ by a course of normal stitches 21b. The same advantages as laid out in
Each of the two sets 22, 22′ spans the entire width of the fabric. This can represent a long uninterrupted functional element 25. In other words, the functional element 25 can extend over the overall length of a course of the knitted portion 20.
In some embodiments, the functional element 25 can comprise several sections. Each section can comprise two sets 22, 22′, each set 22, 22′ comprising four courses of tuck stitches 22a, 22b, 22c, 22d (for clarity reasons only, the courses of tuck stitches are not provided with reference signs, but they can be apparent to the skilled person when consulting any one of the foregoing figures). In some embodiments, each of the two sets 22, 22′ of each section can be separated from a neighboring set 22, 22′ by a course of normal stitches 21b. The same advantages as laid out in
The several sections can be arranged in a staggered manner. This can allow the functional properties to be imparted according to the desired needs of the use case of the shoe.
Although the description of
In any one of the embodiments described herein, the one or more functional elements 25 can comprise one or more of an elastic yarn, a fusible yarn, a low-melt temperature fusible yarn, a polyester yarn, a puffy yarn, a silicone yarn. Some further exemplary types of yarns that can be used for the inner layer 10, the knitted portion 20, the one or more functional elements 25, the outer layer 30, and/or the further portion 40 of the inner layer 10 can be the following: fusible yarn, low-melt temperature fusible yarn, thermoplastic polyurethane (TPU) yarn, reflective yarn, water resistant/repellent yarn, waterproof yarn, high tenacity yarn, abrasion resistant yarn, durable yarn, shrink yarn, recycled yarn, natural fiber yarn (such as wool or cotton), hybrid yarn, anti-microbial (anti-bacterial) yarn like copper, zinc, silver, elastic yarn, UV resistant yarn, bio-based yarn, textured yarn, cellulose yarn, regenerated yarn, such as cupro and modal yarns that can be high-strength cellulose fiber yarns, and/or a monofilament yarn.
The yarns according to the present disclosure can comprise natural fibers, synthetic fibers, and/or blends. The yarn can be spun from natural fibers such as cotton, wool, silk, linen, hemp, and jute. Each type of natural fiber can bring its own unique characteristics to the yarn, resulting in fabrics with different textures, softness, warmth, and breathability. The yarn can also be made from synthetic fibers like polyester, nylon, acrylic, and rayon. These fibers can be manufactured using chemical processes and can offer specific properties like durability, moisture-wicking abilities, and colorfastness. The yarn can be composed of a blend of different fibers, combining the desirable characteristics of each material. For example, a yarn can be a blend of cotton and polyester to achieve both softness and strength. The yarns according to the present disclosure can comprise various thicknesses and/or weights, which can often be categorized by the number of plies (strands) and the thickness of the individual fibers or filaments. The weight of the yarn can affect the drape, density, and appearance of the resulting fabric.
It is noted that the above embodiments and/or examples can be combined with further aspects as described herein and details of the embodiments and/or examples can also be omitted, as will be understood by the skilled person. The scope of protection is determined by the claims and is not limited by the embodiments and/or examples disclosed in the above figures.
While various embodiments have been described herein, they have been presented by way of example, and not limitation. It should be apparent that adaptations and modifications are intended to be within the meaning and range of equivalents of the disclosed embodiments, based on the teaching and guidance presented herein. It therefore will be apparent to one skilled in the art that various changes in form and detail can be made to the embodiments disclosed herein without departing from the spirit and scope of the present disclosure. The elements of the embodiments presented herein are not necessarily mutually exclusive, but can be interchanged to meet various situations as would be appreciated by one of skill in the art.
The examples are illustrative, but not limiting, of the present disclosure. Other suitable modifications and adaptations of the variety of conditions and parameters normally encountered in the field, and which would be apparent to those skilled in the art, are within the spirit and scope of the disclosure.
It is to be understood that the phraseology or terminology used herein is for the purpose of description and not of limitation. The breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments, but should be defined in accordance with the following claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102023209160.7 | Sep 2023 | DE | national |
