SUPPORT PLATE CONFIGURED TO BE ARRANGED IN A SOLE STRUCTURE OF A SHOE

Abstract

The present disclosure relates to a support plate configured to be arranged in a sole structure of a shoe. The support plate may comprise a first portion associated with a forefoot area of the sole structure and a second portion associated with a heel area of the sole structure. The support plate may be thinner in at least a part of the first portion as compared to the second portion.

Claims

1. A support plate configured to be arranged in a sole structure of a shoe, comprising: a first portion associated with a forefoot area of the sole structure; and a second portion associated with a heel area of the sole structure, wherein the support plate is thinner in at least a part of the first portion as compared to the second portion.

2. The support plate according to claim 1, further comprising a middle portion associated with a mid-foot area of the sole structure, wherein the middle portion connects the first portion and the second portion, wherein the middle portion comprises reinforcement ribs.

3. The support plate according to claim 2, wherein the first portion and the second portion are wider than the middle portion in a medial-lateral direction, and wherein the second portion is wider than the first portion in the medial-lateral direction.

4. The support plate according to claim 1, wherein the second portion comprises at least one wing extending upwards to support a heel of a user.

5. The support plate according to claim 4, wherein the second portion comprises at least two wings being arranged opposite each other on lateral and medial sides of the support plate.

6. The support plate according to claim 1, wherein the first portion comprises a middle portion connecting the first portion and the second portion, wherein the support plate comprises at least two fingers extending from the middle portion or the second portion towards a toe-end of the support plate, wherein at least one finger is arranged on a lateral side of the support plate and at least one finger is arranged on a medial side of the support plate.

7. The support plate according to claim 6, wherein each finger of the at least two fingers comprises a hook, wherein the hook of the at least one finger on the lateral side is directed to the medial side and the hook of the at least one finger on the medial side is directed to the lateral side, wherein the at least one finger on the medial side is configured to support a big toe of a user.

8. The support plate according to claim 6, wherein an additional finger is provided between the at least two fingers, wherein the additional finger is shorter than either of the at least two fingers.

9. The support plate according to claim 6, wherein the at least two fingers taper towards the toe-end of the support plate.

10. The support plate according to claim 1, wherein the first portion has a thickness of greater than or equal to 0.5 mm and less than or equal to 5.0 mm and the second portion has a thickness of greater than or equal to 1.0 mm and less than or equal to 8.0 mm.

11. The support plate according to claim 1, wherein the support plate is configured to distribute a load over an entirety of a bottom of a foot.

12. The support plate according to claim 1, wherein the second portion is stiffer than the first portion.

13. The support plate according to claim 1, wherein the second portion comprises an aperture in the heel area, wherein the aperture is configured to provide additional cushioning for a heel of a user.

14. The support plate according to claim 1, wherein the first portion comprises at least two wings being arranged opposite each other on a lateral side of the support plate and a medial side of the support plate.

15. The support plate according to claim 6, wherein at least one finger of the at least two fingers comprises a through hole, wherein the through hole comprises a shape that follows a contour of the at least one finger.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0023] 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 present 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 present disclosure to these particular embodiments. In the drawings, like reference numbers indicate identical or functionally similar elements.

[0024] Possible embodiments of the present disclosure are disclosed by reference to the accompanying figures.

[0025] FIG. 1 shows a 3D illustration of a support plate for a sole structure of a shoe from two different perspectives, according to some embodiments of the present disclosure.

[0026] FIG. 2 shows the plate of FIG. 1 from two further perspectives, according to some embodiments of the present disclosure.

[0027] FIG. 3 shows a top view and two side views of the support plate of FIG. 1, according to some embodiments of the present disclosure.

[0028] FIG. 4 shows a sole structure comprising the support plate of FIG. 1 in a 3D perspective view, according to some embodiments of the present disclosure.

[0029] FIG. 5 shows a top view and two side views of a support plate, according to some embodiments of the present disclosure.

[0030] FIG. 6 shows a bottom view of a shoe comprising a sole structure with another a support plate, according to some embodiments of the present disclosure.

[0031] FIG. 7a shows a 3D illustration of a support plate for a sole structure of a shoe, according to some embodiments of the present disclosure.

[0032] FIG. 7b shows the support plate of FIG. 7a in a 3D side view perspective.

[0033] FIG. 8 shows a 3D illustration of a support plate for a sole structure of a shoe, according to some embodiments of the present disclosure.

[0034] FIG. 9 shows a 3D illustration of a support plate, according to some embodiments of the present disclosure.

DETAILED DESCRIPTION

[0035] In the following, only some possible embodiments are described in detail. However, the present disclosure is not limited to these embodiments, and a multitude of other embodiments are applicable without departing from the scope of the disclosure. The presented embodiments may be modified in a number of ways and combined with each other whenever compatible, and certain features may be omitted in so far as they appear dispensable. In particular, the disclosed embodiments may be modified by combining certain features of one embodiment with one or more features of another embodiment.

[0036] It is to be understood that not all features of the described embodiments have to be present for realizing the technical advantages provided by the embodiments of the present disclosure. The disclosed embodiments may be modified by combining certain features of one embodiment with one or more features of another embodiment.

[0037] Throughout the present figures and specification, the same reference numerals refer to the same elements. For the sake of clarity and conciseness, certain embodiments 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.

[0038] The indefinite articles a, an, and the include plural referents unless clearly contradicted or the context clearly dictates otherwise.

[0039] 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 may 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.

[0040] The term component according to the present disclosure may refer to, but is not limited to, a unit or module that performs a specific function within a larger system. A component may be, for example, a component used in the manufacturing process of a sporting good, such as a sole unit, a midsole, an outsole, an outsole element, a film or foil material, a sole plate, a shoe upper, a functional element.

[0041] Stated dimensions disclosed herein (for example, lengths, widths, thicknesses, etc.) include a range of +/20% of the stated dimensions. For example, stated a dimension of 10 centimeters (cm) includes a range of dimensions greater than or equal to 8 cm and less than or equal to 12 cm.

[0042] Embodiments described herein may provide a support plate for a sole structure that enhances performance properties, such as targeted stiffness, flexibility, and dynamic feel while maintaining protection for the foot that allows for optimal force distribution under heavy load. Thus, embodiments of the present disclosure may provide a support plate for a sole that improves at least one of stability, good force distribution, and flexibility and rebound in the forefoot region. Embodiments of the present disclosure may also provide a shoe that feels dynamic and is less heavy.

[0043] Embodiments described herein may provide a support plate configured to be arranged in a sole structure of a shoe, comprising: a first portion associated with a forefoot area of the sole structure; and a second portion associated with a heel area of the sole structure, wherein the support plate is thinner in at least a part of the first portion as compared to the second portion.

[0044] By providing the support plate with different thicknesses in the heel area and the forefoot, it is possible to achieve a higher level of support and control in the heel area and more flexibility with energy return in the forefoot as compared to shoes without the support plate. The support plate may be arranged in any position in the sole structure, for example fully or partially integrated in the midsole, sandwiched between midsole and outsole, fully or partially integrated in the outsole, etc. To be associated with the forefoot area and the heel area of the sole structure, the support plate must have a certain minimum dimension, such that it can extend from one area to the other. The thickness of the support plate may be configured such that the desired distribution of functionality is achieved, for example, higher flexibility in the forefoot area and higher stiffness in the heel area.

[0045] The support plate may be flat (for example, within ten percent of being flat) as well as concave and/or convex, or the support plate may have any other plate-like shape. In an example embodiment, the support plate may have a plate-like shape.

[0046] The support plate disclosed herein may be useful in any kind of sports activity where the distribution of force is required, such as basketball, volleyball, handball, tennis, etc. The support plate disclosed herein may also be useful in activities that benefit from increased support and control of the user's stance, such as, but not limited to, weightlifting activities or functional fitness activities.

[0047] In some embodiments, the support plate may comprise a middle portion associated with a mid-foot area of the sole structure, where the middle portion connects the first and the second portion, and the middle portion may comprise reinforcement ribs.

[0048] The reinforcement ribs may provide additional stiffness and more stability for the support plate (as compared to a support plate without the reinforcement ribs) and thus the sole structure and shoe provided therewith. The reinforcement ribs may be provided in the form of an increase in material thickness of the middle portion, for example, the reinforcement ribs may be integrally formed with the support plate. Alternatively, the reinforcement ribs may also be separate parts that are attached, for example glued, onto the middle portion. In some embodiments, the reinforcement ribs extend in longitudinal direction, such as along the axis from heel to toe. In some embodiments, the support structure may comprise at least two reinforcement ribs, and the reinforcement ribs may comprise a longitudinal extension of greater than or equal to two centimeters (cm) and less than or equal to ten cm and may protrude from the surface of the middle portion by greater than or equal to two millimeters (mm) and less than or equal to five mm.

[0049] In some embodiments, the middle portion may be configured to allow torsion ability, for example, the first portion and the second portion may be connected by the middle portion such that a torsion movement is allowed between the first portion and the second portion.

[0050] As the present disclosure is directed to a support plate for a sole structure of a shoe, certain directions used herein refer to the terminology used in connection with shoe technology. Thus, the term length when used herein in connection with the support plate denotes a longitudinal direction in the heel-to-toe axis. The width is used to describe dimensions in the medial to lateral (ML) axis. In some embodiments, the ML axis may be perpendicular to the heel-to-toe axis (for example, within 20 degrees of being perpendicular). The thickness is used to describe dimensions in a vertical axis. In some embodiments, the vertical axis can be perpendicular to the heel-to-toe axis and the ML axis (for example, within 20 degrees of being perpendicular).

[0051] In some embodiments, the first portion and the second portion may be wider in the medial-lateral direction than the middle portion. In some embodiments, the second portion may be wider than the first portion.

[0052] The first portion and the second portion being wider than the middle portion allows the support plate to follow the anatomy of a human foot and can provide stability in the forefoot and heel regions, while at the same time providing sufficient torsion ability. Thus, the support plate disclosed herein allows some torsion flexibility along the longitudinal direction, which may increase comfort and versatility of a shoe provided with such a support plate. When the second portion is wider than the first portion, stability in the heel area may be increased. This may become useful for certain athletic activities that require a firm stance of the athlete, as for example when working with weights, or during functional fitness activities. Alternatively, the first and second portion may also be of the same width or the first portion may be wider than the second portion.

[0053] In some embodiments, the second portion may comprise at least one wing extending upwards (e.g., in the vertical direction) to support the heel of a user.

[0054] The wing may serve as a stabilizing or control element to support the heel and thus ankle of a user during exercise. The wing may for example have a semi-circular shape to surround the heel of a user. To increase the effectiveness of the wing, the wing may extend upwardly from the second portion by at least 5 mm, for example greater than or equal to 5 mm and less than or equal to 50 mm. In some embodiments, the wing or wings maybe integrally be formed with the second portion, or alternatively as a separate part that is attached to the second portion.

[0055] In some embodiments, the second portion may comprise at least two wings being arranged opposite each other on the lateral side and the medial side of the support plate. As mentioned above, the wings may extend upwards by greater than or equal to 5 mm and less than or equal to 50 mm and may be dimensioned and arranged such that the heel of a user fits between the two wings. In some embodiments, the wings may extend longitudinally from the second portion, for example between the heel area and the midfoot portion. This arrangement may increase the stability of such an equipped shoe in the heel area. It is possible, for example, to combine the support plate disclosed herein with a soft midsole made from, for example, a foam material, such that the shoe has good cushioning properties for walking, running or jumping activities and at the same time improved stabilization properties for weightlifting or similar activities, that benefit from a good guidance of the stance of an athlete.

[0056] In some embodiments, the first portion may comprise at least two fingers extending from a middle portion connecting the first and the second portion. In some embodiments, the at least two fingers may extend from the first portion towards a toe-end of the support plate. In some embodiments, one finger may be arranged on the lateral side and the other finger may be arranged on the medial side. In some embodiments, the at least two fingers may extend from the second portion towards the toe-end of the support plate.

[0057] In some embodiments, the first portion may comprise separate fingers that may be independently movable with respect to each other. The ability to move the fingers independently can increases the flexibility of the forefoot region. In some embodiments, the fingers may be directly joined to the first portion. In some embodiments, there may be a middle portion in between the first portion and the fingers, as described above and as it will be described in more detail in connection with the figures. In some embodiments, the fingers may extend to the toe-end of the sole.

[0058] In some embodiments, each finger may comprise a hook, wherein the hook of the finger on the lateral side may be directed to the medial side and the hook of the finger on the medial side may be directed to the lateral side.

[0059] The hooks may offer better coverage of the foot area (as compared to embodiments without hooks), by still offering the advantages of independent movable fingers. The hooks, which may form the ends of the fingers, may be arranged in the same plane as the rest of the fingers, which may be the plane defined by the longitudinal axis and the medial-lateral axis. In other words, the fingers may extend from the second portion or the middle portion towards the toe end and may be straight or provided with a slight curvature, so as to mimic the shape of a foot. In some embodiments, the end tips of the fingers may be angled with respect to the rest of the finger, by for example 45, 90 or 135 or even more. In some embodiments, when the hook of the finger on the lateral side is directed to the medial side and the hook of the finger on the medial side is directed to the lateral side, the two fingers may form a partial circle, which may provide support to not only of the medial and lateral sides of the foot of the user, but also to the toe area.

[0060] In some embodiments, the finger on the medial side may be configured to support a big toe of a user.

[0061] By extending the finger to the region of the big toe of the user, it is possible to adjust the support and flexibility in the big toe area. When doing exercises, the big toe and the corresponding muscles in the foot have an essential role for stabilizing the footstep and transmitting forces from the user to the ground. Thus, supporting the big toe area may improve the overall efficiency of a shoe equipped with such the support plate disclosed herein.

[0062] In some embodiments, a third finger (for example, an additional finger) may be provided between the at least two fingers. In some embodiments, the third finger may be shorter than either one of the at least two fingers.

[0063] Having three fingers extending from the middle portion (or the first portion) may provide stability while at the same time providing the desired flexibility in the forefoot region. In some embodiments, the properties of the three fingers may be adjusted to achieve the desired mix of flexibility and stability to support the foot. In some embodiments, the additional finger (for example, a middle finger) may have a higher flexibility than the medial and lateral fingers such that the medial and lateral fingers may offer a higher degree of support while the additional finger may be adjusted for a higher degree of flexibility. In some embodiments, the fingers may have the same degree of flexibility and/or the same degree of support.

[0064] In some embodiments, the fingers may taper towards the toe-end of the support plate.

[0065] In some embodiments, the thickness of the fingers may be tapered towards the toe-end. For example, the fingers may become thinner as the fingers approach the toe-end. Thus, the flexibility of the fingers, and thus the first portion, may increase from the middle portion or the second portion towards the toe-end. This flexibility may enhance the dynamic feel of the forefoot region, which may be desirable when the shoe is, for example, used for running activities and other dynamic movements (such as double unders, burpees, box jumps, etc.). The amount of tapering, for example the relation between the thinnest part of the fingers and the thickest part of the fingers, may provide an additional level of freedom for adjusting the desired flexibility of the first portion.

[0066] In some embodiments, the length of the fingers may be at least 10 times more than the maximum thickness of the fingers. In some embodiments, the length of the fingers may be at least 20 times more than the maximum thickness of the fingers. In some embodiments, the length of the fingers may be at least 30 times more than the maximum thickness of the fingers. In some embodiments, the width of the fingers may be at least 3 times more than the maximum thickness of the fingers. In some embodiments, the width of the fingers may be at least 5 times more than the maximum thickness of the fingers. In some embodiments, the width of the fingers may be at least 8 times more than the maximum thickness of the fingers.

[0067] Generally speaking, the fingers are longer than they are wide or thick. In an example embodiment, the fingers may have a maximum thickness of 2 mm (for example, 2 mm+/10%), which would result in the fingers having a length of at least 40 mm with the length being at least 20 times more than the maximum thickness. Similarly, a width of at least five times more than the maximum thickness translates in this example to a width of at least 10 mm. Thus, the fingers are thin because the fingers form a part of the support plate.

[0068] In some embodiments, the fingers may have a rectangular cross-section. A rectangular cross section may provide some advantages in manufacturing of the support plate, and a rectangular cross section allows for a large degree of freedom in adjusting the physical properties of the fingers by choosing suitable relationships between length, width and thickness. In some embodiments, the above-mentioned dimensions may apply for a rectangular cross section.

[0069] In some embodiments, the fingers may be hollow. For example, the fingers may have a rectangular cross sectional shape and an inner hollow section that may have a rectangular cross-sectional shape or another cross-sectional shape. Alternatively, the fingers may have other cross-sectional shapes such as triangular or round, and fingers having these shapes may be hollow or solid.

[0070] In some embodiments, the first portion may have a thickness of greater than or equal to 0.5 mm and less than or equal to 5.0 mm and the second portion may have a thickness of greater than or equal to 1.0 mm and less than or equal to 8.5 mm. In some embodiments, the first portion may have a thickness of greater than or equal to 0.7 mm and less than or equal to 2.5 mm and the second portion may have a thickness of greater than or equal to 1.5 mm and less than or equal to 4.5 mm.

[0071] These ranges of thicknesses provided above may provide enhanced properties as explained above, such as achieving a balance between flexibility and stability to support the foot of the user.

[0072] In some embodiments, the thickness of the fingers may change based on the materials used. In some embodiments, the fingers may be formed from thermoplastic polyurethane (TPU), carbon fiber, or any other material that may provide the desired properties. The dimensions of the fingers may also vary depending on the material used and the degree of hardness/softness desired. In some embodiments, the materials may comprise cavities, for example, to achieve greater rigidity at a lower weight.

[0073] In some embodiments, the first portion may have a thickness of greater than or equal to 0.2 mm and less than or equal to 10.0 mm, and the second portion may have a thickness of greater than or equal to 0.5 mm and less than or equal to 15.0 mm.

[0074] In some embodiments, the support plate may be configured to distribute the load over the entirety of the bottom of the foot.

[0075] In some embodiments, it may be desirable to achieve a combination of cushioning/flexibility and stiffness while maintaining a flexible forefoot that has a dynamic feel. To achieve this combination, the support plate may be large enough such that it extends over a substantial portion (for example, at least 70%) of the bottom of the foot of the user and to the support plate stiff may be stiff enough such that the load may be evenly distributed over the bottom of the foot of the user. In some embodiments, the desired combination of cushioning/flexibility may be achieved by having the support plate extend from the heel area to the toe area.

[0076] In some embodiments, the second portion may be stiffer than the first portion.

[0077] In some embodiments, the stiffness of the support plate may be adjusted by material choice, thickness of the material, or the geometry. In some embodiments, the second portion being stiffer than the first portion can allow for increased support and stability in the heel area of the foot, while maintaining a flexible and dynamic feel in the forefoot region. Thereby, users may feel protected and stable during workouts involving, for example, weights, while still having the feel of a comfortable and dynamic sports shoe.

[0078] In some embodiments, the higher stiffness of the second portion as compared to the first portion may be realized by an increased thickness of the second portion as compared to the thickness of the first portion. In some embodiments, the higher stiffness of the second portion as compared to the first portion may be realized by the second portion having a different geometry than the first portion (for example, a different cross sectional shape, a different overall shape, etc.).

[0079] In some embodiments, the stiffness of the different portions of the support plate may be adjusted by using a combination of different thicknesses and different geometries for the different portions (the first portion, the second portion, the middle portion, etc.). In an example embodiment, the above mentioned wings may be provided at the second portion to increase the stiffness of the support plate. In some embodiments, reinforcement elements, such as reinforcement ribs, may be provided at the second portion at suitable locations, or on the middle portion between the first and second portion, to increase the stiffness of the support plate.

[0080] In some embodiments, the second portion may comprise an aperture in the heel area configured to provide cushioning for the heel of the user.

[0081] In some embodiments, the support plate may be made from a material that is stiffer and has less cushioning than the material of the midsole. By providing an aperture or hole in the heel area, the heel of a user may not apply pressure directly on the support plate, but instead the main force may be directed to the aperture. Since the support plate is arranged in the sole structure, for example integrated in a cushioning midsole or positioned in the outsole, the force of the foot may be directed through the aperture and to the midsole material. Thus, the aperture or hole in the heel region may provide more comfort through foam cushioning while also providing stability through the surrounding construction of the second portion that provides stability in the heel area.

[0082] In some embodiments, the first portion may comprise at least one wing extending upwards to support the forefoot of a user. In some embodiments, the first portion may comprise at least two wings being arranged opposite each other on the lateral and medial side of the support plate.

[0083] The wings in the forefoot area may have a similar purpose as the wings of the heel area, discussed above. Thus, the wing(s) may serve as a stabilizing or control element to support the forefoot of a user during exercise. To increase the effectiveness of the wing, the wing(s) may extend upwardly from the first portion by at least 5 mm, for example greater than or equal to 5 mm and less than or equal to 50 mm. The wing(s) may be integrally formed with the first portion, or alternatively may be a separate part that is attached to the first portion. In some embodiments, the first portion may comprise at least two wings being arranged opposite each other on the lateral and medial side of the support plate.

[0084] In some embodiments, the toe end of the first portion may be straight. In some embodiments, the toe end of the first portion may bend upwards.

[0085] In some embodiments toe end of the first portion, which is the end of the first portion extending towards the toe area, may be straight or bend slightly upwards. The tip of the first portion may, for example, bend upwards by at least 5 mm compared to the rest of the support plate. In some embodiments, the tip of the first portion may bend upwards as compared to the rest of the support plate by greater than or equal to 5 mm and less than or equal to 20 mm. The bend may facilitate the integration of the support plate in a sole structure of a shoe, for example where the first portion extends into the toe area.

[0086] In some embodiments, the support plate may be made from TPU.

[0087] TPU may be suitable for performance footwear like sports shoes, as TPU has a comparatively low weight, a high life span, good temperature stability and it is easy to process into the required shape as compared to other materials that may be used in sports shoes. In some embodiments, other materials such as carbon fibers, strung elements, KEVLAR fibers, 4D prints, DYNEEMA mats, etc., may be used instead or in addition to a base material (such as TPU) to create additional opportunities for adjusting stiffness and flexibility.

[0088] In some embodiments, the support plate may have a length of greater than or equal to 10 cm, greater than or equal to 15 cm, or greater than or equal to 20 cm. In some embodiments, the support plate may have a width along the medial to lateral axis (ML) of greater than or equal to 3 cm, greater than or equal to 4 cm, or greater than or equal to 6 cm.

[0089] These values for the length and width of the support plate may help to achieve the desired effects of the support plate, such as good force distribution from the foot through the entire midsole to the ground and/or a stable feel and sufficient foot protection.

[0090] In some embodiments of the present disclosure, a sole for a shoe such as a sports shoe, such as a functional fitness and/or training shoe may comprise a sole structure including a support plate in accordance with any of the embodiments described herein.

[0091] Since the sole of this embodiment may comprise the support plate as described elsewhere, it may be understood that the technical properties of the support plate shown or described above are likewise applicable to the sole.

[0092] In some embodiments, a shoe, in particular a sports shoe, such as a functional fitness and/or training shoe, may comprise a support plate in accordance with any of the embodiments described herein. In some embodiments, the shoe may comprise a sole structure, and the support plate may be arranged in the sole structure.

[0093] The expression arranged in the sole structure is to be understood in its broadest sense and the support plate may thus for example be arranged in the midsole and/or the outsole, or it may be arranged between midsole and outsole, as well as any other suitable location of the sole structure. The support plate disclosed herein may be useful for functional fitness and/or training shoes, as it may enable the provision of a lightweight shoe that offers a desirable combination of cushioning with a stiff support where needed.

[0094] In some embodiments of the shoe, the support plate may at least be partially visible from below an outsole of the sole structure, from a medial side, a heel side and/or a lateral side of the shoe.

[0095] By arranging the support plate such that it may be visible from the outside, the support plate may be directly visible not only for a customer, but also for any user, who may have several different sports shoes to choose from. Thus, by making the support plate visible, a user may choose the right kind of shoe for the intended activity.

[0096] In some embodiments of the shoe, the support plate may be at least partially embedded in the midsole and/or the outsole of the shoe such that the support plate may be visible form the bottom of the outsole. In some embodiments, the support plate may be positioned between the midsole and the outsole so that the support plate may be visible from the bottom of the outsole.

[0097] In some embodiments of the shoe, the support plate may lie in a plane defined by a heel to toe axis (HT) and a medial to lateral axis (ML) of the sole structure (for example, at least 80% of the support plate may lie in the plane defined by the heel to toe axis and the medial to lateral axis).

[0098] In some embodiments of the shoe, the midsole material may comprises ethyl-vinyl-acetate (EVA) and/or a foam material (such as expanded thermoplastic polyurethane (eTPU)).

[0099] Foam material may be useful to provide for cushioning and also energy return effect, since such materials may have good elastic and cushioning properties. Moreover, depending on the desired degree of cushioning, support, stability and/or solidity, a softer or harder material may be used. Using softer or harder materials may allow for the ability to fine-tune the response of the midsole under a pressure load on the sole. It may also be possible that the choice of the material for the mid-sole can be based on the material of the upper and/or of the outsole. This may have an advantage with respect to attachment of the respective parts (for example, attaching parts comprising the same material may be easier than attaching parts comprising different materials). In some embodiments, EVA may be used for the midsole material in combination with the support plate.

[0100] In some embodiments, one or more of the at least two fingers may comprise a through hole. In some embodiments, the through hole may comprise a shape that follows the contour of the finger.

[0101] Providing a through hole that follows the contour of the finger may allow for a more uniform distribution of forces across the forefoot area (as compared to embodiments that do not comprise a through hole), thereby reducing localized stress concentrations. This may enhance the durability of the support plate and may improve user comfort by reducing pressure points during use.

[0102] In some embodiments, the through hole of one or more fingers may extend along at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, or at least 80% of the length of the one or more fingers.

[0103] By extending the through hole along a portion of the length of the one or more fingers, the structural integrity of the one or more fingers may be maintained while reducing material usage. This configuration may support the balance between weight reduction and mechanical performance, and may result in a lighter yet robust support plate that enhances athletic performance as compared to embodiments that do not comprise the through hole.

[0104] In some embodiments, the first portion may comprise at least three fingers. In some embodiments, the first portion may comprise at least four fingers. In some embodiments, the first portion may comprise at least five fingers.

[0105] The inclusion of at least three, at least four, or at least five fingers in the first portion may increase the contact area between the first portion and the forefoot, thereby improving lateral stability and force distribution as compared to embodiments that comprise fewer fingers. This configuration may also enhance the adaptability of the support plate to various foot shapes, and may provide a more customized fit and improved performance during dynamic movements.

[0106] In some embodiments, one or more of the at least two fingers may have a width along the medial to lateral axis (ML) of at least 10%, at least 20%, at least 30%, or at least 40% of the width of the second portion.

[0107] In some embodiments, the proportional width of the fingers relative to the second portion may ensure that the second portion provides sufficient lateral support while maintaining flexibility. This configuration may improve the overall stability of the shoe during lateral movements (as compared to shoes without the support plate), such as cutting or pivoting, without compromising forefoot mobility.

[0108] In some embodiments, one or more fingers may comprise a widened shape, such that the first portion may have a greater width along the medial to lateral axis (ML) as compared to the second portion. For example, a distance between a lateral-most finger and a medial-most finger may be greater the width of the second portion along the ML axis.

[0109] In some embodiments, the widened shape of the fingers may increase the stiffness of the forefoot area, for example at the edges of the forefoot area, which may enhance lateral support and may reduce the risk of foot fatigue. This feature may also contribute to a snappier feel, and may improve the responsiveness of the shoe during high-intensity activities as compared to shoes that do not include this configuration.

[0110] In some embodiments, the first portion may tapers in thickness towards the toe-end of the support plate, such that the first portion is thinner at the toe-end of the support plate than the second portion.

[0111] The tapering thickness of the first portion may provide a gradient of flexibility, with greater flexibility at the forefoot and increased stiffness at the heel. This design may optimize energy return during toe-off phases of running or jumping, thereby enhancing athletic performance and reducing strain on the foot muscles.

[0112] In some embodiments, the second portion may comprise a diamond-shaped aperture in the heel area. In some embodiments, the diamond-shaped aperture may be configured to enhance stability and prevent collapse or flexing of the heel area.

[0113] The diamond-shaped aperture in the heel area may provide a structurally efficient design that may enhance stability by resisting deformation under load. This feature may also reduce the overall weight of the support plate while maintaining its mechanical strength, thereby contributing to improved comfort and performance as compared to embodiments that do not comprise the diamond-shaped aperture.

[0114] In some embodiments, the second portion may comprise a raised middle surface configured to resist deformation under load and provide enhanced structural integrity as compared to embodiments that do not comprise the raised middle surface.

[0115] In some embodiments, the raised middle surface in the second portion may increase resistance to compression and flexing in the heel area. This feature may help to ensure that the support plate maintains its shape and functionality under high-impact conditions, such as landing from a jump, thereby improving durability and user safety as compared to embodiments that do not comprise the raised middle surface.

[0116] FIG. 1 shows a support plate 1 from two perspective views. The left-hand view shows a perspective view of the bottom of the support plate 1, and the right-hand view shows an angled perspective view of the top of the support plate 1. In some embodiments, the support plate 1 may be configured to be a part of a sole structure of a shoe. The support plate 1 may comprise a first portion 10, a second portion 20 and a middle portion 30 connecting the first and the second portions. The reference sign 2 indicates the medial side of the support plate and reference sign 3 the lateral side.

[0117] The second portion 20 may be associated with the heel area of the sole structure of the shoe. In some embodiments, the second portion 20 may comprise two wings 21, 22 that are arranged opposite each other on the lateral side 2 and the medial side 3 of the second portion 20. The wings 21, 22 extend upwards (for example, away from a ground facing surface of the support plate 1) to support the heel of a user. In some embodiments, the second portion 20 may comprise an aperture 25 in the heel area that is configured to provide additional cushioning for the heel of a user. In some embodiments, wings similar to the wings 21, 22 may also be provided in the forefoot area, for example on the outer edges of a first finger 12 (for example, a medial finger) and a second finger 11 (for example, a lateral finger), to provide additional support for the forefoot of a user.

[0118] In some embodiments, the first portion 10 may comprise three fingers extending from the middle portion 30 towards the toe-end or free end 15 of the support plate 1. The first finger 12 may be arranged on the medial side 2, and opposite therefrom the second finger 11 may be arranged on the lateral side 3. A third finger 13 may be arranged between the first finger 12 and the second finger 11. In some embodiments, the third finger 13 may be shorter than the first finger 12 and the second finger 11 such that the third finger 13 does not extend as far toward the toe-end of the support plate as either of the first finger 12 or the second finger 11. In some embodiments, the three fingers may form the first portion 10 such that the first portion 10 may be made from the first finger 12, the second finger 11, and the third finger 13.

[0119] In some embodiments, the first finger 12 may comprise a hook 121 located at the toe-end 15, and the second finger 11 may comprise a hook 111 located at the toe-end 15. In some embodiments, the hook 121 of the first finger 12 may be directed towards the lateral side 3 and the hook 111 of the second finger 11 may be directed to the medial side 2. In some embodiments, the first finger 12 may be configured to support the big toe of a user. For example, the first finger 12 may comprise a shape that extends around and/or underneath the big toe of the user to support the big toe of the user. In some embodiments, the support plate is dimensioned to distribute the load over the entirety of the bottom of the foot of a user. Such embodiments are described with reference to FIGS. 2-7.

[0120] In some embodiments, the middle portion 30 may comprise reinforcement ribs 32 that extend in longitudinal direction. The reinforcement ribs 32 may extend partially into the first portion 10 and may be integrally formed with the support plate 1. In some embodiments, the reinforcement ribs 32 may comprise a thicker portion of material of the middle portion 30. In some embodiments, the reinforcement ribs may be formed separately from the middle portion 30 and may be coupled to the middle portion 30. As shown, the middle portion 30 may comprise three reinforcement ribs 32. In some embodiments, the middle portion 30 may comprise more or fewer reinforcement ribs 32 (for example, the middle portion 30 may comprise two reinforcement ribs 32, four reinforcement ribs 32, etc.).

[0121] FIG. 2 shows the support plate 1 of FIG. 1 in two further perspectives. For clarification purposes, the longitudinal direction (i.e., longitudinal axis) HT is indicated in the right-hand illustration of FIG. 2, which is the direction extending from heel to toe. The width of the support plate 1 is measured along the medial to lateral axis ML. The thickness of the support plate 1 is measured along the vertical axis T that is indicated in the left-hand illustration of FIG. 2.

[0122] FIG. 3 shows a top view and two side views of the support plate 1 of FIG. 1. FIG. 3 is used in the following to discuss some of the dimensions and geometric particularities of the support plate 1. In some embodiments, the thickness of the support plate 1 may decrease from the middle portion 30 towards the free end 15 of the first portion 10. For example, the thickness of the support plate 1 in the area of the first portion 10 along the section B-B may be 1.5 mm. In section C-C, the thickness of the support plate 1 may be 2.0 mm and in section D-D, which corresponds to the middle portion 30, the support plate 1 may have a thickness of 2.5 mm. In section E-E, which corresponds to the second portion 20, the thickness of the support portion 1 may be at least 2.5 mm. Thus, because the second portion 20 may be thicker than the first portion 10, the second portion 20 may be stiffer than the first portion 10. In some embodiments, the overall length of the support plate 1, that is the extension in longitudinal direction HT, may for example be 20 centimeters. In some embodiments, the length of the support plate 1 may be longer or shorter than 20 cm. In some embodiments, the length of the support plate 1 may be based on the length of the shoe in which the support plate 1 is assembled.

[0123] In some embodiments, the length of the first finger 12 may be for example 120 mm as measured from the free end 15 of the first finger 12 towards the middle portion 30. Thus, in some embodiments, the finger 12 may be about 60 times longer as it is thick (for example, greater than or equal to 50 times longer than it is thick and less than or equal to 70 times longer than it is thick). Similarly, the width of first finger 12 may be for example 15 mm such that finger 12 may be about 10 times as wide as it is thick (for example, greater than or equal to 5 times as wide as it is thick and less than or equal to 15 times as wide as it is thick).

[0124] As shown in the left- and right-hand illustrations of FIG. 3, the wings 21, 22 extend upwardly in the heel area (for example, away from a ground facing surface of the support plate 1). In some embodiments, the wings 21,22 may extend 20 mm in the vertical direction (for example, along the axis T as shown in FIG. 2).

[0125] FIG. 4 shows a sole structure 40 comprising the support plate 1 of FIG. 1 in a 3D perspective view. The support plate 1 is arranged in an outsole 41 of the sole structure 40 such that the support plate 1 may be partially visible from a bottom side of the sole structure 40 (for example, a ground facing side of the sole structure 40). The wings 21,22 may be visible due to corresponding openings in the outsole 41. In some embodiments, a midsole may be arranged on top of the support plate 1 to achieve a sandwich-like construction of the outsole 41, the support plate 1, and the midsole. FIG. 4 is merely one example how the support plate 1 may be arranged inside of a sole structure 40, and other arrangements are likewise possible. As shown, the support plate 1 may be arranged in a plane defined by the heel to toe axis (HT) and the medial to lateral axis (ML).

[0126] FIG. 5 shows a schematic view of a support plate 5 according to some embodiments. As compared to the support plate 1, the support plate 5 may comprise a second portion 520 in the heel area and a first portion 510, which may be formed by three fingers 511 (a lateral finger), 512 (a medial finger) and 513 (a middle finger, an additional finger, etc.) extending towards a toe end 515 of the support plate 5. In some embodiments, the lateral finger 511 may be shorter than the additional finger 513, which in turn may be shorter than the medial finger 512. In some embodiments, the medial finger 512 may be wider than the other fingers, thereby providing more stiffness than, for example the additional finger 513 or the lateral finger 511. Thereby, the medial finger 512 may be configured to support the big toe of a user. Similar to the support plate 1, the fingers 511, 512, 513 may taper towards the toe end 515 of the support plate 5. For example, the toe end 515 of medial finger 512 may have a thickness of 1 mm, while the second portion 520 may have a thickness of 3 mm. Thereby, the second portion 520 may be stiffer than the first portion 510. In some embodiments, the fingers 511, 512, 513 may move independently of each other, which may provide for more flexibility of the first portion 510 as compared to the second portion 520. Thus flexibility and stiffness of the support plate can be changed by changing the thickness and/or the shapes of the first portion 510 and the second portion 520.

[0127] In some embodiments, the support plate 5 may comprise two wings 521, 522 arranged opposite each other on the lateral and medial side of the support plate 5, and are configured to support the heel of a user. In some embodiments, the second portion 520 may comprise an aperture 525. In some embodiments, the aperture 525 may be smaller than the aperture 25 of the support plate 1. Changing the diameter or size of the aperture 525 may change the flexibility and stiffness of the second portion 520, and thus the support plate 5 as a whole. In some embodiments, a larger aperture offers more flexibility and less stiffness than a smaller aperture.

[0128] FIG. 6 shows a support plate 6 arranged in a sole structure of a shoe 60, according to some embodiments. In some embodiments, the support plate 6 may be visible from below the sole structure (for example, through a ground facing surface 626 of the shoe 60. The support plate 6 may comprise an elongated first portion 610 extending in the forefoot area and a second portion 620 in the heel area. In some embodiments, the second portion 620 may comprise two sets of support wings 621, 622 to provide stability in the heel area. Instead of extending upwardly (for example, in the direction T as shown in FIG. 2), the support wings 621, 622 of the support plate 6 may extend from the second portion 620 in the plane defined by the heel to toe axis (HT) and the medial to lateral axis (ML) of the shoe 60. In some embodiments, the support plate 6 may be provided with ventilation openings 61, which may provide air flow and moisture control. In some embodiments, the second portion 620 may have a ground facing surface 628 which may be smooth relative to the ground facing surface 626. In some embodiments, the ground facing surface 628 may contact the ground upon walking, running or exercising. The ground facing surface 628 may thus serve as a gliding pad to reduce friction between the shoe 60 and other surfaces, which may be beneficial for certain exercises such as a handstand push-up against a wall.

[0129] FIGS. 7a and 7b show a support plate 8 according to some embodiments. In some embodiments, the support plate 8 may comprise a first portion 810, a second portion 820 and a middle portion 830 connecting the first portion 810 and the second portion 820 with each other. In some embodiments, the support plate 8 may comprise three slits 827, 828, 829 extending in the longitudinal direction HT, which may increase the flexibility of the plate. In some embodiments, the second portion 820 may comprise fewer of the slits than the first portion 810. For example, the second portion 820 may comprise the slit 828, and the slits 827 and 829 may only extend a small amount into the second portion 820. Thus, in some embodiments, the second portion 820 may be stiffer than the first portion 810. In some embodiments, the second portion 820 may comprise a support wing 821, which is provided in form of a semi-circular shape (for example, extending from a medial side of the support plate 8 to a lateral side of the support plate 8, and around the back of the heel of the user), to surround the heel of a user. In some embodiments, the first portion 810 may comprise support wings 822 that extend in the plane defined by the heel to toe axis (HT) and the medial to lateral axis (ML).

[0130] FIG. 8 shows a support plate 9, according to some embodiments. The support plate 9 may be similar to the support plate 8 of FIGS. 7a and 7b, but the support plate 9 may comprise a support wing 921 that is different from the support wing 821 of the support plate 8. In some embodiments, the support wing 921 in the heel area may be attached to the second portion 920 at one location (for example, at a rear portion of the heel area) whereas the support wing 821 of the embodiments of FIGS. 7a and 7b may be attached to the second portion 820 at two or more locations (for example, at a medial side of the second portion 820, at a lateral side of the second portion 820, at a rear portion of the heel area of the second portion 820, etc.).

[0131] FIG. 9 shows a support plate 900, according to some embodiments. In some embodiments, the support plate 900 may be similar to the support plate 1 of FIGS. 1-4, with the difference between the embodiments being the structure of the first finger 12, the second finger 11, and the third finger 13. In some embodiments, one or more of the first finger 11, the second finger 12, or the third finger 13 may comprise a through hole (the through hole 11a being associated with the first second 11, the through hole 12a being associated with the first finger 12, and the through hole 13a being associated with the third finger 13). In some embodiments, the through holes 11a, 12a, 13a may comprise a shape that follows the contour of the respective fingers 11, 12, 13. In some embodiments, the fingers 11, 12, 13 may be configured to facilitate distribution of forces.

[0132] In some embodiments, the through holes 11a, 12a, 13a may extend along at least 10% of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 20% of the length of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 30% of the length of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 40% of the length of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 50% of the length of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 60% of the length of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 70% of the length of the respective fingers 11, 12, 13. In some embodiments, the through holes 11a, 12a, 13a may extend along at least 80% of the length of the respective fingers 11, 12, 13.

[0133] In some embodiments, the fingers 11, 12, 13 may have a width along the medial to lateral axis (ML) of at least 10% of the width of the second portion 20. In some embodiments, the fingers 11, 12, 13 may have a width along the medial to lateral axis (ML) of at least 20% of the width of the second portion 20. In some embodiments, the fingers 11, 12, 13 may have a width along the medial to lateral axis (ML) of at least 30% of the width of the second portion 20. In some embodiments, the fingers 11, 12, 13 may have a width along the medial to lateral axis (ML) of at least 40% of the width of the second portion 20.

[0134] In some embodiments, the fingers 11, 12, 13 may resemble a widened shape, such that the fingers have a greater with along the medial to lateral axis (ML) as compared to the second portion 20. For example, a width of the fingers 11, 12, 13 that extends along the ML axis from a medial-most portion of the first finger 12 to a lateral-most portion of the second finger 11 may be greater than the width of the second portion 20 along the ML axis.

[0135] In some embodiments, the first portion 10 may taper in thickness towards the toe-end 15 of the support plate 900, such that the toe-end portion of the first portion 10 may be thinner than the second portion 20.

[0136] In some embodiments, the second portion 20 may comprise the aperture 25 (shown as a diamond-shaped aperture 25 in the heel area). In some embodiments, the second portion 20 may comprise a raised middle surface configured to resist deformation under load and provide enhanced structural integrity (for example, similar to the reinforcement ribs 32 of the support plate 1).

[0137] 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.

[0138] 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 present disclosure.

[0139] 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.