Customizable forefoot rigidity sole elements

Abstract

The present invention provides a sole element configured to be placed in a shoe, preferably a sports shoe. [Solution] The sole element is a Strobel board (120) and / or an insole. The sole element includes means (110) for stiffening at least a portion (105a) of the sole element, and at least a portion (105a) of the sole element is located in at least one region configured to receive the forefoot. The sole element is configured to be placed in the shoe when the shoe is worn.

Description

Technical Field

[0001] The present invention relates to a sole element configured to be disposed in a shoe, preferably a sports shoe. The sole element is a strobel board and / or an insole. The sole element includes means for rigidifying at least a portion of the sole element, and at least a portion of the sole element is located in a region configured to receive the forefoot. The sole element is configured to be disposed in the shoe when the shoe is worn.

Background Art

[0002] Aiming to maximize an athlete's performance is at the core of the development and evolution of sports equipment. This is particularly true for sports shoes, such as running shoes, where an athlete's performance critically depends on the performance of the shoes. Therefore, much effort has been made to optimize the performance of sports shoes, especially running shoes.

[0003] An important indicator for evaluating the performance of a shoe is the energy return (resilience) and / or propulsion force of the shoe. For example, the energy return and / or propulsion force can be controlled by the rigidity of the shoe. In particular, a higher energy return and / or a higher propulsion force can be achieved by increasing the rigidity of the shoe.

[0004] Typically, shoes are manufactured with a predetermined rigidity that cannot be adjusted after the manufacturing process, thereby making rigidity, energy return and / or propulsion force permanent characteristics of the shoes. However, the preferred rigidity of shoes varies among athletes, and if the rigidity of the shoes does not match an athlete's specific preference, the athlete's performance may be significantly impaired.

[0005] Therefore, there is a need for a new technology to change and improve the performance of shoes, especially sports shoes, to address at least some of the above-mentioned drawbacks of the prior art and further improve other aspects.

Summary of the Invention

[0006] A first aspect of the present invention relates to a sole element configured to be placed in a shoe, preferably a sports shoe. The sole element is a strobel board and / or insole, and the sole element includes means for rigidifying at least a portion of the sole element. Specifically, at least a portion of the sole element is located in a region configured to receive at least the forefoot. Furthermore, the sole element is configured to be placed in a shoe when the shoe is worn.

[0007] For example, a Strobel board and / or insole may be configured to be placed in a shoe. Being configured to be placed in a shoe includes the sole element being permanently attached to the shoe. For example, the sole element may be placed in the shoe so as to be an integral part of the shoe. Specifically, the sole element may be permanently attached to at least a part of the shoe, for example, the upper and / or insole of the shoe. In particular, a Strobel board may be placed in the shoe so as to be an integral part of the shoe. As an addition or alternative, being configured to be placed in a shoe may include the sole element being configured so that the sole element can be received by the shoe. For example, the size and / or geometry and / or thickness of the sole element may be such that the shoe can receive the sole element. Specifically, an insole may be configured so that the insole can be received by the shoe, for example, by inserting the insole into the shoe.

[0008] The sole element includes means for stiffening at least a portion of the sole element. The means for stiffening may include at least one means for stiffening at least a portion of the sole element. The means for stiffening may be configured such that at least a portion of the sole element stiffened by the means for stiffening is located in a region configured to receive the forefoot. The region configured to receive the forefoot may include a region that receives at least a portion of the forefoot when the sole element is placed in the shoe. For example, the forefoot region may include a region related to the toes and / or phalanges of the foot.

[0009] Being configured to be positioned in a shoe when the shoe is worn may include the sole elements being positioned in a shoe when an athlete wears the shoe to perform an (exercise) activity. In other words, the sole elements may be configured to be positioned in a shoe at least during the (typical) use of the shoe, for example, while performing an (exercise) activity such as walking and / or running.

[0010] The forefoot stiffness of the sole element can be adjusted by stiffening at least a portion of the sole element located in the area configured to receive the forefoot. Adjusting the forefoot stiffness of the sole element allows for localized and specific adjustments to the responsiveness and / or energy return of the shoe with the sole element. This allows the forefoot stiffness and / or responsiveness of the shoe to be adjusted to the athlete's needs, optimizing the athlete's performance and increasing comfort when wearing the shoe.

[0011] Generally, means for stiffening at least a portion of the sole element may be configured to stiffen at least a portion of the shoe configured to receive the forefoot. Additionally or alternatively, means for stiffening at least a portion of the sole element may be configured to stiffen at least a portion of the shoe configured to receive the midfoot. Specifically, the means for stiffening may be positioned to extend from the portion of the shoe configured to receive the forefoot toward the portion of the shoe configured to receive the midfoot.

[0012] In some embodiments, stiffening at least a portion of the shoe configured to receive the forefoot and / or midfoot may include increasing the propulsive force associated with the shoe. Additionally or alternatively, stiffening at least a portion of the shoe configured to receive the forefoot and / or midfoot may include reducing the stud pressure associated with the shoe.

[0013] For example, the means for stiffening may be positioned to stiffen a portion of the shoe configured to receive the forefoot portion when the sole element is placed in the shoe. In other words, the means for stiffening may stiffen portions of the sole element and portions of the shoe. For example, stiffening of a portion of the shoe may be based on stiffening of a portion of the sole element. In particular, stiffening of a portion of the sole element by the means for stiffening may result in stiffening of a portion of the shoe when the sole element is placed in the shoe. At least a portion of the shoe stiffened by the means for stiffening may substantially correspond to at least a portion of the sole element stiffened by the means for stiffening. Alternatively, at least a portion of the shoe stiffened by the means for stiffening may be a lower portion of at least a portion of the sole element stiffened by the means for stiffening. Alternatively, at least a portion of the shoe stiffened by the means for stiffening may be an upper portion of at least a portion of the sole element stiffened by the means for stiffening.

[0014] Means of stiffening include stiffening the sole elements and / or at least a portion of the shoe to increase the propulsive force associated with the shoe. For example, the propulsive force associated with the shoe may include the energy return associated with the shoe. Specifically, the energy return of the shoe can be increased by stiffening at least a portion of the shoe configured to receive the forefoot. In particular, the energy return of the shoe associated with the forefoot region can be increased. Increasing the energy return associated with the forefoot region of the shoe minimizes the energy loss of the shoe, thereby optimizing the performance of the athlete wearing the shoe. For example, the increased energy return of the portion of the shoe configured to receive the forefoot may be particularly advantageous for athletes who use a forefoot landing technique.

[0015] As an addition or alternative, means of stiffening may include stiffening the sole elements and / or at least a portion of the shoe to reduce stud pressure associated with the shoe. Reducing stud pressure associated with the shoe may include reducing the pressure and / or force that the studs exert on the sole elements and / or the shoe based on the weight of the athlete wearing the shoe. Specifically, stiffening the sole elements and / or at least a portion of the shoe allows the force that the studs exert on the shoe and / or the sole elements and / or the foot to be distributed over a wider area, minimizing the pressure (force per unit area). Thus, stiffening the sole elements and / or at least a portion of the shoe enhances the comfort of wearing the shoe, including the sole elements, thereby contributing to the athlete's optimized performance. In particular, the reduced stud pressure and increased propulsion and / or energy return create a synergistic effect that allows the athlete wearing the shoe to achieve optimal performance.

[0016] Generally, sole elements may be arranged in a shoe such that at least a portion of the sole element is replaceable. In particular, at least a portion of the replaceable sole element may include means for rigidification.

[0017] Arranging the sole elements in a shoe so that at least a portion of the sole elements are replaceable may include the ability to replace at least a portion of the sole elements without substantially affecting the sole elements and / or other components of the shoe. For example, at least a portion of the sole elements does not have to be permanently fixed to other components of the shoe and / or insole, for example, it does not have to be fixed to other components by adhesive and / or stitching. As an addition or alternative, arranging the sole elements in a shoe so that at least a portion of the sole elements are replaceable may include the ability to replace at least a portion of the sole elements based on the athlete's needs. Generally, at least a portion of the replaceable sole elements may be located in an area configured to receive the forefoot. In some embodiments, at least a portion of the replaceable sole elements may substantially include a sole element, for example, a sole element that is itself replaceable. For example, when the sole elements include an insole, the sole elements may be replaceable.

[0018] By arranging the sole elements such that at least a portion of the sole elements, preferably a portion of the means for stiffening, is interchangeable, the stiffness of the sole elements and / or the shoe may be controlled based on the athlete's needs. In particular, at least a portion of the interchangeable one or more means for stiffening may be replaced with at least a different portion of the means for stiffening. In other words, a first portion of the means for stiffening may be replaced with a second portion of the means for stiffening.

[0019] Specifically, the first part of the means for stiffening and the second part of the means for stiffening may include different stiffening characteristics. For example, the first part may have a first stiffening characteristic, and the second part may have a second stiffening characteristic. In particular, the first stiffening characteristic of the first part may result in a first stiffness of the sole element and / or shoe. As an addition or alternative, the second stiffening characteristic of the second part may result in a second stiffness of the sole element and / or shoe. For example, the second stiffening characteristic of the second part may result in at least a portion of the sole element and / or shoe including the second part being stiffer than at least a portion of the sole element and / or shoe including the first part.

[0020] Specifically, at least a portion of the replaceable sole elements may be configured to be replaced and / or removed through an opening in the shoe. For example, at least a portion of the replaceable sole elements may be configured to be replaced and / or removed through an ankle opening in the shoe.

[0021] Replacing and / or removing at least a portion of the sole element through an opening in the shoe allows for easy and quick replacement of at least a portion of the sole element. Specifically, replacing and / or removing at least a portion of the sole element through the ankle opening of the shoe allows for replacement and / or removal of at least a portion of the sole element through a natural opening in the shoe, for example, an opening that the shoe will always have. In other words, if at least a portion of the sole element is replaced and / or removed through the ankle opening of the shoe, there is no need to introduce further, and / or additional openings, for example, further, and / or additional openings in the insole of the shoe. Thus, the shoe manufacturing process can be simplified and accelerated. Furthermore, the stability of the shoe can be increased because there is no need to introduce further openings, i.e., areas without material.

[0022] Generally, means for stiffening may include pockets configured to receive stiffening elements. In particular, the pockets may be configured to receive stiffening elements through openings.

[0023] The pocket may be located in an area configured to receive the forefoot. The pocket may have a size and / or geometry such that it can receive a stiffening element. Generally, the pocket may include and / or partition a cavity. For example, the pocket may have a size and / or geometry such that the size and / or geometry of the cavity corresponds to the size and / or geometry of the stiffening element. The pocket may include an opening into which the stiffening element is received, such as an access point to the cavity. Specifically, the pocket may be configured such that its opening faces the opening of the shoe when the sole element is placed in the shoe. In particular, the pocket may be configured such that its opening faces the ankle opening of the shoe.

[0024] Furthermore, the opening of the pocket may be such that the stiffening element can be removed from the pocket. In other words, the pocket may be configured to allow the stiffening element to be replaced. For example, the pocket may receive a first stiffening element having a first stiffening property. The first stiffening element may then be removed through the opening of the pocket, and a second stiffening element having a second stiffening property may be received.

[0025] Means for stiffening, including pockets configured to receive stiffening elements, allow for the efficient and easy replacement and / or substitution of stiffening elements. This efficient and easy replacement and / or substitution of stiffening elements contributes to the optimized regulation of the shoe's propulsion and / or energy return and / or stud pressure.

[0026] Specifically, the pocket may be provided inside the strobel board. Additionally or alternatively, the pocket may be at least partially attached to the strobel board. In particular, the pocket may be at least partially attached to the strobel board by sewing. Additionally or alternatively, the pocket may be at least partially attached to the strobel board by knitting.

[0027] For example, the pocket may be an integral part of the strobel board. For example, the strobel board and the pocket may be a single piece. For example, the first part of the pocket may extend from the strobel board, and the second part of the pocket may be provided inside the strobel board. Specifically, at least a part of the inside of the cavity of the pocket may be formed by the strobel board.

[0028] The pocket provided inside the strobel board enables the use of a single-piece strobel board. A single-piece strobel board enhances the stability of the pocket and contributes to the long life of the strobel board. Further, the pocket provided inside the strobel board enables the attachment of the pocket to the strobel board without creating seams, thereby contributing to optimized comfort when wearing the shoe.

[0029] Additionally or alternatively, at least a part of the pocket may be attached to the strobel board. For example, since the pocket is attached to the strobel board, a part of the pocket is formed by the strobel board. Additionally or alternatively, a separate pocket may be attached to the strobel board. In other words, a pre-made pocket that forms a cavity by itself may be attached to the strobel board.

[0030] Specifically, the pocket may be attached to the strobel board by sewing. For example, the pocket may be attached to the strobel board by sewing the outer region and / or the boundary region of the pocket to the strobel. Additionally or alternatively, the pocket may be attached to the strobel board by knitting. For example, the pocket may be attached to the strobel board by knitting the outer region and / or the boundary region of the pocket to the strobel.

[0031] By attaching the pocket to the strobel board by sewing and / or knitting, the pocket can be easily created on the strobel board. Further, attaching the pocket to the strobel board by sewing and / or knitting enhances the quality of the attachment, for example, an attachment that is particularly resistant to external forces, thereby contributing to the long life of the strobel board.

[0032] In some embodiments, the pocket may be disposed on a side surface of the strobel board configured to face the inside of the shoe.

[0033] For example, the pocket may be at least partially attached to a side surface of the strobel board configured to face the inside of the shoe. Additionally or alternatively, the pocket may be provided inside the strobel board such that at least a portion of the pocket extends from a side surface of the strobel board configured to face the inside of the shoe. For example, the pocket may be disposed on the side surface of the strobel board such that the opening of the pocket is disposed on a side surface of the strobel board configured to face the inside of the shoe.

[0034] Being facing the inside of the shoe may include at least a portion of the side of the Strobel board being covered by a component of the shoe. For example, at least a portion of the side of the Strobel board may be covered by an insole. In other words, a side of the Strobel board configured to face the inside of the shoe may not be directly (optically) accessible, for example, not visible through the ankle opening of the shoe, and may be covered by an insole.

[0035] Placing a pocket on the side of a Strobel board configured to face the inside of the shoe allows for the placement of the pocket's opening on the side of the Strobel board configured to face the inside of the shoe. Placing the pocket's opening on the side of a Strobel board configured to face the inside of the shoe facilitates the replacement of stiffening elements. In particular, placing the pocket's opening on the side of a Strobel board configured to face the inside of the shoe ensures that the pocket, for example, the pocket's opening, is (directly) accessible through an opening, for example, the shoe's ankle opening. This allows a first stiffening element received in the pocket to be moved from the pocket through the pocket's opening and through the shoe's ankle opening, and a second stiffening element may be inserted into the pocket through the ankle opening and the pocket's opening. Thus, placing a pocket on the side of a Strobel board configured to face the inside of the shoe optimizes the means for stiffening, for example, the replaceability of parts of the stiffening element.

[0036] Generally, pockets may include means for securing rigid elements. For example, the means for securing may include hook-and-loop fasteners.

[0037] For example, means for securing a stiffening element may include means for maintaining the stiffening element inside the pocket. Specifically, means for securing a stiffening element may include means for at least partially closing the opening of the pocket. Generally, means for securing may be configured to allow the stiffening element to be removed. In other words, means for securing a stiffening element may include means for reversibly securing the stiffening element. For example, means for securing a stiffening element may include hook-and-loop fasteners. Additional or alternative means for securing a stiffening element may include at least one button, preferably a push button. At least a portion of the means for securing a stiffening element may be positioned on the side of a Strobel board configured to face the inside of the shoe.

[0038] Means for securing the stiffening element, such as a hook-and-loop fastener for closing at least a portion of the pocket opening, allow the stiffening element to be fixed and maintained in the intended and / or pre-configured position. In particular, means for securing the stiffening element allow the stiffening element to remain inside the pocket, thereby ensuring that the stiffening element remains inside the area of ​​the Strobel board configured to receive the forefoot. Thus, when wearing the shoe, the stiffening element remains inside the pocket, stiffening the Strobel board and / or the area of ​​the shoe configured to receive the forefoot, thereby maximizing the energy return of the shoe, minimizing stud pressure associated with the shoe, and optimizing the performance of the athlete wearing the shoe.

[0039] Generally, means of increasing rigidity may include rigidity plates.

[0040] The rigid plate may include a configuration in which the extension of the rigid plate in a first direction is substantially smaller than the extension in a second direction. For example, the thickness associated with the rigid plate may be substantially smaller than the planar extension of the rigid plate. Specifically, the rigid plate may include continuous plates and / or connected plates. The rigid plate may include at least one recess. Additionally or alternatively, the rigid plate may include at least one opening.

[0041] Generally, the stiffening plate may be configured to be received by the pockets of the Strobel board. For example, the size and / or shape of the stiffening plate may be set so that it can be received by the pockets.

[0042] By using means for stiffening, including stiffening plates, it is possible to stiffen the Strobel board and / or the shoe with elements of small thickness, thereby minimizing changes in the shape of the Strobel board when the stiffening plate is placed inside the pocket. In particular, the use of stiffening plates minimizes the formation of bulges inside the Strobel board and / or deformation of the Strobel board when the stiffening plate is placed inside the pocket. Minimizing the formation of bulges inside the Strobel board and / or deformation of the Strobel board contributes to optimizing comfort when wearing the shoe.

[0043] In some embodiments, the means for stiffening may include stiffening elements at least partially attached to the Strobel board. Specifically, the means for stiffening may include stiffening elements at least partially attached to the Strobel board by adhesive. Additionally or alternatively, the means for stiffening may include stiffening elements at least partially attached to the Strobel board by stitching.

[0044] For example, a stiffening element may be attached to the Strobel board at its boundary and / or external region. In particular, at least a portion of the boundary and / or external region of the stiffening element may be sutured and / or sewn to the Strobel board. Specifically, the stiffening element may be configured such that at least a portion of its boundary and / or external region aligns with a portion of the boundary and / or external region of the Strobel board. In other words, a portion of the boundary and / or external region of the stiffening element may be sutured and / or sewn to a portion of the boundary and / or external region of the Strobel board. As an addition or alternative, at least a portion of the stiffening element may be attached to the Strobel board by adhesive. For example, adhesive bonding a portion of the stiffening element to the Strobel board may include bonding at least a central portion and / or intermediate portion of the stiffening element to the Strobel board. In some embodiments, the stiffening element may be bonded to the Strobel board substantially over the entire surface of the stiffening element facing the Strobel board.

[0045] Attaching stiffening elements to the Strobel board by adhesive and / or stitching facilitates the installation of the stiffening elements while simultaneously ensuring a stable installation, such as one that is resistant to external forces.

[0046] Generally, a stiffening element and / or stiffening plate may include at least one opening. For example, a stiffening element and / or stiffening plate may include at least two, preferably at least three, and most preferably at least four openings. Specifically, at least one opening may have an elliptical shape. For example, the semi-major axis of the ellipse may be substantially parallel to the extension direction of the Strobel board and / or shoe. Generally, a stiffening element and / or stiffening plate may have a rib-like structure. For example, at least one opening of a stiffening element and / or stiffening plate may be separated by at least one rib. For example, a stiffening element and / or stiffening plate may include at least one, preferably at least two, and most preferably at least three ribs. As an addition or alternative, a stiffening element and / or stiffening plate may include a lattice structure and / or a cell structure.

[0047] Preferably, stiffening elements and / or stiffening plates having at least one opening arranged in a ribbed structure and / or lattice structure and / or cellular structure allow for sufficient stiffening of the strobel board and the shoe containing the strobel board, while simultaneously minimizing the weight of the stiffening elements and / or stiffening plates.

[0048] As an addition or alternative, the stiffening element and / or stiffening plate may include at least one toe portion. For example, the stiffening element and / or stiffening plate may be configured such that at least one toe portion extends to the medial forefoot portion of the Strobel board. In particular, since at least one toe portion of the stiffening element and / or stiffening plate extends to the medial forefoot portion of the Strobel board, at least one toe portion is located in the area of ​​the Strobel board related to the big toe of the foot. As an addition or alternative, the stiffening element and / or stiffening plate may be configured such that at least one toe portion extends to the lateral midfoot portion and / or central midfoot portion of the Strobel board. Generally, the length of at least one toe portion may be at least 0.5 cm, preferably at least 1 cm, more preferably at least 1.5 cm, even more preferably at least 2 cm, and most preferably at least 2.5 cm.

[0049] Generally, at least a portion of the means for increasing rigidity may be injected into the Strobel board.

[0050] For example, injecting at least a portion of the means for stiffening into a Strobel board may include injecting at least a portion of the means for stiffening into a pre-fabricated Strobel board. For example, at least a portion of the means for stiffening may be injected into a Strobel board to form an insole board. Specifically, injecting at least a portion of the means for stiffening into a Strobel board may include placing a fabric, e.g., Strobel, into a mold. For example, the fabric may include a non-combustible material. In particular, the non-combustible material may include a nonwoven fabric. Injecting at least a portion of the means for stiffening into a Strobel board may further include injecting the material into and / or on the fabric, e.g., into and / or on a Strobel board. For example, the material may be injected into and / or on a nonwoven fabric. Specifically, the material may be injected into the fabric so that the material is at least partially fused into the fabric, e.g., a nonwoven fabric. Generally, the (injected) material may include polyamide. As an addition or alternative, the (injected) material may include a thermoplastic elastomer. For example, the thermoplastic elastomer may include a polyether block amide.

[0051] Generally, at least a portion of the stiffening agent may be injected into the Strobel board, so at least a portion of the stiffening agent is located in the forefoot region of the Strobel board. Additionally or alternatively, at least a portion of the stiffening agent may be injected into the Strobel board, so at least a portion of the stiffening agent is located in the midfoot region of the Strobel board. For example, at least a portion of the stiffening agent may be injected into the Strobel board, so at least a portion of the stiffening agent extends from the forefoot portion of the Strobel board to the midfoot region of the Strobel board. Injecting the stiffening agent into the midfoot region of the Strobel board can provide midfoot stiffness to the Strobel board, thereby improving the shoe's propulsion and / or energy return, thus optimizing the athlete's performance. Furthermore, injecting the stiffening agent into the Strobel board so that it extends from the forefoot portion of the Strobel board to the midfoot portion of the Strobel board allows for simultaneous stiffening of both the forefoot and midfoot portions of the Strobel. The Strobel's ability to simultaneously provide rigidity in the forefoot and midfoot maximizes the shoe's propulsion and / or energy return, thereby optimizing athlete performance.

[0052] As an addition or alternative, at least a portion of the means for stiffening may be cast and / or poured onto the Strobel board. For example, the means for stiffening may be cast and / or poured onto a side of the Strobel board configured to receive a foot. As an addition or alternative, the means for stiffening may be cast and / or poured onto a side of the Strobel board opposite to the side configured to receive a foot. Specifically, casting and / or pouring the means for stiffening onto the Strobel board may involve casting and / or pouring a material onto the Strobel board. For example, the material may include polyurethane.

[0053] Generally, Strobel boards may contain nonwoven material. Additionally or alternatively, Strobel boards may contain woven material. For example, a Strobel board may be a woven Strobel board. In some embodiments, a Strobel board may contain woven material. Generally, a Strobel board may contain non-combustible material. Additionally or alternatively, a Strobel board may contain material with limited elasticity. For example, a Strobel board may contain material that is substantially non-elastic. For example, a Strobel board containing material with limited elasticity facilitates the application of Strobel stitches, such as sewing the Strobel board to a shoe.

[0054] Generally, means for stiffening may be attached to and / or injected into the Strobel board such that the boundary of the stiffening means and the boundary of the Strobel board are separated. Separating the boundary of the stiffening means from the boundary of the Strobel board may include separating the boundary of the stiffening means from the boundary of the Strobel board by distance. In particular, the boundary of the stiffening means and the boundary of the Strobel board may be separated such that the distance between the boundary of the stiffening means and the boundary of the Strobel board is substantially uniform along the boundary of the stiffening means and / or the boundary of the Strobel board.

[0055] For example, the distance between the boundary of the means for rigidification and the boundary of the Strobel board is at least 5 mm, preferably at least 10 mm, more preferably at least 15 mm, more preferably at least 20 mm, and most preferably at least 25 mm. Additionally or alternatively, the distance between the boundary of the means for rigidification and the boundary of the Strobel board may be up to 10 cm, preferably up to 8 cm, more preferably up to 6 cm, even more preferably up to 4 cm, and most preferably up to 2 cm. In some embodiments, the distance between the boundary of the means for rigidification and the boundary of the Strobel board may be up to 1.5 cm, preferably up to 1 cm, more preferably up to 0.8 cm, even more preferably up to 0.6 cm, and most preferably up to 0.4 cm.

[0056] Generally, the shape and / or size of the means for stiffening may be adjusted to substantially correspond to a scaling change in the shape and / or size of a portion of the Strobel board. For example, the shape and / or size of the means for stiffening may be adjusted to substantially correspond to a scaling change in the shape and / or size of the forefoot portion of the Strobel board. Additionally or alternatively, the shape and / or size of the means for stiffening may be adjusted to substantially correspond to a scaling change in the shape and / or size of the midfoot portion of the Strobel board. For example, the shape and / or size of the means for stiffening may be scaled to separate the boundary of the means for stiffening from the boundary of the Strobel board. For example, the shape and / or size of the means for stiffening may include scaling the shape and / or size of a portion of the Strobel board by a factor of at least 0.8, preferably at least 0.85, more preferably at least 0.9, even more preferably at least 0.92, and most preferably at least 0.95.

[0057] In some embodiments, the means for stiffening may be attached at least partially to the insole of the shoe. In particular, the means for stiffening may be attached to the side of the insole configured to face the strobel of the shoe. As an addition or alternative, the means for stiffening may be attached to the side of the insole configured to face the insole of the shoe.

[0058] For example, the side of the insole configured to face the insole of the shoe may include the side of the insole opposite to the side of the insole configured to face the strobel of the shoe. Specifically, the means for stiffening may be injected into the insole of the shoe. Furthermore, the means for stiffening may be bonded to and / or glued to the insole of the shoe. For example, the insole of the shoe may include a sockliner. In particular, the means for stiffening may be injected into and / or bonded to and / or glued to the sockliner such that the means for stiffening may be positioned on the side of the sockliner configured to face the insole of the shoe.

[0059] Specifically, the means for stiffening may be attached to and / or injected into a portion of the insole, for example, the midfoot portion and / or the forefoot portion of the insole. Generally, an area may be associated with the means for stiffening. For example, the area associated with the means for stiffening may include the area of ​​the portion of the insole to which one or more means for stiffening are attached and / or the area of ​​the portion of the insole to which one or more means for stiffening are injected. Specifically, the area associated with the means for stiffening may be at least 40%, preferably at least 50%, more preferably at least 60%, even more preferably at least 70%, and most preferably at least 80% of the corresponding area of ​​the insole. For example, the area of ​​the insole corresponding to the area of ​​the means for stiffening may include the area of ​​the portion of the insole surrounding and / or encompassing the means for stiffening. In particular, the portion of the insole surrounding and / or encompassing the means for stiffening may surround and / or encompass the means for stiffening from its starting point to its ending point. In some embodiments, the starting point of the means for stiffening may be located in the forefoot portion of the insole. Furthermore, the ending point of the means for stiffening may be located in the midfoot and / or heel region of the insole.

[0060] For example, a shoe such as a sports shoe may be combined with at least two insoles. For example, a first insole may be associated with a first stiffness, and a second insole may be associated with a second stiffness. Specifically, the insoles and / or the shoe may be configured so that the insoles are interchangeable. For example, the shoe may initially include a first insole, for example, the first insole may be placed inside the cavity of the shoe. Next, the first insole may be removed from the shoe, for example, through the ankle opening of the shoe. After the first insole has been removed from the shoe, the second insole may be inserted into the cavity of the shoe, for example, through the ankle opening of the shoe. Generally, the means for first stiffening may be attached to and / or injected into the first insole. The means for first stiffening may be attached to and / or injected into the side of the first insole configured to face the insole of the shoe. For example, the first means for stiffening may be configured to increase the stiffness and / or propulsion of the shoe, e.g., the shoe including the first insole. Furthermore, the second insole does not have to include means for stiffening the insole, for example, additional material for stiffening the insole does not have to be attached to and / or injected into the second insole. In other words, the stiffness associated with the second insole corresponds to the stiffness of a typical, e.g., unstiffened insole.

[0061] Combining shoes, such as sports shoes, with at least two (interchangeable) insoles, for example, insoles with different stiffnesses, makes it possible to adapt the stiffness of the shoes to the specific and individual needs of an athlete. For example, in a first situation where flexible (low stiffness) and cushioned shoes are preferred, the athlete can select from at least two insoles one that has low stiffness and / or does not contain any additional stiffening means.

[0062] A second aspect of the present invention relates to shoes, preferably sports shoes. These shoes include a sole element according to one of the embodiments described above.

[0063] Illustrative embodiments of the present invention will be described below with reference to the drawings. [Brief explanation of the drawing]

[0064] [Figure 1] Figure 1A shows a Strobel board that includes a rigid plate positioned inside a closed pocket, with the pocket closed with hook-and-loop fasteners. Figure 1B shows a Strobel board that includes a rigid plate, with a portion of the rigid plate positioned outside an open pocket. [Figure 2] This figure shows a Strobel board that includes a rigidifying plate, the rigidifying plate being attached to the Strobel board by sewing. [Figure 3] This figure shows a Strobel board that includes a rigid plate, the rigid plate being attached to the Strobel board by adhesive. [Figure 4-1] Figure 4A shows a Strobel board in which at least a portion of one or more means for stiffening is injected into the forefoot portion of the Strobel board. Figure 4B shows a Strobel board in which at least a portion of one or more means for stiffening is injected into the Strobel board so that the means for stiffening extends from the forefoot portion to the midfoot portion of the Strobel board. [Figure 4-2] Figure 4C shows a Strobel board in which at least a portion of one or more means for stiffening is injected into the Strobel board, so that the central portion of the means for stiffening is located in the midfoot portion of the Strobel board. [Figure 5-1] Figure 5A is a schematic diagram of a Strobel board including a rigidifying plate placed inside the pocket of the Strobel board. [Figure 5-2]Figure 5B shows the insertion of a stiffening plate into a pocket of a Strobel board and is a schematic diagram of a Strobel board. Figure 5C is a schematic diagram illustrating an exemplary embodiment of a stiffening plate configured to be received into a pocket of a Strobel board. [Modes for carrying out the invention]

[0065] Only a few possible embodiments of the present invention are described in detail below. It should be understood that these exemplary embodiments can be modified in multiple ways and combined with each other whenever compatible, and that certain features can be omitted insofar as they appear non-essential.

[0066] Figures 1A and 1B show exemplary embodiments of a sole element 100 configured to be placed in a shoe. The sole element 100 includes a stiffening plate 110, a Strobel board 120, and a pocket 130. The Strobel board 110 includes a nonwoven material. The pocket 130 is located in region 105a of the sole element 100, which is configured to receive the forefoot. In some embodiments, the pocket 130 may be located in region 105a of the sole element 100 so as to extend at least partially into region 105b of the sole element 100, which is configured to receive the midfoot. Furthermore, the pocket 130 may be located in region 105a of the sole element 100 so as to extend at least partially into region 105b and region 105c of the sole element 100, which is configured to receive the rearfoot. The pocket 130 is attached to the Strobel board 120 at a side of the Strobel board 120 configured to face the inside of the shoe. In particular, a portion of the boundary and / or external area of ​​pocket 130 is attached to the Strobel board 120.

[0067] The size and shape of the boundary and / or external area of ​​the pocket 130 substantially conform to the size and shape of the Strobel board 120 in the forefoot area 105 of the sole element. The pocket 130 includes an opening 132. The width of the opening 132 substantially corresponds to the width of the Strobel board 120 in the area associated with the opening 132.

[0068] As shown in Figure 1B, the pocket 130 is configured to receive the stiffening plate 110. In particular, the size and shape of the pocket 130 are such that the cavity formed by the pocket 130 can receive the stiffening element 110. For example, the size and shape of the pocket 130 substantially corresponds to the size and shape of the stiffening plate 110. Specifically, the stiffening plate 110 includes two recesses 115a, 115b, for example, a first recess 115a in the rear portion of the stiffening plate 110 and a second recess 115b in the front portion of the stiffening plate. In particular, the pocket 130 is configured such that the cavity formed by the pocket substantially corresponds to the recess 115b of the stiffening plate 110. For example, a portion of the pocket 130 corresponding to the recess 115b is attached to the Strobel board 120. In particular, the portion of the pocket 130 corresponding to the recess 115b is attached to the Strobel board 115b such that it is excluded from the cavity formed by the pocket 130.

[0069] The pocket 130 further includes a hook-and-loop fastener 134. Figure 1A shows the hook-and-loop fastener 134 in a closed configuration, and Figure 1B shows the hook-and-loop fastener 134 in an open configuration. The hook-and-loop fastener 134 is configured to open and / or close at least a portion of the pocket 130. In particular, the hook-and-loop fastener is configured to close at least a portion of the pocket 130 to prevent the stiffening plate 110 from being (unintentionally) removed from the pocket. Furthermore, the hook-and-loop fastener 134 is configured to open at least a portion of the pocket 130 to allow the (intentional) removal and / or replacement of the stiffening plate 110. Specifically, the first recess 115a in the rear region of the stiffening plate 110 and the hook-and-loop fastener 134 are configured so that the hook-and-loop fastener 134 can be closed through the recess 115b. In particular, the first recess 115a and hook-and-loop fastener 134 in the rear region of the rigid plate 110 are configured such that the hook side (loop side) of the hook-and-loop fastener 134 contacts the opposing loop side (hook side) of the hook-and-loop fastener 134 through the recess 115b.

[0070] Figure 2 shows an exemplary embodiment of the sole element 200, which includes a stiffening plate 210 and a Strobel board 220. The Strobel board 220 includes a nonwoven fabric material. The stiffening plate 210 is positioned in a portion 205a of the sole element 200 configured to receive the forefoot. In some embodiments, the stiffening plate 210 may be positioned in region 205a of the sole element 200 so as to extend at least partially into region 205b of the sole element 200 configured to receive the midfoot. Furthermore, the stiffening plate 210 may be positioned in region 205a of the sole element 200 so as to extend at least partially into region 205b and region 205c of the sole element 200 configured to receive the rearfoot.

[0071] The stiffening element 210 includes two recesses 215a, 215b, for example, a first recess 215a in the rear portion of the stiffening plate 210 and a second recess 215b in the front portion of the stiffening plate 210. The stiffening plate 210 is attached to the Strobel board 220. In particular, the stiffening plate 210 is attached to the Strobel board 220 by stitching 230. Specifically, the stiffening plate 210 is attached to the Strobel board 220 by stitching 230 substantially along the entire boundary and / or external area of ​​the stiffening plate 210. In some embodiments, the stiffening plate 210 may be attached to the Strobel board 220 by stitching 230 along the boundary and / or external area of ​​the stiffening plate. For example, the stiffening plate 210 may be attached to the Strobel board 220 by stitching 230 only along the lateral boundary and / or inner boundary of the stiffening plate 210, and for example, the stiffening plate 210 does not need to be stitched to the Strobel board 220 along the boundary and / or portion of the outer area of ​​the stiffening plate 210 related to the recess 215a and / or recess 215b.

[0072] Figure 3 shows an exemplary embodiment of the sole element 300, which includes a stiffening plate 310 and a Strobel board 320. The Strobel board 320 includes a nonwoven fabric material. The stiffening plate 310 is positioned in portion 305a of the sole element 300, which is configured to receive the forefoot. In some embodiments, the stiffening plate 310 may be positioned in region 305a of the sole element 300 so as to extend at least partially into region 305b of the sole element 300, which is configured to receive the midfoot. Furthermore, the stiffening plate 310 may be positioned in region 305a of the sole element 300 so as to extend at least partially into region 305b and region 305c of the sole element 300, which is configured to receive the rearfoot. The stiffening element 310 includes two recesses 315a and 315b, for example, a first recess 315a in the rear portion of the stiffening plate 310 and a second recess 315b in the front portion of the stiffening plate 310. The stiffening plate 310 is attached to the Strobel board 320. In particular, the stiffening plate 310 is attached to the Strobel board 320 by bonding the stiffening plate 310 to the Strobel board 320.

[0073] Figure 4A shows an exemplary embodiment of the sole element 400, which includes means 410 for stiffening at least a portion of the sole element 400. The means 410 for stiffening at least a portion of the sole element is located in a region 405a configured to receive the forefoot. The sole element 400 further includes a Strobel board 420. The Strobel board 420 may include a nonwoven material. In some embodiments, the Strobel board may include a knitted and / or woven material. One or more means 410 for stiffening are injected into the Strobel board 420. For example, the means 410 for stiffening may be injected into the Strobel board 420 so as to dissolve at least a portion of the Strobel board 420, e.g., into the Strobel board material. In particular, the means 410 for stiffening may include a polyamide and / or thermoplastic elastomer, e.g., a polyether block amide.

[0074] The shape of the stiffening means 410 substantially conforms to the shape of the Strobel board 420. In particular, the shape of the stiffening means 410 in region 405a substantially conforms to the shape of the Strobel board 420 in region 405a. Specifically, at least a portion of the boundary and / or external region of the stiffening means 410 conforms to the boundary and / or external region of the Strobel board 420. Generally, the stiffening means 410 may be configured and / or positioned such that the boundary of the stiffening means 410 is at a distance from the boundary of the Strobel board 420. For example, the distance between the stiffening means 410 and the Strobel board 420 may include a distance δ. Configuring and / or positioning the stiffening means 410 such that its boundary is at a distance from the Strobel board 420 may include the distance between the boundary of the stiffening means 410 and the Strobel board 420 being substantially uniform along the boundary of the stiffening means 410 and / or along the boundary of the Strobel board 420. For example, the uniform distance may include a distance δ. In some embodiments, the stiffening means 410 may be configured to substantially correspond to a scaling change of a portion of the Strobel board 420. For example, the stiffening means 410 may be configured to correspond to a scaling change of a portion of the Strobel board 420 in the forefoot region 405a. In particular, the stiffening means 410 may be scaled such that its boundary is at a distance δ from the boundary of the Strobel board 420. A (complete) scaling change of the Strobel board 420 is indicated by a dotted line 402. In particular, the distance between the boundary of the scaled Strobel board 402 (dotted line) and the (unscaled) Strobel board 420 is δ.

[0075] Figure 4B shows a further exemplary embodiment of the sole element. The sole element 100 includes a Strobel board 420 and means 410 for stiffening at least a portion of the Strobel board 420. In particular, one or more means 410 for stiffening are attached to and / or injected into the forefoot portion 405a of the Strobel board 420, and attached to and / or injected into the midfoot portion 405b of the Strobel board 420. Furthermore, one or more means for stiffening are attached to and / or injected into the rearfoot / heel portion 405c of the Strobel board 420. In particular, one or more means 410 for stiffening are attached to and / or injected into the Strobel board 420 so as to extend from the forefoot portion 405a to the rearfoot / heel portion 405c of the Strobel board 420.

[0076] Figure 4C shows a further exemplary embodiment of the sole element. The sole element 100 includes a Strobel board 420 and means 410 for stiffening at least a portion of the Strobel board 420. One or more stiffening means 410 are attached to and / or injected into the Strobel board 420 such that the central portion 414 of the stiffening means 410 is located in the midfoot portion 405b of the Strobel board 420. Specifically, one or more stiffening means 410 extend toward the forefoot portion 405a of the Strobel board 420. Furthermore, one or more stiffening means 410 extend toward the rearfoot / heel portion 405c of the Strobel board 420. In particular, two toe portions 418a, 418b extend from the central portion 414 of the stiffening means 410 toward the forefoot portion 405a of the Strobel board. Similarly, the two toe sections 418c and 418d extend from the central section 414 of the means for rigidification 410 toward the rear foot / heel section 405c of the Strobel board 420. Generally, the toe sections 418a, 418b, 418c, and 418d extend from the central section 414 along a (virtual) boundary 402. For example, the (virtual) boundary may include a scaled-down boundary of the Strobel board 410.

[0077] Figure 5A shows an exemplary embodiment of a sole element. The sole element includes a Strobel board 520 and a pocket 530 positioned in the Strobel board 520. For example, the pocket 530 is provided inside the Strobel board 520, and for example, the Strobel board 520 and the pocket 530 may be a single piece. Additionally or alternatively, the pocket 530 may be attached to the Strobel board 520, for example, the pocket 530 may be sewn to the Strobel board 520 and / or glued. The pocket is positioned on the side of the Strobel board 520 configured to face the insole and / or foot. The pocket 530 is configured to receive a stiffening element 510. In the situation shown in Figure 5A, the stiffening element 510 is positioned inside the pocket 530, and for example, the stiffening element 510 is inserted into the pocket 530. In particular, the pocket 530 is positioned in the forefoot portion 505a of the Strobel board 520, for example, in the portion of the Strobel board 520 configured to receive the forefoot. The size and / or shape of the pocket 530 is based on the size and / or shape of the stiffening element 510. Specifically, the pocket 530 includes a toe portion 534 that extends from and / or appears from the base of the pocket 530. For example, the toe portion 534 of the pocket 530 may extend from and / or appear from the base of the pocket so as to extend toward the toe area of ​​the Strobel board 520. In particular, the size and / or shape of the toe portion 534 is adjusted so that the toe portion 534 can receive the toe portion 512 of the stiffening element 510 (see Figure 5B or Figure 5C).

[0078] Figure 5B shows the situation where the stiffening element 510 has not yet been placed in the pocket 530 of the Strobel board 520. Specifically, the stiffening element 510 can be inserted into the pocket 530 of the Strobel board 520 through the opening 532 of the pocket 530. For example, the stiffening element 510 is directed

[0079]

number

[0080] Figure 5C shows an exemplary stiffening element 510. The stiffening element 510 includes finger portions 512 extending from and / or appearing from the base of the stiffening element 510. The base of the stiffening element 510 includes a plurality of openings 514a, 514b, 514c, 514d and a plurality of ribs 516a, 516b, 516c. In particular, the openings 514a, 514b, 514c, 514d are separated by the ribs 516a, 516b, 516c. For example, opening 514b is separated from opening 514c by rib 516b. The openings 514a, 514b, 514c, 514d have an elliptical shape. Specifically, the semi-major axes of the elliptical shapes of the openings 514a, 514b, 514c, 514d are substantially parallel to the extensional direction of the Strobel board 520. In some embodiments, the openings 514a, 514b, 514c, and 514d of the rigidifying element 510 may have different shapes and / or sizes. For example, opening 514a may have a first shape and / or size, and opening 514b may have a second shape and / or size.

[0081] Furthermore, this application discloses the following embodiments. [1] A sole element (100) configured to be placed in a shoe, preferably a sports shoe, The sole element (100) includes means (110) for stiffening at least a portion (105a) of the sole element (100), At least a portion (105a) of the sole element (100) is located in at least one region configured to receive the forefoot, The sole element (100) is configured to be placed in the shoe when the shoe is worn. The sole element (100) is a strobel board (120) and / or insole. [2] One or more means (110) for stiffening at least a portion of the sole element, To stiffen at least a portion (105a) of the shoe configured to receive the forefoot, and / or It is configured to stiffen at least a portion (105b) of the shoe that is configured to receive the midfoot, Preferably, one or more means for stiffening are arranged to extend from a portion of the shoe configured to receive the forefoot (105a) toward a portion of the shoe configured to receive the midfoot (105b) of the sole element (100) as described in [1]. [3] A sole element (100) according to [2], which includes stiffening at least a portion of the shoe configured to receive the forefoot and / or midfoot, thereby increasing the propulsive force associated with the shoe and / or reducing stud pressure. [4] The sole element (100) according to any one of [1] to [3], wherein at least a portion (110) of the sole element (100) is replaceable, and preferably, at least a portion of the means for rigidification (110) is arranged in the shoe to be replaceable. [5] At least a portion (110) of a replaceable sole element (100) is configured to be replaced and / or removed through an opening in the shoe, preferably an ankle opening in the shoe, as described in [4]. [6] One or more means for stiffening (110) include a pocket (130) configured to receive a stiffening element (110), preferably the pocket (130) configured to receive the stiffening element (110) through an opening (132) as the sole element (100) of any one of [1] to [5]. [7] The pocket (130) is located inside the Strobel board (120) and / or The pocket (130) is at least partially attached to the Strobel board (120), preferably the pocket (130) is attached to the Strobel board (120) by sewing and / or knitting. [6] The sole element (100) described therein. [8] A pocket (130) is located on the side of a Strobel board (120) configured to face the inside of the shoe, and is part of the sole element (100) as described in [6] or [7]. [9] The sole element (100) according to any one of [6] to [8], wherein the pocket (130) includes means (134) for securing the rigidity element (110), preferably the means (134) for securing includes hook and loop fasteners.

[10] A means for stiffening (110) is a sole element (100) according to any one of [1] to [9], which includes a stiffening plate.

[11] One or more means for stiffening (110) is a sole element (100) according to any one of [1] to

[10] , comprising a stiffening element (110) that is at least partially attached to a Strobel board.

[12] The stiffening elements (210, 310) are attached to the Strobel board by adhesive and / or stitching (230) to the sole elements (200, 300) as described in

[11] .

[13] At least a portion of the means for rigidifying (410) is injected into the Strobel board (420) of the sole element (400) according to any one of [1] to

[12] .

[14] Strobel board (120) is a sole element (100) described in any one of [1] to

[13] , comprising a nonwoven material.

[15] A shoe sole element according to any one of [1] to

[14] , wherein one or more means for stiffening are attached at least partially to the insole of the shoe, preferably one or more means for stiffening are attached to the side of the insole configured to face the strobel and / or the insole of the shoe. A shoe, preferably a sports shoe, comprising a sole element (100) described in any one of

[16] [1] to

[15] .

Claims

1. A sole element configured to be placed in a shoe, preferably a sports shoe, The sole element is provided with means for rigidifying at least a portion of the sole element, At least one portion of the sole element is located in a region configured to receive the forefoot, The sole element is configured to be positioned in the shoe when the shoe is worn. The sole element is a strobel board and / or insole.

2. The one or more means for rigidifying at least a portion of the sole element are: To stiffen at least a portion of the shoe configured to receive the forefoot, and / or It is configured to stiffen at least a portion of the shoe that is configured to receive the midfoot, Preferably, the sole element according to claim 1, wherein one or more of the means for rigidifying are arranged to extend from the portion of the shoe configured to receive the forefoot toward the portion of the shoe configured to receive the midfoot.

3. The sole element according to claim 2, wherein stiffening at least a portion of the shoe configured to receive the forefoot and / or midfoot includes increasing propulsion and / or reducing stud pressure associated with the shoe.

4. The sole element according to any one of claims 1 to 3, wherein at least a portion of the sole element is replaceable, and preferably, at least a portion of the means for rigidification is replaced, and is arranged in the shoe.

5. The sole element according to claim 4, wherein at least a portion of the replaceable sole element is configured to be replaced and / or removed through an opening in the shoe, preferably an ankle opening in the shoe.

6. The sole element according to any one of claims 1 to 3, wherein one or more means for stiffening include a pocket configured to receive a stiffening element, preferably the pocket configured to receive the stiffening element through an opening.

7. The aforementioned pocket is provided inside the Strobel board, and / or The sole element according to claim 6, wherein the pocket is at least partially attached to the Strobel board, preferably the pocket is attached to the Strobel board by sewing and / or knitting.

8. The sole element according to claim 6, wherein the pocket is located on the side of the Strobel board configured to face the inside of the shoe.

9. The sole element according to claim 6, wherein the pocket includes means for fixing the rigidifying element, and preferably the means for fixing includes hook-and-loop fasteners.

10. The shoe sole element according to any one of claims 1 to 3, wherein the means for increasing rigidity includes a rigidifying plate.

11. The shoe sole element according to any one of claims 1 to 3, wherein the means for rigidifying includes a rigidifying element that is at least partially attached to the Strobel board.

12. The shoe sole element according to claim 11, wherein the stiffening element is attached to the Strobel board by adhesive and / or sewing.

13. The sole element according to any one of claims 1 to 3, wherein at least a portion of the means for rigidification is injected into the Strobel board.

14. The sole element according to any one of claims 1 to 3, wherein the Strobel board comprises a nonwoven fabric material.

15. The shoe sole element according to any one of claims 1 to 3, wherein one or more of the means for rigidification are attached at least partially to the insole of the shoe, and preferably, one or more of the means for rigidification are attached to the side of the insole configured to face the strobel and / or the insole of the shoe.

16. A shoe, preferably a sports shoe, comprising the sole element described in any one of claims 1 to 3.

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