Article of footwear with flexible heel cup

Abstract

A footwear article comprising a shaft with an entry area and an entry opening which is at least partially surrounded by a shaft edge, a sole which is connected to the shaft, wherein the shaft comprises a heel section with a heel cap for receiving a heel of a foot, the heel cap comprising a flexible section and a rigid section, the flexible section being movable back and forth between a normal position and an entry position relative to the rigid section in the sagittal direction, in particular pivotable, the flexible section and the rigid section overlap each other in the normal position of the flexible section in the vertical direction (z-direction), and wherein the flexible section and the rigid section are decoupled from each other, in particular separated from each other, in the overlap area by a cut in the heel cap.

Description

[0001] The invention relates to a heel counter of a footwear article, in particular a shoe, comprising a flexible section and a rigid section. In particular, the invention relates to a footwear article with a heel counter having a flexible section and a rigid section, which facilitates easier entry into the footwear article for the wearer. The flexible section can preferably be moved back and forth between a normal position and an entry position, wherein an entry opening of the footwear article in the entry position is enlarged in the sagittal direction compared to the entry opening in the normal position of the flexible section. In particular, the invention relates to a footwear article which facilitates the wearer's putting on of the footwear article without the need to use one or both hands or other aids, such as a shoehorn, when entering the footwear article.

[0002] When putting on footwear, especially tight-fitting shoes, it is often necessary for the wearer to use manual assistance to ensure proper application. Frequently, one or both hands are used to hold the upper of the footwear and widen the opening. A typical challenge when putting on footwear can be bending down to grasp the footwear and / or enlarge the opening. This can be particularly difficult for elderly and / or physically impaired individuals.

[0003] If the wearer does not use their hand(s) or an aid and attempts to put on the footwear without manually widening the opening, this can lead to creasing or folding of the heel area, especially if the wearer puts pressure on the heel area with their foot while putting on the footwear. In the long term, this can lead to damage and / or plastic deformation of the footwear in the heel area, which can render the footwear unusable and / or significantly reduce wearing comfort.

[0004] It is therefore an object of the invention to make it easier for the wearer to put on the footwear item, in particular without the use of any aids, and to protect it from unnecessary damage.

[0005] The problem is solved by the subject matter of claim 1.

[0006] The invention relates to a heel counter, in particular a footwear article with a heel counter. The footwear article comprises an upper with an entry area and an opening that is at least partially surrounded by an upper edge. The footwear article can, for example, be a shoe. Preferably, the footwear article is a shoe with a low upper that extends to just below the wearer's ankle. In particular, it can be a sneaker, a low shoe, a sports shoe, a sporty-inspired casual shoe, and / or a slip-on.

[0007] Alternatively, the footwear item could also be a shoe with a raised shaft that extends vertically to or above the wearer's ankle. Specifically, the shoe could also be an ankle boot, a hiking boot, a work and / or safety shoe, an ankle boot, a boot, or a sports shoe or sneaker with a raised shaft.

[0008] When the application refers to a "normal orientation" of the footwear article, this means that the footwear article stands upright on a horizontal surface, such that the sole of the footwear article is substantially parallel to the surface. "Substantially parallel to the surface" is understood to mean that the transverse planes of the footwear article run parallel to the surface, disregarding any curvature of the sole. The directional terms used refer to the footwear article itself and are largely independent of its orientation in space. Regardless, unless otherwise stated, the application assumes that the footwear article has its normal orientation and stands on a horizontal surface.

[0009] When a vertical axis is mentioned in the application, it refers to the axis that is perpendicular to the sole of the footwear article or perpendicular to a tangent plane of the sole, in particular a transverse plane. The vertical axis runs from bottom to top. When the footwear article is oriented normally, the vertical axis is perpendicular to the horizontal surface. The vertical direction is understood to be the direction that points in the direction of the direction vector of the vertical axis. With respect to the footwear article, the vertical direction points from the sole towards the top of the upper. In particular, the height of the footwear article can be measured in the vertical direction. In a Cartesian coordinate system, the vertical direction corresponds to the z-axis, where the x-axis and the y-axis define a transverse plane that is parallel to the horizontal surface when the footwear article is oriented normally.

[0010] Accordingly, the transverse axis is understood to be the axis that runs from right to left, or from one lateral side of the footwear item to the opposite lateral side. The transverse axis runs transversely through the footwear item and is perpendicular to the vertical axis. The transverse direction is understood to be the direction that points in the direction of the transverse axis's direction vector. In particular, the width of the footwear item can be measured in the transverse direction. In the Cartesian coordinate system, the transverse axis corresponds to the y-axis.

[0011] Accordingly, the sagittal axis is understood to be the x-axis of the Cartesian coordinate system. The sagittal axis runs from the back of the footwear item, i.e., from the heel section, to the front, specifically to the toe section. The sagittal axis is perpendicular to the vertical and transverse axes. The sagittal direction is understood to be the direction that points in the direction of the sagittal axis's direction vector. In particular, the length of the footwear item can be measured in the sagittal direction.

[0012] The term "frontal plane" or "frontal planes" refers to all planes that are parallel to the front of the footwear item, particularly parallel to the toe area. The frontal planes run from the top to the bottom of the footwear item, dividing it into a front and a back section. In the Cartesian coordinate system, the frontal plane is defined by the direction vectors of the vertical axis (z-axis) and the transverse axis (y-axis).

[0013] Accordingly, the term "transverse plane(s)" refers to all planes that run transversely through the footwear article. When the footwear article is oriented normally, the transverse planes run horizontally and divide the article into an upper and a lower part. For example, a flat sole can form a transverse plane of the footwear article. The transverse plane is spanned by the direction vectors of the transverse axis (y-axis) and the sagittal axis (x-axis).

[0014] Accordingly, the sagittal plane(s) are understood to be all planes that are aligned along the sagittal direction. In the case of the footwear item, the sagittal planes divide it into a left and a right half. In the Cartesian coordinate system, the sagittal plane is spanned by the direction vectors of the sagittal axis (x-axis) and the vertical axis (z-axis).

[0015] The upper part of a footwear item is defined as the part that covers and protects the wearer's foot. The upper may be closed, thus providing complete protection. Alternatively, it may be partially open, for example, with cutouts. Specifically, the upper is understood to be the part of the footwear item that is connected to a sole and at least partially covers and protects the wearer's foot.

[0016] The upper is connected to the sole of the footwear and extends vertically upwards, reaching up to or above the wearer's ankle, depending on the model. Preferably, the footwear according to the invention is a low upper extending vertically to below the ankle of the wearer's foot. Alternatively, the upper can be a high upper extending vertically to or above the ankle of the wearer's foot. The upper can comprise a toe cap, a quarter, a heel cap, and a top edge.

[0017] The upper can be single-layered or multi-layered. In particular, the upper, or parts thereof, can comprise an externally visible top material and an internally visible lining material. Further layers can be formed between the top material and the lining material. The heel counter is preferably not visible from the outside, being formed between the top material and the lining material in the heel section of the upper. In particular, the heel counter can be partially or completely covered by the top material and / or the lining material.

[0018] The term "shaft top" refers to the upper edge of the shoe. It represents the transition between the shoe and the wearer's leg. The shaft top forms the uppermost edge of the shoe, allowing the foot to step in and out. It may be reinforced, padded, or hemmed to enhance comfort and protect the shoe from wear and tear. The term "shaft top" specifically excludes the linear edge of the shoe's top edge, which is considered part of the shaft top. The height of the shaft top can vary depending on any padding and / or the design of the shoe.

[0019] The footwear item comprises a sole that is attached to the upper. The sole can be single-layered or multi-layered. Specifically, the sole can include an outsole, midsole, insole, and / or insole. Depending on the type of footwear item and its intended use, the materials and number of layers can vary to optimally support the wearer's foot and maximize comfort.

[0020] The upper of the footwear article comprises a heel section with a heel counter for receiving the heel of the foot. The heel section, in particular the heel counter, may include a convex section designed to at least partially surround the heel laterally and in the sagittal direction at the rear. In particular, the convex section of the heel section or heel counter may be cup-shaped. The heel section or heel counter is preferably adapted to the anatomy of a foot.

[0021] When a convex section is mentioned, this means that the convex section, relative to the footwear article, curves outwards, creating a depression that opens towards the interior of the footwear article and into which the heel can be placed. Specifically, the convex section is convex in a sagittal section through a transversely medial area of ​​the heel counter in the coordinate system formed by the vertical axis and the sagittal axis.

[0022] The footwear article may include a padded section in the heel area. This padded section can provide the wearer, and in particular the wearer's heel, with additional cushioning and comfort. The padded section can ergonomically enclose and support the heel. The padded section may be part of, or form, the top edge of the upper. The padded section may be located between the upper and / or the lining material. Alternatively, the upper or the lining material may encompass the padded section. Preferably, the padded section is located on the inside of the footwear article.

[0023] In particular, the padded section can be positioned further inward than the heel counter. The padded section can include a soft textile lining to improve the comfort of the footwear. The padded section can be made of foam, a textile lining such as polyester, nylon, or neoprene, or leather. The padded section can also feature a lightweight, breathable textile covering, such as a mesh fabric.

[0024] The padded section can partially or completely overlap the back cap. The padded section is preferably adapted to the contour of the back cap and can follow its contour. In particular, the padded section can overlap the lateral and / or vertical edges of the back cap. Preferably, the padded section overlaps the lateral edges and the vertical upper edge of the back cap.

[0025] The padded section can extend vertically from the top edge of the boot towards the sole. Preferably, the padded section, in particular the transversely medial portion of the padded section, extends vertically from the top edge of the boot to at least half of the transversely medial portion of the heel counter. In particular, the padded section can extend vertically from the top edge of the boot to more than half of the medial portion of the heel counter. The padded section can overlap at least half, and in particular two-thirds, of the medial portion of the heel counter in the vertical direction.

[0026] The padded section can extend vertically to the sole of the footwear. Preferably, the medial area of ​​the padded section does not extend vertically to the sole. In particular, the padded section can extend continuously further in the mediolateral direction than in the medial area. Specifically, the padded section can extend continuously further in the mediolateral direction on one or both sides than in the medial area. In particular, the lateral areas of the padded section can extend to the sole. In this context, mediolateral means from the medial area of ​​the padded section in the transverse direction towards one or more lateral edges of the padded section.

[0027] The lateral edges of the heel counter refer specifically to the side edges of the heel counter, which, depending on the design of the heel counter, run laterally to the wearer's heel. These lateral edges can run in the sagittal, vertical, and / or transverse direction.

[0028] Preferably, the padded section extends beyond the heel counter at its lateral and / or vertical edges. In particular, the padded section can at least partially cover the heel counter, thus preferably supporting and / or protecting the wearer's heel. Preferably, the padded section completely covers the heel counter in the mediolateral direction, thereby stabilizing the wearer's heel area and providing optimal protection against friction and pressure points, for example, from the heel counter. The padded section can reduce stress on the heel, thereby reducing blisters and friction, especially during extended wear or athletic activity.

[0029] The heel counter can comprise a flexible section and a rigid section. The flexible section can be movable, in particular pivotable, between a normal position and an entry position. Specifically, the flexible section can be movable, in particular pivotable, relative to the rigid section between the normal position and the entry position. The shape and / or position of the rigid section preferably remains unchanged, regardless of the position of the flexible section. In particular, the rigid section is not affected by the movement of the flexible section from the normal position to the entry position or vice versa. Specifically, the shape and / or position of the rigid section relative to the footwear article remains unchanged, regardless of the position of the flexible section.

[0030] In the entry position of the flexible section, the sagittal opening of the shaft can be larger than in the normal position of the flexible section, making it easier for the wearer's foot to, for example, enter the footwear. Specifically, the sagittal opening can be enlarged by moving the flexible section from the normal position to the entry position. Conversely, moving the flexible section from the entry position back to the normal position reduces the sagittal opening.

[0031] The flexible section can be moved from its normal position to the entry position, particularly by the wearer applying pressure to it with their foot when entering the footwear. Specifically, the pressure exerted by the foot on the flexible section when entering the footwear causes it to move, especially pivot, from its normal position to the entry position. Subsequently, once the wearer's foot is inside the footwear, the flexible section can return from the entry position to its normal position. In particular, under the weight of the wearer's foot, the flexible section is capable of moving, especially pivoting, from its normal position to the entry position.

[0032] The flexible section and the rigid section overlap each other in a vertical overlap area. The flexible section and the rigid section overlap each other in the normal position of the flexible section in the vertical direction. Preferably, the flexible section and the rigid section overlap each other in the entry position of the flexible section in the vertical direction.

[0033] Vertical overlap means that the flexible and rigid sections partially or completely intersect at the height of the footwear item. Specifically, in the overlapping area, the flexible and rigid sections occupy the same vertical position. This means that, in a Cartesian coordinate system where the vertical axis is the z-axis, the rigid and flexible sections share at least some points with the same z-coordinate.

[0034] The flexible and rigid sections can overlap in the sagittal direction at the flexible section's normal position. Sagittal overlap means that the flexible and rigid sections partially or completely intersect along the length of the footwear article. Specifically, in the overlap area, the flexible and rigid sections occupy the same longitudinal position in the sagittal direction. This means that, in a Cartesian coordinate system where the sagittal axis is the x-axis, the rigid and flexible sections share at least some points with the same x-coordinate.

[0035] In addition to or as an alternative to an overlap in the sagittal direction, the flexible and rigid sections can overlap in the transverse direction at the normal position of the flexible section. Transverse overlap means that the flexible and rigid sections partially or completely intersect across the width of the footwear article. Specifically, in the overlap area, the flexible and rigid sections occupy the same position across the width. This means that, in a Cartesian coordinate system where the transverse axis is the y-axis, the rigid and flexible sections have at least some points with the same y-coordinate.

[0036] The flexible section and the rigid section are preferably decoupled from each other in the overlap area by a cut in the back cap. In particular, the flexible section and the rigid section are separated from each other in the overlap area by the cut.

[0037] In particular, the flexible and rigid sections can overlap mediolaterally in the area of ​​the incision when the flexible section is in its normal position. Preferably, the rigid section completely overlaps the flexible section mediolaterally when the flexible section is in its normal position. The mediolateral overlap between the flexible and rigid sections can change, and in particular decrease, when the flexible section is moved from its normal position to its entry position.

[0038] Preferably, the rigid section and the flexible section overlap in the normal position of the flexible section in both the vertical direction and in the sagittal and transverse directions.

[0039] The incision preferably penetrates the material of the back cap completely, so that no material is present in the area of ​​the incision. The incision can be formed by removing or omitting material during the manufacture of the back cap. The incision can be formed with the back cap during the initial forming process or created subsequently. In particular, the term "incision" should not be understood restrictively as meaning cut into the back cap. Specifically, the incision can be formed with the back cap during an initial forming process. For example, the incision can be formed with the back cap during a casting process, whereby no material is introduced in the area of ​​the incision. Alternatively, the incision can be created subsequently in the back cap. For example, the incision can be created in the back cap by a separation process, in particular a thermal or mechanical separation process.

[0040] The incision can be a recess or notch that is open to its surroundings. "Open to its surroundings" means, in particular, that the incision is a recess that is not enclosed by a closed contour. Specifically, the incision is open towards a lateral edge of the back cap. In particular, the incision represents a change or interruption in the continuity of the lateral edge of the back cap.

[0041] Preferably, the incision extends vertically and lateromedially. In particular, the incision can extend obliquely downwards from the lateral edge of the posterior cap towards the medial region of the posterior cap. Lateromedial means from the lateral edge of the posterior cap towards a medial region of the posterior cap. Due to the curvature of the posterior cap, the lateromedial direction can have a component in both the transverse and sagittal directions.

[0042] The vertically upper edge of the cut, in the normal position of the flexible section, can form a cut angle between 0° and 90° in a lateral side view of the rear cap with the vertical axis. Preferably, the cut angle is greater than 0°, particularly greater than 20°. The cut angle can be less than 90°, particularly less than 50°. Preferably, the cut angle is 30° with a tolerance of 10°.

[0043] In the entry position of the flexible section, the upper vertical edge of the cut can form a cut angle with the vertical axis when viewed laterally from the rear cap. This angle is smaller than the cut angle in the normal position. Specifically, the cut angle in the entry position can be between 5° and 25° smaller than the cut angle in the normal position. This change in the entry angle corresponds to the angle at which the flexible section pivots from the normal position to the entry position.

[0044] Preferably, the movement, in particular the pivoting, of the flexible section of the rear cap is restricted. In particular, the movement of the flexible section is restricted to such an extent that the upper edge of the cutout in the entry position forms an angle greater than 0° with the vertical axis. In particular, the movement of the flexible section is restricted to such an extent that the upper edge, in the entry position or during the movement into the entry position, never runs parallel to the vertical axis.

[0045] The movement of the flexible indentation can be limited, in particular, by the upper material and / or the lining material of the boot. The upper material and / or the lining material of the boot can be elastically stretchable, either wholly or in sections, to allow and preferably simultaneously limit the movement of the flexible section from the normal position to the entry position. Alternatively, the upper material and / or the lining material of the boot can be inelastic.

[0046] The upper may include a gusset. The gusset may be elastically stretchable to allow, and preferably restrict, the movement of the flexible section from the normal position to the entry position. The upper may include both an elastically stretchable gusset and an elastic upper and / or lining material. If the upper and / or lining material of the upper is inelastic, the upper preferably includes an elastically stretchable gusset that allows, and preferably simultaneously restricts, the movement of the flexible section from the normal position to the entry position.

[0047] The upper material, lining material, and / or gusset can preferably stretch in the sagittal direction when the wearer puts on the footwear to allow movement of the flexible section from its normal position to the entry position. Preferably, the upper material, lining material, and / or gusset are only stretchable to the extent that the flexible opening can only pivot by 5° to 25°.

[0048] The incision can have various shapes. For example, it can be narrow, wide, straight, or curved. The incision can have a constant or varying width in the normal position of the flexible section. For example, the incision can taper or widen towards the lateral edge of the hind cap and / or towards the end furthest from the lateral edge of the hind cap.

[0049] Preferably, the incision in the normal position of the flexible section is a narrow slit in the back cap, which widens when the flexible section is in the entry position. The incision can be straight or curved. If, for example, the incision is formed at least partially within the convex section of the back cap, the incision can also be curved according to the curvature of the convex section. The incision represents, in particular, an interruption or change in the continuity of the back cap material. The depth and width of the incision can vary.

[0050] Depth refers specifically to the distance from the lateral edge of the back cap to the end of the cut furthest from the lateral edge, particularly to the deepest point of the cut. In other words, depth indicates how far the cut extends into the material of the back cap. Width of the cut refers specifically to the distance between the edges of the cut. The cut may, in particular, have an upper edge and a lower edge in the vertical direction. The upper edge is formed by the flexible section, and the lower edge by the rigid section.

[0051] When the term "decoupling" is used in the application, it means that the rigid and flexible sections are separated or isolated from each other in the overlapping area, allowing them to act and / or function independently. Decoupling limits or eliminates the mutual dependence or influence between the rigid and flexible sections, particularly in the overlapping area. This can be demonstrated, in particular, by the fact that the shape and / or position of the rigid section relative to the footwear article remains unchanged, regardless of the position of the flexible section. Specifically, the rigid section does not change its shape or position when the flexible section moves from its normal position to its entry position and vice versa. In the entry position, the flexible section can act as a kind of shoehorn.

[0052] A key advantage of this design is that the footwear retains its original shape when the wearer puts it on, particularly in the lower and lateral areas of the heel. This means the footwear maintains its stability and shape in this area, preventing unwanted deformation. The shape of the footwear remains unchanged, except for the enlargement of the opening in the sagittal direction necessary for entry.

[0053] In particular, the heel section of the footwear retains its shape laterally, providing important support for the wearer's heel and preventing the footwear from being compressed or stretched in this area. This not only makes it easier to insert the foot into the shoe but also has the added benefit of protecting the upper material. The stability of this rigid section also ensures the material remains visually appealing, as it is not affected by unnecessary stretching or creasing.

[0054] In this way, the flexible section makes it easier for the wearer to put the footwear on, as less effort is required to insert the foot. At the same time, the rigid section allows the footwear to maintain its stability and supportive function, which also benefits the upper material of the footwear, ensuring that the footwear remains in good condition and retains its overall aesthetic appearance.

[0055] The mediolateral extension of the rigid section can be greater than the mediolateral extension of the flexible section. In this context, mediolateral means from the transversely medial region of the posterior cap towards the lateral edge of the posterior cap. In particular, the rigid section and / or the flexible section can extend from a first lateral edge to a second lateral edge of the posterior cap located transversely opposite, with the rigid section preferably having a greater extension than the flexible section.

[0056] When a wearer puts on the footwear, so that their foot is enclosed within it, the rigid section preferably extends further mediolaterally around the wearer's foot than the flexible section. In particular, the rigid section can extend laterally and medially around the calcaneus (heel bone), while the flexible section preferably extends medially around the calcaneus and laterally and medially around the Achilles tendon. Specifically, the rigid section and a vertically lower portion of the flexible section can be designed to accommodate the wearer's calcaneus. An upper portion of the flexible section can be designed to accommodate the lower part of the Achilles tendon or the narrowing of the foot above the heel.

[0057] Preferably, the incision is a first incision, wherein the posterior cap includes a second incision. The second incision can, in particular, be designed analogously to the first incision. The first incision can extend lateromedially from the first lateral edge of the posterior cap towards the medial region, and the second incision can extend lateromedially from the second lateral edge of the posterior cap, which is transversely opposite the first lateral edge, towards the medial region.

[0058] The statements made regarding the incision apply to both the first incision and the second incision.

[0059] The first and second incisions can converge lateromedially. The lower part of the flexible section preferably extends from the first incision to the second incision. If the first and second incisions extend obliquely downwards from the first and second lateral edges, respectively, of the posterior cap towards the medial region of the posterior cap, the mediolateral extent of the flexible section decreases downwards in the vertical direction. Preferably, the flexible section has its smallest mediolateral extent between the lowest point of the first incision and the lowest point of the second incision. Preferably, the lowest point of the first incision and the lowest point of the second incision are at the same level in the vertical direction.

[0060] Preferably, the heel counter has a plane of symmetry extending vertically and sagittally. This plane of symmetry preferably intersects the heel counter in its medial region. In particular, the plane of symmetry can intersect the heel counter at a rearmost point in the sagittal direction of the footwear article. The heel counter can preferably be mirror-symmetrical. Specifically, starting from the medial region, the heel counter can be mirror-symmetrical in the mediolateral direction towards the first lateral edge and towards the second lateral edge.

[0061] The heel counter can exhibit a curved cross-sectional surface in the medial region when viewed in a sagittal section. The section plane of the sagittal section extends in both the vertical and sagittal directions of the footwear. In particular, the sagittal section plane can correspond to the plane of symmetry of the heel counter.

[0062] The cut surface can comprise a concave section and / or a convex section. In particular, the cut surface can comprise an upper concave section and / or a lower convex section. The convex lower section can be designed to accommodate the heel of a wearer and, in particular, to at least partially surround the heel in the sagittal direction, both posteriorly and laterally.

[0063] The concave section can be designed to provide a contact surface for the wearer's foot when entering the footwear, allowing the foot to exert sufficient pressure on the flexible section so that the flexible section can move from its normal position into the entry position. In particular, the concave section, with its curvature directed towards the interior of the footwear, can guide the foot when entering the footwear.

[0064] The cut surface has, in particular, a rear edge and an anterior edge in the sagittal direction. Specifically, the rear edge and / or the anterior edge of the cut surface may comprise a concave section and / or a convex section.

[0065] In particular, the sagittal rear edge of the cut surface can comprise a concave upper section and / or a convex lower section. Additionally or alternatively, the sagittal front edge of the cut surface can comprise a concave upper section and / or a convex lower section. Preferably, both the front and rear edges of the cut surface have a concave upper section and a convex lower section, respectively.

[0066] The flexible section preferably extends vertically from the highest point of the cut surface to a vertex of the convex section. In particular, the flexible section can extend vertically over half, and especially over two-thirds, of the back cap. The rigid section preferably extends vertically from the lowest point of the cut surface to the vertex of the convex section. Preferably, the vertex of the convex section and the lowest point of the cut or cuts are at the same height vertically.

[0067] The back cap preferably has a substantially uniform thickness throughout. The term "substantially uniform thickness" is intended to express, in particular, that the thickness of the back cap remains largely constant. There should be no significant fluctuations or differences in thickness, although small, negligible deviations, for example due to surface irregularities, are possible. In particular, the back cap may taper slightly at its edges due to the manufacturing process. Specifically, fluctuations or differences in thickness should not affect the function and / or stability of the back cap.

[0068] For example, the cut surface of the sagittal section may taper through the medial area of ​​the back cap towards the upper and / or lower edge in the vertical direction due to manufacturing processes. In particular, the cut surface may have a manufacturing-related radius in the area of ​​its upper and / or lower edge.

[0069] The term "thickness" refers specifically to the material thickness of the heel counter. The material thickness is determined by the distance between an outer surface of the footwear item and an inner surface of the heel counter, measured perpendicular to each surface.

[0070] In particular, the anterior margin of the sagittal section through the medial region of the posterior cap can be equidistant from the posterior margin of the section along the vertical axis, except for any possible tapering in the region of the vertical margins. The distance between the anterior and posterior margins of the section corresponds to the thickness of the posterior cap in the medial region.

[0071] The back cap preferably has a thickness of more than 1 mm. Preferably, the back cap has a thickness of less than 3 mm. In particular, the back cap can have a thickness of 2 mm with a tolerance of 0.5 mm.

[0072] The flexible section and the rigid section are preferably permanently connected to each other in the medial region of the back cap via a connecting section. In particular, the connecting section between the rigid section and the flexible section can correspond vertically to the lowest edge of the flexible section. Specifically, the connecting section can correspond to the line connecting the lowest vertical point of the first incision and the lowest vertical point of the second incision.

[0073] When the term "inseparable connection" is used to describe the flexible and rigid sections, it means that they cannot be separated non-destructively. Specifically, the flexible and rigid sections are formed together in a single process. Furthermore, the rigid and flexible sections have a seamless transition to each other. In other words, there is no discernible transition between the flexible and rigid sections in the connecting section.

[0074] The back cap preferably has, with the exception of the cut or cuts, a smooth, continuous outer and inner surface. In particular, there is no discernible transition or break between the flexible section and the rigid section in the connection area. Preferably, the back cap, or the back cap material, is divided into a rigid section and a flexible section solely by the cut or cuts.

[0075] In particular, the flexible section and the rigid section can be made of the same material, for example in a primary forming process. Preferably, the rigid section and the flexible section have the same thickness.

[0076] The flexible section is preferably positioned above the rigid section in the medial vertical direction. Specifically, the flexible and rigid sections do not overlap in the medial vertical direction. However, the rigid and flexible sections do overlap in the sagittal and / or transverse directions in the medial region.

[0077] Preferably, the flexible section and the rigid section overlap at least partially in the vertical direction in the region of the lateral edges of the flexible section. The rigid section projects mediolaterally, preferably on both sides, from the flexible section. In particular, the rigid section can have a greater mediolateral extension than the flexible section. In its normal position, the flexible section preferably overlaps completely with the rigid section in a vertical top view.

[0078] The flexible section can have a greater vertical extension than the rigid section. In particular, the vertical extension of the flexible section can be determined by the shaft height of the footwear. Preferably, the vertical extension of the flexible section is adapted to the height of the shaft of the footwear. In particular, the flexible section extends less vertically in a footwear item with a low shaft than in a footwear item with a higher shaft.

[0079] Alternatively or additionally, the rigid section can be adjusted to the shaft height analogously to the flexible section. Preferably, the heel counter is adjusted to the desired shaft height of the footwear item solely via the flexible section. In particular, the rigid section can always have the same height vertically, regardless of the shaft height.

[0080] The connecting section between the flexible section and the rigid section can, in particular, be a connecting line. The connecting section can, in particular, be formed by the connecting line between the lowest point of the first cut and the lowest point of the second cut. The flexible section can, in particular, pivot about the connecting line. Specifically, the connecting line can form the pivot point or the pivot line about which the flexible section can pivot.

[0081] The connecting section can be linear in a vertical plan view. In particular, the connecting section can describe a curve in a vertical plan view. In particular, the connecting section can describe a circular arc in a vertical plan view.

[0082] The rear cap can preferably be manufactured by a primary forming process. In particular, the rear cap with the flexible section and the rigid section can be manufactured by a primary forming process. Specifically, the rear cap can be cast. The rear cap with the flexible section, the rigid section, and the cutout can be manufactured by a primary forming process. Alternatively, the rear cap with the flexible section and the rigid section can be primary formed, while the cutout(s) are subsequently created by a separation process.

[0083] The back cap is preferably made of a thermoplastic material, in particular a thermoplastic polymer. Specifically, the back cap, with its flexible and rigid sections, can be thermoformed from a thermoplastic material, particularly a polymer. The thermoplastic material preferably has a hardness of 65 to 75 Shore D, in particular 68 to 70 Shore D. Preferably, the back cap is made of a urethane-based thermoplastic elastomer (TPU), in particular a thermoplastic polyurethane. The back cap can, in particular, be made of a so-called high-rebound TPU.

[0084] The rigid section of the heel counter can be connected to the sole of the footwear along its lower vertical edge. The flexible section preferably has no direct connection to the sole. The flexible section can, in particular, be connected to the sole via the rigid section.

[0085] Preferably, the medial region of the heel counter extends vertically from the sole to the top of the boot. The medial region of the heel counter is preferably adapted to the height of the boot. Accordingly, the medial region of the heel counter has a smaller vertical extension in a lower boot than in a higher boot. In particular, the rigid section can be connected to the sole along its lower vertical edge, and the flexible section can be connected to the rigid section via the linear connecting section. Specifically, the rigid section in the medial region of the heel counter can extend vertically from the sole to the connecting section, and the flexible section can extend from the connecting section to the top of the boot.

[0086] Preferably, the heel counter has its greatest distance from the toe of the footwear article in the sagittal direction in its medial region. In particular, the heel section of the footwear article can be defined by the shape and size of the heel counter.

[0087] Preferably, the heel counter is formed between the externally visible upper material of the footwear and the internal lining material of the footwear. In particular, the heel counter is preferably neither visible from the outside of the footwear nor from the inside.

[0088] The following section explains aspects of the invention in more detail using an exemplary embodiment. The features disclosed in the exemplary embodiment can advantageously further develop the subject matter of the claims and the embodiments described above. The following are shown: Figure 1: A schematic side view of the heel counter in the normal position of the flexible section; Figure 2: A schematic side view of the heel counter in the entry position of the flexible section; Figure 3: A schematic comparison of the normal and entry positions of the flexible section; Figure 4: A schematic representation of the heel counter in a view opposite to the sagittal direction; Figure 5: A side view of the heel counter with vertical heights indicated; Figure 6: A section of a sagittal cross-section through the medial area of ​​the heel counter; Figure 7: A schematic sagittal cross-section through the medial area of ​​the heel counter; Figure 8: A schematic representation of a heel section of the footwear article; Figure 9: An isometric representation of a heel section of the footwear article with a padded section;Figure 10: a schematic representation of a heel section of the footwear article with padded section and heel counter; Figure 11: schematic view of a footwear article in the normal position of the flexible section; Figure 12: a schematic view of the footwear article of the ; Figure 9 in the entry position of the flexible section.

[0089] Based on the Figures 1-12The invention will be described in more detail below. The embodiment disclosed in the figures is not to be understood as limiting. For example, shapes and proportions, in particular of the heel counter 10, can vary. The embodiment disclosed in the figures shows, for example, a low shoe that extends to just below the ankle of its wearer. Alternatively, the footwear could also be a shoe with a higher shaft, wherein the proportions of the heel counter are adapted accordingly to the shaft, in particular to the shaft height. In particular, the vertical extent of the heel counter can be adapted to the shaft height. Thus, for example, the invention can also include a footwear with a lower or higher shaft 30, whereby the proportions of the heel counter 10 can change.

[0090] The Figures 1-7Figure 1 shows an embodiment of a heel counter 10 without the associated footwear article. The heel counter 10 comprises a flexible section 11 and a rigid section 12. The flexible section 11 and the rigid section 12 are decoupled from each other by a cutout 20. In particular, the flexible section 11 can move independently of the rigid section 12. Specifically, the flexible section 11 can move independently of the rigid section 12 from a normal position N to the entry position E. The cutout 20 decouples the flexible section 11 and the rigid section 12 in such a way that the shape and / or position of the rigid section 12 relative to the footwear article remains unchanged, regardless of the position of the flexible section 11.

[0091] The flexible section 11 can move back and forth between a normal position N and an entry position E. In particular, the flexible section 11 can pivot from the normal position N to the entry position E and pivot back from the entry position B to the normal position N. Specifically, the flexible section 11 can be moved from the normal position N to the entry position E by the weight of a foot when entering the footwear. The weight of the foot, especially the heel, can pivot the flexible section 11 from the normal position N to the entry position E. Once the foot is inside the footwear and the heel no longer presses on the flexible section 11, the flexible section 11 pivots back from the entry position E to the normal position N on its own.

[0092] In the Figure 1 and 5The rear cap 10, in particular the flexible section 11, is shown in the normal position N. Figure 2 The rear cap 10, in particular the flexible section 11, is shown in the entry position E. To clarify the difference between the normal position N and the entry position E, the rear cap 10 is shown in Figure 3 The starting position E is represented as a solid line, and the normal position N as a dashed line.

[0093] Based on the Figure 3It can be seen that the rigid section 12 preferably retains its position and shape in both the normal position N and the entry position E, and only the flexible section 11 changes its position. Preferably, the flexible section 11 only changes its position in the entry position E, while its shape remains unchanged. Alternatively, the flexible section 11 can widen in the transverse direction during the movement from the normal position N to the entry position E, particularly in the connection area 112.

[0094] The incision 20 completely penetrates the material of the back cap 10, so that no material is present in the area of ​​the incision 20. "Completely penetrates" here does not mean that the incision 20 divides the back cap 10 into a first and a second part. Rather, it is meant to express that the incision 20 does not thin the material, but that no material is present in the area of ​​the incision 20.

[0095] In Figure 4 The rear cap is shown in a sagittal top view, the representation simplifying the view by assuming a flat and non-curved rear cap 10. Based on the Figure 4It can be seen that the rear cap 10 preferably comprises two opposing incisions 20. For the sake of simplicity, only one of the two incisions 20 will be discussed below, whereby the two incisions 20 are identical or mirror images of each other. The following statements therefore apply analogously to both incisions 20.

[0096] The incision 20 is formed by a recess or notch that is open to the surrounding area. In particular, the incision 20 is open towards a lateral edge 102 of the posterior cap 10. In the region of the lateral edge 102 of the posterior cap 10, the incision 20 represents an interruption in the continuity of the lateral edge 102 of the posterior cap 10, so that the lateral edge 102 is interrupted at this point.

[0097] The section of the lateral edge 102 located vertically above the incision, together with the upper edge 201 of the incision, forms the lateral edge of the flexible section 11. Similarly, the section of the lateral edge 102 located vertically below the incision, together with the lower edge 203 of the incision, forms the lateral edge of the rigid section 12.

[0098] The incision 20 extends vertically from the lateral border 102 of the posterior cap 10 obliquely downwards and mediolaterally towards the medial region M of the posterior cap 10. In particular, the incision 20 extends vertically and lateromedially from the lateral border 102 towards the medial region M of the posterior cap 10.

[0099] For example, in Figure 1As shown, the upper edge 201 of the notch 20, in the normal position of the flexible section 11 in the lateral side view, forms a notch angle α N ​​with the vertical axis on the rear cap 10, which is greater than 0° and less than 90°. The notch angle α N ​​is preferably 30° with a tolerance of 10°. That is, the notch angle α N ​​preferably lies in a range of 20° to 40°.

[0100] As the flexible section 11 moves from the normal position N to the entry position E, the incision angle α is continuously reduced. In particular, the incision angle α E, which the upper edge 201 of the incision 20 in the entry position E of the flexible section 11 encloses with the rear cap 10 in the lateral side view, can be between 5° and 25° smaller than the incision angle α N ​​in the normal position. In other words, this means that the flexible section 11 can pivot from the normal position N to the entry position E by 5° to 25°.

[0101] Since the rigid section retains its shape and position, the incision 20 is widened by pivoting the flexible section 11 from the normal position N to the entry position E. That is, the distance between the upper edge 201 of the incision 20 and the lower edge 203 of the incision 20 increases.

[0102] As in the Figures 1 to 7 As can be seen, the flexible section 11 and the rigid section 12 overlap each other vertically in an overlap area. In particular, the flexible section 11 and the rigid section 12 overlap each other in the normal position N of the flexible section in the vertical direction. Figure 2 It can be seen that the flexible section 11 is preferably only pivoted to such an extent that it also overlaps the rigid section 12 in the vertical direction in the entry position E of the flexible section 11.

[0103] In Figure 3The overlap region, and in particular its height, is denoted by Dz. Within the overlap region Dz, the flexible section 11 and the rigid section 12 have points with the same z-coordinate. This means that within the overlap region there are transverse planes spanned by the x-axis and the y-axis that intersect both the rigid section 12 and the flexible section 11. Outside the overlap region, however, the transverse planes spanned by the x-axis and the y-axis intersect either only the flexible section 11 or only the rigid section 12. This is also determined based on the Figure 3 To be recognized, the height Dz of the overlap area preferably does not change when the flexible section 11 is pivoted from the normal position N to the entry position E.

[0104] The flexible section 11 and the rigid section 12 can additionally overlap each other in the sagittal direction, i.e., in the x-direction, at the normal position N of the flexible section 11. Figure 4 It can be seen that the flexible section 11 and the rigid section 12 can also overlap each other in the transverse direction, i.e., in the y-direction, at the normal position N of the flexible section 11. In contrast to the height Dz of the overlap area in the vertical direction, the length Dx in the sagittal direction can vary between the normal position N and the entry position E of the flexible section 11. The in Figure 3 The width Dy of the overlap area, not shown in detail, preferably also remains unchanged. That is, the extent of the flexible section 11 and the rigid section 12 in the transverse direction preferably remains unchanged when the flexible section 11 is pivoted between the normal position N and the entry position E.

[0105] The flexible section 11 and the rigid section 12 are permanently connected to each other in the medial region M of the rear cap 10 via a connecting section 112. As can be seen, for example, from the Figure 4 As can be seen, the connecting section 112 is formed by the line connecting the lowest point (vertically) of the first, left incision 20 and the lowest point (vertically) of the second, right incision 20. This means that the medial region M is exactly as wide as the connecting section 112.

[0106] In the Figures 6 and 7 A sagittal section through the transversely medial region of the posterior cap 10 is visible. In particular, in Figure 6 only the cross-sectional area of ​​the sagittal section is shown, while in Figure 7Additionally, the uncut rear cap 10 is visible. The sagittal section plane intersects the rear cap 10 at a point furthest back in the sagittal direction.

[0107] The rear cap 10 has a curved cut surface in the medial region M in the sagittal section. In the present embodiment, the sagittal section plane also corresponds to the plane of symmetry of the rear cap 10. In other words, the rear cap 10 is mirror-symmetrical in this embodiment, such that the rear cap 10 is identical in both directions mediolaterally from the cut surface. In alternative embodiments, the rear cap may not be mirror-symmetrical. For example, the right incision 20 may be shaped differently from the left incision 20, and / or the rear cap 10 may extend to different distances mediolaterally from the sagittal section plane in the two directions.

[0108] The cut surface has a concave section O and a convex section U. The concave section O is formed above the convex section U. The convex section U is designed to accommodate the heel, or calcaneus, of the foot. That is, the radius of the convex section is adapted to the size of the footwear item and thus to the wearer's heel. As shown in the Figure 7 As can be seen, the concave section O is formed exclusively by the flexible section 11, while the convex section U is formed by the flexible section 11 and the rigid section 12 together.

[0109] The flexible section 11 and the rigid section 12 are connected at the vertex S of the convex section U. Specifically, the lowest point of the incision 20, or the lowest points of the incisions 20, lie at the same vertical height as the vertex S of the convex section U. In alternative embodiments, the lowest points of the incisions 20 may lie at a different vertical height than the vertex S. In this case, the flexible section 11 and the rigid section 12 are not connected at the vertex S.

[0110] The connecting section 112 simultaneously represents the pivot point or pivot axis of the flexible section 11. That is, the flexible section 11 can be pivoted about the connecting section 112. In particular, the connecting section 112 represents a line of rotation for the flexible section 11.

[0111] In Figure 8The heel counter 10 is schematically depicted in a heel section of the upper 30 of a footwear article. The heel section of the upper 30 is designed to accommodate the heel of the foot. In particular, the heel counter 10 can contribute to shaping the heel section. In the Figure 8 Figure 10 shows the heel section and the heel counter in a side view. The medial area of ​​the heel counter overlaps with the sagittal rearmost area of ​​the heel section.

[0112] The heel counter 10 extends in its medial region M in the vertical direction preferably almost as far as the heel section in this region. That is, the heel counter 10 stabilizes the heel section in its rearmost region in the vertical direction preferably almost completely. In particular, the upper vertical edge 101 of the heel counter can lie just below the top edge 301 of the upper 30. The heel counter, especially the medial region M of the heel counter 10, can extend vertically to the sole 40 of the footwear article. In particular, the lower vertical edge 103 of the heel counter 10 can be connected to an upper vertical edge 401 of the sole 40. Preferably, the medial region of the heel counter 10 overlaps the rear region of the heel section by more than 80% in the vertical direction.Preferably, the medial area of ​​the heel counter 10 overlaps with the posterior area of ​​the heel section by more than 90% in the vertical direction.

[0113] In the Figures 9 and 10 The heel section of the upper 30 is visible with a padded section 50. The padded section 50 can be part of the upper edge 301 or form it. In the present embodiment, the padded section 50 forms part of the lining material of the upper 30, which is visible from the inside. In particular, the padded section 50 lines the inside of the upper 30 in the heel area. That is, the padded section 50 is formed on the inside of the footwear article. The padded section 50 is positioned further inside than the heel counter 10. That is, the heel counter 10 is formed between the upper material of the upper 30 and the padded section 50.

[0114] As in Figure 10As can be seen, the padded section 50 overlaps the back cap 10 at least partially. In particular, the padded section 50 overlaps an inner surface of the back cap 10. The padded section 50 essentially follows the contour of the back cap 10. The padded section 50 overlaps the lateral upper edge 101 and the vertical edges 102 of the back cap 10. The padded section 50 projects beyond the lateral upper edge 101 and the vertical edges 102 of the back cap 10, so that the back cap 10 is preferably completely covered by the padded section 50 in these areas.

[0115] The padded section 50 extends vertically from the upper's top edge 301 towards the sole 40. Preferably, the padded section 50, in particular its transversely medial portion, extends vertically from the upper's top edge 301 to more than half of the transversely medial portion of the heel counter 10. In particular, the padded section 50 extends vertically over the entire height of the flexible section 11. That is, the padded section 50 preferably overlaps the flexible section 11 completely in the vertical direction. Preferably, the medial portion of the padded section 50 extends vertically over the entire concave section O of the heel counter 10. Preferably, the padded section 50 extends to near the apex S of the convex section U of the heel counter 10.

[0116] In this embodiment, the medial transverse region of the padded section 50 does not extend vertically all the way to the sole 40. Specifically, the lower edge of the padded section 50 is spaced apart from the upper edge 401 of the sole 40. This space can vary in the mediolateral direction. For example, the distance between the lower edge of the padded section 50 and the upper edge 401 of the sole 40 can decrease continuously in the mediolateral direction. For instance, the lower edge of the padded section 50 can extend to or be connected with the sole 40 at its lateral ends. In contrast, the lower edge of the padded section can be spaced apart from the sole 40 in the medial region.

[0117] In the Figure 11 The footwear item is shown in the normal position N of the flexible section 11, while Figure 12The footwear item is shown in entry position E of the flexible section 11. The comparison of the two Figures 11 and 12 This shows that the entry opening 31E in the entry position E of the flexible section 11 is larger compared to the entry opening 31N of the flexible section in the normal position N. In particular, the entry opening 31E in the entry position E is larger in the sagittal direction. That is, the entry opening extends further in the x-direction in the entry position E than in the normal position N.

Claims

1. Footwear article comprising 1.

1. a shaft (30) with an entry area and an entry opening (31) which is at least partially surrounded by a shaft edge, 1.

2. a sole (40) which is connected to the shaft (30), wherein 1.

3. the shaft (30) comprises a heel section with a heel counter (10) for receiving a heel of a foot, 1.

4. the heel counter (10) comprises a flexible section (11) and a rigid section (12), 1.

5. the flexible section (11) is movable back and forth, in particular pivotable, in the sagittal direction relative to the rigid section between a normal position (N) and an entry position (E), 1.

6. the flexible section (11) and the rigid section (12) overlap each other in the vertical direction in the normal position (N) of the flexible section (11), and wherein 1.7.the flexible section (11) and the rigid section (12) in the overlap area are decoupled from each other, in particular separated from each other, by a cut (20) in the back cap (10).

2. Footwear article according to the preceding claim, wherein the shape and / or position of the rigid section (12) with respect to the footwear article is constant, irrespective of the position of the flexible section (11).

3. Footwear article according to one of the preceding claims, wherein the entry opening (31) in the entry position (E) of the flexible section (11) is larger in the sagittal direction than in the normal position (N) of the flexible section (11).

4. Footwear article according to one of the preceding claims, wherein the incision (20) in a lateral side view on the heel cap (10) with a vertical axis forms an incision angle (α) between 0° and 90°, in particular between 20° and 50°.

5. Footwear article according to any of the preceding claims, wherein the mediolateral extension of the rigid section (12) is greater than the mediolateral extension of the flexible section (11).

6. Footwear article according to one of the preceding claims, wherein the incision (20) is a first incision (20) and the heel cap (10) comprises a second incision (20), and wherein the first incision (20) extends lateromedially from a first lateral edge (102) of the heel cap (10) towards a medial region of the heel cap (10) and the second incision (20) extends lateromedially from a second lateral edge (102) of the heel cap (10) opposite the first lateral edge (102) in a transverse direction towards the medial region.

7. Footwear article according to one of the preceding claims, wherein the heel cap (10) comprises a plane of symmetry extending in the vertical and sagittal directions and wherein the plane of symmetry intersects the heel cap (10) in the sagittal direction of the footwear article at a rearmost point.

8. Footwear article according to one of the preceding claims, wherein a sagittal section through the heel cap (10) in the medial region of the heel cap (10) has a curved section surface with a concave upper section (O) and a convex lower section (U).

9. Footwear article according to the preceding claim, wherein the flexible section (11) extends vertically from a top point of the cut surface to a vertex (S) of the convex section (12).

10. Footwear article according to one of the preceding claims, wherein the heel cap (10) has a substantially constant thickness, and wherein the thickness is preferably 2mm with a tolerance of 0.5mm.

11. Footwear article according to one of the preceding claims, wherein the flexible section (11) and the rigid section (12) are inseparably connected to each other in a medial area of ​​the heel cap (10) in a connecting section (112), and wherein the flexible section (11) is formed in the medial area in the vertical direction above the rigid section (12).

12. Footwear article according to the preceding claim, wherein the connecting section (112) is linear and describes a curve, in particular a circular arc, in a vertical top view.

13. Footwear article according to one of the preceding claims, wherein the heel cap (10) with the flexible section (11) and the rigid section (12), preferably with the incision (20), is produced in a primary forming process, in particular cast.

14. Footwear article according to the preceding claim, wherein the heel cap (10) is thermoformed with the flexible section (11) and the rigid section (12) and is thermoplastic material, and wherein the thermoplastic material preferably has a hardness of 70 Shore D.

15. Footwear article according to one of the preceding claims, wherein the heel cap (10) is formed between an externally visible upper material and an internal lining material of the footwear article, and wherein the lining material preferably has a padded section (50) which substantially follows the shape of the heel cap (10).

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