Footwear item with flexible heel counter

Abstract

Footwear items comprehensive, 1.1. a shaft (30) with an entry area and an entry opening (31) which is at least partially surrounded by a shaft rim, 1.2. a sole (40) which is connected to the shaft (30), wherein 1.3. the shaft (30) comprises a heel section with a back cap (10) for receiving a heel of a foot, 1.4. the rear cap (10) comprises a flexible section (11) and a rigid section (12), 1.5. the flexible section (11) between a normal position (N) and an entry position (E) is movable back and forth in the sagittal direction relative to the rigid section, in particular pivotable, 1.6. the flexible section (11) and the rigid section (12) overlap each other in the normal position (N) of the flexible section (11) in the vertical direction, 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).

Description

[0001] The invention relates to a heel cap of a footwear article, in particular a shoe, having a flexible portion and a rigid portion. In particular, the invention relates to a footwear article having a heel cap with a flexible portion and a rigid portion, which allows the wearer to easily step into the footwear article. The flexible portion can preferably be movable back and forth between a normal position and an entry position, wherein an entry opening of the footwear article in the entry position is larger in the sagittal direction compared to the entry opening in the normal position of the flexible portion. In particular, the invention relates to a footwear article which makes it easier for the wearer to put on the footwear article without using one or both hands or other aids, such as a shoehorn, when stepping into the footwear article.

[0002] When putting on footwear, especially when putting on tight-fitting shoes, the wearer often needs manual assistance to put the footwear on properly. Often, one or both hands are used to hold the upper of the footwear and enlarge the opening. A typical challenge when putting on footwear can be the wearer bending down toward the footwear to grasp it and / or enlarge the opening. This can be particularly difficult for elderly and / or physically challenged people.

[0003] If the wearer fails to use their hands or an aid and attempts to put on the footwear without manually widening the entry opening, this may, for example, lead to bending or folding of the heel section, particularly if the wearer places pressure on the heel section while putting it on. This may, particularly in the long term, lead to damage and / or plastic deformation of the footwear in the heel area, which may render the footwear unusable and / or significantly reduce comfort.

[0004] It is therefore an object of the invention to make it easier for the wearer to put on the footwear article, 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 cap, in particular to a footwear article with a heel cap. The footwear article comprises an upper with an entry area and an entry opening that is at least partially surrounded by a shaft edge. The footwear article can be, for example, a shoe. Preferably, the footwear article is a shoe with a low upper that reaches just below the wearer's ankle. In particular, it can be a sneaker, a low shoe, a sports shoe, a sport-inspired casual shoe, and / or a slip-on.

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

[0008] If the application refers to a normal orientation of the footwear, this means that the footwear is in an upright position on a horizontal base, so that the sole of the footwear is essentially parallel to the base. Essentially parallel to the base means that the transverse planes of the footwear run parallel to the ground, disregarding any curvature of the sole. The directional information used refers to the footwear and is largely independent of its orientation in space. Irrespective of this, the application should assume, unless otherwise stated, that the footwear is in its normal orientation and on a horizontal base.

[0009] When a vertical axis is mentioned in the application, this means the axis that is perpendicular to the sole of the footwear article or perpendicular to a tangential plane of the sole, in particular to a transverse plane. The vertical axis runs in particular from bottom to top. When the footwear article is normally aligned, the vertical axis is perpendicular to the horizontal surface. The vertical direction is understood in particular to be the direction that points in the direction of the direction vector of the vertical axis. With regard to the footwear article, the vertical direction points from the sole towards the shaft edge. 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, with the x-axis and the y-axis spanning a transverse plane that is parallel to the horizontal surface when the footwear article is normally aligned.

[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 article to the opposite lateral side of the footwear article. The transverse axis runs, in particular, transversely through the footwear article and is perpendicular to the vertical axis. The transverse direction is understood, in particular, to be the direction that points in the direction of the direction vector of the transverse axis. In particular, the width of the footwear article 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 article, i.e., from the heel section, to the front, in particular to a toe section, of the footwear article. The sagittal axis is perpendicular to the vertical axis and the transverse axis. The sagittal direction is understood, in particular, to be the direction pointing in the direction of the direction vector of the sagittal axis. In particular, the length of the footwear article can be measured in the sagittal direction.

[0012] The frontal plane or planes are understood to be all planes aligned parallel to the front of the footwear article, in particular parallel to the toe section. The frontal planes run from the top to the bottom of the footwear article and divide the footwear article into a front and a rear part. In the Cartesian coordinate system, the frontal plane is spanned by the direction vectors of the vertical axis (z-axis) and the transverse axis (y-axis).

[0013] Accordingly, the transverse plane(s) are understood to be all planes that run transversely through the footwear article. When the footwear article is normally oriented, the transverse planes run horizontally and divide the footwear 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 or planes are understood to be all planes aligned along the sagittal direction. In the case of the footwear article, 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 of a footwear article is understood to be the upper part of the article of footwear that covers and protects the wearer's foot. The upper can be closed, thus fully protecting the wearer's foot. Alternatively, the upper can also be partially open and, for example, have cutouts. In particular, the upper is understood to be the part of the footwear article 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 article and extends vertically upwards. Depending on the model of the footwear article, the upper may extend to the wearer's ankle or higher. Preferably, the footwear article according to the invention is a low upper, extending vertically below the ankle of the wearer's foot. Alternatively, the upper may be a high upper, extending vertically to or above the ankle of the wearer's foot. The upper may comprise a toe cap, a quarter cap, a heel cap, and a collar.

[0017] The upper can be single-layered or multi-layered. In particular, the upper or parts of the upper can comprise an outer material visible from the outside and a lining material visible from the inside. Additional layers can be formed between the outer material and the lining material. The heel cap is preferably not visible from the outside and is formed between the upper material and the lining material in the heel section of the upper. In particular, the heel cap can be partially or completely covered by the outer material and / or the lining material.

[0018] The upper edge of a footwear article is the upper end of the shaft. The upper edge represents, in particular, the transition area between the footwear article and the wearer's leg. The upper edge forms the uppermost edge of the shaft, over which the foot can step in and out of the footwear article. It can be reinforced, padded, or hemmed to increase comfort and protect the footwear article from wear. The upper edge does not refer to the linear shaft edge; rather, the shaft edge is part of the shaft edge. Depending on any padding and / or the design of the footwear article, the height of the upper edge can vary.

[0019] The footwear article comprises a sole connected to the upper. The sole can be single-layered or multi-layered. In particular, the sole can include an outsole, midsole, insole, and / or insole. Depending on the type of footwear article 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 portion with a heel cap for receiving a heel of the foot. The heel portion, in particular the heel cap, can comprise a convex portion designed to at least partially surround the heel laterally and in the sagittal direction at the rear. In particular, the convex portion of the heel portion or the heel cap can be cup-shaped. The heel portion or the heel cap is preferably adapted to the anatomy of a foot.

[0021] When reference is made to a convex section, this means that the convex section is curved outward relative to the footwear article, creating a hollow that opens toward the interior of the footwear article and into which the heel can be accommodated. In particular, the convex section is convex in a sagittal section through a transversely medial region 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 portion in the area of ​​the heel portion. The padded portion may provide additional cushioning and comfort to the wearer, particularly the wearer's heel. The padded portion may, in particular, ergonomically enclose and support the heel. The padded portion may be part of the shaft edge of the shaft or form it. The padded portion may be formed between the upper material and / or the lining material. Alternatively, the upper material or the lining material may include the padded portion. Preferably, the padded portion is formed internally with respect to the footwear article.

[0023] In particular, the padded section can be formed further inward than the heel cap. The padded section can include a soft textile lining to improve the comfort of the footwear item. The padded section can be made of a foam, a textile lining, such as polyester, nylon, or neoprene, or leather. The padded section can, in particular, have a lightweight, breathable textile covering. The covering can, for example, be made of a mesh fabric.

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

[0025] The padded section can extend vertically from the shaft end edge toward the sole. Preferably, the padded section, in particular the transversely medial region of the padded section, extends vertically from the shaft end edge to at least half of the transversely medial region of the heel cap. In particular, the padded section can extend vertically from the shaft end edge to over half of the medial region of the heel cap. The padded section can overlap at least half, in particular two-thirds, of the medial region of the heel cap in the vertical direction.

[0026] The padded section can extend vertically to the sole of the article of footwear. Preferably, the medial region of the padded section does not extend vertically to the sole. In particular, the padded section can extend continuously increasing further in the vertical direction in the mediolateral direction than in the medial region. In particular, the padded section can extend continuously increasing further in the vertical direction on one side or both sides in the mediolateral direction than in the medial region. In particular, the lateral regions of the padded section can extend to the sole. In this context, mediolateral means from the transversely medial region of the padded section towards a lateral edge or edges of the padded section.

[0027] The lateral edges of the heel cap refer in particular to the lateral edges of the heel cap, which, depending on the design of the heel cap, run along the side of the wearer's heel. The lateral edges can run in the sagittal, vertical, and / or transverse directions.

[0028] Preferably, the padded section protrudes from the heel cap in the lateral and / or vertical direction at the lateral and / or vertical edges. In particular, the padded section can at least partially cover the heel cap, so that the wearer's heel is preferably supported and / or protected by the padded section. Preferably, the padded section completely covers the heel cap in the mediolateral direction, thereby stabilizing the wearer's heel area and optimally protecting it from friction and pressure points, for example from the heel cap. The padded section can reduce the load on the heel, which can reduce blisters and friction, for example, particularly during extended periods of wear or sporting activity.

[0029] The heel cap can comprise a flexible section and a rigid section. The flexible section can be movable, in particular pivotable, back and forth between a normal position and an entry position. In particular, the flexible section can be movable, in particular pivotable, back and forth between the normal position and the entry position relative to the rigid section. 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. In particular, the shape and / or position of the rigid section relative to the article of footwear remains unchanged, regardless of the position of the flexible section.

[0030] In the entry position of the flexible section, the entry opening of the shaft can be larger in the sagittal direction than in the normal position of the flexible section, so that, for example, a wearer's foot can more easily enter the footwear article. In particular, the entry opening can be enlarged in the sagittal direction by moving the flexible section from the normal position to the entry position. By moving the flexible section from the entry position back to the normal position, the entry opening can be reduced in the sagittal direction.

[0031] The flexible section can be moved from the normal position to the entry position, in particular by the wearer by applying pressure to the flexible section with the foot when stepping into the article of footwear. In particular, the pressure which the foot can exert on the flexible section when stepping into the article of footwear causes a movement, in particular pivoting, of the flexible section from the normal position to the entry position. Subsequently, when the wearer's foot is received in the article of footwear, the flexible section can return from the entry position to the normal position. In particular, the flexible section is able to move, in particular pivot, from the normal position to the entry position when the wearer's foot is subjected to pressure.

[0032] The flexible section and the rigid section overlap each other in an overlap region in the vertical direction. 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] Overlapping in the vertical direction means that the flexible section and the rigid section partially or completely overlap in the height of the footwear article. In particular, the flexible section and the rigid section occupy the same vertical position in the overlap area. This means that in the Cartesian coordinate system, in which the vertical axis forms the z-axis, the rigid section and the flexible section at least partially have points with the same z-coordinate.

[0034] The flexible section and the rigid section can also overlap in the sagittal direction in the normal position of the flexible section. Overlapping in the sagittal direction means that the flexible section and the rigid section partially or completely overlap along the length of the footwear article. In particular, the flexible section and the rigid section assume the same longitudinal position in the sagittal direction in the overlap area. This means that in the Cartesian coordinate system, in which the sagittal axis forms the x-axis, the rigid section and the flexible section at least partially have points with the same x-coordinate.

[0035] In addition to or alternatively to an overlap in the sagittal direction, the flexible section and the rigid section can overlap in the normal position of the flexible section in the transverse direction. Overlapping in the transverse direction means that the flexible section and the rigid section partially or completely overlap across the width of the footwear article. In particular, the flexible section and the rigid section occupy the same width position in the transverse direction in the overlap area. This means that in the Cartesian coordinate system, in which the transverse axis forms the y-axis, the rigid section and the flexible section at least partially have points with the same y-coordinate.

[0036] The flexible section and the rigid section are preferably decoupled from each other in the overlapping area by an incision in the heel cap. In particular, the flexible section and the rigid section are separated from each other in the overlapping area by the incision.

[0037] In particular, the flexible section and the rigid section can overlap in the mediolateral direction in the region of the incision in the normal position of the flexible section. Preferably, the rigid section completely overlaps the flexible section in the mediolateral direction in the region of the incision in the normal position of the flexible section. The mediolateral overlap between the flexible section and the rigid section can change, in particular decrease, when the flexible section moves from the normal position to the entry position.

[0038] Preferably, the rigid portion and the flexible portion overlap in the normal position of the flexible portion in both the vertical direction and 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 created by removing or omitting material during manufacture of the back cap. The incision can be pre-formed with the back cap or created subsequently. In particular, the term incision should not be understood as restrictive, in the sense of cut into the back cap. In particular, the incision can be created in a pre-forming process with the back cap. For example, the incision can be pre-formed with the back cap in 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 the surrounding area. "Open to the surrounding area" specifically means that the incision is a recess that is not surrounded by a closed contour. In particular, the incision is open toward 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 from the lateral edge of the posterior cap diagonally downward toward the medial region of the posterior cap. Lateromedial means from the lateral edge of the posterior cap toward a medial region of the posterior cap. Due to the curvature of the posterior cap, the lateromedial direction can have both a transverse and a sagittal component.

[0042] In the normal position of the flexible section, the upper edge of the notch in the vertical direction can enclose an angle of between 0° and 90° with the vertical axis in a lateral side view of the heel cap. Preferably, the notch angle is greater than 0°, in particular greater than 20°. The notch angle can in particular be less than 90°, in particular less than 50°. Preferably, the notch angle is 30° with a tolerance of 10°.

[0043] In the entry position of the flexible section, the upper edge of the notch in the vertical direction can form a notch angle with the vertical axis in a lateral view of the heel cap that is smaller than the notch angle in the normal position. In particular, the notch angle in the entry position can be between 5° and 25° smaller than the notch angle in the normal position. The change in the entry angle in the entry position 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 portion of the heel cap is limited. In particular, the movement of the flexible portion is limited to such an extent that the upper edge of the notch forms an angle greater than 0° with the vertical axis in the entry position. In particular, the movement of the flexible portion is limited to such an extent that the upper edge never runs parallel to the vertical axis in the entry position or during the movement into the entry position.

[0045] The movement of the flexible incision can be restricted, in particular, by the upper material and / or the lining material of the shaft. The upper material and / or the lining material of the shaft can be elastically stretchable, either entirely or in sections, to enable and preferably simultaneously restrict 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 shaft can be inelastic.

[0046] The upper may include a gusset. The gusset may be elastically stretchable to enable and preferably restrict the movement of the flexible section from the normal position to the step-in 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 are inelastic, the upper preferably includes an elastically stretchable gusset that can enable and preferably simultaneously restrict the movement of the flexible section from the normal position to the step-in position.

[0047] The upper material, the lining material, and / or the gusset can stretch, preferably in the sagittal direction, as the wearer steps into the footwear article to allow movement of the flexible section from the normal position to the step-in position. Preferably, the upper material, the lining material, and / or the gusset are / are only stretchable to the extent that the flexible incision can only pivot by 5° to 25°.

[0048] The incision can have various shapes. For example, the incision 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 toward the lateral edge of the back cap and / or toward the end facing away from the lateral edge of the back cap.

[0049] Preferably, the incision is a narrow gap in the heel cap in the normal position of the flexible section, which widens in the entry position of the flexible section. The incision can be a straight or curved gap. For example, if the incision is formed at least partially in the area of ​​the convex section of the heel cap, the incision can also be curved to match the curvature of the convex section. The incision represents, in particular, an interruption or change in the continuity of the heel cap material. The depth and width of the incision can vary.

[0050] The depth is understood in particular to be the distance from the lateral edge of the heel cap to the end of the cutout facing away from the lateral edge, in particular to the deepest point of the cutout. In other words, the depth indicates in particular how far the cutout extends into the material of the heel cap. The width of the cutout is understood in particular to be the distance between the edges of the cutout. The cutout can in particular comprise an upper edge in the vertical direction 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 application refers to decoupling, this means that the rigid section and the flexible section are separated or isolated from one another in the overlapping area so that they act and / or function independently of one another. Decoupling limits or eliminates the mutual dependence or influence of the rigid section and the flexible section, particularly in the overlapping area. This can be demonstrated in particular by the shape and / or position of the rigid section relative to the article of footwear remaining unchanged, regardless of the position of the flexible section. In particular, the rigid section changes neither its shape nor its position when the flexible section moves from the normal position to the entry position and vice versa. The flexible section can function as a type of shoehorn in the entry position.

[0052] A key advantage of this design is that the footwear retains its original shape when the wearer steps into it, particularly in the lower and lateral area of ​​the heel section. This means that the footwear can maintain its stability and shape in this area, thus preventing unwanted deformation. The shape of the footwear can be retained, with the exception of an enlargement of the entry opening in the sagittal direction, which is necessary for entry.

[0053] In particular, the heel section of the footwear retains its transverse shape, which can provide important support for the wearer's heel while preventing the footwear from compressing or expanding in that area. This not only facilitates insertion of the foot into the shoe, but also has the added benefit of protecting the upper material of the footwear. The stability of the rigid section maintains the material's aesthetic appeal, as it isn't compromised by unnecessary stretching or wrinkling.

[0054] In this way, the flexible section makes it easier for the wearer to get into the footwear, as less force is required to insert the foot into the footwear. At the same time, the rigid section allows the footwear to maintain its stability and support, which can also benefit the upper material of the footwear, keeping the footwear in good condition over time and maintaining its overall aesthetic appearance.

[0055] The mediolateral extension of the rigid portion may be greater than the mediolateral extension of the flexible portion. Mediolateral in this context means from the transversely medial region of the back cap toward the lateral edge of the back cap. In particular, the rigid portion and / or the flexible portion may extend from a first lateral edge to a transversely opposite second lateral edge of the back cap, with the rigid portion preferably having a greater extension than the flexible portion.

[0056] When a wearer puts on the article of footwear so that their foot is received within the article of footwear, the rigid portion preferably extends mediolaterally further around the wearer's foot than the flexible portion. In particular, the rigid portion may extend laterally and medially around the heel bone of the foot, while the flexible portion preferably extends medially around the heel bone and laterally and medially around the Achilles tendon. In particular, the rigid portion and a vertically lower portion of the flexible portion may be configured to receive the wearer's heel bone. An upper portion of the flexible portion may be configured to receive the lower portion of the Achilles tendon or the taper of the foot above the heel.

[0057] Preferably, the incision is a first incision, with the back cap comprising a second incision. The second incision can, in particular, be designed analogously to the first incision. The first incision can extend lateromedial from the first lateral edge of the back cap toward the medial region, and the second incision can extend lateromedial from the second lateral edge of the back cap, which is transversely opposite the first lateral edge, toward the medial region.

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

[0059] The first incision and the second incision can converge lateromedially. The lower part of the flexible section preferably extends from the first incision to the second incision. If the first incision and the second incision each extend obliquely downwards from the first lateral edge and the second lateral edge of the posterior cap towards the medial region of the posterior cap, the mediolateral extension of the flexible section decreases downwards in the vertical direction. The flexible section preferably has its smallest mediolateral extension between the deepest point of the first incision and the deepest point of the second incision. The deepest point of the first incision and the deepest point of the second incision are preferably at the same height in the vertical direction.

[0060] The heel cap preferably has a plane of symmetry extending in the vertical and sagittal directions. The plane of symmetry preferably intersects the heel cap in the medial region of the heel cap. In particular, the plane of symmetry can intersect the heel cap at a rearmost point in the sagittal direction of the footwear article. The heel cap can preferably be mirror-symmetrical. In particular, the heel cap can be mirror-symmetrical starting from the medial region in the mediolateral direction toward the first lateral edge and toward the second lateral edge.

[0061] The heel cap may have a curved cut surface in the medial region in a sagittal section through the heel cap. The cutting plane of the sagittal section extends in the vertical and sagittal directions of the footwear article. In particular, the sagittal cutting plane may correspond to the plane of symmetry of the heel cap.

[0062] The cut surface may comprise a concave portion and / or a convex portion. In particular, the cut surface may comprise an upper concave portion and / or a lower convex portion. The convex lower portion may be configured to accommodate the heel of a wearer and to at least partially surround the heel, particularly in the sagittal direction, at the rear and laterally.

[0063] The concave portion can be configured to provide a support surface for the wearer's foot during stepping in, allowing the foot to exert sufficient pressure on the flexible portion to allow the flexible portion to move from the normal position to the step-in position. In particular, the concave portion can guide the foot during stepping into the footwear due to its curvature directed toward the interior of the footwear article.

[0064] The cutting surface has, in particular, a posterior edge in the sagittal direction and a posterior edge in the sagittal direction. In particular, the posterior edge and / or the anterior edge of the cutting surface can comprise a concave section and / or a convex section. In particular, the posterior edge of the cutting surface in the sagittal direction can comprise a concave upper section and / or a convex lower section. Additionally or alternatively, the anterior edge of the cutting surface in the sagittal direction can comprise a concave upper section and / or a convex lower section. Preferably, the anterior edge and the posterior edge of the cutting surface have a concave upper section and a convex lower section.

[0065] The flexible section preferably extends vertically from a topmost point of the cut surface to an apex of the convex section. In particular, the flexible section can extend vertically over half, in particular over two-thirds, of the heel cap. The rigid section preferably extends vertically from a bottommost point of the cut surface to the apex of the convex section. Preferably, the apex of the convex section and the lowest point of the notch or notches have the same height in the vertical direction.

[0066] The heel cap preferably has a substantially uniform thickness throughout. The term "substantially uniform thickness" is intended to express, in particular, that the thickness of the heel cap remains largely constant. There should be no significant fluctuations or differences in thickness, although small, negligible deviations, for example, due to surface unevenness, may be possible. In particular, the heel cap may taper towards its edges due to manufacturing. In particular, fluctuations or differences in thickness should not affect the function and / or stability of the heel cap.

[0067] For example, the cutting surface of the sagittal section through the medial region of the heel cap may taper towards the vertically upper and / or lower edge due to manufacturing reasons. In particular, the cutting surface may have a manufacturing-related radius in the area of ​​its upper and / or lower edge.

[0068] Thickness refers, in particular, to the material thickness of the heel cap. Material thickness is determined, in particular, by the distance between an outer surface of the footwear article and an inner surface of the heel cap, with the distance being measured perpendicular to the respective surface.

[0069] In particular, the anterior edge of the cut surface of the sagittal section through the medial region of the posterior cap can be the same distance from the posterior edge of the cut surface along the vertical axis everywhere, except for any possible taper in the region of the vertical edges. The distance between the anterior edge of the cut surface and the posterior edge of the cut surface corresponds to the thickness of the posterior cap in the medial region.

[0070] The back cap preferably has a thickness of more than 1 mm. The back cap preferably 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.

[0071] The flexible section and the rigid section are preferably permanently connected to one another in the medial region of the heel 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. In particular, the connecting section can correspond to the connecting line between the vertically lowest point of the first notch and the vertically lowest point of the second notch.

[0072] When reference is made to a permanent connection between the flexible section and the rigid section, this is intended to express that the flexible section and the rigid section cannot be separated from each other without causing damage. In particular, the flexible section and the rigid section are manufactured together in a primary forming process. In particular, the rigid section and the flexible section have a seamless transition to each other. This means that, in particular, there is no discernible transition between the flexible section and the rigid section in the connecting section.

[0073] The back cap preferably has, with the exception of the incision or incisions, a flowing, smooth, and uninterrupted outer and inner surface. In particular, there is no discernible transition or break between the flexible portion and the rigid portion in the connecting region. Preferably, the back cap, or rather the material of the back cap, is divided into a rigid portion and a flexible portion exclusively by the incision or incisions.

[0074] 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.

[0075] The flexible section is preferably formed above the rigid section in the medial region in the vertical direction. In particular, the flexible section and the rigid section do not overlap each other in the medial region in the vertical direction. However, the rigid section and the flexible section overlap in the sagittal and / or transverse directions in the medial region.

[0076] 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 protrudes in the mediolateral direction, preferably on both sides of 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 completely overlaps the rigid section in a vertical plan view of the flexible section.

[0077] The flexible section can have a greater vertical extension than the rigid section. In particular, the vertical extension of the flexible section can be based on the shaft height of the footwear item. Preferably, the vertical extension of the flexible section is adapted to the height of the shaft of the footwear item. In particular, the flexible section extends less far in the vertical direction in a footwear item with a low shaft than in a footwear item with a raised shaft.

[0078] Alternatively or additionally, the rigid section can be adjusted to the shaft height in a similar way to the flexible section. Preferably, the heel cap is adjusted to the desired shaft height of the footwear item only via the flexible section. In particular, the rigid section can always have the same height in the vertical direction, regardless of the shaft height.

[0079] 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 from the connecting line between the lowest point of the first notch and the lowest point of the second notch. The flexible section can, in particular, pivot about the connecting line. In particular, the connecting line can form the pivot point or pivot line about which the flexible section can be pivoted.

[0080] 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.

[0081] The heel cap can preferably be manufactured using a primary forming process. In particular, the heel cap can be manufactured with the flexible section and the rigid section in the primary forming process. In particular, the heel cap can be cast. The heel cap can be manufactured with the flexible section and the rigid section, as well as with the incision, in a primary forming process. Alternatively, the heel cap can be primary formed with the flexible section and the rigid section, while the incision or incisions are subsequently created in a separation process.

[0082] The heel cap is preferably made of a thermoplastic material, in particular a thermoplastic plastic. In particular, the heel cap with the flexible section and the rigid section can be molded from a thermoplastic material, in particular plastic. The thermoplastic material preferably has a hardness of 65 to 75 Shore D, in particular 68 to 70 Shore D. The heel cap is preferably made of a urethane-based thermoplastic elastomer (TPU), in particular a thermoplastic polyurethane. The heel cap can in particular be made of a so-called high-rebound TPU.

[0083] The rigid portion of the heel cap can be connected to the sole of the footwear article along its vertically lower edge. The flexible portion preferably has no direct connection to the sole. The flexible portion can be connected to the sole, in particular, via the rigid portion.

[0084] The medial region of the heel cap preferably extends vertically from the sole to the shaft edge. The medial region of the heel cap is preferably adapted to the height of the shaft. Accordingly, the medial region of the heel cap has a smaller extension in the vertical direction for a low shaft than for a higher shaft. In particular, the rigid section can be connected to the sole along its lower edge in the vertical direction, and the flexible section can be connected to the rigid section via the linear connecting section. In particular, the rigid section in the medial region of the heel cap can extend vertically from the sole to the connecting section, and the flexible section can extend from the connecting section to the shaft edge.

[0085] Preferably, the heel cap has the greatest distance from a tip of the footwear article in its medial region in the sagittal direction. In particular, the heel section of the footwear article can be defined by the shape and size of the heel cap.

[0086] Preferably, the heel cap is formed between the outer material of the footwear article, which is visible from the outside, and the inner lining material of the footwear article. In particular, the heel cap is preferably neither visible from the outside of the footwear article nor from the inside of the footwear article.

[0087] Aspects of the invention are explained in more detail below using an exemplary embodiment. The features disclosed in the exemplary embodiment can advantageously further develop the subject matter of the claims and the embodiments explained above. The figures show: Fig. 1: a schematic side view of the heel cap in the normal position of the flexible section; Fig. 2: a schematic side view of the heel cap in the entry position of the flexible section; Fig. 3: a schematic comparison of the normal position and the entry position of the flexible section; Fig. 4: a schematic representation of the back cap in a view against the sagittal direction; Fig. 5: a side view of the heel cap with heights marked in vertical direction; Fig. 6: a cross-sectional view of a sagittal section through the medial region of the posterior cap; Fig. 7: a schematic sagittal section through the medial area of ​​the posterior cap; Fig. 8: a schematic representation of a heel portion of the footwear article; Fig. 9: an isometric view of a heel portion of the footwear article with a padded portion; Fig. 10: a schematic representation of a heel portion of the footwear article with padded portion and back cap; Fig. 11: schematic view of an article of footwear in the normal position of the flexible section; Fig. 12: a schematic view of the footwear article of the Fig. 9 in the entry position of the flexible section.

[0088] Based on the Fig. 1-12, the invention will be described in more detail. The exemplary embodiment disclosed in the figures is not intended to be limiting. For example, shapes and proportions, in particular of the heel cap 10, can vary. The exemplary embodiment disclosed in the figures shows, for example, a low shoe that reaches just below the ankle of its wearer. Alternatively, the article of footwear could also be a shoe with a raised shaft, wherein the proportions of the heel cap are adapted accordingly to the shaft, in particular to the shaft height. In particular, the heel cap can be adapted to the shaft height in its vertical extension. For example, the invention can also comprise an article of footwear with a lower or higher shaft 30, wherein the proportions of the heel cap 10 can change.

[0089] The Fig. 1-7 show an embodiment of a heel cap 10 without the associated article of footwear. The heel cap 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 an incision 20. In particular, the flexible section 11 can move independently of the rigid section 12. In particular, the flexible section 11 can move independently of the rigid section 12 from a normal position N to the entry position E. The incision 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 article of footwear remains unchanged, regardless of the position of the flexible section 11.

[0090] The flexible section 11 can move back and forth from a normal position N to an entry position E. In particular, the flexible section 11 can be pivoted from the normal position N to the entry position E and pivoted back from the entry position B to the normal position N. In particular, the flexible section 11 can be moved from the normal position N to the entry position E by the load of a foot when stepping into the article of footwear. By the load of the foot, in particular the heel of the foot, the flexible section 11 can be pivoted from the normal position N to the entry position E. Once the foot is received in the article of 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 of its own accord.

[0091] In the Fig. 1 and Fig. 5, the back cap 10, in particular the flexible section 11, is shown in the normal position N. In Fig. 2, the heel 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 heel cap 10 is shown in Fig. 3 is shown both in the entry position E in the form of a solid line and in the normal position N in the form of a dashed line.

[0092] Based on the Fig. 3 shows that the rigid section 12 preferably maintains 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 transversely during the movement from the normal position N to the entry position E, particularly in the connecting region 112.

[0093] 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 penetrate" does not mean that the incision 20 divides the back cap 10 into a first and a second part. Rather, it is intended to express that the incision 20 does not mean a thinning of the material, but rather that no material is present in the area of ​​the incision 20.

[0094] In Fig. 4, the back cap is shown in a sagittal top view, whereby the illustration is simplified as a flat and non-curved back cap 10. Based on the Fig. 4 shows that the back cap 10 preferably comprises two opposing notches 20. For the sake of simplicity, only one of the two notches 20 will be discussed below, with the two notches 20 being identical or mirror-inverted. The following statements therefore apply analogously to both notches 20.

[0095] The incision 20 is formed by a recess or notch that is open to the surrounding area. In particular, the incision 20 is open toward a lateral edge 102 of the back cap 10. In the region of the lateral edge 102 of the back cap 10, the incision 20 represents an interruption in the continuity of the lateral edge 102 of the back cap 10, so that the lateral edge 102 is interrupted at this point.

[0096] The portion 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 portion 11. Similarly, the portion 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 portion 12.

[0097] The incision 20 extends vertically from the lateral edge 102 of the back cap 10 obliquely downwards and mediolaterally toward the medial region M of the back cap 10. In particular, the incision 20 extends vertically and lateromedially from the lateral edge 102 toward the medial region M of the back cap 10.

[0098] For example, in Fig. 1, the upper edge 201 of the notch 20 in the normal position of the flexible section 11 in the lateral side view of the back cap 10 forms an angle α with the vertical axis N which is greater than 0° and less than 90°. The cutting angle α N is preferably 30° with a tolerance of 10°. That is, the cutting angle α N is preferably in a range of 20° to 40°.

[0099] If the flexible section 11 moves from the normal position N to the entry position E, the cutting angle α is continuously reduced. In particular, the cutting angle α E , which the upper edge 201 of the notch 20 in the entry position E of the flexible section 11 in the lateral side view of the back cap 10 includes with the vertical axis, between 5° and 25° smaller than the notch angle α Nin the normal position. In other words, this means that the flexible section 11 can pivot by 5° to 25° from the normal position N to the entry position E.

[0100] Since the rigid section maintains its shape and position, the notch 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 notch 20 and the lower edge 203 of the notch 20 increases.

[0101] As in the Fig. 1 to 7, the flexible section 11 and the rigid section 12 overlap each other vertically in an overlap region. In particular, the flexible section 11 and the rigid section 12 overlap each other vertically in the normal position N of the flexible section. Fig. 2 it can be seen that the flexible section 11 is preferably only pivoted to such an extent that it overlaps with the rigid section 12 in the vertical direction even in the entry position E of the flexible section 11.

[0102] In Fig. 3, the overlap area, in particular the height of the overlap area, is marked with Dz. In the overlap area Dz, the flexible section 11 and the rigid section 12 have points with the same z-coordinate. This means that within the overlap area 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 area, 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. Also based on the Fig. 3, the height Dz of the overlapping area preferably does not change when the flexible section 11 is pivoted from the normal position N to the entry position E.

[0103] The flexible section 11 and the rigid section 12 can overlap each other in the normal position N of the flexible section 11 additionally in the sagittal direction, ie in the x-direction. In Fig. 4 it can be seen that the flexible section 11 and the rigid section 12 can also overlap each other in the transverse direction, ie in the y-direction, in the normal position N of the flexible section 11. In contrast to the height Dz of the overlapping 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. Fig. 3, the width Dy of the overlapping area, not shown in detail, preferably also remains unchanged. This means that the extension 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.

[0104] The flexible section 11 and the rigid section 12 are permanently connected to each other in the medial region M of the back cap 10 via a connecting section 112. As can be seen, for example, from the Fig. As can be seen in Figure 4, the connecting section 112 is formed by the connecting line between the vertically lowest point of the first, left incision 20 and the vertically lowest point of the second, right incision 20. This means that the medial region M is just as wide as the connecting section 112.

[0105] In the Fig. 6 and Fig. Figure 7 shows a sagittal section through the transverse medial region of the posterior cap 10. In particular, Fig. 6 only the section surface of the sagittal section is shown, while in Fig. 7, the uncut posterior cap 10 can also be seen. The sagittal section plane intersects the posterior cap 10 at a point on the posterior cap 10 in the sagittal direction.

[0106] The heel cap 10 has a curved cut surface in the medial region M in the sagittal section. In the present exemplary embodiment, the sagittal cut plane simultaneously corresponds to the plane of symmetry of the heel cap 10. In other words, the heel cap 10 in the present exemplary embodiment is designed to be mirror-symmetrical, so that the heel cap 10 is designed to be identical in both directions in the mediolateral direction, starting from the cut surface. In alternative embodiments, the heel cap may also be designed to be non-mirror-symmetrical. For example, the right incision 20 may be designed differently from the left incision 20 and / or the heel cap 10 may extend to different lengths in the mediolateral direction, starting from the sagittal cut plane, in the two directions.

[0107] 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 rather the heel bone, of the foot. This means that the radius of the convex section is adapted to the wearer's heel according to the size of the footwear article. As shown in the Fig. 7, 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.

[0108] The flexible section 11 and the rigid section 12 are connected to each other at the apex S of the convex section U. In particular, the deepest point of the notch 20 or the deepest points of the notches 20 are at the same height in the vertical direction as the apex S of the convex section U. In alternative embodiments, the deepest points of the notches 20 can be at a different height in the vertical direction than the apex S. In this case, the flexible section 11 and the rigid section 12 are not connected to each other at the apex S.

[0109] The connecting section 112 simultaneously represents the pivot point or pivot axis of the flexible section 11. This means that the flexible section 11 can be pivoted about the connecting section 112. In particular, the connecting section 112 represents a rotation line of the flexible section 11.

[0110] In Fig. 8, the heel cap 10 is schematically shown in a heel portion of the upper 30 of a footwear article. The heel portion of the upper 30 is designed to accommodate the heel of the foot. In particular, the heel cap 10 can contribute to the shaping of the heel portion. Fig. Figure 8 shows a side view of the heel section and the heel cap 10. The medial region of the heel cap overlaps with the sagittal-most region of the heel section.

[0111] The heel cap 10 extends in its medial region M in the vertical direction preferably almost as far as the heel section in this region. This means that the heel cap 10 stabilizes the heel section in the rearmost region in the vertical direction, preferably almost completely. In particular, the vertically upper edge 101 of the heel cap can lie just below the shaft end edge 301 of the shaft 30. The heel cap, in particular the medial region M of the heel cap 10, can extend in the vertical direction up to the sole 40 of the article of footwear. In particular, the vertically lower edge 103 of the heel cap 10 can be connected to a vertically upper edge 401 of the sole 40. The medial region of the heel cap 10 preferably overlaps more than 80% in the vertical direction with the rear region of the heel section.Preferably, the medial region of the heel cap 10 overlaps more than 90% in the vertical direction with the rear region of the heel section.

[0112] In the Fig. 9 and Fig. 10 shows the heel section of the upper 30 with a padded section 50. The padded section 50 can be part of the upper edge 301 or form it. In the present exemplary 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 upper 30 in the area of ​​the heel section from the inside. This means that the padded section 50 is formed on the inside with respect to the article of footwear. The padded section 50 is formed further inside than the heel cap 10. This means that the heel cap 10 is formed between an upper material of the upper 30 and the padded section 50.

[0113] As in Fig. 10, the padded section 50 at least partially overlaps with the back cap 10. The padded section 50 overlaps, in particular, 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 with the lateral upper edge 101 and the vertical edges 102 of the back cap 10. The padded section 50 protrudes from 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.

[0114] The padded section 50 extends from the shaft end edge 301 in the vertical direction toward the sole 40. Preferably, the padded section 50, in particular the transversely medial region of the padded section 50, extends from the shaft end edge 301 in the vertical direction to over half of the transversely medial region of the heel cap 10. In particular, the padded section 50 extends vertically over the entire height of the flexible section 11 in the vertical direction. This means that the padded section 50 preferably completely overlaps the flexible section 11 in the vertical direction. Preferably, the medial region of the padded section 50 extends vertically over the entire concave section O of the heel cap 10. Preferably, the padded section 50 extends close to the apex S of the convex section U of the heel cap 10.

[0115] In the exemplary embodiment, the transversely medial region of the padded section 50 does not extend vertically all the way to the sole 40. In particular, the lower edge of the padded section 50 is at a distance from the upper edge 401 of the sole 40. The distance between the lower edge of the padded section 50 can change 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 continuously decrease in the mediolateral direction. For example, the lower edge of the padded section 50 can extend to the sole 40 at its lateral ends or be connected to it. In the medial region, however, the lower edge of the padded section can be at a distance from the sole 40.

[0116] In the Fig. 11, the footwear article is shown in the normal position N of the flexible section 11, while Fig. 12 shows the footwear article in the entry position E of the flexible section 11. The comparison of the two Fig. 11 and Fig. 12 shows that the access opening 31 E in the entry position E of the flexible section 11 compared to the entry opening 31 N of the flexible section is increased in the normal position N. In particular, the access opening 31 E in the entry position E, the entry opening is enlarged in the sagittal direction. This means that the entry opening extends further in the x-direction in the entry position E than in the normal position N.

Claims

[1] Footwear articles 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 upper (30), wherein 1.

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

4. the back cap (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 between a normal position (N) and an entry position (E) relative to the rigid section, 1.

6. the flexible section (11) and the rigid section (12) overlap each other in the normal position (N) of the flexible section (11) in the vertical direction, and wherein 1.

7. the flexible section (11) and the rigid section (12) are decoupled from each other, in particular separated from each other, in the overlapping area by an incision (20) in the rear cap (10). [2] Article of footwear according to the preceding claim, wherein the shape and / or position of the rigid portion (12) relative to the article of footwear is constant, regardless of the position of the flexible portion (11). [3] Article of footwear according to one of the preceding claims, wherein the entry opening (31) is larger in the sagittal direction in the entry position (E) of the flexible portion (11) than in the normal position (N) of the flexible portion (11). [4] Article of footwear according to one of the preceding claims, wherein the incision (20) forms an incision angle (α) between 0° and 90°, in particular between 20° and 50°, in a lateral side view of the heel cap (10) with a vertical axis. [5] Article of footwear according to one of the preceding claims, wherein the mediolateral extension of the rigid portion (12) is greater than the mediolateral extension of the flexible portion (11). [6] An article of footwear according to any 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) transversely opposite the first lateral edge (102) towards the medial region. [7] An article of footwear according to any one of the preceding claims, wherein the heel cap (10) comprises a plane of symmetry extending in the vertical direction and sagittal direction, and wherein the plane of symmetry intersects the heel cap (10) in the sagittal direction of the article of footwear at a rearmost point. [8] Article of footwear 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 cut surface with a concave upper portion (O) and a convex lower portion (U). [9] Article of footwear according to the preceding claim, wherein the flexible portion (11) extends vertically from a top point of the cut surface to an apex point (S) of the convex portion (12). [10] Article of footwear according to one of the preceding claims, wherein the heel cap (10) has a substantially constant thickness, and wherein the thickness is preferably 2 mm with a tolerance of 0.5 mm. [11] Article of footwear according to one of the preceding claims, wherein the flexible portion (11) and the rigid portion (12) are non-detachably connected to one another in a medial region of the heel cap (10) in a connecting portion (112), and wherein the flexible portion (11) is formed in the medial region vertically above the rigid portion (12). [12] Article of footwear according to the preceding claim, wherein the connecting portion (112) is linear and describes a curve, in particular a circular arc, in a vertical plan view. [13] Article of footwear according to one of the preceding claims, wherein the heel cap (10) with the flexible portion (11) and the rigid portion (12), preferably with the incision (20), is produced in a primary forming process, in particular is cast. [14] Article of footwear according to the preceding claim, wherein the heel cap (10) with the flexible portion (11) and the rigid portion (12) is molded from a thermoplastic material, and wherein the thermoplastic material preferably has a hardness of 70 Shore D. [15] Article of footwear 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 article of footwear, and wherein the lining material preferably has a padded portion (50) which substantially follows the shape of the heel cap (10).

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