Shoe

Abstract

A shoe (12) comprising: a sole (14); an upper portion (16) forming an opening in the shoe (48) configured to receive a user's foot; a heel guard (52) made of a flexible material, the heel guard (52) being configured to receive a rear portion of the user's heel; the upper portion (16) comprising elastic material; the heel guard (52) comprising an opening in a rear portion of the heel guard (52), wherein the elastic material of the upper portion (16) is configured to cover the opening, wherein the tension created by the elastic material of the upper portion (16) when stretched facilitates the retention of the user's foot within the shoe (12); the heel protector (52) comprising an upper portion (64) configured to fold downwards and away from the shoe opening (48) under the load of a user's foot to widen the shoe opening (48) to facilitate foot insertion, wherein the upper portion (64) of the heel protector (52) is configured to return to its uncompressed configuration once the user's foot is inserted into the shoe (12); and wherein the upper portion (16) comprises an inner foam layer (92) extending inwards into the shoe opening (48); wherein the foam layer (92) is configured to be compressed by the user's heel during insertion of the user's foot into the shoe (12), and to expand at least partially once the user's foot is inserted into the shoe (12) to enhance the support of the user's foot.

Description

Shoe Technical field This disclosure relates generally to a heel counter or a component of a heel counter of a shoe, and in particular to a heel counter that is designed to allow easier entry of the wearer's foot into the shoe. Background Conventionally, when the user puts on footwear such as athletic shoes, they often have to use one or both hands or use a shoehorn separate from the shoe to properly insert the foot into the shoe and ensure that the quarter is not crushed under the heel. Brief summary of the disclosure The aspects of this invention relate to a footwear article that has a structure capable of deforming to support easier insertion of the foot. In one aspect of the invention, a heel protector can be uniformly molded with a top, a middle, and a bottom, the top having a shorter mediolateral length than the middle. The middle and bottom portions can form a concave structure configured to receive the heel. The top of the heel protector has a first configuration in its original state and is capable of deforming into a second configuration under a user's foot load when the user is putting on the shoe. In the second configuration, at least part of the top is lower relative to the first configuration, and the top is capable of returning to the first configuration after the user's foot load is removed. The middle portion can include a peripheral portion having a first thickness and a central portion having a second thickness, the second thickness being less than the first thickness. In another aspect of the invention, the upper portion of a heel protector has a first configuration in its original state and is capable of deforming into a second configuration under a user's foot load while the user is putting on the shoe. The heel protector is then able to return to the first configuration after the user's foot load is removed. In the first configuration, the upper portion is inclined downwards at a first angle with respect to a vertical line normal to a horizontal ground surface. In the second configuration, the upper portion is inclined at a second angle greater than the first angle. Additionally, in the second configuration, a lower region of a central portion of the heel protector extends outwards in a direction away from the shoe opening, causing the shoe opening to widen along the mediolateral direction. In another aspect of the invention, an upper portion of a footwear article includes a U-shaped foam ankle collar that is substantially tubular in shape and forms the upper region of the foot-receiving shoe opening. The foam ankle collar can extend at least partially around and over the foot-receiving shoe opening and can be compressed by the user's heel during foot insertion. The ankle collar can exert pressure on the user's ankle once the foot is inserted into the footwear. The ankle collar can also have a flattened region along its length, angled downward from the upper region toward the front of the footwear article. In another aspect of the invention, a heel counter support is located in the upper area and above the sole structure. The heel counter support may have at least two hollow receptacles angled backward. Additionally, each of the two hollow receptacles receives one end of a compressible component. The compressible component has a first configuration in its original state, and it is capable of deforming into a second configuration under a user's foot load when the user is putting on the shoe and is capable of automatically returning to the first configuration when the user's foot is fully inserted into the shoe. Brief description of the drawings By way of example only, selected embodiments and aspects of the present invention are described below. Each description refers to a figure ("FIG.") illustrating the described subject matter. Some figures shown in the drawings or photographs accompanying this specification may be for footwear intended for the left or right foot. Each figure includes one or more identifiers for one or more parts or elements of the invention. Various realizations are described with reference to the drawings, in which: FIG.1 is a front view of a compressible heel protector. FIG.2 is a perspective view of the compressible heel protector of FIG.1. FIG.3 is a side view of the compressible heel protector of FIG.1. FIGS. 4A and 4B are a parallel front perspective view of the compressible heel protector of FIG. 1 in its compressed configuration (4A) and in its decompressed configuration (4B). FIGS.4C and 4D are a parallel top view of the compressible heel protector of FIG. 1 placed inside a shoe in its compressed configuration (4C) and in its decompressed configuration (4D). FIG. 5 is a front view of a heel protector configured to have a series of crisscrossing bars. FIG.6A is a schematic illustration of a cross-section of arc lengths of the rearmost part of the heel protector of FIG.1. FIG.6B is a cross-sectional view of the heel protector of FIG.1 taken at lines 6-6 in FIG.1. FIG.7 is a side view of a heel counter with a heel protector located inside the heel counter. FIG. 8 is a top view of the heel buttress of FIG. 7. FIG.9 is a perspective view of the heel buttress of FIG.7. FIG.10 is a cross-sectional view of the heel buttress of FIG.8 taken at lines 10-10 in FIG.8. FIG.11 is a perspective view of a shoe with a heel counter incorporating a rigid heel protector. FIG.12 is a side view of the shoe in FIG.11. FIG.13 is a rear view of the shoe in FIG.11. FIG.14 is a view from below of a tongue and instep support. FIG.15 is a perspective view of a shoe with a padded lining. FIG.16 is a side view of the quilted lining of FIG.15. FIG.17 is a perspective view of the quilted lining of FIG.15. FIG.18 is a top view of the quilted lining of FIG.15. FIG.19 is a cross-sectional view of the quilted lining of FIG.18 taken at lines 19-19 in FIG.18. FIG.20A is a side view of a shoe with a heel counter support. FIG.20B is a perspective view of a shoe with a heel counter support. FIG.20C is a rear view of the shoe in FIG.20A. FIG.21 is a perspective view of the lower part of the upper area of ​​the shoe in FIG.20. FIG.22 is a perspective view of the sole and heel counter support of the shoe in FIG.20. Detailed description A shoe comprises a sole and an upper. The sole may comprise an outsole portion, a midsole, and / or an integrally formed outsole portion and midsole. The upper may comprise a toe box, vamp, tongue, midquarter, lateral quarter, and heel counter. The shoe has a forefoot portion, a rear portion, a medial side, and a lateral side. The upper may comprise an outer layer, inner layers or an internal structure, and / or an inner lining. The upper forms a shoe opening capable of receiving the wearer's foot when the wearer is putting on the shoe. The heel counter or the rear portion of the upper may comprise structures that facilitate easier insertion of the foot into the shoe opening. These structures may also more easily support the removal of the foot. The heel counter or the rear portion of the upper may further have a temporary widening when the user puts on or takes off the shoe. This widening of the shoe opening may be initiated by the user placing a load on the heel counter or the rear portion of the upper, which can be exerted by the user's foot with minimal or no assistance from the user's hands. In other embodiments of the invention, the heel counter may be compressible when placed under sufficient load and return to its decompressed state. The lowering of the heel counter may also facilitate easier insertion of the user's foot.Once a foot is inserted into the shoe, the heel counter may have a compressible layer, such as a foam component, that secures the foot or improves foot security when the user makes normal use of the shoe. Compressible heel protector. Referring to the embodiments in FIGS.1-10 (and figure 11 which illustrates the upper zone 16 and the outer layer 42 in the context of an embodiment of a rigid heel protector), a heel counter 32 may comprise a compressible heel protector 52 which may be an inner component of the upper zone 16, a part of the inner lining 46 or a joint adjacent to the inner lining 46 of the upper zone 16 such that the heel protector 52 makes contact with the foot, or a part of the outer layer 42 of the upper zone 16 or a joint of an outer surface of the outer layer 42 of the upper zone 16. Referring to the exemplary embodiment of FIGS. 1-4, the heel protector 52 has a shape substantially corresponding to a heel cover and has a profile resembling a pear shape. The heel protector has a mediolateral width near the heel protector collar 84 that is less than the mediolateral width of the lower part 54, as shown in FIGS. 1-2. As shown in FIG. 2, the inner wall 66 of the upper portion 64 of the heel protector at the rearmost part of the heel protector may have a downward slope between 0 and 90 degrees with respect to a vertical line 86 that is normal to the horizontal surface of the floor 88. In this exemplary embodiment, the upper portion 66 may have a downward slope of 30 degrees. The inner wall 66 of the upper portion 64 of the heel protector 52 may also have a convex curve facing the shoe opening 48. The upper portion of the convex curve has the downward slope A1 of 30 degrees. The lower portion of the convex curve extends just above the portion of the heel protector 52 that receives the heel. The lower portion of the convex curve may have a downward slope less than the downward slope of A1 and gradually decreases as it approaches a slope equal to the vertical line 86.The 52 heel protector has a concave curve that surrounds the back of the heel. The medial and lateral sides of the 52 heel protector can also extend to provide support for part of the quarter and even up to the toe. The thickness of the heel protector 52 can be reduced in various locations. The upper edge line 88 can have a reduction in thickness on both the inner and outer surfaces of the heel protector 52. The heel protector 52 can have a greater thickness T1 along the other perimeter edges, such as 2 to 3 mm. In another embodiment, the thickness T1 can be reduced in certain areas to provide greater flexibility to the heel protector 52 when putting on or taking off the shoe 12. In one embodiment, the thickness T1 of the heel protector 52 can gradually decrease from a peripheral portion 70, forming an area on the periphery of the heel protector 52, towards the central portion or region 50 of the middle portion 58.The minimum thickness T1 in the central region 50 of the midsection 58 can be approximately, but not limited to, 1 / 4 to 1 / 6 of the thickness relative to the thickest parts on the periphery of the heel protector 52, such as 0.5 to 1 mm. The thickest region on the upper part can be greater than the thickest region on the lower part. The reduced thickness T1 of the central region of the midsection 58 can allow the heel protector 52 to compress under sufficient load. In an alternative embodiment, the thickness T1 can be reduced throughout the mediolateral portion in multiple regions, such as the regions on the midsection 58 and / or the regions on the upper part 64. The thinner regions can provide greater flexibility and flexion of the heel protector 52, which provides the necessary compressibility under the load of a user's foot, such as when putting on a shoe 12.Such compression allows the upper portion 64 and / or the middle portion 58 of the heel protector 52 to move backward and widen the shoe opening 48 to allow easier entry of the foot. The heel protector 52 is capable of deforming from its original configuration to a second configuration under the load of a user's foot when putting on the shoe. For example, the heel protector 52 can be partially compressed so that the upper portion 64 and / or the middle portion 58 of the heel protector 52 lowers sufficiently to allow the insertion of the user's foot. See, for example, FIG. 9. Once the user's foot is inserted into the shoe 12, the heel protector 52 can return to its decompressed configuration. In addition to this embodiment, when a user puts on shoe 12, the upper portion of the convex curve of the heel guard 52 or the uppermost segment of the heel counter 32 of shoe 12 may be lowered and extended backward away from the foot, as the heel counter 32 is compressed as shown in FIG. 4A. This action allows the user's foot to be inserted into the shoe opening 48 with a reduced degree of plantar flexion. During compression of the heel guard 52, portions of the heel guard 52 may move forward in the direction of the forefoot portion. The deformation of the heel guard 52 may include the attached heel counter 32 widening, with the medial and lateral sides of the heel guard moving outward, thereby widening the shoe opening.The mediolateral widening of the shoe opening 48 allows for easier entry, such as easier insertion of the forefoot. In one example, the 7.5 cm shoe opening can be widened to 4 cm, or approximately 50%. See Figures 4C and 4D. The widening may be less or greater depending on the shoe size and the flexibility of the heel protector. In some shoes, the desired widening may be less or greater depending on the securing and usage requirements. In an exemplary embodiment of the 52 heel protector as shown in FIGS. 1-4, the thickness T1 of a 52 heel protector made of a polymeric material, such as Dupont Hytrel, can range from 0.4 mm to 4 mm. The thickness T1 of the heel protector can be thinner or thicker in various regions depending on the desired elasticity and durability properties of the material. For example, the midpoint region can be thinner than the surrounding regions, and in particular, a central portion can be thinner, as shown in FIG. 6B. The central portion can be spaced further away from the medial and lateral edges, where the peripheral edges can be thicker. Other suitable materials may include other thermoplastic elastomers or other polymers capable of providing the compression characteristics of the heel protector. In another exemplary embodiment, the heel protector can be configured to have a series of crisscrossing bars forming an egg-crate-like arrangement. Figure 5 shows an exemplary embodiment with bars in a diagonal configuration. In an alternative embodiment, the bars can also be in a vertical and lateral configuration. The holes between the bars can be approximately uniformly sized. The bars can be of uniform dimensions or vary in thickness and width. Thinner or narrower bars can be used to improve flexibility and compressibility at designated locations, while thicker or wider bars provide varying degrees of rigid support. For example, the bars can be thinner in the midsection, and particularly in the central portion of the midsection furthest from the edges.The surrounding bars can be thicker than the central section. The central section allows for greater flexibility in order to deform under load. In an exemplary embodiment, the rearmost portion of the heel protector 52 may have an overall shape in vertical cross-section that roughly resembles an S-wave, as shown in a cross-sectional diagram in FIG. 6A. The upper and lower portions of the S-wave may be differentiated at point P1 by a horizontal plane, i.e., the midline 90, which is drawn between the upper and lower arc ends of the S-wave and intersects the heel counter 32 and the inflection point of the S-wave. The amplitude (AU) and width (WU) of the upper arc of the S-wave may differ from the amplitude (AL) and width (WL) of the lower arc of the S-wave. In the exemplary embodiment, WU is approximately 0.44 times that of WL. AU is approximately 1 / 3 that of AL. In a possible embodiment, WU is approximately 2 centimeters and WL is approximately 4.5 centimeters.The AU is roughly 3 millimeters and the AL is roughly 9 millimeters. The S-shaped configuration decreases in both AU / AL and WU / WL in cross-sections in areas extending from the rearmost cross-section of the heel protector 52 and may consist solely of the lower arch along the medial and lateral sides of the heel protector 52. The measurements at the rearmost part of the heel protector 52 of the exemplary embodiment are intended to be exemplary. The central region of the midfoot of the heel protector may have a single hole or multiple holes. Since the central region of the midfoot can be constructed from less material than the maximum thickness of the collar and / or the maximum thickness of the base, it can be made of a more flexible material than the material forming its periphery. The resulting effects of the central region, comprising a single hole, multiple holes, reduced thickness, and / or a more flexible material, can facilitate the user's entry into and removal from the shoe. In addition to the exemplary implementation, the heel protector 52 can be attached to at least one inner foam layer 92, as shown in FIG. 10. The heel protector 52 can be located inside the heel counter 32 of the upper zone 16 as shown in FIGS. 8-10. The foam layer 92 can align the inner wall 66 of the heel protector 52 and the outer wall of the heel protector 52. Around the top and middle portions, the foam layer 92 can protrude and extend further into the shoe opening 48. The foam layer 92 can be thicker at or adjacent to the top 64 and middle 58 of the heel protector 52, thereby forming part of the sleeve of the shoe opening 48. The thicker foam layer 92 can provide support for the user's foot once inserted into the shoe 12, as the foam would be located above the calcaneus region of the user's foot and extend around at least parts of the ankle region of the foot. Since the foam is compressible, it can be compressed by the heel during insertion or removal of the foot and support the user's ankle once the foot is inserted. Rigid heel protector. In an exemplary embodiment, a shoe 12 may have a heel counter 32 located at the rear 36 of a shoe upper 16 as shown in FIGS. 11-13. The heel counter 32 may comprise a heel protector 52 which may be an inner component of the upper 16, a part of the inner lining 46 (as seen in figure 9) or a joint adjacent to the inner lining 46 of the upper 16 such that the heel protector 52 contacts the foot, or a part of the outer layer 42 of the upper 16 or a joint of an outer surface of the outer layer 42 of the upper 16. The heel protector may have a lower portion that forms a heel cup configured to receive the heel of the foot. The lower portion of the heel protector may further have lateral extensions around the medial and lateral sides. The heel protector may have a middle portion located above the lower portion of the heel protector and curving inward over the heel bone, or it may consist of a hole. The heel protector may have a hole located at the rear of the heel cup. In addition to this embodiment, the heel protector may be a rigid heel cup constructed of a material that is substantially incompressible under the load of the foot. At least one hole can be incorporated into the middle of the rigid heel protector to improve the shoe's fit around the heel. The upper layers of material covering the hole may include an elastic material that stretches around the contours of the heel. The tension created by the stretching elastic material can improve foot support during normal shoe use. The upper portion of the heel protector can be configured with a gentle curve extending from the upper edge of the curved heel protector downwards towards the shoe opening 48. The inner wall of the upper has an overall downward slope extending from the curved upper edge of the upper towards the inside of the upper area 16. The inner wall of the upper can be sized similarly to a shoehorn so that the gentle curve and the angle of the downward slope of the upper allow the heel of the foot to slide into the shoe 12 more easily. The heel protector can be constructed of a rigid material that substantially does not compress under the load of the user's foot.In an alternative embodiment, the heel protector may have some flexibility so that the upper part of the heel protector may have a slight flex sufficient to bend down and away from the shoe opening and / or widen the shoe opening 48 for easier insertion and / or removal of the foot. As shown in FIG. 11, the upper edge of the heel counter 32 can also form a resilient support structure for the rear heel collar 74. When the heel protector 52 is incorporated into the upper zone 16, fabric materials or suitable materials known in the art can be used to cover the heel protector 52, thereby forming the outer layer 42 and inner layers or structures 44 of the upper zone. The fabric material can be extended over the heel protector 52, thereby forming an extension of the heel collar 74. Foam material or any known inner lining material can be used as the compressible inner layer of the upper section 16 in FIG. 11. The foam material can be bonded to the inner surface of the heel protector 52 to provide cushioning against the rigid heel protector material. The thickness of the foam material can be uniform or vary in certain locations depending on the desired cushioning or support for the foot. In one exemplary embodiment, thicker foam material can be located on the inner wall 66 of the upper section 64 and can further extend at least a portion along the mediolateral length of the inner wall 66. The foam material can be configured to curve around at least a portion of the ankle above the heel when the shoe 12 is worn, similar to the foam material configuration shown in FIG. 10.In this embodiment, the user's foot can compress the foam material during foot insertion. After foot insertion, the foam material can expand to its fully decompressed state or expand partially, thereby improving foot security within the shoe. A thinner foam material can be used to line the other parts of the heel protector. The heel protector 52 can be used in combination with a shoe upper 16 having at least one elastic region 78 located on the sides of the upper between the heel protector 52 and the front of the foot-receiving shoe opening 48. The elastic region 78 may have one or more elastic materials that allow the rear of the heel counter 32 to be temporarily moved backward to widen the foot-receiving shoe opening 48 for easier insertion of the foot into the shoe 12. As shown in FIG. 11, the elastic material may be a reinforcement 80 configured to be fixed within a recess in the upper, such as a reinforcement in the mid-quarter or lateral quarter, or both. The elastic material may be in any spacing between the heel protector 52 and the upper located in the quarters 30 or vamp 24, or possibly a tongue.The elastic material can also be configured as a series of elastic strips or a band that extends between the heel protector 52 to the medial and lateral sides of the vamp 24 or possibly a tongue. Instep support. In some embodiments, an instep support may be used to help prevent, in some cases, the instep of the user's foot from dragging a portion of the instep, or the tongue from partially entering the throat area when the user puts on the shoe. In some embodiments having a tongue 126 as shown in FIG. 14, the medial side of the upper portion 132 of the tongue 126 is attached to the first or proximal end of a medial elastic strap 128, and the lateral side of the upper portion 132 of the tongue 126 is attached to the first or proximal end of a lateral elastic strap 130. The lower front portion of the tongue is attached directly to the upper. Each of the medial and lateral elastic straps may be attached to the upper directly to the inner lining of the upper at its second or distal ends. In an alternative embodiment, the elastic straps may extend through an opening in the inner lining of the middle and lateral quarters, respectively. The second end of each of the medial and lateral elastic straps may terminate, respectively, at the sole, the sockline, or a region within the inner lining of the upper.The elastic straps work to maintain the overall positioning of the tongue when the user puts on the shoe. In other embodiments, each of the medial and lateral sides of the tongue edge, or a portion of the upper tongue, is joined by a reinforcement, which may be made of elastic material, to the inner lining of the upper mid-quarter and lateral quarter of the upper. This reinforcement may similarly serve to maintain the overall positioning of the tongue when the wearer puts on the shoe. In another tongue embodiment, at least a portion of the medial and lateral edges of the tongue may be fixed or sewn directly to the inner surface of the upper and the tongue. Furthermore, the tongue may extend wider than a conventional tongue along the mediolateral direction, and the edges or a portion of the extended portion may be fixed or sewn to the inner surface of the upper. In other embodiments, a tongue or vamp support, which can be constructed of a material such as a sheet harder than the tongue or vamp fabric, can be attached to the outer surface of the tongue or embedded between an outer tongue layer and an inner tongue layer facing the shoe opening. The tongue or vamp support can reduce or prevent the tongue or vamp from collapsing during foot insertion. In an embodiment shown in FIG. 14, the tongue support 134 can be made of a stiffer material such as a thermoplastic polymer configured to be more rigid than the tongue. In some embodiments, the tongue or vamp support can be 0.2 mm to 1 mm thick. The instep support can be coextensive with the instep or tongue, or it can extend beyond the medial or lateral sides of the instep or tongue. In the embodiment shown in FIG.14, the tongue support 134 may be narrower and shorter than the instep or tongue. In one embodiment, a quarter reinforcement element may extend from the heel counter to the instep or cheekpiece. When a reinforcement such as reinforcement 80 in FIG. 11-12 is incorporated, a quarter reinforcement element may extend from the heel counter 32 along the lower front edge of the reinforcement and around the upper edge of the collar to the instep, to a region near the vamp 24, or to a cheekpiece adjacent to a tongue. A quarter reinforcement element may be stiffer than the material of the upper or quarter area. The quarter reinforcement element material may be constructed of leather, plastic, or rigid fabric. The quarter reinforcement element may be attached to the upper area by cohesion or stitching. The quarter reinforcement element may be configured as an elongated shape, such as a strip extending along the lower front edge of the reinforcement and the collar portion.The quarter reinforcement element can be located on the outer surface or can be an inner layer of the upper, such as an embedded layer within the upper or along a portion of the inner lining of the upper. A quarter reinforcement element can provide greater stability to the shoe opening by resisting the quarters and instep area from sagging or shifting inward when the foot is inserted into the shoe and pushes the heel counter backward. When a quarter reinforcement element is used in combination with a chin strap layer in lace-up shoes, the chin strap can add additional structural support by providing resistance against the quarters and instep, preventing them from sagging or shifting inward within the shoe opening. Thus, when the foot pushes against the heel counter and the reinforcement stretches backward, the quarter reinforcement element is not pulled back significantly. Consequently, the shoe opening can be wider when the foot enters the shoe and pushes the heel counter backward. Compressible lining. In some embodiments, the inner surface of the heel counter and the heel / ankle collar may have a portion with a compressible layer, such as a foam layer. This compressible layer extends into the shoe opening. It compresses under load when the shoe is put on or taken off. After the foot is inserted into the shoe, the foam layer expands fully or partially to its uncompressed state, and this expansion improves the foot's secure fit within the shoe. In one exemplary embodiment, the compressible layer 101 is embedded at least within a portion of the ankle collar 140 and the upper region of the heel counter 32. See Figures 15-19. The compressible layer 101 extends into the shoe opening. When the shoe is put on, the foot exerts a load on the compressible layer, thereby widening the shoe opening through the transient compression of the compressible layer. After the foot is inserted into the shoe, the compressible layer expands partially or completely to return to its original shape. The expansion of the compressible layer causes the foam to expand around the foot, which can improve comfort and foot support. In some embodiments, the compressible layer extends over and / or around the user's calcaneus bone and around at least portions of the ankle region of the foot. The compressible layer 92 can be constructed from a foam material such as EVA or polyurethane foam. The shape of the compressible layer can be preformed by molding the material and secured between at least two layers of textile material. The shape of the compressible layer can have at least a partially rounded outer surface that extends inward into the shoe opening and / or ankle collar. The volume of the compressible layer can be greater at the rear of the heel counter and decrease along the longitudinal direction of the inner part of the foam layer on both sides of the shoe, as shown in Figures 17-18. The compressible layer can also decrease or be rounded along the vertical axis, and the compressible layer is greater in volume at the top of the ankle collar 140 and smaller at the bottom of the ankle collar 140. See Figures 18-19.The compressible layer can be used to form the entire heel protector without the need for an additional heel counter or heel counter. Alternatively, the compressible layer can be used in combination with a compressible heel protector. The heel protector can define an outer surface of the upper zone, an inner surface of the upper zone, or an inner layer, for example, if it is embedded within the compressible layer. In the exemplary embodiment, a lower flange 118 can extend downward from the ankle collar and is configured to join the upper section. The lower flange can be configured to any dimensions necessary to secure the ankle collar to the upper section. The lower flange can also vary in length. In some embodiments, the lower flange can define the portion of the ankle collar joined to the upper section without extending downward from the ankle collar at all. In other embodiments, the lower flange can extend partially or fully downward into the lower portion of the upper section. In some embodiments, the lower flange can be configured to form the heel counter. In other embodiments, a heel protector can be partially or fully embedded in the lower flange. The compressible layer 101 can be covered by any type of textile. The textile can be elastic and have absorbent properties. The textile can be shaped to fit the outer shape of the compressible layer. In a preferred embodiment, an adhesive, such as a thermoplastic-based adhesive, is applied to the compressible layer, after which the compressible layer is inserted into an elastic textile sleeve. The resulting product can also be fixed by any means, such as gluing or stitching, according to the desired pattern of the ankle collar 140. The textile can also include thermoplastic material, and after inserting the compressible layer 101 into the textile sleeve, heat can be applied to fuse the textile to the compressible layer 101. In a preferred embodiment, steam can be applied so that the textile conforms to the preformed shape that forms part of the ankle collar and / or the heel counter. In addition to its exemplary construction, the ankle collar 140 is seamless at the top and may have a seam at the bottom where it joins the upper section 16. The seamless ankle collar 140 can extend from the mid-quarter, around the heel, to the lateral quarter. When the user's foot is inserted into the shoe, the user's heel presses the compressible layer 101 against the heel protector. The heel protector maintains the structural integrity of a portion of the heel area of ​​the upper section 16, preventing it from collapsing when the user's heel presses against the compressible layer 101. This allows for easier entry into the shoe without the use of the user's hands or an external shoehorn.Once the user's heel is fully inserted into the shoe, the compressible layer can bounce and exert a force against the back of the user's heel above the calcaneus bone and around parts of the ankle region, which can help provide comfort and secure the user's foot inside the shoe. In addition to its exemplary construction, the cross-section of the seamless upper portion of the ankle collar 140 is substantially round. The ankle collar 140 can be divided into a front portion 142 and a rear portion 144. Both the front and rear portions resemble an approximately circular cross-section or a semicircular cross-section where the radius of the front portion is greater than the radius of the rear portion. See FIGS. 18-19. The compressible layer can be attached directly to the inner structure of the heel counter or by means of the textile sleeve that covers the compressible layer material. Compressible heel counter with heel counter support. In another exemplary embodiment, the heel counter support 96 may partially form an outer layer of the shoe and extends around the heel portion of the upper zone 16 from the mid-quarter of the shoe to the lateral quarter of the shoe, as shown in Figures 20-22. In other embodiments, the heel counter support may further extend along a portion of the quarter, along the entire quarter, or along the entire quarter and into the vamp portion of the shoe. The heel counter support 96 may vary in height in different regions of the shoe. In the exemplary embodiment, the medial and lateral ends of the heel counter support 96 gradually decrease in height towards the base of the upper zone 16 just above the sole 14.The heel counter supports 96 may have a medial region of maximum height on the medial side of the heel portion of the upper zone, and a maximum height on the lateral side of the heel portion of the upper zone. The heel counter support 96 extends at least part of the height of the upper zone 16. In the exemplary embodiment, the height of the medial and lateral sides of the heel portion 98 of the upper zone 16 is approximately 5 cm above the durable surface 116, and the maximum height of the heel counter support 96 on the medial and lateral sides of the heel portion is approximately 3 cm above the durable surface 116. The heel counter support 96 may gradually decrease in height from the region of its maximum height to a region of approximately uniform height along the rear of the heel portion 98 of the upper zone 16.In the exemplary embodiment, the height along the heel portion 98 of the upper zone 16 extends upwards approximately 3 centimeters above the durable surface 116, and the approximately uniform height of the portion forming the rear of the heel counter support 96 is approximately 2 centimeters above the durable surface. The heel counter support 96 may partially form an outer surface of the upper zone 16. The heel counter support 96 may have an inner surface in contact with an outer surface of the heel portion 98 of the upper zone 16. The heel counter support 96 may have a variable thickness from its outer to its inner surface. In the exemplary embodiment, angled strips 102 form thicker portions of the heel counter support 96.The angled strips 102 can provide greater rigidity to the heel buttress support 96 as well as be configured to receive the compressible component 100. In exemplary embodiments, the angled strips 102 have recessed protrusions on the medial and lateral sides of the shoe 12 to which the ends of the compressible component 100 are secured. The compressible component 100 may be a tube, wherein each end of the tube is secured within the recessed protrusions of the angled strips 102. A recessed protrusion of the angled strips 102 may extend partially or completely around the surfaces of the compressible component 100. In the exemplary embodiment, the compressible component 100 may be formed of polyoxymethylene or any other material with similar durability and sufficient rigidity to support the load of a foot and with flexibility to curve from the medial side to the sides of the heel portion of the shoe 12. The central segment 104 of the compressible component 100 may extend behind the ankle opening and over the heel counter of the shoe 12.In the exemplary embodiment, the angled strips 102 can be designed to receive the compressible component 100 at an angle such that the compressible component 100 extends from within the recessed protrusions of the angled strips 102 at a backward tilt A2 toward the rear of the shoe 12. The backward tilt A2 of the compressible component 100 is at approximately 45 degrees with respect to a horizontal ground surface 88. See FIG. 20A. A foam layer 92 extending over the rear of the heel portion 98 of the upper zone 16 at the rear of the heel opening can have a backward tilt A2 that is coextensive with the compressible component 100. The backward tilt A2 of the foam layer 92 can help guide the wearer's foot into the shoe 12 when the shoe is being put on. The central segment 104 of the compressible component 100 can extend behind the rearmost part of the upper zone 16 and can be threaded through one or more guide tunnels 106 in the upper zone 16. In the exemplary embodiment, strips of leather material are sewn to the foam layer 92 and extend above the upper zone at the rear of the heel opening. The ends of the leather strip are sewn together to form guide tunnels 106 through which the compressible component is threaded. When shoe 12 is put on, the user's foot can compress the compressible component 100 and / or the foam layer 92, which is angled backward, downward, and backward from the shoe opening. Once the user's foot is fully inserted into shoe 12, the compressible component 100 and the backward-angled foam layer 92 return to their initial raised positions. The additional inner heel support 114 made of foam material may have sufficient thickness to improve foot support on the Achilles tendon, and once the user puts on shoe 12, the calcaneus bone may be located below the additional inner heel support 114. The inner heel support 114 may have sufficient height to be located above the calcaneus bone once the foot has been inserted into the shoe. In addition to the exemplary embodiment, the shoe may have a heel protector 52 made of a flexible material configured to receive the rear of the heel. In one embodiment, the heel protector is made of a thermoplastic material that provides sufficient support as a heel counter. The internal heel support 114 may be a foam lining to provide the necessary comfort to the user's heel. The following examples correspond to other realizations. According to example 1, a footwear item is provided comprising: an upper area and a sole structure; the upper area defines a shoe opening that receives the foot; a heel protector attached to the upper area and extending from the sole structure to at least a portion of the rear heel collar of the upper area; the heel protector is molded uniformly with an upper, a middle and a lower portion, wherein the upper portion has a smaller mediolateral length than the middle portion, and the middle and lower portions form a concave structure configured to receive the heel; the top part has a first configuration; The upper part is capable of distorting into a second configuration under a user's foot load when the user puts on the shoe; where in the second configuration at least part of the top is lowered compared to the first configuration; The upper part is able to return to the first configuration when the load is removed from the user's foot; The middle part defines a peripheral part and a central part; the peripheral part has a first thickness; and the central part has a second thickness; The second thickness is less than the first thickness. Example 2 may include the elements of Example 1 where the first thickness gradually decreases to the second thickness in a direction extending from the periphery to the center. Example 3 may include the elements of Example 1 where at least a portion of the top and a portion of the bottom have a thickness approximately equal to or greater than the first thickness. Example 4 may include the elements of Example 1 where a lower region of the central part extends outward in a direction away from the shoe opening, causing the shoe opening to widen along the mediolateral direction. Example 5 may include the elements of Example 1 where the top in the first configuration is tilted downwards at a first angle with respect to a vertical line that is normal to a horizontal ground surface and the top in the second configuration is tilted at a second angle, and the second angle is greater than the first angle. Example 6 may include the elements of Example 1 where in the second configuration, an upper region of the central part of the middle part is closer to the front of the footwear item than in the first configuration. Example 7 may include the elements of Example 1, where in the second configuration, the peripheral part of the medial part extends outward along the mediolateral width of the footwear article to a greater extent than in the first configuration. Example 8 may include the elements of Example 1 where the second thickness is at least 1 / 6 of the first thickness. Example 9 may include the elements of Example 1 where the first thickness is no greater than 3.07 mm and the second thickness is at least 0.5 mm. Example 10 may include the elements of Example 1 where an elastic member is located between the heel protector and a front portion of the foot-receiving shoe opening. Example 11 may include the elements of Example 1, further comprising a tongue in which a support member is attached to the tongue and the support member prevents deformation of the tongue when the user puts on the footwear. Example 12 may include the elements of Example 11 where the support member is a connector that connects a part of the tongue to the upper area. Example 13 may include the elements of Example 11, wherein the support member is a rigid member that is at least partially coextensive with the tongue. Example 14 may include the elements of Example 1, wherein a foam component is located on at least one inner surface of the upper and middle portion of the heel protector; the foam component is compressed by the user's heel during foot insertion; and the foam component may exert pressure on the user's ankle once the foot is inserted. Example 15 may include the elements of Example 14 where the foam component extends from both sides of the top of the heel protector along at least a portion of the inner surface of the upper area to form side sections of the foam component. Example 16 may include the elements of example 15 where the foam component decreases in the side parts. Example 17 may include the elements of Example 16 where the rear of the foam component curves inwards and tapers vertically downwards along a concave structure of the heel protector. According to example 18, a footwear item is provided comprising: an upper area and sole structure; the upper area defines a shoe opening that receives the foot; a heel protector attached to the upper area and extending from the sole structure to at least part of the rear heel collar of the upper area; the uniformly molded heel protector with an upper, a middle and a lower portion wherein the upper portion has a smaller mediolateral length than the middle portion, and the middle and lower portions form a concave structure configured to grip the heel; the upper portion has a first configuration; The upper part is capable of distorting into a second configuration under a user's foot load when the user puts on the shoe; The upper part is able to return to the initial configuration when the load is removed from the user's foot; and where The top in the first configuration has a downward slope with a first angle with respect to a vertical line that is normal to a horizontal ground surface; The top part in the second configuration has a slope with a second angle; and the second angle is greater than the first angle; and A lower region of the central part extends outwards in a direction away from the shoe opening, causing the shoe opening to widen along the mediolateral direction. Example 19 may include the elements of Example 18 where the middle part defines a peripheral part and a central part, the peripheral part has a first thickness and the central part has a second thickness; the second thickness is less than the first thickness of the heel protector. According to example 20, an upper area of ​​a footwear article is provided comprising: a foot-receiving shoe opening; a U-shaped foamed ankle collar that is substantially tubular in shape; The ankle collar forms the highest region of the foot-receiving shoe opening; the foamed ankle collar extends at least partially around and over the foot-receiving shoe opening; The ankle collar is capable of being compressed by the user's heel during foot insertion, and the ankle collar can exert pressure on the user's ankle once the foot is inserted; and The ankle collar has a flattened region along its length forming a downward angle from the highest region towards the front of the footwear article. Example 21 may include the elements of Example 20, where the lower part of the ankle collar has a joining piece attached to the upper area. Example 22 may include the elements of Example 20, where the ankle collar is devoid of stitches or seams on one upper portion of the ankle collar. Example 23 may include the elements of Example 20, wherein the cross-sectional shape of the ankle collar has a first part and a second part; the first part is approximately a semicircle with a first radius; the second part is approximately a semicircle with a second radius; and wherein the first radius is greater than the second radius. Example 24 may include the elements of Example 20, which further comprises a heel protector; the heel protector has a first configuration; the heel protector is capable of distorting to a second configuration under a user's foot load when the user puts on the footwear; the heel protector is capable of automatically returning to the first configuration when the user's foot is fully inserted into the footwear; and the ankle collar is located above the heel protector. According to example 25, an upper area of ​​a footwear article is provided comprising: a foot-receiving shoe opening; a U-shaped foamed ankle collar that is substantially tubular in shape; the ankle collar forms the highest region of the foot-receiving shoe opening; the foamed ankle collar extends at least partially around and over the foot-receiving shoe opening; and The ankle collar is capable of being compressed by the user's heel during foot insertion, where the ankle collar can exert pressure on the user's ankle once the foot is inserted; The ankle collar has a flattened region along its length forming a downward angle from the highest region towards the front of the footwear article. Example 26 may include the elements of Example 25, where the lower part of the ankle collar has a joining piece attached to the upper area. Example 27 may include the elements of Example 25, where the ankle collar is devoid of stitches or seams on one upper portion of the ankle collar. Example 28 may include the elements of Example 25, wherein the cross-sectional shape of the ankle collar has a first part and a second part; the first part is approximately a semicircle with a first radius; the second part is approximately a semicircle with a second radius; and wherein the first radius is greater than the second radius. Example 29 may include the elements of Example 25, which further comprises a heel protector; the heel protector has a first configuration; the heel protector is capable of distorting to a second configuration under a user's foot load when the user puts on the footwear; the heel protector is capable of automatically returning to the first configuration when the user's foot is fully inserted into the footwear; and the ankle collar is located above the heel protector. Example 30 may include the elements of Example 25, wherein the heel protector defines a peripheral part and a central part; the peripheral part having a first thickness; the first thickness defining the maximum thickness of the heel protector; the central part having a second thickness; the second thickness defining the minimum thickness of the heel protector; and the first thickness gradually decreases to the second thickness in a direction extending from the peripheral part to the central part. According to example 31, a footwear item is provided comprising: an upper area and a sole structure the upper area defines a shoe opening that receives the foot; a heel counter support located in the upper area and above the sole structure; the heel buttress support has at least two hollow receptacles with backward angles; a compressible component that has two ends; each of the two hollow receptacles receives one end of the compressible component; the compressible component has a first configuration; The compressible component is capable of distorting to a second configuration under a user's foot load when the user puts on the footwear; and The compressible component is able to automatically return to the first configuration when the user's foot is fully inserted into the shoe. Example 32 may include the elements of Example 31, where the heel buttress support defines an outer layer of the upper zone. Example 33 may include the elements of Example 31, where the compressible component is cylindrical. Example 34 may include the elements of Example 31, where the compressible component extends from the medial quarter, above the foot-receiving shoe opening, to the lateral quarter. Example 35 may include the elements of Example 31, where the compressible component extends through a tunnel attached to the upper zone. Although the present invention has been described above with reference to particular embodiments, it should be understood that modifications and variations could be made to the sole structure without departing from the intended scope of the invention.

Claims

1. A shoe (12) comprising: a sole (14); an upper portion (16) forming a shoe opening (48) configured to receive a user's foot; a heel guard (52) made of a flexible material, the heel guard (52) being configured to receive a rear portion of the user's heel; the upper portion (16) comprising elastic material; the heel guard (52) comprising an opening in a rear portion thereof, wherein the elastic material of the upper portion (16) is configured to cover the opening, wherein the tension created by the elastic material of the upper portion (16) when stretched facilitates the retention of the user's foot within the shoe (12); the heel guard (52) comprising an upper portion (64) configured to bend downwards and away from the shoe opening (48) under the load of a user's foot to widen the shoe opening (48) to facilitate the insertion of the foot,wherein the upper portion (64) of the heel protector (52) is configured to return to its uncompressed configuration once the user's foot is inserted into the shoe (12); and wherein the upper portion (16) comprises an inner foam layer (92) extending into the opening of the shoe (48); wherein the foam layer (92) is configured to be compressed by the user's heel during insertion of the user's foot into the shoe (12), and to expand at least partially once the user's foot is inserted into the shoe (12) to enhance the support of the user's foot.

2. The shoe (12) of claim 1, wherein the heel protector (52) comprises: the upper portion (64), a middle portion (58), and a lower portion (54); and wherein the middle portion (58) and the lower portion (54) form a concave structure configured to receive the user's heel.

3. The shoe (12) of claim 1 or 2,wherein the opening is incorporated in a middle portion (58) of the heel protector (52), and preferably in a central region of the middle portion (58) of the heel protector (52).

4. The shoe (12) of any preceding claim, wherein the elastic material of the upper (16) is configured to stretch around the contours of the user's heel.

5. The shoe (12) of any preceding claim, further comprising a heel counter support (96) that partially forms an outer surface of the upper (16), wherein the heel counter support (96) comprises angled strips (102) configured to provide increased rigidity to the heel counter support (96).

6. The shoe (12) of any preceding claim, wherein the angled strips (102) are configured to receive a compressible component (100); wherein, when the user is putting on the shoe (12),The compressible component (100) is configured to be depressed downwards and backwards from the shoe opening (48) by the user's foot; and wherein, when the user's foot is inserted into the shoe (12), the compressible component (100) is configured to return to its initial raised position.

7. The shoe (12) of any preceding claim, wherein the upper (16) comprises an inner layer and an outer layer, and wherein the heel protector (52) is an attachment on an outer surface of the outer layer of the upper (16).

8. The shoe (12) of any preceding claim, further comprising textile material covering the heel protector inside the shoe.

9. The shoe (12) of any preceding claim, further comprising: a tongue (126) with a front lower portion attached directly to the upper (16), and an elastic reinforcement attached to an inner lining of the upper (16).and configured to maintain the position of the tongue (126) when the user puts on the shoe (12); wherein each of the medial and lateral sides of an edge of the tongue (126) or an upper portion of the tongue (126) are attached by an elastic reinforcement to the inner lining of the upper (16) of a medial quarter and a lateral quarter of the upper (16).

10. The shoe (12) of claim 9, wherein at least a portion of the medial and lateral edges of the tongue (126) are directly attached to an inner portion of the upper (16).

11. The shoe (12) of any preceding claim, further comprising elastic regions (78) located on the sides of the upper (16) between the heel protector (52) and a front portion of the shoe opening (48),wherein the elastic regions (78) are configured to allow a rear portion of the heel protector (52) to temporarily shift backward to widen the shoe opening (48) when the user's foot is inserted into the shoe (12).

12. The shoe (12) of any preceding claim, wherein the foam layer (92) is covered by a textile, the textile preferably comprising an elastic textile with absorbent properties.

13. The shoe (12) of any preceding claim, wherein the foam layer (92) is of sufficient thickness to facilitate the support of the user's foot on the user's Achilles tendon.

14. The shoe (12) of any preceding claim, wherein the foam layer (92) tapers along at least a portion of its vertical axis so that its volume is greater in an upper portion of the foam layer,15. The shoe (12) of any preceding claim, wherein the foam layer (92) tapers along its longitudinal direction so that its volume is greater at the rear of a heel counter (32) of the shoe (12) than at the sides of the shoe (12).

16. The shoe (12) of any preceding claim, wherein the foam layer (92) lacks stitching or seams on its upper surface.

17. The shoe (12) of any preceding claim, wherein the foam layer (92) slopes backward toward a rear portion of the shoe (12), the backward slope being configured to assist in guiding the wearer's foot into the shoe (12) when the wearer puts on the shoe (12).

18. The shoe (12) of any preceding claim,wherein the foam layer (92) is bonded to an inner surface of the heel protector (52) to provide cushioning.

19. The shoe (12) of any preceding claim, wherein the shoe (12) is lace-up, further comprising a quarter-reinforcement element and a cheek pad layer to provide structural support to the shoe (12).

20. The shoe (12) of any preceding claim, wherein the heel protector (52) is made of polymeric material, preferably a thermoplastic material and / or an elastomer.

21. The shoe (12) of any preceding claim, wherein the foam layer (92) is composed of at least one of EVA and polyurethane foam.

22. The shoe (12) of any preceding claim, wherein the shoe (12) comprises a heel counter (32) comprising the heel protector (52).

23. The shoe (12) of any preceding claim,wherein an inner wall of the upper part (64) of the heel protector (52) has a convex curvature oriented towards the shoe opening (48).