Footwear heel counter for easier foot entry or removal
The shoe includes a sole and an upper including a layer of elastic material positioned to stretch and create tension that enhances securement of a foot inserted into the shoe. The shoe includes a heel cup having polymer material, affixed to the sole and upper, and having an upper portion, a midportion, and a lower portion. In a first configuration, the upper portion has a downward incline with a first angle relative to a vertical line, and the upper portion is capable of distorting into a second configuration under a load of the foot when donning the shoe. In the second configuration, the upper portion has a downward incline with a second angle relative to the vertical line, the second angle being greater than the first angle. An interior foam layer is adjacent to an interior wall of the upper portion, is compressible, and extends into the shoe opening.
1. A shoe, comprising:
a sole;
an upper, including at least one layer of elastic material positioned to stretch and create tension that enhances securement of a foot inserted into the shoe;
a heel cup, comprised of polymer material, affixed to the upper,
wherein the heel cup comprises an upper portion, a midportion, and a lower portion,
wherein, in a first configuration, the upper portion of the heel cup has a downward incline with a first angle relative to a vertical line that is normal to a horizontal surface of a floor;
the upper portion is capable of distorting into a second configuration under a load of the foot when donning the shoe, wherein in the second configuration the upper portion has a downward incline with a second angle relative to the vertical line,
the second angle being greater than the first angle;
an interior foam layer adjacent to at least an interior wall of the upper portion of the heel cup,
wherein the interior foam layer is compressible,
wherein the interior foam layer extends into a shoe opening, providing securement of the foot once inserted; and
wherein the heel cup includes at least one reduced thickness region providing flexibility to the heel cup when donning or removing the shoe.
2. The shoe of claim 1 , wherein the interior foam layer is positioned to extend around portions of an ankle region of the foot.
3. The shoe of claim 1 , wherein a vertical cross-sectional shape of a rearmost portion of the heel cup comprises an S-wave.
4. The shoe of claim 1 , wherein a profile of the heel cup has a pear-like shape.
5. The shoe of claim 1 , wherein the at least one reduced thickness region comprises a plurality of reduced thickness regions oriented in a vertical direction at a rearmost portion of the heel cup.
6. The shoe of claim 1 , wherein the at least one reduced thickness region is positioned at a rearmost portion of the heel cup, with at least one thicker adjacent region.
7. The shoe of claim 6 , wherein the at least one thicker adjacent region is vertically displaced relative to the at least one reduced thickness region.
8. The shoe of claim 6 , wherein the at least one thicker adjacent region is horizontally displaced relative to the at least one reduced thickness region.
9. The shoe of claim 6 , wherein the at least one thicker adjacent region comprises at least one vertically displaced thicker adjacent region and at least one horizontally displaced thicker adjacent region.
10. The shoe of claim 1 , wherein the polymer material comprises a thermoplastic.
11. The shoe of claim 1 , wherein the polymer material comprises an elastomer.
12. The shoe of claim 1 , further comprising:
at least one fabric material covering the heel cup and extending above the heel cup to form an extension of a heel collar.
13. The shoe of claim 1 , wherein the at least one layer of elastic material is positioned on at least one of a medial and a lateral side of the upper.
14. The shoe of claim 1 , wherein the heel cup is attached to an inner lining of the upper.
15. The shoe of claim 1 , wherein the upper portion of the heel cup is configured to be lowered and extended backward away from the foot when donning the shoe.
16. The shoe of claim 1 , further comprising:
at least one outer foam layer adjacent to an outer wall of the heel cup.
17. The shoe of claim 16 , wherein the outer foam layer is thinner than the interior foam layer.
18. The shoe of claim 1 , wherein the interior foam layer is bonded to the interior wall of the upper portion of the heel cup.
19. The shoe of claim 1 , wherein the interior foam layer is also adjacent to a midportion interior wall of the heel cup and a lower portion interior wall of the heel cup, and
a portion of the interior foam layer that is adjacent to the interior wall of the upper portion is thicker than portions adjacent to the midportion interior wall and the lower portion interior wall.
20. The shoe of claim 1 , wherein the interior foam layer is comprised of at least one of EVA and polyurethane foam.
21. The shoe of claim 1 , wherein the interior foam layer is covered by an elastic textile having wicking properties.
22. The shoe of claim 21 , wherein the elastic textile is form fitted to the shape of the interior foam layer.
23. A shoe, comprising:
a sole;
an upper, including at least a portion comprising elastic material positioned to stretch and create tension that enhances securement of a foot inserted into the shoe;
a heel cup, comprised of polymer material, affixed to the sole and attached to an inner lining of the upper,
wherein the heel cup comprises an upper portion, a midportion, and a lower portion,
a vertical cross-sectional shape of a rearmost portion of the heel cup comprising an S-wave,
along the vertical cross-sectional shape, the heel cup including at least one reduced thickness region at a rearmost portion of the heel cup, at least one upper thicker adjacent region oriented vertically above the at least one reduced thickness region, and at least one lower thicker adjacent region oriented vertically below the at least one reduced thickness region;
an interior foam layer adjacent to at least an interior wall of the upper portion of the heel cup,
wherein the interior foam layer is compressible,
wherein the interior foam layer extends into a shoe opening, providing securement of the foot once inserted,
the interior foam layer being covered by an elastic textile having wicking properties, and wherein the elastic textile is form fitted to the shape of the interior foam layer.
24. A shoe, comprising:
a sole;
an upper, including at least one layer of elastic material positioned to stretch and create tension that enhances securement of a foot inserted into the shoe;
a heel cup, comprised of polymer material, affixed to the sole and upper,
wherein the heel cup comprises an upper portion, a midportion, and a lower portion,
wherein, in a first configuration, the upper portion of the heel cup has a downward incline with a first angle relative to a vertical line that is normal to a horizontal surface of a floor;
the upper portion is capable of distorting into a second configuration under a load of the foot when donning the shoe, wherein in the second configuration the upper portion has a downward incline with a second angle relative to the vertical line,
the second angle being greater than the first angle;
an interior foam layer adjacent to at least an interior wall of the upper portion of the heel cup,
wherein the interior foam layer is compressible,
wherein the interior foam layer extends into a shoe opening, providing securement of the foot once inserted; and
wherein the heel cup includes a plurality of enhanced thickness regions oriented in a vertical direction at a rearmost portion of the heel cup.
25. A shoe, comprising:
a sole;
an upper, including at least one layer of elastic material positioned to stretch and create tension that enhances securement of a foot inserted into the shoe;
a heel cup, comprised of polymer material, affixed to the sole and upper,
wherein the heel cup comprises an upper portion, a midportion, and a lower portion,
wherein, in a first configuration, the upper portion of the heel cup has a downward incline with a first angle relative to a vertical line that is normal to a horizontal surface of a floor;
the upper portion is capable of distorting into a second configuration under a load of the foot when donning the shoe, wherein in the second configuration the upper portion has a downward incline with a second angle relative to the vertical line,
the second angle being greater than the first angle;
an interior foam layer adjacent to at least an interior wall of the upper portion of the heel cup,
wherein the interior foam layer is compressible,
wherein the interior foam layer extends into a shoe opening, providing securement of the foot once inserted; and
wherein the heel cup includes a plurality of enhanced flexibility regions oriented vertically along a rearmost portion of the heel cup.
26. The shoe of claim 25 , wherein the plurality of enhanced flexibility regions is configured to facilitate compression of the heel cup under load of the foot during donning of the shoe to widen the shoe opening and allow for the donning of the shoe without use of a wearer's hands.