초록 ▼

An article of footwear may include an outer member that has a first ground engaging member extending downward from the outer surface of an outer member. Ground engaging members, or cleats, may be auxetic structures that can increase their dimensions in a direction that is orthogonal to the direction

An article of footwear may include an outer member that has a first ground engaging member extending downward from the outer surface of an outer member. Ground engaging members, or cleats, may be auxetic structures that can increase their dimensions in a direction that is orthogonal to the direction of applied force or tension. Ground engaging member shapes may include various polygonal features. The first ground engaging member may have a three-pointed star-shaped pyramidal structure. The outer member may have an inner surface with apertures that correspond with the ground engaging members of the outer surface.

대표청구항 ▼

1. A sole structure for an article of footwear, the sole structure comprising: an outer member comprising a base portion and a plurality of ground engaging members extending away from the base portion, wherein each of the ground engaging members is hollow and defines a three-pointed star shaped aper

1. A sole structure for an article of footwear, the sole structure comprising: an outer member comprising a base portion and a plurality of ground engaging members extending away from the base portion, wherein each of the ground engaging members is hollow and defines a three-pointed star shaped aperture at an upper surface of the base portion, and wherein the base portion defines a plurality of triangular-shaped outer member areas, each triangular-shaped outer member area being disposed between adjacent ground engaging members;wherein each of the plurality of ground engaging members comprises six faces joined at a common apex point located outward from the base portion on an outer side of the outer member;wherein the arrangement of the plurality of ground engaging members across the outer member provides the outer member with an auxetic property such that when a tensile force is applied to the outer member in a first direction, the outer member expands in both the first direction and in a second direction that is orthogonal to the first direction. 2. The sole structure according to claim 1, wherein the six faces include a first face, a second face, a third face, a fourth face, a fifth face and a sixth face and wherein each face has an approximately triangular shape; and wherein the first face is joined to the second face along a first hinge portion, wherein the second face is joined to the third face along a second hinge portion, wherein the third face is joined to the fourth face along a third hinge portion, wherein the fourth face is joined to the fifth face along a fourth hinge portion, wherein the fifth face is joined to the sixth face along a fifth hinge portion and wherein the sixth face is joined to the first face along a sixth hinge portion;wherein the first, third, and fifth hinge portions each intersect with a vertex of a respective three-pointed star shaped aperture, and wherein each of the second, fourth, and sixth hinge portions rotate radially outward when the tensile force is applied to the outer member. 3. A sole structure for an article of footwear, the sole structure comprising: an outer member comprising a base portion and a plurality of ground engaging members extending away from the base portion, wherein each of the ground engaging members is hollow and defines a three-pointed star shaped aperture extending through the base portion, and wherein the base portion defines a plurality of triangular-shaped outer member areas, each triangular-shaped outer member area disposed between adjacent ground engaging members;each of the ground engaging members comprising a plurality of faces extending from the base portion, wherein each of the plurality of faces are joined at an apex of the respective ground engaging member;each of the ground engaging members having a substantially three-pointed cross-sectional shape in a horizontal plane;each of the ground engaging members including three arms, each of the three arms including two faces of the plurality of faces wherein for each of the ground engaging members: the three arms comprising a first arm, a second arm, and a third arm, each of the three arms radiating outward from a central region of the respective ground engaging member, the central region having a substantially triangular shape in the horizontal plane;the first arm portion comprising a substantially elongated shape extending outward from the central region;each of the arm portions being substantially similar in shape and size;the first arm portion having a first width and a second width, the first width being nearer to the central region than the second width, the first width being larger than the second width; andwherein the ground engaging member includes a hollow interior portion bounded by the plurality of faces to permit the plurality of faces to rotate relative to each other in response to an applied force, and wherein the arrangement of the plurality of ground engaging members across the base portion provides an auxetic property to the outer member such that when a tensile force is applied to the outer member in a first direction, the outer member expands in both the first direction and in a second direction that is orthogonal to the first direction. 4. The sole structure according to claim 3, wherein the first arm portion and the second arm portion form a first angle, and wherein the first angle increases in magnitude when a compressive force is applied to the ground engaging member. 5. The sole structure according to claim 3, wherein the apex is thicker than the base portion. 6. The sole structure according to claim 3, wherein each face of the plurality of faces is substantially flat. 7. The sole structure according to claim 3, wherein each face of the plurality of faces has an approximately triangular geometry. 8. The sole structure according to claim 4, wherein the second arm portion and the third arm portion form a second angle, and wherein the first angle is substantially similar to the second angle.