Article of apparel with dynamic and lock-out regions
An article of apparel includes a base layer defined by a Poisson's ratio, and a polymer structure coupled to the base layer. The polymer structure is configured to lower the Poisson's ratio of the base layer. The polymer structure includes a plurality of interconnected members forming an array of cell units. The plurality of interconnected members form cell walls with interior recesses defined within the cell walls.
1. An article of apparel comprising:
a base layer; and
an outer layer coupled to the base layer, the outer layer comprising a repeating pattern of shapes defined by interconnected perimeter walls and interior recesses, wherein the interconnected perimeter walls and interior recesses define at least one first region and at least one second region on the outer layer, wherein each interior recess in the first region provides a void exposing the base layer, wherein each interior recess in the second region is at least partially filled with a recess material that covers the base layer such that the second region is less easily deformed than the first region, and wherein the first region of the outer layer has a Poisson's ratio of substantially zero or less than zero.
2. The article of apparel of claim 1 wherein the base layer is a four way stretch material.
3. The article of apparel of claim 1 wherein the recess material is unitary in composition with the perimeter walls.
4. The article of apparel of claim 1 wherein the article of apparel is an article of footwear.
5. The article of apparel of claim 1 wherein the perimeter walls include a top surface and an opposite bottom surface, wherein the bottom surface faces the base layer, and wherein the recess material covers the base layer in each interior recess of the second region without extending to the top surface of the perimeter walls.
6. The article of apparel of claim 1 wherein the perimeter walls of the outer layer form a repeating pattern of reentrant polygonal shapes.
7. An article of apparel comprising:
a base layer defined by a Poisson's ratio, wherein the base layer is a four way stretch fabric material; and
a polymer structure coupled to the base layer and configured to lower the Poisson's ratio of the base layer, the polymer structure including a plurality of interconnected members forming an array of cell units, the plurality of interconnected members forming cell walls of the cell units with interior recesses defined within the cell walls.
8. The article of apparel of claim 7 wherein the array of cell units include at least one first region wherein each interior recess of the first region exposes the base layer and at least one second region wherein a fill in each interior recess of the second region covers the base layer.
9. The article of apparel of claim 8 wherein the article of apparel is an article of footwear including an upper and a sole.
10. The article of apparel of claim 9 wherein the second region is provided in a toe region of the upper and a transition region of the upper extending along a perimeter of the sole.
11. The article of apparel of claim 7 wherein the interconnected members of the polymer structure comprise a plurality of wall segments that form a repeating pattern of reentrant polygonal shapes.
12. The article of apparel of claim 7 wherein the polymer structure is defined by a Poisson's ratio of substantially zero or less than zero.
13. A functional laminate for an article of apparel, the functional laminate comprising:
a textile layer possessing a first expansion pattern defined by a first Poisson's ratio; and
a polymer layer connected to the textile layer and possessing a second expansion pattern defined by a second Poisson's ratio that is less than the first Poisson's ratio, the polymer layer including a structure defined by a repeating pattern of shapes;
wherein the textile layer and the polymer layer are configured such that,
when a load is applied to the functional laminate, the second expansion pattern of the polymer layer dominates the first expansion pattern of the textile layer to drive expansion of the functional laminate; and
when the load is removed from the functional laminate, the first expansion pattern of the textile layer dominates the second expansion pattern of the polymer layer to drive retraction of the functional laminate.
14. The functional laminate of claim 13 wherein the polymer layer includes plurality of interconnected segments forming the repeating pattern of shapes, and wherein an interior recess is provided within each shape.
15. The functional laminate of claim 14 wherein the polymer layer includes a first region and a second region, wherein each interior recess in the first region provides a void exposing the textile layer, and wherein each interior recess in the second region is at least partially filled with a recess material that covers the textile layer.
16. The functional laminate of claim 14 wherein the repeating pattern of shapes is a repeating pattern of polygonal reentrant shapes and the second Poisson's ratio is substantially zero or less than zero.
17. The functional laminate of claim 13 wherein the textile layer comprises a four way stretch material.
18. The functional laminate of claim 13 wherein the second Poisson's ratio is substantially zero or less than zero.
19. The functional laminate of claim 15 wherein the recess material is unitary in composition with the interconnected segments forming the repeating pattern of shapes.
20. The article of apparel of claim 8 wherein the fill is unitary in composition with the interconnected members.