Sole structure for an article of footwear having enhanced roll acceleration
AssigneeUnder Armour, Inc.
InventorsMonibert Narito Gaba, Tom Luedecke, James Webster
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Abstract
A sole structure for an article of footwear includes a transition region between two sole structure layers. The transition region includes a curved portion having a geometry defined by a portion of an ellipse. A plate which includes the curved portion can be provided between the two sole structure layers. The sole structure enhances the roll acceleration of the article of footwear during use.
Claims20
A sole structure comprising a plate, the plate comprising a curved portion having a geometry defined by a portion of an ellipse that is aligned in relation to the sole structure such that a major axis of the ellipse is tilted at an angle T from a support surface that supports the sole structure, wherein the angle T is from about 2 degrees to about 10 degrees, and the ellipse has an aspect ratio from about 1.1 to about 1.9.
A sole structure for an article of footwear comprising a first layer, a second layer, and a plate disposed between the first layer and the second layer, the plate comprising a curved portion having a geometry defined by a portion of an ellipse, wherein the first layer comprises a first supercritical (SC) foam material, and the second layer comprises a second SC foam material, and the second layer defines an exposed bottom side of the sole structure configured to engage with a ground surface during use of the article of footwear.
A sole structure configured to affect roll acceleration along a heel-to-toe strike direction, the sole structure comprising:
- a first midsole portion;
- a second midsole portion;
- and
- a plate positioned between the first midsole and the second midsole, wherein the plate comprises a curved portion operable to generate forward rocker motion during a gait cycle.
Dependencies are inferred from the claim text.