FOOT SUPPORT SYSTEMS INCLUDING TILTABLE FOREFOOT COMPONENTS

Sole structures (104) and articles of footwear (100, 800, 1400) includes a first footwear component (400, 802) including a ground-facing surface (400G, 802G), wherein a forefoot portion of the ground-facing surface (400G, 802G) includes: (a) an arched medial surface (400GM) arching downward from a medial side edge of the sole structure (804) toward a central region (400GC) of the first footwear component (400, 802), and (b) an arched lateral surface (400GL) arching downward from a lateral side edge of the sole structure (104) toward the central region (400GC) of the first footwear component (400, 802). This first footwear component (400, 802) includes one of a first track (402T, 1710T, 2000T) or a first channel (902T, 1710C). The sole structure (104) further includes a second footwear component (500, 1000) including an upper-facing surface (500U). A forefoot portion of this upper-facing surface (500U) includes: (a) an arched medial surface (500UM) arching downward from a medial side edge of the second footwear component (500, 1000) toward a central region (500UC) of the second footwear component (500, 1000) and facing the arched medial surface (400GM) of the first footwear component (400, 802), and (b) an arched lateral surface (500UL) arching downward from a lateral side edge of the second footwear component (500, 1000) toward the central region (500UC) of the second footwear component (500, 1000) and facing the arched lateral surface (400GL) of the first footwear component (400, 802). The second footwear component (500, 1000) includes the other of the first track (1002T) or the first channel (500T, 1810C, 1810X, 2000C). When assembled, the first track (402T, 1710T, 2000T, 1002T) engages the first channel (902T, 1710C, 500T, 1810C, 1810X, 2000C) and the first footwear component (400, 802) is movably engaged with the second footwear component (500, 1000) by movement of the first channel (902T, 1710C, 500T, 1810C, 1810X, 2000C) with respect to the first track (402T, 1710T, 2000T, 1002T). La présente invention concerne des structures de semelle (104) et des articles chaussants (100, 800, 1400) comprenant un premier composant de chaussure (400, 802) comprenant une surface tournée vers le sol (400G, 802G), une partie d'avant-pied de la surface tournée vers le sol (400G, 802G) comprenant : (a) une surface médiane arquée (400 GM) s'étendant vers le bas à partir d'un bord latéral médian de la structure de semelle (804) vers une région centrale (400 GC) du premier