Patent ID: 8732981
Filing Date: 2014-05-27
Classification: A43B

Abstract:
1. A sole system integrated into a shoe, comprising: a shoe upper, a midsole, an outsole, and an insole; a cam lever integrated into said midsole extending longitudinally curvilinear between said outsole and said insole in a forefoot region of said shoe; the cam lever further comprising a raised ridge configured to correspond to rest forward of the ball of the foot of a wearer, a distal longitudinally extending cam element, and a proximal longitudinally extending cam element; the cam lever having an upper surface, from which said raised ridge extends longitudinally across an entire width of said midsole; the outsole extending longitudinally curvilinear and conformed to deviate from the lower plantar surface of the wearer's foot to form an eccentric surface located at the forefoot region of the shoe, below and distal a plantar center point; wherein said cam lever has a greater density than said midsole; wherein the position of said cam lever in the forefoot region of the shoe causes said midsole to have an increased thickness in the forefoot region with respect to the rest of the midsole; and wherein rotation of said eccentric surface across the ground is transformed into linear motion relative to a fixed point on a dorsal side of the foot; and wherein downward articulation of the wearer's toes against said distal longitudinally extending cam element causes an upward moment force to be applied proximal to said raised ridge.