Patent ID: 6763615
Filing Date: 2004-07-20
Classification: A43B

Abstract:
A shoe sole comprising:an outer sole having a tread face and divided by an arch portion into a forefoot portion and a rear foot portion which are spaced from each other; a midsole formed on top of the outer sole over the forefoot portion, the arch portion, and the rear foot portion; and a reinforcement device, made of a resin plate, fixed firmly to a first bottom face of the arch portion of the midsole, wherein the reinforcement device has a second bottom face, which is apart from a ground between the forefoot portion and the rear foot portion of the outer sole, whereby the second bottom face, together with the ground, forms a hollow, extending through from a medial side of a foot to a lateral side of the foot between the forefoot portion and the rear foot portion of the outer sole, and wherein thickness in a medial side portion of the foot of the reinforcement device is established to be greater than that in a lateral side portion of the foot of the reinforcement device so that flexural rigidity in the medial side portion of the foot of the reinforcement device is higher than that in the lateral side portion of the foot of the reinforcement.