Shoes with orthotic arch support

Abstract

The present disclosure is directed to the formation of the curvature of an orthotic arch support inclined shoe, such as a sneaker or a high-heeled shoe, using a shoe last. A shoe last includes a heel height and a sole having an arch. The arch is defined by an inner arch, a middle arch, and a lateral arch. The middle arch is defined by a first formula and lateral and inner arches are defined by a second formula. In particular, the shoes and shoe lasts of the present disclosure preserve the healthy, stable positioning of individuals with normal arches, and convert the pronation, or supination positioning of individuals with flat feet or high arches to a stable position afforded by normal arches. This allows a comfortable gait in a natural anatomical position and balances the weight center of the body.

1 . A shoe last, comprising:
 a heel height; and   a sole having an arch, the arch defined by an inner arch, a middle arch, and a lateral arch, the middle arch defined by the formula f(x)=(T/150)*(p1*x̂2+p2*x+p3), the lateral and inner arches defined by the formula f(x)=(T/140)*(p1*x̂2+p2*x+p3),   wherein variable x provides alignment of an inflection peak point of a respective one of the arches based upon the heel height,   wherein T is an arch length, and   wherein p1=−0.01408, p2=0.09223, and p3=7.537.   
     
     
         2 . The shoe last of  claim 1 , wherein the shoe last is configured for a high-heeled shoe. 
     
     
         3 . The shoe last of  claim 1 , wherein the shoe last is configured for a sneaker. 
     
     
         4 . A shoe formed of the shoe last of  claim 1 . 
     
     
         5 . A high-heeled shoe formed from the shoe last of  claim 1 . 
     
     
         6 . A sneaker formed from the shoe last of  claim 1 . 
     
     
         7 . A shoe last, comprising:
 a heel height; and   a sole having an arch, the arch defined by an inner arch, a middle arch, and a lateral arch, wherein the middle arch is defined by a first formula and the lateral and inner arches are defined by a second formula different than the first formula.   
     
     
         8 . A shoe formed with the shoe last of  claim 7 . 
     
     
         9 . The shoe last of  claim 7 , wherein the first formula is f(x)=(T/150)*(p1*x̂2+p2*x+p3), wherein variable x provides horizontal alignment of an inflection peak point of a respective one of the arches based upon the heel height,
 wherein T is an arch length, and 
 wherein p1, p2, and p3 are different coefficients. 
 
     
     
         10 . The shoe last of  claim 9 , wherein the second formula is f(x)=(T/140)*(p1*x̂2+p2*x+p3). 
     
     
         11 . The shoe last of  claim 10 , wherein p1 equals −0.01408. 
     
     
         12 . The shoe last of  claim 11 , wherein p2 equals 0.09223. 
     
     
         13 . The shoe last of  claim 12 , wherein p3 equals 7.537. 
     
     
         14 . A shoe last, comprising:
 a heel height; and   a sole having an arch, the arch defined by an inner arch, a middle arch, and a lateral arch, wherein the middle arch is defined by a first formula and at least one of the lateral and inner arches is defined by a second formula different than the first formula.   
     
     
         15 . A shoe formed with the shoe last of  claim 14 . 
     
     
         16 . The shoe last of  claim 14 , wherein the first formula is f(x)=(T/150)*(p1*x̂2+p2*x+p3), wherein variable x provides horizontal alignment of an inflection peak point of a respective one of the arches based upon the heel height,
 wherein T is an arch length, and 
 wherein p1, p2, and p3 are different coefficients. 
 
     
     
         17 . The shoe last of  claim 16 , wherein the second formula is f(x)=(T/140)*(p1*x̂2+p2*x+p3). 
     
     
         18 . The shoe last of  claim 17 , wherein p1 equals −0.01408. 
     
     
         19 . The shoe last of  claim 18 , wherein p2 equals 0.09223. 
     
     
         20 . The shoe last of  claim 19 , wherein p3 equals 7.537.