Shoe and method for the construction thereof

Abstract

Shoe comprising a sole and at least a part of an upper leather fastened to the sole, distinctive in that the shoe is constructed or adapted so that the resultant force vertically up from the base during walking, in the main, moves along a certain line or path, called SGL (sensory gait line) as the line, for the right foot seen from above, starts from the back, tilting from the outside at the setting down of the heel, the line goes forwards and turns outwards so that it goes under the middle of the calcaneus (heel bone), from where the line further forwards has a shape as an extended S that runs out between the first and the second toe.

1 . A shoe comprising:
 a sole and at least a part of an upper leather fastened to the sole;   wherein the shoe is constructed or adapted so that a resultant force vertically up from a base during walking is, in the main, displaced along a fixed line, designated SGL (sensory gait line), as the line, for the right foot seen from above starts at the back tilted from the outside on the setting down of the heel, the line goes forwards and turns outwards so that it goes below the middle of the calcaneus (the heel bone) from where the line further forwards has the shape of an extended S that goes out between the first and the second toe.   
     
     
         2 . The shoe according to  claim 1 , wherein the shoe is constructed or adapted so that the resultant force vertically up from the base during walking is, in the main, displaced along a fixed line, designated SGL (sensory gait line), as the line, for the right foot seen from above, starts at the back tilted typically 40°±10°, from the outside at the setting down of the heel, the line turns laterally outwards while it goes forwards so that it, in the main, goes straight forwards under the middle of the heel bone calcaneus (heel bone), from where the line continues forwards to under the middle of the cuboid, from where the line continues forwards first turning medially inwards and thereafter forwards so that the line goes to under the outer part of the second metatarsal (second intermediate foot bone), below the inside of the outer end thereof, from where the line goes further forwards between the first and the second toe bone, along the inside of the second toe bone so that the line SGL from the middle under the cuboid and further forwards has a shape as an extended S and with a lateral swing outwards back to the heel set. 
     
     
         3 . The shoe according to  claim 1 , wherein the line SGL from under the middle of the cuboid runs further forwards to the area between the basis of the third and the fourth metatarsal, from where the SGL goes forwards and swings medially to between the first and the second basal joints and turns further forwards till it ends as the SGL runs out between the first and the second toe. 
     
     
         4 . The shoe according to  claim 1 , wherein the shoe is constructed or adapted so that the sole, upper part and any insole as put together provide support so that the foot during walking tilts round the line SGL so that the pressure centre goes down through the SGL, which is achieved by adapting features chosen amongst elasticity and density, height, supporting points and supporting zones, shape of the lower longitudinal rim or edge of the sole and the concave curvature in the direction across the, sole and/or insole, and also support points or support zones in the heel cap and also the upper part. 
     
     
         5 . The shoe according to  claim 1 , wherein the sole of the shoe in the longitudinal direction is convex against the base. 
     
     
         6 . The shoe according to  claim 1 , wherein the sole of the shoe is concave in the transverse direction against the base, and that the outer longitudinally running edges have a variable height that controls the weight along the SGL when walking, preferably the sole as seen from behind of the right foot is turned clockwise in the heel and the intermediate foot area, i.e. higher, possible stiffer, on the inside, medially for the SGL, but, in the main, plane in the front foot area. 
     
     
         7 . The shoe according to  claim 1 , wherein the upper or inner sole of the shoe lies against the sole of the foot on both sides of the SGL, to better activate and stimulate the sensory system in the sole of the foot. 
     
     
         8 . The shoe according to  claim 1 , wherein the shoe has an instability in the tilting about the line SGL so that muscles on both the outside and the inside of the foot are activated and exercised, the instability is preferably generated by the intermediate sole being softer and more elastic than the lower parts of the sole which provides the correct tilting about the SGL. 
     
     
         9 . The shoe according to  claim 1 , wherein the sole of the shoe has an increased elasticity module or rigidity against being pressed together for harder application. 
     
     
         10 . A method for manufacture of a shoe according to  claim 1 , comprising:
 adapting the stiffness or elasticity of compression and/or height of the sole construction on both sides of the line SGL so that the centre of the pressure from the foot during walking is displaced or moved along the line SGL.