Mat Structure and Sole Structure

Abstract

A sole structure includes: an anti-skid layer, a rigid layer, an elastic piece and a soft layer which are superimposed upon one another. With the characteristic of the elastic piece being elastically deformable, a rebounding force can be produced to act on the foot to stimulate the ligaments and muscles of the foot, which consequently corrects flatfootedness.

What is claimed is: 
     
         1 . A mat structure for mounting a shoe body, comprising: an anti-skid layer, a rigid layer, an elastic piece and a soft layer which are superimposed upon one another;
 the anti-skid layer being made of anti-skid material;   the rigid layer being attached to one side of the anti-skid layer, one surface of the rigid layer having a wavy shape and including at least one convex portion and at least one concave portion, a surface of the convex portion has an arc-shaped shape, and the concave portion being located between two said convex portions;   the elastic piece is a wavy piece having one surface attached to the surface of the rigid layer, and made of an elastically deformable material, a wavy shape of the elastic piece matching with a shape of the surface of the rigid layer, the elastic piece having a plurality of projections and recesses connected one another, wherein the projections and the recesses are arc-shaped and arranged at intervals, every two said adjacent projections and a corresponding one of the recesses between the every two said adjacent projections together define an accommodating space, the projections are attached to the surface of the convex portions, the recesses are located in the concave portions;   the soft layer having one surface attached to another surface of the elastic piece, wherein the soft layer is disposed in the accommodating spaces and located between two said adjacent projections, and the material of the soft layer is softer than that of the rigid layer; and   an insole layer attached to another surface of the elastic piece, wherein the insole layer covers the elastic piece and the soft layer, the projections directly abut against the insole layer.   
     
     
         2 . The mat structure as claimed in  claim 1 , wherein the anti-skid material is PVC or rubber. 
     
     
         3 . The mat structure as claimed in  claim 1 , wherein the elastic piece includes a top surface and a bottom surface opposite to each other, the bottom surface is attached to surfaces of the convex portions and the concave portions, and the accommodating spaces are located on the top surface. 
     
     
         4 . The mat structure as claimed in  claim 1 , wherein the elastic piece includes a front end and a rear end opposite to each other, an extending direction between the front end and the rear end is a longitudinal direction, the elastic piece includes an inner side and an outer side opposite to each other, an extending direction between the inner side and the outer side is a transverse direction, the projections and the recesses of the elastic piece are arranged in sequence along the longitudinal direction, and the projections and the recesses extend along the transverse direction. 
     
     
         5 . The mat structure as claimed in  claim 4 , wherein distances between the respective adjacent projections are different, the elastic piece includes a forefoot section and a heel section, the forefoot section is closer to the front end than the heel section, the heel section is closer to the rear end than the forefoot section, an arch section is connected between the forefoot section and the heel section, a distance between every two adjacent projections in the forefoot section is a first distance, a distance between every two adjacent projections in the heel section is a second distance, a distance between every two adjacent projections in the arch section is a third distance, and the third distance is greater than the first distance and the second distance. 
     
     
         6 . The sole structure as claimed in  claim 1 , wherein the elastic piece is made of aluminum or titanium, or Chromium Molybdenum Vanadium Steel.