Sole structure and the manufacturing method thereof

Abstract

The disclosed sole structure of the present invention comprises a first sole layer, a second sole layer and spikes. The first sole layer has an upper surface and a lower surface, a plurality of openings penetrating the upper surface. The spikes arrange at a side close to the lower surface and correspond to the openings. Each of the spikes has a gap with the corresponding opening. The second sole layer envelops the first sole layer. Wherein a portion of the second layer is attached to the upper surface, and another portion of the second sole layer is attached to the lower surface, and the second sole layer located to a side of the lower surface extends into the openings and connects to the spike.

What is claimed is: 
     
         1 . A sole structure, comprising:
 a first sole layer having an upper surface and a lower surface, a plurality of openings penetrating the upper surface;   a plurality of spikes arranged at a side close to the lower surface corresponding to the openings, each of the spikes having a gap with the corresponding opening; and   a second sole layer enveloping the first sole layer;   wherein a portion of the second sole layer is attached to the upper surface, and another portion of the second sole layer is attached to the lower surface, and the second sole layer located to a side of the lower surface extends into the openings and is connected to the spikes.   
     
     
         2 . The sole structure of  claim 1 , wherein the first sole layer has a plurality of tubular walls respectively surrounding peripheries of the openings and extending to the side of the lower surface, an end of the tubular wall away from the openings contracts toward to a center of the opening, and the second sole layer envelops the tubular walls 
     
     
         3 . The sole structure of  claim 2 , wherein the gap is located between an end of the tubular walls away from the lower surface and the spikes. 
     
     
         4 . The sole structure of  claim 1 , wherein the first sole layer is a hard-fiber sole layer, and the second sole layer is a thermoplastic-elastic sole layer. 
     
     
         5 . The sole structure of  claim 1 , wherein the second sole layer and the spikes are identical in material. 
     
     
         6 . The sole structure of  claim 1 , wherein the first sole layer is a carbon-fiber sole layer, and the second sole layer is a thermoplastic polyurethane sole layer. 
     
     
         7 . A method for manufacturing a sole structure by a mold, comprising:
 forming a plurality of spikes in the mold;   arranging a first sole layer in the mold, the first sole layer having an upper surface and a lower surface, a plurality of openings penetrating the upper surface, the spikes arranged at a side close to the lower surface corresponding to the openings, each of the spikes having a gap with the corresponding opening; and   dispensing an uncured second sole layer in the mold;   wherein a portion of the second sole layer is attached to the upper surface, and another portion of the second sole layer is attached to the lower surface, and a side of the second sole layer located on the lower surface extends to the openings and is connected to the spikes.   
     
     
         8 . The method for manufacturing a sole structure of  claim 7 , wherein the first sole layer has a plurality of tubular walls respectively surrounding peripheries of the openings and extending to a side of the lower surface, an end of the tubular walls away from the openings contracts toward to a center of the opening, and the second sole layer envelops the tubular walls. 
     
     
         9 . The method for manufacturing a sole structure of  claim 8 , wherein the gap is located between an end of the tubular wall away from the lower surface and the spikes. 
     
     
         10 . The method for manufacturing a sole structure of  claim 7 , wherein the first sole layer is a hard-fiber sole layer, and the second sole layer is a thermoplastic-elastic sole layer. 
     
     
         11 . The method for manufacturing a sole structure of  claim 7 , wherein the second sole layer and the spikes are identical in material. 
     
     
         12 . The method for manufacturing a sole structure of  claim 7 , wherein the first sole layer is a carbon-fiber sole layer, and the second sole layer is a thermoplastic polyurethane sole layer.