Articles and Methods of Manufacture of Articles

Abstract

Various articles, such as footwear, apparel, athletic equipment, watchbands, and the like, and methods of forming those articles are presented. The articles are generally formed, in whole or in part, using rapid manufacturing techniques, such as laser sintering, stereolithography, solid deposition modeling, and the like. The use of rapid manufacturing allows for relatively economical and time efficient manufacture of customized articles. The articles may include one or more reinforcements configured to provide added durability to various regions of the articles. In addition, the articles may be formed from two or more materials in a single rapid manufacturing process. The rapid manufacturing additive fabrication technique may also include using of varying intensities of the laser to fuse material to form the articles.

We claim: 
     
         1 . An article of footwear, comprising:
 an upper configured to receive a foot of a wearer;   a sole structure, connected to the upper and including:
 an outsole configured to contact a surface, and 
 a midsole, the midsole including a plurality of apertures formed in a top surface; and 
 an insole, the insole being configured to mate with the midsole and including a plurality of projections configured to correspond to the apertures formed in the midsole; 
   wherein the midsole and insole are formed using a rapid manufacturing additive fabrication technique.   
     
     
         2 . The article of footwear of  claim 1 , wherein the upper is formed using a rapid manufacturing additive fabrication technique. 
     
     
         3 . The article of footwear of  claim 1 , wherein the apertures extend partially through the midsole. 
     
     
         4 . The article of footwear of  claim 1 , wherein the apertures extend through the midsole from a top surface to a bottom surface of the midsole. 
     
     
         5 . The article of footwear of  claim 1 , wherein the apertures and projections are configured to provide impact attenuation. 
     
     
         6 . The article of footwear of  claim 1 , wherein the configuration of the apertures and projections is based on specifications of a user's foot. 
     
     
         7 . The article of footwear of  claim 1 , wherein the size of the apertures and projections is based on specifications of a user's foot. 
     
     
         8 . The article of footwear of  claim 1 , wherein the upper further includes at least one reinforcement portion. 
     
     
         9 . The article of footwear of  claim 8 , wherein the at least one reinforcement portion is located in a toe region of the upper. 
     
     
         10 . The article of footwear of  claim 8 , wherein the at least one reinforcement portion is located in a collar region of the upper. 
     
     
         11 . The article of footwear of  claim 8 , wherein the at least one reinforcement portion is located in an eyelet region of the upper. 
     
     
         12 . The article of footwear of  claim 8 , wherein the reinforcement portion is formed using a non-rapid manufacturing additive fabrication technique. 
     
     
         13 . The article of footwear of  claim 8 , wherein the reinforcement portion is formed using a rapid manufacturing additive fabrication technique.