Shoe sole having insole and midsole forming mated air chambers

Abstract

A shoe sole includes a bottom, an insole, and a midsole. The insole forms a plurality of air passages extending therethrough, and has a bottom face on which a plurality of first raised sections is formed to delimit a plurality of first air chambers. The midsole is positioned between the insole and the bottom and has a top face opposing the bottom face of the insole and forming a plurality of second raised sections that delimits a plurality of second air chambers, the second raised sections being configured to correspond in position to the first raised sections so that when the midsole is stacked on the insole, the first raised sections are respectively positioned on the second raised sections and the first air chambers respectively correspond to the second air chambers to form combine air chambers that each have an increased volume.

1 . A shoe sole comprising a bottom, an insole, and a midsole, wherein:
 the insole forms a plurality of air passages extending therethrough, and has a bottom face on which a plurality of first raised sections is formed to delimit a plurality of first air chambers; and   the midsole is positioned between the insole and the bottom and has a top face opposing the bottom face of the insole and forming a plurality of second raised sections that delimits a plurality of second air chambers, the second raised sections being configured to correspond in position to the first raised sections so that when the midsole is stacked on the insole, the first raised sections are respectively positioned on the second raised sections and the first air chambers respectively correspond to the second air chambers to form combined air chambers that each have an increased volume.   
   
   
       2 . The shoe sole as claimed in  claim 1  further comprising an air-permeable and humidity-blocking film interposed between the insole and the midsole. 
   
   
       3 . The shoe sole as claimed in  claim 1 , wherein the midsole has an outer circumference through which first channels are formed, the first channels being arranged in alignment with through holes defined in the bottom respectively. 
   
   
       4 . The shoe sole as claimed in  claim 1 , wherein the midsole is integrally formed with the bottom. 
   
   
       5 . The shoe sole as claimed in  claim 1 , wherein the midsole has an outer circumference through which first channels are formed, a second channel along the outer circumference and in communication with the first channels.