Sole device

Abstract

The sole device contains a bottom sole, a middle sole, and a top sole stacked in this order from bottom to top. A large number of air chambers are formed between the top and middle soles. The air chambers are interconnected with lateral ducts and the ducts are connected to the top and bottom surfaces of the top and middle soles by a number of vertical channels, respectively. The ducts and air chambers are further connected to one-way valves configured around the circumferences of the middle and bottom soles. As a user walks, the air chambers are periodically pressed to expel warm and humid air to the outside of the shoes via the ducts, channels, and the one-way valves. The one-way valves prevent water or rain from permeating into the shoes.

1 . A sole device, comprising:
 a bottom sole;   a middle sole stacked on top of said bottom sole, said middle sole having a plurality of lower indentations arranged on the top surface of said middle sole, each lower indentation connected to an adjacent lower indentation by a lower trough; and   a top sole stacked on top of said middle sole, said top sole having a plurality of upper indentations arranged on the bottom surface of said top sole, said top sole having a plurality of bulges arranged on the top surface of said top sole, each bulges corresponding to an upper indentation;   wherein each upper indentation joints with a lower indentation to form an air chamber.   
     
     
         2 . The sole device according to  claim 1 , wherein said top sole has a plurality of upper channels, each connecting the top surfaces of said top sole and a lower trough. 
     
     
         3 . The sole device according to  claim 1 , wherein said upper and lower indentations are arranged outside said heel area; said top sole has an upper heel indentation in the middle of said heel area on the bottom surface of said top sole; said middle sole has a corresponding lower heel indentation in the middle of said heel area on the top surface of said middle sole; and said upper and lower heel indentations join to form a heel air chamber. 
     
     
         4 . The sole device according to  claim 3 , wherein said lower heel indentation is connected to an adjacent lower indentation by a lower trough. 
     
     
         5 . The sole device according to  claim 3 , wherein said upper heel indentation is connected to an adjacent upper indentation by an upper trough. 
     
     
         6 . The sole device according to  claim 1 , wherein said middle sole has a plurality of first valves around the circumference of said middle sole; said bottom sole has a plurality of second valves around the circumference of said bottom sole; said first and second valves allow air to flow only from the inside out; at least a first valve connects to one of said lower indentation and a lower tough; and at least a second valve connects to a lower trough. 
     
     
         7 . The sole device according to  claim 1 , wherein said middle sole has a plurality of lower channels connecting the top and bottom surfaces of said middle sole; and the top end of each lower channel is inside a lower trough. 
     
     
         8 . The sole device according to  claim 1 , wherein each upper indentation is connected to an adjacent upper indentation by an upper trough; and each upper trough joins with a lower trough to form a duct connecting two adjacent air chambers.