Shoe sole with forced ventilation

Abstract

This invention relates to a shoe sole with forced ventilation that incorporates an electrically-powered fan that creates a depression to bring the air contained in the upper inside the sole, and convey the same air into a duct that ejects it outside through a suitable vent hole obtained in lateral position on the sole.

1 . Shoe sole with forced ventilation, of the type provided with an upper perimeter border ( 2 ) that supports an insole ( 3 ) provided on the front half-sole with a plurality of through holes ( 3   a ) through which the air contained in the upper is forced into the sole ( 1 ) and then conveyed outside through a vent hole obtained on the side of the sole ( 1 ), sole characterized by the fact that the front half-sole is provided with a series of basically longitudinal small channels ( 4   a ) that end in a depression chamber (C 1 ) in communication with a delivery chamber (C 2 ), with the interposition of a fan ( 7 ) powered by a battery ( 8 ) and controlled by a switch ( 9 ) that can be accessed on the outside of the sole ( 1 ); it being provided that the delivery chamber (C 2 ) is closed by the insole ( 3 ) and is provided on one of the walls with a small hole ( 11 ) that takes the forced air flow produced by the fan ( 7 ) through a duct leading to the external vent hole. 
     
     
         2 . Sole as claimed in  claim 1 , characterized by the fact that the depression chamber (C 1 ) and the delivery chamber (C 2 ) are obtained inside a compartment ( 5 ) that houses the fan ( 7 ) with rotation axis in vertical position at approximately half of its height. 
     
     
         3 . Sole as claimed in  claim 1 , characterized by the fact that the depression chamber (C 1 ) and the delivery chamber (C 2 ) are obtained inside a compartment ( 5 ) that houses the fan ( 7 ) with rotation axis in horizontal position at approximately half of its length. 
     
     
         4 . Sole as claimed in  claim 3 , characterized by the fact that the battery ( 8 ) of the fan ( 7 ) is housed inside a corresponding compartment ( 6 ) adjacent to the aforementioned compartment ( 5 ) that houses the fan ( 7 ). 
     
     
         5 . Sole as claimed in  claim 1 , characterized by the fact that the switch ( 9 ) used to control the battery ( 8 ) is contained in a suitable housing ( 10 ) obtained on the side of the sole ( 1 ). 
     
     
         6 . Sole as claimed in  claim 1 , characterized by the fact that the channels ( 4   a ) obtained on the front half-sole are bordered by basically longitudinal partitions ( 4 ) with the top positioned at a lower height than the perimeter border ( 2 ) that surrounds the sole ( 1 ). 
     
     
         7 . Sole as claimed in  claim 1 , characterized by the fact that the channels ( 4   a ) obtained on the front half-sole are bordered by basically longitudinal partitions ( 4 ) with the top positioned at the same height as the perimeter border ( 2 ) that surrounds the sole ( 1 ). 
     
     
         8 . Sole as claimed in  claim 7 , characterized by the fact that it is provided with an insole ( 3 ) with through holes ( 3   a ) along basically longitudinal lines that are situated in the same position as the channels ( 4   a ) obtained on the upper side of the sole ( 1 ) under the insole ( 3 ). 
     
     
         9 . Sole as claimed in  claim 1 , characterized by the fact that the lateral vent hole is provided with an air-permeable water-impermeable membrane. 
     
     
         10 . Sole as claimed in  claim 1 , characterized by the fact that the battery ( 8 ) is an ordinary replaceable battery.