Sole structure

Abstract

The present invention relates to a sole structure ( 10 ) comprising an outsole ( 31 ) and a midsole ( 33 ) and an insert member ( 4 ), between said outsole and said midsole. The insert member comprises at least a cage portion ( 410 ) having a first cavity ( 41 ) that accommodates a cushion member ( 5 ). The midsole comprises a second cavity ( 330 ), in which said cushion member can be at least partially inserted.

1 . A sole structure ( 10 ) comprising an outsole ( 31 ) and a midsole ( 33 ) and an insert member ( 4 ), which is positioned between said outsole and said midsole, characterized in that said insert member comprises at least a cage portion ( 410 ), which is positioned at the heel region of the user's foot, said cage portion comprising a first cavity ( 41 ), which accommodates at least partially a cushion member ( 5 ), said midsole comprising at least a second cavity ( 330 ), in which said cushion member can be at least partially inserted. 
     
     
         2 . A sole structure according to  claim 1 , characterized in that said cushion member is capable to enter in contact with the user's foot or with an insole ( 150 ) of said sole structure. 
     
     
         3 . A sole structure according to  claim 2 , characterized in that said second cavity is a hole which passes through the entire thickness of said midsole. 
     
     
         4 . A sole structure according to  claim 3 , characterized in that said cushion member is inserted through said hole, so as to be capable to enter in contact with the user's foot or with an insole ( 150 ) of said sole structure. 
     
     
         5 . A sole structure according to  claim 1 , characterized in that said cage portion comprises at least a first lateral wall ( 411 ) having an internal surface ( 412 ), which defines at least partially the perimeter of said first cavity. 
     
     
         6 . A sole structure according to  claim 1 , characterized in that said cage portion comprises at least a third cavity ( 43 ), which communicates with said first cavity. 
     
     
         7 . A sole structure according to  claim 5 , characterized in that said third cavity extends at least partially through said first lateral wall. 
     
     
         8 . A sole structure according to  claim 7 , characterized in that said third cavity extends through said first lateral wall from the internal surface to an external surface ( 413 ) of said first lateral wall. 
     
     
         9 . A sole structure according to  claim 6 , characterized in that said third cavity has a tubular shape. 
     
     
         10 . A sole structure according to  claim 6 , characterized in that said third cavity has an elongated shape. 
     
     
         11 . A sole structure according to  claim 1 , characterized in that said cushion member can expand at least partially along at least a predefined direction when a pressure is applied on said cushion member. 
     
     
         12 . A sole structure according to  claim 6 , characterized in that said cushion member is capable of expanding at least partially along said third cavity when a pressure is applied on said cushion member. 
     
     
         13 . A sole structure according to  claim 11 , characterized in that said cushion member is at least partially inserted through said third cavity. 
     
     
         14 . A sole structure according to  claim 1 , characterized in that said cushion member is made of a gel material or an elastomeric material or an impact resistant material. 
     
     
         15 . A shoe ( 100 ) characterized in that it comprises a sole structure ( 10 ) according to  claim 1 .