Midsole With a Shearing Structure for a Shoe and Method of Manufacturing Thereof

Abstract

The present disclosure relates to a sole ( 101 ) for a shoe, in particular for a sports shoe, such as a running shoe, the sole ( 101 ) comprising: a midsole ( 110 ) comprising an upper midsole layer ( 120 ) and a lower midsole layer ( 125 ), the upper midsole layer ( 120 ) and the lower midsole layer ( 125 ) being distinct from one another; and a shearing structure ( 130 ), arranged in the midsole ( 110 ); wherein the shearing structure ( 130 ) is configured to allow a relative movement between the upper midsole layer ( 120 ) and the lower midsole layer ( 125 ).

1 . A sole for a shoe, the sole comprising:
 a midsole comprising an upper midsole layer and a lower midsole layer, the upper midsole layer and the lower midsole layer being at least partially distinct from one another; and   a shearing structure, arranged in the midsole;   wherein the shearing structure is configured to allow a relative movement between the upper midsole layer and the lower midsole layer.   
     
     
         2 . The sole for a shoe according to  claim 1 , wherein the relative movement between the upper midsole layer and lower midsole layer is in a plane defined by a medial to lateral axis (ML) of the sole and a heel to toe axis (HT) of the sole,
 wherein the relative movement between the upper midsole layer and lower midsole layer is substantially parallel to a heel to toe axis (HT) of the sole.   
     
     
         3 . The sole for a shoe according to  claim 1 , wherein the shearing structure is configured to allow the relative movement between the upper midsole layer and the lower midsole layer in at least one of a forefoot portion of the midsole, a midfoot portion of the midsole, a rearfoot portion of the midsole, a lateral portion of the midsole and a medial portion of the midsole. 
     
     
         4 . The sole for a shoe according to  claim 1 , wherein the shearing structure comprises an upper shearing structure on the upper midsole layer and a lower shearing structure on the lower midsole layer, wherein the upper shearing structure and the lower shearing structure are facing one another. 
     
     
         5 . The sole for a shoe according to  claim 4 , wherein the upper shearing structure and the lower shearing structure are at least partially engaged with one another. 
     
     
         6 . The sole for a shoe according to  claim 4 , wherein the upper shearing structure and the lower shearing structure are substantially shaped in correspondence to one another. 
     
     
         7 . The sole for a shoe according to  claim 4 , wherein the upper shearing structure and the lower shearing structure are engaged with one another via a form-fit connection. 
     
     
         8 . The sole for a shoe according to  claim 4 , wherein the upper shearing structure is integrally formed with the upper midsole layer and the lower shearing structure is integrally formed with the lower midsole layer. 
     
     
         9 . The sole for a shoe according to  claim 1 , wherein the upper shearing structure comprises at least one upper protrusion and the lower shearing structure comprises at least one lower recess, and/or
 wherein the lower shearing structure comprises at least one lower protrusions and the upper shearing structure comprises upper recesses.   
     
     
         10 . The sole for a shoe according to  claim 9 , wherein the at least one upper protrusion is at least partially accommodated in the at least one lower recess, and/or
 wherein the one or more lower protrusions are at least partially accommodated in the at least one upper recess.   
     
     
         11 . The sole for a shoe according to  claim 9 , wherein the at least one upper protrusion and/or the one or more lower protrusion are spaced apart (w) from one another as seen in a horizontal plane of the sole. 
     
     
         12 . The sole for a shoe according to  claim 11 , wherein the at least one upper protrusion and the at least one lower protrusion are spaced apart (w) from one another as seen along a heel to toe axis (HT) of the sole ( 101 ), by at least 1 cm. 
     
     
         13 . The sole for a shoe according to  claim 9 , wherein the at least one upper protrusion and the at least one upper recess are arranged in an alternating manner. 
     
     
         14 . The sole for a shoe according to  claim 9 , wherein the at least one upper protrusion and/or the at least one lower protrusion have an elongated shape. 
     
     
         15 . The sole for a shoe according to  claim 9 , wherein the at least one upper protrusion and/or the at least one lower protrusion have a shape as seen in a horizontal plane of the sole comprising at least one of a line segment defined by a mathematical function. 
     
     
         16 . The sole for a shoe according to  claim 15 , wherein the at least one upper protrusion and/or the at least one lower protrusion comprise one or more side surface, the normal of which being substantially parallel to a horizontal plane of the sole, the side surfaces being angled with respect to a medial to lateral axis (ML) of the sole. 
     
     
         17 . The sole for a shoe according to  claim 9 , wherein the at least one upper protrusion and/or the one or more lower protrusion have a maximum height (h) perpendicular to a horizontal plane of the sole of at least 2 mm. 
     
     
         18 . The sole for a shoe according to  claim 1 , further comprising a sole plate provided between the upper midsole layer and the lower midsole layer configured to control relative the movement between the upper midsole layer and the lower midsole layer. 
     
     
         19 . A sole for a shoe, the sole comprising:
 a midsole comprising an upper midsole layer and a lower midsole layer, the upper midsole layer and the lower midsole layer being integrally formed; and   a shearing structure, arranged in a midfoot portion of the midsole and/or a forefoot portion of the midsole;   wherein the shearing structure is configured to allow a relative movement between the upper midsole layer and the lower midsole layer.   
     
     
         20 . A method for manufacturing a sole for a shoe, the method comprising:
 providing a midsole comprising an upper midsole layer and a lower midsole layer, the upper midsole layer and the lower midsole layer being at least partially distinct from one another;   providing a shearing structure, arranged in the midsole;   wherein the shearing structure is configured to allow a relative movement between the upper midsole layer and the lower midsole layer.