Sport shoe midsole, sport shoe, method for adapting a sport shoe and method for producing a sport shoe

Abstract

A sports shoe midsole includes a body and a cushioning element. The body, made of polymeric material, has an upper face and a lower face. The body defines at least one through-hole with a side wall connecting the upper face and the lower face. The cross section of the through-hole in the lower face is larger than the cross section of the through-hole in the upper face. The cushioning element is detachably mounted with respect to the body. The cushioning element fills the through-hole and bears continuously on the side wall. The cushioning element is arranged in a heel region or a metatarsal region.

1 - 15 . (canceled) 
     
     
         16 . A midsole of a sport shoe comprising a body defining at least one through hole and at least one cushioning part fitted in the at least one through hole; wherein the body is made from polymer material with a top face designed to contact an insole and a bottom face designed to be fixed to an outsole, the at least one through hole having a side wall connecting the top face to the bottom face, the at least one through hole presenting a variable cross-section between the bottom face and top face, the cross-section being measured in a cutting plane parallel to the top face, the at least one through hole presenting a reduction of the value of the cross-section, over at least a first part of the body, in a first direction perpendicular to the cutting plane and directed from the bottom face to the top face, the at least one through hole being arranged in a heel area or in a metatarsal area of the body;
 wherein the at least one cushioning part fills the at least one through hole from the top face to the bottom face, the at least one cushioning part having a top face flush with a top face of the body to absorb shocks caused by walking or running in the direction of the metatarsals or the heel;   wherein the at least one cushioning part is removable with respect to the body, the at least one cushioning part pressing continuously on the side wall of the at least one through hole at least over the first part of the body.   
     
     
         17 . The midsole of a sport shoe according to  claim 16  wherein the at least one through hole presents an increase of the value of the cross-section, over at least a second part of the body, the increase being measured in the first direction perpendicular to the cutting plane and directed from the bottom face to the top face, the body successively comprising at least the bottom face, the first part, the second part and the top face. 
     
     
         18 . The midsole of a sport shoe according to  claim 17  wherein the second part extends from the top face. 
     
     
         19 . The midsole of a sport shoe according to  claim 18  wherein the cushioning part forms two opposite trapeziums joined by smaller bases. 
     
     
         20 . The midsole of a sport shoe according to  claim 18 , wherein the at least one cushioning part has a complementary shape to the at least one through hole between the top face and the bottom face. 
     
     
         21 . The midsole of a sport shoe according to  claim 16 , wherein the at least one cushioning part has a different stiffness from a stiffness of the body, the stiffness being measured in the first direction. 
     
     
         22 . The midsole of a sport shoe according to  claim 16  wherein the side wall defines a tilt angle in a second direction larger than a tilt angle in a longitudinal direction, the second direction being perpendicular to the first direction and perpendicular to the longitudinal axis of the body. 
     
     
         23 . The midsole of a sport shoe according to  claim 22 , wherein the at least one cushioning part has a complementary shape to the at least one through hole between the top face and the bottom face. 
     
     
         24 . The midsole of a sport shoe according to  claim 16 , wherein the at least one through hole and the at least one cushioning part together form an anti-rotation device, and wherein the at least one cushioning part has a different stiffness between a first lateral portion and a second lateral portion, the stiffness being measured in the first direction, a second direction connecting the first lateral portion and the second lateral portion, the second direction being perpendicular to the first direction and perpendicular to a longitudinal axis of the body. 
     
     
         25 . The midsole of a sport shoe according to  claim 24 , wherein the at least one cushioning part can be arranged in the at least one through hole in a first position so that the first lateral portion is located in an inner portion of the body and the second lateral portion is located in an outer portion of the body, or in a second position so that the second lateral portion is located in an inner portion of the body and the first lateral portion is located in an outer portion of the body. 
     
     
         26 . The midsole of a sport shoe according to  claim 16 , wherein the at least one cushioning part is formed by a deformable mesh having a first stiffness in the first direction different from a second stiffness in a second direction, the second direction being perpendicular to the first direction and perpendicular to a longitudinal axis of the body. 
     
     
         27 . The midsole of a sport shoe according to  claim 16 , wherein the at least one cushioning part is formed by at least a first part and a second part, the first part being indissociable from the body when the first part and the second part are installed in the at least one through hole. 
     
     
         28 . The midsole of a sport shoe according to  claim 16  comprising an additional cushioning part fitted removable with respect to the body;
 wherein the body defines at least one additional through hole with a side wall connecting the top face and the bottom face, the cross-section of the additional through hole in the bottom face being larger than the cross-section of the additional through hole in the top face; 
 wherein the additional cushioning part fills the additional through hole and presses continuously on the side wall of the additional through hole, the additional cushioning part being arranged in the metatarsal area and the cushioning part being arranged in the heel area. 
 
     
     
         29 . A sport shoe comprising a midsole according to  claim 16  and an outsole, the outsole being fixed in irremovable manner to the midsole and the outsole closing the through hole to prevent the at least one cushioning part from being removed via the bottom face of the body, the at least one cushioning part being removable via the top face of the body. 
     
     
         30 . A method for adapting a sport shoe comprising the following steps:
 providing a sport shoe according to claim  29 ;   acquiring data relating to a step/stride of a user;   removing the at least one cushioning part of the sport shoe;   inserting at least one new cushioning part in the at least one through hole, the at least one new cushioning part having a stiffness different from a stiffness of the at least one cushioning part, the stiffness of the at least one cushioning part being defined from the acquired data so as to better suit to the user's step/stride.   
     
     
         31 . The method for adapting a sport shoe according to  claim 30  wherein the data relating to the step/stride of the user comprises at least one of the following data items: the user's weight, and determination of a pronated, supinated or neutral stride. 
     
     
         32 . The method for adapting a sport shoe according to  claim 30  wherein the at least one new cushioning part is formed by 3D printing in the form of a deformable mesh and wherein characteristics of the deformable mesh are defined by means of the acquired data. 
     
     
         33 . A method for manufacturing a shoe comprising the following steps:
 providing at least one cushioning part or at least one pad representative of the at least one cushioning part;   installing the at least one cushioning part or pad in a mould designed to form a body of a midsole;   forming the body of the midsole from polymer material around the at least one cushioning part or pad, the body having a top face and a bottom face, the at least one cushioning part or pad passing through the body and extending from the top face to the bottom face, the at least one cushioning part or pad presenting a variable cross-section between the bottom face and the top face, the cross-section being measured in a cutting plane parallel to the top face, the at least one cushioning part or pad presenting an increase of the value of the cross-section, over at least a first part of the body, in a first direction perpendicular to the cutting plane and directed from the bottom face to the top face, the at least one cushioning part or pad having a top face flush with a top face of the body;   fixing an outsole in irremovable manner on the bottom face of the midsole and fixing an upper on the top face of the midsole.