Reinforcement element for a sports shoe

Abstract

The sole (2) for a sports shoe (1) includes a reinforcement element (11) intended to extend below the plantar aponeurosis (44) and having a rear part (21), a front part (22) and a central hinge (23) connecting the front part to the rear part, the front part being less rigid than the rear part, the rear part being intended to extend in front of a posterior contact point (41) of the foot and including at least one longitudinal branch (24, 25) intended to extend between an anteromedial contact point (42) and an anterolateral contact point (43) of the foot.

1 . A sole for a sports shoe, comprising:
 a reinforcement element, the reinforcement element being adapted to extend below a plantar aponeurosis of a foot of a person wearing the sports shoe, the reinforcement element comprising:   a rear part,   a front part, and   a central hinge connecting the front part to the rear part,
 wherein 
   the front part is less rigid than the rear part,   the rear part is adapted to extend in front of a posterior contact point of the foot,   the front part comprises at least one longitudinal branch, the at least one longitudinal branch being adapted to extend between an anteromedial contact point and an anterolateral contact point of the foot.   
     
     
         2 . The sole according to  claim 1 , wherein the at least one longitudinal branch comprises a first longitudinal branch and a second longitudinal branch extending parallel to the first longitudinal branch. 
     
     
         3 . The sole according to  claim 2 , wherein
 the first longitudinal branch has a substantially constant width and thickness, and/or   the second longitudinal branch has a substantially constant width and thickness.   
     
     
         4 . The sole according to  claim 2 , wherein
 the first longitudinal branch comprises a substantially straight inner lateral edge and a substantially straight outer lateral edge, and/or   the second longitudinal branch comprises a substantially straight inner lateral edge and a substantially straight outer lateral edge.   
     
     
         5 . The sole according to  claim 1 , wherein
 the rear part of the reinforcement element is adapted to extend below a navicular bone, below a cuboid bone, below cuneiform bones, and below a rear part of five metatarsals of the foot, and   the at least one longitudinal branch is adapted to extend below a front part of a second metatarsal and/or below a front part of a third metatarsal.   
     
     
         6 . The sole according to  claim 1 , wherein the rear part of the reinforcement element comprises a set of openings having a closed contour. 
     
     
         7 . The sole according to  claim 1 , wherein the rear part of the reinforcement element comprises a set of stiffening ribs, the stiffening ribs extending so that the stiffening ribs project relative to a plane within which the rear part extends. 
     
     
         8 . The sole according to  claim 7 , wherein
 the rear part of the reinforcement element comprises a set of openings having a closed contour, and   the stiffening ribs are arranged on the closed contour of the openings of the set of openings.   
     
     
         9 . The sole according to  claim 1 , wherein
 the rear part of the reinforcement element comprises an inner lateral rim extending upwards and adapted to extend along an inner lateral edge of a plantar aponeurosis, and/or   the rear part of the reinforcement element comprises an outer lateral rim extending upwards and adapted to extend along an outer lateral edge of the plantar aponeurosis.   
     
     
         10 . The sole according to  claim 1 , wherein the rear part of the reinforcement element comprises a rear notch configured so as to space the posterior contact point apart from a rear edge of the reinforcement element by at least one centimetre. 
     
     
         11 . The sole according to  claim 1 , wherein the central hinge forms a narrowest zone of the reinforcement element along a transverse axis. 
     
     
         12 . The sole according to  claim 1 , wherein the reinforcement element is a monolithic element consisting of plastic and obtained by moulding. 
     
     
         13 . The sole according to  claim 1 , wherein the sole comprises
 an upper part provided with an upper surface adapted to receive a lower surface of a foot, the upper part comprising an upper shock-absorbing layer, the upper part extending above the reinforcement element, and/or   a lower part provided with a lower surface intended to come into contact with the ground, the lower part comprising a lower shock-absorbing layer, the lower part extending below the reinforcement element.   
     
     
         14 . The sole according to  claim 1 , wherein the reinforcement element comprises
 a visible inner face on an inner side of the sole, and/or   a visible outer face on an outer side of the sole.   
     
     
         15 . A sports shoe comprising a sole according to  claim 1 . 
     
     
         16 . The sports shoe according to  claim 15 , which is a sports shoe adapted for running. 
     
     
         17 . The sports shoe according to  claim 16 , which is a sports shoe adapted for trail running. 
     
     
         18 . The sole according to  claim 7 , wherein the stiffening ribs project downwards relative to the plane within which the rear part extends. 
     
     
         19 . The sole according to  claim 3 , wherein
 the first longitudinal branch comprises a substantially straight inner lateral edge and a substantially straight outer lateral edge, and/or   the second longitudinal branch comprises a substantially straight inner lateral edge and a substantially straight outer lateral edge.   
     
     
         20 . The sole according to  claim 19 , wherein
 the rear part of the reinforcement element is adapted to extend below a navicular bone, below a cuboid bone, below cuneiform bones, and below a rear part of five metatarsals of the foot, and   the at least one longitudinal branch is adapted to extend below a front part of a second metatarsal and/or below a front part of a third metatarsal.