Shoes

Abstract

A shoe is configured such that front and back clearances, which are respectively provided between a front wall surface of a second receiving portion and a front end of a second buffering member received in the second receiving portion and between a back wall surface of the second receiving portion and a back end of the second buffering member received in the second receiving portion, permit the second buffering member made of an elastic material to move in a longitudinal direction in the second receiving portion when a ground surface of an outsole contacts the ground and the weight of a human body is put on a heel support surface.

1 . A shoe comprising:
 a midsole arranged above an outsole having a ground surface configured to contact a ground, and configured to support a planta of a human body,   the midsole including
 a longitudinally-extending midsole body which is made of an elastic material and has, on an upper surface, a planta support surface configured to support a plantar surface of a foot of the human body from the tiptoe to the back of the heel, 
 a receiving portion which is provided in a back region in the planta support surface of the midsole body and which is a recess recessed toward the outsole, and 
 a buffering member which is received in the receiving portion in an unfixed manner, includes, on an upper surface, a heel support surface configured to support the heel support surface of the foot of the human body, and is configured to absorb an impact applied in a vertical direction to the heel support surface, wherein 
   a front clearance is provided between a front wall surface facing an inside of the receiving portion and a front end of the buffering body received in the receiving portion, and a back clearance is provided between a back wall surface facing the inside of the receiving portion and a back end of the buffering body received in the receiving portion.   
     
     
         2 . The shoe of  claim 1 , wherein
 each of the front and back clearances ranges from 0.5 mm to 5.0 mm.   
     
     
         3 . The shoe of  claim 1 , wherein
 the buffering member has a width, in a width direction, which is substantially equal to a distance between left and right wall surfaces facing the inside of the receiving portion.   
     
     
         4 . The shoe of  claim 1 , wherein
 a left clearance is provided between a left wall surface facing the inside of the receiving portion and a left end of the buffering body received in the receiving portion, and a right clearance is provided between a right wall surface facing the inside of the receiving portion and a right end of the buffering body received in the receiving portion, and   the left and right clearances permit the buffering member to move relatively in a width direction within the receiving portion when the ground surface of the outsole contacts the ground and a weight of the human body is put on the heel support surface.   
     
     
         5 . The shoe of  claim 4 , wherein
 each of the left and right clearances ranges from 0.5 mm to 5.0 mm.   
     
     
         6 . The shoe of  claim 1 , wherein
 the buffering body has a stack structure in which a plurality of thin plates each made of an elastic material are stacked one above the other, and   the thin plates are movable independently and relatively within the receiving portion.   
     
     
         7 . The shoe of  claim 1 , wherein
 the buffering member is made of the same material as that forming the midsole body.   
     
     
         8 . The shoe of  claim 1 , wherein
 the buffering body is made of an elastic material which has a lower specific gravity or lower hardness than the midsole body.