Shoe Having Lace Fitting Structure

Abstract

A shoe including a sole 1 for absorbing an impact of landing, an upper 2 for wrapping around an instep, and shoelace means 3 for fitting the upper 2 to the instep, the upper 2 including: a main portion 2 M covering a medial side surface, a lateral side surface, a toe, the instep and a back surface of a foot; a side edge portion having a plurality of first eyelets H 1 ; a first side panel 51 covering the medial side surface of the foot; and a second side panel 52 covering the lateral side surface of the foot, wherein each side panel includes: a tip portion 53 having a second eyelet H 2 which is provided at a tip of the side panel and which the shoelace means passes through and engages with; a bottom portion 54 attached to the main portion and/or the sole; and a middle portion 55 arranged between the tip portion and the bottom portion so as to allow the tip portion to move in the front-back direction of the foot with respect to the bottom portion, wherein with at least one of the side panels, the middle portion 55 can stretch and shrink to increase a length from the tip portion to the bottom portion.

What is claimed is: 
     
         1 . A shoe having a lace fitting structure, comprising:
 a sole for absorbing an impact of landing; an upper for wrapping around an instep; and a shoelace means for fitting the upper to the instep, wherein   the upper includes a first opening from which a leg of a wearer of the shoe extends upward when the shoe is worn, and a second opening provided on a front side of the first opening, the first opening and the second opening being continuous with each other in a front-back direction,   the upper comprises:   a main portion covering a medial side surface, a lateral side surface, a toe, the instep, and a back surface of a foot of the wearer;   a first side edge portion provided along a side edge of the second opening and having a plurality of first eyelets which the shoelace means passes through and engages with; and   a second side edge portion provided along the side edge of the second opening and having one or more second eyelets which the shoelace means passes through and engages with, wherein:   the second side edge portion is connected to the main portion via a stretchable portion, wherein the stretchable portion is more stretchable than the first and second side edge portions and the main portion so that the second side edge portion move with respect to the main portion in a circumference direction, a front direction and a rear direction of the foot when the foot is bent, the stretchable portion is stretchable in the circumference direction of the foot in the vicinity of the second side edge portion at least in the circumference direction when the foot is bent, and the stretchable portion is arranged in such a state that the stretchable portion is stretchable in the front-back direction on a front side and a rear side of the second side edge portion; and   the main portion which is less stretchable than the stretchable portion is adapted to cover a Lisfranc joint and a metatarsal bone base of a fifth toe on a lateral side of the foot.   
     
     
         2 . A shoe according to  claim 1 , wherein:
 the one or more second eyelets are provided on the lateral side of the foot; and   the one or more second eyelets on the lateral side are adapted to be arranged only at a position posterior to a metatarsal phalangeal joint of a fourth toe and anterior to a base of a metatarsal bone of the fourth toe.   
     
     
         3 . A shoe according to  claim 1 , wherein the number of the second eyelets provided on the lateral side of the foot is only one. 
     
     
         4 . A shoe according to  claim 1 , wherein the stretchable portion surrounds the second side edge portion from a front side, a rear side, and a lower side of the second side edge portion, the stretchable portion including:
 a first portion arranged along the side edge of the second opening on the front side and the rear side of the second side edge portion; and   a second portion arranged on the lower side of the second side edge portion, the first portion being less stretchable than the second portion.   
     
     
         5 . A shoe according to  claim 1 , wherein:
 the stretchable portion covers a portion of the lateral side surface of the foot and extends across the main portion of the upper on the lateral side surface; and   a portion of the main portion anterior to the stretchable portion and another portion of the main portion posterior to the stretchable portion are connected with each other only via the stretchable portion.   
     
     
         6 . A shoe according to  claim 1 , wherein the stretchable portion surrounds the second side edge portion from a front side, a rear side, and a lower side of the second side edge portion, the stretchable portion including:
 a first portion arranged along the side edge of the second opening on the front side and the rear side of the second side edge portion; and   a second portion arranged on the lower side of the second side edge portion.   
     
     
         7 . A shoe according to  claim 1 , wherein the number of the one or more second eyelets is one,
 two or more first eyelets of the plurality of first eyelets are positioned posterior to the one second eyelet, and   one first eyelet of the plurality of first eyelets except the two or more first eyelets is positioned anterior to the one second eyelet.