Sole structure of working shoe

Abstract

A sole structure of working shoe has an upper and a sole bonded by a stitching. A front portion according to the toes and extended from the surface of the sole has an overall size which is smaller than the sole. A gadroon forms along the outer periphery of the heel portion of the sole, and the gadroon has a quite depth for stitching so that the stitching stitches the sole under the upper along the contour of the sole. Furthermore, the gadroon is filled up with a welt, and the welt covers the stitching in the gadroon.

1 . A sole structure of working shoe comprising an upper and a sole bonded by a stitching, a gadroon forming along the outer periphery of the heel portion of the sole, and the gadroon having a quite depth for stitching so that the stitching stitches the sole under the upper along the contour of the sole.  
     
     
         2 . The sole structure of working shoe as claimed in  claim 1 , wherein the gadroon is filled up with a welt, and the welt covers the stitching in the gadroon.  
     
     
         3 . A sole structure of working shoe comprising an upper and a sole bonded by a stitching, a front portion according to the toes and extended from the surface of the sole has an overall size which is smaller than the sole; a gadroon forming along the outer periphery of the heel portion of the sole, and the gadroon having a quite depth for stitching so that the stitching stitches the sole under the upper along the contour of the sole.  
     
     
         4 . The sole structure of working shoe as claimed in  claim 3 , wherein the gadroon is filled up with a welt, and the welt covers the stitching in the gadroon.