公开(公告)号：US3875689A

公开(公告)日：1975-04-08

申请号：US46815874

申请日：1974-05-08

申请人： JUAN FRAU S A

发明人： FRAU TOMAS JUAN

IPC分类号： A43B13/00 ,  A43B13/14

CPC分类号： A43B13/143 ,  A43B13/00 ,  A43B13/145

摘要： An improved sole for a shoe made from a single piece, purposely sized to receive thereon the entire foot of the user, and of the type whose inner shank is anatomically raised at the ball portion to act as a support for the arch of the foot, includes a heel supporting zone in a lower plane than the ball supporting zone which, on the other hand, is slightly raised at its center in a rounded fashion. The sole includes means to prevent the foot from twisting outwards, when resting, and means whereby the weight of the user rests on the big toe, at the end of each stride, which means are respectively comprised of a longitudinal recess in the upper surface of the shank situated between the raised support of the arch and the outer opposite edge, and of a decrease in the thickness of the fore portion of the sole which starts approximately midway of the ball and progresses towards the toe portion, forming a curved surface, whose front view defines an oblique front, when such decrease reaches its maximum value coinciding with the supporting zone for the big toe.