Shoe with improved fit

Abstract

A shoe with improved fit, of the type comprising a sole and a shell made of plastics. Below the sole there is, in the toe region, a substantially longitudinally extended slot. At the sides of the slot there is a first seat and a second seat, respectively for a pivot and a cam-shaped bush. The pivot and the bush are associated at their ends with a plate arranged inside the sole.

1 . A shoe with improved fit, comprising: a plastic sole; a plastic shell; a toe; a slot that is provided below said sole, in a region of the toe, said slot having a substantially longitudinal extension with respect to the sole; a first seat and a second seat provided in said sole, said slot being interposed therebetween; a pivot arrangeable in said first seat; a cam-shaped bush arrangeable in said second seat; and a fixing plate arranged inside said sole, said pivot and cam shaped bush being associated at their ends, when inserted in said first and second seats, with said fixing plate. 
     
     
         2 . The shoe of  claim 1 , wherein said slot is provided in said sole, in a downward region thereof, so as to extend over the region of said toe and said sole, and has a substantially longitudinal extension along a central axis of the sole with respect thereto, said slot being arranged approximately between a front perimetric edge of said toe and a rear perimetric edge thereof, said rear perimetric edge being adjacent to a plantar arch region of the sole, so as to form a first portion and a second portion, arranged along said central axis, and a third portion arranged between said first and second portions so as to be spaced therefrom first and second portions in a direction of an inner side of the shoe corresponding with an innersole of a foot of a user. 
     
     
         3 . The shoe of  claim 1 , comprising a recess located at said toe on a side thereof directed toward ground, said slot being provided in said recess, and said recess having a shape which is approximately complementary to a footprint of said toe, and being provided with a removable covering element. 
     
     
         4 . The shoe of  claim 3 , wherein said first seat and said second seat are through seats, and said plate has a rectangular shape and is arranged internally and transversely with respect to said sole within a suitably shaped third seat of the sole, which has slightly larger dimensions than the plate. 
     
     
         5 . The shoe of  claim 4 , wherein said pivot is T-shaped, so as to comprise a first head which lies within said recess and a first stem, which passes through said first seat an end of said first stem being associated rotatably within a first hole provided proximate to a first longitudinal end of said plate. 
     
     
         6 . The shoe of  claim 5 , wherein said bush is T-shaped, and comprises a bush head which lies within said recess and a bush stem, which passes within said second seat and from which an axially offset end stem rises, a free end of said end stem being rotatably associated within a second hole provided proximate to a second longitudinal end of said plate. 
     
     
         7 . The shoe of  claim 6 , comprising a tab that protrudes radially to said bush head on an axial offset side of said end stem. 
     
     
         8 . The shoe of  claim 7 , comprising a head seat, for interconnection to a complementarily shaped hex key, that is provided axially to said second head. 
     
     
         9 . The shoe of  claim 7 , comprising stroke limiting means for limiting clockwise and counterclockwise rotation of said cam-shaped bush, said limiting means comprising a limiting plate provided at said recess, adjacent to said second seat, and having such a thickness as to form a lateral surface which is shaped complementarily to a lateral edge of the bush head, said lateral surface having an angular extension that is equal to a circular arc of approximately 90°. 
     
     
         10 . The shoe of  claim 9 , wherein said lateral surface of said limiting plate is arranged, in a condition in which said slot is not subject to forces, approximately on an opposite side with respect to said tab. 
     
     
         11 . The shoe of  claim 10 , comprising, located at respective ends of said lateral surface a first tooth and a second tooth, against which sides of said tab abut selectively. 
     
     
         12 . The shoe of  claim 1 , comprising an elastically deformable sheath suitable to cover said slot. 
     
     
         13 . The shoe of  claim 8 , wherein said head seat is shaped so as to be accessible from outside said sole, an opening being provided on said covering element, which is slot-shaped with an axis which is transverse to said sole. 
     
     
         14 . The shoe of  claim 7 , comprising locking means for temporarily locking a position of said bush with respect to said plate, said locking means being constituted by a stud which protrudes from said bush stem in a same direction as said end stem and in a position that is approximately diametrical thereto, said stud interacting selectively with one among three fixing seats or through holes which are provided on said fixing plate, lie on a circle which is concentrical with respect to said bush and are arranged approximately at 120° with respect to each other so as to interact selectively with said stud. 
     
     
         15 . The shoe of  claim 6 , wherein in conditions of maximum compression and maximum deformation for opening for said slot, said bush is in an undercut condition with respect to a longitudinal axis that passes between said first and second holes.