Footwear device for moving around on walls made of perforated cladding plates

Abstract

Disclosed is a footwear device for moving around on walls made of perforated plates, having an innerboot secured to a sole made of flexible plastics material, extending along a longitudinal axis from a heel to a tip, the sole having a semi-rigid plate, known as a core, embedded in the thickness of the sole. The core is designed to receive one or more rigid fingers that are able to pass into a hole in the wall made of perforated plates, the finger extending along the longitudinal axis and protruding from the front of the sole.

1 . Footwear device ( 1 ) for moving around on walls ( 13 ) made of perforated plates, comprising an upper ( 2 ) fixedly attached to a sole ( 3 ) of flexible synthetic material, extending along a longitudinal axis ( 22 ) from a heel ( 24 ) to a toe, said sole comprising a semi-rigid plate, named core ( 5 ), integrated into the thickness of the sole, wherein said core is adapted to receive at least one rigid finger ( 4 ) able to pass into a corresponding hole ( 28 ) in the wall made of perforated plates, each finger extending at least partially along the longitudinal axis and protruding towards the forward part of the sole. 
     
     
         2 . Device as claimed in  claim 1 , wherein each finger ( 4 ) is removably mounted in the core ( 5 ) of the sole ( 3 ). 
     
     
         3 . Device as claimed in  claim 2 , wherein the finger ( 4 ) is fixed in a receiver ( 6 ) fixedly attached to the core ( 5 ) by a conical shank ( 7 ) comprising a flat ( 8 ) for orientating the finger. 
     
     
         4 . Device as claimed in  claim 1 , further comprising a plurality of fingers ( 4 ) removably and adjustably mounted on a support ( 30 ) fixedly attached to the core ( 5 ) of the sole ( 3 ). 
     
     
         5 . Device as claimed in  claim 4 , wherein the support ( 30 ) is fixed in a receiver ( 6 ) fixedly attached to the core ( 5 ) by a conical shank ( 7 ) comprising a flat ( 8 ) for orientating the support. 
     
     
         6 . Device as claimed in  claim 1 , wherein the core ( 5 ) is also suitable for forming, at the heel ( 24 ), a transverse housing ( 9 ) orthogonal to the longitudinal axis ( 22 ), issuing on both sides of the sole ( 3 ). 
     
     
         7 . Device as claimed in  claim 6 , further comprising a stirrup ( 11 ) comprising two branches ( 26 ) connected by an arch ( 27 ), said branches being respectively articulated on both sides of the sole ( 3 ) on a shaft ( 10 ) extending through the transverse housing ( 9 ), the arch of said stirrup extending over a front ( 25 ) of the upper ( 2 ). 
     
     
         8 . Device as claimed in  claim 7 , further comprising a hook ( 12 ) articulated on the arch ( 27 ) of the stirrup ( 11 ) and adapted to hook into a hole ( 28 ) in the wall ( 13 ) made of perforated plates. 
     
     
         9 . Device as claimed in  claim 6 , further comprising two lateral tie rods ( 38 ) respectively fixed to each end of the shaft ( 10 ) and adapted to be tensioned between said end and a hole ( 28 ′) in the wall ( 13 ) made of perforated plates, located substantially in a plane of the sole ( 3 ). 
     
     
         10 . Device as claimed in  claim 9 , wherein the lateral tie rods ( 38 ) have a length making it possible to fix their end in a hole ( 28 ′) located at a distance between a half-length and a length of the core ( 5 ) with respect to the longitudinal axis ( 22 ) of the sole ( 3 ). 
     
     
         11 . Device as claimed in  claim 1 , wherein the sole ( 3 ) comprises an external face, named wear sole ( 18 ), fitted with studs ( 16 ,  17 ) having a recess ( 23 ), which are adapted to hold the device ( 1 ) by a suction effect on a wall ( 13 ) made of perforated plates having an inclination permitting movement on the wall without use of the rigid finger ( 4 ). 
     
     
         12 . Device as claimed in  claim 11 , wherein the sole ( 3 ) comprises, at the heel ( 24 ), at least one stud ( 17 ), the recess ( 23 ) in which is made smaller so as to reduce the suction effect of said stud in order to facilitate detachment of the sole under the effect of traction. 
     
     
         13 . Device as claimed in  claim 11 , wherein the studs are removable and are fixed by screwing in tapped housings ( 39 ) integral with the core ( 5 ). 
     
     
         14 . Device as claimed in  claim 1 , wherein the sole ( 3 ) comprises a longitudinal stiffener ( 36 ) extending under the core ( 5 ) from the toe to the heel of the sole. 
     
     
         15 . Device as claimed in  claim 1 , wherein the upper ( 2 ) forms an overshoe and comprises a lace ( 19 ,  20 ) adapted to firmly hold a shoe in the upper. 
     
     
         16 . Device as claimed in  claim 2 , wherein the core ( 5 ) is also suitable for forming, at the heel ( 24 ), a transverse housing ( 9 ) orthogonal to the longitudinal axis ( 22 ), issuing on both sides of the sole ( 3 ). 
     
     
         17 . Device as claimed in  claim 3 , wherein the core ( 5 ) is also suitable for forming, at the heel ( 24 ), a transverse housing ( 9 ) orthogonal to the longitudinal axis ( 22 ), issuing on both sides of the sole ( 3 ). 
     
     
         18 . Device as claimed in  claim 4 , wherein the core ( 5 ) is also suitable for forming, at the heel ( 24 ), a transverse housing ( 9 ) orthogonal to the longitudinal axis ( 22 ), issuing on both sides of the sole ( 3 ). 
     
     
         19 . Device as claimed in  claim 5 , wherein the core ( 5 ) is also suitable for forming, at the heel ( 24 ), a transverse housing ( 9 ) orthogonal to the longitudinal axis ( 22 ), issuing on both sides of the sole ( 3 ). 
     
     
         20 . Device as claimed in  claim 7 , further comprising two lateral tie rods ( 38 ) respectively fixed to each end of the shaft ( 10 ) and adapted to be tensioned between said end and a hole ( 28 ′) in the wall ( 13 ) made of perforated plates, located substantially in a plane of the sole ( 3 ).