Angle adjustment device, particularly for a snowboard binding

Abstract

An angle adjustment device, particularly for a snowboard binding, which comprises a supporting base for a shoe. The base has a first seat for a complementarily shaped first disk, which is provided with teeth in an upper region and is associable with the snowboard in a lower region. The first disk is also temporarily associable with a complementarily toothed second upper disk, which has means for axial guiding with the supporting base. An upper plate is rotatably associated with the second disk and interacts selectively with connection means for the temporary mutual locking of the first and second disks.

1 . An angle adjustment device, particularly for a snowboard binding, comprising a supporting base for a shoe having a first seat for a complementarily shaped first disk which is associable with said snowboard in a lower region, characterized in that said first disk, which is provided with teeth in an upper region, is temporarily associable with a complementarily toothed second upper disk which has means for axially guiding with said supporting base, an upper plate being rotatably associated with said second disk and interacting selectively with connection means for temporary mutual locking of said first and second disks.  
     
     
         2 . The device according to  claim 1 , wherein said first disk is rigidly associated with said snowboard, characterized in that a first annular set of teeth is formed on the upper surface of said first disk, proximate to the perimetric edge, and interacts with a complementarily shaped second set of teeth formed on the lower surface of said second disk.  
     
     
         3 . The device according to  claim 2 , characterized in that said first and second sets of teeth are constituted by a plurality of teeth arranged in succession along radial directions.  
     
     
         4 . The device according to one or more of the preceding claims, characterized in that said axial guiding means protrude from the lower surface of said second disk, externally with respect to said second set of teeth and proximate to the perimetric edge of said second disk, so as to interact with said supporting base.  
     
     
         5 . The device according to  claim 4 , characterized in that said axial guiding means are constituted by a plurality of pins which are cylindrical and are suitable for sliding connection in complementarily shaped second seats formed in said supporting base.  
     
     
         6 . The device according to  claim 5 , wherein said first seat is constituted by a circular opening which is formed approximately centrally in said supporting base, characterized in that said second seats are formed along an annular recess which is obtained, in said supporting base, perimetrically to said first seat or opening.  
     
     
         7 . The device according to  claim 6 , characterized in that the height of said annular recess contains and accommodates said second disk.  
     
     
         8 . The device according to one or more of the preceding claims, characterized in that said plate, which is approximately triangular, is rotatably associated with said second disk by virtue of a pivoting element arranged in a region which is off-center with respect to the central axis of said second disk.  
     
     
         9 . The device according to  claim 8 , characterized in that said pivoting element is constituted by a pivot that passes through first and second holes formed respectively in said second disk and said plate.  
     
     
         10 . The device according to  claim 8 , characterized in that said pivoting element is constituted by a rivet that passes through first and second holes formed respectively in said second disk and said plate.  
     
     
         11 . The device according to one or more of the preceding claims, characterized in that a lever, suitable to activate the rotation of said plate, protrudes laterally to said plate on a side which is adjacent to the pivoting side of said pivoting element.  
     
     
         12 . The device according to  claim 11 , wherein said supporting base has two containment side walls for said sports shoe, characterized in that said wing is approximately L-shaped and has dimensions which allow it to be arranged, when said adjustment device is in the locked position, proximate to one of said two side walls, so as to allow to position the sole of said sports shoe on said supporting base.  
     
     
         13 . The device according to one or more of the preceding claims, characterized in that said connection means comprises a second central screw which is constituted by a head which protrudes from a stem which passes through a second slot, formed in said plate, and through a third hole and a fourth hole that are formed centrally respectively in said second disk and in said first disk.  
     
     
         14 . The device according to  claim 13 , characterized in that said stem of said second screw is associated, at its free end, with a locking nut arranged below said first disk.  
     
     
         15 . The device according to  claim 13 , characterized in that said second slot, which has a slightly arc-like shape, is constituted by a first region, formed by a fifth hole, and an adjacent second region, constituted by a slit.  
     
     
         16 . The device according to  claim 15 , characterized in that said fifth hole has a diameter which is not smaller than the width of said head of said second screw.  
     
     
         17 . The device according to  claim 16 , characterized in that said slit, which is shaped like a circular arc centered on said pivoting element, has a width which is between the diameter of said stem and the width of said head of said second screw.  
     
     
         18 . The device according to claims  14  and  17 , characterized in that the length of said stem, between said head and said nut, is equal to the overall thickness of said plate, said first disk, and said second disk.  
     
     
         19 . The device according to  claim 18 , characterized in that the temporary mutual locking of said first and second disks is performed by arranging said slit at said second screw.  
     
     
         20 . The device according to  claim 19 , characterized in that the arrangement of said fifth hole at said second screw entails the mutual uncoupling of said first and second sets of teeth of said first and second disks.  
     
     
         21 . The device according to one or more of the preceding claims, characterized in that it has an elastically compressible member, between said first and second disks; said elastically compressible member being arranged coaxially to said second screw.  
     
     
         22 . The device according to  claim 21 , characterized in that said elastically compressible member is a helical spring and allows the automatic mutual uncoupling of said first and second disks.  
     
     
         23 . The device according to  claim 22 , characterized in that said elastically compressible member is preloaded during the closure of said adjustment device, and acts on said second disk so as to produce its lifting with respect to said first disk when said fifth hole is arranged at said second screw.  
     
     
         24 . The device according to one or more of the preceding claims, characterized in that the thickness of said plate is at least equal to the height of the teeth of said first and second sets of teeth.  
     
     
         25 . The device according to one or more of the preceding claims, characterized in that said head of said second screw is approximately frustum-shaped and said fifth hole has a diameter which is slightly smaller than the maximum width of said head.  
     
     
         26 . The device according to  claim 25 , characterized in that it provides a partial coupling between said second screw and the edges of said fifth hole even in locking conditions, so as to facilitate restoring a coupling between said head and said slit when said adjustment device is locked.  
     
     
         27 . The device according to one or more of the preceding claims, characterized in that said first disk is approximately frustum-shaped or otherwise shaped so as to taper downward, so that once it is arranged within said opening and coupled to said snowboard, its rim interacting with the complementarily shaped edge of said opening, preventing the lifting of said supporting base.