Construction for a ski binding and a ski boot

Abstract

A construction for a ski binding and a ski boot for coupling a ski boot ( 1 )—at its front section to a ski ( 2 ), and allowing the lifting of the heel section of the ski boot from the ski. The ski binding has a coupling mechanism ( 4 ) for coupling the ski boot to the binding, and the ski boot has a transverse rotation axis ( 5 ) coupled to the sole of the boot and positioned perpendicularly to the longitudinal direction of the sole, which rotation axis can be used for coupling the ski boot, with a locking mechanism, to an axial locking ( 6 ) provided on the ski, the sole of the ski boot including a toe section ( 7 ), a ball section ( 8 ), an arched section ( 9 ) and a heel section ( 10 ). The rotation axis is coupled to the sole of the boot such that the toe section is positioned in front of the rotation axis.

1 . A construction for a ski binding and a ski boot for coupling a ski boot ( 1 ) at its front section to a ski ( 2 ), and allowing the lifting of the heel section of the ski boot from the ski, which ski binding comprises a coupling mechanism ( 4 ) for coupling the ski boot to the binding, and which ski boot comprises a transverse rotation axis ( 5 ), coupled to the sole of the boot and positioned perpendicularly to the longitudinal direction of the sole, which rotation axis can be used for coupling, by means of the coupling mechanism, the ski boot to an axial locking ( 6 ) provided on the ski, the sole of the ski boot comprising a toe section ( 7 ), a ball section ( 8 ), an arched section ( 9 ) and a heel section ( 10 ), characterized in that the rotation axis ( 5 ) is coupled to the sole of the boot such that the toe section ( 7 ) is positioned in front of the rotation axis, and in that the area under the toe section ( 7 ) of the sole and below the horizontal plane defined by the rotation axis ( 5 ) comprises a substantially free space ( 11 ) in which the toe section of the sole is able to bend down as the boot is bent about the rotation axis when lifting the heel section ( 10 ) from the ski. 
     
     
         2 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the ski binding comprises a soleplate ( 3 ), and in that the substantially free space ( 11 , 12 ) is formed by a recess formed on the soleplate. 
     
     
         3 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the substantially free space ( 11 , 14 ) is formed partly by the shape of the soleplate and partly by the shape of the toe section of the sole of the boot. 
     
     
         4 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the substantially free space ( 21 ) is formed by a recess formed on the ski ( 2 ). 
     
     
         5 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the substantially free space ( 11 , 14 ) is formed partly by the shape of the ski and partly by the shape of the toe section of the sole of the boot. 
     
     
         6 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the rotation axis ( 5 ) is positioned 20-80 mm, preferably 30-60 mm, for example about 40-50 mm backward from the front tip of the ski boot. 
     
     
         7 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the rotation axis ( 5 ) is positioned under the first joint of the hallux of the skier's foot. 
     
     
         8 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the substantially free space ( 11 ) comprises an elastic flexible element ( 15 , 16 ). 
     
     
         9 . The construction for a ski binding and a ski boot according to  claim 8 , characterized in that the flexible element ( 15 ) fills the entire space. 
     
     
         10 . The construction for a ski binding and a ski boot according to  claim 8 , characterized in that the flexible element ( 16 ) covers only a portion of the space volume. 
     
     
         11 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the substantially free space is wedge-shaped and in that the height of said space increases forward. 
     
     
         12 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the ski binding comprises several interchangeable flexible elements with different elastic properties. 
     
     
         13 . The construction for a ski binding and a ski boot according to  claim 1 , characterized in that the soleplate ( 3 ) comprises one or more guiding ridges ( 17 ) in the longitudinal direction of the ski ( 2 ), which ridges extend backwards from the axial locking ( 6 ).