Snowboard and skis for use in loose snow

Abstract

A snowboard or ski for use in loose snow, the snowboard or ski having inwardly curved edge portions where the snowboard or ski has greater width at both ends at the transition to the tips than at the middle of the snowboard or ski with upwardly curved tips. The base is divided into a right running surface and a left running surface which two running surfaces together form a downwardly directed apex in the entire length of the snowboard or ski along a partition line between the two running surfaces when seen in a cross direction of the snowboard or ski. Each of the running surfaces forms an angle with the ground, where the sum total of the two angles is less than 90 degrees everywhere along the length of the snowboard or ski.

1 . A snowboard or ski for use in loose snow, the snowboard or ski having inwardly curved edge portions where the snowboard or ski has greater width at both ends at the transition to the tips than at the middle of the snowboard or ski, with upwardly curved tips, wherein:
 the base is divided into a right running surface and a left running surface which two running surfaces together form a downwardly directed apex in the entire length of the snowboard or ski along a partition line between the two running surfaces when seen in a cross direction of the snowboard or ski;   the right running surface includes a right edge, and the left running surface includes a left edge;   each of the running surfaces forms an angle with the ground, where the sum total of the two angles is less than 90 degrees everywhere along the length of the snowboard or ski; and   the angle which the running surfaces form with each other is smaller in the middle of the snowboard or ski than at the transition to the tips.   
     
     
         2 . A snowboard or ski according to  claim 1 , wherein the right and the left running surfaces substantially form a more acute angle with each other in the transition from the narrowest cross section at the middle towards each of the tips. 
     
     
         3 . A snowboard or ski according to  claim 1 , wherein the right and left running surfaces are of substantially equal width. 
     
     
         4 . A snowboard or ski according to  claim 1 , wherein the angle is more acute at the transitions to the tips than at the middle of the snowboard or ski. 
     
     
         5 . A snowboard according to  claim 1 , wherein when the board is pressed against a flat surface on the right running surface, the left edge will overall be at least 1 mm above the surface. 
     
     
         6 . A snowboard according to  claim 1 , wherein when the board is pressed against a flat surface on the right running surface, the left edge at the transition to the widest tip will be at least 3 mm above the surface. 
     
     
         7 . A ski according to  claim 1 , wherein when the ski is pressed against a flat surface on the right running surface, the left edge overall will be at least 0.5 mm above the surface. 
     
     
         8 . A ski according to  claim 1 , wherein when the board is pressed against a flat surface on the right running surface, the left edge at the transition to the widest tip will be at least 1 mm above the surface.