Ski

Abstract

The invention relates to a ski, especially a downhill ski, and a trimming rod for such a ski. The ski comprises an elongate ski body and a gliding surface on the bottom face of the ski body. The ski is characterized by at least one approximately longitudinally extending recess and/or one or more receiving devices for detachably receiving a trimming rod. The flexural stiffness and/or the weight of the ski can be adjusted by inserting different trimming rods, thereby allowing to adapt the handling characteristics of the ski to the skier. The ski can also be provided with one or more damping elements.

1 . Downhill ski comprising an elongated ski body and a gliding surface on the underside of the ski, wherein the downhill ski is sidecut; and
 the ski body is provided with several elongated hollow channels of constant cross-section extending in a lengthwise direction through the elongated ski body with a trim rod installed in each of the channels, wherein each of said channels is defined by tubes which are embedded integrally in the ski.   
     
     
         2 . Ski according to  claim 1 ,
 wherein at least one end of the trim rod is mounted so as to be movable in the axial direction of the ski.   
     
     
         3 . Ski according to  claim 1 ,
 wherein the channels extend over at least 30% of the length of the ski.   
     
     
         4 . Ski according to  claim 1  wherein the cross-sections of the channels are circular, elliptical, oval, rectangular or square. 
     
     
         5 . Ski according to  claim 1 , wherein the sections of at least two of the channels are vertically displaced from one another. 
     
     
         6 . Ski according to  claim 1 , wherein the tube is made of fibre-reinforced plastic. 
     
     
         7 . Ski according to  claim 1 , wherein the channels are formed out of the material forming the ski body. 
     
     
         8 . Ski according to  claim 1 , wherein the channels are formed in a shell enveloping the ski body. 
     
     
         9 . Ski according to  claim 8 , wherein the material in which the channels are formed is a fibre-reinforced plastic material. 
     
     
         10 . Ski according to  claim 1 , wherein the bending stiffness of all trim rods in total comes to around 5 Nm 2  to 150 Nm 2 . 
     
     
         11 . Ski according to  claim 1 , wherein bearings are provided as support devices for holding one or both end sections of a trim rod to the surface of the ski. 
     
     
         12 . Ski according to  claim 11 , wherein the bearings may be fixed at different longitudinal positions on the ski. 
     
     
         13 . Ski according to  claim 1 , wherein each trim rod is provided with a bearing which may be so brought into engagement with the trim rod that by this means the trim rod is fixed in its longitudinal position on the ski. 
     
     
         14 . Ski according to  claim 1 , wherein at least one end of the trim rod is coupled to the ski body by means of a damping element. 
     
     
         15 . Ski according to  claim 14 , wherein the damping element is an hydraulic shock absorber or an elastomer damper or a friction damper. 
     
     
         16 . Ski according to  claim 1 , wherein a core of the ski body is made of wood and/or plastic with an upper belt on its upper side, wherein the hollow channels are located above the upper belt of the ski body and the plastic core of the ski body is made of a plastic foam. 
     
     
         17 . Ski body for a downhill ski having a gliding surface on the underside of the ski body, wherein the ski body is sidecut, and
 the ski body is provided with several hollow channels extending in a lengthwise direction each for the mounting of a trim rod, wherein the hollow channels have a constant cross-section and each of said hollow channels is defined by a tube which is embedded integrally in the ski body.   
     
     
         18 . Ski body according to  claim 17 , wherein the structure of a core of the ski body is made of wood and/or plastic with an upper belt on its upper side, wherein the hollow channels are located above the belt of the ski body. 
     
     
         19 . Ski body according to  claim 17 , wherein the core of the ski body is made of a plastic foam. 
     
     
         20 . Ski body according to  claim 17 , wherein a shell enveloping the ski body is provided and the channels are particularly formed in said shell enveloping the ski body, and the material in which the channels are formed is a fibre-reinforced plastic material. 
     
     
         21 . Ski body according to  claim 17 , wherein the tube is made of fibre-reinforced plastic. 
     
     
         22 . Ski with
 a ski body,   a binding plate mounted on the ski body and coupled to the ski by means of a firm-loose mounting,   wherein the binding plate is fitted with a damping element coupled to the ski body through a lever mechanism which converts a change in the difference in height between the ski body and the binding plate into a horizontal translatory movement, and the damping element is mounted on the binding plate in such a way as to counteract the translatory movement, wherein the damping element is adjustable, and the damping element damps an increase in the difference in height between the ski body and the binding plate more strongly than a reduction in this difference in height.   
     
     
         23 - 46 . (canceled)