Snow skis

Abstract

A ski, monoski, or snowboard includes a base plate ( 2 ) with a platform ( 3 ) mounted to its central portion to receiving bindings for binding a skier's boot to the platform. A set of four longitudinal elements ( 40, 41, 42, 43 ) have one end ( 40 a, 41 a, 42 a, 43 a ) which is removably attached to the platform, a second end ( 40 b, 41 b, 42 b, 43 b ) which engages a forward or rearward portion of the base plate ( 2 ), space and a bridge ( 40 c, 41 c, 42 c, 43 c ) between the first and second ends. The bridge is prestressed in order to augment the pressure applied by the boot during skiing to forward and rearward portions of the base plate and to provide a dynamic means of recall for returning the base plate toward a home position.

1 . A board for skiing on snow such as a ski, a monoski or a snowboard, comprising: 
 a base plate    a platform fixed at the base plate in a zone of a boot and intended to support bindings for holding a boot to the board;    a supplemental element including at least a longitudinal part attached at least partly at the platform and extending at least partly along the base plate, each longitudinal part of the supplemental element being attached at one end to the platform in the zone of the boot, and the other end being in free support against the base plate in a zone away from the zone of the boot in such manner to pre-stress the base plate when it is at rest, a middle portion of the aforementioned longitudinal part being isolated from the base plate by forming a pre-stressed bridge in order to augment, in the zone of free support, local pressure applied by the boot and, to constitute a dynamic means of recall of the base plate towards a home position.    
   
   
       2 . The board for skiing on snow according to  claim 1 , wherein the base plate defines reliefs extending longitudinally to define a longitudinal rib, the free support end of the supplemental element engaging the reliefs of the base plate.  
   
   
       3 . The board for skiing on snow according to  claim 1 , wherein the longitudinal parts are attached in a removable way to the platform to permit affixing another longitudinal part of different length.  
   
   
       4 . The board for skiing on snow according to  claim 1 , wherein the supplemental element comprises four longitudinal parts including a front pair of a first identical length and fixed at the front of the platform and a rear pair of a second identical length, different from the first length, and fixed at the back of the platform.  
   
   
       5 . The board for skiing on snow according to  claim 4 , wherein the first length of the first pair is than the second length of the second pair.  
   
   
       6 . The board for skiing on snow according to  claim 5 , wherein the first length is at least 10% greater than the second length.  
   
   
       7 . The board for skiing on snow according to  claim 5 , wherein the first and second pair are detachably mounted in such a way that first and second pairs can be detached without dismounting the platform from the base plate.  
   
   
       8 . The board for skiing on snow according to  claim 1 , wherein the free support end is mounted for sliding translation on the base plate.  
   
   
       9 . The board for skiing on snow according to  claim 8 , wherein the free support end defines groove open to the bottom to received on an elongated projection of complementary form disposed on the base plate.  
   
   
       10 . An elongated element forming a longitudinal part of the supplemental element according to  claim 1 , further including a part forming the bridge extending between the free support end a stem which is adapted to be received in a sleeve defined between a central part of the platform and the base plate.  
   
   
       11 . A supplemental element for board for skiing on snow such as a ski, a monoski or a snowboard, comprising: 
 an elongated element adapted to be attached to a platform to which bindings affix a skier's boot by one of its ends, while the other end is free, the aforementioned elongated element providing pre-stress the board for skiing on snow.    
   
   
       12 . A kit for a board for skiing on snow, including a set of four of the elongated elements according to  claim 11 .  
   
   
       13 . The kit according to  claim 12 , further including a plurality of the sets, each set having elements of different lengths.  
   
   
       14 . A skiing device comprising: 
 a base which slides on snow;    a platform mounted to a central portion of the base to hold bindings for attaching a skier's boot to the platform;    a set of elongated elements including: 
 a pair of forward elongated elements each forward element having (a) a first end attached to the platform, (b) a second end slidably engaging the base forward of the platform, and (c) a bridge between the first and second ends which causes the second end to apply a force to the base forward of the platform while skiing, and  
 a pair of rearward elongated elements each rearward element having (a) a first end attached to the platform, (b) a second end slidably engaging the base rearward of the platform, and (c) a bridge between the first and second ends which causes the second end to apply a force to the base rearward of the platform while skiing.  
   
   
   
       15 . The skiing device according to  claim 14 , wherein the forward elongated elements have a first length and the rearward elongated elements have a second length.  
   
   
       16 . The skiing device according to  claim 15 , wherein the first length is greater than the second length.  
   
   
       17 . The skiing device according to  claim 14 , wherein the first ends of the elongated elements are detachably attached to the platform and further including: 
 additional elongated elements, one end of each (a) being attachable to the platform and (b) having a bridge which is configured to apply a different force to the base relative to the force applied by the elongated elements of the set.