Aquatic gliding board having a deck with a sandwich structure with an elastic core

Abstract

An aquatic gliding board, or float, which includes a core covered with an outer casing forming a deck and a hull thereof. The outer-casing includes at least one deck portion and one hull portion, at least the deck portion of the casing having a sandwich structure which includes at least one low-density core between two thinner layers having high mechanical characteristics including layers of resin-impregnated fibers, with the low-density core of the sandwich structure of the casing of the deck portion including a flexible and elastic cellular material.

1 . An aquatic gliding board comprising: 
 a core;    an outer casing covering the core, said outer casing comprising: 
 a deck portion; and  
 a hull portion;  
   at least the deck portion of the outer casing comprising a sandwich structure, said sandwich structure comprising. 
 at least one low-density core layer between two thinner layers;  
 the low-density core layer of the sandwich structure comprising a flexible and elastic cellular material;  
 each of the two thinner layers having a higher strength and stiffness than the core layer of the sandwich structure;  
 each of the two thinner layers comprising a layer of resin-impregnated fibers.  
   
   
   
       2 . An aquatic gliding board according to  claim 1 , wherein: 
 the low-density core layer of the sandwich structure of the deck portion of the outer casing comprises a polyolefin foam.    
   
   
       3 . An aquatic gliding board according to  claim 2 , wherein: 
 the low-density core layer of the sandwich structure of the deck portion of the outer casing comprises a polypropylene foam.    
   
   
       4 . An aquatic gliding board according to  claim 1 , wherein: 
 the material of the low-density core layer of the sandwich structure of the deck portion of the outer casing has a 25% compressive deformation stress, ranging from 100 to 600 kPa.    
   
   
       5 . An aquatic gliding board according to  claim 1 , wherein: 
 the material of the low-density core layer of the sandwich structure of the deck portion of the outer casing has an elastic deformation recovery capacity such that initial shape of the material is recovered following a compression of 25% or about 25%.    
   
   
       6 . An aquatic gliding board according to  claim 1 , wherein: 
 the sandwich structure of the deck portion of the outer casing extends downwardly along lateral sides of the aquatic gliding board.    
   
   
       7 . An aquatic gliding board according to  claim 1 , wherein: 
 the sandwich structure of the deck portion of the outer casing is covered with a protective layer made of thermoformed plastic material.    
   
   
       8 . An aquatic gliding board according to  claim 7 , wherein: 
 the protective layer is transparent; and    an inner surface of the protective layer includes a decoration.    
   
   
       9 . An aquatic gliding board according to  claim 1 , wherein: 
 the hull portion of the outer casing comprises a sandwich structure, said sandwich structure comprising: 
 at least one low-density core layer between two thinner layers;  
 the low-density core layer of the sandwich structure of the hull portion of the outer casing comprises a rigid material;  
 each of the two thinner layers of the sandwich structure of the hull portion of the outer casing having a higher strength and stiffness than the core layer of the sandwich structure of the hull portion of the outer casing;  
 each of the two thinner layers of the sandwich structure of the hull portion of the outer casing comprising a layer of resin-impregnated fibers.  
   
   
   
       10 . An aquatic gliding board according to  claim 1 , wherein: 
 the hull portion of the outer casing comprises at least one layer of resin-impregnated fibers, said at least one layer of resin-impregnated fibers covering an intermediate layer of rigid material.    
   
   
       11 . An aquatic gliding board according to  claim 1 , wherein: 
 the core of the aquatic gliding board is made of expanded polystyrene foam.    
   
   
       12 . An aquatic gliding board according to  claim 1 , wherein: 
 the core of the aquatic gliding board comprises recesses.    
   
   
       13 . An aquatic gliding board according to  claim 1 , further comprising: 
 a protective layer made of thermoformed plastic material covering an entirety of the aquatic gliding board.    
   
   
       14 . An aquatic gliding board according to  claim 12 , wherein: 
 the protective layer is transparent; and    an inner surface of the protective layer includes a decoration.