Athletic board

Abstract

The athletic board which may serve as ski, water ski or floating board is disclosed. The athletic board includes a protection layer, a fiber layer connected to the protection layer, a sponge layer connected to the fiber layer and a rigid substrate layer connected to the sponge layer.

1 . An athletic board comprising:
 a protection having a first side and a second side;   a fiber layer having a first side and a second side, the first side of the fiber layer being connected to the second side of the protection layer;   a sponge layer having a first side and a second side, the fires side of the sponge layer being connected to the second side of the fiber layer; and   a rigid substrate layer having a first side and a second side, the first side of the rigid substrate layer is connected to the second side of the sponge layer.   
     
     
         2 . The athletic board of  claim 1 , wherein the athletic board is a surfboard, water ski, floating board or ski. 
     
     
         3 . The athletic board of  claim 1 , wherein the protection layer is formed by printing or coating. 
     
     
         4 . The athletic board of  claim 1 , wherein the protection layer is transparent or light-permeable. 
     
     
         5 . The athletic board of  claim 1 , wherein at least one side of the fiber layer is provided with a pattern. 
     
     
         6 . The athletic board of  claim 1 , wherein the fiber layer is made of artificial or natural fiber. 
     
     
         7 . The athletic board of  claim 1 , further comprising a bonding layer sandwiched between the fiber layer and the sponge layer. 
     
     
         8 . The athletic board of  claim 1 , wherein the sponge layer is made of low density sponge. 
     
     
         9 . The athletic board of  claim 7 , wherein the binding layer is made of binder. 
     
     
         10 . The athletic board of  claim 1 , wherein the rigid substrate layer is made of high density sponge or plastic. 
     
     
         11 . The athletic board of  claim 1 , further comprising a bonding layer sandwiched between the sponge layer and the rigid substrate layer. 
     
     
         12 . The athletic board of  claim 1 , wherein a surface of the protection layer is smooth or granular. 
     
     
         13 . The athletic board of  claim 4 , wherein a surface of the protection layer is smooth or granular.