Fin

Abstract

The present disclosure provides a fin excellent in a steering property in addition to a straight-running property of a board. The fin is a fin to be attached to theback surface side of a board, and a core member having high strength is provided in the fin so as to be arranged biasedly toward a board side of the fin.

1 . A fin configured to be attached to the back surface side of a board, wherein a core member having high strength is provided in the fin so as to be arranged biasedly toward a board side of the fin. 
     
     
         2 . The fin according to  claim 1 , wherein the core member is arranged along an outer shape of the fin. 
     
     
         3 . The fin according to  claim 1 , wherein the core member extends to a leg portion of the fin to be attached to the back surface side of the board. 
     
     
         4 . The fin according to  claim 1 , wherein a leading end of the core member is positioned on the board side of a top point of a rear edge portion of the fin. 
     
     
         5 . The fin according to  claim 1 , wherein a rear end of the core member is positioned on the front side of a base point of a rear edge portion of the fin. 
     
     
         6 . The fin according to  claim 1 , wherein the core member is formed of a wire rod. 
     
     
         7 . The fin according to  claim 1 , wherein the core member is bonded to a base member forming the fin. 
     
     
         8 . The fin according to  claim 2 , wherein the core member extends to a leg portion of the fin to be attached to the back surface side of the board. 
     
     
         9 . The fin according to  claim 2 , wherein a leading end of the core member is positioned on the board side of a top point of a rear edge portion of the fin. 
     
     
         10 . The fin according to  claim 2 , wherein a rear end of the core member is positioned on the front side of a base point of a rear edge portion of the fin. 
     
     
         11 . The fin according to  claim 2 , wherein the core member is formed of a wire rod. 
     
     
         12 . The fin according to  claim 2 , wherein the core member is bonded to a base member forming the fin. 
     
     
         13 . A board comprising a fin as claimed in  claim 1 , affixed to the board. 
     
     
         14 . The board according to  claim 13 , wherein the board comprises a surfboard.