Importance

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Abstract

To provide a fin attachment structure capable of facilitating the attachment/detachment of a fin and also of making the attachment of the fin robust, wherein if the fin comes into contact with human body from behind during surfing, the impact of the fin can be eliminated to restrict the damage to the human body to an extreme minimum and thus safety is improved. The above problem can be solved by a fin attachment structure, in which a groove part in which a fin is attached is provided on the bottom surface of a board and further a pin is provided across the groove parts in the nose direction, plungers are provided at the opposing positions on both side surfaces of the groove in the tail direction,

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First Claim