Swim and dive fin

Abstract

A swim and dive fin that includes a foot pocket and a blade portion comprising at least one tab and at least one receptacle. The fin further comprising an associable matching fin that includes at least one matching tab and at least one matching receptacle, the tab engageable with the matching receptacle and the matching tab engageable with the receptacle, in order to provide an interlocking coupling between the two fins.

1 . A swim and dive fin comprising a foot pocket, a blade portion, characterized in that it comprises at least one tab and at least one receptacle in the form of a slot or seat, said fin being associable with a matching fin that comprises at least one matching tab and at least one matching receptacle, so that said tab engages said matching receptacle and said matching tab engages said receptacle, in order to provide an interlocking coupling between the two fins.  
   
   
       2 . The fin according to  claim 1 , wherein said tab is formed on the edge of said blade portion, constituting an extension thereof.  
   
   
       3 . The fin according to  claim 1 , further comprising an open slot or seat that is obtained by means of a bridge provided in the structure in a position that lies below said foot pocket.  
   
   
       4 . The fin according to  claim 3 , wherein said tab comprises a raised portion that is suitable to block said tab inside said slot or seat by interference with said bridge.  
   
   
       5 . The fin according to  claim 1 , further comprising a single slot or seat that is formed in a case member that is provided in the fin below the foot pocket.  
   
   
       6 . The fin according to  claim 5 , wherein said slot or seat comprises a protective membrane that is suitable to close said slot or seat when the fin is not mated with a matching fin, in order to avoid the penetration of sand or other foreign matter.  
   
   
       7 . The fin according to  claim 6 , wherein said membrane is obtained monolithically with said case member and can be deformed elastically in order to allow the insertion of the tab.  
   
   
       8 . The fin according to  claim 1 , wherein said at least one tab is substantially fin-shaped and is elongated toward an end of the fin so that it can be inserted in the corresponding slot or seat of the matching fin, engaging with it.  
   
   
       9 . The fin according to  claim 1 , further comprising two tabs that are formed symmetrically with respect to the longitudinal axis of the fin on the lower surface of said fin, said tabs being suitable to engage corresponding slots or seats that are formed symmetrically with respect to the longitudinal axis of the matching fin to be coupled.  
   
   
       10 . The fin according to  claim 1 , wherein said fins are coupled by arranging said lower surfaces mutually adjacent so that the blade portion of one fin lies at the foot pocket of the other fin, each one of said tabs being located proximate to said corresponding slots or seats.  
   
   
       11 . The fin according to  claim 1 , wherein the mutual engagement and disengagement of the fins occurs by utilizing the elastic deformability of said fins, by making said tabs of one fin slide within said respective slots or seats of the other fin, until a stable locking position is achieved in which said fins are mutually coupled, said two fins being coupled with the respective lower surfaces in contact, so that as a whole they do not exceed the length of the individual fin, said fins being disengageable by disengaging said tabs from said respective slots or seats.  
   
   
       12 . The fin according to  claim 1 , wherein said slot or seat is formed on a flap that protrudes from the contour of the fin.  
   
   
       13 . The fin according to  claim 12 , wherein said protruding flap that comprises said receptacle is obtained from the foot pocket and substantially constitutes an extension of the lower surface of the fin beyond said foot pocket.