Semirigid boat for use as a service watercraft

Abstract

A semirigid boat, specifically designed as a service watercraft for short and middle range navigation, for disembarking and embarking tourists and passengers from cruise and pleasure vessels, comprises a bottom, a deck and floating means which are mutually operatively associated, wherein the floating means comprises one or more synthetic material floating elements having a peculiar shape.

1 . A semirigid boat, designed for operating as a service watercraft, comprising a boat bottom, a boat deck and floating means mutually associated with one another, characterized in that said floating means comprise one or more floating elements made of a synthetic material and having a discrete peculiar shape.  
   
   
       2 . A semirigid boat according to  claim 1 , characterized in that each said floating element comprises one or more pairs of trapezoidal recesses, respectively a bottom recess and a top recess, to which bottom recess corresponding a top recess, said recesses communicating through a hole.  
   
   
       3 . A semirigid boat according to  claim 1 , characterized in that said floating elements are made by extruding or mold injecting profile elements of a foamed polyurethane material and by coating said profile elements with a mold-formed polyurethane material.  
   
   
       4 . A semirigid boat according to  claim 1 , characterized in that said floating elements are coupled, at a bottom thereof, to said deck and, at a top thereof, to a top element having a perimetrical plan analogous to that of said deck.  
   
   
       5 . A semirigid boat according to  claim 1 , characterized in that said floating elements are coupled to said deck and top element by plugging in said bottom recesses into a corresponding plurality of profile elements provided on said deck, and said top recesses onto a corresponding plurality of profile elements provided on said top element, each said profile element of said boat bottom being mechanically coupled with a corresponding profile element of the top element by a tie-rod passing through said hole.  
   
   
       6 . A semirigid boat according to  claim 4 , characterized in that said top element comprises, near each said profile element, an opening closed by a plug.  
   
   
       7 . A semirigid boat according to  claim 1 , characterized in that each said floating element comprises at an astern position, a strip made of the same outer coating material and, toward a bow of said boat a corresponding narrowed portion to provide a plug-in and side connection thereof.  
   
   
       8 . A semirigid boat according to  claim 7 , characterized in that said strip is directly made as said outer coating is formed by using an extended mold of each floating element.