Wave-generating watercraft with a wave-forming block

Abstract

A wave-generating watercraft includes a craft body having an installation space. A telescopic drive is mounted within the installation space. A pivot seat is mounted on the craft body within the installation space. A wave-forming block is driven by the telescopic drive to move between extended and retracted positions, and has an outside block face and an inside block face. When the wave-forming block moves to the retracted position, the inside block face is pulled by the telescopic drive, and the outside block face moves to the installation space. When the wave-forming block moves to the extended position, the inside block face rotates away from the telescopic drive, and the outside block face protrudes from the installation space.

What is claimed is: 
     
         1 . A wave-generating watercraft, comprising:
 a craft body having front and rear ends, two opposite sides each extending between said front and rear ends, and at least one installation space formed in at least one of said opposite sides; and   at least one wave-generating unit mounted within said at least one installation space, and including
 a telescopic drive mounted to said craft body within said at least one installation space, and 
 a pivot seat mounted on said craft body within said at least one installation space, and 
 a wave-forming block pivotally connected to said pivot seat and said telescopic drive, and driven by said telescopic drive to move between an extended position and a retracted position, said wave-forming block having an outside block face that extends rearward from said pivot seat and that faces outwards in a direction away from said at least one installation space, and an inside block face that extends from said pivot seat in a direction oblique to said outside operating block face and that is pivotally connected to said telescopic drive, 
 wherein, when said wave-forming block moves to the retracted position, said inside block face is pulled inward by said telescopic drive, and said outside block face moves to said at least one installation space and spans said at least one installation space, and 
 wherein, when said wave-forming block moves to the extended position, said inside block face rotates in a direction away from said telescopic drive, and said outside block face protrudes outwardly from said at least one installation space and is oblique to the front-rear direction. 
   
     
     
         2 . The wave-generating watercraft as claimed in  claim 1 , wherein:
 said at least one installation space includes two installation spaces respectively formed in said opposite sides of said craft body; and   said at least one wave-generating unit includes two wave-generating units respectively mounted within said installation spaces.   
     
     
         3 . The wave-generating watercraft as claimed in  claim 1 , wherein an included angle formed between said inside block face and said outside block face ranges between 27 and 75 degrees. 
     
     
         4 . The wave-generating watercraft as claimed in  claim 3 , wherein said included angle is 45 degrees. 
     
     
         5 . The wave-generating watercraft as claimed in claim  1 , wherein said outward block face is a curved surface having radii of curvature lying on a horizontal plane. 
     
     
         6 . The wave-generating watercraft as claimed in  claim 1 , wherein said outward block face is a curved surface having radii of curvature lying on a vertical plane.