| 摘要 |
PURPOSE: A ship rudder is provided to selectively increase lifting force depending on rudder angle. CONSTITUTION: A ship rudder is located at the rear side of a propeller of a ship and comprises a blade body(22), a variable plate(25), and a cam actuating part(26). The variable plate is accommodated on the blade body to be projected to the rear side of the blade body. The cam actuating part selectively projects the variable plate depending on rudder angles of the blade body. The cam actuating part comprises a driving body having at least one protrusion part and a driven body. The driven body reciprocates according to the rotation of the driving body and selectively projects the variable plate. |
