| 摘要 |
<p>The invention in principle comprises a propeller formed by independent blades that incorporate a seating base via which the blades are secured so as to correspond to an end portion of a propulsion shaft of the vessel. The invention is characterized in that the end portion (3) of the propulsion shaft (4) comprises a prismatic structure, on the planar faces whereof rest, in a complementary manner, other, facing planar faces of the heads (12) for seating the independent blades (2), all planar faces having facing pairs of keyways (10-10') in which a key (11) for guiding and positioning the independent blades (2) is inserted, which blades are secured by means of transverse screws (7) that secure the heads (12) for seating the independent blades (2) to the lateral faces (6) of the end portion (3) of the propulsion shaft (4).</p> |
