| 摘要 |
The present invention relates to a flexible propeller (7) that has the feature of generating propulsive force in only one direction, irrespective of the direction of rotation. The flexible propeller (7) may be used in a mechanism similar to a sterndrive, being actuated by two cables (12) and (13) that are wound around a screw thread (14) on the sterndrive shaft (8), one clockwise and the other anticlockwise, and capable of being actuated alternately longitudinally, causing the flexible propeller (7) to rotate in alternate directions, first in one direction and then in the other. The sterndrive in turn may be used in compact structures that can be fitted to catamarans, launches, kayaks or other types of small vessel, without the need for major alterations to the original vessel. |
