| 摘要 |
This invention relates to an improved design for a plastic propeller (1) and coupling member (10). The inner surface of the coupling member (1) is formed with a keyway (14) which mates with a corresponding key on the propeller shaft. The outer surface of the coupling member (1) is formed with a securing means to attach the propeller to the coupling member. The construction provides ease in replacing damaged propellers and in retrofitting existing metal propellers with plastic propellers. |
