| 摘要 |
<p>A hand propelled water craft, e.g. a dinghy, skiff, raft or float, is provided with propelling means constituted by at least one member (11) having a pivotal middle portion (16) and two end portions one (12) of which is paddle-shaped and adapted to drive the craft when the other end portion (20) is manually moved, said paddle-shaped portion being underwater when the craft is in use in smooth water and adapted to oscillate around a pivotal bearing (14) which allows the paddle-shaped portion to swing so that the craft is propelled by an up and down movement of the free end of the paddle-shaped portion. <IMAGE></p> |
