| 摘要 |
Device relating to leisure, sport, competition. This device allows the conversion of a sailboard into a moving craft, which can move on the water by virtue of the rotation of a propeller 17, which rotation is brought about by muscle power provided by pressing on pedals 3 mounted on a pedal box with angular return 4, in seated position on a saddle 25 held in a tube 26, which is welded on a double angle bracket 9. At the output of the pedal box with angle return 4 a bar 27 transmits the rotational movement to a flexible coupling 28 connected to a propeller box 15 passing on the movement to the propeller 17 bringing about movement of the sailboard. The propeller box 15 is held on the board by a clamp system, composed of two plates 18 which are locked onto the plank by wing nuts 12. The box-saddle-clamp-propeller system, being independent, can be mounted onto a sailboard without any modification or conversion of the latter, the assembly being stabilised by two floats. <IMAGE> |
