| 摘要 |
The heightening platform (1) to be installed on a surfboard (4) has a free end (6) with a longitudinal sliding capability relative to the board. A stop (20) is fixed to the board to form a fixed point. A movable part (40) can be moved within the platform free end by the user. This movable part can take up a locked position where it has a portion abutting against the fixed stop so as to prevent movement of the platform end, and a free position where it can slide freely relative to the stop and allow longitudinal sliding of the platform. |
