The invention comprises a segmented plate (1) for watercraft which is able to be swivelled into a stair lift, swimplatform or gangway by means of an active cylinder (4), or passive cylinder (44). The plate (2) consists of segmented strips (5), which have flexible elements (19) or are releasable and equipped with sensors (13), so that in case of bending or releasing of a segmented strip (5), on the grounds of a foreign element (15) trapped into the segmented strip (5), the cylinder (4) is stopped by means of the controller (14). Contact bands (16) and light strips (17) and cover (11) additionally increase the safety of the swivelable plate (2).