| 摘要 |
PURPOSE:To shake out the tip of an accommodation ladder apart from a side plating and absorb the gap between the side plating and a quay by protruding a davit from the side when a platform and the davit that support the accommodation ladder is rotatably mounted on the side upper deck. CONSTITUTION:When an accomodation ladder staying in a housing position is shaken out, wire ropes 1 and 1a are paid out. And just then a pull-up pulley 2a and a platform pin 5a start moving to the shaking-out position shown by chain lines and at the same time an upper platform 2 reaches the shaking-out position 2' shown by the chain lines while always keeping a level by a pantagraph mechanism consisting of a platform upper link 7, the upper platform 2, a platform bracket 6, and a platform lower link 5. A davit 3 also reaches the shaking-out position 3' shown by the chain lines while keeping a level by the pantagraph mechanism consisting of a davit upper link 13, a davit lower link 11, and a bracket 12 at the same time and in the same way. |
