LINK-TYPE LADDER FOR CURVED SURFACE WORKING ON HULL BLOCK

摘要

PURPOSE: A link-type ladder for a curved surface working on a hull block is provided to offer convenience to a worker by easily installing the ladder at the curved surface of the hull block regardless of curvature. CONSTITUTION: A link-type ladder is composed of stays(2,3) having a plurality of chain plates(4) connected by connecting pins(5), and steps(6) inserted between the chain plates. A long hole and an angle control hole are formed at the chain plate. A coupling protrusion and a fixing protrusion are formed at both ends of the step, and are inserted into the long hole and the angle control hole, respectively. A separation preventing unit is coupled to the end of the coupling protrusion. Hook units(8) are rotatably installed at the ends of the uppermost chain plates.