Hatch cover for covering holds of ship - has several beams with which counter beams on the ship side locate in the area of the limitation of the hold opening

摘要

Between the hatch cover side beam (12) and the ship side counter beam (13) is an intermediate beam (14), whereby the hatch side beam and the intermediate beam are rotatable counter to one another. The intermediate beam on its side (16) facing the hatch cover side beam has a section (17) which is circular arc-shaped in cross-section and engages in a circular cross-section cavity (18) in the hatch cover side beam (12). The hatch side beam and the intermediate beam are joined to one another by a rotary union. The ship side counter beam (13) on its side facing the intermediate beam is flat and parallel to the axis (15). USE/ADVANTAGE - A ship hold hatch cover which maintains its position irrespective of torsional effects and rolling during the transit of the vessel.