A trawling vessel with a lock chamber

摘要

The invention relates to a trawling vessel for use with a trawl net 5 for catching marine bio-resources, with a trawl sack 3 attached aft on a trawl net 5 for keeping the catch, said vessel comprising lines 51, 61 for towing and hauling said trawl net 5 and trawl drums 6 for hauling said trawl net 5, characterized by a lock chamber 1 in a stern 21 of said vessel, said lock chamber 1 having a main portion of its volume below said design water line of said vessel, said lock chamber 1 being arranged for hauling said trawl sack 3 with the catch from the sea, through a sluiceway 2 in said stern 21, and said lock chamber 1 being arranged for discharge of said trawl sack 3 and for temporarily keeping said catch and a trunk channel 16, 12 leading up from said lock chamber 1 and being arranged so that said trawl sack 3, in a generally discharged state, may be hauled up through said trunk channel 16, 12 to a deck 24, thereby leaving said catch in said lock chamber 1.