| 摘要 |
An excavator/digging unit for installation aboard a vessel (12), whereby the aims are great reach of the digging bucket, great lifting strength of the boom work (10) and very good stability conditions aboard the vessel (12) supporting the digging unit. For these purposes the boom work (10) has two longitudinal, parallel boom arms (14), each at a distance outside the adjacent side of the vessel, and which are supported jointly pivotal at the rear. At their opposite end portions, the two longitudinal boom arms (14) are connected to each other by means of a transversal yoke (22), on which the bucket (18) is supported. The yoke (22) is centrally provided with at least one bracket (24) for a hoisting rope (26), which leads to a hoisting winch (28) through a guide means (20; 30) positioned ahead of the bow and above the deck level at the top of a davit-like post (32).
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