APPARATUS AND METHOD FOR CLEANING OF SEA BOTTOM

PROBLEM TO BE SOLVED: To provide an apparatus for cleaning of the sea bottom, with which an auxiliary float is not needed, damage of outriggers is eliminated, a pressing force of a cutter is readily and surely adjusted, and mechanical and water flow cleaning by the cutter are carried out at the same time. SOLUTION: A caterpillar made of synthetic resin plate pieces is wound on a capacity wound hull float and an inner space boat-shaped body is divided into compartments by arranging a steel product framework. The outriggers comprise a chain wound in the middle on a chain stretching device between a cylindrical pipe and a cylindrical outer pipe having a hydraulic shock absorber and a drive fork body comprises the arranged cutters obtained by inserting round rod bodies having cutting blades into the lower half parts of the guide cylinders having an upper half part engaged with a hydraulic cylinder. The guide cylinders are equipped with water flow ejecting nozzles connected to an air pipe. Bolts and nuts are fixed through a connector to the flexible boom of a back hoe and a stock bar is fixed to a vertical shaft tube of the drive fork body in the cut recessed part of a covering cylinder at the connector side. COPYRIGHT: (C)2003,JPO