| 摘要 |
PURPOSE:To enable a bulge to be freely mounted and demounted, by a method wherein a down arm on the ship hull side and an up arm on the bulge side are engaged with each other by means of buoyance produced by drainage of water in the bulge, and are secured by means of a securing arm to produce necessary buoyance. CONSTITUTION:A down buoyancy receiving arm 4 on the ship hull side is mounted to the side of a ship hull, and an up buoyance receiving arm 5 on the bulge side is mounted to the side of a bulge 2. After water in poured in the bulge 2, the bulge is tugged on ocean sea, water in the bulge 2 is drained in a condition in which the bulge makes contact with the side of the outer board of the ship hull, and by means of the resultant buoyancy, the two buoyancy receiving arms 4 and 5 are engaged with each other. Thereafter, the two arms are tightened against each other through a securing arm 6 by means of a bolt. The bulge 2, serving to ensure necessary buoyance, is removably mounted.
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