| 摘要 |
PURPOSE:To lower the center of gravity and reduce the trembling of a light buoy without increasing the diameter of a buoyancy body and obtain the stable and extremely economical disk type light buoy by fitting a ring-shaped weight and resistance body with a large diameter below the disk type buoyancy body. CONSTITUTION:The lower section of a tail pipe 3 is slightly protruded through the bottom plate 1' of a disk type buoyancy body 1 to form a projection 3', and a mooring ring 4 is fixed at its lower end. A stanchion 5 fixed to the tail pipe projection 3' at its upper end and radially protruded slantly downward supports a ring-shaped weight and resistance body 6 horizontally at its lower end. The tail pipe 3 penetrates the center of the buoyancy body 1 upward, its upper end is fixed to a deck 2, and a light mast 7 is erected above it across the deck 2. Even if a heavy object is mounted on the deck 2 or a tower, the whole center of gravity can be lowered by the weight 6, thus stability is improved, the disk type buoyancy body can be made small-sized and extremely economical.
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