| 摘要 |
Provided is a flexible buoy lightweight, excellent in workability, and excellent in durability preventing the buoy from being damaged by contact and collision with another object. An airtight hollow structure ( 2 ) is formed of a flexible membrane made of rubber or resin, in which a reinforcement layer (C) is buried. A flange opening ( 4 ) having a gas inlet is fixed to at least one position of the hollow structure ( 2 ). Buoyancy thereof can be controlled by using an internal pressure of a gas injected in the hollow structure ( 2 ).
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