| 摘要 |
An air injection type buoy for fishing implements is provided to supply high buoyancy performance by regulating the injection amount of the air and to absorb the external shock generated by wind and waves, by a streamlined structure. An air injection type buoy(10) for installing nets or fishing implements under seawater in the predetermined depth is made of the mixture of plastic and rubber. The tensile strength of the mixture is over 450kg/cm^2 and the bending strength is over 500kg/cm^2. When the buoy is not used, the buoy is folded by exhausting the air. In using the buoy, the height of the net or fishing implements are adjusted by controlling buoyancy by regulating the injection amount of the air. |
