PROBLEM TO BE SOLVED: To provide a buoyancy adjuster in which a net part is floated to enable recovery even if a landing net is dropped in the water by mistake, and the net part can be maintained in the vicinity of the surface of the water even if there are undulation and intense waves and the fish can easily be scooped.SOLUTION: If a net frame buoyancy adjuster 4 and a handle buoyancy adjuster of a landing net 5 are mounted in a net frame 2 of a net part 9 mounted on the tip of a landing net and a handle of a landing net 1 proximal to the net part 9, a landing net 10 floats on the water surface with the net part 9 as the top and the recovery becomes possible. Also, when the caught fish is scooped with this landing net 10 on a boat and a breakwater or in a rocky place, even if there are undulation and intense waves, the net part 9 can be floated in parallel to the water surface in the vicinity of the water surface, and the fish can be scooped easily.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】玉網を誤って水中に落としても網部を浮かせ回収を可能にし、うねりや激しい波があっても網部を水面付近に維持でき、楽に魚を掬うことができる浮力調整器を提供する。【解決手段】玉網の先端部に取り付けられた9網部の2網枠や9網部に近接する1玉網の柄に4網枠浮力調整器や5玉網の柄浮力調整器を取り付ければ、10玉網は9網部を上にして水面に浮き、回収が可能となる。また船上や防波堤もしくは岩場でこの10玉網を持って釣り上げた魚を掬う場合、うねりや激しい波があっても9網部を水面付近に水面と平行に浮かせることができ、魚を楽に掬うことができる。【選択図】図1
