PROBLEM TO BE SOLVED: To provide a fishing gear device and a fishing method of trolling for large fish that are effective for reducing a risk and cost in safe improvement and consumption suppression of fuel oil, etc.SOLUTION: A fishing gear device of the present invention is provided in which an unmanned aerial vehicle performing autonomous navigation according to a stored navigation path while receiving/transmitting a position information signal and positioning an own aircraft position is made to pull a fishing line to catch large fish of tunas, etc. When the tunas swallow bait and a pull being greater than a preset force is sensed by a bite sensing device, an airbag system is started and an umbrella-like braking device is opened. The movement of the tunas to spit out a fishhook and escape occurs, and a series of start operation of the braking device and resistance force generated becomes reaction force against the movement of the tunas. The hooking operation corresponding to the bite is performed automatically, and the tunas can reliably be caught. Thereafter, it is reported to a fisherman waiting on fishing boats, and the fisherman recovers the fishing gear device along with the tunas being caught by the help of the position information signal.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2018,JPO&INPIT【課題】 安全性の向上と、燃料油の消費抑制など、リスクやコストの低減に効果がある大型魚類向けトローリング用の漁具装置及び漁法を実現することである。【解決手段】 本発明は、位置情報信号を受発信し、自機位置を測位しながら、記憶した航行経路に従い自律航行する無人航行機に釣り糸を牽引させて、鮪等の大型魚類の捕獲を行うための漁具装置である。鮪等が餌を飲み込み、予め設定された力を超える引きが魚信感知装置に感知された時、エアバッグ装置が起動され、傘状の制動装置が開く。釣針を吐きだして逃れようとする鮪等の動きに対し、制動装置の一連の起動動作と発生する抵抗力が鮪等の動きに対する反力となり、魚信に対応するフッキング動作が自動的に行われ、鮪等を確実に捕獲することができる。その後、漁船等で待機する漁業者に通報され、漁業者は位置情報信号を頼りに、掛かった鮪等とともに本機を回収する。【選択図】図6
