To provide a steering gear for a ship capable of restricting a steering angle of an outboard engine propulsion unit while reducing constraints on a mounting range on a hull even when adopting a hydraulic type.SOLUTION: A steering gear 12 for a ship comprises rotating members 32, 33 with engagement parts 44, 47 engaging with a protrusion 29 provided on a pinion member 26, a hydraulic driving member 31 to move the engagement parts 44, 47, a directional control valve 51 to switch the flowing direction of the hydraulic oil between a separately installed pump 50, and the hydraulic driving member 31, and a steering angle restriction control part 63 to control the directional control valve 51 so that the positions of the engagement parts 44, 47 are set to a position P without steering angle restriction when it is determined that there is no situation in which decrease in stability of a hull 2 is expected, and to control the directional control valve 51 so that the positions of the engagement parts 44, 47 are set to a position Q with steering angle restriction at which the steering angle of an outboard engine propulsion unit 3 is more restricted than at the position P without steering angle restriction when it is determined that there is a situation in which decrease in stability of the hull 2 is expected.SELECTED DRAWING: Figure 3
【課題】油圧式を採用する場合でも、船体の搭載範囲に与える制約を軽減しつつ、船外機推進ユニットの舵角制限を行うことができる船舶用操舵装置を提供する。【解決手段】船舶用操舵装置12は、ピニオン部材26に設けられた突起部29と係合する係合部44,47を有する回動部材32,33と、係合部44,47を移動させる油圧駆動部材31と、別装ポンプ50と油圧駆動部材31との間で作動油が流れる方向を切り換える方向制御弁51と、船体2の安定性の低下が予想される状況でないと判断されたときは、係合部44,47の位置を舵角制限無し位置Pに設定するように方向制御弁51を制御し、船体2の安定性の低下が予想される状況であると判断されたときは、係合部44,47の位置を舵角制限無し位置Pよりも船外機推進ユニット3の舵角を制限するような舵角制限有り位置Qに設定するように方向制御弁51を制御する舵角制限制御部63とを備える。【選択図】図3
STEERING GEAR FOR SHIP
船舶用操舵装置
2021-11-01
Patent
Electronic Resource
Japanese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |