RUDDER STRUCTURE AND MANUFACTURING METHOD OF SHIP

• Main Authors: MASUDA SEIJI, TAKAGISHI KENJI, FUJISAWA TAKEHARU
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2017
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MARINE PROPULSION OR STEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a technology that enables reduction of an installation space of a rudder in a ship.SOLUTION: A pusher propeller 3 is provided at a stern part 1a of a ship 1. The pusher propeller 3 is attached to the stern part 1a of a ship body so as to rotate around a rotation axis C1. The pusher propeller 3 has: a rotation center part 3a in which its center axis C1 is set to the rotation axis C; and multiple propeller blades 3b which are disposed in a direction around the rotation axis C1 and coupled to the rotation center part 3a. A front portion of the rotation center part 3a is rotatably supported by the stern part 1a. The pusher propeller 3 is rotationally driven around the rotation axis C1 in water to generate an advance thrust force of the ship 1. A rudder structure 10 includes a rudder 5 provided behind the pusher propeller 3. A recess 9 recessed to a rear side is formed at a front end 5a of the rudder 5. A rear end part 3a1 of the rotation center part 3a of the pusher propeller 3 is disposed in the recess 9.SELECTED DRAWING: Figure 1 【課題】船において舵の設置用スペースを減らせる技術を提供する。【解決手段】船１の船尾部１ａには推進プロペラ３が設けられる。推進プロペラ３は、回転軸Ｃ１まわりに回転可能に船体の船尾部１ａに取り付けられている。推進プロペラ３は、回転軸Ｃ１を中心軸とする回転中心部３ａと、回転軸Ｃ１まわりの方向に配置され回転中心部３ａに結合されている複数のプロペラ翼３ｂとを有する。回転中心部３ａの前側部分は船尾部１ａに回転可能に支持されている。推進プロペラ３は、回転軸Ｃ１まわりに水中で回転駆動されて、船１の前進推力を発生させる。舵構造１０は、推進プロペラ３の後方に設けられた舵５を備える。舵５の前端５ａには、後方への窪み９が形成されている。この窪み９に、推進プロペラ３の回転中心部３ａの後端部３ａ１が配置される。【選択図】図１