To provide a propeller guard, a vessel, and a design method for propeller guard for vessel capable of preventing damage to a propeller without deteriorating propulsion performance of the vessel.SOLUTION: A propeller guard 3 includes: a first partition unit 31 extending within a range of approximately 1.1D to 1.3D vertically downward from a propeller rotational center of a propeller 2 with rotation trajectory radius defined as D, and approximately 0.5D to 0.8D in the horizontal direction from the propeller rotational center; a second partition unit 32 extending vertically upward along an outer periphery end edge of the propeller to an end edge at a height position of approximately 0.4D to 1.0D vertically upward from the propeller rotational center in a position separated from the propeller rotational center by only approximately 1.1D to 1.3D; and a third partition unit 33 extending vertically upward so as to be connected with a hull within a range of approximately 0.6D to 1.0D in the horizontal direction from the propeller rotational center.SELECTED DRAWING: Figure 1

    【課題】船舶の推進性能を低下させることなく、プロペラの破損を防止することができるプロペラガード、船舶、及び船舶用プロペラガードの設計方法を提供する。【解決手段】プロペラガード3は、回転軌道半径がDと定義されるプロペラ2のプロペラ回転中心から鉛直下方に略1.1D〜1.3D、プロペラ回転中心から水平方向に略0.5D〜0.8Dの範囲で延在する第1の区画部31、プロペラ回転中心から略1.1D〜1.3Dだけ離間した位置において、プロペラ回転中心から鉛直上方に略0.4D〜1.0Dの高さ位置である終端まで、プロペラの外周端縁に沿って鉛直上方に向けて延在する第2の区画部32、プロペラ回転中心から水平方向に略0.6D〜1.0Dの範囲で船体と接続されるように鉛直上方に向けて延在する第3の区画部33から構成される。【選択図】図1


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    Title :

    PROPELLER GUARD FOR VESSEL, VESSEL, AND DESIGN METHOD FOR PROPELLER GUARD FOR VESSEL


    Additional title:

    船舶用プロペラガード、船舶、及び船舶用プロペラガードの設計方法


    Contributors:

    Publication date :

    2021-05-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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