PROBLEM TO BE SOLVED: To provide an underwater propulsion device of waterborne vehicles with reduced load on the motor.SOLUTION: An underwater propulsion device 20 of waterborne vehicles with an on-water floating part 2 that a user boards is connected to the on-water floating part 2 via a prop 3 and extends in the propulsion direction, and comprises a hollow main body part 21 the inside of which is partitioned into a first chamber 27 of the bow side and a second chamber 28 of the stern side, a motor 22 housed in the first chamber 27, a propeller 23 housed in the second chamber 28, and a power transmission shaft 24 extending in the propulsion direction and connecting the propeller 23 with the motor 22. The first chamber 27 is waterproofed, the second chamber 28 has a water-conveyance hole 29 formed closer to the bow side than the propeller 23 and formed in the circumferential direction of the power transmission shaft 24, and a jet flow hole 30 formed at the edge of the stern side, and the propeller 23 is formed such that its outer diameter is smaller than the inside diameter of the first chamber 27.SELECTED DRAWING: Figure 7

    【課題】モータへの負荷が低減された水上乗り物の水中推進装置を提供する。【解決手段】使用者が搭乗する水上浮遊部2を有する水上乗り物1の水中推進装置20は、支柱3を介して水上浮遊部2に連結され、推進方向に延び、内部が船首側の第1室27と船尾側の第2室28とに区画された中空の本体部21と、第1室27に収容されるモータ22と、第2室28に収容されるプロペラ23と、推進方向に延びてモータ22とプロペラ23を接続する動力伝達軸24と、を備え、第1室27は、防水構造とされ、第2室28は、プロペラ23よりも船首側で動力伝達軸24の周方向に形成される導水口29と、船尾側の端に形成される噴流口30とを有し、プロペラ23は、その外径が第1室27の径よりも小さく形成される。【選択図】図7


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    Titel :

    UNDERWATER PROPULSION DEVICE OF WATERBORNE VEHICLE


    Weitere Titelangaben:

    水上乗り物の水中推進装置


    Beteiligte:
    AOKI HIDEAKI (Autor:in) / OUCHIDA TAKASHI (Autor:in)

    Erscheinungsdatum :

    23.08.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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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