To minimize swaying of a suspended load by cutting the ground at an appropriate timing regardless of the swaying of a hull.SOLUTION: A lifting method of a suspended load on a ship includes: attaching two laser beam irradiation means 30 to both sides of a sheave 18 at a tip of a boom 16 of a crane 14 so that they always point vertically downward regardless of the swaying state of the ship; adjusting a position of the tip of the boom 16 so that the sheave 18 is positioned vertically above the center of gravity of the suspended load based on a laser beam 32 irradiated from laser beam irradiation means 30 when the suspended load is hung on a hook 22 of the crane 14; and performing the ground cutting at a timing that an irradiation center position 32c of the laser beam 32 overlaps with the center of gravity of the suspended load. Hereby, the swaying of the suspended load can be minimized because the ground cutting can be performed at the moment when the position of the sheave 18 and the position of the center of gravity of the suspended load are in a vertical relationship.SELECTED DRAWING: Figure 1

    【課題】船体の動揺の如何を問わず適切なタイミングで地切りを行うことで、吊り荷の動揺を最小限に抑制する。【解決手段】船上の吊り荷の吊り上げ方法は、クレーン14のブーム16先端のシーブ18の両側方に、船の揺れの状態の如何に関わらず常に鉛直下方を向くように、2つのレーザ光照射手段30を取り付ける。そして、クレーン14のフック22に対して吊り荷を掛止する際に、レーザ光照射手段30から照射したレーザ光32を拠り所にして、吊り荷の重心位置の鉛直上方にシーブ18が位置するように、ブーム16先端の位置を調整し、更に、レーザ光32の照射中心位置32cが、吊り荷の重心位置と重なるタイミングで地切りを行う。これにより、シーブ18の位置と吊り荷の重心位置とが鉛直関係になった瞬間に、地切りを行うことができるため、吊り荷の動揺を最小限に抑制することができる。【選択図】図1


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    Titel :

    LIFTING METHOD OF SUSPENDED LOAD ON SHIP AND LIFTING AUXILIARY SYSTEM


    Weitere Titelangaben:

    船上の吊り荷の吊り上げ方法及び吊り上げ補助システム


    Beteiligte:
    KATO NAOYUKI (Autor:in) / AOYAMA TAKEMICHI (Autor:in)

    Erscheinungsdatum :

    2020-02-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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