To provide a four-leg block reversing device in which the workability is good because placing in a normal stance is stable and the normal stance can be changed to an upside-down stance and bow tie stance, and that does not need a large drive mechanism and can simplify a device configuration.SOLUTION: The four-leg block reversing device is characterized by including a stopper arm 83 that can be changed selectively between: an upside-down stance holding position in which, at the lower position of right and left rails 81 that support two legs a and b of three legs a, b and c which form the triangle bottom of a four-leg block B hung by a crane, the leg c is held in an upside-down stance at the position for which the leg c is rotated downward between the two rails 81 and becomes the upside-down stance; and a retract position for which the leg c is rotated downward between the two rails 81 and reaches a bow tie position.SELECTED DRAWING: Figure 4

    【課題】 正姿勢の置き方を一定とし、同じ正姿勢の位置から倒立姿勢でも、蝶々姿勢でも変更できる作業性の良好で、しかも大きな駆動機構が不要で、装置構成が簡素化できる4脚ブロックの反転装置を提供する。【解決手段】 クレーンで吊持した4脚ブロックBの三角形の底面を構成する3つの脚a、b、cのうちの2つの脚a、bを支持する左右2本のレール81の下方位置に、残りの1つの脚cが前記2本のレール間81で下向きに回転して倒立姿勢まで回転した位置で残りの1つの脚cを倒立姿勢に保持する倒立姿勢保持位置と、残りの1つの脚cが前記2本のレール81間で下向きに蝶々位置まで回転する退避位置とに選択的に位置変更可能なストッパーアーム83を設けたことを特徴とする。【選択図】 図4


    Access

    Download


    Export, share and cite



    Title :

    FOUR-LEG BLOCK REVERSING DEVICE


    Additional title:

    4脚ブロックの反転装置


    Contributors:
    NOMURA YUKO (author) / NISHIO KEITA (author) / KAJI KUNIO (author)

    Publication date :

    2020-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E02B HYDRAULIC ENGINEERING , Wasserbau / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



    DEFORMED BLOCK REVERSING DEVICE AND DEFORMED BLOCK INSTALLING METHOD

    NOMURA YUKO / KAJI KUNIO | European Patent Office | 2018

    Free access

    Reversing mechanism of lever block

    QIAN YANGTIAN | European Patent Office | 2021

    Free access

    Synchronous reversing four-propeller helicopter

    JIANG FUYU | European Patent Office | 2021

    Free access

    REVERSING DEVICE AND REVERSING METHOD

    SEKI FUMIHIKO | European Patent Office | 2016

    Free access

    MOTORCYCLE REVERSING DEVICE

    LEE BAEK IN | European Patent Office | 2024

    Free access