To provide a small-size jack unit capable of withstanding a large bending stress applied from the outside in the direction of a hydraulic jack expansion and contraction.SOLUTION: A jack unit comprises a hydraulic jack that a piston rod expands and contracts in a cylinder tube, a base member connected to the piston rod, and a multi-stage cradle extended along in a separating direction when the cylinder tube separates from the base member by the piston rod extension and one end of which is connected to the cylinder tube and the other end of which is connected to the base member.SELECTED DRAWING: Figure 4

    【課題】油圧ジャッキの伸縮方向に対して外部から加えられる大きな曲げ応力に耐える、小型のジャッキユニットを提供する。【解決手段】ジャッキユニットは、シリンダチューブに対してピストンロッドが伸縮する油圧ジャッキと、ピストンロッドと連結されたベース部材と、ピストンロッドが伸長されてシリンダチューブがベース部材から離間する場合に離間方向へ沿って展開される、一端がシリンダチューブに連結され他端がベース部材に連結された多段式架台とを備える。【選択図】図4


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    Title :

    JACK UNIT


    Additional title:

    ジャッキユニット


    Contributors:

    Publication date :

    2024-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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



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