To provide a jack capable of improving lifting performance while suppressing the physique of each part of a constitution.SOLUTION: A hydraulic cylinder 10 is configured by engaging a cylinder roller 11r supported at the rear end of a cylinder body 11 with a guide rail 2d so as to be movable back and forth. A link mechanism 20 comprises: an operation link 21 which is rotatably supported at a front end on the lateral side 2c of a frame 2 and rotatably connected at a rear end to the front end of a piston rod 12; a main link 22 which intersects at a longitudinal intermediate part and is rotatably connected to the operation link 21, engages a main link roller 22r supported at the rear end with the guide rail 2d so as to be movable back and forth, and supports a pedestal 30 on the front end; and a cylinder stay link 23 which is rotatably and coaxially connected at the rear end to a cylinder roller 11r by a cylinder roller shaft 11p at the ear end of a cylinder body 11 and connected at the front end to the main link 22 so as to be rotatable at the longitudinal intermediate part.SELECTED DRAWING: Figure 6

    【課題】構成各部の体格を抑制しつつ昇降能力を向上可能なジャッキを提供する。【解決手段】油圧シリンダ10は、シリンダ本体11後端に軸支されたシリンダローラ11rをガイドレール2dに前後移動可能に係合してなり、リンク機構20は、前端がフレーム2の側辺部2cに回動可能に支持され、後端がピストンロッド12前端に回動可能に連結される作動リンク21と、作動リンク21と前後方向中間で交差し且つ回動可能に連結され、後端に軸支された主リンクローラ22rをガイドレール2dに前後移動可能に係合すると共に、前端に受台30を支持してなる主リンク22と、後端がシリンダ本体11後端のシリンダローラ軸11pでシリンダローラ11rと同軸に回動可能に連結され、前端が主リンク22の前後方向中間で回動可能に連結されるシリンダステイリンク23と、を備える。【選択図】図6


    Access

    Download


    Export, share and cite



    Title :

    JACK


    Additional title:

    ジャッキ


    Contributors:

    Publication date :

    2020-10-22


    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



    JACK AND JACK SYSTEM

    GRIBNITZ KURT GEORG / VAN DER MERWE JAN HENDRIK | European Patent Office | 2018

    Free access

    JACK DEVICE AND JACK METHOD

    YORIGAMI SHIGEYUKI / NISHIHARA SUNAO | European Patent Office | 2017

    Free access

    Jack

    AINARA GOMEZ MARZANA | European Patent Office | 2016

    Free access

    JACK

    MUTKOVIC JAN | European Patent Office | 2024

    Free access

    JACK

    CATTINI GIULIANO | European Patent Office | 2019

    Free access