To provide a lifting device structure capable of automatically rotating and lifting a gangway footplate with a simple configuration and reducing impact caused when placing the gangway footplate on a load transfer surface of a truck and the like.SOLUTION: A gangway footplate structure attached to a lifting device includes: a rotation shaft 25 provided on an end part of a table part 10; a gangway footplate 20 whose base part 26 is connected to the rotation shaft 25 to be rotatable around the rotation shaft 25; a torsion spring 24 provided on the rotation shaft 25; and a flip-up roller 31 provided on an upper end part of a support column 30 provided to extend in a vertically upper direction from a bottom part of a pit 40. When the table part 10 is lowered, the flip-up roller 31 is brought into contact with a gangway footplate lower surface 22 to press it. The gangway footplate 20 is rotated such that a tip part 27 of the gangway footplate 20 is moved in the vertically upper direction. When the table part 10 is moved up, the flip-up roller 31 is separated from the gangway footplate lower surface 22 and the gangway footplate 20 is rotated such that the tip part 27 of the gangway footplate 20 is moved in a vertically lower direction.SELECTED DRAWING: Figure 2

    【課題】簡単な構成で自動的に渡り板を回動させ持ち上げることができ、また、渡り板がトラック等の荷物移載面に置かれる際の衝撃を低減することができる昇降装置構造を提供することを目的とする。【解決手段】テーブル部10の端部に設けられた回動軸25と、回動軸25に基部26が接続され、回動軸25を中心に回動可能な渡り板20と、回動軸25に設けられたねじりばね24と、ピット40の底部から鉛直上方向に延びるように設けられた支柱30の、上端部に設けられた跳ね上げローラ31とを備え、テーブル部10が下降したときに、跳ね上げローラ31が渡り板下面22に接触して押圧し、渡り板20の先端部27が鉛直上方向に移動するように渡り板20が回動し、テーブル部10が上昇したときに、跳ね上げローラ31が渡り板下面22と離隔し、渡り板20の先端部27が鉛直下方向に移動するように渡り板20が回動する。【選択図】図2


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    Title :

    GANGWAY FOOTPLATE STRUCTURE ATTACHED TO LIFTING DEVICE


    Additional title:

    昇降装置付帯の渡り板構造


    Contributors:

    Publication date :

    2023-03-08


    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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