PROBLEM TO BE SOLVED: To provide a pit ladder which can be stored under a land sill when not in use, and which can be easily installed to provide a wide movable range thereof in a direction to facilitate ascending and descending when in use.SOLUTION: A pit ladder comprises: a pair of longitudinal members 17a, 17b; and traverse members 18 attached to the longitudinal members 17a, 17b, at a predetermined interval. The pit ladder also includes: a ladder body capable of being stored while obliquely erected under a landing sill 14 when not in use; and turning coupling means 22 having at least two rotational axes connecting an upper end of each one of the longitudinal members 17a to the landing sill 14 to allow the ladder body to be moved up to a use position by performing at least a two-stage combined turning operation.SELECTED DRAWING: Figure 1

    【課題】不使用時には、ピット梯子を乗場敷居の下に保管することができ、使用時には、梯子の可動範囲を大きくとり、登り降りし易い方向に容易に設置できるようにする。【解決手段】本発明の実施形態によるピット梯子は、一対の縦部材17a、17bと、縦枠17a、17bの間に所定の間隔をおいて取り付けられた踏み段をなす横部材18と、からなり、梯子不使用時には、乗場敷居14の下に斜めに立った姿勢で収納される梯子本体と、少なくとも2段階の旋回動作を組み合わせて前記梯子本体を使用位置まで取り出せるように、一方の縦部材17aの上端部を乗場敷居14に連結する、少なくとも2つの旋回軸を有する旋回連結手段22と、を備えている。【選択図】図1


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    Title :

    PIT LADDER DEVICE FOR ELEVATOR


    Additional title:

    エレベータのピット梯子装置


    Contributors:

    Publication date :

    2016-06-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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