To provide a rotary rope brake device capable of appropriately applying a braking force to a main rope group even when the main rope group is twisted, and suppressing the generation of abnormal noise during non-braking.SOLUTION: A rope brake part of a rotary rope brake device has: a housing; an insertion part including an aperture in which a long side part is an arrangement direction of ropes and through which a main rope group in which the plurality of ropes are arranged in a row, which are wound around a main sheave of an elevator to move an object to be elevated in an elevating direction, is inserted movably in the elevating direction; and a braking part which is arranged in the insertion part and sandwiches the main rope group from a direction substantially parallel to the arrangement direction of the ropes to apply a braking force to the main rope group. An acquisition part acquires a torsional amount of the main rope group when the main rope group rotates approximately in the elevating direction. A rotating part rotates the housing in a torsional direction of the main rope group. A control part controls the rotation of the rotating part so that a holding direction of the braking part follows a torsional posture of the main rope group according to the torsional amount.SELECTED DRAWING: Figure 2

    【課題】主ロープ群に捻じれが存在する場合でも適切に主ロープ群に制動力が付与できるとともに、非制動時の異音の発生を抑制する、回転式ロープブレーキ装置を提供する。【解決手段】回転式ロープブレーキ装置のロープブレーキ部は、ハウジングと、エレベータのメインシーブに巻き付けられて被昇降体を昇降方向に移動させる複数本のロープが一列に配列された主ロープ群を昇降方向に移動可能に挿通するロープの配列方向を長辺部とする開口部を備える挿通部と、挿通部に配置されて主ロープ群をロープの配列方向と略平行な方向から挟持して主ロープ群に制動力を付与する制動部と、を有する。取得部は、主ロープ群が昇降方向を略中心に回転する場合の主ロープ群の捻じれ量を取得する。回転部は、ハウジングを主ロープ群の捻じれ方向に回転させる。制御部は、捻じれ量に応じて、主ロープ群の捻じれ姿勢に制動部の挟持方向が追従するように回転部を回転制御する。【選択図】図2


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    Title :

    ROTARY ROPE BRAKE DEVICE


    Additional title:

    回転式ロープブレーキ装置


    Contributors:

    Publication date :

    2023-08-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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