To provide an overwinding prevention device with a simpler configuration to surely prevent the overwinding of a rope regardless of a rope winding number.SOLUTION: An overwinding prevention device of a crane device capable of setting multiple types of the winding number of a rope 22 between a rope hanging part where the rope 22 hangs down and a hanging tool, comprises a detection part 21f which is fixed to a prescribed position where the rope 22 sent out when moving the hanging tool vertically with respect to the rope hanging part passes, and detects a different color according to the specified winding number of the rope 22. The rope 22 has a coloring part 22a colored with a detectable color by the detection part 21f in a part adjacent to the detection part 21f for each of the multiple types of the winding number, at the state when a distance between the rope hanging part and the hanging tool is a prescribed distance.SELECTED DRAWING: Figure 2

    【課題】より簡便な構成で、ロープの掛数に関わらずロープの過巻状態を確実に防止する過巻防止装置を提供する。【解決手段】ロープ22が垂下されるロープ垂下部と吊り具との間におけるロープ22の掛数を複数種類設定可能なクレーン装置の過巻防止装置であって、ロープ垂下部に対して吊り具を上下方向に移動させる際に送られるロープ22が通過する所定位置に固定され、設定されたロープ22の掛数に応じて異なる色を検出する検出部21fを備え、ロープ22は、ロープ垂下部と吊り具との距離が所定距離となる状態で、複数種類の掛数のそれぞれにおける検出部21fに隣接する部分に、検出部21fによって、検出可能な色で着色された着色部22aを有している。【選択図】図2


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    Title :

    OVERWINDING PREVENTION DEVICE


    Additional title:

    過巻防止装置


    Contributors:

    Publication date :

    2020-05-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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