PROBLEM TO BE SOLVED: To provide a derailment prevention device which prevents a rail travel machine from derailing from a rail and avoids hindering travelling of the rail travel machine on the rail.SOLUTION: A derailment prevention device 100 includes: a fixed frame 110 which is fixed to a ceiling crane having wheels that roll on rails 2; a movable frame 120 supported by the fixed frame 110 and configured to move relative to the fixed frame 110 in a vertical direction; a wheel part 140 which is provided at a lower end part of the movable frame 120 and contacts with an upper surface of the rail 2; and a compression spring 130 which biases the movable frame 120 and the wheel part 140 toward the upper surface of the rail 2.SELECTED DRAWING: Figure 5

    【課題】軌条走行機械のレールからの脱輪を防止できるとともに、軌条走行機械のレール上での走行を妨げることがない脱輪防止装置を提供する。【解決手段】脱輪防止装置100は、レール2上を転動する車輪を有する天井クレーンに固定される固定フレーム110と、固定フレーム110に支持され、固定フレーム110に対して上下方向に移動可能である移動フレーム120と、移動フレーム120の下端部に設けられ、レール2の上面と当接する車輪部140と、移動フレーム120及び車輪部140をレール2の上面に向けて付勢する圧縮ばね130と、を備える。【選択図】図5


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    Title :

    DERAILMENT PREVENTION DEVICE


    Additional title:

    脱輪防止装置


    Contributors:

    Publication date :

    2017-08-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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