To provide a safety device of a high lift work vehicle capable of promptly performing traveling restriction of a vehicle body when a wheel enters the interior of a recessed portion and separates from the ground surface.SOLUTION: A front wheel 3a is mounted to be moved upward and downward with respect to a vehicle body by a steering wheel support bracket 210 supporting the front wheel 3a to be freely rotatable and a bracket support pin 220 supporting the steering wheel support bracket 210 to be relatively moved upward and downward with respect to the vehicle body. A limit switch 230 for detecting a downward movement of the front wheel 3a is installed on the vehicle body. A traveling regulation device is also provided for regulating the traveling of a vehicle body 2 when the downward movement of the front wheel 3a is detected by the limit switch 230.SELECTED DRAWING: Figure 13

    【課題】車輪が凹部内に進入して地面から離れる状況に至った際に車体の走行規制を速やかに行うことが可能な高所作業車の安全装置を提供する。【解決手段】前輪3aは、前輪3aを回転自在に支持する操舵輪支持ブラケット210と、操舵輪支持ブラケット210を車体に対し上下に相対移動可能に支持するブラケット支持ピン220とにより、車体に対し上下移動可能に取り付けられる。車体には、前輪3aが下方に移動したことを検出するリミットスイッチ230が設置される。また、リミットスイッチ230により前輪3aの下方への移動が検出されたときに、車体2の走行を規制する走行規制装置を備える。【選択図】図13


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    Title :

    SAFETY DEVICE OF HIGH LIFT WORK VEHICLE


    Additional title:

    高所作業車の安全装置


    Contributors:

    Publication date :

    2020-07-09


    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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