PROBLEM TO BE SOLVED: To provide a hydraulic work vehicle capable of quickly stopping actuation of a working device to secure safety when discrepancy occurs between the control content of a hydraulic actuator and actuation of the actuator detected by a sensor part.SOLUTION: A hydraulic work vehicle in this invention comprises: a working device having a hydraulic actuator provided on an undercarriage and actuating by a solenoid control valve; a controller controlling actuation of the hydraulic actuator by sending an actuation signal to the solenoid control valve; and a noncontact switch provided at a position capable of detecting actuation of the hydraulic actuator and sending a detection signal of a detected actuation to the controller. The controller is characterized by controlling to shut off energization to the controller when discrepancy occurs between the control content of the actuator and the actuation of the hydraulic actuator detected by the noncontact switch.SELECTED DRAWING: Figure 3

    【課題】油圧アクチュエータの制御内容と、センサ部により検出される油圧アクチュエータの作動との間で矛盾が生じて異常作動した場合に、直ちに作業装置の作動を停止させて安全性を確保できる油圧作業車を提供する。【解決手段】本発明の油圧作業車は、車台上に設けられ、電磁制御弁により作動する油圧アクチュエータを有する作業装置と、前記電磁制御弁に作動信号を送ることにより前記油圧アクチュエータの作動を制御する制御装置と、前記油圧アクチュエータの作動を検出可能な位置に設けられ、検出した当該作動の検出信号を前記制御装置に送る無接点スイッチとを備えた油圧作業車であって、前記制御装置は、前記油圧アクチュエータの制御内容と、無接点スイッチにより検出される前記油圧アクチュエータの作動との間で矛盾が生じた場合に、当該制御装置への通電を遮断するように制御することを特徴とする。【選択図】図3


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    Title :

    HYDRAULIC WORK VEHICLE


    Additional title:

    油圧作業車


    Contributors:

    Publication date :

    2017-09-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B65F GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE , Sammeln oder Entfernen von Haus- oder ähnlichem Müll / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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