To provide a safety device for a work vehicle that can prevent wheel wear and stepped actuation during a stationary steering operation without rolling the vehicle down a slope, even for a four-wheel steering type work vehicle.SOLUTION: When a steering operation (stationary steering operation) by a steering dial is performed while a traveling operation by a traveling operation lever is not performed in a vehicle body posture where the inclination angle of a vehicle body is less than a set inclination angle, the brake actuation of front wheels 12, 12 and rear wheels 13, 13 by front wheel brake cylinders 18, 18 and rear wheel brake cylinders 19, 19 is released, and control which causes the steering dial to perform the turning actuation of the front wheels 12, 12 and the rear wheels 13, 13 according to the steering operation is performed.SELECTED DRAWING: Figure 4

    【課題】4輪操舵型の作業用車両であっても、車両を傾斜下方に転がり走行させることなく、据え切り操作時の車輪の摩耗や段付き作動を防止することができる作業用車両の安全装置を提供する。【解決手段】車体の傾斜角度が設定傾斜角未満の車体姿勢において、走行操作レバーによる走行操作が行われていない状態で操舵ダイヤルによる舵取り操作(据え切り操作)が行われたときには、前輪ブレーキシリンダ18,18および後輪ブレーキシリンダ19,19による前輪12,12および後輪13,13のブレーキ作動を解除させるとともに、操舵ダイヤルにより当該舵取り操作に応じた前輪12,12および後輪13,13の転舵作動を行わせる制御を行うように構成される。【選択図】図4


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    Titel :

    SAFETY DEVICE FOR WORK VEHICLE


    Weitere Titelangaben:

    作業用車両の安全装置


    Beteiligte:
    SATO MITSURU (Autor:in)

    Erscheinungsdatum :

    16.01.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B62D MOTOR VEHICLES , Motorfahrzeuge / 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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