PROBLEM TO BE SOLVED: To provide a structure capable of avoiding in advance, abnormality on a one brake operation in a work vehicle such as a tractor.SOLUTION: A work vehicle 1 comprises: an engine 5 which is mounted on a travel machine body 2; left and right travel parts 4 which receive motion force from the engine 5 and move forward and backward; left and right brake mechanisms 563 which brake the left and right travel parts 4; and left and right brake operation tools 35 which act the left and right brake mechanisms 563. The work vehicle 1 further comprises: a connection member 59 for always connecting the left and right brake operation tools 35; a connection release operation tool 57 for temporarily releasing connection by the connection member 59; and a connection monitor sensor 850 for monitoring a state of the connection member 59. The work vehicle notifies an operator of a warning, when a non-connection state of the connection member 59 is continued for a prescribed period or longer, based on a signal from the connection monitor sensor 850.SELECTED DRAWING: Figure 20

    【課題】トラクタのような作業車両において、片ブレーキ操作における異常を未然に回避さえる構成を提供する。【解決手段】作業車両1は、走行機体2に搭載するエンジン5と、エンジン5からの動力を受けて前後進する左右の走行部4と、左右の走行部4を制動させる左右のブレーキ機構563と、左右のブレーキ機構563を作用させる左右のブレーキ操作具35とを備える。左右のブレーキ操作具35を常時連結させる連結部材59と、連結部材59による連結を一時的に解除させる連結解除操作具57と、連結部材59の状態を監視する連結監視セン850とを備える。連結監視センサ850からの信号に基づき、連結部材59による非連結状態が所定時間以上継続したことを確認すると、オペレータに警報を報知する。【選択図】図20


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    Title :

    WORK VEHICLE


    Additional title:

    作業車両


    Contributors:
    KUDO JUNKO (author) / LI SHEN (author)

    Publication date :

    2017-01-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY , Steuer- oder Regelvorrichtungen oder Steuer- oder Regelsysteme gekennzeichnet ausschließlich durch mechanische Einzelheiten / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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