Provided is a steering system for construction, transportation, and agricultural machines that can be steered using a steering wheel and lever (or automatic steering) in which a mechanism for prioritizing steering wheel operation can be realized that has a simple configuration and that always operates stably, the steering system comprising steering cylinders 1, a steering valve 2, a pump 3, a steering wheel control valve 4, an electromagnetic control valve 5 for the lever or automatic steering, a steering wheel prioritizing valve 6, and a switching valve 7, for sensing the load pressure generated when the steering wheel control valve 4 is operated and switching the steering wheel prioritizing valve 6 using the load pressure, wherein the switching valve 7 for switching the steering wheel prioritizing valve 6 has a two-port, two-position configuration in which the fluid draining passage of the steering wheel prioritizing valve 6 is closed using the load pressure generated when the steering wheel control valve 4 is operated.


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    Title :

    STEERING DEVICE FOR CONSTRUCTION/TRANSPORT/FARM MACHINE


    Additional title:

    LENKVORRICHTUNG FÜR BAU-/TRANSPORT-/LANDMASCHINEN
    DISPOSITIF DE DIRECTION POUR UNE MACHINE DE CONSTRUCTION/DE TRANSPORT/D'AGRICULTURE


    Contributors:
    IRIE SADAO (author)

    Publication date :

    2020-08-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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