A left vehicle width expanding/contracting device (15) expands and contracts a vehicle width of a lower traveling structure (4) by moving a left side frame (6) in the right-and-left direction relative to a center frame (5) by extending and contracting a rod (16B) of a hydraulic cylinder (16), and similarly, a right vehicle width expanding/contracting device expands and contracts the vehicle width of the lower traveling structure (4) by moving a right side frame in the right-and-left direction. The hydraulic cylinders (16) of the left and right vehicle width expanding/contracting devices (15) are each located between a drive wheel (9) and an idler wheel (10) and each mounted on the side frame (6).


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    Title :

    LOWER TRAVELING BODY FOR CONSTRUCTION MACHINE


    Additional title:

    UNTERER FAHRKÖRPER FÜR EINE BAUMASCHINE
    CORPS MOBILE INFÉRIEUR POUR ENGIN DE CHANTIER


    Contributors:

    Publication date :

    2025-05-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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