Hydraulic jack (1, 1′) comprising a main body (2), an articulated lifting arm (3) and a hydraulic cylinder (4) connected to the main body (2) by a first articulated connection (5) and to the lifting arm (3) by a second articulated connection (6), where the hydraulic jack (1, 1′) comprises a lever member (7, 7′) disposing of at least one locking zone (14) for receiving an element that is solidary to the lifting arm (3) and that serves as a stop, where the lever member (7, 7′) is articulately connected to the first articulated connection (5). The element solidary to the lifting arm (3) that serves as a stop and is capable of lodging in at least one locking zone (14) is comprised in the second articulated connection (6). This way, a mechanical locking system is provided which presents optimal performance while minimizing the number of necessary components.


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    Title :

    Hydraulic jack with locking


    Contributors:

    Publication date :

    2016-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / B66C Krane , CRANES



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