A telescopic boom with a main section and telescopic boom sections carried by the main section. A first telescopic boom section (3a) is telescopically mounted in the main section (2) and displaceable in relation to it under the effect of a first hydraulic cylinder (4a) configured to act between the first telescopic boom section and the main section. Each further telescopic boom section (3b, 3c) is telescopically mounted in an adjacent telescopic boom section (3a, 3b) and axially displaceable in relation to it under the effect of another hydraulic cylinder (4b, 4c) which is configured to act between this further telescopic boom section and this adjacent telescopic boom section. The telescopic boom comprises a synchronizing system with one or more elongated and flexible synchronizing members (10a, 10b) and direction changing members (12a-12d), which co-operate to synchronize the axial displacements of the telescopic boom sections effected by said hydraulic cylinders.


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    Title :

    TELESCOPIC BOOM AND HYDRAULIC CRANE COMPRISING A TELESCOPIC BOOM


    Additional title:

    TELESKOPAUSLEGER UND HYDRAULISCHER KRAN MIT EINEM TELESKOPAUSLEGER
    FLÈCHE TÉLESCOPIQUE ET GRUE HYDRAULIQUE COMPRENANT UNE FLÈCHE TÉLESCOPIQUE


    Contributors:

    Publication date :

    2020-12-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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