Provided is a combined fork arm on a freight forklift of a telescopic boom forklift truck. The combined fork arm is mainly formed by fork fingers, fork arm connections, fork arm groups, a fork arm connection lifting device, a fork arm connection propulsion device, a fork box, a locking device, and a control system. The fork arm can move objects which have space under the lower edge, and can also move objects which have no space under the lower edge. A fork arm connection is formed by a fork handle connecting one to four fork arms. A fork arm group is formed by two fork arm connections. Each fork arm connection is provided with a set of independent lifting device and propelling device. When the combined fork arm carries box-type or bag-type cargos which have no space below, the freight forklift is inserted into the fork box and is locked by the locking device, a fork finger wedge of a fork arm connection is inserted to a little gap under the cargo, the fork arm connection pries upward to expand the gap, and the fork finger of the other fork arm connection immediately inserts into the pried gap, and pries and inserts in turns. Then, the two fork arms rise in turns and hold a cargo, descend the cargo, carry forward and lift the cargo, until the fork is inserted under the cargo. When the combined fork arm unloads a cargo, the two fork arms hold the cargo without moving, drop the cargo, and move backward in turns, until the cargo is put on a placing point.


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    Title :

    Combined fork arm on freight forklift of telescopic boom forklift truck


    Contributors:
    ZOU JIAFU (author) / ZOU YONGPING (author)

    Publication date :

    2015-10-28


    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



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