A lightweight camera crane (20) has an outer arm (56) pivotally attached to a base (24) . A trim weight tray (36) is rigidly attached to a back end of the outer arm. A moving counterweight carriage (34) is supported on carriage rollers (46, 48) on top of the outer arm. An inner arm (58) is supported on arm rollers within the outer arm. A camera platform (50, 52) is pivotally attached to a front end of the inner arm for tilt axis movement. An electric extension motor (102) drives telescoping extension and retraction movement of the inner arm via chains, belts or cables (106, 110) connected to the counterweight carriage and the inner arm.
TELESCOPING ELECTRIC CRANE
ELEKTRISCHER TELESKOPISCHER KRAN
GRUE ÉLECTRIQUE TÉLESCOPIQUE
2018-02-07
Patent
Elektronische Ressource
Englisch
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 |
CRANE TELESCOPING BOOM, SYSTEM AND METHOD FOR ACTUATING CRANE TELESCOPING BOOM
Europäisches Patentamt | 2023
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