Described is a telescopic lifting arm (1) for self-propelled operating machines (10) comprising three tubular elements (21, 22, 23, 24, 25, 26), with a decreasing cross-section and telescopically connected to each other to define a supporting structure, designed to move between a retracted configuration wherein said tubular elements (21, 22, 23, 24, 25, 26) are inserted one in the other and an elongated configuration wherein two tubular elements are partly extracted. The arm (1) comprises actuator means (5) associated with the tubular elements (21, 22, 23, 24, 25, 26) and configured for actuating two tubular elements (21, 22, 23, 24 25, 26) for pulling them out independently from one other and with different speeds.
TELESCOPIC ARM FOR SELF-PROPELLED OPERATING MACHINES
TELESKOPAUSLEGER FÜR SELBSTFAHRENDE ARBEITSMASCHINEN
BRAS TÉLESCOPIQUE POUR MACHINES D'EXPLOITATION AUTOMOTRICES
2024-10-09
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES / 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 / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |