A telescopic boom extending along a longitudinal axis includes a base section intended to be connected to a frame of a machine for lifting loads, a plurality of movable sections, a hydraulic cylinder connecting the base section to a first movable section of said plurality for extending the first movable section relative to the base section, at least one extension chain between the base section and a second movable section for extending the second movable section relative to the first movable section, at least one further extension chain interposed between the first movable section and a third movable section for extending the third movable section relative to the second movable section, the extension chain and the further extension chain located at opposite sides of the longitudinal axis.
A TELESCOPIC BOON
2015-11-05
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 |
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