Mobile crane
AssigneeTerex Australia Pty Ltd
InventorClayton McPherson
Life of this patent
Estimating the term…
Abstract
An embodiment relates to a mobile crane having an articulated body and an elongate boom attached to the body, the boom being for carrying a load when the crane is stationary and while the crane is mobile. The boom is articulated to provide a movement for lifting and lowering an end of the boom, and the boom is further articulated to provide a movement of the boom laterally. A further embodiment relates to controlling swing of a load carried at the end of a boom of a mobile crane by varying lateral orientation of the boom.
Claims20
A mobile crane comprising an articulated body, the articulated body comprising a rear chassis and a front chassis attached for articulated movement to the rear chassis, the front chassis comprising an operator cabin, the mobile crane further comprising an elongate boom attached to the body, the boom being for carrying a load when the crane is stationary and while the crane is mobile, the boom being articulatable to provide a movement for lifting and lowering an end of the boom, wherein the boom is further articulatable to provide a movement of the boom laterally;
- the mobile crane further comprising an actuator for providing the lifting and lowering movement and/or the lateral movement, the actuator comprising two rams, wherein the rams are movable to provide the lifting and lowering movement and the lateral movement, and wherein the two rams are connected to the boom and the front chassis so that the two rams are arranged between the boom and the front chassis.
A method of controlling a mobile crane, the mobile crane having an articulated body comprising a rear chassis and a front chassis attached for articulated movement to the rear chassis, the front chassis comprising an operator cabin, the mobile crane further comprising an elongate boom attached to the body, the boom being for carrying a load when the crane is stationary and while the crane is mobile, the mobile crane further comprising an actuator comprising two rams c ted to the boom and the front chassis so that the two rams are arranged between the boom and the front chassis, wherein the method comprises moving the rams for lifting and lowering an end of the boom and for moving the boom laterally.
Dependencies are inferred from the claim text.