An operating device includes a crane controller for controlling actuators of the loading crane and for generating sensor data based on the sensor signals, and an input device spatially separated from the crane controller for inputting control commands for the crane controller. The crane controller has a first telecommunications device for exchanging data signals with the input device, and the data signals output by the crane controller include sensor data. The input device has a second telecommunications device for exchanging data signals including control commands with the first telecommunications device. The input device has a transmitter device for outputting data signals. A signaling device is spatially separated from the input device, and has a receiver device for receiving data signals output by the transmitter device and a display device for displaying audio data and/or image data. The signaling device signals the audio data and/or image data to a user.

Provided is a crane that is capable of effectively suppressing oscillation related to the pendulum resonance frequency generated in a suspended load on the basis of the suspended length of a wire rope. The crane 1 calculates a suspended load oscillation resonance frequency ωx(n) determined on the basis of the suspended length L(n) of a wire rope (14.Math.16), and generates a control signal C(n) for an actuator according to an arbitrarily defined operation signal, and, on the basis of the resonance frequency ωx(n), generates from the control signal C(n) a filtering control signal Cd(n) for the actuator in which a frequency component in an arbitrarily defined frequency range is attenuated by an arbitrarily defined percentage. The frequency range of the attenuated frequency component and/or the percentage of attenuation is altered on the basis of the suspended length L(n) of the wire rope (14.Math.16).

A mobile crane comprising a telescopic boom which has a main casing with linearly moveable inner casings. Guying equipment can be added to the telescopic boom, where at least one securing region arranged on the main casing is provided for the fixing of the guying equipment. In order for the adding and removal of the guying equipment to and from from mobile crane to be carried out more easily and safely, at least one coupling region is arranged on one of the inner casings for adding and/or removing the guying equipment and which can be connected to the same. In this way, the guying equipment can be received directly from a transport unit by the at least partially extended telescopic boom, the guying equipment can be moved onto the main casing by retracting the telescopic boom and coupled to the same.

A mobile pipelayer machine includes a machine chassis having a forward end, a rear end, a first side, and a second side, and a boom extending from the first side of the machine chassis. The mobile pipelayer machine also includes a movable counterweight system extending from the second side of the machine chassis, the movable counterweight system being selectively movable to change a center of gravity of the machine in at least one of a forward or a rearward direction.

Described is a telehandler (1) comprising an operating arm (10) to which is coupled a winch (2) equipped with a motor-driven drum (21), on which is wound a cable (22) to which is fixed a hook (23), also comprising first means (51) for detecting the quantity of cable (22) unwound.

An object of the present disclosure is to provide a utility pole rotation apparatus and a position control method that can reduce not only the number of workers for adjusting an orientation of a scaffold bolt (an orientation of a side surface of the utility pole) but also the number of workers for stopping swinging of the utility pole, which cannot be simultaneously reduced in the related art.

The utility pole rotation apparatus according to the present disclosure includes a gripping portion that grips a utility pole, and a roller having a cylindrical shape that contacts the utility pole at an inner side of the gripping portion and rotates the utility pole with a longitudinal direction serving as an axis due to rotation of the roller.

A mobile crane is configured so that a boom is raised by a derrick cylinder in response to a raise signal output from a derrick lever and the derrick cylinder is stopped in response to the derrick angle of the boom reaching the maximum angle γ corresponding to the hoisted-down length of a rope.

The telescopic lift arm (1) for self-propelled operating machines (10), such a lifters, telehandlers and the like, comprises three tubular elements (21, 22, 23, 24, 25, 26), having a decreasing section and telescopically connected to one another to define a support structure which is able to move between a retracted configuration in which the tubular elements (21, 22, 23, 24, 25, 26) are inserted in one another, and an elongate configuration, in which two tubular elements are extracted.

The arm (1) comprises a hydraulic actuator (4), associated to the support structure (21, 22, 23, 24, 25, 26) and provided with three hydraulic elements (41, 42, 43) telescopically connected to one another, each of which is connected to a respective tubular element of the support structure.

A structure installation system which maintains one or more walls in a desired position and orientation during installation of the one or more walls. The structure installation system generally includes a vehicle which is adapted to traverse a ground surface. The vehicle includes an arm having an arm coupler to which a support is connected. One or more walls adapted to be installed in the ground surface may be removably connected to the support, such as by securing the walls to adjustable hangers that are removably connected to the support. By adjusting the positioning of the hangers, the orientation and position of the walls may be adjusted. Once put in position, the vehicle and support will retain the walls in the desired position and orientation while concrete is poured and allowed to cure to form a unitary structure such as a bollard wall.

A boom system includes a base assembly and a boom assembly. The boom assembly includes a boom including a plurality of boom sections. The plurality of boom sections includes a lower boom section coupled to and extending away from the base assembly and defining a proximal end of the boom and an upper boom section defining a distal end of the boom. The boom assembly further includes an attachment coupler assembly coupled to a boom section other than the upper boom section and configured to receive a first implement. The boom assembly further includes an implement connector positioned at the distal end of the boom, the implement connector configured to receive a second implement.