A crane includes a carrier unit having a chassis, tires connected to the chassis, a carrier deck and outriggers. A superstructure is mounted on the carrier unit, the superstructure includes a telescoping boom. A slope sensor is operably connected to the carrier unit and configured to detect a pitch and/or a roll of the carrier unit during a lift operation. The crane further includes a system for monitoring a load lifted by the telescoping boom. The system is configured to determine the current load lifted by the telescoping boom, receive pitch and/or roll information of the carrier unit from the slope sensor, adjust coordinates of the crane in a coordinate system based on the pitch and/or roll information, determine a transformed operating radius using the adjusted coordinates; and compare the load lifted to a rated capacity at the transformed operating radius.

Provided is a weight capable of being easily attached to and detached from a load suspended-load rope. The weight is disposed to detect overwinding of a load suspended-load rope suspended from a derricking member of a construction machine. The weight includes a weight body, which has a cylindrical shape enclosing the load suspended-load rope, configured to be suspended from the derricking member through a string-like part. The weight body is formed with a rope insertion space that allows the load suspended-load rope to pass through the rope insertion space in the radius direction of the suspended-load rope. The rope insertion space includes an oblique slit part, which has a shape oblique to the center axis.

Provided is a weight capable of being easily attached to and detached from a load suspended-load rope. The weight is disposed to detect overwinding of a load suspended-load rope suspended from a derricking member of a construction machine. The weight includes a weight body, which has a cylindrical shape enclosing the load suspended-load rope, configured to be suspended from the derricking member through a string-like part. The weight body is formed with a rope insertion space that allows the load suspended-load rope to pass through the rope insertion space in the radius direction of the suspended-load rope. The rope insertion space includes an oblique slit part, which has a shape oblique to the center axis.

An adaptation method is provided for adapting a load curve of a crane to a configuration of the crane, wherein the configuration of the crane is associated with a plurality of crane parameters among which a selection of at least one preferential parameter may be operated. The adaptation method includes implementing a determination of a preferential load curve from among a plurality of load curves calculated as a function of the selected preferential parameter.

In the disclosed solution, a boom assembly (14) of a work machine (1) is controlled by tip control. In tip control, a control command is given to a tip of a boom assembly (14), converted into control commands for individual actuators of the boom assembly (14). In the disclosed solution, a variable related to a load and its position at the tip of the boom assembly (14) is defined, and the variable in question related to the load and its position at the tip of the boom assembly (14) is taken into account in the control command for the actuator.

A fire apparatus includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a ladder assembly coupled to the chassis, and a stability system. The stability system includes at least one of (i) a front downrigger coupled to the chassis, (ii) a rear downrigger coupled the chassis, or an outrigger coupled to the chassis. The stability system is controllable to facilitate leaning the fire apparatus at least two degrees relative to a ground surface while maintaining full operational capability of the ladder assembly.

A securing method for securing a crane on the occurrence of an exceptional event, the crane including a control-command system connected to actuators of the crane and integrated within a processing unit of the crane, the processing unit connected to movement, load and safety sensors placed on elements of the crane and configured to deliver information from events representative of exceptional events, wherein the securing method includes establishing a list of exceptional events detectable by the movement, load and safety sensors, associating levels of severity to each exceptional event, evaluating the level of severity of a detected exceptional event based on corresponding event information, switching from a nominal operating mode to a secure operating mode by applying a safety instruction associated with a severity level for the detected exceptional event, and emitting an alert message informing of the occurrence of the exception event.

A system for determining a lifting capacity of a pipelayer is provided. The system includes a load sensor configured to generate a signal indicative of a load suspended from a lifting hook, an angle sensor configured to generate a signal indicative of an angular position of a chassis relative to ground surface, a boom position sensor configured to generate a signal indicative of a position of a boom relative to an undercarriage, and a counterweight position sensor configured to generate a signal indicative of a position of a counterweight relative to the undercarriage. The system further includes a controller configured to receive the signal from each of the load sensor, the angle sensor, the boom position sensor, and the counterweight position sensor. The controller is also configured to determine the lifting capacity of the pipelayer based, at least in part, on the received signal.

A hydraulic crane comprising: —a rotatable column (7); —a crane boom system (10) comprising two or more liftable and lowerable crane booms (11, 13); and —an electronic control device (25), which is configured to prevent an execution of crane boom movements that would make the lifting moment of the crane exceed the maximum allowed lifting moment of the crane, and to continuously establish position information as to the prevailing position of the load suspension point (P) of the crane boom system. When the lifting moment of the crane has reached a limit value at a given level below the maximum allowed lifting moment, the electronic control device is configured to prevent the execution of any combination of crane boom movements that would increase the horizontal distance between the load suspension point and said vertical axis of rotation and at the same time allow the execution of any combination of crane boom movements that keeps said horizontal distance unchanged or reduces said horizontal distance.

Provided is an apparatus capable of preventing an auxiliary cylinder attached to a derricking member of a working machine from undesirable rotational movement. The apparatus includes an auxiliary cylinder capable of making expansion and contraction motions, an auxiliary-cylinder angle detector, a fixing device, and an expansion controller. The fixing device fixes the auxiliary cylinder to the derricking member when the expansion length of the auxiliary cylinder is in the fixing allowing range, and releases the fixing of the auxiliary cylinder at other times. The expansion controller judges the posture of the auxiliary cylinder based on the auxiliary-cylinder angle detected by the auxiliary-cylinder angle detector, allows the expansion and contraction motions when the auxiliary cylinder is in the vertical posture, and prohibits the auxiliary expansion and contraction motions when the auxiliary cylinder is in a posture other than the vertical posture and the auxiliary cylinder is fixed to the derricking member.