Described is an operator vehicle, comprising: a platform (2), equipped with a seat (3); a tower (T), coupled to the seat (3) in a rotatable fashion about a main rotation axis; motor means, arranged to rotate the tower (T) about the main axis; a detector, arranged to detect the movement of the angular position of the tower towards a reference angular position relative to the main axis, and to emit a corresponding proximity signal.

A lift device includes a lift apparatus configured to raise and lower a robotic attachment and a base assembly configured to support the lift apparatus. The base assembly includes a prime mover configured to rotate one or more wheels coupled to the base assembly. The lift device also includes a controller in communication with at least one of the lift apparatus and the robotic attachment. The robotic attachment includes robotic implement moveable independent of the lift apparatus, a stabilizer bar coupled to the robotic implement and configured to selectively provide a stabilizing force to the robotic attachment, and a locking mechanism configured to selectively hold the stabilizer in a locked position.

A safety control unit for controlling a lifting arm of a lifting arm machine is provided. The safety control unit comprises a safety control unit housing, a sensor input, a first processor and a second processor. The sensor input is configured to receive a first signal indicative of a toppling moment of the lifting arm about the lifting arm machine and a second signal indicative of the toppling moment of the lifting arm about the lifting arm machine, wherein the first and second signals are independent of each other. The first processor is provided within the safety control unit housing and configured: to receive the first signal, to determine a first toppling moment based on the first signal, and to output the first toppling moment. The second processor is independent of the first processor and provided within the safety control unit housing. The second processor is configured: to receive the second signal, to determine a second toppling moment based on the second signal, to receive the first toppling moment from the first processor, and to cross-check that first toppling moment and the second toppling moment are within a predetermined range of each other. Further, the safety control unit is configured: to determine whether the first toppling moment and the second toppling moment exceed a predetermined threshold, and to output a toppling safety command signal if the safety control unit determines the predetermined threshold or the predetermined range is exceeded. A display unit and a lifting arm safety system, each comprising the safety control unit is also provided.

A forklift overturning prevention method includes: acquiring a wheel load on a wheel of a forklift; obtaining a center of gravity of the forklift based on wheel loads on all wheels of the forklift; and sending a protection operation instruction when the center of gravity reaches a preset boundary line, so that the forklift stops working and sounds an alarm to prevent the forklift from overturning.

A controller for use with a machine includes a machine body, and a load handling apparatus coupled to the machine body and moveable by an actuator, wherein the controller is configured to receive a signal representative of the orientation of the load handling apparatus with respect to a reference orientation and a signal representative of a moment of tilt of the machine, wherein the controller is further configured to issue a signal for use by an element of the machine including the movement actuator, which in response to the signal issued by the controller, is configured to restrict or substantially prevent a movement of the load handling apparatus when a value of the signal representative of the moment of tilt reaches a threshold value, the threshold value being dependent on the signal representative of the orientation of the load handling apparatus with respect to the reference orientation.

Disclosed are a fork leveling system and a method thereof, and a telescopic boom forklift. The fork leveling system includes an active leveling oil cylinder, a passive leveling oil cylinder and an electric control oil supplement valve, where a rodless cavity of the active leveling oil cylinder is communicated with a rodless cavity of the passive leveling oil cylinder, and a rod cavity of the active leveling oil cylinder is communicated with a rod cavity of the passive leveling oil cylinder; and an oil inlet of the electric control oil supplement valve is connected to an oil pump, and an oil outlet of the electric control oil supplement valve is connected to the rodless cavity of the active leveling oil cylinder and the rod cavity of the active leveling oil cylinder.

Described is a telehandler having a cab (1) equipped with a roof (10) defined by a transparent or semi-transparent protective cover (11) which comprises one or more materials designed to withstand the falling of hazardous material for the safety of an operator onboard the cab (1). The cover includes a plurality of layers made of polymeric material, including one made of polycarbonate (111, 112) or polyurethane (110).

The invention relates to a control method for controlling an actuating device (8) in a handling machine (1) comprising a main movable body (2) and a handling arm (6) intended to receive a load that is to be moved, the actuating device being configured to perform a movement of the handling arm in relation to the main body, the method comprising: measuring a parameter indicative of a tilting force applied to the main body in relation to a tilting axis, and stopping or hindering a movement of the handling arm performed or requested when a stopping condition is met, the stopping condition being dependent on the parameter indicative of the measured tilting force, and, in which, when a reinforced operating mode is selected, the stopping condition is also dependent on a parameter representative of the speed of the movement of the handling arm.

A frame, a boom assembly, and an actuator. The boom assembly includes a first boom section having a proximal end coupled to the frame and a distal end opposite the proximal end and a second boom section pivotably coupled to the distal end of the first boom section. The actuator is reconfigurable between a locked configuration and an unlocked configuration. The actuator permits the boom assembly to move freely when the actuator is in the unlocked configuration. In the locked configuration, the actuator is positioned to couple the second boom section to the frame such that the actuator limits movement of the first boom section relative to the frame.

The invention relates to a machine (1) for handling loads (24), comprising: —a wheeled chassis (2), —a drive system (3) for moving the wheeled chassis (2), —a load handling system (4) carried by the chassis (2), —a control unit (5), a device (6) for controlling the load handling system (4) that can be manually actuated by an operator, the control unit (5) being configured to receive control signals from said control device (6), a member (7) for activating the manually actuatable control device (6). The handling machine (1) comprises a sensor (8) of a parameter representative of a movement of the machine (1), and the control unit (5) is configured to allow the control of the handling system (4) with the control device (6) as a function of at least the parameter representative of a movement of the machine (1).