A lift device comprises a base, a linear actuator, and a rechargeable battery system. The linear actuator is configured to selectively move a work platform between a raised position and a lowered position. The linear actuator includes an electric motor. The rechargeable battery system includes a battery, a heating system, and a battery charger. The battery is configured to power the electric motor of the linear actuator. The battery charger is configured to simultaneously charge the battery and provide power the heating system to heat the battery.

The lifting mechanism includes a battery, an electric machine, a hydraulic pump, an oil tank, a hydraulic cylinder, a work platform and a proportional valve or switch valve. In the energy-regeneration mode, the hydraulic fluid drives the hydraulic pump to operate as a hydraulic motor, thus in turn driving the electric machine to operate as a generator and charge the battery. In the present application, the hydraulic pump operates to increase a pressure in a hydraulic line between the hydraulic pump and the proportional valve or switch valve before the proportional valve or switch valve is switched from a unidirectional communication position to a bidirectional communication position. When the proportional valve or switch valve is switched from the unidirectional communication position to the bidirectional communication position, by increasing the pressure in the hydraulic line, it could be avoided that the volume of hydraulic fluid has low pressure is compressed because the hydraulic fluid has low pressure is communicated with hydraulic fluid has high pressure; therefore a state of sudden drop of the work platform is avoided, and safety performance and operating experience of the lifting mechanism is improved.

A scissor boom system including a scissor boom assembly having a telescopic boom section including a base-boom, a middle-boom, and a top-boom, a scissor links assembly, a chassis, and a power hoist. The chassis supports the power hoist, the power moves the telescopic boom section and the scissor links assembly between raised and lowered conditions when manipulated. The scissor boom assembly provides a stable work platform for workers. The telescopic boom section provides for horizontal-movement of a work platform, and the scissor links assembly is thus able to provide vertical-movement of the work platform, as desired.

Disclosed herein is a scissor lift comprising a passenger basket. The scissor lift also comprises a base that comprises wheels. The scissor lift further comprises a scissor extension mechanism between the passenger basket and the base. The scissor extension mechanism is configured to raise the passenger basket in a first direction relative to the base and lower the passenger basket in a second direction, opposite the first direction, relative to the base. The scissor lift additionally comprises a through-beam sensor system co-movably coupled to the scissor extension mechanism. The through-beam sensor system moves in a third direction, perpendicular to the first direction and the second direction, when the scissor extension mechanism raises the passenger basket and moves in a fourth direction, opposite the third direction, when the scissor extension mechanism lowers the passenger basket.

A levelling group of an aerial work platform includes: a support base for supporting a containing cage of an aerial work platform, a support frame hinged to the support base so as to be able to oscillate with respect to an oscillation axis, at least a pair of ground rest elements hinged independently to the support frame, with respect to respective articulation axes parallel to one another and substantially perpendicular to the oscillation axis, such as to be able to independently vary a height thereof with respect to the support base.

A fire fighting device comprises a fire fighting aggregate (3) for penetrating a wall (5) and injecting fire fighting fluid into a space behind the wall. The fire fighting aggregate (3) comprises: a fluid driven rotating motor, such as a turbine, with a rotor (303) carrying a rotating cutting element (305), and a fluid inlet (109) for receiving fire fighting fluid to drive the rotor (303); a support (1) for attachment to the wall (5) suspending the fire fighting aggregate (3), at least the rotating cutting element (305) being movable relative to the support (1) towards the wall (5); a power means (322, 340) for pressing the rotating cutting element (305) towards the wall (5); and a second conduit for feeding the fire fighting fluid to the power means (322, 340) to provide for said power means (322, 340) to press the rotating cutting element (305) towards the wall (5).

The present invention provides an automated system for spraying a wall of a building. The automated system comprises a boom lift having a linear track disposed thereon, wherein the linear track is disposed horizontally with respect to the height of the building; a robotic mechanism slidably mounted on the linear track of the boom lift, the robotic mechanism further having an end effector adapted for supporting a spray nozzle thereon; a visual monitoring system configured to scan structural characteristics and profiles of the wall; a computing device disposed in communication with the visual monitoring system and the robotic mechanism, wherein the computing device is configured to receive the scanned structural characteristics and profile of the wall from the visual monitoring system; and controller communicably coupled to the computing device, the controller configured to independently control operation of respective ones of the robotic mechanism, and the spray nozzle according to the scanned structural characteristics and profiles of the wall.

Provided is a system and method for an adjustable standing platform for a person. The adjustable standing platform includes a base structured and arranged to be disposed upon a support surface with a movable platform disposed above and generally parallel to the base, the movable platform having at least one removable foot pedal controller providing at least a portion of a standing area, each removable foot pedal controller in wireless communication with at least one associated remote base unit. An actuator couples the movable platform to the base, the actuator structured and arranged to move the movable platform generally towards or away from the base. A flexible outer element substantially enclosing the adjustable standing platform, the flexible outer element structured and arranged to expand and contract as the movable platform moves relative to the base. An associated method of providing and using the adjustable standing platform is also provided.

A lift device includes a base, a platform that is repositionable relative to the base between a fully raised position and a fully lowered position, a scissor assembly coupling the base to the platform, and a booster. The scissor assembly includes a scissor layer including a first scissor arm pivotally coupled to a second scissor arm, a pulley coupled to the scissor layer, a tensile member wrapped around the pulley, and an actuator configured to vary a working length of the tensile member such that the first scissor arm rotates relative to the second scissor arm to move the platform relative to the base. A booster is positioned to engage a portion of the tensile member and apply an upward force on the scissor assembly when the platform is in the fully lowered position.

The device (40) is designed to be movably placed in a dedicated location of a machine using a forklift. It comprises passages for the tines (401) of a fork of a forklift and a locking system (300) for selectively locking the device in the dedicated location. The locking system comprises at least one locking member (301, 302) which is movable between a locking position and an unlocking position in order to be engaged and disengaged, respectively, with a retaining member of the dedicated location of the machine. The locking member (301, 302) is resiliently or gravitationally biased in the direction of the locking position. It comprises at least one actuating member (311) extending into a passage for a tine (401) of the fork of the forklift to be actuated by the latter so as to move the locking member into the unlocking position.