A lift device includes a scissor assembly coupling a base to a platform. The scissor assembly includes a first scissor layer including a first inner arm configured to rotate relative to a first outer arm about a middle axis. The first scissor layer has an end axis center point defined based on the positions of the end axes about which the first inner arm and the first outer arm rotate. The first middle axis is offset from the first end axis center point. The scissor assembly further includes a second scissor layer coupled to the first scissor layer and extending between the first scissor layer and the platform. The second scissor layer includes a second inner arm pivotally coupled to a second outer arm.

A vehicle immobilizer system comprised of at least one deployable, remotely actuated lift system. The lift system is transported by a movable frame which can be remotely operated. The movable frame suspends the lift system during transport. However, during the lifting operation, the lift system bears the weight of the vehicle, while the movable frame does not. As a result, the movable frame can be of lightweight construction while the lift system can be robust. The lift system supports a universal docking plate which is designed to contact the suspect vehicle and suspend it without damaging it.

A scissor lift includes a base, a platform, a lift assembly, and a linear actuator coupled to the lift assembly. The lift assembly includes a first support member pivotally coupled to a second support member and a third support member pivotally coupled to a fourth support member. The linear actuator includes a housing, a screw coupled to the housing, an extending member slidably coupled to the housing, and an electric motor coupled to the housing and configured to drive the screw to move the extending member relative to the housing. The housing includes a first mount coupled to the first support member and configured to rotate relative to the first support member about a first lateral axis. The extending member includes a second mount coupled to the third support member and configured to rotate relative to the third support member about a second lateral axis.

An electric linear actuator for a lift assembly of a scissor lift includes a housing having a first end defining an aperture and a second end opposite the first end, an extending member received within the aperture and slidably coupled to the housing, a screw coupled to the housing, and an electric motor coupled to the housing and configured to drive rotation of the screw to control movement of the extending member along an axis of extension. The housing includes a mount configured to pivotally couple the housing to the lift assembly of the scissor lift. The mount is offset from the second end of the housing along the axis of extension such that the mount is positioned between the first end and the second end of the housing.

The present disclosure relates to the technical field of aerial work machines, in particular to a scissor aerial work platform and a scissor lifting assembly thereof. The scissor lifting assembly includes a scissor frame, a lifting mechanism and a weighing mechanism. A rotary connecting rod transversely penetrates through the scissor frame, and can rotate around its central axis; the lifting mechanism includes a drive base and a push rod extending out of the drive base; a lower end of the drive base is rotationally connected with the scissor frame, and a rotary sleeve is fixed to an extending-out top end of the push rod and fixed to a periphery of the rotary connecting rod in a sleeving manner; and the weighing mechanism is arranged on the rotary sleeve and the rotary connecting rod, and can measure a bearing capacity of the rotary connecting rod.

A platform assembly includes a work platform including a platform floor and a safety rail extending from the platform floor to a rail height, and a primary sensor unit secured to the work platform and positioned adjacent one of the platform floor and the safety rail. The primary sensor unit is configured to monitor an area from the platform floor or from the safety rail to a space above the rail height and forward and aft of the work platform. The platform assembly enhances protection for an operator from sustained involuntary operation resulting in an impact with an obstruction or structure.

A pallet jack includes a base and a pair of tines extending from the base. The pair of tines including a first tine and a second tine. A load wheel supports an outer end of each of the pair of tines. Each load wheel is configured to move toward and away from the respective tine to raise the tine off a floor on which the load wheel is supported. The first tine including a support surface configured to selectively be a lowermost surface of the tine to facilitate lateral displacement of the first tine.

A transfer device includes an extendable transfer platform. The transfer platform includes a fixed plate, a moveable plate, and at least one platform actuator configured to selectively move the moveable plate relative to the fixed plate between a retracted position and an extended position in which a leading edge of the moveable plate is located distally from a leading edge of the fixed plate. The transfer platform also includes a transfer belt having a first end secured to a first driven roller, and a second end secured to a second driven roller. The transfer device also includes a platform support structure secured to the transfer platform for supporting the transfer platform above a floor surface. The platform support structure includes at least one support actuator configured to selectively move the transfer platform relative to the floor surface between a lowered position and a raised position.

An apparatus for lifting a vehicle top is disclosed. The apparatus may include a base frame including two or more legs and one or more support structures couplable to the one or more legs at a selected angle. The apparatus may include a body frame including a main support and a lifting arm bracket couplable to the main support. The apparatus may include a lifting arm including a lifting platform couplable to a lifting support and one or more stabilizing linkages couplable to the lifting arm bracket, the lifting arm, and the lifting support. The lifting platform may engage an underside of a vehicle top and maintain an orientation substantially parallel to a ground surface as the lifting arm rotates about an axis through the lifting arm bracket.

A lift assembly including a platform movable to a raised position, a lowered position, and an intermediate position between the raised and lowered positions. A scissor arm system defines a cavity beneath the platform. The scissor arm system includes a pair of scissor arms pivotably connected to each other. The scissor arm system has opposed first and second ends with the first ends of the scissor arm system being coupled to the platform. A stanchion guides the platform between the raised and lowered positions. The stanchion extends from a first stanchion end to a second stanchion end above the first stanchion end. A drive mechanism is mounted to the platform to move with the platform. A flexible member is coupled to the stanchion and the drive mechanism. The drive mechanism winds and unwinds the flexible member to move the platform between the raised and lowered positions.