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 scissor-lift platform comprises a scissor mechanism (1) and scissor elements (3) that are connected to form scissor element pairs by central bearings (2). At least one scissor element (3) of a scissor element pair has a bearing receiving element (4) that is removably connected to the scissor element (3) in order to receive the central bearing (2).

A lift assembly for a utility vehicle storage area includes a floor supported by a scissor mechanism, an actuator for raising the scissor mechanism and the floor from a neutral position to an elevated position, a plurality of rollers attached to the floor, guide members attached to the scissor mechanism and within which the plurality of rollers move, and a detent protruding into one of the guide members to resist rotation of at least one of the plurality of rollers and create a pivot point about which the floor rotates to a pivoted position. The floor may be rotated to the pivoted position from the neutral position, the elevated position, or any position between the neutral and elevated positions. In addition, the floor may be removed from the assembly by passing the first and second pairs of rollers through the cutouts in the guide members.

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.

An apparatus for lifting vehicles includes a runway, a base, an actuation assembly, a first armature assembly, a second armature assembly, and a third armature assembly. The runway is designed to vertically lift a vehicle from a lowered position to a raised position. The runway is connected to the third armature assembly. In turn, the third armature assembly is connected to the actuation assembly, which is pivotally fixed to the base. The first and second armature assemblies also connect the base with the third armature assembly. The actuation assembly is configured to lift the third armature assembly, which is guided by both the first armature assembly and second armature assembly. In response to the actuation assembly, the third armature assembly then forces the runway from the lowered position to the raised position, thereby lifting the vehicle.

A support device, preferably for commercial vehicles such as semi-trailers, includes an inner support tube and an outer support tube moveable relative to one another along a longitudinal axis in a retraction and extension direction; a spindle rotated via a gear section and is arranged such that the spindle is stationary relative to the outer support tube; and a spindle nut which is mounted on the spindle, wherein the spindle nut is fixed on a mounting region of the inner support tube, and the mounting region is configured as a support edge facing the longitudinal axis.

A robotic under surface loader includes a mobility platform, a parallel manipulator, and a cradle. The mobility platform enables the robotic under surface loader to be moved into place beneath a downwardly facing surface to which a payload is to be attached. The parallel manipulator, which is carried by the mobility platform, carries the cradle, which may in turn carry a payload. The parallel manipulator may position the cradle in six degrees-of-freedom and, thus, precisely position a payload carried by the cradle in a location and an orientation that will facilitate its interaction with (e.g., attachment to, etc.) the downwardly facing surface. Methods for attaching objects, including large, heaving objects, to downwardly facing surfaces are also disclosed.

A platform assembly for a vehicle includes a platform, a first frame section mounted to the platform and a second frame section rotatably mounted to the platform. The first frame section is pivotably mountable to an elevated structure in the vehicle such as a roll bar. When installed in a vehicle, the platform assembly is easily stowed for storage by rotating the first frame section to a generally horizontal position, which causes the platform to extend downward into the vehicle's cargo area. The platform assembly is easily movable to an extended position for use by rotating the first frame section and the platform together until the platform is elevated and horizontal. The second frame section can then be rotated until it contacts the vehicle to further support the platform.

An apparatus for conveying delivered items into a building envelope translocates deliveries from a designated receiving area exterior to a building envelope via secure passage onto a deposit area locatable interior to the building envelope. Deposit of an item upon the receiving area signals presence of the delivery. The apparatus is operable automatically via command instantiated in circuit and/or over network in response to the signal.

A scissor lift includes a base, a platform, a plurality of pivotally connected scissor links, a support column, and a locking actuator. The platform has a fixed horizontal orientation and being movable between a first elevation and a second elevation. The scissor links are arranged in a crisscross pattern and operatively connecting the base and the platform. The lift actuator is pivotally attached to at least one of the scissor links to selectively raise and lower the platform along a lift path. The support column extends alongside the lift path and positioned adjacent to the platform. The locking actuator is fixed to an underside of the platform and includes a piston member extendable toward the support column to operatively connect the platform with the support column when the platform is raised at the second elevation so that the platform is supported by the support column in the fixed horizontal orientation.