A photovoltaic (PV) panel distribution device may include a housing assembly, an elevating system, or a movement mechanism. The housing assembly may store a PV panel in a predetermined orientation within a volume defined by the housing assembly. The elevating system may engage the PV panel to move the PV panel in a direction within the volume so as to position the PV panel in an initial removal position relative to the volume. The movement mechanism may apply a force on the PV panel in the initial removal position to move the PV panel to a final removal position to permit a user to retrieve the PV panel from the final removal position.

A highway towable dock-lift trailer for use in loading and/or unloading trucks, rail cars, containers, etc., for example, in any location and across all industries and applications, and can include a tow bar that allows the trailer be towed to a desirable position or location. When the tow bar is removed from the trailer or repositioned relative to the frame, either a truck can back into position or the trailer lift can be positioned against the truck, etc., and the trailer lift is then ready to load and/or offload the truck. As an operator elevates the loading platform of the trailer, via hydraulic lifting means, for example, the lift can move up to truck height and hydraulically operated lifting arms can operate opposed automatic folding ramps, which simultaneously can open for load distribution and close for safety. The trailer can include a bridge that extends from the platform to a towing vehicle and/or a steerable motive force mechanism to allow maneuvering of the trailer when not coupled to a towing vehicle.

A universal aircraft mule having a rollable and steerable frame and an interchangeable, load-carrying cradle configured for removably supporting and carrying an auxiliary. The frame tiltably and liftably supports the cradle with a lift assembly. The lift assembly raises and lowers the cradle in relation to the frame and tilts the cradle in relation to the frame. The cradle also allows an auxiliary to be skewed within the cradle to facilitate loading and unloading of the auxiliary.

Improved trailers are disclosed having a lowering system comprising lift arms and swing arms that are operable via a plurality of cables and which allow the improved trailers to be oriented in a raised or lowered position.

A system includes a trailer frame, a lifting mechanism coupled to the trailer frame, wherein the lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe, a braking mechanism configured to apply pressure to the pipe while the pipe is being deployed by the system, and a hydraulic power unit configured to hydraulically power the system.

A vehicle for transporting cargo includes a front end unit having a front wheel, a rear end unit having a rear wheel, and a carrying unit on which the cargo is loaded and which is interposed between the front end unit and the rear end unit so that the front end unit and the rear end unit are coupled to each other via the carrying unit. The carrying unit is configured to be separated from the front end unit and the rear end unit in a direction intersecting a direction in which the vehicle travels and to be coupled to the front end unit and the rear end unit while the front end unit and the rear end unit are stationary.

A trailer has a frame for lifting, transporting and lowering loads. The trailer is towed by a suitable towing device and includes a lifting device for lifting and lowering the load. Means compatible with the type and weight of the load are coupled with the lifting device. The means are forks in the case of stationary loads such as boxes, or a plane surface in the case of a movable loads. The trailer moves in a stable manner because the lifting device is stably secured on a part of the front side of the trailer and wheels are arranged on either side of the trailer. The trailer has a crossbeam on the rear side, which supports part of the weight of the load once it has been lifted and prepared for travel, and one or more support beams across the width inside the trailer.

A transportation device includes a motor, a transmission assembly, a position limiting assembly, two linkage assemblies, and two wheels. The transmission assembly is linked to the motor. The position limiting assembly includes two position limiting board portions disposed in parallel and adjacent to each other. The two linkage assemblies partially extend into a space between the two position limiting board portions and are pivoted to the two position limiting board portions, respectively. The two linkage assemblies are limited by the two position limiting board portions in a first axis. The two wheels are disposed in tandem along a second axis, respectively linked to the transmission assembly, and pivoted to the two linkage assemblies. The two wheels are driven by the motor respectively through the transmission assembly and are limited by the two linkage assemblies in the first axis. A transportation system including the transportation device is also provided.

The present invention discloses a multifunctional vehicle lifting, steering, moving and obstacle crossing device. The apparatus is composed of a rotating mechanism, a lifting mechanism, a running mechanism and a control mechanism, is mounted at a bottom of an automobile, can be conveniently folded at the bottom of the automobile when not used at ordinary times, and has characteristics of portability, flexibility, no space occupation and easy operation. The apparatus can realize functions of a vehicle, such as lifting, rotating, moving and the like, in a wired or wireless control manner, and effectively overcome defects that the vehicle cannot realize four-wheel off-ground, entire side movement and in-situ rotation or pass through a narrow road or stride across a wide ditch or cross a high and narrow obstacle, thereby completing relatively difficult tasks of the vehicle, such as parking, moving, turning-around and turning in a narrow space, crossing ditches etc.

A U-shaped support frame has a base beam and parallel side beams extending rearward from the base beam and defining an open implement area, which can be made adjustable. A hitch is attached to the front end of the support frame and frame wheels support the side beams, and rotate about a horizontal frame wheel axis that is fixed in an orientation perpendicular to the operating travel direction. Implements are configured to perform an implement operation and to rest on the ground surface when in an idle position. The support frame is moved rearward to a loading position where each implement is movable to an operating position supported by the support frame. Each implement provides a beam lock connection between the side beams that resists twisting movement of the side beams to maintain the frame wheels and the side beams in a substantially fixed relationship with respect to each other.