A trailer jack device is provided. The device may include: a gearbox for actuating a trailer; and a mount connected to the gearbox via a tube. The mount may be configured to couple the trailer to the gearbox. Further, the gearbox may have a gear reduction ratio for a power drill to perform at peak efficiency while minimizing motor burnout.

A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.

A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.

A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.

A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.

The supporting structure for a mobile concrete pump for connecting a distribution boom includes two support leg boxes that cross each other diagonally, and a boom pedestal attached thereto having a turret that has an opening that is surrounded at its one end at least partially by a pivot mount receptacle for a pivot bearing for pivoting the distribution boom of the concrete pump with respect to the turret. Part of the wall of the turret is formed by a side wall of the supporting leg boxes that cross each other, wherein the side walls of the supporting leg boxes are, in a first region in which same form part of the wall of the turret, free of joining points such that loads introduced via the turret directly into the side walls are distributed beyond the first region without shear load of a joining point in the side walls.

Vehicles may be composed of a relatively few number of “modules” that are assembled together during a final assembly process. An example vehicle may include a body module, a first drive module coupled to a first end of the body module, and a second drive module coupled to a second end of the body module. One or both of the drive modules may include a pair of wheels, a battery, an electric drive motor, and/or a heating ventilation and air conditioning (HVAC) system. One or both of the drive modules may also include a crash structure to absorb impacts. If a component of a drive module fails or is damaged, the drive module can be quickly and easily replaced with a new drive module, minimizing vehicle down time.

Vehicles may be composed of a relatively few number of “modules” that are assembled together during a final assembly process. An example vehicle may include a body module, a first drive module coupled to a first end of the body module, and a second drive module coupled to a second end of the body module. One or both of the drive modules may include a pair of wheels, a battery, an electric drive motor, and/or a heating ventilation and air conditioning (HVAC) system. One or both of the drive modules may also include a crash structure to absorb impacts. If a component of a drive module fails or is damaged, the drive module can be quickly and easily replaced with a new drive module, minimizing vehicle down time.

An axle stand for use with a trailer including a rotatable wheel hub mounted to a distal end of an axle, the wheel hub having a plurality of wheel studs, the axle stand including: a lower component having feet configured to contact soil; an upper component assembled in a sliding fit with the lower component to provide an adjustable height, the upper component having an upper end and a lower end, wherein the upper end defines a saddle including a cutout sized and shaped to receive a central portion of the wheel hub, the saddle further including mounting holes which correspond to a bolt pattern of the wheel studs; and a locking plate configured to be locked to the upper component to prevent access to at least some of the wheel studs.

An axle stand for use with a trailer including a rotatable wheel hub mounted to a distal end of an axle, the wheel hub having a plurality of wheel studs, the axle stand including: a lower component having feet configured to contact soil; an upper component assembled in a sliding fit with the lower component to provide an adjustable height, the upper component having an upper end and a lower end, wherein the upper end defines a saddle including a cutout sized and shaped to receive a central portion of the wheel hub, the saddle further including mounting holes which correspond to a bolt pattern of the wheel studs; and a locking plate configured to be locked to the upper component to prevent access to at least some of the wheel studs.