A controller for electronically controlling hydraulically operated lifting arms. The controller allows a wide range of quicker movement and slower movement of the lifting arms under proportional control by the operator. An electronic servomechanism is mechanically coupled to a hydraulic valve handle to control the operation of the lifting arms. The servomechanism turns a shaft in response to a proportional controller. The valve handle controls the hydraulic valve stem, allowing the hydraulically operated lifting arms to raise, lower, grip, release, and perform auxiliary hydraulic operations.

Embodiments provide shelves, bracket systems, automated picker robots, totes, and other features that may be used with delivery vehicle configurations that have automated cargo areas. A delivery vehicle may include a picking robot that selectively retrieves packages for delivery without requiring substantial human intervention for locating those packages. The cargo area of the delivery vehicle may further comprise a plurality of customizable shelving units that generate custom-sized shelves for packages. The shelves may include a plurality of individually movable shelf brackets having retaining members that pivot between an extended and retracted position to hold the package in place and to enable the picking robot to retrieve the package from the shelf. Another embodiment provides for a tote having a drive mechanism to hold letters so that a letter may be automatically retrieved from the cargo arear and provided at a delivery location.

A drop deck trailer is provided with a deck that has the ability to raise and lower to conveniently load and unload goods and materials on the deck. A pneumatic system can raise and lower the deck and also serve as a suspension system for the trailer to dampen the relative movement between a frame and the deck. In addition, some embodiments of the trailer have a deck with a movable carriage that can move along the deck to automatically load a vehicle such as a golf cart. The carriage has rollers that secure the front wheels of a vehicle, and the carriage moves along the decks to pull the vehicle onto the deck. Moreover, various embodiments of a trailer frame can selectively connect to different decks to allow each deck to be specialized for particular goods and materials.

A container transfer system is disclosed. The container transfer system can be installed on a vehicle or a rack. The container transfer system includes a conveyance assembly configured to move a container in a substantially horizontal direction along a longitudinal direction of the conveyance assembly. The conveyance assembly can include a frame comprising longitudinal members and transverse members and a plurality of rollers coupled to the frame. The plurality of rollers can include a first set of drivable rollers configured to be actively driven by a motor and a second set of passive rollers. The container transfer system also comprises a plurality of lift assemblies coupled between chassis rails of the vehicle and the frame of the conveyance assembly configured to raise and lower the conveyance assembly in a substantially vertical direction.

A method and an alignment system which auto-levels and/or auto-centers a loading platform to load and unload a wheeled stretcher to and from an emergency transport vehicle are disclosed. A controller of the alignment system receives a command to extend the loading platform from the emergency vehicle and extends the loading platform under power from the emergency transport vehicle. The controller recognizes an approaching wheeled stretcher, and aligns automatically the loading platform with a leading edge of the approaching wheeled stretcher to compensate automatically for any alignment issues between the loading platform and loading wheels of the wheeled stretcher.

A tracked vehicle comprising: a body comprising a lower structure and an upper structure rotatable relative to the lower structure about an axis; an angle sensor for detecting rotation of the upper structure relative to the lower structure; first and second track assemblies mounted, respectively, on opposite lateral sides of the body; a prime mover; an electronic control unit (ECU); and a transmission for controllably transferring power from the prime mover to the track assemblies based on an output of the ECU. The ECU is configured for responding to the angle sensor having detected a relative angular displacement in excess of a threshold angular displacement by: causing a signal to be emitted via an output interface to indicate that a directionality switchover is available to be requested; and, in response to detecting a directionality switchover request, causing the transmission to implement a directionality switchover for the tracked vehicle.

A hitch mounted lift gate system and method of loading and loading a payload from a cargo vehicle using the lift gate system. The frame and platform of the lift gate system is pivotable relative to the hitch and hitch receiver as between a vertical use position and a horizontal dropped position for facilitating opening and closing of rear doors on the vehicle to which the lift gate system is mounted when the rear doors pivot about a vertical axis.

A transport trailer and a method for transporting an oversize load are provided. In one nonlimiting example, the transport trailer includes a trailer. The trailer includes an elongated body that extends in a length direction and that has an upper base surface. A support assembly is configured to support the oversize load and is pivotably coupled to the trailer to move between a first position and a second position. In the first position, the support assembly extends over the upper base surface and beyond the trailer in a width direction that is transverse to the length direction to define a wide load overhang that extends beyond the trailer in the width direction. In the second position, the support assembly is positioned at an incline relative to the first position to one of reduce and eliminate the wide load overhang.

A hydraulic deck comprising a frame consisting of a pair of horizontal members and a pair of vertical members, wherein the frame is configured to be mounted in a bed of a pickup truck; a pair of pivot arm members in telescoping engagement with the pair of horizontal members and a pair of extension members in telescoping engagement with the pair of vertical members; a platform member configured to support at least one vehicle; a pair of pillars rotationally connected to pin members positioned on the pair of extension members, wherein the pair of pillar extend perpendicularly from the platform member; and a mechanically operating lifting system configured to slide and lower the platform from the bed in a stored position to a ground surface in a loading position.

The present invention is a cargo carrier. The preferred embodiment is a cantilever displacement cargo carrier with a beam. The first end of the beam comprises a cantilever displacement housing with a pivot hole. A pivot beam is pivotally attached to the beam at the cantilever displacement housing by a pivot pin inserted into the pivot hole and a pivot bushing. The pivot beam preferably has at least one pin saddle where a horizontal bearing pin with at least one bearing is inserted. The bearing preferably has an outer circumference that extends above the top surface of the pivot beam and contacts the cantilever displacement housing. The second end of the beam has a receiver saddle where the pivot beam can be locked in place at an anchor bushing by a retainer pin.