In a dump truck of the type having a frame mounted on ground wheels, a dump box having a floor, two side walls, a front wall at a front end and an open rear end with a tail gate where the dump box is supported on the frame for movement between a lowered position for storing and transporting materials and a raised position where the front end is elevated for dumping the materials out of the open rear of the dump box under gravity, the side walls are tapered so that a spacing at the front end is less than a spacing at the rear end so that the materials as they slide forwardly come away from the side walls to reduce pressure on the side walls and aid the sliding.

A trailer is provided having a trailer base and a trailer bed mounted to the trailer base. The trailer includes at least one actuator coupled to the trailer bed and the trailer base that raises and lowers the trailer bed. When the at least one actuator is extended, the trailer bed is raised to a vertical orientation. When the at least one actuator is retracted, the trailer bed is in the horizontal orientation. The trailer includes a lifting head protruding outwardly from the trailer bed. The position of the lifting head is adjustable along a longitudinal axis of the trailer bed.

A trailer is provided having a trailer base and a trailer bed mounted to the trailer base. The trailer includes at least one actuator coupled to the trailer bed and the trailer base that raises and lowers the trailer bed. When the at least one actuator is extended, the trailer bed is raised to a vertical orientation. When the at least one actuator is retracted, the trailer bed is in the horizontal orientation. The trailer includes a lifting head protruding outwardly from the trailer bed. The position of the lifting head is adjustable along a longitudinal axis of the trailer bed.

The present invention relates to a work machine, in particular in the form of a dump truck or truck, comprising a traction drive unit and/or main work unit which can be driven by a drive apparatus comprising at least one electric motor. The invention further relates to a method for operating such a work machine, in accordance with the invention, the drive apparatus comprises at least one hydraulic motor supporting the electric motor, the hydraulic motor being switched in for starting the drive apparatus and being decoupled on an exceeding of a predefined speed.

The present invention relates to a work machine, in particular in the form of a dump truck or truck, comprising a traction drive unit and/or main work unit which can be driven by a drive apparatus comprising at least one electric motor. The invention further relates to a method for operating such a work machine, in accordance with the invention, the drive apparatus comprises at least one hydraulic motor supporting the electric motor, the hydraulic motor being switched in for starting the drive apparatus and being decoupled on an exceeding of a predefined speed.

A dump body for a truck has rear left and right pillars, a tailgate pivotally connected to the pillars, left and right upper rails connected to the rear left and right pillars at their rear ends, a front wall connected to the front ends of the upper rails, a left side wall connected to the front wall, the left upper rail and the rear left pillar, a right side wall connected to the front wall, the right upper rail and the rear right pillar, a floor connected to the front wall, the rear pillars, and the lower ends of the side walls, and front and rear support assemblies connected to an underside of front and rear portions of the floor. A majority of an underside portion of the floor located longitudinally between the support assemblies is free of structural support members. A truck having the dump body is also disclosed.

A dump body for a truck has rear left and right pillars, a tailgate pivotally connected to the pillars, left and right upper rails connected to the rear left and right pillars at their rear ends, a front wall connected to the front ends of the upper rails, a left side wall connected to the front wall, the left upper rail and the rear left pillar, a right side wall connected to the front wall, the right upper rail and the rear right pillar, a floor connected to the front wall, the rear pillars, and the lower ends of the side walls, and front and rear support assemblies connected to an underside of front and rear portions of the floor. A majority of an underside portion of the floor located longitudinally between the support assemblies is free of structural support members. A truck having the dump body is also disclosed.

A simple and lightweight solution to the storage and delivery of dry flowable materials that is cost-effective, can be standardized to facilitate transportation and isolates the materials from exposure to air, insects and other contaminants. An apparatus includes a vessel and a delivery assembly, having a rotary feeder that upon gravity discharge of the dry flowable material moves such material to a desired location.

The present invention relates to a system for transporting and discharging material from vehicles and trailers having a material hopper body. The material hopper body has generally inclined sidewalls and a substantially horizontal bottom area defined by an internal conveyor extending the length of the hopper body. A tailgate door closes the end of the hopper body to contain the load in the hopper. The tailgate door is moveable from the closed position to an open position to permit discharge of the material out the rear of the hopper. Lift and stabilizing means proximate the rear of the material hopper body elevate the hopper body. An external throw conveyor is adapted to pivot between a stored position at the side of the hopper body to an operational position behind and below the hopper body at the discharge end to directionally discharge material from the hopper body.

A trailer has a three-section flat bed in which the front and rear sections fold onto the middle section. The trailer has an airbag suspension system and one wheel on each side. When the airbags are deflated, the entire flat bed forms a ramp for loading and unloading. When the airbags are deflated and the flat bed is folded, the trailer can be stored vertically while resting on its wheels.