A carrying mobile robot includes a frame, a suspension system disposed at the bottom of the frame, and a lifting mechanism disposed on the frame. The suspension system includes two suspension mechanisms disposed on the left and right sides, each of which includes a supporting beam, a driving wheel, a connecting member and a first driven wheel. The first driven wheel and the driving wheel respectively support the front and rear ends of the supporting beam, and the connecting member is connected to the supporting beam and located between the driving wheel and the first driven wheels. The lifting mechanism includes a plurality of lifting members, a first driving system for driving the lifting member and a transmission system for transmitting the driving force of the first drive system to the lifting members.

This invention relates to a truck mounted forklift (TMFL), more specifically an electrically powered TMFL. The TMFL comprises a U-shaped chassis having a pair of side bars bridged by a rear cross bar, a pair of front wheels, and a rear wheel. The TMFL further comprises a lifting assembly, a driver's station, and a battery pack mounted on the chassis. Each of the front wheels is provided with a dedicated electric wheel motor assembly. The electric wheel motor assemblies each comprise an interior permanent magnet (IPM) motor having a drive shaft, and a planetary gear box coupled to the IPM motor. The planetary gear box is mounted axially in-line with and is driven by the drive shaft. The IPM motor is mounted substantially internal the side bar and the planetary gear box is mounted substantially internal the bounds of the wheel rim. In this way, a very compact configuration of drive assembly for the front wheels is provided.

A forklift includes a fuel cell system. The fuel cell system includes a battery stack and a capacitor and is electrically connected to a vehicle system. The vehicle system includes a control valve that switches supply of hydraulic oil to a power steering cylinder and a cargo-handling cylinder, a cargo-handling pump that supplies hydraulic oil stored in a hydraulic oil tank to the control valve, a cargo-handling motor that drives the cargo-handling pump, and an on-load valve that returns the hydraulic oil from the control valve to the hydraulic oil tank. The fuel cell system operates the fuel cell system to execute a warm-up control. A vehicle ECU continues supplying power from the fuel cell stack to the cargo-handling motor during the execution of the warm-up control.

The invention relates to a method for controlling a motion of a counter balance forklift truck, the method comprises: detecting that a steering command generated with an endless rotating steering device corresponds to a reference steering point, in response to the detection providing at least two states for selecting a travel direction of the counter balance truck, detecting a selected state in accordance with a detection of a change in a steering command, and generating control signals individually to a plurality of electric drive motors for controlling the motion of the counter balance truck to meet the travel direction selected with the steering device. The invention also relates to a forklift truck implementing the method and to a computer program product.

An apparatus for lifting and transporting loads, in particular corresponding containers, preferably in the form of empty containers, including a support chassis, for resting and movement means of the apparatus with respect to the ground, in particular including means, or front wheels, for resting and movement and means, or rear wheels, for resting and movement, in particular said front and/or rear means, or wheels, for resting and movement having a respective transversal, or horizontal, rotation axis; lifting and lowering means of the load, including a respective mast, in particular extending upwards, and gripping means of the load, which gripping means are mobile along said mast; said mast of said lifting and lowering means of the load being positioned at or posteriorly of the respective rotation axis of the front means, or wheels, for resting and movement of the apparatus with respect to the ground.

A power-assisted steering mechanism of an electric pallet truck includes an operating mechanism, a power assistor assembly, a driving mechanism and a mounting bracket. A handle and a handle seat of the operating mechanism are connected. The power assistor assembly includes a power assist mechanism and a controller. The power assist mechanism is electrically connected to the controller. An input shaft at an upper end of the power assist mechanism is drivably connected to a lower end of the handle seat. The mounting bracket includes a mounting plate and a mounting seat. An outer casing of the power assist mechanism is fixedly connected to the mounting plate. The driving mechanism includes a drive connecting shaft, a reduction gearbox, a driving wheel and a driving motor.

A spring-force adjustable, height-adjustable industrial caster assembly including a mounting plate, a swivel housing that swivels relative to the mounting plate, and a spring assembly having components that are moveable relative to the swivel housing to controllably alter spring deflection and/or caster wheel height, which components can be adjusted by accessing the height-adjustable industrial caster assembly from above, eliminating the need to raise a pallet truck or other moveable assembly to which the caster assembly is coupled, away from the floor to be able to access and adjust the industrial caster assembly.

Controlling a maximum vehicle speed for an industrial vehicle includes determining, by a processor of the industrial vehicle, a torque applied to the traction wheel of the industrial vehicle; converting the torque to an equivalent force value; and determining an acceleration of the industrial vehicle while the torque is applied to the traction wheel. Additional steps include calculating a load being moved by the industrial vehicle, based at least in part on the acceleration and the equivalent force value; and controlling the maximum speed of the industrial vehicle based on the calculated load being moved by the industrial vehicle.

The invention relates to a cargo handling vehicle for handling cargo within narrow aisles. The cargo handling vehicle comprises means for autonomous navigation, a chassis having at least two pairs of ground engaging means, a lifting boom. The lifting boom having a first end and a second end wherein the first end is arranged to the chassis and the second end is provided with a lifting unit. The first end of the lifting boom is attached to the chassis enabling movement of the second end in a vertical and horizontal direction, and the lifting unit is arranged rotatably in a horizontal plane. Each of the ground engaging means are independently steerable and individually driven by a respective driving means. Further, the invention also relates to a method in a cargo handling vehicle.

A housing for a hydraulic actuator unit of a pallet truck is disclosed. The housing includes a lift motor mount for mounting a lift motor to the housing and a pump mount for mounting a hydraulic pump to the housing, and couples the pump to the lift motor when each are mounted. The housing includes a hydraulic cylinder with a cylinder rod, which is positioned based on the fluid level in the hydraulic cylinder; a reservoir to store fluid for actuation of the cylinder rod; and one or more fluid galleries that extend, internal to the housing, among the fluid reservoir, the pump mount, and the hydraulic cylinder. A traction motor mount mounts the traction motor, which is coupled to a steering unit of the pallet truck and controls actuation of a traction wheel of the pallet truck when the traction motor is mounted to the traction motor mount.