Systems and methods for a floor conveyor include a sensor device and a control unit, wherein the control unit is operable to control the travel functions of the floor conveyor, wherein the sensor device is arranged to be able to provide the control unit with sensor data, wherein the sensor device is arranged such that it can detect objects in a plane. The plane is arranged to a have a follow section and a steer away section. And the floor conveyor is arranged such that it can determine an object to follow.

A drive device for driving and rotating a wheel includes an axle shaft, a hub to which rotation of the axle shaft is conveyed, a plurality of fasteners for securing the wheel to the hub, a wet brake, a housing, an oil seal, and a cover. The wet brake is configured to restrain the rotation of the axle shaft. The housing accommodates the axle shaft and the wet brake. The oil seal is disposed between the housing and a part of the hub that is disposed inward of the fasteners in a radial direction of the hub. The cover has an annular shape. The cover is disposed in a space formed between the hub and the housing, and is secured to the housing. The cover is configured to cover the plurality of fasteners.

A system for controlling an industrial truck with a drive portion including a traction drive portion, a steering portion, and a load portion, comprises a portable transmitting unit configured to be positioned away from the industrial truck. The system further comprises at least three transmitting and receiving units positioned in a predetermined spatial arrangement with respect to one another on the drive portion. An evaluation unit is provided that is configured to determine a position of the portable transmitting and receiving unit relative to the industrial truck by measuring signal propagation times. The industrial truck further comprises a control unit configured to send a control command for traction drive and/or steering if the relative position of the portable transmitting and receiving unit is located within a predetermined spatial region relative to the industrial truck.

A wet parking brake device includes a shaft case, a rotary shaft, a plurality of stators, a plurality of brake discs, a piston member, and a pressing mechanism. The wet parking brake device is configured such that the brake discs and the stators come in contact with each other by a pressure from the piston member pressed by the pressing mechanism to thereby generate a braking force against the rotary shaft. The pressing mechanism includes a parking rod. The parking rod includes a rod main body, a turning shaft portion, and a connecting shaft. The shaft case includes an opening and a shaft hole. A length of the parking rod, the diameter of the shaft hole and the diameter of the turning shaft portion are respectively designed such that the turning shaft portion is inserted into the shaft hole when the parking rod is inserted from the opening.

A straddle fork vehicle includes a generally rectangular frame structure with front and rear forklift assemblies positioned between a set of tread belts. The straddle fork vehicle is designed such that the frame may accommodate, or straddle, agricultural harvesting pallets between the set of treads in a passthrough through area beneath the frame as the vehicle progresses down a field row. Engine configuration and improved braking systems facilitate a safer construction and tighter turning radius.

A braking system of an industrial vehicle includes an accumulator accumulating hydraulic oil, a hydraulic oil cooler cooling the hydraulic oil, an electromagnetic switch valve switching between an oil channel for the accumulator that allows supplying the hydraulic oil from a hydraulic pump to the accumulator and an oil channel for the hydraulic cooler that allows supplying the hydraulic oil from the hydraulic pump to the hydraulic oil cooler, and a controller controlling the electromagnetic switch valve to switch from the oil channel for the hydraulic cooler to the oil channel for the accumulator with timing of an increase after a drop in an engine speed when a cargo-handling operation is detected while an oil is at a setting pressure value or less and while the engine speed is at a setting engine speed or less.

An object responsive control system for a work machine having a boom, an attachment pivotally coupled to the boom, an object sensor adapted for sensing the presence of an undesirable object located in a travel path of the work machine and delivering an object signal upon sensing the undesirable object. A controller adapted for receiving a boom position signal, an attachment position signal, and calculating an elevational position based on the boom position signal. The system activating an object response upon calculating an attachment elevation position above a predetermined threshold and receiving an object signal.

A steering device includes: a steering handle; an upper shaft to which the steering handle is connected; a lower shaft that is disposed below the upper shaft; a universal joint that connects the upper shaft with the lower shaft; a column tube that covers an outer periphery of the upper shaft; and a parking brake release lever. The column tube has a lever backing bracket that supports the parking brake release lever swingably around an axis orthogonal to an axial direction of the upper shaft, and the parking brake release lever is disposed under the column tube.

A lift truck (10) has a pair of wheel assemblies (21) each of which is rotatable about a pivot point (24) relative to the chassis (12) of the truck through at least 90 degrees between a forward mode and a sideward mode. The wheel (18,20) of each assembly is laterally offset from the assembly's pivot point (24), causing the wheel to describe an arcuate path over the ground as it transitions between the forward and sideward modes. During the transition, an actuator acts on each wheel assembly (21) to pivot the assembly about the pivot point (24), while drive is applied to the wheel to positively drive the wheel along the arcuate patch at a speed that matches the pivotal rotation caused by the actuator. This positive drive imparted to the wheels (18,20) during the transition prevents the truck from rolling if it is located on a slope during the change in orientation of the wheel assemblies (21).

A rolling lift includes a tiltable and laterally shiftable load table. Tilt mechanisms at the mutual corners of a lift deck and the load table enable tilting of the load table. The apparatus caster units at corners of the cart frame and a handle stowable relative to a base frame of the lift.