A brake system for a forklift truck includes a double brake mechanism, having a mechanical brake mechanism further including a foot brake pedestal, a foot pedal, a brake pump having a push rod, a rotation shaft connected to the foot brake pedestal, with the foot pedal being connected to the rotation shaft by a link, a connecting seat on the rotation shaft, wherein the connecting seat is connected to an end of the push rod of the brake pump, a compression spring and a spring sleeve are slidably mounted relative to the rotation shaft and configured to compress the compression spring upon rotation of the rotation shaft, and having an electrical brake mechanism further including a micro switch that receives a signal from a foot pedal movement sensor, wherein the micro switch sends a switch signal to a controller that controls a drive motor of the forklift truck.

An industrial vehicle includes a hydraulically-operated brake device, a hydraulically-operated loading device, an electric motor, a hydraulic pump, a first hydraulic circuit having an accumulator and a detector for detecting pressure accumulated in the accumulator, a first oil passage connecting the first hydraulic circuit and the hydraulic pump, a load handling device, a second hydraulic circuit having a closed center control valve, a second oil passage connecting the second hydraulic circuit and the hydraulic pump, an oil tank, a pressure compensating circuit, a pilot passage, and a controller. When a selector valve is placed in a first position, hydraulic pressure generated by the hydraulic pump is transmitted to a pressure compensating valve in such a direction that disconnects the hydraulic pump from the oil tank to thereby create in the first oil passage hydraulic pressure that causes the accumulator pressure accumulation.

A lifter device includes: a pole; a lifting member configured to be guided by the pole; a motor configured to generate power used for ascending and descending of the lifting member; a transmission mechanism configured to transmit the power of the motor to the lifting member; and a preventing member configured to prevent the descending of the lifting member when the power is not transmitted.

A materials handling vehicle includes a power unit; a load handling assembly coupled to the power unit; at least one obstacle detector mounted to the power unit; and a controller. The at least one obstacle detector detects object located along a path of travel of the power unit, and generate a distance signal upon detecting an object corresponding to a distance between the detected object and the power unit. The controller receives the distance signal and generates a corresponding vehicle stop or predetermined maximum allowable speed signal based on the distance signal, wherein if a sensed object is located within a speed zone associated with a predetermined maximum allowable travel speed comprising a fixed speed greater than zero (0) miles per hour, as determined by the distance signal, the vehicle speed is reduced to the predetermined maximum allowable vehicle speed.

A forklift truck brake system includes a drive, a gear box, a traction motor connected to the gear box, wheels and tires rotatably mounted on opposed ends of the drive axle, the gear box being connected to the drive axle, and the traction motor causes rotation through the gear box to rotate the wheels and tires. The system also includes a brake disc installed on an output shaft of the traction motor, and a brake is configured to clamp the brake disc and stop it from rotating. The brake is used to make the brake disc on the output shaft of the traction motor stop rotating, so that the traction motor stops rotating, and the brake force of the motor is amplified by the gear box and drive axle, to achieve quick braking and reduce the braking distance.

An industrial vehicle includes a hydraulic brake device, a hydraulic load handling device, a first hydraulic circuit, a second hydraulic circuit, a pressure compensating circuit, and a controller. The controller sets an electromagnetic valve to a first position during operation of the load handling device. The controller sets the electromagnetic valve to a second position and controls an electric motor to drive a hydraulic pump when determining that pressure needs to be accumulated in a hydraulic accumulator based on a detection result of a detector. When the electromagnetic valve is at the second position, hydraulic pressure generated by driving the hydraulic pump is applied to a pressure compensating valve and produces a force acting in a direction to disconnect the hydraulic pump and an oil tank from each other, so that hydraulic pressure is generated in a first oil passage to be accumulated in the hydraulic accumulator.

A mobile lift apparatus includes a mobile base frame with sets of height adjustable, triple caster units, frame mounted floor brakes, a load deck, scissor linkage engaged between the base frame and the load deck, and a load table movable on the load deck. An actuator is engaged with the scissor linkage to extend and retract the scissor linkage.

A working machine has a body, a ground-engaging propulsion structure supporting the body, an inclinable working arm pivotally connected to the body mounting a working implement at a distal end thereof, a drive arrangement configured to provide motive power, and a control system configured to determine a center of gravity of the working machine. The control system is configured to control or restrict a speed of movement of the working machine in response to the determined center of gravity.

A control arm lock assembly for a material handling vehicle can include an inner sleeve defining a central opening, an actuator, a stem, selectively actuated via the actuator, arranged within the opening, a bushing arranged within the central opening between the stem and an inner surface of the inner sleeve, and a resilient locking member arranged within the central opening. In one example, the resilient locking member is axially constrained between a head of the stem and the bushing. In one example, actuation of the stem via the actuator compresses the resilient locking member between the head and the bushing. In one example, compression of the resilient locking member causes the resilient locking member to engage the inner surface of the inner sleeve to lock the stem to the inner sleeve.

An industrial vehicle capable of manned travel and unmanned travel by the automated operation includes a vehicle body; and an automated operation unit that is mounted on the vehicle body and in which a plurality of devices for automated operation is integrated. The plurality of devices includes: an automated operation controller controlling the automated operation; a display device on which information related to the automated operation is displayed; an input device on which data related to the automated operation is input; and an emergency stop device causing an emergency stop of the automated operation. The automated operation unit includes an accommodation case accommodating the automated operation controller, the display device, the input device, and the emergency stop device. The accommodation case is positioned in the vehicle body at a height equal to or lower than a height that does not obstruct an operator's view during the manned travel.