Abstract: A working vehicle with a transverse system, wherein when a traveling mode is switched to transverse traveling, a switching valve is switched to feed a full flow of pressure oil from a hydraulic pump to a flow divider. The flow divider controls the flow to allow a specified amount of flow to flow to a control valve for a hydraulic operating device. The control valve controls only the pressure oil required for steering to allow oil to flow to the hydraulic operating device so as to operate a hydraulic operating device to rotate both swing members about a vertical axis, thereby to steer both front wheels through 90 degrees. After both front wheels are steered, the vehicle can run transversely in lateral directions by controllably rotating both front wheels.

Abstract: A fork lift with a laterally travelling system, wherein when a running mode is switched from a normal running in which right and left front wheels and rear wheels face in a longitudinal direction to a lateral running, rotating means is operated to rotate a turning member about a vertical axis in order to change the direction of the front wheels relative to that of a vehicle body, a change in running direction can be performed smoothly because the front wheels are formed integrally with a running drive device, and the front wheels are driven in forward and reverse directions by the running drive device after the front wheels are turned to face sideways so that a fork lift can run laterally and the rear wheels can be changed in direction in a follow-up manner by a turning caster system or can be changed in direction forcibly in the same manner as the front wheels, whereby the wheels of a drive system, though the fork lift is of a type capable of performing a normal forking operation, can be steered to face side

Abstract: A fork lift with a laterally travelling system, wherein when a running mode is switched from a normal running in which right and left front wheels and rear wheels face in a longitudinal direction to a lateral running, rotating means is operated to rotate a turning member about a vertical axis in order to change the direction of the front wheels relative to that of a vehicle body, a change in running direction can be performed smoothly because the front wheels are formed integrally with a running drive device, and the front wheels are driven in forward and reverse directions by the running drive device after the front wheels are turned to face sideways so that a fork lift can run laterally and the rear wheels can be changed in direction in a follow-up manner by a turning caster system or can be changed in direction forcibly in the same manner as the front wheels, whereby the wheels of a drive system, though the fork lift is of a type capable of performing a normal forking operation, can be steered to face side

Abstract: A fork lift with a laterally travelling system, wherein when a running mode is switched from a normal running in which right and left front wheels and rear wheels face in a longitudinal direction to a lateral running, rotating means is operated to rotate a turning member about a vertical axis in order to change the direction of the front wheels relative to that of a vehicle body, a change in running direction can be performed smoothly because the front wheels are formed integrally with a running drive device, and the front wheels are driven in forward and reverse directions by the running drive device after the front wheels are turned to face sideways so that a fork lift can run laterally and the rear wheels can be changed in direction in a follow-up manner by a turning caster system or can be changed in direction forcibly in the same manner as the front wheels, whereby the wheels of a drive system, though the fork lift is of a type capable of performing a normal forking operation, can be steered to face side

Abstract: During ordinary travel, a direction change cylinder (51) is actuated by an orbit roll (58) by turning a steering wheel (16) right and left, so that the rear wheels (4) can be turned for direction change in response to the operation of the steering wheel. When the direction change cylinder is actuated to the limit, the right and left rear wheels can be turned for direction change into an inclined state with their rear ends approaching each other, thereby making it possible to make a pivot turn. The front and rear wheel turning devices (30, 50) are actuated to turn the front wheels (3) and rear wheels around vertical axes (27, 49) for direction change by 90 degrees (directed exactly sideways). At this time, in the rear wheel turning device, with the direction change cylinder put in the neutral position, the rear wheel transverse travel cylinders (53) are actuated to turn the rear wheels for direction change by 90 degrees.

Abstract: Front wheels (3A, 3B) are operably connected to hydraulic motors (21A, 21B), and hydraulic pumps (26A, 26B) driven by an engine (25) are provided, each hydraulic pump (26A, 26B) being connected to one of the hydraulic motors (21A, 21B). Control of speed is effected by switching the direction of oil flow from the hydraulic pumps (26A, 26B), changing the direction of rotation of the hydraulic motors (21A, 21B), controlling the rpm of the engine (25) and the flow rate of oil from the hydraulic pumps (26A, 26B), and changing the rpm's of the hydraulic motors (21A, 21B). Control of turning is made possible by controlling, based on the turning angle of a steering wheel or the turning angles of the rear wheels, the respective rotation speeds (equal or different) or the respective directions of rotation (same or opposite) of the front wheels (3A, 3B). Provided is a hydraulically driven forklift employing a 2-pump 2-motor system, which improves maneuverability and reduces the turning radius.