Straddle carrier with power steering
AssigneeNoell Mobile Systems & Cranes GmbH
InventorsRolf Kuhn, Reinhard Bauer
Life of this patent
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Abstract
A steering system for a straddle carrier includes two side supports with steerable wheels, braces, a hoisting gear, an an upper frame. An operator's cab having a steering wheel is disposed at the upper frame. A servo motor with an inverter is mounted in operative connection with the steering wheel and that operates in four quadrants. The servo motor steers the wheels of the straddle carrier using a steering computer, hydraulic proportional valves, control cylinders, and potentiometers on the side supports.
Claims11
A steering system for a straddle carrier having two side supports with steerable wheels, braces, a hoisting gear, and an upper frame having an operator's cab, the steering system comprising:
- a steering wheel disposed in the operators cab;
- a steering computer;
- a plurality of hydraulic proportional valves;
- a plurality of control cylinders each disposed at one of the two side supports;
- at least one potentiometer disposed at one of the two side supports;
- and
- a servo motor disposed in operative connection with the steering wheel and having an inverter, the servo motor and operating in four quadrants and configured to steer the steerable wheels using the steering computer, the hydraulic proportional valves and the control cylinders.
Dependencies are inferred from the claim text.