An automatic railless ground conveyor installation comprising a passive guide track determining the route network and individual driverless or unmanned traveling conveyor cars, each of which possesses a steering mechanism scanning in a contactless manner the guide track. The steering mechanism comprises a central scanning element which during straight ahead travel of the conveyor car is located over the guide track and after turning of the conveyor car onto the guide track serves to reset the steering deflection of the conveyor car and at least two scanning elements arranged to each side of the central scanning element at a progressively increasing distance therefrom. The outermost scanning elements when activated by the guide track serve to trigger a greater steering deflection than the inner situated scanning elements.
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