SISTEMAS DE DIRECCION PARA MAQUINAS COMPACTADORAS DE SUPERFICIE.

摘要

The invention relates to a steering system for tandem-type surface compacting machines equipped with two independent steering modes, e.g. machines equipped with both frame steering (3) and with individual steering (6) of one of the rollers (4a). The object is to achieve simultaneous control of both systems, one enabled by a steering wheel-activated control valve (11) and the other enabled by a joystick-activated electric control valve (12), arranged, via switching valves (14) which are activatable with an electric switch, in such a way that the machine operator can instantly select the steering system whose activation with the steering wheel or joystick respectively he deems most appropriate at any given moment.