Hydraulic multiposition valve, in particular a valve for selecting the steering modes of vehicles with multi-axle steering

A hydraulic multiposition valve for selecting the steering modes of vehicles with multi-axle steering, comprising

• a) several position-seat valves (31, 33, 35, 37, 39, 41, 43) which have at least two switching positions and which communicate via lines for the hydraulic medium with one another and with a number of controlled connections (A, B, C, D, L, R) in such a manner that the desired switching positions of the multiposition valve (13) can be selected by the actuation of the seat valves (31-43), and
• b) an actuating arrangement (29) for actuating the seat valves (31-43) which effects a mechanical coupling of the seat valves (31-43) and which is adapted for being locked in detent fashion in the switching positions of the multiposition valve (13),
• said actuating arrangement (29) comprising several cam discs (47, 49, 51, 53, 55, 57, 59) acting upon the seat valves (31-43) and disposed on a common shaft (45) and
• said actuating arrangement (29) further comprising a detent locking gear (61) rotatably driving the shaft (45).