Patent ID: 7444920

Claim:
Valve element for the activation of a structural element, comprising: three inlet switching valves, through which a pressure-loaded medium can be conducted and which are connected on their inflow side to a pressure supply by means of inflow lines and are arranged parallel to one another in flow terms; a connection element for the structural element, which connection element is connected to outflow sides of all the inlet switching valves by means of pressure lines; a control line acted upon by the medium connected to the pressure supply, three switching-valve groups can be activated by means of the control line, wherein two switching valves and one of the inlet switching valves are assigned to each switching-valve group, wherein an activation valve is interposed in each case between a switching-valve group and the control line, by means of which activation valve the switching actions of the switching valves and of the inlet valve of the corresponding switching-valve group are made possible; and three outflow lines for the medium, which are connected in parallel in flow terms, and are arranged between an outflow location for the medium and the connection element, wherein two switching valves are arranged in a series connection in each of the outflow lines, and wherein the switching valves of each outflow line are actuated by different activation valves.