Patent ID: 6968771

Claim:
An actuator cylinder, which is intended to be connected to a pressure-medium system and to be operated using a control valve controlled by an operating lever, which control valve is arranged in connection with the actuator cylinder, and which actuator cylinder includes a cylinder barrel and a piston sealed and arranged to move inside it, a rod attached to the piston, which rod extends outside the cylinder barrel at one end of it, a detector element fitted in connection with the rod, which detector element is arranged to be rotatable around its longitudinal axis, in such a way that its angle of rotation corresponds to the current position of the piston relative to the cylinder barrel, and connections to lead the pressure medium to the piston, according to the position of the control valve, in which actuator cylinder the control valve includes a rotatably supported and multi-part coaxial slide construction, to which the detector element is connected in order to rotate the slide construction to a free-circulation position, when the piston is in a position according to the operating lever, and in order to connect the actuator cylinder to the pressure-medium system, the control valve includes connections between which a through-flow channel is arranged, and the slide construction additionally includes a component shutting off the said through-flow channel, characterized in that, the slide construction has a three-part structure including an outer part and a middle part and an inner part, and the outer part and the inner part are attached to each other, and the middle part forming the said component is connected to the detector element, while the through-flow channel goes through the middle part.