A cylinder lock having a sealing ring (1), a lock cylinder assembly (2) rotatably mounted thereon (1), rotatable relative to the axis of rotation (2), and an actuator in the closed position of the cylinder lock (2) relative to the closure (1) of the roller lock (1), in which the roll bar is fitted. (2) a rotary shaft (5) rotatably mounted relative to one another on the axis of rotation, and at least a one-minute tilt disc (5) and at least one dual-action dial (5a), and a side-lock bolt (9) in the rotating position (1) relative to the closure (1). (2) is provided as a locking rod (9) for rotation allowing for rotation of the at least one conventional tilt disc (5) and for a second functional rotation position relative to the at least one double-function tilt disc (5a). the rotation of the assembly (2) in the enclosure (1) is formed as a locking pin (9). A combination of the recommended cylinder lock and a key which is a service key (20) that moves the individual tilting discs (5) into a single-turn position. A combination of a timing cylinder lock and a key which is a shifting key (37) for removing a cylinder lock assembly (2), which is associated with at least one of the tilting discs (5) in its service rotation position and the at least one dual-function tilt disc (5a) in its second function rotation position. The Aften-compatible key has an elongated plunger (39) on which a plurality of pivoting discs (5) are pivotally spaced apart from each other in the longitudinal direction of the pen, each pivoting section (40) having at least one pivoting face (41) and two adjacent rotation sections (40). ) is formed by a pivoting inclined surface (45) rotating with the pivot wheel (5) and moving the piston (39) longitudinally relative to the pivot wheel (5). An aperture-setting device has a rotatable holding means, to which a key (48) is releasably affixed such that the key (48) extends from the retaining means and the longitudinal axis substantially coincides with the axis of rotation of the holding device; furthermore, the pen (39) has a longitudinal surface machining and thus a shaping means for forming the turning portions (40) and the sloping surface (45); and the first drive unit (55) rotating about the support shaft rotation axis, the second drive unit of the relative movement protection device relative to the axis of rotation between the holding means and the shaping means, and the operation of each drive unit in a predetermined sequence of operations with a control unit (54), the operations comprising first and second actuation of the drive unit. two to two
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