Abstract: A passage barrier includes two guide elements that cooperate such that they define a gate region, through which a person passes from an entrance region into a passage region. The passage barrier has a drive with a drive unit and an output unit. The drive unit, output unit, and a barrier element are operatively connected such that the barrier element is movable via the drive unit into a position closing and a position opening the gate region. The output unit has a hollow shaft with outer and inner shell surfaces. The inner shell surface and drive unit are configured such that the inner shell surface surrounds the drive unit and the hollow shaft has a mount for fixing the barrier element on the hollow shaft. The mount is arranged on the outer shell surface and formed integrally with the hollow shaft.

Abstract: A passage barrier includes two guide elements that cooperate such that they define a gate region, through which a person passes from an entrance region into a passage region. The passage barrier has a drive with a drive unit and an output unit. The drive unit, output unit, and barrier element are operatively connected such that the barrier element is movable via the drive unit into a position closing and a position opening the gate region. The output unit has a hollow shaft with outer and inner shell surfaces. The inner shell surface and drive unit are configured such that the inner shell surface surrounds the drive unit in sections, preferably completely and the hollow shaft has a barrier element mount formed for fixing a barrier element on the hollow shaft. The barrier element mount is arranged on the outer shell surface and formed integrally with the hollow shaft.

Abstract: A door operator for operating a door includes a housing, an output shaft with a cam disc, an opening piston guided in the housing, which piston, on a first side, bears against the cam disc, an energy accumulator acting upon the opening piston for storing a closing energy for the door, and a damping piston guided in a cylindrically shaped hollow space of a cylinder element, and which piston, on a second side, bears against the cam disc, wherein the cylinder element is firmly connected to the opening piston.

Abstract: A door operator for operating a door includes a housing, an output shaft with a cam disc, an opening piston guided in the housing, which piston, on a first side, bears against the cam disc, an energy accumulator acting upon the opening piston for storing a closing energy for the door, and a damping piston guided in a cylindrically shaped hollow space of a cylinder element, and which piston, on a second side, bears against the cam disc, wherein the cylinder element is firmly connected to the opening piston.

Abstract: A locking device having a housing installed in a stationary manner in or at a leaf. The locking device has a locking element that is movable translationally into and out of the housing and has at least a first actuating device including a handle piece accessible from outside the housing that is operatively connected to the locking element such that the locking element is moved when this handle piece is moved along a predetermined movement path. The locking device has a second actuating device received in the housing that includes a transmission device which can be rotationally actuated and turned or rotated by a turning part. The turning part is accessible from outside the housing and is operatively connected to the locking element so that the locking element is moved out of the housing by turning the turning part in a locking direction.

Abstract: A regulating valve, which is attachable in particular in a bore, executed with a female thread, of a hydraulic door closer. The regulating valve has a body adjoined by a regulating section and has a thread located at the body. In order to provide a regulating valve which has a simple configuration, and in which an unwanted, independent adjusting of the regulating valve is excluded during operation, at least one prominence is provided in a reception for an insert part. The prominence engages in a surface of an insert part such that, upon an axial rotational movement of the regulating valve, the insert part is moved in rotational direction. The insert part cooperates in a clamping and a sealing manner with the bore or the female thread of the door closer. In one embodiment, the prominences act as a cam for the insert part.