A braking device for a movable door wing comprising an electric motor operated as a generator wherein its motor shaft is rotatable by a movement of the door wing and which outputs a motion-dependent motor voltage, and a braking circuit to which the motor voltage is applied or can be applied and via which the electric motor can be short-circuited in order to dampen a movement of the door wing. In addition, it is provided that the braking device comprises a safety device with a current sensor which is designed to detect amperage generated by the electric motor. The safety device is designed to modify the braking circuit depending on the detected amperage in such a way that upon reaching or exceeding a predetermined or predeterminable overload amperage, the current in the braking circuit is reduced.

A device for locking a leaf of a door or the like comprising at least one electric motor operated as a generator having a motor shaft which is operatively connected to the leaf via a force transmission unit. The motor terminals of at least one electric motor operated as a generator are connected in this regard to a damping circuit for damping the leaf movements. The motor shaft of at least one electric motor operated as a generator is acted on by a brake unit to lock the leaf.

A system for the fixing and/or emergency opening of a leaf of a door, a window or the like comprises a drive having at least one mechanical energy storage device, which is charged by an opening movement of the leaf and is discharged by a closing movement of the leaf, at least one electric motor, the motor shaft of which is operatively connected to the leaf, and open-loop and/or closed-loop control electronics for actuating the electric motor. The electric motor can be actuated by means of the open-loop and/or closed-loop control electronics both for generator-like damping of the leaf movements and for fixing of the leaf against the force of the mechanical storage device and/or for electric motor-driven emergency opening of the leaf, in that the electric motor additionally can be supplied with external electrical energy from an external device, in particular such as a smoke detector control unit, a smoke and heat extraction control unit or the like, for the fixing and/or emergency opening of the leaf.

A door closer with an electric motor-assisted closing feature, that may generate its own power to assist in closing, and controls the speed of opening and closing of the door during generation is disclosed. Embodiments of the present disclosure are realized by a motorized door closer that electrically creates a latch boost force for a closing door. The door closer includes a motor disposed to operatively connect to a door so that the door will be moved toward closed when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the latch boost region or when it otherwise detects that a motor assist is needed.

An apparatus for automation technology, comprising an actuator and an assembly for manual actuation of the actuator, wherein an electrical drive or an electro hydraulic drive is provided as the driving element for the actuator. The assembly includes a generator and a manual actuating element for the generator and wherein the assembly can be electrically coupled with the driving element of the actuator.

A door closer with an electric motor-assisted closing feature, that may generate its own power to assist in closing, and controls the speed of opening and closing of the door during generation is disclosed. Embodiments of the present disclosure are realized by a motorized door closer that electrically creates a latch boost force for a closing door. The door closer includes a motor disposed to operatively connect to a door so that the door will be moved toward closed when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the latch boost region or when it otherwise detects that a motor assist is needed.

An apparatus according to one embodiment includes a door closer having a pinion adapted to be operably coupled to a door and rotate in a first direction in response to opening the door and to rotate in a second direction in response to closing the door, and a power boost module operably coupled to the pinion. The power boost module includes a motor adapted to generate electrical energy via rotational movement of the pinion and supply a boost force to the pinion to assist closing the door, a gearing operably coupled to the pinion and the motor and structured to back drive the motor to generate the electrical energy in response to rotation of the pinion, and an energy storage device adapted to store the electrical energy generated by the motor and supply stored electrical energy to the motor for the boost force.

A method for execution by a computing entity includes interpreting a fluid flow response from fluid flow sensors to produce a piston position of a piston associated with a head unit device. The head unit device includes a chamber filled with a shear thickening fluid (STF). The method further includes determining a door position based on the piston position. The method further includes determining parameters for wireless signals based on the door position. The method further includes facilitating utilization of the parameters for the wireless signals to promote successful communication of status and/or control of the door via the wireless signals.

A control arrangement (20) for controlling movements of an access member (14), the control arrangement comprising a base structure (22); a drive member (32) rotatable about a rotation axis (28); an input member (38) arranged to be driven along an actuation axis (40) by rotation of the drive member, and arranged to move in a lateral direction (74, 76); an output member (50) arranged to be driven by the input member along the actuation axis; an electromagnetic generator (58) arranged to be driven by movement of the output member along the actuation axis to generate electric energy; and a force transmitting arrangement (42, 52; 116) arranged to transmit a relative movement between the input member and the output member along the actuation axis to a movement of the input member in the lateral direction towards the base structure for frictional braking between the input member and the base structure.

A door operator system for opening and closing an opening, comprising a door frame comprising a first frame section and a second frame section on either side the opening. The door is connected to the door frame. A drive unit mounted on the door is moveably connected to first frame section and the second frame section. The drive unit has at least one motor connected to at least one energy storage device arranged to power the at least one motor to move the door from the closed position to the open position. An energy transmitting device is disposed in close proximity to the door and an energy receiving device mounted on the door. The energy transmitting device wirelessly transmits energy to the energy receiving device mounted to the door. The energy receiving device is operatively connected to the at least one energy storage device for charging said energy storage device.