Abstract: A linkage for force transmission between a driven axle of a door actuator and an assembly surface, includes a hinge, a fastening arrangement designed for fastening the hinge to the assembly surface, in particular a door, frame or wall, wherein an assembly axis is defined perpendicularly to the assembly surface, and a lever arrangement which is fastened to the hinge so as to be rotatable about a hinge axis perpendicular to the assembly axis and which is designed for rotationally-fixed connection to the driven axle of the door actuator. The linkage is designed to detach through the weight of the door actuator falling down in the event of a fire and/or wherein the linkage includes a thermally activatable trigger element that is designed to detach the linkage in the event of thermal activation triggered by a fire.

Abstract: A fire protection fastening device for fastening a door actuator, includes a frame with a back side, which is to be oriented to a mounting surface, in particular to a door, casing or wall, wherein a mounting axis is defined vertically to the back side. The frame is formed for arrangement between a door actuator and the mounting surface or is an integral component of the door actuator (102), at least one reaction chamber formed in the frame, wherein the frame delimits the reaction chamber on the entire circumference. The reaction chamber is open on the back side and/or on a front side of the frame opposite the back side. The device further includes a drive element made from thermally intumescent material disposed in the reaction chamber and, when activated, is formed for pushing away the door actuator from the mounting surface.

Abstract: A fire protection securing apparatus for securing a door actuator includes a retaining plate, designed for being secured to an assembly surface, in particular door, frame or wall, wherein, perpendicular to the retaining plate, an assembly axis is defined. The fire protection securing apparatus further includes an assembly plate which is secured to the retaining plate and which is designed for receiving the door actuator, and at least one closed reaction chamber arranged between the retaining plate and the assembly plate. The apparatus also includes a drive element of thermally intumescent material which is arranged in the reaction chamber and which is designed to push the assembly plate away from the retaining plate upon thermal activation.

Abstract: A backplate for a door actuator, includes at least two mounting elements, one of the two mounting elements being formed for fastening to a mounting surface, in particular door, casing or wall, and the other mounting element for accommodating the door actuator. The backplate further includes at least one connecting assembly with a bar element mobile disposed at the first mounting element and a thermally activatable trigger element. The bar element is movable from a retaining position to a release position. In the retaining position, the bar element retains the second mounting element and, in the release position, releases the second mounting element. When thermally activated, the trigger element releases a movement of the bar element to the release position and/or, the trigger element moves the bar element to the release position.

Abstract: A door actuator for opening and/or closing a door, includes a fluid housing with an inner compartment, which is filled with fluid, in particular hydraulic oil, a fluid housing opening in the fluid housing for draining the fluid at thermal overload, a thermally activatable valve for opening, which closes the fluid housing opening, and a collecting device, which is disposed outside the fluid housing opposite the fluid housing opening, forms a collecting space for the fluid, is open towards the fluid housing opening, and includes at least one drain opening for draining the fluid from the collecting space.

Abstract: A backplate for a door actuator includes at least one first mounting element and a second mounting element, wherein one of the two mounting elements is formed for fastening to a mounting surface, in particular door, casing or wall, and the other mounting element is formed for receiving the door actuator. The backplate also includes, at least one connecting assembly, which in a retaining position, keeps the two mounting elements together and, in a release position, does not keep the two mounting elements together, and at least one shape memory assembly with a shape memory element made from shape memory material, wherein, upon thermal activation, the shape memory assembly moves the connecting assembly to the release position.

Abstract: A door actuator for opening and/or closing a door leaf includes a housing, an output shaft rotatably supported in the housing and with a cam disc, wherein the output shaft is formed for transferring torque onto the door leaf. A first element of motion is linearly movably guided in the housing with a first contact surface. A second element of motion is linearly movably guided in the housing with a second contact surface. A distancing arrangement is disposed in the housing. The cam disc is disposed between the two contact surfaces and for rolling on the two contact surfaces. In at least one delimiting range of angles of rotation of the output shaft, the distancing arrangement delimits the minimum distance between the elements of motion, and, in at least one free range of angles of rotation, does not delimit the linear mobility of the two elements of motion in relation to each other.

Abstract: A fire protection fastening device for fastening a door actuator, includes a frame with a back side, which is to be oriented to a mounting surface, in particular to a door, casing or wall, wherein a mounting axis is defined vertically to the back side. The frame is formed for arrangement between a door actuator and the mounting surface or is an integral component of the door actuator (102), at least one reaction chamber formed in the frame, wherein the frame delimits the reaction chamber on the entire circumference. The reaction chamber is open on the back side and/or on a front side of the frame opposite the back side. The device further includes a drive element made from thermally intumescent material disposed in the reaction chamber and, when activated, is formed for pushing away the door actuator from the mounting surface.

Abstract: A backplate for a door actuator, includes at least two mounting elements, one of the two mounting elements being formed for fastening to a mounting surface, in particular door, casing or wall, and the other mounting element for accommodating the door actuator. The backplate further includes at least one connecting assembly with a bar element mobile disposed at the first mounting element and a thermally activatable trigger element. The bar element is movable from a retaining position to a release position. In the retaining position, the bar element retains the second mounting element and, in the release position, releases the second mounting element. When thermally activated, the trigger element releases a movement of the bar element to the release position and/or, the trigger element moves the bar element to the release position.

Abstract: A door actuator for opening and/or closing a door, comprising includes a fluid housing with an inner compartment, which is filled with fluid, in particular hydraulic oil, a fluid housing opening in the fluid housing for draining the fluid at thermal overload, a thermally activatable valve for opening, which closes the fluid housing opening, and a collecting device which is disposed outside the fluid housing opposite the fluid housing opening, forms a collecting space for the fluid, is open towards the fluid housing opening, and includes at least one drain opening for draining the fluid from the collecting space.

Abstract: A door closer assembly includes a door closer without a powered drive for closing a door. The door closer includes an energy accumulator, wherein the energy accumulator is chargeable by manually opening the door and wherein the energy accumulator discharges for closing the door. A sensor unit is also included for detecting an angle information with regard to the opening angle of the door.

Abstract: A door actuator for opening and/or closing a door leaf includes a housing, an output shaft rotatably supported in the housing and with a cam disc, wherein the output shaft is formed for transferring torque onto the door leaf. A first element of motion is linearly movably guided in the housing with a first contact surface. A second element of motion is linearly movably guided in the housing with a second contact surface. A distancing arrangement is disposed in the housing. The cam disc is disposed between the two contact surfaces and for rolling on the two contact surfaces. In at least one delimiting range of angles of rotation of the output shaft, the distancing arrangement delimits the minimum distance between the elements of motion, and, in at least one free range of angles of rotation, does not delimit the linear mobility of the two elements of motion in relation to each other.

Abstract: A door drive includes a housing and at least one regulating valve for the adjustable regulation of a fluid flow within the door drive. The one regulating valve or at least one of the several regulating valves includes two ends with respectively one engaging part, in particular for a tool, wherein the one regulating valve or the regulating valves extend/s in such a manner through the housing that the engaging parts for adjusting the one regulating valve or the regulating valves may be manipulated from outside the housing.

Abstract: A door operator for opening and/or for closing a door includes a housing, an output shaft with a cam disc, and a first piston guided in the housing, which first piston bears against the cam disc. The output shaft includes a first axle body supported in the housing. The first axle body is connected to the cam disc in a torque-proof manner by a first plug-in connection.

Abstract: A door drive includes a housing and at least one regulating valve for the adjustable regulation of a fluid flow within the door drive. The one regulating valve or at least one of the several regulating valves includes two ends with respectively one engaging part, in particular for a tool, wherein the one regulating valve or the regulating valves extend/s in such a manner through the housing that the engaging parts for adjusting the one regulating valve or the regulating valves may be manipulated from outside the housing.

Abstract: A power-assisted door closer includes an output shaft, a driving mechanism operatively connected to the output shaft, a mechanical energy accumulator for storing closing energy for the door leaf and acting upon the driving mechanism, a motor/generator unit operatively connected to the output shaft and an electrical energy accumulator for storing an assisting energy for the door leaf and being electrically connected to the motor/generator unit.

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 closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and solenoid control valve, in particular a 3/2-solenoid control valve. A closure damping compartment is formed between the door closer housing and the piston assembly on a side of the piston assembly facing away from the piston rod, and wherein the solenoid control valve controls at least the pressures in the closure damping compartment and in the lock compartment.

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 power-assisted door closer includes an output shaft, a driving mechanism operatively connected to the output shaft, a mechanical energy accumulator for storing closing energy for the door leaf and acting upon the driving mechanism, a motor/generator unit operatively connected to the output shaft and an electrical energy accumulator for storing an assisting energy for the door leaf and being electrically connected to the motor/generator unit.