Linkage for a door actuator

A linkage for force transmission between a driven axle of a door actuator and an assembly surface, comprising:

• a hinge;
• a fastening arrangement designed to fasten the hinge to the assembly surface, wherein an assembly axis is defined perpendicularly to the assembly surface;
• 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,
• wherein 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 comprises a thermally activatable trigger element that is designed to detach the linkage in the event of thermal activation triggered by a fire;
• and
• a securing element is arranged on a hinge joint or the hinge and is configured for holding together the hinge joint or the hinge,
• wherein the lever arrangement comprises a first lever, the hinge joint, and a connecting element, wherein the connecting element is fastened to the hinge so as to be rotatable, and the first lever is rotatably connected to the connecting element via the hinge joint, wherein a hinge joint axis is perpendicular to the hinge axis.